:root{--ink:#0F172A;--muted:#475569;--line:#E2E8F0;--bg:#F8FAFC;--card:#FFFFFF;--brand:#2563EB;--green:#15803D}
@media (prefers-color-scheme:dark){:root{--ink:#E2E8F0;--muted:#94A3B8;--line:#1E293B;--bg:#0B1120;--card:#111827;--brand:#60A5FA;--green:#4ADE80}}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand)}
header{border-bottom:1px solid var(--line);background:var(--card)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:14px}
.brand{font-weight:800;font-size:18px;color:var(--ink);text-decoration:none}
.brand span{color:var(--brand)}
nav a{margin-left:16px;font-size:14px;color:var(--muted);text-decoration:none}
nav a:hover{color:var(--brand)}
.wrap{max-width:860px;margin:0 auto;padding-inline:16px}
main{padding-block:32px 48px}
h1{font-size:30px;margin:0 0 6px}
h2{font-size:20px;margin:28px 0 8px}
p,li{color:var(--ink)}
.muted{color:var(--muted);font-size:14px}
ul{padding-left:20px}
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:12px 0}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:15px}
th{font-weight:700}
.note{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--green);border-radius:10px;padding:12px 14px;margin:14px 0}
footer{border-top:1px solid var(--line);padding-block:20px}
footer .wrap{font-size:13px;color:var(--muted)}
footer a{margin-right:14px}
@media (max-width:560px){nav a{margin-left:10px}h1{font-size:25px}th,td{padding:8px;font-size:14px}}