/* roulang page: index */
:root {
            --primary: #0b2d4a;
            --primary-light: #143c5c;
            --primary-lighter: #1c5178;
            --accent: #e8610c;
            --accent-hover: #cf5508;
            --accent-light: #ff7b2e;
            --gold: #d4a843;
            --gold-light: #e8c46c;
            --bg: #f5f6f9;
            --bg-white: #ffffff;
            --bg-light: #fafbfc;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-secondary: #4a4a62;
            --text-light: #6b6b80;
            --text-muted: #9090a5;
            --border: #e2e5ec;
            --border-light: #eef0f5;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-xs: 0 1px 4px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
            --shadow: 0 4px 20px rgba(0,0,0,0.07);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-lg: 0 14px 48px rgba(0,0,0,0.13);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.16);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --container-narrow: 960px;
            --header-height: 72px;
        }

        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
        body{font-family:var(--font-stack);font-size:16px;line-height:1.65;color:var(--text);background:var(--bg);-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,input,textarea,select{font-family:inherit;font-size:inherit}
        button{cursor:pointer;border:none;background:none}
        ul,ol{list-style:none}
        h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--text)}
        h1{font-size:clamp(2rem, 4vw, 3rem)}
        h2{font-size:clamp(1.5rem, 2.8vw, 2.1rem)}
        h3{font-size:clamp(1.15rem, 1.8vw, 1.4rem)}
        p{margin-bottom:0.8rem}
        .container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 24px}
        .container-narrow{max-width:var(--container-narrow);margin:0 auto;padding:0 24px}

        /* ===== HEADER & NAV ===== */
        .site-header{position:sticky;top:0;z-index:1000;background:var(--bg-white);border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-xs);height:var(--header-height);display:flex;align-items:center}
        .site-header .container{display:flex;align-items:center;justify-content:space-between;height:100%}
        .header-logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--primary);letter-spacing:-0.3px;white-space:nowrap;flex-shrink:0}
        .header-logo .logo-icon{width:40px;height:40px;background:var(--accent);border-radius:var(--radius-xs);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem;flex-shrink:0}
        .header-logo .logo-text span{color:var(--accent)}
        .header-nav{display:flex;align-items:center;gap:6px}
        .header-nav a{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);font-weight:600;font-size:0.95rem;color:var(--text-secondary);transition:all var(--transition-fast);position:relative;white-space:nowrap}
        .header-nav a:hover{color:var(--primary);background:rgba(11,45,74,0.04)}
        .header-nav a.active{color:var(--primary);background:rgba(11,45,74,0.07);font-weight:700}
        .header-nav a.active::after{content:'';position:absolute;bottom:2px;left:16px;right:16px;height:3px;background:var(--accent);border-radius:3px}
        .nav-badge{display:inline-flex;align-items:center;gap:4px;background:var(--accent);color:#fff;font-size:0.7rem;font-weight:700;padding:3px 8px;border-radius:20px;margin-left:2px;animation:pulse-badge 2s infinite}
        @keyframes pulse-badge{0%,100%{opacity:1}50%{opacity:0.75}}
        .header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
        .header-search{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);padding:7px 14px;transition:all var(--transition-fast)}
        .header-search:focus-within{border-color:var(--primary-lighter);box-shadow:0 0 0 3px rgba(11,45,74,0.06)}
        .header-search input{border:none;background:transparent;outline:none;font-size:0.9rem;width:140px;color:var(--text)}
        .header-search input::placeholder{color:var(--text-muted)}
        .header-search .search-icon{color:var(--text-muted);font-size:0.9rem}
        .btn-nav-cta{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;padding:9px 18px;border-radius:var(--radius-sm);font-weight:700;font-size:0.9rem;transition:all var(--transition-fast);white-space:nowrap;box-shadow:0 2px 8px rgba(232,97,12,0.25)}
        .btn-nav-cta:hover{background:var(--accent-hover);box-shadow:0 4px 16px rgba(232,97,12,0.35);transform:translateY(-1px);color:#fff}
        .mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;border-radius:var(--radius-xs);transition:background var(--transition-fast)}
        .mobile-toggle:hover{background:var(--bg)}
        .mobile-toggle span{display:block;width:24px;height:2.5px;background:var(--primary);border-radius:3px;transition:all var(--transition)}
        .mobile-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
        .mobile-toggle.active span:nth-child(2){opacity:0}
        .mobile-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

