:root {
  color-scheme: dark;
  --paper: #111310;
  --paper-soft: #191c18;
  --ink: #f3f0e8;
  --muted: #aaa99f;
  --line: rgba(235, 231, 217, 0.16);
  --sand: #d7bd91;
  --serif: "Noto Serif TC", "Source Han Serif TC", Georgia, serif;
  --sans: Inter, "Noto Sans TC", "PingFang HK", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); font-family: var(--sans); }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 77% -10%, rgba(153, 126, 86, 0.14), transparent 31rem),
    linear-gradient(155deg, #171915 0%, var(--paper) 48%, #0c0d0b 100%);
}
a { color: inherit; }
.skip {
  position: fixed; left: 1rem; top: -5rem; z-index: 5;
  padding: .7rem 1rem; background: var(--ink); color: var(--paper);
}
.skip:focus { top: 1rem; }
.site-head {
  width: min(72rem, calc(100% - 2rem));
  margin: 0 auto;
  min-height: 4rem;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1.25rem;
  border-bottom: 1px solid var(--line);
}
.brand { font: 600 .92rem/1 var(--serif); letter-spacing: .14em; text-decoration: none; }
.site-head nav a, .app-link {
  color: var(--muted); font-size: .78rem; letter-spacing: .04em; text-underline-offset: .25em;
}
.app-link {
  border: 1px solid var(--line); border-radius: 99px; padding: .52rem .86rem; text-decoration: none;
}
main { width: min(72rem, calc(100% - 2rem)); margin: 0 auto; }
article { width: min(50rem, 100%); margin: 0 auto; padding: clamp(3.5rem, 7vw, 5.8rem) 0 4.5rem; }
.breadcrumbs { margin: 0 0 1.35rem; color: var(--muted); font-size: .74rem; }
.breadcrumbs ol {
  display: flex; flex-wrap: wrap; align-items: center; gap: .45rem;
  margin: 0; padding: 0; list-style: none;
}
.breadcrumbs li + li::before { content: "／"; margin-right: .45rem; color: #85897f; }
.breadcrumbs a { color: var(--sand); text-underline-offset: .25em; }
.eyebrow {
  margin: 0 0 .85rem; color: var(--sand); font-size: .7rem; font-weight: 650;
  letter-spacing: .17em; text-transform: uppercase;
}
h1, h2 { font-family: var(--sans); font-weight: 520; }
h1 {
  margin: 0; max-width: 15em; font-size: clamp(2.35rem, 5vw, 3.9rem);
  line-height: 1.08; letter-spacing: -.04em;
}
.dek {
  max-width: 40rem; margin: 1.25rem 0 0; color: var(--muted);
  font: 1rem/1.75 var(--sans);
}
.rule {
  display: flex; align-items: center; gap: .8rem; margin: 2.8rem 0 3.2rem;
  color: var(--sand); font: 1.15rem/1 var(--serif);
}
.rule::before, .rule::after { content: ""; height: 1px; flex: 1; background: var(--line); }
.article-body { display: grid; gap: 2.15rem; }
.article-body > section {
  display: grid;
  grid-template-columns: minmax(10rem, .42fr) minmax(0, 1fr);
  gap: 1rem 2.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}
section h2, .related h2 {
  margin: 0; font-size: clamp(1.08rem, 2vw, 1.28rem); line-height: 1.45;
  letter-spacing: -.015em;
}
section p {
  grid-column: 2; margin: 0; color: #d5d2c9; font: .96rem/1.85 var(--sans);
  hanging-punctuation: first last;
}
section p + p { margin-top: .8rem; }
.related {
  margin-top: 3.2rem; padding-top: 1.4rem; border-top: 1px solid var(--line);
}
.related h2 { margin-bottom: 1rem; }
.related ul {
  list-style: none; margin: 0; padding: 0; display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem 1.5rem;
}
.related a { color: var(--sand); font-size: .9rem; line-height: 1.5; text-underline-offset: .25em; }
.updated { margin: 2rem 0 0; color: #85897f; font-size: .75rem; }
.not-found { min-height: calc(100vh - 11rem); }
.not-found-copy {
  max-width: 40rem; margin: 0; color: #d3d2c9; font: 1rem/1.85 var(--sans);
}
.not-found-actions {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.25rem; margin-top: 2rem;
}
.not-found-actions a {
  min-height: 2.75rem; display: inline-flex; align-items: center;
  color: var(--sand); text-underline-offset: .25em;
}
.not-found-actions .primary-action {
  border: 1px solid var(--line); border-radius: 99px; padding: .65rem 1rem;
  text-decoration: none;
}
footer {
  width: min(72rem, calc(100% - 2rem)); margin: 0 auto;
  border-top: 1px solid var(--line); padding: 1.5rem 0 2.5rem;
}
footer p { margin: 0; color: #85897f; font-size: .75rem; line-height: 1.6; }
@media (max-width: 34rem) {
  .site-head { grid-template-columns: 1fr auto; }
  .site-head nav { order: 3; grid-column: 1 / -1; padding-bottom: 1rem; }
  article { padding-top: 3rem; }
  h1 { font-size: clamp(2.2rem, 11vw, 3rem); }
  .article-body > section { display: block; }
  section h2 { margin-bottom: .75rem; }
  section p + p { margin-top: .8rem; }
  .related ul { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: no-preference) {
  .app-link, .breadcrumbs a, .related a, .not-found-actions a {
    transition: color .18s ease, border-color .18s ease;
  }
  .app-link:hover, .not-found-actions .primary-action:hover {
    border-color: var(--sand); color: var(--ink);
  }
  .breadcrumbs a:hover, .related a:hover, .not-found-actions a:hover { color: var(--ink); }
}