/* roulang page: index */
:root {
  --primary: #7C3AED;
  --primary-light: #8B5CF6;
  --primary-dark: #5B21B6;
  --accent: #F59E0B;
  --accent-light: #FBBF24;
  --accent-dark: #D97706;
  --bg-dark: #0F0F1A;
  --bg-card: #1A1A2E;
  --bg-card-hover: #222244;
  --bg-section: #12122A;
  --text-white: #FFFFFF;
  --text-light: #E2E8F0;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --border-color: #2D2D4A;
  --border-light: #3D3D5C;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 48px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(124,58,237,0.3);
  --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --max-width: 1200px;
  --header-height: 72px;
  --tab-height: 64px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);background:var(--bg-dark);color:var(--text-light);line-height:1.7;font-size:16px;padding-bottom:var(--tab-height);overflow-x:hidden}
a{color:var(--primary-light);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent-light)}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-sm)}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;outline:none;border:none}
button{cursor:pointer;background:none}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-title{font-size:2rem;font-weight:700;color:var(--text-white);margin-bottom:12px;text-align:center}
.section-sub{font-size:1.05rem;color:var(--text-muted);text-align:center;max-width:640px;margin:0 auto 48px}
.text-center{text-align:center}
.text-gradient{background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:50px;font-weight:600;font-size:1rem;transition:var(--transition);position:relative;overflow:hidden;border:2px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-color:var(--primary-light);box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(124,58,237,0.5);color:#fff}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#1a1a2e;border-color:var(--accent-light)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(245,158,11,0.4);color:#1a1a2e}
.btn-outline{background:transparent;border:2px solid var(--border-light);color:var(--text-light)}
.btn-outline:hover{background:var(--bg-card);border-color:var(--primary-light);color:var(--primary-light)}
.btn-lg{padding:18px 44px;font-size:1.1rem}
.btn-sm{padding:8px 20px;font-size:0.875rem}
.badge{display:inline-block;padding:4px 14px;border-radius:50px;font-size:0.75rem;font-weight:600;background:rgba(124,58,237,0.2);color:var(--primary-light);border:1px solid rgba(124,58,237,0.3)}
.badge-accent{background:rgba(245,158,11,0.2);color:var(--accent-light);border-color:rgba(245,158,11,0.3)}
.badge-hot{background:rgba(239,68,68,0.2);color:#EF4444;border-color:rgba(239,68,68,0.3)}
.card{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-color);padding:24px;transition:var(--transition)}
.card:hover{background:var(--bg-card-hover);border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tag{display:inline-block;padding:2px 12px;border-radius:50px;font-size:0.75rem;background:rgba(255,255,255,0.06);color:var(--text-muted);border:1px solid var(--border-color);transition:var(--transition)}
.tag:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
/* Header */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(15,15,26,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.05);height:var(--header-height)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px}
.logo{font-size:1.35rem;font-weight:800;color:var(--text-white);letter-spacing:-0.5px;display:flex;align-items:center;gap:8px}
.logo span{background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#fff;flex-shrink:0}
.nav-desktop{display:flex;align-items:center;gap:32px}
.nav-desktop a{color:var(--text-muted);font-weight:500;font-size:0.95rem;position:relative;padding:4px 0;transition:var(--transition)}
.nav-desktop a::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--primary-light),var(--accent));transition:var(--transition);border-radius:2px}
.nav-desktop a:hover,.nav-desktop a.active{color:var(--text-white)}
.nav-desktop a:hover::after,.nav-desktop a.active::after{width:100%}
.nav-desktop a.active{color:var(--primary-light)}
.header-actions{display:flex;align-items:center;gap:12px}
/* Mobile Bottom Tab */
.bottom-tab{position:fixed;bottom:0;left:0;right:0;z-index:1001;background:rgba(15,15,26,0.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid rgba(255,255,255,0.06);display:none;height:var(--tab-height);padding:0 8px;justify-content:space-around;align-items:center}
.bottom-tab a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 12px;border-radius:var(--radius-sm);color:var(--text-dim);font-size:0.65rem;font-weight:500;transition:var(--transition);min-width:56px}
.bottom-tab a i{font-size:1.2rem;transition:var(--transition)}
.bottom-tab a:hover,.bottom-tab a.active{color:var(--primary-light);background:rgba(124,58,237,0.1)}
.bottom-tab a.active{color:var(--accent)}
/* Hero */
.hero{position:relative;min-height:90vh;display:flex;align-items:center;padding:120px 0 80px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;filter:brightness(0.3) saturate(1.2);z-index:0}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,15,26,0.88) 0%,rgba(15,15,26,0.6) 50%,rgba(124,58,237,0.2) 100%);z-index:1}
.hero-content{position:relative;z-index:2;max-width:780px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 18px;border-radius:50px;background:rgba(124,58,237,0.2);border:1px solid rgba(124,58,237,0.3);color:var(--primary-light);font-size:0.85rem;font-weight:500;margin-bottom:20px}
.hero-badge i{font-size:0.75rem}
.hero h1{font-size:3.2rem;font-weight:800;line-height:1.2;color:var(--text-white);margin-bottom:20px;letter-spacing:-1px}
.hero h1 .highlight{background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.15rem;color:var(--text-muted);max-width:600px;margin-bottom:32px;line-height:1.8}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:48px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.06)}
.hero-stat{text-align:center}
.hero-stat h3{font-size:1.8rem;font-weight:700;color:var(--text-white)}
.hero-stat p{font-size:0.85rem;color:var(--text-dim);margin-bottom:0}
/* Features Section */
.features{background:var(--bg-section)}
.feature-card{text-align:center;padding:32px 20px}
.feature-icon{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,rgba(124,58,237,0.2),rgba(245,158,11,0.1));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:var(--primary-light);transition:var(--transition)}
.feature-card:hover .feature-icon{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;transform:scale(1.05)}
.feature-card h3{font-size:1.15rem;font-weight:600;color:var(--text-white);margin-bottom:8px}
.feature-card p{font-size:0.9rem;color:var(--text-muted);margin-bottom:0}
/* Categories Section */
.categories{background:var(--bg-dark)}
.cat-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:280px;display:flex;align-items:flex-end;padding:28px;cursor:pointer;border:1px solid var(--border-color);transition:var(--transition)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.cat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,15,26,0.92) 20%,rgba(15,15,26,0.2) 70%,transparent 100%);z-index:1}
.cat-card:hover img{transform:scale(1.08)}
.cat-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-glow)}
.cat-card-content{position:relative;z-index:2;width:100%}
.cat-card h3{font-size:1.25rem;font-weight:700;color:var(--text-white);margin-bottom:6px}
.cat-card p{font-size:0.85rem;color:var(--text-muted);margin-bottom:0}
.cat-card .tag{margin-bottom:10px;display:inline-block}
/* Latest Posts */
.latest-posts{background:var(--bg-section)}
.post-card{display:flex;flex-direction:column;gap:12px}
.post-card .post-img{width:100%;height:180px;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-card)}
.post-card .post-img img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.post-card:hover .post-img img{transform:scale(1.05)}
.post-card .post-meta{display:flex;align-items:center;gap:12px;font-size:0.8rem;color:var(--text-dim)}
.post-card .post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-dim)}
.post-card h3{font-size:1.05rem;font-weight:600;color:var(--text-white);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:var(--transition)}
.post-card:hover h3{color:var(--primary-light)}
.post-card p{font-size:0.85rem;color:var(--text-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .post-tags{display:flex;gap:6px;flex-wrap:wrap}
.post-empty{text-align:center;padding:60px 20px;color:var(--text-muted);grid-column:1/-1}
.post-empty i{font-size:2.4rem;margin-bottom:12px;display:block;color:var(--text-dim)}
/* Process / Steps */
.process{background:var(--bg-dark)}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step-item{text-align:center;padding:28px 16px;position:relative}
.step-num{width:48px;height:48px;margin:0 auto 16px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;color:#fff;position:relative;z-index:2}
.step-item h3{font-size:1rem;font-weight:600;color:var(--text-white);margin-bottom:6px}
.step-item p{font-size:0.85rem;color:var(--text-muted);margin-bottom:0}
/* FAQ */
.faq{background:var(--bg-section)}
.faq-item{border-bottom:1px solid var(--border-color);padding:20px 0;cursor:pointer}
.faq-item:first-child{padding-top:0}
.faq-question{display:flex;justify-content:space-between;align-items:center;font-size:1.05rem;font-weight:600;color:var(--text-white);gap:16px}
.faq-question i{font-size:1.2rem;color:var(--primary-light);transition:var(--transition);flex-shrink:0}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-answer{padding-top:12px;font-size:0.95rem;color:var(--text-muted);display:none;line-height:1.8}
.faq-item.active .faq-answer{display:block}
/* CTA */
.cta{position:relative;padding:100px 0;overflow:hidden}
.cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center/cover no-repeat;filter:brightness(0.2) saturate(1.2);z-index:0}
.cta-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(124,58,237,0.3),rgba(15,15,26,0.9));z-index:1}
.cta .container{position:relative;z-index:2;text-align:center}
.cta h2{font-size:2.2rem;font-weight:700;color:var(--text-white);margin-bottom:16px}
.cta p{font-size:1.05rem;color:var(--text-muted);max-width:560px;margin:0 auto 32px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* Footer */
.footer{background:var(--bg-card);border-top:1px solid var(--border-color);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .logo{margin-bottom:12px}
.footer-brand p{font-size:0.9rem;color:var(--text-muted);max-width:320px}
.footer h4{font-size:0.95rem;font-weight:600;color:var(--text-white);margin-bottom:16px}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:0.88rem;color:var(--text-dim);transition:var(--transition)}
.footer ul a:hover{color:var(--primary-light);padding-left:4px}
.footer-bottom{border-top:1px solid var(--border-color);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:0.85rem;color:var(--text-dim)}
.footer-bottom a{color:var(--text-dim)}
.footer-bottom a:hover{color:var(--primary-light)}
/* Responsive */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:2.6rem}
}
@media(max-width:768px){
  .nav-desktop{display:none}
  .bottom-tab{display:flex}
  .section{padding:56px 0}
  .hero{min-height:80vh;padding:100px 0 60px}
  .hero h1{font-size:2rem}
  .hero p{font-size:1rem}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .hero-stat h3{font-size:1.4rem}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr 1fr;gap:16px}
  .section-title{font-size:1.6rem}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta h2{font-size:1.6rem}
  .hero-actions .btn{flex:1;text-align:center;justify-content:center}
  .header-actions .btn{display:none}
}
@media(max-width:520px){
  .hero h1{font-size:1.6rem}
  .hero-stats{flex-direction:column;gap:12px}
  .hero-stat{display:flex;align-items:center;gap:12px;text-align:left}
  .hero-stat h3{font-size:1.2rem;margin-bottom:0}
  .hero-stat p{font-size:0.8rem;margin-bottom:0}
  .step-grid{grid-template-columns:1fr;gap:12px}
  .section-title{font-size:1.35rem}
  .section-sub{font-size:0.9rem;margin-bottom:28px}
  .card{padding:16px}
  .btn-lg{padding:14px 28px;font-size:0.95rem}
}

