#topNav {
    width: 100%;
    overflow: hidden;
    font: 16px/32px hiragino sans gb, microsoft yahei, simsun;
    border-bottom: 1px solid #f8f8f8;
    display: none;
    margin-top: 20px;
    max-width: 1400px;
}

#topNav .swiper-slide {
    letter-spacing: 2px;
    width: max-content;
    text-align: center;
    margin: 0 45px;
    font-size: 15px;
    white-space: nowrap;
}

#topNav a {
    color: #000;
    text-decoration: none;
}

#topNav .swiper-slide span {
    transition: all .3s ease;
    display: block;
}

#topNav .active span {
    transform: scale(1.1);
    font-weight: bold;
    color: rgb(0, 118, 246);
}

.swiper-nav-flex {
    justify-content: space-around;
    display: flex;
    flex-direction: row;
}

.swiper-nav-flex .swiper-slide {
    font-size: 42px !important;
}

@media screen and (max-width: 768px) {
    #topNav {
        display: block !important;
    }
}