:root {
      --primary-color: #d81b60;
      --primary-gradient: linear-gradient(135deg, #e91e63 0%, #d81b60 50%, #9c27b0 100%);
      --accent-color: #ff4081;
      --bg-light: #fdf8f9;
      --bg-white: #ffffff;
      --card-bg: #fff5f8;
      --text-main: #2b1f2d;
      --text-muted: #665267;
      --border-color: #f4cfdf;
      --shadow: 0 10px 30px rgba(216, 27, 96, 0.08);
      --shadow-hover: 0 15px 35px rgba(216, 27, 96, 0.18);
      --container-width: 1200px;
    }

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

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

    body {
      overflow-x: hidden;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

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

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

    .section-header {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-subtitle {
      display: inline-block;
      font-size: 0.9rem;
      color: var(--primary-color);
      background: rgba(216, 27, 96, 0.08);
      padding: 4px 16px;
      border-radius: 20px;
      font-weight: 600;
      margin-bottom: 10px;
      text-transform: uppercase;
    }

    .section-title {
      font-size: 2.2rem;
      margin-bottom: 15px;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-desc {
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto;
      font-size: 1rem;
    }

    /* Navbar */
    .header-site {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 15px rgba(0,0,0,0.05);
      border-bottom: 1px solid var(--border-color);
    }

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

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      text-decoration: none;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* Strict requirement */
      list-style: none;
    }

    .nav-links li a {
      text-decoration: none;
      color: var(--text-main);
      font-size: 0.93rem;
      font-weight: 500;
      padding: 8px 12px;
      transition: all 0.25s ease;
      border-radius: 4px;
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-color);
      background: rgba(216, 27, 96, 0.05);
    }

    .ai-page-home-link {
      font-weight: 700;
      color: var(--primary-color) !important;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      border-radius: 50px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.3s ease;
      cursor: pointer;
      border: none;
      font-size: 0.95rem;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff !important;
      box-shadow: 0 4px 15px rgba(233, 30, 99, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(233, 30, 99, 0.4);
    }

    .btn-outline {
      border: 1.5px solid var(--primary-color);
      color: var(--primary-color);
      background: transparent;
    }

    .btn-outline:hover {
      background: var(--primary-color);
      color: #ffffff;
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
    }

    .menu-toggle span {
      width: 25px;
      height: 3px;
      background-color: var(--text-main);
      border-radius: 2px;
    }

    /* Hero Section - NO IMAGES HERE */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 80% 20%, rgba(255, 64, 129, 0.08) 0%, rgba(253, 248, 249, 1) 60%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(216, 27, 96, 0.06);
      border: 1px solid var(--border-color);
      padding: 6px 18px;
      border-radius: 30px;
      color: var(--primary-color);
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.8rem;
      margin-bottom: 20px;
      line-height: 1.25;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 35px auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 15px;
      margin-bottom: 45px;
      flex-wrap: wrap;
    }

    .hero-btn-large {
      padding: 14px 38px;
      font-size: 1.1rem;
      letter-spacing: 0.5px;
    }

    .model-tags-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      max-width: 950px;
      margin: 0 auto 40px auto;
    }

    .tag-item {
      background: var(--bg-white);
      border: 1px solid rgba(216, 27, 96, 0.15);
      padding: 4px 12px;
      border-radius: 15px;
      font-size: 0.82rem;
      color: var(--text-muted);
      box-shadow: 0 2px 5px rgba(0,0,0,0.02);
      transition: all 0.2s;
    }

    .tag-item:hover {
      color: var(--primary-color);
      border-color: var(--primary-color);
      transform: translateY(-1px);
    }

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1000px;
      margin: 0 auto;
      background: var(--bg-white);
      padding: 25px;
      border-radius: 16px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border-color);
    }

    .stat-card-item {
      text-align: center;
    }

    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1;
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Cards Grid System */
    .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

    .card {
      background: var(--bg-white);
      border-radius: 16px;
      padding: 30px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

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

    .card-icon {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: rgba(216, 27, 96, 0.08);
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: bold;
      margin-bottom: 18px;
    }

    .card-title {
      font-size: 1.2rem;
      margin-bottom: 10px;
    }

    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    /* Industry & Services Scenarios */
    .services-grid .card {
      position: relative;
      overflow: hidden;
    }

    .services-grid .card::before {
      content: "";
      position: absolute;
      top: 0; left: 0; width: 4px; height: 100%;
      background: var(--primary-gradient);
    }

    /* Flow Steps */
    .step-list {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 15px;
      position: relative;
    }

    .step-card {
      background: var(--bg-white);
      padding: 20px 15px;
      border-radius: 12px;
      text-align: center;
      border: 1px solid var(--border-color);
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: var(--primary-gradient);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px auto;
      font-weight: 700;
    }

