.left-window {
    position: fixed;
    right: 50px;
    top: 30%;
    z-index: 1001;
}

.left-window-box {
    margin-bottom: 10px;
    cursor: pointer;
    width: 68px;
    height: 68px;
    background: #fff;
    border-radius: 10px;
    position: relative;
}

.left-window-box1 {
    position: absolute;
    top: -30px;
    width: 68px;
    height: 68px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0px 3px 8px 0px rgba(42, 43, 41, 0.11);
    display: flex;
    align-items: center;
    justify-content: center;
}

.left-window-box1 > img {
    width: 54px;
    height: 54px;
    display: block;
}

.left-window-box-text {
    width: 100%;
    color: #4B89FC;
    font-size: 14px;
    text-align: center;
    position: absolute;
    bottom: 10px;
}

.b-img {
    position: absolute;
    left: 50%;
    transform: translate(-50%);
    top: 10px;
}

.po-box {
    transition: all .4s;
    overflow: hidden;
    border-radius: 10px;
    position: absolute;
    background: #fff;
    top: -85px;
    left: -190px;
    width: 180px;
    height: 0;
    /*height: 220px;*/
}

.po-box-title {
    color: #666;
    font-size: 12px;
    text-align: center;
    margin-top: 10px;
}
.po-box-title2{
    text-align: center;
    font-size: 14px;
    color: #333;
    margin-bottom: 10px;
}

.po-box-qrcode-box {
    width: 138px;
    height: 138px;
    margin: 20px auto 10px;
    position: relative;
}
.po-box-qrcode-box>img{
    width: 100px;
    height: 100px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    display: block;
}

.po-jiao1 {
    top: 0;
    left: 0;
    position: absolute;
    width: 18px;
    height: 18px;
    border-top: 2px solid #4B89FC;
    border-left: 2px solid #4B89FC;
}

.po-jiao2 {
    top: 0;
    right: 0;
    position: absolute;
    width: 18px;
    height: 18px;
    border-top: 2px solid #4B89FC;
    border-right: 2px solid #4B89FC;
}

.po-jiao3 {
    bottom: 0;
    right: 0;
    position: absolute;
    width: 18px;
    height: 18px;
    border-bottom: 2px solid #4B89FC;
    border-right: 2px solid #4B89FC;
}

.po-jiao4 {
    bottom: 0;
    left: 0;
    position: absolute;
    width: 18px;
    height: 18px;
    border-bottom: 2px solid #4B89FC;
    border-left: 2px solid #4B89FC;
}