.cases-intro {
  max-width: 800px;
  margin: 0 auto 48px;
  text-align: center;
}

.cases-intro h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 16px;
}

.cases-intro p {
  font-size: 1rem;
  color: var(--color-text-2);
  line-height: 1.8;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
}

.case-meta span {
  font-size: 0.75rem;
  color: var(--color-text-2);
}

.case-meta strong {
  color: var(--color-text-1);
}

.case-detail {
  padding: 48px 0;
}

.case-header {
  text-align: center;
  margin-bottom: 48px;
  position: relative;
  background-color: transparent;
}

.case-category-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 16px;
  margin-bottom: 16px;
}

.case-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #003366;
  margin-bottom: 16px;
  line-height: 1.3;
}

.case-subtitle {
  font-size: 1.125rem;
  color: #666666;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

.case-hero {
  margin-bottom: 48px;
}

.case-hero-image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

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

.case-overview {
  margin-bottom: 64px;
}

.case-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 40px;
  background-color: var(--color-bg-light);
  border-radius: var(--border-radius-lg);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  background-color: var(--color-primary);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon i {
  font-size: 28px;
  color: var(--color-white);
}

.stat-content {
  flex: 1;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-1);
}

.case-content {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
}

.case-main {
  flex: 1;
}

.case-section {
  margin-bottom: 48px;
}

.case-section h2 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 24px;
  line-height: 1.4;
}

.case-section p {
  font-size: 1rem;
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 16px;
}

.case-section ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

.case-section li {
  font-size: 1rem;
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: 12px;
}

.case-section li strong {
  color: var(--color-text-1);
  font-weight: 600;
}

.case-sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.sidebar-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--border-radius-lg);
  padding: 32px;
}

.sidebar-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-1);
  margin-bottom: 24px;
}

.sidebar-card > p {
  font-size: 0.875rem;
  color: var(--color-text-2);
  line-height: 1.6;
  margin-bottom: 24px;
}

.sidebar-card .btn-block + .btn-block {
  margin-top: 12px;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

.related-cases {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.related-case-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  background-color: var(--color-bg-light);
  border-radius: var(--border-radius);
  transition: var(--transition);
  text-decoration: none;
}

.related-case-item:hover {
  background-color: rgba(0, 102, 204, 0.08);
}

.related-case-item img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--border-radius);
  flex-shrink: 0;
}

.related-case-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.related-case-category {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.related-case-info h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-1);
  line-height: 1.4;
  margin: 0;
}

@media (max-width: 1200px) {
  .case-content {
    grid-template-columns: 1fr;
  }

  .case-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sidebar-card {
    flex: 1;
    min-width: 300px;
  }
}

@media (max-width: 992px) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .cases-intro h2 {
    font-size: 1.5rem;
  }

  .cases-grid {
    grid-template-columns: 1fr;
  }

  .case-detail {
    padding: 32px 0;
  }

  .case-header h1 {
    font-size: 1.75rem;
  }

  .case-subtitle {
    font-size: 1rem;
  }

  .case-stats {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .case-section h2 {
    font-size: 1.5rem;
  }

  .case-sidebar {
    flex-direction: column;
  }

  .sidebar-card {
    min-width: auto;
  }
}