/* roulang page: index */
:root {
            --primary: #1a2a4a;
            --primary-light: #2a4070;
            --secondary: #d4a84b;
            --secondary-light: #e8c06a;
            --accent: #c49a3a;
            --bg-warm: #f9f7f4;
            --bg-cool: #f0f2f5;
            --text-dark: #1a1a2e;
            --text-soft: #4a4a5a;
            --text-muted: #8a8a9a;
            --border-light: #e8e6e2;
            --shadow-sm: 0 2px 8px rgba(26,42,74,0.06);
            --shadow-md: 0 8px 30px rgba(26,42,74,0.08);
            --shadow-lg: 0 20px 50px rgba(26,42,74,0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
        }
        * { margin:0; padding:0; box-sizing:border-box; }
        html { scroll-behavior:smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            background: #fff;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color:inherit; text-decoration:none; transition:var(--transition); }
        img { max-width:100%; height:auto; display:block; }
        button, input, textarea { font-family:inherit; outline:none; }
        .container { max-width:1200px; margin:0 auto; padding:0 24px; }
        .section { padding:80px 0; }
        .section-title { font-size:2rem; font-weight:700; letter-spacing:-0.02em; line-height:1.3; margin-bottom:0.5rem; }
        .section-sub { font-size:1.1rem; color:var(--text-soft); max-width:640px; line-height:1.7; }
        .text-secondary { color:var(--secondary); }

        /* 分屏Hero联动导航 */
        .split-hero {
            display:flex; min-height:100vh; background:var(--primary);
        }
        .split-hero-left {
            flex:1; display:flex; flex-direction:column; padding:28px 48px 60px 48px; position:relative; z-index:2;
        }
        .split-hero-right {
            flex:1; background:var(--primary); position:relative; overflow:hidden; min-height:60vh;
        }
        .split-hero-right .hero-bg {
            position:absolute; inset:0; background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity:0.55; mix-blend-mode:luminosity;
        }
        .split-hero-right .hero-overlay {
            position:absolute; inset:0; background:linear-gradient(135deg, rgba(26,42,74,0.3) 0%, rgba(26,42,74,0.6) 100%);
        }
        .hero-nav {
            display:flex; align-items:center; justify-content:space-between; padding-bottom:20px;
            border-bottom:1px solid rgba(255,255,255,0.08);
        }
        .hero-logo { font-size:1.5rem; font-weight:700; color:#fff; letter-spacing:-0.02em; }
        .hero-logo span { color:var(--secondary); }
        .hero-nav-links { display:flex; gap:32px; align-items:center; }
        .hero-nav-links a { color:rgba(255,255,255,0.7); font-size:0.95rem; font-weight:500; transition:var(--transition); position:relative; }
        .hero-nav-links a:hover, .hero-nav-links a.active { color:#fff; }
        .hero-nav-links a.active::after { content:''; position:absolute; bottom:-4px; left:0; right:0; height:2px; background:var(--secondary); border-radius:2px; }
        .hero-nav-cta {
            background:var(--secondary); color:var(--primary) !important; padding:8px 22px; border-radius:50px;
            font-weight:600; font-size:0.9rem; transition:var(--transition);
        }
        .hero-nav-cta:hover { background:var(--secondary-light); transform:translateY(-1px); box-shadow:0 4px 20px rgba(212,168,75,0.35) !important; }
        .hero-content { flex:1; display:flex; flex-direction:column; justify-content:center; padding:40px 0 20px; }
        .hero-badge {
            display:inline-flex; align-items:center; gap:8px; background:rgba(212,168,75,0.15); color:var(--secondary);
            padding:6px 18px; border-radius:50px; font-size:0.85rem; font-weight:500; margin-bottom:24px; width:fit-content;
            border:1px solid rgba(212,168,75,0.2);
        }
        .hero-title {
            font-size:3.2rem; font-weight:800; color:#fff; line-height:1.15; letter-spacing:-0.03em; max-width:640px;
        }
        .hero-title .highlight { color:var(--secondary); }
        .hero-desc {
            font-size:1.15rem; color:rgba(255,255,255,0.7); max-width:520px; line-height:1.8; margin:20px 0 36px;
        }
        .hero-actions { display:flex; gap:16px; flex-wrap:wrap; }
        .btn-primary {
            display:inline-flex; align-items:center; gap:10px; background:var(--secondary); color:var(--primary);
            padding:14px 34px; border-radius:50px; font-weight:700; font-size:1rem; transition:var(--transition);
            border:none; cursor:pointer;
        }
        .btn-primary:hover { background:var(--secondary-light); transform:translateY(-2px); box-shadow:0 8px 30px rgba(212,168,75,0.3); }
        .btn-outline {
            display:inline-flex; align-items:center; gap:10px; background:transparent; color:#fff;
            padding:14px 34px; border-radius:50px; font-weight:600; font-size:1rem; transition:var(--transition);
            border:1.5px solid rgba(255,255,255,0.25); cursor:pointer;
        }
        .btn-outline:hover { border-color:var(--secondary); color:var(--secondary); transform:translateY(-2px); }

