#installAppBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #317EFB;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 25px;
    font-size: 12px;
    cursor: pointer;
    display: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    z-index: 1000;
}

#iosHelper {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: #fff3cd;
    border: 1px solid #ffeeba;
    padding: 15px;
    border-radius: 10px;
    max-width: 300px;
    font-size: 14px;
    z-index: 1000;
}

    #iosHelper img {
        max-width: 100%;
        margin-top: 10px;
    }