/* roulang page: index */
:root {
            --color-bg-deep: #060b1a;
            --color-bg-primary: #0a1029;
            --color-bg-secondary: #111b3d;
            --color-bg-card: #131e45;
            --color-bg-card-hover: #1a2756;
            --color-border: #1e2d5c;
            --color-border-light: #2a3a6b;
            --color-accent: #3b82f6;
            --color-accent-bright: #60a5fa;
            --color-accent-glow: rgba(59,130,246,0.35);
            --color-gold: #f0b90b;
            --color-gold-light: #fcd535;
            --color-green: #10b981;
            --color-red: #ef4444;
            --color-text-primary: #e8ecf4;
            --color-text-secondary: #b0b8cc;
            --color-text-muted: #6b7394;
            --color-text-inverse: #ffffff;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 2px 16px rgba(0,0,0,0.30);
            --shadow-card-hover: 0 8px 32px rgba(59,130,246,0.18);
            --shadow-glow: 0 0 40px var(--color-accent-glow);
            --shadow-nav: 0 -2px 20px rgba(0,0,0,0.40);
            --font-heading: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25,0.8,0.25,1.2);
            --nav-height-desktop: 72px;
            --tab-height-mobile: 64px;
        }

        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
        html{scroll-behavior:smooth;-webkit-tap-highlight-color:transparent;}
        body{
            font-family:var(--font-heading);
            background-color:var(--color-bg-deep);
            color:var(--color-text-primary);
            line-height:1.7;
            min-height:100vh;
            -webkit-font-smoothing:antialiased;
            -moz-osx-font-smoothing:grayscale;
            overflow-x:hidden;
        }
        a{text-decoration:none;color:inherit;transition:color var(--transition-fast);}
        a:hover{color:var(--color-accent-bright);}
        img{max-width:100%;height:auto;display:block;}
        button,input,select,textarea{font-family:inherit;}
        ul,ol{list-style:none;padding:0;margin:0;}

        .container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}
        .container-wide{max-width:1320px;}

        /* Header & Desktop Nav */
        .site-header{
            position:sticky;top:0;z-index:1050;
            background:rgba(10,16,41,0.88);
            backdrop-filter:blur(18px);
            -webkit-backdrop-filter:blur(18px);
            border-bottom:1px solid var(--color-border);
            height:var(--nav-height-desktop);
            display:flex;align-items:center;
            transition:background var(--transition-base),box-shadow var(--transition-base);
        }
        .site-header.scrolled{background:rgba(10,16,41,0.96);box-shadow:0 2px 24px rgba(0,0,0,0.45);}
        .header-inner{display:flex;align-items:center;justify-content:space-between;width:100%;}
        .logo-link{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:700;color:var(--color-text-inverse);letter-spacing:0.5px;white-space:nowrap;}
        .logo-link:hover{color:var(--color-accent-bright);}
        .logo-icon{
            width:40px;height:40px;border-radius:var(--radius-sm);
            background:linear-gradient(135deg,var(--color-accent),#1d4ed8);
            display:flex;align-items:center;justify-content:center;
            font-size:1.2rem;color:#fff;flex-shrink:0;
            box-shadow:0 0 18px var(--color-accent-glow);
        }
        .desktop-nav{display:flex;align-items:center;gap:6px;}
        .desktop-nav .nav-link-item{
            padding:10px 18px;border-radius:var(--radius-sm);
            font-size:0.95rem;font-weight:500;color:var(--color-text-secondary);
            transition:all var(--transition-fast);position:relative;white-space:nowrap;
        }
        .desktop-nav .nav-link-item:hover{color:var(--color-text-inverse);background:rgba(255,255,255,0.04);}
        .desktop-nav .nav-link-item.active{color:var(--color-accent-bright);background:rgba(59,130,246,0.10);}
        .desktop-nav .nav-link-item.active::after{
            content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);
            width:20px;height:3px;background:var(--color-accent-bright);border-radius:4px;
        }
        .btn-nav-cta{
            padding:10px 22px;border-radius:var(--radius-sm);
            font-size:0.92rem;font-weight:600;color:#fff;
            background:linear-gradient(135deg,var(--color-accent),#2563eb);
            border:none;cursor:pointer;white-space:nowrap;
            transition:all var(--transition-base);
            box-shadow:0 4px 16px rgba(59,130,246,0.25);
        }
        .btn-nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 24px rgba(59,130,246,0.40);color:#fff;}

        /* Mobile Bottom Tab Nav */
        .mobile-tab-nav{
            display:none;
            position:fixed;bottom:0;left:0;right:0;z-index:1060;
            background:rgba(10,16,41,0.95);
            backdrop-filter:blur(20px);
            -webkit-backdrop-filter:blur(20px);
            border-top:1px solid var(--color-border);
            height:var(--tab-height-mobile);
            padding:0 8px;
            box-shadow:var(--shadow-nav);
        }
        .mobile-tab-nav .tab-list{display:flex;align-items:stretch;height:100%;justify-content:space-around;}
        .mobile-tab-nav .tab-item{
            display:flex;flex-direction:column;align-items:center;justify-content:center;
            gap:3px;flex:1;min-width:0;padding:6px 4px;
            font-size:0.68rem;color:var(--color-text-muted);
            border-radius:10px;transition:all var(--transition-fast);
            cursor:pointer;text-decoration:none;position:relative;
        }
        .mobile-tab-nav .tab-item i{font-size:1.25rem;transition:all var(--transition-fast);}
        .mobile-tab-nav .tab-item.active{color:var(--color-accent-bright);}
        .mobile-tab-nav .tab-item.active i{text-shadow:0 0 12px var(--color-accent-glow);}
        .mobile-tab-nav .tab-item.active::before{
            content:'';position:absolute;top:-1px;left:20%;right:20%;height:2.5px;
            background:var(--color-accent-bright);border-radius:0 0 4px 4px;
        }
        .mobile-tab-nav .tab-item:hover{color:var(--color-text-primary);}

        /* Hero Section */
        .hero-section{
            position:relative;min-height:580px;display:flex;align-items:center;
            background:linear-gradient(170deg,var(--color-bg-primary) 0%,var(--color-bg-deep) 50%,var(--color-bg-secondary) 100%);
            overflow:hidden;
        }
        .hero-bg-img{
            position:absolute;inset:0;z-index:0;
            background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity:0.22;mask-image:linear-gradient(to bottom,transparent 5%,rgba(0,0,0,0.8) 40%,rgba(0,0,0,0.9) 75%,transparent 98%);
            -webkit-mask-image:linear-gradient(to bottom,transparent 5%,rgba(0,0,0,0.8) 40%,rgba(0,0,0,0.9) 75%,transparent 98%);
        }
        .hero-glow-orb{
            position:absolute;width:500px;height:500px;border-radius:50%;
            background:radial-gradient(circle,rgba(59,130,246,0.14) 0%,transparent 70%);
            top:-120px;right:-100px;z-index:1;pointer-events:none;
        }
        .hero-glow-orb2{
            position:absolute;width:350px;height:350px;border-radius:50%;
            background:radial-gradient(circle,rgba(240,185,11,0.08) 0%,transparent 70%);
            bottom:-80px;left:-60px;z-index:1;pointer-events:none;
        }
        .hero-content{position:relative;z-index:2;padding:60px 0;text-align:center;}
        .hero-badge{
            display:inline-block;padding:6px 18px;border-radius:50px;
            font-size:0.85rem;font-weight:600;color:var(--color-gold-light);
            background:rgba(240,185,11,0.10);border:1px solid rgba(240,185,11,0.22);
            margin-bottom:20px;letter-spacing:1px;
        }
        .hero-title{font-size:3rem;font-weight:800;color:#fff;line-height:1.25;margin-bottom:18px;letter-spacing:-0.5px;}
        .hero-title .highlight{color:var(--color-accent-bright);position:relative;}
        .hero-desc{font-size:1.15rem;color:var(--color-text-secondary);max-width:620px;margin:0 auto 32px;line-height:1.7;}
        .hero-btns{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;}
        .btn-primary-hero{
            padding:13px 32px;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;
            background:linear-gradient(135deg,var(--color-accent),#2563eb);
            color:#fff;border:none;cursor:pointer;transition:all var(--transition-base);
            box-shadow:0 6px 22px rgba(59,130,246,0.32);
            display:inline-flex;align-items:center;gap:8px;
        }
        .btn-primary-hero:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(59,130,246,0.48);color:#fff;}
        .btn-outline-hero{
            padding:13px 32px;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;
            background:transparent;color:var(--color-text-primary);
            border:2px solid var(--color-border-light);cursor:pointer;
            transition:all var(--transition-base);display:inline-flex;align-items:center;gap:8px;
        }
        .btn-outline-hero:hover{border-color:var(--color-accent-bright);color:#fff;background:rgba(255,255,255,0.03);}

