:root{--bg:#ffffff;--fg:#1a1d29;--muted:#5b6275;--line:#e4e7ef;--brand:#5b4bff;--card:#f6f7fb}
@media (prefers-color-scheme:dark){:root{--bg:#0e1017;--fg:#e8eaf2;--muted:#9aa1b5;--line:#252a3a;--brand:#8a7dff;--card:#161a26}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand)}
header.site{border-bottom:1px solid var(--line);padding:14px 20px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
header.site .logo{font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--fg)}
header.site nav a{margin-right:16px;text-decoration:none;font-size:.95rem}
main{max-width:760px;margin:0 auto;padding:32px 20px 56px}
h1{font-size:2rem;line-height:1.25;margin:.2em 0 .4em}
h2{font-size:1.4rem;margin:2em 0 .5em}
h3{font-size:1.1rem;margin:1.5em 0 .3em}
.meta{color:var(--muted);font-size:.9rem;margin-bottom:1.5em}
.note{background:var(--card);border-left:4px solid var(--brand);padding:12px 16px;border-radius:6px;margin:1.5em 0}
table{border-collapse:collapse;width:100%;margin:1em 0;font-size:.95rem}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--card)}
.cards{display:grid;gap:14px;margin:1.5em 0}
.cards a{display:block;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 16px;text-decoration:none;color:var(--fg)}
.cards a strong{display:block;color:var(--brand);margin-bottom:2px}
.cards a span{color:var(--muted);font-size:.93rem}
footer.site{border-top:1px solid var(--line);padding:24px 20px;color:var(--muted);font-size:.9rem;text-align:center}
footer.site a{margin:0 8px}
code{background:var(--card);padding:1px 6px;border-radius:4px;font-size:.92em}