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;
}