/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #e74c3c;
            --color-primary-dark: #c0392b;
            --color-primary-light: #fdf2f2;
            --color-secondary: #2c3e50;
            --color-secondary-light: #34495e;
            --color-accent: #f39c12;
            --color-bg: #ffffff;
            --color-bg-alt: #f8f9fa;
            --color-bg-dark: #1a1a2e;
            --color-text: #1a1a2e;
            --color-text-light: #6c757d;
            --color-text-white: #ffffff;
            --color-border: #e9ecef;
            --color-border-light: #f0f0f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --container-padding: 24px;
            --nav-height: 72px;
            --space-section: 80px;
            --space-block: 48px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--color-text); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2.2rem; margin-bottom: 16px; }
        h3 { font-size: 1.4rem; margin-bottom: 12px; }
        h4 { font-size: 1.15rem; margin-bottom: 8px; }
        p { margin-bottom: 16px; color: var(--color-text-light); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .container-full { width: 100%; padding: 0 var(--container-padding); }
        section { padding: var(--space-section) 0; }
        .section-title {
            text-align: center;
            margin-bottom: var(--space-block);
        }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--color-primary);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p { font-size: 1.1rem; max-width: 600px; margin: 8px auto 0; }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-md);
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff !important;
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(231,76,60,0.3);
        }
        .btn-primary:focus-visible { outline: 3px solid var(--color-primary); outline-offset: 3px; }
        .btn-secondary {
            background: transparent;
            color: var(--color-primary) !important;
            border-color: var(--color-primary);
        }
        .btn-secondary:hover {
            background: var(--color-primary);
            color: #fff !important;
            transform: translateY(-2px);
        }
        .btn-white {
            background: #fff;
            color: var(--color-primary) !important;
            border-color: #fff;
        }
        .btn-white:hover {
            background: var(--color-primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255,255,255,0.2);
        }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius-lg); }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: var(--radius-sm); }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .logo {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo i { font-size: 1.4rem; }
        .logo span { color: var(--color-secondary); }
        .nav-main { display: flex; align-items: center; gap: 32px; }
        .nav-main a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            position: relative;
            padding: 4px 0;
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-main a:hover::after,
        .nav-main a.active::after { width: 100%; }
        .nav-main a.active { color: var(--color-primary); font-weight: 600; }
        .nav-cta .btn { padding: 10px 24px; font-size: 0.9rem; }
        .nav-toggle { display: none; font-size: 1.6rem; color: var(--color-text); padding: 4px; }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-main {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 16px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .nav-main.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-main a { font-size: 1.1rem; padding: 8px 0; width: 100%; }
            .nav-cta { margin-top: 8px; width: 100%; }
            .nav-cta .btn { width: 100%; justify-content: center; }
            .nav-toggle { display: block; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            padding-top: var(--nav-height);
            background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.25;
            z-index: 1;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(231,76,60,0.08) 0%, transparent 70%);
            z-index: 2;
        }
        .hero .container {
            position: relative;
            z-index: 3;
            width: 100%;
            padding: 60px var(--container-padding);
        }
        .hero-content { max-width: 720px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(231,76,60,0.15);
            border: 1px solid rgba(231,76,60,0.3);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #f5a5a5;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { color: var(--color-primary); }
        .hero h1 {
            font-size: 3.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 .highlight { color: var(--color-primary); }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        .hero-stat { text-align: left; }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat .num i { color: var(--color-primary); font-size: 1.2rem; margin-right: 4px; }
        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            font-weight: 400;
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.4rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat .num { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.9rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
        }

        /* ===== 板块通用 ===== */
        .bg-alt { background: var(--color-bg-alt); }
        .bg-dark { background: var(--color-bg-dark); color: var(--color-text-white); }
        .bg-dark .section-title h2 { color: #fff; }
        .bg-dark .section-title p { color: rgba(255,255,255,0.65); }
        .bg-dark .section-title h2::after { background: var(--color-accent); }

