/* roulang page: index */
:root {
            --brand-600: #005edb;
            --brand-800: #0a3b82;
            --brand-950: #0a1a3a;
            --bg-light: #f4f7fb;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --transition-base: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 8px rgba(15, 42, 94, 0.04);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            flex-shrink: 0;
        }

        .brand-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #0f7aff 0%, #0a3b82 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(15, 122, 255, 0.3);
        }

        .brand-logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--brand-950);
            letter-spacing: 0.01em;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-logo-text span {
            color: var(--brand-600);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .header-search input {
            width: 220px;
            height: 38px;
            border-radius: 999px;
            background: #f1f5f9;
            padding: 0 1rem 0 2.25rem;
            font-size: 0.875rem;
            color: var(--text-main);
            border: 1px solid transparent;
            transition: var(--transition-base);
        }

        .header-search input:focus {
            background: #fff;
            border-color: var(--brand-600);
            box-shadow: 0 0 0 3px rgba(15, 122, 255, 0.15);
            width: 260px;
        }

        .header-search svg {
            position: absolute;
            left: 0.75rem;
            width: 16px;
            height: 16px;
            color: #94a3b8;
            pointer-events: none;
        }

        .header-btn {
            height: 38px;
            padding: 0 1.25rem;
            border-radius: 999px;
            background: var(--brand-600);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.375rem;
            box-shadow: 0 2px 8px rgba(15, 122, 255, 0.25);
            transition: var(--transition-base);
        }

        .header-btn:hover {
            background: var(--brand-700);
            box-shadow: 0 4px 16px rgba(15, 122, 255, 0.35);
            transform: translateY(-1px);
        }

        .header-btn:active {
            transform: translateY(0);
        }

        .nav-channel-row {
            border-top: 1px solid #f0f2f5;
            background: #ffffff;
        }

        .nav-channel-scroll {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
            padding: 0.25rem 0;
        }

        .nav-channel-scroll::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #475569;
            border-radius: 0.5rem;
            white-space: nowrap;
            position: relative;
            transition: var(--transition-base);
        }

        .nav-channel-link:hover {
            color: var(--brand-600);
            background: #f0f7ff;
        }

        .nav-channel-link.active {
            color: var(--brand-600);
            font-weight: 600;
            background: #f0f7ff;
        }

        .nav-channel-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--brand-600);
            border-radius: 2px;
        }

        .nav-mobile-toggle {
            display: none;
            background: none;
            cursor: pointer;
            padding: 0.4rem;
            border-radius: 0.5rem;
            color: var(--text-main);
        }

        .nav-mobile-toggle:hover {
            background: #f1f5f9;
        }

        @media (max-width: 768px) {
            .header-search {
                display: none;
            }
            .header-btn {
                display: none;
            }
            .nav-mobile-toggle {
                display: flex;
            }
            .nav-channel-scroll {
                display: none;
            }
            .nav-channel-scroll.mobile-open {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                padding: 0.75rem 0;
                gap: 0.25rem;
            }
            .nav-channel-scroll.mobile-open .nav-channel-link {
                display: block;
                padding: 0.75rem 1rem;
                border-radius: 0.5rem;
            }
            .nav-channel-scroll.mobile-open .nav-channel-link.active::after {
                display: none;
            }
            .nav-channel-scroll.mobile-open .nav-channel-link.active {
                background: #f0f7ff;
            }
        }

        /* 移动端抽屉导航 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100%;
            background: #fff;
            z-index: 100;
            box-shadow: -8px 0 32px rgba(15, 42, 94, 0.12);
            transition: right 0.3s ease;
            padding: 2rem 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

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

        .mobile-drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 42, 94, 0.4);
            z-index: 99;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
            backdrop-filter: blur(4px);
        }

