body{
    background-color: #f7f7f7;
}
.middle-box{
    z-index: 100;
    margin: 0 auto;
    width: 390px;
    /*height:100px;*/
    /*background-color: red;*/
}
#particles {
    width: 100%;
    height: 100%;
    position: absolute;
    overflow: hidden;
}
/*手机*/
@media screen and (max-width: 1080px) {
    .bigdiv {
        padding: 2%;
        margin: 40% 8%;
        width: 80%;
        margin-top: -260px;
    }
}
/*PC*/
@media screen and (min-width: 1080px) {
    .bigdiv {
        margin: auto;
        width: 350px;
        padding: 20px;
        margin-top: -260px;

    }
}
.bigdiv{
    position: absolute;
    z-index: 9999;
    /*border: #999 2px solid;*/
    background-color: rgba(255, 255, 255, 0.8);
}
.layui-btn{
    width:100%;
}
.margin_0_10{
    margin: 0 10px;
}
.site-h1 {
    margin-bottom: 20px;
    line-height: 30px;
    padding-bottom: 10px;
    color: #393D49;
    border-bottom: 1px solid #eee;
    font-size: 20px;
    font-weight: 400;
}
.layui-form-label{
    width:50px;
}
.layui-input-block{
    margin-left: 84px;
    margin-right: 20px;
}
