:root {
      --primary-gradient: linear-gradient(135deg, #ff5e62 0%, #ff9966 50%, #4facfe 100%);
      --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --bg-page: #f9fbfd;
      --bg-card: #ffffff;
      --border-color: #e5e7eb;
      --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }
    * {
      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-page);
      color: var(--text-main);
      line-height: 1.6;
    }
    body {
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
      background: radial-gradient(circle at 10% 20%, rgba(255, 153, 102, 0.05) 0%, transparent 40%),
                  radial-gradient(circle at 90% 80%, rgba(79, 172, 254, 0.05) 0%, transparent 40%),
                  #f9fbfd;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* Header */
    header {
      position: sticky;
      top: 0;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      z-index: 1000;
      transition: all 0.3s ease;
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }
    .logo-box img {
      height: 38px;
      width: auto;
      display: block;
    }
    .logo-box span {
      font-size: 20px;
      font-weight: 700;
      background: linear-gradient(135deg, #ff5e62, #4facfe);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      padding: 8px 12px;
      font-size: 14px;
      color: var(--text-main);
      text-decoration: none;
      font-weight: 500;
      transition: color 0.2s, background-color 0.2s;
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover {
      color: #ff5e62;
      background: rgba(255, 94, 98, 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: 30px;
      text-decoration: none;
      transition: all 0.25s ease;
      cursor: pointer;
      border: none;
    }
    .btn-primary {
      background: linear-gradient(135deg, #ff5e62, #ff9966);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 94, 98, 0.35);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 94, 98, 0.45);
    }
    .btn-secondary {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
    }
    .btn-secondary:hover {
      border-color: #4facfe;
      color: #4facfe;
      transform: translateY(-2px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      padding: 90px 0 60px;
      text-align: center;
      position: relative;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      border-radius: 20px;
      background: rgba(255, 94, 98, 0.08);
      border: 1px solid rgba(255, 94, 98, 0.2);
      color: #ff5e62;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .hero-title {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      color: #111827;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      background: linear-gradient(135deg, #ff5e62 0%, #ff9966 40%, #4facfe 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 36px;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
    }
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .metric-item {
      border-right: 1px solid var(--border-color);
      padding: 0 16px;
    }
    .metric-item:last-child {
      border-right: none;
    }
    .metric-num {
      font-size: 28px;
      font-weight: 700;
      color: #111827;
      margin-bottom: 4px;
    }
    .metric-num span {
      font-size: 16px;
      color: #ff5e62;
    }
    .metric-label {
      font-size: 13px;
      color: var(--text-light);
    }

    /* Sections Shared */
    section {
      padding: 70px 0;
      position: relative;
    }
    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }
    .section-subtitle {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: #4facfe;
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: #111827;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
    }

    /* Cards & Grids */
    .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: 32px;
      align-items: center;
    }
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.3s ease;
      position: relative;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 94, 98, 0.4);
    }
    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(255, 94, 98, 0.1), rgba(79, 172, 254, 0.1));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
      color: #ff5e62;
    }
    .card-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #111827;
    }
    .card-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Models Cloud */
    .model-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }
    .model-tag {
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      font-size: 13px;
      font-weight: 500;
      color: var(--text-main);
      transition: all 0.2s;
    }
    .model-tag:hover {
      background: linear-gradient(135deg, #ff5e62, #4facfe);
      color: #ffffff;
      border-color: transparent;
      transform: translateY(-2px);
    }

    /* Comparison Section */
    .comparison-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }
    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, rgba(255, 94, 98, 0.08), rgba(79, 172, 254, 0.08));
      border: 1px solid rgba(255, 94, 98, 0.2);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      margin-bottom: 28px;
    }
    .rating-score {
      font-size: 32px;
      font-weight: 800;
      color: #ff5e62;
    }
    .stars {
      color: #f59e0b;
      font-size: 18px;
      margin-left: 8px;
    }
    .table-container {
      overflow-x: auto;
    }
    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .comp-table th, .comp-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }
    .comp-table th {
      background: #f9fafb;
      font-weight: 700;
      color: #111827;
    }
    .comp-table tr:hover td {
      background: #fdfefe;
    }
    .highlight-cell {
      color: #ff5e62;
      font-weight: 700;
    }

    /* Timeline Workflow */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .process-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
    }
    .process-step {
      width: 36px;
      height: 36px;
      line-height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ff5e62, #ff9966);
      color: #ffffff;
      font-weight: 700;
      margin: 0 auto 16px;
    }

    /* Media & Case showcase */
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .showcase-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .showcase-item .img-wrapper {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      background: #eee;
    }
    .showcase-item .img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s;
    }
    .showcase-item:hover .img-wrapper img {
      transform: scale(1.04);
    }
    .showcase-info {
      padding: 14px;
    }
    .showcase-info h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .showcase-info p {
      font-size: 13px;
      color: var(--text-light);
    }

    /* Reviews Section */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-content {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f3f4f6;
      padding-top: 12px;
    }
    .review-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4facfe, #00f2fe);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }
    .review-meta h5 {
      font-size: 14px;
      color: #111827;
    }
    .review-meta p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* FAQ Section */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-q {
      padding: 18px 24px;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      transition: background 0.2s;
    }
    .faq-q:hover {
      background: #f9fafb;
    }
    .faq-icon {
      font-size: 18px;
      transition: transform 0.3s;
      color: #4facfe;
    }
    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #ffffff;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.6;
      padding: 0 24px;
    }
    .faq-item.active .faq-a {
      max-height: 300px;
      padding: 0 24px 18px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    /* Form & Contact */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 6px;
      color: #374151;
    }
    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: #ff5e62;
    }
    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }
    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .contact-qr {
      margin-top: 16px;
      padding: 16px;
      background: #f9fafb;
      border-radius: var(--radius-md);
      display: inline-flex;
      align-items: center;
      gap: 16px;
    }
    .contact-qr img {
      width: 90px;
      height: 90px;
      border-radius: var(--radius-sm);
      object-fit: cover;
    }

    /* Articles Section */
    .article-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 20px;
    }
    .article-btn {
      padding: 8px 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      font-size: 13px;
      text-decoration: none;
      color: var(--text-muted);
      transition: all 0.2s;
    }
    .article-btn:hover {
      border-color: #4facfe;
      color: #4facfe;
    }

    /* Footer */
    footer {
      background: #111827;
      color: #9ca3af;
      padding: 60px 0 30px;
      margin-top: auto;
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      padding-bottom: 40px;
      border-bottom: 1px solid #1f2937;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      margin-bottom: 16px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links a, .footer-col a {
      color: #9ca3af;
      text-decoration: none;
      transition: color 0.2s;
    }
    .footer-links a:hover, .footer-col a:hover {
      color: #ff9966;
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 24px;
      font-size: 13px;
    }
    .footer-flinks {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 12px;
    }

    /* Float Bar */
    .floating-bar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }
    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #111827;
      text-decoration: none;
      cursor: pointer;
      border: 1px solid var(--border-color);
      transition: all 0.2s;
    }
    .float-btn:hover {
      background: #ff5e62;
      color: #ffffff;
      border-color: #ff5e62;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .grid-3, .grid-4, .showcase-grid, .process-grid, .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 28px;
      }
      .grid-2, .grid-3, .grid-4, .showcase-grid, .process-grid, .review-grid, .hero-metrics, .contact-grid {
        grid-template-columns: 1fr;
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 12px;
      }
      .metric-item:last-child {
        border-bottom: none;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }