/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a9e;
            --primary-dark: #0f1a44;
            --accent: #e84c3d;
            --accent-light: #f06a5a;
            --accent-dark: #c0392b;
            --gold: #f5b342;
            --gold-light: #f8c96a;
            --bg-dark: #0b1120;
            --bg-darker: #070c18;
            --bg-card: #ffffff;
            --bg-soft: #f4f6fc;
            --bg-mid: #e8ecf5;
            --text-dark: #1a1a2e;
            --text-body: #334155;
            --text-light: #64748b;
            --text-white: #f1f5f9;
            --border: #dce1eb;
            --border-light: #eef2f7;
            --shadow-sm: 0 2px 8px rgba(26,42,108,0.06);
            --shadow-md: 0 6px 24px rgba(26,42,108,0.08);
            --shadow-lg: 0 12px 40px rgba(26,42,108,0.12);
            --shadow-xl: 0 24px 60px rgba(26,42,108,0.16);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --nav-height: 72px;
            --tab-height: 64px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

        /* ===== 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-family);
            color: var(--text-body);
            background: var(--bg-soft);
            line-height: 1.7;
            padding-top: var(--nav-height);
            padding-bottom: 0;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
        p { margin-bottom: 0; }
        .container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1050;
            height: var(--nav-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 20px rgba(0,0,0,0.04);
            transition: var(--transition);
        }
        .site-header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; }
        .logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.35rem; color: var(--primary); letter-spacing: -0.02em; }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { color: var(--primary); }
        .nav-list { display: flex; align-items: center; gap: 6px; margin: 0; padding: 0; }
        .nav-list .nav-item { list-style: none; }
        .nav-list .nav-link {
            display: flex; align-items: center; gap: 6px; padding: 8px 18px; border-radius: 40px;
            font-size: 0.92rem; font-weight: 600; color: var(--text-body); transition: var(--transition);
            position: relative; white-space: nowrap;
        }
        .nav-list .nav-link i { font-size: 0.9rem; opacity: 0.7; }
        .nav-list .nav-link:hover { color: var(--primary); background: rgba(26,42,108,0.06); }
        .nav-list .nav-link.active { color: #fff; background: var(--primary); box-shadow: 0 4px 14px rgba(26,42,108,0.25); }
        .nav-list .nav-link.active i { opacity: 1; }
        .nav-cta {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 8px 22px; border-radius: 40px; font-weight: 700; font-size: 0.9rem;
            background: var(--accent); color: #fff; border: none; transition: var(--transition);
            cursor: pointer; box-shadow: 0 4px 16px rgba(232,76,61,0.3);
        }
        .nav-cta:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 24px rgba(232,76,61,0.4); }
        .nav-cta i { font-size: 0.85rem; }

        /* ===== 移动端底部Tab ===== */
        .mobile-tab-bar {
            display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 1060;
            height: var(--tab-height); background: rgba(255,255,255,0.98);
            backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-light); box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
            padding: 0 8px; align-items: center; justify-content: space-around;
        }
        .tab-item {
            display: flex; flex-direction: column; align-items: center; justify-content: center;
            gap: 2px; padding: 6px 10px; border-radius: 16px; transition: var(--transition);
            color: var(--text-light); font-size: 0.68rem; font-weight: 500; cursor: pointer;
            min-width: 56px; border: none; background: transparent; text-decoration: none;
        }
        .tab-item i { font-size: 1.3rem; transition: var(--transition); }
        .tab-item span { display: block; line-height: 1.2; }
        .tab-item:hover { color: var(--primary); background: rgba(26,42,108,0.05); }
        .tab-item.active { color: var(--accent); }
        .tab-item.active i { transform: scale(1.05); }
        .tab-item.active::after { content: ''; position: absolute; bottom: 4px; width: 20px; height: 3px; border-radius: 4px; background: var(--accent); }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative; min-height: 88vh; display: flex; align-items: center;
            background: linear-gradient(160deg, var(--bg-dark) 0%, var(--bg-darker) 60%, #0d1a2e 100%);
            overflow: hidden; padding: 40px 0 60px;
        }
        .hero-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18; mix-blend-mode: overlay;
        }
        .hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 6px 18px; border-radius: 40px; font-size: 0.82rem; font-weight: 600;
            background: rgba(245,179,66,0.15); color: var(--gold-light); border: 1px solid rgba(245,179,66,0.2);
            margin-bottom: 20px; letter-spacing: 0.3px;
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero-title { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 900; color: #fff; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 20px; }
        .hero-title .highlight { background: linear-gradient(135deg, var(--gold), var(--gold-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc { font-size: 1.1rem; color: rgba(255,255,255,0.7); line-height: 1.8; max-width: 540px; margin-bottom: 32px; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
        .btn-primary-custom {
            display: inline-flex; align-items: center; gap: 10px; padding: 14px 34px; border-radius: 50px;
            font-weight: 700; font-size: 1rem; background: var(--accent); color: #fff; border: none;
            transition: var(--transition); cursor: pointer; box-shadow: 0 8px 28px rgba(232,76,61,0.35);
        }
        .btn-primary-custom:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 36px rgba(232,76,61,0.45); }
        .btn-outline-custom {
            display: inline-flex; align-items: center; gap: 10px; padding: 13px 32px; border-radius: 50px;
            font-weight: 600; font-size: 1rem; background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.25);
            transition: var(--transition); cursor: pointer;
        }
        .btn-outline-custom:hover { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.5); transform: translateY(-2px); }
        .hero-stats { display: flex; gap: 32px; margin-top: 36px; flex-wrap: wrap; }
        .hero-stat-item { text-align: center; }
        .hero-stat-item .num { font-size: 2rem; font-weight: 900; color: var(--gold); line-height: 1.2; }
        .hero-stat-item .label { font-size: 0.82rem; color: rgba(255,255,255,0.55); letter-spacing: 0.5px; }
        .hero-visual { position: relative; display: flex; justify-content: center; align-items: center; }
        .hero-visual img { border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); transform: perspective(800px) rotateY(-4deg); transition: var(--transition); max-height: 480px; width: 100%; object-fit: cover; }
        .hero-visual img:hover { transform: perspective(800px) rotateY(0deg); }
        .hero-card-float {
            position: absolute; bottom: -20px; left: -20px; background: rgba(255,255,255,0.95); backdrop-filter: blur(8px);
            padding: 16px 22px; border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
            display: flex; align-items: center; gap: 14px; min-width: 160px;
        }
        .hero-card-float .icon-circle { width: 44px; height: 44px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; }
        .hero-card-float .info .small { font-size: 0.75rem; color: var(--text-light); }
        .hero-card-float .info .big { font-weight: 700; color: var(--text-dark); font-size: 0.95rem; }

