/* Reset & CSS Custom Properties for Cyber Theme */
    :root {
      --bg-main: #060212;
      --bg-card: #120928;
      --bg-glow: #1a0f3d;
      --primary: #ff007f;
      --secondary: #8a2be2;
      --accent: #00ffff;
      --text-white: #ffffff;
      --text-light: #e0dcf0;
      --text-muted: #8c82ab;
      --border-cyber: rgba(255, 0, 127, 0.3);
      --border-cyber-cyan: rgba(0, 255, 255, 0.3);
      --neon-shadow: 0 0 15px rgba(255, 0, 127, 0.6);
      --neon-shadow-cyan: 0 0 15px rgba(0, 255, 255, 0.6);
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      --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-size: 16px;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-light);
      font-family: var(--font-family);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(138, 43, 226, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255, 0, 127, 0.1) 0%, transparent 40%);
      background-attachment: fixed;
    }

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

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

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

    /* Header & Navigation */
    header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(6, 2, 18, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-cyber);
    }

    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      max-width: 1200px;
      margin: 0 auto;
    }

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

    .ai-page-logo {
      height: 40px;
      width: auto;
      filter: drop-shadow(0 0 5px var(--primary));
    }

    .logo-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-white);
      letter-spacing: 1px;
      background: linear-gradient(45deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-menu {
      display: flex;
      gap: 25px;
      list-style: none;
    }

    .nav-item a {
      color: var(--text-light);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      padding: 5px 0;
    }

    .nav-item a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }

    .nav-item a:hover::after {
      width: 100%;
    }

    .nav-btn {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: var(--text-white) !important;
      padding: 8px 18px;
      border-radius: 5px;
      font-weight: 600;
      box-shadow: var(--neon-shadow);
      border: none;
      cursor: pointer;
      display: inline-block;
    }

    .nav-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 20px rgba(255, 0, 127, 0.8);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 6px;
      cursor: pointer;
      background: none;
      border: none;
    }

    .menu-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background: var(--text-white);
      border-radius: 3px;
      transition: var(--transition);
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      padding: 120px 0 100px;
      text-align: center;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-cyber);
    }

    .hero-glow-1 {
      position: absolute;
      top: -10%;
      left: 50%;
      transform: translateX(-50%);
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(255,0,127,0.15) 0%, transparent 70%);
      pointer-events: none;
      z-index: 1;
    }

    .hero-content {
      position: relative;
      z-index: 5;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-tagline {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(255, 0, 127, 0.1);
      border: 1px solid var(--primary);
      border-radius: 50px;
      color: var(--primary);
      font-size: 0.9rem;
      font-weight: bold;
      letter-spacing: 2px;
      margin-bottom: 25px;
      text-shadow: 0 0 5px rgba(255, 0, 127, 0.5);
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-white);
      margin-bottom: 25px;
      letter-spacing: 1px;
    }

    .hero-title span {
      background: linear-gradient(90deg, var(--accent), var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      text-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 750px;
      margin: 0 auto 40px;
    }

    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .btn-cyber-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: var(--text-white);
      padding: 15px 35px;
      font-size: 1.1rem;
      font-weight: bold;
      border-radius: 8px;
      box-shadow: var(--neon-shadow);
      border: 1px solid var(--primary);
      transition: var(--transition);
      display: inline-block;
    }

    .btn-cyber-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 0 25px rgba(255, 0, 127, 0.9);
      color: var(--text-white);
    }

    .btn-cyber-secondary {
      background: rgba(6, 2, 18, 0.6);
      color: var(--accent);
      padding: 15px 35px;
      font-size: 1.1rem;
      font-weight: bold;
      border-radius: 8px;
      border: 1px solid var(--accent);
      box-shadow: 0 0 10px rgba(0, 255, 255, 0.1);
      transition: var(--transition);
      display: inline-block;
    }

    .btn-cyber-secondary:hover {
      transform: translateY(-3px);
      background: rgba(0, 255, 255, 0.1);
      box-shadow: var(--neon-shadow-cyan);
    }

