body {
    padding: 0px;
    margin: 0px;
    background: #EDF4F6;
  }
   
    .main_a {
        overflow: hidden;
        width: 1400px;
        height: 529px;
        background: #FFFFFF;
        opacity: 1;
        border-radius: 0px;
        margin: 0 auto;
        position: relative;
    }

   .main_a-di{
    margin-bottom: 100px;
   }

    /* 标题样式 */
    .mian-a-a {
        text-align: center;
        width: 646px;
        height: 50px;
        opacity: 1;
        margin: 0 auto;
    margin-top: 140px;
    margin-bottom: 60px;
        /* background: #FFFFFF; */
    }
    .mian-a-a-1{
        width: 682px;
        margin-top: 100px;
    }
    .mian-a-a-2{
        width: 790px;
        margin-top: 100px;
    }
    .mian-a-a-3{
        width: 646px;
        margin-top: 100px;
    }
    .mian-a-a-4{
        width: 826px;
        margin-top: 100px;
    }
    .mian-a-a-5{
        width: 758px;
        margin-top: 100px;
    }
    .mian-span-a {
    height: 28px;
        width: 159px;
        float: left;
        margin-top: 11px;
    }
    
    .mian-span-b {
        height: 28px;
        width: 159px;
        float: left;
        margin-top: 11px;
    }
    
    .mian-span-d {
        width: 338px;
        height: 50px;
        font-size: 36px;
        font-family: PingFang SC;
        font-weight: bold;
        line-height: 0px;
        color: #333333;
        opacity: 1;
    
    }
    .mian-p-a {
        margin: 0 20px;
        width: auto;
        height: 50px;
        font-size: 40px;
        float: left;
        display: inline-block;
        text-align: center;
        line-height: 40px;
       
    }
    
    .mian-span-c {
        margin-top: 30px;
        display: inline-block;
        text-align: center;
        width: 152px;
        height: 50px;
        font-size: 36px;
        font-family: PingFang SC;
        font-weight: bold;
        line-height: 0px;
        color: #333333;
        opacity: 1;
    }
     /* 标题样式结束 */
    
    .main_a .title {
        position: absolute;
        float: left;
        width: 117px;
        left: 0px;
        top: 0px;
    }

    .title h3 {
        vertical-align: middle;
        width: 100px;
        height: 40px;
        font-size: 28px;
        font-family: PingFang SC-Bold, PingFang SC;
        font-weight: bold;
        color: #333333;
        line-height: 0px;
        margin: 51px 0 0 100px; 
    }

    .title i {
        vertical-align: middle;
        display: inline-block;
        width: 39px;
        height: 35px;
        opacity: 1;
    margin-top: -2px;
        background-repeat: no-repeat;
        background-size: cover;
        background-image: url("../img/组\ 39.png");
    }

    .p-1 {
        position: absolute;
        text-align: left;
        float: left;
        left: 100px;
        top: 116px;
        width: 478px;
        height: 277px;
        font-size: 18px;
        font-family: PingFang SC;
        font-weight: 500;
        line-height: 36px;
        color: #333333;
        opacity: 1;
text-align: justify;
    }
#p-1-a{
    height: 244px;
    top: 115px;
    text-align: justify;
}
    .main_a a {
   position: absolute;
        display: inline-block;
        text-align: center;
        background-color: #488EFF;
        width: 106px;
        height: 34px;
        font-size: 20px;
font-family: Source Han Sans CN-Medium, Source Han Sans CN;
font-weight: 500;
color: #FFFFFF;
line-height: 32px;
        text-decoration-line: none;
        border-radius: 4px;
        box-shadow: 0px 6px 12px rgb(72 142 255 / 40%);
        top: 410px;
        left: 100px;
    }



    .main_a .img{
        position: absolute;
        width: 626px;
        height: 371px;
        top: 108px;
        left: 674px;
    }

    .main_b{
        overflow: hidden;
        width: 1400px;
        height: 529px;

        background: #FFFFFF;
        opacity: 1;
        border-radius: 0px;
        margin: 0 auto;
        position: relative;
    }
    .main_b .title {
        position: absolute;
        float: left;
        width: 117px;
        left: 0px;
        top: 0px;
    }

    .main_b .title h3 {
        vertical-align: middle;
        width: 100px;
        height: 40px;
        font-size: 28px;
        font-family: PingFang SC-Bold, PingFang SC;
        font-weight: bold;
        color: #333333;
        line-height: 0px;
        margin: 51px 0 0 100px; 
    }

    .main_b .title i {
        vertical-align: middle;
        display: inline-block;
        width: 39px;
        height: 35px;
        opacity: 1;
    margin-top: -2px;
        background-repeat: no-repeat;
        background-size: cover;
        background-image: url("../img/组\ 39.png");
    }

    .main_b .p-1 {
        position: absolute;
        float: left;
        left: 865px;
        top: 104px;
        width: 435px;
        height: 277px;
        font-size: 18px;
        font-family: PingFang SC;
        font-weight: 500;
        line-height: 36px;
        color: #333333;
        opacity: 1

    }

    .main_b a {
        position: absolute;
        top: 433px;
      left: 1194px;
        display: inline-block;
        text-align: center;
        background-color: #488EFF;
        width: 106px;
        height: 34px;
        font-size: 20px;
font-family: Source Han Sans CN-Medium, Source Han Sans CN;
font-weight: 500;
color: #FFFFFF;
line-height: 32px;
        text-decoration-line: none;
        border-radius: 4px;
        box-shadow: 0px 6px 12px rgb(72 142 255 / 40%);
        
    }
#main_b-1-a{
    top: 411px;
}
#main_b-1-p{
    top: 411px;
}


    .main_b .img{
        position: absolute;
        width: 626px;
        height: 371px;
        top: 108px;
        left: 100px;
    }

#f7{margin-bottom: 100px;}


    .daohanglan {
        width: 150px;
        height: 281px;
        background: #f2f2f2;
        position: fixed;
        border: 2px dashed #111212;
        top: 40%;
        bottom: 50%;
        right: 0px;

        background-color: rgba(255, 255, 255, 0.2);
    }

    .daohanglan li {
        text-align: center;
        padding: 10px 0px;
    }

    .daohanglan li:hover {
        background-color: #337fff;
    }

    .daohanglan a {
        color: #111212;
    }