        /* Header for inner pages (复用样式) */
        .site-header {
            background:var(--primary); padding:16px 0; position:sticky; top:0; z-index:100;
            box-shadow:0 2px 20px rgba(26,42,74,0.15);
        }
        .site-header .header-inner { display:flex; align-items:center; justify-content:space-between; }
        .site-header .logo { font-size:1.4rem; font-weight:700; color:#fff; }
        .site-header .logo span { color:var(--secondary); }
        .site-nav { display:flex; gap:28px; align-items:center; }
        .site-nav a { color:rgba(255,255,255,0.7); font-size:0.95rem; font-weight:500; transition:var(--transition); position:relative; }
        .site-nav a:hover, .site-nav a.active { color:#fff; }
        .site-nav a.active::after { content:''; position:absolute; bottom:-4px; left:0; right:0; height:2px; background:var(--secondary); border-radius:2px; }
        .site-nav .nav-cta { background:var(--secondary); color:var(--primary) !important; padding:8px 22px; border-radius:50px; font-weight:600; font-size:0.9rem; }
        .site-nav .nav-cta:hover { background:var(--secondary-light); box-shadow:0 4px 20px rgba(212,168,75,0.3) !important; }
        .mobile-toggle { display:none; background:none; border:none; color:#fff; font-size:1.6rem; cursor:pointer; padding:4px; }

        /* Cards */
        .card {
            background:#fff; border-radius:var(--radius-md); padding:32px 28px; transition:var(--transition);
            border:1px solid var(--border-light); box-shadow:var(--shadow-sm);
        }
        .card:hover { box-shadow:var(--shadow-md); transform:translateY(-4px); }
        .card-icon { width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; font-size:1.5rem; margin-bottom:18px; }
        .card-title { font-size:1.2rem; font-weight:700; margin-bottom:8px; }
        .card-text { color:var(--text-soft); font-size:0.95rem; line-height:1.7; }

        /* 分类入口卡片 */
        .cat-card {
            position:relative; border-radius:var(--radius-md); overflow:hidden; background:#fff;
            border:1px solid var(--border-light); box-shadow:var(--shadow-sm); transition:var(--transition);
            cursor:pointer;
        }
        .cat-card:hover { box-shadow:var(--shadow-md); transform:translateY(-4px); }
        .cat-card-img { height:180px; background:var(--bg-cool); position:relative; overflow:hidden; }
        .cat-card-img img { width:100%; height:100%; object-fit:cover; transition:var(--transition); }
        .cat-card:hover .cat-card-img img { transform:scale(1.05); }
        .cat-card-body { padding:20px 24px 24px; }
        .cat-card-body h3 { font-size:1.15rem; font-weight:700; margin-bottom:6px; }
        .cat-card-body p { color:var(--text-soft); font-size:0.9rem; line-height:1.6; }
        .cat-card-tag {
            display:inline-block; background:rgba(212,168,75,0.12); color:var(--accent); font-size:0.75rem;
            font-weight:600; padding:3px 12px; border-radius:50px; margin-bottom:10px;
        }

        /* 资讯列表项 */
        .news-item {
            display:flex; gap:20px; padding:20px 0; border-bottom:1px solid var(--border-light); transition:var(--transition);
            cursor:default;
        }
        .news-item:last-child { border-bottom:none; }
        .news-item .news-img { width:120px; min-height:84px; border-radius:var(--radius-sm); overflow:hidden; flex-shrink:0; background:var(--bg-cool); }
        .news-item .news-img img { width:100%; height:100%; object-fit:cover; }
        .news-item .news-body { flex:1; min-width:0; }
        .news-item .news-body h4 { font-size:1.05rem; font-weight:600; margin-bottom:6px; transition:var(--transition); }
        .news-item .news-body p { font-size:0.9rem; color:var(--text-soft); line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
        .news-meta { display:flex; gap:16px; align-items:center; margin-top:8px; font-size:0.82rem; color:var(--text-muted); }
        .news-meta .tag { background:var(--bg-cool); padding:2px 12px; border-radius:50px; font-weight:500; }

        /* Stats */
        .stat-card { text-align:center; padding:24px; }
        .stat-number { font-size:2.6rem; font-weight:800; color:var(--primary); line-height:1.1; }
        .stat-label { font-size:0.95rem; color:var(--text-soft); margin-top:6px; }

        /* 流程步骤 */
        .step-item { display:flex; gap:20px; align-items:flex-start; padding:24px 0; border-bottom:1px dashed var(--border-light); }
        .step-item:last-child { border-bottom:none; }
        .step-num {
            width:44px; height:44px; border-radius:50%; background:var(--primary); color:#fff; display:flex;
            align-items:center; justify-content:center; font-weight:700; font-size:1.1rem; flex-shrink:0;
        }
        .step-body h4 { font-size:1.1rem; font-weight:600; margin-bottom:4px; }
        .step-body p { color:var(--text-soft); font-size:0.92rem; line-height:1.7; }

        /* FAQ */
        .faq-item { border-bottom:1px solid var(--border-light); padding:20px 0; cursor:pointer; }
        .faq-item:first-child { padding-top:0; }
        .faq-question { display:flex; justify-content:space-between; align-items:center; font-weight:600; font-size:1.05rem; gap:16px; }
        .faq-question i { color:var(--secondary); transition:var(--transition); font-size:0.9rem; }
        .faq-item.open .faq-question i { transform:rotate(180deg); }
        .faq-answer { max-height:0; overflow:hidden; transition:max-height 0.4s ease, padding 0.3s ease; padding-top:0; color:var(--text-soft); font-size:0.95rem; line-height:1.8; }
        .faq-item.open .faq-answer { max-height:300px; padding-top:16px; }

        /* CTA */
        .cta-section { background:var(--primary); border-radius:var(--radius-lg); padding:64px 48px; position:relative; overflow:hidden; }
        .cta-section::before { content:''; position:absolute; inset:0; background:url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity:0.08; }
        .cta-content { position:relative; z-index:2; text-align:center; }
        .cta-content h2 { font-size:2.2rem; font-weight:700; color:#fff; margin-bottom:12px; }
        .cta-content p { color:rgba(255,255,255,0.7); font-size:1.05rem; max-width:560px; margin:0 auto 32px; }

