/* 底部导航 */
.nav-bottom {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    height: 69px;
    box-sizing: border-box;
    border-top: 0.5px solid #dddddd;
    background: #ffffff;
}

@media (max-width: 768px) {
    .nav-bottom {
        height: 53.5px;
    }
}

.nav-bottom-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex: 1;
    height: 100%;
    text-decoration: none;
    font-size: 12px;
    color: #7d7d7d;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-bottom-item {
        font-size: 10px;
    }
}

.nav-bottom-item:hover {
    background: rgba(125, 125, 125, 0.2);
}

.nav-bottom-item.active {
    background: #ffffff;
    font-weight: bold;
    color: #1678ff;
}

.nav-bottom-icon {
    width: 21.5px;
    height: 21.5px;
    margin-bottom: 5px;
}

@media (max-width: 768px) {
    .nav-bottom-icon {
        width: 18px;
        height: 18px;
    }
}