.contentBox{
    width: 1200px;
    margin: auto;
    padding: 0;
}

/*二级菜单*/
.contentLeft_a{
    width: 175px;
    height:300px;
}
.leftNavBox{
    width: 174px;
    /*height: 220px;*/
    /*background-color: #195eed;*/
    /*border-radius: 4px;*/
}
.leftNavBox ul{
    width: 150px;
    /*height: 156px;*/
    /*border: 5px solid #fff;*/
    /*margin: 7px 7px 0 7px;*/
    /*background: #195eed;*/
    /*border-radius: 4px;*/
}
.leftNavBox ul li{
    width: 100%;
    height: 48px;
    line-height: 48px;
    font-size: 14px;
    text-align: center;
    margin-top: 3px;
    /*background: #195eed;*/
    cursor: pointer;
    border-radius: 4px;
}
.leftNavBox ul li:hover{
    font-weight: 600;
}
.leftNavBox ul .leftActive{
    /*background: #195eed;*/
    /*color: #fff;*/
    font-weight: bold;
    color: #195eed;
}
.leftNavBox .backTop{
    height: 48px;
    line-height: 48px;
    color: #333;
    font-size: 14px;
    text-align: center;
    cursor: pointer;
}
.leftNavBox .backTop:hover{
    text-decoration: underline;
}

/*contentRight*/
.contentRight{
    padding:0 30px;
    margin-left: 40px;
    background: #fff;
    width: 920px;
    min-height: 600px;
}
.coop-block {
    margin-top: 30px;
    margin-bottom: 60px;
}

.coop-block .cat-name {
    font-size: 14px;
}

.coop-block .en {
    color: #999;
    font-size: 14px;
}

.coop-item {
    float: left;
    width: 180px;
    height: 100px;
    margin-right: 66px;
    margin-top: 45px;
    background: #fff;
    box-shadow: 0 2px 4px 0 rgba(0,0,0,.1);
    position: relative;
}
.coop-item img {
    width: 180px;
    height: 100px;
}
.coop-item:nth-child(4n) {
    margin-right: 0;
}

.coop-item .coop-desc {
    display: none;
    position: absolute;
    top: 50%;
    left: 0;
    width: 140px;
    background-color: #fff;
    padding: 20px;
    border-radius: 6px;
    box-shadow: 0 4px 4px #aaa;
    z-index: 999999;
}
.coop-item .coop-desc h2 {
    font-size: 14px;
    margin-bottom: 16px;
}
.coop-item:hover .coop-desc  {
    display: block;
}
.coop-default-img {
    text-align: center;
    font-size: 16px;
    font-weight: bold;
    padding: 0 10px;
    display: flex;
    height: 100px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}