/* roulang page: index */
:root {
  --primary: #0f0f2d;
  --primary-light: #1a1a3e;
  --primary-dark: #08081a;
  --accent: #ff6b35;
  --accent-hover: #e55a2b;
  --gold: #ffd700;
  --gold-light: #fff3c4;
  --text: #2d2d3a;
  --text-light: #6b6b80;
  --text-white: #f0f0f5;
  --bg: #f5f5fa;
  --bg-card: #ffffff;
  --bg-dark: #0f0f2d;
  --border: #e2e2ed;
  --border-light: #f0f0f5;
  --shadow-sm: 0 2px 8px rgba(15,15,45,0.06);
  --shadow: 0 4px 24px rgba(15,15,45,0.10);
  --shadow-lg: 0 12px 48px rgba(15,15,45,0.14);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-xl: 20px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --nav-width: 240px;
  --header-h: 0px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  display:flex;
  min-height:100vh;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;transition:var(--transition)}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 左侧导航 ===== */
.sidebar{
  position:fixed;top:0;left:0;width:var(--nav-width);height:100vh;
  background:var(--primary);color:var(--text-white);
  display:flex;flex-direction:column;z-index:1000;
  padding:28px 0;overflow-y:auto;
  border-right:1px solid rgba(255,255,255,0.06);
}
.sidebar-logo{
  padding:0 24px 28px;border-bottom:1px solid rgba(255,255,255,0.08);
  margin-bottom:20px;
}
.sidebar-logo a{
  font-size:22px;font-weight:800;color:var(--gold);
  letter-spacing:-0.5px;display:flex;align-items:center;gap:10px;
}
.sidebar-logo a i{font-size:26px;color:var(--accent)}
.sidebar-logo span{font-size:12px;color:rgba(255,255,255,0.4);display:block;margin-top:2px;font-weight:400;letter-spacing:0.3px}
.sidebar-nav{flex:1;padding:0 12px}
.sidebar-nav a{
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;border-radius:var(--radius-sm);
  color:rgba(255,255,255,0.7);font-size:15px;font-weight:500;
  transition:var(--transition);margin-bottom:2px;
}
.sidebar-nav a i{width:20px;text-align:center;font-size:16px}
.sidebar-nav a:hover{background:rgba(255,255,255,0.08);color:#fff}
.sidebar-nav a.active{background:var(--accent);color:#fff;font-weight:600;box-shadow:0 4px 16px rgba(255,107,53,0.3)}
.sidebar-nav a.active i{color:#fff}
.sidebar-footer{
  padding:20px 24px 0;border-top:1px solid rgba(255,255,255,0.08);
  margin-top:12px;
}
.sidebar-footer .social{display:flex;gap:10px;margin-bottom:12px}
.sidebar-footer .social a{
  width:34px;height:34px;border-radius:50%;
  background:rgba(255,255,255,0.06);color:rgba(255,255,255,0.6);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;transition:var(--transition);
}
.sidebar-footer .social a:hover{background:var(--accent);color:#fff}
.sidebar-footer p{font-size:11px;color:rgba(255,255,255,0.3)}

/* ===== 主内容区 ===== */
.main-content{margin-left:var(--nav-width);flex:1;min-height:100vh;width:calc(100% - var(--nav-width))}

