@media (max-width: 1024px){
    .nav_ul li:hover{border:none;}
    .down-text li a{display: block;/*transform: translateX(100%);*/width:55%;margin: 0 auto;}
}

@media (max-width: 992px){
    .on:after{top:96%;}
    .navbar-collapse{padding-right: 0;padding-left: 0;}
    .nav_ul{margin-left: 0;}
    .header_logo{height:70px;}
    .header_logo img{height:100%;}
    .nav_ul li{line-height: 70px;padding: 0 10px;font-size: 16px;}
    .yuyan{line-height: 20px;margin-top: 24px;width:40px;}
    .swiper-slide .container{width:100%;padding-left: 0;padding-right: 0;}
    .banner_img img{margin-left: 0;}
    .ind_pic1, .ind_pic2, .ind_pic3{font-size: 16px;}
    .ind_pic2 p{font-size: 16px;}
    .footer_ul ul li a{padding-right: 15px;}
    .footer_ul ul{padding-left:15px; }
    .footer_bor{font-size: 15px;line-height: 25px;}
    .footer_p{line-height: 40px;}
    .product_hifi_left li a img{border-radius: 20px;}
    /*header footer end*/
    .banner_text1{position: absolute;top:17%;left:10%;color: #ffffff;}
    .banner_text1 h2{font-size: 30px;font-weight:bold;margin-bottom: 25px;}
    .banner_text1 p{font-size: 16px;opacity: 0.9;}
    .banner_text2{position: absolute;top:25%;left:10%;color: #ffffff;}
    .banner_text2 h2{font-size: 30px;font-weight:bold;margin-bottom: 30px;}
    .banner_text2 p{font-size: 15px;line-height: 30px;background: #f39800;text-align: center;opacity: 0.9;}
    .banner_text2 p:nth-child(2){width:100%;}
    .banner_text2 p:nth-child(3){width:100%;}
    .banner_text3{position: absolute;top:13%;left:9%;color: #ffffff;}
    .banner_text3 h2{font-size: 30px;font-weight:bold;margin-bottom: 25px;}
    .banner_text3 p{font-size: 16px;opacity: 0.9;}
    .banner_text4{position: absolute;top:4%;left: 8%;color: #ffffff;text-align: center;}
    .banner_text4 h2{font-size: 30px;font-weight: bold;}
    .banner_text4 p{margin: 14px 0;font-size: 20px;opacity: 0.9;}
    .banner_text5{position: absolute;top:18%;left:9%;color: #ffffff;}
    .banner_text5 h2{font-size: 30px;font-weight: bold;margin-bottom: 25px;}
    .banner_text5 p{font-size: 16px;opacity: 0.9;}
    .banner_text6{position: absolute;top:16%;left:15%;color: #ffffff;}
    .banner_text6 h2{font-size: 30px;font-weight: bold;margin-bottom: 40px;}
    .banner_text6 p{font-size: 16px;opacity: 0.9;}
    /*index end*/
    .product_ul li a{font-size: 15px;}
    .product_hifi_right div h2{font-size: 20px;}
    .product_hifi_right div h3{font-size: 17px;}
    .product_hifi_right div p{font-size: 16px;}
    .product_hifi_right,.product_hifi_left{height:auto;}
    .product_hifi_left li a div{font-size: 16px;line-height: 1.5;}
    .product_hifi_left li a span{top:66%;}
    .product_hifi_box{margin-bottom: 85px;}
    /*product_hifi end*/
    .product_ul2 li p{margin-bottom: 30px;}
    .product_ul2 li a img{margin: 55px 0 35px 0;}
    /*product_list end*/
    .news-detail-text>h3{font-size: 20px;}


