:root {
      --primary: #4f46e5;
      --primary-dark: #3730a3;
      --accent: #ff0055;
      --accent-hover: #e0004c;
      --secondary: #00d2ff;
      --dark: #0f172a;
      --text: #1e293b;
      --text-muted: #64748b;
      --light-bg: #f8fafc;
      --card-bg: #ffffff;
      --border: #e2e8f0;
      --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #ff0055 100%);
      --gradient-vibrant: linear-gradient(135deg, #ff0055 0%, #ff7a00 100%);
      --gradient-cyan: linear-gradient(135deg, #00d2ff 0%, #0066ff 100%);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
      --shadow-hover: 0 20px 35px -8px rgba(79, 70, 229, 0.15);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--light-bg);
      color: var(--text);
      line-height: 1.6;
      overflow-x: hidden;
    }

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section-spacing {
      padding-top: 80px;
      padding-bottom: 80px;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary);
      font-weight: 700;
      font-size: 0.875rem;
      border-radius: 999px;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--dark);
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 2px solid transparent;
      transition: var(--transition);
    }

    .btn-primary {
      background: var(--gradient-brand);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(255, 0, 85, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(255, 0, 85, 0.45);
      color: #ffffff;
    }

    .btn-accent {
      background: var(--accent);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(255, 0, 85, 0.3);
    }

    .btn-accent:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      color: #ffffff;
    }

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

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

    .btn-white {
      background: #ffffff;
      color: var(--primary);
      font-weight: 700;
    }

    .btn-white:hover {
      background: #f1f5f9;
      transform: translateY(-2px);
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      left: 0;
      right: 0;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      z-index: 1000;
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.4rem;
      color: var(--dark);
    }

    .brand-logo-wrap img {
      max-height: 42px;
      width: auto;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links a {
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
    }

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

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

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--dark);
    }

    /* Hero Section (No Images as required) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(0, 210, 255, 0.12) 0%, rgba(255, 255, 255, 0) 50%),
                  radial-gradient(circle at 20% 80%, rgba(255, 0, 85, 0.08) 0%, rgba(255, 255, 255, 0) 50%),
                  #ffffff;
      padding: 90px 0 80px 0;
      border-bottom: 1px solid var(--border);
      position: relative;
    }

    .hero-content {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: linear-gradient(90deg, rgba(255, 0, 85, 0.1), rgba(79, 70, 229, 0.1));
      border: 1px solid rgba(255, 0, 85, 0.25);
      color: var(--accent);
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 0.875rem;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 3rem;
      line-height: 1.2;
      font-weight: 900;
      color: var(--dark);
      margin-bottom: 20px;
    }

    .hero-title span {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      line-height: 1.6;
      color: var(--text-muted);
      margin-bottom: 36px;
    }

    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-highlights {
      display: flex;
      gap: 24px;
      border-top: 1px solid var(--border);
      padding-top: 24px;
    }

    .highlight-item {
      display: flex;
      flex-direction: column;
    }

    .highlight-num {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
    }

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

    .hero-tech-card {
      background: #ffffff;
      border: 2px solid #e0e7ff;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-hover);
      position: relative;
    }

    .tech-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border);
    }

    .tech-status-dot {
      display: inline-block;
      width: 10px;
      height: 10px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10b981;
      margin-right: 6px;
    }

    .engine-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .engine-box {
      background: #f8fafc;
      border: 1px solid var(--border);
      padding: 16px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }

    .engine-box:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .engine-box-title {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--dark);
      margin-bottom: 4px;
    }

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

    /* Model Tags Marquee Style */
    .model-cloud-section {
      background: #ffffff;
      padding: 36px 0;
      border-bottom: 1px solid var(--border);
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 1100px;
      margin: 0 auto;
    }

    .model-pill {
      background: #f1f5f9;
      color: var(--text);
      font-weight: 600;
      font-size: 0.85rem;
      padding: 6px 14px;
      border-radius: 999px;
      border: 1px solid var(--border);
      transition: var(--transition);
    }

    .model-pill:hover {
      background: var(--dark);
      color: #ffffff;
      border-color: var(--dark);
      transform: translateY(-2px);
    }

    .model-pill.active-pill {
      background: rgba(255, 0, 85, 0.1);
      border-color: var(--accent);
      color: var(--accent);
    }

    /* Feature Grid / Services */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }

    .feature-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(79, 70, 229, 0.3);
    }

    .feature-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.25rem;
      margin-bottom: 20px;
      color: #ffffff;
    }