/* roulang page: article */
:root {
  --primary: #1a1a3e;
  --primary-light: #2d2d5e;
  --primary-dark: #0f0f2a;
  --accent: #f5a623;
  --accent-light: #f7b84a;
  --accent-dark: #d48f1a;
  --bg: #f5f7fa;
  --bg-card: #ffffff;
  --bg-dark: #1a1a3e;
  --text: #1a1a3e;
  --text-light: #5a5a7a;
  --text-lighter: #8a8aaa;
  --text-white: #ffffff;
  --border: #e8eaf0;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 4px 20px rgba(26, 26, 62, 0.08);
  --shadow-lg: 0 12px 40px rgba(26, 26, 62, 0.15);
  --shadow-accent: 0 4px 20px rgba(245, 166, 35, 0.35);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
  --tab-height: 64px;
}
*, *::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: 1.7; color: var(--text); background: var(--bg); padding-top: var(--header-height); padding-bottom: var(--tab-height); -webkit-font-smoothing: antialiased; }
a { color: var(--accent-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
ul, ol { list-style: none; }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }
.section-title { font-size: 28px; font-weight: 700; color: var(--text); margin-bottom: 12px; letter-spacing: -0.5px; }
.section-subtitle { font-size: 16px; color: var(--text-light); margin-bottom: 40px; max-width: 640px; line-height: 1.6; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* header */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); height: var(--header-height); }
.header-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 18px; letter-spacing: -0.3px; }
.logo:hover { color: var(--text); }
.logo-icon { width: 36px; height: 36px; background: var(--accent); color: var(--primary-dark); border-radius: var(--radius-xs); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; letter-spacing: 0; }
.nav-desktop { display: flex; gap: 32px; }
.nav-desktop a { font-size: 15px; color: var(--text-light); font-weight: 500; padding: 6px 0; border-bottom: 2px solid transparent; transition: all var(--transition); position: relative; }
.nav-desktop a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background: var(--accent); transition: width var(--transition); border-radius: 2px; }
.nav-desktop a:hover { color: var(--text); }
.nav-desktop a:hover::after { width: 100%; }
.nav-desktop a.active { color: var(--text); }
.nav-desktop a.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 600; font-size: 15px; padding: 12px 28px; border-radius: var(--radius-sm); border: none; cursor: pointer; transition: all var(--transition); font-family: var(--font); text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--primary-dark); box-shadow: var(--shadow-accent); }
.btn-primary:hover { background: var(--accent-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(245,166,35,0.45); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; color: var(--text-white); border: 2px solid rgba(255,255,255,0.3); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(245,166,35,0.1); transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 13px; border-radius: var(--radius-xs); }
.btn-lg { padding: 16px 40px; font-size: 17px; border-radius: var(--radius); }

/* mobile tab */
.mobile-tab { position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-top: 1px solid var(--border); display: none; height: var(--tab-height); padding: 0 8px; }
.mobile-tab-inner { display: flex; align-items: center; justify-content: space-around; height: 100%; max-width: 500px; margin: 0 auto; }
.mobile-tab a { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11px; color: var(--text-lighter); font-weight: 500; padding: 4px 12px; border-radius: var(--radius-xs); transition: all var(--transition); text-decoration: none; }
.mobile-tab a i { font-size: 20px; }
.mobile-tab a:hover { color: var(--text); background: var(--bg); }
.mobile-tab a.active { color: var(--accent-dark); }
.mobile-tab a.active i { color: var(--accent); }
.mobile-tab .tab-cta { background: var(--accent); color: var(--primary-dark); border-radius: 30px; padding: 4px 16px; }
.mobile-tab .tab-cta i { color: var(--primary-dark); }
.mobile-tab .tab-cta:hover { background: var(--accent-light); color: var(--primary-dark); }

/* breadcrumb */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-lighter); margin-bottom: 20px; flex-wrap: wrap; padding-top: 4px; }
.breadcrumb a { color: var(--text-light); }
.breadcrumb a:hover { color: var(--accent-dark); }
.breadcrumb .sep { color: var(--text-lighter); font-size: 12px; }

/* article hero */
.article-hero { padding: 40px 0 0; background: var(--bg-card); border-bottom: 1px solid var(--border); }
.article-hero-inner { max-width: 800px; margin: 0 auto; padding: 0 20px 32px; }
.article-category { display: inline-block; background: var(--accent); color: var(--primary-dark); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 20px; margin-bottom: 16px; letter-spacing: 0.3px; }
.article-title { font-size: 36px; font-weight: 800; color: var(--text); line-height: 1.25; letter-spacing: -0.5px; margin-bottom: 16px; }
.article-meta { display: flex; align-items: center; gap: 20px; font-size: 14px; color: var(--text-lighter); flex-wrap: wrap; }
.article-meta span { display: flex; align-items: center; gap: 6px; }
.article-meta i { font-size: 14px; }

