:root {
  --ink: #1c1917;
  --muted: #6f675d;
  --line: #e0d6c6;
  --paper: #f4efe6;
  --card: #fffcf7;
  --accent: #8f3d2b;
  --good: #166534;
  --bad: #9f1239;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Source Sans 3", "PingFang SC", "Hiragino Sans GB", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 40px 28px 72px; }
nav {
  display: flex; gap: 18px; margin-bottom: 28px;
  font-size: 14px;
}
nav a { color: var(--accent); text-decoration: none; }
nav a[aria-current="page"] { font-weight: 650; }
.kicker {
  letter-spacing: 0.18em; text-transform: uppercase;
  font-size: 11px; color: var(--accent);
}
h1 {
  font-family: "Source Serif 4", "Songti SC", serif;
  font-size: 36px; font-weight: 650; letter-spacing: 0.02em;
  margin: 8px 0 10px;
}
h2 {
  font-family: "Source Serif 4", "Songti SC", serif;
  font-size: 22px; margin: 40px 0 14px;
}
h3 {
  font-size: 16px;
  margin: 22px 0 8px;
  font-weight: 650;
}
.docs-nav {
  font-size: 13px;
  margin: -6px 0 28px;
  line-height: 1.8;
}
.docs-nav a { color: var(--muted); text-decoration: none; margin-right: 14px; }
.docs-nav a:hover { color: var(--accent); }
.docs-nav a[aria-current="page"] { color: var(--accent); font-weight: 650; }
.sub { color: var(--muted); font-size: 17px; max-width: 40em; }
.meta {
  display: flex; flex-wrap: wrap; gap: 8px 16px;
  margin: 16px 0 28px; font-size: 13px; color: var(--muted);
}
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.kpi {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 16px;
}
.kpi .lab { font-size: 12px; color: var(--muted); }
.kpi .num {
  font-size: 34px; font-weight: 650; color: var(--accent);
  letter-spacing: -0.03em; margin-top: 4px;
}
.kpi .hint { font-size: 12px; color: var(--muted); }
.shot {
  background: #efe7d8; border: 1px solid var(--line);
  border-radius: 16px; padding: 10px; margin: 14px 0 8px;
}
.shot img {
  width: 100%; height: auto; display: block;
  border-radius: 10px; border: 1px solid #ddd2c0;
}
.caption { font-size: 13px; color: var(--muted); margin: 0 0 22px; }
.qa {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 18px 20px 16px; margin: 16px 0;
}
.qa .q { font-weight: 650; font-size: 18px; margin: 10px 0 12px; }
.qa h3 {
  font-size: 14px; color: var(--accent); margin: 14px 0 6px;
  font-family: inherit; letter-spacing: 0.04em;
}
.qa p, .qa li { margin: 0 0 8px; }
.qa ul { padding-left: 1.2em; margin: 0 0 8px; }
.cites { font-size: 13px; color: #44403c; padding-left: 1.2em; }
.tag {
  display: inline-block; font-size: 11px; padding: 2px 8px;
  border-radius: 99px; background: #f3e4d6; color: var(--accent); margin-right: 6px;
}
.tag.ok { background: #dcfce7; color: var(--good); }
.tag.no { background: #ffe4e6; color: var(--bad); }
table {
  width: 100%; border-collapse: collapse; background: var(--card);
  border: 1px solid var(--line); font-size: 14px;
}
th, td { padding: 10px 12px; text-align: left; border-top: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; color: var(--muted); border-top: 0; background: #f5f1ea; }
.note { font-size: 13px; color: var(--muted); }
@media (max-width: 720px) {
  .kpis { grid-template-columns: 1fr 1fr; }
  h1 { font-size: 28px; }
}