/* Reset & Base */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
      color: #1e293b;
      background-color: #f8fafc;
    }
    body {
      overflow-x: hidden;
      background: linear-gradient(120deg, rgba(241, 245, 249, 0.9) 0%, rgba(243, 232, 255, 0.6) 50%, rgba(224, 242, 254, 0.7) 100%);
      line-height: 1.6;
    }

    /* Holographic variables & Utils */
    :root {
      --laser-gradient: linear-gradient(135deg, #a78bfa 0%, #ec4899 35%, #3b82f6 70%, #10b981 100%);
      --laser-text: linear-gradient(90deg, #8b5cf6, #ec4899, #3b82f6);
      --card-shadow: 0 12px 40px rgba(139, 92, 246, 0.08), 0 2px 4px rgba(236, 72, 153, 0.04);
      --container-max: 1200px;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      text-align: center;
      margin-bottom: 3rem;
      background: var(--laser-text);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      position: relative;
    }

    .section-title::after {
      content: '';
      display: block;
      width: 60px;
      height: 4px;
      background: var(--laser-gradient);
      margin: 0.75rem auto 0;
      border-radius: 2px;
    }

    /* Header Nav */
    header {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 80px;
    }
    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }
    .logo-area span {
      font-size: 1.5rem;
      font-weight: 900;
      color: #0f172a;
      letter-spacing: 1px;
    }
    .nav-menu {
      display: flex;
      gap: 1.5rem;
      align-items: center;
      list-style: none;
    }
    .nav-menu a {
      text-decoration: none;
      color: #475569;
      font-size: 0.95rem;
      font-weight: 500;
      transition: color 0.3s;
    }
    .nav-menu a:hover {
      color: #8b5cf6;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .btn-laser {
      background: var(--laser-gradient);
      color: #fff !important;
      padding: 0.6rem 1.5rem;
      border-radius: 50px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(236, 72, 153, 0.2);
      transition: transform 0.3s, box-shadow 0.3s;
    }
    .btn-laser:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(236, 72, 153, 0.4);
    }
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
    }
    .menu-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: #334155;
      border-radius: 2px;
      transition: 0.3s;
    }

    /* Hero Section (No Image Allowed) */
    .hero-section {
      padding: 100px 0 120px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    /* Holographic backdrops */
    .hero-glow-1 {
      position: absolute;
      top: -20%;
      left: -10%;
      width: 50%;
      height: 70%;
      background: radial-gradient(circle, rgba(167, 139, 250, 0.2) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-glow-2 {
      position: absolute;
      bottom: -10%;
      right: -10%;
      width: 50%;
      height: 70%;
      background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-tag {
      display: inline-block;
      padding: 0.5rem 1.2rem;
      background: rgba(255, 255, 255, 0.8);
      border: 1px solid rgba(167, 139, 250, 0.4);
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 600;
      color: #7c3aed;
      margin-bottom: 2rem;
      box-shadow: 0 4px 12px rgba(167, 139, 250, 0.1);
    }
    h1.hero-title {
      font-size: 3.2rem;
      line-height: 1.2;
      font-weight: 900;
      margin-bottom: 1.5rem;
      color: #0f172a;
    }
    h1.hero-title span {
      background: var(--laser-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.25rem;
      color: #475569;
      max-width: 800px;
      margin: 0 auto 2.5rem;
    }
    .hero-buttons {
      display: flex;
      gap: 1.5rem;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 4rem;
    }
    .btn-outline {
      background: rgba(255, 255, 255, 0.8);
      color: #1e293b !important;
      padding: 0.6rem 1.5rem;
      border-radius: 50px;
      font-weight: 600;
      border: 1px solid rgba(226, 232, 240, 1);
      cursor: pointer;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      transition: all 0.3s;
    }
    .btn-outline:hover {
      background: #f1f5f9;
      border-color: #cbd5e1;
      transform: translateY(-2px);
    }
    .hero-badge-group {
      display: flex;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
    }
    .hero-badge {
      font-size: 0.85rem;
      background: rgba(255, 255, 255, 0.6);
      border: 1px solid rgba(226, 232, 240, 0.8);
      padding: 0.4rem 1rem;
      border-radius: 4px;
      color: #64748b;
    }

