html {
  font-size: 5.20833333vw;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}
.banner {
  width: 100%;
  background: #4F51C0;
  padding: 0.8rem 0;
  box-sizing: border-box;
}
nav {
  cursor: pointer;
  height: 96px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: border-box;
}
nav > img {
  height: 96px;
}
nav > ul {
  display: flex;
  justify-content: center;
}
nav > ul > li {
  font-size: 22px;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #fff;
  margin-right: 0.87rem;
}
nav > ul > li.nav4 {
  margin-right: 0;
}
nav > ul > li a {
  display: inline-block;
  padding: 7px 0;
  border-bottom: 3px solid transparent;
  color: #fff;
}
.section1 {
  width: 100%;
  height: 9.53rem;
  box-sizing: border-box;
  position: relative;
  background: #4F51C0 url('../img/pc/box1/bg.png') no-repeat top left / 100% 100%;
}
.section1 > ul {
  padding-left: 2.4rem;
  padding-top: 1.07rem;
}
.section1 > ul > li {
  font-size: 0.75rem;
  font-family: Gilroy-Bold, Gilroy;
  font-weight: bold;
  color: #FFFFFF;
  line-height: 1rem;
}
.section1 > ul > li.small {
  font-size: 0.44rem;
  font-family: PingFang SC-Regular, PingFang SC;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 0.65rem;
}
.section1 > ul > li:nth-child(2) {
  margin-bottom: 0.63rem;
}
.section1 > ul > li:nth-child(4) {
  margin-bottom: 1rem;
}
.section1 > ul > li.download {
  width: 3.11rem;
  height: 1.3rem;
  background: url('../img/pc/button.png') no-repeat top left / 100% 100%;
  color: #fff;
  padding-left: 1.3rem;
  padding-top: 0.13rem;
}
.main {
  width: 100%;
  box-sizing: border-box;
}
.main .section3 {
  padding: 30px 0;
  box-sizing: border-box;
  text-align: center;
}
.main .section3 .title {
  margin-bottom: 0.5rem;
  font-size: 0.64rem;
  font-family: PingFang SC-Semibold, PingFang SC;
  font-weight: 600;
  color: #202132;
  line-height: 90px;
  text-align: left;
  margin-left: 3.37rem;
}
.main .section3 .title .title-img {
  height: 0.4rem;
}
.main .section3 .b-box {
  width: 100%;
  height: 6.94rem;
  box-sizing: border-box;
  text-align: center;
}
.main .section3 .b-box > ul {
  padding-left: 3.37rem;
}
.main .section3 .b-box > ul > li {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 0.8rem;
}
.main .section3 .b-box > ul > li > img {
  width: 1.9rem;
  margin-right: 0.64rem;
}
.main .section3 .b-box > ul > li > div {
  text-align: left;
}
.main .section3 .b-box > ul > li > div > p:nth-child(1) {
  font-size: 0.48rem;
  font-family: PingFang SC-Semibold, PingFang SC;
  font-weight: 600;
  color: #1E293B;
  line-height: 0.56rem;
  margin-bottom: 0.14rem;
}
.main .section3 .b-box > ul > li > div > p:nth-child(2) {
  font-size: 0.32rem;
  font-family: PingFang SC-Regular, PingFang SC;
  font-weight: 400;
  color: #334155;
  line-height: 0.38rem;
}
.main .section4 {
  background-color: #fff;
  color: #000;
  padding: 1rem 0 1.48rem;
  box-sizing: border-box;
  text-align: center;
}
.main .section4 .m-title {
  font-size: 0.66rem;
  font-family: HarmonyOS Sans-Bold, HarmonyOS Sans;
  font-weight: bold;
  color: #1E293B;
  line-height: 0.77rem;
}
.main .section4 > ul {
  margin-top: 1.1rem;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.main .section4 > ul > li .title {
  font-size: 0.4rem;
  font-family: PingFang SC-Medium, PingFang SC;
  font-weight: 500;
  color: #1E293B;
  line-height: 0.47rem;
  margin-bottom: 0.6rem;
  text-align: left;
}
.main .section4 > ul > li .content {
  width: 4.31rem;
  height: 4.16rem;
  border: 1px #000 dashed;
  font-size: 0.3rem;
  padding-top: 3rem;
  box-sizing: border-box;
}
.footer {
  width: 100%;
  height: 2rem;
  background: #4F51C0;
  box-sizing: border-box;
}
.footer > ul {
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.footer > ul > li {
  font-size: 0.16rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #fff;
  line-height: 0.22rem;
}
.footer > ul > li .frist {
  font-size: 0.2rem;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #000;
  line-height: 0.28rem;
  margin-bottom: 0.18rem;
}
.footer > ul > li .frist > img {
  margin-left: 0.1rem;
  width: 0.48rem;
  vertical-align: middle;
}
.footer > ul > li:nth-of-type(1) {
  margin-right: 5rem;
}
.footer > ul > li:nth-of-type(1) > img {
  width: 3rem;
  margin-top: 0.24rem;
  margin-bottom: 0.3rem;
}
.footer > ul > li:nth-of-type(1) > div {
  font-size: 0.16rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #fff;
  line-height: 0.22rem;
}
.footer > ul > li:nth-of-type(2) {
  margin-right: 2rem;
  color: #000;
}
.footer > ul > li:nth-of-type(2) > div {
  margin-bottom: 0.12rem;
  width: 3rem;
}
.footer > ul > li:nth-of-type(3) {
  color: #000;
}
.footer > ul > li:nth-of-type(3) > ul {
  display: flex;
  justify-content: center;
}
.footer > ul > li:nth-of-type(3) > ul > li > img {
  width: 0.38rem;
  margin-right: 0.24rem;
}