        /* ===== 板块通用 ===== */
        .section-padding { padding: 80px 0; }
        .section-title { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: var(--text-dark); margin-bottom: 12px; letter-spacing: -0.015em; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-light); max-width: 600px; line-height: 1.7; }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header .section-subtitle { margin: 0 auto; }
        .section-divider { width: 60px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--accent), var(--gold)); margin: 16px auto 0; }

        /* ===== 核心优势 ===== */
        .advantage-card {
            background: var(--bg-card); border-radius: var(--radius-md); padding: 32px 24px;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
            transition: var(--transition); height: 100%; text-align: center;
        }
        .advantage-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
        .advantage-card .icon-wrap {
            width: 60px; height: 60px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
            margin: 0 auto 18px; font-size: 1.6rem; color: #fff;
        }
        .advantage-card .icon-wrap.blue { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
        .advantage-card .icon-wrap.red { background: linear-gradient(135deg, var(--accent), var(--accent-light)); }
        .advantage-card .icon-wrap.gold { background: linear-gradient(135deg, var(--gold), #d4942b); }
        .advantage-card .icon-wrap.green { background: linear-gradient(135deg, #1a8a6c, #2db89a); }
        .advantage-card h5 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
        .advantage-card p { font-size: 0.92rem; color: var(--text-light); line-height: 1.7; }

        /* ===== 分类入口 ===== */
        .category-card {
            position: relative; border-radius: var(--radius-md); overflow: hidden; height: 260px;
            display: flex; align-items: flex-end; cursor: pointer; transition: var(--transition);
            background: var(--bg-dark); box-shadow: var(--shadow-md);
        }
        .category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: var(--transition); opacity: 0.7; }
        .category-card:hover img { transform: scale(1.06); opacity: 0.5; }
        .category-card .overlay {
            position: relative; z-index: 2; padding: 24px 22px; width: 100%;
            background: linear-gradient(0deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0) 100%);
            color: #fff;
        }
        .category-card .overlay h5 { color: #fff; font-size: 1.15rem; font-weight: 700; margin-bottom: 4px; }
        .category-card .overlay p { color: rgba(255,255,255,0.7); font-size: 0.85rem; }
        .category-card .overlay .tag {
            display: inline-block; padding: 2px 12px; border-radius: 20px; font-size: 0.7rem; font-weight: 600;
            background: rgba(245,179,66,0.2); color: var(--gold); border: 1px solid rgba(245,179,66,0.2); margin-bottom: 8px;
        }

        /* ===== 资讯列表 ===== */
        .news-card {
            background: var(--bg-card); border-radius: var(--radius-md); overflow: hidden;
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
            transition: var(--transition); height: 100%;
        }
        .news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .news-card .img-wrap { height: 200px; overflow: hidden; position: relative; }
        .news-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .news-card:hover .img-wrap img { transform: scale(1.04); }
        .news-card .body { padding: 20px 22px 24px; }
        .news-card .meta { display: flex; align-items: center; gap: 12px; font-size: 0.78rem; color: var(--text-light); margin-bottom: 10px; }
        .news-card .meta .cat { padding: 2px 12px; border-radius: 20px; background: rgba(26,42,108,0.06); color: var(--primary); font-weight: 600; }
        .news-card .meta .date { display: flex; align-items: center; gap: 4px; }
        .news-card h5 { font-size: 1.02rem; font-weight: 700; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card p { font-size: 0.88rem; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card .read-more { font-size: 0.85rem; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; }
        .news-card .read-more:hover { gap: 10px; }

        /* ===== 数据/流程 ===== */
        .process-section { background: var(--bg-dark); position: relative; overflow: hidden; }
        .process-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.08; }
        .process-section .section-title { color: #fff; }
        .process-section .section-subtitle { color: rgba(255,255,255,0.6); }
        .process-step { text-align: center; position: relative; padding: 0 16px; }
        .process-step .step-num {
            width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
            margin: 0 auto 16px; font-size: 1.3rem; font-weight: 800; color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            box-shadow: 0 6px 24px rgba(232,76,61,0.3);
        }
        .process-step h5 { color: #fff; font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
        .process-step p { color: rgba(255,255,255,0.6); font-size: 0.88rem; line-height: 1.6; }
        .process-arrow { display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: var(--gold); opacity: 0.5; }

        /* ===== 数据指标 ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .stat-box {
            background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-md); padding: 28px 20px; text-align: center; backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .stat-box:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.15); transform: translateY(-3px); }
        .stat-box .num { font-size: 2.4rem; font-weight: 900; color: var(--gold); line-height: 1.2; }
        .stat-box .label { font-size: 0.88rem; color: rgba(255,255,255,0.6); margin-top: 6px; }

        /* ===== FAQ ===== */
        .faq-item { border: 1px solid var(--border-light); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; background: var(--bg-card); transition: var(--transition); }
        .faq-item:hover { border-color: var(--border); box-shadow: var(--shadow-sm); }
        .faq-question { padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 600; color: var(--text-dark); font-size: 0.98rem; gap: 12px; }
        .faq-question i { color: var(--accent); transition: var(--transition); font-size: 0.9rem; flex-shrink: 0; }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-answer { padding: 0 22px 18px; font-size: 0.92rem; color: var(--text-light); line-height: 1.8; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(160deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative; overflow: hidden; padding: 70px 0;
        }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat; opacity: 0.1; mix-blend-mode: overlay; }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; }
        .cta-section p { color: rgba(255,255,255,0.7); font-size: 1.05rem; max-width: 540px; margin: 12px auto 28px; }
        .cta-section .btn-primary-custom { background: var(--gold); color: var(--text-dark); box-shadow: 0 8px 28px rgba(245,179,66,0.35); }
        .cta-section .btn-primary-custom:hover { background: var(--gold-light); color: var(--text-dark); box-shadow: 0 12px 36px rgba(245,179,66,0.5); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-darker); color: rgba(255,255,255,0.7); padding: 48px 0 28px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .site-footer .logo { color: #fff; margin-bottom: 12px; }
        .site-footer .logo span { -webkit-text-fill-color: #fff; }
        .site-footer p { font-size: 0.88rem; line-height: 1.7; max-width: 360px; }
        .site-footer h6 { color: #fff; font-weight: 700; font-size: 0.95rem; margin-bottom: 14px; }
        .site-footer a { color: rgba(255,255,255,0.6); font-size: 0.88rem; display: inline-block; margin-bottom: 6px; transition: var(--transition); }
        .site-footer a:hover { color: var(--gold); padding-left: 4px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 20px; margin-top: 32px; font-size: 0.82rem; color: rgba(255,255,255,0.4); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; text-align: center; }
            .hero-desc { margin-left: auto; margin-right: auto; }
            .hero-actions { justify-content: center; }
            .hero-stats { justify-content: center; }
            .hero-visual { margin-top: 30px; }
            .hero-card-float { left: 10px; bottom: -10px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .process-arrow { transform: rotate(90deg); }
        }
        @media (max-width: 768px) {
            body { padding-bottom: var(--tab-height); }
            .site-header .nav-list { display: none; }
            .site-header .nav-cta { display: none; }
            .mobile-tab-bar { display: flex; }
            .hero-section { min-height: auto; padding: 60px 0 40px; }
            .hero-title { font-size: 2rem; }
            .hero-desc { font-size: 0.95rem; }
            .hero-stats { gap: 20px; }
            .hero-stat-item .num { font-size: 1.5rem; }
            .section-padding { padding: 50px 0; }
            .news-card .img-wrap { height: 160px; }
            .category-card { height: 200px; }
            .stat-box .num { font-size: 1.8rem; }
            .cta-section { padding: 50px 0; }
            .site-footer { padding-bottom: 80px; }
            .footer-bottom { text-align: center; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 1.65rem; }
            .hero-actions { flex-direction: column; align-items: stretch; }
            .hero-actions .btn-primary-custom, .hero-actions .btn-outline-custom { justify-content: center; }
            .hero-card-float { position: relative; bottom: 0; left: 0; margin-top: 16px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-box { padding: 18px 14px; }
            .stat-box .num { font-size: 1.5rem; }
            .section-title { font-size: 1.4rem; }
            .faq-question { font-size: 0.9rem; padding: 14px 16px; }
            .faq-answer { padding: 0 16px 14px; font-size: 0.85rem; }
        }

        /* ===== 工具类 ===== */
        .text-accent { color: var(--accent); }
        .text-gold { color: var(--gold); }
        .bg-soft-custom { background: var(--bg-soft); }
        .gap-8 { gap: 8px; }
        .gap-12 { gap: 12px; }
        .gap-16 { gap: 16px; }
        .mt-20 { margin-top: 20px; }
        .mb-20 { margin-bottom: 20px; }
        .mb-30 { margin-bottom: 30px; }
        .rounded-custom { border-radius: var(--radius-md); }
        .shadow-custom { box-shadow: var(--shadow-md); }
        .border-custom { border: 1px solid var(--border-light); }