        /* Section Common */
        .section{padding:70px 0;}
        .section-header{text-align:center;margin-bottom:48px;}
        .section-label{
            display:inline-block;font-size:0.82rem;font-weight:600;letter-spacing:1.5px;
            color:var(--color-accent-bright);text-transform:uppercase;margin-bottom:10px;
        }
        .section-title{font-size:2rem;font-weight:700;color:#fff;margin-bottom:10px;}
        .section-subtitle{font-size:1rem;color:var(--color-text-secondary);max-width:540px;margin:0 auto;}

        /* Stats Strip */
        .stats-strip{
            background:var(--color-bg-secondary);border-top:1px solid var(--color-border);
            border-bottom:1px solid var(--color-border);padding:36px 0;
        }
        .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
        .stat-item .stat-value{font-size:2.2rem;font-weight:800;color:#fff;}
        .stat-item .stat-value .sm{font-size:1.2rem;color:var(--color-accent-bright);}
        .stat-item .stat-label{font-size:0.85rem;color:var(--color-text-muted);margin-top:4px;}

        /* Category Cards */
        .category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
        .category-card{
            position:relative;border-radius:var(--radius-lg);overflow:hidden;
            background:var(--color-bg-card);border:1px solid var(--color-border);
            transition:all var(--transition-base);cursor:pointer;display:block;color:inherit;
            min-height:320px;
        }
        .category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-card-hover);border-color:var(--color-accent);color:inherit;}
        .category-card-img{
            width:100%;height:190px;object-fit:cover;display:block;
            transition:transform var(--transition-slow);
        }
        .category-card:hover .category-card-img{transform:scale(1.05);}
        .category-card-body{padding:20px 22px 24px;position:relative;z-index:1;}
        .category-card-tag{
            display:inline-block;padding:4px 12px;border-radius:50px;
            font-size:0.72rem;font-weight:600;letter-spacing:0.5px;
            background:rgba(59,130,246,0.14);color:var(--color-accent-bright);
            margin-bottom:10px;
        }
        .category-card-title{font-size:1.2rem;font-weight:700;color:#fff;margin-bottom:6px;}
        .category-card-desc{font-size:0.88rem;color:var(--color-text-muted);line-height:1.5;}

        /* CMS News List */
        .news-section{background:var(--color-bg-primary);}
        .news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
        .news-card{
            display:flex;gap:20px;background:var(--color-bg-card);
            border:1px solid var(--color-border);border-radius:var(--radius-md);
            padding:18px;transition:all var(--transition-base);color:inherit;
            align-items:flex-start;
        }
        .news-card:hover{box-shadow:var(--shadow-card-hover);border-color:var(--color-accent);color:inherit;transform:translateY(-2px);}
        .news-card-thumb{
            width:120px;height:90px;border-radius:var(--radius-sm);
            object-fit:cover;flex-shrink:0;background:var(--color-bg-secondary);
        }
        .news-card-info{flex:1;min-width:0;}
        .news-card-cat{font-size:0.72rem;font-weight:600;color:var(--color-accent-bright);margin-bottom:4px;text-transform:uppercase;letter-spacing:0.8px;}
        .news-card-title{font-size:1rem;font-weight:700;color:#fff;margin-bottom:4px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
        .news-card-excerpt{font-size:0.82rem;color:var(--color-text-muted);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
        .news-card-time{font-size:0.75rem;color:var(--color-text-muted);margin-top:6px;}
        .news-empty{text-align:center;padding:40px;color:var(--color-text-muted);font-size:0.95rem;}

        /* Features */
        .features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
        .feature-card{
            background:var(--color-bg-card);border:1px solid var(--color-border);
            border-radius:var(--radius-md);padding:28px 22px;text-align:center;
            transition:all var(--transition-base);
        }
        .feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:var(--color-accent);}
        .feature-icon{
            width:56px;height:56px;border-radius:var(--radius-sm);
            background:linear-gradient(135deg,rgba(59,130,246,0.2),rgba(37,99,235,0.15));
            display:flex;align-items:center;justify-content:center;
            margin:0 auto 16px;font-size:1.5rem;color:var(--color-accent-bright);
        }
        .feature-card h4{font-size:1.05rem;font-weight:700;color:#fff;margin-bottom:6px;}
        .feature-card p{font-size:0.84rem;color:var(--color-text-muted);line-height:1.5;}

        /* Data Panel */
        .data-panel-section{background:var(--color-bg-secondary);}
        .data-panel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
        .data-panel-card{
            background:var(--color-bg-card);border:1px solid var(--color-border);
            border-radius:var(--radius-lg);padding:28px 24px;position:relative;overflow:hidden;
            transition:all var(--transition-base);
        }
        .data-panel-card:hover{border-color:var(--color-accent);box-shadow:var(--shadow-card-hover);}
        .data-panel-card .dp-indicator{
            display:flex;align-items:center;gap:8px;margin-bottom:14px;
        }
        .dp-dot{width:9px;height:9px;border-radius:50%;background:var(--color-green);animation:pulse-dot 2s infinite;}
        @keyframes pulse-dot{0%,100%{box-shadow:0 0 0 0 rgba(16,185,129,0.5);}50%{box-shadow:0 0 0 10px rgba(16,185,129,0);}}
        .dp-label{font-size:0.78rem;font-weight:600;color:var(--color-text-muted);letter-spacing:1px;text-transform:uppercase;}
        .dp-value{font-size:2.5rem;font-weight:800;color:#fff;margin-bottom:4px;}
        .dp-sub{font-size:0.84rem;color:var(--color-text-secondary);}

        /* FAQ */
        .faq-section{background:var(--color-bg-primary);}
        .faq-list{max-width:760px;margin:0 auto;}
        .faq-item{
            background:var(--color-bg-card);border:1px solid var(--color-border);
            border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;
            transition:all var(--transition-fast);
        }
        .faq-item:hover{border-color:var(--color-border-light);}
        .faq-question{
            padding:18px 24px;font-weight:600;color:#fff;cursor:pointer;
            display:flex;justify-content:space-between;align-items:center;
            font-size:0.98rem;user-select:none;transition:color var(--transition-fast);
        }
        .faq-question:hover{color:var(--color-accent-bright);}
        .faq-question i{transition:transform var(--transition-base);color:var(--color-text-muted);font-size:0.85rem;}
        .faq-item.open .faq-question i{transform:rotate(180deg);color:var(--color-accent-bright);}
        .faq-answer{padding:0 24px 18px;font-size:0.9rem;color:var(--color-text-secondary);line-height:1.65;display:none;}
        .faq-item.open .faq-answer{display:block;}

        /* CTA */
        .cta-section{
            background:linear-gradient(160deg,var(--color-bg-secondary) 0%,var(--color-bg-card) 100%);
            text-align:center;padding:70px 0;position:relative;overflow:hidden;
        }
        .cta-glow{
            position:absolute;width:600px;height:600px;border-radius:50%;
            background:radial-gradient(circle,rgba(59,130,246,0.10) 0%,transparent 70%);
            top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;
        }
        .cta-section .section-title{position:relative;z-index:1;}
        .cta-section .section-subtitle{position:relative;z-index:1;}

        /* Footer */
        .site-footer{
            background:var(--color-bg-deep);border-top:1px solid var(--color-border);
            padding:40px 0 30px;text-align:center;
        }
        .footer-logo{font-size:1.3rem;font-weight:700;color:#fff;margin-bottom:8px;}
        .footer-desc{font-size:0.85rem;color:var(--color-text-muted);max-width:480px;margin:0 auto 20px;}
        .footer-links{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-bottom:16px;}
        .footer-links a{font-size:0.88rem;color:var(--color-text-secondary);transition:color var(--transition-fast);}
        .footer-links a:hover{color:var(--color-accent-bright);}
        .footer-bottom{font-size:0.78rem;color:var(--color-text-muted);border-top:1px solid var(--color-border);padding-top:16px;margin-top:8px;}

