main{
    height: 1100px;
}
.main-content li{
    width: 48.5%;
    height: 200px;
    float: left;
    margin: 0 3% 3% 0;
    position: relative;
    background: url(../image/service2.jpg) no-repeat center center/cover;
}
.main-content li:nth-child(2n){
    margin-right: 0;
}
.main-content li a{
    color:#fff;
}
.main-item-content1{
    width: 100%;
    position: absolute;
    left: 0;
    bottom: 0;
    background: url(../image/bg5.png) no-repeat center bottom;
    padding: 15% 0 4%;
    font-size: 16px;
    line-height: 1.4;
}
.main-item-text1{
    font-size: 22px;
    padding:0 5%;
}
.main-item-text2{
    font-size: 16px;
    padding:0 5%;
}
.main-item-content2{
    display: none;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    position: absolute;
    left: 0;
    top: 0;
    line-height: 1.4;
    color: #fff;
}
.main-item-content2 .main-item-text1{
    margin-top:40px;
}
.main-item-more{
    width: 112px;
    height: 35px;
    line-height: 35px;
    color: #fff;
    font-size:16px;
    border-radius: 18px;
    background: #84a8ee;
    text-align: center;
    margin: 30px 0 0 5%;
}
.main-content li a:hover .main-item-content2{
    display: block;
}
.main-content li a:hover  .main-item-content1{
    display: none;
}