.nav1{
    width: 90%;
    margin: auto;
    border-bottom: 1px solid;
}
.breadcrumb{
    width: 89.5%;
    margin: auto;
    display: flex;
    font-size: 24px;
    align-items: center;
    padding: 10px 0;
}
.breadcrumb a {
    text-decoration: none;
    color: #333;
    margin: 0 6px;  /* 给链接左右加间距 */
}
.breadcrumb span {
    margin: 0 8px;  /* 分隔符左右加间距 */
    font-size: 18px;
}
.breadcrumb .red{
    color: #CC0404FF;
}
.nav2{
    margin: 30px 0;
}
.nav2 .anli{
    padding: 0 18%;
    display: flex;
    justify-content: space-between;
    flex-flow: wrap;
}
.nav2 .anli .item{
    width: 22%;
    text-align: center;
    margin-top: 20px;
}
.nav2 .anli .item .text{
    font-size: 24px;
    margin: 20px 0;
}

@media (max-width: 1000px) {
    .nav1{
        width: 100%;
    }
    .breadcrumb{
        width: 97%;
    }
    .breadcrumb a{
        font-size: 16px;
    }
    .breadcrumb span{
        font-size: 14px;
    }
    .nav2 .anli{
        padding: 0 10px;
        flex-wrap: wrap;
    }
    .nav2 .anli .item{
        width: 100%;
    }

}