:root {
      --primary: #0a8f82;
      --primary-dark: #076d63;
      --primary-light: #e6f7f5;
      --accent: #11a395;
      --dark: #122026;
      --text: #2c3e47;
      --text-muted: #5e737e;
      --bg: #f5f9fa;
      --card-bg: #ffffff;
      --border: #d4e3e6;
      --shadow: 0 10px 30px rgba(10, 143, 130, 0.08);
      --radius: 12px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg);
      color: var(--text);
    }
    body {
      line-height: 1.6;
      background: radial-gradient(circle at 10% 0%, #daf0ee 0%, #f5f9fa 50%, #f0f7f8 100%);
      min-height: 100vh;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    
    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      max-height: 48px;
    }
    .brand-logo-wrap img.ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }
    .brand-name {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: 0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text);
      padding: 8px 12px;
      border-radius: 6px;
      transition: all 0.2s;
    }
    .nav-links a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.25s ease;
      font-size: 14px;
      padding: 10px 20px;
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(10, 143, 130, 0.25);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(10, 143, 130, 0.35);
    }
    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background-color: #ffffff;
    }
    .btn-outline:hover {
      background-color: var(--primary-light);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }
    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--dark);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* Hero Section (Strictly No Images) */
    .hero-section {
      padding: 70px 0 50px;
      background: linear-gradient(180deg, rgba(230, 247, 245, 0.6) 0%, rgba(245, 249, 250, 0.9) 100%);
      border-bottom: 1px solid var(--border);
      position: relative;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      background-color: #ffffff;
      border: 1px solid var(--border);
      color: var(--primary-dark);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 20px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    }
    .hero-title {
      font-size: 38px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-desc {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .hero-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 30px;
    }
    .hero-features-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      list-style: none;
      font-size: 13px;
      color: var(--text);
    }
    .hero-features-list li {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-features-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: bold;
    }
    .hero-card-panel {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow);
    }
    .panel-header {
      border-bottom: 1px solid var(--border);
      padding-bottom: 16px;
      margin-bottom: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .panel-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark);
    }
    .panel-status {
      font-size: 12px;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .engine-metrics {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-bottom: 20px;
    }
    .metric-box {
      background-color: var(--bg);
      border: 1px solid var(--border);
      padding: 16px;
      border-radius: 8px;
    }
    .metric-value {
      font-size: 24px;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }
    .metric-label {
      font-size: 12px;
      color: var(--text-muted);
    }
    .tag-cloud-mini {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .tag-chip {
      background: var(--bg);
      border: 1px solid var(--border);
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 4px;
      color: var(--text);
    }

    /* Common Section Styles */
    section {
      padding: 80px 0;
      border-bottom: 1px solid var(--border);
    }
    .section-title-wrap {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-subtitle {
      font-size: 13px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 30px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Grid Layouts */
    .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;
    }

    /* Cards */
    .card {
      background-color: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }
    .card-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }
    .card-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* About Section */
    .about-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-content h3 {
      font-size: 24px;
      color: var(--dark);
      margin-bottom: 16px;
      font-weight: 700;
    }
    .about-content p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }
    .about-stat-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 24px;
    }
    .about-stat-box {
      border-left: 3px solid var(--primary);
      padding-left: 12px;
    }
    .about-stat-num {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
    }
    .about-stat-title {
      font-size: 12px;
      color: var(--text-muted);
    }
    .image-media-box {
      background: #ffffff;
      padding: 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }
    .image-media-box img {
      border-radius: calc(var(--radius) - 4px);
      width: 100%;
      height: 280px;
      object-fit: cover;
    }

    /* Workflow Steps */
    .steps-wrapper {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px 20px;
      position: relative;
    }
    .step-number {
      display: inline-block;
      width: 36px;
      height: 36px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      text-align: center;
      line-height: 36px;
      font-weight: 800;
      margin-bottom: 16px;
      font-size: 16px;
    }
    .step-card h4 {
      font-size: 16px;
      color: var(--dark);
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Comparison Table Section */
    .comparison-table-wrapper {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      overflow-x: auto;
      padding: 24px;
    }
    .comparison-score-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: var(--primary-light);
      padding: 16px 24px;
      border-radius: 8px;
      margin-bottom: 24px;
    }
    .score-badge-left {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
    }
    .score-badge-right {
      font-size: 18px;
      font-weight: 800;
      color: var(--primary-dark);
    }
    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .comp-table th, .comp-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border);
    }
    .comp-table th {
      background: var(--bg);
      color: var(--dark);
      font-weight: 700;
    }
    .comp-table td.highlight {
      color: var(--primary-dark);
      font-weight: 700;
      background-color: rgba(10, 143, 130, 0.03);
    }

