.operation_service .pic_set{
  background: #F1F1F5;
  padding: 80px 0px 87px;
  display: flex;
}
.operation_service .pic_set img{
  margin: auto;
  max-width: 1080px;
}
.operation_service h1{
  margin: 100px 0px 81px;
}
.operation_service{
  margin-bottom: 100px;
}
.common_demand{
  margin: 0 auto;
}
.common_demand .demand_list{
  position: relative;
  height: 672px;
  font-size: 0px;
}
.list_flex{
  display: flex;
  justify-content: center;
}
.list_flex .demand_list{
  /* width: calc((100% - 164px)/2); */
  width: 470px;
  margin-right: 169px;
}
.list_flex .demand_list:last-child{
  margin-right: 0px;
}
.common_demand .demand_list .title_name{
  position: absolute;
  top: 0px;
  height: 60px;
  width: 200px;
  background-color: #666666;
  color: #fff;
  z-index: 111;
  padding: 8px 0px 0px 20px;
  box-sizing: border-box;
}
.common_demand .demand_list .more_btn{
  position: absolute;
  right: 30px;
  bottom: 26px;
  font-weight: bold;
}
.common_demand .demand_list .title_name::after{
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  right: 0px;
  top: 0px;
  border-top: 30px solid #fff;
  border-left: 20px solid transparent;
}
.common_demand .demand_list .title_name::before{
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  right: 0px;
  bottom: 0px;
  border-bottom: 30px solid #EDF8FF;
  border-left: 20px solid transparent;
}
.common_demand .demand_list .demand_list_right{
  width: 320px;
  /* width: 70%; */
  background: #EDF8FF;
  position: absolute;
  top: 30px;
  left: 150px;
  height: calc(100% - 30px);
  border-radius: 10px;
}
.common_demand .demand_list .demand_list_left{
  position: absolute;
  bottom: 0px;
  z-index: 11;
  /* width: 70%; */
}
.common_demand .demand_list .demand_list_right .demand_list_right_li{
  height: 60px;
  text-align: right;
  padding-right: 60px;
  color: #666;
  font-weight: bold;
  font-size: 14px;
  line-height: 60px;
  cursor: pointer;
}
.common_demand .demand_list .demand_list_right .demand_list_right_li_active{
  background-color: #0098FF;
  color: #fff;
}
.demand_list_right_li_first{
  height: 60px;
  text-align: center;
  font-weight: bold;
  color: #666;
  font-size: 14px;
  line-height: 60px;
}
.big_demand{
  margin-left: calc(50% - 550px);
}
.big_demand .demand_list .title_name{
  width: 300px;
}
.big_demand .demand_list .demand_list_right{
  width: 952px;
}
.big_demand .demand_list{
  height: 612px;
  margin-top: 88px;
}