/*pc端*/
 @media (min-width:980px){  
    /* 大屏幕 */
  .about-u-m{display:none;}
  .parts_top_img1-1{display:none;}
  .fr{float: right;}
  .fl{float: left;}
  .ment_top_title{width: 100%;height:652px;background: url('../images/parts1.jpg') no-repeat rgb(247,243,247);  }
  .ment_top_tit{text-align:center;width: 1300px;height: 527px;padding-top: 125px;margin:0px auto;position: relative;}
  .ment_top_title_l{width: 463px;height: 278px;padding: 129px 0px 0px 38px;background: rgba(247,247,247,.8)}
  .ment_top_title_l p{height: 59px;line-height: 59px;color:#000;font-size: 36px;margin:0px 0px 13px 0px;text-align: left;}
  .ment_top_title_l span{color:#000;font-size: 20px;line-height: 28px;text-align: left;display: inline-block;width: 100%;}
  .parts_top1{width: 1300px;height: 285px;margin:0px auto;padding-top: 107px;}
  .parts_top_title1{width:805px;height: 150px;margin-right: 19px; }
  .parts_top_title1 p{color:#000;font-size: 30px;line-height: 38px;margin-bottom: 33px;}
  .parts_top_title1 span{display: inline-block;width: 100%;height: 79px;color:#656565;font-size: 14px;line-height: 26px;}
  .parts_top2{width: 100%;height: 202px;background: #f00;}
  .parts_top_title2{width: 1300px;height: 202px;margin:0px auto;position: relative;}
  .parts_top_img1{width: 274px;height: 395px;position: relative;left:120px;}
  .parts_top_img2{width: 576px;height: 414px;position:relative;right:19px;top:101px;}
  .parts_top3{width: 1300px;height: 235px;padding-top: 78px;margin:0px auto;}
  .parts_top_title3{width: 612px;height: 235px;padding-left: 45px;}
  .parts_top_title3 p{text-align: right;color:#000;font-size: 30px;line-height: 38px;margin-bottom: 32px;}
  .parts_top_title3 span{display: block;width: 100%;height: 79px;color:#656565;font-size: 14px;text-align: left;}
  .parts_nav{display: block;width: 1300px;overflow: hidden;padding:6px 0px 0px;margin:0px auto 98px;}
  .parts_nav li{width: 100%;height: 402px;padding-top: 79px;}
  .parts_nav1{width: 600px;height: 400px;}
  .parts_nav1 img{max-width: 100%;max-height: 100%;}
  .parts_nav2{width: 600px;height: 255px;padding: 147px 20px 0px 0px;}
  .parts_nav2 p{line-height: 27px;margin-bottom: 35px;color:#000;font-size:18px;font-weight: bold;}
  .parts_nav_div{width: 104%;overflow: hidden;}
  .parts_nav_span1{display: block;float: left;width: 71px;color:#333;}
  .parts_nav_span2{display: block;float: left;width: 450px;color:#656565;}
  .parts_nav2 span{margin: 0px;font-size: 14px;line-height: 29px;}
  .parts_nav_span3{display: block;width:543px; }
}
/*手机端*/
 @media screen and (max-width:980px){
  .ment_top_title{display:none;}
  .parts_top_img1{display:none;} 
  .about-u-m{width:100%;position:relative;}
  .about-u-m img{width:100%;}
  .about-u-m .about_top_nav_l{position:absolute;top:20px;left:20px;width: 200px;height:150px;background: rgba(255,255,255,.7);padding:40px 20px;overflow: hidden;}
  .about-u-m .about_top_nav_l p{width: 100%;margin:0px 0px 5px 0px;color:#000;font-size: 24px;}
  .about-u-m .about_top_nav_l span{width: 100%;color:#000;font-size: 14px;line-height: 20px;} 	  
  .parts_top1{height:100%;overflow:hidden;padding: 15px;border-bottom:#eee 5px solid ;}
  .parts_top_title1{width:100%; }
  .parts_top_title1 p{color:#000;font-size: 20px;line-height: 38px;text-align:center;}
  .parts_top_title1 span{display: inline-block;width: 100%;color:#656565;font-size: 14px;line-height: 26px;}    
  .parts_top_img1-1{width: 100%;} 
  .parts_top_img1-1 img{width:100%;}   
  .parts_top2{height:100%;overflow:hidden;padding: 15px;}
  .parts_top_img2{width: 100%;}
  .parts_top_img2 img{width:100%;} 
  .parts_top3{height:100%;overflow:hidden;padding: 15px;border-bottom:#eee 5px solid ;}
  .parts_top_title3{width:100%; }
  .parts_top_title3 p{text-align:center;color:#000;font-size: 20px;line-height: 38px;}
  .parts_top_title3 span{display: block;width: 100%;color:#656565;font-size: 14px;text-align: left;line-height: 26px;}
  .parts_nav{display: block;height:100%;overflow:hidden;padding:15px;}
  .parts_nav li{width: 100%;}
  .parts_nav1{width:100%;} 
  .parts_nav1 img{width:100%;}
  .parts_nav2{width: 100%;padding-bottom:20px;}
  .parts_nav2 p{padding:15px 0;text-align:center;color:#000;font-size:20px;font-weight: bold;} 
  .parts_nav_div{width: 100%;overflow: hidden;font-size:14px;}
  
  .parts_nav_span1{display: block;float: left;width: 80px;color:#000 !important;}
  .parts_nav_span2{display: block;float: left;width: 100%;}
  .parts_nav2 span{margin: 0px;color:#656565;font-size: 14px;line-height: 29px;}
  .parts_nav_span3{display: block; }  
  
 }