    /* Section Global Styles */
    section {
      padding: 90px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      margin-bottom: 60px;
    }

    .section-tag {
      color: var(--accent);
      font-size: 0.85rem;
      font-weight: bold;
      text-transform: uppercase;
      letter-spacing: 3px;
      margin-bottom: 10px;
      display: block;
    }

    .section-title {
      font-size: 2.2rem;
      color: var(--text-white);
      font-weight: 800;
    }

    .section-title span {
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-desc {
      color: var(--text-muted);
      max-width: 600px;
      margin: 15px auto 0;
      font-size: 1rem;
    }

    /* Indicators Grid (Data metrics) */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -40px;
      position: relative;
      z-index: 10;
    }

    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 12px;
      padding: 30px 20px;
      text-align: center;
      transition: var(--transition);
    }

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

    .metric-num {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--text-white);
      line-height: 1;
      margin-bottom: 10px;
      background: linear-gradient(90deg, var(--accent), var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .metric-label {
      color: var(--text-light);
      font-size: 0.95rem;
      font-weight: 600;
    }

    .metric-desc {
      color: var(--text-muted);
      font-size: 0.8rem;
      margin-top: 5px;
    }

    /* About Us */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 50px;
      align-items: center;
    }

    .about-visual {
      border: 2px solid var(--border-cyber-cyan);
      border-radius: 16px;
      padding: 15px;
      background: rgba(18, 9, 40, 0.4);
      box-shadow: var(--neon-shadow-cyan);
    }

    .about-visual img {
      width: 100%;
      border-radius: 10px;
      display: block;
    }

    .about-content h3 {
      font-size: 1.8rem;
      color: var(--text-white);
      margin-bottom: 20px;
    }

    .about-content p {
      color: var(--text-light);
      margin-bottom: 20px;
      font-size: 1.05rem;
    }

    .about-list {
      list-style: none;
      margin-bottom: 30px;
    }

    .about-list li {
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.95rem;
    }

    .about-list li::before {
      content: '✦';
      color: var(--accent);
      font-size: 1.2rem;
    }

    /* Service Ecosystem Grid */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 12px;
      padding: 35px 25px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card:hover {
      transform: translateY(-8px);
      border-color: var(--primary);
      box-shadow: var(--neon-shadow);
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: linear-gradient(to bottom, var(--primary), var(--secondary));
    }

    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 20px;
      color: var(--accent);
    }

    .service-card h3 {
      font-size: 1.4rem;
      color: var(--text-white);
      margin-bottom: 15px;
    }

    .service-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin-bottom: 15px;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .service-tag-item {
      background: rgba(138, 43, 226, 0.2);
      color: var(--accent);
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid rgba(0, 255, 255, 0.2);
    }

    /* Brand Cloud (Supported AI Platforms) */
    .brand-cloud-section {
      background: rgba(18, 9, 40, 0.3);
      border-top: 1px solid var(--border-cyber);
      border-bottom: 1px solid var(--border-cyber);
      padding: 60px 0;
    }

    .brand-cloud-title {
      text-align: center;
      font-size: 1.1rem;
      letter-spacing: 2px;
      color: var(--text-muted);
      margin-bottom: 30px;
      text-transform: uppercase;
    }

    .brand-cloud-wrapper {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .brand-tag {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      padding: 8px 16px;
      border-radius: 6px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-light);
      transition: var(--transition);
    }

    .brand-tag:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: scale(1.05);
      box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
    }

    /* Workflow (Timeline) */
    .workflow-timeline {
      max-width: 900px;
      margin: 0 auto;
      position: relative;
      padding-left: 30px;
    }

    .workflow-timeline::before {
      content: '';
      position: absolute;
      left: 7px;
      top: 0;
      bottom: 0;
      width: 2px;
      background: linear-gradient(to bottom, var(--primary), var(--secondary), var(--accent));
    }

    .workflow-step {
      position: relative;
      margin-bottom: 50px;
    }

    .workflow-step:last-child {
      margin-bottom: 0;
    }

    .workflow-step::before {
      content: '';
      position: absolute;
      left: -29px;
      top: 8px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--bg-main);
      border: 3px solid var(--accent);
      box-shadow: 0 0 8px var(--accent);
    }

