:root {
  --fg: #212121;
  --muted: #5f6368;
  --accent: #1a73e8;
  --bg: #ffffff;
  --header-bg: #3c4043;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.7;
}

.site-header {
  background: var(--header-bg);
  color: #fff;
  padding: 72px 24px;
  text-align: center;
}

.site-header h1 {
  margin: 0;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  font-weight: 500;
  letter-spacing: 0.02em;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

section + section { margin-top: 40px; }

h2 {
  font-size: 1.5rem;
  font-weight: 500;
  margin: 0 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid #e0e0e0;
}

.links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.links li {
  display: flex;
  gap: 4px;
  padding: 6px 0;
}

.links .label::after { content: "："; }

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }

.site-footer {
  text-align: center;
  color: var(--muted);
  padding: 24px;
  border-top: 1px solid #e0e0e0;
}

.footer-links { margin: 0 0 8px; }

.site-header--small { padding: 20px 24px; }
.site-title { margin: 0; font-size: 1.4rem; font-weight: 500; }
.site-title a { color: #fff; }

.policy h1 {
  font-size: 1.8rem;
  font-weight: 500;
  margin: 0 0 24px;
}
.policy h2 { font-size: 1.2rem; }
.policy section + section { margin-top: 28px; }
.policy ul { padding-left: 1.4em; }
.policy-date { color: var(--muted); }