html, body {
    width: 100%;
    height: 100%;
    font-size: 16px;
}

.content {
    width: 100%;
    margin-top: 65px;
}

    .content > .top {
        width: 100%;
        height: 400px;
        overflow: hidden;
        position: relative;
    }

.bg {
    background: url('/Content/img/bottom_index (2).jpg') no-repeat;
    background-size: cover;
    background-position: center;
    width: 100%;
    height: 400px;
    line-height: 50px;
}

.bg-blur {
    float: left;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    -webkit-filter: blur(9px);
    -moz-filter: blur(9px);
    -o-filter: blur(9px);
    -ms-filter: blur(9px);
    filter: blur(7px);
}

.content {
    font-size: 50px;
    color: #555;
    font-weight: bold;
}

.font-content {
    position: absolute;
    width: 100%;
    height: 400px;
    margin: 20px;
    text-align: center;
    left: 48%;
    top: 70%;
    color: #fff;
    transform: translate3d(-50%,-50%,0);
    /* border:2px solid red; */
}

.about {
    width: 74%;
    margin: 0 auto;
    padding: 50px 0;
    font-size: 16px;
    font-weight: 400;
    line-height: 30px;
}

    .about > .item {
        margin-bottom: 90px;
    }

        .about > .item > h2 {
            margin-bottom: 100px;
            text-align: center;
            color: #1A89FA;
        }

.about-ul {
    overflow: hidden;
}

    .about-ul > li {
        display: block;
        overflow: hidden;
        float: left;
        width: 33.33%;
        text-align: center;
    }

        .about-ul > li > h2 {
            line-height: 100px;
        }

        .about-ul > li > img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

@media screen and (max-width: 788px) {    
    
    .about > .item > h2 {
        margin-bottom: 50px;
        text-align: center;
    }
    .about-ul > li > h2 {
        line-height: 50px;
    }
    .about-ul > li > img {
        width: 100%;
        height: 100px;
        object-fit: cover;
    }
}