        /* ===== 核心服务 / 分类入口 ===== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: var(--transition);
            text-align: center;
        }
        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
        }
        .service-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .service-card:hover .icon { background: var(--color-primary); color: #fff; }
        .service-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
        .service-card p { font-size: 0.92rem; margin-bottom: 0; }
        .service-card .tag {
            display: inline-block;
            padding: 2px 14px;
            border-radius: 50px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            margin-top: 12px;
        }
        @media (max-width: 768px) {
            .service-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .service-grid { grid-template-columns: 1fr; }
        }

        /* ===== 分类入口卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: var(--transition);
            display: block;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .category-card .cat-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .category-card .cat-body {
            padding: 20px 22px 24px;
        }
        .category-card .cat-body h3 { font-size: 1.1rem; margin-bottom: 4px; }
        .category-card .cat-body p { font-size: 0.88rem; margin-bottom: 0; color: var(--color-text-light); }
        .category-card .cat-count {
            display: inline-block;
            font-size: 0.78rem;
            color: var(--color-text-light);
            background: var(--color-bg-alt);
            padding: 2px 12px;
            border-radius: 50px;
            margin-top: 10px;
        }
        @media (max-width: 768px) {
            .category-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .category-grid { grid-template-columns: 1fr; }
        }

        /* ===== 资讯列表 ===== */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary);
            transform: translateX(4px);
        }
        .news-item .news-thumb {
            width: 160px;
            height: 100px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-item .news-info { flex: 1; min-width: 0; }
        .news-item .news-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 6px;
            transition: var(--transition);
        }
        .news-item:hover .news-info h4 { color: var(--color-primary); }
        .news-item .news-info p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--color-text-light);
        }
        .news-meta .cat {
            padding: 2px 12px;
            border-radius: 50px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.75rem;
        }
        .news-meta .date i { margin-right: 4px; }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--color-text-light);
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }
        .news-empty i { font-size: 2.4rem; color: var(--color-border); margin-bottom: 12px; display: block; }
        @media (max-width: 640px) {
            .news-item { flex-direction: column; padding: 16px; }
            .news-item .news-thumb { width: 100%; height: 180px; }
        }

        /* ===== 数据 / 流程 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255,255,255,0.05);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.1);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
        .stat-card .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-card .num i { color: var(--color-accent); font-size: 1.4rem; margin-right: 4px; }
        .stat-card .label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .stats-grid { grid-template-columns: 1fr; }
        }

        /* ===== 路径 / 流程步骤 ===== */
        .steps {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        .steps::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--color-border);
            border-radius: 4px;
        }
        .step {
            display: flex;
            gap: 28px;
            align-items: flex-start;
            padding-bottom: 36px;
            position: relative;
        }
        .step:last-child { padding-bottom: 0; }
        .step .step-num {
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            flex-shrink: 0;
            position: relative;
            z-index: 2;
            box-shadow: 0 0 0 4px #fff, 0 4px 16px rgba(231,76,60,0.2);
        }
        .step .step-content { flex: 1; padding-top: 6px; }
        .step .step-content h4 { font-size: 1.15rem; margin-bottom: 4px; }
        .step .step-content p { font-size: 0.92rem; margin-bottom: 0; }
        .bg-alt .step .step-num { box-shadow: 0 0 0 4px var(--color-bg-alt), 0 4px 16px rgba(231,76,60,0.2); }
        @media (max-width: 640px) {
            .steps::before { left: 20px; }
            .step .step-num { width: 44px; height: 44px; font-size: 1rem; }
            .step { gap: 16px; }
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--color-primary); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            gap: 12px;
            user-select: none;
        }
        .faq-question i { color: var(--color-primary); transition: var(--transition); font-size: 1.1rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            padding: 72px 0;
            text-align: center;
        }
        .cta-section h2 { color: #fff; margin-bottom: 12px; }
        .cta-section h2::after { background: rgba(255,255,255,0.4); }
        .cta-section p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 560px; margin: 0 auto 28px; }
        .cta-section .btn-white:hover { background: var(--color-primary-light); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 52px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: var(--color-primary); margin-bottom: 12px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand p { font-size: 0.92rem; color: rgba(255,255,255,0.5); max-width: 320px; }
        .footer-col h4 {
            font-size: 1rem;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--color-primary); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--color-primary); }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-brand p { max-width: 100%; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-12 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式辅助 ===== */
        @media (max-width: 1024px) {
            :root { --space-section: 60px; --space-block: 36px; }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            :root { --space-section: 48px; --space-block: 28px; --container-padding: 16px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            :root { --space-section: 36px; }
            h1 { font-size: 1.6rem; }
            h2 { font-size: 1.3rem; }
            .section-title p { font-size: 0.95rem; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --primary-gradient: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
            --secondary: #1d3557;
            --secondary-light: #2d4a7a;
            --accent: #f4a261;
            --accent-light: #f9c784;
            --bg-dark: #0f1a2e;
            --bg-darker: #0b1423;
            --bg-card: #ffffff;
            --bg-body: #f8f9fc;
            --bg-section-alt: #f0f2f8;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border-color: #e2e6ef;
            --border-light: #f0f2f8;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --shadow-hover: 0 16px 48px rgba(230, 57, 70, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            padding-top: var(--header-height);
        }

