/*
Theme Name: Chaoqiang Industrial
Theme URI: https://www.dgcq88.com
Description: 广东超强电子科技有限公司官网主题 — 对标Minebea Intec国际化工业风格
Version: 1.0
Author: CHAOQIANG
Text Domain: chaoqiang
*/

/* ===== CSS Reset & Variables ===== */
:root {
  --cq-navy: #0A1F3D;
  --cq-navy-light: #0F2B55;
  --cq-blue: #1A56DB;
  --cq-blue-light: #3B82F6;
  --cq-accent: #EA580C;
  --cq-accent-hover: #C2410C;
  --cq-gray-50: #F8FAFC;
  --cq-gray-100: #F1F5F9;
  --cq-gray-200: #E2E8F0;
  --cq-gray-300: #CBD5E1;
  --cq-gray-400: #94A3B8;
  --cq-gray-500: #64748B;
  --cq-gray-600: #475569;
  --cq-gray-700: #334155;
  --cq-gray-800: #1E293B;
  --cq-gray-900: #0F172A;
  --cq-white: #FFFFFF;
  --cq-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --cq-shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --cq-shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --cq-shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --cq-shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
  --cq-radius: 4px;
  --cq-transition: .25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--cq-font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--cq-gray-800);
  background: var(--cq-white);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cq-blue); text-decoration: none; transition: color var(--cq-transition); }
a:hover { color: var(--cq-accent); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.3; color: var(--cq-navy); }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ===== Top Bar ===== */
.top-bar {
  background: var(--cq-gray-900);
  color: var(--cq-gray-400);
  font-size: 13px;
  padding: 8px 0;
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: var(--cq-gray-400); }
.top-bar a:hover { color: var(--cq-white); }
.top-bar-links { display: flex; gap: 20px; }

/* ===== Header / Navigation ===== */
.site-header {
  background: var(--cq-white);
  border-bottom: 1px solid var(--cq-gray-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--cq-shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.site-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--cq-navy);
  letter-spacing: -.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.site-logo span { color: var(--cq-accent); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: block;
  padding: 28px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--cq-gray-800);
  transition: color var(--cq-transition);
}
.main-nav > li > a:hover,
.main-nav > li.current-menu-item > a { color: var(--cq-blue); }
.main-nav > li > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--cq-accent);
  transition: all var(--cq-transition);
  transform: translateX(-50%);
}
.main-nav > li > a:hover::after,
.main-nav > li.current-menu-item > a::after { width: 40px; }

/* Dropdown */
.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--cq-white);
  border: 1px solid var(--cq-gray-200);
  border-radius: var(--cq-radius);
  box-shadow: var(--cq-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--cq-transition);
  padding: 8px 0;
}
.main-nav > li:hover .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.sub-menu li a {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--cq-gray-700);
  transition: all var(--cq-transition);
}
.sub-menu li a:hover {
  background: var(--cq-gray-50);
  color: var(--cq-blue);
  padding-left: 24px;
}

/* CTA Button */
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--cq-accent);
  color: var(--cq-white);
  padding: 10px 24px;
  border-radius: var(--cq-radius);
  font-size: 14px;
  font-weight: 600;
  transition: background var(--cq-transition);
}
.header-cta:hover { background: var(--cq-accent-hover); color: var(--cq-white); }

/* Mobile toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cq-gray-800);
  margin: 5px 0;
  transition: var(--cq-transition);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--cq-navy) 0%, var(--cq-navy-light) 60%, var(--cq-blue) 100%);
  color: var(--cq-white);
  padding: 100px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero .container { position: relative; z-index: 1; }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: var(--cq-white);
  margin-bottom: 20px;
  max-width: 700px;
  line-height: 1.2;
}
.hero .hero-subtitle {
  font-size: 20px;
  color: var(--cq-gray-300);
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.6;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--cq-radius);
  font-size: 16px;
  font-weight: 600;
  transition: all var(--cq-transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--cq-accent);
  color: var(--cq-white);
  border-color: var(--cq-accent);
}
.btn-primary:hover { background: var(--cq-accent-hover); border-color: var(--cq-accent-hover); color: var(--cq-white); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--cq-white);
  border-color: rgba(255,255,255,.4);
}
.btn-outline:hover { border-color: var(--cq-white); background: rgba(255,255,255,.1); color: var(--cq-white); }
.btn-blue {
  background: var(--cq-blue);
  color: var(--cq-white);
  border-color: var(--cq-blue);
}
.btn-blue:hover { background: #1E40AF; border-color: #1E40AF; color: var(--cq-white); }

/* Hero stats */
.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,.15);
}
.hero-stat .number {
  font-size: 36px;
  font-weight: 800;
  color: var(--cq-accent);
  line-height: 1;
}
.hero-stat .label {
  font-size: 14px;
  color: var(--cq-gray-400);
  margin-top: 8px;
}

/* ===== Section Common ===== */
.section { padding: 80px 0; }
.section-gray { background: var(--cq-gray-50); }
.section-dark { background: var(--cq-navy); color: var(--cq-white); }
.section-dark h2, .section-dark h3 { color: var(--cq-white); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}
.section-header p {
  font-size: 18px;
  color: var(--cq-gray-500);
  max-width: 640px;
  margin: 0 auto;
}
.section-dark .section-header p { color: var(--cq-gray-400); }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--cq-accent);
  margin-bottom: 12px;
}

/* ===== Product Cards ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 28px;
}
.product-card {
  background: var(--cq-white);
  border: 1px solid var(--cq-gray-200);
  border-radius: 8px;
  overflow: hidden;
  transition: all var(--cq-transition);
}
.product-card:hover {
  box-shadow: var(--cq-shadow-lg);
  transform: translateY(-4px);
  border-color: var(--cq-blue);
}
.product-card-img {
  height: 240px;
  background: var(--cq-gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-card-img img { width: 100%; height: 100%; object-fit: cover; }
.product-card-body { padding: 28px; }
.product-card h3 { font-size: 20px; margin-bottom: 10px; }
.product-card .model { color: var(--cq-accent); font-weight: 700; font-size: 14px; margin-bottom: 10px; }
.product-card p { color: var(--cq-gray-500); font-size: 14px; margin-bottom: 20px; line-height: 1.6; }
.product-card .specs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.product-card .spec-tag {
  background: var(--cq-gray-100);
  color: var(--cq-gray-600);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}
.product-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14px;
  color: var(--cq-blue);
}
.product-card .card-link:hover { gap: 10px; }

/* ===== Solutions/Industries ===== */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0;
}
.industry-card {
  padding: 40px 32px;
  border-right: 1px solid var(--cq-gray-200);
  border-bottom: 1px solid var(--cq-gray-200);
  transition: all var(--cq-transition);
  cursor: pointer;
}
.industry-card:nth-child(4n) { border-right: none; }
.industry-card:hover {
  background: var(--cq-navy);
  color: var(--cq-white);
}
.industry-card:hover h3 { color: var(--cq-white); }
.industry-card:hover .industry-icon { color: var(--cq-accent); }
.industry-icon {
  font-size: 36px;
  margin-bottom: 20px;
  color: var(--cq-blue);
  transition: color var(--cq-transition);
}
.industry-card h3 { font-size: 18px; margin-bottom: 10px; transition: color var(--cq-transition); }
.industry-card p { font-size: 14px; color: var(--cq-gray-500); transition: color var(--cq-transition); }
.industry-card:hover p { color: var(--cq-gray-400); }

