.nepage {
    display: flex;
    flex-direction: column;
    height: 100vh; /*100vh 自适应 calc(100% + 68px);*/
     
}

    .nepage .header {
        padding: 10px;
        height: 30px;
        background-color: white;
        border-bottom: 1px solid #cacaca;
    }

    .nepage .mainpad {
        flex: 1;
        height: 100vh;
    }

    .nepage .leftpad {
        height: 100vh;
        min-height:768px;
    }
        .nepage .footer {
        width: 100%;
        height: 23px;
        text-align: center;
        background-color: black;
        color: white;
        font-size: 0.8rem;
        padding-top: 8px;
        position: fixed;
        bottom: calc(0px);
        left: 0px;
        z-index: 99999;
    }