/* roulang page: index */
:root {
  --primary: #00e5ff;
  --primary-dark: #00b8d9;
  --primary-glow: rgba(0,229,255,.18);
  --accent: #a855f7;
  --accent-2: #ffb800;
  --bg-dark: #0a0e1a;
  --bg-darker: #060913;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --bg-soft: #16202e;
  --text-light: #f0f4ff;
  --text-muted: #8892a6;
  --text-faint: #5c657a;
  --border-color: #1e293b;
  --border-light: #2a3548;
  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 30px rgba(0,0,0,.35);
  --shadow-glow: 0 0 24px rgba(0,229,255,.12);
  --shadow-btn: 0 4px 18px rgba(0,229,255,.25);
  --transition: all .3s cubic-bezier(.25,.8,.25,1);
  --sidebar-w: 250px;
  --font-main: -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{font-family:var(--font-main);font-size:16px;line-height:1.7;background:var(--bg-dark);color:var(--text-light);scroll-behavior:smooth}
body.off-canvas-content{overflow-x:hidden}
img,svg,iframe{max-width:100%;border:0;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
ul,ol{list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
::selection{background:rgba(0,229,255,.3)}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.app-shell{display:flex;min-height:100vh}
.app-sidebar{position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);background:var(--bg-darker);border-right:1px solid var(--border-color);padding:24px 18px 20px;z-index:120;display:flex;flex-direction:column;overflow-y:auto;transition:var(--transition)}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:4px 6px 18px;border-bottom:1px solid var(--border-color);margin-bottom:16px}
.brand-icon{width:42px;height:42px;flex-shrink:0;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;box-shadow:0 0 16px rgba(0,229,255,.3)}
.brand-name{font-size:17px;font-weight:800;line-height:1.35;color:var(--text-light);letter-spacing:.5px}
.brand-sub{font-size:11px;color:var(--text-muted);font-weight:400;letter-spacing:1px}
.nav-label{font-size:11px;text-transform:uppercase;letter-spacing:2px;color:var(--text-faint);padding:16px 10px 8px;font-weight:700}
.sidebar-nav{display:flex;flex-direction:column;gap:4px}
.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:var(--text-muted);font-size:14.5px;font-weight:500;border:1px solid transparent;position:relative}
.sidebar-nav a i{width:20px;text-align:center;font-size:15px}
.sidebar-nav a:hover{color:var(--text-light);background:var(--bg-card);border-color:var(--border-light);transform:translateX(3px)}
.sidebar-nav a.active{color:var(--primary);background:rgba(0,229,255,.08);border-color:rgba(0,229,255,.2)}
.sidebar-nav a.active::before{content:'';position:absolute;left:-18px;top:50%;transform:translateY(-50%);width:3px;height:20px;border-radius:4px;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.sidebar-bottom{margin-top:auto;padding-top:20px}
.sidebar-status{display:flex;align-items:center;gap:8px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:10px 14px;font-size:13px;color:var(--text-muted)}
.status-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 8px rgba(34,197,94,.6);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.mobile-topbar{display:none;position:fixed;top:0;left:0;right:0;height:60px;background:var(--bg-darker);border-bottom:1px solid var(--border-color);z-index:130;align-items:center;padding:0 16px;gap:12px}
.mobile-topbar .menu-trigger{width:40px;height:40px;border-radius:10px;border:1px solid var(--border-color);background:var(--bg-card);color:var(--text-light);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.mobile-topbar .menu-trigger:hover{background:var(--bg-card-hover)}
.mobile-topbar .mobile-brand{font-weight:700;font-size:15px;color:var(--text-light);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.main-content{margin-left:var(--sidebar-w);flex:1;min-width:0;transition:var(--transition)}
.off-canvas{background:var(--bg-darker)!important;border-right:1px solid var(--border-color)}
.off-canvas .sidebar-inner{padding:20px 16px;display:flex;flex-direction:column;height:100%}
.off-canvas .sidebar-inner .mobile-logo{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--border-color);margin-bottom:14px}
.off-canvas .sidebar-inner .mobile-logo .brand-name{font-size:15px}

.hero{position:relative;background:linear-gradient(to right,rgba(6,9,19,.92) 0%,rgba(6,9,19,.72) 50%,rgba(6,9,19,.55) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:100px 0 90px;min-height:520px;display:flex;align-items:center}
.hero .container{position:relative;z-index:2}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,255,.12);border:1px solid rgba(0,229,255,.3);color:var(--primary);font-size:13px;font-weight:600;padding:6px 16px;border-radius:40px;margin-bottom:20px;letter-spacing:1px}
.hero-tag i{font-size:11px}
.hero h1{font-size:44px;font-weight:800;line-height:1.2;letter-spacing:1px;margin-bottom:20px;max-width:720px}
.hero h1 span{color:var(--primary);background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:17px;color:#b6c0d4;max-width:620px;margin-bottom:32px;line-height:1.8}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:40px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:var(--transition);line-height:1.4}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#04121a;box-shadow:var(--shadow-btn)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(0,229,255,.35)}
.btn-outline{border-color:rgba(255,255,255,.3);color:var(--text-light);background:rgba(255,255,255,.06)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:rgba(0,229,255,.08);transform:translateY(-2px)}
.hero-stats{display:flex;gap:36px;margin-top:48px;flex-wrap:wrap}
.hero-stat .num{font-size:28px;font-weight:800;color:var(--text-light)}
.hero-stat .num em{font-style:normal;color:var(--primary)}
.hero-stat .label{font-size:13px;color:var(--text-muted);margin-top:2px}

.section{padding:80px 0}
.section-alt{background:var(--bg-darker)}
.section-header{max-width:640px;margin-bottom:44px}
.section-header.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);background:rgba(0,229,255,.08);border:1px solid rgba(0,229,255,.15);padding:5px 14px;border-radius:40px;font-weight:600;margin-bottom:14px;letter-spacing:1px}
.section-header h2{font-size:30px;font-weight:800;line-height:1.3;margin-bottom:12px;letter-spacing:.5px}
.section-header p{color:var(--text-muted);font-size:15.5px;line-height:1.75}

.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature-media{border-radius:var(--radius-xl);overflow:hidden;position:relative;box-shadow:var(--shadow-card)}
.feature-media img{width:100%;height:100%;object-fit:cover;min-height:360px}
.feature-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(6,9,19,.7));pointer-events:none}
.feature-content h3{font-size:26px;font-weight:700;margin-bottom:18px}
.feature-content p{color:var(--text-muted);margin-bottom:20px;font-size:15px;line-height:1.8}
.feature-list{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.feature-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 16px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:var(--transition)}
.feature-list li:hover{border-color:rgba(0,229,255,.25);background:var(--bg-card-hover);transform:translateY(-2px)}
.feature-list li i{color:var(--primary);margin-top:4px;font-size:15px}
.feature-list li div span{display:block;font-weight:600;font-size:14.5px;color:var(--text-light)}
.feature-list li div small{color:var(--text-muted);font-size:13px}

