/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --accent: #D97706;
            --bg: #F9FAFB;
            --white: #FFFFFF;
            --title: #0F172A;
            --text: #334155;
            --text-secondary: #64748B;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 64, 175, 0.10);
            --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
            --transition: all 0.25s ease;
            --container: 1200px;
            --section-padding: 80px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }

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

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

        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.25);
        }

        .btn-primary:active {
            background: #1E3BB0;
            transform: translateY(0);
        }

        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border-color: var(--border);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(37, 99, 235, 0.05);
            color: var(--primary-dark);
        }

        .btn:focus-visible,
        .nav-toggle:focus-visible,
        .faq-question:focus-visible,
        .text-link:focus-visible {
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
            outline: none;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
        }

        .text-link i {
            font-size: 12px;
            transition: transform 0.25s;
        }

        .text-link:hover {
            color: var(--primary-dark);
        }

        .text-link:hover i {
            transform: translateX(4px);
        }

        /* Header 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 200;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.03);
        }

        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--title);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 800;
        }

        .brand:hover {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 6px;
            position: relative;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.04);
        }

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        /* Mega Menu */
        .mega-trigger {
            position: relative;
        }

        .mega-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }

        .mega-btn:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(37, 99, 235, 0.04);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            padding: 24px;
            display: grid;
            grid-template-columns: 1fr 1fr 1.1fr;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: var(--transition);
            z-index: 300;
        }

        .mega-trigger:hover .mega-panel,
        .mega-trigger:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .mega-col a {
            display: block;
            padding: 8px 10px;
            border-radius: 6px;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 2px;
        }

        .mega-col a:hover {
            background: rgba(37, 99, 235, 0.05);
            color: var(--primary);
        }

        .mega-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 16px;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .mega-card img {
            border-radius: 8px;
            object-fit: cover;
            width: 100%;
            height: 90px;
        }

        .mega-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* 移动导航 */
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--title);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--white);
            box-shadow: var(--shadow-lg);
            z-index: 500;
            padding: 24px 20px;
            transition: right 0.3s ease;
            overflow-y: auto;
        }

        .mobile-menu.open {
            right: 0;
        }

        .menu-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 450;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .menu-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }

        .mobile-menu-head span {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
        }

        .mobile-close {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--bg);
            font-size: 18px;
            color: var(--text-secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .mobile-close:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.06);
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-bottom: 20px;
        }

        .mobile-nav a {
            display: block;
            padding: 12px 14px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: rgba(37, 99, 235, 0.05);
            color: var(--primary);
        }

        .mobile-hot {
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .mobile-hot-toggle {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            background: var(--bg);
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-hot-toggle i {
            font-size: 12px;
            transition: transform 0.25s;
        }

        .mobile-hot-toggle.open i {
            transform: rotate(180deg);
        }

        .mobile-hot-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .mobile-hot-panel.open {
            max-height: 500px;
        }

        .mobile-hot-panel a {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 6px;
        }

        .mobile-hot-panel a:hover {
            background: rgba(37, 99, 235, 0.04);
            color: var(--primary);
        }

        /* Hero */
        .hero {
            background: linear-gradient(180deg, #FFFFFF 0%, #F0F7FF 100%);
            padding: 72px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.06;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .hero-content {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            border-radius: 20px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--title);
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

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

        .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }

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

        .hero-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .metric-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .metric-value {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -0.5px;
        }

        .metric-value.accent {
            color: var(--accent);
        }

        .metric-unit {
            font-size: 20px;
            font-weight: 600;
            margin-left: 2px;
        }

        .metric-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* 品牌亮点条 */
        .highlights {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 28px 0;
        }

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

        .highlight-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .highlight-icon {
            width: 46px;
            height: 46px;
            border-radius: 10px;
            background: rgba(37, 99, 235, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .highlight-text strong {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 2px;
        }

        .highlight-text span {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* 服务矩阵 */
        .service-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .service-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.25);
            transform: translateY(-3px);
        }

        .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: rgba(37, 99, 235, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 6px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--title);
        }

        .service-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .service-card .text-link {
            margin-top: 6px;
        }

        /* 结果对比 */
        .compare-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .compare-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 32px;
            align-items: center;
        }

        .compare-col {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px;
        }

        .compare-col.good {
            background: rgba(37, 99, 235, 0.04);
            border-color: rgba(37, 99, 235, 0.2);
        }

        .compare-col h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--title);
        }

        .compare-col h3 i {
            font-size: 16px;
        }

        .compare-col.bad h3 i {
            color: var(--text-muted);
        }

        .compare-col.good h3 i {
            color: var(--primary);
        }

        .compare-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }

        .compare-list li i {
            margin-top: 4px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .compare-col.good .compare-list li i {
            color: var(--primary);
        }

        .compare-arrow {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.2);
        }

        .compare-more {
            margin-top: 20px;
            display: inline-flex;
        }

        /* 功能导览 */
        .tour-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .tour-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }

        .tour-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .tour-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

        .tour-body {
            padding: 24px;
        }

        .tour-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 8px;
        }

        .tour-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .tour-body .tour-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .tour-body .tour-link i {
            font-size: 12px;
        }

        .tour-body .tour-link:hover {
            color: var(--primary-dark);
        }

        /* 最新资讯 CMS */
        .news-section {
            background: var(--bg);
        }

        .cms-article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .cms-article-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            transition: var(--transition);
        }

        .cms-article-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.2);
            transform: translateY(-2px);
        }

        .cms-article-item:hover h4 {
            color: var(--primary);
        }

        .article-date-block {
            flex-shrink: 0;
            width: 72px;
            text-align: center;
            border-right: 1px solid var(--border);
            padding-right: 20px;
        }

        .article-date-block .month {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            text-transform: uppercase;
        }

        .article-date-block .day {
            display: block;
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .article-info {
            flex: 1;
            min-width: 0;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 6px;
        }

        .badge {
            display: inline-block;
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: 6px;
        }

        .article-info h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 4px;
            line-height: 1.5;
            transition: var(--transition);
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .article-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .article-link {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
        }

        .cms-article-item:hover .article-link {
            background: var(--primary);
            color: #fff;
            transform: translateX(3px);
        }

        /* 资讯空态 */
        .news-empty {
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 60px 20px;
            text-align: center;
            color: var(--text-muted);
        }

        .news-empty i {
            font-size: 36px;
            margin-bottom: 14px;
            display: block;
            color: var(--text-muted);
        }

