/* .contentbox{
  margin-top: 147px;
} */
.v_1200{
  width: 1120px; 
  margin: 0 auto;
  overflow: hidden;
}
.middle-banner {
  position: relative;
  /*overflow: hidden;*/
  background: url(../images/home_img_banner.png) no-repeat;
  background-position: center;
  height: 390px;
  width: 100%;
}
.flex_between {
  display: flex;
  justify-content: space-between;
}

.fubon_title {
  font-size: 48px;
  color: #333;
  text-align: center;
  margin-bottom: 80px;
}

.case_title{
  margin-top: 60px;
}

.case_info{
  font-size: 16px;
  color: #333;
  line-height: 42px;
  margin-bottom: 60px;
}

.shihe_bg {
  position: relative;
  overflow: hidden;
  background: url(../images/shihe_bg.png) no-repeat;
  background-position: center;
  height: 320px;
  width: 100%;
  margin: 90px 0 80px;
}

.shihe_bg_title{
  font-size: 48px;
  color: #333333;
  padding-top: 80px;
}

.shihe_bg_info{
  font-size: 16px;
  color: #333;
  margin-top: 36px;
}

.xitong_box{
  margin-bottom: 60px;
}

.xitong_box li{
  width: 300px;
  height: 300px;
  float: left;
  margin-left: 110px;
  position: relative;
}

.xitong_box .li1{
  background: url(../images/xitong_bg1.png) no-repeat;
  background-position: center;
}

.xitong_box .li2{
  background: url(../images/xitong_bg2.png) no-repeat;
  background-position: center;
}

.xitong_box .li3{
  background: url(../images/xitong_bg3.png) no-repeat;
  background-position: center;
}

.xitong_box .li4{
  background: url(../images/xitong_bg4.png) no-repeat;
  background-position: center;
}

.xitong_box .li5{
  background: url(../images/xitong_bg5.png) no-repeat;
  background-position: center;
}

.xitong_box .li6{
  background: url(../images/xitong_bg6.png) no-repeat;
  background-position: center;
}

.xitong_box li:first-child{
  margin-left: 0;
}

.xitong_box li .li_text{
  padding: 0 22px;
  font-size: 16px;
  color: #333333;
  text-align: center;
  position: absolute;
  bottom: 40px;
}

.jishu_title{
  padding-top: 60px;
}

.jishu_img img{
  margin: 0 auto;
  width: 1120px;
}

.claer{
  clear: both;
}

.jishu_list{
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 90px;
}

.jishu_list li{
  width: 372px;
  text-align: center;
}

.jishu_list li .jishu_item_title{
  font-size: 18px;
  color: #FF6464;
  margin-bottom: 20px;
}

.jishu_list li .jishu_item_text{
  font-size: 16px;
  color: #333333;
  line-height: 42px;
}

.jishu_line{
  width: 1px;
  height: 78px;
  background-color: #B3A18F;
}

.xitong_adv{
  margin-top: 100px;
}

.adv_list li{
  float: left;
  width: 222px;
  text-align: center;
  margin-left: 76px;
}

.adv_list li:first-child{
  margin-left: 0;
}

.adv_list li .adv_title{
  font-size: 18px;
  color: #333;
  font-weight: bold;
  height: 54px;
  margin: 50px 0 20px;
}

.adv_list li .adv_text{
  font-size: 16px;
  color: #999999;
  line-height: 32px;
  padding: 0 15px;
}

.success-example{
  margin-bottom: 100px;
}

.example_list{
  float: left;
}

.example_box{
  padding-bottom: 100px;
}