/* 境禾项目 - 产品页面样式（展示版） */

/* Products Filter */
.products-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  margin-top: 100px;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--color-primary-light);
  background-color: transparent;
  color: var(--color-dark-gray);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.product-item {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.product-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  display: block;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-item:hover .product-image img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  padding: 0.375rem 0.75rem;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.product-info {
  padding: var(--spacing-md);
}

.product-category {
  font-size: 0.85rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.product-name {
  font-size: 1.25rem;
  color: var(--color-black);
  margin-bottom: var(--spacing-xs);
  font-family: var(--font-primary);
}

.product-name a:hover {
  color: var(--color-primary);
}

.product-desc {
  color: var(--color-gray);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Product Detail */
.product-detail {
  padding-top: 120px;
  background-color: var(--color-white);
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

/* Product Gallery */
.product-gallery {
  position: sticky;
  top: 100px;
}

.product-gallery-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
  background-color: var(--color-cream);
}

.product-gallery-main img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: opacity 0.3s ease;
}

.product-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xs);
}

.product-gallery-thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.product-gallery-thumb:hover,
.product-gallery-thumb.active {
  border-color: var(--color-primary);
}

.product-gallery-thumb img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

/* Product Info */
.product-detail-info {
  padding: var(--spacing-md) 0;
}

.product-detail-category {
  font-size: 0.9rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-xs);
}

.product-detail-title {
  font-size: 2.5rem;
  color: var(--color-black);
  margin-bottom: var(--spacing-md);
  font-family: var(--font-primary);
}

.product-detail-description {
  color: var(--color-dark-gray);
  line-height: 2;
  margin-bottom: var(--spacing-md);
  font-size: 1.05rem;
}

/* Product Tabs */
.product-tabs {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-light-gray);
}

.product-tabs-nav {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-light-gray);
}

.product-tab-btn {
  padding: var(--spacing-sm) 0;
  font-size: 1rem;
  color: var(--color-gray);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
  background: none;
  cursor: pointer;
}

.product-tab-btn:hover,
.product-tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.product-tab-content {
  display: none;
  padding: var(--spacing-md) 0;
}

.product-tab-content.active {
  display: block;
}

.product-tab-content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-black);
  font-family: var(--font-primary);
}

.product-tab-content p {
  color: var(--color-dark-gray);
  line-height: 2;
  margin-bottom: var(--spacing-md);
}

.product-tab-content ul {
  margin-left: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.product-tab-content li {
  color: var(--color-dark-gray);
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

/* Specifications Table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
}

.specs-table tr {
  border-bottom: 1px solid var(--color-light-gray);
}

.specs-table th,
.specs-table td {
  padding: var(--spacing-sm) 0;
  text-align: left;
}

.specs-table th {
  color: var(--color-gray);
  font-weight: 400;
  width: 30%;
}

.specs-table td {
  color: var(--color-dark-gray);
}

/* Related Products */
.related-products {
  background-color: var(--color-cream);
}

@media (max-width: 992px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .product-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .product-gallery {
    position: relative;
    top: 0;
  }
  
  .product-detail-title {
    font-size: 1.75rem;
  }
}

@media (max-width: 576px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .product-tabs-nav {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }
}