html {
  font-size: 62.5%;
  background: #fff;
}
.wrap {
  width: 90%;
  margin: 0 auto;
  max-width: 1200px;
}
img {
  max-width: 100%;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family:'Poppins-Regular' ;
}
a{
  text-decoration: none;
}
:root {
  --global-color: #113fd5;
  --global-color666: #666;
}
@font-face {
  font-family:'Poppins-Bold' ;
  src: url(../fonts/poppins-bold.ttf);
}
@font-face {
  font-family:'Poppins-Regular' ;
  src: url(../fonts/poppins-regular.ttf);
}
.foot{
  color: #231f1f;
}
.foot_line{
  background: #ddd;
  height: 1px;
  width: 100%;
  margin:30px 0
}
.foot_media_box{
  margin: 0 auto;
  display: flex;
  justify-content: center;
}
.foot_media_box .item{
  margin: 0 5px;
  color: #231f1f;
  text-decoration: none;
}
.foot_media_box .item .iconfont{
  font-size: 22px;
  color: #556677;
}
.foot_menu{
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 20px;
}
.foot_menu .item{
  margin: 0 5px;
  color: #231f1f;
  text-decoration: none;
}
.foot_menu .line{
  height: 10px;
  background: #231f1f;
  width: 1px;
  margin: 0 5px;
}
 .copyright{
  text-align: center;
  margin: 15px 0 30px;
  text-align: center;
}
.head{
  background: #000;
  color: #fff;
}
.pc_nav .item{
  text-decoration: none;
  color: #fff;
  font-size: 14px;
  margin: 0 15px;
  font-family: 'Poppins-Bold';
}
.head .search_icon .iconfont{
  font-size: 20px;
}
 .mobile_nav{
  display: none;
  margin: 15px 0;
}
 .mobile_nav .item{
  text-decoration: none;
  color: #000;
  font-size: 14px;
  margin: 0 15px;
  font-family: 'Poppins-Bold';
}
.search_mask{
  display: none;
  position: fixed;
  z-index: 2000;
  width: 50vw;
  left: 25vw;
  top: 30vh;
  background: #fff;
  padding: 20px;
  border-radius: 5px;
}
.search_mask form{
  display: flex;
  align-items: flex-start;
}
.search_mask .input_box{
  flex: 1;
}
.search_mask .input{
  border: 1px solid #ddd;
  padding: 5px;
  border-radius: 5px;
  
}
.search_mask .btn{
  background: none;
  border: none;
  outline: none;
}
.search_mask .btn:focus{
  outline: none;
  border: none;
}
.search_mask .btn .iconfont{
  font-size: 20px;
}
.mask{
  background: rgba(0, 0, 0, .6);
  position: fixed;
  width: 100%;
  height: 100vh;
  z-index: 1000;
  display: none;
  top: 0;
}
.nbanner{
  height: 250px;
  background-position: center!important;
 display: flex;
 align-items: center;
}

.public_cate_name{
  font-size: 30px;
  font-family:'Poppins-Bold' ;
}
.contact_box .item{
  display: flex;
  align-items: center;
  margin: 10px 0;
  font-size: 14px;
}
.contact_box .item .iconfont{
  margin-right: 5px;
}
.contact_box .item .item2{
  width: 50%;
  display: flex;
  align-items: center;
}
.contact_box .item .icon-weixin{
  font-size: 20px;
}

.contact_form .item{
  margin: 10px 0;
}
.contact_form .item .form-control{
  padding: 10px;
}
.contact_form .btn_box{
  display: flex;
  justify-content: center;
}
.contact_form .btn_box .btn{
  background: #556677;
  font-family:'Poppins-Bold' ;
  font-size: 14px;
  border-radius: 0;
  color: #fff;
  padding: 10px 25px 7px;
}
.about_content{
  font-size: 14px;
  line-height: 30px;
}
.about_tuijian{
  border-top: 1px solid #ddd;
}
.about_tuijian .item{
  padding: 10px;
  text-decoration: none;
  text-align: center;
}
.about_tuijian .text{
  margin-top: 10px;
  text-align: center;
  font-size: 14px;
  color: #000;
  text-decoration: none;
}
.product_banner{
  height: 350px;
}
.product_banner_title{
  font-size: 22px;
  font-family:'Poppins-Bold' ;
}
.product_banner_text{
  font-size: 15px;
  color: #666;
}
.product_cate{
  height: 300px;
  display: flex;
  align-items: center;
}
.product_cate1{
  background: url(../images/cate1.jpg) center;
  background-size: cover;
}
.product_cate2{
  background: url(../images/cate2.jpg) center;
  background-size: cover;
}
.product_cate3{
  background: url(../images/cate3.jpg) center;
  background-size: cover;
}
.product_cate .content_box{
  width: 100%;
  text-align: center;
}
.product_cate .content_box .title{
  color: #000;
  font-size: 24px;
}
.product_cate .content_box .btn{
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  color: #fff;
  width: 180px;
  margin: 0 auto;
  border-radius: 0;
  padding: 5px 0;
}
.product_cate .content_box .btn .text{
  font-size: 14px;
  margin-right: 5px;
}
.product_cate .content_box .btn .iconfont{
  font-size: 20px;
}