        /* ===== SECTIONS ===== */
        .section{padding:70px 0}
        .section-sm{padding:48px 0}
        .section-lg{padding:90px 0}
        .section-header{text-align:center;margin-bottom:48px}
        .section-header h2{margin-bottom:12px;color:var(--primary)}
        .section-header .section-subtitle{color:var(--text-light);font-size:1.05rem;max-width:600px;margin:0 auto;line-height:1.6}
        .section-label{display:inline-block;background:rgba(232,97,12,0.08);color:var(--accent);font-weight:700;font-size:0.82rem;padding:5px 14px;border-radius:20px;margin-bottom:14px;letter-spacing:0.5px;text-transform:uppercase}

        /* ===== HERO ===== */
        .hero{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;min-height:560px;display:flex;align-items:center;overflow:hidden}
        .hero::before{content:'';position:absolute;inset:0;background:linear-gradient(160deg, rgba(11,45,74,0.88) 0%, rgba(11,45,74,0.7) 40%, rgba(20,60,92,0.6) 100%);z-index:1}
        .hero .hero-particles{position:absolute;inset:0;z-index:1;pointer-events:none;opacity:0.35}
        .hero .container{position:relative;z-index:2}
        .hero-content{max-width:680px;color:#fff}
        .hero-content .hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.15);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.25);color:#fff;padding:6px 16px;border-radius:20px;font-size:0.85rem;font-weight:600;margin-bottom:20px}
        .hero-content .hero-badge .dot{width:8px;height:8px;background:#4eff4e;border-radius:50%;animation:pulse-dot 1.8s infinite}
        @keyframes pulse-dot{0%,100%{box-shadow:0 0 0 0 rgba(78,255,78,0.6)}50%{box-shadow:0 0 0 10px rgba(78,255,78,0)}}
        .hero-content h1{font-size:clamp(2rem, 4.5vw, 3.2rem);font-weight:800;margin-bottom:16px;line-height:1.2;letter-spacing:-0.5px;color:#fff}
        .hero-content h1 .highlight{color:var(--accent-light);position:relative}
        .hero-content .hero-desc{font-size:1.1rem;line-height:1.7;margin-bottom:28px;opacity:0.9;max-width:520px;color:rgba(255,255,255,0.9)}
        .hero-actions{display:flex;flex-wrap:wrap;gap:14px}
        .btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:var(--radius-sm);font-weight:700;font-size:0.95rem;transition:all var(--transition);text-align:center;justify-content:center;letter-spacing:0.2px}
        .btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 18px rgba(232,97,12,0.35)}
        .btn-primary:hover{background:var(--accent-hover);box-shadow:0 6px 24px rgba(232,97,12,0.45);transform:translateY(-2px);color:#fff}
        .btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.5)}
        .btn-outline:hover{background:rgba(255,255,255,0.1);border-color:#fff;color:#fff;transform:translateY(-2px)}
        .btn-white{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm)}
        .btn-white:hover{background:#f0f2f5;box-shadow:var(--shadow);transform:translateY(-2px)}
        .btn-lg{padding:15px 32px;font-size:1rem;border-radius:var(--radius)}
        .btn-sm{padding:8px 16px;font-size:0.85rem;border-radius:var(--radius-xs)}
        .hero-stats{display:flex;gap:32px;margin-top:32px;flex-wrap:wrap}
        .hero-stat{text-align:left}
        .hero-stat .stat-number{font-size:1.8rem;font-weight:800;color:var(--accent-light)}
        .hero-stat .stat-label{font-size:0.85rem;color:rgba(255,255,255,0.7);margin-top:2px}
        .hero-visual{position:absolute;right:5%;bottom:0;z-index:2;max-width:380px;display:none}

        /* ===== CARDS ===== */
        .card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
        .card-grid-3{grid-template-columns:repeat(3,1fr)}
        .card-grid-4{grid-template-columns:repeat(4,1fr)}
        .card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border-light);transition:all var(--transition);box-shadow:var(--shadow-xs)}
        .card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:var(--border)}
        .card-img{width:100%;height:200px;object-fit:cover;display:block}
        .card-body{padding:20px 22px 22px}
        .card-tag{display:inline-block;background:rgba(11,45,74,0.06);color:var(--primary-light);font-weight:600;font-size:0.78rem;padding:4px 10px;border-radius:var(--radius-xs);margin-bottom:10px}
        .card-tag.accent{background:rgba(232,97,12,0.08);color:var(--accent)}
        .card-title{font-size:1.08rem;font-weight:700;margin-bottom:8px;color:var(--text);line-height:1.4}
        .card-desc{font-size:0.9rem;color:var(--text-light);line-height:1.6;margin-bottom:14px}
        .card-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:0.9rem;color:var(--accent);transition:all var(--transition-fast)}
        .card-link:hover{color:var(--accent-hover);gap:10px}
        .card-link i{font-size:0.75rem;transition:transform var(--transition-fast)}
        .card-link:hover i{transform:translateX(3px)}

