:root{color-scheme:light;--ink:#29372f;--muted:#617267;--accent:#356c52;--line:#dce5dd;--paper:#fffef9}*{box-sizing:border-box}body{margin:0;background:#f3f5ef;color:var(--ink);font:17px/1.9 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--accent);text-underline-offset:4px;overflow-wrap:anywhere}header{max-width:1100px;margin:auto;padding:26px 28px;display:flex;justify-content:space-between;gap:20px;align-items:center}header a{text-decoration:none;font-weight:600}main{max-width:940px;margin:20px auto 70px;padding:52px 64px;background:var(--paper);border:1px solid var(--line);border-radius:22px}h1{font-size:clamp(30px,5vw,48px);line-height:1.3;letter-spacing:-1px;margin:12px 0 18px}h2{font-size:23px;margin-top:36px}p{margin:14px 0}.eyebrow{font-size:13px;letter-spacing:2px;color:var(--accent);font-weight:700}.meta,footer{color:var(--muted);font-size:14px}.intro{font-size:19px}.note{padding:20px 24px;background:#eaf0e7;border-radius:12px}.links{display:flex;flex-wrap:wrap;gap:14px 26px}.card{border-top:1px solid var(--line);margin-top:30px;padding-top:8px}.button{display:inline-block;padding:10px 22px;background:var(--accent);color:white;border-radius:9px;text-decoration:none}footer{max-width:940px;margin:0 auto 36px;padding:0 28px}li{margin-bottom:10px}nav{border-block:1px solid var(--line);padding:20px 0;margin:28px 0}a:focus-visible{outline:3px solid #d08a49;outline-offset:5px}@media(max-width:650px){body{font-size:16px}header{padding:20px}main{margin:8px 12px 32px;padding:30px 22px;border-radius:16px}h2{font-size:21px}header .meta{display:none}}@media print{body,main{background:white}header,nav{display:none}main{border:0;margin:0;padding:0}}