    .workflow-step-num {
      font-size: 0.85rem;
      color: var(--primary);
      font-weight: bold;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 5px;
      display: block;
    }

    .workflow-step-title {
      font-size: 1.4rem;
      color: var(--text-white);
      margin-bottom: 10px;
    }

    .workflow-step-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* Solutions (Tab/Card Layout) */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .solution-card {
      background: linear-gradient(145deg, var(--bg-card) 0%, rgba(26,15,61,0.2) 100%);
      border: 1px solid var(--border-cyber-cyan);
      border-radius: 12px;
      padding: 30px;
      transition: var(--transition);
    }

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

    .solution-header {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
    }

    .solution-badge {
      background: rgba(0, 255, 255, 0.1);
      color: var(--accent);
      padding: 5px 12px;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: bold;
      border: 1px solid var(--accent);
    }

    .solution-card h3 {
      font-size: 1.3rem;
      color: var(--text-white);
    }

    .solution-card p {
      color: var(--text-light);
      font-size: 0.95rem;
      margin-bottom: 20px;
    }

    .solution-features {
      list-style: none;
      border-top: 1px solid var(--border-cyber);
      padding-top: 15px;
    }

    .solution-features li {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .solution-features li::before {
      content: '✓';
      color: var(--accent);
    }

    /* Service Network */
    .network-container {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 16px;
      padding: 40px;
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      align-items: center;
    }

    .network-info h3 {
      font-size: 1.6rem;
      color: var(--text-white);
      margin-bottom: 15px;
    }

    .network-info p {
      color: var(--text-light);
      margin-bottom: 25px;
    }

    .network-regions {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 15px;
    }

    .region-item {
      background: rgba(6, 2, 18, 0.5);
      border: 1px solid rgba(255, 0, 127, 0.2);
      padding: 15px;
      border-radius: 8px;
      display: flex;
      flex-direction: column;
    }

    .region-name {
      color: var(--accent);
      font-weight: bold;
      font-size: 1rem;
      margin-bottom: 5px;
    }

    .region-desc {
      color: var(--text-muted);
      font-size: 0.8rem;
    }

    .network-map-placeholder {
      height: 300px;
      background: radial-gradient(circle, rgba(138,43,226,0.3) 0%, transparent 70%);
      border: 1px dashed var(--border-cyber-cyan);
      border-radius: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      position: relative;
    }

    .network-pulse {
      width: 12px;
      height: 12px;
      background: var(--accent);
      border-radius: 50%;
      position: absolute;
      box-shadow: 0 0 15px var(--accent);
      animation: pulse 2s infinite;
    }

    .pulse-1 { top: 30%; left: 40%; }
    .pulse-2 { top: 60%; left: 70%; }
    .pulse-3 { top: 50%; left: 30%; }

    @keyframes pulse {
      0% { transform: scale(0.8); opacity: 0.5; }
      50% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 25px var(--accent); }
      100% { transform: scale(0.8); opacity: 0.5; }
    }

    /* Technical Standards */
    .standards-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .standard-card {
      background: rgba(18, 9, 40, 0.6);
      border: 1px solid var(--border-cyber);
      padding: 25px 20px;
      border-radius: 10px;
      text-align: center;
    }

    .standard-val {
      font-size: 1.8rem;
      font-weight: bold;
      color: var(--accent);
      margin-bottom: 10px;
    }

    .standard-title {
      font-size: 1rem;
      color: var(--text-white);
      margin-bottom: 8px;
    }

    .standard-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Client Showcase */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 16px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .case-card:hover {
      border-color: var(--primary);
      box-shadow: var(--neon-shadow);
      transform: translateY(-3px);
    }

    .case-image {
      height: 250px;
      overflow: hidden;
      position: relative;
    }

    .case-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .case-tag {
      position: absolute;
      top: 15px;
      left: 15px;
      background: rgba(255, 0, 127, 0.9);
      color: var(--text-white);
      padding: 4px 12px;
      font-size: 0.8rem;
      border-radius: 4px;
      font-weight: bold;
    }