.product_list_catename{
  font-size: 22px;
  padding: 15px 0;
  border-bottom: 1px solid #ddd;
}
.product_list_item{
  text-decoration: none;
  color: #000;
  margin-bottom: 20px;
}
.product_list_item .set_box{
  display: flex;
  align-items: center;
  justify-content: center;
}
.product_list_item .thumb{
  padding: 10px;
  border: 1px solid #ddd;
  margin-bottom: 15px;
}
.product_list_item .set_box .item{
  margin: 0 10px;
  display: flex;
  align-items: center;
}
.product_list_item .set_box .item .text{
  margin-left: 5px;
}
.product_list_item .title{
  width: 100%;
  text-align: center;
  font-size: 16px;
  margin-top: 10px;
}

.product_list_item .color_box{
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.product_list_item .color_box .color_item{
  width: 15px;
  height: 15px;
  border-radius: 50%;
  margin: 0 5px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product_list_item .color_box .color_item .circle{
  background: #f00;
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.product_list_left{
  position: sticky;
  top: 0;
}
.product_list_left .title{
  font-size: 22px;
  padding: 15px 0;
  border-bottom: 1px solid #ddd;
  margin-bottom: 10px;
}
.product_list_left .item{
  text-decoration: none;
    color: #000;
    width: 100%;
    display: inline-block;
    margin: 10px 0px;
    font-size: 14px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 5px;
}
.product_list_left .item_current{
  color: #fd6733;
}
.position_box{
  margin-top: 15px;
  font-size: 12px;
}
.position_box a{
  text-decoration: none;
  color: #000;
}
.product_detail2 .title{
  font-family:'Poppins-Bold' ;
  font-size: 20px;
}
.product_detail2 .text{
  font-size: 14px;
}
.product_detail2 .set_box{
  display: flex;
  align-items: center;

}
.product_detail2 .set_box .item{
  display: flex;
  align-items: center;
  margin-right: 10px;
}
.product_detail2 .set_box .item .text{
  font-size: 12px;
}
.product_detail2 .set_box .item .img{
  margin-right: 5px;
}
.product_detail2 .color_box{
  border-bottom: 1px solid #ddd;
  border-top: 1px solid #ddd;
  padding: 10px 0;
  display: flex;
  align-items: center;
}
.product_detail2 .color_box .small_listt{
  display: flex;
  align-items: center;
}
.product_detail2 .color_box .color_item {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  margin: 0 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.product_detail2 .color_box .color_item  .circle {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.product_detail2 .color_box .t{
  color: #000;
  font-size: 16px;
  
}
.product_detail2 .btn_box{
  background: #000;
 padding: 7px 20px;
 display: inline-block;
 text-decoration: none;
}
.product_detail2 .btn_box .b{
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
}
.product_detail2 .btn_box .iconfont{
  margin-left: 5px;
  font-size: 22px;
}
.product_detail3 .title{
  background: #f2f2f2;
  border-left: 4px solid #000;
  padding: 15px;
  font-size: 14px;
  font-weight: bold;
}
.pagination{
  justify-content: center;
  margin: 30px 0;
}
.pagination li{
  margin: 0 10px;
  font-size: 14px;
  
}
.pagination li a{
  text-decoration: none;
  color: #000;
}
/* 平板电脑和小屏电脑之间的分辨率 */

@media (max-width: 979px) {
 
}

/* 横向放置的手机和竖向放置的平板之间的分辨率 */

@media (max-width: 767px) {
  
  .pc_nav{
    display: none;
  }
  .mobile_nav{
    display: flex;
  }
}
@media (max-width: 600px) {
 
}
/* 横向放置的手机及分辨率更小的设备 */

@media (max-width: 480px) {
  .search_mask{
    width: 80vw;
    left: 10vw;
  }
  .contact_box .item{
    flex-wrap: wrap;
  }
  .contact_box .item .item2{
    width: 100%;
    margin: 5px 0;
  }
  .contact_box .item .text{
    flex: 1;
  }
  .contact_banner{
    
    background-position: right!important;
  }
  .nbanner{
    height: 200px;
  }
  .logo{
    max-width: 30%;
  }
  .mobile_nav .item{
    margin: 0 10px;
  }
  .product_banner_text{
    display: none;
  }
  .product_banner_title{
    font-size: 18px;
  }
  .product_cate{
    height: 200px;
  }
  .product_cate .content_box .btn{
    width: 170px;
  }
  
}

@media (max-width: 420px){
.product_cate {
    height: 185px;
}
.product_cate .content_box .title{
  font-size: 20px;
}
.product_cate .content_box .btn {
  width: 160px;
}
}