/* roulang page: index */
:root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --primary-dark: #0f2440;
            --accent: #c9a84c;
            --accent-light: #e8cc7a;
            --accent-dark: #a88a2e;
            --bg-light: #f7f9fc;
            --bg-white: #ffffff;
            --text-dark: #1a2332;
            --text-muted: #5e6f8d;
            --text-light: #ffffff;
            --border-light: #e9edf4;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
            .container {
                padding: 0 16px;
            }
        }
        /* header / nav */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary);
            background: rgba(30,58,95,0.06);
        }
        .nav-links a.active {
            font-weight: 600;
            color: var(--primary);
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 40px;
            padding: 0 16px;
            border: 1px solid var(--border-light);
            flex: 1;
            max-width: 320px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(42,82,152,0.12);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 10px 8px;
            width: 100%;
            outline: none;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px;
        }
        @media (max-width: 768px) {
            .nav-wrap {
                height: 64px;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border-light);
                padding: 16px 24px;
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .search-box {
                max-width: 200px;
            }
            .mobile-toggle {
                display: block;
            }
        }
        @media (max-width: 520px) {
            .search-box {
                max-width: 140px;
            }
            .logo {
                font-size: 1.2rem;
            }
        }
        /* hero */
        .hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            min-height: 520px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 80px 0 100px;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 20px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255,255,255,0.3);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 400px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
                padding: 0 8px;
            }
            .hero-content {
                padding: 60px 0 80px;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .btn {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
        }
        /* section titles */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 48px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                margin-bottom: 32px;
            }
        }
        /* cards grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: #eef2f7;
        }
        .card-body {
            padding: 24px;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(201,168,76,0.15);
            color: var(--accent-dark);
            margin-bottom: 10px;
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .card-footer {
            padding: 16px 24px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        /* category cards */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .cat-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .cat-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(30,58,95,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--primary);
        }
        .cat-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .cat-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .cat-link {
            font-weight: 600;
            color: var(--primary-light);
            font-size: 0.9rem;
        }
        .cat-link i {
            margin-left: 4px;
            transition: var(--transition);
        }
        .cat-link:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 768px) {
            .cat-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        /* stats */
        .stats-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            color: var(--text-light);
        }
        .stat-item {
            text-align: center;
        }
        .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent);
        }
        .stat-label {
            font-size: 0.95rem;
            opacity: 0.8;
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .stats-wrap {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
                padding: 36px 20px;
            }
            .stat-num {
                font-size: 1.8rem;
            }
        }
        /* list */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .list-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .list-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .list-item .badge {
            background: rgba(201,168,76,0.12);
            color: var(--accent-dark);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .list-item .title {
            flex: 1;
            font-weight: 500;
            color: var(--primary);
        }
        .list-item .meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        @media (max-width: 640px) {
            .list-item {
                flex-wrap: wrap;
                gap: 8px;
                padding: 16px 18px;
            }
            .list-item .meta {
                width: 100%;
                text-align: left;
                font-size: 0.8rem;
            }
        }
        /* faq */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            padding: 24px 28px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-q {
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .faq-q i {
            color: var(--accent);
            margin-top: 2px;
        }
        .faq-a {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            padding-left: 24px;
        }
        @media (max-width: 768px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }
        /* cta */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            color: var(--text-light);
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .btn {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .cta-section .btn:hover {
            background: var(--accent-light);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }
        /* footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.75);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: var(--text-light);
            margin-bottom: 12px;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 0.9rem;
            opacity: 0.7;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            padding: 4px 0;
            opacity: 0.7;
        }
        .footer-col a:hover {
            opacity: 1;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            opacity: 0.6;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        /* empty state */
        .empty-state {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
        }
        .empty-state i {
            font-size: 2.4rem;
            margin-bottom: 16px;
            opacity: 0.4;
        }
        /* brand highlight */
        .brand-highlight {
            color: var(--accent);
        }
        /* breadcrumb inner pages */
        .breadcrumb {
            padding: 16px 0;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        /* additional spacing */
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mt-40 { margin-top: 40px; }
        .gap-12 { gap: 12px; }
        .gap-16 { gap: 16px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .text-center { text-align: center; }
        .hidden { display: none; }

/* roulang page: article */
:root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #e8eefb;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-dark: #0f172a;
            --text: #1e293b;
            --text-light: #64748b;
            --text-white: #f1f5f9;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px 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);
        }
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
        html{scroll-behavior:smooth;}
        body{font-family:'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--text);background:var(--bg);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;border-radius:var(--radius-sm);}
        .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
        .container-narrow{max-width:860px;}

        /* header */
        .site-header{background:rgba(255,255,255,0.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;transition:var(--transition);}
        .site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
        .logo{font-size:1.5rem;font-weight:800;color:var(--primary);letter-spacing:-0.02em;display:flex;align-items:center;gap:2px;}
        .logo span{color:var(--accent);font-weight:700;}
        .nav-links{display:flex;align-items:center;gap:6px;list-style:none;}
        .nav-links li a{display:block;padding:8px 18px;border-radius:40px;font-size:0.95rem;font-weight:500;color:var(--text-light);transition:var(--transition);position:relative;}
        .nav-links li a:hover{color:var(--primary);background:var(--primary-light);}
        .nav-links li a.active{color:var(--primary);background:var(--primary-light);font-weight:600;}
        .nav-search{display:flex;align-items:center;background:var(--bg-alt);border:1px solid var(--border);border-radius:40px;padding:0 8px 0 18px;transition:var(--transition);max-width:280px;width:100%;}
        .nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,86,219,0.10);}
        .nav-search input{border:none;background:transparent;padding:10px 8px;font-size:0.9rem;outline:none;width:100%;color:var(--text);}
        .nav-search input::placeholder{color:var(--text-light);}
        .nav-search button{background:var(--primary);color:#fff;border:none;border-radius:40px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition);flex-shrink:0;}
        .nav-search button:hover{background:var(--primary-dark);}
        .nav-toggle{display:none;background:none;border:none;font-size:1.5rem;color:var(--text);cursor:pointer;padding:6px;border-radius:8px;}
        .nav-toggle:hover{background:var(--bg-alt);}

        /* article hero */
        .article-hero{background:var(--bg-dark);position:relative;overflow:hidden;padding:80px 0 60px;}
        .article-hero::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:0.15;pointer-events:none;}
        .article-hero .container{position:relative;z-index:2;}
        .article-hero .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:0.9rem;color:rgba(255,255,255,0.6);margin-bottom:20px;}
        .article-hero .breadcrumb a{color:rgba(255,255,255,0.7);}
        .article-hero .breadcrumb a:hover{color:#fff;}
        .article-hero .breadcrumb .sep{margin:0 4px;}
        .article-hero h1{font-size:2.6rem;font-weight:800;color:#fff;line-height:1.25;max-width:780px;margin-bottom:16px;letter-spacing:-0.02em;}
        .article-hero .meta{display:flex;flex-wrap:wrap;gap:16px;color:rgba(255,255,255,0.7);font-size:0.95rem;}
        .article-hero .meta span{display:flex;align-items:center;gap:6px;}
        .article-hero .meta i{color:var(--accent);}