    .case-content {
      padding: 25px;
    }

    .case-title {
      font-size: 1.4rem;
      color: var(--text-white);
      margin-bottom: 10px;
    }

    .case-desc {
      color: var(--text-light);
      font-size: 0.9rem;
      margin-bottom: 15px;
    }

    .case-metrics {
      display: flex;
      gap: 20px;
      border-top: 1px solid rgba(255, 0, 127, 0.1);
      padding-top: 15px;
    }

    .case-metric-item {
      display: flex;
      flex-direction: column;
    }

    .case-metric-val {
      font-weight: bold;
      color: var(--accent);
      font-size: 1.1rem;
    }

    .case-metric-lbl {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* Comparison Table (Evaluation) */
    .comp-container {
      background: var(--bg-card);
      border: 2px solid var(--border-cyber);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--neon-shadow);
    }

    .comp-badge-row {
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      padding: 20px;
      text-align: center;
      color: var(--text-white);
    }

    .comp-score {
      font-size: 2.2rem;
      font-weight: 900;
      letter-spacing: 1px;
      margin-bottom: 5px;
    }

    .comp-rating {
      font-size: 1.1rem;
      color: var(--accent);
      font-weight: bold;
    }

    .table-responsive {
      overflow-x: auto;
    }

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

    .comp-table th, .comp-table td {
      padding: 18px 20px;
      border-bottom: 1px solid var(--border-cyber);
    }

    .comp-table th {
      background: rgba(6, 2, 18, 0.5);
      color: var(--text-white);
      font-weight: bold;
    }

    .comp-table td {
      color: var(--text-light);
      font-size: 0.95rem;
    }

    .comp-table tr:hover td {
      background: rgba(255, 0, 127, 0.05);
    }

    .highlight-column {
      background: rgba(138, 43, 226, 0.15);
      font-weight: bold;
      color: var(--text-white) !important;
      border-left: 1px solid var(--border-cyber);
      border-right: 1px solid var(--border-cyber);
    }

    .star-rating {
      color: #ffb800;
      font-size: 1.2rem;
    }

    /* Token Price Reference Table */
    .token-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 40px;
    }

    .token-table-wrap {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber-cyan);
      border-radius: 12px;
      overflow: hidden;
    }

    .token-table {
      width: 100%;
      border-collapse: collapse;
    }

    .token-table th, .token-table td {
      padding: 15px;
      border-bottom: 1px solid var(--border-cyber);
      text-align: left;
    }

    .token-table th {
      background: rgba(6, 2, 18, 0.6);
      color: var(--accent);
    }

    .token-price-tag {
      color: var(--primary);
      font-weight: bold;
    }

    .token-desc-card {
      background: linear-gradient(135deg, var(--bg-glow) 0%, var(--bg-card) 100%);
      border: 1px solid var(--border-cyber);
      border-radius: 12px;
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .token-desc-card h3 {
      font-size: 1.5rem;
      color: var(--text-white);
      margin-bottom: 15px;
    }

    .token-desc-card p {
      color: var(--text-light);
      font-size: 0.95rem;
      margin-bottom: 20px;
      line-height: 1.7;
    }

    /* Training Programs */
    .training-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
    }

    .training-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 10px;
      padding: 25px 20px;
      text-align: center;
      transition: var(--transition);
    }

    .training-card:hover {
      transform: scale(1.03);
      border-color: var(--accent);
      box-shadow: var(--neon-shadow-cyan);
    }

    .training-badge {
      display: inline-block;
      padding: 4px 10px;
      background: rgba(0, 255, 255, 0.1);
      color: var(--accent);
      font-size: 0.75rem;
      border: 1px solid var(--accent);
      border-radius: 4px;
      margin-bottom: 15px;
    }

    .training-card h3 {
      font-size: 1.1rem;
      color: var(--text-white);
      margin-bottom: 12px;
    }