        /* Responsive */
        @media(max-width:1024px){
            .hero-title{font-size:2.4rem;}
            .category-grid{grid-template-columns:repeat(2,1fr);}
            .features-grid{grid-template-columns:repeat(2,1fr);}
            .data-panel-grid{grid-template-columns:repeat(2,1fr);}
            .stats-grid{grid-template-columns:repeat(2,1fr);}
            .news-grid{grid-template-columns:1fr;}
        }
        @media(max-width:768px){
            .site-header{height:56px;}
            .desktop-nav{display:none;}
            .btn-nav-cta.desktop-only{display:none;}
            .mobile-tab-nav{display:flex;}
            body{padding-bottom:var(--tab-height-mobile);}
            .site-footer{padding-bottom:calc(var(--tab-height-mobile) + 24px);}
            .hero-section{min-height:440px;}
            .hero-title{font-size:1.8rem;}
            .hero-desc{font-size:0.95rem;}
            .category-grid{grid-template-columns:1fr;gap:16px;}
            .category-card{min-height:260px;}
            .category-card-img{height:160px;}
            .features-grid{grid-template-columns:1fr 1fr;gap:12px;}
            .feature-card{padding:20px 14px;}
            .data-panel-grid{grid-template-columns:1fr;}
            .stats-grid{grid-template-columns:1fr 1fr;gap:14px;}
            .section{padding:44px 0;}
            .section-title{font-size:1.5rem;}
            .news-card{flex-direction:column;gap:12px;}
            .news-card-thumb{width:100%;height:160px;}
            .logo-link{font-size:1.1rem;}
            .logo-icon{width:32px;height:32px;font-size:1rem;}
            .btn-primary-hero,.btn-outline-hero{padding:11px 22px;font-size:0.9rem;}
            .hero-btns{gap:10px;}
        }
        @media(max-width:520px){
            .hero-title{font-size:1.5rem;}
            .hero-desc{font-size:0.85rem;}
            .features-grid{grid-template-columns:1fr;}
            .stats-grid{grid-template-columns:1fr 1fr;gap:10px;}
            .stat-item .stat-value{font-size:1.6rem;}
            .section-title{font-size:1.3rem;}
            .container{padding-left:14px;padding-right:14px;}
            .dp-value{font-size:1.8rem;}
            .faq-question{font-size:0.88rem;padding:14px 16px;}
            .faq-answer{padding:0 16px 14px;font-size:0.82rem;}
        }

/* roulang page: article */
:root {
            --color-primary: #0a0e27;
            --color-primary-light: #141b3d;
            --color-accent: #00d4aa;
            --color-accent-glow: rgba(0, 212, 170, 0.25);
            --color-highlight: #f0a500;
            --color-highlight-light: rgba(240, 165, 0, 0.12);
            --color-bg: #f5f7fa;
            --color-bg-alt: #eef1f6;
            --color-surface: #ffffff;
            --color-surface-dark: #1a1f35;
            --color-text: #1a1a2e;
            --color-text-soft: #5a5f72;
            --color-text-muted: #8b8fa3;
            --color-border: #e2e6ed;
            --color-border-light: #eef1f6;
            --color-danger: #e74c3c;
            --color-success: #27ae60;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --shadow-xs: 0 1px 3px rgba(10, 14, 39, 0.04);
            --shadow-sm: 0 2px 8px rgba(10, 14, 39, 0.06);
            --shadow-md: 0 6px 22px rgba(10, 14, 39, 0.09);
            --shadow-lg: 0 14px 40px rgba(10, 14, 39, 0.12);
            --shadow-glow: 0 0 32px rgba(0, 212, 170, 0.18);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Menlo', monospace;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
        }

        *, *::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-sans);
            line-height: 1.65;
            color: var(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
            padding-bottom: 0;
        }
        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* Reading Progress Bar */
        .reading-progress {
            position: fixed; top: 0; left: 0; width: 0%; height: 3px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-highlight));
            z-index: 10000; transition: width 0.1s linear;
            border-radius: 0 2px 2px 0; box-shadow: 0 0 10px var(--color-accent-glow);
        }

        /* Header */
        .site-header {
            position: sticky; top: 0; z-index: 1000;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-smooth);
        }
        .site-header.scrolled { box-shadow: var(--shadow-sm); background: rgba(255, 255, 255, 0.95); }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: 64px; gap: 20px;
        }
        .logo-link {
            display: flex; align-items: center; gap: 10px;
            font-weight: 700; font-size: 1.2rem; color: var(--color-primary);
            white-space: nowrap; flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .logo-link:hover { color: var(--color-accent); }
        .logo-icon {
            display: flex; align-items: center; justify-content: center;
            width: 38px; height: 38px; border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: var(--color-accent); font-size: 1.1rem;
            box-shadow: var(--shadow-glow);
        }
        .desktop-nav { display: flex; align-items: center; gap: 6px; }
        .nav-link-item {
            display: inline-flex; align-items: center; padding: 8px 16px;
            border-radius: var(--radius-sm); font-weight: 500; font-size: 0.93rem;
            color: var(--color-text-soft); transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link-item:hover { color: var(--color-primary); background: var(--color-bg-alt); }
        .nav-link-item.active { color: var(--color-accent); background: rgba(0, 212, 170, 0.08); font-weight: 600; }
        .btn-nav-cta {
            display: inline-flex; align-items: center; padding: 9px 20px;
            border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem;
            background: var(--color-accent); color: var(--color-primary);
            white-space: nowrap; flex-shrink: 0;
            transition: all var(--transition-bounce);
            box-shadow: 0 2px 10px rgba(0, 212, 170, 0.3);
        }
        .btn-nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0, 212, 170, 0.4); color: var(--color-primary); }
        .desktop-only { display: inline-flex; }
        @media (max-width: 1024px) {
            .desktop-nav { gap: 2px; }
            .nav-link-item { padding: 8px 12px; font-size: 0.85rem; }
            .btn-nav-cta { padding: 8px 14px; font-size: 0.82rem; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .desktop-only { display: none; }
            .header-inner { height: 56px; justify-content: center; }
            .logo-link { font-size: 1.05rem; }
            .logo-icon { width: 32px; height: 32px; font-size: 0.95rem; }
        }

        /* Mobile Bottom Tab Navigation */
        .mobile-bottom-nav {
            display: none;
            position: fixed; bottom: 0; left: 0; right: 0; z-index: 999;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid var(--color-border-light);
            box-shadow: 0 -2px 16px rgba(10, 14, 39, 0.06);
            padding: 6px 8px 10px;
        }
        .mobile-bottom-nav-inner {
            display: flex; align-items: center; justify-content: space-around;
            max-width: 500px; margin: 0 auto;
        }
        .mobile-nav-tab {
            display: flex; flex-direction: column; align-items: center; gap: 3px;
            padding: 6px 8px; border-radius: var(--radius-sm);
            font-size: 0.68rem; font-weight: 500; color: var(--color-text-muted);
            transition: all var(--transition-fast); min-width: 52px;
            cursor: pointer; background: none; border: none;
        }
        .mobile-nav-tab i { font-size: 1.2rem; transition: color var(--transition-fast); }
        .mobile-nav-tab:hover { color: var(--color-primary); }
        .mobile-nav-tab.active { color: var(--color-accent); }
        .mobile-nav-tab.active i { color: var(--color-accent); }
        @media (max-width: 768px) {
            .mobile-bottom-nav { display: block; }
            body { padding-bottom: 80px; }
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--color-bg-alt);
            border-bottom: 1px solid var(--color-border-light);
            padding: 14px 0;
        }
        .breadcrumb-nav {
            display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
            font-size: 0.87rem; color: var(--color-text-muted);
        }
        .breadcrumb-nav a {
            color: var(--color-text-soft); transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover { color: var(--color-accent); }
        .breadcrumb-sep { color: var(--color-border); font-size: 0.7rem; }
        .breadcrumb-current { color: var(--color-text); font-weight: 500; }

        /* Article Hero */
        .article-hero {
            padding: 40px 0 32px;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
        }
        .article-hero-inner { max-width: 860px; margin: 0 auto; }
        .article-category-badge {
            display: inline-flex; align-items: center; gap: 6px;
            padding: 5px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 600;
            background: rgba(0, 212, 170, 0.1); color: var(--color-accent);
            margin-bottom: 16px; letter-spacing: 0.02em;
        }
        .article-category-badge i { font-size: 0.65rem; }
        .article-title-h1 {
            font-size: 2.1rem; font-weight: 700; line-height: 1.35;
            color: var(--color-primary); margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .article-meta-row {
            display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
            font-size: 0.88rem; color: var(--color-text-muted);
        }
        .article-meta-item {
            display: flex; align-items: center; gap: 6px;
        }
        .article-meta-item i { font-size: 0.85rem; color: var(--color-text-soft); }
        .article-meta-dot {
            width: 4px; height: 4px; border-radius: 50%; background: var(--color-border);
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .article-hero { padding: 28px 0 24px; }
            .article-title-h1 { font-size: 1.45rem; }
            .article-meta-row { gap: 10px; font-size: 0.8rem; }
        }

