/* 产品中心,解决方案下拉 */
header .nav-box .new-product {
  background-color: #f5f5f5;
}
header .nav-box .product-bg {
  max-width: 1440px;
  /* height: 750px; */
  margin: 0 auto;
  overflow: hidden;
  padding: 30px 20px 35px 20px;
  position: relative;
}
header .nav-box .new-product .left {
  max-height: 562px;
  padding: 0 0 24px 85px !important;
  overflow-y: auto;
  position: relative;
  border-right: 1px solid #dadada;
}
header .nav-box .new-product .nav-ul {
  overflow: hidden;
}
header .nav-box .new-product .nav-ul li {
  width: 100%;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  margin-bottom: 20px;
  cursor: default;
}
header .nav-box .new-product .nav-ul li a {
  color: #333;
}
header .nav-box .new-product .nav-ul li a:hover {
  color: #cc0000;
}
header .nav-box .new-product .nav-ul li.active a,
header .nav-box .new-solution .solution-ul li.active-sol a
 {
  color: #cc0000;
}
header .nav-box .product-bg .more-box {
  font-size: 14px;
  line-height: 22px;
  padding: 0 10px 25px 85px;
  text-align: left;
}
header .nav-box .product-bg .more-box a {
  color: #333;
  transition: all 0.3s;
}
header .nav-box .product-bg .more-box a:hover {
  color: #cc0000;
}
header .nav-box .product-bg .more-box span {
  margin-left: 15px;
}
.left::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
.left::-webkit-scrollbar-thumb {
  width: 15px;
  -webkit-box-shadow: inset 0 0 5px rgba(204,0,0,1);
  border-radius: 15px;
  background: rgba(204,0,0,1);
}
.left::-webkit-scrollbar-track {
  border-radius: 0;
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0);
  background: #f5f5f5;
}
header .nav-box .new-product .right {
  padding: 0 35px;
}
header .nav-box .new-product .right .product-box {
  width: 100%;
  max-height: 562px;
  overflow-y: auto;
}
header .nav-box .new-product .right .little-classify {
  width: 100%;
  display: none;
  column-count: 4; /* 列数 */
  -moz-column-count: 4; /* Firefox */
  -webkit-column-count: 4; /* Safari and Chrome */
  column-gap: 20px; /* 列间距 */
}
header .nav-box .new-product .right .active-pro,
header .nav-box .new-solution .right .active-solution {
  display: block;
}
header .nav-box .new-product .right .little-classify .model-box {
  /* float: left; */
  position: relative;
  margin-bottom: 30px;
  break-inside: avoid; /* 防止多列布局，分页媒体和多区域上下文中的意外中断 */
  width: 100%;
  padding: 0 25px;
}
header .nav-box .new-product .right .little-classify .model-box h4 {
  font-size: 14px;
  line-height: 22px;
  font-weight: 600;
  text-align: left;
  margin-bottom: 10px;
}
header .nav-box .new-product .right .little-classify .model-box h4 a {
  color: #333;
}
header .nav-box .new-product .right .little-classify .model-box h4 a:hover {
  color: #cc0000;
}
header .nav-box .new-product .right .little-classify .model-box h4 .right-more {
  display: inline-block;
  vertical-align: middle;
  width: 6px;
  height: 6px;
  border-top: 1px solid;
  border-right: 1px solid;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
  margin-left: 10px;
}
header .nav-box .new-product .right .little-classify .model-box ul {
  overflow: hidden;
  border-top: 1px solid #dfe1e6;
  padding-top: 10px;
}
header .nav-box .new-product .right .little-classify .model-box ul li {
  width: 100%;
  padding: 6px 0;
  font-size: 14px;
  line-height: 22px;
  text-align: left;
  display: flex;
}
header .nav-box .new-product .right .little-classify .model-box ul li a {
  color: #333;
  cursor: pointer;
}
header .nav-box .new-product .right .little-classify .hot {
  color: #cc0000;
  padding-left: 10px;
  font-weight: 600;
  font-size: 13px;
}
header .nav-box .new-product .right .little-classify .model-box ul li a:hover {
  color: #cc0000;
}
header .nav-box .new-product .right .product-box::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
header .nav-box .new-product .right .product-box::-webkit-scrollbar-thumb {
  width: 15px;
  -webkit-box-shadow: inset 0 0 5px rgba(204,0,0,1);
  border-radius: 15px;
  background: rgba(204,0,0,1);
