.case_detail_box {
  width: 100%;
  min-width: 1200px;
  overflow: hidden;
}

.case {
  width: 1200px;
  margin: 0 auto;
  margin-top: 40px;
  overflow: hidden;
  margin-bottom: 100px;
}

.case_l{
  float: left;
}

.case_l_top {
  width: 240px;
  height: 310px;
  background: url('../image/case-detail-l.jpg') no-repeat;
  background-size: cover;
  position: relative;
}

.case_l_text {
  text-align: center;
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 40px;
}

.case_detail {
  width: 130px;
  height: 40px;
  background: linear-gradient(0deg, #00467F, #003967);
  border-radius: 19px;
  margin: 0 auto;
  margin-top: 100px;
  text-align: center;
  line-height: 40px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
}

.case_l_back {
  width: 240px;
  height: 310px;
  background: rgba(0, 70, 127, 0.6);
  position: absolute;
  top: 0;
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case_l_bottom {
  width: 240px;
  height: 96px;
  background: #00467F;
  margin-top: 20px;
  padding-top: 25px;
}

.case_l_bottom span {
  display: block;
}

.case_l_bottom span:first-child {
  width: 193px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  color: #FFFFFF;
  margin: 0 auto;
}

.tel_btn img {
  width: 20px;
  height: 20px;
  display: inline-block;
  float: left;
}

.tel {
  float: left;
  padding-left: 12px;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  color: #FFFFFF;
}

.tel_btn {
  width: 160px;
  overflow: hidden;
  margin: 0 auto;
  margin-top: 15px;
}

.case_r{
  width: 930px;
background: #F8F8F8;

  float: right;
  padding-bottom: 40px;
  padding-top: 50px;
  
}

.news_title{
  text-align: center;
font-size: 24px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #333333;
line-height: 48px;

}

.user_info{
font-size: 14px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #999999;
line-height: 48px;
text-align: center;

}

.user_info span:nth-child(2n){
  margin-right: 31px;
}

.user_info span:nth-child(2n) +span{
  margin-right: 10px;
}

.news_content{
  width: 870px;
  margin: 0 auto;
font-size: 14px;
font-family: Microsoft YaHei;
font-weight: 400;
color: #666666;
line-height: 36px;

}

.news_content img{
  display: block;
  max-width: 870px;
  margin-top: 30px;
  margin-bottom: 30px;
}

.news_content p{
  padding: 0 26px;
}



.case_prev,.case_next{
  width: 334px;
height: 36px;
background: #DDDDDD;
float: left;
text-align: center;
line-height: 36px;
color: #666666;

}

.case_next{
  float: right;
}

.page_box{
  overflow: hidden;
  width:870px; 
  margin: 0 auto;
  margin-top: 30px;
}

.case_prev:hover ,.case_next:hover{
  color: #F4E9E9;
  background: #00467F;
}

.news_content::after{
  content: '';
  width: 870px;
height: 1px;
background: #E8E8E8;
display: inline-block;
}