/* roulang page: index */
:root{
  --brand:#e93d3d;--brand-dark:#b91c1c;--accent:#f59e0b;--dark:#0d1226;--dark-soft:#1a2141;
  --bg:#f8fafc;--text:#1e293b;--muted:#64748b;--border:#e2e8f0;--radius:16px;
  --shadow:0 10px 30px rgba(0,0,0,0.08);--shadow-lg:0 20px 50px rgba(0,0,0,0.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:inherit;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input{font-family:inherit}
.container-main{max-width:1200px;margin:0 auto;padding:0 24px}
.section-pad{padding:80px 0}
.section-title{font-size:32px;font-weight:800;line-height:1.3;letter-spacing:-0.02em}
.section-sub{font-size:16px;color:var(--muted);margin-top:8px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;background:rgba(233,61,61,0.1);color:var(--brand)}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--brand),#f97316);color:#fff;padding:12px 28px;border-radius:999px;font-weight:700;font-size:15px;transition:all .3s ease;box-shadow:0 4px 20px rgba(233,61,61,0.35);border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(233,61,61,0.45)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{display:inline-flex;align-items:center;gap:8px;border:2px solid rgba(255,255,255,0.7);color:#fff;padding:10px 24px;border-radius:999px;font-weight:600;font-size:15px;transition:all .3s ease;background:transparent;cursor:pointer}
.btn-outline:hover{background:rgba(255,255,255,0.15);border-color:#fff}
.btn-outline:focus-visible,.btn-primary:focus-visible{outline:3px solid rgba(233,61,61,0.4);outline-offset:2px}
.drop-shadow-hero{text-shadow:0 2px 20px rgba(0,0,0,0.5)}
/* header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(13,18,38,0.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,0.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-size:22px;font-weight:900;color:#fff;letter-spacing:-0.02em;display:flex;align-items:center;gap:8px}
.logo span{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{padding:8px 18px;border-radius:999px;font-size:15px;font-weight:500;color:rgba(255,255,255,0.8);transition:all .25s}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,0.1)}
.nav-links a.active{background:linear-gradient(135deg,var(--brand),#f97316);color:#fff;font-weight:600}
.nav-cta{display:flex;align-items:center;gap:12px}
.status-pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#fff;background:rgba(255,255,255,0.1);padding:5px 14px;border-radius:999px;border:1px solid rgba(255,255,255,0.15)}
.status-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer;width:40px;height:40px;align-items:center;justify-content:center;border-radius:8px}
.menu-toggle:hover{background:rgba(255,255,255,0.1)}
/* hero */
.hero-section{position:relative;min-height:620px;display:flex;align-items:center;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,18,38,0.96) 0%,rgba(13,18,38,0.82) 45%,rgba(233,61,61,0.35) 100%)}
.hero-content{position:relative;max-width:640px;padding:100px 0}
.hero-title{font-size:56px;line-height:1.15;font-weight:900;color:#fff;letter-spacing:-0.03em;margin-bottom:20px}
.hero-sub{font-size:18px;color:rgba(255,255,255,0.85);margin-bottom:32px;line-height:1.7}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{display:flex;gap:20px;margin-top:36px;color:rgba(255,255,255,0.75);font-size:14px;flex-wrap:wrap}
.hero-meta i{margin-right:6px;color:var(--accent)}
/* stats */
.stats-section{background:var(--dark);padding:40px 0;border-bottom:1px solid rgba(255,255,255,0.05)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center;padding:16px}
.stat-num{font-size:36px;font-weight:900;color:#fff;font-variant-numeric:tabular-nums}
.stat-num small{font-size:18px;color:var(--accent)}
.stat-label{font-size:14px;color:rgba(255,255,255,0.6);margin-top:4px}
/* cards */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:all .3s ease;border:1px solid var(--border)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-img{position:relative;overflow:hidden;height:200px}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,0.2),transparent)}
.card-body{padding:24px}
.card-tag{display:inline-block;background:var(--brand);color:#fff;font-size:12px;padding:3px 12px;border-radius:999px;margin-bottom:12px;font-weight:600}
.card-title{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:8px;transition:color .2s}
.card:hover .card-title{color:var(--brand)}
.card-desc{font-size:14px;color:var(--muted);line-height:1.6}
.card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:16px;font-size:13px;color:var(--muted)}
/* feature section */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);border:1px solid var(--border);transition:all .3s;position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--brand),var(--accent));opacity:0;transition:opacity .3s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;background:linear-gradient(135deg,rgba(233,61,61,0.12),rgba(245,158,11,0.12))}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.7}
/* category band */
.cat-band{background:linear-gradient(135deg,var(--dark) 0%,var(--dark-soft) 100%);border-radius:24px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cat-info{flex:1;min-width:280px}