    /* Comparison Section */
    .comparison-wrapper {
      background: var(--bg-white);
      border-radius: 20px;
      padding: 35px;
      box-shadow: var(--shadow);
      border: 1px solid var(--border-color);
    }

    .score-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: var(--card-bg);
      padding: 20px 30px;
      border-radius: 14px;
      margin-bottom: 25px;
      border: 1px solid var(--border-color);
    }

    .stars {
      color: #ffb400;
      font-size: 1.4rem;
    }

    .score-val {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-color);
    }

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .comp-table th, .comp-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .comp-table th {
      background: #fcf0f4;
      color: var(--text-main);
      font-weight: 700;
    }

    .highlight-col {
      background: rgba(216, 27, 96, 0.03);
      font-weight: 700;
      color: var(--primary-color);
    }

    /* Case Studies & Gallery */
    .media-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .media-item {
      background: var(--bg-white);
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow);
    }

    .media-item img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .media-caption {
      padding: 15px;
    }

    .media-caption h4 {
      font-size: 1rem;
      margin-bottom: 5px;
    }

    .media-caption p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

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

    .faq-item {
      background: var(--bg-white);
      border-radius: 10px;
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 22px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: var(--bg-white);
      transition: background 0.2s;
    }

    .faq-question:hover {
      background: var(--card-bg);
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary-color);
      transition: transform 0.3s;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fdfafc;
      color: var(--text-muted);
      font-size: 0.93rem;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 22px 18px 22px;
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    /* Reviews Section */
    .reviews-grid .card {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 15px;
      padding-top: 15px;
      border-top: 1px solid var(--border-color);
    }

    .avatar-circle {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    /* Form & Contact */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: var(--bg-white);
      border-radius: 20px;
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      font-size: 0.9rem;
    }

    .form-control {
      width: 100%;
      padding: 12px 15px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      background: var(--bg-light);
      outline: none;
      transition: border-color 0.25s;
    }

    .form-control:focus {
      border-color: var(--primary-color);
      background: #fff;
    }

    textarea.form-control {
      min-height: 110px;
      resize: vertical;
    }

    .qr-card {
      text-align: center;
      padding: 20px;
      background: var(--card-bg);
      border-radius: 12px;
      border: 1px dashed var(--primary-color);
      margin-top: 20px;
    }

    .qr-card img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      margin-bottom: 10px;
      border-radius: 8px;
    }

    /* Articles / News */
    .article-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-links-list li a {
      color: var(--text-main);
      text-decoration: none;
      padding: 12px 18px;
      background: var(--bg-white);
      border-radius: 8px;
      display: block;
      border: 1px solid var(--border-color);
      transition: all 0.2s;
    }

    .article-links-list li a:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: translateX(5px);
    }

    /* Agency & Franchise */
    .agency-banner {
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: 20px;
      padding: 45px;
      text-align: center;
    }

    .agency-banner h2 {
      color: #ffffff;
      font-size: 2.2rem;
      margin-bottom: 15px;
    }

    .agency-banner p {
      font-size: 1.1rem;
      opacity: 0.9;
      max-width: 750px;
      margin: 0 auto 30px auto;
    }

    /* Footer Safety Formatting */
    .site-footer {
      background: #1e1320;
      color: #e2d8e4;
      padding: 60px 0 30px 0;
      border-top: 1px solid #36233a;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand p {
      color: #b09eb3;
      font-size: 0.9rem;
      margin-top: 15px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 20px;
    }

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

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #b09eb3;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s;
    }

    .footer-links a:hover {
      color: var(--accent-color);
    }

    .friend-links-box {
      border-top: 1px solid #36233a;
      padding-top: 25px;
      margin-top: 25px;
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      align-items: center;
      font-size: 0.88rem;
    }

    .friend-links-box span {
      color: #ffffff;
      font-weight: 600;
    }

    .friend-links-box a {
      color: #b09eb3;
      text-decoration: none;
      transition: color 0.2s;
    }

    .friend-links-box a:hover {
      color: var(--accent-color);
    }

    .copyright-bar {
      border-top: 1px solid #2d1c31;
      padding-top: 25px;
      text-align: center;
      font-size: 0.85rem;
      color: #8c7790;
    }

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

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(0,0,0,0.2);
      text-decoration: none;
      font-size: 1.2rem;
      cursor: pointer;
      transition: transform 0.2s;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* Responsive */
    @media (max-width: 992px) {
      .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .step-list { grid-template-columns: repeat(3, 1fr); }
      .hero-stats-row { grid-template-columns: repeat(2, 1fr); }
      .contact-container { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .media-gallery { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .menu-toggle { display: flex; }
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.show { display: flex; }
      .nav-links li { width: 100%; }
      .nav-links li a { width: 100%; padding: 10px 0; }
      .hero-title { font-size: 2rem; }
      .grid-2, .grid-3, .grid-4, .media-gallery { grid-template-columns: 1fr; }
      .step-list { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }