:root{--bg:#eef2f8;--fg:#14213d;--muted:#5a6478;--line:#d5dbe6;--sign:#1b4f9c;--card:#fff}
@media (prefers-color-scheme:dark){:root{--bg:#0d1320;--fg:#e6ebf4;--muted:#9aa6bb;--line:#2a3548;--sign:#3f7bd6;--card:#151d2c}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 Overpass,system-ui,-apple-system,"Segoe UI",sans-serif}
header{background:var(--sign);color:#fff;padding:16px}header a{color:#fff;text-decoration:none;font-weight:900;font-size:20px}
main{max-width:760px;margin:0 auto;padding:20px 16px 60px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px 22px}
h1{font-size:26px;margin:0 0 4px}h2{font-size:19px;margin:26px 0 6px}p,li{color:var(--fg)}.muted{color:var(--muted);font-size:14px}a{color:var(--sign)}
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{max-width:760px;margin:0 auto;padding:0 16px 30px;font-size:14px;color:var(--muted)}footer a{margin-right:14px}