.page {
  font-family: PingFangSC-Light, PingFang SC;
  color: #10193A;
}
.page .main1 {
  height: 100vh;
  background: url(./img/img1.png) no-repeat center center;
  background-size: cover;
  font-size: 52px;
  font-weight: bold;
  color: #fff;
  padding-top: 60vh;
  text-align: center;
  letter-spacing: 4px;
  box-sizing: border-box;
}

.page .main2 {
  font-size: 16px;
  font-family: PingFangSC-Light, PingFang SC;
  font-weight: normal;
  color: #10193A;
  line-height: 30px;
  text-align: center;
  padding-bottom: 50px;
  padding-top: 40px;
}

.page .main2-1 {
  padding: 0px 0 100px 0;
  /* text-align: center; */
  color: #10193A;
  /* line-height: 1.7; */
  font-size: 16px;
  font-weight: normal;
}

.page .main3 {
  padding-bottom: 136px;
  font-weight: bold;
  letter-spacing: 4px;
  color: #10193A;
}

.page .main3-title {
  font-size: 36px;
  padding-bottom: 54px;
  text-align: center;
}

.page .main3-items {
  /* width: 40vw; */
  width: 700px;
  display: flex;
  margin: 0 auto;
  justify-content: space-between;
  /* padding-left: 100px; */
}

.page .main3-item {
  font-size: 24px;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #10193A;
  cursor: pointer;
  text-align: center;
}

.page .main3-item .sub-item {
  font-size: 18px;
  letter-spacing: normal;
}

.page .main3-item:hover {
  color: #00669F;
}

.page .main4 {
  width: 60vw;
  margin: 0 auto;
  display: block;
  margin-bottom: 50px;
}

.page .main5 {
  background-color: #F3F3F5;
  padding-top: 120px;
  padding-bottom: 180px;
  text-align: center;
}

.page .main5-title {
  font-size: 30px;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #10193A;
  letter-spacing: 4px;
}

.page .main5-subtitle {
  font-size: 16px;
  font-family: PingFangSC-Light, PingFang SC;
  font-weight: 300;
  color: #00669F;
  padding-top: 14px;
  letter-spacing: 1px;
}

.page .main5-items {
  padding-top: 40px;
  width: 790px;
  display: flex;
  /* justify-content: space-between; */
  margin: 0 auto;
}

.page .main5-item {
  text-align: center;
  width: 236px;
  margin-right: 36px;
  height: 176px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #10193A;
  font-size: 20px;
  cursor: pointer;
  font-weight: bold;
}

.page .main5-item:last-child {
  margin-right: 0px;
}

.page .main5-item:hover {
  color: #fff;
  background-color: #10193A;
}

.page .main6 {
  background-color: #F3F3F5;
  color: #10193A;
  padding-bottom: 200px;
}

.page .main6-title {
  font-size: 40px;
  font-weight: bold;
  padding-bottom: 10px;
  text-align: center;
}

.page .main6-subtitle {
  text-align: center;
  font-size: 18px;
  padding-bottom: 50px;
}

.page .main6-video {
  width: 60vw;
  margin: 0 auto;
  display: block;
}