/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b1f3a;
            --primary-light: #16345a;
            --primary-lighter: #1d4375;
            --accent: #e63946;
            --accent-hover: #c92f3c;
            --gold: #f0a500;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0b1f3a;
            --text-main: #1d2733;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
            --radius-sm: 6px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 32px;
            --space-lg: 64px;
            --space-xl: 96px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s ease;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text-main);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            cursor: pointer;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            list-style: none;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: 1rem;
        }
        .grid-container {
            max-width: 1180px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            background: var(--primary);
            color: rgba(255,255,255,0.85);
            font-size: 0.8rem;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .topbar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar-left i {
            color: var(--gold);
            margin-right: 6px;
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.78rem;
        }
        .topbar-right a {
            color: rgba(255,255,255,0.75);
            transition: var(--transition);
        }
        .topbar-right a:hover {
            color: var(--gold);
        }

        /* ===== 主导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-white);
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
        }
        .main-nav {
            background: var(--bg-white);
            padding: 14px 0;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand-logo {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .brand-logo:hover {
            color: var(--accent);
        }
        .brand-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 30px;
            font-weight: 500;
            color: var(--text-main);
            transition: var(--transition);
            font-size: 0.95rem;
            border: 1px solid transparent;
        }
        .nav-links a:hover {
            background: rgba(230, 57, 70, 0.06);
            color: var(--accent);
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-cta {
            background: var(--accent);
            color: #fff;
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(230,57,70,0.3);
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(230,57,70,0.4);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
            z-index: 110;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 3px;
            background: var(--primary);
            margin: 4px 0;
            border-radius: 3px;
            transition: var(--transition);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(135deg, rgba(11,31,58,0.92) 0%, rgba(11,31,58,0.72) 50%, rgba(230,57,70,0.55) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 110px 0 90px;
            color: #fff;
            overflow: hidden;
        }
        .hero-content {
            max-width: 760px;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(240, 165, 0, 0.18);
            border: 1px solid rgba(240, 165, 0, 0.4);
            color: var(--gold);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }
        .hero-title {
            font-size: 2.9rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.85);
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .btn {
            display: inline-block;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230,57,70,0.35);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.45);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.6);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
            padding-top: 10px;
            border-top: 1px solid rgba(255,255,255,0.15);
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 50px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--accent);
            padding: 5px 16px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 0.98rem;
            line-height: 1.6;
        }

        /* ===== 平台优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(230,57,70,0.1), rgba(240,165,0,0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .feature-icon i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            height: 320px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            background: var(--primary);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.65;
            transition: var(--transition);
        }
        .category-card:hover img {
            opacity: 0.4;
            transform: scale(1.05);
        }
        .category-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px;
            background: linear-gradient(transparent, rgba(11,31,58,0.85));
            color: #fff;
        }
        .category-overlay .cat-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .category-overlay h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-overlay p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.8);
            margin-bottom: 14px;
        }
        .category-link {
            color: var(--gold);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .category-link:hover {
            color: #fff;
            gap: 10px;
        }

        /* ===== 资讯列表 ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-item {
            display: flex;
            gap: 18px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 18px;
            border: 1px solid var(--border);
            transition: var(--transition);
            align-items: center;
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .news-thumb {
            flex-shrink: 0;
            width: 180px;
            height: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-item:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-content {
            flex: 1;
        }
        .news-cat {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
            margin-bottom: 6px;
        }
        .news-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 6px;
            color: var(--text-main);
        }
        .news-content h3 a {
            transition: var(--transition);
        }
        .news-content h3 a:hover {
            color: var(--accent);
        }
        .news-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-content time {
            font-size: 0.78rem;
            color: var(--text-light);
        }
        .empty-tip {
            background: var(--bg-white);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 40px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .widget {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .widget-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border);
            position: relative;
        }
        .widget-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 40px;
            height: 2px;
            background: var(--accent);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag {
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .tag:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .widget ul {
            margin: 0;
        }
        .widget ul li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .widget ul li:last-child {
            border-bottom: none;
        }
        .widget ul li a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        .widget ul li a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .widget ul li a span {
            color: var(--text-light);
            font-size: 0.78rem;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary) 0%, #0f2b4d 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.12);
        }
        .stats-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(240, 165, 0, 0.08);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 2;
        }
        .stat-item {
            text-align: center;
            padding: 30px 16px;
            border-radius: var(--radius-md);
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255,255,255,0.07);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1;
            margin-bottom: 10px;
        }
        .stat-number strong {
            font-size: 1.8rem;
        }
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }

        /* ===== 内容看点 ===== */
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .showcase-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .showcase-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .showcase-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .showcase-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .showcase-card:hover .showcase-img img {
            transform: scale(1.06);
        }
        .showcase-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
        }
        .showcase-body {
            padding: 22px;
        }
        .showcase-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .showcase-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 服务流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--gold), var(--accent));
            opacity: 0.4;
        }
        .step-item {
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .step-num {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 800;
            margin: 0 auto 18px;
            box-shadow: 0 6px 18px rgba(11,31,58,0.3);
            border: 3px solid #fff;
        }
        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
            background: var(--bg-white);
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.3);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-main);
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-item[open] summary {
            color: var(--accent);
            border-bottom: 1px solid var(--border);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            padding: 18px 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(11,31,58,0.88), rgba(230,57,70,0.72)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: 90px 0;
            text-align: center;
            color: #fff;
        }
        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            margin-bottom: 30px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand i {
            color: var(--accent);
        }
        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--gold);
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .footer-contact i {
            color: var(--gold);
        }
        .copyright {
            text-align: center;
            padding: 22px 0;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.45);
            border-top: 1px solid rgba(255,255,255,0.06);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .showcase-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .steps-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px;
                box-shadow: var(--shadow-lg);
                border-top: 1px solid var(--border);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 12px;
            }
            .nav-cta {
                display: none;
            }
            .hero {
                padding: 70px 0;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-stats {
                gap: 18px;
            }
            .categories-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .showcase-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-thumb {
                width: 100%;
                height: 180px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .step-num {
                width: 60px;
                height: 60px;
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .topbar-inner {
                flex-direction: column;
                gap: 4px;
                text-align: center;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                text-align: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 1.9rem;
            }
            .stat-number strong {
                font-size: 1.4rem;
            }
            .hero-stat .num {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 焦点可见性 ===== */
        a:focus-visible, button:focus-visible, summary:focus-visible {
            outline: 3px solid rgba(230, 57, 70, 0.4);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
            --primary: #E84A2A;
            --primary-dark: #C93A1D;
            --primary-light: #FFF0EC;
            --secondary: #1B2A4A;
            --secondary-light: #26406E;
            --bg: #F7F8FA;
            --bg-white: #FFFFFF;
            --text: #141B2D;
            --text-light: #5A6B7F;
            --border: #E8ECF1;
            --shadow-sm: 0 2px 8px rgba(20, 27, 45, 0.06);
            --shadow-md: 0 8px 30px rgba(20, 27, 45, 0.1);
            --shadow-lg: 0 16px 50px rgba(20, 27, 45, 0.14);
            --radius: 16px;
            --radius-sm: 10px;
            --transition: all 0.3s ease;
            --container-w: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
        }

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

        .section-padding {
            padding: 80px 0;
        }

        .section-header {
            max-width: 720px;
            margin-bottom: 44px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 5px 16px;
            border-radius: 30px;
            margin-bottom: 14px;
        }

        .section-header h2 {
            font-size: clamp(1.7rem, 3.4vw, 2.4rem);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-header p {
            font-size: 1.02rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .text-primary {
            color: var(--primary) !important;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-white);
            box-shadow: 0 1px 0 rgba(20, 27, 45, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .main-nav {
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 20px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text);
            white-space: nowrap;
        }

        .brand-logo i {
            color: var(--primary);
            font-size: 1.5rem;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 22px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-light);
            border-radius: 30px;
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, #E84A2A, #F0623C);
            box-shadow: 0 4px 14px rgba(232, 74, 42, 0.28);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--secondary);
            color: #fff;
            font-size: 0.92rem;
            font-weight: 600;
            border-radius: 30px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(27, 42, 74, 0.25);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--bg);
        }