        .news-empty p {
            font-size: 15px;
        }

        /* FAQ */
        .faq-section {
            background: var(--white);
            border-top: 1px solid var(--border);
        }

        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item.open {
            border-color: rgba(37, 99, 235, 0.3);
            background: rgba(37, 99, 235, 0.02);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 600px;
        }

        /* 转化表单 */
        .contact-section {
            background: var(--bg);
        }

        .contact-wrap {
            max-width: 680px;
            margin: 0 auto;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px;
        }

        .contact-head {
            text-align: center;
            margin-bottom: 32px;
        }

        .contact-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
        }

        .contact-head p {
            font-size: 15px;
            color: var(--text-secondary);
        }

        .contact-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
        }

        .form-group label .required {
            color: #E11D48;
            margin-left: 2px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            font-size: 15px;
            color: var(--text);
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
            background: #fff;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }

        .form-group select {
            cursor: pointer;
            appearance: auto;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 40px;
        }

        .submit-btn {
            width: 100%;
            margin-top: 8px;
            position: relative;
        }

        .submit-btn.loading {
            pointer-events: none;
            opacity: 0.85;
        }

        .submit-btn.success {
            background: #10B981;
            border-color: #10B981;
        }

        /* Footer */
        .site-footer {
            background: #F8FAFC;
            border-top: 1px solid var(--border);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .footer-col ul a:hover {
            color: var(--primary);
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .footer-contact li i {
            margin-top: 3px;
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }

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

        /* 响应式 */
        @media (max-width: 1023px) {
            :root {
                --section-padding: 60px;
            }

            .main-nav {
                display: none;
            }

            .mega-trigger {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

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

            .hero-content {
                max-width: 100%;
            }

            .hero-metrics {
                grid-template-columns: 1fr 1fr;
            }

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

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

            .tour-card:last-child {
                grid-column: 1 / -1;
            }

            .tour-card:last-child img {
                height: 160px;
            }

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

            .compare-arrow {
                transform: rotate(90deg);
                margin: 0 auto;
            }

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

            .cms-article-item {
                padding: 16px;
                gap: 16px;
            }

            .article-date-block {
                width: 60px;
                padding-right: 14px;
            }

            .article-date-block .day {
                font-size: 26px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-padding: 48px;
            }

            .container {
                padding: 0 16px;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 22px;
            }

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

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

            .hero-sub {
                font-size: 16px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

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

            .metric-card {
                padding: 18px 14px;
            }

            .metric-value {
                font-size: 32px;
            }

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

            .service-card {
                padding: 24px 20px;
            }

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

            .tour-card:last-child {
                grid-column: auto;
            }

            .compare-col {
                padding: 24px 18px;
            }

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

            .contact-wrap {
                padding: 24px 18px;
            }

            .cms-article-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 18px;
            }

            .article-date-block {
                border-right: none;
                border-bottom: 1px solid var(--border);
                padding-right: 0;
                padding-bottom: 10px;
                width: 100%;
                display: flex;
                align-items: baseline;
                gap: 8px;
                text-align: left;
            }

            .article-date-block .month {
                font-size: 13px;
            }

            .article-date-block .day {
                font-size: 24px;
            }

            .article-link {
                display: none;
            }

            .form-group input,
            .form-group select,
            .form-group textarea {
                font-size: 16px;
            }

            .mega-panel {
                display: none;
            }
        }

        @media (max-width: 575px) {
            .highlights-grid {
                grid-template-columns: 1fr;
            }

            .highlight-item {
                padding: 8px 0;
            }

            .hero-metrics {
                grid-template-columns: 1fr 1fr;
            }

            .metric-value {
                font-size: 28px;
            }

            .hero h1 {
                font-size: 24px;
            }

            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --accent: #D97706;
            --bg: #F9FAFB;
            --bg-light: #F0F7FF;
            --card-bg: #FFFFFF;
            --text-title: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-weak: #94A3B8;
            --border: #E2E8F0;
            --success: #10B981;
            --warning: #F59E0B;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 64, 175, 0.10);
            --shadow-panel: 0 12px 40px rgba(15, 23, 42, 0.12);
            --container: 1200px;
            --space-section: 80px;
            --space-mobile: 48px;
            --font-stack: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-body);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease, box-shadow 0.2s ease;
        }

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

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

        input,
        select,
        textarea {
            font-family: inherit;
        }

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

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
        }

        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

        .brand:hover {
            color: var(--text-title);
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 800;
            letter-spacing: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.25s ease;
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.04);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .mega-trigger {
            position: relative;
        }

        .mega-btn {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all 0.25s ease;
        }

        .mega-btn:hover {
            background: var(--bg-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .mega-btn i {
            font-size: 13px;
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 560px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-panel);
            border: 1px solid var(--border);
            padding: 24px;
            display: grid;
            grid-template-columns: 1fr 1fr 1.2fr;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.3s ease;
            z-index: 100;
        }

        .mega-trigger:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-col h4 {
            font-size: 13px;
            color: var(--text-weak);
            font-weight: 600;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .mega-col a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-body);
            transition: color 0.2s;
        }

        .mega-col a:hover {
            color: var(--primary);
        }

        .mega-card {
            background: var(--bg);
            border-radius: 10px;
            padding: 14px;
            border: 1px solid var(--border);
        }

        .mega-card img {
            border-radius: 8px;
            margin-bottom: 10px;
            height: 80px;
            object-fit: cover;
            width: 100%;
        }

        .mega-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .text-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s;
        }

        .text-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-body);
            transition: all 0.2s;
        }

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

        /* Mobile drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: #fff;
            z-index: 2000;
            box-shadow: var(--shadow-panel);
            padding: 24px;
            transition: right 0.3s ease;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 23, 42, 0.5);
            z-index: 1999;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }

        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        .drawer-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 16px;
            transition: all 0.2s;
        }

        .drawer-close:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .mobile-drawer a {
            padding: 12px 14px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            transition: all 0.2s;
        }

        .mobile-drawer a:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.06);
            font-weight: 600;
        }

        .mobile-drawer .drawer-label {
            font-size: 13px;
            color: var(--text-weak);
            font-weight: 600;
            margin-top: 16px;
            margin-bottom: 8px;
            padding: 0 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            max-width: var(--container);
            margin: 0 auto;
            padding: 20px 24px 0;
            font-size: 13px;
            color: var(--text-weak);
        }

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

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

        .breadcrumb .sep {
            margin: 0 6px;
            color: var(--text-weak);
        }

