:root {
  --bg: #FBFDFA;
  --surface: #FFFFFF;
  --text: #122B23;
  --muted: #4E6159;
  --brand: #17604C;
  --brand-soft: #E5F4E3;
  --line: #D9E6DD;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F1A16;
    --surface: #16241F;
    --text: #E6F0EA;
    --muted: #A9BDB3;
    --brand: #88BB8F;
    --brand-soft: #1E3029;
    --line: #2A3D35;
  }
  .logo { filter: brightness(1.6) saturate(0.8); }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", sans-serif;
  line-height: 1.8;
  font-size: 16px;
}
a { color: var(--brand); }
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
header.site .inner, main, footer.site .inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}
header.site .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 60px;
  flex-wrap: wrap;
}
header.site .logo { height: 32px; width: auto; display: block; }
header.site nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; }
header.site nav a { text-decoration: none; color: var(--muted); }
header.site nav a:hover { color: var(--brand); }
main { padding-top: 28px; padding-bottom: 48px; }
h1 { font-size: 26px; line-height: 1.4; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 36px 0 8px; padding-top: 12px; border-top: 1px solid var(--line); }
h3 { font-size: 16px; margin: 20px 0 4px; }
p, li { overflow-wrap: anywhere; }
.lead { color: var(--muted); margin-top: 0; }
.meta { color: var(--muted); font-size: 14px; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 16px 0;
}
.hero { text-align: center; padding: 24px 0 8px; }
.hero img { width: 96px; height: 96px; border-radius: 22px; }
.hero h1 { font-size: 28px; margin-top: 12px; }
.badge {
  display: inline-block;
  background: var(--brand-soft);
  color: var(--brand);
  border-radius: 999px;
  padding: 2px 12px;
  font-size: 14px;
  font-weight: 600;
}
.links { list-style: none; padding: 0; display: grid; gap: 10px; }
.links a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--text);
}
.links a span { display: block; color: var(--muted); font-size: 14px; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--brand-soft); white-space: nowrap; }
dl.kv { display: grid; grid-template-columns: minmax(7em, 30%) 1fr; border-top: 1px solid var(--line); margin: 16px 0; }
dl.kv dt, dl.kv dd { margin: 0; padding: 10px 8px; border-bottom: 1px solid var(--line); }
dl.kv dt { font-weight: 600; background: var(--brand-soft); }
@media (max-width: 520px) {
  dl.kv { grid-template-columns: 1fr; }
  dl.kv dt { border-bottom: none; padding-bottom: 2px; }
}
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; padding: 20px 0 32px; }
footer.site nav { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 8px; }
footer.site a { color: var(--muted); }