body{max-width:760px;margin:40px auto;padding:0 20px;font:16px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;color:#1C1C1E}
h1{color:#0A84FF}h2{margin-top:32px;font-size:19px}a{color:#0A84FF}
.muted{color:#8E8E93;font-size:14px}
.box{border:1px solid rgba(128,128,128,.3);border-radius:12px;padding:14px 18px;margin:24px 0}
@media (prefers-color-scheme: dark){body{background:#000;color:#F2F2F7}}