/*大屏幕*/
@media screen and (min-width: 768px) {

    .banner{width: 100%;padding-top: 90px;box-sizing: border-box;}
    .banner .ban{width: 100%;height: 500px;background-repeat: no-repeat;background-size: 100% 100%;}
    .banner .ban .juzhong{
        text-align: center;
    }
    .banner .ban div img{
        margin-top: 110px;
    }
    .banner .ban div p{
        margin-top: 30px;
        color: #ffffff;
        line-height: 28px;
    }
    .banner .ban .biaoti{
        font-size: 30px;
    }
    .banner .ban .neirong{
        font-size: 14px;
        width: 90%;
        margin: 0 auto;
    }
    .mk2{width: 100%;text-align: center;}
    .mk2 .content{width: 1312px;margin: 0 auto;}
    .mk2 .content .title01{width: 39%;margin-top: 60px;margin-bottom: 40px;}
    .mk2 .content .title02{width: 35%;margin-top: 60px;margin-bottom: 40px;}
    .mk2 .content .tab_box{border-bottom: 3px #ef7800 solid;width: 100%;}
    .mk2 .content .tab_box span{cursor: pointer;transition: all .3s; font-size: 28px;color: #343434;width: 10%;padding: 20px 10px;box-sizing: border-box; position: relative;text-align: center;}
    .mk2 .content .tab_box span::after{display: block;content: '';width: 100%;height: 9px;border-radius: 4px;position: absolute;bottom: -10px;left: 0; z-index: 99;}
    .mk2 .content .tab_box span.active::after{display: block;content: '';width: 100%;height: 9px;border-radius: 4px;background: #4c4c4c;position: absolute;bottom: -6px;left: 0; z-index: 99;}
    .mk2 .content .con_text{width: 100%;padding: 40px 0;box-sizing: border-box;}
    .mk2 .content .con_text .text_item{width: 40%;text-align: left;font-size: 18px;line-height: 30px;color: #343434;}
    .mk2 .hi-columns .jianjie{height: 600px;width: 98%;margin-top: 20px;margin-bottom: 60px;}
    .mk2 .hi-columns .jianjie .wenzijieshao{margin-top: 190px;margin-left: 650px;text-align: left;}
    .mk2 .hi-columns .jianjie .wenzijieshao span{font-size: 18px;font-weight: bold;color: #333333;line-height: 32px;}
    .about_c_img{margin-top: 20px;margin-bottom: 60px;}

    .contact{width: 100%;height: 154px;background: #ef7800;}
    .contact_content{width: 1213px;height: 100%; margin: 0 auto;}
    .contact_content p{padding-left: 20px;margin-bottom: 10px;}
    .contact_content .p1{font-size: 24px;font-weight: bold;color: #fff;text-align: left;}
    .contact_content .p2{font-size: 18px;color: #fff;}


}

@media screen and (max-width: 1312px){

    .mk2 .content{width: 100%;padding: 0 30px;box-sizing: border-box;}
    /*.mk2 .content .tab_box span{margin: 0 14px;}*/

}


@media screen and (max-width: 1290px){

   

}


/*小屏幕*/
@media screen and (max-width: 768px) {
 
    .banner {
        width: 100%;
        padding-top: 50px;
        box-sizing: border-box;
    }
    .banner .ban{width: 100%;height: 350px;background-repeat: no-repeat;background-size: 100% 100%;}

    .banner .ban .juzhong{
        text-align: center;
    }
    .banner .ban div img{
        margin-top: 20px;
        width: 35%;
    }
    .banner .ban div p{
        margin-top: 10px;
        color: #ffffff;
        line-height: 20px;
    }
    .banner .ban .biaoti{
        font-size: 20px;
    }
    .banner .ban .neirong{
        font-size: 12px;
        width: 98%;
        margin: 0 auto;
    }

    .mk2{width: 100%;text-align: center;}
    .mk2 .content{width: 100%;margin: 0 auto;}
    .mk2 .content .title01{width: 60%;margin-top: 40px;margin-bottom: 40px;}
    .mk2 .content .title02{width: 60%;margin-top: 40px;margin-bottom: 40px;}
    .mk2 .content .tab_box{border-bottom: 3px #ef7800 solid;width: 100%;overflow-x: auto;height: 60px;}
    .mk2 .content .tab_box span{cursor: pointer;transition: all .3s; font-size: 14px;color: #343434;margin:0 10px;padding: 10px 10px;box-sizing: border-box; position: relative;text-align: center;}
    .mk2 .content .tab_box span::after{display: block;content: '';width: 100%;height: 9px;border-radius: 4px;position: absolute;bottom: 0px;left: 0; z-index: 99;box-sizing: border-box; }
    .mk2 .content .tab_box span.active::after{display: block;content: '';width: 100%;height: 9px;border-radius: 4px;background: #4c4c4c;position: absolute;bottom: -6px;left: 0; z-index: 99;box-sizing: border-box; }
    .mk2 .content .con_text{width: 100%;padding: 40px 0;padding-bottom: 0; box-sizing: border-box;flex-direction: column !important;}
    .mk2 .content .con_text .text_item{width: 100%;text-align: left;font-size: 14px;line-height: 30px;color: #343434;margin-bottom: 30px;}
    .mk2 .content .con_text .text_item:nth-child(2){margin-bottom: 0;}

    .mk2 .hi-columns .jianjie{height: 180px;width: 98%;margin-bottom: 40px;}
    .mk2 .hi-columns .jianjie .wenzijieshao{margin-top: 20px;}
    .mk2 .hi-columns .jianjie .wenzijieshao span{font-size: 12px;font-weight: bold;color: #333333;}
    .about_c_img{margin-top: 20px;margin-bottom: 60px;width: 100%;}

    .contact{width: 100%;background: #ef7800;}
    .contact_content{width: 100%;height: 100%;padding: 10px 20px;box-sizing: border-box;}
    .contact_content img{width: 20px;}
    .contact_content p{padding-left: 10px;}
    .contact_content .p1{font-size: 14px;font-weight: bold;font-family: Arial, Helvetica, sans-serif; color: #fff;text-align: left;}
    .contact_content .p2{font-size: 12px;color: #fff;}



    

}