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

        /* Hero */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #0a1a3a 0%, #0a3b82 55%, #005edb 100%);
            color: #fff;
            padding: 5rem 0 6rem;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            mix-blend-mode: luminosity;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(transparent, rgba(15, 122, 255, 0.15), transparent);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.375rem 1rem;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 999px;
            font-size: 0.8rem;
            letter-spacing: 0.03em;
            backdrop-filter: blur(8px);
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.15;
            margin: 1.5rem 0 1.25rem;
            letter-spacing: -0.02em;
        }

        .hero p {
            font-size: 1.125rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2.5rem;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.875rem 2rem;
            background: #fff;
            color: var(--brand-800);
            font-weight: 600;
            border-radius: 999px;
            box-shadow: 0 4px 20px rgba(255, 255, 255, 0.25);
            transition: var(--transition-base);
        }

        .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 255, 255, 0.35);
        }

        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.875rem 2rem;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-weight: 500;
            border-radius: 999px;
            backdrop-filter: blur(8px);
            transition: var(--transition-base);
        }

        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 4rem;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 1.5rem 2rem;
            backdrop-filter: blur(10px);
        }

        .hero-metric {
            text-align: center;
        }

        .hero-metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
        }

        .hero-metric-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
        }

        @media (max-width: 768px) {
            .hero {
                padding: 3.5rem 0 4rem;
            }
            .hero h1 {
                font-size: 2.1rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-metrics {
                grid-template-columns: repeat(2, 1fr);
                padding: 1.25rem;
                gap: 1rem;
            }
            .hero-metric-value {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.75rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        /* 板块 */
        .section {
            padding: 5rem 0;
        }

        .section-alt {
            background: #ffffff;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--brand-600);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-950);
            line-height: 1.2;
            margin-bottom: 0.5rem;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
        }

        .section-link {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--brand-600);
            padding: 0.5rem 1rem;
            border-radius: 999px;
            background: #f0f7ff;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .section-link:hover {
            background: #e0f0ff;
            transform: translateX(2px);
        }

        @media (max-width: 768px) {
            .section {
                padding: 3rem 0;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
                margin-bottom: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }

        /* 内容卡片 */
        .content-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            display: flex;
            flex-direction: column;
        }

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

        .content-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #f1f5f9;
        }

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

        .content-card:hover .content-card-image img {
            transform: scale(1.04);
        }

        .content-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 0.25rem 0.75rem;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(4px);
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand-800);
            box-shadow: 0 2px 8px rgba(15, 42, 94, 0.12);
        }

        .content-card-body {
            padding: 1.25rem 1.25rem 1.5rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .content-card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 2.8em;
            transition: color 0.2s ease;
        }

        .content-card:hover .content-card-title {
            color: var(--brand-600);
        }

        .content-card-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 1rem;
        }

        .content-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .content-card-meta time {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
        }

        /* 分类卡片 */
        .category-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 2rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand-500), #38bdf8);
            opacity: 0;
            transition: opacity 0.25s ease;
        }

        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: #bfdbfe;
        }

        .category-card:hover::before {
            opacity: 1;
        }

        .category-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, #0f7aff, #0a3b82);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            margin-bottom: 1.25rem;
        }

        .category-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--brand-950);
            margin-bottom: 0.5rem;
        }

        .category-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }

        .category-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--brand-600);
            transition: var(--transition-base);
        }

        .category-card-link:hover {
            gap: 0.75rem;
            color: var(--brand-800);
        }

        /* 资讯列表 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            background: #fff;
            padding: 1.25rem 1.5rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            border: 1px solid transparent;
        }

        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #dbeafe;
            transform: translateX(4px);
        }

        .news-item-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: #f0f7ff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-600);
        }

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

        .news-item-content h4 {
            font-size: 0.975rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.25rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item-content .news-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-item-meta {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        @media (max-width: 768px) {
            .news-item {
                padding: 1rem;
                gap: 0.75rem;
            }
            .news-item-meta {
                display: none;
            }
            .news-item-content h4 {
                white-space: normal;
            }
            .news-item-content .news-desc {
                white-space: normal;
                display: -webkit-box;
                -webkit-line-clamp: 1;
                -webkit-box-orient: vertical;
            }
        }

