.mainzhichi {
  padding: 20px 0;
}
.mainzhichi1 {
  background: #f7f7f7;
}

.tecTitle h2 {
  font-size: 26px;
  font-family: Source Han Sans CN;
  font-weight: 500;
  color: #333333;
  padding: 40px 0;
}
.tecTitle p {
  font-size: 16px;
  font-family: Source Han Sans CN;
  font-weight: 300;
  color: #666666;
  line-height: 40px;
  margin-bottom: 20px;
}
.mainItem li {
  width: 261px;
  height: 297px;
  margin: 8px;
  padding: 15px 15px;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0px 0px 27px 0px rgba(118, 118, 118, 0.29);
}
.mainItem h3 {
  font-size: 20px;
  font-family: Source Han Sans CN;
  font-weight: 400;
  color: #333333;
}
.mainItem4 li {
  height: 390px;
  width: 261px;
  margin: 15px;
  padding: 15px 15px;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0px 0px 27px 0px rgba(118, 118, 118, 0.29);
}
.mainItem li p {
  font-size: 14px;
  font-family: Source Han Sans CN;
  font-weight: 300;
  color: #666666;
}
.mainzhichi2 {
  margin: 0 auto;
}
.tecTitle {
  text-align: center;
}
.mainzhichi2 .mainItem {
  display: flex;
  justify-content: center;
}
.mainItem .infoText {
  text-align: center;
}
.mainzhichi3 {
  background: #f7fafe;
}
.fiveGmessagePro dl dt {
  font-size: 16px;
  font-family: Source Han Sans CN;
  font-weight: 300;
  color: #000;
}
.fiveGmessagePro dl dt dd {
  font-size: 14px;
  font-family: Source Han Sans CN;
  font-weight: 300;
  color: #999;
}

.tecTitle {
  margin-top: 60px;
}