body{margin:0;background:#f3f5f7;color:#18212b;font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.doc{max-width:860px;margin:28px auto;padding:24px;background:white;border:1px solid #d7dde4;border-radius:10px}
h1{margin-top:0}
h2{margin-top:28px;color:#1d4f84}
a{color:#1d4f84}
code{background:#eef2f6;padding:2px 4px;border-radius:4px}
li{margin:6px 0}