        /* ===== FEATURE CARDS ===== */
        .feature-card{background:var(--bg-card);border-radius:var(--radius);padding:28px 24px;border:1px solid var(--border-light);transition:all var(--transition);text-align:center;box-shadow:var(--shadow-xs)}
        .feature-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:transparent}
        .feature-icon{width:56px;height:56px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem}
        .feature-icon.blue{background:rgba(11,45,74,0.08);color:var(--primary)}
        .feature-icon.orange{background:rgba(232,97,12,0.08);color:var(--accent)}
        .feature-icon.gold{background:rgba(212,168,67,0.1);color:var(--gold)}
        .feature-card h3{font-size:1.05rem;margin-bottom:8px}
        .feature-card p{font-size:0.9rem;color:var(--text-light);line-height:1.6;margin:0}

        /* ===== INFO LIST ===== */
        .info-list{border-top:1px solid var(--border-light)}
        .info-item{display:flex;align-items:center;gap:18px;padding:16px 4px;border-bottom:1px solid var(--border-light);transition:all var(--transition-fast);cursor:pointer}
        .info-item:hover{background:var(--bg-light);padding-left:12px;border-radius:var(--radius-xs)}
        .info-item .info-date{font-size:0.82rem;color:var(--text-muted);white-space:nowrap;min-width:80px;font-weight:500}
        .info-item .info-cat{font-size:0.75rem;font-weight:700;padding:3px 10px;border-radius:12px;white-space:nowrap;background:rgba(11,45,74,0.06);color:var(--primary-light)}
        .info-item .info-title{flex:1;font-weight:600;font-size:0.95rem;color:var(--text);line-height:1.4;min-width:0}
        .info-item .info-arrow{color:var(--text-muted);font-size:0.8rem;flex-shrink:0;transition:all var(--transition-fast)}
        .info-item:hover .info-arrow{color:var(--accent);transform:translateX(4px)}
        .info-empty{text-align:center;padding:40px;color:var(--text-muted);font-size:0.95rem}

        /* ===== STATS BAR ===== */
        .stats-bar{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}
        .stat-card{background:var(--bg-card);border-radius:var(--radius);padding:28px 32px;text-align:center;border:1px solid var(--border-light);box-shadow:var(--shadow-xs);min-width:160px;flex:1;max-width:220px;transition:all var(--transition)}
        .stat-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
        .stat-card .stat-value{font-size:2.2rem;font-weight:800;color:var(--primary);line-height:1}
        .stat-card .stat-value.accent-color{color:var(--accent)}
        .stat-card .stat-unit{font-size:1rem;font-weight:600;color:var(--text-light)}
        .stat-card .stat-label-text{font-size:0.85rem;color:var(--text-muted);margin-top:6px}

        /* ===== IMAGE-TEXT BLOCK ===== */
        .img-text-block{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
        .img-text-block.reverse{direction:rtl}
        .img-text-block.reverse .img-text-content{direction:ltr}
        .img-text-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
        .img-text-image img{width:100%;height:auto;display:block;transition:transform var(--transition-slow)}
        .img-text-image:hover img{transform:scale(1.03)}
        .img-text-content h3{font-size:1.5rem;margin-bottom:14px;color:var(--primary)}
        .img-text-content p{color:var(--text-light);line-height:1.7;margin-bottom:1rem}
        .img-text-content .feature-list{list-style:none;padding:0}
        .img-text-content .feature-list li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:0.95rem;color:var(--text-secondary)}
        .img-text-content .feature-list li i{color:var(--accent);margin-top:3px;flex-shrink:0}

        /* ===== FAQ ===== */
        .faq-list{max-width:800px;margin:0 auto}
        .faq-item{border:1px solid var(--border-light);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;background:var(--bg-card);transition:all var(--transition-fast)}
        .faq-item:hover{border-color:var(--border);box-shadow:var(--shadow-sm)}
        .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;font-weight:700;font-size:1rem;color:var(--text);text-align:left;background:none;border:none;cursor:pointer;transition:all var(--transition-fast);gap:12px}
        .faq-question:hover{color:var(--primary)}
        .faq-question i{font-size:0.85rem;color:var(--text-muted);transition:all var(--transition);flex-shrink:0}
        .faq-item.open .faq-question i{transform:rotate(180deg);color:var(--accent)}
        .faq-item.open .faq-question{color:var(--primary)}
        .faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition-slow);padding:0 22px}
        .faq-item.open .faq-answer{max-height:300px;padding:0 22px 18px}
        .faq-answer p{font-size:0.92rem;color:var(--text-light);line-height:1.7;margin:0}

