/* Reset & Base Styles */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    
    :root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --primary: #6366f1;
      --primary-hover: #4f46e5;
      --holo-gradient: linear-gradient(135deg, #a855f7 0%, #3b82f6 35%, #06b6d4 70%, #ec4899 100%);
      --holo-subtle: linear-gradient(135deg, rgba(168,85,247,0.06), rgba(59,130,246,0.06), rgba(6,182,212,0.06));
      --holo-border: linear-gradient(135deg, rgba(168,85,247,0.3), rgba(59,130,246,0.3), rgba(236,72,153,0.3));
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
      --shadow-holo: 0 12px 30px -8px rgba(168, 85, 247, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 24px;
    }

    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-main);
      line-height: 1.6;
    }

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

    /* Container System */
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Typography */
    h1, h2, h3, h4 {
      color: var(--text-main);
      font-weight: 700;
      line-height: 1.25;
    }
    
    a {
      color: var(--primary);
      text-decoration: none;
      transition: all 0.2s ease;
    }
    
    a:hover {
      color: var(--primary-hover);
    }

    /* Holographic Accent Badges & Buttons */
    .holo-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(168, 85, 247, 0.3);
      font-size: 0.875rem;
      font-weight: 600;
      color: #6b21a8;
      box-shadow: 0 2px 10px rgba(168, 85, 247, 0.1);
      margin-bottom: 16px;
    }

    .btn-holo {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      font-size: 1rem;
      font-weight: 600;
      color: #ffffff;
      background: var(--holo-gradient);
      background-size: 200% 200%;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: var(--shadow-holo);
      transition: all 0.3s ease;
      text-decoration: none;
    }

    .btn-holo:hover {
      background-position: 100% 100%;
      transform: translateY(-2px);
      box-shadow: 0 16px 35px -8px rgba(168, 85, 247, 0.3);
      color: #ffffff;
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      background: #ffffff;
      border: 1px solid rgba(15, 23, 42, 0.15);
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.3s ease;
      text-decoration: none;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

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

    /* Required Rules for .nav-links: gap MUST BE 0 */
    .nav-links {
      display: flex;
      gap: 0;
      align-items: center;
      list-style: none;
    }

    .nav-links li a {
      display: block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: var(--holo-subtle);
    }

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

    /* Hero Section - STRICTLY NO IMAGES */
    .hero-section {
      padding: 90px 0 60px;
      background: radial-gradient(circle at 50% 0%, rgba(168, 85, 247, 0.12) 0%, rgba(59, 130, 246, 0.05) 50%, transparent 100%);
      text-align: center;
      position: relative;
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #0f172a 30%, #4338ca 70%, #6b21a8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    /* CSS Holographic Interactive Demo Block (No Img) */
    .hero-visual-card {
      background: #ffffff;
      border: 1px solid rgba(168, 85, 247, 0.25);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-holo);
      position: relative;
      overflow: hidden;
    }

    .hero-visual-card::before {
      content: "";
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: conic-gradient(from 0deg, transparent, rgba(168, 85, 247, 0.1), rgba(6, 182, 212, 0.1), transparent 60%);
      animation: rotateHolo 12s linear infinite;
      pointer-events: none;
    }

    @keyframes rotateHolo {
      100% { transform: rotate(360deg); }
    }

    .hero-grid-tags {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      gap: 14px;
      position: relative;
      z-index: 1;
    }

    .hero-tag-item {
      padding: 14px 10px;
      background: var(--bg-main);
      border-radius: var(--radius-sm);
      border: 1px solid rgba(15, 23, 42, 0.06);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      text-align: center;
      transition: transform 0.2s ease;
    }

    .hero-tag-item:hover {
      transform: translateY(-3px);
      border-color: var(--primary);
    }

    /* Metric Cards Section */
    .metrics-section {
      padding: 40px 0;
      margin-top: -30px;
      position: relative;
      z-index: 2;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid rgba(15, 23, 42, 0.08);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .metric-value {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 6px;
      font-family: inherit;
    }