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

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

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

        a:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }

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

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 26, 46, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: rgba(15, 26, 46, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 26px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
            flex-shrink: 0;
        }

        .logo:hover {
            opacity: 0.9;
            color: var(--text-white);
        }

        .logo i {
            color: var(--primary);
            font-size: 28px;
            background: rgba(230, 57, 70, 0.15);
            padding: 8px;
            border-radius: 10px;
            transition: transform var(--transition);
        }

        .logo:hover i {
            transform: scale(1.05) rotate(-5deg);
        }

        .logo span {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-main a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 10px;
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }

        .nav-main a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-main a.active {
            color: var(--text-white);
            background: rgba(230, 57, 70, 0.2);
        }

        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 10px;
        }

        .nav-cta {
            margin-left: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.2;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
            color: var(--text-white);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(230, 57, 70, 0.3);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(4px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 16px 38px;
            font-size: 17px;
            border-radius: 14px;
        }

        .nav-toggle {
            display: none;
            color: var(--text-white);
            font-size: 24px;
            padding: 8px 12px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            transform: scale(1.05);
            animation: bannerZoom 20s ease-in-out infinite alternate;
        }

        @keyframes bannerZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.15);
            }
        }

        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.92) 0%, rgba(15, 26, 46, 0.7) 50%, rgba(230, 57, 70, 0.3) 100%);
            z-index: 1;
        }

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

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230, 57, 70, 0.2);
            border: 1px solid rgba(230, 57, 70, 0.3);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .banner-badge i {
            font-size: 14px;
        }

        .page-banner h1 {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-white);
            max-width: 700px;
            line-height: 1.15;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .page-banner h1 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .banner-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 10px;
        }

        .banner-stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .banner-stat-item .number {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1;
        }

        .banner-stat-item .number small {
            font-size: 16px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
            margin-left: 4px;
        }

        .banner-stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            font-weight: 400;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

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

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

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

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

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .section-label i {
            font-size: 14px;
        }

        /* ===== Hot Categories / Tabs ===== */
        .hot-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-bottom: 40px;
        }

        .hot-tab {
            padding: 10px 26px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
            box-shadow: var(--shadow-sm);
        }

        .hot-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .hot-tab.active {
            background: var(--primary-gradient);
            color: var(--text-white);
            border-color: transparent;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }

        .hot-tab i {
            margin-right: 6px;
            font-size: 14px;
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }

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

        .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-dark);
        }

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

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

        .card-image .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary-gradient);
            color: var(--text-white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }

        .card-image .badge-hot {
            background: linear-gradient(135deg, #f4a261, #e76f51);
        }

        .card-image .overlay-link {
            position: absolute;
            inset: 0;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.3);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .card:hover .overlay-link {
            opacity: 1;
        }

        .card-image .overlay-link .btn-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            transform: scale(0.8);
            transition: transform var(--transition);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }

        .card:hover .overlay-link .btn-circle {
            transform: scale(1);
        }

        .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body .meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .card-body .meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .card-body .meta i {
            font-size: 12px;
        }

        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.35;
        }

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

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

        .card-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 16px;
        }

        .card-body .card-footer-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap var(--transition);
        }

