.case .casehead {
  width: 100%;
  position: relative;
}
.case .casehead .nav {
  position: absolute;
  top: 50%;
  left: 20em;
  z-index: 1;
  transform: translate(0, -50%);
}
.case .casehead #leftnav .nav li:nth-of-type(3) a {
  font-size: 24px;
  font-family: Source Han Sans CN;
  font-weight: 500;
  color: #FFFFFF;
}
.case .casehead img:nth-of-type(1) {
  width: 100%;
  display: block;
}
.case .casehead .toplogo {
  position: absolute;
  top: 6%;
  left: 20em;
  z-index: 1;
  display: flex;
  width: 63%;
  justify-content: space-between;
}
.case .casehead .toplogo .toprighttel {
  display: flex;
}
.case .casehead .toplogo .toprighttel .teltext {
  margin-left: 20px;
}
.case .casehead .toplogo .toprighttel .teltext P {
  color: #fff;
  margin: 0 0;
}
.case .casehead .toplogo .toprighttel .teltext p:nth-of-type(1) {
  font-size: 14px;
}
.case .casehead .toplogo .toprighttel .teltext p:nth-of-type(2) {
  font-size: 18px;
}
.case .casehead .casetext {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.case .casehead .casetext .decoration {
  display: inline-block;
  width: 126px;
  height: 126px;
  background: #1DB89F;
}
.case .casehead .casetext .text {
  font-size: 100px;
  font-family: Source Han Sans CN;
  font-weight: 800;
  color: #0D194A;
  margin-left: -64px;
}
.case .casemain .titletext {
  margin-top: 64px;
}
.case .casemain .titletext p:nth-of-type(1) {
  font-size: 24px;
  font-family: Source Han Sans CN;
  font-weight: 500;
  color: #314257;
  text-align: center;
}
.case .casemain .titletext p:nth-of-type(2) {
  font-size: 48px;
  font-family: Source Han Sans CN;
  font-weight: bold;
  color: #083875;
  text-align: center;
  margin-top: 30px;
  margin-bottom: 27px;
}
.case .casemain .titletext span {
  display: block;
  width: 67px;
  height: 6px;
  background: #083875;
  margin: 0 auto 54px auto;
}
.case .casemain .caseshow {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 54px;
}
.case .casemain .caseshow div {
  width: 32%;
}
.case .casemain .caseshow div img {
  width: 100%;
}
.case .casemain .caseshow div p:nth-of-type(1) {
  font-size: 28px;
  font-family: Source Han Sans CN;
  font-weight: 500;
  color: #212121;
  text-align: center;
}
.case .casemain .caseshow div p:nth-of-type(2) {
  font-size: 18px;
  font-family: Source Han Sans CN;
  font-weight: 400;
  color: #999999;
  line-height: 37px;
}
.case .casemain .caseshow div button {
  width: 124px;
  height: 43px;
  color: #fff;
  background: #083875;
  border-radius: 6px;
  border: none;
  margin-left: 255px;
}