/* ==============================================================================
   Quant-FX Research - 响应式断点与移动端适配 (responsive.css)
   ============================================================================== */

@media (max-width: 992px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .article-title {
    font-size: 1.85rem;
  }
}

@media (max-width: 768px) {
  .docs-container {
    padding: 1.25rem 1rem 3rem;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-default);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0.5rem;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
  }

  .nav-links.show {
    display: flex;
  }

  .nav-item {
    width: 100%;
    padding: 0.6rem 0.8rem;
  }

  .grid-cards {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .article-title {
    font-size: 1.55rem;
  }

  .article-subtitle {
    font-size: 0.95rem;
  }

  .stat-value {
    font-size: 1.45rem;
  }

  .article-meta {
    gap: 0.75rem;
  }
}