/* Language visibility - only for data-inline/data-block spans */
[lang][data-inline]:not(.active) { display: none; }
[lang][data-inline].active { display: inline; }
[lang][data-block]:not(.active) { display: none; }
[lang][data-block].active { display: block; }

  @font-face {
  font-family: 'Pangmen';
  src: url('images/pangmen-font.ttf') format('truetype');
  font-display: swap;
  font-weight: normal;
  font-style: normal;
}

:root {
    --primary: #1a3e5c;
    --primary-light: #1e5f8e;
    --accent: #f26522;
    --accent-hover: #d95518;
    --bg: #ffffff;
    --bg-light: #f5f7fa;
    --bg-dark: #0a1f3f;
    --text: #1a1a2e;
    --text-light: #555;
    --text-on-dark: #e0e5ec;
    --border: #e0e4e8;
    --card-bg: #ffffff;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --radius: 8px;
    --radius-lg: 12px;
    --max-width: 1280px;
  }
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Segoe UI', system-ui, -apple-system, 'Microsoft YaHei', sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }

  .hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--text);
    z-index: 1001;
    flex-shrink: 0;
  }
  .hamburger svg { display: block; }
  .hamburger:hover { color: var(--accent); }

  .nav-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 998;
  }
  .nav-overlay.open { display: block; }

  @media (min-width: 769px) {
  .nav-footer { display: none; }
}

  .nav-footer {
    padding: 20px 16px;
    flex-shrink: 0;
    width: 100%;
    text-align: center;
  }
  .nav-copyright {
    text-align: center;
    font-size: 12px;
    color: #999;
    padding: 16px 0 4px;
    line-height: 1.5;
    border-top: 1px solid var(--border);
  }
  .nav-contact-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0 16px;
  }
  .nav-contact-info a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--text);
    text-decoration: none;
    font-size: 13px;
    font-family: Arial, Helvetica, sans-serif;
  }

  .header-left {
    display: flex;
    align-items: center;
    gap: clamp(12px, 2vw, 24px);
    line-height: 1;
    font-size: clamp(14px, 1.3vw, 17px);
    color: var(--text-light);
    flex-shrink: 0;
  }
  .header-left .phone { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: clamp(13px, 1.3vw, 17px); text-decoration: none; font-family: Arial, Helvetica, sans-serif; }
  .header-left .phone:hover { color: var(--accent); }
  .header-left .header-email { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: clamp(13px, 1.3vw, 17px); text-decoration: none; font-family: Arial, Helvetica, sans-serif; }
  .header-left .header-email:hover { color: var(--accent); }
  .header-left .social-icons { display: flex; gap: 6px; align-items: center; }
  .header-left .social-icons a { color: var(--text-light); font-size: clamp(14px, 1.8vw, 22px); text-decoration: none; display: flex; align-items: center; }
  .header-left .social-icons a:hover { color: var(--accent); }
  .header-right { display: flex; align-items: center; gap: 20px; margin-left: auto; line-height: 1; }

  /* Header */
  .header {
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  }
  .header-inner {
    max-width: none;
    margin: 0;
    padding: clamp(6px, 1.5vw, 12px) clamp(12px, 3vw, 40px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: clamp(40px, 5vw, 56px);
  }
  .header-nav-row {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 clamp(8px, 2vw, 24px) 2px;
    display: flex;
    align-items: center;
  }
  @media (min-width: 769px) {
  .header-nav-row {
    justify-content: center;
  }
}
  .logo {
    font-size: clamp(16px, 2.2vw, 26px);
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: clamp(6px, 1vw, 12px);
    white-space: nowrap;
    font-family: 'Pangmen', 'Microsoft YaHei', sans-serif;
  }
  @media (min-width: 769px) {
    .logo-img {
      height: clamp(18px, 2.6vw, 30px);
    }
  }
  .logo-img {
    width: auto;
    display: block;
  }
  .nav { display: flex; gap: clamp(16px, 4vw, 56px); align-items: center; }
  .nav a {
    padding: 2px clamp(10px, 2.5vw, 36px);
    border-radius: 6px;
    font-size: clamp(15px, 1.2vw, 18px);
    font-weight: 500;
    color: var(--text);
    transition: all 0.2s;
    white-space: nowrap;
  }
  .nav a:hover { background: var(--bg-light); color: var(--primary); }
  .nav-active { color: var(--accent) !important; font-weight: 700; }

