/* roulang page: index */
:root {
            --primary-dark: #1E2A38;
            --primary-blue: #3AA5D6;
            --primary-orange: #FF6B35;
            --white: #FFFFFF;
            --light-bg: #F2F6FA;
            --dark-bg: #2B3A4A;
            --text-main: #333333;
            --text-sub: #666666;
            --text-light: #999999;
            --border-light: #E5E9F0;
            --border-lighter: #EDF0F5;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap-desktop: 96px;
            --section-gap-tablet: 72px;
            --section-gap-mobile: 48px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-orange);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 通用按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            min-height: 44px;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary-blue);
            color: var(--white);
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: var(--shadow-sm);
        }

        .btn-dark {
            background-color: var(--primary-dark);
            color: var(--white);
            border: none;
        }
        .btn-dark:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-dark:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
        }
        .btn-outline:hover {
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-outline-light {
            background-color: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--white);
            border-color: var(--white);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 36px;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 18px;
            min-height: 52px;
            border-radius: var(--radius-md);
        }

        .btn-block {
            width: 100%;
        }

        .btn-link {
            color: var(--primary-blue);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
            padding: 4px 8px;
            border-radius: 4px;
            transition: all var(--transition);
        }
        .btn-link:hover {
            color: var(--primary-orange);
            text-decoration: none;
            background-color: rgba(58, 165, 214, 0.08);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-logo:hover {
            color: var(--primary-dark);
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-blue));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }
        .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--primary-orange);
            background-color: rgba(58, 165, 214, 0.06);
        }
        .nav-links li a.active {
            color: var(--primary-blue);
            font-weight: 700;
            background-color: rgba(58, 165, 214, 0.08);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--primary-blue);
            border-radius: 1px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
            background-color: var(--white);
        }
        .lang-switch:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
            background-color: rgba(58, 165, 214, 0.05);
        }
        .lang-switch .divider {
            display: inline-block;
            width: 1px;
            height: 14px;
            background-color: var(--border-light);
            margin: 0 4px;
        }
        .lang-switch .lang-active {
            color: var(--primary-blue);
            font-weight: 700;
        }

        .nav-cta {
            padding: 10px 20px;
            border-radius: var(--radius-md);
            background-color: var(--primary-blue);
            color: var(--white);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-cta:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            background: none;
            border: none;
            cursor: pointer;
            border-radius: var(--radius-sm);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background-color: var(--primary-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }
        .nav-toggle:hover span {
            background-color: var(--primary-orange);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 移动端导航 ========== */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            z-index: 999;
            background-color: var(--white);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
            padding: 16px 24px 24px;
            max-height: calc(100vh - var(--nav-height));
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu ul {
            list-style: none;
        }
        .mobile-menu ul li a {
            display: block;
            padding: 14px 8px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-main);
            border-bottom: 1px solid var(--border-lighter);
            transition: all var(--transition);
        }
        .mobile-menu ul li a:hover {
            color: var(--primary-orange);
            background-color: rgba(58, 165, 214, 0.04);
            padding-left: 12px;
        }
        .mobile-menu ul li a.active {
            color: var(--primary-blue);
            font-weight: 700;
        }
        .mobile-menu .mobile-actions {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 16px;
        }
        .mobile-menu .lang-switch {
            justify-content: center;
            padding: 8px 16px;
        }
        .mobile-menu .nav-cta {
            justify-content: center;
            width: 100%;
            text-align: center;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 24px 80px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: var(--white);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(30, 42, 56, 0.65) 0%, rgba(30, 42, 56, 0.8) 60%, rgba(30, 42, 56, 0.92) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            max-width: 900px;
        }
        .hero-brand-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 20px;
            background-color: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }
        .hero h1 {
            font-family: var(--font-title);
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero p {
            font-size: clamp(16px, 1.8vw, 18px);
            line-height: 1.8;
            max-width: 720px;
            margin: 0 auto 32px;
            color: rgba(255, 255, 255, 0.92);
        }
        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .hero-stats {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-number {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }
        .section-alt {
            background-color: var(--light-bg);
        }
        .section-dark {
            background-color: var(--primary-dark);
            color: var(--white);
        }
        .section-header {
            margin-bottom: 48px;
            max-width: 780px;
        }
        .section-header.center {
            margin: 0 auto 48px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 14px;
            background-color: rgba(58, 165, 214, 0.12);
            color: var(--primary-blue);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .section-title {
            font-family: var(--font-title);
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 700;
            line-height: 1.3;
            color: inherit;
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-sub);
        }
        .section-dark .section-desc,
        .section-dark .section-title,
        .section-dark .section-tag {
            color: var(--white);
        }
        .section-dark .section-tag {
            background-color: rgba(255, 255, 255, 0.15);
            color: var(--white);
        }

        /* ========== 精选分类入口 ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }
        .category-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 24px 20px;
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
            cursor: pointer;
            color: var(--text-main);
        }
        .category-card:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            color: var(--text-main);
        }
        .category-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background-color: rgba(58, 165, 214, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 12px;
            flex-shrink: 0;
        }
        .category-card-name {
            font-weight: 700;
            font-size: 16px;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }
        .category-card-count {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ========== 品牌故事 ========== */
        .brand-story {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: center;
        }
        .brand-story-image {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            min-height: 360px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }
        .brand-story-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 42, 56, 0.3), rgba(58, 165, 214, 0.2));
        }
        .brand-story-content h3 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .brand-story-content p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 14px;
        }
        .brand-story-content .btn {
            margin-top: 12px;
        }

        /* ========== 功能亮点不规则栅格 ========== */
        .feature-bento {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }
        .feature-bento-item {
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-bento-item:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .feature-bento-item.large {
            grid-column: span 7;
        }
        .feature-bento-item.medium {
            grid-column: span 5;
        }
        .feature-bento-item.small {
            grid-column: span 4;
        }
        .feature-bento-item .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background-color: rgba(58, 165, 214, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
        }
        .feature-bento-item h4 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .feature-bento-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        .feature-bento-item .feature-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-top: 14px;
            height: 140px;
        }
        .feature-bento-item .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== 竖屏种草 ========== */
        .vertical-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding: 8px 4px 20px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .vertical-card {
            flex: 0 0 260px;
            scroll-snap-align: start;
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            cursor: pointer;
        }
        .vertical-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
        }
        .vertical-card-image {
            height: 320px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .vertical-card-image .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            background-color: rgba(30, 42, 56, 0.8);
            color: var(--white);
            backdrop-filter: blur(4px);
        }
        .vertical-card-body {
            padding: 18px 16px;
        }
        .vertical-card-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .vertical-card-body p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ========== 使用场景 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }
        .scene-card {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .scene-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .scene-card-image {
            height: 180px;
            background-size: cover;
            background-position: center;
        }
        .scene-card-body {
            padding: 20px;
        }
        .scene-card-body h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .scene-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .scene-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 10px;
            font-size: 12px;
            font-weight: 500;
            background-color: rgba(255, 107, 53, 0.1);
            color: var(--primary-orange);
        }

        /* ========== 爆款清单 ========== */
        .hot-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
        }
        .hot-card {
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
            cursor: pointer;
        }
        .hot-card:hover {
            border-color: var(--primary-orange);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .hot-card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .hot-rank {
            position: absolute;
            top: 12px;
            left: 12px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--primary-orange);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            box-shadow: var(--shadow-sm);
        }
        .hot-rank.top1 {
            background-color: #E6A23C;
        }
        .hot-rank.top2 {
            background-color: #B0B0B0;
        }
        .hot-rank.top3 {
            background-color: #C9925E;
        }
        .hot-card-body {
            padding: 16px;
        }
        .hot-card-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .hot-card-body .hot-price {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-orange);
        }
        .hot-card-body .hot-meta {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ========== 数据指标 ========== */
        .stats-band {
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
            gap: 30px;
            padding: 36px 24px;
            background: linear-gradient(135deg, var(--primary-dark), var(--dark-bg));
            border-radius: var(--radius-lg);
        }
        .stats-band .stat-item {
            text-align: center;
            color: var(--white);
        }
        .stats-band .stat-number {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
        }
        .stats-band .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ========== 深度内容 ========== */
        .deep-content {
            background-color: var(--white);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            max-width: 900px;
            margin: 0 auto;
        }
        .deep-content h3 {
            font-family: var(--font-title);
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .deep-content h4 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 20px 0 10px;
        }
        .deep-content p {
            font-size: 16px;
            line-height: 2;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .deep-content ul {
            list-style: none;
            padding-left: 0;
            margin-bottom: 14px;
        }
        .deep-content ul li {
            position: relative;
            padding-left: 24px;
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 6px;
        }
        .deep-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--primary-blue);
        }

        /* ========== 嘉宾亮点 ========== */
        .guest-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding: 8px 4px 20px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        .guest-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
        }
        .guest-card:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .guest-avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background-color: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 12px;
        }
        .guest-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }
        .guest-role {
            font-size: 13px;
            color: var(--primary-blue);
            font-weight: 600;
            margin-bottom: 10px;
        }
        .guest-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ========== 任务进度 ========== */
        .progress-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
            max-width: 700px;
            margin: 0 auto;
        }
        .progress-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 20px;
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: all var(--transition);
        }
        .progress-item:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-sm);
        }
        .progress-check {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: rgba(58, 165, 214, 0.12);
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .progress-item.done .progress-check {
            background-color: var(--primary-blue);
            color: var(--white);
        }
        .progress-item h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }
        .progress-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ========== 案例展示 ========== */
        .case-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 24px;
            align-items: center;
        }
        .case-row.reverse {
            direction: rtl;
        }
        .case-row.reverse > * {
            direction: ltr;
        }
        .case-card {
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .case-card:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .case-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .case-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .case-result {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            background-color: rgba(255, 107, 53, 0.08);
            color: var(--primary-orange);
            font-weight: 600;
            font-size: 13px;
        }
        .case-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 220px;
            background-size: cover;
            background-position: center;
        }

        /* ========== 观点解读 ========== */
        .opinion-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .opinion-card {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            border-left: 4px solid var(--primary-blue);
            transition: all var(--transition);
        }
        .opinion-card:hover {
            box-shadow: var(--shadow-md);
            border-left-color: var(--primary-orange);
            transform: translateY(-3px);
        }
        .opinion-card blockquote {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-main);
            font-style: italic;
            margin-bottom: 14px;
            quotes: '「' '」';
        }
        .opinion-card .opinion-author {
            font-size: 13px;
            color: var(--text-sub);
            font-weight: 600;
        }

        /* ========== 评价墙 ========== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }
        .review-card {
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
        }
        .review-card:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .review-stars {
            display: flex;
            gap: 4px;
            font-size: 18px;
            color: #FFD700;
            margin-bottom: 10px;
        }
        .review-card p {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-sub);
        }
        .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-blue);
            flex-shrink: 0;
        }

