footer {
    background-color: white;
    padding: 0.2rem 0;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    border-top: 1px solid #e0e0e0;
}

.tabbar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 50px;
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #999;
    font-size: 12px;
}

.tab-icon, .tab-icon-active {
    width: 24px;
    height: 24px;
    margin-bottom: 2px;
}

.tab-icon-active {
    display: none;
}

.tab-item.active {
    color: #1E90FF;
}

.tab-item.active .tab-icon {
    display: none;
}

.tab-item.active .tab-icon-active {
    display: inline;
}