:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --panel: #13171c;
  --line: #252b33;
  --text: #f4f7fb;
  --muted: #9aa3ae;
  --accent: #8fb7ff;
  --max: 880px;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 82% 4%, rgba(71,117,255,.12), transparent 25rem), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
}
a { color: inherit; }
.site-header,
.site-footer,
.policy-shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 28px 0;
}
.brand {
  color: var(--text);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-decoration: none;
  text-transform: uppercase;
}
.language-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 11px;
}
.language-switch button {
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.language-switch button[aria-pressed="true"] { color: var(--text); }
.language-switch button:focus-visible,
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.policy-intro { padding: 72px 0 48px; border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0 0 18px; color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
h1 { margin: 0; font-size: clamp(46px, 9vw, 86px); line-height: .96; letter-spacing: -.055em; }
.policy-intro > p:not(.eyebrow) { max-width: 650px; margin: 26px 0 0; color: var(--muted); font-size: 17px; line-height: 1.8; }
.policy { padding: 26px 0 72px; }
.policy section { padding: 34px 0; border-bottom: 1px solid var(--line); }
.policy h2 { margin: 0 0 15px; font-size: 17px; letter-spacing: -.01em; }
.policy p,
.policy li { color: var(--muted); font-size: 14px; line-height: 1.95; }
.policy p { margin: 0; }
.policy p + p { margin-top: 14px; }
.policy ul { margin: 16px 0 0; padding-left: 1.2rem; }
.policy a { color: #c7d8f6; text-underline-offset: 3px; }
.dates { border-bottom: 0 !important; }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 28px 0 44px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.site-footer a { text-decoration: none; }
[hidden] { display: none !important; }
@media (max-width: 640px) {
  .site-header,.site-footer,.policy-shell { width: min(100% - 28px, var(--max)); }
  .policy-intro { padding: 48px 0 34px; }
  .policy-intro > p:not(.eyebrow) { font-size: 15px; }
  .policy section { padding: 28px 0; }
  .site-footer { flex-direction: column; }
}