.product-detail-page { background: #fff; color: var(--b2b-text); }
.product-detail__hero { padding: clamp(70px, 8vw, 112px) 0; }
.product-detail__grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); align-items: center; gap: clamp(48px, 7vw, 104px); }
.product-detail__gallery { min-width: 0; }
.product-detail__media { aspect-ratio: 1 / 1; display: grid; place-items: center; overflow: hidden; padding: clamp(18px, 3vw, 42px); border: 1px solid var(--b2b-line); background: #fff; }
.product-detail__media img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.product-detail__thumbs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.product-detail__thumb { aspect-ratio: 1 / 1; min-width: 0; overflow: hidden; padding: 7px; border: 1px solid var(--b2b-line); background: #fff; cursor: pointer; transition: border-color 180ms ease, transform 180ms ease; }
.product-detail__thumb img { width: 100%; height: 100%; object-fit: contain; object-position: center; transition: transform 220ms ease; }
.product-detail__thumb:hover { border-color: var(--b2b-orange); transform: translateY(-2px); }
.product-detail__thumb:hover img { transform: scale(1.015); }
.product-detail__thumb.is-active { border-color: var(--b2b-orange); box-shadow: inset 0 0 0 1px var(--b2b-orange); }
.product-detail__thumb:focus-visible { outline: 3px solid var(--b2b-orange); outline-offset: 3px; }
.product-detail__copy h1 { margin: 14px 0 22px; color: var(--b2b-navy); font-size: clamp(40px, 5vw, 68px); letter-spacing: -.052em; line-height: 1.03; }
.product-detail__lead { max-width: 620px; margin: 0; color: var(--b2b-text); font-size: 18px; line-height: 1.75; }
.product-detail__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; margin-top: 34px; }
.product-detail__business-points { display: grid; gap: 10px; margin: 34px 0 0; padding: 25px 0 0; border-top: 1px solid var(--b2b-line); list-style: none; }
.product-detail__business-points li::before { content: "✓"; margin-right: 10px; color: var(--b2b-orange); font-weight: 900; }
.product-detail__related { background: var(--b2b-surface); }
.product-detail__related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; }
.product-detail__related-card { display: grid; gap: 12px; padding: 16px 16px 24px; border: 1px solid var(--b2b-line); background: #fff; color: var(--b2b-navy); text-decoration: none; transition: transform 180ms ease, border-color 180ms ease; }
.product-detail__related-card:hover { transform: translateY(-4px); border-color: var(--b2b-orange); }
.product-detail__related-card:focus-visible { outline: 3px solid var(--b2b-orange); outline-offset: 3px; }
.product-detail__related-media { aspect-ratio: 1 / 1; display: grid; place-items: center; overflow: hidden; background: #fff; }
.product-detail__related-media img { width: 100%; height: 100%; object-fit: contain; object-position: center; transition: transform 220ms ease; }
.product-detail__related-card:hover img { transform: scale(1.015); }
.product-detail__related-card strong { font-size: 20px; line-height: 1.3; }
.product-detail__related-card > span:last-child { color: var(--b2b-orange-dark); font-size: 13px; font-weight: 800; }
.product-detail__not-found { min-height: 60vh; padding: 100px 0; }
@media (max-width: 900px) { .product-detail__grid { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .product-detail__hero { padding: 58px 0 70px; } .product-detail__thumbs { display: flex; gap: 10px; overflow-x: auto; padding: 3px 3px 8px; scroll-snap-type: x proximity; } .product-detail__thumb { flex: 0 0 88px; scroll-snap-align: start; } .product-detail__related-grid { grid-template-columns: 1fr; } .product-detail__actions { align-items: stretch; flex-direction: column; } .product-detail__actions .b2b-button { width: 100%; } }
@media (prefers-reduced-motion: reduce) { .product-detail__thumb, .product-detail__thumb img, .product-detail__related-card, .product-detail__related-media img { transition: none; } .product-detail__thumb:hover, .product-detail__thumb:hover img, .product-detail__related-card:hover, .product-detail__related-card:hover img { transform: none; } }