        /* Featured Image */
        .article-featured-image {
            max-width: 860px; margin: 0 auto 32px; border-radius: var(--radius-lg);
            overflow: hidden; box-shadow: var(--shadow-md);
            position: relative;
        }
        .article-featured-image img {
            width: 100%; height: auto; display: block;
            transition: transform 0.5s ease;
        }
        .article-featured-image:hover img { transform: scale(1.02); }
        @media (max-width: 768px) {
            .article-featured-image { margin: 0 16px 24px; border-radius: var(--radius-md); }
        }

        /* Article Content */
        .article-content-section {
            padding: 10px 0 50px;
        }
        .article-content-wrapper {
            max-width: 800px; margin: 0 auto;
        }
        .article-body {
            font-size: 1.05rem; line-height: 1.85; color: var(--color-text);
        }
        .article-body h2 {
            font-size: 1.5rem; font-weight: 700; color: var(--color-primary);
            margin: 36px 0 16px; padding-left: 16px;
            border-left: 4px solid var(--color-accent);
            line-height: 1.35;
        }
        .article-body h3 {
            font-size: 1.2rem; font-weight: 600; color: var(--color-primary);
            margin: 28px 0 12px;
        }
        .article-body p {
            margin-bottom: 18px; color: var(--color-text);
        }
        .article-body ul, .article-body ol {
            margin: 12px 0 20px 20px;
        }
        .article-body ul { list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li {
            margin-bottom: 8px; padding-left: 4px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--color-accent);
            background: rgba(0, 212, 170, 0.04);
            padding: 16px 22px; margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-soft); font-style: italic;
            font-size: 1rem;
        }
        .article-body img {
            border-radius: var(--radius-md); margin: 20px 0;
            box-shadow: var(--shadow-sm); max-width: 100%;
        }
        .article-body a {
            color: var(--color-accent); font-weight: 500;
            border-bottom: 1px solid transparent;
            transition: all var(--transition-fast);
        }
        .article-body a:hover { border-bottom-color: var(--color-accent); }
        .article-body strong { color: var(--color-primary); font-weight: 600; }
        .article-body table {
            width: 100%; border-collapse: collapse; margin: 20px 0;
            font-size: 0.93rem; border-radius: var(--radius-sm);
            overflow: hidden; box-shadow: var(--shadow-xs);
        }
        .article-body table th {
            background: var(--color-primary); color: #fff; padding: 12px 16px;
            font-weight: 600; text-align: left;
        }
        .article-body table td {
            padding: 10px 16px; border-bottom: 1px solid var(--color-border-light);
            background: var(--color-surface);
        }
        .article-body table tr:last-child td { border-bottom: none; }
        .article-body code {
            background: rgba(10, 14, 39, 0.06); padding: 3px 8px;
            border-radius: 4px; font-family: var(--font-mono); font-size: 0.88em;
        }
        @media (max-width: 768px) {
            .article-body { font-size: 0.98rem; }
            .article-body h2 { font-size: 1.25rem; margin: 28px 0 12px; }
            .article-body h3 { font-size: 1.08rem; }
        }

        /* Not Found */
        .not-found-section {
            padding: 80px 0 100px; text-align: center;
        }
        .not-found-icon {
            font-size: 5rem; color: var(--color-border); margin-bottom: 20px;
        }
        .not-found-title {
            font-size: 1.6rem; font-weight: 700; color: var(--color-primary);
            margin-bottom: 10px;
        }
        .not-found-desc {
            color: var(--color-text-soft); margin-bottom: 28px; font-size: 1rem;
        }

        /* Related Posts */
        .related-section {
            padding: 50px 0 60px;
            background: var(--color-bg-alt);
            border-top: 1px solid var(--color-border-light);
        }
        .section-label {
            font-size: 0.78rem; font-weight: 700; text-transform: uppercase;
            letter-spacing: 0.06em; color: var(--color-accent);
            margin-bottom: 8px;
        }
        .section-heading {
            font-size: 1.6rem; font-weight: 700; color: var(--color-primary);
            margin-bottom: 28px; letter-spacing: -0.01em;
        }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
            max-width: 920px; margin: 0 auto;
        }
        .related-card {
            background: var(--color-surface); border-radius: var(--radius-md);
            overflow: hidden; box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth); cursor: pointer;
            display: block;
        }
        .related-card:hover {
            box-shadow: var(--shadow-md); transform: translateY(-4px);
            border-color: transparent;
        }
        .related-card-img {
            width: 100%; height: 160px; object-fit: cover; display: block;
        }
        .related-card-body { padding: 16px 18px 18px; }
        .related-card-tag {
            font-size: 0.72rem; font-weight: 600; color: var(--color-accent);
            margin-bottom: 6px; letter-spacing: 0.03em;
        }
        .related-card-title {
            font-size: 0.95rem; font-weight: 600; color: var(--color-primary);
            line-height: 1.4; margin-bottom: 6px;
            display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-date {
            font-size: 0.78rem; color: var(--color-text-muted);
        }
        @media (max-width: 768px) {
            .related-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .related-card-img { height: 120px; }
            .related-card-title { font-size: 0.85rem; }
            .section-heading { font-size: 1.3rem; }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; max-width: 380px; }
        }

        /* CTA Section */
        .cta-section {
            padding: 55px 0 60px;
            background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; top: -60px; right: -80px;
            width: 300px; height: 300px; border-radius: 50%;
            background: rgba(0, 212, 170, 0.08);
            pointer-events: none;
        }
        .cta-section::after {
            content: ''; position: absolute; bottom: -40px; left: -60px;
            width: 200px; height: 200px; border-radius: 50%;
            background: rgba(240, 165, 0, 0.06);
            pointer-events: none;
        }
        .cta-inner {
            position: relative; z-index: 1; text-align: center; max-width: 600px; margin: 0 auto;
        }
        .cta-heading {
            font-size: 1.7rem; font-weight: 700; color: #ffffff;
            margin-bottom: 14px; letter-spacing: -0.01em;
        }
        .cta-desc {
            color: rgba(255,255,255,0.75); font-size: 1rem; margin-bottom: 28px;
            line-height: 1.6;
        }
        .btn-cta-primary {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 13px 32px; border-radius: var(--radius-sm);
            font-weight: 600; font-size: 0.95rem;
            background: var(--color-accent); color: var(--color-primary);
            transition: all var(--transition-bounce);
            box-shadow: 0 4px 18px rgba(0, 212, 170, 0.35);
            border: none; cursor: pointer;
        }
        .btn-cta-primary:hover {
            transform: translateY(-3px); box-shadow: 0 8px 28px rgba(0, 212, 170, 0.5);
            color: var(--color-primary);
        }
        .btn-outline-light-custom {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 13px 32px; border-radius: var(--radius-sm);
            font-weight: 600; font-size: 0.95rem;
            background: transparent; color: #ffffff;
            border: 2px solid rgba(255,255,255,0.35);
            transition: all var(--transition-fast);
        }
        .btn-outline-light-custom:hover {
            border-color: #fff; background: rgba(255,255,255,0.08); color: #fff;
        }
        @media (max-width: 768px) {
            .cta-heading { font-size: 1.3rem; }
            .btn-cta-primary, .btn-outline-light-custom { padding: 11px 24px; font-size: 0.88rem; }
        }

        /* Share Bar */
        .share-bar {
            display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
            padding: 20px 0; border-top: 1px solid var(--color-border-light);
            margin-top: 30px;
        }
        .share-label { font-size: 0.85rem; font-weight: 600; color: var(--color-text-soft); }
        .share-btn {
            display: inline-flex; align-items: center; justify-content: center;
            width: 38px; height: 38px; border-radius: 50%;
            background: var(--color-bg-alt); color: var(--color-text-soft);
            transition: all var(--transition-fast); border: none; cursor: pointer;
            font-size: 0.95rem;
        }
        .share-btn:hover { background: var(--color-primary); color: #fff; }

        /* Footer */
        .site-footer {
            background: var(--color-primary); color: rgba(255,255,255,0.7);
            padding: 44px 0 28px; text-align: center;
        }
        .footer-logo {
            font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 10px;
        }
        .footer-desc {
            max-width: 480px; margin: 0 auto 20px; font-size: 0.9rem;
            line-height: 1.6; color: rgba(255,255,255,0.55);
        }
        .footer-links {
            display: flex; justify-content: center; flex-wrap: wrap; gap: 20px;
            margin-bottom: 22px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.65); font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover { color: var(--color-accent); }
        .footer-bottom {
            font-size: 0.8rem; color: rgba(255,255,255,0.4);
            padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.1);
        }
        @media (max-width: 768px) {
            .site-footer { padding: 34px 0 100px; }
            .footer-links { gap: 14px; }
        }

