/* roulang page: index */
:root {
            --primary: #0f1d3a;
            --primary-light: #152850;
            --primary-mid: #1c3360;
            --accent: #c8943e;
            --accent-light: #d9a94e;
            --accent-pale: #f9f0dc;
            --text: #1a1a1a;
            --text-strong: #0d0d0d;
            --text-mid: #3d4450;
            --text-light: #6b7280;
            --text-lighter: #9ca3af;
            --bg: #f5f6f8;
            --bg-alt: #eef0f4;
            --white: #ffffff;
            --border: #dfe2e8;
            --border-light: #eef0f4;
            --radius-xs: 4px;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.03);
            --shadow-sm: 0 2px 6px rgba(0,0,0,0.05);
            --shadow: 0 4px 14px rgba(0,0,0,0.07);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.09);
            --shadow-lg: 0 12px 36px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 50px rgba(0,0,0,0.16);
            --font: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

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

        body{
            font-family:var(--font);
            font-size:16px;
            line-height:1.7;
            color:var(--text);
            background:var(--bg);
            overflow-x:hidden;
            min-height:100vh;
        }

        a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
        img{max-width:100%;height:auto;display:block}
        button{cursor:pointer;font-family:inherit;border:none;outline:none}
        input,textarea{font-family:inherit;outline:none}

        .container{
            width:100%;
            max-width:var(--max-width);
            margin:0 auto;
            padding:0 24px;
        }

        /* Header & Navigation */
        .header{
            position:sticky;
            top:0;
            z-index:1000;
            background:var(--white);
            border-bottom:1px solid var(--border-light);
            box-shadow:var(--shadow-xs);
            height:var(--nav-height);
            transition:box-shadow var(--transition);
        }
        .header.scrolled{box-shadow:var(--shadow-sm)}
        .header-inner{
            display:flex;
            align-items:center;
            justify-content:space-between;
            height:var(--nav-height);
        }
        .logo{
            display:flex;
            align-items:center;
            gap:10px;
            font-size:1.25rem;
            font-weight:700;
            color:var(--primary);
            letter-spacing:-0.01em;
            white-space:nowrap;
            transition:opacity var(--transition-fast);
        }
        .logo:hover{opacity:0.85}
        .logo-icon{
            width:40px;
            height:40px;
            border-radius:var(--radius-sm);
            background:linear-gradient(135deg,var(--primary) 0%,var(--primary-mid) 100%);
            display:flex;
            align-items:center;
            justify-content:center;
            color:var(--accent-light);
            font-weight:900;
            font-size:1.1rem;
            flex-shrink:0;
        }
        .nav-list{
            display:flex;
            align-items:center;
            gap:4px;
            list-style:none;
        }
        .nav-list li a{
            display:inline-flex;
            align-items:center;
            padding:8px 18px;
            border-radius:var(--radius);
            font-size:0.95rem;
            font-weight:500;
            color:var(--text-mid);
            transition:all var(--transition-fast);
            white-space:nowrap;
        }
        .nav-list li a:hover{
            color:var(--primary);
            background:var(--bg-alt);
        }
        .nav-list li a.active{
            color:var(--accent);
            background:var(--accent-pale);
            font-weight:600;
        }
        .nav-cta{
            margin-left:8px;
            padding:9px 20px;
            border-radius:var(--radius);
            background:var(--accent);
            color:#fff !important;
            font-weight:600;
            font-size:0.9rem;
            transition:all var(--transition);
            white-space:nowrap;
        }
        .nav-cta:hover{
            background:var(--accent-light);
            transform:translateY(-1px);
            box-shadow:var(--shadow-sm);
            color:#fff !important;
        }
        .mobile-toggle{
            display:none;
            flex-direction:column;
            gap:5px;
            background:none;
            padding:6px;
            border-radius:var(--radius-xs);
            transition:background var(--transition-fast);
        }
        .mobile-toggle:hover{background:var(--bg-alt)}
        .mobile-toggle span{
            display:block;
            width:24px;
            height:2.5px;
            background:var(--primary);
            border-radius:3px;
            transition:all var(--transition);
        }
        .mobile-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
        .mobile-toggle.open span:nth-child(2){opacity:0}
        .mobile-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

