/* roulang page: index */
:root {
  --primary: #0b1a30;
  --primary-light: #13294b;
  --primary-dark: #070f1a;
  --accent: #e8b830;
  --accent-hover: #d4a520;
  --accent-light: #f5d84e;
  --accent-gradient: linear-gradient(135deg, #e8b830 0%, #f5d84e 100%);
  --cta: #dc2626;
  --cta-hover: #b91c1c;
  --cta-gradient: linear-gradient(135deg, #dc2626 0%, #ef4444 100%);
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --bg-dark: #0f172a;
  --bg-section: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-white: #ffffff;
  --text-accent: #e8b830;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-accent: 0 4px 20px rgba(232,184,48,0.3);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --container-width: 1200px;
  --container-padding: 24px;
  --header-height: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-family);background:var(--bg-light);color:var(--text-primary);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{cursor:pointer;font-family:inherit;border:none;background:none}
input,textarea{font-family:inherit;outline:none;box-sizing:border-box}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{line-height:1.25;font-weight:700;color:var(--text-primary)}
.container{width:100%;max-width:var(--container-width);margin:0 auto;padding:0 var(--container-padding)}
.section{padding:80px 0}
.section-dark{background:var(--bg-dark);color:var(--text-white)}
.section-dark .section-title,.section-dark .section-subtitle{color:var(--text-white)}
.section-light{background:var(--bg-section)}
.section-white{background:var(--bg-white)}
.section-title{font-size:2.2rem;font-weight:800;margin-bottom:8px;letter-spacing:-0.5px;color:var(--text-primary)}
.section-subtitle{font-size:1.05rem;color:var(--text-secondary);margin-bottom:48px;max-width:640px;line-height:1.6}
.section-header{text-align:center;margin-bottom:48px}
.section-header .section-subtitle{margin-left:auto;margin-right:auto}
.text-accent{color:var(--text-accent)}
.text-center{text-align:center}
.text-muted{color:var(--text-muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-size:0.95rem;font-weight:600;border-radius:var(--radius-md);transition:var(--transition);letter-spacing:0.3px;position:relative;overflow:hidden}
.btn-primary{background:var(--accent-gradient);color:var(--primary);box-shadow:var(--shadow-accent)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(232,184,48,0.4)}
.btn-cta{background:var(--cta-gradient);color:var(--text-white);box-shadow:0 4px 20px rgba(220,38,38,0.3)}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(220,38,38,0.4)}
.btn-outline{border:2px solid var(--accent);color:var(--accent);background:transparent}
.btn-outline:hover{background:var(--accent);color:var(--primary);transform:translateY(-2px)}
.btn-white{border:2px solid rgba(255,255,255,0.4);color:var(--text-white);background:rgba(255,255,255,0.1);backdrop-filter:blur(10px)}
.btn-white:hover{background:var(--text-white);color:var(--primary);border-color:var(--text-white);transform:translateY(-2px)}
.btn-lg{padding:16px 36px;font-size:1.05rem;border-radius:var(--radius-lg)}
.card{background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);border:1px solid var(--border-light)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.card-img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.card-body{padding:24px}
.card-title{font-size:1.15rem;font-weight:700;margin-bottom:8px;line-height:1.4}
.card-text{font-size:0.9rem;color:var(--text-secondary);line-height:1.6}
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;font-size:0.75rem;font-weight:600;border-radius:100px;background:var(--accent);color:var(--primary)}
.badge-sm{padding:2px 10px;font-size:0.7rem}
.badge-outline{border:1px solid var(--accent);background:transparent;color:var(--accent)}
.tag{display:inline-block;padding:4px 14px;font-size:0.8rem;font-weight:500;border-radius:100px;background:var(--bg-section);color:var(--text-secondary);transition:var(--transition)}
.tag:hover{background:var(--accent);color:var(--primary)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flex-center{display:flex;align-items:center;justify-content:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-20{gap:20px}.gap-24{gap:24px}.gap-32{gap:32px}
.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}
.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}.mb-48{margin-bottom:48px}
/* ===== Header ===== */
.header{position:fixed;top:0;left:0;width:100%;height:var(--header-height);background:rgba(11,26,48,0.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:1000;border-bottom:1px solid rgba(255,255,255,0.06);transition:var(--transition)}
.header.scrolled{background:rgba(11,26,48,0.98);box-shadow:0 4px 30px rgba(0,0,0,0.3)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--text-white);letter-spacing:-0.3px}
.logo-icon{width:36px;height:36px;background:var(--accent-gradient);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:var(--primary);font-weight:900}
.logo span{color:var(--accent)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:8px 18px;font-size:0.9rem;font-weight:500;color:rgba(255,255,255,0.75);border-radius:var(--radius-sm);transition:var(--transition);position:relative}
.nav a:hover,.nav a.active{color:var(--text-white);background:rgba(232,184,48,0.12)}
.nav a.active{color:var(--accent);font-weight:600}
.nav a.active::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--accent);border-radius:2px}
