:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #252b29;
  background: #f6f7f6;
  font-synthesis: none;
  -webkit-text-size-adjust: 100%;
  --accent: #874528;
}
* { box-sizing: border-box; }
body { margin: 0; font-size: 1rem; line-height: 1.85; overflow-wrap: anywhere; }
a { color: var(--accent); text-underline-offset: .22em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
.skip { position: absolute; top: -6rem; left: 1rem; background: white; padding: .5rem; }
.skip:focus { top: 1rem; }
.site-header, main, .site-footer { width: min(100% - 3rem, 48rem); margin-inline: auto; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding-block: 1.5rem; border-bottom: 1px solid #d8ddda; }
.brand { font-size: 1.5rem; font-weight: 800; letter-spacing: -.04em; color: #252b29; text-decoration: none; }
.site-header nav { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; font-size: .9375rem; }
[aria-current="page"] { color: #252b29; font-weight: 650; text-decoration: none; }
main { padding-block: 2.5rem; }
h1 { font-size: clamp(1.875rem, 5vw, 2.5rem); line-height: 1.3; letter-spacing: -.035em; margin: 0 0 .75rem; }
h2 { font-size: 1.25rem; line-height: 1.5; margin: 2.5rem 0 .8rem; scroll-margin-top: 1rem; }
h3 { font-size: 1.0625rem; margin: 1.5rem 0 .4rem; }
p { margin: .75rem 0; }
.meta { color: #59655e; font-size: .875rem; margin-bottom: 1.75rem; }
.meta span { display: inline-block; }
.summary { background: white; border-left: 3px solid var(--accent); padding: 1rem 1.25rem; margin-block: 1.75rem; }
.summary p:first-child { margin-top: 0; }
.summary p:last-child { margin-bottom: 0; }
ul, ol { padding-left: 1.4rem; }
li { padding-left: .15rem; margin-block: .45rem; }
.contents { padding-block: .5rem 1rem; border-bottom: 1px solid #d8ddda; }
.contents ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1.5rem; }
.data-list { margin: 1rem 0; }
.data-list > div { padding: 1rem 0; border-bottom: 1px solid #d8ddda; }
dt { font-weight: 650; }
dd { margin: .4rem 0 0; }
.site-footer { padding-block: 1.5rem 2.5rem; border-top: 1px solid #d8ddda; color: #59655e; font-size: .875rem; }
.site-footer p { margin: .3rem 0; }
@media (max-width: 36rem) {
  .site-header, main, .site-footer { width: calc(100% - 2rem); }
  .site-header { align-items: flex-start; flex-direction: column; gap: .75rem; }
  main { padding-block: 1.75rem; }
  .contents ol { grid-template-columns: 1fr; }
}
@media print {
  :root { background: white; color: black; }
  .site-header, main, .site-footer { width: 100%; }
  .skip, .site-header nav, .contents, .back-top { display: none; }
  main { padding-block: 1rem; }
  h2, h3, dt { break-after: avoid; }
  a { color: black; }
}