/* ===== Knowledge / Content Cards ===== */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}
.knowledge-card {
  background: var(--cq-white);
  border-radius: 8px;
  padding: 32px;
  border: 1px solid var(--cq-gray-200);
  transition: all var(--cq-transition);
}
.knowledge-card:hover {
  border-color: var(--cq-blue);
  box-shadow: var(--cq-shadow-md);
}
.knowledge-card .category {
  display: inline-block;
  background: #EFF6FF;
  color: var(--cq-blue);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
}
.knowledge-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  line-height: 1.4;
}
.knowledge-card h3 a { color: var(--cq-navy); }
.knowledge-card h3 a:hover { color: var(--cq-blue); }
.knowledge-card .excerpt {
  font-size: 14px;
  color: var(--cq-gray-500);
  margin-bottom: 20px;
  line-height: 1.6;
}
.knowledge-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--cq-gray-400);
  padding-top: 16px;
  border-top: 1px solid var(--cq-gray-100);
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--cq-blue) 0%, var(--cq-navy) 100%);
  color: var(--cq-white);
  padding: 64px 0;
  text-align: center;
}
.cta-banner h2 { font-size: 32px; color: var(--cq-white); margin-bottom: 16px; }
.cta-banner p { font-size: 18px; color: rgba(255,255,255,.8); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ===== Footer ===== */
.site-footer {
  background: var(--cq-gray-900);
  color: var(--cq-gray-400);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-col h4 {
  color: var(--cq-white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: var(--cq-gray-400); font-size: 14px; }
.footer-col a:hover { color: var(--cq-white); }
.footer-about .site-logo { color: var(--cq-white); margin-bottom: 16px; }
.footer-about p { font-size: 14px; line-height: 1.7; margin-bottom: 20px; }
.footer-contact p { font-size: 14px; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 8px; }
.footer-contact strong { color: var(--cq-white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--cq-gray-500); }
.footer-bottom-links a:hover { color: var(--cq-white); }

/* ===== Page Header (inner pages) ===== */
.page-header {
  background: linear-gradient(135deg, var(--cq-navy) 0%, var(--cq-navy-light) 100%);
  color: var(--cq-white);
  padding: 60px 0;
}
.page-header h1 { font-size: 36px; color: var(--cq-white); margin-bottom: 8px; }
.breadcrumb { font-size: 14px; color: var(--cq-gray-400); }
.breadcrumb a { color: var(--cq-gray-400); }
.breadcrumb a:hover { color: var(--cq-white); }
.breadcrumb span { margin: 0 8px; }

/* ===== Content Area ===== */
.content-area { padding: 60px 0; }
.content-wrapper { display: grid; grid-template-columns: 1fr 300px; gap: 48px; }
.main-content { min-width: 0; }
.sidebar { }
.sidebar-widget {
  background: var(--cq-gray-50);
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 24px;
}
.sidebar-widget h3 { font-size: 16px; margin-bottom: 16px; }
.sidebar-widget ul li { border-bottom: 1px solid var(--cq-gray-200); }
.sidebar-widget ul li a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  color: var(--cq-gray-600);
}
.sidebar-widget ul li a:hover { color: var(--cq-blue); }

/* Article content */
.article-content { font-size: 16px; line-height: 1.8; }
.article-content h2 { font-size: 28px; margin: 40px 0 16px; }
.article-content h3 { font-size: 22px; margin: 32px 0 12px; }
.article-content p { margin-bottom: 20px; }
.article-content ul, .article-content ol { margin-bottom: 20px; padding-left: 24px; }
.article-content ul li { list-style: disc; margin-bottom: 8px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-content th, .article-content td { padding: 12px 16px; border: 1px solid var(--cq-gray-200); text-align: left; font-size: 14px; }
.article-content th { background: var(--cq-gray-50); font-weight: 700; color: var(--cq-navy); }
.article-content blockquote {
  border-left: 4px solid var(--cq-accent);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--cq-gray-50);
  border-radius: 0 var(--cq-radius) var(--cq-radius) 0;
  font-style: italic;
  color: var(--cq-gray-600);
}
.tldr-box {
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}
.tldr-box h4 { color: var(--cq-blue); font-size: 14px; margin-bottom: 8px; }
.tldr-box p { font-size: 16px; font-weight: 500; color: var(--cq-navy); margin: 0; }

/* FAQ */
.faq-item {
  border: 1px solid var(--cq-gray-200);
  border-radius: var(--cq-radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-question {
  width: 100%;
  padding: 18px 24px;
  background: var(--cq-white);
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--cq-navy);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-question::after { content: '+'; font-size: 24px; color: var(--cq-gray-400); transition: var(--cq-transition); }
.faq-item.active .faq-question::after { transform: rotate(45deg); }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: all var(--cq-transition); }
.faq-item.active .faq-answer { padding: 0 24px 20px; max-height: 500px; }

/* Spec table */
.spec-table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.spec-table th, .spec-table td { padding: 14px 20px; border: 1px solid var(--cq-gray-200); font-size: 14px; }
.spec-table th { background: var(--cq-navy); color: var(--cq-white); font-weight: 600; text-align: left; width: 35%; }
.spec-table tr:nth-child(even) td { background: var(--cq-gray-50); }