        /* ===== CTA BANNER ===== */
        .cta-banner{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #1a4a6e 100%);border-radius:var(--radius-lg);padding:50px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
        .cta-banner::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:0.12;z-index:1}
        .cta-banner>*{position:relative;z-index:2}
        .cta-banner h2{color:#fff;font-size:1.8rem;margin-bottom:12px}
        .cta-banner p{color:rgba(255,255,255,0.85);font-size:1.05rem;margin-bottom:24px;max-width:500px;margin-left:auto;margin-right:auto}
        .cta-banner .btn{margin:0 6px}

        /* ===== FOOTER ===== */
        .site-footer{background:var(--primary);color:rgba(255,255,255,0.8);padding:50px 0 0}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px}
        .footer-col h4{color:#fff;font-size:1rem;margin-bottom:16px;font-weight:700}
        .footer-col p{font-size:0.9rem;line-height:1.7;margin:0}
        .footer-col ul li{margin-bottom:8px}
        .footer-col ul li a{color:rgba(255,255,255,0.7);font-size:0.9rem;transition:color var(--transition-fast)}
        .footer-col ul li a:hover{color:#fff}
        .footer-logo{font-size:1.2rem;font-weight:800;color:#fff;margin-bottom:12px;display:block}
        .footer-bottom{border-top:1px solid rgba(255,255,255,0.12);padding:20px 0;text-align:center;font-size:0.85rem;color:rgba(255,255,255,0.5)}

        /* ===== RESPONSIVE ===== */
        @media(max-width:1024px){
            .card-grid-3{grid-template-columns:repeat(2,1fr)}
            .card-grid-4{grid-template-columns:repeat(2,1fr)}
            .img-text-block{grid-template-columns:1fr;gap:30px}
            .img-text-block.reverse{direction:ltr}
            .hero-visual{display:none}
            .footer-grid{grid-template-columns:1fr 1fr}
            .header-search input{width:100px}
        }
        @media(max-width:768px){
            .section{padding:50px 0}
            .section-lg{padding:60px 0}
            .hero{min-height:460px}
            .hero-content h1{font-size:1.7rem}
            .hero-content .hero-desc{font-size:0.95rem}
            .hero-stats{gap:20px}
            .hero-stat .stat-number{font-size:1.4rem}
            .card-grid-3,.card-grid-4{grid-template-columns:1fr;max-width:420px;margin:0 auto}
            .card-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto}
            .stats-bar{gap:12px}
            .stat-card{min-width:130px;padding:20px 16px}
            .stat-card .stat-value{font-size:1.6rem}
            .footer-grid{grid-template-columns:1fr;gap:28px}
            .cta-banner{padding:36px 22px}
            .cta-banner h2{font-size:1.4rem}
            .header-nav{display:none;position:absolute;top:var(--header-height);left:0;right:0;background:var(--bg-white);flex-direction:column;padding:16px 24px;gap:4px;border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-md);z-index:999}
            .header-nav.open{display:flex}
            .header-nav a{width:100%;padding:12px 16px;border-radius:var(--radius-sm)}
            .header-nav a.active::after{display:none}
            .header-actions .btn-nav-cta{display:none}
            .header-actions .header-search{display:none}
            .mobile-toggle{display:flex}
            .header-actions{gap:6px}
            .hero-actions{flex-direction:column;align-items:flex-start}
            .btn-lg{width:100%;justify-content:center}
        }
        @media(max-width:520px){
            .container{padding:0 16px}
            .hero{min-height:400px}
            .hero-content h1{font-size:1.45rem}
            .hero-content .hero-desc{font-size:0.88rem}
            .hero-stats{flex-direction:column;gap:12px}
            .section-header h2{font-size:1.3rem}
            .card-body{padding:16px}
            .feature-card{padding:20px 16px}
            .img-text-content h3{font-size:1.2rem}
            .btn{padding:11px 20px;font-size:0.9rem}
            .btn-lg{padding:13px 24px}
            .info-item{gap:10px;padding:14px 2px}
            .info-item .info-date{min-width:60px;font-size:0.75rem}
            .info-item .info-title{font-size:0.85rem}
            .faq-question{padding:14px 16px;font-size:0.9rem}
            .cta-banner{padding:28px 16px;border-radius:var(--radius)}
            .stat-card{max-width:100%;min-width:100px}
            .stats-bar{justify-content:center}
        }