        .breadcrumb .current {
            color: var(--text-body);
            font-weight: 500;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(180deg, #FFFFFF 0%, var(--bg-light) 100%);
            padding: 64px 0 56px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.05);
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .page-hero-content h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .page-hero-content h1 .accent-text {
            color: var(--primary);
        }

        .page-hero-content .hero-desc {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 560px;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 20px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            border: 1px solid rgba(37, 99, 235, 0.15);
        }

        .hero-tag i {
            font-size: 11px;
        }

        .page-hero .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual-inner {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-hover);
            overflow: hidden;
            width: 100%;
            max-width: 420px;
        }

        .hero-visual-inner img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .hero-visual-caption {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-visual-caption i {
            color: var(--primary);
        }

        /* ===== Section common ===== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            margin-bottom: 40px;
            max-width: 720px;
        }

        .section-header .section-overline {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .section-header .section-overline::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Horizontal Service List (Category 1 style) ===== */
        .service-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .service-item {
            display: grid;
            grid-template-columns: 120px 1fr;
            gap: 28px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            align-items: center;
        }

        .service-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(37, 99, 235, 0.3);
        }

        .service-item .service-icon {
            width: 100px;
            height: 100px;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
        }

        .service-item .service-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .service-item .service-icon i {
            font-size: 32px;
            color: var(--primary);
        }

        .service-item .service-body {
            flex: 1;
        }

        .service-item .service-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .service-item .service-body p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 12px;
        }

        .service-item .service-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-item .service-meta .badge {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 6px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            border: 1px solid rgba(37, 99, 235, 0.12);
        }

        .service-item .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all 0.2s;
        }

        .service-item .service-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* ===== Process Steps ===== */
        .process-section {
            background: var(--bg);
            padding: var(--space-section) 0;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .process-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            position: relative;
            transition: all 0.3s ease;
        }

        .process-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .process-card .step-num {
            font-size: 40px;
            font-weight: 800;
            color: rgba(37, 99, 235, 0.12);
            position: absolute;
            top: 12px;
            right: 18px;
            line-height: 1;
        }

        .process-card .step-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .process-card .step-icon i {
            font-size: 26px;
            color: var(--primary);
        }

        .process-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .process-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
            border-radius: 20px;
            padding: 48px;
            margin: var(--space-section) 0;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-banner .cta-content {
            position: relative;
            z-index: 1;
            flex: 1;
        }

        .cta-banner h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-banner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 480px;
        }

        .cta-banner .cta-buttons {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: #fff;
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: none;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
            transition: all 0.25s ease;
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.5);
            transition: all 0.25s ease;
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            padding: var(--space-section) 0;
            border-top: 1px solid var(--border);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s ease;
            background: #fff;
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
        }

        .faq-item.active {
            border-color: var(--primary);
            background: rgba(37, 99, 235, 0.02);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: all 0.2s;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #F8FAFC;
            border-top: 1px solid var(--border);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            margin-bottom: 12px;
        }

        .footer-brand .brand span:last-child {
            font-size: 18px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s;
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .footer-contact li {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact li i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-weak);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-inner {
                padding: 0 20px;
            }

            .main-nav {
                gap: 2px;
            }

            .nav-link {
                padding: 8px 12px;
                font-size: 14px;
            }

            .mega-btn {
                padding: 8px 10px;
                font-size: 13px;
            }

            .mega-panel {
                width: 500px;
                grid-template-columns: 1fr 1fr;
                right: -80px;
            }

            .mega-card {
                grid-column: span 2;
                display: grid;
                grid-template-columns: 120px 1fr;
                gap: 12px;
                align-items: center;
            }

            .mega-card img {
                height: 70px;
            }

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

            .hero-visual-inner {
                max-width: 100%;
            }

            .hero-visual-inner img {
                height: 200px;
            }

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

            .service-item {
                grid-template-columns: 100px 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--space-mobile) 0;
            }

            .container {
                padding: 0 20px;
            }

            .main-nav {
                display: none;
            }

            .nav-right .mega-trigger {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .page-hero {
                padding: 40px 0 36px;
            }

            .page-hero-content h1 {
                font-size: 28px;
            }

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

            .service-item {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 20px;
            }

            .service-item .service-icon {
                width: 72px;
                height: 72px;
            }

            .service-item .service-icon i {
                font-size: 24px;
            }

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

            .cta-banner {
                flex-direction: column;
                padding: 32px 24px;
                gap: 20px;
                text-align: center;
            }

            .cta-banner .cta-buttons {
                width: 100%;
                justify-content: center;
            }

            .cta-banner h3 {
                font-size: 20px;
            }

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

            .faq-answer-inner {
                padding: 0 16px 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 32px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .breadcrumb {
                padding: 16px 20px 0;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                padding: 0 16px;
                height: 58px;
            }

            .brand {
                font-size: 17px;
            }

            .brand-logo {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }

            .page-hero-content h1 {
                font-size: 24px;
            }

            .hero-tags {
                gap: 6px;
            }

            .hero-tag {
                font-size: 12px;
                padding: 5px 10px;
            }

            .cta-banner {
                padding: 28px 20px;
                border-radius: 14px;
            }

            .cta-banner .cta-buttons {
                flex-direction: column;
                width: 100%;
            }

            .cta-banner .btn-primary,
            .cta-banner .btn-outline-light {
                width: 100%;
                justify-content: center;
            }

            .process-card {
                padding: 20px;
            }
        }

        @media (max-width: 480px) {
            .service-item .service-item {
                padding: 16px;
            }

            .section-header {
                margin-bottom: 24px;
            }

            .page-hero .container {
                padding: 0 16px;
            }
        }

/* roulang page: article */
:root {
        --primary: #2563EB;
        --primary-dark: #1D4ED8;
        --accent: #D97706;
        --bg: #F9FAFB;
        --card: #FFFFFF;
        --text-heading: #0F172A;
        --text-body: #334155;
        --text-muted: #64748B;
        --text-weak: #94A3B8;
        --border: #E2E8F0;
        --shadow-sm: 0 1px 3px rgba(15,23,42,0.06);
        --shadow-hover: 0 8px 24px rgba(30,64,175,0.10);
        --shadow-lg: 0 12px 40px rgba(15,23,42,0.12);
        --radius-lg: 12px;
        --radius-md: 8px;
        --radius-sm: 6px;
        --container: 1200px;
        --font: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font);
        font-size: 16px;
        line-height: 1.6;
        color: var(--text-body);
        background: var(--bg);
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

    img {
        max-width: 100%;
        display: block;
    }

    a {
        color: inherit;
        text-decoration: none;
    }

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

    input,
    select,
    textarea {
        font-family: inherit;
    }

    ul {
        list-style: none;
    }

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

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

    /* ===== Header ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--border);
    }

