body {
  background: linear-gradient(135deg, #eaf6ff 0%, #f5faff 100%);
  color: #222;
  font-family: 'Roboto', 'Open Sans', Arial, sans-serif;
}

.breadcrumb {
  margin: 32px 0 16px 0;
  font-size: 15px;
  color: #2196f3;
}

.breadcrumb a {
  color: #2196f3;
  text-decoration: none;
}

.breadcrumb span {
  color: #0a1a3c;
}

.product-detail-hero {
  width: 100%;
  background: linear-gradient(90deg, #0a1a3c 0%, #00e0d6 100%);
  border-radius: 32px;
  margin-bottom: 40px;
  box-shadow: 0 8px 32px rgba(0, 32, 64, 0.13);
  display: flex;
  align-items: center;
  min-height: 120px;
}

.product-detail-hero-content {
  padding: 36px 48px;
}

.product-detail-title {
  color: #fff;
  font-size: 38px;
  font-weight: 900;
  margin-bottom: 8px;
  letter-spacing: -2px;
}

.product-detail-subtitle {
  color: #e0f7fa;
  font-size: 18px;
}

.product-detail-main {
  display: flex;
  gap: 48px;
  margin-bottom: 48px;
  align-items: flex-start;
}

.product-detail-image img {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 6px 24px rgba(0, 32, 64, 0.10);
  border: 2px solid #00e0d6;
}

.product-detail-info {
  flex: 1;
}

.product-detail-info h2 {
  font-size: 22px;
  color: #2196f3;
  margin-bottom: 12px;
}

.product-detail-info p {
  font-size: 16px;
  color: #1a237e;
  margin-bottom: 16px;
}

.product-detail-spec {
  margin-bottom: 20px;
  color: #0a1a3c;
  font-size: 15px;
  padding-left: 18px;
}

.product-detail-spec li {
  margin-bottom: 4px;
}

.product-detail-related {
  margin-bottom: 48px;
}

.related-title {
  font-size: 22px;
  color: #2196f3;
  margin-bottom: 18px;
}

.related-list {
  display: flex;
  gap: 32px;
}

.related-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(0, 32, 64, 0.08);
  padding: 18px 12px;
  min-width: 140px;
  max-width: 180px;
  text-align: center;
  border-left: 4px solid #00e0d6;
  transition: box-shadow 0.3s, border-color 0.3s;
}

.related-card img {
  width: 60px;
  height: 60px;
  border-radius: 10px;
  margin-bottom: 8px;
}

.related-card span {
  color: #0a1a3c;
  font-size: 15px;
  font-weight: 700;
}

.related-card:hover {
  box-shadow: 0 8px 24px rgba(0, 224, 214, 0.13);
  border-left: 6px solid #2196f3;
}

@media (max-width: 900px) {
  .product-detail-main {
    flex-direction: column;
    gap: 18px;
  }

  .product-detail-image img {
    width: 100%;
    max-width: 80px;
    height: 80px;
  }

  .product-detail-hero-content {
    padding: 18px 8px;
  }

  .product-detail-title {
    font-size: 22px;
  }

  .related-list {
    flex-direction: column;
    gap: 12px;
  }

  .related-card {
    min-width: 0;
    max-width: 100%;
    padding: 10px 4px;
    border-radius: 8px;
  }
}