        /* Footer */
        .site-footer { background:var(--primary); color:rgba(255,255,255,0.6); padding:48px 0 32px; }
        .footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; padding-bottom:32px; border-bottom:1px solid rgba(255,255,255,0.08); }
        .footer-brand .logo { font-size:1.3rem; font-weight:700; color:#fff; margin-bottom:12px; display:inline-block; }
        .footer-brand .logo span { color:var(--secondary); }
        .footer-brand p { font-size:0.9rem; line-height:1.7; max-width:320px; }
        .footer-col h5 { color:#fff; font-size:0.95rem; font-weight:600; margin-bottom:16px; }
        .footer-col a { display:block; font-size:0.88rem; padding:4px 0; color:rgba(255,255,255,0.55); transition:var(--transition); }
        .footer-col a:hover { color:var(--secondary); padding-left:4px; }
        .footer-bottom { padding-top:24px; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; font-size:0.85rem; }
        .footer-social { display:flex; gap:16px; }
        .footer-social a { width:38px; height:38px; border-radius:50%; border:1px solid rgba(255,255,255,0.12); display:flex; align-items:center; justify-content:center; color:rgba(255,255,255,0.5); transition:var(--transition); font-size:0.95rem; }
        .footer-social a:hover { border-color:var(--secondary); color:var(--secondary); background:rgba(212,168,75,0.1); }

        /* 移动端 */
        @media(max-width:1024px) {
            .split-hero { flex-direction:column; min-height:auto; }
            .split-hero-left { padding:24px 28px 40px; }
            .split-hero-right { min-height:40vh; }
            .hero-title { font-size:2.6rem; }
            .section { padding:56px 0; }
            .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
            .cta-section { padding:48px 28px; }
        }
        @media(max-width:768px) {
            .hero-title { font-size:2rem; }
            .hero-desc { font-size:1rem; }
            .hero-nav-links { display:none; }
            .hero-nav-links.mobile-open { display:flex; flex-direction:column; position:absolute; top:70px; left:0; right:0; background:var(--primary); padding:20px 28px; gap:16px; border-bottom:1px solid rgba(255,255,255,0.08); }
            .mobile-toggle { display:block; }
            .site-nav { display:none; }
            .site-nav.mobile-open { display:flex; flex-direction:column; position:absolute; top:60px; left:0; right:0; background:var(--primary); padding:20px 24px; gap:16px; border-bottom:1px solid rgba(255,255,255,0.08); z-index:200; }
            .section-title { font-size:1.6rem; }
            .section-sub { font-size:1rem; }
            .news-item { flex-direction:column; }
            .news-item .news-img { width:100%; height:120px; }
            .footer-grid { grid-template-columns:1fr; gap:24px; }
            .footer-bottom { flex-direction:column; text-align:center; }
            .cta-content h2 { font-size:1.6rem; }
            .stat-number { font-size:2rem; }
            .card { padding:24px 20px; }
            .split-hero-right { min-height:30vh; }
            .hero-actions { flex-direction:column; align-items:flex-start; }
            .btn-primary, .btn-outline { width:100%; justify-content:center; }
        }
        @media(max-width:520px) {
            .container { padding:0 16px; }
            .split-hero-left { padding:20px 16px 32px; }
            .hero-title { font-size:1.7rem; }
            .section { padding:40px 0; }
            .cta-section { padding:36px 20px; border-radius:var(--radius-md); }
            .cta-content h2 { font-size:1.3rem; }
            .card-icon { width:44px; height:44px; font-size:1.2rem; }
            .step-item { gap:14px; }
        }

        /* 辅助 */
        .bg-warm { background:var(--bg-warm); }
        .bg-cool { background:var(--bg-cool); }
        .text-primary { color:var(--primary); }
        .gap-2 { gap:0.5rem; }
        .gap-3 { gap:1rem; }
        .gap-4 { gap:1.5rem; }
        .gap-6 { gap:2rem; }
        .grid-2 { display:grid; grid-template-columns:repeat(2,1fr); }
        .grid-3 { display:grid; grid-template-columns:repeat(3,1fr); }
        .grid-4 { display:grid; grid-template-columns:repeat(4,1fr); }
        @media(max-width:768px) { .grid-2, .grid-3, .grid-4 { grid-template-columns:1fr; } }
        @media(min-width:769px)and(max-width:1024px) { .grid-3 { grid-template-columns:1fr 1fr; } .grid-4 { grid-template-columns:1fr 1fr; } }
        .fade-in { opacity:0; transform:translateY(20px); transition:opacity 0.6s ease, transform 0.6s ease; }
        .fade-in.visible { opacity:1; transform:translateY(0); }