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

    /* Customer Reviews */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 12px;
      padding: 25px;
      position: relative;
    }

    .review-card::after {
      content: '"';
      position: absolute;
      top: 15px;
      right: 25px;
      font-size: 3rem;
      color: rgba(255, 0, 127, 0.15);
      font-family: serif;
      line-height: 1;
    }

    .review-text {
      font-size: 0.95rem;
      color: var(--text-light);
      margin-bottom: 20px;
      line-height: 1.6;
    }

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

    .review-avatar-placeholder {
      width: 45px;
      height: 45px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      font-weight: bold;
      color: var(--text-white);
    }

    .review-info h4 {
      font-size: 0.95rem;
      color: var(--text-white);
    }

    .review-info span {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* FAQ (Accordions) */
    .faq-layout {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-header-btn {
      width: 100%;
      background: none;
      border: none;
      padding: 20px;
      text-align: left;
      color: var(--text-white);
      font-size: 1.05rem;
      font-weight: bold;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-header-btn:hover {
      color: var(--accent);
    }

    .faq-icon-indicator {
      font-size: 1.2rem;
      color: var(--primary);
      transition: var(--transition);
    }

    .faq-content-pane {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background: rgba(6, 2, 18, 0.4);
    }

    .faq-content-inner {
      padding: 20px;
      color: var(--text-light);
      font-size: 0.95rem;
      border-top: 1px solid rgba(255, 0, 127, 0.1);
    }

    .faq-item.active .faq-content-pane {
      max-height: 1000px; /* high value for auto expand */
      transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
    }

    .faq-item.active .faq-icon-indicator {
      transform: rotate(45deg);
      color: var(--accent);
    }

    /* Term Glossary (术语百科) & Troubleshooting (排查) */
    .glossary-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .glossary-box, .trouble-box {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber-cyan);
      border-radius: 12px;
      padding: 25px;
    }

    .glossary-box h3, .trouble-box h3 {
      font-size: 1.3rem;
      color: var(--text-white);
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border-cyber);
      padding-bottom: 10px;
    }

    .glossary-list, .trouble-list {
      list-style: none;
    }

    .glossary-list li, .trouble-list li {
      margin-bottom: 15px;
    }

    .glossary-term {
      color: var(--accent);
      font-weight: bold;
      font-size: 0.95rem;
    }

    .glossary-def {
      color: var(--text-muted);
      font-size: 0.85rem;
      margin-top: 4px;
    }

    .trouble-list li {
      display: flex;
      gap: 10px;
      font-size: 0.9rem;
    }

    .trouble-num {
      color: var(--primary);
      font-weight: bold;
    }

    /* Articles / News section */
    .articles-section {
      background: rgba(18, 9, 40, 0.2);
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .article-card {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 12px;
      padding: 25px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .article-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }

    .article-card h3 {
      font-size: 1.1rem;
      color: var(--text-white);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .article-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .article-footer {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8rem;
    }

    .article-link {
      color: var(--accent);
      font-weight: bold;
    }

    /* Contact Us & Form */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 50px;
      align-items: start;
    }

    .contact-details {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      border-radius: 16px;
      padding: 40px;
    }

    .contact-details h3 {
      font-size: 1.6rem;
      color: var(--text-white);
      margin-bottom: 25px;
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 15px;
      margin-bottom: 25px;
    }

    .contact-icon {
      font-size: 1.3rem;
      color: var(--primary);
      margin-top: 3px;
    }

    .contact-info-text h4 {
      font-size: 1rem;
      color: var(--text-white);
      margin-bottom: 5px;
    }

    .contact-info-text p, .contact-info-text a {
      color: var(--text-light);
      font-size: 0.95rem;
    }

    .qr-container {
      margin-top: 30px;
      padding-top: 25px;
      border-top: 1px solid rgba(255, 0, 127, 0.2);
      display: flex;
      gap: 20px;
      align-items: center;
    }

    .qr-box {
      width: 120px;
      height: 120px;
      background: var(--text-white);
      border-radius: 8px;
      padding: 8px;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .qr-box img {
      width: 100%;
      height: auto;
    }

