:root{--ink:#0b0e14;--muted:#5d6675;--line:#e2e5ea;--bg:#fbfbfc;--brand:#1f4bd8;--card:#fff}
*{box-sizing:border-box}body{margin:0;font:15px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}
.wrap{max-width:960px;margin:0 auto;padding:0 18px}header{border-bottom:1px solid var(--line);background:var(--card)}
header .wrap{display:flex;align-items:center;gap:18px;height:56px}header a{color:var(--ink);text-decoration:none}
.brand{font-weight:700}nav a{margin-right:14px;color:var(--muted);font-size:14px}
main{padding:26px 0 60px}h1{font-size:24px;line-height:1.25;margin:0 0 6px}h2{font-size:16px;margin:24px 0 8px}
pre{background:#f3f4f7;border:1px solid var(--line);padding:12px;border-radius:6px;overflow-x:auto;font-size:13px;white-space:pre-wrap;word-break:break-word}
table{width:100%;border-collapse:collapse;font-size:14px}td,th{border-bottom:1px solid var(--line);padding:7px 8px;text-align:left;vertical-align:top}
.tag{display:inline-block;font-size:11px;padding:1px 7px;border-radius:10px;background:#eef1f7;color:#33415c;margin-right:6px}
.muted{color:var(--muted)}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:6px 18px;font-size:14px}
footer{border-top:1px solid var(--line);padding:20px 0 40px;color:var(--muted);font-size:13px}