:root{
  --ink:#15181c; --sub:#5b6470; --line:#e4e7eb; --brand:#1a4d3e;
  --soft:#f5f7f6; --warn:#8a3b12;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:#fff;color:var(--ink);
  font:17px/1.9 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:720px;margin:0 auto;padding:24px 20px 72px}
.top{display:flex;justify-content:space-between;align-items:center;
  padding-bottom:14px;border-bottom:1px solid var(--line);font-size:14px;color:var(--sub)}
.top a{color:var(--sub)}
h1{font-size:27px;line-height:1.45;margin:26px 0 18px;letter-spacing:-.3px}
h2{font-size:19px;margin:34px 0 12px;padding-left:11px;border-left:4px solid var(--brand)}
p{margin:14px 0}
.answer{
  background:var(--soft);border-left:4px solid var(--brand);
  padding:16px 18px;margin:22px 0;font-size:17.5px;border-radius:0 6px 6px 0;
}
.answer b{color:var(--brand)}
table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15.5px}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left}
th{color:var(--sub);font-weight:500;background:#fafbfa}
td.num{font-variant-numeric:tabular-nums;font-weight:600}
.note{font-size:14px;color:var(--sub);margin-top:-8px}
ol,ul{padding-left:22px}
li{margin:8px 0}
.byline{
  margin-top:52px;padding-top:18px;border-top:1px solid var(--line);
  font-size:14.5px;color:var(--sub);line-height:1.8;
}
.byline strong{color:var(--ink)}
.related{margin-top:34px;padding-top:16px;border-top:1px dashed var(--line);font-size:15px}
.related h3{font-size:15px;color:var(--sub);font-weight:500;margin:0 0 10px}
.related li{margin:6px 0}
.list{list-style:none;padding:0;margin:18px 0}
.list li{border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin:12px 0}
.list a{font-weight:600;font-size:16.5px}
.list span{display:block;color:var(--sub);font-size:14.5px;margin-top:4px;line-height:1.7}