:root{--bg:#0b0e14;--card:#111827;--muted:#9ca3af;--text:#e5e7eb;--link:#93c5fd;--accent:#34d399;}
*{box-sizing:border-box} body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.55}
a{color:var(--link);text-decoration:none} a:hover{text-decoration:underline}
header{position:sticky;top:0;background:rgba(11,14,20,.9);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{max-width:1100px;margin:0 auto;display:flex;gap:14px;align-items:center;justify-content:space-between;padding:14px 18px}
.brand{display:flex;flex-direction:column}
.brand b{font-size:14px}
.brand span{font-size:12px;color:var(--muted)}
.menu{display:flex;gap:12px;flex-wrap:wrap;font-size:13px}
.container{max-width:1100px;margin:0 auto;padding:26px 18px}
.hero{display:grid;gap:10px;margin-bottom:18px}
.hero h1{margin:0;font-size:26px}
.hero p{margin:0;color:var(--muted);max-width:850px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{background:var(--card);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:14px}
.card h3{margin:0 0 6px 0;font-size:15px}
.card p{margin:0;color:var(--muted);font-size:13px}
.kbd{display:inline-block;border:1px solid rgba(255,255,255,.18);border-bottom-color:rgba(255,255,255,.28);border-radius:8px;padding:2px 8px;font-size:12px;color:var(--muted)}
hr{border:none;border-top:1px solid rgba(255,255,255,.08);margin:18px 0}
footer{color:var(--muted);font-size:12px;padding:24px 18px;border-top:1px solid rgba(255,255,255,.08)}
.badge{display:inline-block;background:rgba(52,211,153,.14);color:var(--accent);border:1px solid rgba(52,211,153,.25);padding:2px 8px;border-radius:999px;font-size:12px}
.meta{color:var(--muted);font-size:12px}
h2{margin:22px 0 10px 0;font-size:18px}
h3{margin:18px 0 8px 0;font-size:15px}
ul{margin:8px 0 0 18px}
li{margin:6px 0}
.tldr{border-left:3px solid rgba(52,211,153,.7);padding:10px 12px;background:rgba(52,211,153,.06);border-radius:10px}
small{color:var(--muted)}
input[type="search"]{width:100%;padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:#0f172a;color:var(--text);outline:none}
.results{margin-top:10px;display:grid;gap:10px}
.result{padding:12px;border-radius:12px;border:1px solid rgba(255,255,255,.08);background:rgba(17,24,39,.7)}
.result b{font-size:14px}
.result p{margin:6px 0 0 0;color:var(--muted);font-size:13px}