        /* Back to top */
        .back-to-top {
            position: fixed; bottom: 100px; right: 20px; z-index: 998;
            width: 42px; height: 42px; border-radius: 50%;
            background: var(--color-surface); border: 1px solid var(--color-border);
            box-shadow: var(--shadow-md); display: flex; align-items: center;
            justify-content: center; color: var(--color-text-soft);
            cursor: pointer; transition: all var(--transition-fast);
            opacity: 0; transform: translateY(10px); pointer-events: none;
            font-size: 1rem;
        }
        .back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
        .back-to-top:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
        @media (max-width: 768px) {
            .back-to-top { bottom: 100px; right: 12px; width: 36px; height: 36px; font-size: 0.85rem; }
        }

        /* Pulse dot */
        .pulse-dot {
            display: inline-block; width: 8px; height: 8px; border-radius: 50%;
            background: var(--color-accent); margin-right: 6px;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 212, 170, 0.5); }
            50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(0, 212, 170, 0); }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0f1b3d;
            --color-primary-light: #162752;
            --color-primary-dark: #0a1229;
            --color-accent: #e8b830;
            --color-accent-hover: #c9a020;
            --color-accent-light: #f5d678;
            --color-red: #e63946;
            --color-green: #10b981;
            --color-orange: #f59e0b;
            --color-bg: #f0f2f5;
            --color-bg-alt: #f8f9fb;
            --color-card: #ffffff;
            --color-text: #1a1a2e;
            --color-text-secondary: #6b7280;
            --color-text-muted: #9ca3af;
            --color-border: #e5e7eb;
            --color-border-light: #f0f0f0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 4px rgba(15, 27, 61, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 27, 61, 0.10);
            --shadow-lg: 0 8px 32px rgba(15, 27, 61, 0.14);
            --shadow-xl: 0 16px 48px rgba(15, 27, 61, 0.18);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
            --header-height: 68px;
            --bottom-tab-height: 60px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 0;
            min-height: 100vh;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1180px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== HEADER ========== */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--color-border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: 0 1px 6px rgba(15, 27, 61, 0.05);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 28px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.22rem;
            color: var(--color-primary);
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            font-family: var(--font-heading);
            letter-spacing: 0.02em;
        }

        .logo-link:hover {
            opacity: 0.85;
            color: var(--color-primary);
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: var(--radius-sm);
            color: var(--color-accent);
            font-size: 1.1rem;
            box-shadow: 0 2px 8px rgba(15, 27, 61, 0.2);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: 24px;
            font-weight: 500;
            font-size: 0.96rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-link-item:hover {
            color: var(--color-primary);
            background-color: rgba(15, 27, 61, 0.05);
        }

        .nav-link-item.active {
            color: #ffffff;
            background-color: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(15, 27, 61, 0.25);
        }

        .nav-link-item.active:hover {
            color: #ffffff;
            background-color: var(--color-primary-light);
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.93rem;
            white-space: nowrap;
            background: linear-gradient(135deg, var(--color-accent) 0%, #d4a520 100%);
            color: #1a1a2e;
            border: none;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            box-shadow: 0 3px 14px rgba(232, 184, 48, 0.3);
        }

        .btn-nav-cta:hover {
            background: linear-gradient(135deg, #d4a520 0%, #b8901a 100%);
            color: #0f1b3d;
            box-shadow: 0 5px 22px rgba(232, 184, 48, 0.45);
            transform: translateY(-1px);
        }

        /* ========== BOTTOM TAB NAV (Mobile) ========== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: #ffffff;
            border-top: 1px solid var(--color-border-light);
            box-shadow: 0 -2px 16px rgba(15, 27, 61, 0.10);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }

        .bottom-tab-nav .tab-list {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .bottom-tab-nav .tab-item {
            flex: 1;
            text-align: center;
        }

        .bottom-tab-nav .tab-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            padding: 6px 4px;
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .bottom-tab-nav .tab-link i {
            font-size: 1.25rem;
            transition: color var(--transition-fast);
        }

        .bottom-tab-nav .tab-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .bottom-tab-nav .tab-link.active i {
            color: var(--color-accent);
        }

        .bottom-tab-nav .tab-link:hover {
            color: var(--color-primary);
        }

        /* ========== PAGE BANNER ========== */
        .category-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 70px 0 64px;
            color: #ffffff;
            min-height: 260px;
            display: flex;
            align-items: center;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 61, 0.88) 0%, rgba(15, 27, 61, 0.72) 100%);
            z-index: 1;
        }

        .category-banner .banner-content {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom a:hover {
            color: var(--color-accent-light);
        }

        .breadcrumb-custom .separator {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.75rem;
        }

        .breadcrumb-custom .current {
            color: var(--color-accent-light);
            font-weight: 500;
        }

        .category-banner .banner-title {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
            color: #ffffff;
        }

        .category-banner .banner-subtitle {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
            line-height: 1.6;
        }

        .banner-stats-row {
            display: flex;
            gap: 32px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.9rem;
        }

        .banner-stat-item i {
            color: var(--color-accent);
            font-size: 1.05rem;
        }

        .banner-stat-item strong {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            margin-right: 2px;
        }

        /* ========== SECTION COMMONS ========== */
        .section-block {
            padding: 56px 0;
        }

        .section-block.section-alt {
            background-color: var(--color-bg-alt);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 0.82rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-accent-hover);
            background-color: rgba(232, 184, 48, 0.10);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .section-desc {
            color: var(--color-text-secondary);
            font-size: 0.98rem;
            max-width: 640px;
            line-height: 1.65;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header.text-center {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .section-header.text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== CARDS ========== */
        .event-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .event-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }

        .event-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

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

        .event-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }

        .event-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 0.76rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .badge-live {
            background: var(--color-red);
            color: #ffffff;
            animation: pulse-live 2s infinite;
        }

        .badge-upcoming {
            background: var(--color-orange);
            color: #1a1a2e;
        }

        .badge-ended {
            background: #6b7280;
            color: #ffffff;
        }

        @keyframes pulse-live {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.75;
            }
        }

        .event-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .event-card .card-category-tag {
            font-size: 0.78rem;
            color: var(--color-accent-hover);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 6px;
            text-transform: uppercase;
        }

        .event-card .card-title {
            font-family: var(--font-heading);
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .event-card .card-title a {
            color: inherit;
            transition: color var(--transition-fast);
        }

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

        .event-card .card-meta {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: auto;
            padding-top: 10px;
        }

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

        .event-card .card-meta i {
            font-size: 0.8rem;
        }

        /* ========== TIMELINE LIST ========== */
        .timeline-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .timeline-item {
            display: flex;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: background var(--transition-fast);
        }

        .timeline-item:last-child {
            border-bottom: none;
        }

        .timeline-time-badge {
            flex-shrink: 0;
            width: 70px;
            height: 56px;
            background: var(--color-primary);
            color: #ffffff;
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            line-height: 1.2;
        }

        .timeline-time-badge .time-date {
            font-size: 1.3rem;
        }

        .timeline-time-badge .time-month {
            font-size: 0.72rem;
            letter-spacing: 0.05em;
            opacity: 0.85;
        }

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

        .timeline-info .tl-title {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            margin-bottom: 3px;
        }

        .timeline-info .tl-detail {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        .timeline-score {
            flex-shrink: 0;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .timeline-score .score-divider {
            color: var(--color-text-muted);
            font-weight: 400;
        }

        .timeline-score .score-live {
            color: var(--color-red);
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.05em;
        }

        /* ========== STATS BLOCK ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .stat-card .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(15, 27, 61, 0.07);
            color: var(--color-primary);
            font-size: 1.3rem;
            margin-bottom: 12px;
        }

        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: 0.84rem;
            color: var(--color-text-secondary);
            letter-spacing: 0.03em;
        }

        /* ========== TAG FILTERS ========== */
        .tag-filters {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag-filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            border-radius: 24px;
            border: 1.5px solid var(--color-border);
            background: #ffffff;
            color: var(--color-text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .tag-filter-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(15, 27, 61, 0.03);
        }

        .tag-filter-btn.active-tag {
            background: var(--color-primary);
            color: #ffffff;
            border-color: var(--color-primary);
            font-weight: 600;
            box-shadow: 0 3px 12px rgba(15, 27, 61, 0.25);
        }

        .tag-filter-btn i {
            font-size: 0.85rem;
        }

        /* ========== FAQ ========== */
        .faq-list .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--color-card);
            box-shadow: var(--shadow-sm);
        }

        .faq-list .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            background: transparent;
            padding: 18px 22px;
            box-shadow: none !important;
            border-radius: var(--radius-md) !important;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .faq-list .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background-color: rgba(15, 27, 61, 0.03);
        }