        /* ========== 价格方案 ========== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            align-items: stretch;
        }
        .pricing-card {
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .pricing-card.featured {
            border: 2px solid var(--primary-blue);
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .pricing-card.featured::after {
            content: '推荐';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            padding: 4px 16px;
            background-color: var(--primary-orange);
            color: var(--white);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 700;
        }
        .pricing-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .pricing-price {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 4px;
        }
        .pricing-price span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
        }
        .pricing-period {
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .pricing-features {
            list-style: none;
            text-align: left;
            margin-bottom: 20px;
            flex: 1;
        }
        .pricing-features li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-sub);
            border-bottom: 1px solid var(--border-lighter);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .pricing-features li::before {
            content: '✓';
            color: var(--primary-blue);
            font-weight: 700;
            flex-shrink: 0;
        }
        .pricing-card.featured .pricing-price {
            color: var(--primary-orange);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 10px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-blue);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background-color: var(--light-bg);
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            transition: all var(--transition);
            user-select: none;
            gap: 12px;
            width: 100%;
            text-align: left;
            border-radius: 0;
        }
        .faq-question:hover {
            background-color: rgba(58, 165, 214, 0.1);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-blue);
            transition: all var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary-orange);
        }
        .faq-answer {
            display: none;
            padding: 20px;
            background-color: var(--white);
            border-top: 1px solid var(--border-light);
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ========== 新闻中心 ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-lighter);
            transition: all var(--transition);
            align-items: flex-start;
        }
        .news-item:hover {
            background-color: rgba(58, 165, 214, 0.04);
            padding-left: 12px;
        }
        .news-date {
            flex-shrink: 0;
            min-width: 90px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-blue);
            padding-top: 4px;
        }
        .news-content {
            flex: 1;
        }
        .news-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        /* ========== 加购引导 CTA ========== */
        .cta-band {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--dark-bg) 50%, var(--primary-blue) 100%);
            border-radius: var(--radius-xl);
            padding: 56px 36px;
            text-align: center;
            color: var(--white);
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }
        .cta-band h3 {
            font-family: var(--font-title);
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            margin-bottom: 14px;
            position: relative;
        }
        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
            position: relative;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            position: relative;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 240px;
            height: 44px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.4);
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--white);
            font-size: 15px;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .cta-form input:focus {
            border-color: var(--white);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.15);
            outline: none;
            background-color: rgba(255, 255, 255, 0.15);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--white);
            padding-left: 4px;
        }
        .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .footer-subscribe-form {
            display: flex;
            gap: 8px;
        }
        .footer-subscribe-form input {
            flex: 1;
            height: 40px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background-color: rgba(255, 255, 255, 0.08);
            color: var(--white);
            font-size: 14px;
            transition: all var(--transition);
        }
        .footer-subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-subscribe-form input:focus {
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(58, 165, 214, 0.2);
            outline: none;
        }
        .footer-subscribe-form button {
            height: 40px;
            padding: 0 18px;
            border-radius: var(--radius-sm);
            background-color: var(--primary-blue);
            color: var(--white);
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            transition: all var(--transition);
        }
        .footer-subscribe-form button:hover {
            background-color: var(--primary-orange);
        }
        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 16px;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .footer-bottom {
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: all var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--white);
        }
        .footer-links-bottom {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== 图片占位 ========== */
        .img-placeholder {
            background-color: #E9EEF5;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 13px;
            min-height: 100px;
            border-radius: inherit;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --section-gap-desktop: 72px;
            }
            .nav-links li a {
                padding: 8px 10px;
                font-size: 14px;
            }
            .brand-story {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .brand-story-image {
                min-height: 280px;
            }
            .feature-bento-item.large,
            .feature-bento-item.medium,
            .feature-bento-item.small {
                grid-column: span 6;
            }
            .case-row,
            .case-row.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
                gap: 16px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap-desktop: 56px;
                --nav-height: 60px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                min-height: 70vh;
                padding: 100px 16px 56px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-stats {
                gap: 20px;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header.center {
                margin-bottom: 32px;
            }
            .feature-bento-item.large,
            .feature-bento-item.medium,
            .feature-bento-item.small {
                grid-column: span 12;
            }
            .vertical-card {
                flex: 0 0 220px;
            }
            .vertical-card-image {
                height: 260px;
            }
            .guest-card {
                flex: 0 0 260px;
            }
            .deep-content {
                padding: 24px 18px;
            }
            .category-grid {
                grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            }
            .pricing-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 40px 0 0;
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-date {
                min-width: auto;
            }
            .cta-band {
                padding: 36px 20px;
            }
            .stats-band {
                flex-direction: column;
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap-desktop: 40px;
                --nav-height: 56px;
            }
            .container {
                padding: 0 16px;
            }
            .hero {
                min-height: 65vh;
                padding: 80px 12px 40px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero p {
                font-size: 15px;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .category-card {
                padding: 16px 12px;
            }
            .section-title {
                font-size: 24px;
            }
            .deep-content h3 {
                font-size: 22px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 16px;
                min-height: 44px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links-bottom {
                justify-content: center;
            }
            .lang-switch {
                font-size: 12px;
                padding: 3px 8px;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .opinion-grid {
                grid-template-columns: 1fr;
            }
            .hot-list {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 滚动条美化 */
        .vertical-scroll::-webkit-scrollbar,
        .guest-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .vertical-scroll::-webkit-scrollbar-track,
        .guest-scroll::-webkit-scrollbar-track {
            background: var(--light-bg);
            border-radius: 3px;
        }
        .vertical-scroll::-webkit-scrollbar-thumb,
        .guest-scroll::-webkit-scrollbar-thumb {
            background: #C0C8D4;
            border-radius: 3px;
        }
        .vertical-scroll::-webkit-scrollbar-thumb:hover,
        .guest-scroll::-webkit-scrollbar-thumb:hover {
            background: var(--primary-blue);
        }

/* roulang page: category1 */
:root {
            --primary-dark: #1E2A38;
            --primary-blue: #3AA5D6;
            --primary-orange: #FF6B35;
            --white: #FFFFFF;
            --light-bg: #F2F6FA;
            --dark-bg: #2B3A4A;
            --text-main: #333333;
            --text-sub: #666666;
            --text-light: #999999;
            --border-light: #E5E9F0;
            --border-lighter: #EDF0F5;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap-desktop: 72px;
            --section-gap-tablet: 56px;
            --section-gap-mobile: 40px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: var(--nav-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-orange);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        section {
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            min-height: 44px;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary {
            background-color: var(--primary-blue);
            color: var(--white);
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: var(--shadow-sm);
        }
        .btn-dark {
            background-color: var(--primary-dark);
            color: var(--white);
            border: none;
        }
        .btn-dark:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
        }
        .btn-outline:hover {
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--white);
            border-color: var(--white);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 36px;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 18px;
            min-height: 52px;
            border-radius: var(--radius-md);
        }
        .btn-link {
            color: var(--primary-blue);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
            padding: 4px 8px;
            border-radius: 4px;
            transition: all var(--transition);
            background: none;
        }
        .btn-link:hover {
            color: var(--primary-orange);
            text-decoration: none;
            background-color: rgba(58, 165, 214, 0.08);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
            transition: box-shadow var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            white-space: nowrap;
            text-decoration: none;
        }
        .nav-logo:hover {
            color: var(--primary-blue);
        }
        .nav-logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
            color: var(--white);
            font-size: 18px;
            font-weight: 700;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: block;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            text-decoration: none;
            padding: 4px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary-orange);
        }
        .nav-links a.active {
            color: var(--primary-blue);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 3px;
            background-color: var(--primary-blue);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .lang-switch {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            border: 1px solid var(--border-light);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-sub);
            background: var(--white);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .lang-switch:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
        }
        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background-color: var(--border-light);
        }
        .lang-switch .lang-active {
            color: var(--primary-blue);
            font-weight: 700;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: var(--radius-md);
            background-color: var(--primary-blue);
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            width: 24px;
            height: 2px;
            background-color: var(--primary-dark);
            border-radius: 2px;
            transition: all var(--transition);
            display: block;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding: 20px 0 0;
            background: var(--white);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-sub);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary-blue);
        }
        .breadcrumb .separator {
            color: var(--text-light);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--primary-blue);
            font-weight: 600;
        }

        /* ========== 页头 Hero ========== */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            min-height: 360px;
            display: flex;
            align-items: center;
            margin-top: 8px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 42, 56, 0.85) 0%, rgba(30, 42, 56, 0.55) 50%, rgba(58, 165, 214, 0.35) 100%);
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 1;
            padding: 48px 40px;
            max-width: 720px;
        }
        .page-hero .hero-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 999px;
            background-color: rgba(255, 255, 255, 0.18);
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 18px;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .page-hero h1 {
            font-family: var(--font-title);
            font-size: 42px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .page-hero .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 560px;
        }
        .page-hero .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-white {
            background-color: var(--white);
            color: var(--primary-dark);
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            cursor: pointer;
            min-height: 44px;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-white:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }
        .section-alt {
            background-color: var(--light-bg);
        }
        .section-heading {
            margin-bottom: 36px;
        }
        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-heading p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 720px;
        }
        .section-heading.centered {
            text-align: center;
        }
        .section-heading.centered p {
            margin: 0 auto;
        }

        /* ========== 赛事分类卡片 ========== */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .event-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .event-card .card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .event-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 12px;
            border-radius: 999px;
            background-color: var(--primary-orange);
            color: var(--white);
            font-size: 12px;
            font-weight: 700;
        }
        .event-card .card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-body h3 {
            font-family: var(--font-title);
            font-size: 19px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .event-card .card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .event-card .card-body .meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-lighter);
            padding-top: 14px;
        }
        .event-card .card-body .meta-row .tag {
            color: var(--primary-blue);
            font-weight: 600;
        }

        /* ========== 数据统计 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: var(--radius-lg);
            background: var(--white);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-2px);
        }
        .stat-number {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ========== 图文交替 ========== */
        .alt-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .alt-row .alt-text h2 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .alt-row .alt-text p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .alt-row .alt-text ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .alt-row .alt-text ul li {
            padding: 8px 0;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.7;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .alt-row .alt-text ul li::before {
            content: '●';
            color: var(--primary-blue);
            font-size: 10px;
            margin-top: 6px;
        }
        .alt-row .alt-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .alt-row .alt-img img {
            width: 100%;
            height: 340px;
            object-fit: cover;
        }

        /* ========== 赛事流程 ========== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .process-step {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
            color: var(--white);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ========== 赛事列表 ========== */
        .event-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .event-list-item {
            display: grid;
            grid-template-columns: 120px 1fr auto;
            gap: 20px;
            align-items: center;
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .event-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-2px);
        }
        .event-list-item .date-box {
            text-align: center;
            padding: 12px 8px;
            background: var(--light-bg);
            border-radius: var(--radius-md);
        }
        .event-list-item .date-box .day {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1.2;
        }
        .event-list-item .date-box .month {
            font-size: 13px;
            color: var(--text-sub);
        }
        .event-list-item .event-info h3 {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .event-list-item .event-info p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }
        .event-list-item .event-info .event-tags {
            display: flex;
            gap: 8px;
            margin-top: 8px;
            flex-wrap: wrap;
        }
        .event-list-item .event-info .event-tags span {
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            font-size: 12px;
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            background: var(--white);
        }
        .faq-item:hover {
            border-color: var(--primary-blue);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            background: var(--light-bg);
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            transition: all var(--transition);
            text-align: left;
            border: none;
            font-family: var(--font-body);
        }
        .faq-question:hover {
            background: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-blue);
            transition: all var(--transition);
            border: 1px solid var(--primary-blue);
            border-radius: 50%;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--primary-blue);
            color: var(--white);
        }
        .faq-answer {
            display: none;
            padding: 20px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            background: var(--white);
            border-top: 1px solid var(--border-lighter);
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA 区域 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--dark-bg) 50%, var(--primary-blue) 100%);
            padding: 60px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand h4 {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 16px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary-blue);
            color: var(--white);
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--primary-orange);
        }
        .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .footer-subscribe-form {
            display: flex;
            gap: 10px;
        }
        .footer-subscribe-form input {
            flex: 1;
            padding: 10px 14px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
            font-size: 14px;
            outline: none;
            transition: border-color var(--transition);
            min-height: 44px;
        }
        .footer-subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-subscribe-form input:focus {
            border-color: var(--primary-blue);
        }
        .footer-subscribe-form button {
            padding: 10px 20px;
            border-radius: var(--radius-md);
            background: var(--primary-blue);
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            min-height: 44px;
            white-space: nowrap;
        }
        .footer-subscribe-form button:hover {
            background: var(--primary-orange);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom p {
            font-size: 12px;
            line-height: 1.7;
        }
        .footer-links-bottom {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-links-bottom a:hover {
            color: var(--white);
        }
        .footer-links-bottom span {
            color: rgba(255, 255, 255, 0.3);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1023px) {
            .event-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .alt-row {
                gap: 28px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --nav-height: 60px;
                --section-gap-desktop: 48px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px;
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--border-light);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border-lighter);
                display: block;
                width: 100%;
            }
            .nav-links a:last-child {
                border-bottom: none;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-actions .nav-cta {
                display: none;
            }
            .page-hero {
                min-height: 280px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-content {
                padding: 28px 20px;
            }
            .page-hero .hero-desc {
                font-size: 15px;
            }
            .event-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .alt-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .event-list-item {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 16px;
            }
            .event-list-item .date-box {
                display: inline-block;
                text-align: left;
                padding: 6px 12px;
                width: auto;
            }
            .section-heading h2 {
                font-size: 26px;
            }
            .stat-number {
                font-size: 28px;
            }
        }
        @media (max-width: 519px) {
            :root {
                --section-gap-desktop: 36px;
            }
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .hero-btns {
                flex-direction: column;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 16px;
                min-height: 44px;
            }
        }

