/* news_seo 模板样式 - SEO优化版 */
/* 设计原则：轻量、语义化、移动优先 */

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    background: #fff;
}

a { color: #2563eb; text-decoration: none; }
a:hover { color: #dc2626; text-decoration: underline; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 15px; }

/* 头部 */
.site-header {
    border-bottom: 2px solid #2563eb;
    padding: 15px 0;
}
.site-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo a { font-size: 24px; font-weight: bold; color: #2563eb; }
.main-nav ul { list-style: none; display: flex; gap: 20px; }
.main-nav a { color: #333; font-size: 15px; }
.main-nav a:hover { color: #2563eb; }

/* 面包屑 */
.breadcrumb { background: #f5f5f5; padding: 10px 0; font-size: 13px; color: #666; }
.breadcrumb a { color: #666; }
.breadcrumb a:hover { color: #2563eb; }

/* 首页 */
.home-title { font-size: 28px; margin: 20px 0; color: #1a1a1a; }

/* 栏目导航 */
.category-nav { margin: 20px 0; }
.category-nav h2 { font-size: 20px; margin-bottom: 10px; }
.cat-list { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.cat-list a { display: inline-block; padding: 5px 15px; background: #f0f4ff; border-radius: 4px; font-size: 14px; }
.cat-list a:hover { background: #2563eb; color: #fff; }

/* 文章列表 */
.article-list { margin: 20px 0; }
.article-list h2 { font-size: 20px; margin-bottom: 15px; border-left: 4px solid #2563eb; padding-left: 10px; }
.article-item { margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid #eee; }
.article-item h3 { font-size: 18px; margin-bottom: 8px; }
.article-item h3 a { color: #1a1a1a; }
.article-item h3 a:hover { color: #2563eb; }
.article-desc { color: #666; font-size: 14px; margin-bottom: 5px; }
.article-meta { font-size: 12px; color: #999; }
.article-meta span { margin-right: 15px; }

/* 城市标签云 */
.city-tags { margin: 30px 0; }
.city-tags h2 { font-size: 20px; margin-bottom: 15px; border-left: 4px solid #2563eb; padding-left: 10px; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a { display: inline-block; padding: 4px 12px; background: #f5f5f5; border-radius: 3px; font-size: 13px; color: #333; }
.tag-cloud a:hover { background: #2563eb; color: #fff; }

/* 友情链接 */
.friend-links { margin: 30px 0; }
.friend-links h2 { font-size: 18px; margin-bottom: 10px; }
.friend-links ul { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.friend-links a { font-size: 13px; color: #666; }

/* 文章详情页 */
.article-detail { margin: 20px 0; }
.article-detail h1 { font-size: 26px; margin-bottom: 15px; line-height: 1.4; color: #1a1a1a; }
.article-meta { font-size: 13px; color: #999; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid #eee; }
.article-meta span { margin-right: 15px; }
.article-content { font-size: 16px; line-height: 2; color: #333; }
.article-content p { margin-bottom: 15px; }
.article-content h2 { font-size: 20px; margin: 20px 0 10px; }
.article-content h3 { font-size: 18px; margin: 15px 0 10px; }
.article-content img { max-width: 100%; height: auto; }

/* 标签内链 */
.article-tags { margin: 20px 0; padding: 15px 0; border-top: 1px solid #eee; border-bottom: 1px solid #eee; }
.article-tags a { display: inline-block; padding: 3px 10px; background: #f0f4ff; border-radius: 3px; font-size: 13px; margin-right: 8px; }

/* 上下篇导航 */
.article-nav { display: flex; justify-content: space-between; margin: 20px 0; font-size: 14px; }
.article-nav a { color: #2563eb; }

/* 相关推荐 */
.related-articles { margin: 30px 0; }
.related-articles h2 { font-size: 18px; margin-bottom: 10px; }
.related-articles ul { list-style: none; }
.related-articles li { margin-bottom: 10px; padding-bottom: 10px; border-bottom: 1px dashed #eee; }
.related-articles h3 { font-size: 15px; font-weight: normal; }
.related-articles h3 a { color: #333; }
.related-articles h3 a:hover { color: #2563eb; }
.related-articles p { font-size: 13px; color: #999; margin-top: 3px; }

/* 列表页 */
.list-items { margin: 20px 0; }
.list-item { margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid #eee; }
.list-item h2 { font-size: 18px; margin-bottom: 8px; font-weight: normal; }
.list-item h2 a { color: #1a1a1a; }
.list-item h2 a:hover { color: #2563eb; }
.item-desc { color: #666; font-size: 14px; }
.item-meta { font-size: 12px; color: #999; margin-top: 5px; }

/* 城市标签页 */
.city-intro { background: #f9f9f9; padding: 15px; margin: 20px 0; border-radius: 4px; }
.city-intro p { font-size: 14px; color: #555; }
.city-articles { margin: 20px 0; }
.city-articles h2 { font-size: 20px; margin-bottom: 15px; border-left: 4px solid #2563eb; padding-left: 10px; }
.other-cities { margin: 30px 0; }
.other-cities h2 { font-size: 18px; margin-bottom: 10px; }

/* 分页 */
.pagination { text-align: center; margin: 20px 0; }
.pagination a { display: inline-block; padding: 5px 12px; border: 1px solid #ddd; margin: 0 3px; font-size: 14px; }
.pagination a:hover { background: #2563eb; color: #fff; border-color: #2563eb; }
.pagination .current { background: #2563eb; color: #fff; border-color: #2563eb; }

/* 页脚 */
footer, .footer-nav { background: #2c3e50; color: #ccc; padding: 30px 0; margin-top: 40px; }
.footer-nav { text-align: center; margin-bottom: 15px; }
.footer-nav a { color: #ccc; font-size: 13px; }
.footer-nav a:hover { color: #fff; }
.copyright { text-align: center; font-size: 13px; }
.copyright a { color: #ccc; }

/* 移动端适配 */
@media (max-width: 768px) {
    .site-header .container { flex-direction: column; }
    .main-nav ul { flex-wrap: wrap; justify-content: center; }
    .home-title { font-size: 22px; }
    .article-detail h1 { font-size: 20px; }
    .article-content { font-size: 15px; }
    .article-nav { flex-direction: column; gap: 10px; }
}