@media only screen and (min-width: 360px) {
    .first-containner-download{
        top: 100px;
        padding-top: 50px;
        padding-bottom: 20px;
    }
    .download_btn {
        text-align: center;
    }
}
@media only screen and (min-width: 640px) {
    .first-containner-download{
        height: 150px;
    }
    
}
@media only screen and (max-width:767px) {
    .navbar-left > li{
        display: flex;
        align-items: center;
        height: 40px !important;
        line-height: 40px !important;
    }
    .navbar-right>li{
        display: flex;
        align-items: center;
        height: 40px !important;
        line-height: 40px !important;
    }
    .download_item{
        display: none;
    }
    .title-content{
        top: 0px;
    }
    .title{
        top: 70px;
        color: white;
        font-size: 16px;
        line-height: 50px;
        font-weight: bold;
    }
    .little-title{
        padding-top: 40px;
        color: white;
        font-size: 10px;
        line-height: 14px;
    }
    .content-second{
        padding-top: 0 !important;
        flex-direction: column;
    }
    .content-second-left-title{
        top: -40px !important;
        font-size: 20px !important;
        font-weight: bold !important;
    }
    .content-second-left-content{
        width: 100% !important;
    }
    .img1-wrapper{
        padding-left: 20px;
        padding-right: 20px;
    }
    .img1{
        width: 100%;
    }
    .content-third{
        height: auto !important;
        flex-direction: column-reverse;
    }
    .content-third-right {
        margin-top: 30px !important;
        padding-left: 20px;
        padding-right: 20px;
        position: relative;
    }
    .content-third-right-title {
        font-size: 20px !important;
        font-weight: bolder !important;
    }
    .content-third-left{
        margin-top: 120px !important;
        padding-bottom: 30px !important;
    }
    .content-third-right> ul{
        width: 100% !important;
        padding-right: 15px !important;
    }
   
    .content-fourth-title {
        padding-top: 20px !important;
    }
    .content-fourth-title > span {
        font-size: 20px !important;
        font-weight: bold !important;
    }
    .group{
        width: auto;
        padding-top: 20px !important;
        flex-direction: column;
    }
    .group-item{
        width: 80% !important;
        margin-bottom: 20px;
        margin-left: 10%;
    }
    .group-img {
        margin-top: 43px;
        margin-bottom: 23px;
        width: 100px !important;
        height: 100px !important;
        border-radius: 8px;
    }
    footer {
        font-size: 10px !important;
        color: #606266FF;
        padding:0 10px;
        height: 60px !important;
    }
    .footer-content{
        flex-direction: column;
    }
    .footer-item{
        height: 30px;
        line-height: 30px;
        text-align: center;
    }
    .notice{
        display: none;
    }
    .login-btn{display: none;}
    .reg-btn{display: none;}
    .login-li{
        display: none !important;
    }
}
@media only screen and (min-width: 768px) {
    
    .first-containner-download{
        height: 240px;
    }
    .download_item{
        margin-top: 60px;
        width: 70px;
        height: 70px;
    }
    .first-containner-download .download{
        width: 310px;
    }
    .download_item:hover .download_item_img2 {
        display: block;
        position: relative;
        height: 80px;
        width: 80px;
        background: white;
        border-radius: 8px;
    }
    .title-content{
        position: relative;
        top: 120px;
    }
    .title{
        top: 80px;
        color: white;
        font-size: 30px;
        line-height: 71px;
        font-weight: bold;
    }