.cats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);display:flex;flex-direction:column}
.cat-card:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.3);box-shadow:0 12px 36px rgba(0,0,0,.4)}
.cat-card .card-img{position:relative;height:170px;overflow:hidden}
.cat-card .card-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.cat-card:hover .card-img img{transform:scale(1.06)}
.cat-card .card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(6,9,19,.85))}
.cat-card .card-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.cat-card .cat-badge{position:absolute;left:14px;top:14px;z-index:2;background:rgba(0,229,255,.2);border:1px solid rgba(0,229,255,.4);color:var(--primary);font-size:12px;font-weight:600;padding:4px 12px;border-radius:30px;backdrop-filter:blur(4px)}
.cat-card .card-body h3{font-size:18px;font-weight:700;margin-bottom:8px}
.cat-card .card-body p{color:var(--text-muted);font-size:14px;line-height:1.7;flex:1}
.cat-card .card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;color:var(--primary);font-size:14px;font-weight:600}
.cat-card .card-link i{transition:var(--transition);font-size:12px}
.cat-card .card-link:hover i{transform:translateX(4px)}

.news-section{background:var(--bg-darker)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:22px 20px;transition:var(--transition);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-5px);border-color:rgba(0,229,255,.25);box-shadow:var(--shadow-glow)}
.news-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.badge{display:inline-block;padding:4px 12px;border-radius:30px;font-size:12px;font-weight:600}
.badge-primary{background:rgba(0,229,255,.12);color:var(--primary);border:1px solid rgba(0,229,255,.2)}
.badge-accent{background:rgba(168,85,247,.12);color:#c084fc;border:1px solid rgba(168,85,247,.25)}
.badge-warn{background:rgba(255,184,0,.1);color:#fbbf24;border:1px solid rgba(255,184,0,.2)}
.news-date{font-size:12px;color:var(--text-faint);display:flex;align-items:center;gap:6px}
.news-card h3{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:10px}
.news-card h3 a{color:var(--text-light)}
.news-card h3 a:hover{color:var(--primary)}
.news-card p{color:var(--text-muted);font-size:13.5px;line-height:1.7;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.read-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13px;font-weight:600;color:var(--primary)}
.read-link i{transition:var(--transition);font-size:11px}
.read-link:hover i{transform:translateX(4px)}
.empty-tip{grid-column:1/-1;text-align:center;padding:60px 20px;background:var(--bg-card);border:1px dashed var(--border-light);border-radius:var(--radius-lg)}
.empty-tip i{font-size:32px;color:var(--text-faint);margin-bottom:12px}
.empty-tip p{color:var(--text-muted);font-size:15px}

.stats-section{position:relative;background:linear-gradient(135deg,#0b1020,#111827);padding:80px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:12px}
.stat-block{background:rgba(255,255,255,.04);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;transition:var(--transition)}
.stat-block:hover{border-color:rgba(0,229,255,.3);transform:translateY(-4px);box-shadow:var(--shadow-glow)}
.stat-block i{font-size:26px;color:var(--primary);margin-bottom:14px}
.stat-num{font-size:34px;font-weight:800;color:var(--text-light);line-height:1.2}
.stat-num em{font-style:normal;color:var(--primary)}
.stat-text{font-size:13.5px;color:var(--text-muted);margin-top:6px}

.steps-section{padding:80px 0}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step-item{text-align:center;padding:28px 20px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);position:relative;transition:var(--transition)}
.step-item:hover{transform:translateY(-4px);border-color:rgba(168,85,247,.3)}
.step-num{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--primary));color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;margin:0 auto 16px;box-shadow:0 4px 18px rgba(168,85,247,.3)}
.step-item h3{font-size:16px;font-weight:700;margin-bottom:8px}
.step-item p{font-size:13.5px;color:var(--text-muted);line-height:1.7}

.faq-section{background:var(--bg-darker)}
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--border-light)}
.faq-item summary{cursor:pointer;padding:18px 22px;font-size:15.5px;font-weight:600;color:var(--text-light);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;font-size:13px;color:var(--primary);transition:var(--transition);flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-a{padding:0 22px 20px;color:var(--text-muted);font-size:14.5px;line-height:1.75}

.cta-section{position:relative;background:linear-gradient(135deg,rgba(0,229,255,.15),rgba(168,85,247,.15)),var(--bg-darker);padding:80px 0}
.cta-box{position:relative;background:linear-gradient(135deg,#0d1322,#151c2e);border:1px solid rgba(0,229,255,.25);border-radius:var(--radius-xl);padding:48px 38px;text-align:center;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-60px;right:-60px;width:180px;height:180px;border-radius:50%;background:rgba(0,229,255,.12);filter:blur(60px)}
.cta-box::after{content:'';position:absolute;bottom:-60px;left:-60px;width:180px;height:180px;border-radius:50%;background:rgba(168,85,247,.12);filter:blur(60px)}
.cta-box h2{font-size:28px;font-weight:800;margin-bottom:14px}
.cta-box p{color:var(--text-muted);font-size:15px;max-width:540px;margin:0 auto 28px}
.cta-box .cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

.site-footer{background:var(--bg-darker);border-top:1px solid var(--border-color);padding:50px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-brand h3{font-size:18px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand p{color:var(--text-muted);font-size:14px;line-height:1.75;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-light);margin-bottom:16px;letter-spacing:1px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{color:var(--text-muted);font-size:14px}
.footer-col ul a:hover{color:var(--primary);padding-left:4px}
.footer-bottom{border-top:1px solid var(--border-color);padding-top:22px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:var(--text-faint)}
.footer-bottom .footer-links{display:flex;gap:24px}
.footer-bottom .footer-links a{font-size:13px;color:var(--text-faint)}
.footer-bottom .footer-links a:hover{color:var(--primary)}

