* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1a1a2e; background: #f8f9fa; line-height: 1.7; }
.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.main-content { padding: 40px 0; min-height: 60vh; }
.nav { background: #1a1a2e; color: #fff; padding: 16px 0; position: sticky; top: 0; z-index: 100; }
.nav .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.4rem; font-weight: 700; color: #fff; text-decoration: none; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { color: #aaa; text-decoration: none; font-size: 0.9rem; transition: color .2s; }
.nav-links a:hover { color: #fff; }
.section-title { font-size: 1.5rem; font-weight: 700; margin: 48px 0 20px; padding-bottom: 8px; border-bottom: 3px solid #1a1a2e; display: flex; align-items: center; gap: 10px; }
.section-title:first-of-type { margin-top: 0; }
.section-title .badge { font-size: 0.7rem; background: #1a1a2e; color: #fff; padding: 2px 10px; border-radius: 12px; font-weight: 500; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.card { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,.06); transition: transform .2s, box-shadow .2s; text-decoration: none; color: inherit; display: block; }
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,.1); }
.card-img { width: 100%; height: 180px; object-fit: cover; background: #eee; display: block; }
.card-no-img { width: 100%; height: 180px; background: linear-gradient(135deg, #667eea, #764ba2); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 2rem; }
.card-body { padding: 16px; }
.card-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.card-date { font-size: 0.8rem; color: #888; }
.card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.card-tag { font-size: 0.75rem; background: #f0f0f5; padding: 2px 8px; border-radius: 8px; color: #555; }
.article { background: #fff; border-radius: 12px; padding: 40px; box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.article-back { display: inline-flex; align-items: center; gap: 6px; color: #666; text-decoration: none; font-size: 0.9rem; margin-bottom: 24px; }
.article-back:hover { color: #1a1a2e; }
.article-category { display: inline-block; font-size: 0.8rem; background: #1a1a2e; color: #fff; padding: 3px 12px; border-radius: 12px; margin-bottom: 12px; }
.article-title { font-size: 2rem; font-weight: 700; margin-bottom: 12px; line-height: 1.3; }
.article-meta { font-size: 0.85rem; color: #888; margin-bottom: 24px; }
.article-img { width: 100%; max-height: 400px; object-fit: cover; border-radius: 8px; margin-bottom: 24px; }
.article-body { font-size: 1.05rem; line-height: 1.8; color: #333; }
.article-body h1, .article-body h2, .article-body h3 { margin: 28px 0 12px; font-weight: 600; }
.article-body p { margin-bottom: 16px; }
.article-body strong { font-weight: 600; }
.article-body em { font-style: italic; }
.article-body blockquote { border-left: 4px solid #1a1a2e; padding: 12px 20px; margin: 16px 0; background: #f8f9fa; color: #555; }
.article-body code { background: #f0f0f5; padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }
.article-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; padding-top: 16px; border-top: 1px solid #eee; }
.article-tag { font-size: 0.8rem; background: #f0f0f5; padding: 4px 12px; border-radius: 12px; color: #555; }
.empty-state { text-align: center; padding: 80px 0; color: #888; }
.footer { background: #1a1a2e; color: #888; text-align: center; padding: 24px 0; font-size: 0.85rem; margin-top: 40px; }
@media (max-width: 640px) {
  .card-grid { grid-template-columns: 1fr; }
  .article { padding: 20px; }
  .article-title { font-size: 1.5rem; }
}