  /* Dropdown */
  .nav-dropdown { position: relative; display: flex; align-items: center; }
  .nav-dropdown-toggle { display: none; } /* desktop: hidden, hover still opens menu */
  .nav-dropdown-menu { display: none; position: absolute; top: 100%; left: 0; background: #fff; border: 1px solid var(--border); border-radius: 8px; box-shadow: var(--shadow-lg); padding: 4px 0; z-index: 1002; min-width: 180px; }
  .nav-mega-menu {
    position: fixed;
    top: calc(var(--nav-bottom, 80px) + 3px);
    left: 50%;
    transform: translateX(-50%);
    width: min(1100px, 90vw);
    padding: 16px clamp(8px, 1.5vw, 16px);
    min-width: auto;
    z-index: 1003;
  }
  .nav-mega-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: clamp(8px, 1.5vw, 24px); }
  .nav-mega-cat { display: flex; flex-direction: column; gap: 4px; }
  .nav-mega-cat-title { font-weight: 700; font-size: clamp(11px, 1vw, 13px); color: var(--primary); display: block; padding: 4px 8px; border-bottom: 1px solid var(--border); margin-bottom: 2px; }
  .nav-mega-subs a { padding: 3px 8px; font-size: 12px; }
  .nav-dropdown.touch-open .nav-dropdown-menu,

  .nav-dropdown:hover .nav-dropdown-menu,
  .nav-dropdown:focus-within .nav-dropdown-menu { display: block; }
  .nav-mega-menu::before {
    content: '';
    position: absolute;
    top: -14px;
    left: -30px;
    right: -30px;
    height: 14px;
    background: transparent;
  }
  .nav-dropdown-menu a { display: block; padding: 6px 14px; border-radius: 0; font-size: 13px; color: var(--text); white-space: nowrap; }
  .nav-dropdown-menu a:hover { background: var(--bg-light); color: var(--primary); }

  /* Language Switcher */
  .lang-switch {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
    background: var(--bg-light);
    border-radius: 6px;
    padding: 3px;
    flex-shrink: 0;
    margin-left: 8px;
    margin-right: 4px;
  }
  .lang-btn {
    padding: 4px 8px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    background: transparent;
    color: var(--text-light);
    transition: all 0.2s;
    font-family: inherit;
    white-space: nowrap;
  }
  .lang-btn.active {
    background: var(--accent);
    color: #fff;
  }
  .lang-btn:hover:not(.active) { background: var(--border); }
  .lang-globe { display: none; background: none; border: none; cursor: pointer; padding: 6px; color: var(--text-light); border-radius: 4px; transition: all 0.2s; }
  .lang-globe:hover { color: var(--accent); background: var(--bg-light); }
  .social-more { position: relative; display: flex; align-items: center; }
  .social-more-btn { background: none; border: none; cursor: pointer; padding: 4px; color: var(--text-light); border-radius: 4px; transition: all 0.2s; display: flex; align-items: center; }
  .social-more-btn:hover { color: var(--accent); background: var(--bg-light); }
  .social-more-popup { display: none; position: absolute; top: 100%; right: 0; background: #fff; border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 4px 16px rgba(0,0,0,0.12); z-index: 9999; padding: 8px; white-space: nowrap; }
  .social-more:hover .social-more-popup { display: flex; gap: 6px; }
  .social-more-popup a { color: var(--text-light); transition: color 0.2s; }
  .social-more-popup a:hover { color: var(--accent); }
  .lang-picker { position: fixed; top: 56px; right: 12px; background: #fff; border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 4px 16px rgba(0,0,0,0.12); z-index: 9999; padding: 6px; }
  .lang-picker .lang-btn { display: block; width: 100%; text-align: left; padding: 8px 14px; font-size: 14px; border-radius: 4px; }
  .lang-picker .lang-btn.active { background: var(--bg-light); color: var(--primary); }
  .lang-picker .lang-btn:hover:not(.active) { background: var(--bg-light); }

