:root {
      --primary: #2563eb;
      --primary-rgb: 37, 99, 235;
      --accent-cyan: #06b6d4;
      --accent-purple: #7c3aed;
      --accent-amber: #f59e0b;
      --accent-rose: #f43f5e;
      --accent-emerald: #10b981;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 30px -5px rgba(15, 23, 42, 0.07);
      --shadow-lg: 0 20px 40px -10px rgba(37, 99, 235, 0.12);
      --container-width: 1200px;
    }

    * {
      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, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      background-image: 
        radial-gradient(at 0% 0%, rgba(6, 182, 212, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(124, 58, 237, 0.08) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(244, 63, 94, 0.04) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.06) 0px, transparent 50%);
      background-attachment: fixed;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

    .brand-title-badge {
      font-size: 0.82rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 6px;
      background: linear-gradient(135deg, #e0f2fe, #f3e8ff);
      color: var(--primary);
      border: 1px solid #bfdbfe;
    }

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

    .nav-links a {
      font-size: 0.94rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: 6px;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background: rgba(37, 99, 235, 0.06);
    }

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

    .btn-gradient {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #ffffff !important;
      background: linear-gradient(135deg, #0284c7 0%, #2563eb 50%, #7c3aed 100%);
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
      border: none;
      cursor: pointer;
    }

    .btn-gradient:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.45);
      filter: brightness(1.05);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--primary);
      background: #ffffff;
      border: 1.5px solid #93c5fd;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    .btn-outline:hover {
      background: #eff6ff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .mobile-menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-color);
      padding: 8px 12px;
      border-radius: 6px;
      cursor: pointer;
      font-size: 1.1rem;
      color: var(--text-main);
    }

    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      overflow: hidden;
    }

    .hero-content {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 50px;
      background: linear-gradient(90deg, #eff6ff, #fdf2f8, #f0fdf4);
      border: 1px solid #c7d2fe;
      font-size: 0.88rem;
      color: #4338ca;
      font-weight: 600;
      margin-bottom: 22px;
      box-shadow: var(--shadow-sm);
    }

    .hero-tag .dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }

    .hero-title-gradient {
      background: linear-gradient(135deg, #0284c7 0%, #4f46e5 50%, #db2777 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-lead {
      font-size: 1.18rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-box {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 45px;
    }

    .hero-cta-box .btn-gradient {
      padding: 13px 34px;
      font-size: 1.08rem;
    }

    .hero-features-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      padding: 22px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(226, 232, 240, 0.9);
      box-shadow: var(--shadow-md);
    }

    .feature-strip-item {
      display: flex;
      align-items: center;
      gap: 14px;
      text-align: left;
      padding: 8px 12px;
      border-right: 1px dashed #e2e8f0;
    }

    .feature-strip-item:last-child {
      border-right: none;
    }

    .feature-icon-badge {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
      flex-shrink: 0;
    }

    .badge-blue { background: #dbeafe; color: #1d4ed8; }
    .badge-purple { background: #ede9fe; color: #6d28d9; }
    .badge-amber { background: #fef3c7; color: #b45309; }
    .badge-green { background: #d1fae5; color: #047857; }

    .feature-strip-text h4 {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .feature-strip-text p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .model-pills-wrap {
      margin-top: 30px;
      padding: 16px;
      background: rgba(255, 255, 255, 0.65);
      border-radius: var(--radius-sm);
      border: 1px solid #e2e8f0;
      text-align: center;
    }

    .model-pills-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: block;
    }

    .pills-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-pill {
      font-size: 0.78rem;
      font-weight: 600;
      padding: 4px 10px;
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 20px;
      color: #334155;
    }

    .model-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #eff6ff;
    }

    .section-block {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 46px;
    }

    .section-subhead {
      font-size: 0.88rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--primary);
      display: inline-block;
      margin-bottom: 8px;
      padding: 3px 12px;
      background: #eff6ff;
      border-radius: 20px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.35;
    }

    .section-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .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-colorful {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .card-colorful:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .card-border-top-blue { border-top: 4px solid var(--primary); }
    .card-border-top-purple { border-top: 4px solid var(--accent-purple); }
    .card-border-top-amber { border-top: 4px solid var(--accent-amber); }
    .card-border-top-rose { border-top: 4px solid var(--accent-rose); }
    .card-border-top-emerald { border-top: 4px solid var(--accent-emerald); }
    .card-border-top-cyan { border-top: 4px solid var(--accent-cyan); }

    .card-icon {
      width: 46px;
      height: 46px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 1.25rem;
      font-weight: bold;
    }

    .card-colorful h3 {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .card-colorful p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }

    .tag-item {
      font-size: 0.74rem;
      padding: 3px 8px;
      background: #f1f5f9;
      color: #475569;
      border-radius: 4px;
    }

    .about-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--text-main);
    }

    .about-text p {
      font-size: 0.98rem;
      color: var(--text-muted);
      margin-bottom: 14px;
    }

    .about-points {
      margin-top: 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .about-point-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .about-point-item span {
      color: var(--accent-emerald);
      font-weight: 900;
    }

    .media-card-wrap {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #f1f5f9;
      box-shadow: var(--shadow-sm);
    }

    .media-card-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .media-card-wrap:hover img {
      transform: scale(1.03);
    }

