/* roulang page: index */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --accent: #f77f00;
            --accent-glow: #ff9f1c;
            --bg-dark: #0a0a0f;
            --bg-card: #12121a;
            --bg-surface: #1a1a26;
            --bg-elevated: #222233;
            --text-primary: #f0f0f5;
            --text-secondary: #b0b0be;
            --text-muted: #72728a;
            --border-subtle: #252535;
            --border-card: #2a2a3d;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.35);
            --shadow-lg: 0 12px 36px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 40px rgba(230,57,70,0.25);
            --font-xs: 0.75rem;
            --font-sm: 0.875rem;
            --font-md: 1rem;
            --font-lg: 1.125rem;
            --font-xl: 1.25rem;
            --font-2xl: 1.5rem;
            --font-3xl: 1.875rem;
            --font-4xl: 2.25rem;
            --font-5xl: 3rem;
            --font-6xl: 3.75rem;
            --spacing-xs: 0.5rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.5rem;
            --spacing-xl: 2rem;
            --spacing-2xl: 3rem;
            --spacing-3xl: 4rem;
            --spacing-4xl: 6rem;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
            --max-width: 1280px;
            --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:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
            font-size:var(--font-md);
            line-height:1.7;
            color:var(--text-primary);
            background-color:var(--bg-dark);
            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{font-family:inherit;outline:none}
        ul,ol{list-style:none}

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

        /* ========== HEADER / NAV ========== */
        .site-header{
            position:fixed;
            top:0;
            left:0;
            right:0;
            z-index:1000;
            height:var(--nav-height);
            background:rgba(10,10,15,0.88);
            backdrop-filter:blur(20px);
            -webkit-backdrop-filter:blur(20px);
            border-bottom:1px solid var(--border-subtle);
            transition:background var(--transition-normal),box-shadow var(--transition-normal);
        }
        .site-header.scrolled{
            background:rgba(10,10,15,0.96);
            box-shadow:var(--shadow-md);
        }
        .header-inner{
            display:flex;
            align-items:center;
            justify-content:space-between;
            height:var(--nav-height);
            max-width:var(--max-width);
            margin:0 auto;
            padding:0 var(--spacing-xl);
            position:relative;
        }
        .nav-left,.nav-right{
            display:flex;
            align-items:center;
            gap:var(--spacing-lg);
            flex:1;
        }
        .nav-left{justify-content:flex-end;padding-right:var(--spacing-xl);}
        .nav-right{justify-content:flex-start;padding-left:var(--spacing-xl);}
        .nav-logo{
            position:absolute;
            left:50%;
            transform:translateX(-50%);
            font-size:var(--font-xl);
            font-weight:800;
            color:var(--text-primary);
            letter-spacing:-0.02em;
            white-space:nowrap;
            z-index:10;
            transition:color var(--transition-fast);
            display:flex;
            align-items:center;
            gap:var(--spacing-xs);
        }
        .nav-logo .logo-icon{
            width:36px;
            height:36px;
            background:var(--primary);
            border-radius:var(--radius-sm);
            display:flex;
            align-items:center;
            justify-content:center;
            font-size:var(--font-lg);
            color:#fff;
            font-weight:900;
        }
        .nav-logo:hover{color:var(--primary-light);}
        .nav-link{
            font-size:var(--font-sm);
            font-weight:600;
            color:var(--text-secondary);
            padding:var(--spacing-xs) var(--spacing-md);
            border-radius:var(--radius-sm);
            transition:all var(--transition-fast);
            position:relative;
            letter-spacing:0.01em;
        }
        .nav-link:hover{color:var(--text-primary);background:rgba(255,255,255,0.04);}
        .nav-link.active{color:var(--primary);background:rgba(230,57,70,0.08);}
        .nav-link.active::after{
            content:'';
            position:absolute;
            bottom:-4px;
            left:50%;
            transform:translateX(-50%);
            width:20px;
            height:3px;
            background:var(--primary);
            border-radius:2px;
        }
        .nav-cta{
            font-size:var(--font-sm);
            font-weight:700;
            color:#fff;
            background:var(--primary);
            padding:var(--spacing-sm) var(--spacing-lg);
            border-radius:var(--radius-md);
            transition:all var(--transition-fast);
            white-space:nowrap;
            box-shadow:0 4px 16px rgba(230,57,70,0.3);
        }
        .nav-cta:hover{
            background:var(--primary-dark);
            box-shadow:0 6px 24px rgba(230,57,70,0.45);
            transform:translateY(-1px);
            color:#fff;
        }
        .mobile-toggle{
            display:none;
            background:none;
            border:none;
            color:var(--text-primary);
            font-size:var(--font-2xl);
            cursor:pointer;
            padding:var(--spacing-xs);
            z-index:20;
            transition:color var(--transition-fast);
        }
        .mobile-toggle:hover{color:var(--primary);}

        /* Mobile Nav */
        @media(max-width:768px){
            .nav-left,.nav-right{display:none;}
            .mobile-toggle{display:block;position:absolute;right:var(--spacing-xl);top:50%;transform:translateY(-50%);}
            .nav-logo{position:relative;left:auto;transform:none;margin-right:auto;font-size:var(--font-lg);}
            .nav-logo .logo-icon{width:30px;height:30px;font-size:var(--font-md);}
            .header-inner{justify-content:flex-start;position:relative;}
            .mobile-menu{
                display:none;
                position:fixed;
                top:var(--nav-height);
                left:0;
                right:0;
                bottom:0;
                background:var(--bg-dark);
                z-index:999;
                flex-direction:column;
                padding:var(--spacing-xl);
                gap:var(--spacing-md);
                overflow-y:auto;
            }
            .mobile-menu.open{display:flex;}
            .mobile-menu .nav-link{
                font-size:var(--font-lg);
                padding:var(--spacing-md);
                display:block;
                text-align:center;
                border-radius:var(--radius-md);
            }
            .mobile-menu .nav-cta{
                display:block;
                text-align:center;
                padding:var(--spacing-md);
                font-size:var(--font-md);
                margin-top:var(--spacing-md);
            }
        }