/* roulang page: category3 */
:root {
            --primary-dark: #1E2A38;
            --primary-blue: #3AA5D6;
            --primary-orange: #FF6B35;
            --white: #FFFFFF;
            --light-bg: #F2F6FA;
            --dark-bg: #2B3A4A;
            --text-main: #333333;
            --text-sub: #666666;
            --text-light: #999999;
            --border-light: #E5E9F0;
            --border-lighter: #EDF0F5;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap-desktop: 56px;
            --section-gap-tablet: 48px;
            --section-gap-mobile: 40px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-orange);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        /* ========== 通用按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            min-height: 44px;
            white-space: nowrap;
            text-decoration: none;
        }
        .btn-primary {
            background-color: var(--primary-blue);
            color: var(--white);
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: var(--shadow-sm);
        }
        .btn-dark {
            background-color: var(--primary-dark);
            color: var(--white);
            border: none;
        }
        .btn-dark:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-dark:active {
            transform: scale(0.98);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
        }
        .btn-outline:hover {
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--white);
            border-color: var(--white);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 36px;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 18px;
            min-height: 52px;
            border-radius: var(--radius-md);
        }
        .btn-block {
            width: 100%;
        }
        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 10px rgba(0, 0, 0, 0.04);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            text-decoration: none;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--primary-dark);
        }
        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
            color: var(--white);
            border-radius: var(--radius-md);
            font-size: 18px;
            font-weight: 700;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }
        .nav-links li {
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: block;
            padding: 8px 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary-orange);
            background-color: rgba(58, 165, 214, 0.06);
        }
        .nav-links a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background-color: var(--primary-blue);
            border-radius: 1px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .lang-switch {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-sub);
            background-color: var(--white);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .lang-switch:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
        }
        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background-color: var(--border-light);
            display: inline-block;
        }
        .lang-switch .lang-active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            background-color: var(--primary-blue);
            color: var(--white);
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: var(--primary-orange);
            color: var(--white);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background-color: var(--primary-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }
        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            padding-top: calc(var(--nav-height) + 32px);
            padding-bottom: 0;
            background-color: var(--white);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-sub);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary-orange);
        }
        .breadcrumb-nav .separator {
            color: var(--text-light);
        }
        .breadcrumb-nav .current {
            color: var(--primary-blue);
            font-weight: 600;
        }
        /* ========== 页面头 ========== */
        .page-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--dark-bg) 60%, #3A4A5A 100%);
            color: var(--white);
            padding: 48px 0 56px;
            position: relative;
            overflow: hidden;
            border-radius: 0 0 var(--radius-xl) var(--radius-xl);
        }
        .page-header::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(58, 165, 214, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-header::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-header .container {
            position: relative;
            z-index: 1;
        }
        .page-header h1 {
            font-family: var(--font-title);
            font-size: 40px;
            font-weight: 700;
            margin: 0 0 16px;
            line-height: 1.3;
            color: var(--white);
        }
        .page-header .page-header-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 780px;
            line-height: 1.8;
            margin: 0 0 24px;
        }
        .page-header .header-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 32px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }
        .page-header .header-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        /* ========== 板块基础 ========== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }
        .section-alt {
            background-color: var(--light-bg);
        }
        .section-dark {
            background-color: var(--primary-dark);
            color: var(--white);
        }
        .section-title {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 12px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-sub);
            margin: 0 0 32px;
            line-height: 1.8;
            max-width: 720px;
        }
        .section-dark .section-title {
            color: var(--white);
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        /* ========== 装备分类卡片 ========== */
        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .equipment-card {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .equipment-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .equipment-card-img {
            height: 200px;
            background-color: #E9EEF5;
            overflow: hidden;
            position: relative;
        }
        .equipment-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .equipment-card:hover .equipment-card-img img {
            transform: scale(1.05);
        }
        .equipment-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .equipment-card-tag {
            display: inline-block;
            padding: 3px 10px;
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .equipment-card h3 {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--primary-dark);
            line-height: 1.4;
        }
        .equipment-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0 0 16px;
            line-height: 1.7;
            flex: 1;
        }
        .equipment-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-blue);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }
        .equipment-card .card-link:hover {
            color: var(--primary-orange);
            gap: 8px;
        }
        /* ========== 热门装备列表 ========== */
        .hot-equipment-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .hot-equipment-item {
            display: flex;
            gap: 16px;
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            align-items: center;
        }
        .hot-equipment-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-2px);
        }
        .hot-equipment-thumb {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background-color: #E9EEF5;
        }
        .hot-equipment-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hot-equipment-info h4 {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--primary-dark);
            line-height: 1.4;
        }
        .hot-equipment-info p {
            font-size: 13px;
            color: var(--text-sub);
            margin: 0 0 8px;
            line-height: 1.6;
        }
        .hot-equipment-info .hot-price {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-orange);
        }
        .hot-equipment-info .hot-price small {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-light);
            text-decoration: line-through;
            margin-left: 6px;
        }
        /* ========== 选购指南/流程 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }
        .step-item {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition);
            counter-increment: step-counter;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .step-item::before {
            content: counter(step-counter);
            position: absolute;
            top: -14px;
            left: 24px;
            width: 32px;
            height: 32px;
            background-color: var(--primary-blue);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
        }
        .step-item h3 {
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            margin: 8px 0 8px;
            color: var(--primary-dark);
            line-height: 1.4;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.7;
        }
        /* ========== 品牌保障 ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guarantee-item {
            text-align: center;
            padding: 32px 24px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }
        .guarantee-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(58, 165, 214, 0.5);
            transform: translateY(-3px);
        }
        .guarantee-item .guarantee-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-orange) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--white);
            font-weight: 700;
        }
        .guarantee-item h3 {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--white);
            line-height: 1.4;
        }
        .guarantee-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
            line-height: 1.7;
        }
        /* ========== 场景区块 ========== */
        .scene-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            padding: 32px 0;
            border-bottom: 1px solid var(--border-lighter);
        }
        .scene-item:last-child {
            border-bottom: none;
        }
        .scene-item:nth-child(even) {
            direction: rtl;
        }
        .scene-item:nth-child(even) > * {
            direction: ltr;
        }
        .scene-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 280px;
            background-color: #E9EEF5;
            box-shadow: var(--shadow-sm);
        }
        .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-text h3 {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--primary-dark);
            line-height: 1.4;
        }
        .scene-text p {
            font-size: 15px;
            color: var(--text-sub);
            margin: 0 0 16px;
            line-height: 1.8;
        }
        .scene-text .scene-benefit {
            display: inline-block;
            padding: 4px 12px;
            background-color: rgba(255, 107, 53, 0.08);
            color: var(--primary-orange);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }
        /* ========== 深度内容 ========== */
        .deep-content {
            background: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-xl);
            padding: 40px 48px;
            box-shadow: var(--shadow-sm);
            max-width: 900px;
            margin: 0 auto;
        }
        .deep-content h3 {
            font-family: var(--font-title);
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .deep-content h4 {
            font-family: var(--font-title);
            font-size: 19px;
            font-weight: 600;
            color: var(--primary-dark);
            margin: 24px 0 8px;
            line-height: 1.4;
        }
        .deep-content p {
            font-size: 16px;
            color: var(--text-main);
            margin: 0 0 16px;
            line-height: 1.9;
        }
        .deep-content ul {
            margin: 0 0 16px;
            padding-left: 24px;
        }
        .deep-content li {
            font-size: 16px;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.8;
        }
        /* ========== 数据统计 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 24px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(58, 165, 214, 0.5);
        }
        .stat-number {
            font-family: var(--font-title);
            font-size: 40px;
            font-weight: 700;
            color: var(--white);
            margin: 0 0 4px;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin: 0;
        }
        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
            background: var(--white);
        }
        .faq-item:hover {
            border-color: var(--primary-blue);
        }
        .faq-question {
            width: 100%;
            background-color: var(--light-bg);
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            font-family: var(--font-body);
        }
        .faq-question:hover {
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary-blue);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 20px;
            background-color: var(--white);
            border-top: 1px solid var(--border-light);
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
            color: var(--white);
            padding: 64px 0;
            text-align: center;
            border-radius: var(--radius-xl);
            margin: 0 24px 48px;
        }
        .cta-section h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--white);
            line-height: 1.4;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px;
            line-height: 1.8;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            font-size: 18px;
            padding: 14px 36px;
            min-height: 52px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 460px;
            margin: 24px auto 0;
        }
        .cta-form input {
            flex: 1;
            height: 48px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-md);
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            font-size: 15px;
            transition: all var(--transition);
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .cta-form input:focus {
            border-color: var(--white);
            outline: 2px solid var(--primary-orange);
            outline-offset: 2px;
            background: rgba(255, 255, 255, 0.15);
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
            font-size: 14px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer h4 {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            margin: 0 0 12px;
        }
        .site-footer h5 {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 600;
            color: var(--white);
            margin: 0 0 12px;
        }
        .site-footer p {
            margin: 0 0 16px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: var(--white);
            text-decoration: none;
            font-size: 14px;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background-color: var(--primary-blue);
            color: var(--white);
            transform: translateY(-2px);
        }
        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 14px;
            transition: color var(--transition);
        }
        .site-footer ul a:hover {
            color: var(--primary-orange);
        }
        .footer-subscribe p {
            font-size: 13px;
            margin-bottom: 12px;
        }
        .footer-subscribe-form {
            display: flex;
            gap: 8px;
        }
        .footer-subscribe-form input {
            flex: 1;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-sm);
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
            font-size: 13px;
            transition: all var(--transition);
        }
        .footer-subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-subscribe-form input:focus {
            border-color: var(--primary-blue);
            outline: 2px solid var(--primary-blue);
            outline-offset: 2px;
        }
        .footer-subscribe-form button {
            height: 40px;
            padding: 6px 16px;
            background-color: var(--primary-blue);
            color: var(--white);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .footer-subscribe-form button:hover {
            background-color: var(--primary-orange);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom p {
            margin: 0 0 4px;
            font-size: 12px;
        }
        .footer-links-bottom {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 12px;
            transition: color var(--transition);
        }
        .footer-links-bottom a:hover {
            color: var(--white);
        }
        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .equipment-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hot-equipment-list {
                grid-template-columns: 1fr;
            }
            .scene-item {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .scene-item:nth-child(even) {
                direction: ltr;
            }
            .scene-img {
                height: 220px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap-desktop: 48px;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-actions .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-actions .lang-switch {
                font-size: 12px;
                padding: 3px 8px;
            }
            .page-header h1 {
                font-size: 30px;
            }
            .page-header .page-header-desc {
                font-size: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .equipment-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 30px;
            }
            .deep-content {
                padding: 28px 20px;
            }
            .cta-section {
                margin: 0 16px 32px;
                padding: 48px 20px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-form {
                flex-direction: column;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
        }
        @media (max-width: 520px) {
            :root {
                --nav-height: 56px;
                --section-gap-desktop: 40px;
            }
            .container {
                padding: 0 16px;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .page-header {
                padding: 32px 0 40px;
            }
            .section-title {
                font-size: 22px;
            }
            .equipment-card-img {
                height: 160px;
            }
            .stat-number {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .scene-img {
                height: 180px;
            }
            .deep-content h3 {
                font-size: 22px;
            }
        }

/* roulang page: category2 */
:root {
            --primary-dark: #1E2A38;
            --primary-blue: #3AA5D6;
            --primary-orange: #FF6B35;
            --white: #FFFFFF;
            --light-bg: #F2F6FA;
            --dark-bg: #2B3A4A;
            --text-main: #333333;
            --text-sub: #666666;
            --text-light: #999999;
            --border-light: #E5E9F0;
            --border-lighter: #EDF0F5;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --font-title: 'PingFang SC','Microsoft YaHei','Noto Sans SC','Source Han Sans SC',sans-serif;
            --font-body: 'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap-desktop: 72px;
            --section-gap-tablet: 60px;
            --section-gap-mobile: 40px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: var(--nav-height);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-orange);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 通用按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            min-height: 44px;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary-blue);
            color: var(--white);
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: var(--shadow-sm);
        }