    /* Service Network */
    .network-container {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 30px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .network-item {
      display: flex;
      gap: 16px;
    }
    .network-icon {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    /* FAQ Accordion */
    .faq-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 8px;
      overflow: hidden;
    }
    .faq-question {
      width: 100%;
      text-align: left;
      padding: 16px 20px;
      background: none;
      border: none;
      font-size: 15px;
      font-weight: 600;
      color: var(--dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-icon {
      font-size: 16px;
      color: var(--primary);
      transition: transform 0.2s;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: var(--bg);
    }
    .faq-answer-inner {
      padding: 16px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px solid var(--border);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* Testimonials */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.02);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 14px;
      color: var(--text);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border);
      padding-top: 14px;
    }
    .author-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }
    .author-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark);
    }
    .author-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Gallery / Media Showcase */
    .media-showcase {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .media-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .media-item img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      transition: transform 0.3s;
    }
    .media-item:hover img {
      transform: scale(1.03);
    }
    .media-info {
      padding: 16px;
    }
    .media-info h4 {
      font-size: 15px;
      color: var(--dark);
      margin-bottom: 6px;
    }
    .media-info p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Articles / Knowledge Section */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .article-card {
      background: #ffffff;
      border: 1px solid var(--border);
      padding: 18px 20px;
      border-radius: 8px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: all 0.2s;
    }
    .article-card:hover {
      border-color: var(--primary);
      background-color: var(--primary-light);
    }
    .article-card a {
      font-size: 14px;
      font-weight: 600;
      color: var(--dark);
    }

    /* Form Section */
    .contact-form-wrap {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: 1fr 1fr;
      overflow: hidden;
    }
    .form-info-side {
      padding: 40px;
      background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
      color: #ffffff;
    }
    .form-info-side h3 {
      font-size: 24px;
      margin-bottom: 16px;
    }
    .form-info-side p {
      font-size: 14px;
      line-height: 1.6;
      opacity: 0.9;
      margin-bottom: 30px;
    }
    .contact-details {
      list-style: none;
      font-size: 14px;
      line-height: 2;
    }
    .contact-details li strong {
      display: inline-block;
      width: 90px;
    }
    .form-fields-side {
      padding: 40px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--dark);
    }
    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border);
      border-radius: 6px;
      font-size: 14px;
      background-color: var(--bg);
      outline: none;
      transition: border 0.2s;
    }
    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* Token Price & Agent */
    .agent-box {
      background: #ffffff;
      border: 2px dashed var(--primary);
      border-radius: var(--radius);
      padding: 30px;
      text-align: center;
      margin-top: 30px;
    }

    /* Footer */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border);
      padding: 60px 0 30px;
      color: var(--text);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      font-size: 13px;
      line-height: 2;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
    }
    .friend-links-box a {
      background: var(--bg);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid var(--border);
      color: var(--text);
    }
    .friend-links-box a:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border);
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary-dark);
      font-weight: 700;
      position: relative;
    }
    .float-btn:hover {
      background: var(--primary-light);
    }
    .qrcode-pop {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: 8px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      display: none;
      width: 140px;
      text-align: center;
    }
    .qrcode-pop img {
      width: 100%;
      height: auto;
      margin-bottom: 6px;
    }
    .qrcode-pop span {
      font-size: 12px;
      color: var(--text);
    }
    .float-kefu:hover .qrcode-pop {
      display: block;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .about-wrap {
        grid-template-columns: 1fr;
      }
      .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }
      .faq-list {
        grid-template-columns: 1fr;
      }
      .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-form-wrap {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-links.active {
        display: flex;
      }
      .grid-3, .grid-4, .review-grid, .media-showcase, .network-container, .steps-wrapper {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 28px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
    }