.hiding-place {
    width: 100px;
    height: 100px;
    border: 2px dashed #ccc;
    margin: 10px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    background-color: #eee;
}
.hiding-place img {
    max-width: 100%;
    max-height: 100%;
    display: block;
}
.found-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 255, 0, 0.3); /* 半透明绿色 */
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    color: white;
    font-weight: bold;
    display: none; /* 默认隐藏 */
}
.found .found-overlay {
    display: flex; /* 找到后显示 */
}