:root{--fg:#1d1d1f;--muted:#5f6368;--bg:#fff;--accent:#0b6bcb;--line:#e5e7eb;--code:#f6f8fa}
@media (prefers-color-scheme:dark){:root{--fg:#e8eaed;--muted:#9aa0a6;--bg:#121314;--accent:#5aa9ff;--line:#2a2c2f;--code:#1c1e21}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.75 -apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC","Microsoft JhengHei",sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:0 18px}
header.site{border-bottom:1px solid var(--line);padding:14px 0}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px}
.brand{font-weight:700;color:var(--fg);text-decoration:none;font-size:1.1rem}
nav a{color:var(--muted);text-decoration:none;margin-left:14px;font-size:.95rem}nav a:hover{color:var(--accent)}
main{padding:28px 0 48px}h1{font-size:1.75rem;line-height:1.35;margin:.2em 0 .4em}
h2{font-size:1.3rem;margin-top:2em;border-bottom:1px solid var(--line);padding-bottom:.2em}h3{font-size:1.1rem;margin-top:1.6em}
a{color:var(--accent)}.meta{color:var(--muted);font-size:.9rem}
.note{border-left:4px solid var(--accent);background:var(--code);padding:10px 14px;margin:1.2em 0;font-size:.95rem}
.warn{border-left-color:#d97706}
.table-wrap{overflow-x:auto;margin:1em 0}table{border-collapse:collapse;width:100%;font-size:.92rem;min-width:560px}
th,td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:top}th{background:var(--code)}
pre{background:var(--code);padding:12px 14px;overflow-x:auto;border-radius:6px;font-size:.85rem;line-height:1.55}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}:not(pre)>code{background:var(--code);padding:1px 5px;border-radius:4px}
.cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin:1.4em 0}
.card{border:1px solid var(--line);border-radius:10px;padding:14px 16px}.card h3{margin:.1em 0 .3em;font-size:1.05rem}.card a{text-decoration:none}
.card p{margin:0;color:var(--muted);font-size:.93rem}
footer.site{border-top:1px solid var(--line);padding:18px 0;color:var(--muted);font-size:.85rem}footer.site a{color:var(--muted)}
.sources li{font-size:.9rem;word-break:break-all}