.cat-info h2{color:#fff;font-size:28px;font-weight:800;margin-bottom:12px}
.cat-info p{color:rgba(255,255,255,0.7);font-size:15px;line-height:1.7;margin-bottom:20px}
.cat-boxes{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;flex:1;min-width:280px}
.cat-box{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.1);border-radius:16px;padding:24px;text-align:center;transition:all .3s}
.cat-box:hover{background:rgba(255,255,255,0.14);transform:translateY(-3px)}
.cat-box .icon{font-size:30px;margin-bottom:10px}
.cat-box .name{color:#fff;font-weight:600;font-size:15px}
/* flow */
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-step{text-align:center;padding:24px 16px;position:relative}
.flow-step .step-num{width:44px;height:44px;margin:0 auto 16px;background:linear-gradient(135deg,var(--brand),var(--accent));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px;box-shadow:0 6px 20px rgba(233,61,61,0.35)}
.flow-step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.flow-step p{font-size:13px;color:var(--muted);line-height:1.6}
/* faq */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:16px;margin-bottom:14px;overflow:hidden;transition:box-shadow .3s}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-weight:600;font-size:16px}
.faq-q .chevron{transition:transform .3s;color:var(--muted);font-size:14px}
.faq-item.open .chevron{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px;color:var(--muted);font-size:15px;line-height:1.7}
.faq-item.open .faq-a{max-height:200px;padding-bottom:20px}
/* cta */
.cta-section{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:80px 0;text-align:center;border-radius:32px;margin:40px 0}
.cta-section::before{content:'';position:absolute;inset:0;background:rgba(13,18,38,0.85);border-radius:32px}
.cta-inner{position:relative;z-index:2;max-width:600px;margin:0 auto;padding:0 24px}
.cta-inner h2{color:#fff;font-size:36px;font-weight:900;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,0.8);margin-bottom:28px;font-size:16px}
/* footer */
.site-footer{background:var(--dark);padding:60px 0 24px;color:rgba(255,255,255,0.7)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo{font-size:24px;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.7;margin-top:10px;max-width:300px}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.footer-col a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,0.65);transition:all .2s}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding-top:20px;text-align:center;font-size:13px;color:rgba(255,255,255,0.4)}
/* news list */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-item{display:flex;background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:all .3s}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.news-thumb{width:180px;flex-shrink:0;background:#f1f5f9;display:flex;align-items:center;justify-content:center;font-size:36px;color:var(--brand)}
.news-body{padding:20px;flex:1}
.news-body .cat{font-size:12px;color:var(--brand);font-weight:700;text-transform:uppercase;letter-spacing:0.05em}
.news-body h3{font-size:16px;font-weight:700;margin:6px 0;line-height:1.4}
.news-body p{font-size:13px;color:var(--muted);line-height:1.6}
.news-body .time{font-size:12px;color:#94a3b8;margin-top:8px;display:block}
.empty-tip{text-align:center;padding:40px;color:var(--muted);font-size:15px}
/* responsive */
@media(max-width:1024px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .flow-steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--dark);flex-direction:column;padding:20px;gap:12px;border-bottom:1px solid rgba(255,255,255,0.1)}
  .nav-links.open{display:flex}
  .menu-toggle{display:flex}
  .nav-cta .status-pill{display:none}
  .hero-title{font-size:38px}
  .section-pad{padding:50px 0}
  .section-title{font-size:26px}
  .hero-section{min-height:520px}
  .cat-band{flex-direction:column;padding:32px}
  .cat-boxes{grid-template-columns:1fr}
  .news-item{flex-direction:column}
  .news-thumb{width:100%;height:140px}
  .cta-inner h2{font-size:28px}
}
@media(max-width:520px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .feature-grid{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:1fr}
  .hero-title{font-size:30px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-primary,.hero-actions .btn-outline{justify-content:center}
  .footer-grid{grid-template-columns:1fr}
  .cat-boxes{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root {
            --primary: #ff6b35;
            --primary-dark: #e85d2a;
            --primary-light: #fff1eb;
            --secondary: #1e2a4a;
            --secondary-light: #2d3f6b;
            --bg-light: #f8fafc;
            --bg-dark: #0f172a;
            --text-main: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius-lg: 1.25rem;
            --radius-md: 0.875rem;
            --shadow-sm: 0 2px 12px rgba(30, 42, 74, 0.06);
            --shadow-md: 0 8px 30px rgba(30, 42, 74, 0.1);
            --shadow-lg: 0 16px 40px rgba(30, 42, 74, 0.14);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: 0.01em;
            line-height: 1.2;
        }

