:root {
      --primary: #0d9488;
      --primary-dark: #0f766e;
      --primary-light: #14b8a6;
      --accent: #f59e0b;
      --dark: #0f172a;
      --dark-soft: #1e293b;
      --text: #334155;
      --text-light: #64748b;
      --bg: #f8fafc;
      --white: #ffffff;
      --border: #e2e8f0;
      --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.15);
      --radius: 12px;
      --radius-lg: 20px;
      --header-h: 72px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.7;
    }

    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }

    .container {
      width: min(1200px, 92vw);
      margin: 0 auto;
    }

    /* Header */
    .header {
      position: fixed;
      top: 0; left: 0; right: 0;
      height: var(--header-h);
      background: rgba(15, 23, 42, 0.92);
      backdrop-filter: blur(12px);
      z-index: 1000;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .header-inner {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--white);
      flex-shrink: 0;
    }

    .logo-mark {
      width: 42px; height: 42px;
      background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
      border-radius: 10px;
      display: grid;
      place-items: center;
      font-weight: 800;
      font-size: 14px;
      letter-spacing: -0.5px;
    }

    .logo-text strong {
      display: block;
      font-size: 15px;
      line-height: 1.3;
    }

    .logo-text span {
      font-size: 11px;
      color: rgba(255,255,255,0.55);
      letter-spacing: 1px;
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 4px;
      flex-wrap: nowrap;
      justify-content: center;
    }

    .nav a {
      color: rgba(255,255,255,0.82);
      font-size: 14px;
      padding: 8px 14px;
      border-radius: 8px;
      transition: all 0.2s;
      white-space: nowrap;
    }

    .nav a:hover { background: rgba(255,255,255,0.08); color: var(--white); }

    .nav-dropdown {
      position: relative;
    }

    .nav-dropdown::after {
      content: '';
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      height: 14px;
      z-index: 1000;
    }

    .nav-dropdown-toggle {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: rgba(255,255,255,0.82);
      font-size: 14px;
      padding: 8px 14px;
      border-radius: 8px;
      transition: all 0.2s;
      white-space: nowrap;
    }

    .nav-dropdown-toggle:hover,
    .nav-dropdown.open .nav-dropdown-toggle {
      background: rgba(255,255,255,0.08);
      color: var(--white);
    }

    .nav-dropdown-toggle.active,
    .nav-dropdown.active > .nav-dropdown-toggle {
      background: rgba(13,148,136,0.25);
      color: var(--white);
    }

    .nav-dropdown-chevron {
      font-size: 10px;
      opacity: 0.7;
      transition: transform 0.2s;
      pointer-events: none;
    }

    .nav-dropdown.open .nav-dropdown-chevron,
    .nav-dropdown:hover .nav-dropdown-chevron {
      transform: rotate(180deg);
    }

    .nav-dropdown-menu {
      display: none;
      position: absolute;
      top: calc(100% + 8px);
      left: 0;
      min-width: 160px;
      margin: 0;
      padding: 6px;
      list-style: none;
      background: rgba(15, 23, 42, 0.98);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 10px;
      box-shadow: 0 12px 32px rgba(0,0,0,0.35);
      z-index: 1001;
    }

    .nav-dropdown-menu::before {
      content: '';
      position: absolute;
      top: -10px;
      left: 0;
      right: 0;
      height: 10px;
    }

    .nav-dropdown-menu a {
      display: block;
      padding: 10px 14px;
    }

    .nav-dropdown-menu a.active {
      background: rgba(13,148,136,0.25);
      color: var(--white);
    }

    @media (min-width: 769px) {
      .nav-dropdown:hover .nav-dropdown-menu,
      .nav-dropdown:focus-within .nav-dropdown-menu {
        display: block;
      }
    }

    .header-cta {
      background: var(--primary);
      color: var(--white);
      padding: 10px 20px;
      border-radius: 8px;
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
      transition: background 0.2s;
    }

    .header-cta:hover { background: var(--primary-light); }

    .lang-dropdown {
      position: relative;
      flex-shrink: 0;
    }

    .lang-dropdown-toggle {
      display: flex;
      align-items: center;
      gap: 6px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 8px;
      color: var(--white);
      font-size: 13px;
      font-weight: 600;
      padding: 8px 12px;
      cursor: pointer;
      transition: all 0.2s;
      line-height: 1;
      white-space: nowrap;
    }

