body {
    background: #fdfdfd;
    width: 100%;
    margin: 0;
}

a:hover {
    text-decoration: none;
}

.container {
    margin: 0px auto;
    max-width: 1600px;
    position: relative;
}

.row {
    display: flex;
    flex-direction: row;
}

.column {
    display: flex;
    flex-direction: column;
}

.flex-1 {
    flex: 1 1 0px;
}

body {
}

.header {
    background-image: url(../images/bodybg.png);
    background-position: center top;
    background-repeat: no-repeat;
    background-size: cover;
    width: 100%;
    height: 900px;
}

.header .logo {
    float: left;
    background: url(../images/logo.png) left center no-repeat;
    padding-left: 50px;
    height: 60px;
    line-height: 60px;
    color: #fff;
    margin-top: 20px;
}

.header .down-btn {
    float: right;
    font-size: 20px;
    color: #fff;
    background-color: #2394f2;
    height: 50px;
    border-radius: 30px;
    width: 180px;
    margin-top: 30px;
    text-align: center;
    line-height: 50px;
}

.header .tit11 {
    position: absolute;
    top: 190px;
    left: 0px;
    width: 100%;
    text-align: center;
}

.header .tit1 {
    background: url(../images/mainlogo.png) left center no-repeat;
    font-size: 60px;
    color: #fff;
    padding-left: 100px;
    box-sizing: border-box;
    display: inline-block;
}

.header .p1 {
    position: absolute;
    width: 780px;
    line-height: 56px;
    font-size: 26px;
    left: calc(50% - 390px);
    top: 340px;
    color: #fff;
    text-align: center;
}

.header .down-btn-main {
    text-align: center;
    width: 280px;
    height: 80px;
    line-height: 80px;
    font-size: 34px;
    color: #fff;
    background-color: #2394f2;
    position: absolute;
    left: calc(50% - 140px);
    top: 560px;
    border-radius: 40px;
}

.header .navbox {
    position: absolute;
    width: 850px;
    left: calc(50% - 425px);
    display: flex;
    justify-content: space-between;
    top: 730px;
}

.header .navbox .item {
    width: 94px;
    height: 100px;
    display: inline-block;
    cursor: pointer;
}

.header .navbox .item i {
    width: 100%;
    height: 70px;
    display: block;
    opacity: 0.8;
}

.header .navbox .item span {
    display: block;
    width: 100%;
    height: 20px;
    line-height: 20px;
    color: #fff;
    text-align: center;
    font-size: 20px;
    margin-top: 4px;
}

.header .navbox .item:nth-child(1) i {
    background: url(../images/na1.png) center top no-repeat
}

.header .navbox .item:nth-child(2) i {
    background: url(../images/na2.png) center top no-repeat
}

.header .navbox .item:nth-child(3) i {
    background: url(../images/na3.png) center top no-repeat
}

.header .navbox .item:nth-child(4) i {
    background: url(../images/na4.png) center top no-repeat
}

.header .navbox .item.on i {
    opacity: 1;
}

.clear {
    clear: both;
}

.middle {
}

.middle .t1 {
    float: left;
    width: 100%;
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-top: 80px
}

.middle .p1 {
    float: left;
    width: 100%;
    text-align: center;
    font-size: 30px;
    color: #8f8f8f;
    margin-top: 20px
}

.middle .list {
    float: left;
    width: 100%;
    margin-top: 110px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.middle .list .li {
    width: calc(25% - 33px);
    border: 1px solid #f3f3f3;
    border-radius: 30px;
    background-color: #fff;
    margin-bottom: 50px;
    box-shadow: 0 0 23px #e9e9e9;
}

.middle .list .li .img {
    display: block;
    text-align: center;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.middle .list .li .t2 {
    display: block;
    text-align: center;
    font-size: 22px;
    font-weight: 700;
}

.middle .list .li .p2 {
    display: block;
    text-align: center;
    font-size: 16px;
    color: #8f8f8f;
    margin: 30px 0
}

.middle .list .li .btn {
    margin: 0 auto 30px;
    width: 166px;
    height: 46px;
    text-align: center;
    line-height: 46px;
    background-color: #2394f2;
    border-radius: 38px;
    color: #fff;
    font-weight: bold;
    display: block;
    font-size: 16px;
}

.middlestyle {
    background: #ffffff;
    border-radius: 30px;
    padding: 10px 20px
}

.list2 {
    height: 440px;
    display: flex;
    justify-content: space-between;
    float: left;
    width: 100%;
    margin-top: 40px;
}

.list2 .item {
    width: 23%;
    height: 438px;
    border-radius: 50px;
}

.list2 .item:nth-child(1) {
    background: url(../images/bk1@1x.png) center center no-repeat;
    background-size: 100% 100%
}

.list2 .item:nth-child(2) {
    background: url(../images/bk2@1x.png) center center no-repeat;
    background-size: 100% 100%
}

.list2 .item:nth-child(3) {
    background: url(../images/bk3@1x.png) center center no-repeat;
    background-size: 100% 100%
}

.list2 .item:nth-child(4) {
    background: url(../images/bk4@1x.png) center center no-repeat;
    background-size: 100% 100%
}

.list2 .item span {
    float: left;
    margin-top: 300px;
    width: 100%;
    text-align: center;
    font-size: 38px;
    color: #444549;
}

.list2 .item p {
    margin-top: 20px;
    color: #656766;
    font-size: 26px;
    float: left;
    width: 100%;
    float: left;
    text-align: center;
}

.info2 {
    float: left;
    width: 100%;
}

.info2 .mainlogo {
    float: left;
    width: 100%;
    text-align: center;
    margin-top: 50px
}

.info2 p {
    float: left;
    width: 100%;
    text-align: center;
    color: #656766;
    font-size: 26px;
    margin: 30px 0
}

.info2 .btn {
    float: left;
    width: 366px;
    height: 76px;
    text-align: center;
    line-height: 76px;
    background-color: #2394f2;
    border-radius: 38px;
    color: #fff;
    font-weight: bold;
    display: block;
    font-size: 28px;
    margin-left: calc(50% - 183px);
}

.foot {
    margin-top: 100px;
}

.foot p {
    line-height: 50px;
    font-size: 20px;
    color: #a6a6a6;
    display: block;
    width: 100%;
    text-align: center;
}

.hover {
    cursor: pointer;
    transition: 0.5s all;
}

.hover:hover {
    background-color: #33A5FF;
    transform: translateY(-5px);
}