@media (max-width:1024px){
  .cats-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:36px}
}
@media (max-width:768px){
  .app-sidebar{display:none}
  .mobile-topbar{display:flex}
  .main-content{margin-left:0}
  .section{padding:60px 0}
  .hero{padding:90px 0 70px;min-height:auto}
  .hero h1{font-size:30px}
  .hero-desc{font-size:15px}
  .hero-stats{gap:20px}
  .hero-stat .num{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero h1{font-size:26px}
  .hero-btns{flex-direction:column;width:100%}
  .btn{width:100%;justify-content:center}
  .cats-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
  .steps-grid{grid-template-columns:1fr;gap:16px}
  .section-header h2{font-size:24px}
  .cta-box{padding:36px 22px}
  .cta-box h2{font-size:22px}
  .hero-stats{flex-direction:column;gap:12px}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #00e5ff;
            --primary-dark: #00b8d4;
            --secondary: #7c3aed;
            --accent: #ff2d78;
            --bg-dark: #080d17;
            --bg-panel: #0f1923;
            --bg-card: #141d2e;
            --bg-card-hover: #1b2738;
            --text-primary: #e8edf5;
            --text-secondary: #94a3b8;
            --text-muted: #5b6b7f;
            --border: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(0, 229, 255, 0.35);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 40px rgba(0, 229, 255, 0.12);
            --space-1: 8px;
            --space-2: 16px;
            --space-3: 24px;
            --space-4: 40px;
            --space-5: 64px;
            --space-6: 96px;
            --sidebar-width: 260px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover,
        a:focus {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-weight: 700;
            line-height: 1.3;
        }
        p {
            margin: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ===== 场景通用 ===== */
        .section-padded {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 52px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary);
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid var(--border-glow);
            border-radius: 30px;
            padding: 6px 18px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            border-radius: 12px;
            padding: 14px 30px;
            cursor: pointer;
            transition: all 0.25s ease;
            border: 1px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #001010;
            box-shadow: 0 4px 18px rgba(0, 229, 255, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 26px rgba(0, 229, 255, 0.45);
            color: #001010;
        }
        .btn-primary:active {
            transform: translateY(-1px);
            box-shadow: 0 3px 12px rgba(0, 229, 255, 0.35);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
        }
        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }
        .btn-ghost:active {
            transform: translateY(-1px);
        }
        .btn-light {
            background: #ffffff;
            color: #0a0e17;
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-3px);
            color: #0a0e17;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        /* ===== 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            background: rgba(0, 229, 255, 0.08);
            color: var(--primary);
            border: 1px solid rgba(0, 229, 255, 0.2);
        }
        .badge-purple {
            background: rgba(124, 58, 237, 0.12);
            color: var(--secondary);
            border-color: rgba(124, 58, 237, 0.35);
        }
        .badge-hot {
            background: rgba(255, 45, 120, 0.12);
            color: var(--accent);
            border-color: rgba(255, 45, 120, 0.3);
        }

        /* ===== 左侧导航 App Shell ===== */
        .app-shell {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-panel);
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform 0.3s ease;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 28px 20px 18px;
            border-bottom: 1px solid var(--border);
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            min-width: 38px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #001010;
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.4);
        }
        .logo-text {
            font-size: 17px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .nav-menu {
            flex: 1;
            padding: 24px 0;
            overflow-y: auto;
        }
        .nav-label {
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-muted);
            padding: 8px 28px;
            text-transform: uppercase;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-left: 3px solid transparent;
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 17px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-link:hover i {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(0, 229, 255, 0.07);
            border-left-color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active i {
            color: var(--primary);
        }
        .nav-status {
            padding: 20px 28px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
            animation: pulseDot 2s infinite;
        }
        @keyframes pulseDot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        /* ===== 移动端顶部栏 ===== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border);
            z-index: 1100;
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
        }
        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 800;
            color: var(--text-primary);
        }
        .mobile-logo .brand-icon {
            width: 32px;
            height: 32px;
            min-width: 32px;
            font-size: 14px;
            border-radius: 10px;
        }
        .mobile-toggle {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            font-size: 18px;
            cursor: pointer;
            transition: all 0.2s;
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--primary);
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1050;
            backdrop-filter: blur(2px);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-overlay.active {
            display: block;
            opacity: 1;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 120px 0 100px;
            background: linear-gradient(180deg, rgba(8, 13, 23, 0.92), rgba(8, 13, 23, 0.78)),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.15), transparent 60%);
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-badges {
            display: flex;
            gap: 12px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .hero-title {
            font-size: 52px;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: 1px;
            margin-bottom: 20px;
            background: linear-gradient(90deg, #ffffff, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 18px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 34px;
            max-width: 660px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-meta {
            display: flex;
            gap: 28px;
            margin-top: 44px;
            flex-wrap: wrap;
        }
        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .hero-meta-item i {
            color: var(--primary);
            font-size: 16px;
        }

        /* ===== 快速入口卡片 ===== */
        .quick-entry {
            background: var(--bg-dark);
        }
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .entry-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .entry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .entry-card:hover {
            transform: translateY(-6px);
            background: var(--bg-card-hover);
            border-color: rgba(0, 229, 255, 0.25);
            box-shadow: var(--shadow-glow);
        }
        .entry-card:hover::before {
            opacity: 1;
        }
        .entry-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            background: rgba(0, 229, 255, 0.1);
            color: var(--primary);
            margin-bottom: 22px;
            border: 1px solid rgba(0, 229, 255, 0.15);
            transition: all 0.3s ease;
        }
        .entry-card:hover .entry-icon {
            background: var(--primary);
            color: #001010;
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
        }
        .entry-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .entry-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .entry-card .badge {
            margin-top: 4px;
        }
        .entry-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 6px;
            transition: gap 0.2s;
        }
        .entry-link:hover {
            gap: 10px;
        }

        /* ===== 接入流程 ===== */
        .process-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-item {
            text-align: center;
            padding: 40px 22px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            position: relative;
            transition: all 0.3s ease;
        }
        .process-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-glow);
        }
        .process-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #001010;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.3);
        }
        .process-item:nth-child(2) .process-num {
            background: linear-gradient(135deg, var(--secondary), #6d28d9);
            box-shadow: 0 0 18px rgba(124, 58, 237, 0.3);
        }
        .process-item:nth-child(3) .process-num {
            background: linear-gradient(135deg, var(--accent), #e11d64);
            box-shadow: 0 0 18px rgba(255, 45, 120, 0.3);
        }
        .process-item:nth-child(4) .process-num {
            background: linear-gradient(135deg, #f59e0b, #d97706);
            box-shadow: 0 0 18px rgba(245, 158, 11, 0.3);
        }
        .process-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .process-line {
            position: absolute;
            top: 60px;
            right: -24px;
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), transparent);
            opacity: 0.5;
        }
        .process-item:last-child .process-line {
            display: none;
        }

        /* ===== 安全指引 ===== */
        .safety-section {
            background: var(--bg-dark);
        }
        .safety-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .safety-content {
            padding: 40px 0;
        }
        .safety-content h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .safety-content p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .safety-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .safety-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.7;
        }
        .safety-list li i {
            color: var(--primary);
            font-size: 17px;
            margin-top: 4px;
            min-width: 20px;
        }
        .safety-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            transition: all 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-glow);
        }
        .stat-num {
            font-size: 40px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .stat-card:nth-child(2) .stat-num {
            color: var(--secondary);
        }
        .stat-card:nth-child(3) .stat-num {
            color: var(--accent);
        }
        .stat-card:nth-child(4) .stat-num {
            color: #f59e0b;
        }

