.helical-network-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.helical-site-group {
  background: #fafafa;
  border-radius: 10px;
  padding: 15px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.helical-site-title {
  font-size: 1.2em;
  margin-bottom: 10px;
  color: #222;
  border-bottom: 2px solid #ddd;
  padding-bottom: 5px;
}
.helical-post h3 a {
  text-decoration: none;
  color: #333;
}
.helical-post-meta {
  font-size: 0.8em;
  color: #666;
}