    /* Core Stats (数据指标卡片) */
    .stats-section {
      padding: 2rem 0;
      position: relative;
      z-index: 10;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.5rem;
    }
    .stat-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 2rem;
      text-align: center;
      box-shadow: var(--card-shadow);
      backdrop-filter: blur(10px);
      transition: transform 0.3s;
    }
    .stat-card:hover {
      transform: translateY(-5px);
    }
    .stat-number {
      font-size: 2.8rem;
      font-weight: 900;
      background: var(--laser-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1;
      margin-bottom: 0.5rem;
    }
    .stat-label {
      font-size: 1rem;
      color: #64748b;
      font-weight: 600;
    }

    /* About Section */
    .about-section {
      padding: 80px 0;
    }
    .about-layout {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .about-content h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 1.5rem;
    }
    .about-content p {
      color: #475569;
      margin-bottom: 1.5rem;
      font-size: 1.05rem;
    }
    .about-image-wrapper {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 4px solid rgba(255, 255, 255, 0.8);
    }
    .about-image-wrapper img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.5s;
    }
    .about-image-wrapper:hover img {
      transform: scale(1.03);
    }

    /* Services & Capability Cards */
    .services-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.3);
    }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }
    .service-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 2.5rem;
      box-shadow: var(--card-shadow);
      transition: transform 0.3s, box-shadow 0.3s;
      position: relative;
      overflow: hidden;
    }
    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--laser-gradient);
      opacity: 0;
      transition: opacity 0.3s;
    }
    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px rgba(139, 92, 246, 0.12);
    }
    .service-card:hover::before {
      opacity: 1;
    }
    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 1.5rem;
    }
    .service-card h4 {
      font-size: 1.35rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 1rem;
    }
    .service-card p {
      color: #64748b;
      font-size: 0.95rem;
    }

    /* Model Cloud */
    .model-cloud-section {
      padding: 60px 0;
      text-align: center;
    }
    .model-cloud-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 0.8rem;
      max-width: 1000px;
      margin: 0 auto;
    }
    .model-tag {
      padding: 0.5rem 1.2rem;
      background: #fff;
      border: 1px solid rgba(226, 232, 240, 0.8);
      border-radius: 50px;
      font-size: 0.9rem;
      color: #334155;
      font-weight: 500;
      box-shadow: 0 2px 5px rgba(0,0,0,0.02);
      transition: all 0.3s;
    }
    .model-tag:hover {
      background: var(--laser-gradient);
      color: #fff;
      border-color: transparent;
      transform: scale(1.05);
    }

    /* Production Scenarios */
    .production-section {
      padding: 80px 0;
    }
    .prod-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 4rem;
      align-items: center;
    }
    .prod-list {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }
    .prod-item {
      display: flex;
      align-items: flex-start;
      gap: 1rem;
      background: #fff;
      padding: 1.5rem;
      border-radius: 16px;
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--card-shadow);
    }
    .prod-num {
      width: 32px;
      height: 32px;
      background: var(--laser-gradient);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
    }
    .prod-text h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 0.25rem;
    }
    .prod-text p {
      font-size: 0.9rem;
      color: #64748b;
    }

    /* Workflow (标准化AIGC流程) */
    .workflow-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.2);
    }
    .workflow-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 2rem;
      position: relative;
    }
    .step-card {
      background: #fff;
      border: 1px solid rgba(226, 232, 240, 0.8);
      border-radius: 16px;
      padding: 2rem;
      text-align: center;
      position: relative;
      box-shadow: var(--card-shadow);
    }
    .step-badge {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--laser-gradient);
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      margin: 0 auto 1.5rem;
    }
    .step-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .step-card p {
      font-size: 0.85rem;
      color: #64748b;
    }

    /* Solutions (全行业解决方案) */
    .solutions-section {
      padding: 80px 0;
    }
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }
    .sol-card {
      background: #fff;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .sol-img-wrapper {
      height: 180px;
      overflow: hidden;
      background: #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }
    .sol-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .sol-content {
      padding: 2rem;
    }
    .sol-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: #8b5cf6;
      background: rgba(139, 92, 246, 0.1);
      padding: 0.25rem 0.75rem;
      border-radius: 50px;
      margin-bottom: 1rem;
    }
    .sol-content h4 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: #0f172a;
    }
    .sol-content p {
      font-size: 0.9rem;
      color: #64748b;
    }

    /* Technology Standards */
    .tech-standards-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.3);
    }
    .standards-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 2rem;
    }
    .standard-item {
      background: #fff;
      border: 1px solid rgba(226, 232, 240, 0.8);
      padding: 2.5rem;
      border-radius: 16px;
      box-shadow: var(--card-shadow);
    }
    .standard-item h4 {
      font-size: 1.25rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    .standard-item h4::before {
      content: '✓';
      color: #10b981;
      font-weight: bold;
    }
    .standard-item p {
      font-size: 0.95rem;
      color: #64748b;
    }

    /* Comparison Table (对比评测) */
    .comparison-section {
      padding: 80px 0;
    }
    .comparison-wrapper {
      background: #fff;
      border-radius: 24px;
      padding: 3rem;
      box-shadow: var(--card-shadow);
      border: 1px solid rgba(226, 232, 240, 0.8);
      overflow-x: auto;
    }
    .comparison-header-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1.5rem;
      margin-bottom: 2rem;
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 1.5rem;
    }
    .meta-score {
      display: flex;
      align-items: center;
      gap: 1.5rem;
    }
    .score-badge {
      background: var(--laser-gradient);
      color: #fff;
      padding: 0.5rem 1.2rem;
      border-radius: 50px;
      font-size: 1.2rem;
      font-weight: 800;
    }
    .stars {
      color: #fbbf24;
      font-size: 1.5rem;
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }
    .comparison-table th, .comparison-table td {
      padding: 1.2rem 1.5rem;
      border-bottom: 1px solid #f1f5f9;
    }
    .comparison-table th {
      font-weight: 700;
      color: #0f172a;
    }
    .comparison-table tr:hover {
      background: #f8fafc;
    }
    .check-yes {
      color: #10b981;
      font-weight: bold;
    }
    .check-no {
      color: #ef4444;
      font-weight: bold;
    }

    /* Token Price API (Token比价参考) */
    .pricing-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.2);
    }
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }
    .price-card {
      background: #fff;
      border: 1px solid rgba(226, 232, 240, 0.8);
      border-radius: 20px;
      padding: 2.5rem;
      text-align: center;
      box-shadow: var(--card-shadow);
      position: relative;
    }
    .price-card.featured {
      border: 2px solid #8b5cf6;
    }
    .price-card.featured::after {
      content: '推荐';
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--laser-gradient);
      color: white;
      font-size: 0.75rem;
      font-weight: bold;
      padding: 0.25rem 0.75rem;
      border-radius: 50px;
    }
    .price-model {
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 1rem;
    }
    .price-value {
      font-size: 2.5rem;
      font-weight: 900;
      color: #0f172a;
      margin-bottom: 0.5rem;
    }
    .price-unit {
      font-size: 0.85rem;
      color: #64748b;
      margin-bottom: 2rem;
    }
    .price-features {
      list-style: none;
      text-align: left;
      margin-bottom: 2rem;
    }
    .price-features li {
      padding: 0.5rem 0;
      font-size: 0.9rem;
      color: #475569;
      border-bottom: 1px solid #f1f5f9;
    }

    /* Training & Certificate (职业技术培训) */
    .training-section {
      padding: 80px 0;
    }
    .training-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
    }
    .training-card {
      background: #fff;
      border-radius: 20px;
      padding: 2.5rem;
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .training-header h4 {
      font-size: 1.3rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 0.5rem;
    }
    .training-org {
      font-size: 0.85rem;
      color: #8b5cf6;
      font-weight: 700;
      margin-bottom: 1.5rem;
    }
    .training-details {
      margin-bottom: 2rem;
    }
    .training-details p {
      font-size: 0.95rem;
      color: #475569;
      margin-bottom: 0.5rem;
    }