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

    .qr-text strong {
      color: var(--text-white);
      display: block;
      margin-bottom: 4px;
    }

    /* Form Design */
    .form-wrap {
      background: var(--bg-card);
      border: 1px solid var(--border-cyber-cyan);
      border-radius: 16px;
      padding: 40px;
      box-shadow: var(--neon-shadow-cyan);
    }

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

    .form-group label {
      display: block;
      color: var(--text-white);
      margin-bottom: 8px;
      font-size: 0.9rem;
      font-weight: 600;
    }

    .form-control {
      width: 100%;
      background: rgba(6, 2, 18, 0.7);
      border: 1px solid var(--border-cyber);
      border-radius: 6px;
      padding: 12px 15px;
      color: var(--text-light);
      font-size: 0.95rem;
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 120px;
    }

    .form-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .submit-btn {
      width: 100%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: var(--text-white);
      padding: 15px;
      border-radius: 6px;
      border: none;
      font-size: 1.05rem;
      font-weight: bold;
      cursor: pointer;
      box-shadow: var(--neon-shadow);
      transition: var(--transition);
    }

    .submit-btn:hover {
      box-shadow: 0 0 25px rgba(255, 0, 127, 0.9);
      transform: translateY(-2px);
    }

    /* Footer & Friend Links */
    footer {
      background: #04010a;
      border-top: 1px solid var(--border-cyber);
      padding: 60px 0 20px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 45px;
    }

    .footer-about h4, .footer-links h4 {
      color: var(--text-white);
      margin-bottom: 20px;
      font-size: 1.05rem;
    }

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

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

    .footer-links ul li a {
      color: var(--text-muted);
    }

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

    .friend-links-area {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 25px;
      margin-bottom: 25px;
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      align-items: center;
    }

    .friend-links-area span {
      font-weight: bold;
      color: var(--text-light);
    }

    .friend-links-area a {
      color: var(--text-muted);
      font-size: 0.85rem;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 20px;
      text-align: center;
      font-size: 0.8rem;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      bottom: 30px;
      right: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      display: flex;
      justify-content: center;
      align-items: center;
      color: var(--text-white);
      cursor: pointer;
      box-shadow: var(--neon-shadow);
      transition: var(--transition);
      position: relative;
    }

    .float-btn:hover {
      background: var(--primary);
      transform: translateY(-3px);
    }

    .float-btn .tooltip {
      position: absolute;
      right: 65px;
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      padding: 6px 12px;
      border-radius: 4px;
      font-size: 0.8rem;
      white-space: nowrap;
      opacity: 0;
      pointer-events: none;
      transition: var(--transition);
    }

    .float-btn:hover .tooltip {
      opacity: 1;
    }

    .float-qr-wrap {
      display: none;
      position: absolute;
      bottom: 60px;
      right: 0;
      background: var(--bg-card);
      border: 1px solid var(--border-cyber);
      padding: 15px;
      border-radius: 8px;
      box-shadow: var(--neon-shadow);
      text-align: center;
    }

    .float-btn:hover .float-qr-wrap {
      display: block;
    }

    .float-qr-wrap img {
      width: 120px;
      height: 120px;
      margin-bottom: 8px;
    }

    .float-qr-wrap span {
      font-size: 0.75rem;
      color: var(--text-light);
      display: block;
    }

    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .hero-title { font-size: 2.2rem; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); margin-top: 20px; }
      .about-grid, .network-container, .token-grid, .contact-container { grid-template-columns: 1fr; }
      .solutions-grid, .reviews-grid, .articles-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-card);
        border-bottom: 1px solid var(--border-cyber);
        padding: 20px;
        gap: 15px;
      }
      .nav-menu.active {
        display: flex;
      }
      .menu-toggle {
        display: flex;
      }
      .hero-section { padding: 80px 0 60px; }
      .hero-title { font-size: 1.8rem; }
      .solutions-grid, .reviews-grid, .articles-grid, .case-grid, .glossary-grid { grid-template-columns: 1fr; }
      .standards-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-top { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
    }