:root{font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:#102443;background:#f5f8fc}body{margin:0}main{width:min(760px,calc(100% - 40px));margin:48px auto;padding:46px;background:#fff;border:1px solid #d9e3f1;border-radius:24px;box-shadow:0 20px 55px rgba(20,50,90,.08)}a{color:#155bea;font-weight:800;text-decoration:none}h1{font-size:40px;margin:38px 0 6px}h2{font-size:21px;margin:30px 0 8px}p{color:#536984;line-height:1.85}.updated{color:#8796aa}@media(max-width:600px){main{margin:18px auto;padding:25px}h1{font-size:32px}}