    /* Network & Franchise (全国服务网络 & 加盟代理) */
    .network-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.3);
    }
    .network-layout {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 4rem;
      align-items: center;
    }
    .franchise-box {
      background: #fff;
      padding: 3rem;
      border-radius: 24px;
      box-shadow: var(--card-shadow);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .franchise-box h4 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 1.5rem;
      color: #0f172a;
    }
    .franchise-list {
      list-style: none;
      margin-bottom: 2rem;
    }
    .franchise-list li {
      padding: 0.6rem 0;
      display: flex;
      align-items: center;
      gap: 0.8rem;
      font-size: 1rem;
      color: #475569;
    }
    .franchise-list li::before {
      content: '✦';
      color: #ec4899;
      font-weight: bold;
    }

    /* Portfolio (客户案例) */
    .portfolio-section {
      padding: 80px 0;
    }
    .portfolio-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
    }
    .portfolio-card {
      background: #fff;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .portfolio-img-box {
      position: relative;
      overflow: hidden;
    }
    .portfolio-img-box img {
      width: 100%;
      display: block;
    }
    .portfolio-info {
      padding: 2rem;
    }
    .portfolio-info h4 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 0.5rem;
      color: #0f172a;
    }
    .portfolio-info p {
      color: #64748b;
      font-size: 0.95rem;
    }

    /* Testimonials (用户评论) */
    .testimonials-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.2);
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
    }
    .testi-card {
      background: #fff;
      border-radius: 20px;
      padding: 2.5rem;
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--card-shadow);
    }
    .testi-header {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1.5rem;
    }
    .testi-avatar {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--laser-gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: bold;
      font-size: 1.2rem;
    }
    .testi-meta h5 {
      font-size: 1.1rem;
      font-weight: 700;
      color: #0f172a;
    }
    .testi-meta span {
      font-size: 0.8rem;
      color: #8b5cf6;
      font-weight: 600;
    }
    .testi-card p {
      font-size: 0.95rem;
      color: #475569;
      line-height: 1.7;
    }

    /* FAQ (常见用户问题) */
    .faq-section {
      padding: 80px 0;
    }
    .faq-wrapper {
      max-width: 800px;
      margin: 0 auto;
    }
    .faq-item {
      background: #fff;
      border: 1px solid rgba(226, 232, 240, 0.8);
      border-radius: 12px;
      margin-bottom: 1rem;
      overflow: hidden;
      box-shadow: var(--card-shadow);
    }
    .faq-question {
      padding: 1.25rem 1.5rem;
      font-weight: 700;
      font-size: 1.05rem;
      color: #0f172a;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #fff;
      transition: background-color 0.3s;
    }
    .faq-question:hover {
      background: #f8fafc;
    }
    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      color: #8b5cf6;
      transition: transform 0.3s;
    }
    .faq-item.active .faq-question::after {
      content: '−';
      transform: rotate(180deg);
    }
    .faq-answer {
      padding: 0 1.5rem;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease-out;
      color: #475569;
      font-size: 0.95rem;
      line-height: 1.7;
      background: #fdfdfd;
    }
    .faq-item.active .faq-answer {
      padding: 1.25rem 1.5rem;
      max-height: 200px;
      border-top: 1px solid #f1f5f9;
    }

    /* Terminology & Troubleshooting (AI术语百科 & 自助排查) */
    .help-center-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.3);
    }
    .help-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 4rem;
    }
    .term-box h4, .trouble-box h4 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 1.5rem;
      color: #0f172a;
    }
    .term-list, .trouble-list {
      display: flex;
      flex-direction: column;
      gap: 1.2rem;
    }
    .term-card, .trouble-card {
      background: #fff;
      border-radius: 12px;
      padding: 1.5rem;
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--card-shadow);
    }
    .term-card h5, .trouble-card h5 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 0.5rem;
    }
    .term-card p, .trouble-card p {
      font-size: 0.9rem;
      color: #64748b;
    }

    /* Articles / Knowledge Base (行业资讯) */
    .articles-section {
      padding: 80px 0;
    }
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }
    .article-card {
      background: #fff;
      border-radius: 16px;
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--card-shadow);
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .article-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 1rem;
      color: #0f172a;
    }
    .article-card p {
      font-size: 0.9rem;
      color: #64748b;
      margin-bottom: 1.5rem;
    }
    .article-link {
      font-size: 0.9rem;
      font-weight: 600;
      color: #8b5cf6;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
    }
    .article-link:hover {
      text-decoration: underline;
    }