}
header .nav-box .new-product .right .product-box::-webkit-scrollbar-track {
  border-radius: 0;
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0);
  background: #f5f5f5;
}
header .nav-box .new-product .right .flex-active {
  display: flex;
}
header .nav-box .new-product .right .flex-active .model-box {
  width: 25%;
}
@media screen and (max-width: 1440px) {
  header .nav-box .new-product .nav-ul li {
    font-size: 15px;
    line-height: 22px;
    margin-bottom: 12px;
  }
  header .nav-box .new-product .right .little-classify .model-box ul li {
    padding: 4px 0;
    font-size: 12px;
    line-height: 20px;
  }
}

/* 关于江南全站下拉 */
header .nav-box .ser-li.new-about-us .con.none .left {
  height: 380px;
}
header .nav-box .ser-li.new-about-us .con.none .right .fr .img-box {
  max-width: 428px;
  height: 220px;
}
header .nav-box .ser-li.new-about-us .con.none .right .fr .img-box img {
  width: 100%;
}
header .nav-box .ser-li .con.none .right {
  width: 50%;
  padding: 60px 5.5% 0 88px;
}
header .nav-box .con.none .content {
  width: 100%;
}
header .nav-box .ser-li.buli .con.none .left {
  width: 50%;
  padding: 0 80px 0 12%;
}
header .nav-box .ser-li.buli .con.none .left .about-us-cnt {
  max-width: 580px;
  margin: 0 auto;
  padding: 30px 0;
  float: right;
}
header .nav-box .ser-li .con.none .left .little-classify {
  width: 100%;
  column-count: 2; /* 列数 */
  column-gap: 20px; /* 列间距 */
}
header .nav-box .ser-li .con.none .left .active-about {
  display: block;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box {
  /* float: left; */
  position: relative;
  margin-bottom: 30px;
  break-inside: avoid; /* 防止多列布局，分页媒体和多区域上下文中的意外中断 */
  width: 100%;
  padding: 0 25px;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box h4 {
  font-size: 14px;
  line-height: 22px;
  font-weight: 600;
  text-align: left;
  margin-bottom: 10px;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box h4 a {
  color: #333;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box h4 a:hover {
  color: #cc0000;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box h4 .right-more {
  display: inline-block;
  vertical-align: middle;
  width: 6px;
  height: 6px;
  border-top: 1px solid;
  border-right: 1px solid;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
  margin-left: 10px;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box ul {
  overflow: hidden;
  border-top: 1px solid #dfe1e6;
  padding-top: 10px;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box ul li {
  width: 100%;
  padding: 6px 0;
  font-size: 14px;
  line-height: 22px;
  text-align: left;
  display: flex;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box ul li a {
  color: #333;
  cursor: pointer;
}
header .nav-box .ser-li .con.none .left .little-classify .hot {
  color: #cc0000;
  padding-left: 10px;
  font-weight: 600;
  font-size: 13px;
}
header .nav-box .ser-li .con.none .left .little-classify .model-box ul li a:hover {
  color: #cc0000;
}
header .nav-box .ser-li .con.none .left .product-box::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
header .nav-box .ser-li .con.none .left .product-box::-webkit-scrollbar-thumb {
  width: 15px;
  -webkit-box-shadow: inset 0 0 5px rgba(204,0,0,1);
  border-radius: 15px;
  background: rgba(204,0,0,1);
}
header .nav-box .ser-li .con.none .left .product-box::-webkit-scrollbar-track {
  border-radius: 0;
  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, 0);
  background: #f5f5f5;
}
header .nav-box .ser-li .con.none .left .flex-active {
  display: flex;
}
header .nav-box .ser-li .con.none .left .flex-active .model-box {
  width: 25%;
}
/* 头部下拉 火狐低版本解决方案 */
/* @-moz-document url-prefix(){
  header .nav-box .new-product .right .active-pro, header .nav-box .new-solution .right .active-solution{
    display: flex;
    flex-wrap: wrap;
  }
  header .nav-box .new-product .right .active-pro .model-box, header .nav-box .new-product .right .active-solution .model-box{
    width: 25%;
  }
} */