/* 产品详情页样式 */

.product-wrap { padding: 24px 0 78px; }

.product-top {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 46px; align-items: start;
  padding-bottom: 34px; border-bottom: 1px solid var(--line);
}
.gallery { display: grid; gap: 12px; }
.gallery-main {
  display: grid; place-items: center;
  padding: 26px; min-height: 320px;
  background: var(--paper-warm);
  border: 1px solid var(--line); border-radius: var(--radius-lg);
}
.gallery-main img { max-height: 420px; width: auto; object-fit: contain; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.gallery-thumbs img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: contain;
  padding: 6px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .2s ease;
}
.gallery-thumbs img:hover { border-color: var(--brand); }

.product-info h1 { font-size: 1.78rem; line-height: 1.35; margin-bottom: .35em; }
.product-info .cat-line { font-size: .86rem; color: var(--muted); margin-bottom: 18px; }
.product-info .cat-line a { color: var(--brand-strong); font-weight: 600; }
.product-lead { font-size: .98rem; color: var(--ink-3); margin-bottom: 22px; }

.product-facts { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 10px; }
.product-facts li {
  display: grid; grid-template-columns: 96px 1fr; gap: 12px;
  padding-bottom: 10px; border-bottom: 1px dashed var(--line);
  font-size: .92rem;
}
.product-facts b { color: var(--muted); font-weight: 600; }

.service-box {
  padding: 20px 22px; margin-bottom: 24px;
  background: var(--brand-soft);
  border-radius: var(--radius-lg);
  font-size: .92rem; color: var(--ink-2);
}
.service-box h2 {
  font-size: .82rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--brand-deep); margin-bottom: 10px;
}
.service-box p { margin: 0 0 .5em; }
.service-box p:last-child { margin: 0; }

.contact-box {
  display: grid; gap: 10px;
  padding: 20px 22px;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
}
.contact-box .row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; font-size: .9rem; }
.contact-box .row span { color: var(--muted); }
.contact-box .row strong { color: var(--ink); font-size: 1rem; }
.contact-box .btn-row { margin-top: 6px; }

.product-body { padding-top: 38px; }
.product-body .section-label {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 22px;
}
.product-body .section-label h2 { font-size: 1.22rem; margin: 0; }
.product-body .section-label::after { content: ""; flex: 1 1 auto; height: 1px; background: var(--line); }

.related { margin-top: 54px; }
.related h2 { font-size: 1.16rem; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.related-item {
  display: flex; flex-direction: column; gap: 10px;
  padding: 16px; border: 1px solid var(--line); border-radius: var(--radius-lg);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.related-item:hover { border-color: var(--brand-tint); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.related-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: var(--paper-warm); border-radius: var(--radius); }
.related-item span { font-size: .88rem; color: var(--ink-2); line-height: 1.5; }

@media (max-width: 1080px) {
  .product-top { grid-template-columns: 1fr; gap: 28px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .product-info h1 { font-size: 1.42rem; }
  .gallery-thumbs { grid-template-columns: repeat(4, 1fr); }
  .product-facts li { grid-template-columns: 84px 1fr; }
}

/* ---------------- 细节补强 ---------------- */
.related-item span:first-child { font-weight: 600; color: var(--ink); line-height: 1.5; }
.related-item .u-small {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}