        /* Hero */
        .hero{
            position:relative;
            background:linear-gradient(160deg,var(--primary) 0%,var(--primary-mid) 40%,#1a3c6e 100%);
            padding:80px 0 100px;
            overflow:hidden;
            color:#fff;
        }
        .hero-bg{
            position:absolute;
            inset:0;
            background-image:url('/assets/images/backpic/back-1.png');
            background-size:cover;
            background-position:center;
            opacity:0.22;
            pointer-events:none;
        }
        .hero-particles{
            position:absolute;
            inset:0;
            background:radial-gradient(ellipse at 30% 50%,rgba(200,148,62,0.15) 0%,transparent 60%),
                        radial-gradient(ellipse at 70% 30%,rgba(255,255,255,0.04) 0%,transparent 50%);
            pointer-events:none;
        }
        .hero-inner{
            position:relative;
            z-index:2;
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:50px;
            align-items:center;
        }
        .hero-tag{
            display:inline-block;
            padding:6px 16px;
            border-radius:20px;
            background:rgba(255,255,255,0.12);
            border:1px solid rgba(255,255,255,0.2);
            font-size:0.85rem;
            font-weight:500;
            margin-bottom:20px;
            letter-spacing:0.02em;
            backdrop-filter:blur(4px);
        }
        .hero h1{
            font-size:3rem;
            font-weight:800;
            line-height:1.2;
            letter-spacing:-0.02em;
            margin-bottom:20px;
            color:#fff;
        }
        .hero h1 .accent-word{color:var(--accent-light)}
        .hero-desc{
            font-size:1.1rem;
            line-height:1.7;
            color:rgba(255,255,255,0.8);
            margin-bottom:32px;
            max-width:500px;
        }
        .hero-btns{
            display:flex;
            gap:14px;
            flex-wrap:wrap;
        }
        .btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            padding:12px 26px;
            border-radius:var(--radius);
            font-size:0.95rem;
            font-weight:600;
            transition:all var(--transition);
            white-space:nowrap;
            letter-spacing:0.01em;
        }
        .btn-primary{
            background:var(--accent);
            color:#fff;
            box-shadow:0 4px 16px rgba(200,148,62,0.35);
        }
        .btn-primary:hover{
            background:var(--accent-light);
            transform:translateY(-2px);
            box-shadow:0 8px 28px rgba(200,148,62,0.45);
        }
        .btn-outline{
            background:transparent;
            color:#fff;
            border:2px solid rgba(255,255,255,0.5);
        }
        .btn-outline:hover{
            background:rgba(255,255,255,0.08);
            border-color:#fff;
            transform:translateY(-2px);
        }
        .btn-sm{padding:8px 18px;font-size:0.85rem;border-radius:var(--radius-sm)}
        .btn-lg{padding:15px 32px;font-size:1.05rem;border-radius:var(--radius-lg)}
        .hero-visual{
            display:flex;
            align-items:center;
            justify-content:center;
        }
        .hero-card-stack{
            position:relative;
            width:100%;
            max-width:420px;
        }
        .hero-float-card{
            background:rgba(255,255,255,0.06);
            backdrop-filter:blur(12px);
            border:1px solid rgba(255,255,255,0.18);
            border-radius:var(--radius-lg);
            padding:28px;
            color:#fff;
        }
        .hero-stat-row{
            display:flex;
            gap:30px;
            margin-top:20px;
        }
        .hero-stat .stat-num{
            font-size:2rem;
            font-weight:800;
            color:var(--accent-light);
            line-height:1;
        }
        .hero-stat .stat-label{
            font-size:0.8rem;
            color:rgba(255,255,255,0.7);
            margin-top:4px;
        }

        /* Sections */
        .section{padding:80px 0}
        .section-sm{padding:50px 0}
        .section-alt{background:var(--white)}
        .section-dark{background:var(--primary);color:#fff}
        .section-label{
            display:inline-block;
            font-size:0.8rem;
            font-weight:700;
            text-transform:uppercase;
            letter-spacing:0.06em;
            color:var(--accent);
            margin-bottom:10px;
        }
        .section-title{
            font-size:2.2rem;
            font-weight:800;
            letter-spacing:-0.01em;
            margin-bottom:14px;
            color:var(--text-strong);
            line-height:1.25;
        }
        .section-dark .section-title{color:#fff}
        .section-subtitle{
            font-size:1.05rem;
            color:var(--text-light);
            max-width:620px;
            margin-bottom:40px;
            line-height:1.65;
        }
        .section-dark .section-subtitle{color:rgba(255,255,255,0.7)}
        .section-header{text-align:center;margin-bottom:50px}
        .section-header-left{text-align:left;margin-bottom:40px}

        /* Cards Grid */
        .card-grid{
            display:grid;
            grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
            gap:24px;
        }
        .card-grid-3{grid-template-columns:repeat(3,1fr)}
        .card-grid-4{grid-template-columns:repeat(4,1fr)}
        .card{
            background:var(--white);
            border-radius:var(--radius-lg);
            border:1px solid var(--border-light);
            overflow:hidden;
            transition:all var(--transition);
            display:flex;
            flex-direction:column;
        }
        .card:hover{
            transform:translateY(-4px);
            box-shadow:var(--shadow-md);
            border-color:var(--border);
        }
        .card-img{
            width:100%;
            height:200px;
            object-fit:cover;
            display:block;
            background:var(--bg-alt);
        }
        .card-body{padding:22px 20px 20px;flex:1;display:flex;flex-direction:column}
        .card-tag{
            display:inline-block;
            font-size:0.75rem;
            font-weight:600;
            color:var(--accent);
            background:var(--accent-pale);
            padding:3px 10px;
            border-radius:12px;
            margin-bottom:10px;
            width:fit-content;
        }
        .card-title{
            font-size:1.08rem;
            font-weight:700;
            margin-bottom:8px;
            color:var(--text-strong);
            line-height:1.4;
            display:-webkit-box;
            -webkit-line-clamp:2;
            -webkit-box-orient:vertical;
            overflow:hidden;
        }
        .card-desc{
            font-size:0.9rem;
            color:var(--text-light);
            line-height:1.55;
            flex:1;
            display:-webkit-box;
            -webkit-line-clamp:3;
            -webkit-box-orient:vertical;
            overflow:hidden;
        }
        .card-meta{
            font-size:0.8rem;
            color:var(--text-lighter);
            margin-top:12px;
            padding-top:12px;
            border-top:1px solid var(--border-light);
        }
        .card-link{
            display:inline-flex;
            align-items:center;
            gap:6px;
            margin-top:12px;
            font-weight:600;
            font-size:0.9rem;
            color:var(--accent);
            transition:gap var(--transition-fast);
        }
        .card-link:hover{gap:10px}

        /* Feature Row */
        .feature-row{
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:50px;
            align-items:center;
        }
        .feature-img-wrap{
            border-radius:var(--radius-lg);
            overflow:hidden;
            box-shadow:var(--shadow-lg);
        }
        .feature-img-wrap img{width:100%;height:auto}
        .feature-list{list-style:none;display:flex;flex-direction:column;gap:16px;margin-top:20px}
        .feature-list li{
            display:flex;
            align-items:flex-start;
            gap:12px;
            font-size:0.95rem;
            color:var(--text-mid);
            line-height:1.55;
        }
        .feature-list li::before{
            content:'';
            flex-shrink:0;
            width:8px;
            height:8px;
            border-radius:50%;
            background:var(--accent);
            margin-top:8px;
        }

