:root {
  --bg: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 32px 20px 80px; }
header.site { border-bottom: 1px solid var(--border); margin-bottom: 28px; padding-bottom: 16px; }
header.site a.brand { font-weight: 700; color: var(--text); text-decoration: none; font-size: 18px; }
nav.docnav { margin-top: 12px; display: flex; gap: 16px; flex-wrap: wrap; }
nav.docnav a { color: var(--accent); text-decoration: none; font-size: 14px; }
nav.docnav a:hover { text-decoration: underline; }
h1 { font-size: 24px; margin: 8px 0 4px; }
h2 { font-size: 18px; margin: 32px 0 8px; }
p, li { font-size: 15px; }
.updated { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
table { border-collapse: collapse; width: 100%; margin: 8px 0; }
th, td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; font-size: 14px; vertical-align: top; }
th { background: #f9fafb; white-space: nowrap; }
footer.site { border-top: 1px solid var(--border); margin-top: 48px; padding-top: 16px; color: var(--muted); font-size: 13px; }
.contact { margin-top: 32px; padding: 16px; background: #f9fafb; border-radius: 8px; font-size: 14px; }