:root {
  color-scheme: light dark;
  --page: #fff9f5;
  --surface: #ffffff;
  --surface-soft: #f8eee8;
  --text: #3c3330;
  --text-soft: #6c5e59;
  --text-faint: #897a74;
  --accent: #b9675f;
  --accent-dark: #914d48;
  --accent-soft: #f4dfd8;
  --line: #eadbd4;
  --shadow: 0 18px 45px rgba(105, 65, 54, 0.08);
  --focus: #668f86;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.9;
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent);
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header {
  background:
    radial-gradient(circle at 88% 20%, rgba(255, 255, 255, 0.52), transparent 27%),
    linear-gradient(135deg, #f2d8cd 0%, #f6e8dd 47%, #dfe9df 100%);
  border-bottom: 1px solid rgba(145, 77, 72, 0.12);
}

.header-inner,
.page-shell,
.footer-inner {
  width: min(100% - 40px, 800px);
  margin: 0 auto;
}

.header-inner {
  padding: 68px 0 58px;
}

.eyebrow,
.card-label,
.section-number {
  margin: 0;
  color: var(--accent-dark);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 700px;
  margin: 13px 0 3px;
  font-size: clamp(2rem, 7vw, 3.5rem);
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.header-title {
  margin: 0;
  color: var(--text-soft);
  font-size: clamp(1.1rem, 3vw, 1.45rem);
  font-weight: 700;
}

.updated {
  margin: 22px 0 0;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.page-shell {
  padding: 44px 0 80px;
}

.contents-card,
.service-card,
.contact-card,
.notice {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.contents-card {
  margin-bottom: 68px;
  padding: 25px 28px 23px;
}

.contents-card ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px 28px;
  margin: 12px 0 0;
  padding-left: 1.4rem;
}

.contents-card li {
  padding-left: 4px;
  color: var(--text-soft);
}

.contents-card a {
  color: inherit;
  text-decoration: none;
}

.contents-card a:hover {
  color: var(--accent-dark);
  text-decoration: underline;
}

.policy section {
  scroll-margin-top: 22px;
  margin-top: 66px;
}

.policy section:first-child {
  margin-top: 0;
}

.section-number {
  margin-bottom: 5px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

h2 {
  margin: 0 0 19px;
  font-size: clamp(1.45rem, 4vw, 2rem);
  letter-spacing: -0.02em;
  line-height: 1.35;
}

h3 {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 1.14rem;
  line-height: 1.45;
}

.policy p {
  margin: 0 0 17px;
}

.policy ul {
  margin: 18px 0 22px;
  padding-left: 1.45rem;
}

.policy li {
  margin: 8px 0;
  padding-left: 4px;
}

.notice {
  margin: 24px 0 0;
  padding: 17px 19px;
  color: var(--text-soft);
  background: var(--surface-soft);
  box-shadow: none;
}

.service-card {
  margin: 23px 0;
  padding: 23px 24px 5px;
  box-shadow: none;
}

.service-card p:last-child,
.contact-card + p:last-child {
  margin-bottom: 0;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 22px 0 19px;
  padding: 19px 21px;
  font-style: normal;
  box-shadow: none;
}

.contact-card strong {
  color: var(--accent-dark);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 0 32px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.footer-inner p {
  margin: 0;
}

.footer-note {
  color: var(--text-faint);
  font-size: 0.8rem;
}

@media (max-width: 620px) {
  .header-inner,
  .page-shell,
  .footer-inner {
    width: min(100% - 28px, 800px);
  }

  .header-inner {
    padding: 48px 0 42px;
  }

  .page-shell {
    padding-top: 28px;
    padding-bottom: 58px;
  }

  .contents-card {
    margin-bottom: 52px;
    padding: 21px 20px 19px;
  }

  .contents-card ol {
    display: block;
    margin-top: 9px;
  }

  .contents-card li {
    margin: 5px 0;
  }

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

  .service-card {
    padding: 20px 18px 3px;
  }

  .footer-inner {
    display: block;
    padding: 22px 0 28px;
  }

  .footer-inner p + p {
    margin-top: 5px;
  }

  .footer-note {
    margin-top: 10px !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #211d1b;
    --surface: #2b2522;
    --surface-soft: #342b27;
    --text: #f4ebe5;
    --text-soft: #d2c2ba;
    --text-faint: #ae9b92;
    --accent: #e59a8b;
    --accent-dark: #f0b1a3;
    --accent-soft: #4c302c;
    --line: #4a3b35;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.2);
    --focus: #a8d2c5;
  }

  .site-header {
    background:
      radial-gradient(circle at 88% 20%, rgba(255, 255, 255, 0.1), transparent 27%),
      linear-gradient(135deg, #4c302c 0%, #3d302b 47%, #2f423d 100%);
    border-bottom-color: rgba(229, 154, 139, 0.18);
  }

  .contents-card,
  .service-card,
  .contact-card,
  .notice {
    border-color: var(--line);
  }

  .notice {
    background: var(--surface-soft);
  }
}