:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --accent-coral: #ff5722;
      --accent-amber: #f59e0b;
      --accent-cyan: #06b6d4;
      --accent-purple: #7c3aed;
      --bg-base: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-bright: #cbd5e1;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 20px 35px -5px rgba(37, 99, 235, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.04);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* Container Standard */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* Typography & Badges */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .badge-coral {
      background: #fff1ed;
      color: var(--accent-coral);
      border: 1px solid #ffccbc;
    }
    .badge-blue {
      background: #eff6ff;
      color: var(--primary);
      border: 1px solid #bfdbfe;
    }
    .badge-purple {
      background: #f5f3ff;
      color: var(--accent-purple);
      border: 1px solid #ddd6fe;
    }

    .section-head {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px;
    }
    .section-head h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-top: 12px;
      margin-bottom: 14px;
      line-height: 1.3;
    }
    .section-head p {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-logo-wrap img.ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }
    .brand-name-group {
      display: flex;
      flex-direction: column;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
    }
    .brand-subtitle {
      font-size: 0.72rem;
      color: var(--accent-coral);
      font-weight: 700;
      letter-spacing: 0.5px;
    }

    /* Strict Rule: .nav-links gap: 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li {
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover {
      color: var(--primary);
      background-color: #eff6ff;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      text-decoration: none;
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
    }
    .btn-contrast {
      background: linear-gradient(135deg, var(--accent-coral) 0%, #e64a19 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 87, 34, 0.35);
    }
    .btn-contrast:hover {
      background: linear-gradient(135deg, #e64a19 0%, #d84315 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 87, 34, 0.45);
    }
    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border-color: var(--border-bright);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #eff6ff;
    }

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

    /* Section Global Spacing */
    section {
      padding: 70px 0;
      position: relative;
    }

    /* HERO SECTION (NO IMAGES PER RULE) */
    .hero-section {
      padding: 90px 0 70px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 87, 34, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
                  #f8fafc;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }
    .hero-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }
    .hero-badge-group {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-bottom: 24px;
    }
    .hero-h1 {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span.highlight-blue {
      color: var(--primary);
    }
    .hero-h1 span.highlight-coral {
      color: var(--accent-coral);
    }
    .hero-desc {
      font-size: 1.18rem;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 820px;
      margin-bottom: 36px;
    }
    .hero-cta-box {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
    }
    .hero-cta-box .btn {
      padding: 14px 32px;
      font-size: 1.05rem;
    }

    /* Hero Geometric Dashboard (Pure CSS Graphic) */
    .hero-metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      width: 100%;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .metric-card {
      padding: 12px;
      border-right: 1px solid var(--border-color);
      text-align: center;
    }
    .metric-card:last-child {
      border-right: none;
    }
    .metric-num {
      font-size: 2.1rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 4px;
    }
    .metric-num.coral { color: var(--accent-coral); }
    .metric-num.amber { color: var(--accent-amber); }
    .metric-num.purple { color: var(--accent-purple); }
    .metric-label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* Models Marquee Ribbon */
    .models-marquee-section {
      background: #ffffff;
      padding: 28px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .marquee-label {
      text-align: center;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 16px;
      letter-spacing: 1px;
    }
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }
    .model-pill {
      display: inline-block;
      padding: 6px 14px;
      background: #f1f5f9;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      font-size: 0.82rem;
      font-weight: 700;
      color: #334155;
      transition: var(--transition);
    }
    .model-pill:hover {
      background: #eff6ff;
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* Grid Layouts */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    /* Card Standard Styles */
    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }
    .feature-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: transparent;
      transition: var(--transition);
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .feature-card:hover::before {
      background: linear-gradient(90deg, var(--primary), var(--accent-coral));
    }
    .card-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 18px;
      background: #eff6ff;
      color: var(--primary);
      border: 1px solid #dbeafe;
    }
    .card-icon-box.coral {
      background: #fff1ed;
      color: var(--accent-coral);
      border-color: #ffccbc;
    }
    .card-icon-box.purple {
      background: #f5f3ff;
      color: var(--accent-purple);
      border-color: #ddd6fe;
    }
    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }
    .card-tag-row {
      margin-top: 14px;
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }
    .mini-tag {
      font-size: 0.72rem;
      padding: 2px 8px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 4px;
      color: #64748b;
      font-weight: 600;
    }

    /* Comparison & Evaluation Section */
    .eval-highlight-box {
      background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      margin-bottom: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: var(--shadow-lg);
    }
    .eval-score-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .eval-big-score {
      font-size: 3.8rem;
      font-weight: 900;
      color: #fbbf24;
      line-height: 1;
    }
    .eval-stars {
      color: #f59e0b;
      font-size: 1.3rem;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }
    .eval-text h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 4px;
      color: #ffffff;
    }
    .eval-text p {
      color: #cbd5e1;
      font-size: 0.95rem;
    }

    /* Table Styles */
    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }
    .custom-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .custom-table tr:last-child td {
      border-bottom: none;
    }
    .custom-table tr.highlight-row {
      background: #f0f7ff;
      font-weight: 600;
    }
    .status-badge-ok {
      display: inline-block;
      padding: 4px 10px;
      background: #dcfce7;
      color: #15803d;
      border-radius: 999px;
      font-size: 0.78rem;
      font-weight: 700;
    }
    .status-badge-no {
      display: inline-block;
      padding: 4px 10px;
      background: #fee2e2;
      color: #b91c1c;
      border-radius: 999px;
      font-size: 0.78rem;
      font-weight: 700;
    }

