:root{color-scheme:light;--ink:#122d3c;--muted:#536d77;--accent:#258bac}*{box-sizing:border-box}body{margin:0;background:#fdfffe;color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}header,main,footer{max-width:900px;margin:auto;padding:24px}header{border-bottom:1px solid #e2efec}header a{font-weight:750;text-decoration:none;color:var(--ink)}main{padding-top:42px;padding-bottom:70px}h1{font-size:clamp(32px,5vw,46px);line-height:1.2;margin:0 0 12px}h2{font-size:22px;margin:36px 0 10px}p,li{color:var(--muted)}a{color:var(--accent)}.meta{font-size:14px;color:#698087}footer{border-top:1px solid #e2efec;font-size:13px;color:#698087}footer a{margin-right:18px}.panel{background:#edf8f7;border-radius:20px;padding:20px 24px;margin:24px 0}ul{padding-left:24px}@media(max-width:600px){header,main,footer{padding-left:20px;padding-right:20px}}