:root{--bg:#f7f7fa;--card:#fff;--ink:#1d1d24;--muted:#5d5d6b;--line:#e6e6ee;--brand:#ff2e88;--brand-ink:#c0115f}
@media (prefers-color-scheme:dark){:root{--bg:#121216;--card:#1b1b22;--ink:#ececf2;--muted:#a3a3b2;--line:#2c2c36;--brand:#ff4f9c;--brand-ink:#ff7ab4}}
*{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}
a{color:var(--brand-ink)}
header.top{display:flex;align-items:center;justify-content:space-between;gap:12px;max-width:860px;margin:0 auto;padding:20px 16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;letter-spacing:.04em;font-size:20px}
.brand img{width:34px;height:34px;border-radius:9px}
.lang{font-size:14px;text-decoration:none;border:1px solid var(--line);padding:6px 12px;border-radius:999px;color:var(--muted)}
main{max-width:860px;margin:0 auto 40px;padding:32px 20px;background:var(--card);border:1px solid var(--line);border-radius:18px}
@media (max-width:600px){main{margin:0 8px 32px;padding:22px 16px}}
h1{font-size:30px;line-height:1.2;margin:0 0 6px}
h2{font-size:20px;margin:34px 0 8px;padding-top:12px;border-top:1px solid var(--line)}
h3{font-size:16px;margin:18px 0 4px}
.meta{color:var(--muted);font-size:14px;margin:0 0 20px}
.box{background:color-mix(in srgb,var(--brand) 8%,transparent);border-left:4px solid var(--brand);padding:12px 16px;border-radius:10px;margin:18px 0}
table{width:100%;border-collapse:collapse;font-size:15px;margin:10px 0}
td,th{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--bg)}
.tablewrap{overflow-x:auto}
nav.toc{font-size:15px;columns:2;column-gap:28px;margin:10px 0 0}
@media (max-width:600px){nav.toc{columns:1}}
nav.toc a{display:block;padding:2px 0;text-decoration:none}
footer{max-width:860px;margin:0 auto;padding:0 16px 40px;color:var(--muted);font-size:14px;text-align:center}
footer a{margin:0 8px}