        .logo span {
            color: var(--primary);
        }

        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }

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

        .nav-links a {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            padding: 8px 4px;
            border-bottom: 2px solid transparent;
            transition: all 0.25s ease;
        }

        .nav-links a:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            margin-left: 8px;
            white-space: nowrap;
        }

        .nav-badge .pulse {
            width: 6px;
            height: 6px;
            background: #4ade80;
            border-radius: 50%;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }

        .nav-toggle {
            display: flex;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .nav-toggle span {
            width: 24px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .guide-hero {
            position: relative;
            background: var(--bg-dark);
            padding: 96px 0 72px;
            overflow: hidden;
        }

        .guide-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }

        .guide-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 42, 74, 0.78) 50%, rgba(255, 107, 53, 0.22) 100%);
        }

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

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 20px;
        }

        .hero-eyebrow .dot {
            width: 6px;
            height: 6px;
            background: #4ade80;
            border-radius: 50%;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            max-width: 640px;
        }

        .hero-stat {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            text-align: center;
        }

        .match-section {
            position: relative;
            background: var(--bg-dark);
            overflow: hidden;
        }

        .match-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .timeline {
            position: relative;
            max-width: 780px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), rgba(255, 255, 255, 0.12));
        }

        .timeline-item {
            position: relative;
            padding-left: 58px;
            padding-bottom: 24px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 10px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
        }

        .sport-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .sport-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .sport-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 20px;
        }

        .tag {
            display: inline-block;
            background: #f1f5f9;
            color: var(--text-main);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 20px;
        }

        .tag-hot {
            background: var(--primary-light);
            color: var(--primary);
        }

        .step-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: transparent;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            line-height: 1;
            margin-bottom: 12px;
        }

        .rank-num {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9rem;
            color: var(--text-main);
            flex-shrink: 0;
        }

        .ranking-item:nth-child(1) .rank-num,
        .ranking-item:nth-child(2) .rank-num,
        .ranking-item:nth-child(3) .rank-num {
            background: var(--primary);
            color: #fff;
        }

        .ranking-banner {
            background: linear-gradient(160deg, var(--secondary) 0%, var(--secondary-light) 60%, rgba(255, 107, 53, 0.6) 100%);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .ranking-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .cta-section {
            position: relative;
            background: var(--bg-dark);
            padding: 80px 0;
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
        }

        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            box-shadow: 0 6px 24px rgba(255, 107, 53, 0.35);
            border: none;
            cursor: pointer;
        }

        .btn-primary-hero:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(255, 107, 53, 0.45);
        }

        .btn-ghost-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            color: #fff;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: 50px;
            font-size: 0.95rem;
            border: 1px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-ghost-hero:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-3px);
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 16px 40px;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
        }

