/* 笔记本或PC */
@media screen and (min-width: 1024px) and (max-width: 1280px) {
    .zbb509header .zbb509navmenu {
        position: absolute;
        left: 492px;
        top: 0;
    }

}

/* ##平板电脑/Ipad竖屏 */
@media screen and (min-width: 768px) and (max-width: 1023px) {
    .zbb509header .zbb509navmenu {
        position: absolute;
        left: 247px;
        top: 0;
    }

    .product .zbb509col-md3,.cpzx{
        width: 50%;
        text-align: center;
        float: left;
    }
    .Nctn .zbb509col-md3
    {
        width: 20%;
        float: left;
        text-align: center;
    }
    .Nctn .zbb509col-md6
    {
        width: 60%;
        float: left;
        text-align: center;
    }
    .Nctn .zbb509col-md3
    {
        width: 20%;
        float: left;
        text-align: center;
    }

}

/* 多数竖屏的智能手机 */



@media screen and (min-width: 320px) and (max-width: 767px) {
    .layui-nav .layui-nav-item a{
        color: #272727;
    }
    .Nctn .zbb509col-md3
    {
        width: 20%;
        float: left;
        text-align: center;
    }
    .Nctn .zbb509col-md6
    {
        width: 60%;
        float: left;
        text-align: left;
    }
    .Nctn .zbb509col-md3
    {
        width: 20%;
        float: left;
        text-align: center;
    }
    /* .News .zbb509col-md6:nth-of-type(2){
        clear: both;
    } */
}



/* 公共 */
@media screen and (min-width: 320px) and (max-width: 1023px) {
    .Nctn p, .Nctn span{
        text-align: left;
    }
}