/* article body */
.article-body-wrap { padding: 40px 0 60px; }
.article-body-inner { max-width: 800px; margin: 0 auto; padding: 0 20px; }
.article-content { font-size: 17px; line-height: 1.85; color: var(--text); }
.article-content p { margin-bottom: 20px; }
.article-content h2 { font-size: 24px; font-weight: 700; margin: 40px 0 16px; color: var(--text); letter-spacing: -0.3px; }
.article-content h3 { font-size: 20px; font-weight: 600; margin: 32px 0 12px; color: var(--text); }
.article-content ul, .article-content ol { margin-bottom: 20px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content ul li { list-style: disc; }
.article-content ol li { list-style: decimal; }
.article-content a { color: var(--accent-dark); text-decoration: underline; }
.article-content a:hover { color: var(--accent); }
.article-content blockquote { border-left: 4px solid var(--accent); background: var(--bg); padding: 16px 24px; margin: 24px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-light); font-style: italic; }
.article-content img { margin: 24px 0; border-radius: var(--radius); box-shadow: var(--shadow); }
.article-content code { background: var(--bg); padding: 2px 8px; border-radius: var(--radius-xs); font-size: 14px; color: var(--primary); }
.article-content pre { background: var(--bg-dark); color: var(--text-white); padding: 20px 24px; border-radius: var(--radius); overflow-x: auto; margin: 24px 0; font-size: 14px; line-height: 1.6; }

/* article tags */
.article-tags { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags .tag-label { font-size: 14px; color: var(--text-lighter); font-weight: 500; }
.article-tags .tag { display: inline-block; background: var(--bg); color: var(--text-light); font-size: 13px; padding: 4px 14px; border-radius: 20px; transition: all var(--transition); }
.article-tags .tag:hover { background: var(--accent); color: var(--primary-dark); }

/* article nav */
.article-nav { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-nav a { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text-light); font-weight: 500; padding: 12px 20px; background: var(--bg); border-radius: var(--radius-sm); transition: all var(--transition); flex: 1; max-width: 48%; }
.article-nav a:hover { background: var(--accent); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.article-nav .nav-next { justify-content: flex-end; text-align: right; }
.article-nav .nav-prev { justify-content: flex-start; }
.article-nav i { font-size: 16px; }

/* related posts */
.related-section { background: var(--bg-card); border-top: 1px solid var(--border); }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 8px; }
.related-card { background: var(--bg); border-radius: var(--radius); overflow: hidden; transition: all var(--transition); border: 1px solid var(--border); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.related-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 0; }
.related-card-body { padding: 16px; }
.related-card-body h4 { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 6px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-body .meta { font-size: 13px; color: var(--text-lighter); }

/* cta */
.cta-section { background: var(--bg-dark); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.1; pointer-events: none; }
.cta-inner { position: relative; z-index: 1; text-align: center; padding: 60px 0; }
.cta-inner h2 { font-size: 32px; font-weight: 700; color: var(--text-white); margin-bottom: 12px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.7); margin-bottom: 32px; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-inner .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* footer */
.footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .logo { color: var(--text-white); margin-bottom: 16px; font-size: 20px; }
.footer-brand p { font-size: 14px; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer h4 { font-size: 15px; font-weight: 600; color: var(--text-white); margin-bottom: 16px; letter-spacing: 0.3px; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { font-size: 14px; color: rgba(255,255,255,0.6); transition: all var(--transition); display: flex; align-items: center; gap: 8px; }
.footer ul a:hover { color: var(--accent); transform: translateX(4px); }
.footer ul a i { font-size: 14px; width: 18px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(255,255,255,0.5); flex-wrap: wrap; gap: 12px; }
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: var(--accent); }

/* 404 state */
.not-found-wrap { text-align: center; padding: 80px 20px; }
.not-found-wrap .icon { font-size: 64px; color: var(--text-lighter); margin-bottom: 20px; }
.not-found-wrap h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.not-found-wrap p { color: var(--text-light); margin-bottom: 24px; }
.not-found-wrap .btn { display: inline-flex; }

/* responsive */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .article-title { font-size: 30px; }
}
@media (max-width: 768px) {
  .nav-desktop { display: none; }
  .header-actions .btn-sm { display: none; }
  .mobile-tab { display: block; }
  body { padding-bottom: var(--tab-height); }
  .section { padding: 40px 0; }
  .section-title { font-size: 24px; }
  .article-hero { padding: 24px 0 0; }
  .article-hero-inner { padding-bottom: 20px; }
  .article-title { font-size: 24px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-body-wrap { padding: 24px 0 40px; }
  .article-content { font-size: 16px; }
  .article-content h2 { font-size: 20px; margin-top: 28px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cta-inner { padding: 40px 0; }
  .cta-inner h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .article-nav { flex-direction: column; }
  .article-nav a { max-width: 100%; }
  .article-nav .nav-next { justify-content: flex-start; text-align: left; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-inner { padding: 0 16px; }
  .article-title { font-size: 20px; }
  .article-content { font-size: 15px; }
  .related-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 20px; }
  .btn-lg { padding: 14px 28px; font-size: 15px; }
  .cta-inner h2 { font-size: 20px; }
  .cta-inner p { font-size: 14px; }
  .breadcrumb { font-size: 12px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
    :root {
        --c-primary: #f5a623;
        --c-primary-dark: #d4891a;
        --c-primary-light: #fde8b3;
        --c-secondary: #7c3aed;
        --c-secondary-dark: #5b21b6;
        --c-accent: #ef4444;
        --c-bg: #0b0e1a;
        --c-bg-alt: #111827;
        --c-bg-card: #1a1f2e;
        --c-bg-card-hover: #232a3d;
        --c-text: #f1f5f9;
        --c-text-secondary: #94a3b8;
        --c-text-muted: #64748b;
        --c-border: #2a3142;
        --c-border-light: #3a4155;
        --c-success: #22c55e;
        --c-warning: #eab308;
        --c-danger: #ef4444;
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
        --shadow-glow: 0 0 30px rgba(245, 166, 35, 0.15);
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        --spacing-xs: 4px;
        --spacing-sm: 8px;
        --spacing-md: 16px;
        --spacing-lg: 24px;
        --spacing-xl: 32px;
        --spacing-2xl: 48px;
        --spacing-3xl: 64px;
        --spacing-4xl: 80px;
        --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* ===== 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-sans);
        font-size: 16px;
        line-height: 1.6;
        color: var(--c-text);
        background: var(--c-bg);
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        min-height: 100vh;
        padding-bottom: 70px;
    }

