/*html{
  min-height:100%;
}*/
/*body{
  padding-bottom:170px;
  min-height:850px;
  position:relative;
}*/
.page_footer{
  width:100%;
  position:absolute;
  left:0px;
  bottom:0px;
	padding:20px 0px;
	background:#3F3F3F;
	color:#fff;
  /*margin-top:50px;*/
  font-size:14px;

}
.page_footer a{
	color:#fff;
}
.footer_table{
	display:table;
}
.footer_l{
	display:table-cell;
	vertical-align: middle;
	width:35%;
}

.company_info{
	display:table-cell;
	vertical-align: top;
	padding-left:50px;
  font-size:13px;
}
.company_name{
	margin-bottom:26px;
	font-size:16px;
}
.service_num{
	display:table-cell;
	text-align:center;
	vertical-align: top;
}
.service_code{
	width:70px;
}
.service_num .txt{
	margin-top:10px;
}

.footer_r{
	display:table-cell;
	vertical-align: top;
	text-align:right;
	width:65%;
}
.footer_nav a{
	display:inline-block;
	line-height:30px;
	position:relative;
	padding:0px 10px;
}
.footer_nav a:after{
	content:'';
	width:1px;
	height:10px;
	position:absolute;
	top:50%;
	right:0px;
	margin-top:-5px;
	background:#fff;
}
.footer_nav a:last-of-type:after{
	display:none;
	content:'';
}
.copyright{
	margin-top:26px;
  font-size:13px;
}

/**/
.to_top{
  position:fixed;
  left:50%;
  bottom:170px;
  width:70px;
  height:65px;
  line-height:86px;
  display:none;
  overflow:hidden;
  background-image:url("images/to_top.png");
  background-repeat:no-repeat;
  background-position:center center;
  background-size:100% auto;
  text-align:center;
  font-size:17px;
  font-weight:bold;
  color:#333;
  cursor:pointer;
  margin-left:600px;
  transform: translateX(-50%);
  -ms-transform:translateX(-50%); 
  -moz-transform:translateX(-50%); 
  -webkit-transform:translateX(-50%);
  -o-transform:translateX(-50%);
}

/*响应式媒体查询*/
@media screen  and (max-width:1260px){
  .to_top{
    left:auto;
    right:0px;
    transform: translateX(0);
    -ms-transform:translateX(0); 
    -moz-transform:translateX(0); 
    -webkit-transform:translateX(0);
    -o-transform:translateX(0);
  }
}
@media screen  and (max-width:1000px){
  .w{
  	padding-left:10px;
  	padding-right:10px;
  }
  
}
@media screen  and (max-width:950px){
  
  /*导航*/
  .header_stay{
    height:140px;
  }
  .page_nav_w{
    padding:0px;
  }
  .brand_logo_stay{
    float:none;
  }
  .nav_list{
    margin:0px;
  }
  .item_children li{
    width:auto;
  }
  /*.nav_list li{
  	text-align:left;
  }*/
  
 /* .item_children{
  	width:120px;
    margin-left:-60px;
  }*/
  
  .item_children .item_children a{
    padding-left:35px;
  }
  .item_children .item_children .item_children a{
    padding-left:45px;
  }
  /**/
  /*.footer_nav{
  	display:none;
  }*/
  .copyright{
  	margin-top:80px;
  }

}
@media screen  and (max-width:768px){
 /* body{
    padding-bottom:250px;
  }*/
  
  .footer_l{
  	width:100%;
  	display:block;
  }
  .company_info{
  	float:left;
  	padding:0px;
  }
  .service_num{
  	float:right;
  }
  .footer_r{
  	width:100%;
  	display:block;
  	text-align:center;
  }
  .copyright{
  	margin-top:20px;
  }
  /*普凯资质*/
  .swiper_btn{
  	display:none;
  }
}
@media screen  and (max-width:600px){
  .header_stay{
    height:auto;
  }
  .brand_logo_stay{
    padding-right:50px;
  }
  .brand_logo{
    width:100%;
    display:block;
    text-align:left;
  }
  .brand_logo img{
    width:90%;
  }
  .nav_btn{
    display:block;
  }
  .nav_list_area{
    display:none;
  }
  .nav_list{
    height:auto;
  }
  .nav_list a{
    line-height:40px;
    height:40px;
    text-align:left;
  }
  .nav_item{
    width:100%;
    padding-left:10px;
    display:block;
    font-size:15px;
  }
  .item_children{
    width:100%;
    position:static;
    margin:0px;
  }
  .item_children li{
    width:100%;
  }
  .item_children a{
    padding-left:25px;
  }
  .nav_link_bg.active{
    display:none !important;
  }
  .dynamic_cont_link{
    padding-left:0px;
    padding-right:0px;
  }
  .dynamic_cont .link_time:after{
    content:"";
    display:none;
  }

  .products_list li{
    width:120px;
  }
  .products_list a{
    width:100px;
  }
}
@media screen  and (max-width:500px){
  .dust_type_tab{
    display:none;
  }
  .dust_type_view{
    display:block;
  }
  
  
}
@media screen  and (max-width:400px){

  .company_info{
  	display:block;
  	float:none;
  	width:100%;
  	text-align:center;

  }
  .company_name{
  	margin-bottom:10px;
  }
  .service_num{
  	margin-top:20px;
  	display:block;
  	float:none;
  	width:100%;
  }
}