        /* 数据统计 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .stat-card {
            background: linear-gradient(135deg, #0a1a3a, #0a3b82);
            border-radius: var(--radius-lg);
            padding: 2rem;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .stat-card::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
        }

        .stat-value {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1;
            background: linear-gradient(135deg, #fff, #93c5fd);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 0.75rem;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1.25rem 0.75rem;
            }
            .stat-value {
                font-size: 1.75rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr 1fr;
            }
        }

        /* 流程步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .step-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: var(--transition-base);
            position: relative;
        }

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

        .step-number {
            width: 48px;
            height: 48px;
            margin: 0 auto 1rem;
            border-radius: 50%;
            background: #f0f7ff;
            color: var(--brand-600);
            font-size: 1.25rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .step-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--brand-950);
            margin-bottom: 0.5rem;
        }

        .step-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }

        @media (max-width: 480px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: #bfdbfe;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.975rem;
            color: var(--text-main);
            gap: 1rem;
        }

        .faq-question svg {
            flex-shrink: 0;
            transition: transform 0.3s ease;
            color: var(--brand-600);
        }

        .faq-item.open .faq-question svg {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #0a1a3a 0%, #0a3b82 60%, #005edb 100%);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            mix-blend-mode: luminosity;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 2rem;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.875rem 2.5rem;
            background: #fff;
            color: var(--brand-800);
            font-weight: 600;
            border-radius: 999px;
            transition: var(--transition-base);
            box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(255, 255, 255, 0.3);
        }

        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.875rem 2.5rem;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-weight: 500;
            border-radius: 999px;
            transition: var(--transition-base);
        }

        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.8);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 3rem 0;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-cta-primary,
            .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
        }

        /* Footer */
        .site-footer {
            background: #0a1a3a;
            color: #94a3b8;
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1rem;
        }

        .footer-brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #0f7aff, #38bdf8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 16px;
        }

        .footer-brand-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: #e2e8f0;
            margin-bottom: 1.25rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: #94a3b8;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(2px);
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            font-size: 0.9rem;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 0.625rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .footer-bottom a {
            color: #64748b;
            transition: var(--transition-base);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* 排版辅助 */
        .text-muted-sm {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .badge-blue {
            background: #f0f7ff;
            color: var(--brand-600);
        }

        .badge-outline {
            border: 1px solid #dbeafe;
            color: var(--brand-600);
            background: transparent;
        }

        .focus-outline:focus {
            outline: 3px solid rgba(15, 122, 255, 0.3);
            outline-offset: 2px;
            border-radius: 0.375rem;
        }

/* roulang page: category1 */
:root {
            --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
        }

        html { scroll-behavior: smooth; }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background: #f7f8fc;
            color: #172341;
            line-height: 1.6;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .nav-wrap { background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid #e9edf5; }
        .nav-brand-logo { width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, #3361f5, #1a39b8); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 20px; color: #fff; }
        .nav-search input { background: #f2f4fa; border: 1px solid #e3e8f2; }
        .nav-search input:focus { outline: none; border-color: #bccfff; box-shadow: 0 0 0 3px rgba(51,97,245,0.12); }

        .nav-channel-scroll::-webkit-scrollbar { height: 0; display: none; }
        .nav-channel-link {
            display: inline-block; padding: 10px 18px; font-size: 15px; font-weight: 500; color: #5b6780;
            border-radius: 999px; white-space: nowrap; transition: all .28s var(--ease-smooth); text-decoration: none;
        }
        .nav-channel-link:hover { color: #1f45e0; background: #eef3ff; transform: translateY(-1px); }
        .nav-channel-link.active { color: #fff; background: #3361f5; box-shadow: 0 4px 14px rgba(51,97,245,0.35); }