        /* Stats Bar */
        .stats-bar{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:30px;
            text-align:center;
        }
        .stat-item .stat-value{
            font-size:2.8rem;
            font-weight:800;
            color:var(--accent);
            line-height:1;
            letter-spacing:-0.02em;
        }
        .stat-item .stat-unit{font-size:1.2rem;font-weight:600}
        .stat-item .stat-desc{
            font-size:0.9rem;
            color:var(--text-light);
            margin-top:6px;
        }
        .section-dark .stat-desc{color:rgba(255,255,255,0.65)}

        /* List block */
        .post-list{
            display:flex;
            flex-direction:column;
            gap:0;
            border-radius:var(--radius-lg);
            overflow:hidden;
            border:1px solid var(--border-light);
            background:var(--white);
        }
        .post-list-item{
            display:flex;
            align-items:center;
            gap:18px;
            padding:16px 20px;
            border-bottom:1px solid var(--border-light);
            transition:background var(--transition-fast);
        }
        .post-list-item:last-child{border-bottom:none}
        .post-list-item:hover{background:var(--bg)}
        .post-list-thumb{
            width:56px;
            height:56px;
            border-radius:var(--radius-sm);
            object-fit:cover;
            flex-shrink:0;
            background:var(--bg-alt);
        }
        .post-list-info{flex:1;min-width:0}
        .post-list-title{
            font-weight:600;
            font-size:0.95rem;
            color:var(--text-strong);
            white-space:nowrap;
            overflow:hidden;
            text-overflow:ellipsis;
            margin-bottom:2px;
        }
        .post-list-meta{font-size:0.8rem;color:var(--text-lighter)}
        .post-list-arrow{color:var(--text-lighter);flex-shrink:0;transition:transform var(--transition-fast)}
        .post-list-item:hover .post-list-arrow{transform:translateX(4px);color:var(--accent)}

        /* FAQ */
        .faq-list{
            display:flex;
            flex-direction:column;
            gap:12px;
            max-width:800px;
            margin:0 auto;
        }
        .faq-item{
            background:var(--white);
            border:1px solid var(--border-light);
            border-radius:var(--radius);
            overflow:hidden;
            transition:all var(--transition);
        }
        .faq-item:hover{border-color:var(--border);box-shadow:var(--shadow-sm)}
        .faq-q{
            padding:18px 22px;
            font-weight:600;
            font-size:1rem;
            cursor:pointer;
            display:flex;
            justify-content:space-between;
            align-items:center;
            color:var(--text-strong);
            user-select:none;
        }
        .faq-q::after{
            content:'+';
            font-size:1.3rem;
            font-weight:400;
            color:var(--accent);
            transition:transform var(--transition);
        }
        .faq-item.open .faq-q::after{content:'−';transform:rotate(180deg)}
        .faq-a{
            padding:0 22px 18px;
            font-size:0.92rem;
            color:var(--text-mid);
            line-height:1.65;
            display:none;
        }
        .faq-item.open .faq-a{display:block}

        /* CTA */
        .cta-section{
            background:linear-gradient(150deg,var(--primary) 0%,var(--primary-mid) 50%,#1a3c6e 100%);
            color:#fff;
            text-align:center;
            padding:70px 0;
            position:relative;
            overflow:hidden;
        }
        .cta-section::before{
            content:'';
            position:absolute;
            inset:0;
            background:radial-gradient(ellipse at 50% 50%,rgba(200,148,62,0.2) 0%,transparent 60%);
            pointer-events:none;
        }
        .cta-inner{position:relative;z-index:1}
        .cta-title{font-size:2rem;font-weight:800;margin-bottom:14px}
        .cta-desc{font-size:1.05rem;color:rgba(255,255,255,0.75);max-width:550px;margin:0 auto 28px}
        .cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

        /* Footer */
        .footer{
            background:var(--primary);
            color:rgba(255,255,255,0.8);
            padding:50px 0 30px;
            border-top:1px solid rgba(255,255,255,0.08);
        }
        .footer-grid{
            display:grid;
            grid-template-columns:2fr 1fr 1fr;
            gap:40px;
            margin-bottom:30px;
        }
        .footer-brand .footer-logo{
            font-size:1.2rem;
            font-weight:700;
            color:#fff;
            margin-bottom:10px;
            display:block;
        }
        .footer-desc{font-size:0.9rem;line-height:1.6;color:rgba(255,255,255,0.6);max-width:320px}
        .footer-col h4{
            font-size:0.95rem;
            font-weight:700;
            color:#fff;
            margin-bottom:16px;
            letter-spacing:0.02em;
        }
        .footer-links{list-style:none;display:flex;flex-direction:column;gap:9px}
        .footer-links a{
            font-size:0.88rem;
            color:rgba(255,255,255,0.6);
            transition:color var(--transition-fast);
        }
        .footer-links a:hover{color:var(--accent-light)}
        .footer-bottom{
            border-top:1px solid rgba(255,255,255,0.1);
            padding-top:20px;
            text-align:center;
            font-size:0.82rem;
            color:rgba(255,255,255,0.45);
        }

        /* Breadcrumb */
        .breadcrumb{
            display:flex;
            align-items:center;
            gap:8px;
            font-size:0.85rem;
            color:var(--text-light);
            padding:16px 0;
            flex-wrap:wrap;
        }
        .breadcrumb a{color:var(--text-light);transition:color var(--transition-fast)}
        .breadcrumb a:hover{color:var(--accent)}
        .breadcrumb .sep{color:var(--text-lighter)}

        /* Empty state */
        .empty-state{
            text-align:center;
            padding:40px 20px;
            color:var(--text-light);
            font-size:0.95rem;
        }