    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* Section Header */
    .section-padding {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      margin-bottom: 14px;
      color: var(--text-main);
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* Service Cards (25 scenarios) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid rgba(15, 23, 42, 0.08);
      border-radius: var(--radius-md);
      padding: 26px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-holo);
      border-color: rgba(168, 85, 247, 0.4);
    }

    .service-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--holo-subtle);
      border: 1px solid rgba(168, 85, 247, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      color: var(--primary);
      margin-bottom: 18px;
    }

    .service-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Supported Models Badge Cloud */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid rgba(15, 23, 42, 0.1);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
    }

    /* Comparison Table Section */
    .rating-badge-container {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      margin-bottom: 30px;
    }

    .rating-score {
      font-size: 3.5rem;
      font-weight: 900;
      color: #6366f1;
      line-height: 1;
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.5rem;
    }

    .table-wrapper {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid rgba(15, 23, 42, 0.1);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .compare-table th, .compare-table td {
      padding: 16px 22px;
      border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    }

    .compare-table th {
      background: #f1f5f9;
      font-size: 0.95rem;
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table td {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

    .compare-table .highlight-col {
      background: rgba(99, 102, 241, 0.04);
      font-weight: 600;
      color: var(--text-main);
    }

    /* Steps Section */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
      gap: 24px;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid rgba(15, 23, 42, 0.08);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
    }

    .step-num {
      font-size: 1.8rem;
      font-weight: 900;
      color: rgba(99, 102, 241, 0.3);
      margin-bottom: 12px;
    }

    /* Cases & Media Section */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(15, 23, 42, 0.08);
      box-shadow: var(--shadow-sm);
    }

    .case-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #e2e8f0;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

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

    .case-info {
      padding: 20px;
    }

    /* User Reviews */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid rgba(15, 23, 42, 0.08);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

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

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

    .user-info h4 {
      font-size: 0.98rem;
    }

    .user-info p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid rgba(15, 23, 42, 0.08);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 22px;
      font-weight: 600;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-answer {
      padding: 0 22px 18px;
      color: var(--text-muted);
      font-size: 0.95rem;
      display: none;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .faq-icon {
      transition: transform 0.3s ease;
    }

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

    /* Contact Section & Form */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid rgba(15, 23, 42, 0.08);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-box h3 {
      font-size: 1.5rem;
      margin-bottom: 16px;
    }

    .contact-item {
      margin-bottom: 14px;
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .qr-box {
      margin-top: 20px;
      text-align: center;
      max-width: 160px;
    }

    .qr-box img {
      width: 100%;
      border-radius: 8px;
      border: 1px solid rgba(15, 23, 42, 0.1);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid rgba(15, 23, 42, 0.15);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.2s;
    }

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

    /* Footer - Light Theme Safe Colors */
    .site-footer {
      background: #f1f5f9;
      color: var(--text-main);
      border-top: 1px solid rgba(15, 23, 42, 0.08);
      padding: 60px 0 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1rem;
      margin-bottom: 18px;
      color: var(--text-main);
    }

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

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

    .footer-links a {
      color: var(--text-muted);
      font-size: 0.9rem;
    }

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

    .friend-links-box {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid rgba(15, 23, 42, 0.08);
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.88rem;
    }

    .friend-links-box a {
      color: var(--text-muted);
    }

    .footer-bottom {
      text-align: center;
      padding-top: 20px;
      border-top: 1px solid rgba(15, 23, 42, 0.08);
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Floating Customer Service */
    .floating-cs {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      background: #ffffff;
      border: 1px solid rgba(168, 85, 247, 0.3);
      padding: 12px 18px;
      border-radius: 30px;
      box-shadow: var(--shadow-holo);
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
    }

    /* Responsive Queries */
    @media (max-width: 992px) {
      .hero-title { font-size: 2.2rem; }
      .contact-wrapper { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid rgba(15, 23, 42, 0.1);
        padding: 20px;
      }
      .nav-links.active { display: flex; }
      .mobile-menu-toggle { display: block; }
      .hero-title { font-size: 1.8rem; }
      .footer-grid { grid-template-columns: 1fr; }
    }