:root{color-scheme:light;font:16px/1.8 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#1b3730;background:#faf9f5}body{margin:0}main{max-width:860px;margin:auto;padding:48px 24px}nav{display:flex;justify-content:space-between;gap:20px}a{color:#256a50}h1{font-size:clamp(2.4rem,8vw,4rem);letter-spacing:-.04em;margin:10px 0}.eyebrow{margin-top:64px;font-size:.8rem;letter-spacing:.15em}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;margin:36px 0;padding:28px;background:white;border:1px solid #dce5dc;border-radius:16px}.button{display:inline-block;background:#214f3c;color:white;padding:10px 22px;text-decoration:none;border-radius:30px}a:focus-visible{outline:3px solid #4a8a68;outline-offset:5px}