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

        /* ===== Hero Banner ===== */
        .category-hero {
            position: relative;
            padding: 110px 0 120px;
            background: linear-gradient(135deg, #0F1B33 0%, #1B2A4A 50%, #2C1B33 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 18, 35, 0.88) 0%, rgba(15, 27, 51, 0.72) 45%, rgba(232, 74, 42, 0.25) 100%);
            z-index: 1;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 74, 42, 0.3), transparent 70%);
            z-index: 2;
        }

        .category-hero .grid-container {
            position: relative;
            z-index: 3;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 24px;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }

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

        .hero-breadcrumb i {
            font-size: 0.7rem;
            opacity: 0.5;
        }

        .category-hero h1 {
            font-size: clamp(2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .category-hero h1 span {
            color: #FF6D4A;
        }

        .category-hero .hero-desc {
            font-size: 1.1rem;
            max-width: 620px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-main {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: linear-gradient(135deg, #FF5D38, #E84A2A);
            color: #fff;
            font-size: 0.98rem;
            font-weight: 600;
            border-radius: 40px;
            box-shadow: 0 8px 24px rgba(232, 74, 42, 0.4);
            transition: var(--transition);
        }

        .btn-main:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(232, 74, 42, 0.5);
            color: #fff;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            font-size: 0.98rem;
            font-weight: 600;
            border-radius: 40px;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            margin-top: 50px;
            padding-top: 36px;
            border-top: 1px solid rgba(255, 255, 255, 0.18);
        }

        .hero-metrics .metric-item {
            display: flex;
            flex-direction: column;
        }

        .hero-metrics .metric-num {
            font-size: 1.9rem;
            font-weight: 800;
            color: #FF6D4A;
            line-height: 1.2;
        }

        .hero-metrics .metric-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ===== Section Intro ===== */
        .intro-section {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .intro-card {
            padding: 36px 28px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .intro-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .intro-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 74, 42, 0.25);
        }

        .intro-card:hover::after {
            opacity: 1;
        }

        .intro-card .card-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.35rem;
            margin-bottom: 20px;
        }

        .intro-card:nth-child(2) .card-icon {
            background: #EEF5FF;
            color: #2E7CF6;
        }

        .intro-card:nth-child(3) .card-icon {
            background: #EEF9F0;
            color: #219653;
        }

        .intro-card:nth-child(4) .card-icon {
            background: #FFF7E8;
            color: #F2994A;
        }

        .intro-card h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .intro-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== News Grid ===== */
        .news-section {
            background: var(--bg);
        }

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

        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(232, 74, 42, 0.2);
        }

        .news-card .card-cover-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .news-card .card-cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .news-card:hover .card-cover-wrap img {
            transform: scale(1.06);
        }

        .news-card .card-cover-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(20, 27, 45, 0.35));
            pointer-events: none;
        }

        .news-card .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            z-index: 2;
            box-shadow: 0 4px 12px rgba(232, 74, 42, 0.35);
        }

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

        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .news-card .card-meta i {
            color: var(--primary);
            margin-right: 4px;
        }

        .news-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
            transition: var(--transition);
        }

        .news-card h3 a:hover {
            color: var(--primary);
        }

        .news-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        .news-card .card-footer a {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .news-card .card-footer a:hover {
            gap: 10px;
        }

        .news-card .read-time {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .section-more {
            text-align: center;
            margin-top: 48px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 40px;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(232, 74, 42, 0.3);
        }

        /* ===== Data / Stats Section ===== */
        .data-section {
            background: var(--secondary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
            color: #fff;
            padding: 90px 0;
        }

        .data-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 27, 51, 0.9);
        }

        .data-section .grid-container {
            position: relative;
            z-index: 2;
        }

        .data-section .section-header h2 {
            color: #fff;
        }

        .data-section .section-header p {
            color: rgba(255, 255, 255, 0.7);
        }

        .data-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 20px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius);
            padding: 36px 28px;
            text-align: center;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-4px);
        }

        .stat-card .stat-icon {
            font-size: 2rem;
            color: #FF6D4A;
            margin-bottom: 16px;
        }

        .stat-card .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .data-list {
            margin-top: 56px;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(4px);
        }

        .data-list-header {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 0.6fr;
            padding: 16px 28px;
            background: rgba(255, 255, 255, 0.08);
            font-size: 0.82rem;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.6);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .data-list-row {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 0.6fr;
            padding: 18px 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            align-items: center;
            transition: var(--transition);
        }