        /* Responsive */
        @media(max-width:1024px){
            .hero-inner{grid-template-columns:1fr;gap:40px}
            .hero-visual{order:-1}
            .hero h1{font-size:2.4rem}
            .hero-card-stack{max-width:320px}
            .feature-row{grid-template-columns:1fr;gap:30px}
            .card-grid-3{grid-template-columns:repeat(2,1fr)}
            .card-grid-4{grid-template-columns:repeat(2,1fr)}
            .stats-bar{grid-template-columns:repeat(2,1fr);gap:24px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
        }

        @media(max-width:768px){
            :root{--nav-height:62px}
            .container{padding:0 16px}
            .section{padding:50px 0}
            .section-title{font-size:1.7rem}
            .hero{padding:50px 0 60px}
            .hero h1{font-size:1.9rem}
            .hero-desc{font-size:0.95rem}
            .nav-list{
                position:fixed;
                top:var(--nav-height);
                left:0;
                right:0;
                background:var(--white);
                flex-direction:column;
                padding:16px;
                gap:4px;
                border-bottom:1px solid var(--border-light);
                box-shadow:var(--shadow-md);
                display:none;
                z-index:999;
            }
            .nav-list.open{display:flex}
            .nav-list li a{padding:12px 16px;width:100%}
            .nav-cta{margin-left:0;text-align:center;width:100%;justify-content:center}
            .mobile-toggle{display:flex}
            .card-grid{grid-template-columns:1fr}
            .card-grid-3{grid-template-columns:1fr}
            .card-grid-4{grid-template-columns:repeat(2,1fr)}
            .feature-row{grid-template-columns:1fr}
            .stats-bar{grid-template-columns:repeat(2,1fr);gap:20px}
            .stat-item .stat-value{font-size:2rem}
            .footer-grid{grid-template-columns:1fr;gap:24px}
            .post-list-item{flex-wrap:wrap;gap:10px}
            .post-list-thumb{width:44px;height:44px}
        }

        @media(max-width:520px){
            .hero h1{font-size:1.6rem}
            .hero-btns{flex-direction:column;gap:10px}
            .btn{width:100%;text-align:center}
            .section-title{font-size:1.4rem}
            .card-grid-4{grid-template-columns:1fr}
            .stats-bar{grid-template-columns:1fr 1fr;gap:16px}
            .stat-item .stat-value{font-size:1.6rem}
            .hero-stat-row{gap:16px}
            .hero-float-card{padding:18px}
            .cta-title{font-size:1.5rem}
            .card-img{height:160px}
        }

/* roulang page: article */
:root {
            --primary: #c62828;
            --primary-hover: #b71c1c;
            --secondary: #1b1b2f;
            --accent: #e8f0fe;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 24px rgba(0,0,0,0.1);
            --radius: 12px;
            --radius-sm: 8px;
            --transition: 0.2s ease;
            --max-width: 1200px;
            --gap: 24px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }
        button, input { font-family: inherit; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

        /* Header & Navigation */
        .header {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            background: rgba(255,255,255,0.95);
        }
        .header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
        .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary), #d32f2f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 32px;
            align-items: center;
        }
        .nav-list a {
            font-weight: 500;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
            color: var(--text);
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width var(--transition);
        }
        .nav-list a:hover { color: var(--primary); }
        .nav-list a:hover::after { width: 100%; }
        .nav-list a.active { color: var(--primary); font-weight: 600; }
        .nav-list a.active::after { width: 100%; }
        .nav-cta {
            background: var(--primary);
            color: white !important;
            padding: 8px 20px !important;
            border-radius: 50px;
            font-weight: 600;
            transition: background var(--transition), transform 0.15s;
            margin-left: 12px;
        }
        .nav-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }
        .nav-cta::after { display: none; }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .mobile-toggle span {
            width: 24px;
            height: 2px;
            background: var(--text);
            transition: var(--transition);
        }

        /* Article Banner */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.7)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: white;
            text-align: center;
        }
        .article-hero .container { position: relative; z-index: 1; }
        .breadcrumb {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.75);
            margin-bottom: 24px;
        }
        .breadcrumb a { color: rgba(255,255,255,0.9); }
        .breadcrumb a:hover { text-decoration: underline; }
        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 24px;
            color: rgba(255,255,255,0.85);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .category-tag {
            background: var(--primary);
            color: white;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            display: inline-block;
        }

        /* Article Content */
        .article-content-section {
            padding: 60px 0;
        }
        .article-body {
            max-width: 800px;
            margin: 0 auto;
            background: var(--surface);
            border-radius: var(--radius);
            padding: 48px;
            box-shadow: var(--shadow-md);
        }
        .article-body h2 {
            font-size: 1.8rem;
            margin: 32px 0 16px;
            color: var(--secondary);
        }
        .article-body h3 {
            font-size: 1.4rem;
            margin: 24px 0 12px;
            color: var(--secondary);
        }
        .article-body p {
            margin-bottom: 18px;
            color: var(--text-light);
            line-height: 1.8;
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            background: #fef2f2;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--secondary);
        }
        .not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found h2 {
            font-size: 2rem;
            margin-bottom: 16px;
            color: var(--secondary);
        }
        .btn {
            display: inline-block;
            padding: 12px 32px;
            background: var(--primary);
            color: white;
            border-radius: 50px;
            font-weight: 600;
            transition: background var(--transition), transform 0.15s;
        }
        .btn:hover { background: var(--primary-hover); transform: translateY(-2px); }