        .hero-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 100px 0 90px;
        }
        .hero-banner::before {
            content: '';
            position: absolute; inset: 0;
            background: linear-gradient(100deg, rgba(17,24,48,0.18) 0%, rgba(17,24,48,0.55) 45%, rgba(17,24,48,0.82) 100%);
        }
        .hero-content { position: relative; z-index: 2; }

        .section-badge {
            display: inline-flex; align-items: center; gap: 6px;  padding: 6px 14px; border-radius: 999px;
            font-size: 13px; font-weight: 600; letter-spacing: .05em; background: #eef3ff; color: #1f45e0;
        }

        .news-card {
            border: 1px solid #e9edf5; border-radius: 20px; overflow: hidden; background: #fff;
            transition: all .38s var(--ease-smooth);
        }
        .news-card:hover { box-shadow: 0 4px 16px rgba(23,35,65,0.09), 0 20px 48px rgba(23,35,65,0.10); transform: translateY(-5px); border-color: #dce7ff; }
        .news-card:hover .news-card-img img { transform: scale(1.06); }
        .news-card-img { overflow: hidden; }
        .news-card-img img { transition: transform .55s var(--ease-smooth); width: 100%; height: 200px; object-fit: cover; }

        .rank-item { transition: all .3s ease; }
        .rank-item:hover { background: #eef3ff; transform: translateX(6px); }

        .tag-chip {
            display: inline-block; padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 500;
            background: #f2f4fa; color: #4a5568; border: 1px solid #e3e8f2; transition: all .25s ease; text-decoration: none;
        }
        .tag-chip:hover { border-color: #3361f5; color: #1f45e0; background: #eef3ff; transform: translateY(-2px); }

        .faq-item { border: 1px solid #e9edf5; border-radius: 16px; background: #fff; transition: all .25s ease; }
        .faq-item:hover { border-color: #bccfff; box-shadow: 0 4px 16px rgba(51,97,245,0.08); }
        .faq-btn { cursor: pointer; }

        .cta-section {
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover; background-position: center;
        }
        .cta-section::before { content:''; position: absolute; inset:0; background: rgba(20,28,56,0.82); }
        .cta-content { position: relative; z-index: 2; }

        .site-footer { background: #101829; color: #9fa8c3; }
        .site-footer a { color: #9fa8c3; transition: color .2s ease; }
        .site-footer a:hover { color: #fff; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding: 56px 0 40px; }
        .footer-brand-icon { width: 42px; height: 42px; border-radius: 12px; background: linear-gradient(135deg, #3361f5, #1a39b8); display: flex; align-items: center; justify-content: center; font-size: 18px; color: #fff; font-weight: 700; }
        .footer-links a { display: block; padding: 6px 0; font-size: 14px; text-decoration: none; }
        .footer-contact-item { display: flex; align-items: center; gap: 8px; font-size: 14px; padding: 4px 0; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 13px; }

        .hover-translate { transition: all .3s ease; }
        .hover-translate:hover { transform: translateY(-4px); }

        .pod-section:nth-child(odd) { background: #fff; }

        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .hero-banner { padding: 76px 0 70px; }
        }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .hero-banner { padding: 58px 0 54px; }
            .nav-brand-logo { width: 38px; height: 38px; font-size: 17px; }
            .nav-channel-link { padding: 8px 14px; font-size: 14px; }
        }

        @media (max-width: 520px) {
            .hero-banner { padding: 44px 0 42px; }
            .container-custom { padding-left: 18px; padding-right: 18px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (min-width: 769px) {
            .nav-channel-scroll::-webkit-scrollbar { display: none; }
            .nav-channel-scroll { display: flex; gap: 4px; overflow-x: auto; }
        }