        .data-list-row:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .data-list-row .rank {
            display: flex;
            align-items: center;
            gap: 14px;
            font-weight: 700;
        }

        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 10px;
            font-size: 0.82rem;
            font-weight: 700;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .rank-badge.top-1 {
            background: linear-gradient(135deg, #FFD700, #F5A623);
            color: #333;
        }

        .rank-badge.top-2 {
            background: linear-gradient(135deg, #C0C0C0, #A8A8A8);
            color: #333;
        }

        .rank-badge.top-3 {
            background: linear-gradient(135deg, #CD7F32, #B87243);
            color: #fff;
        }

        .team-name {
            font-weight: 600;
            color: #fff;
        }

        .match-score {
            font-weight: 800;
            color: #FF6D4A;
            font-size: 1.1rem;
        }

        .match-status {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== Topic Section ===== */
        .topic-section {
            background: var(--bg-white);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .topic-card {
            display: flex;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(232, 74, 42, 0.25);
        }

        .topic-card .topic-thumb {
            width: 180px;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }

        .topic-card .topic-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .topic-card:hover .topic-thumb img {
            transform: scale(1.08);
        }

        .topic-card .topic-body {
            padding: 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .topic-card .topic-tagline {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .topic-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .topic-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        .topic-card .topic-link {
            margin-top: 14px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topic-card .topic-link:hover {
            gap: 10px;
        }

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

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            max-width: 960px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0;
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(232, 74, 42, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 0.98rem;
            font-weight: 600;
            cursor: pointer;
            color: var(--text);
        }

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

        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item .faq-content {
            padding: 0 24px 22px;
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #E84A2A, #FF6D4A);
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -70px;
            right: -70px;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            border: 35px solid rgba(255, 255, 255, 0.1);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -50px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 25px solid rgba(255, 255, 255, 0.12);
        }

        .cta-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            position: relative;
            z-index: 2;
        }

        .cta-text h2 {
            color: #fff;
            font-size: clamp(1.4rem, 2.8vw, 2.1rem);
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-text p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1rem;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            color: var(--primary);
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-white:hover {
            transform: translateY(-4px);
            box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #141B2D;
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: #FF6D4A;
        }

        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            background: #FF6D4A;
            border-radius: 3px;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a:hover {
            color: #FF6D4A;
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            margin-bottom: 12px;
        }

        .footer-contact i {
            color: #FF6D4A;
            width: 20px;
        }

        .copyright {
            padding: 24px 0;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .copyright p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== Focus States ===== */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(232, 74, 42, 0.5);
            outline-offset: 2px;
            border-radius: 6px;
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .intro-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .topic-card .topic-thumb {
                width: 140px;
            }

            .nav-links {
                gap: 0;
            }

            .nav-links a {
                padding: 8px 16px;
                font-size: 0.88rem;
            }
        }

        @media screen and (max-width: 768px) {
            .section-padding {
                padding: 55px 0;
            }

            .nav-inner {
                height: 64px;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
                padding: 16px 24px;
                gap: 6px;
                border-radius: 0 0 16px 16px;
            }

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

            .nav-links a {
                display: block;
                padding: 12px 20px;
                font-size: 0.95rem;
                border-radius: 10px;
            }

            .nav-links a.active {
                background: var(--primary-light);
                color: var(--primary);
                box-shadow: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .category-hero {
                padding: 70px 0 80px;
            }

            .hero-metrics {
                gap: 22px;
                margin-top: 36px;
            }

            .hero-actions .btn-main,
            .hero-actions .btn-ghost {
                padding: 12px 24px;
                font-size: 0.9rem;
            }

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

            .news-card .card-cover-wrap {
                height: 220px;
            }

            .data-list-header {
                display: none;
            }

            .data-list-row {
                grid-template-columns: 1fr 1fr;
                grid-row-gap: 8px;
                padding: 20px 20px;
            }

            .domain-cell {
                display: none;
            }

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

            .topic-card .topic-thumb {
                width: 110px;
            }

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

            .topic-card h3 {
                font-size: 1.05rem;
            }

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

            .cta-wrap {
                flex-direction: column;
                text-align: center;
            }