        /* Footer */
        .footer {
            background: var(--secondary);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: white;
            display: block;
            margin-bottom: 12px;
        }
        .footer-desc { line-height: 1.7; }
        .footer-col h4 {
            color: white;
            margin-bottom: 16px;
            font-size: 1.1rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: rgba(255,255,255,0.65);
            transition: color var(--transition);
        }
        .footer-links a:hover { color: white; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 0.9rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-hero h1 { font-size: 2.2rem; }
            .article-body { padding: 32px; }
        }
        @media (max-width: 768px) {
            .header .container { height: 60px; }
            .nav-list {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--surface);
                flex-direction: column;
                padding: 24px;
                gap: 20px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: 99;
            }
            .nav-list.open { transform: translateY(0); }
            .mobile-toggle { display: flex; }
            .nav-cta { margin-left: 0; width: fit-content; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .article-hero { padding: 60px 0 40px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-body { padding: 24px; margin: 0 8px; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.5rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0f2044;
            --color-primary-light: #1a365d;
            --color-accent: #e8590c;
            --color-accent-hover: #c94a0a;
            --color-surface: #f8fafc;
            --color-card-bg: #ffffff;
            --color-text-main: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-border-light: #e2e8f0;
            --color-border-medium: #cbd5e1;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.12);
            --transition-fast: 0.2s cubic-bezier(0.4,0,0.2,1);
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --nav-height: 72px;
        }

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

        html{scroll-behavior:smooth;scroll-padding-top:var(--nav-height)}

        body{
            font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue','Arial','sans-serif';
            line-height:1.7;
            color:var(--color-text-main);
            background-color:var(--color-surface);
            -webkit-font-smoothing:antialiased;
            -moz-osx-font-smoothing:grayscale;
            overflow-x:hidden;
        }

        img{max-width:100%;height:auto;display:block}
        a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
        button{cursor:pointer;border:none;outline:none;font-family:inherit}
        input{font-family:inherit;outline:none}

        /* ========== 导航 ========== */
        .site-header{
            position:sticky;
            top:0;
            z-index:1000;
            background:rgba(255,255,255,0.92);
            backdrop-filter:blur(16px);
            -webkit-backdrop-filter:blur(16px);
            border-bottom:1px solid var(--color-border-light);
            box-shadow:var(--shadow-xs);
            height:var(--nav-height);
            display:flex;
            align-items:center;
            transition:box-shadow var(--transition-smooth),background var(--transition-smooth);
        }
        .site-header.scrolled{box-shadow:var(--shadow-md);background:rgba(255,255,255,0.97)}
        .header-inner{
            width:100%;
            max-width:1280px;
            margin:0 auto;
            padding:0 24px;
            display:flex;
            align-items:center;
            justify-content:space-between;
            height:100%;
        }
        .header-logo{
            font-size:1.25rem;
            font-weight:700;
            color:var(--color-primary);
            letter-spacing:-0.01em;
            white-space:nowrap;
            display:flex;
            align-items:center;
            gap:10px;
            transition:opacity var(--transition-fast);
        }
        .header-logo:hover{opacity:0.82}
        .header-logo .logo-icon{
            width:38px;
            height:38px;
            background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-light) 100%);
            border-radius:var(--radius-sm);
            display:flex;
            align-items:center;
            justify-content:center;
            color:#fff;
            font-size:1.1rem;
        }
        .nav-list{display:flex;list-style:none;align-items:center;gap:6px}
        .nav-list li a{
            display:inline-flex;
            align-items:center;
            padding:10px 18px;
            border-radius:var(--radius-md);
            font-size:0.95rem;
            font-weight:500;
            color:var(--color-text-soft);
            transition:all var(--transition-fast);
            white-space:nowrap;
            position:relative;
        }
        .nav-list li a:hover{color:var(--color-primary);background:rgba(15,32,68,0.04)}
        .nav-list li a.active{
            color:var(--color-primary);
            background:rgba(15,32,68,0.07);
            font-weight:600;
        }
        .nav-list li a.nav-cta{
            background:var(--color-accent);
            color:#fff;
            font-weight:600;
            padding:10px 22px;
            border-radius:var(--radius-md);
            transition:all var(--transition-smooth);
            box-shadow:0 2px 8px rgba(232,89,12,0.25);
        }
        .nav-list li a.nav-cta:hover{
            background:var(--color-accent-hover);
            color:#fff;
            box-shadow:0 4px 16px rgba(232,89,12,0.35);
            transform:translateY(-1px);
        }
        .mobile-toggle{
            display:none;
            background:none;
            border:none;
            font-size:1.5rem;
            color:var(--color-text-main);
            padding:8px;
            border-radius:var(--radius-sm);
            transition:background var(--transition-fast);
            cursor:pointer;
        }
        .mobile-toggle:hover{background:rgba(15,32,68,0.05)}
        .mobile-toggle:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:var(--radius-sm)}

        @media(max-width:768px){
            .mobile-toggle{display:flex;align-items:center;justify-content:center}
            .nav-list{
                position:fixed;
                top:var(--nav-height);
                left:0;
                right:0;
                background:#fff;
                flex-direction:column;
                padding:16px 20px;
                gap:4px;
                border-bottom:1px solid var(--color-border-light);
                box-shadow:var(--shadow-lg);
                transform:translateY(-110%);
                opacity:0;
                pointer-events:none;
                transition:all var(--transition-smooth);
                z-index:999;
            }
            .nav-list.open{
                transform:translateY(0);
                opacity:1;
                pointer-events:auto;
            }
            .nav-list li{width:100%}
            .nav-list li a{
                width:100%;
                padding:14px 18px;
                font-size:1rem;
                justify-content:center;
                border-radius:var(--radius-md);
            }
            .nav-list li a.nav-cta{margin-top:4px}
        }

        /* ========== 容器 ========== */
        .container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
        .container-narrow{max-width:1080px}