        .faq-list .accordion-button:focus {
            outline: 2px solid rgba(15, 27, 61, 0.2);
            outline-offset: -2px;
        }

        .faq-list .accordion-button::after {
            filter: brightness(0) saturate(0%) opacity(40%);
        }

        .faq-list .accordion-body {
            padding: 6px 22px 20px;
            color: var(--color-text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: #ffffff;
            padding: 56px 0;
            text-align: center;
            border-radius: 0;
        }

        .cta-section .cta-title {
            font-family: var(--font-heading);
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .cta-section .cta-desc {
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 24px;
            font-size: 0.98rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 32px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--color-accent);
            color: #1a1a2e;
            border: none;
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(232, 184, 48, 0.4);
        }

        .btn-cta-primary:hover {
            background: #d4a520;
            box-shadow: 0 6px 28px rgba(232, 184, 48, 0.55);
            transform: translateY(-2px);
            color: #0f1b3d;
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 28px;
            font-weight: 500;
            font-size: 0.95rem;
            background: transparent;
            color: #ffffff;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .btn-outline-light-custom:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 28px;
            font-size: 0.9rem;
            text-align: center;
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }

        .footer-desc {
            max-width: 500px;
            margin: 0 auto 20px;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 20px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-weight: 500;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--color-accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 16px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .desktop-nav {
                gap: 2px;
            }
            .nav-link-item {
                padding: 8px 13px;
                font-size: 0.88rem;
            }
            .btn-nav-cta {
                padding: 9px 16px;
                font-size: 0.85rem;
            }
            .category-banner .banner-title {
                font-size: 2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .event-card .card-title {
                font-size: 1rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 56px;
            }
            .site-header {
                height: var(--header-height);
            }
            .header-inner {
                gap: 12px;
            }
            .desktop-nav {
                display: none !important;
            }
            .desktop-only {
                display: none !important;
            }
            .logo-link {
                font-size: 1.05rem;
                gap: 7px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: var(--bottom-tab-height);
            }
            .category-banner {
                padding: 44px 0 40px;
                min-height: 200px;
            }
            .category-banner .banner-title {
                font-size: 1.55rem;
            }
            .category-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .banner-stats-row {
                gap: 18px;
                margin-top: 12px;
            }
            .banner-stat-item {
                font-size: 0.78rem;
            }
            .banner-stat-item strong {
                font-size: 1.05rem;
            }
            .section-block {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-card {
                padding: 18px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .stat-card .stat-icon {
                width: 38px;
                height: 38px;
                font-size: 1.1rem;
            }
            .timeline-item {
                flex-direction: column;
                gap: 10px;
            }
            .timeline-time-badge {
                width: 100%;
                height: auto;
                flex-direction: row;
                gap: 10px;
                padding: 8px 14px;
                border-radius: var(--radius-sm);
                justify-content: center;
            }
            .timeline-time-badge .time-date {
                font-size: 1rem;
            }
            .timeline-score {
                justify-content: flex-start;
            }
            .tag-filters {
                gap: 7px;
            }
            .tag-filter-btn {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .cta-section {
                padding: 36px 0;
            }
            .cta-section .cta-title {
                font-size: 1.35rem;
            }
            .event-card .card-body {
                padding: 14px 15px 16px;
            }
            .faq-list .accordion-button {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-list .accordion-body {
                padding: 4px 16px 16px;
                font-size: 0.85rem;
            }
            .site-footer {
                padding: 36px 0 90px;
                font-size: 0.82rem;
            }
            .footer-links {
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .category-banner .banner-title {
                font-size: 1.3rem;
            }
            .banner-stats-row {
                flex-direction: column;
                gap: 6px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 14px 10px;
            }
            .stat-card .stat-number {
                font-size: 1.3rem;
            }
            .timeline-time-badge {
                width: 100%;
            }
            .event-card .card-title {
                font-size: 0.9rem;
            }
            .tag-filter-btn {
                padding: 6px 11px;
                font-size: 0.75rem;
                border-radius: 18px;
            }
            .btn-cta-primary {
                padding: 11px 24px;
                font-size: 0.9rem;
            }
            .btn-outline-light-custom {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .bottom-tab-nav .tab-link {
                font-size: 0.62rem;
                padding: 4px 2px;
                gap: 2px;
            }
            .bottom-tab-nav .tab-link i {
                font-size: 1.1rem;
            }
        }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #0f4c81;
            --color-primary-dark: #0a3560;
            --color-primary-light: #1a6aad;
            --color-accent: #e8a817;
            --color-accent-dark: #c48e14;
            --color-accent-light: #f5c34a;
            --color-teal: #00b894;
            --color-teal-dark: #009a7d;
            --color-bg: #f6f8fb;
            --color-bg-alt: #eef2f7;
            --color-bg-dark: #091524;
            --color-bg-card: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-light: #94a3b8;
            --color-text-on-dark: #e2e8f0;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.07), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.05);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.13), 0 8px 20px rgba(0,0,0,0.06);
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --header-height: 68px;
            --bottom-tab-height: 60px;
        }

        /* ========== 基础重置 ========== */
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
        }
        ul, ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
        }
        p {
            margin: 0;
        }

        /* ========== 容器 ========== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 9px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--color-primary);
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }
        .logo-link:hover {
            opacity: 0.85;
            color: var(--color-primary-dark);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.05rem;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link-item:hover {
            color: var(--color-primary);
            background: rgba(15,76,129,0.05);
        }
        .nav-link-item.active {
            color: var(--color-primary);
            background: rgba(15,76,129,0.08);
        }
        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: #1a1a1a;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(232,168,23,0.3);
        }
        .btn-nav-cta:hover {
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            box-shadow: 0 4px 16px rgba(232,168,23,0.45);
            transform: translateY(-1px);
            color: #1a1a1a;
        }
        .desktop-only {
            display: inline-flex;
        }
        @media (max-width: 991px) {
            .desktop-nav {
                display: none;
            }
            .desktop-only {
                display: none;
            }
            .header-inner {
                justify-content: center;
            }
            .logo-link {
                font-size: 1.1rem;
            }
        }

        /* ========== 移动端底部 Tab 导航 ========== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--color-border);
            box-shadow: 0 -4px 16px rgba(0,0,0,0.06);
            height: var(--bottom-tab-height);
            padding: 0 8px;
        }
        .bottom-tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            flex: 1;
            height: 100%;
            color: var(--color-text-light);
            font-size: 0.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            position: relative;
            padding: 4px 0;
            border-radius: 6px;
        }
        .bottom-tab-link i {
            font-size: 1.25rem;
            transition: all var(--transition-fast);
        }
        .bottom-tab-link:hover {
            color: var(--color-primary);
        }
        .bottom-tab-link.active {
            color: var(--color-primary);
        }
        .bottom-tab-link.active::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 0 0 3px 3px;
        }
        @media (max-width: 991px) {
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: calc(var(--bottom-tab-height) + 12px);
            }
        }

        /* ========== 页面 Banner ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(160deg, var(--color-bg-dark) 0%, #0d1f3c 40%, #0f2a50 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 64px 0 56px;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232,168,23,0.15) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 30%, rgba(15,76,129,0.4) 0%, transparent 55%);
            pointer-events: none;
        }
        .page-banner .container-custom {
            position: relative;
            z-index: 1;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: rgba(255,255,255,0.8);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-sep {
            color: rgba(255,255,255,0.4);
            font-size: 0.7rem;
        }
        .page-banner-title {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            color: #fff;
        }
        .page-banner-title .accent {
            color: var(--color-accent);
        }
        .page-banner-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            max-width: 620px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }
        .banner-stats-row {
            display: flex;
            justify-content: center;
            gap: 36px;
            flex-wrap: wrap;
        }
        .banner-stat-item {
            text-align: center;
        }
        .banner-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
        }
        .banner-stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 44px 0 36px;
            }
            .page-banner-title {
                font-size: 1.8rem;
            }
            .page-banner-desc {
                font-size: 0.95rem;
            }
            .banner-stats-row {
                gap: 20px;
            }
            .banner-stat-num {
                font-size: 1.5rem;
            }
        }

        /* ========== 通用板块 ========== */
        .section-block {
            padding: 56px 0;
        }
        .section-block-alt {
            background: var(--color-bg-alt);
        }
        .section-block-dark {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            background: rgba(15,76,129,0.07);
            padding: 6px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .section-title-light {
            color: #fff;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 680px;
            line-height: 1.65;
        }
        .section-desc-light {
            color: rgba(255,255,255,0.7);
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-desc {
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section-block {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* ========== 卡片组件 ========== */
        .card-guide {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-slow);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border-light);
            cursor: pointer;
        }
        .card-guide:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-xl);
            border-color: transparent;
        }
        .card-guide-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-alt);
        }
        .card-guide-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-guide:hover .card-guide-img-wrap img {
            transform: scale(1.06);
        }
        .card-guide-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 50px;
            z-index: 2;
        }
        .card-guide-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-guide-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-guide-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-guide-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--color-text-light);
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
        }
        .card-guide-meta i {
            margin-right: 3px;
        }