        .btn-dark {
            background-color: var(--primary-dark);
            color: var(--white);
            border: none;
        }

        .btn-dark:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-dark:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
        }

        .btn-outline:hover {
            background-color: rgba(58,165,214,0.1);
            color: var(--primary-blue);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-outline-light {
            background-color: transparent;
            color: var(--white);
            border: 1px solid rgba(255,255,255,0.5);
        }

        .btn-outline-light:hover {
            background-color: rgba(255,255,255,0.12);
            color: var(--white);
            border-color: var(--white);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 18px;
            min-height: 52px;
            border-radius: var(--radius-md);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 36px;
            border-radius: var(--radius-sm);
        }

        .btn-block {
            width: 100%;
        }

        .btn-link {
            color: var(--primary-blue);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
            padding: 4px 8px;
            border-radius: 4px;
            transition: all var(--transition);
        }

        .btn-link:hover {
            color: var(--primary-orange);
            text-decoration: none;
            background-color: rgba(58,165,214,0.08);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: rgba(255,255,255,0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            font-family: var(--font-title);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-logo:hover {
            color: var(--primary-blue);
        }

        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
            color: var(--white);
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-block;
            padding: 6px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--primary-orange);
            background-color: rgba(58,165,214,0.06);
        }

        .nav-links a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 12px;
            right: 12px;
            height: 2px;
            background-color: var(--primary-blue);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-sub);
            font-weight: 500;
            transition: all var(--transition);
            background-color: var(--white);
            white-space: nowrap;
        }

        .lang-switch .divider {
            width: 1px;
            height: 12px;
            background-color: var(--border-light);
        }

        .lang-switch .lang-active {
            color: var(--primary-blue);
            font-weight: 700;
        }

        .lang-switch:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: var(--radius-md);
            background-color: var(--primary-blue);
            color: var(--white);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition);
        }

        .nav-toggle:hover {
            background-color: var(--light-bg);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background-color: var(--primary-dark);
            transition: all var(--transition);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-section {
            background-color: var(--light-bg);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            list-style: none;
            flex-wrap: wrap;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--text-light);
            margin-left: 4px;
        }

        .breadcrumb a {
            color: var(--text-sub);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary-blue);
        }

        .breadcrumb li:last-child {
            color: var(--primary-blue);
            font-weight: 600;
        }

        /* ========== Hero ========== */
        .training-hero {
            position: relative;
            padding: 72px 0 88px;
            background: linear-gradient(180deg, var(--light-bg) 0%, var(--white) 100%);
            overflow: hidden;
        }

        .training-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(58,165,214,0.15) 0%, rgba(58,165,214,0) 70%);
            pointer-events: none;
        }

        .training-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,107,53,0.1) 0%, rgba(255,107,53,0) 70%);
            pointer-events: none;
        }

        .training-hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .training-hero-content {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .training-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            background-color: rgba(58,165,214,0.1);
            color: var(--primary-blue);
            font-size: 13px;
            font-weight: 600;
            width: fit-content;
            border: 1px solid rgba(58,165,214,0.2);
        }

        .training-hero h1 {
            font-family: var(--font-title);
            font-size: 44px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary-dark);
            letter-spacing: 1px;
            margin: 0;
        }

        .training-hero h1 .highlight {
            color: var(--primary-blue);
            position: relative;
        }

        .training-hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 8px;
            background-color: rgba(58,165,214,0.2);
            border-radius: 4px;
            z-index: -1;
        }

        .training-hero-subtitle {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-sub);
            max-width: 520px;
            margin: 0;
        }

        .training-hero-ctas {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .training-hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }

        .training-hero-stat {
            display: flex;
            flex-direction: column;
        }

        .training-hero-stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            font-family: var(--font-title);
            line-height: 1.3;
        }

        .training-hero-stat-number .accent {
            color: var(--primary-orange);
        }

        .training-hero-stat-label {
            font-size: 13px;
            color: var(--text-light);
        }

        /* 演示区 */
        .training-hero-visual {
            position: relative;
        }

        .training-hero-visual-main {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            background-color: var(--white);
            position: relative;
        }

        .training-hero-visual-main img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .training-hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(180deg, rgba(30,42,56,0) 0%, rgba(30,42,56,0.85) 100%);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .training-hero-visual-overlay h3 {
            font-size: 18px;
            color: var(--white);
            font-weight: 600;
            font-family: var(--font-title);
        }

        .training-hero-visual-overlay p {
            font-size: 14px;
            color: rgba(255,255,255,0.8);
            line-height: 1.6;
        }

        .training-hero-float-card {
            position: absolute;
            top: -20px;
            right: -16px;
            background-color: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            z-index: 3;
        }

        .training-hero-float-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background-color: rgba(58,165,214,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary-blue);
            flex-shrink: 0;
        }

        .training-hero-float-card-text {
            display: flex;
            flex-direction: column;
        }

        .training-hero-float-card-text strong {
            font-size: 15px;
            color: var(--primary-dark);
        }

        .training-hero-float-card-text span {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: var(--section-gap-desktop) 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            background-color: rgba(58,165,214,0.08);
            color: var(--primary-blue);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.4;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 720px;
        }

        /* ========== 卖点区 ========== */
        .features-section {
            background-color: var(--white);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .feature-card:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(58,165,214,0.15), rgba(30,42,56,0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary-blue);
            flex-shrink: 0;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary-dark);
            font-family: var(--font-title);
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== 课程项目区 ========== */
        .courses-section {
            background-color: var(--light-bg);
        }

        .courses-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .course-card {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .course-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-4px);
        }

        .course-card-image {
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
            background-color: #E9EEF5;
        }

        .course-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .course-card:hover .course-card-image img {
            transform: scale(1.05);
        }

        .course-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            background-color: var(--primary-blue);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
        }

        .course-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .course-card-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary-dark);
            font-family: var(--font-title);
            line-height: 1.4;
        }

        .course-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .course-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 4px;
        }

        .course-tag {
            padding: 3px 10px;
            border-radius: 12px;
            background-color: var(--light-bg);
            color: var(--text-sub);
            font-size: 12px;
            font-weight: 500;
        }

        .course-card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary-blue);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            margin-top: 8px;
        }

        .course-card-link:hover {
            color: var(--primary-orange);
            gap: 8px;
        }

        /* ========== 流程区 ========== */
        .process-section {
            background-color: var(--white);
        }

        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }

        .process-flow::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-blue), var(--primary-orange));
            opacity: 0.3;
            border-radius: 2px;
            z-index: 0;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .process-step-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background-color: var(--white);
            border: 2px solid var(--primary-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-blue);
            font-family: var(--font-title);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .process-step:hover .process-step-number {
            background-color: var(--primary-blue);
            color: var(--white);
            border-color: var(--primary-blue);
            transform: scale(1.08);
            box-shadow: var(--shadow-md);
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary-dark);
            font-family: var(--font-title);
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            max-width: 220px;
        }

        /* ========== 效果案例 ========== */
        .results-section {
            background-color: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }

        .results-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(58,165,214,0.12) 0%, rgba(58,165,214,0) 70%);
            pointer-events: none;
        }

        .results-section .section-title {
            color: var(--white);
        }

        .results-section .section-desc {
            color: rgba(255,255,255,0.7);
        }

        .results-section .section-tag {
            background-color: rgba(255,255,255,0.1);
            color: var(--primary-orange);
        }

        .results-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .result-card {
            background-color: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .result-card:hover {
            background-color: rgba(255,255,255,0.1);
            border-color: rgba(58,165,214,0.5);
            transform: translateY(-4px);
        }

        .result-card-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            background-color: rgba(255,107,53,0.2);
            color: var(--primary-orange);
            font-size: 12px;
            font-weight: 600;
            width: fit-content;
        }

        .result-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--white);
            font-family: var(--font-title);
            line-height: 1.5;
        }

        .result-card p {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            line-height: 1.7;
            margin: 0;
        }

        .result-card-metric {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-orange);
            font-family: var(--font-title);
            line-height: 1.3;
        }

        .result-card-metric span {
            font-size: 15px;
            font-weight: 500;
            color: rgba(255,255,255,0.6);
            margin-left: 6px;
        }

        /* ========== 深度内容 ========== */
        .deep-content-section {
            background-color: var(--white);
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .deep-content-text {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .deep-content-text h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--primary-dark);
            font-family: var(--font-title);
            line-height: 1.5;
        }

        .deep-content-text p {
            font-size: 16px;
            color: var(--text-main);
            line-height: 1.9;
            margin: 0;
        }

        .deep-content-text ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .deep-content-text ul li {
            padding-left: 24px;
            position: relative;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.8;
        }

        .deep-content-text ul li::before {
            content: '🏃';
            position: absolute;
            left: 0;
            top: 0;
            font-size: 14px;
        }

        .deep-content-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }

        .deep-content-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .deep-content-quote {
            background-color: var(--light-bg);
            border-left: 4px solid var(--primary-blue);
            padding: 20px 24px;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            margin: 8px 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background-color: var(--light-bg);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            background-color: var(--white);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background-color: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            font-family: var(--font-body);
            transition: background-color var(--transition);
            min-height: 52px;
        }

        .faq-question:hover {
            background-color: rgba(58,165,214,0.1);
        }

        .faq-item.active .faq-question {
            background-color: rgba(58,165,214,0.08);
            color: var(--primary-blue);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            position: relative;
            transition: transform var(--transition);
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background-color: var(--primary-blue);
            border-radius: 2px;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 18px 24px 20px;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: var(--section-gap-desktop) 0;
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            right: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0) 70%);
            transform: translateY(-50%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,107,53,0.2) 0%, rgba(255,107,53,0) 70%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }

        .cta-section h2 {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.4;
            letter-spacing: 0.5px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255,255,255,0.85);
            line-height: 1.8;
            max-width: 560px;
            margin: 0;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-buttons .btn-outline-light:hover {
            background-color: var(--white);
            color: var(--primary-dark);
            border-color: var(--white);
        }

        .cta-subscribe {
            display: flex;
            gap: 8px;
            max-width: 480px;
            width: 100%;
            margin-top: 8px;
        }

        .cta-subscribe input {
            flex: 1;
            height: 48px;
            padding: 8px 16px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.3);
            background-color: rgba(255,255,255,0.12);
            color: var(--white);
            font-size: 15px;
            outline: none;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }

        .cta-subscribe input::placeholder {
            color: rgba(255,255,255,0.6);
        }

        .cta-subscribe input:focus {
            border-color: var(--white);
            background-color: rgba(255,255,255,0.2);
            box-shadow: 0 0 0 3px rgba(255,255,255,0.15);
        }

        .cta-subscribe button {
            height: 48px;
            padding: 0 24px;
            border-radius: var(--radius-md);
            background-color: var(--primary-orange);
            color: var(--white);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .cta-subscribe button:hover {
            background-color: var(--white);
            color: var(--primary-orange);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
            font-size: 14px;
        }

        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-brand h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--white);
            font-family: var(--font-title);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background-color: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background-color: var(--primary-blue);
            color: var(--white);
            transform: translateY(-2px);
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 14px;
            font-family: var(--font-title);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            color: rgba(255,255,255,0.6);
            font-size: 13px;
            transition: all var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--primary-orange);
            padding-left: 4px;
        }

        .footer-subscribe p {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .footer-subscribe-form {
            display: flex;
            gap: 8px;
        }

        .footer-subscribe-form input {
            flex: 1;
            height: 42px;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,255,255,0.15);
            background-color: rgba(255,255,255,0.06);
            color: var(--white);
            font-size: 13px;
            outline: none;
            transition: all var(--transition);
        }

        .footer-subscribe-form input::placeholder {
            color: rgba(255,255,255,0.4);
        }

        .footer-subscribe-form input:focus {
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(58,165,214,0.2);
        }

