.wp-article-directory {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 15px;
    margin: 20px 0;
}

.wp-article-directory h3 {
    margin-top: 0;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
    font-size: 18px;
    color: #333;
}

.wp-article-directory ul {
    list-style-type: none;
    padding-left: 0;
    margin: 15px 0 0 0;
}

.wp-article-directory li {
    margin-bottom: 10px;
    padding-left: 15px;
    position: relative;
}

.wp-article-directory li:before {
    content: "•";
    color: #666;
    position: absolute;
    left: 0;
}

.wp-article-directory a {
    color: #0073aa;
    text-decoration: none;
    transition: color 0.2s;
}

.wp-article-directory a:hover {
    color: #00a0d2;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .wp-article-directory {
        padding: 10px;
    }
    .wp-article-directory h3 {
        font-size: 16px;
    }
}`