        /* ========== HERO ========== */
        .hero{
            position:relative;
            min-height:100vh;
            display:flex;
            align-items:center;
            justify-content:center;
            overflow:hidden;
            padding-top:var(--nav-height);
        }
        .hero-bg{
            position:absolute;
            inset:0;
            z-index:0;
            background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-position:center 30%;
        }
        .hero-overlay{
            position:absolute;
            inset:0;
            z-index:1;
            background:linear-gradient(180deg,rgba(10,10,15,0.6) 0%,rgba(10,10,15,0.85) 60%,var(--bg-dark) 100%);
        }
        .hero-content{
            position:relative;
            z-index:2;
            text-align:center;
            max-width:800px;
            padding:var(--spacing-2xl) var(--spacing-xl);
        }
        .hero-badge{
            display:inline-block;
            font-size:var(--font-xs);
            font-weight:700;
            text-transform:uppercase;
            letter-spacing:0.08em;
            color:var(--accent);
            background:rgba(247,127,0,0.12);
            padding:var(--spacing-xs) var(--spacing-md);
            border-radius:50px;
            margin-bottom:var(--spacing-lg);
            border:1px solid rgba(247,127,0,0.25);
        }
        .hero-badge i{margin-right:6px;}
        .hero-title{
            font-size:var(--font-6xl);
            font-weight:900;
            line-height:1.08;
            letter-spacing:-0.03em;
            color:#fff;
            margin-bottom:var(--spacing-lg);
        }
        .hero-title .highlight{
            background:linear-gradient(135deg,var(--primary),var(--accent));
            -webkit-background-clip:text;
            background-clip:text;
            -webkit-text-fill-color:transparent;
        }
        .hero-desc{
            font-size:var(--font-lg);
            color:var(--text-secondary);
            max-width:600px;
            margin:0 auto var(--spacing-2xl);
            line-height:1.6;
        }
        .hero-actions{
            display:flex;
            gap:var(--spacing-md);
            justify-content:center;
            flex-wrap:wrap;
        }
        .btn{
            display:inline-flex;
            align-items:center;
            gap:var(--spacing-xs);
            font-weight:700;
            font-size:var(--font-md);
            padding:var(--spacing-md) var(--spacing-2xl);
            border-radius:var(--radius-md);
            transition:all var(--transition-normal);
            letter-spacing:0.01em;
        }
        .btn-primary{
            background:var(--primary);
            color:#fff;
            box-shadow:0 6px 28px rgba(230,57,70,0.35);
        }
        .btn-primary:hover{
            background:var(--primary-dark);
            box-shadow:0 10px 36px rgba(230,57,70,0.5);
            transform:translateY(-2px);
            color:#fff;
        }
        .btn-outline{
            background:transparent;
            color:var(--text-primary);
            border:2px solid var(--border-card);
        }
        .btn-outline:hover{
            border-color:var(--primary);
            color:var(--primary);
            background:rgba(230,57,70,0.05);
            transform:translateY(-2px);
        }
        .hero-stats{
            display:flex;
            gap:var(--spacing-2xl);
            justify-content:center;
            margin-top:var(--spacing-3xl);
            flex-wrap:wrap;
        }
        .hero-stat{
            text-align:center;
        }
        .hero-stat-num{
            font-size:var(--font-4xl);
            font-weight:900;
            color:#fff;
            letter-spacing:-0.02em;
        }
        .hero-stat-label{
            font-size:var(--font-sm);
            color:var(--text-muted);
            margin-top:var(--spacing-xs);
        }
        @media(max-width:768px){
            .hero-title{font-size:var(--font-3xl);}
            .hero-desc{font-size:var(--font-md);}
            .hero-stats{gap:var(--spacing-xl);}
            .hero-stat-num{font-size:var(--font-2xl);}
            .btn{font-size:var(--font-sm);padding:var(--spacing-sm) var(--spacing-xl);}
        }

        /* ========== SECTIONS ========== */
        .section{
            padding:var(--spacing-4xl) 0;
        }
        .section-header{
            text-align:center;
            max-width:700px;
            margin:0 auto var(--spacing-3xl);
        }
        .section-label{
            display:inline-block;
            font-size:var(--font-xs);
            font-weight:700;
            text-transform:uppercase;
            letter-spacing:0.1em;
            color:var(--primary);
            margin-bottom:var(--spacing-sm);
        }
        .section-title{
            font-size:var(--font-4xl);
            font-weight:800;
            letter-spacing:-0.02em;
            color:#fff;
            margin-bottom:var(--spacing-md);
            line-height:1.2;
        }
        .section-desc{
            font-size:var(--font-lg);
            color:var(--text-secondary);
            line-height:1.6;
        }

        /* ========== FEATURES GRID ========== */
        .features-grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:var(--spacing-xl);
        }
        .feature-card{
            background:var(--bg-card);
            border:1px solid var(--border-card);
            border-radius:var(--radius-lg);
            padding:var(--spacing-2xl);
            transition:all var(--transition-normal);
            position:relative;
            overflow:hidden;
        }
        .feature-card::before{
            content:'';
            position:absolute;
            top:0;
            left:0;
            right:0;
            height:3px;
            background:linear-gradient(90deg,var(--primary),var(--accent));
            opacity:0;
            transition:opacity var(--transition-normal);
        }
        .feature-card:hover{
            border-color:var(--primary);
            box-shadow:var(--shadow-glow);
            transform:translateY(-4px);
        }
        .feature-card:hover::before{opacity:1;}
        .feature-icon{
            width:52px;
            height:52px;
            border-radius:var(--radius-md);
            background:rgba(230,57,70,0.1);
            display:flex;
            align-items:center;
            justify-content:center;
            font-size:var(--font-2xl);
            color:var(--primary);
            margin-bottom:var(--spacing-lg);
        }
        .feature-card h3{
            font-size:var(--font-xl);
            font-weight:700;
            color:#fff;
            margin-bottom:var(--spacing-sm);
        }
        .feature-card p{
            font-size:var(--font-sm);
            color:var(--text-secondary);
            line-height:1.6;
        }
        @media(max-width:768px){
            .features-grid{grid-template-columns:1fr;}
            .section-title{font-size:var(--font-2xl);}
        }