        /* ========== 分类Banner ========== */
        .category-banner{
            position:relative;
            background:linear-gradient(135deg,var(--color-primary) 0%,#0d1b3a 40%,var(--color-primary-light) 100%);
            padding:60px 0;
            overflow:hidden;
        }
        .category-banner::before{
            content:'';
            position:absolute;
            inset:0;
            background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity:0.18;
            z-index:0;
        }
        .category-banner::after{
            content:'';
            position:absolute;
            bottom:0;
            left:0;
            right:0;
            height:60%;
            background:linear-gradient(to top,rgba(15,32,68,0.6),transparent);
            z-index:1;
        }
        .category-banner .banner-content{
            position:relative;
            z-index:2;
            text-align:center;
        }
        .category-banner .banner-badge{
            display:inline-block;
            background:rgba(255,255,255,0.12);
            color:rgba(255,255,255,0.9);
            padding:6px 16px;
            border-radius:20px;
            font-size:0.85rem;
            font-weight:500;
            letter-spacing:0.04em;
            margin-bottom:16px;
            backdrop-filter:blur(4px);
            border:1px solid rgba(255,255,255,0.15);
        }
        .category-banner h1{
            font-size:2.6rem;
            font-weight:800;
            color:#fff;
            letter-spacing:-0.02em;
            margin-bottom:12px;
            line-height:1.2;
        }
        .category-banner .banner-desc{
            font-size:1.1rem;
            color:rgba(255,255,255,0.8);
            max-width:600px;
            margin:0 auto;
            line-height:1.7;
        }
        .category-banner .banner-stats{
            display:flex;
            justify-content:center;
            gap:40px;
            margin-top:28px;
            flex-wrap:wrap;
        }
        .category-banner .stat-item{
            text-align:center;
        }
        .category-banner .stat-value{
            font-size:1.8rem;
            font-weight:700;
            color:#fff;
            line-height:1;
        }
        .category-banner .stat-label{
            font-size:0.85rem;
            color:rgba(255,255,255,0.7);
            margin-top:4px;
        }

        /* ========== 主内容区 ========== */
        .main-content{padding:48px 0 60px}
        .content-layout{display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:start}

        /* 筛选栏 */
        .filter-bar{
            display:flex;
            align-items:center;
            gap:10px;
            flex-wrap:wrap;
            margin-bottom:28px;
            padding-bottom:20px;
            border-bottom:1px solid var(--color-border-light);
        }
        .filter-bar .filter-label{
            font-weight:600;
            color:var(--color-text-main);
            font-size:0.9rem;
            white-space:nowrap;
            margin-right:4px;
        }
        .filter-bar .filter-tag{
            padding:7px 16px;
            border-radius:20px;
            font-size:0.85rem;
            font-weight:500;
            cursor:pointer;
            border:1px solid var(--color-border-medium);
            background:#fff;
            color:var(--color-text-soft);
            transition:all var(--transition-fast);
            white-space:nowrap;
            user-select:none;
        }
        .filter-bar .filter-tag:hover{
            border-color:var(--color-primary);
            color:var(--color-primary);
            background:rgba(15,32,68,0.03);
        }
        .filter-bar .filter-tag.active{
            background:var(--color-primary);
            color:#fff;
            border-color:var(--color-primary);
            font-weight:600;
            box-shadow:0 2px 8px rgba(15,32,68,0.2);
        }
        .filter-bar .filter-tag:focus-visible{
            outline:2px solid var(--color-accent);
            outline-offset:2px;
        }

        /* 文章网格 */
        .articles-grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:24px;
        }
        .article-card{
            background:var(--color-card-bg);
            border-radius:var(--radius-lg);
            overflow:hidden;
            border:1px solid var(--color-border-light);
            transition:all var(--transition-smooth);
            box-shadow:var(--shadow-xs);
            display:flex;
            flex-direction:column;
            height:100%;
        }
        .article-card:hover{
            transform:translateY(-4px);
            box-shadow:var(--shadow-lg);
            border-color:var(--color-border-medium);
        }
        .article-card .card-img-wrap{
            position:relative;
            overflow:hidden;
            aspect-ratio:16/10;
            background:#f1f5f9;
        }
        .article-card .card-img-wrap img{
            width:100%;
            height:100%;
            object-fit:cover;
            transition:transform var(--transition-smooth);
        }
        .article-card:hover .card-img-wrap img{transform:scale(1.04)}
        .article-card .card-tag{
            position:absolute;
            top:12px;
            left:12px;
            background:var(--color-accent);
            color:#fff;
            padding:4px 12px;
            border-radius:14px;
            font-size:0.75rem;
            font-weight:600;
            letter-spacing:0.03em;
            z-index:2;
        }
        .article-card .card-tag.hot-tag{
            background:#dc2626;
        }
        .article-card .card-body{
            padding:16px 18px 20px;
            flex:1;
            display:flex;
            flex-direction:column;
        }
        .article-card .card-title{
            font-size:1.05rem;
            font-weight:700;
            color:var(--color-text-main);
            line-height:1.5;
            margin-bottom:8px;
            display:-webkit-box;
            -webkit-line-clamp:2;
            -webkit-box-orient:vertical;
            overflow:hidden;
            transition:color var(--transition-fast);
        }
        .article-card:hover .card-title{color:var(--color-primary)}
        .article-card .card-excerpt{
            font-size:0.88rem;
            color:var(--color-text-soft);
            line-height:1.6;
            display:-webkit-box;
            -webkit-line-clamp:2;
            -webkit-box-orient:vertical;
            overflow:hidden;
            flex:1;
            margin-bottom:12px;
        }
        .article-card .card-meta{
            display:flex;
            align-items:center;
            gap:14px;
            font-size:0.8rem;
            color:var(--color-text-muted);
            padding-top:10px;
            border-top:1px solid var(--color-border-light);
        }
        .article-card .card-meta i{margin-right:3px;font-size:0.7rem}