            .cta-text p {
                margin-bottom: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                row-gap: 36px;
            }
        }

        @media screen and (max-width: 520px) {
            .grid-container {
                padding: 0 16px;
            }

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

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

            .hero-metrics .metric-num {
                font-size: 1.5rem;
            }

            .brand-logo {
                font-size: 1.1rem;
            }

            .topic-card {
                flex-direction: column;
            }

            .topic-card .topic-thumb {
                width: 100%;
                height: 140px;
            }

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

            .data-list-row {
                grid-template-columns: 1fr;
                grid-row-gap: 4px;
                text-align: left;
            }

            .data-list-row .match-score {
                font-size: 1.3rem;
            }

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

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

/* roulang page: article */
:root {
  --primary: #0e6b4f;
  --primary-dark: #084e3a;
  --primary-light: #1e8f6e;
  --accent: #f5a623;
  --accent-dark: #e08e00;
  --bg: #f4f7f5;
  --surface: #ffffff;
  --text: #142824;
  --text-light: #5f7169;
  --border: #e2ece7;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,.05);
  --shadow-md: 0 8px 30px rgba(0,0,0,.09);
  --shadow-lg: 0 16px 50px rgba(0,0,0,.14);
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 96px;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; transition: all .25s ease; }

ul, ol { list-style: none; }

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

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

/* ===== Navbar ===== */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(0,0,0,.04);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.main-nav { width: 100%; }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -.5px;
  white-space: nowrap;
}

.brand-logo i {
  font-size: 26px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-links li { margin: 0; }

.nav-links a {
  display: inline-block;
  padding: 8px 16px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  border-radius: 30px;
  border: 1px solid transparent;
}

.nav-links a:hover {
  color: var(--primary);
  background: rgba(14,107,79,.06);
}

.nav-links a.active {
  color: var(--primary);
  background: rgba(14,107,79,.1);
  border-color: rgba(14,107,79,.15);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 30px;
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 15px rgba(14,107,79,.25);
  transition: all .3s ease;
}

.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(14,107,79,.3);
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
}

/* ===== Page Banner ===== */
.page-banner {
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 90px 0 70px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(8,36,28,.92) 0%, rgba(14,107,79,.82) 55%, rgba(8,36,28,.68) 100%);
}

.page-banner::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, rgba(14,107,79,0), var(--accent), rgba(14,107,79,0));
}

.page-banner-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.banner-tag {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 40px;
  color: #fff;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: 1px;
  backdrop-filter: blur(6px);
  margin-bottom: 20px;
}

.page-banner h1 {
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin: 0 0 18px;
  letter-spacing: -.5px;
  text-shadow: 0 2px 24px rgba(0,0,0,.25);
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: .9rem;
  color: rgba(255,255,255,.85);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

/* ===== Article Section ===== */
.article-section {
  padding: var(--space-lg) 0;
  background: var(--bg);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 40px;
  align-items: start;
}

.article-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 40px;
  border: 1px solid var(--border);
  transition: box-shadow .3s ease;
}

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

.article-body { font-size: 1.05rem; line-height: 1.9; color: #27372f; }

.article-body p { margin-bottom: 1.4em; }

.article-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  margin: 1.8em 0 .7em;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin: 1.5em 0 .5em;
}

.article-body img {
  border-radius: var(--radius);
  margin: 20px 0;
  box-shadow: var(--shadow-sm);
}

.article-body ul {
  margin: 1em 0 1.4em;
  padding-left: 0;
}

.article-body ul li {
  position: relative;
  padding: 8px 0 8px 26px;
  border-bottom: 1px dashed var(--border);
}

.article-body ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.article-body blockquote {
  margin: 1.8em 0;
  padding: 22px 28px;
  background: rgba(14,107,79,.06);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-weight: 600;
  color: var(--primary-dark);
}

.article-body strong { color: var(--text); font-weight: 700; }

.article-tags {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(14,107,79,.08);
  color: var(--primary);
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 600;
}

.not-found {
  text-align: center;
  padding: 60px 40px;
}

.not-found h2 {
  font-size: 2rem;
  color: var(--text);
  margin-bottom: 12px;
}

