@media only screen and (max-width: 1680px) {
  .content {
    width: 1200px;
  }


  /* 首页 */
  .nav li{
    margin-left: 70px;
  }
  .about_left{
    width: calc(100% - 500px);
    padding-right: 105px;
  }
  .about_list i{
    right: -30%;
  }
  .about_list li:nth-child(3) i{
    right: -50%;
  }
  .about_pic{
    width: 500px;
    height: 380px;
  }
  .pro_left{
    width: 600px;
  }
  .pro_right{
    left: 714px;
  }
  .ind_list{
    height: 265px;
  }
  .ind_list_txt{
    top: 30px;
  }
  .ind_list_more{
    bottom: 30px;
  }
  .foot_tl{
    width: 30%;
  }
  .f_con li{
    float: none;
    width: 100% !important;
    margin: 0 0 16px !important;
  }


  /* 产品体系 */
  .product_pic{
    height: 320px;
  }
  .product_con{
    top: 80px;
  }


  /* 华北区域布局 */
  .white{
    padding: 50px 40px 12px;
  }
  .branch ul{
    margin-right: -2%;
  }
  .branch li{
    width: 31.33%;
    height: 280px;
    margin: 0 2% 50px 0;
    padding: 28px 30px 10px;
  }


  /* 关于集团 */
  .deve{
    width: 1200px;
  }
  .deve_line{
    margin: 18px 0 0 12px;
  }
  .deve_right{
    width: calc(100% - 13px);
  }
  .honor_left{
    width: 500px;
  }
  .honor_right{
    width: 680px;
  }
  .honor_right .swiper-button-next, .honor_right .swiper-button-prev{
    top: 40%;
    transform: translateY(-40%);
  }
  .honor_list{
    width: 628px;
    height: 552px;
  }
  .honor_list .swiper-slide{
    height: 205px;
  }
  .honor{
    height: 205px;
  }
  .honor_pic{
    width: 200px;
    height: 134px;
  }
  .factory_pic{
    height: 510px;
  }
  .factory_con{
    width: 90%;
    top: 535px;
	  left: 20px;
  }
  .factory .swiper-slide:hover .factory_con{
    top: 140px;
  }
  .news_pic{
    height: 230px;
  }
  .news_con{
    width: 94%;
  }

  .yzm1{
    width: 83%;
  }
}