        .cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 36px rgba(255, 107, 53, 0.5);
        }

        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
        }

        .footer-brand .logo {
            font-size: 1.4rem;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            font-size: 0.92rem;
            color: var(--text-weak);
            padding: 5px 0;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-weak);
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 32px;
                gap: 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-130%);
                transition: transform 0.3s ease;
                z-index: 49;
            }

            .nav-links.open {
                transform: translateY(0);
            }

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

            .guide-hero {
                padding: 64px 0 56px;
            }

            .guide-hero h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary-hero,
            .btn-ghost-hero {
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
    --primary: #0d1b2a;
    --primary-light: #16233a;
    --accent: #f97316;
    --accent-hover: #ea6c0a;
    --blue: #3b82f6;
    --bg: #0b1120;
    --bg-card: #111c2e;
    --bg-card-hover: #182845;
    --text: #e2e8f0;
    --text-muted: #8ea0b8;
    --border: rgba(255, 255, 255, 0.07);
    --radius: 14px;
    --radius-lg: 20px;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}
img {
    max-width: 100%;
    display: block;
}
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}
input,
textarea {
    font-family: inherit;
}
.container-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
/* ===== 头部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 17, 32, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    gap: 24px;
}
.logo {
    font-size: 23px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 2px;
    white-space: nowrap;
}
.logo span {
    color: var(--accent);
}
.nav-links {
    display: flex;
    gap: 6px;
    flex: 1;
    justify-content: center;
}
.nav-links a {
    padding: 9px 20px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
    position: relative;
}
.nav-links a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}
.nav-links a.active {
    color: #fff;
    background: var(--accent);
    box-shadow: 0 4px 18px rgba(249, 115, 22, 0.35);
}
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
}
.nav-toggle span {
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: var(--transition);
}
.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}
/* ===== 文章 Hero ===== */
.article-hero {
    position: relative;
    padding: 80px 0 64px;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}
.article-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 17, 32, 0.97), rgba(13, 27, 42, 0.92));
}
.article-hero-inner {
    position: relative;
    z-index: 1;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.breadcrumb a {
    color: var(--text-muted);
    transition: var(--transition);
}
.breadcrumb a:hover {
    color: var(--accent);
}
.breadcrumb .sep {
    color: rgba(255, 255, 255, 0.25);
    font-size: 12px;
}
.breadcrumb .current {
    color: #fff;
    font-weight: 500;
}
.article-cat-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(249, 115, 22, 0.18);
    border: 1px solid rgba(249, 115, 22, 0.3);
    color: var(--accent);
    padding: 5px 14px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
    margin-bottom: 18px;
    text-transform: uppercase;
}
.article-title {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.35;
    color: #fff;
    max-width: 860px;
    letter-spacing: -0.5px;
    margin-bottom: 18px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 14px;
    color: var(--text-muted);
}
.article-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 7px;
}
.article-meta .meta-item i {
    color: var(--accent);
    font-size: 13px;
}
.live-ticker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 22px;
}
.live-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulseDot 1.8s infinite;
    flex-shrink: 0;
}
@keyframes pulseDot {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
    }
}
/* ===== 主内容区 ===== */
.main-section {
    padding: 60px 0 80px;
}
.content-grid {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 40px;
    align-items: start;
}
.article-content-wrap {
    min-width: 0;
}
.article-body {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 44px 48px;
    box-shadow: var(--shadow);
}
.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin: 32px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    line-height: 1.4;
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    margin: 26px 0 12px;
    line-height: 1.4;
}
.article-body p {
    margin-bottom: 18px;
    font-size: 16px;
    line-height: 1.85;
    color: #b8c4d4;
}
.article-body ul,
.article-body ol {
    margin: 0 0 20px 24px;
    padding: 0;
}
.article-body li {
    margin-bottom: 8px;
    color: #b8c4d4;
    line-height: 1.7;
}
.article-body li::marker {