        /* ========== 赛事数据卡片 ========== */
        .match-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .match-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .match-league-badge {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 50px;
            background: rgba(232,168,23,0.15);
            color: var(--color-accent-dark);
            white-space: nowrap;
        }
        .match-teams {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            flex: 1;
            min-width: 140px;
        }
        .match-time {
            font-size: 0.82rem;
            color: var(--color-text-secondary);
            white-space: nowrap;
        }
        .match-odds {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .odds-chip {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            background: var(--color-bg-alt);
            color: var(--color-text);
            border: 1px solid var(--color-border);
        }
        .odds-chip.highlight {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        @media (max-width: 768px) {
            .match-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .match-odds {
                width: 100%;
            }
        }

        /* ========== 策略要点卡片 ========== */
        .strategy-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            text-align: center;
            height: 100%;
        }
        .strategy-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .strategy-icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(15,76,129,0.1), rgba(15,76,129,0.2));
            color: var(--color-primary);
            font-size: 1.4rem;
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }
        .strategy-card:hover .strategy-icon-circle {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
        }
        .strategy-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .strategy-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            background: none;
            border: none;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--color-text-light);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* ========== CTA 板块 ========== */
        .cta-band {
            background: linear-gradient(160deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(232,168,23,0.2) 0%, transparent 55%);
            pointer-events: none;
        }
        .cta-band .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-band h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-band p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: var(--color-accent);
            color: #1a1a1a;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(0,0,0,0.2);
        }
        .btn-cta-large:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.3);
            color: #1a1a1a;
        }
        .btn-outline-light-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.5);
            color: #fff;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .btn-outline-light-lg:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.1);
            color: #fff;
        }
        @media (max-width: 768px) {
            .cta-band {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-band h2 {
                font-size: 1.4rem;
            }
        }

        /* ========== 深色数据区块 ========== */
        .dark-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .dark-stat-card {
            text-align: center;
            padding: 24px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.08);
            transition: all var(--transition-fast);
        }
        .dark-stat-card:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.15);
        }
        .dark-stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 6px;
        }
        .dark-stat-label {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.7);
        }
        @media (max-width: 768px) {
            .dark-stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .dark-stat-value {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 480px) {
            .dark-stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark);
            padding: 48px 0 24px;
            text-align: center;
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            max-width: 480px;
            margin: 0 auto 20px;
            line-height: 1.6;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 20px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.45);
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 16px;
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 32px 0 20px;
            }
            .footer-links {
                gap: 14px;
            }
        }

        /* ========== Bootstrap 覆盖 ========== */
        .btn {
            border-radius: 50px;
            font-weight: 700;
            transition: all var(--transition-base);
        }
        .btn-primary {
            background: var(--color-primary);
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            border-color: var(--color-primary-dark);
        }
        .btn-outline-primary {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-outline-primary:hover {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }
        .row {
            --bs-gutter-y: 1.5rem;
        }
        .card {
            border: none;
            border-radius: var(--radius-lg);
        }

        /* ========== 工具类 ========== */
        .text-accent {
            color: var(--color-accent) !important;
        }
        .text-primary-custom {
            color: var(--color-primary) !important;
        }
        .bg-light-custom {
            background: var(--color-bg-alt) !important;
        }
        .mt-section {
            margin-top: 48px;
        }
        .gap-20 {
            gap: 20px;
        }

        /* ========== 响应式网格修正 ========== */
        @media (max-width: 991px) {
            .col-lg-4 {
                margin-bottom: 16px;
            }
        }
        @media (max-width: 520px) {
            .page-banner-title {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .card-guide-title {
                font-size: 0.95rem;
            }
        }

/* roulang page: category3 */
/* ============ 设计变量 ============ */
        :root {
            --color-primary: #0b1e3d;
            --color-primary-light: #132d56;
            --color-accent: #1a56db;
            --color-accent-glow: #3b82f6;
            --color-highlight: #00d4aa;
            --color-warm: #f0a500;
            --color-danger: #e63946;
            --color-bg-dark: #080f1a;
            --color-bg-mid: #0d1b2a;
            --color-bg-card: #111d30;
            --color-bg-light: #f5f7fa;
            --color-bg-white: #ffffff;
            --color-text-primary: #1a1a2e;
            --color-text-secondary: #555770;
            --color-text-light: #8890a7;
            --color-text-on-dark: #e8ecf2;
            --color-text-on-dark-muted: #9aa4b8;
            --color-border: #e0e4ea;
            --color-border-dark: #1e2d45;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
            --shadow-glow: 0 0 24px rgba(26,86,219,0.25);
            --shadow-card-dark: 0 4px 20px rgba(0,0,0,0.3), 0 1px 4px rgba(255,255,255,0.04);
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Menlo', monospace;
        }

        /* ============ Reset & Base ============ */
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--color-text-primary);
            background-color: var(--color-bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        ul, ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
        }
        p {
            margin: 0;
        }

        /* ============ Container Override ============ */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ============ Header ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(11, 30, 61, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-dark);
            box-shadow: 0 2px 12px rgba(0,0,0,0.25);
            transition: background var(--transition-smooth);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 20px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            white-space: nowrap;
            letter-spacing: 0.01em;
            transition: color var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--color-accent-glow);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-glow));
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 2px 10px rgba(26,86,219,0.35);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-on-dark-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-link-item:hover {
            color: #ffffff;
            background: rgba(255,255,255,0.06);
        }
        .nav-link-item.active {
            color: #ffffff;
            background: rgba(26,86,219,0.2);
            font-weight: 600;
            box-shadow: inset 0 0 0 1px rgba(26,86,219,0.4);
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            background: var(--color-accent);
            color: #fff;
            border: none;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(26,86,219,0.3);
        }
        .btn-nav-cta:hover {
            background: var(--color-accent-glow);
            box-shadow: 0 4px 16px rgba(26,86,219,0.45);
            color: #fff;
            transform: translateY(-1px);
        }

        /* ============ Mobile Bottom Tab Nav ============ */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(11, 23, 42, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--color-border-dark);
            padding: 6px 8px 10px;
            box-shadow: 0 -4px 20px rgba(0,0,0,0.4);
        }
        .bottom-tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            max-width: 500px;
            margin: 0 auto;
        }
        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            padding: 6px 10px;
            border-radius: 10px;
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--color-text-on-dark-muted);
            transition: all var(--transition-fast);
            min-width: 56px;
            text-align: center;
            background: transparent;
            border: none;
            cursor: pointer;
        }
        .bottom-tab-item i {
            font-size: 1.25rem;
            transition: color var(--transition-fast);
        }
        .bottom-tab-item:hover {
            color: #e0e4ea;
        }
        .bottom-tab-item.active {
            color: var(--color-accent-glow);
            font-weight: 700;
        }
        .bottom-tab-item.active i {
            color: var(--color-accent-glow);
            text-shadow: 0 0 10px rgba(59,130,246,0.5);
        }

        /* ============ Hero ============ */
        .category-hero {
            position: relative;
            background: linear-gradient(160deg, var(--color-bg-dark) 0%, var(--color-bg-mid) 40%, var(--color-primary) 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            padding: 70px 0 60px;
            color: #ffffff;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 20%, rgba(26,86,219,0.18) 0%, transparent 60%),
                        radial-gradient(ellipse at 30% 80%, rgba(0,212,170,0.1) 0%, transparent 50%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-on-dark-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .hero-breadcrumb a {
            color: var(--color-text-on-dark-muted);
            transition: color var(--transition-fast);
        }
        .hero-breadcrumb a:hover {
            color: #ffffff;
        }
        .hero-breadcrumb .separator {
            color: rgba(255,255,255,0.3);
            font-size: 0.7rem;
        }
        .hero-breadcrumb .current {
            color: var(--color-accent-glow);
            font-weight: 600;
        }
        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .category-hero .hero-subtitle {
            font-size: 1.15rem;
            color: var(--color-text-on-dark-muted);
            max-width: 620px;
            line-height: 1.6;
            margin-bottom: 24px;
        }
        .hero-stat-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-highlight);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--color-text-on-dark-muted);
            line-height: 1.3;
        }