    /* Process Workflow Timeline */
    .process-steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      transition: var(--transition);
    }
    .step-card:hover {
      border-color: var(--accent-coral);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .step-number {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--accent-coral);
      opacity: 0.8;
      margin-bottom: 8px;
    }
    .step-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Media Showcase Section */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
      margin-bottom: 32px;
    }
    .media-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .media-card-img-wrap {
      width: 100%;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }
    .media-card-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: var(--transition);
    }
    .media-card:hover .media-card-img-wrap img {
      transform: scale(1.02);
    }
    .media-card-body {
      padding: 20px 24px;
    }
    .media-card-body h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .media-card-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Reviews Section */
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .review-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--accent-amber);
    }
    .review-stars {
      color: #f59e0b;
      margin-bottom: 12px;
      font-size: 0.95rem;
    }
    .review-text {
      font-size: 0.92rem;
      color: #334155;
      line-height: 1.6;
      margin-bottom: 18px;
      font-style: italic;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }
    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.9rem;
    }
    .reviewer-info h5 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .reviewer-info span {
      font-size: 0.78rem;
      color: var(--text-light);
    }

    /* FAQ Accordion */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 700;
      font-size: 1.02rem;
      color: var(--text-main);
      user-select: none;
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: var(--transition);
      color: var(--primary);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--accent-coral);
    }
    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }
    .faq-item.active .faq-answer {
      display: block;
    }

    /* Requirement Matching Form & Contact */
    .contact-form-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .form-card {
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid var(--border-bright);
      border-radius: var(--radius-sm);
      background: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* Contact Details & QR Cards */
    .contact-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
    }
    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 20px;
    }
    .contact-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      flex-shrink: 0;
    }
    .contact-text h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .contact-text p, .contact-text a {
      font-size: 0.88rem;
      color: var(--text-muted);
      text-decoration: none;
    }
    .qr-container {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      margin-top: 10px;
    }
    .qr-container img {
      width: 96px;
      height: 96px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      display: block;
    }
    .qr-desc h5 {
      font-size: 0.92rem;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .qr-desc p {
      font-size: 0.78rem;
      color: var(--text-light);
      line-height: 1.4;
    }

    /* Article List & Knowledge Base */
    .article-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
    }
    .article-pill-link {
      display: inline-block;
      padding: 8px 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: var(--primary);
      font-weight: 600;
      text-decoration: none;
      transition: var(--transition);
    }
    .article-pill-link:hover {
      background: #eff6ff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* Footer & SEO Links */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-brand-info h4 {
      color: #ffffff;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .footer-brand-info p {
      font-size: 0.88rem;
      line-height: 1.6;
      color: #94a3b8;
      margin-bottom: 16px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
      border-left: 3px solid var(--accent-coral);
      padding-left: 8px;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 8px;
    }
    .footer-links-list a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.88rem;
      transition: var(--transition);
    }
    .footer-links-list a:hover {
      color: #ffffff;
      padding-left: 4px;
    }
    .friendly-links-bar {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-bottom: 24px;
    }
    .friendly-links-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: #cbd5e1;
      margin-bottom: 10px;
    }
    .friendly-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }
    .friendly-links-group a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.82rem;
      transition: var(--transition);
    }
    .friendly-links-group a:hover {
      color: var(--accent-coral);
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      text-align: center;
      font-size: 0.82rem;
      color: #64748b;
    }

    /* 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;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      color: var(--text-main);
      font-size: 1.2rem;
      border: 1px solid var(--border-color);
      cursor: pointer;
      transition: var(--transition);
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-3px);
    }
    .float-btn.cs-btn {
      background: var(--accent-coral);
      color: #ffffff;
      border: none;
    }
    .float-btn.cs-btn:hover {
      background: #e64a19;
    }

    /* Responsive Queries */
    @media (max-width: 1024px) {
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .process-steps-row { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .hero-metrics-bar { grid-template-columns: repeat(2, 1fr); }
      .metric-card { border-right: none; border-bottom: 1px solid var(--border-color); }
      .metric-card:nth-last-child(-n+2) { border-bottom: none; }
    }

    @media (max-width: 768px) {
      .grid-3, .grid-2 { grid-template-columns: 1fr; }
      .media-showcase-grid { grid-template-columns: 1fr; }
      .nav-links { display: none; }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        padding: 16px 20px;
        border-bottom: 2px solid var(--primary);
        box-shadow: var(--shadow-lg);
      }
      .nav-links.active li a {
        padding: 12px 0;
        border-bottom: 1px solid #f1f5f9;
      }
      .mobile-menu-btn { display: block; }
      .hero-h1 { font-size: 2.1rem; }
      .hero-desc { font-size: 1rem; }
      .eval-highlight-box { flex-direction: column; text-align: center; }
      .eval-score-wrap { justify-content: center; }
      .footer-grid { grid-template-columns: 1fr; }
    }