        /* ===== UTILITY ===== */
        .text-center{text-align:center}
        .mt-sm{margin-top:16px}
        .mt-md{margin-top:28px}
        .mt-lg{margin-top:40px}
        .mb-sm{margin-bottom:16px}
        .mb-md{margin-bottom:28px}
        .bg-light{background:var(--bg-light)}
        .bg-white{background:var(--bg-white)}
        .divider{width:60px;height:4px;background:var(--accent);border-radius:4px;margin:12px auto 20px}
        .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* roulang page: article */
:root {
            --primary: #1B3A5C;
            --primary-light: #2C5F8A;
            --primary-dark: #0F2640;
            --accent: #E8833A;
            --accent-hover: #D4722A;
            --accent-light: #FFF3EB;
            --bg: #F7F8FA;
            --bg-warm: #FDF9F5;
            --white: #FFFFFF;
            --text: #2D3748;
            --text-heavy: #1A202C;
            --text-light: #5A6B7C;
            --text-muted: #8B9AAB;
            --border: #E2E8F0;
            --border-light: #EDF2F7;
            --shadow-xs: 0 1px 3px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.14);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50%;
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-heading: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1280px;
            --content-width: 760px;
        }

        *, *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input, textarea {
            font-family: inherit;
        }

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

        .container-narrow {
            width: 100%;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER ========== */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-xs);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.96);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

        .header-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .header-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: var(--primary);
            background: #F1F5F9;
        }

        .header-nav a.active {
            color: var(--primary);
            background: #EEF3F8;
            font-weight: 600;
        }

        .nav-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            padding: 2px 7px;
            border-radius: 20px;
            font-weight: 600;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .header-nav a.active .nav-badge {
            background: var(--primary);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 1.3rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            line-height: 1;
        }

        .mobile-menu-btn:hover {
            background: #F1F5F9;
            border-color: var(--primary-light);
            color: var(--primary);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrap {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: var(--border);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
            max-width: 360px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ========== ARTICLE MAIN ========== */
        .article-page {
            flex: 1;
            padding: 32px 0 60px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        .article-main {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .article-header-block {
            padding: 36px 40px 20px;
        }

        .article-category-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .article-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-heavy);
            letter-spacing: -0.3px;
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 0.875rem;
            color: var(--text-muted);
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-light);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

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

        .article-featured-image {
            margin: 0 40px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .article-featured-image img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            aspect-ratio: 16 / 9;
        }

        .article-body {
            padding: 32px 40px 40px;
        }

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

        .article-content h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-heavy);
            margin: 36px 0 14px;
            line-height: 1.4;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border-light);
        }

        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-heavy);
            margin: 28px 0 10px;
            line-height: 1.4;
        }

        .article-content p {
            margin-bottom: 18px;
        }

        .article-content ul, .article-content ol {
            margin: 16px 0;
            padding-left: 24px;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content blockquote {
            margin: 24px 0;
            padding: 18px 24px;
            background: var(--bg-warm);
            border-left: 4px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
            box-shadow: var(--shadow-xs);
        }

        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .article-content strong {
            color: var(--text-heavy);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }

        .article-tag {
            display: inline-block;
            background: #F1F5F9;
            color: var(--text-light);
            font-size: 0.8rem;
            padding: 5px 12px;
            border-radius: 16px;
            transition: all var(--transition-fast);
        }

        .article-tag:hover {
            background: #E2E8F0;
            color: var(--text);
        }

        /* ========== ARTICLE NOT FOUND ========== */
        .article-not-found {
            text-align: center;
            padding: 80px 40px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .article-not-found .icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 80px;
            height: 80px;
            border-radius: var(--radius-full);
            background: #F1F5F9;
            font-size: 2.2rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .article-not-found h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-heavy);
            margin-bottom: 8px;
        }

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

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            border: none;
        }

        .btn-back:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* ========== SIDEBAR ========== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 88px;
        }

        .sidebar-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            padding: 22px;
        }

        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-heavy);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h4 i {
            color: var(--accent);
            font-size: 0.9rem;
        }

        .sidebar-post-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .sidebar-post-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .sidebar-post-item:hover {
            background: #F8FAFB;
        }

        .sidebar-post-thumb {
            flex-shrink: 0;
            width: 70px;
            height: 50px;
            border-radius: var(--radius-xs);
            overflow: hidden;
            background: #E2E8F0;
        }

        .sidebar-post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .sidebar-post-info {
            flex: 1;
            min-width: 0;
        }