    @media (min-width: 769px) {
        body {
            padding-bottom: 0;
        }
    }

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

    a:hover,
    a:focus {
        color: var(--c-primary-light);
    }

    a:focus-visible {
        outline: 2px solid var(--c-primary);
        outline-offset: 2px;
        border-radius: 4px;
    }

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

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
        border: none;
        outline: none;
        background: transparent;
        color: var(--c-text);
    }

    button {
        cursor: pointer;
    }

    ul,
    ol {
        list-style: none;
    }

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

    h1 {
        font-size: clamp(2rem, 5vw, 3.2rem);
    }
    h2 {
        font-size: clamp(1.5rem, 3.5vw, 2.4rem);
    }
    h3 {
        font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    }
    h4 {
        font-size: 1.1rem;
    }

    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 var(--spacing-lg);
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 var(--spacing-md);
        }
    }

    /* ===== Buttons ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: var(--radius-md);
        font-weight: 600;
        font-size: 0.95rem;
        transition: all var(--transition);
        border: 2px solid transparent;
        white-space: nowrap;
        line-height: 1.4;
        cursor: pointer;
        text-decoration: none;
    }

    .btn:focus-visible {
        outline: 2px solid var(--c-primary);
        outline-offset: 3px;
    }

    .btn-primary {
        background: var(--c-primary);
        color: #0b0e1a;
        border-color: var(--c-primary);
    }

    .btn-primary:hover,
    .btn-primary:focus {
        background: var(--c-primary-dark);
        border-color: var(--c-primary-dark);
        color: #0b0e1a;
        transform: translateY(-2px);
        box-shadow: var(--shadow-glow);
    }

    .btn-primary:active {
        transform: translateY(0);
        box-shadow: none;
    }

    .btn-secondary {
        background: transparent;
        color: var(--c-text);
        border-color: var(--c-border-light);
    }

    .btn-secondary:hover,
    .btn-secondary:focus {
        border-color: var(--c-primary);
        color: var(--c-primary);
        background: rgba(245, 166, 35, 0.08);
        transform: translateY(-2px);
    }

    .btn-secondary:active {
        transform: translateY(0);
    }

    .btn-accent {
        background: var(--c-accent);
        color: #fff;
        border-color: var(--c-accent);
    }

    .btn-accent:hover,
    .btn-accent:focus {
        background: #dc2626;
        border-color: #dc2626;
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 0 30px rgba(239, 68, 68, 0.3);
    }

    .btn-sm {
        padding: 8px 18px;
        font-size: 0.85rem;
        border-radius: var(--radius-sm);
    }

    .btn-lg {
        padding: 16px 36px;
        font-size: 1.1rem;
        border-radius: var(--radius-lg);
    }

    .btn-block {
        width: 100%;
    }

    .btn .fa-solid,
    .btn .fa-regular,
    .btn .fa-brands {
        font-size: 1.1em;
    }

    /* ===== Badge / Tag ===== */
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 4px 14px;
        border-radius: 50px;
        font-size: 0.8rem;
        font-weight: 600;
        background: rgba(245, 166, 35, 0.15);
        color: var(--c-primary);
        border: 1px solid rgba(245, 166, 35, 0.25);
    }

    .badge-success {
        background: rgba(34, 197, 94, 0.15);
        color: var(--c-success);
        border-color: rgba(34, 197, 94, 0.25);
    }

    .badge-danger {
        background: rgba(239, 68, 68, 0.15);
        color: var(--c-danger);
        border-color: rgba(239, 68, 68, 0.25);
    }

    .badge-warning {
        background: rgba(234, 179, 8, 0.15);
        color: var(--c-warning);
        border-color: rgba(234, 179, 8, 0.25);
    }

    /* ===== Header / Nav ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(11, 14, 26, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--c-border);
        transition: background var(--transition);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 64px;
        padding: 0 var(--spacing-lg);
        max-width: 1200px;
        margin: 0 auto;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        text-decoration: none;
        color: var(--c-text);
        flex-shrink: 0;
    }

    .logo:hover {
        color: var(--c-text);
    }

    .logo-icon {
        width: 38px;
        height: 38px;
        border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 0.85rem;
        color: #0b0e1a;
        letter-spacing: 0.5px;
        flex-shrink: 0;
    }