.nav-cta{padding:8px 20px!important;background:var(--accent-gradient)!important;color:var(--primary)!important;font-weight:700!important;border-radius:var(--radius-md)!important}
.nav-cta:hover{box-shadow:var(--shadow-accent);transform:translateY(-1px)!important}
.mobile-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;color:var(--text-white);font-size:1.4rem;cursor:pointer;border-radius:var(--radius-sm);transition:var(--transition)}
.mobile-toggle:hover{background:rgba(255,255,255,0.08)}
/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding-top:var(--header-height);background:var(--bg-dark);overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center center/cover no-repeat;opacity:0.35;z-index:0;transform:scale(1.05);animation:heroScale 20s ease-in-out infinite alternate}
@keyframes heroScale{0%{transform:scale(1.05)}100%{transform:scale(1)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,26,48,0.92) 0%,rgba(11,26,48,0.7) 50%,rgba(11,26,48,0.88) 100%);z-index:1}
.hero-stars{position:absolute;inset:0;z-index:1;overflow:hidden;pointer-events:none}
.hero-stars::before{content:'';position:absolute;width:2px;height:2px;background:var(--text-white);border-radius:50%;box-shadow:50px 80px 0 1px rgba(255,255,255,0.4),120px 200px 0 0 rgba(255,255,255,0.3),300px 150px 0 1px rgba(255,255,255,0.5),450px 300px 0 0 rgba(255,255,255,0.2),600px 100px 0 1px rgba(255,255,255,0.4),200px 400px 0 1px rgba(255,255,255,0.3),700px 350px 0 0 rgba(255,255,255,0.5),850px 200px 0 1px rgba(255,255,255,0.2),100px 500px 0 0 rgba(255,255,255,0.4),550px 450px 0 1px rgba(255,255,255,0.3),400px 600px 0 0 rgba(255,255,255,0.2),750px 550px 0 1px rgba(255,255,255,0.5),250px 700px 0 0 rgba(255,255,255,0.3),900px 650px 0 1px rgba(255,255,255,0.4),150px 800px 0 0 rgba(255,255,255,0.2);animation:twinkle 4s ease-in-out infinite alternate}
@keyframes twinkle{0%{opacity:0.3}100%{opacity:1}}
.hero-content{position:relative;z-index:2;max-width:780px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;background:rgba(232,184,48,0.15);border:1px solid rgba(232,184,48,0.25);border-radius:100px;font-size:0.85rem;font-weight:500;color:var(--accent);margin-bottom:24px;backdrop-filter:blur(10px)}
.hero-badge i{font-size:0.75rem}
.hero h1{font-size:3.5rem;font-weight:900;color:var(--text-white);line-height:1.1;letter-spacing:-1px;margin-bottom:20px}
.hero h1 span{background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.2rem;color:rgba(255,255,255,0.7);max-width:600px;line-height:1.7;margin-bottom:36px}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:56px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.08)}
.hero-stat h3{font-size:2rem;font-weight:900;color:var(--accent);line-height:1}
.hero-stat p{font-size:0.85rem;color:rgba(255,255,255,0.5);margin-top:6px;margin-bottom:0}
/* ===== Features ===== */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--bg-white);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;border:1px solid var(--border-light);transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.feature-icon{width:60px;height:60px;border-radius:var(--radius-md);background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--primary);margin:0 auto 18px}
.feature-card h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}
.feature-card p{font-size:0.88rem;color:var(--text-secondary);line-height:1.6}
/* ===== Categories ===== */
.cat-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;display:flex;align-items:flex-end;cursor:pointer;transition:var(--transition)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-xl)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition-slow)}
.cat-card:hover img{transform:scale(1.08)}
.cat-card-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(11,26,48,0.85) 0%,rgba(11,26,48,0.2) 60%,rgba(11,26,48,0.05) 100%);z-index:1}
.cat-card-body{position:relative;z-index:2;padding:24px;width:100%}
.cat-card-body h3{font-size:1.3rem;font-weight:700;color:var(--text-white);margin-bottom:4px}
.cat-card-body p{font-size:0.85rem;color:rgba(255,255,255,0.7)}
.cat-tag{position:absolute;top:16px;right:16px;z-index:2;background:rgba(232,184,48,0.9);color:var(--primary);padding:4px 14px;border-radius:100px;font-size:0.75rem;font-weight:600;backdrop-filter:blur(10px)}
/* ===== Latest Posts ===== */
.post-card{display:flex;gap:20px;background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-light);transition:var(--transition)}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:transparent}
.post-card-img{width:200px;min-height:150px;flex-shrink:0;object-fit:cover}
.post-card-body{padding:20px 20px 20px 0;flex:1;display:flex;flex-direction:column;justify-content:center}
.post-card-body .badge{margin-bottom:10px}
.post-card-body h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;line-height:1.4}
.post-card-body h3 a{color:var(--text-primary)}
.post-card-body h3 a:hover{color:var(--accent)}
.post-card-body p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6;margin-bottom:12px}
.post-meta{display:flex;align-items:center;gap:16px;font-size:0.8rem;color:var(--text-muted)}
.post-meta i{width:14px;text-align:center}
/* ===== Stats ===== */
.stats-section{position:relative;background:var(--bg-dark);overflow:hidden}
.stats-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center center/cover no-repeat;opacity:0.1;z-index:0}
.stats-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.stat-item{padding:32px 16px}
.stat-number{font-size:3rem;font-weight:900;color:var(--accent);line-height:1;margin-bottom:8px;letter-spacing:-1px}
.stat-label{font-size:0.95rem;color:rgba(255,255,255,0.6)}
.stat-divider{width:40px;height:3px;background:var(--accent);margin:12px auto;border-radius:2px}
/* ===== Process ===== */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.process-grid::before{content:'';position:absolute;top:40px;left:15%;right:15%;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent) 70%,transparent);z-index:0}
.process-step{text-align:center;position:relative;z-index:1}
.step-number{width:80px;height:80px;border-radius:50%;background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;font-size:1.8rem;font-weight:900;color:var(--primary);margin:0 auto 20px;box-shadow:var(--shadow-accent)}
.process-step h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}
.process-step p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6;max-width:200px;margin:0 auto}
/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition);background:var(--bg-white)}
.faq-item.active{border-color:var(--accent);box-shadow:var(--shadow-sm)}
.faq-question{padding:18px 24px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-weight:600;font-size:0.98rem;color:var(--text-primary);transition:var(--transition);gap:16px}
.faq-question:hover{background:var(--bg-section)}
.faq-question i{font-size:0.85rem;color:var(--text-muted);transition:var(--transition);flex-shrink:0}
.faq-item.active .faq-question i{transform:rotate(180deg);color:var(--accent)}
.faq-answer{padding:0 24px 18px;font-size:0.9rem;color:var(--text-secondary);line-height:1.7;display:none}
.faq-item.active .faq-answer{display:block}
/* ===== CTA ===== */
.cta-section{position:relative;background:var(--bg-dark);overflow:hidden;padding:100px 0}
.cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center center/cover no-repeat;opacity:0.12;z-index:0}
.cta-content{position:relative;z-index:1;text-align:center;max-width:680px;margin:0 auto}
.cta-content h2{font-size:2.4rem;font-weight:900;color:var(--text-white);margin-bottom:16px;letter-spacing:-0.5px}
.cta-content p{font-size:1.1rem;color:rgba(255,255,255,0.65);margin-bottom:36px;line-height:1.7}
.cta-actions{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
/* ===== Footer ===== */
.footer{background:var(--primary-dark);color:rgba(255,255,255,0.6);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.06)}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:0.88rem;line-height:1.7;max-width:320px}
.footer-socials{display:flex;gap:12px;margin-top:20px}
.footer-socials a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,0.1);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,0.5);transition:var(--transition);font-size:0.9rem}
.footer-socials a:hover{background:var(--accent);color:var(--primary);border-color:var(--accent)}
.footer h4{font-size:1rem;font-weight:700;color:var(--text-white);margin-bottom:18px}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:0.88rem;color:rgba(255,255,255,0.5);transition:var(--transition)}
.footer ul a:hover{color:var(--accent);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:0.88rem;color:rgba(255,255,255,0.5);margin-bottom:14px}
.footer-contact i{color:var(--accent);margin-top:3px;width:16px;text-align:center}
.footer-bottom{padding:20px 0;text-align:center;font-size:0.82rem;color:rgba(255,255,255,0.35)}
/* ===== Empty State ===== */
.empty-state{text-align:center;padding:48px 24px;background:var(--bg-section);border-radius:var(--radius-lg);border:1px dashed var(--border)}
.empty-state i{font-size:2.5rem;color:var(--text-muted);margin-bottom:16px}
.empty-state p{font-size:0.95rem;color:var(--text-secondary)}
/* ===== Responsive ===== */
@media(max-width:1024px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero h1{font-size:2.8rem}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .section-title{font-size:1.6rem}
  .section-subtitle{font-size:0.95rem;margin-bottom:32px}
  .nav{display:none;position:fixed;top:var(--header-height);left:0;width:100%;background:rgba(11,26,48,0.98);backdrop-filter:blur(20px);flex-direction:column;padding:16px 24px;gap:4px;border-bottom:1px solid rgba(255,255,255,0.06)}
  .nav.open{display:flex}
  .nav a{padding:12px 16px;width:100%;font-size:0.95rem;border-radius:var(--radius-sm)}
  .nav a.active::after{display:none}
  .nav-cta{margin-top:8px;text-align:center}
  .mobile-toggle{display:flex}
  .hero{min-height:85vh}
  .hero h1{font-size:2rem}
  .hero p{font-size:1rem}
  .hero-stats{flex-wrap:wrap;gap:24px}
  .hero-stat h3{font-size:1.5rem}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr 1fr;gap:16px}
  .feature-card{padding:24px 16px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-number{font-size:2.2rem}
  .process-grid{grid-template-columns:1fr 1fr;gap:20px}
  .process-step .step-number{width:60px;height:60px;font-size:1.4rem}
  .post-card{flex-direction:column}
  .post-card-img{width:100%;height:180px}
  .post-card-body{padding:16px}
  .cta-content h2{font-size:1.6rem}
  .cta-content p{font-size:0.95rem}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
}
@media(max-width:520px){
  .features-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:12px}
  .process-grid{grid-template-columns:1fr;gap:28px}
  .hero h1{font-size:1.6rem}
  .hero-stats{gap:16px}
  .container{padding:0 16px}
  .section{padding:40px 0}
  .footer-grid{gap:24px}
}
/* ===== Accessibility ===== */
a:focus-visible,.btn:focus-visible,input:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius-sm)}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important}}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --bg-section: #f1f5f9;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-white: #ffffff;
