.header {
    width: 100%;
    height: 500px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("//cdn.quickbass.com/static/www/img/product/bannerBk.png");
}

.header div {
    width: 1200px;
    margin: auto;
    overflow: hidden;
}

.header div .header-logo {
    margin-top: 61px;
}

.header div p {
    font-size: 24px;
    color: #FFFFFF;
    margin-top: 23px;
}

.header div small {
    color: #FFFFFF;
    font-size: 20px;
    display: inline-block;
    margin-top: 16px;
}

.header div .QR-code {
    width:186px;
    height:186px;
    margin-top: 35px;
}

.center {
    width: 100%;
}

.center div {
    width: 1200px;
    margin: auto;
    overflow: hidden;
}

.center div .center-title {
    width: 100%;
    margin-top: 49px;
    text-align: center;
}

.center div .center-title h2 {
    font-size: 36px;
    color: #333333;
}

.center div .center-title small {
    font-size: 20px;
    color: #999999;
    display: block;
}

.center div .center-title span {
    color: #F0F0F0;
}

.center div .center-content {
    width: 100%;
    padding-bottom: 10px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.center div .center-content div {
    width: 280px;
    height: 400px;
    margin-top: 27px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 6px 8px 0 rgba(212,212,212,0.5);
}

.center div .center-content div img {
    width: 178px;
    height: 178px;
    margin: auto;
    margin-top: 40px;
}

.center div .center-content div h3 {
    font-size: 28px;
    color: #333333;
    margin-top: 37px;
}

.center div .center-content div p {
    width: 220px;
    margin: auto;
    margin-top: 10px;
    color: #555555;
    font-size: 18px;
    text-align: left;
}

.center div .center-box {
    width: 1200px;
    height: 807px;
    margin: auto;
}

.center div .center-box .left,
.center div .center-box .right {
    height: 807px;
}

.center div .center-box .left {
    width: 425px;
    float: left;
}

.center div .center-box .right {
    width: 745px;
    float: right;
}

.center div .center-box .left div {
    width: 425px;
    height: 807px;
    position: relative;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("//cdn.quickbass.com/static/www/img/index/iPhone8.png");
}

.center div .center-box .left div img {
    position: absolute;
    left: 0;
    right: 0;
    top: 90px;
    margin: auto;
}

.center div .center-box .right h3 {
    font-size: 40px;
    color: #333333;
    margin-top: 80px;
}

.center div .center-box .right p {
    font-size: 20px;
    color: #333333;
    margin-top: 20px;
}

.center div .center-box .right ul {
    width: 640px;
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.center div .center-box .right ul li {
    width: 130px;
    margin-top: 34px;
    margin-left: 30px;
    text-align: center;
}

.center div .center-box .right ul li div {
    width: 130px;
    height: 130px;
    border-radius: 100%;
    background-color: #FFFFFF;
    box-shadow: 0 2px 4px 0 rgba(190,190,190,0.5)
}

.center div .center-box .right ul li img {
    width: 80px;
    height: 80px;
    margin: auto;
    margin-top: 25px;
}

/*.center div .center-box .right ul li img:hover {*/
    /*-webkit-filter: none;*/
    /*-moz-filter: none;*/
    /*-ms-filter: none;*/
    /*-o-filter: none;*/
    /*filter: none;*/
    /*filter: none;*/
/*}*/

.gray-img {
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: grayscale(100%);
    filter: gray;
}



.center div .center-box .right ul li h5 {
    font-size: 20px;
    color: #999999;
    margin-top: 16px;
    font-weight: normal;
}

.center div .center-box .right a {
    width: 320px;
    height: 60px;
    display: inline-block;
    border-radius: 10px ;
    border: 1px solid #35C5F8;
    color: #35C5F8;
    text-align: center;
    line-height: 60px;
    font-size: 24px;
    margin-top: 46px;
}


.cooperation-container {
    width: 100%;
    height: 429px;
    margin-top: 105px;
    text-align: center;
    overflow: hidden;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-image: url("//cdn.quickbass.com/static/www/img/product/cooperation.png");
}

.cooperation-container h2 {
    color: #FFFFFF;
    font-size: 36px;
    margin-top: 48px;
}

.cooperation-container h3 {
    color: #FFFFFF;
    font-size: 24px;
    font-weight: normal;
    margin-top: 18px;
}

.cooperation-container span {
    color: #FFFFFF;
}

.cooperation {
    width: 850px;
    height: 200px;
    margin: auto;
    margin-top: 20px;
}

.cooperation li {
    width: 150px;
    float: left;
    margin-left: 100px;
    position: relative;
}

.cooperation li img {
    width: 150px;
    height: 150px;
}

.cooperation li p {
    font-size: 22px;
    color: #FFFFFF;
    margin-top: 16px;
}

.cooperation li i {
    color: #FFFFFF;
    position: absolute;
    right: -60px;
    top: 60px;
    font-size: 23px;
}