        /* 分页 */
        .pagination-wrap{
            display:flex;
            justify-content:center;
            align-items:center;
            gap:8px;
            margin-top:40px;
            flex-wrap:wrap;
        }
        .page-btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            min-width:40px;
            height:40px;
            padding:0 14px;
            border-radius:var(--radius-md);
            border:1px solid var(--color-border-medium);
            background:#fff;
            color:var(--color-text-soft);
            font-weight:500;
            font-size:0.9rem;
            cursor:pointer;
            transition:all var(--transition-fast);
            user-select:none;
        }
        .page-btn:hover{
            border-color:var(--color-primary);
            color:var(--color-primary);
            background:rgba(15,32,68,0.03);
        }
        .page-btn.active{
            background:var(--color-primary);
            color:#fff;
            border-color:var(--color-primary);
            font-weight:600;
            box-shadow:0 2px 8px rgba(15,32,68,0.2);
        }
        .page-btn.disabled{
            opacity:0.4;
            pointer-events:none;
            cursor:not-allowed;
        }
        .page-btn:focus-visible{
            outline:2px solid var(--color-accent);
            outline-offset:2px;
        }

        /* ========== 侧边栏 ========== */
        .sidebar{position:sticky;top:calc(var(--nav-height) + 24px)}
        .sidebar-card{
            background:#fff;
            border-radius:var(--radius-lg);
            border:1px solid var(--color-border-light);
            padding:22px 20px;
            margin-bottom:20px;
            box-shadow:var(--shadow-xs);
        }
        .sidebar-card h3{
            font-size:1.1rem;
            font-weight:700;
            color:var(--color-text-main);
            margin-bottom:16px;
            padding-bottom:12px;
            border-bottom:2px solid var(--color-primary);
            display:inline-block;
            letter-spacing:-0.01em;
        }
        .sidebar-card .ranking-item{
            display:flex;
            align-items:flex-start;
            gap:12px;
            padding:10px 0;
            border-bottom:1px solid var(--color-border-light);
            transition:all var(--transition-fast);
            cursor:pointer;
        }
        .sidebar-card .ranking-item:last-child{border-bottom:none}
        .sidebar-card .ranking-item:hover{background:rgba(15,32,68,0.02);margin:0 -8px;padding-left:8px;padding-right:8px;border-radius:var(--radius-sm)}
        .sidebar-card .rank-num{
            font-size:1.4rem;
            font-weight:800;
            color:var(--color-accent);
            min-width:28px;
            text-align:center;
            line-height:1;
            flex-shrink:0;
        }
        .sidebar-card .rank-num.top1{color:#dc2626}
        .sidebar-card .rank-num.top2{color:#e8590c}
        .sidebar-card .rank-num.top3{color:#d97706}
        .sidebar-card .rank-info{flex:1;min-width:0}
        .sidebar-card .rank-title{
            font-size:0.9rem;
            font-weight:600;
            color:var(--color-text-main);
            line-height:1.4;
            display:-webkit-box;
            -webkit-line-clamp:2;
            -webkit-box-orient:vertical;
            overflow:hidden;
        }
        .sidebar-card .rank-views{
            font-size:0.78rem;
            color:var(--color-text-muted);
            margin-top:2px;
        }
        .tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
        .tag-cloud .cloud-tag{
            padding:6px 14px;
            border-radius:18px;
            font-size:0.82rem;
            font-weight:500;
            background:rgba(15,32,68,0.04);
            color:var(--color-text-soft);
            cursor:pointer;
            transition:all var(--transition-fast);
            border:1px solid transparent;
            white-space:nowrap;
        }
        .tag-cloud .cloud-tag:hover{
            background:var(--color-primary);
            color:#fff;
            border-color:var(--color-primary);
            box-shadow:0 2px 8px rgba(15,32,68,0.18);
        }

        /* ========== 统计区 ========== */
        .stats-section{
            background:linear-gradient(135deg,var(--color-primary) 0%,#0d1b3a 100%);
            padding:50px 0;
            position:relative;
            overflow:hidden;
        }
        .stats-section::before{
            content:'';
            position:absolute;
            inset:0;
            background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity:0.1;
            z-index:0;
        }
        .stats-section .section-content{position:relative;z-index:1}
        .stats-section .section-title{
            text-align:center;
            color:#fff;
            font-size:1.8rem;
            font-weight:700;
            margin-bottom:36px;
            letter-spacing:-0.01em;
        }
        .stats-grid{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:24px;
            text-align:center;
        }
        .stat-card{
            background:rgba(255,255,255,0.06);
            border-radius:var(--radius-lg);
            padding:28px 20px;
            border:1px solid rgba(255,255,255,0.1);
            transition:all var(--transition-smooth);
            backdrop-filter:blur(4px);
        }
        .stat-card:hover{
            background:rgba(255,255,255,0.11);
            transform:translateY(-3px);
            border-color:rgba(255,255,255,0.25);
        }
        .stat-card .stat-icon{
            font-size:2rem;
            color:var(--color-accent);
            margin-bottom:12px;
        }
        .stat-card .stat-number{
            font-size:2.2rem;
            font-weight:800;
            color:#fff;
            line-height:1;
            margin-bottom:6px;
        }
        .stat-card .stat-desc{
            font-size:0.9rem;
            color:rgba(255,255,255,0.7);
        }

