/* CSS Standard Reset & Variables */
    :root {
      --primary: #059669;
      --primary-hover: #047857;
      --primary-light: #ecfdf5;
      --accent: #10b981;
      --accent-light: #d1fae5;
      --bg-main: #f8fafc;
      --bg-white: #ffffff;
      --text-dark: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 8px rgba(5, 150, 105, 0.06);
      --shadow-md: 0 4px 20px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 10px 30px rgba(5, 150, 105, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-dark);
      line-height: 1.6;
    }

    body {
      background-color: var(--bg-main);
      overflow-x: hidden;
    }

    /* Container Standard Grid System */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    /* Typography */
    h1, h2, h3, h4 {
      color: var(--text-dark);
      font-weight: 700;
      line-height: 1.3;
    }

    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; text-align: center; margin-bottom: 0.5rem; }
    h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
    p { color: var(--text-muted); font-size: 0.95rem; }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: var(--transition);
    }

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

    .section-header {
      text-align: center;
      margin-bottom: 2.5rem;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 12px;
      background-color: var(--primary-light);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: 50px;
      margin-bottom: 0.5rem;
      border: 1px solid var(--accent-light);
    }

    .section-desc {
      max-width: 700px;
      margin: 0.5rem auto 0;
      color: var(--text-light);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 26px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: none;
      transition: var(--transition);
      text-decoration: none;
      gap: 8px;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(5, 150, 105, 0.3);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(5, 150, 105, 0.4);
    }

    .btn-outline {
      background-color: transparent;
      color: var(--primary) !important;
      border: 2px solid var(--primary);
    }

    .btn-outline:hover {
      background-color: var(--primary-light);
      transform: translateY(-2px);
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    /* .nav-links strict gap 0 constraint */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 0;
    }

    .nav-links li {
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      padding: 10px 14px;
      color: var(--text-dark);
      font-weight: 500;
      font-size: 0.9rem;
      border-radius: var(--radius-sm);
    }

    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-dark);
      cursor: pointer;
    }

    /* Section Component Spacing */
    .section-padding {
      padding: 4rem 0;
    }

    .bg-white-section {
      background-color: var(--bg-white);
    }

    /* HERO SECTION - NO IMAGES STRICT RULE */
    .hero-section {
      padding: 4.5rem 0 3.5rem;
      background: linear-gradient(135deg, #ecfdf5 0%, #ffffff 50%, #f0fdf4 100%);
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #a7f3d0;
      border-radius: 50px;
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 1.2rem;
      box-shadow: 0 2px 10px rgba(5, 150, 105, 0.08);
    }

    .hero-title {
      font-size: 2.2rem;
      max-width: 900px;
      margin: 0 auto 1.2rem;
      letter-spacing: -0.5px;
      color: var(--text-dark);
    }

    .hero-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 2rem;
      line-height: 1.7;
    }

    .hero-buttons {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 3rem;
      flex-wrap: wrap;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 2rem;
    }

    .metric-card {
      background: var(--bg-white);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }

    .metric-number {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 0.85rem;
      color: var(--text-light);
    }

    /* Models Aggregation Cloud */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 1.5rem;
    }

    .model-tag {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 50px;
      font-size: 0.82rem;
      color: var(--text-dark);
      font-weight: 500;
      transition: var(--transition);
    }

    .model-tag:hover {
      background-color: var(--primary-light);
      border-color: var(--accent);
      color: var(--primary);
    }

    /* Cards Grid Layouts */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }

    .card-icon {
      width: 48px;
      height: 48px;
      background-color: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 16px;
      font-weight: bold;
    }

    .card-title {
      font-size: 1.15rem;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

    .card-text {
      color: var(--text-muted);
      font-size: 0.9rem;
      flex-grow: 1;
    }

    /* Industry Solutions Scenarios */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scenario-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 20px;
      transition: var(--transition);
    }

