.nav {
    position: fixed;
    top: 0;
    z-index: 4;
    width: 100%;
    background-color: transparent;
}
.navbar{
    position: relative
}
.back-icon, .home-icon{
    width: 28px;
    height: 100%;
    position: absolute;    
    transform: translateY(-50%);    
    top: 50%;    
    display: flex;
    }
.back-icon{    
    left: 0px;
}
.home-icon{    
    left: 44px
}
.back-icon image{    
    width: 19rpx;    
    height: 34rpx;    
    margin: auto;
}
.home-icon image{    
    width: 20px;    
    height: 20px;    
    margin: auto;
}
.nav-title, .nav-icon{    
    position: absolute;    
    transform: translate(-50%, -50%);    
    left: 50%;    
    top: 50%;    
    font-size: 0;    
    font-weight: bold;
}