        /* ========== CATEGORY CARDS ========== */
        .category-grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:var(--spacing-xl);
        }
        .category-card{
            position:relative;
            border-radius:var(--radius-lg);
            overflow:hidden;
            aspect-ratio:4/5;
            cursor:pointer;
            transition:all var(--transition-slow);
            border:1px solid var(--border-card);
            background:var(--bg-card);
        }
        .category-card:hover{
            transform:translateY(-6px);
            box-shadow:var(--shadow-lg);
            border-color:var(--primary);
        }
        .category-card-img{
            position:absolute;
            inset:0;
            z-index:0;
        }
        .category-card-img img{
            width:100%;
            height:100%;
            object-fit:cover;
            transition:transform var(--transition-slow);
        }
        .category-card:hover .category-card-img img{
            transform:scale(1.08);
        }
        .category-card-overlay{
            position:absolute;
            inset:0;
            z-index:1;
            background:linear-gradient(0deg,rgba(10,10,15,0.95) 0%,rgba(10,10,15,0.3) 50%,rgba(10,10,15,0.05) 100%);
        }
        .category-card-body{
            position:absolute;
            bottom:0;
            left:0;
            right:0;
            z-index:2;
            padding:var(--spacing-xl);
        }
        .category-card-tag{
            display:inline-block;
            font-size:var(--font-xs);
            font-weight:700;
            color:var(--accent);
            background:rgba(247,127,0,0.15);
            padding:4px var(--spacing-sm);
            border-radius:50px;
            margin-bottom:var(--spacing-sm);
        }
        .category-card-body h3{
            font-size:var(--font-xl);
            font-weight:700;
            color:#fff;
            margin-bottom:var(--spacing-xs);
        }
        .category-card-body p{
            font-size:var(--font-sm);
            color:var(--text-secondary);
            line-height:1.5;
        }
        @media(max-width:768px){
            .category-grid{grid-template-columns:1fr;grid-template-columns:repeat(2,1fr);}
        }
        @media(max-width:520px){
            .category-grid{grid-template-columns:1fr;}
        }

        /* ========== NEWS LIST (CMS) ========== */
        .news-list{
            display:grid;
            grid-template-columns:repeat(2,1fr);
            gap:var(--spacing-lg);
        }
        .news-card{
            display:flex;
            gap:var(--spacing-lg);
            background:var(--bg-card);
            border:1px solid var(--border-card);
            border-radius:var(--radius-lg);
            padding:var(--spacing-lg);
            transition:all var(--transition-normal);
        }
        .news-card:hover{
            border-color:var(--primary);
            box-shadow:var(--shadow-md);
            transform:translateX(4px);
        }
        .news-card-thumb{
            width:140px;
            min-width:140px;
            height:100px;
            border-radius:var(--radius-md);
            overflow:hidden;
            flex-shrink:0;
        }
        .news-card-thumb img{
            width:100%;
            height:100%;
            object-fit:cover;
        }
        .news-card-info{
            flex:1;
            display:flex;
            flex-direction:column;
            justify-content:space-between;
        }
        .news-card-tag{
            font-size:var(--font-xs);
            font-weight:600;
            color:var(--primary);
            text-transform:uppercase;
            letter-spacing:0.04em;
        }
        .news-card-info h4{
            font-size:var(--font-md);
            font-weight:700;
            color:#fff;
            line-height:1.4;
            margin:var(--spacing-xs) 0;
            display:-webkit-box;
            -webkit-line-clamp:2;
            -webkit-box-orient:vertical;
            overflow:hidden;
        }
        .news-card-info h4 a{color:#fff;transition:color var(--transition-fast);}
        .news-card-info h4 a:hover{color:var(--primary);}
        .news-card-meta{
            font-size:var(--font-xs);
            color:var(--text-muted);
        }
        .news-empty{
            text-align:center;
            padding:var(--spacing-3xl);
            color:var(--text-muted);
            font-size:var(--font-lg);
            grid-column:1/-1;
        }
        @media(max-width:768px){
            .news-list{grid-template-columns:1fr;}
            .news-card{flex-direction:column;}
            .news-card-thumb{width:100%;min-width:auto;height:180px;}
        }

