:root {
  font-family: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  line-height: 1.6;
  font-weight: 400;
  color: #1f2937;
  background-color: #f3f4f6;
  --color-primary: #306d87;
  --color-accent: #00aaa0;
  --color-text: #1f2937;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-surface: #ffffff;
  --color-soft: #f9fafb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #f3f4f6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

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

.gradient-bg {
  background: linear-gradient(135deg, #306d87 0%, #00aaa0 100%);
}

.gradient-text {
  background: linear-gradient(135deg, #306d87 0%, #00aaa0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.site-header {
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 50;
  border-top: 4px solid var(--color-primary);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-brand {
  display: flex;
  align-items: center;
}

.site-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.header-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  color: var(--color-text);
}

.header-contact .phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
}

.header-contact .phone i {
  color: var(--color-accent);
}

.header-contact .hours {
  font-size: 12px;
  color: var(--color-muted);
}

.menu-button {
  display: none;
  border: none;
  background: transparent;
  color: #6b7280;
  font-size: 22px;
}

.main-content {
  flex: 1;
  padding: 48px 20px 64px;
}

.page-container {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-hero {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--color-text);
}

.page-lead {
  margin: 0;
  color: var(--color-muted);
}

.card-section {
  background: var(--color-surface);
  border-radius: 16px;
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.section-accent {
  height: 6px;
}

.section-body {
  padding: 24px 28px 28px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid #f3f4f6;
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.section-header.compact {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 16px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
}

.section-link {
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.notice-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.notice-item {
  padding: 14px 16px;
  border-radius: 12px;
  border-bottom: 1px solid #f3f4f6;
  transition: background 0.2s ease, color 0.2s ease;
}

.notice-item:last-child {
  border-bottom: none;
}

.notice-item:hover {
  background: var(--color-soft);
}

.notice-item--empty {
  background: #f8fafc;
}

.notice-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.notice-date {
  font-size: 12px;
  color: #9ca3af;
}

.notice-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid #d1fae5;
  background: #ecfdf3;
  color: #047857;
}

.notice-tag--important {
  background: #fef2f2;
  color: #b91c1c;
  border-color: #fee2e2;
}

.notice-tag--update {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #dbeafe;
}

.notice-tag--info {
  background: #f3f4f6;
  color: #4b5563;
  border-color: #e5e7eb;
}

.notice-tag--default {
  background: #ecfdf3;
  color: #047857;
  border-color: #d1fae5;
}

.notice-title {
  margin: 8px 0 4px;
  font-weight: 600;
  color: var(--color-text);
}

.notice-item:hover .notice-title {
  color: var(--color-accent);
}

.notice-body {
  margin: 0;
  color: var(--color-muted);
}

.manual-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.manual-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.manual-card {
  background: var(--color-surface);
  border-radius: 14px;
  border: 1px solid #eef2f7;
  overflow: hidden;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.manual-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 32px rgba(15, 23, 42, 0.1);
}

.card-accent {
  height: 4px;
}

.manual-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

.manual-meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.manual-icon {
  font-size: 28px;
  color: #ef4444;
}

.manual-date {
  font-size: 11px;
  color: #9ca3af;
}

.manual-title {
  margin: 0 0 8px;
  font-weight: 700;
  color: var(--color-text);
  min-height: 48px;
}

.manual-desc {
  margin: 0 0 16px;
  color: var(--color-muted);
  font-size: 13px;
  flex: 1 1 auto;
}

.manual-footer {
  background: var(--color-soft);
  border-top: 1px solid #f3f4f6;
  padding: 12px 20px;
  margin-top: auto;
}

.manual-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  font-size: 13px;
  font-weight: 600;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.faq-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-category {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9ca3af;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
}

.faq-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  display: inline-block;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  background: #ffffff;
}

.faq-button {
  width: 100%;
  border: none;
  background: transparent;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
  color: #374151;
  text-align: left;
  cursor: pointer;
}

.faq-button:hover {
  background: var(--color-soft);
  color: var(--color-primary);
}

.faq-content {
  padding: 12px 14px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid #f3f4f6;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background: var(--color-soft);
}

.chevron {
  transition: transform 0.3s ease;
  color: #9ca3af;
}

.site-footer {
  padding: 20px 20px;
  color: #ffffff;
  text-align: center;
  font-size: 12px;
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  font-weight: 500;
  opacity: 0.9;
}

@media (max-width: 900px) {
  .header-contact {
    display: none;
  }

  .menu-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 12px 16px;
  }

  .site-title {
    font-size: 22px;
  }

  .main-content {
    padding: 32px 16px 48px;
  }

  .section-body {
    padding: 20px;
  }

  .manual-title {
    min-height: auto;
  }
}