}


@media (max-width: 767px){


    button,.navbar-toggle{border:none;}
    .navbar-default .navbar-toggle:focus, .navbar-default .navbar-toggle:hover{background: none;}
    header{position: fixed;z-index: 111111;width:100%;}
    .nav_ul{height: -webkit-calc(100vh - 60px);height: -moz-calc(100vh - 60px);text-align: center;padding-left: 0;padding-top: 10px;width: 100%;}
    .nav_ul li:hover{border:none;}
    .banner_img{padding-top: 61px;}
    .navbar-toggle{padding: 7px 7px;margin-top: 16px;}
    .navbar-toggle .icon-bar{width: 20px;}
    .nav_ul li{width:100%;line-height: 50px;padding: 0}
    .navbar-default .navbar-collapse, .navbar-default .navbar-form{border-color: #6c6c6c;}
    .nav_ul li a{border-bottom: 1px dashed rgba(205, 205, 205, 0.2);}
    .yuyan{margin-top: -39px;margin-right: 55px;width:30px;line-height: 18px;}
    .ind_pic1, .ind_pic2, .ind_pic3{width:100%;font-size: 14px;}
    .ind_top{margin-top: 10px;margin-bottom: 10px;}
    .top_pic{margin-top: 2%;}
    .ind_pic2{margin: 2% 0;}
    .ind_pic2 p{font-size: 14px;}
    .icon_jt{width:30px;}
    .footer_ul{display: none;}
    .footer_right{width:100%;}
    .weixin_icon, .weibo_icon{margin-top: 50px;float: right!important;}
    .footer_p{line-height: 25px;font-size: 12px;}
    .footer_right_text,.footer_right_p{font-size: 12px;}
    .footer_bor{font-size: 13px;}
    .banner_img img{height:auto;}
    .ind_pic1, .ind_pic2{margin-right: 0;}
    .product_hifi_left li a img{border-radius: 10px;}
    .footer_right_email span img{width: 15%;}
    .footer_right_p span img{width: 90%;}
    /*header footer end*/
    .banner_text1{position: absolute;top:17%;left:6%;color: #ffffff;}
    .banner_text1 h2{font-size: 16px;font-weight:bold;margin-bottom: 5px;margin-top: 5px;}
    .banner_text1 p{font-size: 13px;opacity: 0.9;margin-bottom: 5px;}
    .banner_text2{position: absolute;top:20%;left:6%;color: #ffffff;}
    .banner_text2 h2{font-size: 16px;font-weight:bold;margin-bottom: 5px;margin-top: 5px;}
    .banner_text2 p{font-size: 13px;line-height: 20px;background: #f39800;text-align: center;opacity: 0.9;}
    .banner_text2 p:nth-child(2){width:100%;margin: 5px 0}
    .banner_text2 p:nth-child(3){width:100%;}
    .banner_text3{position: absolute;top:13%;left:9%;color: #ffffff;}
    .banner_text3 h2{font-size: 16px;font-weight:bold;margin-bottom: 5px;margin-top: 5px;}
    .banner_text3 p{font-size: 13px;opacity: 0.9;margin-bottom: 5px;}
    .banner_text4{position: absolute;top:10%;left: 6%;color: #ffffff;text-align: center;}
    .banner_text4 h2{font-size: 16px;font-weight: bold;}
    .banner_text4 p{margin: 2px 0;font-size: 13px;opacity: 0.9;}
    .banner_text5{position: absolute;top:16%;left:6%;color: #ffffff;}
    .banner_text5 h2{font-size: 16px;font-weight: bold;margin-bottom: 5px;margin-top: 5px;}
    .banner_text5 p{font-size: 13px;opacity: 0.9;margin-bottom: 5px;}
    .banner_text6{position: absolute;top:16%;left:10%;color: #ffffff;}
    .banner_text6 h2{font-size: 16px;font-weight: bold;margin-bottom: 5px;margin-top: 5px;}
    .banner_text6 p{font-size: 13px;opacity: 0.9;margin-bottom:5px;}

    .product_ul li{width:32.33333%;border: 1px solid #cccccc;margin: 0.5% 0.5%;border-radius: 5px;}
    .product_ul li div{height:25px;margin: 5px auto;}
    .product_ul li p{margin: 0 0 5px;}
    .product_ul{margin-top: 10px;border-bottom: none;}
    .product_ul li a{font-size: 14px;}
    .product_ul2 li{width:49%;margin: 0.5% 0.5%;border-radius: 5px;}
    .product_ul2 li p{font-size: 14px;margin-bottom: 10px;}
    .product_ul2 li a img{margin: 10px 0 10px 0;}
    .product_ul2 li a{width:93%;}

    .product_hifi_right,.product_hifi_left{width:100%;margin: 10px 0;/*height:inherit;overflow: inherit;*/}
    .product_hifi_box{margin-top: 10px;margin-bottom: 15px;}
    .product_hifi_left li a div{font-size: 13px;}
    .product_hifi_left li a span{width:26px;height:27px;}
    .product_hifi_right div h2{font-size: 15px;padding-bottom: 5px;}
    .product_hifi_right div h3{font-size: 15px;padding: 5px 0;line-height: 25px;}
    .product_hifi_right div p{padding-bottom: 15px;font-size: 13px;margin-top: 20px;}
    .product_hifi_left ul{padding-right: inherit;}

    .down-text>p{font-size: 14px;margin: 10px 0;padding: 5px 10px;}
    .down-text-right{padding-left: 5px;}
    .down-text-left{width:22%;float:left!important}
    .down-text-left img{width: 100%;}
    .down-text li a{width:90%;}
    .down-text-right p:first-child{font-size: 12px;}