        .card-body .card-footer-link:hover {
            gap: 12px;
            color: var(--primary-dark);
        }

        /* ===== Featured / List Layout ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .featured-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .featured-card .card-image {
            aspect-ratio: 21 / 9;
        }

        .featured-card .card-body {
            padding: 24px 28px 28px;
        }

        .featured-card .card-body h3 {
            font-size: 22px;
        }

        .featured-card .card-body p {
            font-size: 16px;
        }

        /* ===== Data / Stats Section ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(230, 57, 70, 0.3);
        }

        .stat-card .icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 14px;
            background: rgba(230, 57, 70, 0.12);
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .stat-card .number {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-card .label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 400;
        }

        /* ===== Content List ===== */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-card);
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
        }

        .list-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
        }

        .list-item .rank {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--bg-section-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .list-item:hover .rank {
            background: var(--primary);
            color: var(--text-white);
        }

        .list-item .rank.top {
            background: var(--primary-gradient);
            color: var(--text-white);
        }

        .list-item .content {
            flex: 1;
        }

        .list-item .content h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .list-item .content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .list-item .meta-tag {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .list-item .meta-tag i {
            font-size: 12px;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: color var(--transition);
        }

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

        .faq-question i {
            font-size: 16px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.95) 0%, rgba(230, 57, 70, 0.2) 100%);
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 24px;
        }

        .footer-brand p {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: all var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom span {
            opacity: 0.8;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 38px;
            }
            .section-header h2 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 66px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .logo {
                font-size: 22px;
            }
            .logo i {
                font-size: 22px;
                padding: 6px;
            }
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s ease;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                pointer-events: none;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 18px;
                font-size: 16px;
                border-radius: 10px;
            }
            .nav-main a.active::after {
                display: none;
            }
            .nav-main a.active {
                background: rgba(230, 57, 70, 0.2);
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
            }
            .nav-cta .btn {
                width: 100%;
                justify-content: center;
            }
            .nav-toggle {
                display: block;
            }
            .page-banner {
                padding: 70px 0 50px;
                min-height: 300px;
            }
            .page-banner h1 {
                font-size: 30px;
            }
            .page-banner p {
                font-size: 16px;
            }
            .banner-stats {
                gap: 24px;
            }
            .banner-stat-item .number {
                font-size: 26px;
            }
            .section {
                padding: 50px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-card .number {
                font-size: 28px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .featured-card .card-body {
                padding: 18px 20px 22px;
            }
            .featured-card .card-body h3 {
                font-size: 19px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hot-tabs {
                gap: 8px;
            }
            .hot-tab {
                padding: 8px 18px;
                font-size: 13px;
            }
            .list-item {
                padding: 16px 18px;
                flex-wrap: wrap;
                gap: 12px;
            }
            .list-item .meta-tag {
                width: 100%;
                font-size: 12px;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 16px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 26px;
            }
            .banner-stats {
                gap: 16px;
                flex-direction: column;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card .number {
                font-size: 24px;
            }
            .stat-card .icon {
                width: 48px;
                height: 48px;
                font-size: 24px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .card-body h3 {
                font-size: 17px;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer p {
                font-size: 14px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
        }

