.layer-shade {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgb(0, 0, 0, .5);
    z-index: 11;
    display: none;
}

.lianxi-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 99;
    background-color: #fff;
    width: 450px;
    padding: 20px 20px 30px 20px;
}

.guanbi {
    position: absolute;
    right: 0;
    top: 0px;
    width: 60px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    font-size: 20px;
    cursor: pointer;
}

.lianxi-box .layui-input-block {
    margin-left: 0;
}
.lianxi-box .layui-form{
    margin-top: 20px;
}