.slideshow {
    height: 400px;
    object-fit: cover;
}
/* ===== 产品缩略图统一尺寸（响应式双尺寸）===== */
.card-img-150,
.card-img-180,
.card-img-200,
.card-img-120,
.card-img-100 {
  overflow: hidden;
}

/* 默认（手机端基准）：缩略图高度 120px */
.card-img-150 { height: 120px; }
.card-img-180 { height: 140px; }
.card-img-200 { height: 160px; }
.card-img-120 { height: 100px; }
.card-img-100 { height: 80px; }

/* 图片撑满容器、等比裁剪、不变形、不留白 */
.card-img-150 img,
.card-img-180 img,
.card-img-200 img,
.card-img-120 img,
.card-img-100 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ===== 电脑端（≥576px）：恢复到较大高度 ===== */
@media (min-width: 576px) {
  .card-img-150 { height: 150px; }
  .card-img-180 { height: 180px; }
  .card-img-200 { height: 200px; }
  .card-img-120 { height: 120px; }
  .card-img-100 { height: 100px; }
}

/* ===== 手机端卡片内边距/字号微调（两列时更紧凑）===== */
@media (max-width: 575.98px) {
  .card { margin-bottom: 10px; }
  .card-body { padding: 10px 8px; }
  .card-title { font-size: 14px; margin-bottom: 4px; }
}