*{box-sizing:border-box}
html{scroll-behavior:smooth;background:#101115}
body{margin:0;background:#101115;color:#EDEFF5;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}
img{max-width:100%}
a{color:inherit}
button,input,select,textarea{font:inherit}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:#101115;box-shadow:0 8px 24px rgba(0,0,0,.28);backdrop-filter:blur(10px)}
.header-inner{max-width:1200px;min-height:72px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.site-logo,.drawer-logo,.footer-logo{display:flex;align-items:center;text-decoration:none;flex:0 0 auto}
.site-logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain}
.drawer-logo img,.footer-logo img{display:block;height:42px;width:auto;max-width:168px;object-fit:contain}
.logo-placeholder{display:block;width:148px;height:40px;border-radius:12px;background:linear-gradient(135deg,#202127,#15161A);border:1px solid rgba(248,200,74,.16)}
.nav-core{display:flex;align-items:center;justify-content:center;gap:6px;min-width:0;white-space:nowrap}
.nav-core a{color:#F8C84A;padding:8px 12px;border-radius:999px;font-weight:700;text-decoration:none;background:rgba(248,200,74,.06)}
.nav-core a.is-current,.nav-core a:hover{color:#F8C84A;background:linear-gradient(180deg,rgba(248,200,74,.14),rgba(248,200,74,.02));box-shadow:inset 0 -2px 0 #F8C84A}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(180deg,#FFE45A 0%,#F8B832 45%,#F3941F 100%);color:#101115;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(243,148,31,.28)}
.header-action{flex:0 0 auto}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(248,200,74,.22);border-radius:12px;background:#15161A;padding:10px;cursor:pointer}
.menu-toggle span{display:block;height:2px;margin:4px 0;background:#F8C84A;border-radius:9px}
.channel-strip{background:#15161A;border-top:1px solid rgba(255,255,255,.03);border-bottom:1px solid rgba(248,200,74,.08)}
.channel-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{flex:0 0 auto;padding:11px 10px;color:#B8BEC9;text-decoration:none;font-size:14px;white-space:nowrap}
.channel-inner a:hover{color:#F8C84A}
.site-main{width:100%;padding-right:64px}
.container{width:min(1200px,calc(100% - 40px));margin:0 auto}
.reading{width:min(860px,calc(100% - 40px));margin:0 auto}
.section{padding:58px 0}
.section-tight{padding:34px 0}
.hero-copy{padding:58px 0 30px}
.eyebrow{margin:0 0 10px;color:#F8C84A;font-size:14px;font-weight:700;letter-spacing:.08em}
h1,h2,h3{margin-top:0;color:#F8C84A;line-height:1.28}
h1{font-size:clamp(30px,4vw,46px);margin-bottom:18px}
h2{font-size:clamp(22px,2.6vw,31px);margin-bottom:16px}
h3{font-size:19px;margin-bottom:10px}
p{margin:0 0 16px;color:#EDEFF5}
.muted{color:#B8BEC9}
.note{color:#8E96A6;font-size:14px}
.lead{font-size:18px;color:#D8DEEA;max-width:780px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:18px;padding:22px;box-shadow:0 14px 36px rgba(0,0,0,.35);min-width:0}
.card p:last-child{margin-bottom:0}
.text-link{color:#F8C84A;text-decoration:none;font-weight:700}
.text-link:hover{text-decoration:underline}
.notice-line{padding:18px 22px;background:#1B1C21;border-left:3px solid #F8C84A;border-radius:0 16px 16px 0;color:#D8DEEA}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#15161A;aspect-ratio:16/9}
.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}
.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#1B1C21,#15161A 55%,#202127)}
.media.card-media{height:auto;aspect-ratio:16/9;min-height:156px;max-height:184px}
.media.feature-media{height:auto;aspect-ratio:16/9;min-height:220px;max-height:260px}
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center}
.split.reverse{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr)}
.stack{display:grid;gap:18px}
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.pill-row a{padding:8px 12px;border-radius:999px;background:#1B1C21;border:1px solid rgba(248,200,74,.16);text-decoration:none;color:#D8DEEA}
.pill-row a:hover{color:#F8C84A}
.steps{counter-reset:item;display:grid;gap:14px}
.step{position:relative;padding:20px 20px 20px 58px;background:#15161A;border:1px solid rgba(248,200,74,.14);border-radius:16px}
.step:before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#F8C84A;color:#101115;font-weight:800}
.table-wrap{overflow-x:auto;border-radius:16px}
.info-table{width:100%;border-collapse:collapse;background:#15161A;min-width:640px}
.info-table th,.info-table td{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.06);text-align:left}
.info-table th{color:#F8C84A;background:#1B1C21}
.quote-block{padding:22px;border-radius:18px;background:#1B1C21;border:1px solid rgba(248,200,74,.12)}
.related{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.related a{padding:10px 14px;border-radius:12px;background:#202127;text-decoration:none;color:#D8DEEA}
.related a:hover{color:#F8C84A}
.hero-carousel{position:relative;width:min(1200px,calc(100% - 40px));height:360px;margin:30px auto 0;border-radius:22px;background:#15161A;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.35)}
.hero-slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease}
.hero-slide.is-active{opacity:1;pointer-events:auto}
.hero-slide .media{height:100%;aspect-ratio:auto;border-radius:0}
.hero-slide .media>img{object-fit:contain}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border-radius:50%;border:1px solid rgba(248,200,74,.22);background:rgba(16,17,21,.84);color:#F8C84A;font-size:28px;cursor:pointer}
.carousel-prev{left:16px}.carousel-next{right:16px}
.carousel-dots{position:absolute;left:0;right:0;bottom:14px;z-index:3;display:flex;justify-content:center;gap:8px}
.carousel-dot{width:9px;height:9px;border:0;border-radius:50%;background:#8E96A6;padding:0;cursor:pointer}
.carousel-dot.is-active{background:#F8C84A;transform:scale(1.18)}
.topic-wall{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.topic-item{background:#15161A;border:1px solid rgba(248,200,74,.12);border-radius:16px;padding:18px}
.topic-item p{color:#B8BEC9;font-size:14px;line-height:1.65}
.app-strip{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:24px;align-items:center;background:#15161A;border:1px solid rgba(248,200,74,.14);border-radius:18px;padding:22px}
.security-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.security-strip>div{padding:18px;background:#1B1C21;border-radius:16px}
.faq-list{display:grid;gap:16px}
.faq-item{background:#15161A;border:1px solid rgba(248,200,74,.14);border-radius:16px;padding:22px}
.faq-item h2{font-size:20px}
.site-footer{background:#08090C;color:#D8DEEA;padding:54px 64px 24px 0}
.footer-grid{width:min(1200px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:28px}
.site-footer h2{font-size:18px}
.site-footer a{display:block;color:#B8BEC9;text-decoration:none;margin:7px 0}
.site-footer a:hover{color:#F8C84A}
.footer-brand p{color:#B8BEC9}
.footer-bottom{width:min(1200px,calc(100% - 40px));margin:26px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.07);display:flex;justify-content:space-between;gap:20px}
.footer-bottom p{margin:0;color:#8E96A6;font-size:14px}
.side-tools{position:fixed;right:10px;top:50%;transform:translateY(-50%);z-index:9000;width:54px;background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:16px;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.35)}
.side-tools a,.side-tools button{display:block;width:100%;padding:10px 6px;border:0;border-bottom:1px solid rgba(255,255,255,.05);background:transparent;color:#F8C84A;text-align:center;text-decoration:none;font-size:12px;line-height:1.3;cursor:pointer}
.side-tools .side-register{background:linear-gradient(180deg,#FFE45A 0%,#F8B832 45%,#F3941F 100%);color:#101115;font-weight:800}
.mobile-bottom{display:none}
.mobile-drawer,.drawer-mask{display:none}

@media(max-width:1100px){
  .nav-core a{padding:8px 9px;font-size:14px}
  .header-inner{gap:10px}
  .card-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}
  .topic-wall{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:980px){
  body{padding-bottom:68px}
  .site-main{padding-right:0}
  .site-footer{padding-right:0}
  .nav-core,.channel-strip,.side-tools{display:none}
  .header-inner{min-height:64px;padding:0 14px;display:grid;grid-template-columns:96px 1fr 96px;gap:8px}
  .menu-toggle{display:block;justify-self:start}
  .site-logo{justify-self:center}
  .site-logo img{height:36px;max-width:142px}
  .header-action{justify-self:end;height:40px;min-width:92px;padding:0 14px}
  .mobile-drawer{
    display:block;
    position:fixed;
    inset:0 auto 0 0;
    width:min(84vw,320px);
    background:#15161A;
    z-index:12000;
    transform:translateX(-105%);
    transition:transform .2s ease;
    box-shadow:18px 0 40px rgba(0,0,0,.36);
    overflow-y:auto;
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-mask{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(0,0,0,.52);
    z-index:11000;
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease;
  }
  .drawer-mask.is-visible{
    display:block;
    opacity:1;
    pointer-events:auto;
  }
  body.drawer-open{overflow:hidden}
  .drawer-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:14px;background:#15161A;border-bottom:1px solid rgba(255,255,255,.06)}
  .drawer-close{width:40px;height:40px;border:1px solid rgba(248,200,74,.18);border-radius:10px;background:#202127;color:#F8C84A;font-size:28px;line-height:1;cursor:pointer}
  .drawer-groups{padding:10px 14px 30px}
  .drawer-groups section{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.06)}
  .drawer-groups h2{font-size:14px;color:#8E96A6;margin:0 0 7px}
  .drawer-groups a{display:block;padding:9px 4px;color:#EDEFF5;text-decoration:none}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;height:58px;display:grid;grid-template-columns:repeat(4,1fr);background:#101115;border-top:1px solid rgba(248,200,74,.16)}
  .mobile-bottom a{display:grid;place-items:center;text-decoration:none;color:#D8DEEA;font-size:14px}
  .split,.split.reverse,.app-strip{grid-template-columns:1fr}
  .split.reverse .media{order:0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-bottom{display:block}
  .hero-carousel{height:280px}
  .security-strip{grid-template-columns:1fr}
}
@media(max-width:700px){
  .container,.reading,.footer-grid,.footer-bottom,.hero-carousel{width:min(100% - 28px,1200px)}
  .section{padding:42px 0}
  .section-tight{padding:28px 0}
  .hero-copy{padding:38px 0 20px}
  h1{font-size:clamp(27px,8vw,34px)}
  p{font-size:16px}
  .card-grid,.card-grid.two,.card-grid.four{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .card{padding:17px}
  .topic-wall{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .topic-item{padding:15px}
  .hero-carousel{height:200px;margin-top:18px;border-radius:18px}
  .carousel-prev,.carousel-next{width:36px;height:36px;font-size:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px 14px}
}
@media(max-width:430px){
  .header-inner{grid-template-columns:88px 1fr 88px;padding:0 10px}
  .site-logo img{height:34px;max-width:128px}
  .header-action{min-width:84px;padding:0 10px;font-size:14px}
  .card-grid,.card-grid.two,.card-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-carousel{height:180px}
}
@media(max-width:375px){
  .header-inner{grid-template-columns:82px 1fr 82px}
  .header-action{min-width:78px;padding:0 8px;font-size:13px}
  .menu-toggle{width:40px;height:40px}
  .site-logo img{max-width:118px}
  .topic-item h3{font-size:17px}
}