    .lang-dropdown-toggle:hover,
    .lang-dropdown.open .lang-dropdown-toggle {
      background: rgba(255,255,255,0.12);
      border-color: rgba(255,255,255,0.2);
    }

    .lang-dropdown-chevron {
      font-size: 10px;
      opacity: 0.7;
      transition: transform 0.2s;
    }

    .lang-dropdown.open .lang-dropdown-chevron {
      transform: rotate(180deg);
    }

    .lang-dropdown-menu {
      display: none;
      position: absolute;
      top: calc(100% + 6px);
      right: 0;
      min-width: 140px;
      margin: 0;
      padding: 6px;
      list-style: none;
      background: rgba(15, 23, 42, 0.98);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 10px;
      box-shadow: 0 12px 32px rgba(0,0,0,0.35);
      z-index: 1001;
    }

    .lang-dropdown.open .lang-dropdown-menu {
      display: block;
    }

    .lang-option {
      display: block;
      width: 100%;
      background: transparent;
      border: none;
      color: rgba(255,255,255,0.75);
      font-size: 13px;
      font-weight: 500;
      padding: 10px 12px;
      border-radius: 6px;
      cursor: pointer;
      text-align: left;
      transition: all 0.15s;
    }

    .lang-option:hover {
      background: rgba(255,255,255,0.08);
      color: var(--white);
    }

    .lang-option.active {
      background: var(--primary);
      color: var(--white);
    }

    /* Hero */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      align-items: center;
      color: var(--white);
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background: url('../image1.jpeg') center/cover no-repeat;
    }

    .hero-bg::after {
      content: '';
      position: absolute;
      inset: 0;
      background:
        linear-gradient(105deg, rgba(15, 23, 42, 0.55) 0%, rgba(15, 23, 42, 0.28) 45%, rgba(15, 118, 110, 0.15) 100%);
    }

    .hero-pattern {
      position: absolute;
      inset: 0;
      z-index: 1;
      background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
      background-size: 28px 28px;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      padding: calc(var(--header-h) + 60px) 0 80px;
      max-width: 760px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.15);
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 13px;
      margin-bottom: 24px;
    }

    .hero-tag::before {
      content: '';
      width: 8px; height: 8px;
      background: var(--accent);
      border-radius: 50%;
    }

    .hero h1 {
      font-size: clamp(32px, 5vw, 52px);
      line-height: 1.2;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .hero-sub {
      font-size: clamp(18px, 2.5vw, 24px);
      color: var(--primary-light);
      font-weight: 600;
      margin-bottom: 16px;
    }

    .hero-desc {
      font-size: 16px;
      color: rgba(255,255,255,0.78);
      margin-bottom: 36px;
      max-width: 620px;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: 10px;
      font-size: 15px;
      font-weight: 600;
      transition: all 0.2s;
      cursor: pointer;
      border: none;
    }

    .btn-primary {
      background: var(--primary);
      color: var(--white);
    }

    .btn-primary:hover { background: var(--primary-light); transform: translateY(-1px); }

    .btn-outline {
      background: transparent;
      color: var(--white);
      border: 1.5px solid rgba(255,255,255,0.35);
    }

    .btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }

    /* Stats bar */
    .stats-bar {
      background: var(--white);
      margin-top: -48px;
      position: relative;
      z-index: 2;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      padding: 32px 24px;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .stat-item strong {
      display: block;
      font-size: clamp(28px, 4vw, 36px);
      color: var(--primary-dark);
      font-weight: 800;
      line-height: 1.1;
    }

    .stat-item span {
      font-size: 14px;
      color: var(--text-light);
      margin-top: 6px;
      display: block;
    }

    /* Section common */
    section { padding: 96px 0; }

    .section-header {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 56px;
    }

    .section-label {
      display: inline-block;
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .section-header h2 {
      font-size: clamp(28px, 4vw, 38px);
      color: var(--dark);
      font-weight: 800;
      margin-bottom: 16px;
    }

    .section-header p {
      color: var(--text-light);
      font-size: 16px;
    }

    /* About */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .about-image {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .about-image img { width: 100%; height: 420px; object-fit: cover; }