    .little-title{
        position: relative;
        top: -15px;
        color: white;
        font-size: 10px;
        line-height: 31px;
    }
    .download_btn{
        display: none;
    }
    .notice{
        position: relative;
        right: -300px;
        bottom: 20px;
        color: #FFFFFFFF;
        font-size: 10px;
    }
}
@media only screen and (min-width: 1024px) {
    .first-containner-download{
        height: 320px;
    }
    .first-containner-download .download{
        width: 360px;
    }
    .download_item{
        margin-top: 80px;
        width: 80px;
        height: 80px;
    }
    .download_item:hover .download_item_img2 {
        display: block;
        position: relative;
        height: 80px;
        width: 80px;
        background: white;
        border-radius: 8px;
    }
    .download_item_span{
        font-size: 12px !important;
    }
    .title-content{
        position: relative;
        top: 120px;
    }
    .title{
        top: 80px;
        color: white;
        font-size: 30px;
        line-height: 71px;
        font-weight: bold;
    }
    .little-title{
        padding-top: 70px;
        color: white;
        font-size: 16px;
        line-height: 31px;
    }
    .download_btn{
        display: none;
    }
    .notice{
        position: relative;
        right: -400px;
        bottom: 20px;
        color: #FFFFFFFF;
        font-size: 16px;
    }
}
@media only screen and (min-width: 1280px) {
    .container {
        width: 1280px;
    }
    .header{
        width: 1280px;
    }
    .title-content{
        position: relative;
        top: 120px;
    }
    .title{
        top: 115px;
        color: white;
        font-size: 40px;
        line-height: 71px;
        font-weight: bold;
    }
    .little-title{
        position: relative;
        top: 20px;
        color: white;
        font-size: 20px;
        line-height: 31px;
    }
    .first-containner-download{
        height: 400px;
    }
    .first-containner-download .download{
        width: 480px;
    }
    .download_item{
        margin-top: 140px;
        width: 100px;
        height: 100px;
    }
    .download_item_span{
        font-size: 12px !important;
    }
    .download_item:hover .download_item_img2 {
        display: block;
        position: relative;
        height: 80px ;
        width: 80px;
        background: white;
        border-radius: 8px;
        margin-top: 10px;
        margin-left: 10px;
    }
    .download_item:hover .download_item_span2{
        font-size: 12px !important;
    }
    .download_btn{
        display: none;
    }
    .notice{
        position: relative;
        right: -500px;
        bottom: 20px;
        color: #FFFFFFFF;
        font-size: 16px;
    }
  
}
@media only screen and (min-width: 1560px) {
    .container {
        width: 1560px;
    }
    .header{
        width: 1560px;

    }

    .title-content{
        position: relative;
        top: 120px;
    }
    .title{
        top: 115px;
        color: white;
        font-size: 40px;
        line-height: 71px;
        font-weight: bold;
    }
    .little-title{
        position: relative;
        top: 24px;
        color: white;
        font-size: 22px;
        line-height: 31px;
    }
    .first-containner-download{
        width: 1560px;
    }
    .first-containner-download .download{
        width: 800px;
    }
    .download_item{
        margin-top: 140px;
        height: 180px;
        width: 180px;
    }
    .download_item:hover .download_item_img2 {
        display: block;
        position: relative;
        width: 160px;
        height: 160px;
        background: white;
        border-radius: 12px;
        margin-top: 10px;
        margin-left: 10px;
    }
    .download_btn{
        display: none;
    }
    .notice{
        position: relative;
        right: -600px;
        bottom: 20px;
        color: #FFFFFFFF;
        font-size: 16px;
    }

}
@media only screen and (min-width: 1920px) {
    .container {
        width: 1920px;
      
    }
    .header{
        width: 1920px;
        padding: 0 180px;
    }
    .title-content{
        position: relative;
        top: 120px;
    }
    .title{
        color: white;
        font-size: 54px;
        line-height: 71px;
        font-weight: bold;
    }
    .little-title{
        position: relative;
        top: 24px;
        color: white;
        font-size: 24px;
        line-height: 31px;
    }
    .first-containner-download{
        height: 500px;
    }
    .first-containner-download .download{
        width: 700px;
    }
    .download_item{
        margin-top: 200px;
        height: 180px;
        width: 180px;
    }
    .download_item:hover .download_item_img2 {
        display: block;
        position: relative;
        width: 160px;
        height: 160px;
        background: white;
        border-radius: 8px;
        margin: 0 auto;
        margin-top: 10px;
        margin-left: 10px;
        
    }
    .download_btn{
        display: none;
    }
    .notice{
        position: relative;
        right: -700px;
        bottom: 20px;
        color: #FFFFFFFF;
        font-size: 16px;
    }
}