.center {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.flex {
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex-wrap {
    display: flex;
    flex-wrap: wrap;
}
.flex-between{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex-left {
    display: flex;
    justify-content: left;
    align-items: center;
}
.management {
    padding: 77px 0 80px;
}
.management .title {
    font-size: 34px;
    font-weight: 600;
    color: #2A2D2F;
}
.management .subtitle {
    font-size: 18px;
    font-weight: 400;
    color: #2A2D2F;
    margin: 12px 0 60px;
}
.management img {
    width: 1200px;
    height: 613px;
}
.duty {
    padding: 80px 0;
    background: #FAFBFD;
}
.duty .title {
    font-size: 34px;
    font-weight: 600;
    color: #2A2D2F;
    line-height: 48px;
}
.duty .subtitle {
    font-size: 18px;
    font-weight: 400;
    color: #2A2D2F;
    margin: 22px 0 60px;
}

.duty div .card:nth-child(2) {
    margin: 0 30px;
}
.duty div .card{
    width: 378px;
    height: 384px;
    background: #FFFFFF;
    border-radius: 10px;
    border: 1px solid #EBECF0;
}
.duty div .card .pic1 {
    width: 378px;
    height: 146px;
    background: url(../images/pic1.png) no-repeat;
    background-size: cover;
    border-radius: 10px 10px 0 0;
}
.duty div .card .pic2 {
    width: 378px;
    height: 146px;
    background: url(../images/pic2.png) no-repeat;
    background-size: cover;
    border-radius: 10px 10px 0 0;
}
.duty div .card .pic3 {
    width: 378px;
    height: 146px;
    background: url(../images/pic3.png) no-repeat;
    background-size: cover;
    border-radius: 10px 10px 0 0;
}
.duty div .card div {
    position: relative;
}
.duty div .card div div {
    font-size: 20px;
    font-weight: 600;
    color: #FFFFFF;
    position: absolute;
    bottom: 30px;
    left: 30px;
}
.duty div .card .pic1 img,.duty div .card .pic2 img,.duty div .card .pic3 img {
    width: 128px;
    height: 128px;
    position: absolute;
    top:80px;
    right: 0;
}
.duty div .card ul li img {
    width: 8px;
    height: 8px;
    margin:0 10px 0 30px;
}
.duty div .card ul li div {
    font-size: 16px;
}
.duty div .card ul li {
    margin-top: 15px;
}
.duty div .card ul {
    margin-top: 35px;
}
.experience {
    padding: 80px 0;
}
.experience .title {
    font-size: 34px;
    font-weight: 600;
    color: #2A2D2F;
}
.experience .subtitle {
    font-size: 18px;
    font-weight: 400;
    color: #2A2D2F;
    margin: 22px 0 30px;
}
.experience img {
    width: 788px;
    height: 580px;
}
.upgrade {
    position: relative;
    height: 1050px;
}
.upgrade .bg {
    width: 100%;
    height: 400px;
    background: url(../images/store_bg1.jpg) no-repeat;
    background-size: cover;
}
.upgrade .main {
    position: absolute;
    top: 80px;
}
.upgrade .main .title {
    font-size: 34px;
    font-weight: 600;
    color: #FFFFFF;
}
.upgrade .main .subtitle {
    font-size: 18px;
    font-weight: 400;
    color: #FFFFFF;
    margin: 22px 0 60px;
}
.upgrade ul {
    width: 1200px;
    /*height: 601px;*/
}
.upgrade .main ul li {
    width: 285px;
    height: 294px;
    background: #ffffff;
    margin-right: 20px;
    box-shadow: 0px 0px 40px 0px rgba(110, 125, 141, 0.1);
    border-radius: 10px;
}
.upgrade .main ul li:first-child {
    margin-bottom: 20px;
}
.lr {
    margin-right: 0!important;
}
.upgrade .main ul li div {
    margin: 36px 0 36px 40px;
}
.upgrade .main ul li div img {
    width: 44px;
    height: 44px;
    margin-bottom: 16px;
}
.upgrade .main ul li div p {
    font-size: 20px;
    font-weight: 600;
    color: #2A2D2F;
    margin-bottom: 12px;
}
.upgrade .main ul li div dl dd {
    font-size: 16px;
    font-weight: 400;
    color: #7E8491;
    margin-bottom: 10px;
}
.upgrade .main .btn {
    width: 220px;
    height: 54px;
    background: linear-gradient(128deg, #00C396 0%, #12CEA5 100%);
    border-radius: 4px;
    line-height: 54px;
    text-align: center;
    color: #FFFFFF;
    font-size: 18px;
    margin-top: 80px;
}
.advantage {
   padding: 80px 0;
    background: #FAFBFD;
}
.advantage .title {
    font-size: 34px;
    font-weight: 600;
    color: #2A2D2F;
    margin-bottom: 60px;
}
.advantage ul li {
    width: 240px;
    height: 212px;
}
.advantage ul li img {
    width: 96px;
    height: 96px;
    margin-bottom: 20px;
}
.advantage ul li p {
    font-size: 20px;
    font-weight: 600;
    color: #2A2D2F;
    margin-bottom: 12px;
}
.advantage ul li div {
    font-size: 16px;
    font-weight: 400;
    color: #7E8491;
    text-align: center;
    line-height: 28px;
}
.apply {
    padding: 67px 0;
    background: url(../images/bg2.png) no-repeat;
    background-size: cover;
}
.apply .title {
    font-size: 32px;
    font-weight: 500;
    color: #FFFFFF;
}
.apply .btn {
    color: #13A786;
    font-size: 20px;
    width: 230px;
    height: 44px;
    background: #FFFFFF;
    border-radius: 23px;
    border: 2px solid #FFFFFF;
    line-height: 44px;
    text-align: center;
    margin-top: 30px;
}