:root {
      --primary-color: #4F46E5;
      --primary-hover: #4338CA;
      --secondary-color: #06B6D4;
      --accent-color: #F59E0B;
      --danger-color: #EF4444;
      --bg-main: #F8FAFC;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(79, 70, 229, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 20px 30px -10px rgba(79, 70, 229, 0.2);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

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

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

    /* Section Global Styles */
    section {
      padding: 80px 0;
      position: relative;
    }

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

    .section-tag {
      display: inline-block;
      padding: 4px 16px;
      background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(6,182,212,0.1));
      color: var(--primary-color);
      font-weight: 700;
      font-size: 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      border: 1px solid rgba(79,70,229,0.2);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      margin-top: 10px;
      max-width: 680px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

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

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

    .brand-wrap img {
      height: 40px;
      width: auto;
    }

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

    .nav-links a {
      padding: 8px 14px;
      text-decoration: none;
      color: var(--text-main);
      font-size: 15px;
      font-weight: 600;
      transition: var(--transition);
      border-radius: var(--radius-sm);
    }

    .nav-links a:hover {
      color: var(--primary-color);
      background-color: rgba(79, 70, 229, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
      border: none;
      outline: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-color), #6366F1);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
    }

    .btn-accent {
      background: linear-gradient(135deg, #059669, #10B981);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
    }

    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    }

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

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Hero Section - STRICT NO IMAGES */
    .hero-section {
      padding: 90px 0 70px;
      background: radial-gradient(circle at 10% 20%, rgba(79, 70, 229, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
                  #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }

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

    .hero-badge-group {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-bottom: 24px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: rgba(79, 70, 229, 0.08);
      border: 1px solid rgba(79, 70, 229, 0.2);
      color: var(--primary-color);
      border-radius: 30px;
      font-size: 13px;
      font-weight: 700;
    }

    .hero-title {
      font-size: 38px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.7;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .stat-card {
      background: var(--bg-card);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-50px);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-color);
    }

    .stat-number {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary-color);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 600;
    }

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

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

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

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-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: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.1));
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: bold;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      flex-grow: 1;
      line-height: 1.6;
    }

    /* Tag List for Models */
    .model-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }

    .model-tag {
      background: #EFF6FF;
      color: #1D4ED8;
      border: 1px solid #BFDBFE;
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 600;
    }

    /* Industry Solutions & One-Stop Scenarios */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .scenario-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

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

    .scenario-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scenario-card p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* Service Network */
    .network-wrap {
      background: linear-gradient(135deg, #1E1B4B, #312E81);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 50px;
      text-align: center;
    }

    .network-wrap h3 {
      font-size: 28px;
      margin-bottom: 16px;
      color: #FFFFFF;
    }

    .network-wrap p {
      color: #C7D2FE;
      max-width: 700px;
      margin: 0 auto 30px;
    }

    .network-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .network-item {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .network-item h5 {
      font-size: 16px;
      color: #6EE7B7;
      margin-bottom: 6px;
    }

    /* Comparison Table Component */
    .comparison-section {
      background: #FFFFFF;
    }

    .rating-badge-box {
      background: linear-gradient(135deg, #FEF3C7, #FDE68A);
      border: 2px solid #F59E0B;
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      flex-wrap: wrap;
    }

    .rating-score {
      font-size: 36px;
      font-weight: 900;
      color: #B45309;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 700px;
    }

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

    .comparison-table th {
      background: #F1F5F9;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table td {
      font-size: 14px;
      color: var(--text-muted);
    }

    .comparison-table tr:hover td {
      background: #F8FAFC;
    }

    .highlight-col {
      background: rgba(79, 70, 229, 0.04);
      font-weight: 700;
      color: var(--primary-color) !important;
    }

    /* Token Price Matrix */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

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

    .token-card.popular {
      border: 2px solid var(--primary-color);
    }

    .popular-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary-color);
      color: #FFF;
      font-size: 12px;
      padding: 2px 10px;
      border-radius: 10px;
      font-weight: 700;
    }

    .token-price {
      font-size: 28px;
      font-weight: 900;
      color: var(--text-main);
      margin: 14px 0;
    }

    .token-price span {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: normal;
    }

    /* Process Section */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

    .step-num {
      font-size: 36px;
      font-weight: 900;
      color: rgba(79, 70, 229, 0.2);
      position: absolute;
      top: 15px;
      right: 20px;
    }

    .process-step h4 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .process-step p {
      font-size: 13px;
      color: var(--text-muted);
    }

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

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

    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question:hover {
      background: #F8FAFC;
    }

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      display: none;
      line-height: 1.7;
    }

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

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

    .faq-icon {
      transition: var(--transition);
      font-weight: bold;
    }

    /* Testimonials / User Reviews */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

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

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

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    .user-info h5 {
      font-size: 15px;
      color: var(--text-main);
    }

    .user-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    .review-content {
      font-size: 14px;
      color: var(--text-muted);
      font-style: italic;
    }

    /* Media & Case Showcase Area */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

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

    .case-img-wrap {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #E2E8F0;
    }

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

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

    .case-body {
      padding: 20px;
    }

    .case-body h4 {
      font-size: 18px;
      margin-bottom: 8px;
    }

    .case-body p {
      font-size: 14px;
      color: var(--text-muted);
    }

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

    .contact-info h3 {
      font-size: 24px;
      margin-bottom: 16px;
    }

    .contact-info p {
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .contact-details-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 30px;
    }

    .contact-details-list li {
      font-size: 14px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qr-box {
      display: inline-block;
      text-align: center;
      padding: 12px;
      background: #F1F5F9;
      border-radius: var(--radius-md);
    }

    .qr-box img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 8px;
      border-radius: var(--radius-sm);
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

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

    .form-control:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* Footer Rules & Standard System Alignment */
    .site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 60px 0 30px;
      font-size: 14px;
      border-top: 1px solid #1E293B;
    }

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

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #94A3B8;
      text-decoration: none;
      transition: var(--transition);
    }

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

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 10px;
    }

    .friend-links-box a {
      color: #94A3B8;
      text-decoration: none;
      font-size: 13px;
    }

    .friend-links-box a:hover {
      color: #6EE7B7;
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
      display: flex;
      flex-direction: column;
      gap: 10px;
      align-items: center;
    }

    .ai-page-home-link {
      color: #38BDF8;
      text-decoration: none;
      font-weight: 600;
    }

    /* Articles Section */
    .article-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .article-links-list li a {
      color: var(--primary-color);
      text-decoration: none;
      font-weight: 600;
    }

    .article-links-list li a:hover {
      text-decoration: underline;
    }

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

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary-color);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0,0,0,0.2);
      text-decoration: none;
      font-size: 20px;
      transition: var(--transition);
      cursor: pointer;
    }

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

    /* Responsive Adaptation */
    @media (max-width: 1024px) {
      .hero-stats-grid, .grid-4, .network-grid, .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .scenario-grid, .token-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-stats-grid, .grid-3, .grid-4, .grid-2, .scenario-grid, .network-grid, .token-grid, .process-grid, .reviews-grid, .case-grid {
        grid-template-columns: 1fr;
      }
      .contact-container {
        grid-template-columns: 1fr;
        padding: 20px;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
    }