:root{--bg:#f6f8fc;--surface:#fff;--text:#101322;--muted:#525a73;--line:#e2e6f0;--brand:#2547d0;--accent:#00a5a0}
@media (prefers-color-scheme:dark){:root{--bg:#0b0d14;--surface:#161a25;--text:#f2f4fa;--muted:#a6aec5;--line:#272d3d;--brand:#7a93ff;--accent:#2fd9d2}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
header{background:linear-gradient(160deg,#14247a,#274cd8 55%,#009c9c);color:#fff;padding:44px 20px 40px}
header .wrap{max-width:820px;margin:0 auto;display:flex;gap:18px;align-items:center;flex-wrap:wrap}
header img{width:76px;height:76px;border-radius:18px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
header h1{margin:0;font-size:1.6rem;line-height:1.25}
header p{margin:6px 0 0;opacity:.9;font-size:.95rem}
nav{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
nav .wrap{max-width:820px;margin:0 auto;padding:12px 20px;display:flex;gap:18px;flex-wrap:wrap}
nav a{color:var(--brand);text-decoration:none;font-weight:600;font-size:.92rem}
nav a:hover{text-decoration:underline}
main{max-width:820px;margin:0 auto;padding:28px 20px 72px}
h2{font-size:1.25rem;margin:34px 0 10px;line-height:1.3}
h3{font-size:1.02rem;margin:22px 0 6px}
p,li{color:var(--text)}
.muted{color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:18px 0}
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.94rem}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:rgba(37,71,208,.08)}
a{color:var(--brand)}
footer{border-top:1px solid var(--line);padding:26px 20px;color:var(--muted);font-size:.86rem}
footer .wrap{max-width:820px;margin:0 auto}
.badge{display:inline-block;background:rgba(0,165,160,.14);color:var(--accent);border-radius:999px;padding:3px 11px;font-size:.8rem;font-weight:700}
ul{padding-left:20px}