body{
    width: 100%;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}
.lf{float: left;}
.rf{float: right;}
.topimg>img{
    width: 100%;
}
.list_box{
    border-bottom: 1px solid #F0F0F0;
}
.gs_navigation{
    width: 1200px;
    overflow: hidden;
    margin: 0 auto;
}
.gs_navigation li{
    cursor: pointer;
    width: 300px;
    height: 130px;
}
.gs_navigation img{
    display: inline-block;
    vertical-align: middle;
}
.gs_uncheck{
    width: 50%;
    height: 128px;
    margin: 0 auto;
    text-align: center;
    line-height: 130px;
}
.integration{
    display: block;
    margin: 0 auto;
}


.navi_details{
    display: none;
    overflow: hidden;
}
.roof img{
    display: block;
    width: 60px;
    height: 60px;
    position: fixed;
    z-index: 10;
    bottom: 50px;
    right: 20px;
    cursor: pointer;
}
/* 特殊效果 */
.white{
    display: none!important;
}
.gs_navibkgd{
    border-bottom: 2px solid #3676CD;
}
.gs_According{
    display: block!important;
}