@media only screen and (max-width: 1840px){
    /* .header .top{padding: 30px 0;} */
    .header .top .top_con{width: 90%;}
    .header .header-nav{width: 100%;margin: 0px auto;}
}

@media only screen and (max-width: 1500px) {
    .main .main-container{width: 90%;}
    .main-con1 .con1-left{width: 66%;height: auto;}
    .slideBox1{height: auto;} 
    .main-con1 .con1-left .con1-left-bd .con1-list ul li a{width: 80%;}
    .main-con1 .con1-right{width: 33%;}
    .main-con1 .con1-right .con1-right-bd ul li a{width: 80%;}
    .hf img{width: 100%;}
    .main-container .main-con2 .c2_01, .main-container .main-con2 .c2_02{margin-right: 15px;}
    .bd-list{width: 100%;}
    .bd-list ul li a{width: 80%;}

    .main-container .main-con3 .bd_select>ul>li{width: 24.25%;margin-right: 1%;}
    .select_ul{width: 100%;}
    .main-container .main-con3 .select_ul li{width: 100%;padding: 0 10px;}

}

@media only screen and (max-width: 1163px){
    .main_body,.main_win,.article_left_content,.content_title,.article_center_content,.ty-intro-box .ty-intro,.con_left,.ty-intro-box,.content_title .articlecontent .info,.content_title .articlecontent h3{width: 100%;}
    .article_main_arr{width: unset;height: unset;}
    .header .top .top_con .logo{width: 55%;}
    .search{width: 40%;}
    .search .search-input{width: 90%;}
    .logo img{width: 100%;}
    .search{width: 40%;}
    .header .header-nav>ul>li>a{font-size: 16px;}
}

@media only screen and (max-width: 1080px) {
    .header-nav{overflow-x: scroll;
        overflow-y: hidden;}
    .header .header-nav>ul>li>a{font-size: 16px;}

    .main-con1 .con1-left{width: 100%;margin-bottom: 20px;}
    .main-con1 .con1-right{width: 100%;margin-bottom: 20px;}
    .main-con1 .con1-right .con1-right-bd ul li a{width: 90%;}

    .main-container .main-con2{height: 1270px;}
    .main-container .main-con2 .c2_01, .main-container .main-con2 .c2_02 ,.main-container .main-con2 .c2_03{width: 100%;margin-bottom: 20px;}
}

@media only screen and (max-width: 940px){
    .header .header-nav{overflow-x: scroll;overflow-y: hidden;}
    .header .header-nav>ul{width: 1000px;}
}

@media only screen and (max-width: 690px){
    .header{height: auto;}
    .header .top{height: 220px;}
    .header .top .top_con .logo{width:100%;margin-bottom: 20px;}
    .search{width: 90%;margin: 0 auto;float: none;}
    .header .header-nav{height: auto;}
    .header .header-nav>ul{width: 100%;}
    .header .header-nav>ul>li{width: 25%;height: 40px;line-height: 40px;}
    .main-banner{display: none  ;}
    .main-container{margin-top: 30px;}
    .footer{height: 200px;}
    .footer p{height:60px;line-height:30px;text-overflow: ellipsis;display: -webkit-box;-webkit-line-clamp: 2;-webkit-box-orient: vertical;}
    .main-container .main-con3 .bd{height: 160px;}
    .main-container .main-con3 .bd_select>ul>li{width: 49%;margin-bottom: 10px;}  

    .header_con{background: none;}
}

@media only screen and (max-width: 640px){
    .article_left_content{display: none;}
    .main_body{min-height: 100vh;margin-top: 10vh;}
    
    .main{margin-top: 10vh;}
    ::-webkit-input-placeholder { 
        /* WebKit browsers，webkit内核浏览器 */
        color: #fff; 
        font-size: 14px;
        font-weight: 400;
        } 
        :-moz-placeholder { 
        /* Mozilla Firefox 4 to 18 */ 
        color: #fff; 
        font-size: 14px;
        font-weight: 400;
        } 
        ::-moz-placeholder { 
        /* Mozilla Firefox 19+ */ 
        color: #fff; 
        font-size: 14px;
        font-weight: 400;
        } 
        :-ms-input-placeholder { 
        /* Internet Explorer 10+ */ 
        color: #fff; 
        font-size: 14px;
        font-weight: 400;
        }
    .slideBox1 ,.main-con1 .con1-left .con1-left-bd .con1-list{width: 100%;}
    .main-con1 .con1-right .con1-right-bd ul li a{width: 85%;}
    .footer {
        padding: 35px 20px;
    }    
    ul#nav {
        width: 100%;

        display: none;
    }
    .header1{
        transition: all 0.3s;
        position: fixed;
        z-index: 999;
        top: 0px;
        width: 100vw;
        right: -101vw;
        height: 100vh;
        background-color: #0973bd;
    }
    .header2{right: 0;}
    .header .header-nav{overflow-x:hidden ;}
    .header1 ul#nav{display: block;}
    .header1 #nav>li{width: 80%;line-height: 50px;font-size: 16px;color: #fff;text-align: left;text-indent: 2em;border-bottom:1px solid #0460a0 ;margin: 0px 10%;height: 50px;}
    .nav_ol li:hover, #nav>.on{background-color: unset;}
    .header1 .top{padding: unset;}
    .header1 .top .top_con{width: 100%;}
    .header1 .search{width: 80%;margin-top: 8vh;}
    .header1 .top{padding: 0px;}
    .header .top .top_con .logo{display: none;}
    .header_btn{display: block;padding: 0px 20px 0px 10px; background-color: #0973bd;line-height: 8vh;position: fixed;right: 0px;top: 0px;z-index: 9999;box-shadow: 0px 2px 1px #045fa080;height: 8vh;}
    .header_btn img{width: 64%;height: auto;margin-top: 15px;}
    .header_btn .btn{background-image: url(2023scxy_list.png);background-color: unset; background-repeat: no-repeat;background-size: 26px;width: 26px;height: 8vh;display: block;float: right;background-position: center;}
    .header_btn .btn1{background-image: url(2023scxy_close.png);}
    .header .top{background: unset;}
    .search .search-submit{background: rgba(255,255,255,0.8) url(search_btn.png) no-repeat left 5px center;}
    .nav_ol{opacity: 0;}
    .main-con1 .con1-left .con1-left-bd .con1-list{height: auto;}
    .slideBox1 .bd img{height: 240px;}
    .main-con1 .con1-left .con1-left-bd .con1-list{margin-top: 20px;}
}   
@media only screen and (max-width: 520px){
    .header .top{height: 180px;padding: 20px 0;}
}
@media only screen and (max-width: 420px){
    .header .top{height: 160px;}
}

@media only screen and (max-width: 320px){
    .header .header-nav>ul>li>a{font-size: 15px;}
    .main-con1 .con1-right .con1-right-bd ul li a {width: 80%;}
    .main-container .main-con3 .bd_select>ul>li span{font-size: 12px;}
}