    .about-image-badge {
      position: absolute;
      bottom: 24px; left: 24px;
      background: var(--white);
      padding: 16px 20px;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .about-image-badge strong {
      display: block;
      color: var(--primary-dark);
      font-size: 14px;
    }

    .about-image-badge span {
      font-size: 12px;
      color: var(--text-light);
    }

    .about-content h3 {
      font-size: 24px;
      color: var(--dark);
      margin-bottom: 16px;
    }

    .about-content p {
      margin-bottom: 16px;
      color: var(--text);
    }

    .feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .feature-item {
      background: var(--white);
      padding: 18px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
    }

    .feature-item h4 {
      font-size: 14px;
      color: var(--dark);
      margin-bottom: 6px;
    }

    .feature-item p {
      font-size: 13px;
      color: var(--text-light);
      margin: 0;
    }

    /* Vision cards */
    .vision-section { background: var(--dark); color: var(--white); }

    .vision-section .section-header h2 { color: var(--white); }
    .vision-section .section-header p { color: rgba(255,255,255,0.65); }

    .vision-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .vision-card {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius-lg);
      padding: 32px;
      transition: transform 0.2s, border-color 0.2s;
    }

    .vision-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary-light);
    }

    .vision-card .icon {
      width: 48px; height: 48px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      border-radius: 12px;
      display: grid;
      place-items: center;
      font-size: 22px;
      margin-bottom: 20px;
    }

    .vision-card h3 {
      font-size: 18px;
      margin-bottom: 12px;
    }

    .vision-card p {
      font-size: 14px;
      color: rgba(255,255,255,0.7);
      line-height: 1.8;
    }

    /* Business */
    .business-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .business-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .business-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }

    .business-card-img {
      height: 200px;
      overflow: hidden;
    }

    .business-card-img img {
      width: 100%; height: 100%;
      object-fit: cover;
      transition: transform 0.4s;
    }

    .business-card:hover .business-card-img img { transform: scale(1.05); }

    .business-card-body { padding: 28px; }

    .business-card-body h3 {
      font-size: 20px;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .business-card-body > p {
      font-size: 14px;
      color: var(--text-light);
      margin-bottom: 16px;
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag {
      background: rgba(13, 148, 136, 0.1);
      color: var(--primary-dark);
      font-size: 12px;
      padding: 4px 12px;
      border-radius: 999px;
      font-weight: 500;
    }

    /* Strength */
    .strength-section { background: linear-gradient(180deg, #ecfdf5 0%, var(--bg) 100%); }

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

    .strength-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      text-align: center;
      box-shadow: var(--shadow);
      border-top: 4px solid var(--primary);
    }

    .strength-card .num {
      font-size: 42px;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1;
    }

    .strength-card .unit {
      font-size: 16px;
      color: var(--primary);
      font-weight: 600;
    }

    .strength-card h4 {
      margin: 12px 0 8px;
      color: var(--dark);
      font-size: 16px;
    }

    .strength-card p {
      font-size: 13px;
      color: var(--text-light);
    }

    /* Certifications */
    .cert-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .cert-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow);
      display: flex;
      gap: 20px;
      align-items: flex-start;
    }

    .cert-icon {
      width: 56px; height: 56px;
      background: linear-gradient(135deg, #fef3c7, #fde68a);
      border-radius: 14px;
      display: grid;
      place-items: center;
      font-size: 26px;
      flex-shrink: 0;
    }

    .cert-card h3 {
      font-size: 17px;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .cert-card p {
      font-size: 14px;
      color: var(--text-light);
    }

    /* Products */
    .products-section { background: var(--dark-soft); color: var(--white); }
    .products-section .section-header h2 { color: var(--white); }
    .products-section .section-header p { color: rgba(255,255,255,0.65); }

    .product-tabs {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .product-tab {
      padding: 10px 24px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid rgba(255,255,255,0.2);
      background: transparent;
      color: rgba(255,255,255,0.7);
      transition: all 0.2s;
    }

    .product-tab.active,
    .product-tab:hover {
      background: var(--primary);
      border-color: var(--primary);
      color: var(--white);
    }