        .footer-subscribe-form button {
            padding: 0 18px;
            border-radius: var(--radius-sm);
            background-color: var(--primary-blue);
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .footer-subscribe-form button:hover {
            background-color: var(--primary-orange);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0;
            font-size: 12px;
            color: rgba(255,255,255,0.45);
        }

        .footer-bottom p {
            margin: 0;
            line-height: 1.7;
        }

        .footer-links-bottom {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .footer-links-bottom a {
            color: rgba(255,255,255,0.45);
            font-size: 12px;
            transition: color var(--transition);
        }

        .footer-links-bottom a:hover {
            color: var(--primary-orange);
        }

        .footer-links-bottom span {
            color: rgba(255,255,255,0.3);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --section-gap-desktop: 60px;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .courses-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .results-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-flow {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .process-flow::before {
                display: none;
            }

            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .deep-content-image {
                position: static;
            }

            .training-hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .training-hero-visual {
                max-width: 560px;
                margin: 0 auto;
                width: 100%;
            }

            .training-hero-float-card {
                right: 0;
                top: -16px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap-desktop: 48px;
                --nav-height: 60px;
            }

            body {
                padding-top: 60px;
            }

            .site-header .container {
                padding: 0 16px;
            }

            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--white);
                border-bottom: 1px solid var(--border-light);
                padding: 16px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
                box-shadow: var(--shadow-md);
                z-index: 999;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: var(--radius-md);
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-links a.active {
                background-color: rgba(58,165,214,0.1);
                color: var(--primary-blue);
            }

            .nav-toggle {
                display: flex;
            }

            .lang-switch {
                font-size: 12px;
                padding: 4px 10px;
            }

            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }

            .training-hero {
                padding: 40px 0 56px;
            }

            .training-hero h1 {
                font-size: 32px;
            }

            .training-hero-subtitle {
                font-size: 16px;
            }

            .training-hero-stats {
                gap: 20px;
            }

            .training-hero-stat-number {
                font-size: 22px;
            }

            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .courses-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .process-flow {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .results-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .deep-content-text h3 {
                font-size: 19px;
            }

            .section-title {
                font-size: 26px;
            }

            .cta-section h2 {
                font-size: 28px;
            }

            .cta-subscribe {
                flex-direction: column;
            }

            .cta-subscribe button {
                width: 100%;
            }

            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .site-header .nav-actions .nav-cta {
                padding: 7px 12px;
                font-size: 12px;
            }

            .breadcrumb {
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap-desktop: 32px;
                --nav-height: 56px;
            }

            body {
                padding-top: 56px;
                font-size: 15px;
            }

            .site-header .container {
                padding: 0 12px;
                gap: 10px;
            }

            .nav-logo {
                font-size: 16px;
                gap: 6px;
            }

            .nav-logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }

            .nav-actions {
                gap: 6px;
            }

            .lang-switch {
                font-size: 11px;
                padding: 3px 8px;
                gap: 4px;
            }

            .nav-cta {
                padding: 6px 10px;
                font-size: 11px;
            }

            .nav-toggle {
                width: 36px;
                height: 36px;
                padding: 6px;
            }

            .nav-toggle span {
                width: 18px;
            }

            .training-hero {
                padding: 28px 0 40px;
            }

            .training-hero h1 {
                font-size: 26px;
                line-height: 1.35;
            }

            .training-hero-subtitle {
                font-size: 14px;
                line-height: 1.7;
            }

            .training-hero-ctas .btn {
                padding: 10px 18px;
                font-size: 14px;
                min-height: 40px;
            }

            .training-hero-float-card {
                padding: 10px 14px;
                gap: 8px;
                top: -10px;
                right: -4px;
            }

            .training-hero-float-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .training-hero-visual-overlay {
                padding: 14px;
            }

            .training-hero-visual-overlay h3 {
                font-size: 15px;
            }

            .section-title {
                font-size: 22px;
            }

            .section-desc {
                font-size: 14px;
            }

            .feature-card {
                padding: 20px 16px;
            }

            .course-card-body {
                padding: 18px;
            }

            .result-card {
                padding: 20px 16px;
            }

            .result-card-metric {
                font-size: 26px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
                min-height: 46px;
            }

            .faq-answer {
                font-size: 14px;
            }

            .faq-item.active .faq-answer {
                padding: 14px 16px 16px;
            }

            .cta-section h2 {
                font-size: 24px;
            }

            .cta-section p {
                font-size: 15px;
            }

            .footer-subscribe-form {
                flex-direction: column;
            }
        }

/* roulang page: category4 */
:root {
            --primary-dark: #1E2A38;
            --primary-blue: #3AA5D6;
            --primary-orange: #FF6B35;
            --white: #FFFFFF;
            --light-bg: #F2F6FA;
            --dark-bg: #2B3A4A;
            --text-main: #333333;
            --text-sub: #666666;
            --text-light: #999999;
            --border-light: #E5E9F0;
            --border-lighter: #EDF0F5;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', 'Source Han Sans CN', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, 'Helvetica Neue', sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap-desktop: 72px;
            --section-gap-tablet: 56px;
            --section-gap-mobile: 40px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary-orange);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 通用按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            min-height: 44px;
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary-blue);
            color: var(--white);
            border: none;
        }

        .btn-primary:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: var(--shadow-sm);
        }

        .btn-dark {
            background-color: var(--primary-dark);
            color: var(--white);
            border: none;
        }

        .btn-dark:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-dark:active {
            transform: scale(0.98);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
        }

        .btn-outline:hover {
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            transform: translateY(-1px);
        }

        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-outline-light {
            background-color: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--white);
            border-color: var(--white);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 36px;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 18px;
            min-height: 52px;
            border-radius: var(--radius-md);
        }

        .btn-block {
            width: 100%;
        }

        .btn-link {
            color: var(--primary-blue);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
            padding: 4px 8px;
            border-radius: 4px;
            transition: all var(--transition);
        }

        .btn-link:hover {
            color: var(--primary-orange);
            text-decoration: none;
            background-color: rgba(58, 165, 214, 0.08);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-lighter);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.03);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
        }

        .nav-logo-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, #33475C 100%);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 700;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 6px;
            flex: 1;
            justify-content: center;
            margin: 0 20px;
            flex-wrap: nowrap;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary-orange);
            background-color: rgba(58, 165, 214, 0.06);
        }

        .nav-links a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            display: block;
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background-color: var(--primary-blue);
            border-radius: 1px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .lang-switch {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-sub);
            font-weight: 500;
            background: var(--white);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .lang-switch:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
        }

        .lang-switch .divider {
            width: 1px;
            height: 12px;
            background: var(--border-light);
            display: inline-block;
        }

        .lang-switch .lang-active {
            color: var(--primary-blue);
            font-weight: 700;
        }

        .nav-cta {
            padding: 9px 18px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            background-color: var(--primary-blue);
            color: var(--white);
            white-space: nowrap;
            transition: all var(--transition);
        }

        .nav-cta:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--primary-dark);
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrapper {
            padding-top: calc(var(--nav-height) + 24px);
            background: var(--light-bg);
            border-bottom: 1px solid var(--border-lighter);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            padding: 14px 0;
        }

        .breadcrumb a {
            color: var(--text-sub);
        }

        .breadcrumb a:hover {
            color: var(--primary-blue);
        }

        .breadcrumb .current {
            color: var(--primary-blue);
            font-weight: 600;
        }

        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 12px;
        }

        /* ========== Hero ========== */
        .news-hero {
            position: relative;
            background: var(--light-bg);
            padding: 60px 0 70px;
            overflow: hidden;
        }

        .news-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: linear-gradient(135deg, rgba(30, 42, 56, 0.04) 0%, rgba(58, 165, 214, 0.08) 100%);
            border-radius: 0 0 0 60px;
            pointer-events: none;
        }

        .news-hero .container {
            position: relative;
            z-index: 1;
        }

        .news-hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .news-hero-content h1 {
            font-family: var(--font-title);
            font-size: 44px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary-dark);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .news-hero-content h1 .highlight {
            color: var(--primary-blue);
        }

        .news-hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-sub);
            margin-bottom: 24px;
            max-width: 560px;
        }

        .news-hero-stats {
            display: flex;
            gap: 28px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .news-hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .news-hero-stat .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.2;
        }

        .news-hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-sub);
        }

        .news-hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .news-hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            min-height: 320px;
            background-color: #E9EEF5;
        }

        .news-hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .news-hero-visual .visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 24px 20px;
            background: linear-gradient(to top, rgba(30, 42, 56, 0.85) 0%, rgba(30, 42, 56, 0.2) 60%, transparent 100%);
            color: var(--white);
            z-index: 2;
        }

        .visual-overlay .overlay-tag {
            display: inline-block;
            background-color: var(--primary-orange);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
        }

        .visual-overlay .overlay-title {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .visual-overlay .overlay-meta {
            font-size: 13px;
            opacity: 0.85;
        }

        /* ========== 板块通用标题 ========== */
        .section-header {
            margin-bottom: 36px;
        }

        .section-header .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--primary-blue);
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--primary-dark);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 680px;
            line-height: 1.8;
        }

        .section {
            padding: var(--section-gap-desktop) 0;
        }

        .section-alt {
            background: var(--light-bg);
        }

        .section-dark {
            background: var(--primary-dark);
            color: var(--white);
        }

        .section-dark .section-header h2 {
            color: var(--white);
        }

        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== 头条新闻 ========== */
        .headline-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 28px;
        }

        .headline-main {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-lighter);
            background: var(--white);
            transition: all var(--transition);
            display: block;
            min-height: 380px;
        }

        .headline-main:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary-blue);
        }

        .headline-main img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            background-color: #E9EEF5;
        }

        .headline-main-content {
            padding: 24px;
        }

        .headline-main-content .tag {
            display: inline-block;
            background: var(--primary-orange);
            color: var(--white);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
        }

        .headline-main-content h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .headline-main-content p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .headline-main-content .meta {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .headline-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .headline-side-item {
            display: flex;
            gap: 14px;
            background: var(--white);
            border: 1px solid var(--border-lighter);
            border-radius: var(--radius-lg);
            padding: 16px;
            transition: all var(--transition);
            align-items: center;
        }

        .headline-side-item:hover {
            border-color: var(--primary-blue);
            box-shadow: var(--shadow-sm);
        }

        .headline-side-item img {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            background-color: #E9EEF5;
        }

        .headline-side-item .side-content {
            flex: 1;
            min-width: 0;
        }

        .headline-side-item .side-content h4 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--primary-dark);
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .headline-side-item .side-content .meta {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ========== 分类主题卡片 ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--white);
            border: 1px solid var(--border-lighter);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: block;
            text-decoration: none;
            color: var(--text-main);
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            color: var(--text-main);
        }

        .topic-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background-color: #E9EEF5;
        }

        .topic-card-body {
            padding: 18px 20px;
        }

        .topic-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .topic-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .topic-card-body .topic-count {
            display: inline-block;
            margin-top: 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-blue);
            background: rgba(58, 165, 214, 0.08);
            padding: 3px 12px;
            border-radius: 12px;
        }

        /* ========== 新闻时间线 ========== */
        .timeline-list {
            position: relative;
            padding-left: 28px;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 8px;
            width: 2px;
            background: var(--border-light);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            padding: 24px 0 24px 20px;
            border-bottom: 1px solid var(--border-lighter);
            transition: all var(--transition);
        }

        .timeline-item:last-child {
            border-bottom: none;
        }

        .timeline-item:hover {
            background-color: rgba(58, 165, 214, 0.03);
            border-radius: var(--radius-md);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            top: 30px;
            left: -24px;
            width: 10px;
            height: 10px;
            background: var(--white);
            border: 2px solid var(--primary-blue);
            border-radius: 50%;
            transition: all var(--transition);
        }

        .timeline-item:hover::before {
            background: var(--primary-blue);
            border-color: var(--primary-blue);
        }

        .timeline-item .timeline-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-blue);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .timeline-item h4 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }

        .timeline-item p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 10px;
            max-width: 800px;
        }

        .timeline-item .timeline-actions {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        /* ========== 深度专题 ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-lighter);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary-blue);
        }

        .feature-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            background-color: #E9EEF5;
        }