        /* 无障碍轮廓 */
        :focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0d1b2a;
            --primary-light: #1b2d45;
            --primary-dark: #070f17;
            --accent: #c9a24e;
            --accent-light: #dfbe6a;
            --accent-dark: #a8832e;
            --bg-body: #f5f5f0;
            --bg-card: #ffffff;
            --bg-dark: #0d1b2a;
            --text-dark: #1a1a1a;
            --text-body: #2d2d2d;
            --text-muted: #6b7280;
            --text-light: #f0f0f0;
            --border-color: #e5e7eb;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-body);
            color: var(--text-body);
            font-size: 1rem;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--primary);
            padding: 10px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
            border-bottom: 2px solid var(--accent);
        }

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

        .site-header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--accent);
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            transition: opacity var(--transition);
        }
        .site-header .logo:hover {
            opacity: 0.85;
            color: var(--accent-light);
        }
        .site-header .logo i {
            font-size: 1.7rem;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .nav-list .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.94rem;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
        }
        .nav-list .nav-link i {
            font-size: 0.9rem;
        }
        .nav-list .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-list .nav-link.active {
            color: var(--accent);
            background: rgba(201, 162, 78, 0.15);
        }
        .nav-list .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.92rem;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(201, 162, 78, 0.35);
        }

        /* ===== Mobile Bottom Tab ===== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: var(--primary);
            border-top: 2px solid var(--accent);
            padding: 6px 0 env(safe-area-inset-bottom, 8px);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
            justify-content: space-around;
        }
        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.68rem;
            transition: all var(--transition);
            flex: 1;
            max-width: 100px;
            text-align: center;
        }
        .bottom-tab-nav .tab-item i {
            font-size: 1.2rem;
        }
        .bottom-tab-nav .tab-item:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .bottom-tab-nav .tab-item.active {
            color: var(--accent);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-blend-mode: overlay;
            padding: 80px 0 70px;
            position: relative;
            text-align: center;
            border-bottom: 4px solid var(--accent);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 27, 42, 0.65);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner .breadcrumb-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(6px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }
        .page-banner .breadcrumb-custom a {
            color: var(--accent-light);
        }
        .page-banner .breadcrumb-custom a:hover {
            color: #fff;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .page-banner h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 10px;
            line-height: 1.7;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 4px 18px;
            border-radius: 40px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-top: 12px;
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 70px 0;
        }
        .section-padding-sm {
            padding: 50px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title h2 i {
            color: var(--accent);
            margin-right: 8px;
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 620px;
            margin: 0 auto;
        }
        .section-title .accent-line {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 14px auto 0;
        }

        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card-custom .card-body {
            padding: 24px 20px 22px;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .card-custom .card-text {
            color: var(--text-muted);
            font-size: 0.93rem;
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: rgba(201, 162, 78, 0.12);
            color: var(--accent-dark);
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .card-custom .card-link {
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-custom .card-link:hover {
            color: var(--primary);
        }

        /* ===== Steps / Timeline ===== */
        .step-item {
            display: flex;
            gap: 20px;
            padding: 24px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 20px;
            transition: all var(--transition);
            border-left: 4px solid var(--accent);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .step-item .step-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .step-item .step-content h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .step-item .step-content p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin: 0;
        }

        /* ===== Icon Feature Box ===== */
        .feature-box {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
        }
        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .feature-box .icon-wrap {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: rgba(201, 162, 78, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.8rem;
            color: var(--accent-dark);
            transition: all var(--transition);
        }
        .feature-box:hover .icon-wrap {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .feature-box h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .feature-box p {
            color: var(--text-muted);
            font-size: 0.91rem;
            margin: 0;
        }

        /* ===== Safety List ===== */
        .safety-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .safety-item:last-child {
            border-bottom: none;
        }
        .safety-item .safety-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(201, 162, 78, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-dark);
            font-size: 1rem;
        }
        .safety-item .safety-text strong {
            color: var(--primary);
            display: block;
            font-size: 0.98rem;
        }
        .safety-item .safety-text span {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* ===== FAQ Accordion ===== */
        .faq-accordion .accordion-item {
            border: none;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 10px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.98rem;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary);
            color: var(--accent);
        }
        .faq-accordion .accordion-button::after {
            background-size: 1rem;
            transition: transform var(--transition);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: brightness(0) invert(1);
        }
        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-muted);
            font-size: 0.92rem;
            padding: 12px 20px 18px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 70px 0;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 27, 42, 0.7);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 14px 40px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 700;
            border: none;
            transition: all var(--transition);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(201, 162, 78, 0.35);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 30px;
            border-top: 4px solid var(--accent);
        }
        .site-footer .logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 1.25rem;
            font-weight: 700;
        }
        .site-footer .logo:hover {
            color: var(--accent-light);
        }
        .site-footer .logo i {
            font-size: 1.5rem;
        }
        .site-footer h6 {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
            position: relative;
            padding-bottom: 8px;
        }
        .site-footer h6::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            line-height: 2;
            transition: color var(--transition);
        }
        .site-footer a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 22px;
            margin-top: 30px;
            font-size: 0.84rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 991px) {
            .site-header .nav-list {
                gap: 2px;
            }
            .nav-list .nav-link {
                padding: 6px 12px;
                font-size: 0.85rem;
            }
            .nav-cta {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
            .page-banner {
                padding: 60px 0 50px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .section-padding {
                padding: 50px 0;
            }
        }

