/* 公開網站的樣式。顏色一律來自 tokens.css（build 時從 packages/ui 複製過來）。 */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif; font-size: 16px; line-height: 1.75; }
a { color: var(--accent-text); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.top { border-bottom: 1px solid var(--border); background: var(--surface); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 18px; color: var(--accent); text-decoration: none; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 18px; border-radius: 8px; background: var(--accent); color: var(--accent-fg); text-decoration: none; font-weight: 600; }
.btn:hover { background: var(--accent-hover); }
main { padding: 40px 0 56px; }
.hero h1 { margin: 0 0 12px; font-size: 32px; line-height: 1.3; }
.hero p { margin: 0 0 24px; color: var(--text-muted); font-size: 18px; }
.features { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.features li { padding: 18px 20px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.features strong { display: block; margin-bottom: 4px; }
.features span { color: var(--text-muted); font-size: 15px; }
.doc h1 { margin: 0 0 4px; font-size: 28px; }
.doc .updated { margin: 0 0 32px; color: var(--text-subtle); font-size: 14px; }
.doc h2 { margin: 36px 0 8px; font-size: 20px; }
.doc ul { padding-left: 1.4em; }
.doc li { margin: 4px 0; }
footer.bottom { border-top: 1px solid var(--border); padding: 24px 0; color: var(--text-subtle); font-size: 14px; }
footer.bottom .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; }