/* roulang page: category1 */
:root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f1f33;
            --accent: #c9a84c;
            --accent-light: #e0c66a;
            --accent-dark: #a8882e;
            --bg-light: #f8f7f4;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border: #e5e7eb;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
        }

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 32px;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .logo span {
            color: var(--accent);
        }
        .logo i {
            font-size: 1.4rem;
            color: var(--accent);
            margin-right: 6px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
            text-decoration: none;
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a:hover {
            background: rgba(26, 58, 92, 0.06);
            color: var(--primary);
        }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(26, 58, 92, 0.25);
        }
        .nav-list a.active i {
            color: var(--accent);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-cta .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 40px;
            padding: 4px 4px 4px 16px;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        .header-cta .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
        }
        .header-cta .search-box input {
            border: none;
            background: transparent;
            padding: 8px 0;
            font-size: 0.9rem;
            outline: none;
            width: 140px;
            color: var(--text-dark);
        }
        .header-cta .search-box button {
            background: var(--primary);
            border: none;
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            cursor: pointer;
            transition: background 0.25s ease;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .header-cta .search-box button:hover {
            background: var(--primary-light);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
        }

        /* ===== Banner ===== */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 80px 0 72px;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: var(--bg-light);
            -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 80'%3E%3Cpath d='M0,40 C300,80 600,0 900,40 C1100,70 1200,30 1200,30 L1200,80 L0,80 Z' fill='%23fff'/%3E%3C/svg%3E") no-repeat bottom/cover;
            mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 80'%3E%3Cpath d='M0,40 C300,80 600,0 900,40 C1100,70 1200,30 1200,30 L1200,80 L0,80 Z' fill='%23fff'/%3E%3C/svg%3E") no-repeat bottom/cover;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
        }
        .banner-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }
        .banner-content h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .banner-content p {
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 24px;
            opacity: 0.9;
            line-height: 1.7;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .banner-tags span {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .banner-tags span i {
            color: var(--accent);
        }

        /* ===== Section ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            text-align: center;
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .section-sub i {
            color: var(--accent);
            margin: 0 4px;
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .card-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all 0.35s ease;
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-light);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            background: var(--bg-light);
        }
        .card-body {
            padding: 24px 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(201, 168, 76, 0.12);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 40px;
            margin-bottom: 12px;
            width: fit-content;
            letter-spacing: 0.3px;
        }
        .card-body .tag i {
            font-size: 0.7rem;
        }
        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .card-body h3 a {
            color: inherit;
            text-decoration: none;
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-body .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }
        .card-body .meta i {
            margin-right: 4px;
        }
        .card-body .meta .btn-sm {
            background: var(--primary);
            color: #fff;
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
            text-decoration: none;
            transition: background 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-body .meta .btn-sm:hover {
            background: var(--primary-light);
        }

        /* ===== Featured List ===== */
        .featured-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px 40px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .featured-list li {
            list-style: none;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
        }
        .featured-list li:last-child {
            border-bottom: none;
        }
        .featured-list .num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .featured-list .num.accent {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .featured-list .item-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .featured-list .item-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Steps / Flow ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all 0.35s ease;
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 8px rgba(201, 168, 76, 0.35);
        }
        .step-card .icon-wrap {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            margin-top: 8px;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--accent-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-dark);
            transition: background 0.2s ease;
        }
        .faq-question:hover {
            background: rgba(201, 168, 76, 0.04);
        }
        .faq-question i {
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.06;
            mix-blend-mode: overlay;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }
        .cta-block p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
            position: relative;
            z-index: 2;
        }
        .cta-block .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            position: relative;
            z-index: 2;
        }
        .cta-block .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 16px rgba(201, 168, 76, 0.35);
        }
        .cta-block .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 168, 76, 0.45);
        }
        .cta-block .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-block .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer-brand .logo span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            opacity: 0.7;
            max-width: 320px;
        }
        .footer-col h5 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 0.88rem;
            padding: 5px 0;
            transition: all 0.25s ease;
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.84rem;
            opacity: 0.6;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.2rem;
            transition: color 0.25s ease;
        }
        .footer-social a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .featured-list {
                grid-template-columns: 1fr;
                padding: 28px 24px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .menu-toggle {
                display: block;
            }
            .header-cta .search-box input {
                width: 100px;
            }

