/* 导航 */
.nav-div {
    width: 1400px;
    box-shadow: 0 5px 5px rgba(234, 234, 234);
    position: absolute;
    /* left: 50%;
    margin-left: -600px; */
    top: 0;
    height: 60px;
    background: #fff;
    overflow: hidden;
    padding-bottom: 4px;
}

.nav-span {
    margin: 0;
    padding: 20px;
    font-size: 18px;
    float: left;
    /* border-bottom: 3px solid rgba(234, 234, 234, 0.6); */
}

.nav-default {
    color: #000;
    /* border-color: #ff9966; */
    border-bottom: 3px solid #ff9966;
    padding-bottom: 17px;
}

.nav-span:hover {
    color: #000;
    border-bottom: 3px solid #ff9966;
    padding-bottom: 17px;
    /* border-color: #ff9966; */
}

/* 导航 end */
/* 自适应 */
@media screen and (max-width:1400px) and (min-width:1200px) {
    div.nav-div {
        width: 100%;
    }

    .nav-span {
        padding-bottom: 17px;
    }

    .swiper-container {
        width: 100%;
    }
}

@media screen and (max-width:1200px) and (min-width:768px) {
    div.nav-div {
        width: 100%;
    }

    .nav-span {
        padding-bottom: 17px;
    }

    .swiper-container {
        width: 100%;
    }
}

@media only screen and (max-width: 768px) {

    /* .nav-span {
        font-size: 1rem;
    } */
    div.nav-div {
        white-space: nowrap;
        overflow-x: auto;
        z-index: 990;
    }

    .nav-div::-webkit-scrollbar {
        display: none;
    }

    .nav-div a {
        display: inline-block;
    }
}