/* 响应式设计 */
@media (max-width: 1200px) {
  .section-title {
    font-size: 2.2rem;
  }
}

@media (max-width: 992px) {
  .section-title {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero p {
    font-size: 1.2rem;
  }

  .company-content {
    flex-direction: column;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .company-strengths {
    grid-template-columns: 1fr;
  }

  .tab-buttons {
    flex-wrap: wrap;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .btn-primary {
    padding: 10px 20px;
  }

  .industry-facts {
    grid-template-columns: 1fr;
  }

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
  }

  .legal-links {
    display: flex;
    flex-direction: column;
  }

  .legal-links a {
    margin: 5px 0;
  }
}