:root {
      --primary-color: #0b25e2;
      --primary-hover: #071bb3;
      --accent-color: #ff3b00;
      --accent-yellow: #ffd500;
      --text-main: #141824;
      --text-muted: #56607a;
      --bg-page: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #e4e7f1;
      --border-focus: #0b25e2;
      --shadow-sm: 0 4px 12px rgba(20, 24, 36, 0.04);
      --shadow-md: 0 10px 30px rgba(11, 37, 226, 0.08);
      --shadow-lg: 0 20px 40px rgba(11, 37, 226, 0.12);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --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-page);
      color: var(--text-main);
    }
    body {
      background: linear-gradient(180deg, #f0f4ff 0%, #ffffff 500px, #f6f8fe 100%);
      line-height: 1.65;
      font-size: 16px;
      overflow-x: hidden;
      min-height: 100vh;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      display: block;
      max-width: 100%;
      height: auto;
    }
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(16px);
      border-bottom: 2px solid #000;
      box-shadow: 0 4px 0 #000;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-box {
      width: 130px;
      display: flex;
      align-items: center;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links a {
      font-weight: 600;
      color: var(--text-main);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }
    .nav-links a:hover {
      color: var(--primary-color);
      background-color: #edf2ff;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 24px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      border: 2px solid #000;
      cursor: pointer;
      transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.25s ease;
      box-shadow: 3px 3px 0 #000;
      text-align: center;
    }
    .btn:active {
      transform: translate(2px, 2px);
      box-shadow: 1px 1px 0 #000;
    }
    .btn-primary {
      background-color: var(--accent-yellow);
      color: #000;
    }
    .btn-primary:hover {
      background-color: #ffe033;
    }
    .btn-contrast {
      background-color: var(--accent-color);
      color: #fff;
    }
    .btn-contrast:hover {
      background-color: #e03400;
    }
    .btn-secondary {
      background-color: #fff;
      color: #000;
    }
    .btn-secondary:hover {
      background-color: #f3f4f8;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: 2px solid #000;
      padding: 6px 10px;
      font-weight: 900;
      cursor: pointer;
      box-shadow: 2px 2px 0 #000;
    }
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background-color: #000;
      color: var(--accent-yellow);
      font-weight: 800;
      font-size: 13px;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      margin-bottom: 20px;
      border-radius: 4px;
      border: 2px solid #000;
      box-shadow: 3px 3px 0 var(--accent-color);
    }
    .hero-title {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: #000;
      margin-bottom: 20px;
    }
    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.6;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-feature-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag-item {
      display: inline-block;
      padding: 6px 12px;
      font-size: 13px;
      font-weight: 600;
      background: #fff;
      border: 2px solid #000;
      box-shadow: 2px 2px 0 #000;
      border-radius: 4px;
    }
    .hero-board {
      background: #fff;
      border: 3px solid #000;
      border-radius: var(--radius-md);
      box-shadow: 8px 8px 0 #000;
      padding: 28px;
    }
    .board-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 2px solid #000;
      padding-bottom: 16px;
      margin-bottom: 20px;
    }
    .board-badge {
      background: var(--accent-color);
      color: #fff;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 8px;
      border-radius: 4px;
    }
    .board-metrics {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-bottom: 20px;
    }
    .metric-card {
      background: #f8f9fe;
      border: 2px solid #000;
      padding: 16px;
      border-radius: var(--radius-sm);
      box-shadow: 3px 3px 0 #000;
    }
    .metric-num {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary-color);
      line-height: 1;
      margin-bottom: 4px;
    }
    .metric-label {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
    }
    .board-callout {
      background: var(--accent-yellow);
      border: 2px solid #000;
      padding: 14px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 14px;
      box-shadow: 3px 3px 0 #000;
    }
    section {
      padding: 70px 0;
      position: relative;
    }
    .section-title-wrap {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-kicker {
      display: inline-block;
      font-size: 13px;
      font-weight: 800;
      padding: 4px 10px;
      background: #000;
      color: #fff;
      margin-bottom: 12px;
      border-radius: 4px;
    }
    .section-title {
      font-size: 34px;
      font-weight: 900;
      color: #000;
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
    }
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, min-minmax(100%, 1fr), repeat(3, 1fr));
      gap: 24px;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .card {
      background: #fff;
      border: 2px solid #000;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 4px 4px 0 #000;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: 6px 6px 0 #000;
    }
    .card-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      padding: 2px 8px;
      background: #edf2ff;
      color: var(--primary-color);
      border: 1px solid #000;
      margin-bottom: 12px;
      border-radius: 4px;
    }
    .card-title {
      font-size: 20px;
      font-weight: 800;
      color: #000;
      margin-bottom: 10px;
    }
    .card-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .model-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }
    .model-pill {
      background: #fff;
      border: 2px solid #000;
      box-shadow: 2px 2px 0 #000;
      padding: 6px 14px;
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
    }
    .model-pill:hover {
      background: var(--accent-yellow);
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #fff;
      border: 3px solid #000;
      border-radius: var(--radius-md);
      box-shadow: 6px 6px 0 #000;
    }
    .pro-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .pro-table th, .pro-table td {
      padding: 16px 20px;
      border-bottom: 2px solid #000;
    }