    .logo span {
        font-weight: 700;
        font-size: 1.1rem;
        color: var(--c-text);
        letter-spacing: 0.3px;
    }

    @media (max-width: 520px) {
        .logo span {
            font-size: 0.95rem;
        }
        .header-inner {
            padding: 0 var(--spacing-md);
        }
    }

    .nav-desktop {
        display: none;
        align-items: center;
        gap: 4px;
    }

    .nav-desktop a {
        padding: 8px 16px;
        border-radius: var(--radius-sm);
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--c-text-secondary);
        transition: all var(--transition);
        text-decoration: none;
        position: relative;
    }

    .nav-desktop a:hover {
        color: var(--c-text);
        background: rgba(255, 255, 255, 0.05);
    }

    .nav-desktop a.active {
        color: var(--c-primary);
        background: rgba(245, 166, 35, 0.1);
    }

    .nav-desktop a.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 3px;
        border-radius: 3px;
        background: var(--c-primary);
    }

    .header-actions {
        display: none;
        align-items: center;
        gap: 12px;
    }

    .header-actions .btn {
        font-size: 0.85rem;
        padding: 8px 18px;
    }

    @media (min-width: 769px) {
        .nav-desktop {
            display: flex;
        }
        .header-actions {
            display: flex;
        }
    }

    /* ===== Mobile Bottom Tab ===== */
    .mobile-tabbar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(11, 14, 26, 0.96);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-top: 1px solid var(--c-border);
        display: flex;
        align-items: center;
        justify-content: space-around;
        height: 64px;
        padding: 4px 0 env(safe-area-inset-bottom, 4px);
    }

    .mobile-tabbar a {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2px;
        text-decoration: none;
        color: var(--c-text-muted);
        font-size: 0.65rem;
        font-weight: 500;
        padding: 6px 10px;
        border-radius: var(--radius-sm);
        transition: all var(--transition);
        min-width: 56px;
    }

    .mobile-tabbar a i {
        font-size: 1.3rem;
        transition: color var(--transition);
    }

    .mobile-tabbar a:hover,
    .mobile-tabbar a:focus {
        color: var(--c-text-secondary);
    }

    .mobile-tabbar a.active {
        color: var(--c-primary);
    }

    .mobile-tabbar a.active i {
        color: var(--c-primary);
    }

    .mobile-tabbar a span {
        font-size: 0.6rem;
        line-height: 1;
    }

    @media (min-width: 769px) {
        .mobile-tabbar {
            display: none;
        }
    }

    /* ===== Hero / Banner ===== */
    .page-banner {
        position: relative;
        padding: 100px 0 60px;
        min-height: 360px;
        display: flex;
        align-items: center;
        background: var(--c-bg-alt);
        overflow: hidden;
    }

    .page-banner-bg {
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        opacity: 0.25;
        z-index: 0;
    }

    .page-banner-bg::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(11, 14, 26, 0.85), rgba(11, 14, 26, 0.4), rgba(11, 14, 26, 0.85));
        z-index: 1;
    }

    .page-banner .container {
        position: relative;
        z-index: 2;
        text-align: center;
    }

    .page-banner h1 {
        font-size: clamp(1.8rem, 4.5vw, 3rem);
        margin-bottom: 16px;
        background: linear-gradient(135deg, var(--c-primary), #fbbf24, var(--c-primary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .page-banner p {
        font-size: clamp(1rem, 2vw, 1.2rem);
        color: var(--c-text-secondary);
        max-width: 700px;
        margin: 0 auto 24px;
        line-height: 1.7;
    }

    .banner-stats {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px 40px;
        margin-top: 20px;
    }

    .banner-stat {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--c-text-secondary);
        font-size: 0.9rem;
    }

    .banner-stat i {
        color: var(--c-primary);
        font-size: 1.1rem;
    }

    .banner-stat strong {
        color: var(--c-text);
        font-weight: 700;
        font-size: 1.05rem;
    }

    .banner-countdown {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        padding: 10px 20px;
        background: rgba(239, 68, 68, 0.12);
        border: 1px solid rgba(239, 68, 68, 0.25);
        border-radius: var(--radius-md);
        margin-top: 16px;
        font-size: 0.9rem;
        color: var(--c-text-secondary);
    }

    .banner-countdown .countdown-timer {
        display: flex;
        align-items: center;
        gap: 6px;
        font-weight: 700;
        color: var(--c-danger);
        font-size: 1.1rem;
    }

    .banner-countdown .countdown-timer span {
        background: rgba(239, 68, 68, 0.2);
        padding: 2px 8px;
        border-radius: 4px;
        min-width: 28px;
        text-align: center;
    }

    /* ===== Section通用 ===== */
    .section {
        padding: var(--spacing-3xl) 0;
    }

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

    .section-header {
        text-align: center;
        margin-bottom: var(--spacing-2xl);
    }

    .section-header h2 {
        margin-bottom: 12px;
        position: relative;
        display: inline-block;
    }

    .section-header h2::after {
        content: '';
        display: block;
        width: 60px;
        height: 4px;
        background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
        border-radius: 4px;
        margin: 12px auto 0;
    }

    .section-header p {
        color: var(--c-text-secondary);
        max-width: 600px;
        margin: 12px auto 0;
        font-size: 1.05rem;
    }

