/* sample 样品中心样式 */
.sample-card {
    transition: transform .15s ease, box-shadow .15s ease;
}
.sample-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 .5rem 1rem rgba(0,0,0,.1)!important;
}
/* 样品缩略图：外层正方形裁剪容器（对 <img> 用固定容器方案，避免 aspect-ratio 在 img 上失效） */
.sample-thumb {
    width: 100%;
    aspect-ratio: 1/1;
    overflow: hidden;
    background: #f2f2f2;
    position: relative;
    cursor: pointer;
}
.sample-thumb .sample-img {
    width: 100%;
    height: 100%;
    object-fit: cover;   /* 居中裁剪，不变形 */
    object-position: center;
    display: block;
}
.sample-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: .7rem;
}
.sample-spec {
    font-size: .78rem;
    color: #6c757d;
}
.sample-actions .btn {
    font-size: .78rem;
}