.d-app-main {
    width: 100%;
   height:40rem;
    background: linear-gradient(to right, #6086FF, #6FABFF, #7BBDFF);
    padding-top:10%;
    padding-bottom:5%;
}
.d-app-main .title {
    
        line-height:2rem;
        font-weight:bold;
        margin:0 auto;
        width:100%;
        font-size:2rem;
        text-align:center;
        color:#fff;
    
   }
    .d-app-main .ct {
        width: 20rem;
        background: rgba(255,255,255,0.14);
        color: rgba(255,255,255,0.8);
        font-size: 0.9rem;
        line-height: 2rem;
        text-align: center;
        border-radius: 2rem;
        margin: 0 auto;
        margin-top: 2rem;
    }
.app_code {
    margin-top: 3rem;
    width:400px;
    margin: 0 auto;
    margin-top:3rem;
    margin-bottom:3rem;
}
.app_code img {
    display:block;
    border-radius:0.5rem;
     margin:0 auto;
     max-width:144px;
    }
    .app_code .item {
    float:left;
    width:200px;
    
    }
        .app_code .item span {
            font-size: 1rem;
            color: #fff;
            display: block;
            width: 120px;
            margin: 0 auto;
            padding-left: 0.4rem;
            padding-right: 0.4rem;
            font-size: 1rem;
            height: 2rem;
            border-radius: 0.3rem;
            line-height: 2rem;
            background: linear-gradient( 90deg, #6086FF 0%, #6FABFF 50%, #7BBDFF 100%);
            margin-top: 2rem;
        }
.fright {
    color:#fff;
    float: right;
    font-size:1.3rem;
}
.k {
    margin-right:0.2rem;
}