    .product-panel { display: none; }
    .product-panel.active { display: block; }

    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .product-card {
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: border-color 0.2s;
    }

    .product-card:hover { border-color: var(--primary-light); }

    .product-card h3 {
      font-size: 17px;
      margin-bottom: 16px;
      color: var(--primary-light);
    }

    .product-spec {
      display: flex;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
      font-size: 14px;
    }

    .product-spec:last-child { border-bottom: none; }
    .product-spec span:first-child { color: rgba(255,255,255,0.55); }
    .product-spec span:last-child { font-weight: 600; }

    .product-desc {
      margin-top: 16px;
      font-size: 13px;
      color: rgba(255,255,255,0.6);
      line-height: 1.7;
    }

    /* Cases */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: var(--white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .case-card-header {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      color: var(--white);
      padding: 24px;
    }

    .case-card-header h3 {
      font-size: 16px;
      line-height: 1.5;
      margin-bottom: 12px;
    }

    .case-meta {
      display: flex;
      gap: 16px;
      font-size: 13px;
      opacity: 0.85;
    }

    .case-card-body {
      padding: 20px 24px;
      font-size: 14px;
      color: var(--text-light);
    }

    .case-highlight {
      margin-top: 48px;
      background: var(--white);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr 1fr;
    }

    .case-highlight-img img {
      width: 100%;
      height: 100%;
      min-height: 360px;
      object-fit: cover;
    }

    .case-highlight-content {
      padding: 40px;
    }

    .case-highlight-content h3 {
      font-size: 22px;
      color: var(--dark);
      margin-bottom: 20px;
    }

    .case-highlight-content p {
      font-size: 14px;
      color: var(--text);
      margin-bottom: 16px;
    }

    .case-points {
      list-style: none;
      margin-top: 20px;
    }

    .case-points li {
      padding: 10px 0 10px 24px;
      position: relative;
      font-size: 14px;
      color: var(--text);
      border-bottom: 1px solid var(--border);
    }

    .case-points li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--primary);
      font-weight: 700;
    }

    /* Culture */
    .culture-section { background: var(--bg); }

    .culture-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }

    .culture-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow);
      border-bottom: 3px solid transparent;
      transition: border-color 0.2s;
    }

    .culture-card:hover { border-bottom-color: var(--primary); }

    .culture-num {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      opacity: 0.3;
      margin-bottom: 8px;
    }

    .culture-card h4 {
      font-size: 16px;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .culture-card p {
      font-size: 13px;
      color: var(--text-light);
    }

    .culture-bottom {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .culture-bottom-card {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      color: var(--white);
      border-radius: var(--radius-lg);
      padding: 32px;
      text-align: center;
    }

    .culture-bottom-card h4 {
      font-size: 18px;
      margin-bottom: 10px;
    }

    .culture-bottom-card p {
      font-size: 14px;
      opacity: 0.85;
    }

    /* Contact */
    .contact-section {
      background: var(--dark);
      color: var(--white);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .contact-info h2 {
      font-size: 32px;
      margin-bottom: 16px;
    }

    .contact-info > p {
      color: rgba(255,255,255,0.65);
      margin-bottom: 32px;
    }

    .contact-item {
      display: flex;
      gap: 16px;
      margin-bottom: 20px;
      align-items: flex-start;
    }

    .contact-item-icon {
      width: 44px; height: 44px;
      background: rgba(255,255,255,0.08);
      border-radius: 10px;
      display: grid;
      place-items: center;
      font-size: 18px;
      flex-shrink: 0;
    }

    .contact-item strong {
      display: block;
      font-size: 13px;
      color: rgba(255,255,255,0.5);
      margin-bottom: 4px;
    }

    .contact-item span {
      font-size: 15px;
    }

    .contact-form {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: var(--radius-lg);
      padding: 36px;
    }

    .contact-form h3 {
      font-size: 20px;
      margin-bottom: 24px;
    }

    .form-group { margin-bottom: 16px; }

    .form-group label {
      display: block;
      font-size: 13px;
      color: rgba(255,255,255,0.6);
      margin-bottom: 6px;
    }

    .form-group input,
    .form-group textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: 8px;
      border: 1px solid rgba(255,255,255,0.15);
      background: rgba(255,255,255,0.06);
      color: var(--white);
      font-size: 14px;
      font-family: inherit;
    }