/* ===== 移动端汉堡 ===== */
.mobile-toggle{display:none;position:fixed;top:16px;right:16px;z-index:1100;
  width:44px;height:44px;border-radius:50%;background:var(--primary);
  color:#fff;font-size:20px;align-items:center;justify-content:center;
  box-shadow:var(--shadow);cursor:pointer;border:none;
}
.sidebar-overlay{display:none}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:520px;display:flex;align-items:center;
  background:var(--primary-dark);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;background-blend-mode:overlay;
  padding:80px 40px;overflow:hidden;
}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,15,45,0.85) 0%,rgba(15,15,45,0.60) 50%,rgba(255,107,53,0.20) 100%);z-index:1}
.hero-content{position:relative;z-index:2;max-width:700px}
.hero-tag{
  display:inline-block;padding:6px 18px;border-radius:50px;
  background:rgba(255,215,0,0.15);color:var(--gold);
  font-size:13px;font-weight:600;letter-spacing:0.5px;
  backdrop-filter:blur(8px);margin-bottom:20px;
}
.hero h1{font-size:54px;font-weight:800;color:#fff;line-height:1.15;letter-spacing:-1px;margin-bottom:16px}
.hero h1 span{background:linear-gradient(135deg,var(--gold),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:18px;color:rgba(255,255,255,0.8);max-width:560px;margin-bottom:32px;line-height:1.6}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-actions .btn{padding:14px 36px;border-radius:50px;font-size:16px;font-weight:600;display:inline-flex;align-items:center;gap:10px;cursor:pointer;transition:var(--transition)}
.hero-actions .btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 32px rgba(255,107,53,0.35)}
.hero-actions .btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 40px rgba(255,107,53,0.45)}
.hero-actions .btn-outline{background:transparent;border:2px solid rgba(255,255,255,0.25);color:#fff}
.hero-actions .btn-outline:hover{background:rgba(255,255,255,0.10);border-color:rgba(255,255,255,0.5)}

/* ===== 板块通用 ===== */
.section{padding:80px 24px}
.section-dark{background:var(--primary);color:var(--text-white)}
.section-alt{background:var(--bg-card)}
.section-header{text-align:center;max-width:680px;margin:0 auto 56px}
.section-header h2{font-size:34px;font-weight:700;color:var(--primary);letter-spacing:-0.5px;margin-bottom:12px}
.section-header p{color:var(--text-light);font-size:16px}
.section-dark .section-header h2{color:#fff}
.section-dark .section-header p{color:rgba(255,255,255,0.6)}
.section-tag{
  display:inline-block;padding:4px 14px;border-radius:50px;
  background:rgba(255,107,53,0.10);color:var(--accent);
  font-size:12px;font-weight:600;letter-spacing:0.5px;
  margin-bottom:12px;text-transform:uppercase;
}
.section-dark .section-tag{background:rgba(255,215,0,0.12);color:var(--gold)}

/* ===== 特色卡片 ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{
  background:var(--bg-card);border-radius:var(--radius);padding:36px 28px;
  box-shadow:var(--shadow-sm);border:1px solid var(--border-light);
  transition:var(--transition);text-align:center;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature-card .icon{
  width:60px;height:60px;border-radius:16px;
  background:linear-gradient(135deg,rgba(255,107,53,0.12),rgba(255,215,0,0.08));
  display:flex;align-items:center;justify-content:center;
  font-size:26px;color:var(--accent);margin:0 auto 18px;
}
.feature-card h3{font-size:20px;font-weight:600;margin-bottom:8px;color:var(--primary)}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.6}
.section-dark .feature-card{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.08)}
.section-dark .feature-card h3{color:#fff}
.section-dark .feature-card p{color:rgba(255,255,255,0.6)}
.section-dark .feature-card .icon{background:rgba(255,215,0,0.10);color:var(--gold)}

/* ===== 游戏卡片网格 ===== */
.games-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.game-card{
  background:var(--bg-card);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);border:1px solid var(--border-light);
  transition:var(--transition);cursor:pointer;
}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.game-card .cover{height:180px;background:var(--primary-light);position:relative;overflow:hidden}
.game-card .cover img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.game-card:hover .cover img{transform:scale(1.05)}
.game-card .badge{
  position:absolute;top:12px;left:12px;
  padding:4px 12px;border-radius:50px;
  background:var(--accent);color:#fff;
  font-size:11px;font-weight:600;
}
.game-card .info{padding:20px}
.game-card .info h3{font-size:18px;font-weight:600;margin-bottom:4px;color:var(--primary)}
.game-card .info .meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-light);margin-bottom:10px}
.game-card .info .meta i{font-size:12px}
.game-card .info .desc{font-size:14px;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.game-card .info .btn-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--accent)}
.game-card .info .btn-link i{transition:var(--transition)}
.game-card:hover .info .btn-link i{transform:translateX(4px)}

