.crumbs-guanxiang {
    border: none;
    padding: 18px 0;
}

.crumbs-guanxiang .bread {
    float: right;
    position: relative;
}

.crumbs-guanxiang .bread::after {
    content: "";
    position: absolute;
    left: -12px;
    top: 5px;
    width: 3px;
    height: 14px;
    background: var(--color-primary); 
}

.about-menu {
    padding: 30px 0;
    text-align: center;
    border-bottom: 1px solid #e3e3e3;
    background: #fff;
}

.about-menu .block_item {
    position: relative;
    /*padding-left: 300px;*/
}

.about-menu .tit {
    background: var(--color-primary);
    background-size: cover;
    width: 300px;
    height: 268px;
    position: absolute;
    left: 0;
    bottom: -2px;
    padding: 100px 30px 0;
    display: none;
}

.about-menu .tit .ml2 {
    font-size: 32px;
    line-height: 32px;
    color: #fff;
    font-weight: bold;
    text-align: start;
}

.about-menu ul {
    font-size: 0;
    width: 100%;
}

.about-menu ul li {
    /*height: 46px;*/
    line-height: 46px;
    display: inline-block;
    margin: 0 10px;
}

.about-menu ul li a {
    font-size: 18px;
    color: #adadad;
    display: block;
    padding: 0 25px;
    /*background: #eaeaea;*/
    line-height: 46px;
    border-radius: var(--button-radius);
    font-weight: bold;
}

.about-menu ul li.active a,
.about-menu ul li a:hover {
    /*color: #2f2f2f;*/
    color: var(--color-primary);
}

@media screen and (max-width: 1280px) {
    .about-menu ul li.active a,
    .about-menu ul li a:hover {
        background: var(--color-primary);
        color: #fff;
    }

    .about-menu .tit {
        background: none;
        background-image: none !important;
        width: 100%;
        height: auto;
        position: relative;
        bottom: 0;
        padding: 20px 0;
        text-align: center;
    }

    .about-menu .tit .ml2 {
        font-size: 18px;
        line-height: 18px;
        color: #000;
        text-align: center;
    }

    .about-menu ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .about-menu ul li {
        width: 47%;
        margin: 5px 0;
    }

    .about-menu ul li a {
        padding: 0;
        font-size: 14px;
        line-height: 36px;
        background: #eee;
        text-align: center;
        border-radius: 5px;
        color: #333;
    }

    .about-menu .block_item {
        padding: 0;
    }

    .about-menu {
        padding: 0;
    }
}

@media screen and (max-width: 768px) {
    .about-menu {
        /*padding: 20px 0 15px;*/
    }

    .about-menu ul li {
        /*height: 36px;*/
        line-height: 36px;
        margin: 0 5px 5px;
    }

    .about-menu ul li a {
        font-size: 14px;
        padding: 0 30px;
    }
}

@media screen and (max-width: 576px) {
    .about-menu ul li {
        width: 100%;
    }
}