        /* article body */
        .article-body{padding:56px 0 80px;background:var(--bg);}
        .article-body .content{font-size:1.05rem;line-height:1.9;color:var(--text);}
        .article-body .content p{margin-bottom:1.6em;}
        .article-body .content h2,.article-body .content h3,.article-body .content h4{color:var(--text);font-weight:700;margin-top:2em;margin-bottom:0.8em;line-height:1.3;}
        .article-body .content h2{font-size:1.7rem;border-bottom:2px solid var(--primary-light);padding-bottom:0.4em;}
        .article-body .content h3{font-size:1.35rem;}
        .article-body .content ul,.article-body .content ol{padding-left:1.5em;margin-bottom:1.6em;}
        .article-body .content li{margin-bottom:0.4em;}
        .article-body .content img{border-radius:var(--radius);margin:1.8em 0;box-shadow:var(--shadow);}
        .article-body .content blockquote{border-left:4px solid var(--primary);background:var(--primary-light);padding:1em 1.5em;margin:1.8em 0;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text);}
        .article-body .content a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}
        .article-body .content a:hover{color:var(--primary-dark);}
        .article-body .content .tag{display:inline-block;background:var(--primary-light);color:var(--primary);padding:2px 14px;border-radius:40px;font-size:0.85rem;font-weight:500;margin:0 4px 4px 0;}

        /* not found */
        .not-found{text-align:center;padding:100px 24px;max-width:560px;margin:0 auto;}
        .not-found i{font-size:3.6rem;color:var(--text-light);margin-bottom:20px;display:block;}
        .not-found h2{font-size:1.8rem;font-weight:700;margin-bottom:12px;}
        .not-found p{color:var(--text-light);margin-bottom:28px;font-size:1.05rem;}
        .not-found .btn{display:inline-flex;align-items:center;gap:8px;}

        /* btn */
        .btn{display:inline-flex;align-items:center;gap:8px;padding:12px 32px;border-radius:40px;font-weight:600;font-size:1rem;border:none;cursor:pointer;transition:var(--transition);}
        .btn-primary{background:var(--primary);color:#fff;}
        .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,86,219,0.25);}
        .btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary);}
        .btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px);}
        .btn-accent{background:var(--accent);color:#fff;}
        .btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,158,11,0.30);}

        /* related section */
        .related-section{background:var(--bg-alt);padding:64px 0;}
        .related-section h2{font-size:1.8rem;font-weight:700;margin-bottom:32px;text-align:center;}
        .related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;}
        .related-card{background:#fff;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{height:180px;overflow:hidden;}
        .related-card .card-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition);}
        .related-card:hover .card-img img{transform:scale(1.05);}
        .related-card .card-body{padding:20px;display:flex;flex-direction:column;gap:8px;}
        .related-card .card-body .cat{font-size:0.8rem;color:var(--primary);font-weight:600;text-transform:uppercase;letter-spacing:0.03em;}
        .related-card .card-body h3{font-size:1.1rem;font-weight:700;line-height:1.4;color:var(--text);}
        .related-card .card-body h3 a{color:inherit;}
        .related-card .card-body h3 a:hover{color:var(--primary);}
        .related-card .card-body p{font-size:0.92rem;color:var(--text-light);line-height:1.6;}
        .related-card .card-body .date{font-size:0.82rem;color:var(--text-light);}

        /* CTA */
        .cta-section{background:var(--bg-dark);position:relative;overflow:hidden;padding:72px 0;text-align:center;}
        .cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:0.10;pointer-events:none;}
        .cta-section .container{position:relative;z-index:2;}
        .cta-section h2{font-size:2rem;font-weight:800;color:#fff;margin-bottom:12px;}
        .cta-section p{color:rgba(255,255,255,0.75);font-size:1.1rem;max-width:560px;margin:0 auto 28px;}

        /* footer */
        .site-footer{background:var(--bg-dark);color:var(--text-white);padding:56px 0 0;border-top:1px solid rgba(255,255,255,0.06);}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.06);}
        .footer-brand .logo{font-size:1.6rem;color:#fff;margin-bottom:12px;}
        .footer-brand .logo span{color:var(--accent);}
        .footer-brand p{color:rgba(255,255,255,0.6);font-size:0.95rem;line-height:1.7;max-width:320px;}
        .footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:16px;letter-spacing:0.02em;}
        .footer-col a{display:block;color:rgba(255,255,255,0.55);font-size:0.93rem;padding:5px 0;transition:var(--transition);}
        .footer-col a:hover{color:var(--accent);padding-left:4px;}
        .footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:20px 0;font-size:0.88rem;color:rgba(255,255,255,0.4);gap:12px;}

