:root{color-scheme:light;--paper:#f8f3e9;--ink:#263a35;--muted:#63716b;--line:#d7ddd2;--red:#a04738}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--red)}header,main,footer{max-width:940px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:20px}.brand{text-decoration:none;font:600 22px/1.5 "Songti SC",serif;letter-spacing:3px}.seal{display:inline-grid;place-items:center;background:var(--red);color:white;border-radius:5px;width:34px;height:34px;margin-right:10px;font-size:16px;letter-spacing:0}nav{display:flex;gap:22px;font-size:14px}nav a{text-decoration:none}main{padding-top:54px;padding-bottom:68px}.eyebrow{color:var(--red);font-size:12px;letter-spacing:3px}h1,h2,h3{font-family:"Songti SC","STSong",serif;font-weight:600;line-height:1.4}h1{font-size:42px;margin:12px 0 20px}h2{font-size:24px;margin:38px 0 14px}h3{font-size:20px;margin-top:0}.lead{font-size:19px;color:var(--muted);max-width:700px}.meta{font-size:14px;color:var(--muted)}.note{border-left:3px solid var(--red);padding:12px 22px;background:#edeadf;margin:28px 0}.grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:36px}.card{border:1px solid var(--line);border-radius:12px;padding:28px;background:#fffcf6}.card p{color:var(--muted)}.button{display:inline-block;padding:8px 18px;border:1px solid var(--ink);border-radius:5px;text-decoration:none;font-size:14px}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:13px}details{border-bottom:1px solid var(--line);padding:18px 0}summary{cursor:pointer;font-weight:600}details p{color:var(--muted)}li{margin:8px 0}article{max-width:760px}a:focus-visible,summary:focus-visible{outline:3px solid var(--red);outline-offset:5px}@media(max-width:600px){header{align-items:flex-start;flex-direction:column;gap:12px}main{padding-top:32px}h1{font-size:32px}.grid{grid-template-columns:1fr}footer{flex-direction:column;gap:4px}.brand{font-size:20px}nav{gap:26px}}