.product-detail { padding: 48px 0; }
.product-breadcrumb { margin-bottom: 24px; font-size: 14px; }
.product-detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-bottom: 64px; }
.product-gallery { display: flex; flex-direction: column; gap: 16px; }
.product-gallery-main { width: 100%; aspect-ratio: 1/1; border: 1px solid var(--color-border); border-radius: 4px; overflow: hidden; background-color: var(--color-surface-alt); }
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-gallery-thumbs { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 4px; }
.product-thumb { width: 80px; height: 80px; border: 1px solid var(--color-border); border-radius: 4px; cursor: pointer; overflow: hidden; opacity: 0.7; transition: all 0.2s; padding: 0; background: var(--color-surface-alt); }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-thumb:hover { opacity: 1; border-color: var(--color-primary-light); }
.product-thumb.active { opacity: 1; border-color: var(--color-primary); box-shadow: inset 0 0 0 1px var(--color-primary); }
.product-info { display: flex; flex-direction: column; gap: 24px; }
.product-category-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--color-text-secondary); font-weight: 600; }
.product-title { font-size: 32px; font-weight: 700; color: var(--color-text); margin: 0; line-height: 1.2; }
.product-code { font-size: 14px; color: var(--color-text-secondary); margin: 0; }
.product-short-desc { font-size: 16px; line-height: 1.6; color: var(--color-text-secondary); margin: 0; border-bottom: 1px solid var(--color-border); padding-bottom: 24px; }
.product-price-block { display: flex; align-items: baseline; gap: 16px; }
.product-stock { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; }
.product-stock.in-stock { color: var(--color-success); }
.product-stock.out-of-stock { color: var(--color-danger); }
.product-package-info { background-color: var(--color-surface-alt); padding: 16px; border-radius: 4px; font-size: 14px; border: 1px solid var(--color-border); }
.product-min-order { display: block; font-weight: 600; color: var(--color-text); margin-bottom: 4px; }
.qty-control { display: flex; align-items: center; border: 1px solid var(--color-border); border-radius: 4px; overflow: hidden; width: max-content; }
.qty-btn { width: 40px; height: 40px; background: var(--color-surface-alt); border: none; font-size: 18px; cursor: pointer; color: var(--color-text); transition: background-color 0.2s; }
.qty-btn:hover { background-color: #e2e2e2; }
.qty-input { width: 60px; height: 40px; text-align: center; border: none; border-left: 1px solid var(--color-border); border-right: 1px solid var(--color-border); font-size: 16px; font-weight: 500; outline: none; }
.product-cta-btn { display: flex; gap: 16px; margin-top: 16px; }
.product-tabs { margin-top: 48px; border-top: 1px solid var(--color-border); padding-top: 48px; }
.tab-btn { background: none; border: none; border-bottom: 2px solid transparent; padding: 0 0 12px 0; margin-right: 32px; font-size: 16px; font-weight: 600; color: var(--color-text-secondary); cursor: pointer; transition: all 0.2s; }
.tab-btn:hover { color: var(--color-text); }
.tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.tab-content { padding-top: 32px; }
.tab-pane { display: none; font-size: 15px; line-height: 1.6; color: var(--color-text-secondary); }
.tab-pane.active { display: block; }
.specs-table { width: 100%; border-collapse: collapse; margin-top: 24px; }
.specs-table th, .specs-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--color-border); }
.specs-table th { background-color: var(--color-surface-alt); font-weight: 600; width: 30%; color: var(--color-text); }
.related-products { margin-top: 80px; }