        /* ========== RANKING / HOT ========== */
        .ranking-grid{
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:var(--spacing-2xl);
        }
        .ranking-panel{
            background:var(--bg-card);
            border:1px solid var(--border-card);
            border-radius:var(--radius-lg);
            padding:var(--spacing-xl);
        }
        .ranking-panel-header{
            display:flex;
            align-items:center;
            gap:var(--spacing-sm);
            margin-bottom:var(--spacing-lg);
            padding-bottom:var(--spacing-md);
            border-bottom:1px solid var(--border-subtle);
        }
        .ranking-panel-header i{color:var(--primary);font-size:var(--font-xl);}
        .ranking-panel-header h3{font-size:var(--font-lg);font-weight:700;color:#fff;}
        .ranking-item{
            display:flex;
            align-items:center;
            gap:var(--spacing-md);
            padding:var(--spacing-sm) 0;
            border-bottom:1px solid var(--border-subtle);
            transition:all var(--transition-fast);
        }
        .ranking-item:last-child{border-bottom:none;}
        .ranking-item:hover{background:rgba(255,255,255,0.02);padding-left:var(--spacing-sm);border-radius:var(--radius-sm);}
        .rank-num{
            width:32px;
            height:32px;
            border-radius:var(--radius-sm);
            display:flex;
            align-items:center;
            justify-content:center;
            font-weight:800;
            font-size:var(--font-sm);
            flex-shrink:0;
        }
        .rank-num.top1{background:var(--primary);color:#fff;}
        .rank-num.top2{background:var(--accent);color:#fff;}
        .rank-num.top3{background:#e9c46a;color:#1a1a1a;}
        .rank-num.normal{background:var(--bg-elevated);color:var(--text-muted);}
        .ranking-item-info{flex:1;min-width:0;}
        .ranking-item-info .name{font-weight:600;color:#fff;font-size:var(--font-sm);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
        .ranking-item-info .detail{font-size:var(--font-xs);color:var(--text-muted);}
        .ranking-item .hot-badge{
            font-size:var(--font-xs);
            font-weight:700;
            color:var(--primary);
            background:rgba(230,57,70,0.1);
            padding:2px var(--spacing-sm);
            border-radius:50px;
            white-space:nowrap;
        }
        @media(max-width:768px){
            .ranking-grid{grid-template-columns:1fr;}
        }

        /* ========== FAQ ========== */
        .faq-list{
            max-width:800px;
            margin:0 auto;
        }
        .faq-item{
            background:var(--bg-card);
            border:1px solid var(--border-card);
            border-radius:var(--radius-md);
            margin-bottom:var(--spacing-md);
            overflow:hidden;
            transition:all var(--transition-normal);
        }
        .faq-item:hover{border-color:var(--border-subtle);}
        .faq-question{
            width:100%;
            background:none;
            border:none;
            color:#fff;
            font-size:var(--font-md);
            font-weight:600;
            padding:var(--spacing-lg);
            display:flex;
            align-items:center;
            justify-content:space-between;
            cursor:pointer;
            text-align:left;
            gap:var(--spacing-md);
        }
        .faq-question i{transition:transform var(--transition-normal);color:var(--primary);flex-shrink:0;}
        .faq-item.open .faq-question i{transform:rotate(180deg);}
        .faq-answer{
            max-height:0;
            overflow:hidden;
            transition:max-height var(--transition-slow),padding var(--transition-normal);
            padding:0 var(--spacing-lg);
        }
        .faq-item.open .faq-answer{
            max-height:300px;
            padding:0 var(--spacing-lg) var(--spacing-lg);
        }
        .faq-answer p{font-size:var(--font-sm);color:var(--text-secondary);line-height:1.7;}

        /* ========== CTA ========== */
        .cta-section{
            position:relative;
            overflow:hidden;
            background:var(--bg-surface);
            border-radius:var(--radius-xl);
            margin:0 var(--spacing-xl);
            padding:var(--spacing-3xl);
            text-align:center;
            border:1px solid var(--border-card);
        }
        .cta-section::before{
            content:'';
            position:absolute;
            top:-80px;
            right:-80px;
            width:280px;
            height:280px;
            background:radial-gradient(circle,rgba(230,57,70,0.2) 0%,transparent 70%);
            border-radius:50%;
            pointer-events:none;
        }
        .cta-section h2{
            font-size:var(--font-3xl);
            font-weight:800;
            color:#fff;
            margin-bottom:var(--spacing-md);
            position:relative;
            z-index:1;
        }
        .cta-section p{
            font-size:var(--font-lg);
            color:var(--text-secondary);
            margin-bottom:var(--spacing-xl);
            position:relative;
            z-index:1;
        }
        .cta-section .btn{position:relative;z-index:1;}

        /* ========== FOOTER ========== */
        .site-footer{
            background:var(--bg-card);
            border-top:1px solid var(--border-card);
            padding:var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top:var(--spacing-3xl);
        }
        .footer-grid{
            display:grid;
            grid-template-columns:2fr 1fr 1fr;
            gap:var(--spacing-2xl);
            margin-bottom:var(--spacing-2xl);
        }
        .footer-brand .footer-logo{
            font-size:var(--font-xl);
            font-weight:800;
            color:#fff;
            margin-bottom:var(--spacing-md);
            letter-spacing:-0.02em;
        }
        .footer-brand p{
            font-size:var(--font-sm);
            color:var(--text-muted);
            line-height:1.6;
        }
        .footer-col h4{
            font-size:var(--font-sm);
            font-weight:700;
            color:#fff;
            margin-bottom:var(--spacing-md);
            text-transform:uppercase;
            letter-spacing:0.04em;
        }
        .footer-col a{
            display:block;
            font-size:var(--font-sm);
            color:var(--text-muted);
            padding:var(--spacing-xs) 0;
            transition:color var(--transition-fast);
        }
        .footer-col a:hover{color:var(--primary);}
        .footer-bottom{
            border-top:1px solid var(--border-subtle);
            padding-top:var(--spacing-xl);
            text-align:center;
            font-size:var(--font-xs);
            color:var(--text-muted);
        }
        @media(max-width:768px){
            .footer-grid{grid-template-columns:1fr;gap:var(--spacing-xl);}
            .cta-section{margin:0 var(--spacing-md);padding:var(--spacing-xl);}
            .cta-section h2{font-size:var(--font-2xl);}
        }

        /* Utility */
        .text-gradient{
            background:linear-gradient(135deg,var(--primary),var(--accent));
            -webkit-background-clip:text;
            background-clip:text;
            -webkit-text-fill-color:transparent;
        }
        .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: #ff4d2e;
            --primary-glow: rgba(255, 77, 46, 0.35);
            --primary-dark: #d9361e;
            --secondary: #00d4aa;
            --secondary-glow: rgba(0, 212, 170, 0.3);
            --accent: #ffb800;
            --bg-dark: #0a0a16;
            --bg-body: #0d0d1e;
            --bg-card: #141428;
            --bg-surface: #1a1a32;
            --bg-elevated: #1f1f3a;
            --text: #edeef5;
            --text-secondary: #c5c5d8;
            --text-muted: #8a8aa6;
            --text-inverse: #0d0d1e;
            --border: #282845;
            --border-light: #32325a;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 36px rgba(0, 0, 0, 0.55);
            --shadow-glow: 0 4px 28px var(--primary-glow);
            --shadow-card-hover: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 77, 46, 0.2);
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1240px;
            --max-width-article: 820px;
            --header-height: 72px;
        }