.not-found p {
  color: var(--text-light);
  margin-bottom: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 30px;
  font-size: .95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .3s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(14,107,79,.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(14,107,79,.35);
  color: #fff;
}

/* ===== Sidebar ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.sidebar-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-card h3 i {
  color: var(--primary);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sidebar-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-size: .92rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-list li:last-child { border-bottom: none; }

.sidebar-list li i {
  color: var(--accent);
  font-size: .85rem;
}

.sidebar-list li a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.sidebar-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(14,107,79,.07);
  border: 1px solid transparent;
  border-radius: 24px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--primary);
  transition: all .3s ease;
}

.cat-pill:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.sidebar-cta {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.sidebar-cta::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  background: rgba(255,255,255,.08);
  border-radius: 50%;
}

.sidebar-cta h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.sidebar-cta p {
  font-size: .9rem;
  opacity: .85;
  margin-bottom: 20px;
  line-height: 1.6;
}

.sidebar-cta .btn-accent {
  background: var(--accent);
  color: #142824;
  padding: 10px 24px;
  border-radius: 24px;
  font-size: .88rem;
  font-weight: 700;
  transition: all .3s ease;
  border: none;
  cursor: pointer;
}

.sidebar-cta .btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(245,166,35,.4);
}

/* ===== Related Section ===== */
.related-section {
  padding: var(--space-lg) 0;
  background: var(--surface);
}

.section-head {
  text-align: center;
  margin-bottom: 44px;
}

.section-head h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}

.section-head p {
  color: var(--text-light);
  font-size: 1rem;
}

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

.related-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all .35s ease;
}

.related-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.related-img {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

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

.related-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(14,107,79,.9);
  backdrop-filter: blur(4px);
  color: #fff;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  z-index: 2;
}

.related-body {
  padding: 24px;
}

.related-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
}

.related-body h3 a:hover { color: var(--primary); }

.related-body p {
  font-size: .88rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.related-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: .78rem;
  color: var(--text-light);
}

/* ===== CTA Section ===== */
.cta-section.deep-bg {
  background: linear-gradient(135deg, #0a2e24 0%, #0e6b4f 60%, #139a70 100%);
  padding: var(--space-xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section.deep-bg::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,.06);
  border-radius: 50%;
}

.cta-section.deep-bg::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 30px;
  width: 160px;
  height: 160px;
  background: rgba(245,166,35,.12);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.3;
}

.cta-inner p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.8);
  margin-bottom: 32px;
}

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

.btn-accent {
  background: var(--accent);
  color: #142824;
  padding: 14px 32px;
  border-radius: 30px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  box-shadow: 0 4px 18px rgba(245,166,35,.35);
}

.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-3px);
  color: #142824;
  box-shadow: 0 8px 30px rgba(245,166,35,.45);
}

.btn-outline {
  background: transparent;
  color: #fff;
  padding: 13px 32px;
  border-radius: 30px;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,.6);
  cursor: pointer;
  transition: all .3s ease;
}

.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
  color: #fff;
  transform: translateY(-3px);
}

/* ===== Footer ===== */
.site-footer {
  background: #0c1a16;
  color: rgba(255,255,255,.75);
  padding: var(--space-lg) 0 0;
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
}

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

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand i {
  color: var(--accent);
}

.footer-col p {
  font-size: .9rem;
  line-height: 1.7;
  opacity: .75;
  margin-bottom: 10px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

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

.footer-links a {
  font-size: .9rem;
  opacity: .75;
  transition: all .25s ease;
  display: inline-block;
}

.footer-links a:hover {
  color: var(--accent);
  opacity: 1;
  padding-left: 6px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-size: .88rem;
  opacity: .75;
}

.footer-contact i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}

.copyright {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  text-align: center;
  font-size: .85rem;
  opacity: .6;
}

.copyright p { margin: 0; }

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
  }

  .article-card { padding: 32px; }

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

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

@media screen and (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    padding: 16px 24px;
    box-shadow: 0 8px 30px rgba(0,0,0,.12);
    border-bottom: 1px solid var(--border);
    gap: 4px;
  }

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

  .nav-links a {
    display: block;
    text-align: center;
    padding: 12px 20px;
  }