/* roulang page: article */
:root {
            --primary: #0f1e36;
            --primary-light: #1e3a5f;
            --accent: #c8872a;
            --accent-hover: #b47622;
            --text-body: #475569;
            --text-strong: #1e293b;
            --text-weak: #94a3b8;
            --bg-soft: #f8fafc;
            --border-color: #e2e8f0;
            --radius: 16px;
            --shadow: 0 4px 24px rgba(15, 30, 54, .08);
            --shadow-hover: 0 12px 32px rgba(15, 30, 54, .14);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            color: var(--text-body);
            background: #fff;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
        }

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

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(200, 135, 42, .5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            box-shadow: 0 1px 0 rgba(15, 30, 54, .06);
        }

        .nav-brand-row {
            border-bottom: 1px solid var(--border-color);
            background: #fff;
        }

        .nav-brand-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .brand-logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 11px;
            background: linear-gradient(135deg, #0f1e36, #1e3a5f);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 20px;
            box-shadow: 0 4px 12px rgba(15, 30, 54, .18);
        }

        .brand-logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .02em;
            line-height: 1.2;
        }

        .brand-tagline {
            display: none;
            font-size: 13px;
            color: var(--text-weak);
            border-left: 2px solid var(--accent);
            padding-left: 12px;
            margin-left: 4px;
            letter-spacing: .04em;
            white-space: nowrap;
        }

        @media (min-width: 768px) {
            .brand-tagline {
                display: inline-flex;
                align-items: center;
            }
        }

        .nav-channel-row {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }

        .nav-channel-scroll {
            display: flex;
            gap: 2px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-channel-scroll::-webkit-scrollbar {
            display: none;
        }

        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            padding: 13px 18px;
            font-size: 15px;
            font-weight: 500;
            color: #475569;
            border-bottom: 3px solid transparent;
            margin-bottom: -1px;
            white-space: nowrap;
            transition: color .2s, border-color .2s, background .2s;
            background: transparent;
        }

        .nav-channel-link:hover {
            color: var(--primary);
            background: rgba(15, 30, 54, .04);
        }

        .nav-channel-link.active {
            color: var(--primary);
            border-bottom-color: var(--accent);
            font-weight: 600;
            background: transparent;
        }

        @media (max-width: 520px) {
            .nav-brand-flex {
                min-height: 60px;
            }

            .brand-logo-text {
                font-size: 17px;
            }

            .brand-logo-icon {
                width: 34px;
                height: 34px;
                font-size: 17px;
                border-radius: 9px;
            }

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

        /* Hero */
        .article-hero {
            position: relative;
            isolation: isolate;
            overflow: hidden;
        }

        .article-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: -2;
        }

        .article-hero-veil {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(15, 30, 54, .93) 15%, rgba(15, 30, 54, .68) 55%, rgba(15, 30, 54, .4) 100%);
            z-index: -1;
        }

        .article-hero-inner {
            padding: 64px 0 72px;
        }

        @media (max-width: 768px) {
            .article-hero-inner {
                padding: 44px 0 52px;
            }
        }

        .article-hero .breadcrumb-path {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .article-hero .breadcrumb-path a:hover {
            color: #fff;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 26px;
            border-radius: 12px;
            transition: all .25s ease;
            border: 1px solid transparent;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(15, 30, 54, .22);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(15, 30, 54, .16);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #0f1e36;
            font-weight: 600;
            font-size: 14px;
            padding: 12px 26px;
            border-radius: 12px;
            transition: all .25s ease;
            border: 2px solid #0f1e36;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: #0f1e36;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(15, 30, 54, .15);
        }

        .btn-light {
            background: #fff;
            color: #0f1e36;
        }

        .btn-light:hover {
            background: #f1f5f9;
            color: #0f1e36;
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, .65);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: #0f1e36;
            border-color: #fff;
        }

        /* Article content */
        .article-content {
            color: #334155;
            font-size: 16px;
            line-height: 1.85;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 34px 0 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid #e2e8f0;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-strong);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .article-content p {
            margin-bottom: 18px;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 20px;
            padding-left: 24px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

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

        .article-content img {
            border-radius: 14px;
            margin: 26px 0;
            box-shadow: 0 6px 24px rgba(15, 30, 54, .1);
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: #fef9ef;
            padding: 16px 22px;
            border-radius: 0 14px 14px 0;
            margin: 26px 0;
            color: #78521b;
            font-style: normal;
        }

        .article-content blockquote p {
            margin-bottom: 0;
        }

        .article-content a {
            color: var(--primary);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

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

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 26px 0;
            font-size: 14px;
        }

        .article-content th,
        .article-content td {
            padding: 12px 14px;
            border: 1px solid #e2e8f0;
            text-align: left;
        }

        .article-content th {
            background: #f1f5f9;
            font-weight: 600;
            color: var(--text-strong);
        }

        .article-content code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: .9em;
            color: #0f1e36;
        }

        @media (max-width: 768px) {
            .article-content {
                font-size: 15px;
            }

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

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

        /* Tags & badges */
        .tag-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 999px;
            background: #f1f5f9;
            color: #475569;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid #e2e8f0;
            transition: all .2s;
            white-space: nowrap;
        }

        .tag-badge:hover {
            background: #0f1e36;
            color: #fff;
            border-color: #0f1e36;
        }

        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: #f1f5f9;
            color: #475569;
            transition: all .2s;
            border: 1px solid #e2e8f0;
        }

        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            border-color: var(--primary);
            box-shadow: 0 6px 16px rgba(15, 30, 54, .16);
        }

        /* Sidebar */
        .sidebar-card {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 2px 12px rgba(15, 30, 54, .05);
        }

        .sidebar-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-strong);
            padding-bottom: 12px;
            border-bottom: 2px solid #f1f5f9;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: .02em;
        }

        .sidebar-title i {
            color: var(--accent);
        }

        .sidebar-link-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .sidebar-link-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 14px;
            color: #475569;
            transition: all .2s;
            background: #fafbfc;
        }

        .sidebar-link-list a:hover {
            background: #f8fafc;
            color: var(--primary);
            transform: translateX(4px);
            box-shadow: 0 2px 8px rgba(15, 30, 54, .06);
        }

        .sidebar-link-list a i {
            width: 20px;
            text-align: center;
            color: var(--accent);
            font-size: 15px;
        }

        /* Related cards */
        .related-card {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 16px;
            overflow: hidden;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .related-card-img {
            position: relative;
            overflow: hidden;
            height: 190px;
            flex-shrink: 0;
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }

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

        .related-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15, 30, 54, .28));
        }

        .related-content {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-content h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .2s;
        }

        .related-card:hover .related-content h3 {
            color: var(--primary);
        }

        .related-content p {
            font-size: 13px;
            color: #64748b;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
        }

        .related-meta {
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #94a3b8;
        }

        /* Category CTA cards */
        .category-flag-card {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            display: block;
            isolation: isolate;
            min-height: 260px;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .category-flag-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .category-flag-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: -2;
            transition: transform .5s ease;
        }

        .category-flag-card:hover img {
            transform: scale(1.04);
        }

        .category-flag-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(15, 30, 54, .88) 0%, rgba(15, 30, 54, .55) 60%, rgba(15, 30, 54, .35) 100%);
            z-index: -1;
        }

        .category-flag-content {
            padding: 32px;
            color: #fff;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            min-height: 260px;
        }

        .category-flag-content .badge-light {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, .18);
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: .04em;
        }

        .category-flag-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .category-flag-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
            line-height: 1.7;
            max-width: 360px;
            margin-bottom: 0;
        }

        @media (max-width: 640px) {
            .category-flag-content {
                padding: 24px;
                min-height: 220px;
            }

            .category-flag-card,
            .category-flag-content {
                min-height: 220px;
            }

            .category-flag-content h3 {
                font-size: 19px;
            }
        }

        /* FAQ */
        .faq-item {
            border: 1px solid #e2e8f0;
            border-radius: 14px;
            background: #fff;
            transition: box-shadow .25s ease, border-color .25s ease;
        }

