.banner {
    width: 100%;
    position: relative;
}

.banner img {
    display: block;
    width: 100%;
}

.main .container {
    width: 1400px;
}
.main .content ul {
    
    display: -webkit-flex; /* Safari */
    display: flex;
     justify-content:space-between;
     flex-wrap:wrap;
}
.main .content ul li {
    width: 23%;
    margin: 1%;
    text-align: center;
    padding-bottom: 20px;
    box-shadow: 1px 1px 2px 1px rgba(0, 0, 0, 0.3);
    margin-top: 20px;
   
}
.main .content ul li img {
    width: 100%;
}

.main .content ul li p{
    margin-top: 20px;
    color: #000;
    line-height: 27px;
    font-family: "微软雅黑";
    font-weight: 400;
    color: #343c49;
    /* border-bottom: 1px solid #ccc; */
  
}




@media screen and (max-width: 1450px) {
    .main .container {
        width: 1200px;
    }
}

@media screen and (max-width: 1250px) {
    .main .container {
        width: 1000px;
    }
}

@media screen and (max-width: 1050px) {
    .main {
        background-image: inherit;
        padding-top: 20px;
    }

    .main .container {
        width: 100%;
        box-sizing: border-box;
        padding: 0 10px;
        background-color: #ffffff;
    }
}

@media screen and (max-width: 800px) {
    .main .content ul li {
        width: 48%;
        float: left;
    }
 
}