/* roulang page: article */
:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --secondary: #f97316;
    --secondary-hover: #ea580c;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --bg: #f1f5f9;
    --bg-card: #ffffff;
    --bg-dark: #0f172a;
    --text: #1e293b;
    --text-light: #64748b;
    --text-white: #f8fafc;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --max-width: 1200px;
    --header-h: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-title{font-size:32px;font-weight:800;margin-bottom:12px;letter-spacing:-0.5px;color:var(--primary)}
.section-sub{font-size:18px;color:var(--text-light);margin-bottom:48px;max-width:680px}
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 32px;border-radius:var(--radius-sm);font-weight:600;font-size:16px;border:none;cursor:pointer;transition:all var(--transition);text-decoration:none;line-height:1.2}
.btn-primary{background:var(--secondary);color:#fff;box-shadow:0 4px 14px rgba(249,115,22,0.35)}
.btn-primary:hover{background:var(--secondary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(249,115,22,0.4)}
.btn-outline{background:transparent;color:var(--text-white);border:2px solid rgba(255,255,255,0.3)}
.btn-outline:hover{background:rgba(255,255,255,0.12);border-color:var(--text-white);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 22px;font-size:14px;gap:8px}
.btn-lg{padding:18px 42px;font-size:18px;border-radius:var(--radius)}
.badge{display:inline-block;padding:4px 14px;border-radius:20px;font-size:13px;font-weight:500;background:rgba(59,130,246,0.1);color:var(--accent);transition:all var(--transition)}
.badge:hover{background:var(--accent);color:#fff}
.card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:all var(--transition)}
.card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.card-img{width:100%;height:200px;object-fit:cover;display:block}
.card-body{padding:22px}
.card-body h3{font-size:18px;font-weight:700;margin-bottom:8px;line-height:1.4}
.card-body p{font-size:15px;color:var(--text-light);line-height:1.6}
/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(15,23,42,0.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,0.06);height:var(--header-h)}
.header-inner{max-width:var(--max-width);margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:800;color:var(--text-white);text-decoration:none;letter-spacing:-0.5px}
.logo i{color:var(--secondary);font-size:22px}
.logo span{color:var(--secondary)}
.logo:hover{color:var(--text-white)}
.nav-main{display:flex;align-items:center;gap:8px}
.nav-main a:not(.btn){padding:8px 18px;color:rgba(255,255,255,0.7);font-size:15px;font-weight:500;border-radius:var(--radius-sm);transition:all var(--transition);text-decoration:none}
.nav-main a:not(.btn):hover{color:#fff;background:rgba(255,255,255,0.08)}
.nav-main a:not(.btn).active{color:#fff;background:rgba(255,255,255,0.12)}
.nav-cta{margin-left:12px}
.nav-toggle{display:none;background:none;border:none;color:var(--text-white);font-size:24px;cursor:pointer;padding:8px}
/* article banner */
.article-banner{position:relative;padding:100px 0 80px;background:var(--primary);overflow:hidden}
.article-banner-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:0.2;pointer-events:none}
.article-banner .container{position:relative;z-index:2}
.article-bread{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,0.6);margin-bottom:24px;flex-wrap:wrap}
.article-bread a{color:rgba(255,255,255,0.7);text-decoration:none}
.article-bread a:hover{color:#fff}
.article-bread span{color:rgba(255,255,255,0.4)}
.article-banner .badge-cat{display:inline-block;padding:6px 18px;background:var(--secondary);color:#fff;border-radius:20px;font-size:14px;font-weight:600;margin-bottom:20px}
.article-banner h1{font-size:42px;font-weight:800;color:#fff;line-height:1.25;margin-bottom:16px;letter-spacing:-0.5px;max-width:860px}
.article-meta{display:flex;align-items:center;gap:24px;flex-wrap:wrap;color:rgba(255,255,255,0.7);font-size:15px}
.article-meta i{margin-right:6px;color:var(--secondary)}
/* article main */
.article-main{padding:60px 0 80px}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:48px}
.article-content{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:48px;overflow:hidden}
.article-content .featured-img{width:100%;border-radius:var(--radius);margin-bottom:32px;max-height:480px;object-fit:cover}
.article-body{font-size:17px;line-height:1.9;color:var(--text)}
.article-body p{margin-bottom:20px}
.article-body h2{font-size:26px;font-weight:700;margin:40px 0 16px;color:var(--primary)}
.article-body h3{font-size:21px;font-weight:600;margin:32px 0 12px;color:var(--primary-light)}
.article-body ul,.article-body ol{padding-left:24px;margin-bottom:20px}
.article-body li{margin-bottom:8px;list-style:disc}
.article-body blockquote{border-left:4px solid var(--secondary);padding:16px 24px;margin:24px 0;background:rgba(249,115,22,0.05);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-light);font-style:italic}