    /* ===== 平台简介 ===== */
    .intro-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
    }

    .intro-content h3 {
        font-size: 1.6rem;
        margin-bottom: 16px;
    }

    .intro-content p {
        color: var(--c-text-secondary);
        margin-bottom: 16px;
        line-height: 1.8;
    }

    .intro-content ul {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-top: 16px;
    }

    .intro-content ul li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        color: var(--c-text-secondary);
        font-size: 0.95rem;
    }

    .intro-content ul li i {
        color: var(--c-success);
        font-size: 1rem;
        margin-top: 4px;
        flex-shrink: 0;
    }

    .intro-image {
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-lg);
    }

    .intro-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        min-height: 280px;
    }

    @media (max-width: 768px) {
        .intro-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .intro-image {
            order: -1;
        }
    }

    /* ===== 下载方式卡片 ===== */
    .download-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .download-card {
        background: var(--c-bg-card);
        border: 1px solid var(--c-border);
        border-radius: var(--radius-lg);
        padding: 28px 20px 24px;
        text-align: center;
        transition: all var(--transition);
        position: relative;
        overflow: hidden;
    }

    .download-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
        opacity: 0;
        transition: opacity var(--transition);
    }

    .download-card:hover {
        border-color: var(--c-border-light);
        transform: translateY(-6px);
        box-shadow: var(--shadow-md);
        background: var(--c-bg-card-hover);
    }

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

    .download-card .card-icon {
        width: 64px;
        height: 64px;
        margin: 0 auto 16px;
        border-radius: 50%;
        background: rgba(245, 166, 35, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.8rem;
        color: var(--c-primary);
    }

    .download-card h3 {
        font-size: 1.15rem;
        margin-bottom: 8px;
    }

    .download-card p {
        color: var(--c-text-secondary);
        font-size: 0.9rem;
        margin-bottom: 16px;
        line-height: 1.6;
    }

    .download-card .badge {
        margin-bottom: 16px;
    }

    .download-card .btn {
        width: 100%;
    }

    .download-card .card-cover {
        width: 100%;
        height: 140px;
        object-fit: cover;
        border-radius: var(--radius-sm);
        margin-bottom: 16px;
    }

    @media (max-width: 768px) {
        .download-grid {
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
    }

    @media (max-width: 520px) {
        .download-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .download-card {
            padding: 20px 16px;
        }
    }

    /* ===== 流程步骤 ===== */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        counter-reset: step;
    }

    .step-card {
        background: var(--c-bg-card);
        border: 1px solid var(--c-border);
        border-radius: var(--radius-lg);
        padding: 28px 20px 24px;
        text-align: center;
        transition: all var(--transition);
        position: relative;
    }

    .step-card:hover {
        border-color: var(--c-border-light);
        transform: translateY(-4px);
        box-shadow: var(--shadow-sm);
    }

    .step-number {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
        color: #0b0e1a;
        font-weight: 800;
        font-size: 1.2rem;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 14px;
        position: relative;
    }

    .step-card h4 {
        font-size: 1.05rem;
        margin-bottom: 8px;
    }

    .step-card p {
        color: var(--c-text-secondary);
        font-size: 0.88rem;
        line-height: 1.6;
    }

    .step-card .step-icon {
        font-size: 2rem;
        color: var(--c-primary);
        margin-bottom: 12px;
    }

    @media (max-width: 768px) {
        .steps-grid {
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
    }

    @media (max-width: 520px) {
        .steps-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }
    }

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

    .stat-card {
        background: var(--c-bg-card);
        border: 1px solid var(--c-border);
        border-radius: var(--radius-lg);
        padding: 28px 16px 24px;
        text-align: center;
        transition: all var(--transition);
    }

    .stat-card:hover {
        border-color: var(--c-border-light);
        transform: translateY(-4px);
        box-shadow: var(--shadow-sm);
    }

    .stat-card .stat-number {
        font-size: 2.4rem;
        font-weight: 800;
        background: linear-gradient(135deg, var(--c-primary), #fbbf24);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        line-height: 1.2;
    }

    .stat-card .stat-label {
        color: var(--c-text-secondary);
        font-size: 0.9rem;
        margin-top: 8px;
    }

    .stat-card .stat-icon {
        font-size: 1.6rem;
        color: var(--c-primary);
        margin-bottom: 12px;
    }

    @media (max-width: 768px) {
        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
    }

    @media (max-width: 520px) {
        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .stat-card .stat-number {
            font-size: 1.8rem;
        }
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .faq-item {
        background: var(--c-bg-card);
        border: 1px solid var(--c-border);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: border-color var(--transition);
    }

    .faq-item:hover {
        border-color: var(--c-border-light);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 20px;
        cursor: pointer;
        font-weight: 600;
        font-size: 0.98rem;
        color: var(--c-text);
        transition: color var(--transition);
        user-select: none;
        gap: 12px;
    }

    .faq-question i {
        color: var(--c-primary);
        font-size: 0.9rem;
        transition: transform var(--transition);
        flex-shrink: 0;
    }

    .faq-item.active .faq-question i {
        transform: rotate(180deg);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease;
        padding: 0 20px;
        color: var(--c-text-secondary);
        font-size: 0.92rem;
        line-height: 1.7;
    }

    .faq-item.active .faq-answer {
        max-height: 300px;
        padding: 0 20px 18px;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: var(--c-bg-alt);
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        opacity: 0.08;
        z-index: 0;
    }

