* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: #f5f7fa; color: #333; }
.container { max-width: 1100px; margin: 0 auto; padding: 20px; }

.top-nav { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.08); position: sticky; top: 0; z-index: 100; }
.top-nav .container { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; }
.top-nav .logo { font-size: 22px; font-weight: bold; color: #e74c3c; text-decoration: none; }
.top-nav .logo span { color: #333; }
.top-nav .nav-links a { color: #666; text-decoration: none; margin-left: 20px; font-size: 14px; }
.top-nav .nav-links a:hover { color: #e74c3c; }
.top-nav .nav-links a.active { color: #e74c3c; font-weight: 600; }

.page-header { text-align: center; padding: 40px 0 30px; }
.page-header h1 { font-size: 32px; color: #1a1a2e; }
.page-header p { color: #999; margin-top: 8px; }

.category-nav { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 30px; }
.category-nav a { padding: 6px 20px; border-radius: 20px; background: #f0f0f0; color: #666; text-decoration: none; font-size: 14px; transition: all 0.2s; }
.category-nav a:hover { background: #e74c3c; color: #fff; }
.category-nav a.active { background: #e74c3c; color: #fff; }

.article-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 25px; }
.article-item { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.06); transition: all 0.3s; }
.article-item:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0,0,0,0.10); }
.article-item .cover { height: 180px; background: #f0f0f0; background-size: cover; background-position: center; }
.article-item .info { padding: 18px 20px; }
.article-item .category { display: inline-block; background: #e74c3c; color: #fff; padding: 0 12px; border-radius: 10px; font-size: 11px; line-height: 20px; margin-bottom: 8px; }
.article-item .title { font-size: 18px; font-weight: 600; color: #1a1a2e; text-decoration: none; display: block; margin-bottom: 8px; }
.article-item .title:hover { color: #e74c3c; }
.article-item .summary { font-size: 14px; color: #888; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-item .meta { font-size: 12px; color: #bbb; margin-top: 12px; display: flex; gap: 15px; }
.article-item .badge-pillar { background: #e74c3c; color: #fff; padding: 0 10px; border-radius: 10px; font-size: 10px; line-height: 18px; display: inline-block; }

.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; padding: 20px 0; }
.pagination a, .pagination span { padding: 8px 16px; border-radius: 6px; background: #fff; color: #333; text-decoration: none; border: 1px solid #e0e0e0; }
.pagination a:hover { background: #e74c3c; color: #fff; border-color: #e74c3c; }
.pagination .current { background: #e74c3c; color: #fff; border-color: #e74c3c; }

.footer { text-align: center; padding: 30px 0 20px; color: #999; font-size: 13px; border-top: 1px solid #e0e0e0; margin-top: 20px; }
.footer a { color: #666; text-decoration: none; }
.footer a:hover { color: #e74c3c; }

@media (max-width: 768px) {
    .article-list { grid-template-columns: 1fr; }
    .top-nav .nav-links a { margin-left: 10px; font-size: 13px; }
    .page-header h1 { font-size: 24px; }
}