        .feature-card-body {
            padding: 24px;
        }

        .feature-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .feature-card-body p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        /* ========== 数据统计 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .stat-card .stat-icon {
            font-size: 32px;
            margin-bottom: 12px;
            display: block;
        }

        .stat-card .stat-value {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--white);
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }

        .stat-card .stat-name {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* ========== 订阅CTA ========== */
        .cta-card {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #2B3A4A 60%, var(--primary-blue) 160%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(58, 165, 214, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-card h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 580px;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            width: 100%;
            position: relative;
            z-index: 1;
        }

        .subscribe-form input {
            flex: 1;
            height: 48px;
            background: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-md);
            padding: 8px 16px;
            font-size: 15px;
            color: var(--text-main);
            transition: all var(--transition);
        }

        .subscribe-form input::placeholder {
            color: var(--text-light);
        }

        .subscribe-form input:focus {
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(58, 165, 214, 0.2);
            outline: none;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border-lighter);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            background: var(--light-bg);
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            transition: all var(--transition);
            text-align: left;
            width: 100%;
            border: none;
            user-select: none;
        }

        .faq-question:hover {
            background: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary-blue);
            font-weight: 400;
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary-orange);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            background: var(--white);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 18px 20px;
            border-top: 1px solid var(--border-lighter);
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 24px;
            margin-top: 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            font-family: var(--font-title);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 16px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary-blue);
            color: var(--white);
            transform: translateY(-2px);
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: all var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--primary-orange);
            padding-left: 4px;
        }

        .footer-subscribe p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 14px;
        }

        .footer-subscribe-form {
            display: flex;
            gap: 8px;
        }

        .footer-subscribe-form input {
            flex: 1;
            height: 42px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-md);
            padding: 8px 14px;
            font-size: 14px;
            color: var(--white);
            transition: all var(--transition);
        }

        .footer-subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-subscribe-form input:focus {
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(58, 165, 214, 0.2);
            outline: none;
        }

        .footer-subscribe-form button {
            height: 42px;
            padding: 8px 18px;
            background: var(--primary-blue);
            color: var(--white);
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .footer-subscribe-form button:hover {
            background: var(--primary-orange);
            color: var(--white);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom p {
            margin-bottom: 4px;
        }

        .footer-links-bottom {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 12px;
            transition: color var(--transition);
        }

        .footer-links-bottom a:hover {
            color: var(--primary-orange);
        }

        /* ========== 响应式设计 ========== */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }

            .nav-links a {
                padding: 6px 10px;
                font-size: 14px;
            }

            .news-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .news-hero-visual {
                min-height: 260px;
            }

            .topic-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .headline-grid {
                grid-template-columns: 1fr;
            }

            .headline-main {
                min-height: auto;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap-desktop: 48px;
            }

            .container {
                padding: 0 16px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border-lighter);
                display: none;
                margin: 0;
                z-index: 999;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 10px 14px;
                font-size: 16px;
                width: 100%;
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-actions {
                gap: 8px;
            }

            .nav-cta {
                display: none;
            }

            .news-hero-content h1 {
                font-size: 32px;
            }

            .news-hero-stats {
                gap: 18px;
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-card {
                padding: 36px 24px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                width: 100%;
            }

            .headline-side-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .headline-side-item img {
                width: 100%;
                height: 140px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }

            .news-hero {
                padding: 40px 0 48px;
            }

            .news-hero-content h1 {
                font-size: 26px;
            }

            .news-hero-desc {
                font-size: 15px;
            }

            .news-hero-visual {
                min-height: 200px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .headline-main-content h3 {
                font-size: 18px;
            }

            .timeline-item h4 {
                font-size: 16px;
            }

            .cta-card h2 {
                font-size: 24px;
            }

            .faq-question {
                font-size: 15px;
                padding: 14px 16px;
            }
        }

/* roulang page: category5 */
:root {
            --primary-dark: #1E2A38;
            --primary-blue: #3AA5D6;
            --primary-orange: #FF6B35;
            --white: #FFFFFF;
            --light-bg: #F2F6FA;
            --dark-bg: #2B3A4A;
            --text-main: #333333;
            --text-sub: #666666;
            --text-light: #999999;
            --border-light: #E5E9F0;
            --border-lighter: #EDF0F5;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --nav-height: 68px;
            --section-gap-desktop: 56px;
            --section-gap-tablet: 48px;
            --section-gap-mobile: 40px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--primary-blue);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-orange);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary-blue);
            outline-offset: 2px;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-title);
            color: var(--primary-dark);
            line-height: 1.4;
            font-weight: 700;
        }
        h1 {
            font-size: 40px;
            letter-spacing: 0.5px;
        }
        h2 {
            font-size: 32px;
            letter-spacing: 0.3px;
        }
        h3 {
            font-size: 24px;
        }
        h4 {
            font-size: 20px;
        }
        h5 {
            font-size: 16px;
        }
        p {
            margin-bottom: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            transition: all var(--transition);
            cursor: pointer;
            text-align: center;
            min-height: 44px;
            white-space: nowrap;
        }
        .btn-primary {
            background-color: var(--primary-blue);
            color: var(--white);
            border: none;
        }
        .btn-primary:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: var(--shadow-sm);
        }
        .btn-dark {
            background-color: var(--primary-dark);
            color: var(--white);
            border: none;
        }
        .btn-dark:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-dark:active {
            transform: scale(0.98);
        }
        .btn-outline {
            background-color: transparent;
            color: var(--primary-blue);
            border: 1px solid var(--primary-blue);
        }
        .btn-outline:hover {
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-outline-light {
            background-color: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background-color: rgba(255, 255, 255, 0.12);
            color: var(--white);
            border-color: var(--white);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            min-height: 36px;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 18px;
            min-height: 52px;
            border-radius: var(--radius-md);
        }
        .btn-block {
            width: 100%;
        }
        .btn-link {
            color: var(--primary-blue);
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
            padding: 4px 8px;
            border-radius: 4px;
            transition: all var(--transition);
            display: inline-block;
        }
        .btn-link:hover {
            color: var(--primary-orange);
            text-decoration: none;
            background-color: rgba(58, 165, 214, 0.08);
        }

        /* ========== 导航栏 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background-color: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-lighter);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--primary-dark);
        }
        .nav-logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: var(--primary-dark);
            color: var(--white);
            border-radius: var(--radius-md);
            font-size: 18px;
            font-weight: 700;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            text-decoration: none;
            padding: 4px 0;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--primary-orange);
        }
        .nav-links li a.active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--primary-blue);
            border-radius: 1px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            font-size: 14px;
            color: var(--text-sub);
            cursor: pointer;
            transition: all var(--transition);
            background-color: var(--white);
        }
        .lang-switch:hover {
            border-color: var(--primary-blue);
            color: var(--primary-blue);
        }
        .lang-switch .divider {
            width: 1px;
            height: 14px;
            background-color: var(--border-light);
        }
        .lang-switch .lang-active {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            background-color: var(--primary-blue);
            color: var(--white);
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: var(--primary-orange);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            border: none;
            background: none;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--primary-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            padding-top: calc(var(--nav-height) + 32px);
            padding-bottom: 8px;
            background-color: var(--white);
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--text-sub);
            text-decoration: none;
        }
        .breadcrumb-bar a:hover {
            color: var(--primary-blue);
        }
        .breadcrumb-bar .separator {
            color: var(--border-light);
        }
        .breadcrumb-bar .current {
            color: var(--primary-blue);
            font-weight: 600;
        }

        /* ========== Hero 区域 ========== */
        .category-hero {
            padding: 24px 0 48px;
            background-color: var(--white);
        }
        .category-hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .category-hero-text .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            font-size: 13px;
            font-weight: 600;
            border-radius: 20px;
            border: 1px solid rgba(58, 165, 214, 0.2);
            margin-bottom: 16px;
        }
        .category-hero-text h1 {
            font-size: 42px;
            margin-bottom: 16px;
        }
        .category-hero-text h1 .highlight {
            color: var(--primary-blue);
        }
        .category-hero-text .hero-desc {
            font-size: 17px;
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .category-hero-text .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .category-hero-text .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .category-hero-text .hero-stat {
            text-align: left;
        }
        .category-hero-text .hero-stat-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            font-family: var(--font-title);
        }
        .category-hero-text .hero-stat-label {
            font-size: 13px;
            color: var(--text-light);
        }
        .category-hero-image {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .category-hero-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }
        .category-hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 42, 56, 0.05) 0%, rgba(58, 165, 214, 0.12) 100%);
            pointer-events: none;
        }
        .category-hero-image .hero-image-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            z-index: 2;
            background-color: rgba(30, 42, 56, 0.85);
            color: var(--white);
            padding: 10px 18px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(8px);
        }

        /* ========== 区块通用 ========== */
        .category-section {
            padding: var(--section-gap-desktop) 0;
        }
        .section-header {
            margin-bottom: 32px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-header h2 {
            font-size: 30px;
            margin-bottom: 8px;
        }
        .section-header .section-sub {
            color: var(--text-sub);
            font-size: 16px;
            max-width: 560px;
            line-height: 1.7;
        }
        .section-header .section-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-blue);
            text-decoration: none;
            white-space: nowrap;
        }
        .section-header .section-link:hover {
            color: var(--primary-orange);
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-blue);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .bg-light {
            background-color: var(--light-bg);
        }
        .bg-dark {
            background-color: var(--primary-dark);
        }
        .bg-dark h2,
        .bg-dark h3,
        .bg-dark h4,
        .bg-dark .section-tag,
        .bg-dark .section-sub {
            color: var(--white);
        }
        .bg-dark .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .bg-dark p {
            color: rgba(255, 255, 255, 0.8);
        }

        /* ========== 社区功能卡片 ========== */
        .community-feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .community-feature-card {
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .community-feature-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-4px);
        }
        .community-feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
        }
        .community-feature-card .feature-icon.orange {
            background-color: rgba(255, 107, 53, 0.1);
            color: var(--primary-orange);
        }
        .community-feature-card .feature-icon.dark {
            background-color: rgba(30, 42, 56, 0.08);
            color: var(--primary-dark);
        }
        .community-feature-card h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }
        .community-feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .community-feature-card .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-blue);
            margin-top: 12px;
            text-decoration: none;
        }
        .community-feature-card .feature-link:hover {
            color: var(--primary-orange);
        }

        /* ========== 热门圈子 ========== */
        .circle-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .circle-card {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .circle-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .circle-card-image {
            position: relative;
            height: 160px;
            overflow: hidden;
        }
        .circle-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .circle-card-image .circle-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(30, 42, 56, 0.8);
            color: var(--white);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }
        .circle-card-body {
            padding: 18px 20px;
        }
        .circle-card-body h3 {
            font-size: 17px;
            margin-bottom: 6px;
        }
        .circle-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .circle-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
        }
        .circle-card-meta .member-count {
            color: var(--primary-blue);
            font-weight: 600;
        }
        .circle-card-meta .post-count {
            color: var(--text-light);
        }

        /* ========== 社区活动 ========== */
        .activity-timeline {
            position: relative;
            padding-left: 32px;
        }
        .activity-timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background-color: var(--border-light);
            border-radius: 1px;
        }
        .activity-item {
            position: relative;
            margin-bottom: 28px;
            padding: 20px 24px;
            background-color: var(--white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }
        .activity-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-blue);
        }
        .activity-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 28px;
            width: 10px;
            height: 10px;
            background-color: var(--primary-blue);
            border-radius: 50%;
            border: 2px solid var(--white);
            box-shadow: 0 0 0 2px var(--primary-blue);
        }
        .activity-item .activity-date {
            font-size: 13px;
            color: var(--primary-orange);
            font-weight: 600;
            margin-bottom: 4px;
        }
        .activity-item h3 {
            font-size: 18px;
            margin-bottom: 6px;
        }
        .activity-item p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .activity-item .activity-tag {
            display: inline-block;
            padding: 2px 10px;
            background-color: rgba(58, 165, 214, 0.1);
            color: var(--primary-blue);
            font-size: 12px;
            font-weight: 600;
            border-radius: 12px;
            margin-top: 8px;
        }