            --text-dark: #0f172a;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.14);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::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: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.5px;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 18px;
        }
        .logo span {
            color: var(--accent);
            font-weight: 700;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.06);
        }
        .nav a.active {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.08);
            font-weight: 600;
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }
        .nav a.nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            color: #fff;
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
        }
        .nav a.nav-cta i {
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        @media (max-width: 768px) {
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                gap: 6px;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav a.nav-cta {
                text-align: center;
                margin-top: 6px;
            }
            .nav a.active::after {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
        }

        /* ===== Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 72px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-body), transparent);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-bottom: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
        }
        .page-banner .breadcrumb a:hover {
            color: var(--accent-light);
        }
        .page-banner .breadcrumb span {
            color: rgba(255, 255, 255, 0.5);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 56px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .page-banner p {
                font-size: 14px;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 72px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-title .title-tag {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-dark);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title h2 {
                font-size: 26px;
            }
            .section-title p {
                font-size: 14px;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }

        /* ===== 分类卡片网格 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 20px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: default;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .category-card .icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, rgba(26, 42, 108, 0.06), rgba(245, 158, 11, 0.06));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            transition: var(--transition);
        }
        .category-card:hover .icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            transform: scale(1.05);
        }
        .category-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .category-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .category-card .badge {
            display: inline-block;
            margin-top: 12px;
            padding: 2px 12px;
            background: rgba(245, 158, 11, 0.1);
            color: var(--accent-dark);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
        }
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .category-card {
                padding: 24px 16px 20px;
            }
            .category-card .icon {
                width: 52px;
                height: 52px;
                font-size: 22px;
            }
            .category-card h3 {
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .category-card {
                padding: 18px 12px 16px;
            }
            .category-card .icon {
                width: 44px;
                height: 44px;
                font-size: 18px;
                margin-bottom: 12px;
            }
            .category-card h3 {
                font-size: 14px;
            }
            .category-card p {
                font-size: 12px;
            }
        }

        /* ===== 赛事列表 ===== */
        .event-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .event-card {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            align-items: flex-start;
        }
        .event-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        .event-card .cover {
            flex-shrink: 0;
            width: 140px;
            height: 100px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-section);
        }
        .event-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .event-card:hover .cover img {
            transform: scale(1.05);
        }
        .event-card .info {
            flex: 1;
            min-width: 0;
        }
        .event-card .info .tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(26, 42, 108, 0.08);
            color: var(--primary);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .event-card .info h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .event-card .info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .event-card .info .meta {
            display: flex;
            gap: 16px;
            margin-top: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .event-card .info .meta i {
            margin-right: 4px;
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .event-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .event-card {
                flex-direction: column;
