@media (max-width: 1024px) {
  .hero-banner {
    min-height: 700px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-image {
    order: -1;
  }

  /* Homepage products: 4 cols → 2 cols */
  .products-grid--home {
    grid-template-columns: repeat(2, 1fr);
    max-width: 100%;
  }

  .product-card--home {
    width: 100%;
  }

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

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

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

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-banner {
    min-height: 550px;
  }

  /* Inner page banners */
  .page-hero,
  .page-header {
    min-height: 400px;
  }

  .page-hero__title,
  .page-header h1 {
    font-size: 2rem;
  }

  /* Mobile navigation */
  .mobile-menu-toggle {
    display: block;
  }

  .main-navigation {
    display: none;
  }

  .nav-menu {
    display: none;
  }

  /* Homepage products: 2 cols on tablet, 1 col on mobile */
  .products-grid--home {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

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

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  /* Contact Section - reference: 7.png */
  .contact-grid {
    grid-template-columns: 1fr;
  }


  /* Contact Section Responsive */
  .contact-section__header {
    padding: 32px 0 28px;
  }

  .contact-section__title {
    font-size: 1.375rem;
  }

  .contact-section__subtitle {
    font-size: 0.875rem;
  }

  .contact-section__body {
    padding: 28px 0;
  }

  .contact-form-col {
    order: -1;
  }

  .contact-form__header {
    margin-bottom: 16px;
  }

  .contact-form__title {
    font-size: 1.125rem;
  }

  .contact-form__desc {
    font-size: 0.8125rem;
  }

  .contact-info-col {
    padding: 20px;
  }

  .contact-submit-btn {
    height: 44px;
    font-size: 0.9375rem;
  }

  .contact-guarantee__title {
    font-size: 0.9375rem;
  }

  .contact-guarantee__list li {
    font-size: 0.8125rem;
  }


  .blog-featured-card {
    grid-template-columns: 1fr;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
}

/* Small mobile: single column products */
@media (max-width: 576px) {
  .products-grid--home {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Additional Responsive Styles
   ======================================== */

/* Product Single Page */
@media (max-width: 768px) {
  .product-hero-content {
    grid-template-columns: 1fr !important;
    gap: var(--spacing-xl) !important;
  }

  .product-gallery {
    order: -1;
  }

  .tech-specs dl {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }

  .tech-specs dt {
    margin-top: var(--spacing-sm);
  }

  .product-actions {
    flex-direction: column;
  }

  .product-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Navigation Dropdown Styles */
.has-dropdown {
  position: relative;
}

.dropdown-toggle {
  background: none;
  border: none;
  padding: var(--spacing-xs);
  cursor: pointer;
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  transition: transform 0.2s ease;
}

.dropdown-toggle:hover {
  color: var(--color-primary);
}

.has-dropdown:hover .dropdown-toggle svg,
.has-dropdown.open .dropdown-toggle svg {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-background);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  list-style: none;
  padding: var(--spacing-sm);
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  z-index: 100;
}

.nav-menu li:hover > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-weight: 400;
}

.dropdown-menu a:hover {
  background: var(--color-background-alt);
  color: var(--color-primary);
}

/* Mobile Menu Active State */
.main-navigation.is-active {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-background);
  z-index: 999;
  padding: var(--spacing-3xl) var(--spacing-lg);
  overflow-y: auto;
}

.main-navigation.is-active .nav-menu {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.main-navigation.is-active .nav-menu > li > a {
  font-size: 1.25rem;
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.main-navigation.is-active .dropdown-menu {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  box-shadow: none;
  background: var(--color-background-alt);
  margin-top: var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.main-navigation.is-active .sub-menu--products {
  min-width: unset;
}

.main-navigation.is-active .menu-item--cat > a {
  flex-direction: row;
}

.main-navigation.is-active .cat-thumb {
  width: 32px;
  height: 32px;
}

.mobile-menu-toggle.is-active {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-lg);
  z-index: 1001;
  background: var(--color-background);
  border-radius: 50%;
  padding: var(--spacing-sm);
}

/* Page Template Styles */
.page-header {
  background: linear-gradient(135deg, var(--color-header-bg) 0%, var(--color-header-accent) 100%);
  min-height: 600px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(74, 111, 165, 0.1) 0%, transparent 50%);
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  color: #ffffff;
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
}

.page-header p,
.page-header .subtitle,
.page-header .page-header__subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  max-width: 600px;
  margin: var(--spacing-md) auto 0;
  line-height: 1.6;
}

.page-content {
  padding: var(--spacing-3xl) 0;
}

.page-content .container {
  max-width: 960px;
}

/* Honeypot field for contact form */
.form-honeypot {
  position: absolute;
  left: -9999px;
  visibility: hidden;
}

/* Breadcrumb Styles */
.breadcrumb {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

/* Screen reader only */
.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
  word-wrap: normal !important;
}

.screen-reader-text:focus {
  background-color: var(--color-background);
  clip: auto !important;
  display: block;
  font-size: 1rem;
  font-weight: 700;
  height: auto;
  left: var(--spacing-md);
  line-height: normal;
  padding: var(--spacing-md);
  text-decoration: none;
  top: var(--spacing-md);
  width: auto;
  z-index: 100000;
}

/* ========================================
   Component Styles - Single Product
   ======================================== */

/* Product Hero Section */
.product-hero {
  background: var(--color-header-bg);
  padding: var(--spacing-2xl) 0;
}

/* Product Hero Content */
.product-hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

/* Product Gallery */
.product-gallery__main {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.product-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-gallery__thumbs {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.product-gallery__thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s ease;
}

.product-gallery__thumb:hover,
.product-gallery__thumb.is-active {
  border-color: var(--color-primary);
}

/* Product Info */
.product-info h1 {
  margin-bottom: var(--spacing-md);
}

.product-info .product-model {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.product-info .product-excerpt {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* Tech Specs */
.tech-specs {
  margin-bottom: var(--spacing-xl);
}

.tech-specs h3 {
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
}

.tech-specs dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--spacing-sm) var(--spacing-md);
  margin: 0;
}

.tech-specs dt {
  font-weight: 600;
  color: var(--color-text-secondary);
}

.tech-specs dd {
  color: var(--color-text-primary);
}

/* Product Actions */
.product-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* Product Description */
.product-description {
  padding: var(--spacing-3xl) 0;