        /* ========== FAQ ========== */
        .faq-section{padding:56px 0;background:#fff}
        .faq-section .section-header{text-align:center;margin-bottom:36px}
        .faq-section .section-header h2{
            font-size:1.8rem;
            font-weight:700;
            color:var(--color-text-main);
            letter-spacing:-0.01em;
            margin-bottom:8px;
        }
        .faq-section .section-header p{color:var(--color-text-soft);font-size:1rem}
        .faq-list{max-width:800px;margin:0 auto}
        .faq-item{
            border:1px solid var(--color-border-light);
            border-radius:var(--radius-md);
            margin-bottom:12px;
            overflow:hidden;
            transition:all var(--transition-fast);
            background:#fff;
        }
        .faq-item:hover{border-color:var(--color-border-medium);box-shadow:var(--shadow-sm)}
        .faq-question{
            width:100%;
            text-align:left;
            padding:18px 20px;
            font-size:1rem;
            font-weight:600;
            color:var(--color-text-main);
            background:none;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:12px;
            cursor:pointer;
            transition:background var(--transition-fast);
        }
        .faq-question:hover{background:rgba(15,32,68,0.02)}
        .faq-question:focus-visible{outline:2px solid var(--color-accent);outline-offset:-2px;border-radius:var(--radius-md)}
        .faq-question i{
            transition:transform var(--transition-smooth);
            color:var(--color-text-muted);
            font-size:0.9rem;
            flex-shrink:0;
        }
        .faq-item.open .faq-question i{transform:rotate(180deg);color:var(--color-accent)}
        .faq-answer{
            max-height:0;
            overflow:hidden;
            transition:max-height var(--transition-smooth),padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer{max-height:300px}
        .faq-answer-inner{padding:0 20px 18px;color:var(--color-text-soft);font-size:0.93rem;line-height:1.75}

        /* ========== CTA ========== */
        .cta-section{
            padding:60px 0;
            background:linear-gradient(135deg,var(--color-primary-light) 0%,var(--color-primary) 100%);
            position:relative;
            overflow:hidden;
            text-align:center;
        }
        .cta-section::before{
            content:'';
            position:absolute;
            inset:0;
            background:radial-gradient(ellipse at 30% 50%,rgba(232,89,12,0.2),transparent 60%);
            z-index:0;
        }
        .cta-section .cta-content{position:relative;z-index:1}
        .cta-section h2{
            font-size:2rem;
            font-weight:700;
            color:#fff;
            margin-bottom:12px;
            letter-spacing:-0.01em;
        }
        .cta-section p{
            font-size:1.05rem;
            color:rgba(255,255,255,0.8);
            max-width:520px;
            margin:0 auto 28px;
        }
        .cta-btn{
            display:inline-flex;
            align-items:center;
            gap:8px;
            padding:14px 36px;
            font-size:1.05rem;
            font-weight:600;
            background:var(--color-accent);
            color:#fff;
            border-radius:var(--radius-md);
            transition:all var(--transition-smooth);
            box-shadow:0 4px 16px rgba(232,89,12,0.35);
            cursor:pointer;
        }
        .cta-btn:hover{
            background:var(--color-accent-hover);
            transform:translateY(-2px);
            box-shadow:0 8px 24px rgba(232,89,12,0.45);
        }
        .cta-btn:focus-visible{outline:2px solid #fff;outline-offset:3px;border-radius:var(--radius-md)}

        /* ========== 页脚 ========== */
        .footer{
            background:#0a1628;
            color:rgba(255,255,255,0.8);
            padding:48px 0 0;
        }
        .footer-grid{
            display:grid;
            grid-template-columns:1.5fr 1fr 1fr;
            gap:40px;
            padding-bottom:36px;
            border-bottom:1px solid rgba(255,255,255,0.1);
        }
        .footer-logo{
            font-size:1.3rem;
            font-weight:700;
            color:#fff;
            letter-spacing:-0.01em;
        }
        .footer-desc{font-size:0.9rem;color:rgba(255,255,255,0.55);margin-top:10px;line-height:1.7;max-width:300px}
        .footer-col h4{
            font-size:1rem;
            font-weight:600;
            color:#fff;
            margin-bottom:14px;
            letter-spacing:-0.01em;
        }
        .footer-links{list-style:none;display:flex;flex-direction:column;gap:8px}
        .footer-links li a{
            font-size:0.9rem;
            color:rgba(255,255,255,0.6);
            transition:color var(--transition-fast);
        }
        .footer-links li a:hover{color:#fff}
        .footer-bottom{
            padding:20px 0;
            text-align:center;
            font-size:0.85rem;
            color:rgba(255,255,255,0.4);
        }

        /* ========== 响应式 ========== */
        @media(max-width:1024px){
            .content-layout{grid-template-columns:1fr;gap:28px}
            .sidebar{position:static}
            .sidebar .sidebar-card:last-child{margin-bottom:0}
            .articles-grid{grid-template-columns:repeat(2,1fr);gap:18px}
            .category-banner h1{font-size:2.1rem}
            .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
            .category-banner .banner-stats{gap:24px}
        }

        @media(max-width:768px){
            .category-banner{padding:40px 0}
            .category-banner h1{font-size:1.7rem}
            .category-banner .banner-desc{font-size:0.95rem}
            .category-banner .stat-value{font-size:1.4rem}
            .articles-grid{grid-template-columns:1fr;gap:16px}
            .main-content{padding:32px 0 40px}
            .filter-bar{gap:6px;margin-bottom:20px}
            .filter-bar .filter-tag{padding:5px 12px;font-size:0.8rem}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
            .stat-card{padding:20px 14px}
            .stat-card .stat-number{font-size:1.7rem}
            .cta-section h2{font-size:1.5rem}
            .cta-section{padding:40px 0}
            .faq-section{padding:40px 0}
            .faq-section .section-header h2{font-size:1.5rem}
            .pagination-wrap{gap:5px}
            .page-btn{min-width:34px;height:34px;font-size:0.82rem;padding:0 10px}
            .sidebar-card{padding:16px 14px}
        }
        @media(max-width:520px){
            .category-banner h1{font-size:1.4rem}
            .category-banner .banner-stats{gap:16px}
            .category-banner .stat-value{font-size:1.2rem}
            .category-banner .stat-label{font-size:0.75rem}
            .stats-grid{grid-template-columns:1fr;gap:10px}
            .filter-bar .filter-tag{font-size:0.75rem;padding:4px 10px}
        }