    /* Form & Contact (智能需求匹配 & 联系我们) */
    .contact-section {
      padding: 80px 0;
      background: rgba(255, 255, 255, 0.2);
    }
    .contact-layout {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 4rem;
    }
    .form-wrapper {
      background: #fff;
      padding: 3rem;
      border-radius: 24px;
      box-shadow: var(--card-shadow);
      border: 1px solid rgba(226, 232, 240, 0.8);
    }
    .form-wrapper h4 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 2rem;
      color: #0f172a;
    }
    .form-group {
      margin-bottom: 1.5rem;
    }
    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
      color: #475569;
    }
    .form-control {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 1rem;
      outline: none;
      transition: border-color 0.3s;
    }
    .form-control:focus {
      border-color: #8b5cf6;
    }
    .btn-submit {
      width: 100%;
      padding: 0.8rem;
      font-size: 1rem;
      font-weight: 700;
      margin-top: 1rem;
    }
    .contact-info-wrapper {
      display: flex;
      flex-direction: column;
      gap: 2rem;
    }
    .info-card {
      background: #fff;
      border-radius: 16px;
      padding: 2rem;
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--card-shadow);
      display: flex;
      gap: 1.5rem;
      align-items: center;
    }
    .qr-code img {
      width: 100px;
      height: 100px;
      border: 1px solid #f1f5f9;
      border-radius: 8px;
      display: block;
    }
    .info-details h5 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
      color: #0f172a;
    }
    .info-details p {
      font-size: 0.9rem;
      color: #475569;
      margin-bottom: 0.25rem;
    }

    /* Footer */
    footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1.5fr 1.5fr;
      gap: 4rem;
      margin-bottom: 3rem;
      border-bottom: 1px solid #1e293b;
      padding-bottom: 3rem;
    }
    .footer-brand h4 {
      color: #fff;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 1rem;
    }
    .footer-links h5 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 1.2rem;
      font-weight: 700;
    }
    .footer-links ul {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 0.8rem;
    }
    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: color 0.3s;
    }
    .footer-links a:hover {
      color: #fff;
    }
    .friendship-links {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
    }
    .friendship-links a {
      background: #1e293b;
      color: #94a3b8;
      padding: 0.4rem 0.8rem;
      border-radius: 4px;
      text-decoration: none;
      font-size: 0.8rem;
      transition: background 0.3s, color 0.3s;
    }
    .friendship-links a:hover {
      background: #334155;
      color: #fff;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1.5rem;
    }
    .footer-bottom p {
      font-size: 0.85rem;
    }
    .ai-page-home-link {
      color: #fff;
      text-decoration: none;
      font-weight: bold;
    }
    .ai-page-home-link:hover {
      text-decoration: underline;
    }

    /* Floating Customer Service */
    .floating-cs {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
    }
    .cs-btn {
      width: 50px;
      height: 50px;
      background: var(--laser-gradient);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      cursor: pointer;
      position: relative;
    }
    .cs-btn:hover .cs-hover-box {
      display: block;
    }
    .cs-hover-box {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #fff;
      border: 1px solid #e2e8f0;
      padding: 1rem;
      border-radius: 12px;
      box-shadow: var(--card-shadow);
      width: 140px;
      text-align: center;
    }
    .cs-hover-box img {
      width: 100px;
      height: 100px;
      display: block;
      margin: 0 auto 0.5rem;
    }
    .cs-hover-box span {
      font-size: 0.75rem;
      color: #334155;
      font-weight: bold;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .about-layout, .prod-layout, .network-layout, .help-grid, .contact-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
      }
      .portfolio-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }
    }

    @media (max-width: 768px) {
      h1.hero-title {
        font-size: 2.4rem;
      }
      .hero-desc {
        font-size: 1.1rem;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid #e2e8f0;
        padding: 1.5rem;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
      }
      .nav-menu.active {
        display: flex;
      }
      .menu-toggle {
        display: flex;
      }
      .form-wrapper, .franchise-box, .comparison-wrapper {
        padding: 1.5rem;
      }
    }