    .scenario-card:hover {
      box-shadow: var(--shadow-sm);
      border-color: var(--primary);
    }

    .scenario-tag {
      font-size: 0.75rem;
      background: var(--primary-light);
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
      font-weight: 600;
    }

    /* Comparison Table Section */
    .rating-banner {
      background: linear-gradient(135deg, #059669 0%, #10b981 100%);
      color: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 2rem;
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-stars {
      font-size: 1.3rem;
      color: #fef08a;
    }

    .rating-score {
      font-size: 2.2rem;
      font-weight: 800;
      line-height: 1;
    }

    .comparison-table-wrapper {
      overflow-x: auto;
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    table.comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.9rem;
    }

    table.comparison-table th, table.comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    table.comparison-table th {
      background-color: #f1f5f9;
      color: var(--text-dark);
      font-weight: 700;
    }

    table.comparison-table tr:hover {
      background-color: #f8fafc;
    }

    .highlight-cell {
      background-color: var(--primary-light);
      color: var(--primary);
      font-weight: 700;
    }

    /* Step Workflow */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

    .step-number {
      font-size: 2.5rem;
      font-weight: 900;
      color: #e2e8f0;
      position: absolute;
      top: 10px;
      right: 15px;
      line-height: 1;
    }

    .step-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      position: relative;
      z-index: 1;
    }

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

    .case-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: var(--transition);
    }

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

    .case-img-holder {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #e2e8f0;
    }

    .ai-page-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }

    .case-card:hover .ai-page-image {
      transform: scale(1.05);
    }

    .case-body {
      padding: 20px;
    }

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

    .review-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar {
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .review-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    .review-role {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    .review-content {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-style: italic;
    }

    /* FAQ Accordion */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 600;
      color: var(--text-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      transition: var(--transition);
    }

    .faq-question:hover {
      background-color: var(--primary-light);
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background-color: #fafafa;
    }

    .faq-answer-content {
      padding: 18px 24px;
      color: var(--text-muted);
      font-size: 0.9rem;
      border-top: 1px solid var(--border-color);
    }

    .faq-item.active .faq-answer {
      max-height: 500px;
      transition: max-height 0.3s ease-in-out;
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(180deg);
    }

    /* Contact & Form Section */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .contact-info {
      background: var(--bg-white);
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

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

    .contact-icon {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    .qr-container {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .qr-container img {
      width: 110px;
      height: 110px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .form-wrapper {
      background: var(--bg-white);
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-dark);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    /* Footer Navigation & Credits */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 3.5rem 0 1.5rem;
      font-size: 0.88rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 2.5rem;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 1rem;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 8px;
    }

    .footer-links a {
      color: #94a3b8;
    }

    .footer-links a:hover {
      color: #ffffff;
    }

    .friend-links-box {
      background: rgba(255, 255, 255, 0.05);
      border-radius: var(--radius-sm);
      padding: 16px;
      margin-bottom: 2rem;
    }

    .friend-links-box h5 {
      color: #e2e8f0;
      margin-bottom: 10px;
      font-size: 0.85rem;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links-list a {
      color: #94a3b8;
      font-size: 0.82rem;
    }

    .friend-links-list a:hover {
      color: #34d399;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 1.5rem;
      text-align: center;
      color: #64748b;
      font-size: 0.8rem;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
      cursor: pointer;
      text-decoration: none;
      transition: var(--transition);
      font-size: 1.1rem;
    }

    .float-btn:hover {
      background: var(--primary-hover);
      transform: scale(1.1);
      color: #ffffff;
    }

    /* Media Queries Responsive Fixes */
    @media (max-width: 992px) {
      .services-grid, .cases-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenarios-grid, .metrics-grid, .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .contact-container {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 16px;
      }
      .hero-title {
        font-size: 1.6rem;
      }
      .services-grid, .cases-grid, .reviews-grid, .scenarios-grid, .metrics-grid, .steps-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }