body{margin:0;background:#f3f3f3;color:#202020;font:17px/1.7 system-ui,-apple-system,"PingFang HK",sans-serif}header{background:#e04242;border-bottom:5px solid #ffe000;padding:20px}header a{color:#fff;font-size:26px;font-weight:800;text-decoration:none}main{max-width:850px;margin:28px auto;padding:0 20px}h1{font-size:clamp(26px,5vw,34px)}h2{color:#b52e2e;font-size:21px}section{background:white;padding:20px;border:1px solid #ddd;border-radius:14px;margin:20px 0}a{color:#a32222;text-underline-offset:3px}a:focus-visible{outline:3px solid #1976a5}li{margin:10px 0}p,a{overflow-wrap:anywhere}