        .sidebar-post-info a {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .sidebar-post-info a:hover {
            color: var(--primary);
        }

        .sidebar-post-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 3px;
        }

        .sidebar-empty {
            color: var(--text-muted);
            font-size: 0.9rem;
            text-align: center;
            padding: 16px 0;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            text-align: center;
            padding: 26px 20px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }

        .sidebar-cta h4 {
            color: #fff;
            border-bottom-color: rgba(255,255,255,0.25);
            font-size: 1rem;
            margin-bottom: 10px;
            padding-bottom: 10px;
        }

        .sidebar-cta p {
            font-size: 0.85rem;
            opacity: 0.9;
            margin-bottom: 14px;
            line-height: 1.5;
        }

        .btn-sidebar-cta {
            display: inline-block;
            padding: 9px 22px;
            background: var(--accent);
            color: #fff;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-base);
        }

        .btn-sidebar-cta:hover {
            background: var(--accent-hover);
            box-shadow: 0 4px 14px rgba(232,131,58,0.35);
            transform: translateY(-1px);
        }

        /* ========== RELATED POSTS ========== */
        .related-section {
            margin-top: 48px;
        }

        .related-section .section-title {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-heavy);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-section .section-title i {
            color: var(--accent);
            font-size: 1.1rem;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .related-card-image {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #E2E8F0;
        }

        .related-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .related-card:hover .related-card-image img {
            transform: scale(1.04);
        }

        .related-card-body {
            padding: 16px 18px 18px;
        }

        .related-card-cat {
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .related-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-heavy);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .related-card:hover .related-card-title {
            color: var(--primary);
        }

        .related-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        .related-empty {
            text-align: center;
            padding: 32px;
            color: var(--text-muted);
            font-size: 0.9rem;
            background: var(--white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            margin-top: 56px;
            background: linear-gradient(135deg, #1B3A5C 0%, #1F4D7A 40%, #2C5F8A 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.04);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.03);
            pointer-events: none;
        }

        .cta-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1rem;
            opacity: 0.85;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            border: none;
            box-shadow: 0 4px 18px rgba(232,131,58,0.4);
        }

        .btn-cta:hover {
            background: #F09050;
            box-shadow: 0 6px 24px rgba(232,131,58,0.55);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1A202C;
            color: #CBD5E1;
            padding: 50px 0 0;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-logo i {
            color: var(--accent);
        }

        .footer-col p {
            font-size: 0.875rem;
            line-height: 1.65;
            opacity: 0.8;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.875rem;
            color: #CBD5E1;
            transition: color var(--transition-fast);
            opacity: 0.85;
        }

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

        .footer-col ul li a i {
            margin-right: 6px;
            font-size: 0.8rem;
        }

        .footer-bottom {
            padding: 18px 0;
            text-align: center;
            font-size: 0.8rem;
            color: #718096;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }

            .article-header-block {
                padding: 28px 28px 16px;
            }

            .article-title {
                font-size: 1.65rem;
            }

            .article-body {
                padding: 24px 28px 32px;
            }

            .article-featured-image {
                margin: 0 28px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .cta-section {
                padding: 36px 28px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
                flex-wrap: wrap;
                position: relative;
            }

            .header-logo {
                font-size: 1.15rem;
            }

            .mobile-menu-btn {
                display: block;
                flex-shrink: 0;
            }

            .header-nav {
                display: none;
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                gap: 2px;
                padding: 12px 20px;
                border-bottom: 2px solid var(--border-light);
                box-shadow: var(--shadow-md);
                z-index: 999;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }

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

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

            .article-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .article-sidebar {
                position: static;
                order: 2;
                flex-direction: column;
                gap: 20px;
            }

            .article-main {
                order: 1;
            }

            .article-title {
                font-size: 1.45rem;
            }

            .article-header-block {
                padding: 22px 18px 14px;
            }

            .article-body {
                padding: 20px 18px 28px;
            }

            .article-featured-image {
                margin: 0 18px;
            }

            .article-content {
                font-size: 1rem;
                line-height: 1.8;
            }

            .article-content h2 {
                font-size: 1.25rem;
            }

            .article-meta {
                gap: 10px;
                font-size: 0.8rem;
            }

            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .related-section {
                margin-top: 32px;
            }

            .cta-section {
                margin-top: 36px;
                padding: 32px 20px;
            }

            .cta-section h3 {
                font-size: 1.25rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .breadcrumb {
                font-size: 0.8rem;
            }