/* ===== CMS 资讯列表 ===== */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-item{
  background:var(--bg-card);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow-sm);border:1px solid var(--border-light);
  transition:var(--transition);display:flex;flex-direction:column;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.news-item .cat{
  display:inline-block;padding:3px 12px;border-radius:50px;
  background:rgba(255,107,53,0.08);color:var(--accent);
  font-size:12px;font-weight:600;margin-bottom:10px;width:fit-content;
}
.news-item h3{font-size:18px;font-weight:600;margin-bottom:6px;color:var(--primary)}
.news-item h3 a{color:inherit}
.news-item h3 a:hover{color:var(--accent)}
.news-item p{font-size:14px;color:var(--text-light);line-height:1.6;flex:1;margin-bottom:12px}
.news-item .meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-light);margin-top:auto;padding-top:12px;border-top:1px solid var(--border-light)}
.news-item .meta i{font-size:12px}
.news-empty{
  grid-column:1/-1;text-align:center;padding:48px 24px;
  background:var(--bg-card);border-radius:var(--radius);
  color:var(--text-light);font-size:16px;
}

/* ===== 数据统计 ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{text-align:center;padding:32px 16px}
.stat-card .num{font-size:44px;font-weight:800;color:var(--gold);line-height:1.1;margin-bottom:4px}
.stat-card .label{font-size:14px;color:rgba(255,255,255,0.6);font-weight:500}
.section-dark .stat-card{border-right:1px solid rgba(255,255,255,0.08)}
.section-dark .stat-card:last-child{border-right:none}

/* ===== FAQ ===== */
.faq-grid{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-card);border-radius:var(--radius-sm);
  border:1px solid var(--border-light);overflow:hidden;
  transition:var(--transition);
}
.faq-item summary{
  padding:18px 24px;font-size:16px;font-weight:600;
  color:var(--primary);cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;
  list-style:none;transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--accent);transition:var(--transition);font-size:14px}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-item .answer{padding:0 24px 20px;font-size:14px;color:var(--text-light);line-height:1.7}