                padding: 16px;
            }
            .event-card .cover {
                width: 100%;
                height: 180px;
            }
            .event-card .info h3 {
                font-size: 16px;
            }
            .event-card .info p {
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .event-card .cover {
                height: 140px;
            }
            .event-card .info h3 {
                font-size: 15px;
            }
            .event-card .info .meta {
                flex-wrap: wrap;
                gap: 8px;
                font-size: 12px;
            }
        }

        /* ===== 指南步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-card {
                padding: 24px 16px;
            }
            .step-card h3 {
                font-size: 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        @media (max-width: 768px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.3);
        }
        .cta-section .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(245, 158, 11, 0.4);
            color: #fff;
        }
        .cta-section .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.3);
            transition: var(--transition);
        }
        .cta-section .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .cta-section .btn-primary,
            .cta-section .btn-outline {
                padding: 12px 28px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 热门标签 ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 16px;
        }
        .tags-cloud a {
            display: inline-block;
            padding: 6px 18px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .tags-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        @media (max-width: 768px) {
            .tags-cloud a {
                font-size: 13px;
                padding: 5px 14px;
            }
        }

        /* ===== 特色板块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .feature-card .f-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .feature-card {
                padding: 24px 16px;
            }
            .feature-card h3 {
                font-size: 16px;
            }
        }
        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 统计数字 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .stat-item .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .num span {
            color: var(--accent);
        }
        .stat-item .label {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .num {
                font-size: 32px;
            }
            .stat-item {
                padding: 24px 12px;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .num {
                font-size: 28px;
            }
            .stat-item .label {
                font-size: 13px;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .footer-brand .logo span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-socials {
            display: flex;
            gap: 14px;
            margin-top: 20px;
        }
        .footer-socials a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            transition: var(--transition);
            text-decoration: none;
        }
        .footer-socials a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }
        .footer-contact li i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }
        @media (max-width: 768px) {
            .footer {
                padding: 40px 0 0;
            }
            .footer .container {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1;
            }
            .footer h4 {
                margin-bottom: 14px;
            }
            .footer-bottom {
                padding: 18px 0;
                font-size: 12px;
            }
        }

        /* ===== 响应式辅助 ===== */
        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 12px;
            }
        }

        /* ===== 淡入动画 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --secondary: #e84c3d;
            --secondary-light: #f06a5a;
            --secondary-dark: #c0392b;
            --accent: #f39c12;
            --accent-light: #f5b041;
            --bg-body: #f5f7fb;
            --bg-white: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-card: #ffffff;
            --bg-footer: #0f1a2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #7a7a9a;
            --text-white: #ffffff;
            --text-light: #c0c0d0;
            --border-color: #e0e4ec;
            --border-light: #f0f2f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 42, 108, 0.10);
            --shadow-lg: 0 20px 60px rgba(26, 42, 108, 0.15);
            --shadow-hover: 0 16px 48px rgba(232, 76, 61, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 26, 46, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: var(--header-height);
            transition: var(--transition);
        }
        .header.scrolled { background: rgba(15, 26, 46, 0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
        }
        .logo:hover { color: var(--text-white); }
        .logo .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.2rem;
        }
        .logo span { color: var(--accent); font-weight: 700; }
        .nav { display: flex; align-items: center; gap: 8px; }
        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover { color: var(--text-white); background: rgba(255,255,255,0.08); }
        .nav a.active {
            color: var(--text-white);
