.cmp-container {
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
}

.cmp-container .top {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%; /* 初始宽度设置为50% */
    height: 100%;
    overflow: hidden;
}

.cmp-container .bottom {
    width: 100%;
    height: auto;
}

.cmp-slider {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: #333;
    cursor: ew-resize;
    z-index: 10;
    left: 50%; /* 初始位置在中间 */
}