    .bg-icon-1 { background: var(--gradient-brand); }
    .bg-icon-2 { background: var(--gradient-vibrant); }
    .bg-icon-3 { background: var(--gradient-cyan); }
    .bg-icon-4 { background: linear-gradient(135deg, #10b981 0%, #047857 100%); }
    .bg-icon-5 { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); }
    .bg-icon-6 { background: linear-gradient(135deg, #ec4899 0%, #be185d 100%); }

    .feature-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .feature-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .feature-list {
      margin-top: auto;
      border-top: 1px dashed var(--border);
      padding-top: 14px;
    }

    .feature-list li {
      font-size: 0.85rem;
      color: var(--text);
      display: flex;
      align-items: center;
      gap: 6px;
      margin-bottom: 6px;
    }

    .feature-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: bold;
    }

    /* Scenario List / Solutions */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 20px;
    }

    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 20px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .scenario-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--accent);
      opacity: 0;
      transition: var(--transition);
    }

    .scenario-card:hover {
      border-color: var(--accent);
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    .scenario-card:hover::before {
      opacity: 1;
    }

    .scenario-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .scenario-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Platform Showcase & Media Showcase */
    .showcase-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
      margin-top: 40px;
    }

    .showcase-img-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border);
      background: #ffffff;
    }

    .showcase-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: var(--transition);
    }

    .showcase-img-wrap:hover img {
      transform: scale(1.02);
    }

    .showcase-info h3 {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 16px;
    }

    .showcase-info p {
      color: var(--text-muted);
      margin-bottom: 20px;
      font-size: 1rem;
    }

    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
      margin-top: 30px;
    }

    .media-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .media-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .media-card-body {
      padding: 20px;
    }

    .media-card-title {
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 8px;
      color: var(--dark);
    }

    /* Comparison Table */
    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border);
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--dark);
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

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

    .rating-banner {
      background: var(--gradient-brand);
      color: #ffffff;
      padding: 24px 32px;
      border-radius: var(--radius-md);
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-top: 24px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-score {
      font-size: 2.2rem;
      font-weight: 900;
      display: flex;
      align-items: baseline;
      gap: 6px;
    }

    .rating-score span {
      font-size: 1.1rem;
      font-weight: normal;
    }

    /* Workflow Steps */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 24px;
      position: relative;
    }

    .process-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

    .process-card:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
    }

    .process-step-num {
      width: 44px;
      height: 44px;
      background: var(--gradient-vibrant);
      color: #ffffff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
      font-size: 1.1rem;
    }

    .process-title {
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 8px;
      color: var(--dark);
    }

    .process-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    /* Testimonials */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-quote {
      font-size: 0.95rem;
      color: var(--text);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border);
      padding-top: 16px;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .author-meta {
      display: flex;
      flex-direction: column;
    }

    .author-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--dark);
    }

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

    /* FAQ Accordion */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-question::after {
      content: "+";
      font-size: 1.5rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 24px 20px 24px;
    }

    /* Articles / Knowledge Section */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
      margin-top: 24px;
    }

    .article-pill-link {
      background: #ffffff;
      border: 1px solid var(--border);
      padding: 16px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text);
      transition: var(--transition);
    }

    .article-pill-link:hover {
      border-color: var(--primary);
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      transform: translateX(4px);
    }

    /* Agency / Form Section */
    .form-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-info {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 20px;
    }

    .contact-icon {
      width: 40px;
      height: 40px;
      background: rgba(79, 70, 229, 0.1);
      color: var(--primary);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    .demand-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

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

    .form-group label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--dark);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

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

    /* Footer */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 70px 0 30px 0;
      border-top: 1px solid #1e293b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #94a3b8;
      font-size: 0.9rem;
    }

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

    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-bottom: 30px;
    }

    .friend-links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: #cbd5e1;
      margin-bottom: 12px;
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-wrap a {
      color: #94a3b8;
      font-size: 0.85rem;
    }

    .friend-links-wrap a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* Floating CS */
    .floating-cs {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }

    .cs-trigger-btn {
      width: 54px;
      height: 54px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      border: none;
      transition: var(--transition);
    }

    .cs-trigger-btn:hover {
      transform: scale(1.08);
    }

    .cs-popup-card {
      position: absolute;
      bottom: 65px;
      right: 0;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-hover);
      border: 1px solid var(--border);
      width: 200px;
      text-align: center;
      display: none;
    }

    .cs-popup-card.show {
      display: block;
    }

    .cs-popup-card img {
      width: 140px;
      height: 140px;
      margin-bottom: 8px;
    }

    .cs-popup-card p {
      font-size: 0.8rem;
      color: var(--dark);
      font-weight: 600;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .hero-content {
        grid-template-columns: 1fr;
      }
      .showcase-layout {
        grid-template-columns: 1fr;
      }
      .form-layout {
        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: 76px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .hero-title {
        font-size: 2.2rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }