*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:#141B22;color:#EEF2F7;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.78;overflow-x:hidden}
a{color:#F4B000;text-decoration:none}
a:hover{color:#FFC533}
img{max-width:100%}
body.drawer-open{overflow:hidden}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(20,27,34,.92);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(0,0,0,.22)}
.header-inner{max-width:1180px;min-height:70px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.site-logo{display:inline-flex;align-items:center;flex:0 0 auto}
.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}
.logo-fallback{font-weight:800;font-size:22px;color:#F4B000;white-space:nowrap}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0}
.nav-core a{color:#F4B000;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}
.nav-core a.is-current,.nav-core a:hover{color:#FFC533;box-shadow:inset 0 -2px 0 #F4B000}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:#F4B000;color:#141B22;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(244,176,0,.18);white-space:nowrap}
.main-btn:hover{background:#FFC533;color:#141B22}
.menu-toggle{display:none;border:0;background:transparent;color:#F4B000;font-size:28px;line-height:1;cursor:pointer}
.channel-bar{background:#1A232D;border-top:1px solid rgba(244,176,0,.08);border-bottom:1px solid rgba(244,176,0,.08)}
.channel-inner{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;gap:2px;overflow-x:auto;scrollbar-width:thin}
.channel-inner a{color:#B9C2CF;padding:10px 12px;white-space:nowrap;font-size:14px}
.channel-inner a:hover,.channel-inner a.is-current{color:#F4B000}
.site-main{max-width:1180px;margin:0 auto;padding:30px 78px 64px 18px}
.hero-slider{position:relative;border-radius:16px;background:#1A232D;overflow:hidden;height:360px}
.slide{position:absolute;inset:0;display:none;align-items:center;justify-content:center}
.slide.is-active{display:flex}
.slide img{width:100%;height:100%;object-fit:contain;display:block}
.placeholder{background:linear-gradient(135deg,#1A232D,#10161C);min-height:160px}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:42px;height:42px;border-radius:50%;border:1px solid rgba(244,176,0,.35);background:rgba(20,27,34,.78);color:#F4B000;font-size:24px;cursor:pointer}
.slider-prev{left:14px}.slider-next{right:14px}
.slider-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:8px;z-index:4}
.slider-dot{width:10px;height:10px;border-radius:50%;border:0;background:#8D98A7;cursor:pointer;padding:0}
.slider-dot.is-active{background:#F4B000}
.section{padding:44px 0}
.section h1,.section h2,.article h1,.article h2{color:#F4B000;line-height:1.25}
.section h1,.article h1{font-size:42px;margin:0 0 22px}
.section h2,.article h2{font-size:26px;margin:34px 0 12px}
.section p,.article p,.article li{font-size:17px;color:#EEF2F7}
.lead{color:#D8DEE8;font-size:18px;max-width:840px}
.breadcrumb{font-size:14px;color:#8D98A7;margin-bottom:16px}
.breadcrumb a{color:#B9C2CF}
.grid-3,.grid-4,.grid-2,.link-grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:16px;padding:22px;box-shadow:0 14px 36px rgba(0,0,0,.18)}
.card h2,.card h3{color:#F4B000;margin-top:0}
.card p{color:#B9C2CF}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#1A232D;aspect-ratio:16/9}
.media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}
.mid-poster{height:220px;max-width:1100px;margin:0 auto}
.mid-poster.media{aspect-ratio:auto}
.mid-poster.media>img{position:absolute}
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}
.text-links{display:grid;gap:10px}
.text-links a{display:block;padding:12px 14px;background:#1A232D;border-radius:12px;border:1px solid rgba(244,176,0,.14)}
.app-strip{display:grid;grid-template-columns:1.4fr .6fr;gap:24px;align-items:center;background:#222C36;padding:24px;border-radius:16px}
.article{max-width:840px;margin:0 auto;padding:28px 0 48px}
.article .media{margin:22px 0}
.article ul,.article ol{padding-left:22px}
.article .related{margin-top:34px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.article .related a{background:#1A232D;border-radius:12px;padding:14px;border:1px solid rgba(244,176,0,.14)}
.steps{counter-reset:s;display:grid;gap:14px;margin:20px 0}
.step{background:#1A232D;padding:18px 18px 18px 58px;border-radius:14px;position:relative}
.step:before{counter-increment:s;content:counter(s);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#F4B000;color:#141B22;font-weight:800}
.note{border-left:3px solid #F4B000;background:#1A232D;padding:16px 18px;border-radius:0 12px 12px 0;color:#D8DEE8}
.faq-list details{background:#1A232D;border-radius:14px;padding:16px 18px;margin:12px 0;border:1px solid rgba(244,176,0,.14)}
.faq-list summary{color:#F4B000;font-weight:700;cursor:pointer}
.faq-list details[open] summary{margin-bottom:8px}
.float-tools{position:fixed;right:12px;top:180px;z-index:8000;display:grid;gap:8px;width:58px}
.float-tools a{background:#1A232D;color:#F4B000;border:1px solid rgba(244,176,0,.22);padding:10px 6px;border-radius:10px;text-align:center;font-size:12px;line-height:1.3}
.float-tools .float-main{background:#F4B000;color:#141B22;font-weight:800}
.site-footer{background:#0B1015;color:#D8DEE8}
.footer-grid{max-width:1180px;margin:0 auto;padding:42px 18px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.site-footer h2{font-size:17px;color:#F4B000}
.site-footer a{display:block;color:#B9C2CF;margin:6px 0}
.footer-brand .site-logo{margin-bottom:14px}
.footer-bottom{border-top:1px solid rgba(244,176,0,.12);max-width:1180px;margin:0 auto;padding:18px;color:#8D98A7;font-size:14px}
.mobile-bottom{display:none}
.mobile-drawer,
.drawer-mask{display:none}
@media(max-width:980px){
  .nav-core,.channel-bar,.float-tools{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px}
  .header-inner{min-height:64px;padding:0 12px;gap:8px}
  .header-inner .site-logo{position:absolute;left:50%;transform:translateX(-50%)}
  .header-inner .site-logo img{max-width:132px;height:36px}
  .header-inner .main-btn{height:40px;min-width:82px;padding:0 14px;margin-left:auto}
  .site-main{padding:24px 14px 92px}
  .mobile-drawer{
    display:block;
    position:fixed;
    inset:0 auto 0 0;
    width:min(84vw,320px);
    background:#1A232D;
    z-index:12000;
    transform:translateX(-105%);
    transition:transform .2s ease;
    box-shadow:18px 0 40px rgba(0,0,0,.36);
    overflow-y:auto;
    padding-bottom:30px;
  }
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-mask{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(11,16,21,.52);
    z-index:11000;
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease;
  }
  .drawer-mask.is-visible{
    display:block;
    opacity:1;
    pointer-events:auto;
  }
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(244,176,0,.14)}
  .drawer-close{border:0;background:transparent;color:#F4B000;font-size:32px;cursor:pointer}
  .drawer-group{padding:14px 18px;border-bottom:1px solid rgba(244,176,0,.08)}
  .drawer-group strong{display:block;color:#F4B000;margin-bottom:8px}
  .drawer-group a{display:block;color:#D8DEE8;padding:7px 0}
  .hero-slider{height:260px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .split,.app-strip{grid-template-columns:1fr}
  .article .related{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9000;height:62px;background:#141B22;border-top:1px solid rgba(244,176,0,.15);display:grid;grid-template-columns:repeat(4,1fr)}
  .mobile-bottom a{display:grid;place-items:center;color:#F4B000;font-weight:700}
}
@media(max-width:640px){
  .hero-slider{height:190px}
  .section{padding:30px 0}
  .section h1,.article h1{font-size:30px}
  .section h2,.article h2{font-size:23px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .grid-4,.link-grid{grid-template-columns:repeat(2,1fr)}
  .article .related{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .mid-poster{height:145px}
}