  .nav-cta { display: none; }

  .nav-toggle { display: flex; }

  .page-banner { padding: 60px 0 48px; }

  .page-banner h1 { font-size: 1.7rem; }

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

  .article-sidebar { flex-direction: row; flex-wrap: wrap; }

  .sidebar-card { flex: 1 1 calc(50% - 12px); min-width: 240px; }

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

  .cta-inner h2 { font-size: 1.6rem; }

  .cta-actions { flex-direction: column; align-items: center; }

  .btn-accent, .btn-outline { width: 100%; max-width: 280px; text-align: center; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }

  .grid-container { padding: 0 20px; }
}

@media screen and (max-width: 520px) {
  .brand-logo { font-size: 1.05rem; }

  .brand-logo i { font-size: 20px; }

  .page-banner h1 { font-size: 1.4rem; }

  .article-card { padding: 24px 18px; }

  .article-meta { gap: 14px; font-size: .82rem; }

  .article-body { font-size: .98rem; }

  .article-body h2 { font-size: 1.3rem; }

  .sidebar-card { flex: 1 1 100%; }

  .section-head h2 { font-size: 1.5rem; }

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

  .nav-links a { font-size: .95rem; }
}

/* ===== Focus Accessibility ===== */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(245,166,35,.6);
  outline-offset: 2px;
}

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-dark: #b02a35;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-dark: #0f1923;
            --bg-deep: #0a1118;
            --surface: #ffffff;
            --text: #212529;
            --text-light: #6c757d;
            --border: #e9ecef;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", Roboto, "Helvetica Neue", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            line-height: 1.7;
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

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

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
        }

        .main-nav {
            width: 100%;
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text);
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }

        .brand-logo i {
            color: var(--primary);
            font-size: 1.5rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 32px;
            margin: 0;
            padding: 0;
            flex: 1;
            justify-content: center;
        }

        .nav-links a {
            font-weight: 500;
            color: var(--text);
            position: relative;
            padding: 8px 0;
            font-size: 0.95rem;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
            border-radius: 2px;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--primary);
        }

        .nav-links a.active::after {
            width: 100%;
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(230, 57, 70, 0.45);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
            z-index: 1002;
        }

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-deep) 60%, var(--secondary) 100%);
            color: #fff;
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(244,162,97,0.2), transparent 70%);
            border-radius: 50%;
        }

        .page-banner .grid-container {
            position: relative;
            z-index: 2;
        }

        .banner-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.25);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.82rem;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
            letter-spacing: 0.05em;
        }

        .page-banner h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            max-width: 700px;
            letter-spacing: -0.02em;
        }

        .page-banner h1 span {
            color: var(--primary-light);
            position: relative;
        }

        .page-banner p {
            font-size: 1.15rem;
            opacity: 0.85;
            max-width: 600px;
            line-height: 1.8;
        }

        .banner-stats {
            display: flex;
            gap: 48px;
            margin-top: 40px;
            flex-wrap: wrap;
        }

        .banner-stat {
            text-align: left;
        }

        .banner-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            display: block;
        }

        .banner-stat .label {
            font-size: 0.85rem;
            opacity: 0.6;
            margin-top: 4px;
        }

        /* ===== Section common ===== */
        .section {
            padding: 100px 0;
        }

        .section-sm {
            padding: 64px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 64px;
        }

        .section-head h2 {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }

        .section-head h2 span {
            color: var(--primary);
        }

        .section-head p {
            color: var(--text-light);
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .section-eyebrow {
            display: inline-block;
            background: linear-gradient(135deg, rgba(230,57,70,0.12), rgba(230,57,70,0.06));
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .bg-light-blue {
            background: #f0f4fa;
        }

        .bg-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .bg-dark .section-head h2 {
            color: #fff;
        }

        .bg-dark .section-head p {
            color: rgba(255,255,255,0.65);
        }

        /* ===== Category Tabs ===== */
        .category-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .cat-tab {
            padding: 10px 24px;
            border-radius: 30px;
            background: var(--surface);
            border: 1px solid var(--border);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            cursor: pointer;
            transition: var(--transition);
        }

        .cat-tab:hover, .cat-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(230,57,70,0.3);
        }

        /* ===== Cards Grid ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .card-item {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.04);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }

        .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .card-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4/3;
            background: #eef1f5;
        }