        @media (max-width: 768px) {
            .site-header .nav-list {
                display: none;
            }
            .site-header .nav-cta {
                display: none;
            }
            .bottom-tab-nav {
                display: flex;
            }
            body {
                padding-bottom: 62px;
            }
            .page-banner {
                padding: 50px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner h1 i {
                font-size: 1.2rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
            .section-padding {
                padding: 40px 0;
            }
            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 16px;
            }
            .step-item .step-num {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .feature-box {
                padding: 24px 16px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.35rem;
            }
            .page-banner .breadcrumb-custom {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
            .section-title h2 {
                font-size: 1.2rem;
            }
            .section-title p {
                font-size: 0.9rem;
            }
            .card-custom .card-title {
                font-size: 1rem;
            }
            .bottom-tab-nav .tab-item {
                font-size: 0.6rem;
                padding: 4px 6px;
            }
            .bottom-tab-nav .tab-item i {
                font-size: 1rem;
            }
            .cta-section h2 {
                font-size: 1.25rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
        }

        /* ===== Bootstrap Overrides ===== */
        .row.g-4>[class*="col-"] {
            padding-top: 0;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent);
        }
        .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ffffff'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .btn-link-custom {
            color: var(--accent-dark);
            font-weight: 600;
        }
        .btn-link-custom:hover {
            color: var(--primary);
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #3b82f6;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --secondary-light: #fbbf24;
            --dark: #0f172a;
            --darker: #0b1121;
            --bg-light: #f1f5f9;
            --bg-white: #ffffff;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.12);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== 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: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            padding-bottom: 0;
        }
        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; }
        ul, ol { list-style: none; }
        .container { max-width: 1240px; margin: 0 auto; padding: 0 1.25rem; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--dark); letter-spacing: -0.01em; }
        h1 { font-size: 2.5rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.25rem; }
        h5 { font-size: 1.1rem; }
        h6 { font-size: 0.95rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .section-title { text-align: center; margin-bottom: 3rem; }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 0.75rem auto 0;
        }
        .section-title p { max-width: 600px; margin: 0.75rem auto 0; color: var(--text-secondary); font-size: 1.05rem; }

        /* ===== Header & Navigation ===== */
        .site-header {
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226,232,240,0.5);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0.65rem 0;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--dark);
            text-decoration: none;
            white-space: nowrap;
        }
        .logo i { color: var(--primary); font-size: 1.45rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { opacity: 0.9; color: var(--dark); }
        .nav-list { display: flex; align-items: center; gap: 0.25rem; margin: 0; padding: 0; }
        .nav-item { margin: 0; }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.55rem 1.1rem;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link i { font-size: 0.9rem; }
        .nav-link:hover { background: var(--bg-light); color: var(--primary); }
        .nav-link.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(26,86,219,0.25); }
        .nav-link.active:hover { background: var(--primary-dark); color: #fff; }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.55rem 1.5rem;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(245,158,11,0.3);
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.35); color: #fff; }

        /* ===== Mobile Bottom Tab Navigation ===== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            padding: 0.35rem 0 env(safe-area-inset-bottom,0.35rem) 0;
            box-shadow: 0 -4px 24px rgba(0,0,0,0.06);
        }
        .bottom-tab-nav .tab-list { display: flex; align-items: stretch; justify-content: space-around; margin: 0; padding: 0; }
        .bottom-tab-nav .tab-item { flex: 1; text-align: center; }
        .bottom-tab-nav .tab-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.1rem;
            padding: 0.4rem 0.25rem;
            font-size: 0.68rem;
            font-weight: 600;
            color: var(--text-light);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            text-decoration: none;
        }
        .bottom-tab-nav .tab-link i { font-size: 1.2rem; transition: var(--transition); }
        .bottom-tab-nav .tab-link.active { color: var(--primary); }
        .bottom-tab-nav .tab-link.active i { color: var(--primary); }
        .bottom-tab-nav .tab-link:hover { color: var(--primary); background: transparent; }
        .bottom-tab-nav .tab-cta {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: #fff !important;
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-sm);
            margin-top: 0.1rem;
        }
        .bottom-tab-nav .tab-cta i { color: #fff !important; }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            padding: 6rem 0 4rem;
            background: var(--dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.55) 100%);
            z-index: 1;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner .banner-category {
            display: inline-block;
            padding: 0.3rem 1rem;
            background: var(--secondary);
            color: #fff;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 1rem;
        }
        .article-banner h1 {
            color: #fff;
            font-size: 2.6rem;
            font-weight: 800;
            max-width: 800px;
            line-height: 1.2;
            text-shadow: 0 2px 12px rgba(0,0,0,0.2);
            margin-bottom: 0.75rem;
        }
        .article-banner .banner-meta {
            color: rgba(255,255,255,0.7);
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 1.25rem;
            flex-wrap: wrap;
        }
        .article-banner .banner-meta i { margin-right: 0.3rem; color: var(--secondary); }