        /* ===== 最新动态 ===== */
        .news-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 229, 255, 0.25);
        }
        .news-cover {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-cover img {
            transform: scale(1.05);
        }
        .news-cover::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(8, 13, 23, 0.7));
        }
        .news-tag {
            position: absolute;
            z-index: 2;
            top: 16px;
            left: 16px;
        }
        .news-body {
            padding: 24px 22px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .news-meta i {
            font-size: 12px;
        }
        .news-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 12px;
            transition: color 0.2s;
        }
        .news-card:hover .news-body h3 {
            color: var(--primary);
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-dark);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .faq-question i {
            font-size: 15px;
            color: var(--primary);
            transition: transform 0.3s ease;
            min-width: 18px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 16px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.15), transparent 60%);
            pointer-events: none;
        }
        .cta-inner {
            text-align: center;
            padding: 70px 30px;
            max-width: 700px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            font-size: 38px;
            font-weight: 900;
            margin-bottom: 16px;
        }
        .cta-inner p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .cta-actions {
            display: flex;
            gap: 18px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-panel);
            border-top: 1px solid var(--border);
            padding: 56px 0 0;
            margin-left: var(--sidebar-width);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
        }
        .footer-brand h3 {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer-brand p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 420px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text-primary);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 22px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 14px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            gap: 22px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-line {
                display: none;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .safety-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media screen and (max-width: 768px) {
            .mobile-topbar {
                display: flex;
            }
            .app-shell {
                transform: translateX(-100%);
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.6);
            }
            .app-shell.active {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .site-footer {
                margin-left: 0;
            }
            .section-padded {
                padding: 56px 0;
            }
            .section-title {
                font-size: 30px;
            }
            .hero {
                padding: 80px 0 60px;
            }
            .hero-title {
                font-size: 38px;
            }
            .hero-desc {
                font-size: 16px;
            }
            .entry-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .safety-stats {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .container {
                padding: 0 20px;
            }
        }

        @media screen and (max-width: 520px) {
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-badges,
            .hero-meta {
                flex-direction: column;
                gap: 12px;
            }
            .safety-stats {
                grid-template-columns: 1fr;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 26px;
            }
            .news-cover {
                height: 160px;
            }
        }

        /* ===== Foundation 定制覆盖 ===== */
        .grid-container {
            max-width: 1280px;
        }
        .cell {
            padding: 0;
        }
        .grid-x {
            margin: 0;
        }
        button,
        .button {
            box-shadow: none;
        }
        .faq-item .faq-answer p {
            margin: 0;
        }

/* roulang page: article */
/* ==========================================================
   设计变量
   ========================================================== */
:root {
  --bg-dark: #0b0e1a;
  --bg-panel: #12162a;
  --bg-card: #191e35;
  --bg-hover: #212748;
  --primary: #00e5a0;
  --primary-glow: rgba(0, 229, 160, 0.3);
  --secondary: #7b61ff;
  --secondary-glow: rgba(123, 97, 255, 0.25);
  --accent: #ffc145;
  --text-main: #eef1f9;
  --text-weak: #a3a9c0;
  --text-mute: #6d748d;
  --border: rgba(255, 255, 255, 0.08);
  --radius-lg: 20px;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(0, 229, 160, 0.14);
  --space: 56px;
  --sidebar-w: 264px;
}

/* ==========================================================
   基础重置
   ========================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: inherit;
  transition: color 0.2s ease;
}
a:hover {
  text-decoration: none;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}
ul,
ol {
  margin: 0;
  padding: 0;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}
body.no-scroll {
  overflow: hidden;
}

/* ==========================================================
   App Shell 侧边栏布局
   ========================================================== */
.app-shell {
  display: flex;
  min-height: 100vh;
}
.site-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: 22px 16px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.site-sidebar::-webkit-scrollbar {
  width: 4px;
}
.site-sidebar::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
.site-main {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 侧边栏 Logo */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 10px 20px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}
.sidebar-logo:hover {
  text-decoration: none;
}
.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  box-shadow: 0 4px 16px var(--primary-glow);
  flex-shrink: 0;
}
.brand-text {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  letter-spacing: 0.4px;
}

/* 侧边栏导航 */
.nav-section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.6px;
  color: var(--text-mute);
  padding: 0 12px 10px;
  font-weight: 600;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  margin: 2px 0;
  border-radius: var(--radius-sm);
  color: var(--text-weak);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all 0.22s ease;
}
.nav-item i {
  width: 18px;
  text-align: center;
  font-size: 15px;
  flex-shrink: 0;
}
.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-main);
  text-decoration: none;
}
.nav-item.active {
  background: rgba(0, 229, 160, 0.1);
  color: var(--primary);
  border-color: rgba(0, 229, 160, 0.25);
  box-shadow: 0 0 18px rgba(0, 229, 160, 0.07);
}
.sidebar-footer {
  margin-top: auto;
  padding: 14px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-weak);
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--primary-glow);
  animation: pulse 2s infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

/* ==========================================================
   移动端顶栏
   ========================================================== */
.mobile-topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(18, 22, 42, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  align-items: center;
  justify-content: space-between;
}
.menu-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-main);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.menu-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.mobile-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
}
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.sidebar-overlay.visible {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================
   主内容容器
   ========================================================== */
.page-content {
  flex: 1;
  padding: 28px 36px 16px;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
}

/* ==========================================================
   页面横幅
   ========================================================== */
.page-banner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  min-height: 190px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border: 1px solid var(--border);
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11, 14, 26, 0.93) 18%, rgba(11, 14, 26, 0.68) 55%, rgba(11, 14, 26, 0.35));
}
.page-banner::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0.85;
}
.page-banner-content {
  position: relative;
  z-index: 1;
  padding: 34px 38px;
  max-width: 720px;
}
.page-banner-content .badge {
  margin-bottom: 12px;
}
.banner-title {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.35;
  letter-spacing: 0.5px;
}
.page-banner-content p {
  color: var(--text-weak);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ==========================================================
   通用徽章
   ========================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
}
.badge-accent {
  background: rgba(0, 229, 160, 0.12);
  color: var(--primary);
  border: 1px solid rgba(0, 229, 160, 0.3);
}

/* ==========================================================
   面包屑
   ========================================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 22px;
  padding: 10px 16px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.breadcrumb a {
  color: var(--text-weak);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: var(--text-mute);
  font-size: 10px;
}
.breadcrumb .current {
  color: var(--text-main);
  font-weight: 600;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==========================================================
   文章主体
   ========================================================== */
.article-section {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow);
}
.article-header {
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}
.meta-item {
  font-size: 13px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 6px;
}
.meta-item i {
  color: var(--text-mute);
}
.article-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-main);
  margin: 14px 0 10px;
  letter-spacing: 0.3px;
}
.article-desc {
  font-size: 15.5px;
  color: var(--text-weak);
  line-height: 1.75;
  max-width: 780px;
}

/* 文章封面 */
.article-cover {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
}
.article-cover img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  display: block;
}
.article-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11, 14, 26, 0.55));
  pointer-events: none;
}

