.back{
    display: inline-block;
    float: right;
    height: 30px;
    line-height: 30px;
    background: rgba(255,255,255,0.5);
    padding: 0 15px;
    margin: 5px 0;
    transition: all 0.3s;
}
.back:hover{
    background: rgba(255,255,255,0.3);
}
.details{
    display: flex;
    flex-wrap: nowrap;
    flex-direction: row;
    justify-content: space-between;
}
.pro-show-thumb{
    display: flex;
    width: 550px;
    height: 550px;
    flex-shrink: 0;
    justify-content: center;
    align-items: center;
    border: 1px solid #e5e5e5;
}
.pro-show-thumb img{max-width: 100%}
.pro-show-center{
    width: 600px;
    height: 550px;
    overflow: hidden;
}
.pro-show-center h2{
    font-size: 24px;
    font-weight: 500;
    line-height: 40px;
    color: #4374b0;
    padding-bottom: 10px;
    margin-bottom: 15px;
    border-bottom: 1px solid #dbdbdb;
}
.pro-show-center p{
    font-size: 14px;
    line-height: 30px;
}
.pro-show-contents{
    padding: 30px 0 50px 0;
}
.pro-show-text{
    font-size: 13px;
    color: #666;
    line-height: 24px;
    overflow: hidden;
    font-family: 微软雅黑,宋体,Arial,Helvetica,sans-serif;
}
.hot{
    height: 343px;
    width: 1200px;
    margin: 20px auto 0 auto;
    border-radius: 4px;
    background: #fca834;
    background: -webkit-linear-gradient(left, rgb(252,182,54) , rgb(251,146,49));
    background: -o-linear-gradient(right, rgb(252,182,54) , rgb(251,146,49));
    background: -moz-linear-gradient(right,rgb(252,182,54) , rgb(251,146,49));
    background: linear-gradient(to right, rgb(252,182,54) , rgb(251,146,49));
}
.hot .hottit {
    height: 60px;
    padding: 0 10px 0 20px;
}
.hot .hottit span {
    display: inline-block;
    padding-right: 18px;
    font-size: 24px;
    line-height: 60px;
    color: #ffffff;
}
.hot .hottit font {
    display: inline-block;
    font-size: 14px;
    line-height: 60px;
    color: #ffffff;
}
.hot .hotlisw {
    height: 225px;
    margin: 0 10px;
    background: #ffffff;
    overflow: hidden;
}
.hot .hotlisw .hotlis {
    float: left;
    height: 225px;
    width: 236px;
    position: relative;
}
.hot .hotlisw .hotlis:hover img{
    transition: all .5s;
    transform: scale(1.1,1.1)
}
.hot .hotlisw .hotlis .hotlisimg {
    height: 180px;
    padding: 5px 28px 0 28px;
    overflow: hidden;
    line-height: 180px;
    text-align: center;
}
.hot .hotlisw .hotlis .hotlisimg img {
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
    transition: all .5s;
}
.hot .hotlisw .hotlis .hotlitit {
    height: 40px;
    padding: 0 15px;
    font-size: 12px;
    line-height: 40px;
    color: #1a1a1a;
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.open-qq{
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
    height: 40px;
    line-height: 40px;
    font-size: 14px;
    text-align: center;
    color: #ffffff;
    background: rgba(67,116,176,0.9);
    border-radius: 4px;
}
.open-qq:hover{
    color: #ffffff;
}
.open-qq i{
    display: inline-block;
    width: 32px;
    height: 40px;
    background: url(../images/zxzx.png) no-repeat center center;
}