footer {
    display: flex;
    justify-content: space-around;
    padding: 10px 0 10px 0;
    background-color: #fff;
    position: sticky;
    padding-bottom: 10px;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
}

footer div {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 18px;
    color: #888;
}

footer .active {
    color: #ff6000;
}

.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #fff;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
}

.tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tab-item img {
    width: 40px;
    height: 40px;
    margin-bottom: 5px;
}

.tab-item .tab_icon {
    font-size: 18px;
    margin-bottom: 5px;
}

.tab-item span {
    font-size: 18px;
    color: #888;
}

.tab-item.active span {
    color: #ff4400;
}