html,body{
    width: 100%;
    padding: 0;
    margin: 0;
    min-width: 1200px;
}
body {
    font-family: PingFang,PingFang-SC,Microsoft YaHei,SimHei,  Arial,sans-serif !important;
}
div{
    box-sizing: border-box;
}

.header{
    position: relative;
    width: 100%;
    background-size: cover;
    color: #fff;
    height: 705px;
    background-image: url(../img/top-bg.jpg);
    background-position: center;
    background-size: cover;
}
.top-bg{
    /* position: absolute; */
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1;
}
.header .name{
    height: 34px;
    font-size: 25px;
    font-family: PingFang-SC-Heavy, PingFang-SC;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 34px;
    margin-right: 400px;
    display: inline-block;
}
.header .nav{
    display: inline-block;
}
.header .nav-item{
    display: inline-block;
    color: #fff;
    text-decoration: none;
}
.header-wrap{
    width: 1000px;
    margin: 0 auto;
    padding-top: 30px;
}
.header .nav .nav-item{
    font-size: 18px;
    margin-right: 30px;
    cursor: pointer;
}
.header .content{
    width: 1000px;
    font-size: 33px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 60px;
    letter-spacing: 9px;
    margin: 120px auto 0;
}
.header .content .text{
    width: 725px;
}
.header .content .text2{
    width: 687px;
    height: 70px;
    font-size: 20px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 30px;
    margin-top: 76px;
}
.xingzuo-img{
    width: 656px;
    height: 655px;
}

.main{
    width: 100%;
    margin: 0 auto;
    z-index: 2;
}

.item-img{
    width: 478px;
}

.main{
    position: relative;
    margin-top: -235px;
}

.main-item{
    margin: 0 auto;
}

.item-wrap{
    width: 1000px;
    margin: 0 auto;
    /* padding-bottom: 40px; */
    box-sizing: border-box;
    height: 653px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
}

.main-item2{
    width: 100%;
    /* background: linear-gradient(360deg, #F2F4F8 0%, #FFFFFF 100%); */
    margin: 0 auto;
}
.app-name{
    height: 82px;
    font-size: 40px;
    font-family: PingFang-SC-Heavy, PingFang-SC;
    font-weight: 800;
    color: #272628;
    line-height: 82px;
}
.item-intro{
    width: 478px;
    font-size: 20px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #272628;
    line-height: 30px;
    letter-spacing: 1px;
    margin-top: 20px;
    white-space: pre-line;
}
.btn{
    height: 44px;
    background: linear-gradient(270deg, #4999D5 0%, #173D79 100%);
    border-radius: 23px;
    text-align: center;
    line-height: 44px;
    padding: 0;
    margin-right: 35px;
    color: #fff;
    margin-top: 20px;
    display: inline-block;
	padding:0px 30px;
    cursor: pointer;
    text-decoration: none;
}
.item-icon{
    width: 76px;
    height: 76px;
    vertical-align: middle;
}
.left, .right{
    width: 478px;
}
.app-name{
    display: inline-block;
    vertical-align: middle;
    margin-left: 14px;
}
.right{
    padding-bottom: 20px;
    padding-top: 0;
    box-sizing: border-box;
}

.footer{
    width: 100%;
    height: 508px;
    background: linear-gradient(270deg, #499AD6 0%, #10316C 100%);
    padding-top: 130px;
    box-sizing: border-box;
    position: relative;
}
.footer-wrap{
    width: 1000px;
    margin: 0 auto;
}
.footer-icon{
    height: 35px;
    vertical-align: middle;
}
.footer-item{
    margin-top: 35px;
}
.footer-item .text{
    vertical-align: middle;
    display: inline-block;
    height: 35px;
    line-height: 35px;
    font-size: 25px;
    color: #fff;
}

.tip{
    position: absolute;
    bottom: 63px;
    width: 412px;
    font-size: 13px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.88);
    margin: auto;
    text-align: center;
    width: 100%;
}

.desc{
    height: 828px;
    background: transparent;
    padding-top: 150px;
    box-sizing: border-box;
    z-index: 2;
    position: relative;
}
.desc .left, .desc .right{
    display: inline-block;
    vertical-align: top;
}
.desc-wrap{
    width: 1000px;
    margin: 0 auto;
    
}
.desc-wrap2{
    display: flex;
    align-items: center;
}
.desc .left{
    width: 622px;
}
.desc .right{
    width: 430px;
}
.desc .title{
    height: 75px;
    font-size: 50px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    font-weight: bold;
    color: #272628;
    line-height: 75px;
    margin-bottom: 55px;
}

.art1,.art2{
    width: 501px;
    font-size: 20px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #272628;
    line-height: 40px;
    letter-spacing: 2px;
}
.art1{
    margin-bottom: 35px;
}

.circle1{
    width: 276px;
    height: 276px;
    position: absolute;
    left: 44px;
    top: 1044px;
}
.circle2{
    width: 492px;
    height: 491px;
    position: absolute;
    right: 0px;
    top: 937px;
    
}
.circle3{
    width: 539px;
    height: 574px;
    position: absolute;
    left: 0px;
    top: 1743px;
}
.circle4{
    width: 537px;
    height: 572px;
    position: absolute;
    right: 0px;
    top: 2138px;
}
.xz{
    height: 550px;
}