.banner{
    width: 100%;
    height: 350px;
    margin-top: 60px;
    background: url(../images/about_banner.jpg) no-repeat center;
}
.content{
    width: 100%;
    height: auto;
    overflow: hidden;
}
.top{
    width: 410px;
    height: auto;
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    margin: 50px auto 0;
    font-size: 48px;
    font-weight: bold;
    color: #333333;
    line-height: 58px;
}
.top .top-line{
    width: 80px;
    height: 2px;
    background: #333333;
    margin-top: 28px;
}
.content .con-ul{
    width: 100%;
    height: 350px;
    margin-top: 40px;
    display: flex;
    justify-content: space-between;
}
.con-ul .con-li{
    width: 350px;
    height: 350px;
    border: 1px solid #eeeeee;
    border-radius: 10px;
    overflow: hidden;
    box-sizing: border-box;
    cursor:pointer;
}
.con-li:hover{
    background: #e5edf6;
    border: 1px solid #0050aa;
}
.con-li .con-img{
    width: 200px;
    height: 200px;
    margin: 40px auto 0;
}
.con-li .con-img1{
    width: 200px;
    height: 200px;
    margin: 40px auto 0;
    display: none;
}

.con-li .con-text{
    width: 100%;
    height: auto;
    overflow: hidden;
    font-size: 30px;
    color: #333333;
    text-align: center;
    line-height: 40px;
    margin-top: 40px;
}
.con-li:hover .con-text{
    color: #0050aa;
}
.con-li:hover .con-img{
    display: none;
}
.con-li:hover .con-img1{
    display: block;
}