  .btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 20px; border-radius: 6px; font-weight: 600;
    font-size: 15px; cursor: pointer; border: none; transition: all 0.2s;
    white-space: nowrap; font-family: inherit;
  }
  .btn-primary { background: var(--accent); color: #fff; }
  .btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(232,117,26,0.3); }
  .btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
  .btn-outline:hover { background: var(--primary); color: #fff; }
  .btn-white { background: #fff; color: var(--primary); }
  .btn-white:hover { background: #e0e5ec; }
  .btn-nav { padding: 9px 18px; }

  /* Hero */
  .hero {
    background: linear-gradient(135deg, var(--primary) 0%, #0d2b56 40%, #15356b 100%);
    color: #fff;
    padding: clamp(125px, 12.5vw, 200px) 24px clamp(125px, 12.5vw, 188px);
    position: relative;
    overflow: hidden;
  }
  .hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(26,62,92,0.85) 0%, rgba(13,43,86,0.88) 40%, rgba(21,53,107,0.85) 100%);
    z-index: 0;
  }
  .hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('images/hero-bg.jpg') center/cover no-repeat;
    filter: brightness(0.7);
  }
  .hero-inner { max-width: var(--max-width); margin: 0 auto; position: relative; z-index: 1; }
  .hero h1 { font-size: clamp(28px, 4vw, 48px); font-weight: 800; line-height: 1.15; max-width: 720px; margin-bottom: 20px; letter-spacing: -0.5px; }
  .hero h1 .hl { color: var(--accent); }
  .hero p { font-size: clamp(14px, 1.4vw, 18px); max-width: 600px; color: rgba(255,255,255,0.8); margin-bottom: clamp(20px, 2.5vw, 32px); line-height: 1.6; }
  .hero-actions { display: flex; gap: clamp(16px, 4vw, 56px); flex-wrap: wrap; }

  /* Sections */
  .section { padding: 80px 24px; max-width: var(--max-width); margin: 0 auto; }
  .section-sm { padding: 48px 24px; }
  .section-dark {
    background: var(--bg-dark); color: #fff; padding: 80px 24px;
  }
  .section-dark .section-title { color: #fff; }
  .section-dark .section-subtitle { color: rgba(255,255,255,0.7); }
  .section-dark-inner { max-width: var(--max-width); margin: 0 auto; }
  .section-title { font-size: clamp(24px, 3vw, 36px); font-weight: 800; margin-bottom: 12px; letter-spacing: -0.3px; }
  .section-subtitle { font-size: clamp(16px, 1.8vw, 24px); color: var(--text-light); margin-bottom: clamp(24px, 4vw, 48px); max-width: 600px; }

  /* Stats */
  .stats { display: flex; justify-content: center; gap: clamp(20px, 5vw, 60px); flex-wrap: wrap; }
  .stat { text-align: center; }
  .stat-number { font-size: clamp(28px, 3.5vw, 42px); font-weight: 800; color: var(--accent); display: block; }
  .stat-label { font-size: 15px; color: var(--text-light); margin-top: 4px; }

