*{
    margin: 0;
    padding: 0;
}

#n_nav_list {
    width: 100%;
    height: auto;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    margin-bottom: 4px;
}

#n_nav_list a {
    color: #333;
    text-decoration: none;
}

#n_nav_list .w80 {
    line-height: 60px;
    position: relative;
    overflow: initial;
    width: 80%;
    margin: 0 auto;
}

#n_nav_list .w80::before {
    display: block;
    content: "";
    width: 0;
    height: 0;
    clear: both;
}

#n_nav_list .w80::after {
    display: block;
    content: "";
    width: 0;
    height: 0;
    clear: both;
}

#n_nav_list .w80 .list {
    line-height: inherit;
    float: left;
}

#n_nav_list .w80 .list ul {
    line-height: inherit;
    overflow: hidden;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

#n_nav_list .w80 .list ul li {
    float: left;
    padding: 0 36px;
    line-height: inherit;
    height: 60px;
    box-sizing: border-box;
    position: relative;
    cursor: pointer;
}

#n_nav_list .w80 .list ul li::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #19b46e;
    transition: width .5s;
}

#n_nav_list .w80 .list ul li:hover::after {
    width: 100%;
}

#n_nav_list .w80 .list ul li a {
    font-size: 18px;
    line-height: inherit;
    font-weight: 400;
    text-align: left;
}

#n_nav_list .w80 .list ul li:hover a {
    font-size: 18px;
    color: #19b46e;
    line-height: inherit;
    font-weight: 400;
    text-align: left;
}

#n_nav_list .w80 .backhome {
    line-height: inherit;
    float: right;
}

#n_nav_list .active {
    border-bottom: 2px solid #19b46e;
}

@media (max-width: 768px) {
    #n_nav_list .w80 .backhome {
        display: none;
    }
}

@media (max-width: 1120px) and (min-width: 769px) {
    #n_nav_list .w80 {
        width: 100%;
    }

    #n_nav_list .w80 .list ul li {
        padding: 0 20px;
    }
}

@media (max-width: 510px) {
    #n_nav_list .w80 .list ul {
        justify-content: center;
    }
}