/**
 * サイト共通カテゴリナビ（アイコン上・ラベル下）
 * 配色は従来のクリーム／アンバー系（#FDE8BA / #F9BA34）に合わせる。
 * 高さは marine ページのサブナビ offset 等と揃えるため変数で公開する。
 */
:root {
  --site-category-nav-height: 4.75rem;
}

@media (min-width: 768px) {
  :root {
    --site-category-nav-height: 5.125rem;
  }
}

.site-category-nav {
  position: sticky;
  top: 0;
  z-index: 900;
  display: flex;
  width: 100%;
  min-height: var(--site-category-nav-height);
  box-sizing: border-box;
  background-color: rgba(253, 232, 186, 0.95);
  border-top: 1px solid #fde8ba;
  box-shadow: 0 1px 0 0 rgba(249, 186, 52, 0.06);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

@supports ((-webkit-backdrop-filter: blur(4px)) or (backdrop-filter: blur(4px))) {
  .site-category-nav {
    background-color: rgba(253, 232, 186, 0.88);
  }
}

.site-category-nav a {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.125rem;
  padding: 0.45rem 0.2rem 0.55rem;
  text-align: center;
  text-decoration: none;
  color: #404040;
  font-weight: 700;
  font-size: 0.625rem;
  line-height: 1.15;
  letter-spacing: 0.01em;
  border-bottom: 3px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

@media (min-width: 768px) {
  .site-category-nav a {
    font-size: 0.8125rem;
    padding: 0.55rem 0.35rem 0.65rem;
    gap: 0.2rem;
  }
}

.site-category-nav a:hover {
  background-color: rgba(249, 186, 52, 0.7);
  color: #171717;
}

.site-category-nav a:focus-visible {
  outline: 2px solid #a3a3a3;
  outline-offset: -2px;
  z-index: 1;
}

.site-category-nav a[aria-current="page"] {
  background-color: rgba(249, 186, 52, 0.25);
  border-bottom-color: #f9ba34;
  color: #171717;
}

.site-category-nav__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 1.75rem;
  width: 2.25rem;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .site-category-nav__icon {
    height: 2rem;
    width: 2.5rem;
  }
}

.site-category-nav__icon-img {
  display: block;
  height: 100%;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.site-category-nav__lines {
  display: block;
}

.site-category-nav__lines span {
  display: block;
}