@media (max-width: 1200px) {
  .product-detail-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .features-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
}

@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-card { border-right: none; border-bottom: 1px solid var(--gray-200); padding: 48px 32px; }
  .about-card:last-child { border-bottom: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-map-wrapper { width: 80%; }
  .contact-map-wrapper iframe { height: 350px; }
  .products-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

  .product-detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .product-detail-desc { order: 2; }
  .product-detail-gallery { order: 1; }
  .product-hero-title { font-size: 1.8rem; font-size: clamp(1.8rem, 4vw, 2.5rem); }

  .clients-grid { grid-template-columns: repeat(4, 1fr); gap: 24px; }

  .dz-cards { grid-template-columns: repeat(2, 1fr) !important; gap: 20px; }
  .dz-features { grid-template-columns: repeat(2, 1fr) !important; gap: 20px; }
  .dz-gc-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 20px; }
  .dz-it-inner { grid-template-columns: 1fr !important; gap: 40px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }

  .site-header { height: 48px; }

  .nav-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    z-index: 998;
    padding: 64px 24px 24px;
    overflow-y: auto;
  }
  .nav-menu.open { display: flex; }
  .nav-menu .nav-dropdown { position: static; }
  .nav-menu .nav-link,
  .site-header.scrolled .nav-menu .nav-link,
  .site-header.on-hero .nav-menu .nav-link {
    font-size: 1rem;
    padding: 14px 0;
    color: var(--gray-900);
    border-bottom: 1px solid var(--gray-200);
    display: block;
    width: 100%;
  }
  .nav-menu .dropdown-menu {
    display: block;
    position: static;
    border: none;
    box-shadow: none;
    padding: 0 0 0 16px;
    min-width: 0;
    background: none;
  }
  .nav-menu .dropdown-menu li a {
    padding: 10px 0;
    font-size: 0.9rem;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-100);
  }

  .nav-actions { gap: 8px; }
  .nav-search .search-box { right: -60px; width: 220px; }

  .mobile-menu-btn { display: flex; }
  .mobile-menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
  .mobile-menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
  .site-header.scrolled .mobile-menu-btn span,
  .site-header.on-hero .mobile-menu-btn span { background: var(--white); }
  .site-header:not(.on-hero):not(.scrolled) .mobile-menu-btn span { background: var(--gray-900); }
  .nav-menu.open ~ .nav-actions .mobile-menu-btn span,
  .mobile-menu-btn.active span { background: var(--gray-900) !important; }
  .site-header.scrolled .lang-btn,
  .site-header.on-hero .lang-btn { color: var(--white); }
  .site-header:not(.on-hero):not(.scrolled) .lang-btn { color: var(--gray-700); }

  .breadcrumb { padding-top: 60px; }
  .breadcrumb .container { font-size: 0.75rem; }

  .page-header { padding: 24px 0 40px; }
  .page-header h1 { font-size: 1.5rem; font-size: clamp(1.5rem, 5vw, 2rem); }

  .hero-content h1 { font-size: 1.8rem; font-size: clamp(1.8rem, 7vw, 2.5rem); }
  .hero-overlay { padding-bottom: 8vh; }
  .hero-actions { flex-direction: column; align-items: center; gap: 12px; }
  .hero-arrow { width: 36px; height: 36px; }

  .section-padding { padding: 48px 0; }
  .section-title { font-size: 1.5rem; }

  .products-grid, .news-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }

  .category-filter { gap: 12px; flex-wrap: wrap; }
  .filter-btn { font-size: 0.7rem; padding: 6px 12px; }

  .news-item a { flex-direction: column; }
  .news-image { width: 100%; aspect-ratio: 16/9; margin-right: 0; margin-bottom: 16px; }

  .product-hero { padding: 24px 0 0; }
  .product-hero-title { font-size: 1.5rem; font-size: clamp(1.5rem, 5vw, 2rem); }
  .product-detail-section { padding: 40px 0; margin-top: 24px; }
  .product-detail-grid { grid-template-columns: 1fr; gap: 24px; }
  .product-detail-gallery { order: 1; }
  .product-detail-desc { order: 2; }

  .gallery-main { aspect-ratio: 16/10; }
  .gallery-thumb { width: 56px; height: 56px; }

  .product-tabs-section { padding: 40px 0; }
  .tab-nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab-btn { padding: 10px 16px; font-size: 0.75rem; white-space: nowrap; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-card { padding: 20px; }
  .spec-table td { padding: 10px 0; font-size: 0.85rem; }
  .spec-grid { gap: 16px; }
  .spec-grid-text { padding: 16px; }

  .dz-timeline-item { min-width: 140px; padding: 0 16px; }
  .dz-tl-top { min-height: 48px; padding-bottom: 12px; }
  .dz-tl-year { font-size: 0.8rem; }
  .dz-tl-bottom { min-height: 48px; padding-top: 12px; }
  .dz-tl-title { font-size: 0.85rem; }
  .dz-tl-desc { font-size: 0.75rem; max-width: 160px; }

  .dz-gc-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 16px; }
  .dz-gc-body { padding: 16px; }

  .dz-cards { grid-template-columns: repeat(2, 1fr) !important; gap: 16px; }
  .dz-features { grid-template-columns: repeat(2, 1fr) !important; gap: 16px; }

  .dz-it-inner { grid-template-columns: 1fr !important; gap: 32px; }
  .dz-it-image img { max-width: 100%; }

  .dz-hero-inner { grid-template-columns: 1fr !important; }
  .dz-hero-image img { max-width: 100%; }

  .dz-compare-wrap { overflow-x: auto; }

  .clients-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .client-item { padding: 16px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero-content h1 { font-size: 1.5rem; }
  .hero-actions .btn { width: 100%; text-align: center; }

  .team-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .product-hero-title { font-size: 1.4rem; }
  .product-hero-subtitle { font-size: 0.95rem; }

  .gallery-main { aspect-ratio: 4/3; }
  .gallery-thumb { width: 48px; height: 48px; }

  .spec-grid { grid-template-columns: 1fr !important; }

  .dz-timeline-item { min-width: 120px; padding: 0 12px; }
  .dz-tl-top { min-height: 40px; }
  .dz-tl-bottom { min-height: 40px; }
  .dz-tl-title { font-size: 0.8rem; }
  .dz-tl-desc { font-size: 0.7rem; max-width: 120px; }

  .dz-gc-grid { grid-template-columns: 1fr !important; gap: 12px; }
  .dz-gc-card { border-radius: 8px; }

  .dz-cards { grid-template-columns: 1fr !important; gap: 12px; }
  .dz-features { grid-template-columns: 1fr !important; gap: 12px; }

  .gallery-arrow { width: 32px; height: 32px; }

  .float-inquiry-btn { bottom: 20px; right: 20px; width: 48px; height: 48px; }
  .float-phone-btn { bottom: 80px; right: 20px; width: 48px; height: 48px; }
  .float-phone-popup { bottom: 140px; right: 16px; left: 16px; width: auto; }
  .float-inquiry-popup { bottom: 140px; right: 16px; left: 16px; width: auto; }

  .tabs-header { flex-wrap: wrap; border-bottom: none; }
  .tab-btn { border-bottom: 1px solid var(--gray-200); flex: 1; text-align: center; }
  .tab-btn.active { border-bottom-color: var(--gray-900); }

  .clients-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }

  .nav-search .search-box { right: -80px; width: 200px; }
}