        .faq-item:hover {
            border-color: rgba(200, 135, 42, .4);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-weight: 600;
            color: var(--text-strong);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 15px;
            line-height: 1.5;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            color: var(--accent);
            font-size: 14px;
            transition: transform .3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] {
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .faq-item[open] summary {
            border-bottom: 1px solid #f1f5f9;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item p {
            padding: 16px 22px 20px;
            color: #64748b;
            margin: 0;
            font-size: 14px;
            line-height: 1.8;
        }

        /* CTA */
        .cta-card {
            background: linear-gradient(120deg, #0f1e36 0%, #1e3a5f 100%);
            border-radius: 24px;
            padding: 54px 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            right: -70px;
            top: -70px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(200, 135, 42, .18);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            left: 30px;
            bottom: -90px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(200, 135, 42, .12);
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.4;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            max-width: 520px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .cta-card .btn-wrap {
            position: relative;
            z-index: 1;
        }

        @media (max-width: 640px) {
            .cta-card {
                padding: 36px 24px;
                border-radius: 18px;
            }

            .cta-card h2 {
                font-size: 22px;
            }
        }

        /* Not found */
        .not-found-box {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 20px;
            padding: 60px 32px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(15, 30, 54, .05);
            max-width: 480px;
            margin: 0 auto;
        }

        .not-found-box .not-found-icon {
            font-size: 52px;
            color: #cbd5e1;
            margin-bottom: 16px;
        }

        .not-found-box h2 {
            color: var(--text-strong);
            font-weight: 700;
            font-size: 24px;
            margin-bottom: 10px;
        }

        .not-found-box p {
            color: #64748b;
            font-size: 14px;
            margin-bottom: 24px;
        }

        /* Footer */
        .site-footer {
            background: #0b1523;
            color: #94a3b8;
            padding: 64px 0 0;
            margin-top: 80px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 44px;
        }

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

        .footer-brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #c8872a, #e2a24b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .footer-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
        }

        .footer-desc {
            margin-top: 16px;
            font-size: 14px;
            line-height: 1.8;
            width: 90%;
            color: #8296b0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: .03em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: #94a3b8;
            transition: color .2s, padding-left .2s;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, .15);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-desc {
                width: 100%;
            }
        }

        /* Misc */
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-tag::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-strong);
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: -.01em;
        }

        .section-desc {
            color: #64748b;
            font-size: 15px;
            line-height: 1.7;
            max-width: 560px;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 23px;
            }

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

        .badge-cat {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            background: rgba(200, 135, 42, .9);
            padding: 4px 12px;
            border-radius: 999px;
            letter-spacing: .02em;
        }

/* roulang page: category2 */
:root {
            --color-primary: #0f766e;
            --color-primary-light: #14b8a6;
            --color-primary-dark: #134e4a;
            --color-accent: #f59e0b;
            --color-bg: #ffffff;
            --color-surface: #f8fafc;
            --color-text: #0f172a;
            --color-muted: #64748b;
            --color-border: #e2e8f0;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
            --shadow-md: 0 4px 12px rgba(15, 23, 42, .08);
            --shadow-lg: 0 12px 30px rgba(15, 23, 42, .12);
            --container-max: 80rem;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            line-height: 1.6;
            color: var(--color-text);
            background: var(--color-bg);
        }
        img { max-width: 100%; display: block; }
        a { color: inherit; text-decoration: none; }
        button { cursor: pointer; }
        input:focus, button:focus, a:focus, summary:focus {
            outline: 2px solid rgba(20, 184, 166, .4);
            outline-offset: 2px;
        }