            background: rgba(232, 76, 61, 0.2);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--text-white);
            padding: 8px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(232, 76, 61, 0.3);
        }
        .nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 76, 61, 0.4);
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
        }
        .nav a.nav-cta i { margin-right: 6px; }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: transparent;
            border: none;
        }
        .hamburger span {
            width: 28px;
            height: 3px;
            background: var(--text-white);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

        /* ===== Article Hero ===== */
        .article-hero {
            padding-top: calc(var(--header-height) + 40px);
            padding-bottom: 40px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a4a 100%);
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .article-hero .breadcrumb a { color: var(--accent); }
        .article-hero .breadcrumb a:hover { color: var(--secondary-light); }
        .article-hero .breadcrumb i { font-size: 0.7rem; color: var(--text-muted); }
        .article-hero .meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .article-hero .meta .badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(232, 76, 61, 0.2);
            color: var(--secondary-light);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .article-hero .meta .date {
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .article-hero .meta .date i { margin-right: 6px; }
        .article-hero h1 {
            font-size: 2.6rem;
            color: var(--text-white);
            max-width: 800px;
            line-height: 1.25;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .article-hero .excerpt {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.7;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 60px 0 80px;
            background: var(--bg-body);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-content {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .article-content .featured-image {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-content .content-body p { margin-bottom: 1.4rem; }
        .article-content .content-body h2,
        .article-content .content-body h3 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .article-content .content-body h2 { font-size: 1.6rem; }
        .article-content .content-body h3 { font-size: 1.3rem; }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin: 1.2rem 0;
            padding-left: 1.8rem;
            color: var(--text-secondary);
        }
        .article-content .content-body ul { list-style: disc; }
        .article-content .content-body ol { list-style: decimal; }
        .article-content .content-body li { margin-bottom: 0.6rem; }
        .article-content .content-body a { color: var(--secondary); font-weight: 500; border-bottom: 1px solid transparent; }
        .article-content .content-body a:hover { border-bottom-color: var(--secondary); }
        .article-content .content-body blockquote {
            margin: 1.8rem 0;
            padding: 20px 28px;
            border-left: 4px solid var(--secondary);
            background: rgba(232, 76, 61, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-content .content-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body code {
            background: #f0f2f8;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--secondary-dark);
        }
        .article-footer-meta {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-footer-meta .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-footer-meta .tags a {
            display: inline-block;
            padding: 4px 14px;
            background: var(--bg-body);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-footer-meta .tags a:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .article-footer-meta .share {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .article-footer-meta .share span { font-size: 0.9rem; color: var(--text-muted); }
        .article-footer-meta .share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-body);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-footer-meta .share a:hover {
            background: var(--secondary);
            color: var(--text-white);
            border-color: var(--secondary);
            transform: translateY(-2px);
        }

        /* ===== Article Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i { color: var(--secondary); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list li a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.5;
        }
        .sidebar-list li a:hover { color: var(--secondary); }
        .sidebar-list li a .num {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg-body);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
        }
        .sidebar-list li a:hover .num { background: var(--secondary); color: #fff; }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: var(--text-white);
            text-align: center;
        }
        .sidebar-cta h3 { color: var(--text-white); border-bottom-color: var(--accent); }
        .sidebar-cta h3 i { color: var(--accent); }
        .sidebar-cta p { color: var(--text-light); font-size: 0.95rem; margin-bottom: 20px; }
        .sidebar-cta .btn {
            display: inline-block;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--text-white);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 4px 20px rgba(232, 76, 61, 0.3);
