/* =========================================================
   产品详情页样式
   ========================================================= */

.prod-detail { padding: 50px 0; }
.prod-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; }

.prod-gallery { background:#fff; border:1px solid var(--line); border-radius: var(--radius); padding:18px; }
.prod-main-img {
  background: linear-gradient(135deg, var(--bg-soft), #fff);
  border-radius: 10px;
  aspect-ratio: 4/3;
  display: grid; place-items: center;
  overflow: hidden;
  margin-bottom: 14px;
}
.prod-main-img img { max-width: 100%; max-height: 100%; object-fit: contain; }
.prod-main-img .placeholder { color: var(--muted); font-size: 14px; padding: 30px; text-align: center; }

.prod-thumbs { display: flex; gap: 10px; flex-wrap: wrap; }
.prod-thumbs .thumb {
  width: 70px; height: 70px; border-radius: 8px; border: 2px solid transparent;
  background: var(--bg-soft); display: grid; place-items: center;
  cursor: pointer; overflow: hidden; transition: border-color .15s ease;
}
.prod-thumbs .thumb.active { border-color: var(--accent); }
.prod-thumbs .thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }

.prod-info .prod-cat {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  font-weight: 700; font-size: 12px; padding: 4px 12px; border-radius: 999px;
  margin-bottom: 12px; letter-spacing: .5px;
}
.prod-info .prod-name { font-size: 28px; line-height: 1.3; margin-bottom: 6px; color: var(--primary-dark); }
.prod-info .prod-name-en { color: var(--muted); font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.prod-info .prod-desc { color: var(--text); font-size: 14.5px; line-height: 1.7; margin-bottom: 22px; padding: 14px; background: var(--bg-soft); border-radius: 10px; }

.spec-table {
  width: 100%; border-collapse: collapse; background: #fff; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--line); margin-bottom: 22px;
}
.spec-table tr { border-bottom: 1px solid var(--line); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: 11px 14px; font-size: 14px; }
.spec-table td:first-child { color: var(--muted); font-weight: 600; width: 44%; background: var(--bg-soft); }
.spec-table td:last-child { color: var(--text); font-weight: 500; }

.prod-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 22px; }
.prod-actions .btn { padding: 12px 22px; font-size: 14px; }

.prod-quick {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
  padding: 16px; background: var(--primary-light); border-radius: 10px;
}
.pq-item {
  display: block; text-align: center; padding: 10px 6px; border-radius: 8px;
  background: #fff; font-size: 12.5px; color: var(--text); transition: transform .15s ease;
}
.pq-item:hover { transform: translateY(-2px); }
.pq-item b { display: block; color: var(--primary-dark); font-size: 14px; margin-top: 4px; }
.pq-item small { color: var(--muted); }

.prod-related { padding: 50px 0 0; }
.prod-related h3 { font-size: 22px; margin-bottom: 22px; }
.prod-related .grid-4 .cat-card { padding: 20px; }
.prod-related .cat-card .ic { font-size: 22px; width: 44px; height: 44px; }

.prod-cta { padding: 50px 0 0; }
.prod-cta .custom-cta { padding: 40px; }
.prod-cta ul.ul-check { list-style: none; padding: 0; margin-top: 16px; }
.prod-cta ul.ul-check li { color: #dbe8fa; padding: 8px 0; font-size: 14.5px; }

/* English overlay */
[data-lang=en] .prod-info .prod-name-en { display: none; }
[data-lang=en] .zh-only { display: none; }
[data-lang=zh] .en-only { display: none; }

@media (max-width: 980px) {
  .prod-grid { grid-template-columns: 1fr; }
  .prod-quick { grid-template-columns: repeat(2, 1fr); }
}