/* 文章正文 */
.article-body {
  font-size: 15.5px;
  color: var(--text-main);
  line-height: 1.9;
}
.article-body p {
  margin-bottom: 18px;
}
.article-body h3 {
  font-size: 21px;
  font-weight: 700;
  margin: 34px 0 14px;
  color: var(--text-main);
  padding-left: 14px;
  border-left: 3px solid var(--primary);
  line-height: 1.4;
}
.article-body h4 {
  font-size: 18px;
  font-weight: 700;
  margin: 26px 0 12px;
  color: var(--text-main);
}
.article-body ul,
.article-body ol {
  margin: 0 0 18px 24px;
  padding: 0;
}
.article-body li {
  margin-bottom: 8px;
  color: var(--text-weak);
}
.article-body li strong {
  color: var(--text-main);
}
.article-body blockquote {
  border-left: 3px solid var(--secondary);
  background: var(--bg-card);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 22px 0;
  color: var(--text-weak);
  font-style: italic;
}
.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover {
  color: var(--primary);
  text-decoration: none;
}
.article-body img {
  border-radius: var(--radius);
  margin: 20px 0;
}
.article-body .highlight {
  color: var(--primary);
  font-weight: 700;
}

/* 标签 */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 12.5px;
  color: var(--text-weak);
  text-decoration: none;
  transition: all 0.2s ease;
}
.tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  text-decoration: none;
}

/* 分享行 */
.share-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  padding: 16px 20px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  flex-wrap: wrap;
}
.share-label {
  font-size: 14px;
  color: var(--text-main);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.share-btns {
  display: flex;
  gap: 10px;
}
.share-btn {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  color: var(--text-weak);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}
.share-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 0 14px rgba(0, 229, 160, 0.15);
  text-decoration: none;
}

/* ==========================================================
   通用板块标题
   ========================================================== */
.section-title-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.section-title-wrap h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  position: relative;
  padding-left: 16px;
  line-height: 1.4;
}
.section-title-wrap h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 2px;
  box-shadow: 0 0 10px var(--primary-glow);
}
.view-all {
  color: var(--text-weak);
  font-size: 13px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}
.view-all:hover {
  color: var(--primary);
  text-decoration: none;
}

/* ==========================================================
   相关阅读
   ========================================================== */
.related-section {
  margin-top: 40px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 160, 0.3);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
}
.related-card-img {
  height: 150px;
  overflow: hidden;
  position: relative;
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.related-card:hover .related-card-img img {
  transform: scale(1.06);
}
.related-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11, 14, 26, 0.5));
}
.related-card-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-card-body h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.55;
  margin-bottom: 8px;
}
.related-card-body p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 0;
}
.related-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.related-card-meta .badge {
  font-size: 11px;
  padding: 3px 10px;
}
.related-card-meta > span:last-child {
  font-size: 12px;
  color: var(--text-mute);
}

/* ==========================================================
   CTA 区块
   ========================================================== */
.cta-section {
  margin-top: 44px;
}
.cta-banner {
  position: relative;
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border: 1px solid rgba(0, 229, 160, 0.25);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11, 14, 26, 0.94), rgba(18, 22, 42, 0.78));
}
.cta-banner::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0.9;
}
.cta-info {
  position: relative;
  z-index: 1;
}
.cta-info h3 {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
  line-height: 1.4;
}
.cta-info p {
  color: var(--text-weak);
  font-size: 14.5px;
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 0;
}
.cta-actions {
  display: flex;
  gap: 12px;
  position: relative;
  z-index: 1;
}

/* ==========================================================
   按钮
   ========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  line-height: 1.4;
}
.btn-primary {
  background: var(--primary);
  color: var(--bg-dark);
  box-shadow: 0 4px 18px var(--primary-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 229, 160, 0.4);
  color: var(--bg-dark);
  text-decoration: none;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px var(--primary-glow);
}
.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  text-decoration: none;
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}

/* ==========================================================
   FAQ 区块
   ========================================================== */
.faq-section {
  margin-top: 44px;
}
.faq-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.faq-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  transition: border-color 0.2s ease;
}
.faq-card:hover {
  border-color: rgba(0, 229, 160, 0.25);
}
.faq-card h4 {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.faq-card h4 i {
  color: var(--primary);
  font-size: 13px;
}
.faq-card p {
  font-size: 13.5px;
  color: var(--text-weak);
  line-height: 1.65;
  margin-bottom: 0;
}

/* ==========================================================
   内容未找到
   ========================================================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 72px 24px;
  text-align: center;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.empty-icon {
  font-size: 48px;
  color: var(--text-mute);
  margin-bottom: 16px;
}
.empty-state h2 {
  font-size: 24px;
  margin-bottom: 10px;
  color: var(--text-main);
}
.empty-state p {
  color: var(--text-weak);
  margin-bottom: 22px;
  font-size: 14.5px;
}

/* ==========================================================
   页脚
   ========================================================== */
.site-footer {
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  padding: 48px 32px 24px;
  margin-top: 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.footer-brand h3 {
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  margin-bottom: 14px;
}
.footer-brand p {
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
  max-width: 380px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-main);
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  color: var(--text-weak);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
}
.footer-bottom p {
  margin: 0;
  color: var(--text-mute);
  font-size: 13px;
}
.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--text-mute);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--primary);
}

/* ==========================================================
   响应式断点
   ========================================================== */
@media (max-width: 1024px) {
  :root {
    --sidebar-w: 220px;
  }
  .page-content {
    padding: 24px 20px 12px;
  }
  .article-section {
    padding: 30px;
  }
  .article-title {
    font-size: 27px;
  }
  .related-grid {
    gap: 16px;
  }
  .related-card-body h3 {
    font-size: 14px;
  }
  .site-footer {
    padding: 40px 20px 20px;
  }
  .footer-grid {
    gap: 32px;
  }
  .page-banner-content {
    padding: 28px 30px;
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-w: 264px;
  }
  .site-sidebar {
    transform: translateX(-105%);
    transition: transform 0.32s ease;
    box-shadow: 8px 0 36px rgba(0, 0, 0, 0.45);
  }
  .site-sidebar.open {
    transform: translateX(0);
  }
  .site-main {
    margin-left: 0;
  }
  .mobile-topbar {
    display: flex;
  }
  .sidebar-overlay {
    display: block;
  }
  .page-content {
    padding: 20px 16px 8px;
  }
  .page-banner {
    min-height: 160px;
  }
  .banner-title {
    font-size: 22px;
  }
  .page-banner-content {
    padding: 26px 24px;
  }
  .article-section {
    padding: 24px;
  }
  .article-title {
    font-size: 23px;
  }
  .article-meta {
    gap: 10px;
  }
  .related-grid {
    grid-template-columns: 1fr 1fr;
  }
  .faq-list {
    grid-template-columns: 1fr;
  }
  .cta-banner {
    padding: 28px 24px;
    flex-direction: column;
    text-align: center;
  }
  .cta-actions {
    justify-content: center;
    flex-wrap: wrap;
  }
  .cta-info p {
    margin-left: auto;
    margin-right: auto;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    text-align: center;
  }
  .footer-brand p {
    margin-left: auto;
    margin-right: auto;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .page-content {
    padding: 16px 12px 0;
  }
  .page-banner {
    min-height: 140px;
    border-radius: var(--radius);
  }
  .page-banner-content {
    padding: 20px 18px;
  }
  .banner-title {
    font-size: 20px;
  }
  .page-banner-content p {
    font-size: 13px;
  }
  .article-section {
    padding: 20px 16px;
    border-radius: var(--radius);
  }
  .article-title {
    font-size: 20px;
  }
  .article-desc {
    font-size: 14px;
  }
  .article-meta {
    gap: 8px;
  }
  .meta-item {
    font-size: 12px;
  }
  .breadcrumb {
    font-size: 12px;
    padding: 8px 12px;
    overflow-x: auto;
    white-space: nowrap;
    flex-wrap: nowrap;
  }
  .breadcrumb .current {
    max-width: 160px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .related-card-img {
    height: 140px;
  }
  .share-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .share-btns {
    width: 100%;
  }
  .share-btn {
    flex: 1;
  }
  .cta-banner {
    padding: 24px 18px;
    border-radius: var(--radius);
  }
  .cta-info h3 {
    font-size: 20px;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .section-title-wrap h2 {
    font-size: 19px;
  }
  .faq-list {
    gap: 12px;
  }
  .faq-card {
    padding: 14px 16px;
  }
  .site-footer {
    padding: 36px 16px 18px;
  }
  .footer-bottom {
    gap: 8px;
  }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #0e1420;
  --bg-card: #131b2c;
  --bg-card-hover: #182238;
  --bg-deep: #070b12;
  --accent-primary: #00e0ff;
  --accent-secondary: #00ff88;
  --accent-warm: #ffb347;
  --accent-danger: #ff4d6a;
  --text-primary: #e8edf5;
  --text-secondary: #9aa7b8;
  --text-muted: #5d6b7e;
  --border-color: #1e2a3a;
  --border-glow: rgba(0, 224, 255, 0.25);
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 28px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(0, 224, 255, 0.12);
  --shadow-glow-green: 0 0 24px rgba(0, 255, 136, 0.1);
  --transition-fast: 0.18s ease;
  --transition-normal: 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  --sidebar-width: 262px;
  --topbar-height: 60px;
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'DIN Alternate', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