        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid #eef2f7;
            box-shadow: 0 1px 8px rgba(15, 23, 42, .04);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding-top: .8rem;
            padding-bottom: .8rem;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: .6rem;
            font-weight: 800;
            font-size: 1.2rem;
            color: #0f172a;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.4rem;
            height: 2.4rem;
            background: linear-gradient(135deg, #0f766e, #14b8a6);
            color: #fff;
            border-radius: .8rem;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(15, 118, 110, .25);
        }
        .header-search {
            display: flex;
            align-items: center;
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 999px;
            overflow: hidden;
            transition: border-color .2s, box-shadow .2s;
        }
        .header-search:focus-within {
            border-color: #14b8a6;
            box-shadow: 0 0 0 3px rgba(20, 184, 166, .15);
        }
        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: .5rem 1rem;
            font-size: .875rem;
            width: 200px;
            color: #0f172a;
        }
        .header-search button {
            background: transparent;
            border: none;
            padding: .5rem 1rem;
            color: #64748b;
            transition: color .2s;
        }
        .header-search button:hover { color: #0f766e; }

        .nav-channel-row { border-top: 1px solid #f1f5f9; background: #fff; }
        .nav-channel-scroll {
            display: flex;
            gap: .4rem;
            overflow-x: auto;
            padding: .5rem 1.25rem;
            max-width: var(--container-max);
            margin: 0 auto;
            scrollbar-width: none;
        }
        .nav-channel-scroll::-webkit-scrollbar { display: none; }
        .nav-channel-link {
            display: inline-flex;
            align-items: center;
            gap: .375rem;
            padding: .5rem 1.1rem;
            border-radius: 999px;
            font-size: .875rem;
            font-weight: 600;
            color: #475569;
            white-space: nowrap;
            transition: all .2s ease;
        }
        .nav-channel-link:hover { background: #f1f5f9; color: #0f766e; }
        .nav-channel-link.active {
            background: #0f766e;
            color: #fff;
            box-shadow: 0 3px 10px rgba(15, 118, 110, .28);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background-size: cover;
            background-position: center;
        }

        /* ===== Cards ===== */
        .card-hover {
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(20, 184, 166, .3);
        }

        .card-cover-image {
            transition: transform .6s cubic-bezier(.4, 0, .2, 1);
        }
        .group:hover .card-cover-image {
            transform: scale(1.06);
        }

        /* ===== FAQ ===== */
        summary::-webkit-details-marker { display: none; }
        summary { list-style: none; }

        .faq-item {
            background: #fff;
            border: 1px solid #e2e8f0;
            border-radius: 1rem;
            padding: 1.2rem 1.4rem;
            transition: border-color .2s, box-shadow .2s;
        }
        .faq-item:hover { border-color: rgba(20, 184, 166, .35); }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand { display: flex; align-items: center; gap: .6rem; margin-bottom: 1rem; }
        .footer-brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.4rem;
            height: 2.4rem;
            background: linear-gradient(135deg, #0f766e, #14b8a6);
            color: #fff;
            border-radius: .8rem;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .footer-brand-text { color: #fff; font-weight: 700; font-size: 1.125rem; }
        .footer-desc { font-size: .875rem; line-height: 1.7; color: #94a3b8; max-width: 300px; }
        .footer-title { color: #f1f5f9; font-size: .9rem; font-weight: 600; margin-bottom: 1rem; letter-spacing: .05em; }
        .footer-links { display: flex; flex-direction: column; gap: .5rem; }
        .footer-links a { color: #94a3b8; font-size: .875rem; transition: color .2s; }
        .footer-links a:hover { color: #14b8a6; }
        .footer-contact { display: flex; flex-direction: column; gap: .75rem; }
        .footer-contact-item {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            font-size: .875rem;
            color: #94a3b8;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1rem;
            padding-top: 2rem;
            font-size: .8rem;
            color: #64748b;
        }
        .footer-bottom a { color: #94a3b8; transition: color .2s; }
        .footer-bottom a:hover { color: #14b8a6; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .header-search input { width: 140px; }
        }
        @media (max-width: 640px) {
            .header-main { flex-wrap: wrap; }
            .header-search { order: 3; width: 100%; }
            .header-search input { width: 100%; }
            .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
            .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
        }