:root{--fg:#20242b;--muted:#6b7280;--bg:#ffffff;--line:#eaecef;--accent:#4a5fd0}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);
     font:15px/1.75 -apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif}
.wrap{max-width:820px;margin:0 auto;padding:0 24px}
header{display:flex;align-items:center;gap:10px;padding:26px 0 18px;border-bottom:1px solid var(--line)}
header h1{font-size:17px;margin:0;font-weight:600}
main{padding:22px 0 40px}
h2{font-size:15px;margin:26px 0 8px;color:#111}
p{color:#3d444d}
ol,ul{padding-left:20px;margin:8px 0}
li{margin:4px 0}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#f2f3f5;padding:1px 5px;border-radius:4px;font-size:13px}
.log li{color:var(--muted)}
.log span{display:inline-block;width:92px;color:#9aa0a6;font-variant-numeric:tabular-nums}
footer{padding:18px 0 40px;border-top:1px solid var(--line);color:#9aa0a6;font-size:12px}