    .header-inner {
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
        height: 64px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
    }

    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 18px;
        color: var(--text-heading);
        white-space: nowrap;
    }

    .brand-logo {
        width: 36px;
        height: 36px;
        background: var(--primary);
        color: #fff;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 15px;
        font-weight: 800;
        letter-spacing: 0.5px;
        flex-shrink: 0;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .nav-link {
        padding: 8px 14px;
        border-radius: var(--radius-md);
        font-size: 14px;
        font-weight: 500;
        color: var(--text-body);
        transition: all 0.2s ease;
        position: relative;
        white-space: nowrap;
    }

    .nav-link:hover {
        color: var(--primary);
        background: rgba(37, 99, 235, 0.04);
    }

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

    .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }

    .nav-right {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    /* Mega Menu */
    .mega-trigger {
        position: relative;
    }

    .mega-btn {
        display: flex;
        align-items: center;
        gap: 6px;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        padding: 8px 14px;
        font-size: 14px;
        color: var(--text-body);
        font-weight: 500;
        transition: all 0.2s;
    }

    .mega-btn:hover {
        border-color: var(--primary);
        color: var(--primary);
        background: rgba(37, 99, 235, 0.04);
    }

    .mega-panel {
        position: absolute;
        top: calc(100% + 12px);
        right: 0;
        width: 560px;
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
        padding: 24px;
        display: none;
        grid-template-columns: 1fr 1fr 1.2fr;
        gap: 20px;
        z-index: 200;
    }

    .mega-trigger:hover .mega-panel {
        display: grid;
    }

    .mega-panel::before {
        content: '';
        position: absolute;
        top: -8px;
        right: 30px;
        width: 14px;
        height: 14px;
        background: var(--card);
        border-left: 1px solid var(--border);
        border-top: 1px solid var(--border);
        transform: rotate(45deg);
    }

    .mega-col h4 {
        font-size: 13px;
        color: var(--text-weak);
        margin-bottom: 12px;
        letter-spacing: 0.4px;
    }

    .mega-col a {
        display: block;
        padding: 6px 0;
        font-size: 14px;
        color: var(--text-body);
        transition: color 0.2s;
    }

    .mega-col a:hover {
        color: var(--primary);
    }

    .mega-card {
        background: var(--bg);
        border-radius: var(--radius-md);
        padding: 16px;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .mega-card img {
        border-radius: 8px;
        height: 80px;
        object-fit: cover;
        width: 100%;
    }

    .mega-card p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.5;
    }

    .text-link {
        color: var(--primary);
        font-size: 13px;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: color 0.2s;
    }

    .text-link:hover {
        text-decoration: underline;
        color: var(--primary-dark);
    }

    .nav-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 20px;
        color: var(--text-heading);
        padding: 6px;
        border-radius: var(--radius-md);
        transition: color 0.2s;
    }

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

    /* Mobile Drawer */
    .mobile-drawer {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100%;
        background: var(--card);
        z-index: 1000;
        transition: right 0.3s ease;
        padding: 24px;
        box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .mobile-drawer.open {
        right: 0;
    }

    .drawer-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .drawer-close {
        font-size: 20px;
        color: var(--text-muted);
        padding: 6px;
        border-radius: var(--radius-md);
    }

    .drawer-close:hover {
        color: var(--primary);
        background: var(--bg);
    }

    .drawer-nav {
        display: flex;
        flex-direction: column;
        gap: 4px;
    }

    .drawer-nav a {
        padding: 12px 14px;
        border-radius: var(--radius-md);
        font-size: 15px;
        font-weight: 500;
        color: var(--text-body);
        transition: all 0.2s;
    }

    .drawer-nav a:hover {
        color: var(--primary);
        background: rgba(37, 99, 235, 0.04);
    }

    .drawer-overlay {
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.5);
        z-index: 999;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s;
    }

    .drawer-overlay.open {
        opacity: 1;
        pointer-events: auto;
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 13px;
        color: var(--text-weak);
        padding: 28px 0 0;
    }

    .breadcrumb a {
        color: var(--text-muted);
        transition: color 0.2s;
    }

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

    .breadcrumb .sep {
        color: #CBD5E1;
        font-size: 11px;
        display: flex;
        align-items: center;
    }

    .breadcrumb .current {
        color: var(--text-muted);
        max-width: 320px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* ===== Article Layout ===== */
    .article-page {
        padding-bottom: 80px;
    }

    .article-layout {
        max-width: 860px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .article-card {
        background: var(--card);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
        padding: 48px;
        margin-top: 24px;
    }

    .article-title {
        font-size: 36px;
        line-height: 1.3;
        font-weight: 700;
        color: var(--text-heading);
        margin-bottom: 20px;
        letter-spacing: -0.01em;
    }

    .article-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        padding-bottom: 24px;
        border-bottom: 1px solid var(--border);
        font-size: 14px;
        color: var(--text-muted);
    }

    .article-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .article-meta i {
        color: var(--text-weak);
    }

    .article-content {
        padding-top: 32px;
        font-size: 17px;
        line-height: 1.8;
        color: var(--text-body);
    }

    .article-content > * + * {
        margin-top: 20px;
    }

    .article-content h2 {
        font-size: 24px;
        font-weight: 700;
        color: var(--text-heading);
        margin-top: 36px;
        margin-bottom: 12px;
        padding-bottom: 10px;
        border-bottom: 1px solid var(--border);
    }

    .article-content h3 {
        font-size: 20px;
        font-weight: 600;
        color: var(--text-heading);
        margin-top: 28px;
    }

    .article-content h4 {
        font-size: 18px;
        font-weight: 600;
        color: var(--text-heading);
        margin-top: 20px;
    }

    .article-content p {
        line-height: 1.8;
    }

    .article-content img {
        border-radius: var(--radius-lg);
        margin: 24px 0;
        height: auto;
    }

    .article-content blockquote {
        border-left: 4px solid var(--primary);
        background: rgba(37, 99, 235, 0.04);
        padding: 16px 24px;
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
        color: var(--text-muted);
        font-size: 15px;
    }

    .article-content ul {
        padding-left: 20px;
        list-style: disc;
    }

