:root {
  color-scheme: light dark;
  --accent: #5856d6;
  --text: #1d1d1f;
  --secondary: #6e6e73;
  --bg: #ffffff;
  --card: #f5f5f7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --text: #f5f5f7;
    --secondary: #a1a1a6;
    --bg: #1d1d1f;
    --card: #2c2c2e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
}
main { max-width: 760px; margin: 0 auto; padding: 24px 20px 80px; }
header.site {
  border-bottom: 1px solid rgba(128,128,128,.25);
  padding: 14px 20px;
}
header.site .inner {
  max-width: 760px; margin: 0 auto;
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
}
header.site a { color: var(--text); text-decoration: none; font-weight: 700; }
header.site nav a { color: var(--secondary); font-weight: 400; font-size: .9rem; margin-right: 14px; }
header.site nav a:hover { color: var(--accent); }
h1 { font-size: 1.7rem; margin: 28px 0 4px; }
h2 { font-size: 1.15rem; margin-top: 36px; border-left: 4px solid var(--accent); padding-left: 10px; }
p.updated { color: var(--secondary); font-size: .85rem; margin-top: 0; }
section.lang { margin-top: 8px; }
hr.langsep { margin: 56px 0 8px; border: none; border-top: 2px dashed rgba(128,128,128,.35); }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { border: 1px solid rgba(128,128,128,.35); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--card); }
ul { padding-left: 22px; }
.card { background: var(--card); border-radius: 12px; padding: 16px 20px; margin: 16px 0; }
footer { color: var(--secondary); font-size: .8rem; margin-top: 64px; border-top: 1px solid rgba(128,128,128,.25); padding-top: 16px; }
a { color: var(--accent); }