:root{color-scheme:light dark;--accent:#8d12ad;--text:#242029;--muted:#6b6370;--paper:#fff;--back:#faf7fb;--line:#e9dfec;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--back);color:var(--text);font-size:17px;line-height:1.85}a{color:var(--accent);text-underline-offset:.2em}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}.skip{position:absolute;left:16px;top:-100px}.skip:focus{top:10px;background:var(--paper);padding:10px;z-index:2}
header{border-bottom:1px solid var(--line);background:var(--paper)}.bar{max-width:960px;margin:auto;padding:22px 28px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}.brand{font-size:21px;font-weight:750;text-decoration:none;letter-spacing:-.03em}nav{display:flex;gap:22px;flex-wrap:wrap;font-size:14px}nav a{text-decoration:none}nav a[aria-current=page]{text-decoration:underline;font-weight:650}
main{max-width:800px;margin:50px auto 70px;padding:42px 48px;background:var(--paper);border:1px solid var(--line);border-radius:18px}.eyebrow{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}h1{font-size:clamp(30px,6vw,44px);line-height:1.3;letter-spacing:-.035em;margin:14px 0}h2{font-size:21px;line-height:1.5;margin:36px 0 12px}p{margin:0 0 18px}ul{padding-left:24px}.version{color:var(--muted);font-size:14px;margin-bottom:30px}.intro{font-size:19px}.toc{border-block:1px solid var(--line);padding:18px 0;margin:28px 0;display:flex;gap:8px 22px;flex-wrap:wrap;font-size:14px}.toc a{text-decoration:none}section{scroll-margin-top:24px}.links{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:30px 0}.card{border:1px solid var(--line);border-radius:12px;padding:24px;text-decoration:none;font-size:21px;font-weight:650}.card span{display:block;font-size:14px;color:var(--muted);font-weight:400;margin-top:8px}footer{max-width:800px;margin:0 auto 40px;padding:0 28px;color:var(--muted);font-size:13px;display:flex;gap:12px 24px;justify-content:space-between;flex-wrap:wrap}footer a{color:var(--muted)}
@media(max-width:600px){.bar{padding:18px 20px}nav{gap:14px}main{margin:24px 14px 36px;padding:28px 22px;border-radius:12px}.links{grid-template-columns:1fr}.intro{font-size:17px}}
@media(prefers-color-scheme:dark){:root{--accent:#dd8df2;--text:#f2edf4;--muted:#b6abbc;--paper:#201b24;--back:#151217;--line:#3b3041}}
@media print{body{background:white;color:black}header,footer,.toc,.skip{display:none}main{border:0;margin:0;padding:0;max-width:none}a{color:inherit}}