* {
    margin: 0;
    padding: 0;
}

.bg {
    overflow: hidden;
    left: 0;  
    top: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: -5;
    zoom: 1;
    background-attachment: fixed;
    background: center 0;
}

.bg img {
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    position: fixed;
}

.container {
    position: absolute;padding-top:100px;
    top: 50%;
    left: 50%;
    width: 1300px;
    height: 546px;
    margin: -273px 0 0 -650px;
}

.logo {
    display: block;
    margin: 0 auto;
}

.item {
    padding-top: 40px;
    font-size: 0;
    -webkit-text-size-adjust: none;
    text-align: center;
}

.item-list {
    position: relative;
    display: inline-block;
    width: 173px;
    height: 173px;
    margin: 0 70px;
}

.item-list a {
    position: relative;
    z-index: 99;
    display: block;
    width: 173px;
    height: 65px;
    padding-top: 106px;
    text-align: center;
    line-height: 16px;
    font-family: 'SourceHanSansCN-Medium';
    font-size: 16px;
    color: #ffffff;
}

.list1 a {
    background: url('../images/icon1.png') center 38px no-repeat;
}

.list2 a {
    background: url('../images/icon2.png') center 38px no-repeat;
}

.list3 a {
    background: url('../images/icon3.png') center 38px no-repeat;
}

.list4 a {
    background: url('../images/icon4.png') center 38px no-repeat;
}
 .list5 a {
    background: url('../images/icon5.png') center 38px no-repeat;
}

.rotate360 {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 173px;
    height: 173px;
}

.item-list:hover .rotate360 {
    animation: rotate 5s linear infinite;
    -webkit-animation: rotate 5s linear infinite;
}

@keyframes rotate {
    0% {
        transform: rotate(0);
    }

    100% {
        transform: rotate(360deg);
    }
}

@-webkit-keyframes rotate {
    0% {
        -webkit-transform: rotate(0);
    }

    100% {
        -webkit-transform: rotate(360deg);
    }
}

.link {
    display: none;
    padding-top: 80px;
    font-size: 0;
    -webkit-text-size-adjust: none;
    text-align: center;
}

.link-list {
    display: inline-block;
    width: 369px;
    height: 64px;
    margin: 10px 12px 0;
    box-shadow: 7px 6px 32px 0px rgba(30, 38, 70, 0.19);
}

.link-list img {
    width: 369px;
    height: 64px;
}