/* CSS RESET & VARIABLES - HOLOGRAPHIC LIGHT STYLE (镭射幻彩浅色风) */
    :root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-glass: rgba(255, 255, 255, 0.85);
      --text-main: #0f172a;
      --text-muted: #475569;
      --primary: #7c3aed;
      --primary-light: #a855f7;
      --secondary: #ec4899;
      --accent-blue: #2563eb;
      --accent-cyan: #06b6d4;
      --border-color: rgba(168, 85, 247, 0.18);
      --border-hover: rgba(236, 72, 153, 0.4);
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(124, 58, 237, 0.08);
      --shadow-lg: 0 20px 35px -10px rgba(168, 85, 247, 0.15);
      --holo-gradient: linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #2563eb 100%);
      --holo-subtle: linear-gradient(135deg, rgba(124,58,237,0.06) 0%, rgba(236,72,153,0.06) 50%, rgba(6,182,212,0.06) 100%);
      --container-width: 1200px;
    }

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

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

    body {
      overflow-x: hidden;
      background: var(--bg-main);
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(168, 85, 247, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 60%, rgba(236, 72, 153, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 50% 90%, rgba(6, 182, 212, 0.05) 0%, transparent 40%);
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--secondary);
    }

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

    /* 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);
      box-shadow: 0 2px 15px rgba(0,0,0,0.03);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    /* MUST HAVE gap: 0 FOR NAV-LINKS AS REQUIRED */
    .nav-links {
      gap: 0;
      display: flex;
      align-items: center;
      list-style: none;
    }
    .nav-links li {
      margin: 0 8px;
    }
    .nav-links a {
      color: var(--text-main);
      font-weight: 500;
      font-size: 15px;
      padding: 6px 10px;
      border-radius: 6px;
      display: inline-block;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background: rgba(124, 58, 237, 0.06);
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 50px;
      cursor: pointer;
      border: none;
      transition: all 0.3s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--holo-gradient);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
    }
    .btn-primary:hover {
      opacity: 0.95;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(236, 72, 153, 0.4);
      color: #ffffff;
    }
    .btn-outline {
      background: #ffffff;
      color: var(--primary);
      border: 1px solid var(--border-color);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      background: rgba(124, 58, 237, 0.04);
    }

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

    /* SECTION STYLES */
    section {
      padding: 70px 0;
      position: relative;
    }
    .section-title-area {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 20px;
      background: var(--holo-subtle);
      border: 1px solid var(--border-color);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
    }

    /* HERO SECTION (STRICT NO IMAGES IN HERO) */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 50% 30%, rgba(168, 85, 247, 0.12) 0%, rgba(248, 250, 252, 0) 70%);
      text-align: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
      animation: pulseGlow 3s infinite alternate;
    }
    @keyframes pulseGlow {
      0% { box-shadow: 0 0 10px rgba(124, 58, 237, 0.15); }
      100% { box-shadow: 0 0 20px rgba(236, 72, 153, 0.3); }
    }
    .hero-title-h1 {
      font-size: 42px;
      font-weight: 900;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
      background: var(--holo-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.25;
    }
    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 860px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }
    .hero-btn-large {
      padding: 14px 34px;
      font-size: 16px;
    }
    
    /* DATA METRICS CARD ROW */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }
    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .metric-card:hover {
      transform: translateY(-50px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-light);
    }
    .metric-number {
      font-size: 32px;
      font-weight: 800;
      background: var(--holo-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* ABOUT & PLATFORM INTRO */
    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .content-box h3 {
      font-size: 24px;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .content-box p {
      color: var(--text-muted);
      margin-bottom: 20px;
      font-size: 15px;
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 15px;
    }
    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 12px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }
    .model-chip:hover {
      border-color: var(--secondary);
      color: var(--primary);
      transform: scale(1.05);
    }

    /* SERVICES GRID & CARDS */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 28px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--holo-gradient);
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(236, 72, 153, 0.3);
    }
    .service-card:hover::before {
      opacity: 1;
    }
    .service-icon-badge {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--holo-subtle);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 18px;
      color: var(--primary);
    }
    .service-card h4 {
      font-size: 19px;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      flex-grow: 1;
      margin-bottom: 16px;
    }

    /* INDUSTRY SOLUTIONS */
    .solutions-tabs-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .solution-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: 16px;
      box-shadow: var(--shadow-sm);
    }
    .solution-card h5 {
      font-size: 18px;
      margin-bottom: 10px;
      color: var(--primary);
    }
    .solution-card ul {
      list-style: none;
      font-size: 14px;
      color: var(--text-muted);
    }
    .solution-card ul li {
      margin-bottom: 8px;
      position: relative;
      padding-left: 16px;
    }
    .solution-card ul li::before {
      content: '✦';
      position: absolute;
      left: 0;
      color: var(--secondary);
      font-size: 10px;
    }