/* ===== CTA ===== */
.cta-section{
  background:var(--primary-dark);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;background-blend-mode:overlay;
  padding:80px 24px;text-align:center;position:relative;
}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,15,45,0.88),rgba(15,15,45,0.70));z-index:1}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:36px;font-weight:700;color:#fff;margin-bottom:12px}
.cta-section p{font-size:17px;color:rgba(255,255,255,0.7);max-width:520px;margin:0 auto 28px}
.cta-section .btn{
  padding:16px 44px;border-radius:50px;font-size:17px;font-weight:600;
  background:var(--accent);color:#fff;display:inline-flex;align-items:center;gap:10px;
  box-shadow:0 8px 32px rgba(255,107,53,0.35);cursor:pointer;transition:var(--transition);
}
.cta-section .btn:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:0 12px 40px rgba(255,107,53,0.45)}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--primary-dark);color:rgba(255,255,255,0.6);
  padding:48px 24px 32px;border-top:1px solid rgba(255,255,255,0.06);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;max-width:1200px;margin:0 auto}
.footer-brand .logo{font-size:22px;font-weight:800;color:var(--gold);display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand .logo i{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.7;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;padding:4px 0;color:rgba(255,255,255,0.5);transition:var(--transition)}
.footer-col a:hover{color:var(--gold);padding-left:4px}
.footer-bottom{max-width:1200px;margin:32px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,0.06);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .games-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .section-dark .stat-card:nth-child(2){border-right:none}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .sidebar{transform:translateX(-100%);transition:transform 0.4s ease}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:999}
  .sidebar-overlay.show{display:block}
  .mobile-toggle{display:flex}
  .main-content{margin-left:0;width:100%}
  .hero{padding:56px 24px;min-height:420px}
  .hero h1{font-size:34px}
  .hero p{font-size:16px}
  .section{padding:48px 16px}
  .section-header h2{font-size:28px}
  .features-grid{grid-template-columns:1fr}
  .games-grid{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .section-dark .stat-card:nth-child(2){border-right:none}
  .footer-grid{grid-template-columns:1fr;text-align:center}
  .footer-brand p{max-width:100%}
  .footer-bottom{flex-direction:column;text-align:center}
  .faq-item summary{font-size:15px;padding:16px 18px}
  .cta-section h2{font-size:28px}
  .cta-section p{font-size:15px}
}
@media(max-width:520px){
  .hero h1{font-size:28px}
  .hero-actions .btn{padding:12px 24px;font-size:14px}
  .games-grid .game-card .cover{height:140px}
  .stats-grid{grid-template-columns:1fr}
  .section-dark .stat-card{border-right:none}
  .section-header h2{font-size:24px}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e85d2c;
            --primary-light: #f0783e;
            --primary-dark: #c44a20;
            --secondary: #1e2a4a;
            --secondary-light: #2c3d6b;
            --accent: #f5c842;
            --accent-light: #fae08a;
            --bg: #f8f6f3;
            --bg-card: #ffffff;
            --bg-dark: #141c2b;
            --bg-section-alt: #f0ece7;
            --text: #1a1a2e;
            --text-light: #5a5a72;
            --text-muted: #8a8aa0;
            --text-white: #f5f0eb;
            --border: #e0dbd4;
            --border-light: #f0ece7;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.14);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --sidebar-width: 220px;
            --header-h: 64px;
            --max-w: 1280px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            display: flex;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }
        h1 {
            font-size: 2.6rem;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 0.75rem;
            color: var(--text-light);
        }
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.3rem;
            letter-spacing: -0.02em;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 2rem;
        }
        .section-pad {
            padding: 5rem 0;
        }

        /* ===== 左侧导航 ===== */
        .site-sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-dark);
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform var(--transition);
            border-right: 1px solid rgba(255, 255, 255, 0.05);
        }
        .sidebar-brand {
            padding: 1.5rem 1.25rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-brand .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.02em;
        }
        .sidebar-brand .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .sidebar-nav {
            flex: 1;
            padding: 1.25rem 0.75rem;
            display: flex;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1.1rem;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
        }
        .sidebar-nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(232, 93, 44, 0.35);
        }
        .sidebar-nav a.active i {
            color: #fff;
        }
        .sidebar-footer {
            padding: 1rem 1.25rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.3);
            text-align: center;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== 移动端汉堡按钮 ===== */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 16px;
            z-index: 1100;
            background: var(--bg-dark);
            color: var(--text-white);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-xs);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: var(--shadow);
            border: none;
            cursor: pointer;
            transition: background var(--transition);
        }
        .mobile-toggle:hover {
            background: var(--secondary-light);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            backdrop-filter: blur(2px);
        }

