:root{--bg:#F6F9FC;--ink:#14263A;--muted:#4A5E72;--accent:#2F7FC1;--card:#FFFFFF;--line:#DCE6EF}
@media (prefers-color-scheme:dark){:root{--bg:#0F1A26;--ink:#E8EEF4;--muted:#A9B8C7;--accent:#6DB0E8;--card:#162433;--line:#24384C}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 20px 64px}
header{display:flex;align-items:center;gap:12px;margin-bottom:32px}
header img{width:48px;height:48px;border-radius:12px}
header a{color:var(--ink);text-decoration:none;font-weight:700;font-size:20px}
h1{font-size:32px;line-height:1.2;margin:0 0 8px}
h2{font-size:21px;margin:36px 0 8px}
p,li{color:var(--ink)}
.muted{color:var(--muted)}
a{color:var(--accent)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:20px 0}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;vertical-align:top;padding:10px 8px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600}
footer{margin-top:48px;font-size:14px;color:var(--muted)}
footer a{margin-right:16px}
@media (max-width:520px){h1{font-size:26px}table{font-size:14px}}