/* Certifications */
.certs-row { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 24px; }
.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--cq-gray-50);
  border: 1px solid var(--cq-gray-200);
  border-radius: var(--cq-radius);
  font-size: 13px;
  font-weight: 600;
  color: var(--cq-navy);
}

/* Pagination */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 48px; }
.pagination a, .pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--cq-gray-200);
  border-radius: var(--cq-radius);
  font-size: 14px;
  font-weight: 600;
  color: var(--cq-gray-700);
}
.pagination a:hover { border-color: var(--cq-blue); color: var(--cq-blue); }
.pagination .current { background: var(--cq-blue); color: var(--cq-white); border-color: var(--cq-blue); }

/* Contact form */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--cq-gray-700); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--cq-gray-300);
  border-radius: var(--cq-radius);
  font-size: 15px;
  font-family: inherit;
  transition: border-color var(--cq-transition);
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--cq-blue); box-shadow: 0 0 0 3px rgba(26,86,219,.1); }
.contact-info-card {
  background: var(--cq-navy);
  color: var(--cq-white);
  border-radius: 8px;
  padding: 40px;
}
.contact-info-card h3 { color: var(--cq-white); margin-bottom: 24px; }
.contact-info-card .info-item { margin-bottom: 24px; }
.contact-info-card .info-item .label { font-size: 13px; color: var(--cq-gray-400); margin-bottom: 4px; }
.contact-info-card .info-item .value { font-size: 18px; font-weight: 600; }

/* Cases */
.case-card {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 32px;
  background: var(--cq-white);
  border: 1px solid var(--cq-gray-200);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 28px;
  transition: box-shadow var(--cq-transition);
}
.case-card:hover { box-shadow: var(--cq-shadow-md); }
.case-card-img { height: 220px; background: var(--cq-gray-100); }
.case-card-img img { width: 100%; height: 100%; object-fit: cover; }
.case-card-body { padding: 28px 28px 28px 0; }
.case-card .industry { color: var(--cq-accent); font-weight: 600; font-size: 13px; margin-bottom: 8px; }
.case-card h3 { font-size: 20px; margin-bottom: 12px; }
.case-card p { color: var(--cq-gray-500); font-size: 14px; margin-bottom: 16px; }
.case-metrics { display: flex; gap: 24px; }
.case-metric .num { font-size: 24px; font-weight: 800; color: var(--cq-blue); }
.case-metric .lbl { font-size: 12px; color: var(--cq-gray-400); }

/* About page */
.about-hero { padding: 80px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; margin-top: 48px; }
.about-stat { text-align: center; }
.about-stat .num { font-size: 42px; font-weight: 800; color: var(--cq-accent); }
.about-stat .lbl { font-size: 14px; color: var(--cq-gray-500); margin-top: 4px; }
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: var(--cq-gray-200); }
.timeline-item { position: relative; margin-bottom: 28px; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cq-blue);
  border: 3px solid var(--cq-white);
  box-shadow: 0 0 0 2px var(--cq-blue);
}
.timeline-item .year { font-weight: 700; color: var(--cq-accent); font-size: 15px; }
.timeline-item .event { color: var(--cq-gray-600); font-size: 14px; margin-top: 4px; }

/* Responsive */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2,1fr); }
  .content-wrapper { grid-template-columns: 1fr; }
  .case-card { grid-template-columns: 1fr; }
  .case-card-body { padding: 28px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .top-bar { display: none; }
  .main-nav {
    display: none;
    position: absolute;
    top: 80px;
    left: 0; right: 0;
    background: var(--cq-white);
    flex-direction: column;
    box-shadow: var(--cq-shadow-lg);
    padding: 16px;
  }
  .main-nav.open { display: flex; }
  .main-nav > li > a { padding: 14px 16px; }
  .mobile-toggle { display: block; }
  .header-cta { display: none; }
  .hero { padding: 60px 0 80px; }
  .hero h1 { font-size: 32px; }
  .hero .hero-subtitle { font-size: 16px; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 28px; }
  .products-grid, .knowledge-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2,1fr); }
  .industry-card:nth-child(4n) { border-right: 1px solid var(--cq-gray-200); }
  .industry-card:nth-child(2n) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .contact-grid { grid-template-columns: 1fr; }
}