*{box-sizing:border-box}
html{scroll-behavior:smooth;background:#111318}
body{margin:0;background:#111318;color:#D5D8DF;font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
body.drawer-open{overflow:hidden}
img,video,svg{max-width:100%}
a{color:#F7F8FA;text-decoration:none;touch-action:manipulation}
button{font:inherit}
.wrap{width:min(1200px,calc(100% - 40px));margin:0 auto}
.site-header{background:#151820;border-bottom:1px solid rgba(255,255,255,.09);position:relative;z-index:100}
.topbar{width:min(1200px,calc(100% - 40px));margin:0 auto;height:74px;display:flex;align-items:center;gap:24px}
.brand-link,.mobile-brand,.drawer-brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-logo,.logo-placeholder{width:42px;height:42px;border-radius:10px;object-fit:contain;background:#12151c;display:block;flex:0 0 auto}
.brand-name{font-weight:800;color:#F7F8FA;white-space:nowrap}
.brand-name small{display:block;color:#AEB4C0;font-size:10px;letter-spacing:.15em;line-height:1.1}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;white-space:nowrap}
.main-nav a{height:74px;padding:0 12px;display:flex;align-items:center;color:#AEB4C0;border-bottom:2px solid transparent;transition:.2s}
.main-nav a:hover{color:#F7F8FA}
.main-nav a.active{color:#F7F8FA;border-bottom-color:#F45132}
.register-btn{height:42px;min-width:76px;padding:0 20px;border-radius:999px;background:#F45132;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;transition:.2s;flex:0 0 auto}
.register-btn:hover{background:#FF684E}
.channel-strip{border-top:1px solid rgba(255,255,255,.06);background:#12151c}
.channel-strip .wrap{min-height:38px;display:flex;align-items:center;gap:20px;overflow-x:auto;scrollbar-width:none}
.channel-strip .wrap::-webkit-scrollbar{display:none}
.channel-strip a{color:#AEB4C0;font-size:14px;white-space:nowrap}
.channel-strip a:hover{color:#F7F8FA}
.mobile-topbar{display:none}

.site-main{min-height:60vh;padding-bottom:40px}
.hero{padding:54px 0 26px}
.hero h1{margin:0 0 14px;color:#F7F8FA;font-size:clamp(32px,4vw,42px);line-height:1.2}
.hero p{margin:0;max-width:860px;color:#AEB4C0;font-size:17px}
.eyebrow{display:inline-flex;gap:8px;align-items:center;color:#D7A84B;font-size:13px;font-weight:800;letter-spacing:.08em;margin-bottom:12px}
.eyebrow:before{content:"";width:22px;height:2px;background:#F45132}
.section{padding:26px 0}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
.section-title h2{margin:0;color:#F7F8FA;font-size:24px;line-height:1.3}
.section-title p{margin:0;color:#AEB4C0;font-size:14px}
.panel{background:#1A1E27;border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:22px}
.panel h2,.panel h3{color:#F7F8FA;margin-top:0}
.panel p:last-child{margin-bottom:0}
.grid-2,.grid-3,.grid-4{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:#1A1E27;border:1px solid rgba(255,255,255,.09);border-radius:14px;overflow:hidden;min-width:0}
.card-body{padding:18px}
.card h3{margin:0 0 8px;color:#F7F8FA;font-size:19px}
.card p{margin:0;color:#AEB4C0}
.text-link{display:inline-flex;margin-top:12px;color:#F7F8FA;border-bottom:1px solid #F45132}
.text-link:hover{color:#FF684E}
.notice{border-left:3px solid #D7A84B;background:#1A1E27;padding:16px 18px;border-radius:0 10px 10px 0;color:#D5D8DF}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:10px;background:#12151c;aspect-ratio:16/9}
.media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}
.media-4x5{aspect-ratio:4/5}
.media-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#12151c,#222733);border:1px solid rgba(255,255,255,.06)}
.media-placeholder:after{content:"";width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.12);box-shadow:0 0 0 10px rgba(255,255,255,.02)}
.feature{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:center}
.feature.reverse{grid-template-columns:.85fr 1.15fr}
.feature-copy h2{margin:0 0 10px;color:#F7F8FA;font-size:26px}
.feature-copy p{margin:0 0 12px}
.kicker{color:#D7A84B;font-size:13px;font-weight:700}
.list-clean{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.list-clean li{background:#1A1E27;border:1px solid rgba(255,255,255,.09);border-radius:12px;padding:16px}
.list-clean strong{display:block;color:#F7F8FA;margin-bottom:4px}
.link-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.link-row a{min-height:40px;display:inline-flex;align-items:center;padding:0 14px;border-radius:999px;background:#222733;border:1px solid rgba(255,255,255,.09)}
.link-row a:hover{border-color:#F45132}
.qa{display:grid;gap:14px}
.qa article{padding:18px;background:#1A1E27;border:1px solid rgba(255,255,255,.09);border-radius:12px}
.qa h3{margin:0 0 8px;color:#F7F8FA;font-size:18px}
.qa p{margin:0}
.meta-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.meta-strip span{font-size:13px;color:#AEB4C0;background:#222733;border-radius:999px;padding:5px 10px}

.slider{position:relative}
.slider-stage{position:relative;overflow:hidden;border-radius:14px;background:#12151c;height:260px;border:1px solid rgba(255,255,255,.09)}
.slide{position:absolute;inset:0;display:none;align-items:center;justify-content:center}
.slide.active{display:flex}
.slide img{width:100%;height:100%;object-fit:contain;display:block}
.slide .media-placeholder{position:absolute}
.slider-controls{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:12px}
.slider-prev,.slider-next,.slider-dot,.menu-btn,.drawer-close,.back-top{border:0;cursor:pointer}
.slider-prev,.slider-next{width:40px;height:40px;border-radius:50%;background:#222733;color:#F7F8FA}
.slider-dots{display:flex;gap:7px}
.slider-dot{width:9px;height:9px;border-radius:50%;background:#4A5060;padding:0}
.slider-dot.active{background:#F45132}

.site-footer{background:#151820;border-top:1px solid rgba(255,255,255,.09);padding:42px 0 22px}
.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.footer-grid h2{font-size:16px;color:#F7F8FA;margin:0 0 12px}
.footer-grid a{display:block;color:#AEB4C0;min-height:40px;padding:5px 0}
.footer-grid a:hover{color:#F7F8FA}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);margin-top:28px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#AEB4C0;font-size:14px}
.footer-bottom p{margin:0}
.mobile-bottom{display:none}
.back-top{position:fixed;right:18px;bottom:22px;width:44px;height:44px;border-radius:50%;background:#222733;color:#F7F8FA;opacity:0;pointer-events:none;transition:.2s;z-index:9000}
.back-top.show{opacity:1;pointer-events:auto}

.mobile-drawer,
.drawer-mask{display:none}
@media(max-width:980px){
  .desktop-topbar{display:none}
  .mobile-topbar{height:64px;display:grid;grid-template-columns:80px 1fr 80px;align-items:center;width:min(100%,calc(100% - 24px));margin:0 auto;gap:6px}
  .menu-btn{width:44px;height:44px;background:transparent;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:9px;justify-self:start}
  .menu-btn span{display:block;height:2px;background:#F7F8FA;border-radius:2px}
  .mobile-brand{justify-self:center;color:#F7F8FA;font-weight:800;white-space:nowrap;min-width:0}
  .mobile-brand .brand-logo,.mobile-brand .logo-placeholder{width:34px;height:34px}
  .mobile-register{justify-self:end;min-width:68px;height:40px;padding:0 14px}
  .channel-strip .wrap{width:calc(100% - 24px)}
  .mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#151820;color:#F7F8FA;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;overflow-y:auto;padding-bottom:30px}
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:11000;opacity:0;pointer-events:none}
  .drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
  .drawer-head{height:64px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.09)}
  .drawer-brand{font-weight:800}
  .drawer-brand .brand-logo,.drawer-brand .logo-placeholder{width:34px;height:34px}
  .drawer-close{width:42px;height:42px;border-radius:50%;background:#222733;color:#F7F8FA;font-size:26px}
  .drawer-group{padding:16px;border-bottom:1px solid rgba(255,255,255,.07)}
  .drawer-group strong{display:block;color:#D7A84B;font-size:13px;margin-bottom:6px}
  .drawer-group a{display:flex;align-items:center;min-height:44px;color:#D5D8DF}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature,.feature.reverse{grid-template-columns:1fr}
  .feature.reverse .media{order:0}
  .feature.reverse .feature-copy{order:1}
  .mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;min-height:64px;padding-bottom:env(safe-area-inset-bottom);background:#151820;border-top:1px solid rgba(255,255,255,.09);z-index:10000}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:44px;color:#D5D8DF;font-size:14px}
  .mobile-bottom .bottom-register{color:#F45132;font-weight:800}
  .site-main{padding-bottom:88px}
  .back-top{bottom:82px}
}
@media(max-width:680px){
  .wrap{width:calc(100% - 24px)}
  .hero{padding:38px 0 20px}
  .hero h1{font-size:30px}
  .hero p{font-size:16px}
  .section{padding:20px 0}
  .section-title{align-items:flex-start;flex-direction:column;gap:4px}
  .section-title h2{font-size:22px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .panel{padding:18px}
  .slider-stage{height:170px}
  .media-4x5{max-height:260px;aspect-ratio:4/5}
  .media-4x5 > img{object-fit:contain}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media(max-width:390px){
  .mobile-topbar{grid-template-columns:64px 1fr 64px}
  .mobile-register{min-width:60px;padding:0 10px}
  .mobile-brand{font-size:15px;gap:6px}
  .mobile-brand .brand-logo,.mobile-brand .logo-placeholder{width:30px;height:30px}
}