    .media-card-caption {
      padding: 14px 18px;
      background: #ffffff;
      border-top: 1px solid var(--border-color);
    }

    .media-card-caption h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .media-card-caption p {
      font-size: 0.84rem;
      color: var(--text-muted);
    }

    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      padding: 24px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent-purple));
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }

    .step-card h4 {
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .evaluation-hero {
      background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 38px 40px;
      margin-bottom: 30px;
      box-shadow: var(--shadow-lg);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .evaluation-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-circle {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      background: linear-gradient(135deg, #f59e0b, #ef4444);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-size: 2.1rem;
      font-weight: 900;
      color: #ffffff;
      box-shadow: 0 0 25px rgba(245, 158, 11, 0.4);
    }

    .score-circle span {
      font-size: 0.72rem;
      margin-top: -4px;
    }

    .evaluation-meta h3 {
      font-size: 1.55rem;
      font-weight: 800;
      margin-bottom: 6px;
      color: #ffffff;
    }

    .rating-stars {
      color: #fbbf24;
      font-size: 1.2rem;
      letter-spacing: 2px;
      margin-bottom: 6px;
    }

    .table-container {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

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

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.93rem;
    }

    .comparison-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .highlight-col {
      background: rgba(239, 246, 255, 0.6);
      font-weight: 600;
      color: var(--primary);
    }

    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pricing-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }

    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }

    .pricing-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, #2563eb, #7c3aed);
      color: #ffffff;
      font-size: 0.76rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 20px;
    }

    .pricing-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin: 16px 0;
    }

    .pricing-price span {
      font-size: 0.9rem;
      font-weight: normal;
      color: var(--text-muted);
    }

    .pricing-list {
      text-align: left;
      margin: 20px 0 26px;
    }

    .pricing-list li {
      font-size: 0.9rem;
      color: var(--text-muted);
      padding: 6px 0;
      border-bottom: 1px dashed #f1f5f9;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pricing-list li::before {
      content: "✓";
      color: var(--accent-emerald);
      font-weight: 800;
    }

    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .testimonial-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .testimonial-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--text-main);
      font-size: 1rem;
    }

    .user-info h5 {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .testimonial-quote {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      font-style: italic;
      flex-grow: 1;
    }

    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

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

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      background: #ffffff;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .faq-question:hover {
      background: #f8fafc;
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 22px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid #f1f5f9;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .contact-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 34px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 40px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      font-size: 0.94rem;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #f8fafc;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    .contact-info-panel {
      background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
      padding: 30px;
      border-radius: var(--radius-md);
      border: 1px solid #dbeafe;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-items {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 24px;
    }

    .info-row {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.94rem;
      color: var(--text-main);
    }

    .info-row strong {
      min-width: 80px;
      color: var(--text-muted);
    }

    .qr-box {
      text-align: center;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      max-width: 220px;
      margin: 0 auto;
    }

    .qr-box img {
      width: 150px;
      height: 150px;
      object-fit: cover;
      display: block;
      margin: 0 auto 8px;
    }

    .qr-box span {
      font-size: 0.82rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-card {
      background: #ffffff;
      border-radius: var(--radius-sm);
      padding: 20px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-card h4 {
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }

    .article-card a {
      color: var(--primary);
      font-size: 0.88rem;
      font-weight: 600;
      margin-top: 12px;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-card a:hover {
      text-decoration: underline;
    }

    .links-section {
      background: #ffffff;
      padding: 26px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .links-inner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
    }

    .links-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .links-group a {
      font-size: 0.86rem;
      color: var(--text-muted);
      background: #f1f5f9;
      padding: 4px 10px;
      border-radius: 4px;
    }

    .links-group a:hover {
      color: var(--primary);
      background: #e0f2fe;
    }

    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 45px 0 30px;
      border-top: 1px solid #1e293b;
    }

    .footer-content {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 30px;
    }

    .footer-desc {
      font-size: 0.88rem;
      line-height: 1.7;
      color: #94a3b8;
      max-width: 440px;
      margin-top: 12px;
    }

    .footer-col h5 {
      font-size: 0.98rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
    }

    .footer-links-list li {
      margin-bottom: 8px;
    }

    .footer-links-list a {
      font-size: 0.86rem;
      color: #94a3b8;
    }

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

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 22px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: #64748b;
    }

    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary);
      font-size: 1.1rem;
      transition: all 0.25s;
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary);
      color: #ffffff;
    }

    @media (max-width: 1024px) {
      .grid-4, .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .testimonials-grid, .pricing-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-features-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .feature-strip-item:nth-child(2) {
        border-right: none;
      }
      .footer-content {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 18px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 2rem;
      }
      .grid-2, .grid-3, .grid-4, .about-box, .contact-layout, .testimonials-grid, .pricing-grid, .articles-grid, .process-timeline {
        grid-template-columns: 1fr;
      }
      .hero-features-strip {
        grid-template-columns: 1fr;
      }
      .feature-strip-item {
        border-right: none;
        border-bottom: 1px dashed #e2e8f0;
        padding-bottom: 12px;
      }
      .footer-content {
        grid-template-columns: 1fr;
      }
      .evaluation-hero {
        flex-direction: column;
        align-items: flex-start;
      }
      .contact-layout {
        padding: 20px;
      }
    }