            transition: var(--transition);
        }
        .sidebar-cta .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(232, 76, 61, 0.4);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-white);
        }
        .related-section .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }
        .related-section .section-header h2 {
            font-size: 1.6rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-section .section-header h2 i { color: var(--secondary); }
        .related-section .section-header a {
            font-size: 0.95rem;
            color: var(--secondary);
            font-weight: 500;
        }
        .related-section .section-header a:hover { color: var(--primary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 20px 24px 24px;
        }
        .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 {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .related-card .card-body .meta .badge-sm {
            padding: 2px 12px;
            background: rgba(232, 76, 61, 0.1);
            color: var(--secondary);
            border-radius: 12px;
            font-size: 0.8rem;
        }

        /* ===== Error State ===== */
        .error-state {
            text-align: center;
            padding: 80px 24px;
        }
        .error-state i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .error-state h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .error-state p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .error-state .btn {
            display: inline-block;
            padding: 12px 36px;
            background: var(--primary);
            color: var(--text-white);
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: var(--transition);
        }
        .error-state .btn:hover { background: var(--primary-light); transform: translateY(-2px); }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a4a 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-primary {
            display: inline-block;
            padding: 14px 40px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--text-white);
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 4px 24px rgba(232, 76, 61, 0.3);
            transition: var(--transition);
        }
        .cta-section .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(232, 76, 61, 0.4);
        }
        .cta-section .btn-outline {
            display: inline-block;
            padding: 14px 40px;
            background: transparent;
            color: var(--text-white);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid rgba(255,255,255,0.3);
            transition: var(--transition);
        }
        .cta-section .btn-outline:hover {
            border-color: var(--accent);
            background: rgba(255,255,255,0.05);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-footer);
            color: var(--text-light);
            padding: 60px 0 0;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer .footer-brand .logo {
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .footer .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .footer .footer-socials {
            display: flex;
            gap: 12px;
        }
        .footer .footer-socials a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: var(--text-light);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer .footer-socials a:hover {
            background: var(--secondary);
            color: var(--text-white);
            transform: translateY(-3px);
        }
        .footer h4 {
            font-size: 1.1rem;
            color: var(--text-white);
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer ul li { margin-bottom: 10px; }
        .footer ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer ul li a:hover { color: var(--accent); padding-left: 4px; }
        .footer .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer .footer-contact li i {
            width: 18px;
            color: var(--accent);
        }
        .footer .footer-bottom {
            text-align: center;
            padding: 24px 0;
            margin-top: 0;
        }
        .footer .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .hamburger { display: flex; }
            .nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid rgba(255,255,255,0.06);
                box-shadow: 0 20px 60px rgba(0,0,0,0.4);
            }
            .nav.open { transform: translateY(0); opacity: 1; }
            .nav a { width: 100%; padding: 12px 18px; font-size: 1rem; }
            .nav a.active::after { display: none; }
            .nav a.nav-cta { text-align: center; margin-top: 8px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-content { padding: 24px; }
            .article-hero { padding-top: calc(var(--header-height) + 24px); padding-bottom: 24px; }
            .article-main { padding: 40px 0 60px; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-section h2 { font-size: 1.6rem; }
            .footer .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .article-footer-meta { flex-direction: column; align-items: flex-start; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-content { padding: 16px; }
            .article-content .content-body { font-size: 0.98rem; }
            .cta-section .btn-group { flex-direction: column; width: 100%; }
            .cta-section .btn-primary,
            .cta-section .btn-outline { width: 100%; text-align: center; }
        }

        /* ===== Accessibility ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }