/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #c9252b;
            --primary-dark: #a01e23;
            --primary-light: #fbe5e6;
            --secondary: #1a1a2e;
            --secondary-light: #2d2d4a;
            --accent: #d4a843;
            --accent-light: #f5e8c8;
            --bg-white: #ffffff;
            --bg-light: #f8f6f3;
            --bg-dark: #0f0f1a;
            --text-dark: #1a1a2e;
            --text-body: #3d3d4a;
            --text-muted: #7a7a8a;
            --text-white: #ffffff;
            --border-light: #e8e4e0;
            --border-focus: #c9252b;
            --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 8px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-hover: 0 12px 36px rgba(201,37,43,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ========== 基础 Reset ========== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; }
        :focus-visible { outline: 2px solid var(--border-focus); outline-offset: 2px; }

        /* ========== 容器 ========== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow { max-width: 880px; }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--text-dark);
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: #c49a3a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212,168,67,0.3);
        }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; border-radius: var(--radius-lg); }
        .btn-sm { padding: 8px 18px; font-size: 0.875rem; border-radius: var(--radius-sm); }
        .btn .fa-arrow-right { transition: transform 0.3s; }
        .btn:hover .fa-arrow-right { transform: translateX(4px); }

        /* ========== 标签 / 徽章 ========== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-accent {
            background: var(--accent-light);
            color: #8a6a2a;
        }
        .badge-dark {
            background: var(--secondary);
            color: var(--text-white);
        }
        .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--bg-light);
            color: var(--text-muted);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .tag:hover { border-color: var(--primary); color: var(--primary); }

        /* ========== Header / 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .logo:hover { color: var(--primary); }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .nav-main { display: flex; align-items: center; gap: 8px; }
        .nav-main a {
            padding: 8px 20px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--primary); background: var(--primary-light); }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-cta { margin-left: 12px; }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-dark);
            font-size: 1.4rem;
            transition: var(--transition);
        }
        .nav-toggle:hover { background: var(--bg-light); }

        /* 移动端导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 24px;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-light);
            transition: var(--transition);
        }
        .mobile-nav a:hover { background: var(--primary-light); color: var(--primary); }
        .mobile-nav a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
        .mobile-nav .nav-cta-mobile { margin-top: 12px; }

        /* ========== Hero 首屏 ========== */
        .hero {
            padding: 140px 0 100px;
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(15,15,26,0.88) 0%, rgba(30,30,50,0.80) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201,37,43,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(212,168,67,0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-block;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(4px);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--accent);
            border: 1px solid rgba(255,255,255,0.08);
            margin-bottom: 24px;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            max-width: 720px;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 span { color: var(--accent); }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.75);
            max-width: 580px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.10);
        }
        .hero-stat h3 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-stat h3 small { font-size: 1rem; font-weight: 400; color: var(--accent); margin-left: 4px; }
        .hero-stat p { font-size: 0.9rem; color: rgba(255,255,255,0.5); margin: 0; }

        /* ========== 通用板块 ========== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-light); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-dark h2, .section-dark h3 { color: var(--text-white); }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
        }
        .section-title h2 { margin-bottom: 12px; }
        .section-title p {
            max-width: 600px;
            margin: 0 auto;
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .section-title-alt h2 { color: var(--text-white); }
        .section-title-alt p { color: rgba(255,255,255,0.6); }

        /* ========== 分割线 ========== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 0 auto 20px;
        }
        .divider-accent { background: var(--accent); }
        .divider-light { background: rgba(255,255,255,0.3); }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-body { padding: 24px; }
        .card-body h3 { margin-bottom: 8px; font-size: 1.15rem; }
        .card-body p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 12px; }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .card-meta i { margin-right: 4px; }

        /* ========== 网格 ========== */
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .grid-2-alt { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

        /* ========== 分类入口板块 ========== */
        .category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: var(--primary);
        }
        .category-card .icon {
            width: 56px;
            height: 56px;
            background: var(--primary-light);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .category-card:hover .icon { background: var(--primary); color: var(--text-white); }
        .category-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
        .category-card p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

        /* ========== 图文区块 ========== */
        .text-image { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
        .text-image .text h2 { margin-bottom: 16px; }
        .text-image .text p { color: var(--text-muted); }
        .text-image .image img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); width: 100%; }
        .text-image.reversed .text { order: 1; }
        .text-image.reversed .image { order: 2; }