    color: var(--accent);
}
.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: rgba(249, 115, 22, 0.06);
    padding: 18px 22px;
    border-radius: 0 12px 12px 0;
    margin: 28px 0;
    font-style: italic;
    color: #a5b4c8;
    line-height: 1.7;
}
.article-body blockquote p {
    margin: 0;
    color: #a5b4c8;
    font-style: italic;
}
.article-body a {
    color: var(--accent);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}
.article-body a:hover {
    border-bottom-color: var(--accent);
}
.article-body img {
    border-radius: 12px;
    margin: 24px 0;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
    font-size: 14px;
}
.article-body table th {
    background: rgba(255, 255, 255, 0.06);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: #fff;
    border-bottom: 1px solid var(--border);
}
.article-body table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: #b8c4d4;
}
.article-body table tr:last-child td {
    border-bottom: none;
}
/* 文章尾部分享 */
.article-footer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.article-tags a {
    padding: 5px 14px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-muted);
    transition: var(--transition);
}
.article-tags a:hover {
    background: rgba(249, 115, 22, 0.1);
    border-color: rgba(249, 115, 22, 0.3);
    color: var(--accent);
}
.share-btns {
    display: flex;
    gap: 8px;
}
.share-btns a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
}
.share-btns a:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.3);
}
/* 内容未找到 */
.not-found {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    box-shadow: var(--shadow);
}
.not-found i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 20px;
    opacity: 0.5;
}
.not-found h2 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}
.not-found p {
    color: var(--text-muted);
    margin-bottom: 24px;
}
/* ===== 侧边栏 ===== */
.sidebar-sticky {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    transition: var(--transition);
}
.sidebar-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow);
}
.sidebar-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-card h3 i {
    color: var(--accent);
    font-size: 15px;
}
.sidebar-card h3::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
    margin-left: 4px;
}
.vertical-list {
    list-style: none;
}
.vertical-list li {
    margin-bottom: 4px;
}
.vertical-list a {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: var(--transition);
}
.vertical-list li:last-child a {
    border-bottom: none;
}
.vertical-list a:hover {
    background: rgba(255, 255, 255, 0.02);
    padding-left: 4px;
}
.vertical-list a:hover .list-title {
    color: var(--accent);
}
.list-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 10px;
    flex-shrink: 0;
    box-shadow: 0 0 6px rgba(249, 115, 22, 0.4);
}
.list-title {
    font-size: 14px;
    color: #c8d4e4;
    line-height: 1.5;
    flex: 1;
    transition: var(--transition);
}
.list-date {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    margin-top: 2px;
}
/* 分类卡片 */
.category-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-radius: 12px;
    background: rgba(249, 115, 22, 0.08);
    border: 1px solid rgba(249, 115, 22, 0.15);
    transition: var(--transition);
    cursor: pointer;
}
.category-card:hover {
    background: rgba(249, 115, 22, 0.14);
    border-color: rgba(249, 115, 22, 0.3);
    transform: translateX(3px);
}
.category-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--accent);
    color: #fff;
    font-size: 17px;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}
.category-name {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    flex: 1;
}
.category-arrow {
    color: var(--accent);
    font-size: 14px;
    opacity: 0.7;
    transition: var(--transition);
}
.category-card:hover .category-arrow {
    opacity: 1;
    transform: translateX(2px);
}
/* 实时统计卡 */
.stats-mini {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.stat-mini-item {
    text-align: center;
    padding: 16px 10px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.stat-mini-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.12);
}
.stat-mini-num {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 4px;
}
.stat-mini-num span {
    color: var(--accent);
}
.stat-mini-label {
    font-size: 12px;
    color: var(--text-muted);
}
/* ===== 相关文章 ===== */
.related-section {
    padding: 70px 0;
    background: linear-gradient(180deg, var(--bg) 0%, #0e1730 100%);
}
.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 36px;
    gap: 16px;
    flex-wrap: wrap;
}
.section-header h2 {
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
}
.section-header h2::after {
    content: '';
    display: block;
    width: 36px;
    height: 4px;
    border-radius: 2px;
    background: var(--accent);
    margin-top: 8px;
}
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.card-article {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.card-article:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(249, 115, 22, 0.2);
}
