:root{--bg:#fbf8f2;--fg:#3a3631;--muted:#6f675e;--line:#e4ddd1;--accent:#8a6d3b}
@media (prefers-color-scheme:dark){:root{--bg:#1f1d1a;--fg:#ece6dc;--muted:#b3aa9d;--line:#3a3631;--accent:#d4b47a}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.7 system-ui,-apple-system,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif}
main{max-width:760px;margin:0 auto;padding:32px 16px 64px}h1{font-size:1.6rem;line-height:1.3;margin:0 0 4px}h2{font-size:1.15rem;margin:32px 0 8px;padding-top:16px;border-top:1px solid var(--line)}
p,li{color:var(--fg)}.muted{color:var(--muted);font-size:.9rem}a{color:var(--accent)}nav{display:flex;gap:16px;margin:0 0 24px;font-size:.95rem}
code{font-size:.9em;background:rgba(138,109,59,.12);padding:1px 5px;border-radius:4px}ul{padding-left:1.3em}footer{margin-top:48px;font-size:.85rem;color:var(--muted)}