        /* ===== Banner / Hero ===== */
        .category-banner {
            position: relative;
            padding: 6rem 0 5rem;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-blend-mode: overlay;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20, 28, 43, 0.88) 0%, rgba(20, 28, 43, 0.4) 100%);
            z-index: 1;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .category-banner h1 {
            font-size: 3rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 0.75rem;
            letter-spacing: -0.03em;
        }
        .category-banner h1 i {
            color: var(--primary);
            margin-right: 12px;
        }
        .category-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin-bottom: 1.5rem;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-tags .tag {
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-white);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }
        .banner-tags .tag:hover {
            background: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== 子分类标签 ===== */
        .sub-nav {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .sub-nav .container {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .sub-nav .sub-link {
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .sub-nav .sub-link:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .sub-nav .sub-link.active {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .guide-card .card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
            background: var(--bg-section-alt);
        }
        .guide-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-img img {
            transform: scale(1.05);
        }
        .guide-card .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 12px rgba(232, 93, 44, 0.3);
        }
        .guide-card .card-img .badge.hot {
            background: var(--accent);
            color: var(--text);
        }
        .guide-card .card-img .badge.new {
            background: #2ecc71;
        }
        .guide-card .card-body {
            padding: 1.25rem 1.25rem 1rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--text);
        }
        .guide-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 0.75rem;
            flex: 1;
            line-height: 1.5;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 0.75rem;
            border-top: 1px solid var(--border-light);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .guide-card .card-meta .difficulty {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--accent);
        }
        .guide-card .card-meta .difficulty i {
            font-size: 0.7rem;
        }
        .guide-card .card-meta .diff-label {
            color: var(--text-muted);
            margin-left: 4px;
        }

        /* ===== 最新攻略列表 ===== */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .guide-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 1rem 1.25rem;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .guide-list-item:hover {
            box-shadow: var(--shadow);
            border-color: var(--border);
            transform: translateX(4px);
        }
        .guide-list-item .rank {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 32px;
            text-align: center;
        }
        .guide-list-item .rank.top {
            color: var(--accent);
        }
        .guide-list-item .rank.top2 {
            color: #c0c0c0;
        }
        .guide-list-item .rank.top3 {
            color: #cd7f32;
        }
        .guide-list-item .list-info {
            flex: 1;
        }
        .guide-list-item .list-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .guide-list-item .list-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }
        .guide-list-item .list-tag {
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--bg-section-alt);
            color: var(--text-light);
            white-space: nowrap;
        }

        /* ===== 攻略专题 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 1.75rem 1.5rem;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .feature-item .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-section-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.5rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .feature-item:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }
        .feature-item h4 {
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin: 0;
        }

        /* ===== 路线/路径节点 ===== */
        .path-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            color: var(--text-white);
        }
        .path-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(20, 28, 43, 0.78);
            z-index: 0;
        }
        .path-section .container {
            position: relative;
            z-index: 1;
        }
        .path-section .section-title {
            color: var(--text-white);
        }
        .path-section .section-sub {
            color: rgba(255, 255, 255, 0.65);
        }
        .path-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-top: 2rem;
        }
        .path-step {
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 1.5rem 1.75rem;
            flex: 1;
            min-width: 180px;
            max-width: 240px;
            text-align: center;
            transition: all var(--transition);
        }
        .path-step:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
            border-color: var(--primary);
        }
        .path-step .step-num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            opacity: 0.6;
            margin-bottom: 0.3rem;
        }
        .path-step h4 {
            color: var(--text-white);
            font-size: 1.05rem;
            margin-bottom: 0.3rem;
        }
        .path-step p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            margin: 0;
        }
        .path-connector {
            display: flex;
            align-items: center;
            color: var(--primary);
            font-size: 1.5rem;
            opacity: 0.4;
            padding: 0 4px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item .faq-q {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            background: var(--bg-section-alt);
        }
        .faq-item .faq-q i {
            color: var(--primary);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }
        .faq-item.active .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 1.5rem 1.1rem;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            text-align: center;
            padding: 5rem 0;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20, 28, 43, 0.85) 0%, rgba(30, 42, 74, 0.7) 100%);
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2.2rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            max-width: 500px;
            margin: 0.5rem auto 1.5rem;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: none;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(232, 93, 44, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 93, 44, 0.45);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--text-white);
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 4rem 0 2rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 0.75rem;
        }
        .footer-brand .logo i {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            max-width: var(--max-w);
            margin: 2.5rem auto 0;
            padding: 1.5rem 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-banner h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --sidebar-width: 220px;
            }
            .site-sidebar {
                transform: translateX(-100%);
            }
            .site-sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.open {
                display: block;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 0;
            }
            .category-banner {
                padding: 4rem 0 3rem;
            }
            .category-banner h1 {
                font-size: 1.8rem;
            }
            .category-banner h1 i {
                font-size: 1.6rem;
            }
            .category-banner p {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-pad {
                padding: 3rem 0;
            }
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 16px;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .path-steps {
                flex-direction: column;
                align-items: center;
            }
            .path-step {
                max-width: 100%;
                width: 100%;
            }
            .path-connector {
                transform: rotate(90deg);
                padding: 4px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .guide-list-item {
                flex-wrap: wrap;
            }
            .guide-list-item .list-tag {
                margin-left: auto;
            }
            .sub-nav .container {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }
            .sub-nav .sub-link {
                white-space: nowrap;
                flex-shrink: 0;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .category-banner h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .container {
                padding: 0 16px;
            }
            .guide-card .card-img {
                height: 160px;
            }
            .banner-tags .tag {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
        }
        @media (min-width: 769px) {
            .site-sidebar {
                transform: translateX(0) !important;
            }
            .sidebar-overlay {
                display: none !important;
            }
            .mobile-toggle {
                display: none !important;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .gap-1 {
            gap: 1rem;
        }