            .category-banner {
                padding: 56px 0 48px;
                min-height: 240px;
            }
            .banner-content h1 {
                font-size: 1.8rem;
            }
            .banner-content p {
                font-size: 1rem;
            }

            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .cta-block {
                padding: 36px 24px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .banner-content h1 {
                font-size: 1.5rem;
            }
            .banner-tags span {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
            .card-body {
                padding: 18px 18px 22px;
            }
            .featured-list {
                padding: 20px 16px;
            }
            .cta-block .btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-block .btn-primary,
            .cta-block .btn-outline {
                text-align: center;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a5276;
            --primary-light: #2980b9;
            --primary-dark: #0e2f44;
            --secondary: #f39c12;
            --secondary-light: #f7c948;
            --bg: #f0f4f8;
            --bg-card: #ffffff;
            --bg-dark: #0e2f44;
            --text: #1e293b;
            --text-weak: #64748b;
            --text-inverse: #ffffff;
            --border: #dce1e8;
            --radius: 0.75rem;
            --radius-sm: 0.5rem;
            --radius-lg: 1rem;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
        .container-narrow { max-width: 800px; margin: 0 auto; padding: 0 1.5rem; }

        /* header */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 100;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(255,255,255,0.98); box-shadow: var(--shadow); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.15rem;
        }
        .logo span { color: var(--secondary); font-weight: 800; }
        .logo i { color: var(--primary-light); margin-right: 0.35rem; font-size: 1.4rem; }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-links a {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-weak);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover { color: var(--primary); background: rgba(26,82,118,0.06); }
        .nav-links a.active { color: var(--primary); background: rgba(26,82,118,0.10); font-weight: 600; }
        .nav-links a.btn-nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            margin-left: 0.5rem;
        }
        .nav-links a.btn-nav-cta:hover { background: var(--primary-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(26,82,118,0.25); }
        .menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 0.25rem; }

        /* hero */
        .article-hero {
            position: relative;
            padding: 8rem 0 4rem;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14,47,68,0.85) 0%, rgba(26,82,118,0.70) 50%, rgba(0,0,0,0.40) 100%);
            z-index: 1;
        }
        .article-hero .container { position: relative; z-index: 2; width: 100%; }
        .article-hero .hero-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }
        .article-hero .category-badge {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            padding: 0.2rem 1rem;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .article-hero .date-badge {
            color: rgba(255,255,255,0.80);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }
        .article-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            max-width: 900px;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .article-hero .hero-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            max-width: 700px;
            line-height: 1.6;
        }

        /* content */
        .article-content-section {
            padding: 4rem 0;
            background: #fff;
        }
        .article-body {
            font-size: 1.1rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body p { margin-bottom: 1.5rem; }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.5rem; padding-left: 1.5rem; }
        .article-body li { margin-bottom: 0.5rem; }
        .article-body blockquote {
            border-left: 4px solid var(--secondary);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: var(--bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-weak);
        }
        .article-body img { border-radius: var(--radius); margin: 2rem 0; box-shadow: var(--shadow); }
        .article-body a { color: var(--primary-light); text-decoration: underline; }
        .article-body a:hover { color: var(--primary); }
        .not-found {
            text-align: center;
            padding: 4rem 2rem;
        }
        .not-found i { font-size: 3rem; color: var(--text-weak); margin-bottom: 1rem; }
        .not-found h2 { font-size: 1.8rem; color: var(--text); margin-bottom: 0.5rem; }
        .not-found p { color: var(--text-weak); margin-bottom: 1.5rem; }
        .not-found .btn-home {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 0.75rem 2rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found .btn-home:hover { background: var(--primary-light); transform: translateY(-2px); }

