.section{
    width: 100%;
    position: relative;
}
.section>div{
    width: 100%;
    height: 368px;
    position: absolute;
    top: -100px;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}
.section_title{
    width: 100%;
    height: 150px;
    line-height: 150px;
    text-align: center;
    word-wrap: break-word;
    text-shadow: 0px 5px 5px rgb(0 0 0 / 65%);
    font-family: '华文中宋 Bold', '华文中宋 Regular', '华文中宋';
    font-weight: 700;
    font-style: normal;
    font-size: 74px;
    color: #FFFFFF;
    margin-bottom: 50px;
}
.section_list{
    width: 100%;
    height: 178px;
    display: inline-block;
    text-align: center;
    position: relative;
}
.section_list>div{
    width: 1200px;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}
.section_list>div>div{
    width: 178px;
    height: 178px;
    background: red;
    border: none;
    border-radius: 4px; 
    cursor: pointer;
    float: left;
    margin-left: 150px;
    
}
.section_list>div>div img{
    width: 78px;
    height: 78px;
    margin-top: 25px;
    margin-bottom: 25px;
}
.section_list_name{
    width: 100%;
    font-family: 'Arial Normal', 'Arial';
    font-weight: 400;
    font-style: normal;
    font-size: 26px;
    color: #FFFFFF;
    text-align: center;
}
.back{
    width: 107px;
    position: fixed;
    bottom: 250px;
    right: 50px;
}
.back img{
    width: 100%;
    height: 100%;
    
}
.back_top{
    width: 100%;
    height: 107px;
    position: relative;
    margin-bottom: 30px;
    cursor: pointer;
}
.back_top>div{
    width: 100%;
    height: 107px;
    color: #fdfdfd;
    font-size: 20px;
    text-align: center;
    line-height: 107px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    cursor: pointer;
}
.back_bottom{
    width: 100%;
    height: 107px;
    position: relative;
    cursor: pointer;
}
.back_bottom>div{
    width: 100%;
    height: 107px;
    color: #fdfdfd;
    font-size: 20px;
    text-align: center;
    line-height: 107px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    cursor: pointer;
}
/* 背景 */
.bg{
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #3b64ce;
    z-index: -1;
}
.bg .bg_left{
    width: 291px;
    height: 773px;
    position: absolute;
    left: 0;
    bottom: 0;
}
.bg .bg_right{
    width: 381px;
    height: 600px;
    position: absolute;
    right: 0;
    bottom: 0;
}