        /* ===== 动画 ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .anim-fade-up {
            animation: fadeUp 0.6s ease forwards;
        }
        .anim-delay-1 {
            animation-delay: 0.1s;
        }
        .anim-delay-2 {
            animation-delay: 0.2s;
        }
        .anim-delay-3 {
            animation-delay: 0.3s;
        }
        .anim-delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #457b9d;
            --secondary-dark: #1d3557;
            --accent: #f4a261;
            --bg: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-card-hover: #222244;
            --bg-sidebar: #12121e;
            --text: #f1f1f6;
            --text-secondary: #a8a8c8;
            --text-muted: #6c6c8a;
            --border: #2a2a44;
            --border-light: #3a3a5c;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0,0,0,0.5);
            --shadow-sm: 0 4px 16px rgba(0,0,0,0.3);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.6);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --sidebar-width: 260px;
            --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

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

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

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

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover { color: var(--accent); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; border-radius: 4px; }

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

        button, input, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        ul, ol { list-style: none; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .app-wrapper {
            display: flex;
            min-height: 100vh;
        }

        /* ===== 左侧竖向导航 ===== */
        .sidebar-header {
            width: var(--sidebar-width);
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 100;
            padding: 32px 20px;
            overflow-y: auto;
            transition: transform var(--transition);
        }

        .sidebar-brand {
            margin-bottom: 40px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--border);
        }

        .sidebar-brand .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 12px;
            letter-spacing: 1px;
        }

        .sidebar-brand .logo i {
            font-size: 28px;
            color: var(--accent);
        }

        .sidebar-brand p {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.5;
        }

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

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 500;
            transition: all var(--transition);
            position: relative;
        }

        .sidebar-nav a i {
            width: 20px;
            font-size: 18px;
            text-align: center;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .sidebar-nav a:hover {
            background: var(--bg-card);
            color: var(--text);
        }
        .sidebar-nav a:hover i {
            color: var(--primary-light);
        }

        .sidebar-nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230,57,70,0.3);
        }
        .sidebar-nav a.active i {
            color: #fff;
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -20px;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
        }

        .sidebar-nav a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .sidebar-toggle {
            display: none;
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text);
            transition: background var(--transition);
        }
        .sidebar-toggle:hover {
            background: var(--bg-card-hover);
        }

        /* ===== 主内容区 ===== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            padding: 0;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: 80px 40px 60px;
            background: linear-gradient(135deg, rgba(15,15,26,0.92) 0%, rgba(26,26,46,0.88) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            border-bottom: 1px solid var(--border);
        }

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

        .article-hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }

        .article-hero-meta .category-badge {
            background: var(--primary);
            color: #fff;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-hero-meta .category-badge i {
            font-size: 12px;
        }