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

        html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

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

        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; background: none; }
        ul, ol { list-style: none; }
        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: var(--max-width-article);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ==================== HEADER ==================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(13, 13, 30, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            transition: background var(--transition), border-color var(--transition);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
        }
        .nav-left { justify-content: flex-end; padding-right: 20px; }
        .nav-right { justify-content: flex-start; padding-left: 20px; }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-logo:hover { color: var(--primary); }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), #ff7043);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.05rem;
            box-shadow: 0 2px 12px var(--primary-glow);
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
        .nav-link.active {
            color: var(--primary);
            background: rgba(255, 77, 46, 0.08);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: linear-gradient(135deg, var(--primary), #ff6633);
            color: #fff;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 16px var(--primary-glow);
            letter-spacing: 0.02em;
        }
        .nav-cta:hover {
            background: linear-gradient(135deg, #ff5c3a, #ff7043);
            box-shadow: 0 4px 24px rgba(255, 77, 46, 0.5);
            transform: translateY(-1px);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 1.25rem;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-toggle:hover { background: rgba(255, 255, 255, 0.06); }

        .mobile-menu {
            display: none;
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(13, 13, 30, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            padding: 16px 20px 20px;
            flex-direction: column;
            gap: 4px;
            z-index: 999;
        }
        .mobile-menu .nav-link,
        .mobile-menu .nav-cta {
            width: 100%;
            justify-content: center;
            padding: 12px 16px;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
        }
        .mobile-menu .nav-cta {
            margin-top: 8px;
            border-radius: 50px;
        }

        /* ==================== ARTICLE BANNER ==================== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .article-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;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 22, 0.3) 0%, rgba(13, 13, 30, 0.92) 100%);
            z-index: 1;
        }
        .article-banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-banner .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(255, 77, 46, 0.15);
            border: 1px solid rgba(255, 77, 46, 0.3);
            border-radius: 50px;
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }
        .article-banner .category-tag i { font-size: 0.7rem; }
        .article-banner h1 {
            font-family: var(--font-heading);
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            max-width: 800px;
            margin: 0 auto 16px;
            letter-spacing: 0.01em;
        }
        .article-banner .banner-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 18px;
            color: var(--text-muted);
            font-size: 0.88rem;
        }
        .article-banner .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-banner .banner-meta i { color: var(--primary); font-size: 0.75rem; }
        .hot-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            background: linear-gradient(135deg, #ff4d2e, #ff8c42);
            color: #fff;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%, 100% { box-shadow: 0 0 0 0 rgba(255, 77, 46, 0.5); }
            50% { box-shadow: 0 0 0 10px rgba(255, 77, 46, 0); }
        }

        /* ==================== BREADCRUMB ==================== */
        .breadcrumb-bar {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.84rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .separator { color: var(--border-light); font-size: 0.7rem; }
        .breadcrumb .current { color: var(--text); font-weight: 500; }

        /* ==================== ARTICLE MAIN LAYOUT ==================== */
        .article-main-section {
            padding: 50px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
            align-items: start;
        }

        /* ==================== ARTICLE CONTENT ==================== */
        .article-content-wrapper {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .article-featured-image {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-lg);
        }
        .article-featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .article-body {
            font-size: 1.04rem;
            line-height: 1.85;
            color: var(--text);
        }
        .article-body h2 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin: 36px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            line-height: 1.35;
        }
        .article-body h3 {
            font-family: var(--font-heading);
            font-size: 1.22rem;
            font-weight: 600;
            color: #f0f0f8;
            margin: 28px 0 12px;
            line-height: 1.4;
        }
        .article-body p {
            margin-bottom: 18px;
            color: var(--text-secondary);
        }
        .article-body strong {
            color: #fff;
            font-weight: 600;
        }
        .article-body a {
            color: var(--primary);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(255, 77, 46, 0.3);
            transition: text-decoration-color var(--transition-fast);
        }
        .article-body a:hover { text-decoration-color: var(--primary); }
        .article-body ul, .article-body ol {
            margin: 16px 0 20px;
            padding-left: 24px;
        }
        .article-body ul { list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li {
            margin-bottom: 8px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .article-body blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: var(--bg-surface);
            border-left: 4px solid var(--secondary);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
            font-size: 1rem;
        }
        .article-body blockquote p { margin-bottom: 0; }
        .article-body img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-body code {
            background: var(--bg-surface);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--secondary);
            border: 1px solid var(--border);
        }
        .article-body pre {
            background: var(--bg-dark);
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 20px 0;
            border: 1px solid var(--border);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }
        .article-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 77, 46, 0.06);
        }

        /* ==================== SIDEBAR ==================== */
        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 30px);
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            margin-bottom: 20px;
        }
        .sidebar-card h3 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .sidebar-card h3 i { color: var(--primary); font-size: 0.85rem; }
        .sidebar-post-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .sidebar-post-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-post-item:hover { opacity: 0.85; }
        .sidebar-post-item:hover .sidebar-post-title { color: var(--primary); }
        .sidebar-post-thumb {
            width: 72px;
            height: 56px;
            border-radius: var(--radius-xs);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-surface);
        }
        .sidebar-post-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .sidebar-post-info { flex: 1; min-width: 0; }
        .sidebar-post-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.35;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
            margin-bottom: 4px;
        }
        .sidebar-post-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .sidebar-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tag-cloud .article-tag { margin: 0; }

