#container {
    width: 1200px;
    margin: 30px auto 0;
}

/*  站点栏目 */
.columns-title {
    position: relative;
    text-indent: 10px;
    font-size: 24px;
    display: flex;
}

.columns-title::before {
    content: '';
    width: 5px;
    height: 16px;
    background: #015293;
    display: inline-block;
    margin: auto;
}

.columns-title::after {
    content: '';
    flex: 1 1 0;
    display: inline-block;
    border-bottom: 1px solid #e0e2e4;
}

.columns-title a {
    background: url(icon-line.png) right bottom no-repeat;
    padding-right: 50px;
    margin-right: 10px;
    font-size: 24px;
}

.columns-body {
    justify-content: start;
    margin-top: 20px;
}

.columns-body li {
    margin: 0 5px 20px 5px;
    font-size: 16px;
    line-height: 50px;
    text-align: center;
    background-color: #f2f2f2;
}

.columns-body li a {
    width: 100%;
    height: 100%;
    display: block;
}

.columns-body li:hover {
    background: #015293;
}

.columns-body li:hover a {
    color: #fff;
}

/* 每行展示几个二级栏目 */
.columns-by-3 li {
    width: 180px;
}

.columns-by-4 li {
    width: 290px;
}

.columns-by-5 li {
    width: 230px;
}