        .article-hero-meta .date {
            color: var(--text-muted);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero-meta .date i {
            font-size: 13px;
        }

        .article-hero h1 {
            font-size: clamp(28px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            max-width: 900px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.4);
            letter-spacing: -0.5px;
        }

        .article-hero .article-desc {
            font-size: 18px;
            color: var(--text-secondary);
            margin-top: 16px;
            max-width: 720px;
            line-height: 1.6;
        }

        /* ===== 文章正文 ===== */
        .article-body-section {
            padding: 60px 40px 40px;
            background: var(--bg);
        }

        .article-body-section .container {
            max-width: 860px;
        }

        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
        }

        .article-content h2,
        .article-content h3,
        .article-content h4 {
            margin-top: 36px;
            margin-bottom: 16px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
        }
        .article-content h2 { font-size: 28px; }
        .article-content h3 { font-size: 22px; }
        .article-content h4 { font-size: 18px; }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content img {
            margin: 32px auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            max-width: 100%;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            margin: 28px 0;
            background: var(--bg-card);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }

        .article-content ul,
        .article-content ol {
            margin: 20px 0;
            padding-left: 24px;
        }
        .article-content ul li {
            list-style: disc;
            margin-bottom: 8px;
        }
        .article-content ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }

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

        .article-content pre {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            margin: 24px 0;
            color: var(--text-secondary);
        }

        .article-content code {
            background: var(--bg-card);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: var(--accent);
        }

        /* ===== 文章标签 ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }

        .article-tags .tag {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: default;
        }
        .article-tags .tag i {
            margin-right: 6px;
            font-size: 11px;
            color: var(--accent);
        }
        .article-tags .tag:hover {
            background: var(--bg-card-hover);
            border-color: var(--primary);
            color: var(--text);
        }

        /* ===== 文章导航（上一篇/下一篇） ===== */
        .article-pagination {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .article-pagination a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            color: var(--text-secondary);
            font-size: 15px;
            flex: 1;
            min-width: 200px;
        }
        .article-pagination a:hover {
            background: var(--bg-card-hover);
            border-color: var(--primary);
            color: var(--text);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .article-pagination a i {
            font-size: 18px;
            color: var(--primary);
        }
        .article-pagination .next {
            text-align: right;
            justify-content: flex-end;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 40px;
            background: var(--bg-card);
            border-top: 1px solid var(--border);
        }

        .related-section .section-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section .section-title i {
            color: var(--primary);
            font-size: 24px;
        }

        .related-section .section-sub {
            color: var(--text-muted);
            margin-bottom: 32px;
            font-size: 15px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .related-card .card-img {
            height: 180px;
            background: var(--bg-card-hover) center/cover no-repeat;
            position: relative;
        }
        .related-card .card-img .card-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .related-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        .related-card .card-body .card-meta i {
            margin-right: 4px;
        }
        .related-card .card-body .read-more {
            color: var(--primary-light);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .related-card .card-body .read-more:hover {
            gap: 12px;
            color: var(--accent);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 40px;
            background: var(--bg);
        }

        .faq-section .section-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .faq-section .section-title i {
            color: var(--accent);
            font-size: 24px;
        }
        .faq-section .section-sub {
            color: var(--text-muted);
            margin-bottom: 32px;
            font-size: 15px;
        }

        .faq-grid {
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item summary {
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 14px;
            list-style: none;
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition);
        }
        .faq-item[open] summary i {
            transform: rotate(90deg);
        }
        .faq-item summary:hover {
            color: var(--primary-light);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item .faq-answer a {
            color: var(--primary-light);
            text-decoration: underline;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 40px;
            background: linear-gradient(135deg, rgba(230,57,70,0.12) 0%, rgba(69,123,157,0.08) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .cta-section .cta-box {
            max-width: 680px;
            margin: 0 auto;
            background: rgba(15,15,26,0.8);
            backdrop-filter: blur(12px);
            padding: 48px 40px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 17px;
            margin-bottom: 28px;
        }
        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.3);
            color: #fff;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 4px;
        }
        .btn-outline {
            background: transparent;
            color: var(--text);
            border-color: var(--border-light);
        }
        .btn-outline:hover {
            background: var(--bg-card);
            border-color: var(--primary);
            color: var(--primary-light);
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 4px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border);
            padding: 60px 40px 24px;
            margin-left: var(--sidebar-width);
        }