        /* ========== 社区达人 ========== */
        .expert-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .expert-card {
            background-color: var(--white);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
        }
        .expert-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary-blue);
            transform: translateY(-3px);
        }
        .expert-avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background-color: var(--light-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-blue);
            margin: 0 auto 12px;
            border: 2px solid rgba(58, 165, 214, 0.3);
        }
        .expert-card h4 {
            font-size: 16px;
            margin-bottom: 4px;
        }
        .expert-card .expert-title {
            font-size: 13px;
            color: var(--primary-blue);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .expert-card p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .expert-card .expert-followers {
            font-size: 12px;
            color: var(--text-light);
        }

        /* ========== 深度内容区 ========== */
        .deep-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .deep-content-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .deep-content-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .deep-content-text h2 {
            font-size: 26px;
            margin-bottom: 16px;
        }
        .deep-content-text p {
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 12px;
            font-size: 15px;
        }
        .deep-content-text ul {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }
        .deep-content-text ul li {
            padding: 8px 0;
            padding-left: 24px;
            position: relative;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        .deep-content-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            width: 8px;
            height: 8px;
            background-color: var(--primary-blue);
            border-radius: 50%;
        }

        /* ========== 数据统计区 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 44px;
            font-weight: 700;
            color: var(--primary-blue);
            font-family: var(--font-title);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }
        .stat-item .stat-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 2px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            background-color: var(--white);
            transition: all var(--transition);
        }
        .faq-item.open {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-blue);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            padding: 16px 20px;
            background-color: var(--light-bg);
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            text-align: left;
            border: none;
            transition: all var(--transition);
        }
        .faq-question:hover {
            background-color: rgba(58, 165, 214, 0.12);
        }
        .faq-question .faq-icon {
            font-size: 22px;
            font-weight: 300;
            color: var(--primary-blue);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 12px;
            line-height: 1;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background-color: var(--white);
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
        }
        .faq-answer-inner {
            padding: 16px 20px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            border-top: 1px solid var(--border-lighter);
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: var(--section-gap-desktop) 0;
            background: linear-gradient(135deg, var(--primary-dark) 0%, #2B3A4A 100%);
        }
        .cta-section .container {
            text-align: center;
            max-width: 700px;
        }
        .cta-section h2 {
            color: var(--white);
            font-size: 32px;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 17px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .cta-section .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            background-color: var(--primary-orange);
        }
        .cta-section .btn-primary:hover {
            background-color: var(--primary-blue);
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 28px auto 0;
        }
        .subscribe-form input {
            flex: 1;
            height: 44px;
            padding: 8px 16px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-md);
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--white);
            font-size: 15px;
            transition: all var(--transition);
        }
        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .subscribe-form input:focus {
            border-color: var(--primary-blue);
            outline: none;
            background-color: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 3px rgba(58, 165, 214, 0.25);
        }
        .subscribe-form button {
            height: 44px;
            padding: 0 24px;
            background-color: var(--primary-orange);
            color: var(--white);
            border: none;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            background-color: var(--primary-blue);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 32px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand h4 {
            color: var(--white);
            font-size: 20px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            text-decoration: none;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background-color: var(--primary-blue);
            color: var(--white);
        }
        .footer-col h5 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-orange);
        }
        .footer-subscribe p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .footer-subscribe-form {
            display: flex;
            gap: 8px;
        }
        .footer-subscribe-form input {
            flex: 1;
            height: 40px;
            padding: 8px 14px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-sm);
            background-color: rgba(255, 255, 255, 0.08);
            color: var(--white);
            font-size: 14px;
            transition: all var(--transition);
        }
        .footer-subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-subscribe-form input:focus {
            border-color: var(--primary-blue);
            outline: none;
            box-shadow: 0 0 0 3px rgba(58, 165, 214, 0.2);
        }
        .footer-subscribe-form button {
            height: 40px;
            padding: 0 18px;
            background-color: var(--primary-blue);
            color: var(--white);
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .footer-subscribe-form button:hover {
            background-color: var(--primary-orange);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 20px;
            padding-top: 24px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 2px;
            line-height: 1.6;
        }
        .footer-links-bottom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
        }
        .footer-links-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-links-bottom a:hover {
            color: var(--primary-orange);
        }
        .footer-links-bottom span {
            color: rgba(255, 255, 255, 0.3);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .community-feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .expert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .category-hero-image img {
                height: 280px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .deep-content {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-content-image img {
                height: 240px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
                --section-gap-desktop: 48px;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background-color: var(--white);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                display: block;
                padding: 12px 0;
                font-size: 16px;
                border-bottom: 1px solid var(--border-lighter);
            }
            .nav-links li a.active::after {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .nav-actions .lang-switch {
                display: none;
            }
            .nav-links .nav-cta-mobile {
                display: inline-flex;
                margin-top: 12px;
                width: 100%;
                justify-content: center;
            }
            .circle-grid {
                grid-template-columns: 1fr;
            }
            .community-feature-grid {
                grid-template-columns: 1fr;
            }
            .expert-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: 32px;
            }
            .category-hero-text h1 {
                font-size: 30px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .breadcrumb-bar {
                padding-top: calc(var(--nav-height) + 20px);
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                width: 100%;
            }
            .subscribe-form button {
                width: 100%;
            }
        }
        @media (max-width: 576px) {
            :root {
                --nav-height: 56px;
                --section-gap-desktop: 36px;
            }
            .container {
                padding: 0 16px;
            }
            .category-hero-text h1 {
                font-size: 26px;
            }
            .category-hero-text .hero-desc {
                font-size: 15px;
            }
            .category-hero-image img {
                height: 200px;
            }
            .expert-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .activity-timeline {
                padding-left: 20px;
            }
            .activity-item {
                padding: 16px;
            }
            .activity-item::before {
                left: -18px;
                width: 8px;
                height: 8px;
                top: 24px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 12px 16px;
                font-size: 14px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .btn {
                font-size: 14px;
                padding: 10px 18px;
            }
            .btn-lg {
                font-size: 16px;
                padding: 12px 24px;
                min-height: 48px;
            }
        }

/* roulang page: category6 */
:root {
      --primary-dark: #1E2A38;
      --primary-blue: #3AA5D6;
      --primary-orange: #FF6B35;
      --white: #FFFFFF;
      --light-bg: #F2F6FA;
      --dark-bg: #2B3A4A;
      --text-main: #333333;
      --text-sub: #666666;
      --text-light: #999999;
      --border-light: #E5E9F0;
      --border-lighter: #EDF0F5;
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --radius-xl: 16px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
      --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', sans-serif;
      --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      --transition: 0.2s ease;
      --max-width: 1200px;
      --nav-height: 68px;
      --section-gap-desktop: 72px;
      --section-gap-tablet: 64px;
      --section-gap-mobile: 48px;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      font-family: var(--font-body);
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-main);
      background-color: var(--white);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; border: 0; }
    a { color: var(--primary-blue); text-decoration: none; transition: color var(--transition); }
    a:hover { color: var(--primary-orange); }
    button, input { font-family: inherit; font-size: inherit; border: none; background: none; cursor: pointer; }
    button:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--primary-blue); outline-offset: 2px; }
    .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
    /* 按钮 */
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      padding: 12px 24px; border-radius: var(--radius-md); font-size: 16px; font-weight: 600;
      line-height: 1.5; transition: all var(--transition); cursor: pointer; text-align: center;
      min-height: 44px; white-space: nowrap;
    }
    .btn-primary { background-color: var(--primary-blue); color: var(--white); border: none; }
    .btn-primary:hover { background-color: var(--primary-orange); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow-md); }
    .btn-primary:active { transform: scale(0.98); box-shadow: var(--shadow-sm); }
    .btn-dark { background-color: var(--primary-dark); color: var(--white); border: none; }
    .btn-dark:hover { background-color: var(--primary-orange); color: var(--white); transform: translateY(-1px); box-shadow: var(--shadow-md); }
    .btn-dark:active { transform: scale(0.98); }
    .btn-outline { background-color: transparent; color: var(--primary-blue); border: 1px solid var(--primary-blue); }
    .btn-outline:hover { background-color: rgba(58, 165, 214, 0.1); color: var(--primary-blue); transform: translateY(-1px); }
    .btn-outline:active { transform: scale(0.98); }
    .btn-outline-light { background-color: transparent; color: var(--white); border: 1px solid rgba(255, 255, 255, 0.5); }
    .btn-outline-light:hover { background-color: rgba(255, 255, 255, 0.12); color: var(--white); border-color: var(--white); }
    .btn-sm { padding: 8px 16px; font-size: 14px; min-height: 36px; border-radius: var(--radius-sm); }
    .btn-lg { padding: 14px 32px; font-size: 18px; min-height: 52px; border-radius: var(--radius-md); }
    .btn-block { width: 100%; }
    .btn-link { color: var(--primary-blue); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; padding: 4px 8px; border-radius: 4px; transition: all var(--transition); }
    .btn-link:hover { color: var(--primary-orange); text-decoration: none; background-color: rgba(58, 165, 214, 0.08); }
    /* 导航 */
    .site-header {
      position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--nav-height);
      background-color: rgba(255, 255, 255, 0.94); backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      display: flex; align-items: center;
    }
    .site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 16px; }
    .nav-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--primary-dark); font-family: var(--font-title); white-space: nowrap; }
    .nav-logo:hover { color: var(--primary-dark); }
    .nav-logo-icon {
      width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
      display: flex; align-items: center; justify-content: center; color: var(--white); font-size: 20px; font-weight: 700;
    }
    .nav-links { display: flex; align-items: center; gap: 24px; list-style: none; }
    .nav-links a {
      font-size: 15px; font-weight: 500; color: var(--text-sub); padding: 6px 2px; position: relative;
      transition: color var(--transition); white-space: nowrap;
    }
    .nav-links a:hover, .nav-links a.active { color: var(--primary-blue); }
    .nav-links a.active::after {
      content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
      background-color: var(--primary-blue); border-radius: 2px;
    }
    .nav-actions { display: flex; align-items: center; gap: 12px; }
    .lang-switch {
      display: flex; align-items: center; gap: 6px; padding: 4px 10px; border: 1px solid var(--border-light);
      border-radius: 20px; font-size: 13px; color: var(--text-sub); transition: all var(--transition); white-space: nowrap;
    }
    .lang-switch:hover { border-color: var(--primary-blue); color: var(--primary-blue); }
    .lang-switch .divider { width: 1px; height: 14px; background-color: var(--border-light); }
    .lang-switch .lang-active { color: var(--primary-blue); font-weight: 700; }
    .nav-cta { padding: 8px 20px; border-radius: var(--radius-md); background-color: var(--primary-blue); color: #fff; font-weight: 600; text-align: center; }
    .nav-cta:hover { background-color: var(--primary-orange); color: #fff; }
    .nav-toggle { display: none; flex-direction: column; gap: 5px; width: 32px; height: 32px; align-items: center; justify-content: center; }
    .nav-toggle span { width: 22px; height: 2px; background-color: var(--primary-dark); border-radius: 2px; transition: all 0.2s; }
    .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    /* 面包屑 */
    .breadcrumb-wrap { background-color: var(--light-bg); border-bottom: 1px solid var(--border-light); padding: 120px 0 16px; }
    .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-sub); list-style: none; }
    .breadcrumb a { color: var(--text-sub); }
    .breadcrumb a:hover { color: var(--primary-blue); }
    .breadcrumb .sep { color: #C0C8D6; }
    .breadcrumb .current { color: var(--primary-blue); font-weight: 600; }
    /* Hero优惠券墙 */
    .coupon-hero { position: relative; padding: 40px 0 60px; background: linear-gradient(145deg, #0F1A24 0%, #1E2A38 55%, #24384C 100%); overflow: hidden; }
    .coupon-hero::before {
      content: ""; position: absolute; top: -40%; right: -10%; width: 60%; height: 120%;
      background: radial-gradient(circle, rgba(58,165,214,0.25), transparent 65%);
    }
    .coupon-hero-content { position: relative; z-index: 2; }
    .coupon-hero-header { max-width: 720px; margin-bottom: 28px; }
    .coupon-hero-header h1 { font-size: 44px; font-weight: 700; line-height: 1.3; color: var(--white); font-family: var(--font-title); margin-bottom: 16px; }
    .coupon-hero-header p { font-size: 18px; color: rgba(255,255,255,0.88); line-height: 1.8; }
    .coupon-grid { display: grid; grid-template-columns: 1fr 1.4fr 1fr; gap: 20px; align-items: stretch; }
    .coupon-card {
      background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); border-radius: var(--radius-xl);
      padding: 24px; backdrop-filter: blur(8px); transition: all var(--transition); position: relative;
    }
    .coupon-card:hover { background: rgba(255,255,255,0.14); border-color: rgba(255,255,255,0.3); transform: translateY(-4px); }
    .coupon-card.main-coupon { background: linear-gradient(145deg, #FF6B35, #E85B2A); border-color: #FF8C5A; box-shadow: 0 20px 40px rgba(0,0,0,0.25); transform: scale(1.02); }
    .coupon-card.main-coupon:hover { transform: scale(1.03) translateY(-4px); }
    .coupon-label { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 1px; padding: 4px 12px; border-radius: 20px; background: rgba(255,255,255,0.2); color: #fff; margin-bottom: 12px; }
    .coupon-card h3 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 8px; }
    .coupon-card p { font-size: 14px; color: rgba(255,255,255,0.85); margin-bottom: 16px; }
    .coupon-amount { font-size: 38px; font-weight: 800; color: #fff; line-height: 1.1; margin-bottom: 4px; }
    .coupon-amount small { font-size: 18px; font-weight: 500; }
    .coupon-card .btn { background: rgba(255,255,255,0.22); color: #fff; border: 1px solid rgba(255,255,255,0.4); }
    .coupon-card .btn:hover { background: rgba(255,255,255,0.4); color: #fff; }
    .coupon-card.main-coupon .btn { background: var(--white); color: var(--primary-orange); font-weight: 800; border: none; }
    .coupon-card.main-coupon .btn:hover { background: var(--primary-dark); color: #fff; }
    .hero-trust { display: flex; gap: 28px; margin-top: 28px; flex-wrap: wrap; }
    .trust-item { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.75); font-size: 14px; }
    .trust-item strong { color: #fff; font-size: 20px; }
    /* 通用 Section */
    section { padding: var(--section-gap-desktop) 0; }
    .section-title { text-align: center; max-width: 760px; margin: 0 auto 40px; }
    .section-title h2 { font-size: 34px; font-weight: 700; color: var(--primary-dark); line-height: 1.35; margin-bottom: 12px; font-family: var(--font-title); }
    .section-title p { font-size: 16px; color: var(--text-sub); line-height: 1.8; }
    .section-alt { background-color: var(--light-bg); }
    .section-dark { background-color: var(--primary-dark); color: #fff; }
    .section-dark h2 { color: #fff; }
    .section-dark .section-title p { color: rgba(255,255,255,0.75); }
    /* 权益卡片 */
    .benefit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .benefit-card { background: var(--white); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 28px 24px; transition: all var(--transition); box-shadow: var(--shadow-sm); }
    .benefit-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-blue); }
    .benefit-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(58,165,214,0.12); color: var(--primary-blue); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 16px; }
    .benefit-card h3 { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
    .benefit-card p { font-size: 15px; color: var(--text-sub); line-height: 1.7; }
    /* 价格表 */
    .price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; align-items: stretch; }
    .price-card { background: var(--white); border: 1px solid var(--border-light); border-radius: var(--radius-lg); padding: 28px 20px; text-align: center; transition: all var(--transition); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
    .price-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .price-card.featured { border-color: var(--primary-blue); box-shadow: var(--shadow-md); position: relative; }
    .price-card.featured::before { content: "推荐"; position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--primary-blue); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 16px; border-radius: 20px; }
    .price-name { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
    .price-amount { font-size: 40px; font-weight: 800; color: var(--primary-dark); margin-bottom: 4px; }
    .price-amount span { font-size: 16px; font-weight: 500; color: var(--text-sub); }
    .price-cycle { font-size: 13px; color: var(--text-light); margin-bottom: 20px; }
    .price-features { list-style: none; text-align: left; margin-bottom: 24px; flex: 1; }
    .price-features li { font-size: 14px; color: var(--text-sub); padding: 6px 0; border-bottom: 1px solid var(--border-lighter); display: flex; align-items: center; gap: 8px; }
    .price-features li::before { content: "✓"; color: var(--primary-blue); font-weight: 700; }
    .price-card.featured .btn-primary { background-color: var(--primary-dark); }
    .price-card.featured .btn-primary:hover { background-color: var(--primary-orange); }
    /* 场景卡片 */
    .scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
    .scene-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-light); transition: all var(--transition); box-shadow: var(--shadow-sm); }
    .scene-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .scene-img { height: 200px; background-color: #E9EEF5; }
    .scene-img img { width: 100%; height: 100%; object-fit: cover; }
    .scene-body { padding: 20px 24px 24px; }
    .scene-body h3 { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin-bottom: 8px; }
    .scene-body p { font-size: 15px; color: var(--text-sub); line-height: 1.7; }
    /* 流程步骤 */
    .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .step-card { text-align: center; padding: 24px 16px; background: var(--white); border-radius: var(--radius-lg); border: 1px solid var(--border-light); transition: all var(--transition); }
    .step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .step-num { width: 52px; height: 52px; border-radius: 50%; background: var(--primary-blue); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700; margin: 0 auto 16px; }
    .step-card h3 { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
    .step-card p { font-size: 14px; color: var(--text-sub); }
    /* 深度文本 */
    .deep-text { max-width: 860px; margin: 0 auto; background: var(--white); border-left: 4px solid var(--primary-blue); padding: 32px 36px; border-radius: 0 var(--radius-lg) var(--radius-lg) 0; box-shadow: var(--shadow-sm); }
    .deep-text h2 { font-size: 26px; font-weight: 700; color: var(--primary-dark); margin-bottom: 16px; }
    .deep-text h3 { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin: 24px 0 12px; }
    .deep-text p { font-size: 16px; color: var(--text-main); line-height: 1.9; margin-bottom: 12px; }
    .deep-text ul, .deep-text ol { margin-left: 24px; margin-bottom: 12px; }
    .deep-text li { font-size: 16px; color: var(--text-main); line-height: 1.8; }
    /* 评价 */
    .testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .testimonial-card { background: var(--white); border-radius: var(--radius-lg); padding: 24px; border: 1px solid var(--border-light); box-shadow: var(--shadow-sm); transition: all var(--transition); }
    .testimonial-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
    .testimonial-text { font-size: 15px; color: var(--text-main); line-height: 1.8; margin-bottom: 16px; }
    .testimonial-user { display: flex; align-items: center; gap: 12px; }
    .testimonial-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--light-bg); display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--primary-blue); }
    .testimonial-name { font-weight: 700; color: var(--primary-dark); font-size: 15px; }
    .testimonial-role { font-size: 13px; color: var(--text-light); }
    /* FAQ */
    .faq-list { max-width: 820px; margin: 0 auto; }
    .faq-item { border: 1px solid var(--border-light); border-radius: var(--radius-lg); margin-bottom: 12px; overflow: hidden; background: var(--white); transition: all var(--transition); }
    .faq-question { width: 100%; text-align: left; padding: 16px 20px; background: var(--light-bg); font-size: 16px; font-weight: 700; color: var(--primary-dark); display: flex; justify-content: space-between; align-items: center; gap: 12px; transition: all var(--transition); }
    .faq-question:hover { background: rgba(58,165,214,0.08); }
    .faq-icon { font-size: 24px; line-height: 1; color: var(--primary-blue); transition: transform var(--transition); }
    .faq-item[open] .faq-icon { transform: rotate(45deg); }
    .faq-answer { padding: 20px; font-size: 15px; color: var(--text-sub); line-height: 1.8; border-top: 1px solid var(--border-light); background: var(--white); }
    /* CTA */
    .cta-section { background: linear-gradient(135deg, #1E2A38, #0F1A24); color: #fff; padding: 80px 0; text-align: center; }
    .cta-section h2 { font-size: 36px; font-weight: 700; margin-bottom: 12px; }
    .cta-section p { font-size: 18px; color: rgba(255,255,255,0.8); margin-bottom: 28px; }
    .cta-form { display: flex; max-width: 520px; margin: 0 auto 20px; gap: 12px; }
    .cta-form input { flex: 1; height: 48px; border: 1px solid rgba(255,255,255,0.3); border-radius: var(--radius-md); padding: 8px 16px; background: rgba(255,255,255,0.08); color: #fff; }
    .cta-form input::placeholder { color: rgba(255,255,255,0.5); }
    .cta-form input:focus { border-color: var(--primary-blue); box-shadow: 0 0 0 3px rgba(58,165,214,0.3); outline: none; }
    /* 页脚 */
    .site-footer { background-color: var(--primary-dark); color: rgba(255,255,255,0.8); padding: 60px 0 24px; }
    .footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand h4 { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 12px; }
    .footer-brand p { font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
    .footer-social { display: flex; gap: 10px; }
    .footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.1); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; transition: all var(--transition); }
    .footer-social a:hover { background: var(--primary-blue); color: #fff; }
    .footer-col h5 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; }
    .footer-col ul { list-style: none; }
    .footer-col li { margin-bottom: 10px; }
    .footer-col a { color: rgba(255,255,255,0.7); font-size: 14px; transition: color var(--transition); }
    .footer-col a:hover { color: var(--primary-blue); }
    .footer-subscribe p { font-size: 14px; margin-bottom: 16px; }
    .footer-subscribe-form { display: flex; gap: 8px; }
    .footer-subscribe-form input { flex: 1; height: 44px; border: 1px solid rgba(255,255,255,0.3); border-radius: var(--radius-sm); padding: 8px 12px; background: rgba(255,255,255,0.08); color: #fff; }
    .footer-subscribe-form input::placeholder { color: rgba(255,255,255,0.5); }
    .footer-subscribe-form button { height: 44px; padding: 0 18px; background: var(--primary-blue); color: #fff; border-radius: var(--radius-sm); font-weight: 600; }
    .footer-subscribe-form button:hover { background: var(--primary-orange); }
    .footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; font-size: 13px; }
    .footer-bottom a { color: rgba(255,255,255,0.7); }
    .footer-bottom a:hover { color: var(--primary-blue); }
    .footer-links-bottom span { margin: 0 8px; color: rgba(255,255,255,0.3); }
    /* 响应式 */
    @media (max-width: 1024px) {
      .nav-links { gap: 16px; }
      .benefit-grid { grid-template-columns: repeat(2, 1fr); }
      .price-grid { grid-template-columns: repeat(2, 1fr); }
      .steps-grid { grid-template-columns: repeat(2, 1fr); }
      .testimonial-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      :root { --section-gap-desktop: 64px; }
      .site-header .container { flex-wrap: wrap; }
      .nav-links {
        display: none; position: absolute; top: var(--nav-height); left: 0; right: 0;
        background: var(--white); flex-direction: column; align-items: flex-start; gap: 8px;
        padding: 20px 24px; border-bottom: 1px solid var(--border-light); box-shadow: var(--shadow-md);
      }
      .nav-links.open { display: flex; }
      .nav-actions { margin-left: auto; }
      .nav-toggle { display: flex; }
      .nav-cta { display: none; }
      .coupon-grid { grid-template-columns: 1fr; }
      .coupon-card.main-coupon { transform: none; }
      .coupon-hero-header h1 { font-size: 36px; }
      .section-title h2 { font-size: 28px; }
      .benefit-grid { grid-template-columns: 1fr; }
      .scene-grid { grid-template-columns: 1fr; }
      .price-grid { grid-template-columns: 1fr; }
      .steps-grid { grid-template-columns: 1fr; }
      .cta-form { flex-direction: column; }
      .footer-top { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }
    @media (max-width: 520px) {
      :root { --section-gap-desktop: 48px; }
      .container { padding: 0 16px; }
      .coupon-hero-header h1 { font-size: 30px; }
      .btn-lg { font-size: 16px; padding: 12px 20px; }
      .trust-item strong { font-size: 18px; }
    }