        /* ============ Section Spacing ============ */
        .section-spacing {
            padding: 64px 0;
        }
        .section-spacing-sm {
            padding: 48px 0;
        }
        .section-dark {
            background: var(--color-bg-mid);
            color: var(--color-text-on-dark);
        }
        .section-white {
            background: var(--color-bg-white);
        }
        .section-light {
            background: var(--color-bg-light);
        }

        /* ============ Section Titles ============ */
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 8px;
            padding: 4px 12px;
            border-radius: 20px;
            background: rgba(26,86,219,0.08);
        }
        .section-dark .section-label {
            background: rgba(59,130,246,0.2);
            color: var(--color-accent-glow);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
            color: var(--color-text-primary);
        }
        .section-dark .section-title {
            color: #ffffff;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 640px;
            line-height: 1.6;
            margin-bottom: 36px;
        }
        .section-dark .section-desc {
            color: var(--color-text-on-dark-muted);
        }

        /* ============ Metric Cards ============ */
        .metric-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            height: 100%;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #d0d6e0;
        }
        .metric-icon-wrap {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            background: rgba(26,86,219,0.08);
            color: var(--color-accent);
        }
        .metric-icon-wrap.warm {
            background: rgba(240,165,0,0.1);
            color: var(--color-warm);
        }
        .metric-icon-wrap.teal {
            background: rgba(0,212,170,0.1);
            color: var(--color-highlight);
        }
        .metric-icon-wrap.red {
            background: rgba(230,57,70,0.08);
            color: var(--color-danger);
        }
        .metric-info {
            flex: 1;
            min-width: 0;
        }
        .metric-value {
            font-size: 1.8rem;
            font-weight: 800;
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            color: var(--color-text-primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }
        .metric-label-text {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }
        .metric-trend {
            font-size: 0.78rem;
            font-weight: 600;
            margin-top: 2px;
        }
        .metric-trend.up {
            color: #10b981;
        }
        .metric-trend.stable {
            color: var(--color-text-light);
        }

        /* ============ Tool Cards ============ */
        .tool-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            text-align: center;
            height: 100%;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #c8d0dc;
        }
        .tool-icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 16px;
            background: linear-gradient(135deg, rgba(26,86,219,0.1), rgba(59,130,246,0.05));
            color: var(--color-accent);
        }
        .tool-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-primary);
        }
        .tool-card p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
        }

        /* ============ Article Cards ============ */
        .article-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-smooth);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .article-card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e8ecf2;
        }
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .article-card:hover .article-card-img img {
            transform: scale(1.04);
        }
        .article-card-body {
            padding: 20px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .article-tag {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 14px;
            background: rgba(26,86,219,0.07);
            color: var(--color-accent);
            letter-spacing: 0.02em;
        }
        .article-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--color-text-primary);
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-card-body h3 {
            color: var(--color-accent);
        }
        .article-card-body .article-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
            flex: 1;
            margin-bottom: 12px;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.78rem;
            color: var(--color-text-light);
        }
        .article-card-meta i {
            margin-right: 4px;
        }

        /* ============ Data Comparison Band ============ */
        .comparison-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: stretch;
        }
        .comparison-card {
            flex: 1;
            min-width: 260px;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            border: 1px solid var(--color-border-dark);
            box-shadow: var(--shadow-card-dark);
            transition: all var(--transition-smooth);
        }
        .comparison-card:hover {
            box-shadow: 0 8px 28px rgba(0,0,0,0.4);
            border-color: rgba(59,130,246,0.3);
        }
        .comparison-card .comp-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .comp-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .comp-dot.blue { background: var(--color-accent-glow); box-shadow: 0 0 10px rgba(59,130,246,0.5); }
        .comp-dot.teal { background: var(--color-highlight); box-shadow: 0 0 10px rgba(0,212,170,0.5); }
        .comp-dot.gold { background: var(--color-warm); box-shadow: 0 0 10px rgba(240,165,0,0.5); }
        .comparison-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
        }
        .comparison-card .comp-value {
            font-size: 2.2rem;
            font-weight: 800;
            font-family: var(--font-mono);
            letter-spacing: -0.03em;
            color: #ffffff;
            margin-bottom: 4px;
        }
        .comparison-card .comp-detail {
            font-size: 0.82rem;
            color: var(--color-text-on-dark-muted);
            line-height: 1.5;
        }

        /* ============ FAQ ============ */
        .faq-accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            background: var(--color-bg-white);
            overflow: hidden;
            transition: box-shadow var(--transition-fast);
        }
        .faq-accordion-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion-button {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--color-text-primary);
            background: transparent;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .faq-accordion-button:hover {
            background: rgba(0,0,0,0.02);
        }
        .faq-accordion-button i {
            font-size: 0.8rem;
            color: var(--color-text-light);
            transition: transform var(--transition-fast);
        }
        .faq-accordion-button[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-accordion-body {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.65;
        }

        /* ============ CTA ============ */
        .cta-band {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #0a2745 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,0.2) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-band h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-band p {
            font-size: 1.02rem;
            color: var(--color-text-on-dark-muted);
            max-width: 500px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 700;
            background: var(--color-accent-glow);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 18px rgba(59,130,246,0.4);
            position: relative;
            z-index: 1;
        }
        .btn-cta-lg:hover {
            background: #4d94ff;
            box-shadow: 0 6px 24px rgba(59,130,246,0.55);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255,255,255,0.35);
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1;
        }
        .btn-outline-cta:hover {
            border-color: #ffffff;
            background: rgba(255,255,255,0.08);
            color: #fff;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-bg-dark);
            color: var(--color-text-on-dark-muted);
            padding: 48px 0 32px;
            border-top: 1px solid var(--color-border-dark);
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .footer-desc {
            font-size: 0.88rem;
            max-width: 480px;
            line-height: 1.55;
            margin-bottom: 20px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 20px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--color-text-on-dark-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.35);
            border-top: 1px solid var(--color-border-dark);
            padding-top: 18px;
        }

        /* ============ Buttons Global ============ */
        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(26,86,219,0.25);
        }
        .btn-brand:hover {
            background: var(--color-accent-glow);
            box-shadow: 0 4px 14px rgba(26,86,219,0.4);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-outline-brand {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            color: var(--color-accent);
            border: 2px solid var(--color-accent);
            transition: all var(--transition-fast);
        }
        .btn-outline-brand:hover {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26,86,219,0.3);
        }

        /* ============ Loading Skeleton (optional visual) ============ */
        .skeleton-pulse {
            animation: skeletonPulse 1.8s ease-in-out infinite;
            background: linear-gradient(90deg, #e8ecf2 25%, #f0f3f6 50%, #e8ecf2 75%);
            background-size: 200% 100%;
            border-radius: var(--radius-sm);
        }
        @keyframes skeletonPulse {
            0% { background-position: 200% 0; }
            100% { background-position: -200% 0; }
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 2.1rem;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-band {
                padding: 36px 24px;
            }
            .cta-band h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav,
            .desktop-only {
                display: none !important;
            }
            .bottom-tab-nav {
                display: block;
            }
            body {
                padding-bottom: 80px;
            }
            .header-inner {
                height: 54px;
            }
            .logo-link {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
                border-radius: 8px;
            }
            .category-hero {
                padding: 44px 0 36px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-stat-row {
                gap: 16px;
            }
            .hero-stat-number {
                font-size: 1.3rem;
            }
            .section-spacing {
                padding: 40px 0;
            }
            .section-spacing-sm {
                padding: 32px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .metric-card {
                padding: 20px 16px;
                gap: 12px;
            }
            .metric-icon-wrap {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
                border-radius: 10px;
            }
            .metric-value {
                font-size: 1.35rem;
            }
            .comparison-card .comp-value {
                font-size: 1.5rem;
            }
            .cta-band {
                padding: 28px 18px;
                border-radius: var(--radius-lg);
            }
            .cta-band h2 {
                font-size: 1.25rem;
            }
            .btn-cta-lg,
            .btn-outline-cta {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .article-card-body h3 {
                font-size: 0.95rem;
            }
            .site-footer {
                padding: 32px 0 24px;
            }
            .footer-links {
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .hero-stat-row {
                gap: 12px;
                flex-direction: column;
            }
            .hero-stat-item {
                gap: 6px;
            }
            .hero-stat-number {
                font-size: 1.2rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .metric-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .comparison-row {
                flex-direction: column;
            }
            .bottom-tab-item {
                font-size: 0.62rem;
                padding: 4px 6px;
                min-width: 44px;
            }
            .bottom-tab-item i {
                font-size: 1.1rem;
            }
            .article-card-body {
                padding: 14px 12px 14px;
            }
            .faq-accordion-button {
                padding: 14px 16px;
                font-size: 0.88rem;
            }
            .faq-accordion-body {
                padding: 0 16px 14px;
                font-size: 0.82rem;
            }
        }