:root{--ink:#193c35;--muted:#586a62;--brand:#176454;--brand-hover:#104c40;--tint:#e8f1eb;--border:#d9e2da;--focus:#397e69;font-family:Inter,-apple-system,BlinkMacSystemFont,Noto Sans TC,Microsoft JhengHei,sans-serif;color:var(--ink);background:#fcfaf5;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}h1{font-size:clamp(2rem,4vw,3.8rem);line-height:1.2;margin:.35em 0}h2{font-size:clamp(1.3rem,2.4vw,2rem);margin:.4em 0 1em}h3{margin:.5em 0}p{line-height:1.85;color:var(--muted)}.wrap{width:min(1170px,calc(100% - 40px));margin:auto}.header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);z-index:10}.header-inner{max-width:1290px;margin:auto;padding:14px 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