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

a:hover {
  color: #66ecff;
}

a:focus,
button:focus,
input:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

input {
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

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

i.fa, i.fas, i.far, i.fab {
  line-height: 1;
}

/* ===== 容器 ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== 移动端顶部栏 ===== */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 999;
  align-items: center;
  padding: 0 20px;
}

.mobile-topbar-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.menu-trigger {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 20px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
  transition: background var(--transition-fast);
}

.menu-trigger:hover {
  background: rgba(0, 224, 255, 0.12);
}

.mobile-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  backdrop-filter: blur(4px);
}

.menu-overlay.active {
  display: block;
}

/* ===== 侧边栏 ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  transition: transform var(--transition-normal);
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 24px 16px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 224, 255, 0.2), rgba(0, 255, 136, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--accent-primary);
  border: 1px solid var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.brand-text {
  font-weight: 700;
  font-size: 17px;
  color: var(--text-primary);
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border-radius: 14px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item i {
  font-size: 18px;
  width: 22px;
  text-align: center;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-item:hover {
  background: rgba(0, 224, 255, 0.06);
  color: var(--text-primary);
}

.nav-item:hover i {
  color: var(--accent-primary);
}

.nav-item.active {
  background: rgba(0, 224, 255, 0.1);
  color: var(--accent-primary);
  border: 1px solid var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.nav-item.active i {
  color: var(--accent-primary);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 22px;
  border-radius: 0 3px 3px 0;
  background: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-primary);
}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(0, 255, 136, 0.05);
  border: 1px solid rgba(0, 255, 136, 0.15);
  margin-top: 20px;
}

.sidebar-status .status-dot {
  width: 8px;
  height: 8px;
  min-width: 8px;
  border-radius: 50%;
  background: var(--accent-secondary);
  box-shadow: 0 0 8px var(--accent-secondary);
  animation: pulse-dot 2s ease-in-out infinite;
}

.sidebar-status span {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

/* ===== 内容区 ===== */
.content-wrapper {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 0;
}

.page-main {
  flex: 1;
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  min-height: 480px;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  padding: 80px 0;
  isolation: isolate;
  border-bottom: 1px solid var(--border-color);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 11, 18, 0.95) 0%, rgba(7, 11, 18, 0.75) 50%, rgba(7, 11, 18, 0.4) 100%);
  z-index: -1;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(10, 14, 23, 0.9) 100%);
  z-index: -1;
}

.hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(0, 224, 255, 0.1);
  border: 1px solid var(--border-glow);
  color: var(--accent-primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-tag i {
  font-size: 12px;
}

.hero-title {
  font-size: clamp(32px, 5vw, 54px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -1px;
}

.hero-title .gradient-text {
  background: linear-gradient(120deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, #00b3d9 100%);
  color: #06121a;
  box-shadow: 0 4px 24px rgba(0, 224, 255, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #33e6ff 0%, #00cbf0 100%);
  color: #06121a;
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 224, 255, 0.35);
}

.btn-outline {
  border-color: var(--border-glow);
  color: var(--accent-primary);
  background: rgba(0, 224, 255, 0.04);
}

.btn-outline:hover {
  background: rgba(0, 224, 255, 0.12);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ===== 通用板块 ===== */
.section {
  padding: 88px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.section-title {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 580px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(0, 224, 255, 0.06);
  border: 1px solid rgba(0, 224, 255, 0.16);
  color: var(--accent-primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.section-divider {
  width: 56px;
  height: 3px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  margin-top: 16px;
}

/* ===== 统计卡 ===== */
.stats-section {
  padding: 68px 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 224, 255, 0.2);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  background: rgba(0, 224, 255, 0.1);
  color: var(--accent-primary);
  margin-bottom: 16px;
}

.stat-card .stat-number {
  font-size: 34px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.5px;
  font-family: var(--font-display);
}

.stat-card .stat-number em {
  font-style: normal;
  font-size: 20px;
  color: var(--accent-primary);
  margin-left: 3px;
}

.stat-card .stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* ===== 赛事卡片 ===== */
.matches-section {
  background: var(--bg-primary);
}

.matches-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.match-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--transition-normal);
  position: relative;
}

.match-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 224, 255, 0.25);
}

.match-cover {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.match-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.match-card:hover .match-cover img {
  transform: scale(1.05);
}

.match-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(13, 18, 30, 0.8) 100%);
}

.match-status {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.match-status.live {
  background: rgba(255, 77, 106, 0.9);
  color: #fff;
  box-shadow: 0 0 20px rgba(255, 77, 106, 0.4);
}

.match-status.live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: blink 1s infinite;
}

.match-status.upcoming {
  background: rgba(0, 224, 255, 0.15);
  color: var(--accent-primary);
  border: 1px solid var(--border-glow);
}

.match-status.finished {
  background: rgba(255, 179, 71, 0.15);
  color: var(--accent-warm);
  border: 1px solid rgba(255, 179, 71, 0.3);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.match-body {
  padding: 22px;
}

.match-league {
  font-size: 13px;
  color: var(--accent-primary);
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.match-title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.match-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.match-meta span {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.match-meta span i {
  color: var(--text-secondary);
  font-size: 13px;
}

