:root{
  --paper:#f6f3ea; --ink:#22302a; --ink-2:#5c6a63;
  --line:#e0dbcd; --seal:#94382c; --marker:#cbdc85;
  
  --link:#94382c;
  
  --hl:#cbdc85;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font:16px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  padding:0 20px 72px;
}
.wrap{max-width:680px;margin:0 auto}
header{padding:56px 0 8px}

.mark{
  width:56px;height:56px;display:block;border-radius:11px;
  margin-bottom:20px;
}
h1{font-size:27px;margin:0 0 6px;letter-spacing:1px}
.sub{color:var(--ink-2);font-size:15px;margin:0}
h2{font-size:18px;margin:40px 0 10px;letter-spacing:.5px}
h3{font-size:15px;margin:24px 0 6px}
p,li{color:#33433b}
a{color:var(--link);text-underline-offset:3px}
ul{padding-left:1.25em}
li{margin:4px 0}
.card{
  background:#fffdf7;border:1px solid var(--line);border-radius:16px;
  padding:20px 22px;margin:22px 0;
}
.card p{margin:0 0 8px}
.card p:last-child{margin:0}
.k{display:inline-block;min-width:5.2em;color:var(--ink-2);font-size:14px}
.hl{background:linear-gradient(transparent 62%,var(--hl) 62%);padding:0 2px}
.en{color:var(--ink-2);font-size:13.5px;line-height:1.7}
footer{margin-top:56px;padding-top:22px;border-top:1px solid var(--line);color:var(--ink-2);font-size:13px}
nav{margin:28px 0 0;font-size:14px}
nav a{margin-right:18px}
@media (prefers-color-scheme:dark){
  :root{--paper:#121614;--ink:#e6e3d8;--ink-2:#9aa79f;--line:#2b332e;--hl:rgba(203,220,133,.30);--link:#e3968a}
  .card{background:#181d1a}
  p,li{color:#cfd6cf}
}