:root{--bg:#f6f7fb;--fg:#14213d;--muted:#5b6475;--card:#fff;--accent:#1f5fff;--line:#e3e6ef}
@media (prefers-color-scheme:dark){:root{--bg:#0b1324;--fg:#e8ecf5;--muted:#9aa4b8;--card:#121c33;--accent:#6b9bff;--line:#24304d}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 16px 64px}header{display:flex;align-items:center;gap:12px;margin-bottom:24px}
header img{width:48px;height:48px;border-radius:12px}header a{color:inherit;text-decoration:none;font-weight:700;font-size:20px}
nav{margin-left:auto;display:flex;gap:16px}nav a{color:var(--muted);text-decoration:none;font-size:15px}nav a:hover{color:var(--accent)}
h1{font-size:32px;line-height:1.2;margin:8px 0 12px}h2{font-size:20px;margin:28px 0 8px}p,li{color:var(--fg)}.muted{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin:16px 0}a{color:var(--accent)}
table{border-collapse:collapse;width:100%;font-size:15px}td,th{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}
footer{margin-top:40px;color:var(--muted);font-size:14px}