*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#0E0E0E;color:#F7F1DE;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}
body.drawer-open{overflow:hidden}
a{color:inherit}
img{max-width:100%}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:#111111;border-bottom:1px solid rgba(232,184,74,.28);box-shadow:0 8px 22px rgba(0,0,0,.35)}
.header-inner{max-width:1140px;min-height:66px;margin:0 auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.site-logo{display:flex;align-items:center;min-width:150px}
.site-logo img{display:block;height:38px;width:auto;max-width:156px;object-fit:contain}
.site-logo .img-placeholder,.drawer-logo .img-placeholder,.footer-logo .img-placeholder{display:block;width:142px;height:38px;background:#1C1C1C;border-radius:8px}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;flex:1}
.nav-core a{color:#F3E6C4;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}
.nav-core a.is-current,.nav-core a:hover{color:#111111;background:#E8B84A;border-radius:999px}
.menu-toggle{display:none}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;min-width:92px;padding:0 18px;background:linear-gradient(180deg,#F6D56A 0%,#E8B84A 55%,#C8962E 100%);color:#14110A;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 8px 18px rgba(200,150,46,.28);white-space:nowrap}
.main-btn:hover{background:#C8962E}
.channel-bar{background:#1A1A1A;border-bottom:1px solid rgba(232,184,74,.16)}
.channel-inner{max-width:1140px;margin:0 auto;padding:0 16px;display:flex;overflow-x:auto;scrollbar-width:thin}
.channel-inner a{flex:0 0 auto;padding:12px 11px;color:#C9BBA0;text-decoration:none;font-size:14px;white-space:nowrap}
.channel-inner a:hover,.channel-inner a.is-current{color:#E8B84A}
.site-main{max-width:1140px;margin:0 auto;padding:30px 72px 70px 16px}
.breadcrumb{font-size:14px;color:#8E8372;margin-bottom:18px}
.breadcrumb a{color:#C9BBA0;text-decoration:none}
.hero-title{margin:0 0 12px;font-size:clamp(32px,4.2vw,42px);line-height:1.18;color:#E8B84A}
.lead{font-size:18px;line-height:1.9;color:#F7F1DE;max-width:820px;margin:0 0 26px}
.section{margin:42px 0}
.section h2{font-size:26px;line-height:1.3;color:#E8B84A;margin:0 0 16px}
.section h3{font-size:19px;color:#F7F1DE;margin:22px 0 9px}
.article{max-width:820px}
.article p,.article li{font-size:17px;line-height:1.85;color:#F7F1DE}
.article p{margin:0 0 16px}
.article ul,.article ol{padding-left:1.25em}
.muted{color:#C9BBA0}
.notice{border:1px solid rgba(232,184,74,.22);background:#151515;border-radius:14px;padding:20px 22px;box-shadow:0 14px 32px rgba(0,0,0,.35)}
.notice strong{color:#E8B84A}
.link-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.text-link{display:inline-flex;align-items:center;min-height:40px;padding:8px 12px;border:1px solid rgba(232,184,74,.22);border-radius:999px;color:#F7F1DE;text-decoration:none;background:#171717}
.text-link:hover{border-color:#E8B84A;color:#E8B84A}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:12px;background:#1C1C1C;aspect-ratio:16/9}
.media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}
.img-placeholder{display:block;width:100%;height:100%;background:linear-gradient(135deg,#191919,#0d0d0d)}
.hero-media{max-width:1040px;height:clamp(170px,18vw,220px);aspect-ratio:auto;margin:0 auto 40px}
.hero-media .img-placeholder{height:100%}
.content-media{height:220px;aspect-ratio:auto;margin:18px 0 22px}
.card-media{height:160px;aspect-ratio:auto}
.index-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:28px 0 36px}
.index-card{background:#1C1C1C;border:1px solid rgba(232,184,74,.22);border-radius:14px;padding:20px;text-decoration:none;box-shadow:0 14px 32px rgba(0,0,0,.35)}
.index-card strong{display:block;color:#E8B84A;font-size:20px;margin-bottom:8px}
.index-card span{display:block;color:#C9BBA0;line-height:1.7}
.gold-line{border-top:1px solid #E8B84A;border-bottom:1px solid rgba(232,184,74,.22);padding:20px 2px;font-size:17px;line-height:1.85;color:#E7D7B0}
.stack-feature{max-width:820px}
.app-strip{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:22px;align-items:center;background:#151515;border:1px solid rgba(232,184,74,.22);border-radius:14px;padding:22px}
.app-strip .media{height:190px;aspect-ratio:auto}
.two-col{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:26px;align-items:start}
.three-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.three-links a{display:block;background:#1C1C1C;border:1px solid rgba(232,184,74,.22);border-radius:12px;padding:18px;text-decoration:none}
.three-links b{color:#E8B84A;display:block;margin-bottom:7px}
.steps{display:grid;gap:12px;counter-reset:step}
.step{position:relative;padding:16px 18px 16px 54px;background:#171717;border-left:2px solid #E8B84A;border-radius:12px}
.step:before{counter-increment:step;content:counter(step);position:absolute;left:17px;top:15px;width:24px;height:24px;border-radius:50%;background:#E8B84A;color:#111;display:grid;place-items:center;font-weight:700}
.faq-list{display:grid;gap:14px}
.faq-item{background:#171717;border:1px solid rgba(232,184,74,.22);border-radius:12px;padding:18px}
.faq-item h2{font-size:20px;margin:0 0 8px}
.faq-item p{margin:0;color:#F7F1DE;line-height:1.8}
.compact-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.compact-list section{background:#171717;border-radius:12px;padding:18px;border:1px solid rgba(232,184,74,.22)}
.compact-list h2{font-size:20px;color:#E8B84A;margin:0 0 10px}
.compact-list a{display:block;text-decoration:none;color:#F7F1DE;padding:6px 0}
.compact-list a:hover{color:#E8B84A}
.floating-actions{position:fixed;right:12px;top:38%;z-index:9800;width:92px;background:#111;border:1px solid rgba(232,184,74,.22);border-radius:12px;overflow:hidden;box-shadow:0 14px 32px rgba(0,0,0,.35)}
.floating-actions a{display:block;text-align:center;padding:10px 8px;color:#E8B84A;text-decoration:none;border-bottom:1px solid rgba(232,184,74,.12);font-size:13px}
.floating-actions a:last-child{border-bottom:0}
.floating-actions .float-main{background:#E8B84A;color:#111;font-weight:700}
.mobile-bottom{display:none}
.mobile-drawer,.drawer-mask{display:none}
.site-footer{background:#070707;border-top:1px solid #E8B84A;color:#E7D7B0}
.footer-grid{max-width:1140px;margin:0 auto;padding:36px 16px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.footer-grid h2{font-size:17px;color:#E8B84A;margin:0 0 12px}
.footer-grid a{display:block;color:#E7D7B0;text-decoration:none;padding:4px 0}
.footer-grid a:hover{color:#E8B84A}
.footer-brand p{color:#C9BBA0;line-height:1.7;max-width:260px}
.footer-logo img{height:38px;width:auto;object-fit:contain}
.footer-bottom{max-width:1140px;margin:0 auto;padding:18px 16px 84px;border-top:1px solid rgba(232,184,74,.16);color:#8E8372;line-height:1.75;font-size:14px}
@media(max-width:980px){
  .header-inner{min-height:62px;padding:0 12px;display:grid;grid-template-columns:86px minmax(0,1fr) 96px;gap:8px}
  .menu-toggle{display:inline-flex;justify-content:flex-start;align-items:center;background:none;border:0;color:#E8B84A;font-size:15px;font-weight:700;padding:10px 0}
  .site-logo{min-width:0;justify-content:center}
  .site-logo img{height:34px;max-width:142px}
  .site-logo .img-placeholder{width:126px;height:34px}
  .nav-core,.channel-bar{display:none}
  .header-btn{height:38px;min-width:88px;padding:0 12px;font-size:14px;justify-self:end}
  .site-main{padding:24px 14px 92px}
  .floating-actions{display:none}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9000;display:grid;grid-template-columns:repeat(4,1fr);background:#0C0C0C;border-top:1px solid #E8B84A;padding-bottom:max(0px,env(safe-area-inset-bottom))}
  .mobile-bottom a{text-align:center;text-decoration:none;color:#F7F1DE;padding:13px 4px;font-size:14px}
  .mobile-bottom a:hover{color:#E8B84A}
  .mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#161616;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(0,0,0,.45);overflow-y:auto;padding-bottom:28px}
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}
  .drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px;border-bottom:1px solid rgba(232,184,74,.2)}
  .drawer-logo img{height:34px;width:auto;object-fit:contain}
  .drawer-close{background:#222;color:#E8B84A;border:1px solid rgba(232,184,74,.28);border-radius:8px;padding:8px 10px}
  .drawer-group{padding:14px 16px 6px}
  .drawer-group strong{display:block;color:#E8B84A;margin-bottom:7px}
  .drawer-group a{display:block;text-decoration:none;color:#F7F1DE;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.05)}
  .hero-title{font-size:clamp(26px,8vw,32px)}
  .lead{font-size:17px}
  .hero-media{height:clamp(112px,34vw,150px);margin-bottom:28px}
  .index-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .index-card{padding:16px}
  .index-card strong{font-size:18px}
  .content-media{height:190px}
  .app-strip,.two-col{grid-template-columns:1fr}
  .app-strip .media{order:-1;height:190px}
  .three-links,.compact-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .header-inner{grid-template-columns:72px minmax(0,1fr) 92px}
  .site-logo img{max-width:132px;height:32px}
  .header-btn{min-width:82px;padding:0 10px}
  .index-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .index-card{padding:14px 12px}
  .section{margin:32px 0}
  .section h2{font-size:23px}
  .article p,.article li{font-size:16px;line-height:1.8}
  .footer-grid{grid-template-columns:1fr}
}