        /* mobile nav */
        @media(max-width:1024px){
            .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
            .article-hero h1{font-size:2.2rem;}
        }
        @media(max-width:768px){
            .site-header .container{height:64px;}
            .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(16px);flex-direction:column;padding:16px 24px 24px;gap:4px;border-bottom:1px solid var(--border);box-shadow:0 8px 32px rgba(0,0,0,0.08);}
            .nav-links.open{display:flex;}
            .nav-links li a{padding:10px 16px;width:100%;border-radius:8px;}
            .nav-search{max-width:100%;}
            .nav-toggle{display:block;}
            .article-hero{padding:56px 0 44px;}
            .article-hero h1{font-size:1.65rem;}
            .article-body{padding:36px 0 60px;}
            .article-body .content{font-size:1rem;}
            .related-grid{grid-template-columns:1fr;}
            .footer-grid{grid-template-columns:1fr;gap:24px;}
            .footer-bottom{flex-direction:column;text-align:center;}
            .cta-section h2{font-size:1.6rem;}
        }
        @media(max-width:520px){
            .container{padding:0 16px;}
            .article-hero h1{font-size:1.4rem;}
            .article-hero .meta{font-size:0.85rem;gap:10px;}
            .article-body .content h2{font-size:1.35rem;}
            .article-body .content h3{font-size:1.15rem;}
            .btn{padding:10px 24px;font-size:0.95rem;}
        }

/* roulang page: category1 */
:root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --accent: #e8a838;
            --accent-light: #f0c060;
            --accent-dark: #c89020;
            --bg-light: #f8f9fb;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d3d5c;
            --text-light: #6b6b8a;
            --border: #e2e6ef;
            --shadow-sm: 0 2px 8px rgba(26, 58, 92, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 58, 92, 0.10);
            --shadow-lg: 0 16px 50px rgba(26, 58, 92, 0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        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);
        }
        .page-header {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 100px 0 70px;
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-header .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-header h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .page-header h1 span {
            color: var(--accent);
        }
        .page-header p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            text-align: center;
            max-width: 620px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .section-title span {
            color: var(--accent-dark);
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 4px;
            margin: 0 auto 16px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 32px 28px;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--accent-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.2;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            box-shadow: 0 4px 15px rgba(232, 168, 56, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(232, 168, 56, 0.45);
            color: var(--primary-dark);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent);
            color: var(--accent);
        }
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 500;
            background: rgba(232, 168, 56, 0.12);
            color: var(--accent-dark);
            border: 1px solid rgba(232, 168, 56, 0.2);
        }
        .tag-blue {
            background: rgba(26, 58, 92, 0.08);
            color: var(--primary);
            border-color: rgba(26, 58, 92, 0.15);
        }
        .badge-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            font-size: 1.4rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            margin-bottom: 14px;
        }
        .badge-icon.accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .step-list {
            list-style: none;
            counter-reset: step;
        }
        .step-list li {
            counter-increment: step;
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            align-items: flex-start;
        }
        .step-list li:last-child {
            border-bottom: none;
        }
        .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-content h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .step-content p {
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-q {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            gap: 12px;
        }
        .faq-q i {
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-a {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-top: 12px;
            padding-right: 32px;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 80px 0;
            text-align: center;
            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;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin: 48px 0;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.10);
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-3px);
        }
        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
        }
        .site-footer .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }
        .site-footer .logo span {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.95rem;
            margin-top: 12px;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
        }
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .page-header {
                padding: 80px 0 50px;
                min-height: 240px;
            }
            .page-header h1 {
                font-size: 2rem;
            }
            .page-header p {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-num {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .card {
                padding: 24px 20px;
            }
            .step-list li {
                flex-direction: column;
                gap: 10px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-header h1 {
                font-size: 1.6rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-num {
                font-size: 1.4rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.92rem;
            }
        }
        .fade-in {
            animation: fadeUp 0.6s ease forwards;
        }
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .stagger-1 {
            animation-delay: 0.1s;
        }
        .stagger-2 {
            animation-delay: 0.2s;
        }
        .stagger-3 {
            animation-delay: 0.3s;
        }
        .stagger-4 {
            animation-delay: 0.4s;
        }