        /* ===== Article Content ===== */
        .article-section { padding: 3rem 0 4rem; }
        .article-wrapper {
            max-width: 820px;
            margin: 0 auto;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 2.5rem 3rem;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-light);
            flex-wrap: wrap;
        }
        .breadcrumb-custom a { color: var(--text-secondary); }
        .breadcrumb-custom a:hover { color: var(--primary); }
        .breadcrumb-custom .separator { color: var(--text-light); font-size: 0.75rem; }
        .breadcrumb-custom .current { color: var(--text-primary); font-weight: 600; }
        .article-body h1, .article-body h2, .article-body h3, .article-body h4 { margin-top: 2rem; margin-bottom: 0.75rem; color: var(--dark); }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body p { margin-bottom: 1.25rem; color: var(--text-primary); font-size: 1.05rem; line-height: 1.8; }
        .article-body ul, .article-body ol { margin-bottom: 1.25rem; padding-left: 1.5rem; color: var(--text-primary); }
        .article-body ul li { list-style: disc; margin-bottom: 0.4rem; }
        .article-body ol li { list-style: decimal; margin-bottom: 0.4rem; }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-light);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-primary);
            font-style: italic;
        }
        .article-body img { border-radius: var(--radius-md); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
        .article-body a { color: var(--primary); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border-light); }
        .article-tags .tag {
            display: inline-block;
            padding: 0.25rem 0.85rem;
            background: var(--bg-light);
            border-radius: 9999px;
            font-size: 0.78rem;
            color: var(--text-secondary);
            font-weight: 500;
            border: 1px solid var(--border);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        /* ===== Related Articles ===== */
        .related-section { padding: 4rem 0; background: var(--bg-white); }
        .related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
        .related-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--border);
        }
        .related-card .card-body { padding: 1.25rem 1.25rem 1.5rem; }
        .related-card .card-body h5 { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body h5 a { color: var(--dark); }
        .related-card .card-body h5 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .meta { font-size: 0.75rem; color: var(--text-light); }
        .related-card .card-body .badge-cat {
            display: inline-block;
            padding: 0.15rem 0.6rem;
            background: var(--primary);
            color: #fff;
            border-radius: 9999px;
            font-size: 0.68rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 4.5rem 0;
            background: var(--dark) url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
        }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(15,23,42,0.82); z-index: 1; }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { color: #fff; font-size: 2.2rem; margin-bottom: 0.75rem; }
        .cta-section p { color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto 1.5rem; font-size: 1.05rem; }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.8rem 2.5rem;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(245,158,11,0.35);
        }
        .cta-section .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(245,158,11,0.4); color: #fff; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255,255,255,0.7);
            padding: 4rem 0 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .site-footer .logo { color: #fff; margin-bottom: 0.75rem; }
        .site-footer .logo span { -webkit-text-fill-color: #fff; }
        .site-footer .logo i { color: var(--secondary); }
        .site-footer h6 { color: #fff; font-weight: 700; margin-bottom: 1rem; font-size: 0.95rem; }
        .site-footer a { color: rgba(255,255,255,0.55); font-size: 0.88rem; display: inline-block; margin-bottom: 0.35rem; transition: var(--transition); }
        .site-footer a:hover { color: var(--secondary); }
        .site-footer p { font-size: 0.88rem; color: rgba(255,255,255,0.5); }
        .footer-bottom {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== Not Found ===== */
        .not-found-box { text-align: center; padding: 3rem 1rem; }
        .not-found-box i { font-size: 3.5rem; color: var(--text-light); margin-bottom: 1rem; }
        .not-found-box h3 { color: var(--text-primary); margin-bottom: 0.5rem; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: 1.5rem; }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.6rem 1.8rem;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .article-banner h1 { font-size: 2.2rem; }
        }
        @media (max-width: 768px) {
            .site-header .nav-list { display: none; }
            .site-header .nav-cta { display: none; }
            .bottom-tab-nav { display: block; }
            body { padding-bottom: 68px; }
            .article-banner { padding: 4rem 0 2.5rem; min-height: 240px; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-wrapper { padding: 1.5rem 1.25rem; border-radius: var(--radius-md); }
            .article-body p { font-size: 0.98rem; }
            .related-grid { grid-template-columns: 1fr; }
            .section-title h2 { font-size: 1.6rem; }
            .cta-section h2 { font-size: 1.6rem; }
            .site-footer .container .row > div { margin-bottom: 1.5rem; }
            .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.3rem; }
            .article-banner .banner-meta { font-size: 0.78rem; gap: 0.75rem; }
            .article-wrapper { padding: 1rem 0.9rem; }
            .article-body p { font-size: 0.92rem; }
            .breadcrumb-custom { font-size: 0.75rem; }
            .related-card .card-img { height: 140px; }
            .cta-section h2 { font-size: 1.3rem; }
            .cta-section .btn-cta { width: 100%; justify-content: center; padding: 0.7rem 1.5rem; }
            .bottom-tab-nav .tab-link { font-size: 0.6rem; }
            .bottom-tab-nav .tab-link i { font-size: 1.05rem; }
        }