  /* Card grid */
  .card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 24px; }
  .card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 28px;
    transition: all 0.3s; cursor: pointer; display: flex; flex-direction: column; gap: 14px;
  }
  .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
  .card-icon {
    width: 56px; height: 56px; background: var(--bg-light);
    border-radius: 10px; display: flex; align-items: center; justify-content: center;
    font-size: 24px; color: var(--accent); flex-shrink: 0;
  }
  .card h3 { font-size: 24px; font-weight: 700; color: var(--primary); }
  .card p { font-size: 15px; color: var(--text-light); line-height: 1.5; }
  .card .link { font-weight: 600; color: var(--accent); font-size: 14px; margin-top: auto; }

  /* Feature cards */
  .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: clamp(24px, 4vw, 56px); }
  .feature-card {
    background: #fff; border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 36px 30px; transition: all 0.3s;
  }
  .feature-card:hover { box-shadow: var(--shadow-lg); }
  .feature-card h3 { font-size: 24px; font-weight: 700; margin-bottom: 12px; color: var(--primary); }
  .feature-card ul { list-style: none; padding: 0; }
  .feature-card ul li { padding: 6px 0; font-size: clamp(13px, 1.1vw, 15px); color: var(--text-light); position: relative; padding-left: clamp(12px, 1.5vw, 20px); }
  .feature-card ul li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

  /* Product highlight */
  .product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 4vw, 48px); align-items: start; }
  .product-info h2 { font-size: clamp(22px, 2.8vw, 32px); font-weight: 800; margin-bottom: 16px; }
  .product-info .specs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
  .spec-item {
    background: var(--bg-light); padding: 12px 16px; border-radius: 6px; font-size: 14px;
  }
  .spec-item strong { display: block; font-size: 12px; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }

  /* Dark version */
  .product-info-dark h2 { color: #fff; }
  .product-info-dark p { color: rgba(255,255,255,0.7); }
  .product-info-dark .spec-item { background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.9); }
  .product-info-dark .spec-item strong { color: rgba(255,255,255,0.5); }

  /* Industry cards on dark */
  .card-dark { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg); padding: 28px; }
  .card-dark h3 { color: #fff; margin-bottom: 12px; }
  .card-dark p { color: rgba(255,255,255,0.6); font-size: 15px; }
  .card-dark .link { margin-top: 12px; display: inline-block; }

  /* Timeline */
  .timeline { position: relative; padding: 20px 0; }
  .timeline::before { content: ''; position: absolute; left: 24px; top: 0; bottom: 0; width: 2px; background: var(--border); border-radius: 1px; }
  .timeline-item { display: flex; gap: 20px; margin-bottom: 24px; position: relative; }
  .timeline-year {
    width: 48px; height: 48px; min-width: 48px; border-radius: 50%;
    background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 14px; z-index: 1;
  }
  .timeline-body { padding-top: 4px; }
  .timeline-body h4 { font-size: clamp(14px, 1.3vw, 16px); font-weight: 700; margin-bottom: 4px; }
  .timeline-body p { font-size: clamp(12px, 1.1vw, 14px); color: var(--text-light); }
  .timeline-dark .timeline::before { background: rgba(255,255,255,0.15); }
  .timeline-dark .timeline-body h4 { color: #fff; }
  .timeline-dark .timeline-body p { color: rgba(255,255,255,0.6); }

  /* CTA */
  .cta-card {
    background: linear-gradient(135deg, var(--accent), #d06918);
    color: #fff; padding: clamp(24px, 4vw, 48px); border-radius: var(--radius-lg); text-align: center;
  }
  .cta-card h2 { font-size: clamp(22px, 2.5vw, 30px); margin-bottom: 12px; }
  .cta-card p { font-size: clamp(16px, 2vw, 24px); opacity: 0.9; margin-bottom: clamp(16px, 2.5vw, 28px); max-width: 560px; margin-left: auto; margin-right: auto; }