    .article-content ol {
        padding-left: 20px;
        list-style: decimal;
    }

    .article-content li {
        margin: 8px 0;
    }

    .article-content a {
        color: var(--primary);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .article-content a:hover {
        color: var(--primary-dark);
    }

    .article-content table {
        width: 100%;
        border-collapse: collapse;
        margin: 24px 0;
        font-size: 15px;
    }

    .article-content th,
    .article-content td {
        border: 1px solid var(--border);
        padding: 10px 14px;
        text-align: left;
    }

    .article-content th {
        background: var(--bg);
        font-weight: 600;
        color: var(--text-heading);
    }

    .article-content code {
        background: var(--bg);
        border: 1px solid var(--border);
        padding: 2px 6px;
        border-radius: 4px;
        font-size: 14px;
        font-family: "SFMono-Regular", Consolas, monospace;
    }

    .article-content pre {
        background: #0F172A;
        color: #E2E8F0;
        padding: 20px;
        border-radius: var(--radius-lg);
        overflow-x: auto;
        font-size: 14px;
        line-height: 1.7;
    }

    .article-content pre code {
        background: transparent;
        border: none;
        padding: 0;
        color: inherit;
    }

    .article-content hr {
        border: none;
        border-top: 1px solid var(--border);
        margin: 32px 0;
    }

    .article-content .aligncenter {
        margin-left: auto;
        margin-right: auto;
    }

    .article-content .alignleft {
        float: left;
        margin-right: 16px;
    }

    .article-content .alignright {
        float: right;
        margin-left: 16px;
    }

    /* ===== Empty State ===== */
    .article-empty {
        padding: 80px 24px;
        text-align: center;
    }

    .empty-icon {
        font-size: 48px;
        color: var(--text-weak);
        margin-bottom: 16px;
    }

    .article-empty p {
        color: var(--text-muted);
        font-size: 16px;
        margin-bottom: 20px;
    }

    /* ===== Tags ===== */
    .article-tags-row {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 36px;
        padding-top: 24px;
        border-top: 1px solid var(--border);
    }

    .tag-badge {
        background: rgba(37, 99, 235, 0.08);
        color: var(--primary);
        padding: 6px 14px;
        border-radius: var(--radius-sm);
        font-size: 13px;
        font-weight: 500;
        transition: all 0.2s;
    }

    .tag-badge:hover {
        background: rgba(37, 99, 235, 0.14);
        color: var(--primary-dark);
    }

    /* ===== Pager ===== */
    .article-pager {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        margin-top: 32px;
    }

    .pager-card {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 20px 24px;
        transition: all 0.25s ease;
        display: block;
    }

    .pager-card:hover {
        border-color: var(--primary);
        box-shadow: var(--shadow-hover);
        transform: translateY(-2px);
    }

    .pager-card.next {
        text-align: right;
    }

    .pager-label {
        font-size: 12px;
        color: var(--text-weak);
        margin-bottom: 6px;
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .pager-card.next .pager-label {
        justify-content: flex-end;
    }

    .pager-title {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-heading);
        line-height: 1.4;
    }

    /* ===== Related ===== */
    .related-section {
        margin-top: 48px;
    }

    .related-title {
        font-size: 22px;
        font-weight: 700;
        color: var(--text-heading);
        margin-bottom: 20px;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .related-title::before {
        content: '';
        width: 4px;
        height: 20px;
        background: var(--primary);
        border-radius: 2px;
    }

    .related-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }

    .related-card {
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: all 0.25s ease;
    }

    .related-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
        border-color: rgba(37, 99, 235, 0.2);
    }

    .related-card img {
        width: 100%;
        height: 120px;
        object-fit: cover;
    }

    .related-card-body {
        padding: 16px;
    }

    .related-card-body h4 {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-heading);
        line-height: 1.5;
        margin-bottom: 6px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .related-card-body p {
        font-size: 12px;
        color: var(--text-weak);
    }

    /* ===== Article CTA ===== */
    .article-cta {
        background: linear-gradient(135deg, #FFFFFF 0%, #F0F7FF 100%);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 40px;
        text-align: center;
        margin-top: 48px;
    }

    .article-cta h3 {
        font-size: 22px;
        font-weight: 700;
        color: var(--text-heading);
        margin-bottom: 8px;
    }

    .article-cta p {
        color: var(--text-muted);
        margin-bottom: 24px;
        font-size: 15px;
    }

    .btn-group {
        display: flex;
        justify-content: center;
        gap: 12px;
        flex-wrap: wrap;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 24px;
        border-radius: var(--radius-md);
        font-size: 14px;
        font-weight: 600;
        border: none;
        transition: all 0.2s ease;
    }

    .btn-primary {
        background: var(--primary);
        color: #fff;
        box-shadow: 0 1px 3px rgba(37, 99, 235, 0.3);
    }

    .btn-primary:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    }

    .btn-primary:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

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

    .btn-outline:hover {
        border-color: var(--primary);
        background: rgba(37, 99, 235, 0.05);
        transform: translateY(-1px);
    }

    .btn-outline:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

    /* ===== Footer ===== */
    .site-footer {
        background: #F8FAFC;
        border-top: 1px solid var(--border);
        padding: 60px 0 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 40px;
        padding-bottom: 40px;
    }

    .footer-brand .brand {
        margin-bottom: 14px;
    }

    .footer-desc {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-top: 14px;
    }

    .footer-col h4 {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-heading);
        margin-bottom: 16px;
    }

    .footer-col ul li {
        margin-bottom: 10px;
    }

    .footer-col a {
        font-size: 13px;
        color: var(--text-muted);
        transition: color 0.2s;
    }

    .footer-col a:hover {
        color: var(--primary);
    }

    .footer-contact li {
        font-size: 13px;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 8px;
        line-height: 1.5;
    }

    .footer-contact i {
        color: var(--text-weak);
        width: 16px;
        text-align: center;
    }

    .footer-bottom {
        border-top: 1px solid var(--border);
        padding: 20px 0;
        text-align: center;
        font-size: 13px;
        color: var(--text-weak);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .mega-trigger {
            display: none;
        }

        .main-nav {
            display: none;
        }

        .nav-toggle {
            display: block;
        }

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

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

    @media (max-width: 768px) {
        .header-inner {
            padding: 0 20px;
        }

