.footer_nav_box {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    height: 50px;
    z-index: 9999;
    background: #ffffff;
    align-items: center;
    border-top: 1px solid #eee;
}

.footer_nav_box .nav_item {
    flex: 1;
    border-top: 0;
}

.footer_nav_box .nav_item .pic_box {
    width: 20px;
    height: 20px;
    margin-left: auto;
    margin-right: auto;
}

.footer_nav_box .nav_item .title {
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
    font-size: 13px;
    color: #666666;
}

.footer_nav_box .nav_item.active .title {
    color: #1e50ae;
}

.footer_nav_box .nav_item .pic_box.icon1 {
    background: url("../image/icon_index.png") center no-repeat;

}

.footer_nav_box .nav_item.active .pic_box.icon1 {
    background: url("../image/icon_index_active.png") center no-repeat;

}

.footer_nav_box .nav_item .pic_box.icon2 {
    background: url("../image/icon_about_us.png") center no-repeat;

}

.footer_nav_box .nav_item.active .pic_box.icon2 {
    background: url("../image/icon_about_us_active.png") center no-repeat;

}

.footer_nav_box .nav_item .pic_box.icon3 {
    background: url("../image/icon_example.png") center no-repeat;

}

.footer_nav_box .nav_item.active .pic_box.icon3 {
    background: url("../image/icon_example_active.png") center no-repeat;

}

.footer_nav_box .nav_item .pic_box.icon4 {
    background: url("../image/icon_news.png") center no-repeat;

}

.footer_nav_box .nav_item.active .pic_box.icon4 {
    background: url("../image/icon_news_active.png") center no-repeat;

}

.footer_nav_box .nav_item .pic_box.icon5 {
    background: url("../image/icon_contact.png") center no-repeat;

}

.footer_nav_box .nav_item.active .pic_box.icon5 {
    background: url("../image/icon_contact_active.png") center no-repeat;

}


@media screen and (min-width: 1025px) {
    .footer_nav_box {
        display: none;
    }
}