    .form-group textarea { min-height: 100px; resize: vertical; }

    .form-group input:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: var(--primary-light);
    }

    /* Footer */
    .footer {
      background: #020617;
      color: rgba(255,255,255,0.45);
      padding: 32px 0;
      text-align: center;
      font-size: 13px;
    }

    .footer strong { color: rgba(255,255,255,0.7); }

    /* Responsive */
    @media (max-width: 1024px) {
      .stats-grid { grid-template-columns: repeat(2, 1fr); }
      .about-grid, .case-highlight, .contact-grid { grid-template-columns: 1fr; }
      .vision-grid, .product-grid, .cases-grid { grid-template-columns: repeat(2, 1fr); }
      .strength-grid, .culture-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .nav { display: none; }
      .business-grid, .cert-grid, .vision-grid,
      .product-grid, .cases-grid, .culture-grid,
      .culture-bottom, .strength-grid { grid-template-columns: 1fr; }
      .feature-list { grid-template-columns: 1fr; }
      section { padding: 64px 0; }
    }

/* ===== Inner pages ===== */
body.inner-page { background: var(--bg); }

.sub-hero {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: center;
  color: var(--white);
  overflow: hidden;
}
.sub-hero-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(15,23,42,0.93) 0%, rgba(15,118,110,0.72) 55%, rgba(15,23,42,0.5) 100%),
    var(--hero-img) center/cover no-repeat;
}
.sub-hero-pattern {
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}
.sub-hero-inner {
  position: relative; z-index: 1;
  padding: calc(var(--header-h) + 48px) 0 64px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: end;
}
.sub-hero-main { max-width: 620px; }
.sub-hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--primary-light); margin-bottom: 14px; font-weight: 600;
}
.sub-hero-tag::before {
  content: ''; width: 32px; height: 2px; background: var(--accent); border-radius: 2px;
}
.sub-hero h1 {
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 800; line-height: 1.15; margin-bottom: 14px;
}
.sub-hero-desc { font-size: 16px; color: rgba(255,255,255,0.78); line-height: 1.8; margin-bottom: 18px; }
.breadcrumb { font-size: 13px; color: rgba(255,255,255,0.45); }
.breadcrumb a { color: rgba(255,255,255,0.7); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary-light); }

.sub-hero-cards {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.sub-hero-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  padding: 18px 16px;
}
.sub-hero-card strong {
  display: block; font-size: 22px; color: var(--primary-light); font-weight: 800; line-height: 1.1;
}
.sub-hero-card span { font-size: 12px; color: rgba(255,255,255,0.55); margin-top: 4px; display: block; }

.page-block { padding: 88px 0; }
.page-block--white { background: var(--white); }
.page-block--soft { background: linear-gradient(180deg, #ecfdf5 0%, var(--bg) 100%); }
.page-block--dark { background: var(--dark); color: var(--white); }
.page-block--dark-soft { background: var(--dark-soft); color: var(--white); }

.section-intro { margin-bottom: 48px; max-width: 720px; }
.section-intro.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-intro .section-label { margin-bottom: 10px; }
.section-intro h2 { font-size: clamp(24px, 3vw, 32px); color: var(--dark); font-weight: 800; margin-bottom: 12px; }
.section-intro p { color: var(--text-light); font-size: 15px; line-height: 1.8; }
.page-block--dark .section-intro h2,
.page-block--dark-soft .section-intro h2 { color: var(--white); }
.page-block--dark .section-intro p,
.page-block--dark-soft .section-intro p { color: rgba(255,255,255,0.65); }
.page-block--dark .section-intro .section-label,
.page-block--dark-soft .section-intro .section-label { color: var(--primary-light); }

.inner-page section.vision-section,
.inner-page section.products-section,
.inner-page section.contact-section { padding: 88px 0; }

.products-page { padding: 0 !important; }
.products-page-head {
  padding: calc(var(--header-h) + 48px) 0 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background:
    linear-gradient(180deg, rgba(15,23,42,0.75) 0%, transparent 100%),
    url('../image60.jpeg') center/cover no-repeat;
  background-color: var(--dark-soft);
}
.products-page-body { padding: 48px 0 88px; }