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

        .footer-brand .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 14px;
            padding: 6px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 文章未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 100px 40px;
            background: var(--bg);
            min-height: 50vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .not-found-box i {
            font-size: 64px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-secondary);
            font-size: 17px;
            margin-bottom: 28px;
        }
        .not-found-box .btn {
            background: var(--primary);
            color: #fff;
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .not-found-box .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.3);
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-hero {
                padding: 60px 24px 40px;
                min-height: 280px;
            }
            .article-body-section,
            .related-section,
            .faq-section,
            .cta-section {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        @media (max-width: 820px) {
            .sidebar-header {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar-header.open {
                transform: translateX(0);
            }
            .sidebar-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .site-footer {
                margin-left: 0;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .article-hero .article-desc {
                font-size: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            :root {
                --sidebar-width: 0px;
            }
            .container {
                padding: 0 16px;
            }
            .article-hero {
                padding: 40px 16px 32px;
                min-height: 220px;
            }
            .article-hero h1 {
                font-size: 24px;
            }
            .article-hero .article-desc {
                font-size: 15px;
            }
            .article-body-section,
            .related-section,
            .faq-section,
            .cta-section {
                padding-left: 16px;
                padding-right: 16px;
            }
            .article-body-section {
                padding-top: 32px;
                padding-bottom: 24px;
            }
            .article-content {
                font-size: 16px;
            }
            .article-content h2 { font-size: 22px; }
            .article-content h3 { font-size: 18px; }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-section .cta-box {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .article-pagination {
                flex-direction: column;
            }
            .article-pagination a {
                min-width: auto;
            }
            .sidebar-header {
                width: 100%;
                transform: translateY(-100%);
                height: auto;
                bottom: auto;
                padding: 20px 16px;
                flex-direction: row;
                flex-wrap: wrap;
                align-items: center;
                border-right: none;
                border-bottom: 1px solid var(--border);
            }
            .sidebar-header.open {
                transform: translateY(0);
            }
            .sidebar-brand {
                margin-bottom: 0;
                padding-bottom: 0;
                border-bottom: none;
                flex: 1;
            }
            .sidebar-brand .logo {
                font-size: 20px;
            }
            .sidebar-brand p {
                display: none;
            }
            .sidebar-nav {
                flex-direction: row;
                flex-wrap: wrap;
                width: 100%;
                margin-top: 16px;
                gap: 4px;
            }
            .sidebar-nav a {
                padding: 10px 16px;
                font-size: 14px;
                flex: 1;
                justify-content: center;
                min-width: 80px;
            }
            .sidebar-nav a.active::before {
                display: none;
            }
            .sidebar-toggle {
                position: relative;
                top: auto;
                right: auto;
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 70px;
            }
            .site-footer {
                margin-left: 0;
                padding: 40px 16px 20px;
            }
        }

        @media (max-width: 480px) {
            .article-hero-meta {
                gap: 10px;
            }
            .article-hero-meta .category-badge {
                font-size: 12px;
                padding: 4px 14px;
            }
            .article-hero h1 {
                font-size: 20px;
            }
            .article-hero .article-desc {
                font-size: 14px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .not-found-box {
                padding: 60px 20px;
            }
            .not-found-box i {
                font-size: 48px;
            }
            .not-found-box h2 {
                font-size: 24px;
            }
        }

        /* ===== 滚动条 ===== */
        .sidebar-header::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar-header::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar-header::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        .sidebar-header::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        ::selection {
            background: var(--primary);
            color: #fff;
        }