/* 往台 · 产品详情 */

.wt-product-detail {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  background: var(--wt-paper);
}

.wt-product-detail__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.wt-product-gallery__stage {
  position: sticky;
  top: calc(80px + env(safe-area-inset-top, 0px));
}

.wt-product-gallery__main {
  position: relative;
  border: 1px solid var(--wt-fog);
  border-top: 4px solid var(--wt-wine);
  border-radius: var(--wt-radius-lg);
  overflow: hidden;
  background: var(--wt-white);
}

.wt-product-gallery__slide {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  padding: 1.5rem;
  background: var(--wt-white);
}

.wt-product-gallery__slide img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.wt-product-gallery__arrow {
  position: absolute;
  top: 50%;
  z-index: 5;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  border: none;
  border-radius: var(--wt-radius);
  background: var(--wt-wine);
  color: var(--wt-white);
  cursor: pointer;
}

.wt-product-gallery__arrow--prev { left: 10px; }
.wt-product-gallery__arrow--next { right: 10px; }

.wt-product-gallery__thumbs { margin-top: 10px; }

.wt-product-gallery__thumb {
  width: 68px;
  height: 68px;
  padding: 3px;
  border: 2px solid var(--wt-fog);
  border-radius: var(--wt-radius);
  background: var(--wt-white);
  cursor: pointer;
  overflow: hidden;
}

.wt-product-gallery__thumbs .swiper-slide-thumb-active .wt-product-gallery__thumb {
  border-color: var(--wt-wine);
}

.wt-product-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.wt-product-info__badge {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.25em 0.65em;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--wt-wine);
  border: 1px solid var(--wt-wine);
  border-radius: var(--wt-radius);
}

.wt-product-info__title {
  margin: 0 0 1.25rem;
  padding-bottom: 1rem;
  font-family: var(--wt-font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: 0.04em;
  color: var(--wt-ink);
  border-bottom: 2px solid var(--wt-wine);
}

.wt-product-info__table {
  width: 100%;
  margin-bottom: 1.5rem;
  border-collapse: collapse;
  background: var(--wt-white);
  border: 1px solid var(--wt-fog);
}

.wt-product-info__table th,
.wt-product-info__table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--wt-fog);
  text-align: left;
  font-size: 0.9rem;
}

.wt-product-info__table th {
  width: 36%;
  color: var(--wt-wine);
  font-weight: 600;
  background: var(--wt-wine-soft);
}

.wt-product-info__content {
  padding: 1.5rem;
  background: var(--wt-white);
  border: 1px solid var(--wt-fog);
  border-left: 4px solid var(--wt-wine);
  line-height: 1.85;
}

@media (max-width: 991px) {
  .wt-product-detail__grid { grid-template-columns: 1fr; }
  .wt-product-gallery__stage { position: static; }
}