.split-feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.split-feature.reverse { direction: rtl; }
.split-feature.reverse > * { direction: ltr; }
.split-feature-img {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); position: relative;
}
.split-feature-img img { width: 100%; height: 400px; object-fit: cover; }
.split-feature-img .float-badge {
  position: absolute; bottom: 20px; left: 20px;
  background: var(--white); padding: 14px 18px; border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.split-feature-img .float-badge strong { display: block; color: var(--primary-dark); font-size: 14px; }
.split-feature-img .float-badge span { font-size: 12px; color: var(--text-light); }
.split-feature-text h3 { font-size: 26px; color: var(--dark); margin-bottom: 16px; font-weight: 800; }
.split-feature-text p { color: var(--text); margin-bottom: 14px; line-height: 1.85; }

.business-grid--page .business-card-img { height: 260px; }
.business-grid--page .business-card { border: 1px solid var(--border); }
.business-grid--page .business-card-body h3 { font-size: 21px; }

.strength-showcase {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 48px;
}
.strength-showcase .strength-card {
  border-top: none;
  border-left: 4px solid var(--primary);
  text-align: left; padding: 28px 24px;
}
.strength-showcase .strength-card .num { font-size: 36px; }

.cert-grid--page .cert-card {
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.cert-grid--page .cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13,148,136,0.3);
}

.cases-grid--page .case-card { transition: transform 0.2s, box-shadow 0.2s; }
.cases-grid--page .case-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.culture-hero-quote {
  text-align: center; max-width: 680px; margin: 0 auto 56px;
  font-size: 18px; color: var(--text); line-height: 1.9;
  padding: 32px 40px; background: var(--white);
  border-radius: var(--radius-lg); box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}

.contact-page-wrap .contact-section { padding: 0; background: transparent; }
.contact-page-wrap .contact-grid { align-items: stretch; }
.contact-page-wrap .contact-form { background: var(--white); border: 1px solid var(--border); }
.contact-page-wrap .contact-form h3 { color: var(--dark); }
.contact-page-wrap .form-group label { color: var(--text-light); }
.contact-page-wrap .form-group input,
.contact-page-wrap .form-group textarea {
  background: var(--bg); border-color: var(--border); color: var(--dark);
}
.contact-info-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 36px; box-shadow: var(--shadow); border: 1px solid var(--border);
}
.contact-info-card h2 { font-size: 28px; color: var(--dark); margin-bottom: 12px; font-weight: 800; }
.contact-info-card > p { color: var(--text-light); margin-bottom: 28px; }
.contact-page-wrap .contact-item-icon { background: rgba(13,148,136,0.1); }
.contact-page-wrap .contact-item strong { color: var(--text-light); }
.contact-page-wrap .contact-item span { color: var(--dark); }

.page-cta {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #0e7490 50%, var(--primary) 100%);
  padding: 64px 0; color: var(--white); text-align: center;
  position: relative; overflow: hidden;
}
.page-cta::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 20px 20px;
}
.page-cta-inner { position: relative; z-index: 1; }
.page-cta h2 { font-size: clamp(22px, 3vw, 30px); font-weight: 800; margin-bottom: 12px; }
.page-cta p { opacity: 0.85; margin-bottom: 24px; font-size: 15px; }
.page-cta .btn-outline { border-color: rgba(255,255,255,0.5); margin-left: 12px; }

.ppt-gallery { display: grid; gap: 16px; margin-top: 40px; }
.ppt-gallery--2 { grid-template-columns: repeat(2, 1fr); }
.ppt-gallery--3 { grid-template-columns: repeat(3, 1fr); }
.ppt-gallery--4 { grid-template-columns: repeat(4, 1fr); }
.ppt-gallery figure { margin: 0; overflow: hidden; border-radius: var(--radius-lg); box-shadow: var(--shadow); background: var(--white); border: 1px solid var(--border); }
.ppt-gallery img { width: 100%; height: 220px; object-fit: cover; display: block; transition: transform 0.35s; }
.ppt-gallery figure:hover img { transform: scale(1.04); }
.ppt-gallery figcaption { padding: 10px 14px; font-size: 13px; color: var(--text-light); text-align: center; }

