.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 44px;
    background-color: #537ada;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 15px;
    box-shadow: 0 1px 5px rgba(0,0,0,0.1);
    z-index: 100;
}

.back-btn {
    color: white;
    height:26px;
}
.back-btn img{
    height: 26px;
    display:block;
}
    .title {
    font-size: 17px;
    font-weight: 500;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width:60%;
    text-align:center;
}

.menu-btn {
    font-size: 16px;
    color: white;
    height: 26px;
}

.menu-overlay {
    position: fixed;
    top: 44px;
    right: 15px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    overflow: hidden;
    transform-origin: top right;
    transform: scale(0);
    opacity: 0;
    transition: all 0.3s ease;
    z-index:999;
}

    .menu-overlay.show {
        transform: scale(1);
        opacity: 1;
    }

.menu-item {
    padding: 12px 20px;
    font-size: 0.4rem;
    color: #333;
    white-space: nowrap;
    border-bottom: 1px solid #f5f5f5;
}
    .menu-item img {
        height: 0.6rem;
        position: relative;
        top: -2px;
        padding-right: 0.4rem;
        display: block;
        float: left;
    }

#menuimg {
    height: 0.75rem!important;
    right: 2px;
    padding-right:0.26rem;
}


.menu-item:last-child {
    border-bottom: none;
}