        .container {
            padding: 0 20px;
        }

        .article-layout {
            padding: 0 20px;
        }

        .article-card {
            padding: 32px;
        }

        .article-title {
            font-size: 28px;
        }

        .article-pager {
            grid-template-columns: 1fr;
        }

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

        .article-cta {
            padding: 28px 20px;
        }

        .footer-bottom {
            padding: 16px 20px;
        }
    }

    @media (max-width: 575px) {
        .header-inner {
            padding: 0 16px;
            gap: 12px;
        }

        .brand {
            font-size: 16px;
        }

        .brand-logo {
            width: 32px;
            height: 32px;
            font-size: 13px;
            border-radius: 8px;
        }

        .container {
            padding: 0 16px;
        }

        .breadcrumb {
            padding: 16px 16px 0;
        }

        .article-layout {
            padding: 0 16px;
        }

        .article-card {
            padding: 20px;
            margin-top: 16px;
        }

        .article-title {
            font-size: 24px;
            line-height: 1.35;
        }

        .article-meta {
            gap: 12px;
            font-size: 13px;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.75;
            padding-top: 24px;
        }

        .article-content h2 {
            font-size: 21px;
        }

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

        .article-content img {
            border-radius: 10px;
        }

        .article-content blockquote {
            padding: 12px 16px;
            font-size: 14px;
        }

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

        .related-card img {
            height: 150px;
        }

        .article-cta {
            padding: 24px 16px;
            margin-top: 32px;
        }

        .article-cta h3 {
            font-size: 19px;
        }

        .btn-group {
            flex-direction: column;
        }

        .btn {
            width: 100%;
            justify-content: center;
        }

        .pager-card {
            padding: 16px 18px;
        }

        .article-pager {
            margin-top: 24px;
        }

        .article-tags-row {
            margin-top: 28px;
            padding-top: 20px;
        }

        .footer-grid {
            gap: 24px;
        }

        .site-footer {
            padding-top: 40px;
        }
    }

/* roulang page: category3 */
:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #EFF6FF;
  --accent: #D97706;
  --accent-light: #FEF3C7;
  --bg: #F9FAFB;
  --surface: #FFFFFF;
  --bg-gradient: linear-gradient(180deg, #FFFFFF 0%, #F0F7FF 100%);
  --title: #0F172A;
  --body: #334155;
  --muted: #64748B;
  --weak: #94A3B8;
  --border: #E2E8F0;
  --success: #10B981;
  --warning: #F59E0B;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow: 0 1px 3px rgba(15,23,42,0.06);
  --shadow-hover: 0 8px 24px rgba(30,64,175,0.10);
  --shadow-panel: 0 12px 40px rgba(15,23,42,0.12);
  --container: 1200px;
  --spacer: 96px;
  --spacer-sm: 48px;
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

ul, ol {
  list-style: none;
}

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

/* ========== Header 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--title);
  white-space: nowrap;
  flex-shrink: 0;
}

.brand:hover {
  color: var(--primary);
}

.brand-logo {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
  letter-spacing: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--body);
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.04);
}

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

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px 2px 0 0;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.mega-trigger {
  position: relative;
}

.mega-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 14px;
  color: var(--body);
  cursor: pointer;
  transition: var(--transition);
}

.mega-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}

.mega-btn i {
  color: var(--accent);
}

.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 540px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 999;
}

.mega-trigger:hover .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--weak);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.mega-col a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--body);
  border-radius: 4px;
}

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

.mega-card {
  background: var(--primary-light);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mega-card img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  margin: 0;
}

.mega-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--body);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
}

.text-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--body);
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* 移动端抽屉 */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  height: 100vh;
  background: var(--surface);
  z-index: 2000;
  padding: 32px 24px;
  padding-top: 80px;
  transition: right 0.3s ease;
  box-shadow: -8px 0 30px rgba(15, 23, 42, 0.12);
  overflow-y: auto;
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu .mobile-nav-link {
  display: block;
  padding: 14px 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--body);
  border-bottom: 1px solid var(--border);
}

.mobile-menu .mobile-nav-link.active,
.mobile-menu .mobile-nav-link:hover {
  color: var(--primary);
}

.mobile-menu .mobile-nav-link.active {
  font-weight: 700;
}

.mobile-mega {
  margin-top: 24px;
}

.mobile-mega h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--weak);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.mobile-mega a {
  display: block;
  padding: 10px 0;
  font-size: 15px;
  color: var(--body);
}

.mobile-mega a:hover {
  color: var(--primary);
}

.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  z-index: 1500;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.menu-overlay.show {
  opacity: 1;
  visibility: visible;
}

/* ========== 页面小型 Banner ========== */
.page-hero {
  background: var(--bg-gradient);
  border-bottom: 1px solid var(--border);
  padding: 64px 0 40px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: var(--primary-light);
  border-radius: 50%;
  opacity: 0.6;
  z-index: 0;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--weak);
  margin-bottom: 16px;
}

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

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

.breadcrumb i {
  font-size: 12px;
  color: var(--border);
}

.page-hero h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--title);
  line-height: 1.3;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 640px;
  line-height: 1.7;
}

.page-hero .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  margin-bottom: 16px;
}

/* ========== 主内容双栏布局 ========== */
.guide-layout {
  padding: 64px 0 80px;
}

.guide-layout .container {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

/* 左侧长文 */
.guide-main {
  min-width: 0;
}

.guide-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.guide-block:hover {
  box-shadow: var(--shadow-hover);
}

.guide-block .block-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 20px;
  border-radius: 10px;
  margin-bottom: 16px;
}

.guide-block h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 14px;
  line-height: 1.4;
}

.guide-block p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--body);
  margin-bottom: 16px;
}

.guide-block p:last-child {
  margin-bottom: 0;
}

.guide-block img {
  width: 100%;
  max-height: 280px;
  object-fit: cover;
  border-radius: var(--radius);
  margin: 20px 0;
  border: 1px solid var(--border);
}

.guide-block .block-sub-list {
  margin-top: 16px;
  padding: 0;
}

.guide-block .block-sub-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--body);
  border-bottom: 1px dashed var(--border);
}

.guide-block .block-sub-list li:last-child {
  border-bottom: none;
}

.guide-block .block-sub-list li i {
  color: var(--primary);
  font-size: 14px;
  margin-top: 5px;
  flex-shrink: 0;
}

/* 侧栏 */
.guide-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 88px;
}

.side-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.side-card:hover {
  box-shadow: var(--shadow-hover);
}

.side-card .side-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  border-radius: 10px;
  margin-bottom: 14px;
}