.cert-photos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; max-width: 960px; margin-left: auto; margin-right: auto; }
.cert-photo { background: var(--white); padding: 14px; border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow); text-align: center; }
.cert-photo img { width: 100%; height: 220px; object-fit: contain; background: #f8fafc; border-radius: 8px; }
.cert-photo span { display: block; font-size: 13px; color: var(--text-light); margin-top: 10px; }

.product-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; margin-bottom: 28px; }
.product-showcase img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); background: rgba(255,255,255,0.04); }
.product-showcase-list .product-showcase { padding: 24px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg); }

.media-feature { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: center; margin-top: 48px; background: var(--white); padding: 28px; border-radius: var(--radius-lg); box-shadow: var(--shadow); border: 1px solid var(--border); }
.media-feature img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.media-feature-text h3 { font-size: 20px; color: var(--dark); margin-bottom: 12px; }
.media-feature-text p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

.case-photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.case-photo-grid img { width: 100%; height: 260px; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow); }

.culture-banner img { width: 100%; max-height: 420px; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); margin-bottom: 48px; }

.contact-photo img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }

.home-gallery { padding: 72px 0; background: var(--white); }

.nav a.active { background: rgba(13,148,136,0.25); color: var(--white); }
.quick-entry { padding: 72px 0; }
.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.quick-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 28px 24px;
  box-shadow: var(--shadow); transition: transform 0.2s, box-shadow 0.2s; border-top: 3px solid var(--primary);
}
.quick-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.quick-card .icon { font-size: 32px; margin-bottom: 12px; }
.quick-card h3 { font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.quick-card p { font-size: 13px; color: var(--text-light); margin-bottom: 16px; }
.quick-card .link { font-size: 14px; color: var(--primary); font-weight: 600; }
.intro-brief { padding: 72px 0; }
.footer-main { background: #0f172a; color: rgba(255,255,255,0.6); padding: 48px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-brand strong { display: block; color: var(--white); font-size: 16px; margin-bottom: 12px; }
.footer-brand p { font-size: 13px; line-height: 1.8; }
.footer-col h4 { color: var(--white); font-size: 14px; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.55); padding: 4px 0; transition: color 0.2s; }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }
.mobile-nav-toggle { display: none; background: none; border: none; color: white; font-size: 24px; cursor: pointer; padding: 4px 8px; }

@media (max-width: 1024px) {
  .sub-hero-inner { grid-template-columns: 1fr; }
  .sub-hero-cards { max-width: 420px; }
  .split-feature { grid-template-columns: 1fr; }
  .split-feature.reverse { direction: ltr; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .strength-showcase { grid-template-columns: repeat(2, 1fr); }
  .product-showcase, .media-feature { grid-template-columns: 1fr; }
  .ppt-gallery--4 { grid-template-columns: repeat(2, 1fr); }
  .cert-photos { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sub-hero { min-height: 320px; }
  .sub-hero-cards { grid-template-columns: 1fr 1fr; }
  .page-block { padding: 64px 0; }
  .quick-grid, .footer-grid, .strength-showcase,
  .ppt-gallery--2, .ppt-gallery--3, .ppt-gallery--4,
  .cert-photos, .case-photo-grid { grid-template-columns: 1fr; }
  .mobile-nav-toggle { display: block; }
  .nav {
    display: none; position: fixed; top: var(--header-h); left: 0; right: 0;
    background: rgba(15,23,42,0.98); flex-direction: column; padding: 16px; z-index: 999;
  }
  .nav.open { display: flex; }
  .nav-dropdown { width: 100%; }
  .nav-dropdown-toggle { width: 100%; justify-content: space-between; }
  .nav-dropdown-menu {
    position: static;
    display: none;
    width: 100%;
    margin-top: 4px;
    box-shadow: none;
    background: rgba(255,255,255,0.04);
    border: none;
    padding: 4px 0 4px 12px;
  }
  .nav-dropdown.open .nav-dropdown-menu { display: block; }
  .page-cta .btn-outline { margin-left: 0; margin-top: 12px; }
  .lang-dropdown-toggle { padding: 7px 10px; font-size: 12px; }
  .header-cta { padding: 8px 14px; font-size: 13px; }
}