/* 回顶部 */
.icon_back {
  position: fixed;
  bottom: 60px;
  right: 20px;
  z-index: 10;
  width: 68px;
  height: 68px;
  cursor: pointer;
  display: none;
}



.content {
  height: 300px;
  background-color: yellowgreen;
}

/* banner */
.banner {
  position: relative;
  width: 100%;
  min-width: 1200px;
  height: 300px;
}

.banner_img {
  width: 100%;
  height: 300px;
  position: absolute;
  transform: translatex(-50%);
  left: 50%;
}

.banner_title {
  position: absolute;
  bottom: 0;
  left: 50%;
  margin-left: -600px;
  box-sizing: border-box;
  padding-left: 41px;
  padding-top: 30px;
  width: 1200px;
  height: 110px;
  background-color: rgba(255, 255, 255, 0.8);
}

.banner_title>h1 {
  font-size: 28px;
  color: #333;
}

.banner_title>h1>span {
  color: #206bd1;
}

.banner_title_line {
  width: 108px;
  height: 3px;
  margin: 3px 0;
  background-color: #88cc2f;
}

.banner_title_en {
  font-size: 16px;
  color: #333;
  font-weight: bold;
}

/* 新闻列表的标题 */
.news_list_title {
  border-bottom: 1px solid #dedede;
}

.news_list_title_left {
  position: relative;
  padding-bottom: 9px;
}

.news_list_title_left>p {
  font-size: 18px;
  color: #333;
  font-weight: bold;
}

.news_list_title_line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: #88cc2f;
}

.news_list_title_more {
  line-height: 33px;
  font-size: 14px;
  color: #999;
}
.news_list_title_more:hover {
  color: #006cff;
}

/* 面包屑导航 */
.bread_nav {
  width: 1200px;
  margin: 25px auto 0 auto;
  font-size: 14px;
  color: #666;
}

.bread_line {
  position: relative;
  top: 3px;
  display: inline-block;
  margin: 0 10px;
  width: 1px;
  height: 16px;
  background-color: #acacac;
}

.bread_nav>span {
  margin-right: 25px;
}

.bread_nav_active {
  color: #206bd1;
}
.bread_nav > a:hover {
  color: #206bd1;
}

/* 左侧导航 */
.left_nav {
  width: 220px;
  background-color: #fff;
}

.left_nav_title {
  box-sizing: border-box;
  padding: 23px 20px 18px 40px;
  background-color: #206bd1;
}

.left_nav_title>h1 {
  font-size: 22px;
  color: #fff;
}

.left_nav_line {
  height: 1px;
  background-color: #fff;
  opacity: 0.2;
  margin-top: 8px;
  margin-bottom: 5px;
}

.left_nav_title>span {
  font-size: 16px;
  color: #fff;
}

.left_nav_list {
  box-sizing: border-box;
  padding: 0 10px;
}

.left_nav_item {
  text-align: center;
  height: 58px;
  line-height: 58px;
  border-bottom: 1px solid #f3f3f3;
}

.left_nav_item:last-child{
  border-bottom: none;
}

.left_nav_item>a {
  position: relative;
  font-size: 16px;
  color: #666;
  padding-left: 15px;
  display: inline-block;
  min-width: 69px;
}

.left_nav_item>a::before {
  position: absolute;
  left: 0;
  top: 19px;
  width: 4px;
  content: "";
  background-color: transparent;
  height: 0;
  display: inline-block;
  -webkit-transition: all .3s ease-in-out;
  transition: all .3s ease-in-out;
}

.left_nav_item:hover>a::before {
  height: 20px;
  background-color: #206bd1;
}

.left_nav_item:hover>a {
  color: #206bd1;
  transition: all .3s ease-in-out;
}

.left_nav_item .left_nav_active {
  color: #206bd1;
}

.left_nav_item .left_nav_active::before {
  position: absolute;
  left: 0;
  top: 19px;
  width: 4px;
  content: "";
  background-color: #206bd1;
  height: 21px;
  display: inline-block;
}

.content_web{
  margin-bottom: 30px;
}

@media screen and (max-width: 900px){
  .banner{display: none;}
  .banner_img{max-height: 100%;}
  .banner_title{background: transparent;color: #fff;width: 100px;height: 50px;top: 0;right: 0;bottom: 0;left: 0;margin: auto;padding: 0;}
  .banner_title>h1{color: #fff;font-size: .46rem;}
  .banner_title>h1>span{color: #fff;}
  .bread_nav{display: none;}
  .left_nav{display: none;}
  .mgt30{margin-top: 0;padding-top: .3rem;background-color: #fff;}
  .mgb80{margin-top: 0;padding-bottom: .1rem;}
  .content_web{margin-bottom: .3rem;}
}