  
/* Footer */
.footer { background: #1a1a1a; color: #fff; position: relative; overflow: hidden; display: block; }
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; opacity: 0.06; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 100'%3E%3Ccircle cx='100' cy='50' r='40' fill='none' stroke='%23fff' stroke-width='0.5'/%3E%3Cellipse cx='100' cy='50' rx='60' ry='30' fill='none' stroke='%23fff' stroke-width='0.5'/%3E%3C/svg%3E"); background-size: 1200px 600px; background-position: center; pointer-events: none; }
.footer-inner { max-width: 1280px; margin: 0 auto; padding: clamp(20px, 3vw, 40px) clamp(16px, 2vw, 24px); position: relative; z-index: 1; display: block; }
.footer-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 20px; border-bottom: 1px solid rgba(255,255,255,0.15); }
.footer-nav { display: flex; gap: clamp(16px, 4vw, 48px); list-style: none; padding: 0; margin: 0; }
.footer-nav a { color: #fff; text-decoration: none; font-size: 15px; font-weight: 600; letter-spacing: 2px; }
.footer-nav a:hover { color: #f0a040; }
.footer-logo { display: flex; align-items: center; gap: 12px; }
.footer-logo img { height: clamp(30px, 5vw, 60px); background: transparent; border-radius: 0; padding: 0; display: block; }
.footer-brand { font-size: clamp(24px, 3.5vw, 40px); font-weight: normal; letter-spacing: 3px; color: #fff; font-family: 'Pangmen', 'Microsoft YaHei', sans-serif; }
.footer-contact { display: flex; justify-content: space-between; align-items: center; list-style: none; padding: clamp(16px, 2vw, 24px) 0; margin: 0; border-bottom: 1px solid rgba(255,255,255,0.15); }
.footer-contact li { flex: 1; text-align: center; font-size: 15px; color: rgba(255,255,255,0.85); }
.footer-contact a { color: rgba(255,255,255,0.85); text-decoration: none; display: flex; align-items: center; justify-content: center; gap: 10px; }
  .footer-contact-item { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; }
.footer-contact a:hover { color: #fff; }
.footer-bottom-row { display: flex; justify-content: space-between; align-items: center; padding-top: clamp(12px, 1.5vw, 20px); }
.footer-contact-icon { width: clamp(28px, 3vw, 36px); height: clamp(28px, 3vw, 36px); flex-shrink: 0; }
.footer-social {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    list-style: none;
    padding: 0;
    margin: 0;
  }
.footer-social li a { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; color: #fff; transition: transform 0.2s; }
.footer-social li:nth-child(1) a { background: #25D366; }
.footer-social li:nth-child(2) a { background: #3b5998; }
.footer-social li:nth-child(3) a { background: #000; }
.footer-social li:nth-child(4) a { background: #ff0000; }
.footer-social li:nth-child(5) a { background: #E4405F; }
.footer-social li:nth-child(6) a { background: #000; }
.footer-social li:nth-child(7) a { background: #E60023; }
.footer-social li:nth-child(8) a { background: #0077FF; }
.footer-social li:nth-child(9) a { background: #0A66C2; }
.footer-social li a:hover { transform: translateY(-2px); }
.footer-copyright { font-size: 13px; color: rgba(255,255,255,0.6); text-align: right; }
@media (max-width: 1024px) {
  .nav-mega-menu { width: 90vw; }
  .nav-mega-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .nav { gap: 8px; }
  .nav a { padding: 1px 10px; font-size: 14px; }
}