        /* ========== 列表 ========== */
        .list-check { display: flex; flex-direction: column; gap: 12px; }
        .list-check li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .list-check li:last-child { border-bottom: none; }
        .list-check i { color: var(--primary); font-size: 1.1rem; margin-top: 3px; flex-shrink: 0; }
        .list-check h4 { font-size: 1rem; margin-bottom: 2px; }
        .list-check p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

        /* ========== 数字 / 数据 ========== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
        .stat-item { padding: 32px 16px; }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-label { font-size: 1rem; color: var(--text-muted); font-weight: 500; }
        .section-dark .stat-number { color: var(--accent); }
        .section-dark .stat-label { color: rgba(255,255,255,0.6); }

        /* ========== 流程 ========== */
        .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
        .step {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
            transition: var(--transition);
        }
        .step:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .step-num {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 16px;
        }
        .step h4 { font-size: 1.05rem; margin-bottom: 6px; }
        .step p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

        /* ========== FAQ ========== */
        .faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question .fa-chevron-down { transition: transform 0.3s; color: var(--text-muted); font-size: 0.85rem; }
        .faq-item.open .faq-question .fa-chevron-down { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }
        .section-alt .faq-item { background: var(--bg-white); }

        /* ========== CTA ========== */
        .cta {
            padding: 80px 0;
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(15,15,26,0.90), rgba(30,30,50,0.85)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            text-align: center;
            color: var(--text-white);
        }
        .cta h2 { color: var(--text-white); font-size: 2.2rem; margin-bottom: 16px; }
        .cta p { color: rgba(255,255,255,0.7); max-width: 540px; margin: 0 auto 32px; font-size: 1.05rem; }
        .cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

        /* ========== 最新资讯列表 ========== */
        .post-list { display: flex; flex-direction: column; gap: 16px; }
        .post-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .post-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
            transform: translateX(6px);
        }
        .post-item .post-index {
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }
        .post-item .post-info { flex: 1; }
        .post-item .post-info h4 { font-size: 1rem; margin-bottom: 4px; }
        .post-item .post-info h4 a { color: var(--text-dark); }
        .post-item .post-info h4 a:hover { color: var(--primary); }
        .post-item .post-info p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }
        .post-item .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .post-item .post-meta .badge { font-size: 0.72rem; padding: 2px 10px; }
        .post-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            background: var(--bg-light);
            border-radius: var(--radius-md);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 32px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); max-width: 320px; }
        .footer-col h4 { color: var(--text-white); font-size: 1rem; margin-bottom: 16px; }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); 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: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .category-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .steps { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .hero h1 { font-size: 2.6rem; }
        }

        @media (max-width: 768px) {
            .nav-main .nav-links { display: none; }
            .nav-main .nav-cta { display: none; }
            .nav-toggle { display: flex; }

            .hero { padding: 120px 0 72px; }
            .hero h1 { font-size: 2rem; max-width: 100%; }
            .hero p { font-size: 1rem; }
            .hero-stats { flex-wrap: wrap; gap: 24px; }
            .hero-stat h3 { font-size: 1.6rem; }

            .section { padding: 56px 0; }
            h2 { font-size: 1.6rem; }

            .grid-2, .grid-3, .grid-4,
            .text-image, .grid-2-alt { grid-template-columns: 1fr; gap: 24px; }
            .text-image.reversed .text { order: 1; }
            .text-image.reversed .image { order: 2; }

            .category-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .steps { grid-template-columns: 1fr 1fr; gap: 16px; }

            .post-item { flex-direction: column; align-items: flex-start; gap: 12px; }
            .post-item .post-meta { width: 100%; justify-content: flex-start; }

            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }

            .cta h2 { font-size: 1.6rem; }
            .cta-actions { flex-direction: column; align-items: center; }

            .faq-question { font-size: 0.95rem; padding: 16px 18px; }
            .faq-answer { padding: 0 18px 16px; }

            .section-title p { font-size: 0.95rem; }
            .stat-number { font-size: 2rem; }
            .step { padding: 24px 16px; }
            .step-num { width: 36px; height: 36px; font-size: 1rem; }
        }

        @media (max-width: 520px) {
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.9rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; }
            .hero-stats { flex-direction: column; gap: 16px; }