        /* ===== Article body empty state ===== */
        .article-body-empty { text-align: center; padding: 2rem 0; }
        .article-body-empty i { font-size: 2.5rem; color: var(--text-light); margin-bottom: 0.75rem; }
        .article-body-empty p { color: var(--text-secondary); }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b2b5c;
            --primary-light: #1a4a8a;
            --primary-dark: #071a3a;
            --accent: #e8b840;
            --accent-hover: #d4a52e;
            --accent-soft: #fdf4e0;
            --bg-body: #f5f7fc;
            --bg-card: #ffffff;
            --bg-dark: #0b1a30;
            --bg-section-alt: #eef2f9;
            --text-primary: #1a2332;
            --text-secondary: #4a5568;
            --text-muted: #8899aa;
            --text-light: #ffffff;
            --border-color: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(11, 43, 92, 0.06);
            --shadow-md: 0 6px 24px rgba(11, 43, 92, 0.10);
            --shadow-lg: 0 16px 48px rgba(11, 43, 92, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-height: 70px;
        }

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

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

        body {
            font-family: var(--font-base);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 1rem;
            padding-top: var(--header-height);
            overflow-x: hidden;
        }

        a {
            color: var(--primary-light);
            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;
        }

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

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

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 1px 12px rgba(11, 43, 92, 0.05);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--primary) !important;
            letter-spacing: -0.3px;
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 4px;
            margin: 0;
            padding: 0;
        }

        .nav-item .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-item .nav-link i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .nav-item .nav-link:hover {
            color: var(--primary);
            background: rgba(11, 43, 92, 0.05);
        }
        .nav-item .nav-link:hover i {
            color: var(--primary-light);
        }
        .nav-item .nav-link.active {
            color: var(--primary);
            background: rgba(11, 43, 92, 0.08);
            font-weight: 600;
        }
        .nav-item .nav-link.active i {
            color: var(--accent);
        }
        .nav-item .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--primary);
            color: var(--text-light) !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            box-shadow: 0 2px 12px rgba(11, 43, 92, 0.2);
        }
        .nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(11, 43, 92, 0.25);
        }
        .nav-cta i {
            font-size: 0.9rem;
        }

        /* 移动端菜单切换按钮 */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(11, 43, 92, 0.06);
        }

        /* 移动端底部 Tab 导航 */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--border-color);
            box-shadow: 0 -4px 20px rgba(11, 43, 92, 0.06);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
        }
        .mobile-bottom-nav .bottom-nav-inner {
            display: flex;
            justify-content: space-around;
            align-items: center;
            max-width: 500px;
            margin: 0 auto;
        }
        .mobile-bottom-nav .bottom-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            color: var(--text-muted);
            font-size: 0.65rem;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            text-decoration: none;
            min-width: 56px;
        }
        .mobile-bottom-nav .bottom-item i {
            font-size: 1.2rem;
            transition: color var(--transition);
        }
        .mobile-bottom-nav .bottom-item span {
            font-size: 0.6rem;
            line-height: 1.2;
        }
        .mobile-bottom-nav .bottom-item:hover,
        .mobile-bottom-nav .bottom-item.active {
            color: var(--primary);
        }
        .mobile-bottom-nav .bottom-item.active i {
            color: var(--accent);
        }
        .mobile-bottom-nav .bottom-item.active {
            font-weight: 600;
        }

        /* ===== Hero 板块 ===== */
        .page-hero {
            position: relative;
            padding: 80px 0 90px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 48, 0.88) 20%, rgba(11, 43, 92, 0.70) 70%, rgba(232, 184, 64, 0.15) 100%);
            z-index: 0;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .page-hero h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(232, 184, 64, 0.18);
            color: var(--accent);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 20px;
            border: 1px solid rgba(232, 184, 64, 0.25);
        }
        .page-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        .page-hero .hero-stats .stat-item {
            text-align: center;
            color: var(--text-light);
        }
        .page-hero .hero-stats .stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .page-hero .hero-stats .stat-item .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ===== 通用板块标题 ===== */
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title i {
            color: var(--accent);
            margin-right: 10px;
        }
        .section-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.7;
        }
        .section-sub.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-title.center {
            text-align: center;
        }

        /* ===== 资讯卡片 ===== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 184, 64, 0.25);
        }
        .news-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-section-alt);
        }
        .news-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary-light);
            background: rgba(11, 43, 92, 0.07);
            padding: 3px 14px;
            border-radius: 40px;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.2px;
        }
        .news-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .news-card:hover .card-title {
            color: var(--primary-light);
        }
        .news-card .card-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
            margin-top: auto;
        }
        .news-card .card-meta i {
            margin-right: 4px;
        }
        .news-card .card-meta a {
            color: var(--primary-light);
            font-weight: 500;
            font-size: 0.8rem;
        }
        .news-card .card-meta a:hover {
            color: var(--accent-hover);
        }

        /* ===== 资讯分类标签 ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .category-tabs .cat-tab {
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            background: var(--bg-card);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .category-tabs .cat-tab:hover {
            border-color: var(--accent);
            color: var(--primary);
            background: var(--accent-soft);
        }
        .category-tabs .cat-tab.active {
            background: var(--primary);
            color: var(--text-light);
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(11, 43, 92, 0.2);
        }
        .category-tabs .cat-tab i {
            margin-right: 6px;
            font-size: 0.8rem;
        }