    /*hifi*/
    .case_tedian li p:first-child{font-size: 13px;}
    .case_tedian li p:last-child{font-size: 12px;}
    .case_tedian li{padding: 10px 0;height:7em;width:50%;}
    .case_guige table tr th{font-size: 13px;padding-top: 15px;}
    .case_guige table tr td{font-size: 12px;}
    .product-top{margin-bottom: 15px;}
    .nav-tabs>li>a{padding: 5px 8px;}
    .product_case_nav .nav-tabs li{font-size: 14px;}
    .case_gonneng li div{height:25px;}
    .case_gonneng li h4{font-size: 13px;}
    .case_gonneng li p{height:7em;line-height: 20px;font-size: 12px;}
    .case_gonneng li{padding: 15px 0;width:50%;}
    .product_case_box .case_text_left{width:100%;padding: 0 0 ;}
    .product_case_box .case_text_right{width:100%;padding: 0 0;}
    .product_case_box{margin: 15px 0;padding:1em 0.5em;}
    .product_case_box .case_text_left p{font-size: 16px;margin: 0 0 5px;}
    .product_case_box .case_text_right p{font-size: 14px;line-height: 22px;}


    /*contact*/
    .contact-text{width:25%;padding: 5px 0;font-size: 16px;margin-top: 15px;}
    .contact-top{margin: 20px auto;}
    .contact-left{width:100%;}
    .contact-left h3{font-size: 15px;margin: 0 0 10px;}
    .contact-left p{font-size: 14px;margin: 0 0 5px;}
    .contact-right{width:100%;margin: 15px 0 0;}


    .header_logo{height:60px;}
    .div-p span{font-size: 12px;padding: 3px 0;}
    .div-p{margin-bottom: 10px;}
    .product_hifi_right div ul li{width: 100%;font-size: 14px;margin-bottom: 5px;padding: 0 0;}
    .product_hifi_right div{padding: 10px 0;}
    .product_hifi_left li{width: 100%;}
    .product_hifi_left{height: 245px;}
    .about-text h4{font-size: 14px;line-height: 24px;margin-top: 20px;}
    .about-text p{font-size: 13px;line-height: 24px;}
    .about-nav li a{font-size: 14px;}
    .about-nav li{width: 20%;}
    .about-nav li a>p>icon img{width: 40%;}
    .about-nav li a>p{margin:0 0 5px;}
    .about-nav li a>p:first-of-type{height: 30px;}
    .about-text .div-li>p{font-size: 14px;line-height: 35px;margin-bottom: 10px;}
    .about-text .div-li .div-left,.about-text .div-li .div-right{width: 100%;}
    .about-text .div-li .div-left p{font-size: 13px;line-height: 24px;}
    .about-text .div-li .div-left{margin-top: 5px;}
    .shouhou>h4{font-size: 14px;line-height: 24px;margin-top: 10px;}
    .shouhou>p{font-size: 13px;line-height: 24px;padding: 5px 10px;margin-bottom: 3px;}
    .xiazai>ul li{padding: 5px 5px;}
    .xiazai>ul li a p{padding-left: 0;display: block;font-size: 13px;margin-top: 5px;}
    .xiazai>ul li a icon{display: block}
    .xiazai>ul li a icon img{width: 30%;}
    .xiazai>h4{margin: 10px 0;}
    .news-list>ul li .news-list-text{padding-left: 0;width: 100%;float: left}
    .news-list>ul li .news-list-img{width: 100%;}
    .news-list>ul li{padding: 5px;}
    .news-list>ul li .news-list-text h4{font-size: 14px;line-height: 24px;padding-right: 0;margin: 5px 0}
    .news-list>ul li .news-list-text span{font-size: 13px;}
    .news-list>ul li .news-list-text p{font-size: 13px;height: 40px;padding-right: 0;}
    .news-list>ul li .butt button{font-size: 13px;}
    .newss-nav li a{font-size: 14px;line-height: 24px;}
    .pagination{margin: 10px 0}
    .pagination>li>a, .pagination>li>span{font-size: 13px;padding: 4px 10px;}
    .news-detail-text>h3{font-size: 15px;margin-top: 30px;}
    .news-detail-text>span{font-size: 13px;margin: 10px 0;}
    .news-detail-text>p{font-size: 13px;line-height: 24px;padding-top: 5px;margin-bottom: 3px;}
    .news-detail-text>div{margin: 20px 0 15px 0}
    .news-detail{margin: 25px auto 15px;}
    .news-detail-text>div p a{font-size: 13px;}
    .news-kj-list>ul>li a p{font-size: 14px;}
    .news-kj-list>ul>li a{padding: 10px 0;}
    .news-kj-list>ul>li{margin-top: 10px;}
    .news-kj{margin-bottom: 20px;}
}