.match-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  background: rgba(0, 224, 255, 0.08);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.tag-hot {
  background: rgba(255, 179, 71, 0.1);
  color: var(--accent-warm);
  border-color: rgba(255, 179, 71, 0.2);
}

/* ===== 数据面板 ===== */
.panel-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.panel-card {
  background: var(--bg-deep);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0, 224, 255, 0.1);
  box-shadow: var(--shadow-md);
  padding: 36px;
  position: relative;
  overflow: hidden;
}

.panel-card::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 224, 255, 0.08), transparent 60%);
  border-radius: 50%;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.panel-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.panel-title i {
  color: var(--accent-primary);
  font-size: 24px;
}

.panel-badge {
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.2);
  color: var(--accent-secondary);
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
}

.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 13px 18px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: all var(--transition-fast);
}

.ranking-item:hover {
  background: rgba(0, 224, 255, 0.04);
  border-color: rgba(0, 224, 255, 0.12);
  transform: translateX(4px);
}

.ranking-rank {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-muted);
  width: 30px;
  text-align: center;
  font-family: var(--font-display);
}

.ranking-rank.r1 { color: #ffd700; }
.ranking-rank.r2 { color: #c0c0c0; }
.ranking-rank.r3 { color: #cd7f32; }

.ranking-info {
  flex: 1;
}

.ranking-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.ranking-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.ranking-stat {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: var(--font-display);
}

.live-feed {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feed-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border-left: 3px solid var(--accent-primary);
}

.feed-item .feed-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
  margin-top: 6px;
  flex-shrink: 0;
}

.feed-item .feed-content {
  flex: 1;
}

.feed-item .feed-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.feed-item .feed-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== 资讯列表 ===== */
.news-section {
  background: var(--bg-primary);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-card {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.news-card:hover {
  border-color: rgba(0, 224, 255, 0.2);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.news-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  background: rgba(0, 224, 255, 0.08);
  color: var(--accent-primary);
}

.news-content {
  flex: 1;
}

.news-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 6px;
}

.news-date {
  font-size: 12px;
  color: var(--text-muted);
}

.news-cat {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(0, 224, 255, 0.08);
  color: var(--accent-primary);
}

.news-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.news-title:hover {
  color: var(--accent-primary);
}

.news-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.faq-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 28px;
  transition: all var(--transition-fast);
}

.faq-card:hover {
  border-color: rgba(0, 224, 255, 0.15);
  background: var(--bg-card-hover);
}

.faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.faq-q i {
  color: var(--accent-primary);
  font-size: 17px;
  margin-top: 2px;
}

.faq-a {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  padding-left: 28px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  isolation: isolate;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 11, 18, 0.94), rgba(10, 14, 23, 0.85));
  z-index: -1;
}

.cta-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

.cta-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  margin-bottom: 18px;
}

.cta-desc {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

.cta-buttons {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand h3 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.footer-brand h3 .brand-icon {
  width: 34px;
  height: 34px;
  min-width: 34px;
  font-size: 14px;
  border-radius: 10px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 380px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(0, 224, 255, 0.15);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0 26px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .mobile-topbar {
    display: flex;
  }

  .sidebar {
    transform: translateX(-100%);
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.4);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .content-wrapper {
    margin-left: 0;
    padding-top: var(--topbar-height);
  }

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

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

  .panel-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .news-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container,
  .hero-inner {
    padding: 0 20px;
  }

  .section {
    padding: 64px 0;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .stat-card {
    padding: 20px 16px;
  }

  .stat-card .stat-number {
    font-size: 26px;
  }

  .stat-card .stat-icon {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .matches-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .match-cover {
    height: 160px;
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions {
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .news-card {
    flex-direction: column;
  }

  .page-hero {
    min-height: 400px;
    padding: 60px 0;
  }

  .panel-card {
    padding: 20px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
  }

  .stat-card .stat-icon {
    margin-bottom: 0;
  }

  .stat-card .stat-number {
    font-size: 24px;
  }

  .stat-card .stat-label {
    margin-top: 2px;
  }

  .mobile-logo {
    font-size: 14px;
  }
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #00d4ff;
            --primary-dark: #0096c4;
            --primary-glow: rgba(0, 212, 255, 0.35);
            --accent: #ff2d75;
            --accent-glow: rgba(255, 45, 117, 0.35);
            --green: #00ff9d;
            --green-glow: rgba(0, 255, 157, 0.25);
            --bg-deep: #080c16;
            --bg-body: #0b101f;
            --bg-card: #111827;
            --bg-card-2: #151e33;
            --bg-elevated: #1a2440;
            --text-main: #eaf0ff;
            --text-muted: #8a94b5;
            --text-dim: #5c6a8a;
            --border: rgba(255, 255, 255, 0.07);
            --border-hover: rgba(0, 212, 255, 0.35);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-card: 0 6px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 44px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(0, 212, 255, 0.12);
            --shadow-glow: 0 0 24px var(--primary-glow);
            --sidebar-w: 264px;
            --header-h-mobile: 60px;
            --space-section: 92px;
            --space-section-sm: 60px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
            border: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ::selection {
            background: rgba(0, 212, 255, 0.3);
            color: #fff;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 700;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* ===== 左侧 Sidebar 导航 ===== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-w);
            height: 100vh;
            background: linear-gradient(180deg, #0d1322 0%, #0a0f1c 100%);
            border-right: 1px solid var(--border);
            z-index: 200;
            display: flex;
            flex-direction: column;
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .sidebar::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 1px;
            height: 100%;
            background: linear-gradient(180deg, rgba(0, 212, 255, 0.15), transparent 60%);
            pointer-events: none;
        }
        .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 20px 20px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 10px 26px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 26px;
        }
        .brand-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            font-size: 18px;
            color: #fff;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
        }
        .logo-text {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-main);
            letter-spacing: 0.5px;
        }
        .logo-text span {
            color: var(--primary);
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.25s ease;
            position: relative;
            border: 1px solid transparent;
        }
        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }
        .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(255, 255, 255, 0.06);
            transform: translateX(2px);
        }
        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 212, 255, 0.04));
            border-color: rgba(0, 212, 255, 0.2);
            font-weight: 600;
        }
        .nav-link.active::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 22px;
            border-radius: 0 4px 4px 0;
            background: var(--primary);
            box-shadow: 0 0 12px var(--primary-glow);
        }
        .nav-link.active i {
            color: var(--primary);
        }
        .sidebar-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 8px;
            border-radius: 20px;
            font-size: 10px;
            font-weight: 600;
            background: var(--accent);
            color: #fff;
            margin-left: auto;
            letter-spacing: 0.3px;
        }
        .sidebar-footer {
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .sidebar-status {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            background: rgba(0, 255, 157, 0.06);
            border-radius: 12px;
            border: 1px solid rgba(0, 255, 157, 0.12);
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--green);
            box-shadow: 0 0 8px var(--green-glow);
            animation: pulse 1.8s infinite;
        }
        .sidebar-status span {
            font-size: 12px;
            color: var(--text-muted);
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }

        /* ===== 移动端顶部栏 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-h-mobile);
            background: rgba(11, 16, 31, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            z-index: 300;
            align-items: center;
            padding: 0 16px;
            gap: 12px;
        }
        .menu-toggle {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            color: var(--text-main);
            font-size: 18px;
            transition: background 0.2s;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .mobile-logo {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            overflow: hidden;
        }
        .mobile-logo .brand-icon {
            width: 30px;
            height: 30px;
            font-size: 12px;
            border-radius: 8px;
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 199;
            backdrop-filter: blur(4px);
            opacity: 0;
            transition: opacity 0.3s;
            pointer-events: none;
        }
        .sidebar-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-w);
            min-width: 0;
            display: flex;
            flex-direction: column;
        }
        .page-main {
            flex: 1;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 100px 0 90px;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(8, 12, 22, 0.92) 0%,
                    rgba(8, 12, 22, 0.78) 45%,
                    rgba(8, 12, 22, 0.55) 100%);
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(180deg, transparent, var(--bg-body));
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 30px;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.25);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 22px;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            font-size: 14px;
        }
        .hero-content h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero-content h1 .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 1px solid transparent;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #00a8d4);
            color: #fff;
            box-shadow: 0 4px 24px rgba(0, 212, 255, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0, 212, 255, 0.4);
            color: #fff;
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(255, 255, 255, 0.15);
            color: var(--text-main);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
            color: #fff;
        }
        .hero-stats {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 48px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-alt {
            background: #0d1428;
        }
        .section-head {
            margin-bottom: 48px;
            max-width: 640px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .section-kicker::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-head.center .section-kicker::after {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== 亮点介绍 ===== */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 54px;
            align-items: center;
        }
        .about-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .about-media img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .about-media:hover img {
            transform: scale(1.03);
        }
        .about-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 16, 31, 0.5));
        }
        .about-content .section-head {
            margin-bottom: 28px;
        }
        .about-feature-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 8px;
        }
        .about-feature {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        .about-feature:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .about-feature-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
        }
        .about-feature-icon.green {
            background: linear-gradient(135deg, var(--green), #00c17e);
        }
        .about-feature-icon.accent {
            background: linear-gradient(135deg, var(--accent), #c9184a);
        }
        .about-feature h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .about-feature p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 功能卡片 ===== */
        .feature-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            position: relative;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.35s ease;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }
        .feature-card-media {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .feature-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-card:hover .feature-card-media img {
            transform: scale(1.05);
        }
        .feature-card-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 16, 31, 0.1), rgba(11, 16, 31, 0.65));
        }
        .feature-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(0, 212, 255, 0.85);
            color: #fff;
            backdrop-filter: blur(4px);
        }
        .feature-card-tag.small {
            font-size: 11px;
            padding: 3px 10px;
        }
        .feature-card-body {
            padding: 22px 20px 24px;
        }
        .feature-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .feature-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.25s ease;
        }
        .feature-card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ===== 热门话题 ===== */
        .topics-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .topic-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 22px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        .topic-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .topic-rank {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-dim);
            min-width: 36px;
            text-align: center;
            font-style: italic;
        }
        .topic-rank.hot {
            color: var(--primary);
        }
        .topic-main {
            flex: 1;
            min-width: 0;
        }
        .topic-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.5;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .topic-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .topic-meta i {
            font-size: 13px;
            margin-right: 3px;
        }
        .topic-tags {
            display: flex;
            gap: 8px;
            flex-shrink: 0;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
        }
        .badge.live {
            background: rgba(255, 45, 117, 0.1);
            border-color: rgba(255, 45, 117, 0.25);
            color: var(--accent);
        }
        .badge.hot {
            background: rgba(255, 138, 0, 0.1);
            border-color: rgba(255, 138, 0, 0.25);
            color: #ff8a00;
        }
        .badge.blue {
            background: rgba(0, 212, 255, 0.08);
            border-color: rgba(0, 212, 255, 0.2);
            color: var(--primary);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 40px 24px;
            background: linear-gradient(135deg, var(--bg-card-2), var(--bg-card));
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .stat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 0 0 6px 6px;
        }
        .stat-card:hover {
            border-color: rgba(0, 212, 255, 0.3);
            box-shadow: var(--shadow-hover);
        }
        .stat-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 22px;
            background: rgba(0, 212, 255, 0.1);
            color: var(--primary);
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.1;
            background: linear-gradient(135deg, #fff, #b0c0ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* ===== 活跃排行 ===== */
        .rank-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }
        .rank-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 22px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        .rank-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .rank-avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.2);
        }
        .rank-avatar.no1 {
            background: linear-gradient(135deg, #ffb700, #ff8a00);
            box-shadow: 0 0 16px rgba(255, 165, 0, 0.3);
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-name {
            font-size: 16px;
            font-weight: 700;
        }
        .rank-meta {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .rank-badge {
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(0, 255, 157, 0.1);
            border: 1px solid rgba(0, 255, 157, 0.2);
            color: var(--green);
            flex-shrink: 0;
        }
        .rank-score {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
            min-width: 56px;
            text-align: right;
        }
        .rank-card:nth-child(n+7) {
            display: none;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(0, 212, 255, 0.2);
        }
        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .faq-q:hover {
            color: var(--primary);
        }
        .faq-q i {
            color: var(--text-muted);
            transition: transform 0.3s ease;
            font-size: 14px;
        }
        .faq-item.is-open .faq-q i {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-a {
            display: none;
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.is-open .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            text-align: center;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 12, 22, 0.88), rgba(10, 15, 30, 0.82));
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 620px;
            margin: 0 auto;
        }
        .cta-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .cta-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080b14;
            border-top: 1px solid var(--border);
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .footer-col ul a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 22px 0;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--text-dim);
        }
        .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-dim);
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--primary);
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 72px;
            }
            .feature-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid {
                gap: 36px;
            }
            .hero-content h1 {
                font-size: 38px;
            }
        }
        @media (max-width: 900px) {
            :root {
                --space-section: 60px;
            }
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.3);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .sidebar-overlay.show {
                display: block;
            }
            .page-hero {
                padding: var(--header-h-mobile) 0 64px;
                padding-top: 90px;
            }
            .about-grid {
                grid-template-columns: 1fr;
            }
            .about-media img {
                height: 280px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .rank-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            :root {
                --space-section: 48px;
            }
            .container {
                padding: 0 16px;
            }
            .page-hero {
                padding-top: 84px;
                padding-bottom: 48px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 20px;
                flex-direction: column;
            }
            .section-title {
                font-size: 26px;
            }
            .section-desc {
                font-size: 15px;
            }
            .feature-cards {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .topic-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 18px;
            }
            .topic-tags {
                flex-wrap: wrap;
            }
            .topic-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-title {
                font-size: 28px;
            }
            .faq-q {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-a {
                padding: 0 18px 18px;
            }
        }