        /* ==================== NOT FOUND ==================== */
        .not-found-section {
            padding: 100px 0 120px;
            text-align: center;
        }
        .not-found-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            opacity: 0.5;
        }
        .not-found-section h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .not-found-section p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 1rem;
        }
        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            box-shadow: var(--shadow-glow);
        }
        .btn-back:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 28px rgba(255, 77, 46, 0.45);
            transform: translateY(-2px);
        }

        /* ==================== RELATED POSTS ==================== */
        .related-section {
            padding: 50px 0 70px;
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
        }
        .related-section .section-header {
            text-align: center;
            margin-bottom: 36px;
        }
        .related-section .section-header h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.02em;
        }
        .related-section .section-header h2 i { color: var(--primary); font-size: 1.1rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 77, 46, 0.3);
        }
        .related-card-image {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-surface);
            position: relative;
        }
        .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(1.06); }
        .related-card-body {
            padding: 18px 20px 20px;
        }
        .related-card-body .card-cat {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }
        .related-card-body h4 {
            font-family: var(--font-heading);
            font-size: 0.98rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .related-card-body .card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ==================== CTA SECTION ==================== */
        .cta-section {
            padding: 70px 0 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(255, 77, 46, 0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.04rem;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--primary), #ff6633);
            color: #fff;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            box-shadow: 0 4px 24px var(--primary-glow);
        }
        .btn-cta-primary:hover {
            background: linear-gradient(135deg, #ff5c3a, #ff7043);
            box-shadow: 0 8px 36px rgba(255, 77, 46, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ==================== FOOTER ==================== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-top: 12px;
        }
        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
        }
        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover { color: var(--primary); }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ==================== RESPONSIVE ==================== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                position: static;
                top: auto;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-content-wrapper {
                padding: 28px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand { grid-column: 1 / -1; }
        }

        @media (max-width: 768px) {
            .nav-left, .nav-right { display: none; }
            .header-inner { justify-content: space-between; }
            .mobile-toggle { display: flex; }
            .mobile-menu.active { display: flex; }
            .article-banner { padding: 56px 0 40px; }
            .article-banner h1 { font-size: 1.4rem; }
            .article-main-section { padding: 32px 0 40px; }
            .article-content-wrapper { padding: 20px 16px; border-radius: var(--radius); }
            .article-body { font-size: 0.96rem; }
            .article-body h2 { font-size: 1.25rem; }
            .related-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .related-card-body { padding: 14px; }
            .related-card-body h4 { font-size: 0.88rem; }
            .cta-section { padding: 48px 0 56px; }
            .sidebar-card { padding: 18px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-brand { grid-column: auto; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 14px; }
            .container-narrow { padding: 0 14px; }
            .header-inner { padding: 0 14px; }
            .nav-logo { font-size: 1.05rem; gap: 6px; }
            .logo-icon { width: 32px; height: 32px; font-size: 0.9rem; }
            .article-banner { padding: 40px 0 28px; }
            .article-banner h1 { font-size: 1.2rem; }
            .article-banner .banner-meta { font-size: 0.78rem; gap: 10px; }
            .breadcrumb { font-size: 0.76rem; }
            .article-content-wrapper { padding: 16px 12px; border-radius: var(--radius-sm); }
            .article-body { font-size: 0.92rem; }
            .article-body h2 { font-size: 1.15rem; margin: 24px 0 12px; padding-left: 12px; }
            .article-body h3 { font-size: 1.05rem; }
            .related-grid { grid-template-columns: 1fr; }
            .related-section .section-header h2 { font-size: 1.3rem; }
            .cta-section h2 { font-size: 1.3rem; }
            .btn-cta-primary { padding: 12px 24px; font-size: 0.9rem; }
            .btn-back { padding: 10px 22px; font-size: 0.88rem; }
            .article-tags { gap: 6px; margin-top: 24px; }
            .article-tag { padding: 4px 10px; font-size: 0.74rem; }
            .sidebar-post-thumb { width: 56px; height: 44px; }
            .sidebar-post-title { font-size: 0.8rem; }
        }

        @media (max-width: 380px) {
            .article-banner h1 { font-size: 1.1rem; }
            .article-body { font-size: 0.88rem; }
            .related-card-body h4 { font-size: 0.82rem; }
            .footer-logo { font-size: 1rem; }
        }

/* roulang page: category1 */
:root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --accent: #e94560;
            --accent-glow: #ff6b81;
            --gold: #f0a500;
            --gold-light: #ffc947;
            --bg: #f8f9fb;
            --bg-card: #ffffff;
            --bg-dark: #0f0f1a;
            --text: #1a1a2e;
            --text-light: #5a5a7a;
            --text-muted: #8888a0;
            --border: #e8e8f0;
            --border-light: #f0f0f6;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-glow: 0 4px 24px rgba(233,68,96,0.2);
            --font-xs: 0.75rem;
            --font-sm: 0.85rem;
            --font-base: 0.95rem;
            --font-md: 1.05rem;
            --font-lg: 1.2rem;
            --font-xl: 1.5rem;
            --font-2xl: 1.8rem;
            --font-3xl: 2.2rem;
            --font-hero: 2.8rem;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::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: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            font-size: var(--font-base);
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }

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

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

        button, input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 8px rgba(0,0,0,0.04);
            transition: all var(--transition);
        }

        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            position: relative;
        }

        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }

        .nav-left {
            justify-content: flex-end;
            padding-right: 20px;
        }

        .nav-right {
            justify-content: flex-start;
            padding-left: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .nav-logo:hover {
            color: var(--accent);
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), var(--accent-glow));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.1rem;
            box-shadow: var(--shadow-glow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .nav-logo:hover .logo-icon {
            transform: scale(1.05);
            box-shadow: 0 6px 28px rgba(233,68,96,0.35);
        }

