:root{color-scheme:light;--paper:#f6f1e7;--ink:#272924;--red:#dd4a2b}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC",sans-serif;line-height:1.85}main{max-width:760px;margin:auto;padding:40px 24px 60px}nav{display:flex;gap:20px;flex-wrap:wrap;font-size:14px}a{color:#a42d16;text-underline-offset:4px}header{padding:36px 0 22px;border-bottom:3px solid var(--ink)}.brand{font-size:12px;letter-spacing:2px;font-weight:800}h1{font-size:clamp(28px,6vw,44px);line-height:1.3;margin:12px 0}h2{font-size:22px;margin:30px 0 8px}p,ul{margin:10px 0}.muted{color:#5d6056;font-size:14px}.card{margin-top:26px;padding:20px 24px;background:#fff9eb;border:2px solid var(--ink);border-radius:16px}footer{margin-top:36px;padding-top:20px;border-top:1px solid #b3b3a6;font-size:14px}li{margin:8px 0}a:focus-visible{outline:3px solid var(--red);outline-offset:4px}