*{box-sizing:border-box}
:root{
  --bg:#0b1014;--bg2:#111820;--panel:#151e27;--panel2:#1a2530;
  --line:rgba(89,214,163,.20);--mint:#59d6a3;--mint2:#39b987;
  --text:#eef6f1;--muted:#9fb0a8;--sand:#e9d6a4;--danger:#ffcb6b
}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:linear-gradient(180deg,#0b1014 0%,#0d1319 42%,#0b1014 100%);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}
img{max-width:100%}a{color:var(--mint)}
.shell{width:min(1180px,calc(100% - 34px));margin:0 auto}
.topline{background:#07100c;border-bottom:1px solid rgba(89,214,163,.14);color:#8fac9e;font-size:12px}
.topline-inner{min-height:30px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.site-header{position:sticky;top:0;z-index:9999;background:rgba(11,16,20,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(89,214,163,.18)}
.header-grid{height:72px;display:grid;grid-template-columns:190px 1fr 90px;align-items:center;gap:20px}
.brand{display:flex;align-items:center;text-decoration:none;color:var(--text);font-weight:900;font-size:23px}
.brand img{height:42px;width:auto;max-width:170px;object-fit:contain}
.main-nav{display:flex;justify-content:center;align-items:center;gap:8px}
.main-nav a{color:#dbe7e1;text-decoration:none;padding:9px 14px;border-radius:10px;font-weight:700;white-space:nowrap}
.main-nav a:hover,.main-nav a.active{background:rgba(89,214,163,.12);color:var(--mint)}
.account-btn{justify-self:end;text-decoration:none;background:var(--mint);color:#06110d;font-weight:800;border-radius:10px;padding:9px 18px}
.menu-toggle{display:none;background:none;border:0;color:var(--mint);font-size:24px}
.topic-rail{background:#10171d;border-bottom:1px solid rgba(89,214,163,.10)}
.topic-scroll{display:flex;overflow-x:auto;scrollbar-width:none}
.topic-scroll::-webkit-scrollbar{display:none}
.topic-scroll a{flex:0 0 auto;color:#9fb0a8;text-decoration:none;padding:11px 13px;font-size:14px;white-space:nowrap}
.topic-scroll a:hover{color:var(--mint)}
.mobile-drawer,.drawer-mask{display:none}
.site-main{min-height:65vh}
.hero{padding:52px 0 28px}
.hero-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.eyebrow{color:var(--mint);font-size:13px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
.hero h1{font-size:clamp(34px,4.6vw,58px);line-height:1.15;margin:12px 0 18px;letter-spacing:-.02em}
.hero p{font-size:18px;color:#b6c7bf;max-width:700px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn-primary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:12px;text-decoration:none;font-weight:800}
.btn-primary{background:var(--mint);color:#07120d}
.btn-ghost{border:1px solid rgba(89,214,163,.35);color:var(--text);background:#111820}
.visual-frame{background:linear-gradient(145deg,#111820,#0e151b);border:1px solid rgba(89,214,163,.18);border-radius:22px;padding:14px;box-shadow:0 22px 60px rgba(0,0,0,.38)}
.media{position:relative;overflow:hidden;background:#10161c;border-radius:16px;aspect-ratio:16/9;border:1px solid rgba(255,255,255,.04)}
.media img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center}
.media-placeholder{position:absolute;inset:0;display:grid;place-items:center;color:#61756b;font-size:14px;padding:20px;text-align:center}
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:18px 0 46px}
.quick-card{display:block;text-decoration:none;background:var(--panel);border:1px solid rgba(89,214,163,.15);border-radius:16px;padding:20px;min-height:150px}
.quick-card b{display:block;color:var(--mint);font-size:17px;margin-bottom:8px}
.quick-card span{color:#aebeb6;font-size:14px}
.quick-card:hover{transform:translateY(-2px);border-color:rgba(89,214,163,.45)}
.section{padding:30px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}
.section-head h2{font-size:30px;margin:0}
.section-head p{color:var(--muted);margin:0;max-width:600px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.info-panel{background:var(--panel);border:1px solid rgba(89,214,163,.14);border-radius:18px;padding:24px}
.info-panel h2,.info-panel h3{margin-top:0}
.info-panel p{color:#c5d3cd}
.info-list{display:grid;gap:10px;margin-top:18px}
.info-list a{display:flex;justify-content:space-between;gap:12px;text-decoration:none;padding:12px 14px;background:#111820;border:1px solid rgba(89,214,163,.12);border-radius:12px;color:#dce9e3}
.info-list a span{color:#81978c}
.banner-note{margin:36px 0;padding:20px 24px;background:linear-gradient(90deg,rgba(89,214,163,.12),rgba(233,214,164,.05));border:1px solid rgba(89,214,163,.18);border-radius:16px;color:#cbd8d2}
.article-wrap{display:grid;grid-template-columns:minmax(0,790px) 260px;gap:34px;align-items:start;padding:28px 0 52px}
.article{min-width:0}
.breadcrumb{font-size:14px;color:#7e9188;margin-bottom:12px}
.breadcrumb a{color:#9fb7ab;text-decoration:none}
.article h1{font-size:clamp(30px,4vw,44px);line-height:1.2;margin:10px 0 18px}
.article h2{font-size:25px;margin:34px 0 12px;color:var(--mint)}
.article p{font-size:17px;color:#d9e3de;margin:0 0 16px}
.article .lead{font-size:18px;color:#aebfb7}
.article .media{margin:24px 0}
.side-index{position:sticky;top:114px;background:#10171d;border:1px solid rgba(89,214,163,.14);border-radius:16px;padding:18px}
.side-index strong{display:block;margin-bottom:10px;color:var(--sand)}
.side-index a{display:block;text-decoration:none;color:#aebeb6;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.side-index a:last-child{border-bottom:0}
.steps{display:grid;gap:12px;margin:22px 0}
.step{display:grid;grid-template-columns:38px 1fr;gap:14px;background:#111820;border:1px solid rgba(89,214,163,.13);border-radius:14px;padding:16px}
.step-num{width:38px;height:38px;border-radius:12px;background:rgba(89,214,163,.15);color:var(--mint);display:grid;place-items:center;font-weight:900}
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:26px 0}
.related a{padding:14px;border:1px solid rgba(89,214,163,.16);border-radius:12px;text-decoration:none;color:#d8e4de;background:#111820}
.qa details{background:#111820;border:1px solid rgba(89,214,163,.14);border-radius:14px;padding:16px 18px;margin:12px 0}
.qa summary{color:var(--mint);font-weight:800;cursor:pointer}
.directory{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.directory a{padding:16px;border-radius:14px;text-decoration:none;background:#111820;border:1px solid rgba(89,214,163,.13);color:#e8f0ec}
.directory a small{display:block;color:#81948b;margin-top:4px}
.site-footer{background:#07100c;border-top:1px solid rgba(89,214,163,.18);margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px;padding:40px 0 26px}
.footer-grid h2{font-size:15px;color:var(--sand);margin:0 0 10px}
.footer-grid a{display:block;color:#9fb0a8;text-decoration:none;margin:6px 0;font-size:14px}
.footer-grid p{color:#8ca096;font-size:14px}
.footer-brand img{height:42px;width:auto;object-fit:contain;margin-bottom:10px}
.legal-note{border-top:1px solid rgba(255,255,255,.05);padding:16px 0 28px;color:#71847b;font-size:13px;display:flex;justify-content:space-between;gap:20px}
.mobile-tabs{display:none}
@media(max-width:980px){
  .topline{display:none}
  .header-grid{grid-template-columns:58px 1fr 76px;height:64px}
  .menu-toggle{display:block;justify-self:start}
  .brand{justify-self:center}.brand img{height:34px;max-width:135px}
  .main-nav,.topic-rail{display:none}
  .account-btn{padding:8px 13px;font-size:14px}
  .mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#0d151b;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;overflow-y:auto;box-shadow:18px 0 45px rgba(0,0,0,.45)}
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.60);z-index:11000;opacity:0;pointer-events:none}
  .drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid rgba(89,214,163,.16)}
  .drawer-head strong{color:var(--mint)}
  .drawer-close{background:none;border:1px solid rgba(89,214,163,.25);color:var(--mint);border-radius:10px;padding:5px 10px;font-size:22px}
  .drawer-section{padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.05)}
  .drawer-section span{display:block;color:#72877d;font-size:12px;margin-bottom:6px}
  .drawer-section a{display:block;color:#dce8e2;text-decoration:none;padding:8px 0}
  body.drawer-open{overflow:hidden}
  .hero-layout,.split{grid-template-columns:1fr}
  .hero{padding-top:34px}
  .visual-frame{max-width:760px}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-wrap{grid-template-columns:1fr}
  .side-index{position:static}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mobile-tabs{display:grid;position:fixed;left:0;right:0;bottom:0;z-index:9500;grid-template-columns:repeat(4,1fr);background:#07100c;border-top:1px solid rgba(89,214,163,.35)}
  .mobile-tabs a{text-align:center;text-decoration:none;color:#c5d4cd;padding:10px 4px;font-size:13px}
  .site-main{padding-bottom:58px}
}
@media(max-width:640px){
  .shell{width:min(100% - 24px,1180px)}
  .hero h1{font-size:34px}
  .hero p{font-size:16px}
  .quick-grid{grid-template-columns:1fr 1fr;gap:10px}
  .quick-card{padding:16px;min-height:130px}
  .section-head{display:block}.section-head p{margin-top:8px}
  .split,.directory,.related{grid-template-columns:1fr}
  .article h1{font-size:30px}
  .article p{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:20px}
  .legal-note{display:block}
}