/* ============================================================
   产品中心页面样式
   ============================================================ */

.product-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-lg);
}

.catalog-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-base);
  flex-wrap: wrap;
}

.search-input {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-full);
  border: 1px solid rgba(0, 92, 175, 0.18);
  background: rgba(255, 255, 255, 0.9);
  min-width: min(320px, 100%);
  box-shadow: 0 12px 24px rgba(9, 29, 61, 0.08);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 92, 175, 0.18);
  outline: none;
}

.search-status {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

.catalog-filters {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.chip-filter {
  border: none;
  padding: var(--spacing-sm) var(--spacing-base);
  border-radius: var(--border-radius-full);
  background: rgba(0, 92, 175, 0.08);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chip-filter:hover,
.chip-filter.active {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
  color: var(--color-white);
  box-shadow: 0 12px 24px rgba(9, 29, 61, 0.18);
}

.catalog-table-wrapper {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 48px rgba(9, 29, 61, 0.12);
  border: 1px solid rgba(0, 92, 175, 0.08);
}

.table-responsive {
  overflow-x: auto;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 18px 40px rgba(9, 29, 61, 0.12);
  border: 1px solid rgba(0, 92, 175, 0.08);
}

.catalog-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
}

.catalog-table th,
.catalog-table td {
  padding: var(--spacing-base) var(--spacing-lg);
  text-align: left;
  vertical-align: middle;
}

.catalog-table tbody tr:nth-child(odd) {
  background-color: rgba(243, 246, 251, 0.6);
}

.catalog-table tbody tr:hover {
  background-color: rgba(77, 208, 225, 0.12);
}

.catalog-table .link-download {
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

.catalog-table .link-download:hover {
  color: var(--color-secondary);
}

.document-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-xl);
}

.document-card {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 38px rgba(9, 29, 61, 0.12);
  border: 1px solid rgba(0, 92, 175, 0.08);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-base);
}

.document-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

.doc-tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-full);
  background: rgba(0, 92, 175, 0.12);
  color: var(--color-primary);
}

.doc-type {
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
}

.document-card h3 {
  color: var(--color-dark-text);
  font-size: var(--font-size-xl);
}

.document-card p {
  color: var(--color-gray);
  flex: 1;
}

.document-card .link-download {
  align-self: flex-start;
  font-weight: var(--font-weight-semibold);
}

.coa-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-base);
  flex-wrap: wrap;
}

.coa-result {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
  background: rgba(243, 246, 251, 0.7);
  border: 1px solid rgba(0, 92, 175, 0.12);
  box-shadow: 0 18px 38px rgba(9, 29, 61, 0.08);
}

.coa-placeholder {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-gray);
}

.coa-placeholder h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-base);
}

.sample-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-footer {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-base);
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

.form-feedback {
  font-size: var(--font-size-sm);
  color: var(--color-secondary);
}

.form-feedback.success {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

.coa-detail {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 92, 175, 0.1);
  box-shadow: 0 18px 40px rgba(9, 29, 61, 0.1);
}

.coa-header {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.coa-header h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.coa-meta {
  display: flex;
  gap: var(--spacing-base);
  flex-wrap: wrap;
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

.coa-meta span strong {
  color: var(--color-secondary);
  margin-left: var(--spacing-xs);
}

.coa-specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-base);
}

.coa-specs li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-base);
  border-radius: var(--border-radius-base);
  background: rgba(0, 92, 175, 0.05);
  color: var(--color-dark-text);
}

.coa-specs li span {
  color: var(--color-gray);
}

.coa-specs li strong {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.coa-note {
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

@media (max-width: 768px) {
  .catalog-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .coa-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .catalog-table th,
  .catalog-table td {
    padding: var(--spacing-sm) var(--spacing-base);
  }

  .document-card {
    padding: var(--spacing-lg);
  }
}