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

            .container { padding: 0 16px; }
            .section { padding: 40px 0; }
            h2 { font-size: 1.4rem; }

            .card-body { padding: 18px; }
            .card-img { height: 160px; }

            .post-item { padding: 16px; }
            .post-item .post-index { width: 32px; height: 32px; font-size: 0.85rem; }

            .footer-grid { gap: 24px; }
            .site-footer { padding: 40px 0 24px; }

            .cta { padding: 56px 0; }
            .cta h2 { font-size: 1.4rem; }
        }

/* roulang page: article */
:root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #f5b7b1;
            --secondary: #1a1a2e;
            --secondary-light: #2d2d44;
            --accent: #e67e22;
            --accent-light: #f0c27a;
            --bg: #faf8f6;
            --bg-alt: #f0ede9;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --text: #1e1e2a;
            --text-light: #5a5a72;
            --text-inverse: #f5f0eb;
            --border: #e0dbd5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
        }

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

        html { scroll-behavior: smooth; }

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

        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; }

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

        /* Header / Nav */
        .site-header {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0 24px;
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-weight: 800;
            font-size: 1.2rem;
        }

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

        .nav-main {
            display: flex;
            align-items: center;
            gap: 32px;
        }

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

        .nav-links a {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }

        .nav-links a:hover {
            background: var(--bg-alt);
            color: var(--text);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--secondary);
            color: var(--text-inverse) !important;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .nav-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }

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

        /* Article Hero */
        .article-hero {
            padding: 60px 0 40px;
            background: linear-gradient(135deg, var(--bg) 0%, var(--bg-alt) 100%);
            border-bottom: 1px solid var(--border);
        }

        .article-hero .container {
            max-width: 840px;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a { color: var(--text-light); }
        .article-breadcrumb a:hover { color: var(--primary); }
        .article-breadcrumb span { color: var(--text-light); }

        .article-category-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-light);
            font-size: 0.9rem;
        }

        .article-meta i { margin-right: 6px; opacity: 0.7; }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
        }

        /* Article Body */
        .article-body-section {
            padding: 50px 0 70px;
        }

        .article-body-section .container {
            max-width: 840px;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }

        .article-content p {
            margin-bottom: 1.6em;
        }

        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 2em;
            margin-bottom: 0.8em;
            color: var(--text);
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: var(--text);
        }

        .article-content ul, .article-content ol {
            margin-bottom: 1.6em;
            padding-left: 1.6em;
        }

        .article-content li {
            margin-bottom: 0.4em;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 1.6em 0;
            background: var(--bg-alt);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.6em 0;
            box-shadow: var(--shadow-sm);
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

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

        .article-footer-meta {
            margin-top: 48px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

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

        .article-tag {
            background: var(--bg-alt);
            color: var(--text-light);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .article-share {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .article-share span {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-alt);
            color: var(--text-light);
            transition: var(--transition);
        }

        .article-share a:hover {
            background: var(--primary);
            color: #fff;
        }

        /* Not Found */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found-box i {
            font-size: 4rem;
            color: var(--text-light);
            opacity: 0.3;
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 1.6rem;
            color: var(--text);
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

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

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* CTA Section */
        .cta-section {
            padding: 70px 0;
            background: var(--bg-dark);
            color: var(--text-inverse);
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.8;
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            background: var(--accent);
            color: #fff;
            font-size: 1rem;
            padding: 14px 36px;
        }

        .cta-section .btn-primary:hover {
            background: #d35400;
            box-shadow: 0 8px 30px rgba(230, 126, 34, 0.35);
        }

        /* Footer */
        .site-footer {
            background: var(--secondary);
            color: var(--text-inverse);
            padding: 60px 0 30px;
        }

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

        .footer-brand .logo {
            color: var(--text-inverse);
            margin-bottom: 16px;
            font-size: 1.2rem;
        }

        .footer-brand .logo .logo-icon {
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 0.9rem;
            opacity: 0.65;
            max-width: 320px;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-inverse);
        }

        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            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: 0.82rem;
            opacity: 0.5;
        }

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

        @media (max-width: 768px) {
            .header-inner { height: 64px; }

            .nav-links { display: none; }

            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                gap: 4px;
                box-shadow: var(--shadow-md);
            }

