/* 上传区域样式优化 */
.upload-area {
    border: 2px dashed #ced4da;
    border-radius: 8px;
    padding: 30px 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}
.upload-area:hover {
    border-color: #0d6efd;
    background-color: #f8f9fa;
}
/* 图片预览卡片样式 */
.img-preview-card {
    position: relative;
    width: 100%;
    height: 160px;
    overflow: hidden;
    border-radius: 6px;
    margin-bottom: 10px;
}
.img-preview-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.2s ease;
}
.img-preview-card:hover img {
    transform: scale(1.05);
}
/* 图片删除按钮 */
.img-del-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: rgba(255, 0, 0, 0.8);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
}
.img-del-btn:hover {
    background-color: #dc3545;
}