        /* related */
        .related-section {
            padding: 4rem 0;
            background: var(--bg);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.5rem;
        }
        .related-section .section-sub {
            color: var(--text-weak);
            margin-bottom: 2.5rem;
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card .card-img {
            aspect-ratio: 16/10;
            background-size: cover;
            background-position: center;
            background-color: var(--border);
        }
        .related-card .card-body { padding: 1.25rem; }
        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.4rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .card-meta {
            font-size: 0.8rem;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .related-card .card-body .card-meta .tag {
            background: rgba(26,82,118,0.08);
            color: var(--primary);
            padding: 0.1rem 0.6rem;
            border-radius: 999px;
            font-weight: 500;
        }
        .related-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem;
            color: var(--text-weak);
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* faq */
        .faq-section {
            padding: 4rem 0;
            background: #fff;
        }
        .faq-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-dark);
            text-align: center;
            margin-bottom: 0.5rem;
        }
        .faq-section .section-sub {
            text-align: center;
            color: var(--text-weak);
            margin-bottom: 2.5rem;
        }
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { color: var(--secondary); transition: var(--transition); font-size: 0.85rem; }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
            color: var(--text-weak);
            line-height: 1.7;
            font-size: 0.95rem;
        }
        .faq-answer.open { max-height: 300px; padding: 0 1.5rem 1.25rem; }

        /* cta */
        .cta-section {
            padding: 4rem 0;
            background: var(--primary-dark);
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(255,255,255,0.80);
            max-width: 600px;
            margin: 0 auto 2rem;
            font-size: 1.05rem;
        }
        .cta-section .btn-cta {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 0.9rem 2.5rem;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .cta-section .btn-cta:hover { background: var(--secondary-light); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(243,156,18,0.30); }
        .cta-section .btn-cta i { margin-right: 0.5rem; }

        /* footer */
        .site-footer {
            background: #0a1a2b;
            color: rgba(255,255,255,0.75);
            padding: 4rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff; font-size: 1.4rem; margin-bottom: 0.75rem; display: inline-block; }
        .footer-brand .logo span { color: var(--secondary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); max-width: 320px; }
        .footer-col h5 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 1rem;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            padding: 0.3rem 0;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--secondary); padding-left: 0.25rem; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.40);
            flex-wrap: wrap;
            gap: 1rem;
        }
        .footer-social { display: flex; gap: 1rem; }
        .footer-social a {
            color: rgba(255,255,255,0.40);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { color: var(--secondary); transform: scale(1.15); }

        /* mobile */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
        }
        @media (max-width: 768px) {
            .header-inner { height: 60px; }
            .nav-links { display: none; position: absolute; top: 60px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); flex-direction: column; padding: 1rem; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 0.75rem 1rem; width: 100%; }
            .nav-links a.btn-nav-cta { margin-left: 0; margin-top: 0.25rem; text-align: center; }
            .menu-toggle { display: block; }
            .article-hero { padding: 6rem 0 3rem; min-height: 320px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero .hero-desc { font-size: 1rem; }
            .article-body { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section h2 { font-size: 1.5rem; }
            .container { padding: 0 1rem; }
            .container-narrow { padding: 0 1rem; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.4rem; }
            .article-hero { min-height: 260px; padding: 5rem 0 2rem; }
            .article-body { font-size: 0.95rem; }
            .faq-question { font-size: 0.9rem; padding: 1rem 1.25rem; }
            .cta-section .btn-cta { padding: 0.75rem 1.5rem; font-size: 0.95rem; }
        }