:root {
  --bg: #fafaf8;
  --surface: #f4f3ef;
  --text-main: #1a1a18;
  --text-strong: #0a0a09;
  --text-muted: #5c5c56;
  --text-light: #8c8c84;
  --border: #e0ddd4;
  --border-dark: #c8c5ba;
  --max-width: 720px;
  --font-sans: 'BIZ UDPGothic', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: all 0.2s ease; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 248, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), 1160px);
  margin: 0 auto;
}

.brand-name {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-strong);
}

.back-link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.back-link:hover { color: var(--text-strong); }

.page-wrap {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
  padding: 80px 0 120px;
}

.page-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-light);
  letter-spacing: 0.14em;
  margin-bottom: 20px;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 12px;
  line-height: 1.4;
}

.page-date {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 64px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.policy-section {
  margin-bottom: 52px;
}

.policy-section h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.policy-section p {
  font-size: 0.97rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 1em;
}

.policy-section p:last-child { margin-bottom: 0; }

.policy-section ul {
  padding-left: 1.4em;
  margin-bottom: 1em;
}

.policy-section ul li {
  font-size: 0.97rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 0.4em;
}

.contact-box {
  margin-top: 64px;
  padding: 32px 36px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.contact-box p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin: 0;
}

.site-footer {
  background: var(--text-strong);
  color: #fff;
  padding: 48px 0;
}

.footer-inner {
  width: min(calc(100% - 48px), 1160px);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: #4c4c44;
  font-family: var(--font-sans);
}

.footer-legal a {
  color: #4c4c44;
  margin-right: 24px;
}

.footer-legal a:hover { color: #7c7c70; }

@media (max-width: 768px) {
  .page-wrap { padding: 56px 0 80px; }
  .page-title { font-size: 1.6rem; }
  .contact-box { padding: 24px; }
  .footer-inner { flex-direction: column; gap: 16px; align-items: flex-start; }
}

.brand-logo {
  display: block;
  width: 80px;
  height: auto;
}