            .breadcrumb .current {
                max-width: 180px;
            }

            .article-page {
                padding: 20px 0 40px;
            }

            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 1.25rem;
            }

            .article-header-block {
                padding: 16px 14px 12px;
            }

            .article-body {
                padding: 16px 14px 22px;
            }

            .article-featured-image {
                margin: 0 14px;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .related-card-body {
                padding: 12px 14px 14px;
            }

            .sidebar-card {
                padding: 16px;
            }

            .article-meta {
                font-size: 0.75rem;
                gap: 6px;
            }

            .cta-section {
                padding: 26px 16px;
                border-radius: var(--radius-md);
            }

            .btn-cta {
                padding: 12px 26px;
                font-size: 0.9rem;
            }

            .site-footer {
                padding: 32px 0 0;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --color-primary: #0d1b2a;
            --color-primary-light: #1a2d42;
            --color-accent: #e63946;
            --color-accent-hover: #c5303c;
            --color-gold: #f0a500;
            --color-gold-light: #fef3d0;
            --color-bg: #f5f6fa;
            --color-bg-alt: #eef1f7;
            --color-white: #ffffff;
            --color-text: #1c1c1e;
            --color-text-secondary: #5a5d63;
            --color-text-muted: #8e9198;
            --color-border: #e2e5ec;
            --color-border-light: #eef0f5;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --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 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --container-max: 1200px;
            --container-narrow: 960px;
            --header-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover { color: var(--color-accent); }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            background: var(--color-white);
            color: var(--color-text);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        button {
            cursor: pointer;
            border: none;
        }
        button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            box-shadow: 0 0 0 3px rgba(230,57,70,0.12);
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(230,57,70,0.08);
        }

        ul, ol { list-style: none; }

        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary);
        }

        /* ============ 容器 ============ */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container--narrow {
            max-width: var(--container-narrow);
        }

        /* ============ Header / 导航 ============ */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-xs);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.96);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-logo i {
            color: var(--color-accent);
            font-size: 1.5rem;
            transition: transform var(--transition-normal);
        }
        .header-logo:hover i {
            transform: rotate(-15deg) scale(1.1);
        }
        .header-logo:hover {
            color: var(--color-primary);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background: var(--color-bg-alt);
        }
        .header-nav a.active {
            color: var(--color-white);
            background: var(--color-accent);
            box-shadow: 0 3px 12px rgba(230,57,70,0.3);
        }
        .header-nav a.active:hover {
            background: var(--color-accent-hover);
            color: var(--color-white);
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            background: var(--color-gold);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            animation: badgePulse 2s ease-in-out infinite;
        }
        @keyframes badgePulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        .header-nav a.active .nav-badge {
            background: rgba(255,255,255,0.35);
            color: #fff;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: 10px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .separator {
            color: var(--color-border);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ============ Main ============ */
        .site-main {
            flex: 1;
        }

        /* ============ Banner 板块 ============ */
        .category-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.88) 0%, rgba(13,27,42,0.65) 50%, rgba(230,57,70,0.4) 100%);
            z-index: 1;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--color-bg), transparent);
            z-index: 1;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: 40px 0;
        }
        .banner-label {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.82rem;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 50px;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .banner-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .banner-content .banner-desc {
            font-size: 1.12rem;
            color: rgba(255,255,255,0.85);
            line-height: 1.6;
            max-width: 520px;
            text-shadow: 0 1px 4px rgba(0,0,0,0.25);
        }

        /* ============ 板块通用 ============ */
        .section {
            padding: 60px 0;
        }
        .section--tight {
            padding: 40px 0;
        }
        .section--alt {
            background: var(--color-white);
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 750;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }
        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--color-text-muted);
        }
        .section-header--centered {
            text-align: center;
        }

        /* ============ 筛选标签 ============ */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            padding: 4px 0;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            background: var(--color-white);
            color: var(--color-text-secondary);
            border: 1.5px solid var(--color-border);
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
        }
        .filter-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: #fef5f5;
            box-shadow: var(--shadow-xs);
        }
        .filter-tag.active {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            box-shadow: 0 3px 12px rgba(230,57,70,0.28);
        }
        .filter-count {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-left: 5px;
            font-size: 0.75rem;
            background: rgba(0,0,0,0.06);
            border-radius: 20px;
            padding: 2px 8px;
            min-width: 22px;
        }
        .filter-tag.active .filter-count {
            background: rgba(255,255,255,0.25);
        }