        .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .card-cat {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255,255,255,0.92);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            backdrop-filter: blur(8px);
            z-index: 2;
        }

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

        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
            color: var(--text);
        }

        .card-body h3 a:hover {
            color: var(--primary);
        }

        .card-body p {
            color: var(--text-light);
            font-size: 0.92rem;
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .card-meta span {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .card-meta .btn-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
        }

        .card-meta .btn-link:hover {
            color: var(--primary-dark);
        }

        /* ===== Feature Split ===== */
        .feature-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .feature-img {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 400px;
        }

        .feature-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.35), transparent 50%);
        }

        .feature-content h2 {
            font-size: 2.1rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.3;
            color: var(--text);
        }

        .feature-content h2 span {
            color: var(--primary);
        }

        .feature-content p {
            color: var(--text-light);
            font-size: 1.05rem;
            line-height: 1.9;
            margin-bottom: 24px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            color: var(--text);
            font-size: 0.98rem;
        }

        .feature-list li i {
            color: var(--primary);
            margin-top: 5px;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        /* ===== Timeline / Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-card {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius);
            padding: 36px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .step-card:hover {
            background: rgba(255,255,255,0.09);
            border-color: rgba(255,255,255,0.2);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 3rem;
            font-weight: 800;
            color: transparent;
            -webkit-text-stroke: 1.5px rgba(230,57,70,0.7);
            margin-bottom: 16px;
            line-height: 1;
        }

        .step-card h3 {
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-card p {
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ===== Data Blocks ===== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .data-block {
            text-align: center;
            padding: 40px 24px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .data-block .num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
            display: block;
        }

        .data-block .unit {
            font-size: 1rem;
            font-weight: 400;
            color: var(--text-light);
        }

        .data-block .label {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-top: 8px;
        }

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

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(230,57,70,0.3);
            box-shadow: 0 4px 14px rgba(0,0,0,0.05);
        }

        .faq-q {
            padding: 22px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            gap: 16px;
        }

        .faq-q i {
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-q i {
            transform: rotate(45deg);
        }

        .faq-a {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.active .faq-a {
            padding: 0 28px 22px;
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%);
            border-radius: var(--radius);
            padding: 70px 60px;
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }

        .cta-block .grid-container {
            position: relative;
            z-index: 2;
        }

        .cta-block h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-block p {
            opacity: 0.85;
            font-size: 1.1rem;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-btn {
            display: inline-block;
            background: #fff;
            color: var(--primary);
            padding: 14px 38px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
            transition: var(--transition);
        }

        .cta-btn:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 8px 30px rgba(0,0,0,0.3);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255,255,255,0.7);
            padding: 70px 0 30px;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
            opacity: 0.7;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 50px;
            margin-bottom: 50px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: var(--primary-light);
        }

        .footer-col p {
            color: rgba(255,255,255,0.5);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: rgba(255,255,255,0.55);
            font-size: 0.92rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 6px;
        }

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
        }

        .footer-contact li i {
            color: var(--primary-light);
            width: 18px;
            text-align: center;
        }

        .copyright {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 30px;
            text-align: center;
        }

        .copyright p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

        @media screen and (max-width: 768px) {
            .page-banner {
                padding: 80px 0 60px;
            }

            .page-banner h1 {
                font-size: 2.2rem;
            }

            .section {
                padding: 64px 0;
            }

            .section-head h2 {
                font-size: 1.8rem;
            }

            .feature-split {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .feature-img img {
                min-height: 280px;
            }

            .cta-block {
                padding: 50px 24px;
            }

            .cta-block h2 {
                font-size: 1.6rem;
            }

            .nav-inner {
                height: 64px;
            }

            .nav-links {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--surface);
                flex-direction: column;
                align-items: center;
                padding: 30px 20px;
                gap: 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                z-index: 999;
            }

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

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .banner-stats {
                gap: 24px;
            }

            .banner-stat .num {
                font-size: 1.5rem;
            }
        }

        @media screen and (max-width: 520px) {
            .grid-container {
                padding: 0 16px;
            }

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

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

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

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

            .page-banner h1 {
                font-size: 1.8rem;
            }

            .feature-split {
                gap: 24px;
            }

            .cat-tab {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }

        /* ===== Fade Animations ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }