/* ========================================
   グループ企業　設定
======================================== */
/* 事業カテゴリ */
.business-categories {
  display: grid;
  gap: 60px;
}

.business-category {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  border: 1px solid rgba(224, 32, 32, 0.1);
}

.business-category:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.category-header {
  background: linear-gradient(135deg, var(--primary-color), #ff4444);
  color: white;
  padding: 32px 40px;
  position: relative;
  overflow: hidden;
}

.category-header::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: skewX(-20deg);
  transform-origin: top right;
}

.category-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
  position: relative;
  z-index: 2;
}

.category-description {
  font-size: 1rem;
  opacity: 0.9;
  position: relative;
  z-index: 2;
}

.category-icon {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 3rem;
  opacity: 0.2;
  z-index: 1;
}

.companies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  padding: 40px;
  align-items: stretch;
}

.company-card {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #fafafa;
  border-radius: 12px;
  padding: 28px;
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
  min-height: 260px;
}


.company-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-color);
  transform: scaleY(0);
  transition: var(--transition);
  transform-origin: bottom;
}

.company-card:hover {
  background: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.company-card:hover::before {
  transform: scaleY(1);
}

.company-name {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--dark-color);
}

.company-name a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.company-name a:hover {
  color: #ff4444;
  text-decoration: underline;
}

.company-description {
  font-size: 0.95rem;
  color: #555;
  margin-bottom: 16px;
  line-height: 1.5;
}

.company-address {
  font-size: 0.85rem;
  color: #777;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.company-address::before {
  font-size: 0.8rem;
  margin-top: 2px;
  opacity: 0.7;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {

  .companies-grid {
    grid-template-columns: 1fr;
    padding: 30px 20px;
  }

  .category-header {
    padding: 24px 20px;
  }

  .category-title {
    font-size: 1.5rem;
  }

  .company-card {
    width: 100%;
    flex: 1 1 100%;
    padding: 16px 18px;
    min-height: auto;
    display: block;
  }

  .company-card p {
    margin-bottom: 0.6em;
  }

  .company-description,
  .company-address {
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 8px;
  }

  .breadcrumb {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .category-title {
    font-size: 1.3rem;
  }
}