/* roulang page: category2 */
:root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --secondary-dark: #c88a20;
            --accent: #38b2ac;
            --bg-light: #f8fafc;
            --bg-dark: #0f172a;
            --text-primary: #1e293b;
            --text-secondary: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }
        /* ===== Header & Nav ===== */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.96);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
        }
        .logo span {
            color: var(--secondary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-links li a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(26, 58, 92, 0.06);
        }
        .nav-links li a.active {
            color: #ffffff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 58, 92, 0.25);
        }
        .nav-links li a.active:hover {
            background: var(--primary-light);
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 0 16px;
            flex: 1;
            max-width: 400px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.10);
            background: #ffffff;
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 10px 12px;
            font-size: 0.9rem;
            flex: 1;
            outline: none;
            color: var(--text-primary);
            min-width: 0;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
            padding: 8px 4px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-box button:hover {
            color: var(--primary);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }
        @media (max-width: 1024px) {
            .search-box {
                max-width: 280px;
            }
            .nav-links li a {
                padding: 6px 14px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .menu-toggle {
                display: block;
                order: 3;
            }
            .search-box {
                order: 2;
                max-width: 180px;
                margin: 0 auto;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-links li a.active {
                background: var(--primary);
                color: #fff;
            }
            .logo {
                font-size: 1.25rem;
            }
        }
        @media (max-width: 480px) {
            .search-box {
                max-width: 120px;
            }
            .search-box input {
                padding: 8px 6px;
                font-size: 0.8rem;
            }
            .logo {
                font-size: 1.1rem;
            }
        }
        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 168, 56, 0.15) 0%, transparent 60%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .banner-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .banner-content h1 span {
            color: var(--secondary);
        }
        .banner-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 6px 20px;
            border-radius: 50px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
        }
        .banner-badge i {
            color: var(--secondary);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 40px;
                min-height: 240px;
            }
            .banner-content h1 {
                font-size: 2rem;
            }
            .banner-content p {
                font-size: 1rem;
            }
        }
        @media (max-width: 480px) {
            .banner-content h1 {
                font-size: 1.6rem;
            }
            .banner-content p {
                font-size: 0.9rem;
            }
            .page-banner {
                padding: 44px 0 32px;
                min-height: 200px;
            }
        }
        /* ===== Section Common ===== */
        .section-block {
            padding: 72px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.8;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 24px;
            }
        }
        /* ===== Cards ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .tip-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .tip-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .tip-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-light);
        }
        .tip-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tip-card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(232, 168, 56, 0.12);
            color: var(--secondary-dark);
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .tip-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .tip-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .tip-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .tip-card-meta i {
            margin-right: 6px;
        }
        .tip-card-meta a {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .tip-card-meta a:hover {
            color: var(--secondary);
        }
        @media (max-width: 1024px) {
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 640px) {
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .tip-card-img {
                height: 180px;
            }
            .tip-card-body {
                padding: 18px;
            }
        }
        /* ===== Featured / 精选攻略 ===== */
