*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0f0f1a;--bg2:#1a1a2e;--bg3:#252540;
  --text:#e8e8f0;--text2:#a0a0b8;--accent:#ff6b35;
  --accent2:#e84393;--gold:#d4af37;--border:#2e2e4a;
  --radius:12px;--shadow:0 4px 24px rgba(0,0,0,.4);
  --max:1200px;--header-h:64px
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent2)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(15,15,26,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);height:var(--header-h)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:var(--text)}
.logo img{width:40px;height:40px;border-radius:10px}
.nav-desktop{display:flex;gap:28px}
.nav-desktop a{color:var(--text2);font-size:.95rem;font-weight:500}
.nav-desktop a:hover,.nav-desktop a.active{color:var(--accent)}
.menu-toggle{display:none;background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer;padding:8px}

/* Hero */
.hero{padding:60px 0 40px;background:linear-gradient(135deg,var(--bg2) 0%,var(--bg) 60%)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero h1{font-size:2.2rem;line-height:1.3;margin-bottom:16px;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{color:var(--text2);font-size:1.05rem;margin-bottom:24px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:50px;font-weight:600;font-size:.95rem;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 4px 16px rgba(255,107,53,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(255,107,53,.4);color:#fff}
.btn-outline{background:transparent;color:var(--text);border:2px solid var(--border)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.hero-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}

/* Sections */
section{padding:56px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.8rem;margin-bottom:10px}
.section-title p{color:var(--text2);max-width:600px;margin:0 auto}
.section-title .line{width:60px;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent2));margin:12px auto 0;border-radius:2px}

/* Features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .2s,border-color .2s}
.feature-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.feature-icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,rgba(255,107,53,.15),rgba(232,67,147,.15));display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:16px}
.feature-card h3{font-size:1.1rem;margin-bottom:8px}
.feature-card p{color:var(--text2);font-size:.9rem}

/* Category */
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.category-item{background:var(--bg2);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);transition:transform .2s}
.category-item:hover{transform:translateY(-3px)}
.category-item img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top}
.category-item .cat-info{padding:14px}
.category-item h3{font-size:.95rem;margin-bottom:4px}
.category-item p{color:var(--text2);font-size:.8rem}

/* Content blocks */
.content-block{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin-bottom:48px}
.content-block.reverse{direction:rtl}
.content-block.reverse>*{direction:ltr}
.content-block img{border-radius:var(--radius);box-shadow:var(--shadow)}
.content-block h3{font-size:1.4rem;margin-bottom:12px;color:var(--accent)}
.content-block p{color:var(--text2);margin-bottom:12px;font-size:.95rem}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{text-align:center;padding:24px 16px;background:var(--bg2);border-radius:var(--radius);border:1px solid var(--border);position:relative}
.step-num{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin:0 auto 14px}
.step h4{margin-bottom:6px;font-size:1rem}
.step p{color:var(--text2);font-size:.85rem}

/* FAQ */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;background:var(--bg2);overflow:hidden}
.faq-q{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem}
.faq-q::after{content:"+";font-size:1.2rem;color:var(--accent);transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .3s,padding .3s;color:var(--text2);font-size:.9rem}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px}

/* Article page */
.page-hero{padding:48px 0 32px;background:var(--bg2);border-bottom:1px solid var(--border)}
.page-hero h1{font-size:2rem;margin-bottom:8px}
.page-hero .breadcrumb{color:var(--text2);font-size:.9rem}
.page-hero .breadcrumb a{color:var(--text2)}
.page-content{padding:48px 0;max-width:860px;margin:0 auto}
.page-content h2{font-size:1.4rem;margin:32px 0 12px;color:var(--accent)}
.page-content h3{font-size:1.15rem;margin:24px 0 10px}
.page-content p,.page-content li{color:var(--text2);margin-bottom:12px;font-size:.95rem}
.page-content ul,.page-content ol{padding-left:24px;margin-bottom:16px}
.page-content li{margin-bottom:6px;list-style:disc}

/* Error pages */
.error-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:70vh;text-align:center;padding:40px 20px}
.error-page h1{font-size:5rem;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.error-page h2{margin:12px 0;font-size:1.5rem}
.error-page p{color:var(--text2);margin-bottom:24px}

/* Footer */
.site-footer{background:var(--bg2);border-top:1px solid var(--border);padding:48px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand p{color:var(--text2);font-size:.9rem;margin-top:12px}
.footer-col h4{margin-bottom:14px;font-size:1rem}
.footer-col a{display:block;color:var(--text2);font-size:.9rem;margin-bottom:8px}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{text-align:center;padding-top:24px;border-top:1px solid var(--border);color:var(--text2);font-size:.85rem}

/* Mobile nav */
.mobile-nav{display:none;position:fixed;top:var(--header-h);left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--border);padding:16px 20px;z-index:999;flex-direction:column;gap:12px}
.mobile-nav.open{display:flex}
.mobile-nav a{color:var(--text2);padding:8px 0;font-size:1rem;border-bottom:1px solid var(--border)}

/* VIP banner */
.vip-banner{background:linear-gradient(135deg,#2d1b4e,#1a1a2e);border:1px solid var(--gold);border-radius:var(--radius);padding:32px;display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin:40px 0}
.vip-banner h3{color:var(--gold);font-size:1.3rem;margin-bottom:10px}
.vip-banner p{color:var(--text2);font-size:.9rem}

/* Responsive */
@media(max-width:992px){
  .hero-grid,.content-block,.vip-banner{grid-template-columns:1fr}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .content-block.reverse{direction:ltr}
}
@media(max-width:768px){
  .nav-desktop{display:none}
  .menu-toggle{display:block}
  .hero h1{font-size:1.6rem}
  .hero{padding:40px 0 24px}
  .features-grid,.category-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  section{padding:40px 0}
  .vip-banner{grid-template-columns:1fr}
  body.sub-page .page-hero .container{padding:0 20px}
  body.sub-page .page-content{padding:32px 20px 48px}
  body.sub-page .error-page{padding:40px 20px}
  body.sub-page .site-footer .container{padding:0 20px}
}
@media(max-width:480px){
  .category-grid{grid-template-columns:1fr 1fr}
  .hero-btns{flex-direction:column}
  .btn{justify-content:center}
}