.page_left {
    width: 310px;
    margin-bottom: 40px;
}
.son_nav {
    margin-bottom: 15px;
}
.son_nav ul li {
    line-height: 40px;
    margin-bottom: 5px;
    background: #f5f5f5;
    height: 40px;
}
.son_nav ul li a {
    display: block;
    text-align: center;
    font-size: 16px;
}
.son_nav ul li a:hover {
    color: #2253ab;
}
.son_nav ul li.cur {
    background: #2253ab;
}
.son_nav ul li.cur a {
    color: white;
}

.p_l_box2 {
    margin-bottom: 10px;
}
.p_l_box2 ul li {
    line-height: 34px;
    font-size: 15px;
}

.p_l_ad {
    margin-bottom: 10px;
}

.page_right {
    width: 865px;
    margin-bottom: 40px;
}

/* 小屏幕设备 */
@media screen and (max-width: 768px) {
    .page_left {
        display: none;
    }

    .page_right {
        width: 100% !important;
    }
}