        .featured-block {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            display: grid;
            grid-template-columns: 1fr 1fr;
            margin-bottom: 48px;
        }
        .featured-block-img {
            width: 100%;
            height: 100%;
            min-height: 320px;
            object-fit: cover;
            background: var(--bg-light);
        }
        .featured-block-content {
            padding: 44px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-block-content .badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--secondary);
            color: #fff;
            margin-bottom: 16px;
            align-self: flex-start;
        }
        .featured-block-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .featured-block-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .featured-block-content .btn-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        @media (max-width: 900px) {
            .featured-block {
                grid-template-columns: 1fr;
            }
            .featured-block-img {
                min-height: 240px;
                max-height: 300px;
            }
            .featured-block-content {
                padding: 32px 28px;
            }
            .featured-block-content h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            .featured-block-content {
                padding: 24px 18px;
            }
            .featured-block-content h2 {
                font-size: 1.3rem;
            }
            .featured-block-img {
                min-height: 180px;
            }
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            justify-content: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(26, 58, 92, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 58, 92, 0.30);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(232, 168, 56, 0.30);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 168, 56, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }
        @media (max-width: 480px) {
            .btn {
                padding: 10px 22px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
        }
        /* ===== 分类标签导航 ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .category-tab {
            padding: 8px 24px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            background: #ffffff;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(26, 58, 92, 0.04);
        }
        .category-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 58, 92, 0.20);
        }
        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            background: #ffffff;
            padding: 32px 20px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-item .number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .number span {
            color: var(--secondary);
        }
        .stat-item .label {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }
        @media (max-width: 900px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 24px 12px;
            }
            .stat-item .number {
                font-size: 2rem;
            }
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-light);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.9rem;
            }
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 540px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }
        @media (max-width: 480px) {
            .cta-section {
                padding: 32px 18px;
                border-radius: var(--radius-md);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 0;
            margin-top: 56px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            font-size: 1.5rem;
            color: #ffffff;
            margin-bottom: 12px;
            display: inline-block;
        }
        .footer-brand .logo span {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            transform: translateX(4px);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }
        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-light);
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        /* ===== Tags ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            background: #ffffff;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .tag:hover {
            border-color: var(--secondary);
            color: var(--secondary-dark);
            background: rgba(232, 168, 56, 0.06);
            transform: translateY(-2px);
        }
        /* ===== 加载更多 ===== */
        .load-more-wrap {
            text-align: center;
            margin-top: 40px;
        }
        /* ===== Responsive extra ===== */
        @media (max-width: 1024px) {
            .container {
                max-width: 100%;
            }
        }
        /* ===== 分隔装饰 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 0 auto 20px;
        }
        .divider-left {
            margin: 0 0 20px;
        }
        /* ===== 精选标签 ===== */
        .hot-badge {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 700;
            background: #ef4444;
            color: #fff;
            letter-spacing: 0.5px;
            margin-left: 8px;
            vertical-align: middle;
        }