@media (max-width: 850px) {
  .nav-mega-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-left .phone, .header-left .header-email, .header-left .social-icons, .header-left .social-more { display: none; }
  .hamburger { display: flex; position: absolute; left: 12px; top: 50%; transform: translateY(-50%); padding: 8px; }
  .header-inner { position: relative; justify-content: center; }
  .header-right { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); }
  .logo-img { height: 30px; }
  .logo { font-size: 20px; gap: 6px; }
  .header-nav-row {
    position: fixed;
    top: 0;
    left: -100%;
    width: min(360px, 85vw);
    height: 100vh;
    background: #fff;
    z-index: 999;
    transition: left 0.3s ease;
    overflow: hidden;
    box-shadow: 0 0 0 transparent;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding-top: 72px;
  }
  .header-nav-row.open {
    left: 0;
    box-shadow: 4px 0 24px rgba(0,0,0,0.12);
  }
  .nav {
    display: flex !important;
    flex-direction: column !important;
    gap: 0 !important;
    align-items: stretch !important;
    width: 100% !important;
    padding: 0 !important;
    flex: 1 !important;
    min-height: 0 !important;
    overflow-y: auto !important;
    justify-content: flex-start !important;
    text-align: left !important;
    padding: 4px 0 !important;
    margin: 0 !important;
    flex: 1;
    overflow-y: auto;
  }
  .nav a, .nav-dropdown > a {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-start !important;
    text-align: left !important;
    padding: 12px 16px !important;
    font-size: 16px !important;
    line-height: 1.5 !important;
    color: var(--text);
    text-decoration: none;
    transition: background 0.15s;
    text-align: left !important;
    gap: 8px;
  }
  .nav-dropdown-toggle { display: flex !important; align-items: center; justify-content: center; width: 36px; min-height: 44px; padding: 0; margin: 0; background: none; border: none; cursor: pointer; color: var(--text); flex-shrink: 0; transition: transform 0.2s; }
  .nav-dropdown.touch-open .nav-dropdown-toggle { transform: rotate(180deg); }
  .nav a:active, .nav-dropdown > a:active { background: var(--bg-light); }
  .nav a.nav-active { color: var(--primary); font-weight: 600; background: var(--bg-light); }
  .nav-dropdown:has(a.nav-active) { background: var(--bg-light); border-radius: 4px; }
  .nav-dropdown:hover { background: var(--bg-light); border-radius: 4px; }
  .nav a.btn-nav {
    margin: 12px 24px; padding: 14px 24px; border-radius: 10px; text-align: center;
    justify-content: center; background: var(--accent); color: #fff; font-weight: 600; font-size: 14px;
  }
  .nav a.btn-nav:active { background: var(--accent-hover); }
  .nav a[data-icon]::before, .nav-dropdown > a[data-icon]::before {
    content: '';
    display: inline-block !important;
    width: 22px !important;
    height: 22px !important;
    margin-right: 12px !important;
    vertical-align: middle !important;
    background: currentColor;
    -webkit-mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
  }
  .nav a[data-icon="home"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 01-2 2H5a2 2 0 01-2-2z' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 01-2 2H5a2 2 0 01-2-2z' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
  }
  .nav a[data-icon="about"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='10' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cline x1='12' y1='16' x2='12' y2='12' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cline x1='12' y1='8' x2='12.01' y2='8' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='10' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cline x1='12' y1='16' x2='12' y2='12' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cline x1='12' y1='8' x2='12.01' y2='8' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
  }
  .nav a[data-icon="products"]::before, .nav-dropdown > a[data-icon="products"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='1' y='3' width='22' height='18' rx='2' ry='2' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cline x1='1' y1='9' x2='23' y2='9' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='1' y='3' width='22' height='18' rx='2' ry='2' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cline x1='1' y1='9' x2='23' y2='9' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
  }
  .nav a[data-icon="solutions"]::before, .nav-dropdown > a[data-icon="solutions"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='2' y='7' width='20' height='14' rx='2' ry='2' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpath d='M16 7V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v3' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect x='2' y='7' width='20' height='14' rx='2' ry='2' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpath d='M16 7V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v3' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
  }
  .nav a[data-icon="services"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='3' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpath d='M19.4 15a1.65 1.65 0 00.33 1.82l.06.06a2 2 0 010 2.83 2 2 0 01-2.83 0l-.06-.06a1.65 1.65 0 00-1.82-.33 1.65 1.65 0 00-1 1.51V21a2 2 0 01-2 2 2 2 0 01-2-2v-.09A1.65 1.65 0 009 19.4a1.65 1.65 0 00-1.82.33l-.06.06a2 2 0 01-2.83 0 2 2 0 010-2.83l.06-.06A1.65 1.65 0 004.68 15a1.65 1.65 0 00-1.51-1H3a2 2 0 01-2-2 2 2 0 012-2h.09A1.65 1.65 0 004.6 9a1.65 1.65 0 00-.33-1.82l-.06-.06a2 2 0 010-2.83 2 2 0 012.83 0l.06.06A1.65 1.65 0 009 4.68a1.65 1.65 0 001-1.51V3a2 2 0 012-2 2 2 0 012 2v.09a1.65 1.65 0 001 1.51 1.65 1.65 0 001.82-.33l.06-.06a2 2 0 012.83 0 2 2 0 010 2.83l-.06.06a1.65 1.65 0 00-.33 1.82V9a1.65 1.65 0 001.51 1H21a2 2 0 012 2 2 2 0 01-2 2h-.09a1.65 1.65 0 00-1.51 1z' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='3' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpath d='M19.4 15a1.65 1.65 0 00.33 1.82l.06.06a2 2 0 010 2.83 2 2 0 01-2.83 0l-.06-.06a1.65 1.65 0 00-1.82-.33 1.65 1.65 0 00-1 1.51V21a2 2 0 01-2 2 2 2 0 01-2-2v-.09A1.65 1.65 0 009 19.4a1.65 1.65 0 00-1.82.33l-.06.06a2 2 0 01-2.83 0 2 2 0 010-2.83l.06-.06A1.65 1.65 0 004.68 15a1.65 1.65 0 00-1.51-1H3a2 2 0 01-2-2 2 2 0 012-2h.09A1.65 1.65 0 004.6 9a1.65 1.65 0 00-.33-1.82l-.06-.06a2 2 0 010-2.83 2 2 0 012.83 0l.06.06A1.65 1.65 0 009 4.68a1.65 1.65 0 001-1.51V3a2 2 0 012-2 2 2 0 012 2v.09a1.65 1.65 0 001 1.51 1.65 1.65 0 001.82-.33l.06-.06a2 2 0 012.83 0 2 2 0 010 2.83l-.06.06a1.65 1.65 0 00-.33 1.82V9a1.65 1.65 0 001.51 1H21a2 2 0 012 2 2 2 0 01-2 2h-.09a1.65 1.65 0 00-1.51 1z' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
  }
  .nav a[data-icon="contact"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpolyline points='22,6 12,13 2,6' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z' fill='none' stroke='%23000' stroke-width='2'/%3E%3Cpolyline points='22,6 12,13 2,6' fill='none' stroke='%23000' stroke-width='2'/%3E%3C/svg%3E");
  }
  
  .nav a[data-icon="blog"]::before, .nav-dropdown > a[data-icon="blog"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2024%2024%27%3E%3Cpath%20d%3D%27M4%2022h16a2%202%200%20002-2V4a2%202%200%2000-2-2H4a2%202%200%2000-2%202v16a2%202%200%20002%202z%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3Cpath%20d%3D%27M7%208h10M7%2012h10M7%2016h6%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3C%2Fsvg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2024%2024%27%3E%3Cpath%20d%3D%27M4%2022h16a2%202%200%20002-2V4a2%202%200%2000-2-2H4a2%202%200%2000-2%202v16a2%202%200%20002%202z%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3Cpath%20d%3D%27M7%208h10M7%2012h10M7%2016h6%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3C%2Fsvg%3E");
  }
  .nav a[data-icon="faq"]::before, .nav-dropdown > a[data-icon="faq"]::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2024%2024%27%3E%3Ccircle%20cx%3D%2712%27%20cy%3D%2712%27%20r%3D%2710%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3Cpath%20d%3D%27M9.09%209a3%203%200%20015.83%201c0%202-3%203-3%203%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3Cline%20x1%3D%2712%27%20y1%3D%2717%27%20x2%3D%2712.01%27%20y2%3D%2717%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3C%2Fsvg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20viewBox%3D%270%200%2024%2024%27%3E%3Ccircle%20cx%3D%2712%27%20cy%3D%2712%27%20r%3D%2710%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3Cpath%20d%3D%27M9.09%209a3%203%200%20015.83%201c0%202-3%203-3%203%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3Cline%20x1%3D%2712%27%20y1%3D%2717%27%20x2%3D%2712.01%27%20y2%3D%2717%27%20fill%3D%27none%27%20stroke%3D%27%23000%27%20stroke-width%3D%272%27%2F%3E%3C%2Fsvg%3E");
  }