            .nav-links.open a { width: 100%; text-align: center; padding: 12px; }

            .nav-cta { display: none; }

            .nav-cta.mobile-show { display: inline-flex; }

            .nav-toggle { display: block; }

            .article-hero h1 { font-size: 1.8rem; }

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

            .article-body-section { padding: 30px 0 50px; }

            .article-content { font-size: 0.98rem; }

            .article-footer-meta { flex-direction: column; align-items: flex-start; }

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

            .cta-section { padding: 50px 0; }

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

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

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

            .article-hero h1 { font-size: 1.5rem; }

            .article-content { font-size: 0.92rem; }

            .article-meta { font-size: 0.8rem; gap: 12px; }
        }

        /* Mobile nav toggle helper */
        .nav-links.open + .nav-cta { display: none; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #1a2a4a;
            --color-primary-light: #2c4a7a;
            --color-primary-dark: #0f1a2e;
            --color-accent: #d4a853;
            --color-accent-light: #e8c97a;
            --color-accent-dark: #b8923a;
            --color-bg: #f8f7f4;
            --color-bg-alt: #f0ede8;
            --color-bg-card: #ffffff;
            --color-bg-dark: #1a2a4a;
            --color-text: #2c2c2c;
            --color-text-light: #6a6a6a;
            --color-text-lighter: #9a9a9a;
            --color-text-on-dark: #f0ede8;
            --color-border: #e0dcd6;
            --color-border-light: #f0ede8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 74, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 74, 0.08);
            --shadow-lg: 0 12px 40px rgba(26, 42, 74, 0.12);
            --shadow-xl: 0 24px 60px rgba(26, 42, 74, 0.16);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --header-height: 72px;
            --spacing-section: 80px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        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;
            color: var(--color-primary);
            font-weight: 700;
        }

        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: 1.1rem;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: var(--shadow-sm);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

        .logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            color: var(--color-accent);
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

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

        .nav-main {
            display: flex;
            align-items: center;
            gap: 32px;
        }

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

        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--color-text-light);
            font-size: 0.95rem;
            transition: background var(--transition), color var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(26, 42, 74, 0.05);
        }

        .nav-links a.active {
            color: var(--color-primary);
            background: rgba(26, 42, 74, 0.08);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 4px;
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: rgba(26, 42, 74, 0.05);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(26, 42, 74, 0.1);
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border-light);
                box-shadow: var(--shadow-md);
            }

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

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

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

            .nav-links a.active {
                background: rgba(26, 42, 74, 0.08);
            }

            .nav-toggle {
                display: block;
            }

            .nav-cta {
                display: none;
            }

            .nav-main .nav-cta.mobile-show {
                display: inline-flex;
                margin-top: 8px;
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 12px;
            }
            .logo {
                font-size: 1.05rem;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn i {
            font-size: 0.85em;
            transition: transform var(--transition);
        }

        .btn:hover i {
            transform: translateX(3px);
        }

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

        .btn-primary:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 42, 74, 0.2);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(26, 42, 74, 0.15);
        }

        .btn-accent {
            background: var(--color-accent);
            color: var(--color-primary-dark) !important;
            border-color: var(--color-accent);
        }

        .btn-accent:hover {
            background: var(--color-accent-light);
            border-color: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 168, 83, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-primary) !important;
            border-color: var(--color-primary);
        }

        .btn-outline:hover {
            background: var(--color-primary);
            color: #fff !important;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(212, 168, 83, 0.15);
            color: var(--color-accent-dark);
        }

        .badge-primary {
            background: rgba(26, 42, 74, 0.1);
            color: var(--color-primary);
        }

        .badge-light {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding-top: calc(var(--header-height) + 40px);
            padding-bottom: 60px;
            background: var(--color-primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            position: relative;
            min-height: 300px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 74, 0.85) 0%, rgba(26, 42, 74, 0.6) 100%);
            z-index: 1;
        }

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

        .page-banner h1 {
            color: #fff;
            margin-bottom: 12px;
            font-weight: 800;
        }

        .page-banner p {
            color: var(--color-text-on-dark);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto;
            opacity: 0.9;
            line-height: 1.6;
        }