.card-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.card-article:hover .card-cover img {
    transform: scale(1.06);
}
.card-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(11, 17, 32, 0.5));
}
.card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}
.card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.card-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    line-height: 1.45;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition);
}
.card-article:hover .card-body h3 {
    color: var(--accent);
}
.card-body p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.card-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    padding-top: 14px;
}
.card-meta i {
    color: var(--accent);
}
.card-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}
/* ===== FAQ ===== */
.faq-section {
    padding: 70px 0;
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow);
}
.faq-item summary {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    user-select: none;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::before {
    content: '\f059';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
    color: var(--accent);
    font-size: 16px;
    flex-shrink: 0;
}
.faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 13px;
    color: var(--text-muted);
    margin-left: auto;
    transition: var(--transition);
}
.faq-item[open] summary::after {
    transform: rotate(180deg);
    color: var(--accent);
}
.faq-item summary:hover {
    background: rgba(255, 255, 255, 0.02);
}
.faq-answer {
    padding: 0 24px 20px 52px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}
/* ===== CTA ===== */
.cta-section {
    padding: 30px 0 80px;
}
.cta-banner {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    padding: 70px 50px;
    text-align: center;
}
.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 17, 32, 0.95), rgba(13, 27, 42, 0.88));
}
.cta-banner .cta-inner {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}
.cta-banner h2 {
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}
.cta-banner p {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 28px;
    line-height: 1.7;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    line-height: 1.4;
}
.btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 20px rgba(249, 115, 22, 0.3);
}
.btn-accent:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(249, 115, 22, 0.4);
}
.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.25);
    color: #fff;
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    background: rgba(249, 115, 22, 0.06);
}
.btn-sm {
    padding: 8px 18px;
    font-size: 13px;
    border-radius: 10px;
}
.btn:focus-visible {
    outline: 3px solid rgba(249, 115, 22, 0.4);
    outline-offset: 2px;
}
/* ===== 页脚 ===== */
.site-footer {
    background: #09121f;
    border-top: 1px solid var(--border);
    padding: 70px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 48px;
}
.footer-brand .logo {
    font-size: 22px;
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 360px;
}
.footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 3px;
    border-radius: 2px;
    background: var(--accent);
}
.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
    padding: 6px 0;
    transition: var(--transition);
}
.footer-col a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}
.footer-bottom p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr 300px;
        gap: 28px;
    }
    .article-body {
        padding: 34px 30px;
    }
    .article-title {
        font-size: 28px;
    }
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 768px) {
    .header-inner {
        height: 64px;
    }
    .nav-toggle {
        display: flex;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links a {
        padding: 12px 18px;
        width: 100%;
        text-align: center;
        border-radius: 8px;
    }
    .content-grid {
        grid-template-columns: 1fr;
    }
    .sidebar-sticky {
        position: static;
        display: flex;
        flex-direction: column;
        gap: 20px;
        order: 2;
    }
    .article-body {
        padding: 24px 20px;
    }
    .article-title {
        font-size: 24px;
    }
    .article-hero {
        padding: 50px 0 40px;
    }
    .grid-3 {
        grid-template-columns: 1fr;
    }
    .cta-banner {
        padding: 50px 24px;
    }
    .cta-banner h2 {
        font-size: 24px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-brand p {
        max-width: 100%;
    }
}
@media (max-width: 520px) {
    .container-main {
        padding: 0 16px;
    }
    .logo {
        font-size: 18px;
    }
    .article-meta {
        gap: 12px;
        font-size: 13px;
    }
    .card-body h3 {
        font-size: 15px;
    }
    .card-meta {
        flex-direction: column;
        gap: 6px;
        align-items: flex-start;
    }
    .article-footer-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    .faq-answer {
        padding-left: 30px;
    }
    .cta-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .stats-mini {
        grid-template-columns: 1fr 1fr;
    }
}