:root {
  --bg: #e3e4e6;
  --surface: #f5f5f6;
  --border: #c5c7c9;
  --accent: #a84a00;
  --text: #26272a;
  --text-dim: #5f6266;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--surface); color: var(--text); font: 15px/1.85 system-ui, -apple-system, 'Segoe UI', 'Hiragino Sans', 'Yu Gothic UI', 'Meiryo', sans-serif; }
a { color: inherit; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:hover { color: var(--accent); }
a:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
header { border-bottom: 1px solid var(--border); background: var(--bg); }
.bar { max-width: 760px; margin: auto; padding: 12px 16px; display: flex; align-items: center; gap: 12px; }
.brand { font: 12px/1.5 ui-monospace, monospace; letter-spacing: 1px; text-decoration: none; }
select { margin-left: auto; min-width: 0; max-width: 40%; padding: 6px; color: var(--text); background: var(--surface); border: 1px solid var(--border); }
.wrap { max-width: 760px; margin: auto; padding: 24px 20px 56px; overflow-wrap: break-word; }
.legal-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13px; line-height: 1.7; }
.legal-nav [aria-current] { font-weight: 700; color: var(--accent); }
h1 { font-size: 28px; line-height: 1.4; margin: 28px 0 8px; }
.updated { font-size: 13px; color: var(--text-dim); }
.intro { margin-top: 20px; padding: 16px; background: var(--bg); border-left: 3px solid var(--border); }
.section-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 16px; margin: 20px 0 8px; font-size: 14px; line-height: 1.65; }
.section-nav a { display: block; padding: 8px 12px; border: 1px solid var(--border); }
p { margin: 0 0 14px; }
section { padding-top: 24px; scroll-margin-top: 16px; }
h2 { font-size: 18px; line-height: 1.6; margin: 0 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
footer { margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 12px; }
footer .legal-nav { margin-bottom: 16px; }
@media (max-width: 560px) { h1 { font-size: 23px; } .wrap { padding: 20px 16px 40px; } }
@media (max-width: 400px) { .section-nav { grid-template-columns: 1fr; } }