/* roulang page: category3 */
:root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #3b82f6;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            background: var(--bg-light);
            color: var(--text-dark);
            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 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 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);
            backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-links a {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(26, 86, 219, 0.06);
        }
        .nav-links a.active {
            color: var(--primary);
            background: rgba(26, 86, 219, 0.1);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0 16px;
            flex: 1;
            max-width: 360px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 10px 8px;
            font-size: 0.9rem;
            outline: none;
            flex: 1;
            color: var(--text-dark);
            min-width: 0;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box svg {
            width: 18px;
            height: 18px;
            color: var(--text-light);
            flex-shrink: 0;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
        }
        .menu-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: var(--transition);
        }
        @media (max-width: 1024px) {
            .search-box {
                max-width: 240px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-bottom: 1px solid var(--border);
                z-index: 99;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 8px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .search-box {
                max-width: 100%;
                flex: 1;
                margin: 0 8px;
            }
        }
        @media (max-width: 480px) {
            .logo {
                font-size: 1.3rem;
            }
            .search-box input {
                font-size: 0.8rem;
                padding: 8px 4px;
            }
        }

        /* ===== Hero Banner ===== */
        .hero-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            overflow: hidden;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
        }
        .hero-banner .bg-img {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-banner .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.7) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 24px 60px;
            max-width: 800px;
        }
        .hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero-content h1 span {
            color: var(--accent);
        }
        .hero-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            padding: 8px 20px;
            border-radius: 40px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-badge svg {
            width: 18px;
            height: 18px;
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .hero-banner {
                min-height: 300px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero-content {
                padding: 60px 16px 40px;
            }
        }
        @media (max-width: 480px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-content p {
                font-size: 0.9rem;
            }
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-title h2 span {
            color: var(--primary);
        }
        .section-title p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
            .section-title {
                margin-bottom: 40px;
            }
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px;
        }
        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(26, 86, 219, 0.08);
            color: var(--primary);
            margin-bottom: 12px;
        }
        .card-tag.green {
            background: rgba(16, 185, 129, 0.1);
            color: #059669;
        }
        .card-tag.amber {
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
        }
        .card-tag.purple {
            background: rgba(139, 92, 246, 0.1);
            color: #7c3aed;
        }

        /* ===== 特色安全列表 ===== */
        .security-feature {
            display: flex;
            gap: 24px;
            padding: 28px 32px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
            align-items: flex-start;
        }
        .security-feature:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .security-feature .icon-box {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.6rem;
        }
        .security-feature .icon-box.blue {
            background: rgba(26, 86, 219, 0.1);
            color: var(--primary);
        }
        .security-feature .icon-box.green {
            background: rgba(16, 185, 129, 0.1);
            color: #059669;
        }
        .security-feature .icon-box.amber {
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
        }
        .security-feature .icon-box.purple {
            background: rgba(139, 92, 246, 0.1);
            color: #7c3aed;
        }
        .security-feature .icon-box.red {
            background: rgba(239, 68, 68, 0.1);
            color: #dc2626;
        }
        .security-feature .text h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .security-feature .text p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        @media (max-width: 640px) {
            .security-feature {
                flex-direction: column;
                padding: 20px;
            }
            .security-feature .icon-box {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 32px 16px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .stat-item .number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        @media (max-width: 480px) {
            .stat-item .number {
                font-size: 2rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: var(--transition);
            color: var(--text-light);
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 80px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: var(--accent);
            color: #1e293b;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 40px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.35);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-btn {
                padding: 14px 32px;
                font-size: 0.95rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 12px;
            display: inline-block;
        }
        .footer-brand .logo span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 20px 0 0;
            font-size: 0.88rem;
            color: var(--text-light);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== 文章列表 ===== */
        .article-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .article-card {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 20px;
            transition: var(--transition);
            align-items: flex-start;
        }
        .article-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .article-card .thumb {
            width: 120px;
            height: 90px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .article-card .info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .article-card .info h4:hover {
            color: var(--primary);
        }
        .article-card .info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .info .meta {
            display: flex;
            gap: 16px;
            margin-top: 8px;
            font-size: 0.78rem;
            color: var(--text-light);
        }
        @media (max-width: 768px) {
            .article-list {
                grid-template-columns: 1fr;
            }
            .article-card {
                flex-direction: column;
            }
            .article-card .thumb {
                width: 100%;
                height: 180px;
            }
        }
        @media (max-width: 480px) {
            .article-card .thumb {
                height: 140px;
            }
        }

        /* ===== 安全等级 ===== */
        .level-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .level-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .level-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }
        .level-item .icon-lg {
            font-size: 2.8rem;
            margin-bottom: 12px;
        }
        .level-item h4 {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .level-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .level-item .level-bar {
            height: 6px;
            border-radius: 6px;
            background: var(--border);
            margin-top: 14px;
            overflow: hidden;
        }
        .level-item .level-bar .fill {
            height: 100%;
            border-radius: 6px;
        }
        .level-item .level-bar .fill.green {
            width: 92%;
            background: #10b981;
        }
        .level-item .level-bar .fill.blue {
            width: 88%;
            background: var(--primary-light);
        }
        .level-item .level-bar .fill.amber {
            width: 78%;
            background: var(--accent);
        }
        .level-item .level-bar .fill.purple {
            width: 85%;
            background: #8b5cf6;
        }