  /* Hide sub-menus on mobile - top-level nav only */
  .nav-dropdown { display: flex; flex-wrap: wrap; align-items: center; }
  .nav-dropdown > a { flex: 1; }
  .nav-dropdown-menu, .nav-mega-menu { display: none !important; position: static !important; width: 100%; order: 10; }
  .nav-dropdown.touch-open .nav-dropdown-menu, .nav-dropdown.touch-open .nav-mega-menu { display: block !important; position: static !important; }
  /* Mobile: mega-menu single column + two-level collapsible */
    /* Mobile mega-menu: category titles with dropdown toggle, subs hidden */
  .nav-mega-menu { position: static !important; left: auto !important; transform: none !important; width: 100% !important; max-width: 100% !important; min-width: auto !important; padding: 0 !important; border-radius: 0 !important; border: none !important; box-shadow: none !important; }
  .nav-mega-grid { display: block !important; grid-template-columns: none !important; width: 100% !important; max-width: 100% !important; gap: 0 !important; }
  .nav-mega-cat { display: block !important; width: 100% !important; max-width: 100% !important; }
  .nav-mega-cat-title { display: flex !important; align-items: center !important; justify-content: space-between !important; font-size: 15px !important; font-weight: 700 !important; color: var(--primary) !important; padding: 12px 16px !important; text-decoration: none !important; border-bottom: 1px solid var(--border) !important; cursor: pointer; }
  .nav-mega-cat-title::after { content: "▼"; font-size: 11px; flex-shrink: 0; transition: transform 0.2s; }
  .nav-mega-cat.expanded .nav-mega-cat-title::after { content: "▲"; }
  .nav-mega-subs { display: none !important; width: 100% !important; }
  .nav-mega-cat.expanded .nav-mega-subs { display: block !important; }
  .nav-mega-subs a { display: flex !important; align-items: center !important; width: 100% !important; max-width: 100% !important; box-sizing: border-box !important; padding: 11px 16px 11px 40px !important; font-size: 14px !important; color: var(--text-light) !important; text-decoration: none !important; border-bottom: 1px solid var(--bg-light) !important; }
  .nav-mega-subs a:active { background: var(--bg-light) !important; }
  .lang-globe { display: flex; padding: 8px; }
  .lang-switch > .lang-btn { display: none; }
  .lang-switch { gap: 0; background: none; padding: 0; margin-left: 0; }
  .lang-picker { top: 54px; right: 8px; }
  .lang-switch { margin-left: auto; }
  .header-inner { padding: 8px 12px; min-height: 48px; }
  .footer-top { flex-direction: column; gap: 16px; text-align: center; }
  .footer-contact { flex-direction: column; gap: 12px; }
  .footer-contact li { flex: none; width: 100%; }
  .footer-contact a { justify-content: center; word-break: break-all; }
  .footer-bottom-row { flex-direction: column; gap: 16px; text-align: center; }
  .footer-copyright { text-align: center; }
}

  /* Responsive form grid: single column on narrow screens */
  form div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}