        .page-banner .badge {
            margin-bottom: 16px;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .breadcrumb span {
            color: var(--color-accent);
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 240px;
                padding-top: calc(var(--header-height) + 24px);
                padding-bottom: 40px;
            }
            .page-banner p {
                font-size: 1rem;
            }
        }

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

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

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

        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: #fff;
        }

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

        .section-header h2 {
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--color-text-light);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.05rem;
        }

        .section-header .badge {
            margin-bottom: 12px;
        }

        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 4px;
            margin: 16px auto 20px;
        }

        @media (max-width: 768px) {
            .section {
                --spacing-section: 50px;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

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

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

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

        @media (max-width: 1024px) {
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .card-grid,
            .card-grid.cols-2,
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
        }

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

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

        .card-image {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
            background: var(--color-bg-alt);
        }

        .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body .badge {
            align-self: flex-start;
            margin-bottom: 10px;
        }

        .card-body h3 {
            margin-bottom: 8px;
            font-size: 1.15rem;
        }

        .card-body p {
            color: var(--color-text-light);
            font-size: 0.92rem;
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }

        .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
            font-size: 0.85rem;
            color: var(--color-text-lighter);
        }

        .card-footer a {
            font-weight: 600;
            font-size: 0.88rem;
        }

        .card-footer a i {
            font-size: 0.75em;
        }

        /* ===== Guide Category Cards (special) ===== */
        .guide-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            position: relative;
        }

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

        .guide-card .card-image {
            aspect-ratio: 16/9;
        }

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

        .guide-card .card-body h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

        .guide-card .card-body p {
            font-size: 0.95rem;
        }

        .guide-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }

        .guide-tags .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--color-bg-alt);
            color: var(--color-text-light);
            transition: background var(--transition), color var(--transition);
        }

        .guide-tags .tag:hover {
            background: var(--color-accent);
            color: var(--color-primary-dark);
        }

        /* ===== List Group ===== */
        .list-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

        .list-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .list-item .icon-box {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(212, 168, 83, 0.12);
            border-radius: var(--radius-sm);
            color: var(--color-accent-dark);
            font-size: 1.2rem;
        }

        .list-item .content h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .list-item .content p {
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.5;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: background var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 0.92rem;
            color: var(--color-text-on-dark);
            opacity: 0.8;
        }

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

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            background: none;
            text-align: left;
            gap: 16px;
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: rgba(26, 42, 74, 0.03);
        }

        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 18px;
            color: var(--color-text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--color-primary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            padding: 80px 0;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 74, 0.88) 0%, rgba(26, 42, 74, 0.7) 100%);
            z-index: 1;
        }

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

        .cta-section h2 {
            color: #fff;
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--color-text-on-dark);
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: var(--color-text-on-dark);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo .logo-icon {
            background: var(--color-accent);
            color: var(--color-primary-dark);
        }

        .footer-brand p {
            font-size: 0.9rem;
            opacity: 0.7;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: var(--color-text-on-dark);
            opacity: 0.65;
            font-size: 0.88rem;
            padding: 4px 0;
            transition: opacity var(--transition), color var(--transition);
        }

        .footer-col a:hover {
            opacity: 1;
            color: var(--color-accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.82rem;
            opacity: 0.55;
            flex-wrap: wrap;
            gap: 8px;
        }

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

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Responsive helpers ===== */
        .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;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

        /* ===== Animations ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            animation: fadeInUp 0.7s ease forwards;
        }

        .fade-in.delay-1 {
            animation-delay: 0.1s;
        }
        .fade-in.delay-2 {
            animation-delay: 0.2s;
        }
        .fade-in.delay-3 {
            animation-delay: 0.3s;
        }
        .fade-in.delay-4 {
            animation-delay: 0.4s;
        }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== Focus & Accessibility ===== */
        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ===== Skip link ===== */
        .skip-link {
            position: absolute;
            top: -100px;
            left: 8px;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            z-index: 10000;
            transition: top 0.3s;
        }

        .skip-link:focus {
            top: 8px;
        }

        /* ===== Selection ===== */
        ::selection {
            background: var(--color-accent);
            color: var(--color-primary-dark);
        }

        /* ===== Back to top ===== */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-lg);
            z-index: 900;
            transition: all var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            border: 2px solid transparent;
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-to-top:hover {
            background: var(--color-accent);
            color: var(--color-primary-dark);
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
        }

        @media (max-width: 520px) {
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }