:root{--label:#000;--label2:rgba(60,60,67,.6);--sep:rgba(60,60,67,.18);--pink:#FF2D55;--bg:#fff}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--label);font:17px/1.62 -apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased}
.wrap{max-width:720px;margin:0 auto;padding:28px 20px calc(60px + env(safe-area-inset-bottom))}
h1{font-size:30px;line-height:1.15;letter-spacing:-.6px;margin:0 0 8px}
.meta{font-size:13px;color:var(--label2);margin:0 0 26px}
h2{font-size:20px;letter-spacing:-.3px;margin:34px 0 10px;padding-top:18px;border-top:.5px solid var(--sep)}
h3{font-size:17px;margin:20px 0 6px}
p,li{font-size:16px;color:rgba(0,0,0,.86);margin:8px 0}
ul,ol{padding-left:22px}
a{color:var(--pink);text-decoration:none}
.note{background:#F2F2F7;border-radius:10px;padding:14px 16px;font-size:15px;color:rgba(0,0,0,.72);margin:16px 0}
table{width:100%;border-collapse:collapse;margin:12px 0;font-size:14px}
th,td{text-align:left;padding:9px 8px;border-bottom:.5px solid var(--sep);vertical-align:top}
th{color:var(--label2);font-weight:500;font-size:13px}
code{background:#F2F2F7;border-radius:5px;padding:1px 5px;font-size:14px}
footer{margin-top:44px;padding-top:18px;border-top:.5px solid var(--sep);font-size:13px;color:var(--label2)}
@media(prefers-color-scheme:dark){
  :root{--label:#fff;--label2:rgba(235,235,245,.6);--sep:rgba(84,84,88,.65);--bg:#000}
  p,li{color:rgba(255,255,255,.86)}
  .note,code{background:#1C1C1E;color:rgba(255,255,255,.75)}
}