*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#141B22;color:#EEF2F7;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}
body.drawer-open{overflow:hidden}
a{color:#F4B000;text-decoration:none}
a:hover{color:#FFC533}
img{max-width:100%}
button,input,select,textarea{font:inherit}
.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,.drawer-logo,.footer-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}
.drawer-logo img,.footer-logo img{display:block;height:38px;width:auto;max-width:160px;object-fit:contain}
.logo-placeholder{display:inline-flex;align-items:center;justify-content:center;min-width:128px;height:38px;border:1px solid rgba(244,176,0,.25);border-radius:10px;color:#F4B000;font-weight:800}
.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;padding:8px;width:42px;height:42px;flex:0 0 42px}
.menu-toggle span{display:block;width:22px;height:2px;background:#F4B000;margin:5px auto}
.channel-bar{background:#1A232D;border-top:1px solid rgba(244,176,0,.08);border-bottom:1px solid rgba(244,176,0,.10)}
.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 10px;white-space:nowrap;font-size:14px}
.channel-inner a:hover,.channel-inner a.is-current{color:#F4B000}
.mobile-drawer,.drawer-mask{display:none}
.site-main{min-height:60vh}
.wrap{max-width:1180px;margin:0 auto;padding:0 18px}
.reading{max-width:820px;margin:0 auto}
.section{padding:52px 0}
.section-sm{padding:32px 0}
.page-hero{padding:46px 0 28px;background:linear-gradient(180deg,#10161C 0,#141B22 100%)}
.page-hero h1,.home-intro h1{margin:0 0 12px;color:#F4B000;font-size:clamp(30px,4vw,46px);line-height:1.22}
.page-hero p,.home-intro p{margin:0;color:#B9C2CF;font-size:17px}
.breadcrumbs{font-size:14px;color:#8D98A7;margin-bottom:12px}
.breadcrumbs a{color:#B9C2CF}
h1,h2,h3{line-height:1.35}
h2{color:#F4B000;font-size:clamp(23px,3vw,30px);margin:0 0 16px}
h3{color:#EEF2F7;margin:0 0 8px;font-size:19px}
p{margin:0 0 16px}
.lead{font-size:18px;color:#D8DEE8}
.muted{color:#8D98A7}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#1A232D;aspect-ratio:16/9;border:1px solid rgba(244,176,0,.10)}
.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;display:block;background:linear-gradient(135deg,#1A232D,#10161C)}
.media.compact{max-height:240px}
.grid-2,.grid-3,.grid-4{display:grid;gap:20px}
.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))}
.info-card,.link-card,.topic-tile,.step,.notice-box{background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:15px;box-shadow:0 14px 36px rgba(0,0,0,.18)}
.info-card,.link-card,.step,.notice-box{padding:22px}
.link-card{display:block;color:#EEF2F7}
.link-card:hover{transform:translateY(-2px);border-color:rgba(244,176,0,.35)}
.link-card strong,.topic-tile strong{color:#F4B000;display:block;margin-bottom:8px}
.topic-tile{padding:17px 16px;color:#EEF2F7}
.topic-tile span{font-size:14px;color:#B9C2CF}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:center}
.split.reverse .visual{order:2}.split.reverse .copy{order:1}
.text-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.text-links a{padding:14px 16px;background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:12px;color:#EEF2F7}
.text-links a:hover{color:#F4B000}
.article-body{font-size:17px}
.article-body ul,.article-body ol{padding-left:1.3em}
.article-body li{margin:7px 0}
.article-body section+section{margin-top:38px}
.inline-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.inline-links a{border:1px solid rgba(244,176,0,.18);background:#1A232D;padding:8px 12px;border-radius:999px}
.steps{display:grid;gap:14px}
.step{display:grid;grid-template-columns:42px 1fr;gap:14px;align-items:start}
.step-number{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#F4B000;color:#141B22;font-weight:800}
.compare-table{width:100%;border-collapse:collapse;background:#1A232D;border-radius:14px;overflow:hidden}
.compare-table th,.compare-table td{padding:14px 15px;border-bottom:1px solid rgba(244,176,0,.1);text-align:left;vertical-align:top}
.compare-table th{color:#F4B000;background:#10161C}
.hero-carousel{position:relative;max-width:1180px;height:360px;margin:22px auto 0;border-radius:16px;background:#1A232D;overflow:hidden;border:1px solid rgba(244,176,0,.12)}
.carousel-slide{position:absolute;inset:0;opacity:0;transition:opacity .45s ease;pointer-events:none}
.carousel-slide.is-active{opacity:1;pointer-events:auto}
.carousel-slide .media{height:100%;aspect-ratio:auto;border:0;border-radius:0}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:44px;height:44px;border:1px solid rgba(244,176,0,.28);background:rgba(16,22,28,.78);color:#F4B000;border-radius:50%;cursor:pointer}
.carousel-prev{left:14px}.carousel-next{right:14px}
.carousel-dots{position:absolute;z-index:4;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:8px}
.carousel-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#8D98A7;cursor:pointer}
.carousel-dot.is-active{background:#F4B000;transform:scale(1.25)}
.mid-poster{max-width:1100px;margin:0 auto}
.mid-poster .media{height:220px;aspect-ratio:auto}
.app-strip{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:center;background:#10161C;border:1px solid rgba(244,176,0,.14);padding:24px;border-radius:16px}
.app-strip .media{height:210px;aspect-ratio:auto}
.side-float{position:fixed;right:14px;top:38%;z-index:9000;display:flex;flex-direction:column;width:92px;background:#10161C;border:1px solid rgba(244,176,0,.16);border-radius:13px;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.28)}
.side-float a,.side-float button{border:0;border-bottom:1px solid rgba(244,176,0,.08);background:transparent;color:#F4B000;padding:11px 8px;text-align:center;font-size:13px;cursor:pointer}
.side-float .side-register{background:#F4B000;color:#141B22;font-weight:800}
.mobile-bottom{display:none}
.site-footer{background:#0B1015;color:#D8DEE8;padding:46px 0 110px}
.footer-grid{max-width:1180px;margin:0 auto;padding:0 18px;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px}
.footer-grid h2{font-size:18px;margin-bottom:12px}
.footer-grid a{display:block;color:#B9C2CF;margin:6px 0}
.footer-grid a:hover{color:#F4B000}
.footer-brand p{color:#8D98A7;max-width:330px}
.footer-bottom{max-width:1180px;margin:28px auto 0;padding:20px 18px 0;border-top:1px solid rgba(216,222,232,.08);color:#8D98A7;font-size:14px}
.faq-list details{background:#1A232D;border:1px solid rgba(244,176,0,.12);border-radius:14px;padding:16px 18px;margin-bottom:12px}
.faq-list summary{color:#F4B000;font-weight:700;cursor:pointer}
.faq-list details p{margin:12px 0 0;color:#D8DEE8}
@media(max-width:1200px){.side-float{display:none}}
@media(max-width:980px){
  .header-inner{min-height:64px;padding:0 12px;display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:8px}
  .menu-toggle{display:block}
  .site-logo{justify-self:center}
  .site-logo img{height:36px;max-width:145px}
  .nav-core,.channel-bar{display:none}
  .header-action{height:40px;min-width:86px;padding:0 14px;font-size:14px;justify-self:end}
  .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:32px;
  }
  .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,.12)}
  .drawer-close{border:0;background:transparent;color:#F4B000;font-size:30px;line-height:1;cursor:pointer}
  .drawer-group{padding:12px 16px;border-bottom:1px solid rgba(244,176,0,.08)}
  .drawer-group strong{display:block;color:#F4B000;margin-bottom:6px}
  .drawer-group a{display:block;color:#D8DEE8;padding:7px 0}
  .mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:8500;background:#141B22;border-top:1px solid rgba(244,176,0,.14);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-bottom a{text-align:center;color:#D8DEE8;padding:12px 6px;font-size:14px}
  .mobile-bottom a:hover{color:#F4B000}
  .site-footer{padding-bottom:90px}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .hero-carousel{height:270px;border-radius:0;margin-top:0}
}
@media(max-width:720px){
  .section{padding:36px 0}.section-sm{padding:26px 0}
  .page-hero{padding:34px 0 22px}
  .grid-2,.grid-3,.split,.app-strip{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split.reverse .visual,.split.reverse .copy{order:initial}
  .text-links{grid-template-columns:1fr}
  .hero-carousel{height:190px}
  .mid-poster .media{height:145px}
  .app-strip .media{height:170px}
  .footer-grid{grid-template-columns:1fr}
  .article-body{font-size:16px}
}
@media(max-width:430px){
  .header-inner{grid-template-columns:42px minmax(0,1fr) 82px}
  .menu-toggle{width:42px}
  .site-logo img{height:34px;max-width:128px}
  .logo-placeholder{min-width:106px;font-size:14px}
  .header-action{min-width:82px;padding:0 10px;font-size:13px}
  .hero-carousel{height:170px}
}