/**
 * tpcoder科技 - 响应式断点适配规则
 * Responsive CSS: Media queries for desktop, tablet, and mobile
 */

/* 大屏幕 / 笔记本适配 (<= 1200px) */
@media (max-width: 1200px) {
  .hero-title {
    font-size: 2.85rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .stat-item:nth-child(2)::after {
    display: none;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top {
    grid-template-columns: 1.8fr 1fr 1fr;
  }

  .footer-col-newsletter {
    grid-column: span 3;
    margin-top: 20px;
  }
}

/* 平板适配 (<= 992px) */
@media (max-width: 992px) {
  .header-nav,
  .header-actions .header-contact-btn {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .hero {
    padding: 60px 0 60px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
    margin: 0 auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-badges {
    justify-content: center;
    flex-wrap: wrap;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sla-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

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

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .footer-col-brand {
    grid-column: span 2;
  }

  .footer-col-newsletter {
    grid-column: span 2;
  }
}

/* 手机竖屏适配 (<= 768px) */
@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

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

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .page-header {
    padding: 56px 0 48px;
  }

  .page-header-title {
    font-size: 2rem;
  }

  .stats-banner {
    margin-top: 0;
    padding: 32px 20px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .stat-item::after {
    display: none !important;
  }

  .services-grid,
  .features-grid,
  .cases-grid,
  .timeline-steps,
  .team-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

  .form-group-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-info-card,
  .contact-form-container {
    padding: 32px 24px;
  }

  .cta-banner {
    padding: 48px 24px;
  }

  .cta-banner-title {
    font-size: 1.75rem;
  }

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

  .footer-col-brand,
  .footer-col-newsletter {
    grid-column: span 1;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  .float-tools {
    right: 18px;
    bottom: 20px;
  }

  .float-btn {
    width: 42px;
    height: 42px;
  }
}

/* 超小屏 (<= 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stat-number-wrap {
    font-size: 2.4rem;
  }

  .filter-tabs {
    gap: 8px;
  }

  .filter-btn {
    padding: 7px 16px;
    font-size: 0.8rem;
  }
}