    .pro-table th {
      background-color: #f2f5ff;
      font-weight: 800;
      font-size: 15px;
      color: #000;
      border-bottom: 3px solid #000;
    }
    .pro-table tr:last-child td {
      border-bottom: none;
    }
    .pro-table tr:hover td {
      background-color: #fafbfe;
    }
    .rating-badge {
      background: var(--accent-yellow);
      color: #000;
      border: 2px solid #000;
      font-weight: 900;
      display: inline-block;
      padding: 2px 10px;
      border-radius: 4px;
      box-shadow: 2px 2px 0 #000;
    }
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-step {
      background: #fff;
      border: 2px solid #000;
      padding: 24px;
      border-radius: var(--radius-md);
      box-shadow: 4px 4px 0 #000;
      position: relative;
    }
    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      background: var(--accent-color);
      color: #fff;
      font-weight: 900;
      border: 2px solid #000;
      border-radius: 50%;
      margin-bottom: 14px;
      box-shadow: 2px 2px 0 #000;
    }
    .gallery-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .gallery-card {
      background: #fff;
      border: 2px solid #000;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 5px 5px 0 #000;
    }
    .gallery-img-wrapper {
      width: 100%;
      background: #eee;
      border-bottom: 2px solid #000;
    }
    .gallery-content {
      padding: 20px;
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #fff;
      border: 2px solid #000;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 4px 4px 0 #000;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px dashed #cbd2e1;
    }
    .reviewer-avatar {
      width: 44px;
      height: 44px;
      background: var(--accent-yellow);
      border: 2px solid #000;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: #000;
      box-shadow: 2px 2px 0 #000;
    }
    .reviewer-info h4 {
      font-size: 15px;
      font-weight: 800;
      color: #000;
    }
    .reviewer-info p {
      font-size: 12px;
      color: var(--text-muted);
    }
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #fff;
      border: 2px solid #000;
      border-radius: var(--radius-sm);
      box-shadow: 3px 3px 0 #000;
      overflow: hidden;
    }
    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 16px;
      font-weight: 800;
      color: #000;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background-color: #fafbfe;
      border-top: 1px solid transparent;
      padding: 0 24px;
      font-size: 14px;
      color: var(--text-muted);
    }
    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 16px 24px 20px;
      border-top-color: #e4e7f1;
    }
    .form-box {
      background: #fff;
      border: 3px solid #000;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 8px 8px 0 #000;
    }
    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full {
      grid-column: span 2;
    }
    .form-label {
      font-weight: 800;
      font-size: 14px;
      color: #000;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid #000;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-family: inherit;
      background-color: #f8f9fe;
      box-shadow: 2px 2px 0 #000;
      outline: none;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary-color);
      background-color: #fff;
    }
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }
    .qr-card {
      background: #fff;
      border: 2px solid #000;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 5px 5px 0 #000;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
    .qr-img-box {
      width: 180px;
      height: 180px;
      margin-bottom: 16px;
      border: 2px solid #000;
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: 3px 3px 0 #000;
    }
    .contact-details {
      margin-top: 20px;
      width: 100%;
      text-align: left;
    }
    .contact-item {
      display: flex;
      justify-content: space-between;
      padding: 8px 0;
      border-bottom: 1px dashed #e4e7f1;
      font-size: 14px;
    }
    .article-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .article-item {
      background: #fff;
      border: 2px solid #000;
      padding: 16px 20px;
      border-radius: var(--radius-sm);
      box-shadow: 3px 3px 0 #000;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .article-item:hover {
      background: #fdf5e6;
    }
    .site-footer {
      background-color: #0b1120;
      color: #fff;
      border-top: 4px solid #000;
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      font-size: 18px;
      font-weight: 800;
      color: var(--accent-yellow);
      margin-bottom: 16px;
    }
    .footer-col p {
      font-size: 14px;
      color: #9aa8c6;
      line-height: 1.6;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links a {
      color: #cbd5e1;
      font-size: 14px;
    }
    .footer-links a:hover {
      color: var(--accent-yellow);
    }
    .friend-links-box {
      border-top: 1px solid #23314f;
      padding-top: 24px;
      margin-bottom: 24px;
    }
    .friend-links-box h5 {
      font-size: 14px;
      color: #9aa8c6;
      margin-bottom: 12px;
    }
    .friend-links-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }
    .friend-links-flex a {
      color: #cbd5e1;
      font-size: 13px;
      background: #17233f;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid #2d3e69;
    }
    .friend-links-flex a:hover {
      background: var(--accent-color);
      color: #fff;
    }
    .copyright-bar {
      border-top: 1px solid #1c2742;
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .floating-btn {
      width: 48px;
      height: 48px;
      background: #fff;
      border: 2px solid #000;
      box-shadow: 3px 3px 0 #000;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 900;
      font-size: 14px;
    }
    .floating-btn:hover {
      background: var(--accent-yellow);
    }
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .grid-3, .grid-4, .reviews-grid, .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #fff;
        border-bottom: 3px solid #000;
        padding: 16px;
        box-shadow: 0 10px 0 rgba(0,0,0,0.1);
      }
    }
    @media (max-width: 640px) {
      .hero-title {
        font-size: 30px;
      }
      .grid-3, .grid-4, .reviews-grid, .process-timeline, .gallery-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full {
        grid-column: span 1;
      }
      .board-metrics {
        grid-template-columns: 1fr;
      }
    }