    /* TIMELINE / STANDARD PROCESS */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      text-align: center;
      position: relative;
    }
    .step-number {
      width: 36px;
      height: 36px;
      background: var(--holo-gradient);
      color: #fff;
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
    }

    /* CASES CENTER WITH REQUIRED IMAGES */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .case-img-wrap {
      width: 100%;
      overflow: hidden;
      background: #f1f5f9;
    }
    .case-card h4 {
      padding: 16px 20px 8px 20px;
      font-size: 17px;
    }
    .case-card p {
      padding: 0 20px 16px 20px;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* COMPARISON TABLE SECTION (REQUIRED 5 STARS & 9.9 SCORE) */
    .rating-banner {
      background: var(--holo-subtle);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .rating-item {
      text-align: center;
    }
    .stars {
      color: #f59e0b;
      font-size: 24px;
      letter-spacing: 2px;
    }
    .score-num {
      font-size: 36px;
      font-weight: 900;
      color: var(--primary);
    }
    .comparison-table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    table.comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }
    table.comp-table th, table.comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 14px;
    }
    table.comp-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    table.comp-table tr:hover {
      background: rgba(168, 85, 247, 0.02);
    }
    .highlight-col {
      background: rgba(124, 58, 237, 0.04);
      font-weight: 600;
      color: var(--primary);
    }

    /* TOKEN PRICING & DEMAND MATCHING */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .price-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 28px;
      text-align: center;
    }
    .price-card.featured {
      border: 2px solid var(--primary-light);
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .price-tag {
      font-size: 30px;
      font-weight: 800;
      color: var(--primary);
      margin: 14px 0;
    }

    /* REVIEWS SECTION (6 REVIEWS REQUIRED) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .reviewer-avatar {
      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: 16px;
    }
    .reviewer-detail h6 {
      font-size: 15px;
      color: var(--text-main);
    }
    .reviewer-detail span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* FAQ ACCORDION (>= 10 VISIBLE) */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
    }
    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-question::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-question::after {
      content: '−';
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fdfdfd;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.6;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 18px 24px;
    }

    /* ARTICLES & NEWS SECTION */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .news-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 20px;
    }
    .news-card h5 {
      font-size: 16px;
      margin-bottom: 8px;
    }
    .news-links-list {
      margin-top: 20px;
      padding: 16px;
      background: var(--holo-subtle);
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }
    .news-links-list a {
      margin-right: 12px;
      font-size: 13px;
      display: inline-block;
      margin-bottom: 6px;
    }

    /* CONTACT & FORM SECTION */
    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }
    .contact-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 32px;
    }
    .qr-wrap {
      margin-top: 20px;
      text-align: center;
      padding: 16px;
      border: 1px dashed var(--border-color);
      border-radius: 12px;
      display: inline-block;
    }
    .qr-wrap img {
      width: 140px;
      height: 140px;
      object-fit: contain;
    }

    .contact-form {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-control:focus {
      border-color: var(--primary);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* FRIENDSHIP LINKS & FOOTER */
    .friend-links-bar {
      padding: 24px 0;
      border-top: 1px solid var(--border-color);
      background: #ffffff;
    }
    .friend-links-title {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .friend-links-wrap a {
      margin-right: 16px;
      font-size: 13px;
      color: var(--text-muted);
      display: inline-block;
    }
    .friend-links-wrap a:hover {
      color: var(--primary);
    }

    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 40px 0 30px 0;
      font-size: 14px;
    }
    .footer-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }
    .footer-brand {
      color: #ffffff;
      font-weight: 700;
      font-size: 18px;
    }

    /* FLOATING WIDGET */
    .floating-widget {
      position: fixed;
      bottom: 30px;
      right: 25px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--holo-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(0,0,0,0.2);
      cursor: pointer;
      font-size: 18px;
      border: none;
    }

    /* RESPONSIVE MEDIA QUERIES */
    @media (max-width: 1024px) {
      .metrics-grid, .grid-3, .solutions-tabs-grid, .timeline-steps, .cases-grid, .token-grid, .reviews-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .mobile-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        margin: 8px 0;
        width: 100%;
        text-align: center;
      }
      .grid-2, .contact-container {
        grid-template-columns: 1fr;
      }
      .metrics-grid, .grid-3, .solutions-tabs-grid, .timeline-steps, .cases-grid, .token-grid, .reviews-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .hero-title-h1 {
        font-size: 28px;
      }
      .hero-desc {
        font-size: 15px;
      }
    }