        /* ============ 文章卡片网格 ============ */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
            position: relative;
        }
        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .article-card:focus-within {
            box-shadow: 0 0 0 3px rgba(230,57,70,0.15), var(--shadow-md);
        }
        .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-alt);
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .card-cover img {
            transform: scale(1.06);
        }
        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.4px;
            z-index: 2;
        }
        .card-tag--hot {
            background: var(--color-gold);
            color: #1c1c1e;
        }
        .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
            transition: color var(--transition-fast);
        }
        .article-card:hover .card-body h3 {
            color: var(--color-accent);
        }
        .card-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: auto;
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .article-card[data-hidden] {
            display: none;
        }

        /* ============ 数据统计板块 ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 4px;
            background: var(--color-accent);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-card:hover::before {
            opacity: 1;
        }
        .stat-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 10px;
            display: block;
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-number span {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-accent);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        /* ============ 热门排行板块 ============ */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 30px;
            align-items: start;
        }
        .ranking-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: sticky;
            top: calc(var(--header-height) + 24px);
        }
        .ranking-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .ranking-card h3 i {
            color: var(--color-gold);
        }
        .ranking-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .ranking-list li:last-child {
            border-bottom: none;
        }
        .ranking-list li:hover {
            background: var(--color-bg);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-sm);
        }
        .rank-num {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            flex-shrink: 0;
        }
        .ranking-list li:nth-child(1) .rank-num,
        .ranking-list li:nth-child(2) .rank-num,
        .ranking-list li:nth-child(3) .rank-num {
            background: var(--color-accent);
            color: #fff;
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-views {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        /* ============ FAQ 板块 ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 650;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            text-align: left;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: -2px;
            border-radius: var(--radius-md);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: all var(--transition-normal);
            color: var(--color-text-secondary);
        }
        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* ============ CTA 板块 ============ */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(240,165,0,0.18) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -25%;
            left: -5%;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(230,57,70,0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 50px 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 750;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-inner p {
            color: rgba(255,255,255,0.8);
            font-size: 1rem;
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            padding: 13px 18px;
            border-radius: 50px;
            border: 2px solid transparent;
            font-size: 0.95rem;
            background: rgba(255,255,255,0.95);
            transition: all var(--transition-fast);
        }
        .cta-form input:focus {
            border-color: var(--color-gold);
            box-shadow: 0 0 0 4px rgba(240,165,0,0.18);
        }
        .btn-cta {
            padding: 13px 28px;
            border-radius: 50px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(230,57,70,0.35);
        }
        .btn-cta:hover {
            background: var(--color-accent-hover);
            box-shadow: 0 6px 22px rgba(230,57,70,0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-cta:active {
            transform: scale(0.96);
        }

        /* ============ 通用按钮 ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 650;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn--outline {
            background: transparent;
            border: 2px solid var(--color-accent);
            color: var(--color-accent);
        }
        .btn--outline:hover {
            background: var(--color-accent);
            color: #fff;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255,255,255,0.8);
            padding-top: 50px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 30px;
            padding-bottom: 36px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-logo i {
            color: var(--color-accent);
            font-size: 1.4rem;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-gold);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding: 18px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .split-layout {
                grid-template-columns: 1fr 320px;
                gap: 22px;
            }
            .category-banner {
                min-height: 260px;
            }
            .banner-content h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }
            .header-inner {
                flex-direction: column;
                gap: 10px;
                padding: 12px 16px;
            }
            .site-header {
                height: auto;
                min-height: var(--header-height);
            }
            .header-logo {
                font-size: 1.15rem;
            }
            .header-nav {
                gap: 3px;
                flex-wrap: wrap;
                justify-content: center;
            }
            .header-nav a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            .articles-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .split-layout {
                grid-template-columns: 1fr;
            }
            .ranking-card {
                position: static;
            }
            .category-banner {
                min-height: 220px;
            }
            .banner-content h1 {
                font-size: 1.8rem;
            }
            .banner-content .banner-desc {
                font-size: 0.95rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .section {
                padding: 40px 0;
            }
            .cta-form {
                flex-direction: column;
                gap: 8px;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 0.8rem;
            }
            .category-banner {
                min-height: 180px;
            }
            .banner-content h1 {
                font-size: 1.5rem;
            }
            .banner-content .banner-desc {
                font-size: 0.85rem;
            }
            .banner-content {
                padding: 24px 0;
            }
            .section {
                padding: 30px 0;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .cta-inner h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .header-nav a {
                padding: 5px 10px;
                font-size: 0.8rem;
            }
            .nav-badge {
                font-size: 0.65rem;
                padding: 2px 6px;
            }
        }

        @media (max-width: 380px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .header-nav {
                gap: 2px;
            }
            .header-nav a {
                padding: 4px 8px;
                font-size: 0.75rem;
            }
        }