:root{--bg:#0b0f17;--panel:#0f1622;--card:#162132;--line:#1f2a3a;--text:#e8edf5;--muted:#9fb0c6;--dim:#6f8098;--gold:#f2c14e;--cyan:#5fe0ff;--ink:#1b1405}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--text);font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--gold);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
html[data-lang="zh"] [lang="en"],html[data-lang="en"] [lang="zh"]{display:none!important}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;z-index:20;background:rgba(11,15,23,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--gold);font-weight:800;letter-spacing:2px;font-size:19px;margin-right:auto;text-decoration:none!important}
.brand img{width:40px;height:40px}
.brand small{color:var(--muted);font-size:13px;letter-spacing:1px;font-weight:600}
nav.main{display:flex;gap:20px;font-size:14px}
nav.main a{color:var(--muted)}
nav.main a.on,nav.main a:hover{color:var(--text);text-decoration:none}
.lang{white-space:nowrap;background:none;border:1px solid #2c3a50;border-radius:14px;padding:3px 11px;color:var(--muted);font:inherit;font-size:13px;cursor:pointer}
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--gold);color:var(--ink);border-radius:22px;padding:9px 20px;font-weight:800;border:0;cursor:pointer;font:inherit;font-weight:800;text-decoration:none!important}
.btn.ghost{background:none;color:var(--gold);border:1px solid var(--gold)}
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center;padding:70px 0 50px}
.hero h1{font-size:44px;line-height:1.2;margin:0 0 16px}
.hero p{color:var(--muted);font-size:17px;margin:0}
.hero .cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.hero-logo{width:100%;max-width:380px;justify-self:center;filter:drop-shadow(0 0 50px #1f6fa855)}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding-bottom:50px}
.card{background:var(--card);border-radius:16px;padding:18px;color:var(--muted);font-size:14px}
.card b{display:block;color:var(--text);font-size:16px;margin-bottom:6px}
h2.sec{font-size:22px;margin:0 0 16px}
.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding-bottom:30px}
.article-card{background:var(--card);border-radius:16px;overflow:hidden;color:var(--text);display:block}
.article-card:hover{text-decoration:none;outline:1px solid #5fe0ff55}
.article-card .cover{height:120px;display:flex;align-items:center;justify-content:center;font-size:46px}
.article-card p{margin:12px 14px 4px;font-weight:700}
.article-card .d{margin:0 14px 14px;color:var(--dim);font-size:13px}
.offer{display:flex;align-items:center;gap:12px;border:1px solid #f2c14e88;border-radius:14px;padding:12px 16px;color:var(--text);margin:8px 0;background:var(--card)}
.offer:hover{text-decoration:none;border-color:var(--gold)}
.offer .t{font-weight:700}.offer .s{color:var(--dim);font-size:12px;display:block}
.tag{background:var(--gold);color:var(--ink);font-size:11px;font-weight:900;border-radius:7px;padding:1px 7px;margin-left:auto;white-space:nowrap}
footer.site{border-top:1px solid var(--line);margin-top:50px;padding:26px 0;font-size:13px;color:var(--dim)}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
footer.site a{color:var(--muted)}
footer.site .dev{margin-left:auto;display:flex;align-items:center;gap:10px}
footer.site .dev img{height:26px;background:#f5f0e6;border-radius:6px;padding:3px 6px}
.doc{max-width:760px;padding:50px 20px}
.doc h1{font-size:32px;line-height:1.3}
.doc h2{font-size:20px;margin-top:34px}
.doc p,.doc li{color:#cfd8e4}
.doc .meta{color:var(--dim);font-size:13px}
.notice{background:var(--card);border-left:3px solid var(--gold);padding:12px 16px;border-radius:8px;color:var(--muted);font-size:14px}
@media(max-width:800px){
 .hero{grid-template-columns:1fr;padding:40px 0 30px}.hero h1{font-size:32px}.hero-logo{max-width:220px;order:-1}
 .features{grid-template-columns:1fr 1fr}.articles{grid-template-columns:1fr}
 nav.main{display:none}header.site .btn{padding:8px 14px}header.site .wrap{gap:10px}.brand small{display:none}
 footer.site .dev{margin-left:0}
}