.side-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 12px;
}

.side-card-list {
  padding: 0;
}

.side-card-list li {
  margin-bottom: 4px;
}

.side-card-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--body);
  border-radius: 8px;
  transition: var(--transition);
}

.side-card-list a i {
  color: var(--primary);
  font-size: 14px;
  width: 20px;
  text-align: center;
}

.side-card-list a:hover {
  background: var(--primary-light);
  color: var(--primary);
  padding-left: 16px;
}

.side-card.tip-card {
  background: var(--primary-light);
  border-color: rgba(37, 99, 235, 0.15);
}

.side-card.tip-card .side-icon {
  background: var(--surface);
}

.side-card.tip-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--body);
}

.side-card.tip-card .tip-highlight {
  font-weight: 600;
  color: var(--primary);
}

.side-card .recommend-item {
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}

.side-card .recommend-item:last-child {
  border-bottom: none;
}

.side-card .recommend-item .rec-date {
  font-size: 12px;
  color: var(--weak);
  display: block;
  margin-bottom: 4px;
}

.side-card .recommend-item a {
  font-size: 14px;
  color: var(--body);
  line-height: 1.5;
  font-weight: 500;
}

.side-card .recommend-item a:hover {
  color: var(--primary);
}

/* ========== FAQ 手风琴 ========== */
.faq-section {
  margin-top: 40px;
}

.faq-section .section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
}

.faq-section h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 28px;
  line-height: 1.4;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  background: var(--primary-light);
  border-color: rgba(37, 99, 235, 0.3);
}

.faq-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--title);
  transition: var(--transition);
}

.faq-item-header:hover {
  color: var(--primary);
}

.faq-item-header .faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-item-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item-answer p {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--body);
}

/* ========== CTA 横幅 ========== */
.cta-banner {
  padding: 64px 0;
  background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  position: relative;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.92);
}

.cta-banner .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-banner h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 12px;
}

.cta-banner p {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn i {
  font-size: 14px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}

.btn-primary:active {
  background: #1E40AF;
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--primary);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
}

.btn:focus,
.btn-primary:focus,
.btn-secondary:focus {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
  outline: none;
}

/* ========== Footer ========== */
.site-footer {
  background: #F8FAFC;
  border-top: 1px solid var(--border);
  padding-top: 56px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .brand {
  font-size: 20px;
  margin-bottom: 14px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 320px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 13px;
  color: var(--muted);
  transition: var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.footer-contact li i {
  color: var(--primary);
  width: 16px;
  text-align: center;
  font-size: 13px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--weak);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .main-nav {
    gap: 0;
  }
  
  .nav-link {
    padding: 8px 12px;
    font-size: 14px;
  }
  
  .mega-btn {
    display: none;
  }
  
  .guide-layout .container {
    grid-template-columns: 1fr;
  }
  
  .guide-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  
  .cta-banner h2 {
    font-size: 24px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .header-inner {
    padding: 0 16px;
  }
  
  .page-hero {
    padding: 40px 0 32px;
  }
  
  .page-hero h1 {
    font-size: 28px;
  }
  
  .page-hero p {
    font-size: 16px;
  }
  
  .guide-layout {
    padding: 40px 0 56px;
  }
  
  .guide-block {
    padding: 24px;
  }
  
  .guide-block h2 {
    font-size: 20px;
  }
  
  .guide-sidebar {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .cta-btn-group {
    flex-direction: column;
    padding: 0 24px;
  }
  
  .cta-btn-group .btn {
    width: 100%;
  }
}

@media (max-width: 575px) {
  :root {
    --container: 100%;
  }
  
  .container {
    padding: 0 16px;
  }
  
  .page-hero h1 {
    font-size: 26px;
  }
  
  .page-hero p {
    font-size: 15px;
  }
  
  .guide-block {
    padding: 20px;
  }
  
  .guide-block p {
    font-size: 15px;
  }
  
  .faq-item-header {
    font-size: 15px;
    padding: 16px;
  }
  
  .faq-item-answer p {
    padding: 0 16px 16px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .footer-brand .footer-desc {
    max-width: 100%;
  }
  
