:root {
  --navy: #0E3976;
  --orange: #F59E0B;
  --bg: #F8FAFC;
  --sub: #D9E4F2;
  --text: #1F2937;
  --white: #FFFFFF;
  --surface: #FEFDF9;
  --border: #CBD7E6;
  --muted: #5B6677;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 14px clamp(16px, 4vw, 48px);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(14, 57, 118, 0.08);
}

.brand {
  color: var(--navy);
  font-family: "Noto Sans JP", "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  letter-spacing: 0;
  font-feature-settings: "palt";
}


.image-section {
  position: relative;
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  line-height: 0;
  background: var(--white);
}

.image-section img {
  display: block;
  width: 100%;
  height: auto;
}

.image-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.image-link:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: -3px;
}


.site-footer {
  padding: 32px 20px;
  text-align: center;
  background: var(--navy);
  color: var(--white);
}

.site-footer a {
  color: var(--white);
  opacity: 0.9;
  margin: 0 8px;
  font-size: 14px;
}

.back-to-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 25;
  display: inline-flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(14, 57, 118, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 34px rgba(14, 57, 118, 0.18);
  color: var(--navy);
  text-decoration: none;
  backdrop-filter: blur(12px);
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.back-to-top span {
  width: 13px;
  height: 13px;
  border-top: 3px solid currentColor;
  border-left: 3px solid currentColor;
  transform: translateY(4px) rotate(45deg);
}

.back-to-top:hover {
  transform: translateY(-2px);
  background: var(--white);
  box-shadow: 0 18px 42px rgba(14, 57, 118, 0.24);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0, 0, 0, 0);
  overflow: hidden;
  white-space: nowrap;
}

@media (min-width: 768px) {
  body {
    background:
      linear-gradient(180deg, rgba(217, 228, 242, 0.44) 0, rgba(248, 250, 252, 0) 520px),
      #EEF4FA;
  }

  main {
    display: grid;
    gap: clamp(28px, 3vw, 52px);
    padding: clamp(28px, 3vw, 56px) clamp(24px, 4vw, 72px) clamp(56px, 6vw, 96px);
  }

  .image-section {
    max-width: 1500px;
    background: transparent;
  }

  .image-section img {
    border: 1px solid rgba(14, 57, 118, 0.08);
    border-radius: 18px;
    box-shadow:
      0 28px 72px rgba(14, 57, 118, 0.12),
      0 4px 16px rgba(14, 57, 118, 0.08);
  }

  .image-link,
  .image-link picture {
    border-radius: 18px;
  }

  .image-link:focus-visible {
    border-radius: 20px;
    outline-offset: 4px;
  }
}

.legal-page {
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(217, 228, 242, 0.48) 0, rgba(248, 250, 252, 0) 320px),
    var(--bg);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  line-height: 1.8;
}

.legal-page a {
  color: var(--navy);
  text-underline-offset: 0.18em;
}

.legal-page a:hover {
  color: #092A58;
}

.legal-page .page {
  width: min(100%, 1040px);
  margin: 0 auto;
  padding: clamp(32px, 7vw, 80px) clamp(16px, 4vw, 40px);
}

.legal-page .header {
  display: grid;
  gap: var(--space-lg);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border);
}

.legal-page .service-name {
  margin: 0;
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.legal-page h1 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.32;
  letter-spacing: 0;
}

.legal-page .lead {
  max-width: 74ch;
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 2vw, 1.08rem);
}

.legal-page .meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  align-items: center;
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.legal-page .meta strong {
  color: var(--text);
  font-weight: 700;
}

.legal-page .content {
  display: grid;
  gap: var(--space-xl);
  padding-top: var(--space-xl);
}

.legal-page .toc,
.legal-page .policy-section,
.legal-page .contact,
.legal-page .note,
.legal-page .table-wrap {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.legal-page .toc,
.legal-page .policy-section,
.legal-page .contact,
.legal-page .note {
  padding: var(--space-lg);
}

.legal-page .toc h2,
.legal-page .contact h2,
.legal-page .note h2 {
  margin: 0;
  color: var(--navy);
  font-size: 1.08rem;
  line-height: 1.5;
}

.legal-page .toc ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm) var(--space-xl);
  margin: var(--space-md) 0 0;
  padding-left: 1.3em;
}

.legal-page .toc li {
  padding-left: var(--space-xs);
  color: var(--muted);
  font-size: 0.95rem;
}

.legal-page .toc a {
  font-weight: 700;
  text-decoration-thickness: 1px;
}

.legal-page .policy-section {
  display: grid;
  gap: var(--space-md);
}

.legal-page .policy-section h2 {
  display: flex;
  gap: var(--space-sm);
  align-items: baseline;
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.12rem, 2vw, 1.34rem);
  line-height: 1.5;
}

.legal-page .section-number {
  color: var(--orange);
  font-size: 0.9em;
  font-weight: 800;
}

.legal-page .policy-section p {
  margin: 0;
  max-width: 78ch;
}

.legal-page .policy-section ul {
  display: grid;
  gap: var(--space-sm);
  margin: 0;
  padding-left: 1.25em;
}

.legal-page .policy-section li {
  padding-left: var(--space-xs);
}

.legal-page .table-wrap {
  overflow-x: auto;
}

.legal-page table {
  width: 100%;
  border-collapse: collapse;
}

.legal-page .table-wrap table {
  min-width: 720px;
}

.legal-page th,
.legal-page td {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
  font-size: 0.98rem;
}

.legal-page tr:last-child th,
.legal-page tr:last-child td {
  border-bottom: 0;
}

.legal-page th {
  width: 28%;
  color: var(--navy);
  background: rgba(217, 228, 242, 0.54);
  font-weight: 700;
  white-space: nowrap;
}

.legal-page td {
  background: rgba(255, 255, 255, 0.62);
}

.legal-page td p {
  margin: 0;
}

.legal-page td p + p {
  margin-top: var(--space-sm);
}

.legal-page .info-table {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
}

.legal-page .info-table th,
.legal-page .info-table td {
  padding: 14px 16px;
  font-size: 0.96rem;
}

.legal-page .contact,
.legal-page .note {
  display: grid;
  gap: var(--space-sm);
}

.legal-page .contact p,
.legal-page .note p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.legal-page .contact-link {
  display: inline-flex;
  width: fit-content;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-sm);
  padding: 0 18px;
  border-radius: 6px;
  background: var(--orange);
  color: #1F2937;
  font-weight: 700;
  text-decoration: none;
}

.legal-page .contact-link:hover {
  color: #111827;
  background: #D88906;
}

.legal-page .footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  font-size: 0.94rem;
}

@media (max-width: 767px) {
  .site-header {
    padding: 12px 14px;
  }

  .brand {
    font-size: 14px;
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
    width: 44px;
    height: 44px;
  }

  .site-footer {
    padding-bottom: 32px;
  }

  .legal-page {
    line-height: 1.75;
  }

  .legal-page .page {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }

  .legal-page .header {
    gap: var(--space-md);
  }

  .legal-page .toc,
  .legal-page .policy-section,
  .legal-page .contact,
  .legal-page .note,
  .legal-page .table-wrap {
    border-radius: 6px;
  }

  .legal-page .toc,
  .legal-page .policy-section,
  .legal-page .contact,
  .legal-page .note {
    padding: var(--space-md);
  }

  .legal-page .toc ol {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .legal-page .policy-section h2 {
    align-items: flex-start;
  }

  .legal-page table,
  .legal-page tbody,
  .legal-page tr,
  .legal-page th,
  .legal-page td {
    display: block;
    width: 100%;
  }

  .legal-page .table-wrap table {
    min-width: 0;
  }

  .legal-page th {
    padding: 14px 16px 8px;
    border-bottom: 0;
    white-space: normal;
  }

  .legal-page td {
    padding: 0 16px 16px;
  }

  .legal-page .info-table th {
    padding: 12px 14px 4px;
  }

  .legal-page .info-table td {
    padding: 0 14px 14px;
  }

  .legal-page tr {
    border-bottom: 1px solid var(--border);
  }

  .legal-page tr:last-child {
    border-bottom: 0;
  }

  .legal-page tr:last-child th,
  .legal-page tr:last-child td {
    border-bottom: 0;
  }

  .legal-page .contact-link {
    width: 100%;
  }
}