        .nav-link {
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 16px;
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--accent);
            background: rgba(233,68,96,0.06);
        }

        .nav-link.active {
            color: var(--accent);
            font-weight: 600;
            background: rgba(233,68,96,0.08);
        }

        .nav-cta {
            font-size: var(--font-sm);
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--accent-glow));
            padding: 10px 22px;
            border-radius: 22px;
            white-space: nowrap;
            box-shadow: 0 2px 12px rgba(233,68,96,0.3);
            transition: all var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(233,68,96,0.4);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            background: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .mobile-toggle:hover {
            background: rgba(0,0,0,0.05);
            color: var(--accent);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            padding: 16px 24px;
            flex-direction: column;
            gap: 6px;
            z-index: 999;
            animation: slideDown 0.3s ease;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu .nav-link,
        .mobile-menu .nav-cta {
            display: block;
            text-align: center;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
        }

        .mobile-menu .nav-cta {
            margin-top: 6px;
        }

        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ========== CATEGORY BANNER ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(170deg, var(--primary) 0%, var(--primary-light) 40%, #1a2744 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 60px 0 64px;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26,26,46,0.7) 0%, rgba(22,33,62,0.85) 60%, rgba(26,26,46,0.95) 100%);
            z-index: 1;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(233,68,96,0.15) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 1;
            pointer-events: none;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.2);
            color: #fff;
            font-size: var(--font-xs);
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }

        .banner-badge i {
            color: var(--gold);
            font-size: 0.7rem;
        }

        .banner-title {
            font-size: var(--font-hero);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .banner-title span {
            background: linear-gradient(135deg, var(--accent-glow), var(--gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .banner-desc {
            font-size: var(--font-md);
            color: rgba(255,255,255,0.75);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .banner-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .banner-stat {
            text-align: center;
        }

        .banner-stat-number {
            font-size: var(--font-2xl);
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .banner-stat-label {
            font-size: var(--font-xs);
            color: rgba(255,255,255,0.6);
            margin-top: 4px;
        }

        /* ========== MAIN LAYOUT ========== */
        .category-main {
            padding: 48px 0 60px;
        }

        .category-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            align-items: start;
        }

        /* ========== CONTENT AREA ========== */
        .content-area {
            min-width: 0;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-title {
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title::before {
            content: '';
            width: 4px;
            height: 22px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-filter {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-btn {
            font-size: var(--font-xs);
            font-weight: 500;
            padding: 7px 16px;
            border-radius: 18px;
            background: #fff;
            color: var(--text-light);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .filter-btn.active {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            font-weight: 600;
        }

        /* ========== FEATURED ARTICLE ========== */
        .featured-article {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            margin-bottom: 32px;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            transition: all var(--transition-slow);
            border: 1px solid var(--border-light);
        }

        .featured-article:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .featured-image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            min-height: 260px;
        }

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

        .featured-article:hover .featured-image-wrap img {
            transform: scale(1.04);
        }

        .featured-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
        }

        .featured-body {
            padding: 28px 28px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .featured-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .featured-title {
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .featured-title a:hover {
            color: var(--accent);
        }

        .featured-excerpt {
            font-size: var(--font-sm);
            color: var(--text-light);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .featured-readmore {
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }

        .featured-readmore:hover {
            gap: 10px;
        }

        /* ========== ARTICLE CARDS GRID ========== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .card-image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/11;
        }

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

        .article-card:hover .card-image-wrap img {
            transform: scale(1.05);
        }

        .card-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            z-index: 2;
        }

        .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-title {
            font-size: var(--font-base);
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            letter-spacing: -0.01em;
            flex: 1;
        }

        .card-title a:hover {
            color: var(--accent);
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin-top: auto;
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
            flex-wrap: wrap;
            gap: 8px;
        }

        .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .card-views {
            color: var(--accent);
            font-weight: 500;
        }

        /* ========== TAG STYLES ========== */
        .tag-hot, .tag-review, .tag-news, .tag-deep, .tag-guide, .tag-platform, .tag-analysis, .tag-trend {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 12px;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .tag-hot {
            background: #fff0f0;
            color: #e94560;
        }
        .tag-review {
            background: #f0f4ff;
            color: #3b6df0;
        }
        .tag-news {
            background: #fff8f0;
            color: #f0883b;
        }
        .tag-deep {
            background: #f0f0ff;
            color: #6b3bf0;
        }
        .tag-guide {
            background: #f0fff4;
            color: #1a8a4a;
        }
        .tag-platform {
            background: #fff0f8;
            color: #c73b8a;
        }
        .tag-analysis {
            background: #f8f0ff;
            color: #7b3bc7;
        }
        .tag-trend {
            background: #f0fffa;
            color: #0d8a6e;
        }

        /* ========== PAGINATION ========== */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 6px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .page-btn {
            min-width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: var(--font-sm);
            font-weight: 500;
            background: #fff;
            color: var(--text-light);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
        }

        .page-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(233,68,96,0.04);
        }

        .page-btn.active {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            font-weight: 600;
        }

        .page-btn.dots {
            border: none;
            background: transparent;
            cursor: default;
        }

        .page-btn.dots:hover {
            color: var(--text-light);
            background: transparent;
        }

        /* ========== SIDEBAR ========== */
        .sidebar {
            position: sticky;
            top: 88px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: 24px;
        }

        .sidebar-card-title {
            font-size: var(--font-md);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }

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

        /* Ranking List */
        .ranking-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            cursor: pointer;
        }

        .ranking-item:hover {
            background: rgba(233,68,96,0.04);
        }

        .ranking-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: var(--font-xs);
            font-weight: 700;
            flex-shrink: 0;
        }

        .ranking-num.top1 {
            background: linear-gradient(135deg, #f0a500, #ffc947);
            color: #fff;
        }
        .ranking-num.top2 {
            background: linear-gradient(135deg, #b0b8c8, #c8d0d8);
            color: #fff;
        }
        .ranking-num.top3 {
            background: linear-gradient(135deg, #c8947a, #d4a88c);
            color: #fff;
        }
        .ranking-num.normal {
            background: #f0f2f5;
            color: var(--text-muted);
        }