  .brand {
    font-size: 18px;
  }
  
  .brand-logo {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }
  
  .cta-banner {
    padding: 48px 0;
  }
  
  .cta-banner h2 {
    font-size: 22px;
  }
  
  .mega-panel {
    display: none;
  }
}

/* roulang page: category2 */
:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #EFF6FF;
  --accent: #D97706;
  --bg: #F9FAFB;
  --card-bg: #FFFFFF;
  --text-main: #0F172A;
  --text-body: #334155;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --success: #10B981;
  --warning: #F59E0B;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.06);
  --shadow-md: 0 8px 24px rgba(30,64,175,0.10);
  --shadow-lg: 0 12px 40px rgba(15,23,42,0.12);
  --container: 1200px;
  --header-h: 64px;
  --transition: 0.25s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--primary-dark);
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 80px 0;
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.section-head p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
}
/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 1px 2px rgba(15,23,42,0.1);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}
.btn-primary:active {
  background: #1E40AF;
  transform: translateY(0);
  box-shadow: none;
}
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-light:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--border);
}
.btn-secondary:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
}
.btn-light {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.btn-light:hover {
  background: #F0F7FF;
  border-color: #fff;
  color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
}
.text-link:hover {
  color: var(--primary-dark);
  gap: 8px;
}
.text-link i {
  font-size: 12px;
  transition: transform 0.2s;
}
.text-link:hover i {
  transform: translateX(3px);
}
/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-main);
  white-space: nowrap;
  flex-shrink: 0;
}
.brand:hover {
  color: var(--text-main);
}
.brand-logo {
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 6px rgba(37,99,235,0.25);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  position: relative;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--text-body);
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(37,99,235,0.04);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -3px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.mega-trigger {
  position: relative;
}
.mega-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F1F5F9;
  border: 1px solid var(--border);
  color: var(--text-body);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.mega-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
}
.mega-btn i.fa-fire {
  color: var(--accent);
}
.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 560px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s ease;
  z-index: 200;
}
.mega-trigger:hover .mega-panel,
.mega-trigger:focus-within .mega-panel,
.mega-trigger.open .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.mega-col a {
  display: block;
  padding: 6px 0;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.2s, padding-left 0.2s;
}
.mega-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.mega-card {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #F8FAFC, #F0F7FF);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.mega-card img {
  width: 108px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.mega-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 6px;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-main);
  padding: 8px;
  cursor: pointer;
  border-radius: var(--radius-xs);
}
.nav-toggle:hover {
  background: #F1F5F9;
}
/* ===== Breadcrumb ===== */
.breadcrumb {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb i {
  font-size: 10px;
  color: var(--text-muted);
}
.breadcrumb .current {
  color: var(--text-body);
  font-weight: 500;
}
/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  background: linear-gradient(135deg, #FFFFFF 0%, #F0F7FF 55%, #E8F1FE 100%);
  padding: 88px 0 80px;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(37,99,235,0.06);
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(217,119,6,0.05);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 48px;
}
.hero-content {
  flex: 1;
  max-width: 640px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37,99,235,0.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}
.hero-badge i {
  font-size: 12px;
}
.page-hero h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.page-hero .hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-meta {
  flex: 0 0 240px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.hero-meta-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.hero-meta-card .num {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.hero-meta-card .num.accent {
  color: var(--accent);
}
.hero-meta-card .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
/* ===== Feature Strip ===== */
.feature-strip {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}
.feature-strip .container {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 16px;
  background: var(--bg);
  border-radius: 100px;
  border: 1px solid var(--border);
}
.feature-item i {
  color: var(--primary);
  font-size: 16px;
}
/* ===== Info Cards (Double Column) ===== */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.info-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37,99,235,0.2);
}
.card-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: #E2E8F0;
}
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.info-card:hover .card-thumb img {
  transform: scale(1.04);
}
.card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255,255,255,0.92);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  backdrop-filter: blur(4px);
  box-shadow: 0 1px 4px rgba(15,23,42,0.08);
}
.card-body {
  padding: 22px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}
.card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
}
.card-body .text-link {
  align-self: flex-start;
}
/* ===== Process Steps ===== */
.process-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 8px;
}
.process-step {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  transition: all 0.3s ease;
}
.process-step:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-num {
  font-size: 40px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 2px var(--primary);
  line-height: 1;
  margin-bottom: 12px;
}
.process-step h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.process-arrow {
  position: absolute;
  top: 50%;
  right: -16px;
  transform: translateY(-50%);
  color: var(--border);
  font-size: 18px;
  z-index: 2;
}
/* ===== CTA Banner ===== */
.cta-banner {
  position: relative;
  background: linear-gradient(120deg, var(--primary) 0%, #3B82F6 100%);
  padding: 64px 0;
  text-align: center;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}
.cta-banner .container {
  position: relative;
  z-index: 2;
}
.cta-banner h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.cta-banner p {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
}
/* ===== FAQ ===== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.3s, border-color 0.3s;
}
.faq-item:hover {
  border-color: rgba(37,99,235,0.25);
}
.faq-item.active {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(37,99,235,0.08);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main);
  text-align: left;
  transition: background 0.2s;
}
.faq-question:hover {
  background: #F8FAFC;
}
.faq-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
  transition: all 0.3s;
}
.faq-item.active .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 22px 20px;
}
.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-left: 3px solid var(--primary);
  padding-left: 14px;
  margin-top: 4px;
}
/* ===== Footer ===== */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .brand {
  margin-bottom: 14px;
}
.footer-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: 12px;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s, padding-left 0.2s;
}
.footer-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-contact li {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact li i {
  width: 18px;
  color: var(--primary);
  font-size: 14px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .container {
    padding: 0 24px;
  }
  .section {
    padding: 64px 0;
  }
  .hero-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-meta {
    flex: none;
    width: 100%;
  }
  .main-nav {
    gap: 2px;
  }
  .nav-link {
    padding: 8px 12px;
    font-size: 14px;
  }
  .mega-panel {
    width: 480px;
  }
  .feature-strip .container {
    justify-content: center;
  }
  .process-steps {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .section {
    padding: 48px 0;
  }
  .section-head {
    margin-bottom: 32px;
  }
  .section-head h2 {
    font-size: 22px;
  }
  .nav-toggle {
    display: block;
  }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    width: 300px;
    height: calc(100vh - var(--header-h));
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 20px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    box-shadow: -8px 0 30px rgba(15,23,42,0.1);
    z-index: 100;
    border-left: 1px solid var(--border);
    overflow-y: auto;
  }
  .main-nav.open {
    transform: translateX(0);
  }
  .nav-link {
    width: 100%;
    font-size: 15px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-link.active {
    background: var(--primary-light);
  }
  .mega-btn {
    padding: 8px 10px;
  }
  .mega-btn .mega-text {
    display: none;
  }
  .mega-panel {
    position: fixed;
    top: var(--header-h);
    right: 0;
    width: 300px;
    height: calc(100vh - var(--header-h));
    border-radius: 0;
    border-top: none;
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transform: translateX(100%);
    opacity: 1;
    visibility: hidden;
    transition: transform 0.35s ease;
    box-shadow: -8px 0 30px rgba(15,23,42,0.1);
    padding: 24px;
  }
  .mega-trigger.open .mega-panel {
    visibility: visible;
    transform: translateX(0);
  }
  .mega-card {
    flex-direction: column;
    align-items: flex-start;
  }
  .mega-card img {
    width: 100%;
    height: auto;
    max-height: 100px;
  }
  .page-hero {
    padding: 56px 0 48px;
  }
  .page-hero h1 {
    font-size: 26px;
  }
  .page-hero .hero-subtitle {
    font-size: 16px;
  }
  .info-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .feature-strip {
    padding: 20px 0;
  }
  .feature-item {
    font-size: 13px;
    padding: 6px 12px;
  }
  .cta-banner {
    padding: 48px 0;
  }
  .cta-banner h2 {
    font-size: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    padding: 16px 0;
  }
}
@media (max-width: 575px) {
  .container {
    padding: 0 16px;
  }
  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }
  .brand {
    font-size: 16px;
  }
  .brand-logo {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .mega-btn {
    padding: 8px;
  }
  .mega-btn i.fa-fire {
    font-size: 14px;
  }
  .main-nav {
    width: 260px;
  }
  .mega-panel {
    width: 260px;
  }
  .feature-strip .container {
    gap: 8px;
  }
  .feature-item {
    width: calc(50% - 8px);
    justify-content: center;
  }
  .process-steps {
    grid-template-columns: 1fr;
  }
  .step-num {
    font-size: 32px;
  }
  .card-body {
    padding: 18px;
  }
  .faq-question {
    font-size: 15px;
    padding: 16px;
  }
  .faq-answer p {
    font-size: 14px;
    padding-left: 12px;
  }
  .faq-item.active .faq-answer {
    padding: 0 16px 16px;
  }
}