:root{--bg:#f6f7fb;--card:#fff;--ink:#1b1d2a;--mute:#5b6075;--accent:#2f6df6;--line:#e3e6ef}
@media (prefers-color-scheme:dark){:root{--bg:#12131a;--card:#1b1d27;--ink:#ecedf3;--mute:#a3a8bc;--accent:#7aa2ff;--line:#2b2e3b}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 16px 64px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px 28px;margin-bottom:20px}
h1{font-size:1.7rem;margin:0 0 4px}h2{font-size:1.2rem;margin:28px 0 8px}h3{font-size:1.02rem;margin:18px 0 6px}
.sub{color:var(--mute);margin:0 0 8px}a{color:var(--accent)}
nav{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:20px;font-weight:600}
.lang{display:flex;gap:8px;margin:8px 0 0}.lang a{padding:4px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none}
table{width:100%;border-collapse:collapse;font-size:.94rem}th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--mute);font-weight:600}
.box{border-left:4px solid var(--accent);padding:10px 14px;background:color-mix(in srgb,var(--accent) 8%,transparent);border-radius:6px}
footer{color:var(--mute);font-size:.88rem;text-align:center}