:root {
  --paper: #f6f1e7;
  --paper-deep: #efe7d7;
  --ink: #1c1914;
  --ink-soft: #4a443a;
  --vermilion: #b43a2b;
  --gold: #8a6d2f;
  --rule: #d8cdb8;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  line-height: 1.8;
  font-size: 17px;
  overflow-x: hidden;
}
body.zh { font-family: 'Songti SC', 'Noto Serif SC', 'Noto Serif CJK SC', Georgia, 'Times New Roman', serif; line-height: 1.85; }
body.en { font-family: Georgia, 'Iowan Old Style', 'Times New Roman', 'Noto Serif SC', serif; line-height: 1.7; }
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: var(--wall);
  background-size: 300px;
  opacity: 0.055;
  filter: saturate(1.3);
  pointer-events: none;
  z-index: 0;
}
.topbar, article, footer { position: relative; z-index: 1; }
.wrap { max-width: 700px; margin: 0 auto; padding: 0 22px; }

.topbar {
  border-bottom: 1px solid var(--rule);
  background: var(--paper-deep);
  padding: 12px 0;
  font-size: 13px;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar a { color: var(--ink-soft); text-decoration: none; }
.topbar a:hover { color: var(--vermilion); }
.topbar .home { font-weight: 600; }
.topbar nav { display: flex; gap: 12px; }

article { padding: 40px 0 20px; }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--vermilion);
  border: 1px solid var(--vermilion);
  padding: 3px 12px;
  margin-bottom: 20px;
}
h1 { font-size: clamp(27px, 5.4vw, 38px); line-height: 1.25; font-weight: 600; margin-bottom: 16px; }
body.zh h1 { line-height: 1.35; }
.standfirst { font-size: 18px; color: var(--ink-soft); margin-bottom: 20px; }
.updated {
  font-size: 13px;
  color: var(--ink-soft);
  background: var(--paper-deep);
  border-left: 3px solid var(--gold);
  padding: 7px 12px;
  margin-bottom: 30px;
}
.answer {
  border: 1px solid var(--ink);
  outline: 1px solid var(--ink);
  outline-offset: 3px;
  padding: 22px 22px 8px;
  margin: 30px 0 38px;
  background: var(--paper);
}
.answer .lbl {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.answer p { font-size: 17.5px; }
h2 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.3;
  margin: 44px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
h3 { font-size: 19px; font-weight: 600; margin: 30px 0 10px; }
p { margin-bottom: 16px; }
ul, ol { margin: 0 0 18px 22px; }
li { margin-bottom: 8px; }
table { width: 100%; border-collapse: collapse; margin: 22px 0; font-size: 15.5px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); }
td:first-child { white-space: nowrap; }
.badge {
  display: inline-block; font-size: 11px; letter-spacing: 0.08em;
  padding: 1px 8px; border: 1px solid currentColor; white-space: nowrap;
}
.badge.on { color: var(--vermilion); }
.badge.off { color: var(--ink-soft); }
blockquote {
  border-left: 3px solid var(--rule);
  padding: 4px 0 4px 18px;
  margin: 22px 0;
  color: var(--ink-soft);
}
figure { margin: 30px 0; }
figure img { width: 100%; height: auto; display: block; border: 1px solid var(--rule); }
figcaption { font-size: 13px; color: var(--ink-soft); padding-top: 9px; text-align: center; line-height: 1.55; }
.note { font-size: 14.5px; color: var(--ink-soft); background: var(--paper-deep); padding: 14px 16px; margin: 24px 0; }
details { border-bottom: 1px solid var(--rule); padding: 14px 4px; }
details:first-of-type { border-top: 1px solid var(--rule); }
summary { cursor: pointer; font-weight: 600; font-size: 16.5px; }
details p { margin: 12px 0 4px; color: var(--ink-soft); font-size: 16px; }
a { color: var(--vermilion); }

.cta {
  background: var(--ink);
  color: var(--paper);
  padding: 32px 28px;
  margin: 44px 0;
  text-align: center;
}
.cta h3 { font-size: 21px; font-weight: 600; margin: 0 0 10px; }
.cta p { color: #cfc7b6; font-size: 15.5px; max-width: 460px; margin: 0 auto 20px; }
.cta a {
  display: inline-block; background: var(--vermilion); color: #fff;
  text-decoration: none; padding: 12px 28px; font-size: 15.5px; letter-spacing: 0.06em;
}
.cta a:hover { background: #9c2f22; }
.cta small { display: block; margin-top: 13px; color: #948b78; font-size: 12.5px; }

.adslot {
  border: 1px solid var(--rule);
  padding: 20px;
  margin: 40px 0;
  text-align: center;
  font-size: 14.5px;
  color: var(--ink-soft);
}
.adslot .tag {
  display: block; font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 8px;
}
.related { border-top: 3px double var(--rule); margin-top: 46px; padding-top: 26px; }
.related h2 { border: none; margin-top: 0; font-size: 20px; }
.related ul { list-style: none; margin-left: 0; }
.related li { margin-bottom: 12px; }
.related a { font-weight: 600; text-decoration: none; }
.related a:hover { text-decoration: underline; }
.related span { display: block; font-size: 14px; color: var(--ink-soft); }

footer {
  border-top: 3px double var(--rule);
  margin-top: 46px;
  padding: 30px 0 48px;
  font-size: 13px;
  color: var(--ink-soft);
  background: var(--paper);
}
footer p { margin-bottom: 9px; }