@media screen and (max-width:1200px){
    .canal,.feedback,.about,.advantage,.product,.love,.honor{margin-left: 0;margin-right:0;} 
}

@media screen and (max-width:768px){
    body{font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;}
    .header img{width:100%;}
    .about_info p{font-size:24px;line-height:46px;}
    .advantage .list li{width:50%;background:#fff;}
    .advantage .list li:nth-child(2){background: #dfe8e1;}
    .advantage .list li:nth-child(3){background: #dfe8e1;}
    .advantage .list li:nth-child(4){background: #fff;}
    .advantage .list li:nth-child(5){background: #fff;}
    .advantage .list li:nth-child(6){background: #dfe8e1;}
    .advantage .list li:nth-child(7){background: #dfe8e1;}
    .video_wrap{background:none;padding-top:2%;padding-bottom:0;}
    .goTop{width:50px;}
    .goTop a{margin-top:18%;}
}

@media screen and (max-width:480px){
    .container{padding:0 1.5%!important;}
    .title,.about .title,.advantage .title{padding-top:50px;background-size: 80%;}
    .video_tit{padding-top:50px;background-size: 48%;}
    .product .title{padding-top:50px;background-size: 74%;}
    .love .title{padding-top:50px;background-size: 40%;}
    .honor .title{padding-top:50px;background-size: 53%;}
    .title h2{font-size:26px;}
    .title p{font-size:14px;margin:0.8em 0;}
    .form .input_group{width:96.8%;float:none;}
    .form .tj_btn{margin:2% auto 0;display: block;}
    .about_info p{font-size:16px;line-height:32px;}
    .advantage .list li h3{font-size:22px;}
    .advantage .list li p{font-size:16px;}
    .advantage .list li span{transform: scale(.8);-webkit-transform: scale(.8);}
    .form .input_group input{line-height:36px;font-size:16px;height:36px;}
    .form .input_group textarea{line-height:36px;font-size:16px;height:108px;}
    .video_btn{width:50px;height:50px;margin-top:-25px;margin-left:-25px;}
    .about_imgs .fl,.about_imgs .fr{width:95%;float:none;margin:0 auto;}
    .about_imgs .fl{margin-bottom:3%;}
}
@media screen and (max-width:349px){
   
}
@media screen and (min-width:768px) and (max-width:770px){
    
}