        /* ===== 特色板块 ===== */
        .feature-grid .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            height: 100%;
            text-align: center;
        }
        .feature-grid .feature-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 184, 64, 0.2);
        }
        .feature-grid .feature-item .feature-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 16px;
            background: var(--accent-soft);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-hover);
            transition: all var(--transition);
        }
        .feature-grid .feature-item:hover .feature-icon {
            background: var(--accent);
            color: var(--text-light);
        }
        .feature-grid .feature-item h5 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .feature-grid .feature-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== 热门列表 ===== */
        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .hot-list li:hover {
            border-color: rgba(232, 184, 64, 0.2);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .hot-list li .hot-num {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent);
            min-width: 32px;
            line-height: 1.4;
        }
        .hot-list li .hot-content {
            flex: 1;
        }
        .hot-list li .hot-content .hot-title {
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .hot-list li:hover .hot-title {
            color: var(--primary-light);
        }
        .hot-list li .hot-content .hot-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .hot-list li .hot-badge {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 40px;
            background: rgba(232, 184, 64, 0.12);
            color: var(--accent-hover);
            white-space: nowrap;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stats-grid .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .stats-grid .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .stats-grid .stat-card .s-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stats-grid .stat-card .s-num i {
            color: var(--accent);
            font-size: 1.6rem;
            margin-right: 6px;
        }
        .stats-grid .stat-card .s-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(232, 184, 64, 0.2);
        }
        .faq-item .faq-q {
            padding: 18px 22px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 0.98rem;
            transition: background var(--transition);
        }
        .faq-item .faq-q:hover {
            background: rgba(11, 43, 92, 0.02);
        }
        .faq-item .faq-q i {
            color: var(--accent);
            transition: transform var(--transition);
        }
        .faq-item .faq-q[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            isolation: isolate;
            padding: 70px 0;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 48, 0.88) 30%, rgba(11, 43, 92, 0.75) 80%);
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 38px;
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(232, 184, 64, 0.3);
        }
        .cta-section .cta-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 184, 64, 0.35);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            border-top: 4px solid var(--accent);
        }
        .site-footer .logo {
            color: var(--text-light) !important;
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .site-footer .logo span {
            background: none;
            -webkit-text-fill-color: var(--text-light);
        }
        .site-footer .logo i {
            color: var(--accent);
        }
        .site-footer h6 {
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
            font-size: 0.95rem;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            line-height: 2.2;
            transition: color var(--transition);
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            margin-top: 28px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom span {
            margin: 4px 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 60px;
                padding-bottom: 72px;
            }
            .site-header {
                height: 60px;
            }
            .site-header .logo {
                font-size: 1.1rem;
            }
            .site-header .logo i {
                font-size: 1.3rem;
            }
            .nav-list {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            /* 移动端展开菜单 */
            .nav-list.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                padding: 12px 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                gap: 2px;
            }
            .nav-list.mobile-open .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .mobile-bottom-nav {
                display: block;
            }

            .page-hero {
                padding: 50px 0 60px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .page-hero h1 i {
                font-size: 1.3rem;
            }
            .page-hero p {
                font-size: 0.98rem;
            }
            .page-hero .hero-stats {
                gap: 20px;
            }
            .page-hero .hero-stats .stat-item .stat-num {
                font-size: 1.4rem;
            }

            .section-title {
                font-size: 1.4rem;
            }
            .section-sub {
                font-size: 0.92rem;
                margin-bottom: 28px;
            }

            .news-card .card-img {
                height: 170px;
            }
            .news-card .card-body {
                padding: 16px 18px 18px;
            }
            .news-card .card-title {
                font-size: 1rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stats-grid .stat-card {
                padding: 20px 14px;
            }
            .stats-grid .stat-card .s-num {
                font-size: 1.6rem;
            }

            .feature-grid .feature-item {
                padding: 20px 16px;
            }

            .cta-section {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .cta-btn {
                padding: 12px 28px;
                font-size: 0.95rem;
            }

            .site-footer {
                padding: 32px 0 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }

            .category-tabs .cat-tab {
                font-size: 0.82rem;
                padding: 6px 16px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .page-hero .hero-stats {
                flex-direction: column;
                gap: 12px;
                align-items: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .news-card .card-img {
                height: 140px;
            }
            .hot-list li {
                flex-wrap: wrap;
                padding: 14px 16px;
            }
            .hot-list li .hot-num {
                font-size: 1rem;
                min-width: 24px;
            }
            .hot-list li .hot-badge {
                font-size: 0.65rem;
                padding: 1px 10px;
            }
            .category-tabs {
                gap: 6px;
            }
            .category-tabs .cat-tab {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
            .mobile-bottom-nav .bottom-item {
                padding: 4px 8px;
                min-width: 44px;
            }
            .mobile-bottom-nav .bottom-item i {
                font-size: 1rem;
            }
            .mobile-bottom-nav .bottom-item span {
                font-size: 0.5rem;
            }
        }

        /* ===== 辅助类 ===== */
        .bg-alt {
            background: var(--bg-section-alt);
        }
        .bg-white {
            background: var(--bg-card);
        }
        .mt-section {
            margin-top: 0;
        }
        .py-section {
            padding: 70px 0;
        }
        @media (max-width: 768px) {
            .py-section {
                padding: 44px 0;
            }
        }

        /* ===== Bootstrap 5 覆写 ===== */
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            padding: 10px 24px;
            transition: all var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(11, 43, 92, 0.2);
        }
        .btn-outline-primary {
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .form-control {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 10px 16px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 184, 64, 0.15);
        }
        .card {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
        }
        .badge {
            border-radius: 40px;
            font-weight: 500;
            padding: 4px 14px;
        }