:root{--blue:#2563eb;--cyan:#06b6d4;--ink:#0f172a;--slate:#475569;--line:#e2e8f0}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,Arial,sans-serif;color:var(--ink);line-height:1.65;background:#fff}
a{color:var(--blue)}
header{border-bottom:1px solid var(--line)}
.wrap{max-width:760px;margin:0 auto;padding:0 24px}
nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.doc{padding:52px 0 72px}
.doc h1{font-size:34px;letter-spacing:-.02em;margin-bottom:8px}
.doc .upd{color:var(--slate);font-size:14px;margin-bottom:34px}
.doc h2{font-size:20px;margin:30px 0 10px}
.doc p,.doc li{color:#334155;font-size:16px;margin-bottom:12px}
.doc ul{margin:0 0 12px 22px}
.doc table{border-collapse:collapse;width:100%;margin:8px 0 18px;font-size:15px}
.doc th,.doc td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.doc th{background:#f8fafc}
footer{border-top:1px solid var(--line);color:#64748b;font-size:14px;padding:28px 0}
footer a{color:#475569}