.products_box {
    display: flex;
    justify-content: space-between;
}

.products_box .menu_box {
    width: 220px;
    border-radius: 6px;
    height: fit-content;
}

.products_box .menu_box .menu {
    line-height: 70px;
    font-size: 18px;
    text-align: center;
    border-top: 6px solid #dddddd;
    border-left: 6px solid #dddddd;
    border-right: 6px solid #dddddd;
    border-radius: 6px;
    font-family: arial, Microsoft yahei;
    cursor: pointer;
    color: #184b82;
}
.products_box .menu_box li:last-child {
    border-bottom: 6px solid #dddddd;
}

.product_box {
    display: none;
}

.product_box.active {
    display: block;
}

.menu.menu_active {
    background-color: #184b82;
    color: #fff !important;
    border-color: #184b82 !important;
}

.menu_title {
    font-family: arial, Microsoft yahei;
    font-size: 24px;
    height: 100px;
    font-weight: 600;
}

@media screen and (max-width:47.9375em) {
    .products_box {
        flex-direction: column;
    }

    .products_box .menu_box {
        width: 100%;
        flex-wrap: wrap;
        display: flex;
    }

    .menu_title {
        display: none;
    }

    .products_box .menu_box .menu {
        flex: 1 1 auto;
        margin: 10px;
        min-height: 60px;
        border-bottom: 6px solid #dddddd;
    }
}