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

        .ranking-title {
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.3;
        }

        .ranking-views {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        .ranking-trend {
            font-size: 0.7rem;
            flex-shrink: 0;
        }
        .ranking-trend.up { color: #e94560; }
        .ranking-trend.hot { color: #f0a500; animation: pulse 1.5s infinite; }
        .ranking-trend.stable { color: #888; }
        .ranking-trend.down { color: #4a90d9; }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.5; }
        }

        /* Tags Cloud */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud-item {
            font-size: var(--font-xs);
            font-weight: 500;
            padding: 7px 14px;
            border-radius: 18px;
            background: #f8f9fb;
            color: var(--text-light);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .tag-cloud-item:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 2px 10px rgba(233,68,96,0.25);
        }

        /* Subscribe Card */
        .subscribe-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border: none;
        }

        .subscribe-card .sidebar-card-title {
            color: #fff;
        }

        .subscribe-card .sidebar-card-title i {
            color: var(--gold);
        }

        .subscribe-desc {
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.7);
            margin-bottom: 16px;
            line-height: 1.6;
        }

        .subscribe-input-wrap {
            display: flex;
            gap: 8px;
        }

        .subscribe-input {
            flex: 1;
            padding: 10px 14px;
            border-radius: 22px;
            background: rgba(255,255,255,0.15);
            border: 1px solid rgba(255,255,255,0.25);
            color: #fff;
            font-size: var(--font-sm);
            transition: all var(--transition);
        }

        .subscribe-input::placeholder {
            color: rgba(255,255,255,0.5);
        }

        .subscribe-input:focus {
            background: rgba(255,255,255,0.2);
            border-color: rgba(255,255,255,0.5);
            outline: none;
        }

        .subscribe-btn {
            padding: 10px 18px;
            border-radius: 22px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: var(--font-sm);
            white-space: nowrap;
            cursor: pointer;
            transition: all var(--transition);
        }

        .subscribe-btn:hover {
            background: var(--accent-glow);
            box-shadow: 0 4px 16px rgba(233,68,96,0.4);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(170deg, var(--primary) 0%, #1a1a3e 100%);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15,15,26,0.75);
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: var(--font-2xl);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: var(--font-md);
            color: rgba(255,255,255,0.7);
            max-width: 500px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-cta-primary {
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 600;
            font-size: var(--font-base);
            background: linear-gradient(135deg, var(--accent), var(--accent-glow));
            color: #fff;
            box-shadow: 0 6px 24px rgba(233,68,96,0.35);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(233,68,96,0.5);
            color: #fff;
        }

        .btn-cta-outline {
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 600;
            font-size: var(--font-base);
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.4);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.08);
            color: #fff;
        }

        /* ========== FLOAT ACTION BAR ========== */
        .float-action-bar {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 900;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--bg-card);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            font-size: 1.1rem;
            color: var(--text-light);
        }

        .float-btn:hover {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-glow);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .float-btn.back-top {
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition);
        }

        .float-btn.back-top.visible {
            opacity: 1;
            visibility: visible;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-size: var(--font-lg);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
        }

        .footer-col h4 {
            font-size: var(--font-base);
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .footer-col a {
            display: block;
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.55);
            padding: 6px 0;
            transition: all var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent-glow);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            text-align: center;
            font-size: var(--font-xs);
            color: rgba(255,255,255,0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1080px) {
            .category-layout {
                grid-template-columns: 1fr 300px;
                gap: 24px;
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-article {
                grid-template-columns: 1fr;
            }
            .featured-image-wrap {
                aspect-ratio: 16/8;
                min-height: 200px;
            }
            .banner-title {
                font-size: var(--font-2xl);
            }
        }

        @media (max-width: 860px) {
            .nav-left, .nav-right {
                display: none;
            }
            .header-inner {
                justify-content: space-between;
            }
            .nav-logo {
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
            }
            .mobile-toggle {
                display: block;
                margin-left: auto;
            }
            .category-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                top: auto;
            }
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .banner-title {
                font-size: var(--font-xl);
            }
            .banner-stats {
                gap: 20px;
            }
            .banner-stat-number {
                font-size: var(--font-xl);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .float-action-bar {
                bottom: 16px;
                right: 16px;
            }
            .cta-title {
                font-size: var(--font-xl);
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .header-inner {
                padding: 0 14px;
                height: 56px;
            }
            .nav-logo {
                font-size: var(--font-base);
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .category-banner {
                padding: 36px 0 40px;
            }
            .banner-title {
                font-size: var(--font-lg);
            }
            .banner-desc {
                font-size: var(--font-sm);
            }
            .banner-stats {
                gap: 14px;
            }
            .banner-stat-number {
                font-size: var(--font-lg);
            }
            .cards-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .featured-article {
                grid-template-columns: 1fr;
            }
            .featured-image-wrap {
                aspect-ratio: 16/9;
                min-height: 180px;
            }
            .featured-body {
                padding: 16px 14px 18px;
            }
            .featured-title {
                font-size: var(--font-md);
            }
            .card-body {
                padding: 12px 14px 14px;
            }
            .card-title {
                font-size: var(--font-sm);
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: var(--font-lg);
            }
            .pagination {
                gap: 4px;
            }
            .page-btn {
                min-width: 34px;
                height: 34px;
                font-size: var(--font-xs);
            }
            .sidebar-card {
                padding: 16px;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-title {
                font-size: var(--font-lg);
            }
            .btn-cta-primary, .btn-cta-outline {
                padding: 12px 24px;
                font-size: var(--font-sm);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .float-btn {
                width: 38px;
                height: 38px;
                font-size: 0.9rem;
            }
        }