    .cta-section .container {
        position: relative;
        z-index: 1;
        text-align: center;
        padding: var(--spacing-3xl) var(--spacing-lg);
    }

    .cta-section h2 {
        font-size: clamp(1.6rem, 3.5vw, 2.4rem);
        margin-bottom: 16px;
    }

    .cta-section p {
        color: var(--c-text-secondary);
        max-width: 600px;
        margin: 0 auto 28px;
        font-size: 1.05rem;
    }

    .cta-section .btn-group {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    /* ===== 相关内容 ===== */
    .related-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .related-card {
        background: var(--c-bg-card);
        border: 1px solid var(--c-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: all var(--transition);
    }

    .related-card:hover {
        border-color: var(--c-border-light);
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
    }

    .related-card img {
        width: 100%;
        height: 180px;
        object-fit: cover;
        border-radius: 0;
    }

    .related-card .card-body {
        padding: 18px 20px 20px;
    }

    .related-card .card-body h4 {
        font-size: 1.05rem;
        margin-bottom: 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .related-card .card-body p {
        color: var(--c-text-secondary);
        font-size: 0.88rem;
        line-height: 1.6;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .related-card .card-body .badge {
        margin-bottom: 10px;
    }

    @media (max-width: 768px) {
        .related-grid {
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
    }

    @media (max-width: 520px) {
        .related-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }
    }

    /* ===== Footer ===== */
    .footer {
        background: var(--c-bg-alt);
        border-top: 1px solid var(--c-border);
        padding: var(--spacing-3xl) 0 var(--spacing-xl);
        margin-bottom: 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
        gap: 32px;
        margin-bottom: var(--spacing-xl);
    }

    .footer-brand .logo {
        margin-bottom: 12px;
    }

    .footer-brand p {
        color: var(--c-text-muted);
        font-size: 0.9rem;
        line-height: 1.7;
        margin-top: 8px;
    }

    .footer h4 {
        font-size: 0.95rem;
        color: var(--c-text);
        margin-bottom: 16px;
        font-weight: 600;
    }

    .footer ul {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .footer ul li a {
        color: var(--c-text-muted);
        font-size: 0.88rem;
        transition: color var(--transition);
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .footer ul li a:hover {
        color: var(--c-primary);
    }

    .footer ul li a i {
        font-size: 0.85rem;
        color: var(--c-primary);
        width: 16px;
    }

    .footer-bottom {
        border-top: 1px solid var(--c-border);
        padding-top: var(--spacing-lg);
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
        font-size: 0.85rem;
        color: var(--c-text-muted);
    }

    .footer-bottom a {
        color: var(--c-text-muted);
        text-decoration: none;
    }

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

    @media (max-width: 768px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .footer-brand {
            grid-column: 1 / -1;
        }
    }

    @media (max-width: 520px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }

    /* ===== Breadcrumb ===== */
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 16px 0 0;
        font-size: 0.85rem;
        color: var(--c-text-muted);
        flex-wrap: wrap;
    }

    .breadcrumb a {
        color: var(--c-text-muted);
        text-decoration: none;
        transition: color var(--transition);
    }

    .breadcrumb a:hover {
        color: var(--c-primary);
    }

    .breadcrumb span {
        color: var(--c-text-secondary);
    }

    .breadcrumb .sep {
        color: var(--c-text-muted);
        font-size: 0.7rem;
    }

    /* ===== Live Status Bar ===== */
    .live-status {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        gap: 24px 40px;
        padding: 14px 20px;
        background: rgba(245, 166, 35, 0.06);
        border: 1px solid rgba(245, 166, 35, 0.15);
        border-radius: var(--radius-md);
        margin-top: 20px;
    }

    .live-status .status-item {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.88rem;
        color: var(--c-text-secondary);
    }

    .live-status .status-item .dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--c-success);
        animation: pulse-dot 1.8s infinite;
    }

    .live-status .status-item .dot.warning {
        background: var(--c-warning);
    }

    .live-status .status-item strong {
        color: var(--c-text);
        font-weight: 700;
    }

    @keyframes pulse-dot {
        0%,
        100% {
            opacity: 1;
            transform: scale(1);
        }
        50% {
            opacity: 0.5;
            transform: scale(1.3);
        }
    }

    /* ===== 辅助 ===== */
    .text-center {
        text-align: center;
    }

    .mt-lg {
        margin-top: var(--spacing-lg);
    }
    .mt-xl {
        margin-top: var(--spacing-xl);
    }
    .mt-2xl {
        margin-top: var(--spacing-2xl);
    }

    .gap-sm {
        gap: 8px;
    }
    .gap-md {
        gap: 16px;
    }

    /* ===== 响应式微调 ===== */
    @media (max-width: 768px) {
        .section {
            padding: var(--spacing-2xl) 0;
        }
        .page-banner {
            padding: 80px 0 40px;
            min-height: 300px;
        }
    }

    @media (max-width: 520px) {
        .section-header h2 {
            font-size: 1.4rem;
        }
        .page-banner h1 {
            font-size: 1.6rem;
        }
        .banner-stats {
            gap: 12px 20px;
        }
        .banner-stat {
            font-size: 0.8rem;
        }
        .live-status {
            gap: 12px 20px;
            padding: 12px 16px;
        }
        .live-status .status-item {
            font-size: 0.78rem;
        }
    }