.article-body img{border-radius:var(--radius);margin:24px 0;width:100%}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.article-body a:hover{color:var(--accent-hover)}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--border)}
.article-tags .tag{display:inline-block;padding:6px 16px;background:var(--bg);color:var(--text-light);border-radius:20px;font-size:14px;transition:all var(--transition)}
.article-tags .tag:hover{background:var(--accent);color:#fff}
.article-share{display:flex;align-items:center;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--border)}
.article-share span{font-size:15px;font-weight:600;color:var(--text-light)}
.article-share a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--bg);color:var(--text-light);transition:all var(--transition);font-size:16px}
.article-share a:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}
/* sidebar */
.article-sidebar{display:flex;flex-direction:column;gap:32px}
.sidebar-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:28px;position:sticky;top:calc(var(--header-h) + 24px)}
.sidebar-card h3{font-size:18px;font-weight:700;margin-bottom:20px;color:var(--primary);display:flex;align-items:center;gap:10px}
.sidebar-card h3 i{color:var(--secondary)}
.sidebar-list{display:flex;flex-direction:column;gap:12px}
.sidebar-item{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--border-light);transition:all var(--transition)}
.sidebar-item:last-child{border-bottom:none;padding-bottom:0}
.sidebar-item:hover{opacity:0.8}
.sidebar-item-img{width:70px;height:70px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}
.sidebar-item-info{flex:1;min-width:0}
.sidebar-item-info h4{font-size:15px;font-weight:600;line-height:1.4;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sidebar-item-info .meta{font-size:13px;color:var(--text-light)}
/* related */
.related-section{background:var(--bg);padding:60px 0 80px}
.related-section .section-title{font-size:28px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:all var(--transition);text-decoration:none;color:inherit;display:block}
.related-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);color:inherit}
.related-card img{width:100%;height:180px;object-fit:cover}
.related-card .body{padding:20px}
.related-card .body h4{font-size:17px;font-weight:700;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .body p{font-size:14px;color:var(--text-light);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .body .meta{font-size:13px;color:var(--text-light);margin-top:8px;display:flex;align-items:center;gap:6px}
/* not found */
.not-found{text-align:center;padding:100px 0}
.not-found i{font-size:64px;color:var(--text-light);margin-bottom:24px}
.not-found h2{font-size:32px;font-weight:800;margin-bottom:12px;color:var(--primary)}
.not-found p{font-size:18px;color:var(--text-light);margin-bottom:32px}
/* footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,0.7);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo{font-size:22px;margin-bottom:16px;display:inline-flex}
.footer-brand p{font-size:15px;line-height:1.8;max-width:360px}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px}
.footer-col a{display:block;color:rgba(255,255,255,0.6);font-size:15px;padding:5px 0;transition:all var(--transition);text-decoration:none}
.footer-col a:hover{color:var(--secondary);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:14px;color:rgba(255,255,255,0.4)}
/* responsive */
@media(max-width:1024px){
    .article-layout{grid-template-columns:1fr}
    .article-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .sidebar-card{position:static}
    .related-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
    .section{padding:56px 0}
    .section-title{font-size:26px}
    .article-banner h1{font-size:28px}
    .article-banner{padding:72px 0 56px}
    .article-content{padding:28px}
    .article-body{font-size:16px}
    .grid-3,.grid-2,.related-grid{grid-template-columns:1fr;gap:20px}
    .article-sidebar{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
    .nav-main{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:rgba(15,23,42,0.98);backdrop-filter:blur(12px);flex-direction:column;padding:16px 24px 24px;border-bottom:1px solid rgba(255,255,255,0.06);gap:4px}
    .nav-main.open{display:flex}
    .nav-main a:not(.btn){padding:12px 16px;width:100%}
    .nav-cta{margin-left:0;margin-top:8px;width:100%}
    .nav-cta .btn{width:100%;justify-content:center}
    .nav-toggle{display:block}
    .footer-bottom{flex-direction:column;text-align:center}
    .article-meta{flex-direction:column;gap:12px;align-items:flex-start}
    .container{padding:0 16px}
}
@media(max-width:520px){
    .article-banner h1{font-size:24px}
    .article-content{padding:20px}
    .article-body{font-size:15px}
    .section-title{font-size:22px}
    .footer-grid{grid-template-columns:1fr;gap:20px}
    .related-card img{height:160px}
}