html,
body {
    font: 400 14px 'Open Sans', sans-serif;
    line-height: 20px;
    color: #323232;
}

.doc-top {
    padding: 80px 0;
}

.down-top {
    background: url(../images/down/down-top.png) #f4f4f4 no-repeat;
    padding-top: 18%;
    background-size: contain;
}

.down-container {
    width: 1170px;
    padding: 80px 0;
    margin: 0 auto;
}

.down-line {
    overflow: hidden;
}

.down-left,
.down-right {
    float: left;
}

.down-left {
    width: 340px;
    padding-top: 130px;
}

.down-line+.down-line .down-left {
    padding-top: 95px;
}

.down-right {
    width: calc(100% - 340px);
    display: flex;
    justify-content: space-between;
    padding-left: 20px;
    flex-wrap: wrap;
}

.down-item {
    display: inline-block;
    width: 160px;
    height: 160px;
    float: left;
}

.down-list {
    min-width: 350px;
    margin-top: 80px;
}

.down-list>p {
    margin: 0 0 30px;
}

.down-list>p>span:first-child {
    font-size: 18px;
    color: #323232;
    font-weight: 600;
}

.down-list>p>span:nth-child(2) {
    font-size: 12px;
    color: #d3d3d3;
    margin-left: 24px;
}

.down-item+.down-item {
    margin-left: 20px;
}

.down-hover,
.down-normal {
    background: #f8f8f8;
    width: 160px;
    height: 160px;
    text-align: center;
    padding: 20px 20px;
}

.down-hover {
    display: none;
}

.down-normal {
    background: #fff;
    border: 1px solid #d6d6d6;
}

.down-hover a {
    color: #e94620;
    text-decoration: none;
}

.down-normal span {
    display: block;
    margin-top: 15px;
    color: #888888;
}

.down-hover span {
    display: block;
    margin-top: 5px;
}

.down-line-two .down-normal span {
    margin-top: 5px;
}

.phone-download {
    display: inline-block;
    background: #fff;
    margin-bottom: 10px;
}

.phone-download img {
    width: 88px;
}

.down-new-box{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.down-new-item{
    width: 390px;
    padding: 20px;
}

.down-new-title{
    height: 20px;
    line-height: 20px;
}

.down-new-title>span:first-child{
    font-size: 16px;
    font-family: Microsoft YaHei, Microsoft YaHei-Bold;
    font-weight: 700;
    text-align: left;
    color: #000000;
    letter-spacing: 0.16px;
}
.down-new-title>span:last-child{
    font-size: 12px;
    font-family: Microsoft YaHei, Microsoft YaHei-Regular;
    font-weight: 400;
    text-align: left;
    color: #cccccc;
    line-height: 20px;
    letter-spacing: 0.12px;
    margin-left: 15px;
}

.down-new-center{
    width: 350px;
    height: 428px;
    background: #ffffff;
    margin-top: 28px; 
    padding:38px 39px;
    box-sizing: border-box;
    border: 1px solid #dddddd;
    border-radius: 10px;
}

.down-new-center:hover{
    box-shadow: 0px 0px 20px 0px rgba(0,0,0,0.15);
    border: 1px solid transparent;
}

.down-new-center>p:first-child{
    font-size: 16px;
    font-family: Microsoft YaHei, Microsoft YaHei-Bold;
    font-weight: 700;
    text-align: center;
    color: #000000;
    line-height: 20px;
    letter-spacing: 0.16px;
    margin: 0;
}

.down-new-center>p:nth-child(2){
    font-size: 14px;
    font-family: Microsoft YaHei, Microsoft YaHei-Regular;
    font-weight: 400;
    text-align: center;
    color: #cccccc;
    line-height: 20px;
    letter-spacing: 0.14px;
    margin-top: 5px;
    height: 20px;
}

.down-img-box,.down-phone-box{
    height: 220px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 18px;
    position: relative;
}

.down-phone-box{
    height: 270px;
    position: relative;
}

.down-img-box>img{
    max-width: 100%;
    max-height: 100%;
}

.down-img-box>div,.down-phone-item>div{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    background: #fff;
    width: 80px;
    height: 80px;
    text-align: center;
    overflow: hidden;
}

.down-img-box>div>img,.down-phone-item>div>img{
    margin-top: 10px;
    width: 60px;
}

.down-btn{
   width: 100%;
   height: 40px;
   background-color: #fff;
   border: 1px solid #f76d2b;
   outline: none;
   box-sizing: border-box;
   color: #f76d2b;
   font-size: 13px;
   font-family: Microsoft YaHei, Microsoft YaHei-Regular;
   letter-spacing: 0.13px;
   margin-top: 30px;
   border-radius: 6px;
}

.down-new-center:hover .down-btn{
    background: #f76d2b;
    color: #ffffff;
}

.down-phone-item{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .5s;
    background-color: #fff;
}


.down-new-center:hover .down-phone-item{
    transform: rotateY(180deg);
}

.down-phone-box .down-phone-item:first-child{
    backface-visibility: hidden;
}

.down-phone-box .down-phone-item:last-child img{
   transform: rotateY(180deg);
}

.down-phone-item>img{
    max-width: 100%;
}




@media screen and (max-width:1200px) {
    .down-container {
        width: 710px;
    }
    .down-right {
        width: 370px;
    }
}

@media screen and (max-width:780px) {
    .down-container {
        width: 90%;
    }
    .down-left,
    .down-right {
        float: none;
        margin: 0 auto;
    }
    .down-new-item{
        width: 100%;
    }
    .down-new-center{
        padding: 18px 20px;
        width: 100%;
        height: 388px; 
    }

}