/* Reset & Base Variables */
    :root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --accent-coral: #ff4d4f;
      --accent-yellow: #f59e0b;
      --accent-purple: #7c3aed;
      --accent-cyan: #06b6d4;
      --bg-main: #f8fafc;
      --bg-white: #ffffff;
      --bg-card: #ffffff;
      --text-dark: #0f172a;
      --text-muted: #475569;
      --border-light: #e2e8f0;
      --border-strong: #cbd5e1;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 20px 35px -10px rgba(37, 99, 235, 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", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-dark);
      line-height: 1.6;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-dark);
      overflow-x: hidden;
    }

    /* Container Specification */
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

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

    /* Header & Navigation */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid #e0e7ff;
      box-shadow: var(--shadow-sm);
    }

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

    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .logo-box img {
      max-height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* Strict requirement */
      list-style: none;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-muted);
      border-radius: 6px;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: #eff6ff;
    }

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

    .btn-header-cta {
      background: linear-gradient(135deg, #ff4d4f 0%, #ff7875 100%);
      color: #ffffff !important;
      padding: 9px 20px;
      border-radius: 50px;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 0 4px 14px rgba(255, 77, 79, 0.35);
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }

    .btn-header-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 77, 79, 0.45);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    /* Hero Section - STRICT NO IMAGES */
    .hero-section {
      background: linear-gradient(135deg, #ffffff 0%, #eff6ff 50%, #fdf2f8 100%);
      padding: 70px 0 60px;
      border-bottom: 1px solid var(--border-light);
      position: relative;
    }

    .hero-wrapper {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #eff6ff;
      border: 1px solid #bfdbfe;
      padding: 6px 18px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 24px;
      text-transform: uppercase;
    }

    .hero-badge span.dot {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 8px #10b981;
    }

    .hero-title {
      font-size: 2.5rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-dark);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight-blue {
      color: var(--primary);
    }

    .hero-title .highlight-coral {
      color: var(--accent-coral);
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-btn-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-main-official {
      background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
      color: #ffffff !important;
      font-size: 1.1rem;
      font-weight: 800;
      padding: 16px 36px;
      border-radius: 50px;
      box-shadow: 0 10px 25px rgba(37, 99, 235, 0.35);
      border: 2px solid #60a5fa;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .btn-main-official:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 15px 30px rgba(37, 99, 235, 0.45);
      background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    }

    .btn-sub-action {
      background: #ffffff;
      color: var(--text-dark) !important;
      font-size: 1.1rem;
      font-weight: 700;
      padding: 16px 32px;
      border-radius: 50px;
      border: 2px solid var(--border-strong);
      box-shadow: var(--shadow-sm);
    }

    .btn-sub-action:hover {
      border-color: var(--primary);
      color: var(--primary) !important;
      background: #f8fafc;
      transform: translateY(-2px);
    }

    /* Metric Bar in Hero */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 10px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid #e0e7ff;
      border-radius: var(--radius-md);
      padding: 20px 16px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #93c5fd;
    }

    .metric-number {
      font-size: 1.75rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .metric-card:nth-child(2) .metric-number { color: var(--accent-coral); }
    .metric-card:nth-child(3) .metric-number { color: var(--accent-purple); }
    .metric-card:nth-child(4) .metric-number { color: var(--accent-yellow); }

    .metric-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* Common Section Styles */
    section {
      padding: 70px 0;
      border-bottom: 1px solid var(--border-light);
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      padding: 5px 14px;
      border-radius: 30px;
      font-size: 0.82rem;
      font-weight: 800;
      text-transform: uppercase;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .tag-blue { background: #dbeafe; color: #1e40af; }
    .tag-purple { background: #f3e8ff; color: #6b21a8; }
    .tag-coral { background: #ffe4e6; color: #be123c; }
    .tag-yellow { background: #fef3c7; color: #92400e; }
    .tag-green { background: #d1fae5; color: #065f46; }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-dark);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

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

    /* Model Matrix Badges */
    .model-badge-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-top: 25px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 700;
      color: #334155;
      box-shadow: 0 1px 3px rgba(0,0,0,0.04);
      transition: all 0.2s;
    }

    .model-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: scale(1.05);
    }

    /* Grid Layouts */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 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;
    }

    /* Cards */
    .feature-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 2px solid #edf2f7;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: #bfdbfe;
    }

    .card-icon-title {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .icon-badge {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      color: #ffffff;
      flex-shrink: 0;
    }

    .bg-gradient-1 { background: linear-gradient(135deg, #2563eb, #3b82f6); }
    .bg-gradient-2 { background: linear-gradient(135deg, #ff4d4f, #f97316); }
    .bg-gradient-3 { background: linear-gradient(135deg, #7c3aed, #a855f7); }
    .bg-gradient-4 { background: linear-gradient(135deg, #059669, #10b981); }
    .bg-gradient-5 { background: linear-gradient(135deg, #0284c7, #06b6d4); }
    .bg-gradient-6 { background: linear-gradient(135deg, #d97706, #f59e0b); }

    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    .card-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .pill-tag {
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: 20px;
      background: #f1f5f9;
      color: #475569;
      font-weight: 600;
    }

    /* Media Banner & Showcase Section */
    .media-showcase-section {
      background: #ffffff;
    }

    .banner-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 30px;
    }

    .banner-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s;
    }

    .banner-card:hover {
      transform: scale(1.02);
      box-shadow: var(--shadow-md);
    }

    .banner-card img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
    }

    .material-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 20px;
      align-items: stretch;
    }

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

    .material-box img {
      width: 100%;
      height: 240px;
      object-fit: cover;
      display: block;
    }

    .material-info {
      padding: 16px;
      background: #ffffff;
    }

    .material-info h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-dark);
    }

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

    /* Comparison Table & Rating */
    .comparison-section {
      background: #f8fafc;
    }

    .rating-banner {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      padding: 30px;
      border-radius: var(--radius-lg);
      margin-bottom: 35px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-md);
      border: 2px solid #3b82f6;
    }

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

    .rating-number {
      font-size: 3.5rem;
      font-weight: 900;
      color: #facc15;
      line-height: 1;
    }

    .rating-details h3 {
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 6px;
      color: #ffffff;
    }

    .stars {
      color: #facc15;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

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

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

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

    .compare-table th {
      background: #f1f5f9;
      font-weight: 800;
      color: var(--text-dark);
    }

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

    .compare-table td.highlight-col {
      background: #eff6ff;
      font-weight: 700;
      color: var(--primary);
    }

    .check-icon {
      color: #10b981;
      font-weight: 800;
      margin-right: 6px;
    }

    .cross-icon {
      color: #94a3b8;
      margin-right: 6px;
    }

    /* Process Workflow */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      padding: 24px 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-num {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), #60a5fa);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      margin: 0 auto 14px;
      box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
    }

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

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

    /* Reviews Section */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.95rem;
      color: #334155;
      line-height: 1.65;
      margin-bottom: 18px;
      position: relative;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #3b82f6, #8b5cf6);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
    }

    .user-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-dark);
    }

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

    /* Token Price & Agency Box */
    .token-price-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 2px solid #bfdbfe;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
    }

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

    .agency-card {
      background: linear-gradient(180deg, #ffffff 0%, #f0fdf4 100%);
      border: 2px solid #86efac;
      padding: 28px 22px;
      border-radius: var(--radius-md);
      text-align: center;
    }

    .agency-price {
      font-size: 2rem;
      font-weight: 900;
      color: #15803d;
      margin: 12px 0;
    }

    /* FAQ Accordion */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

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

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

    .faq-toggle-icon {
      font-size: 1.25rem;
      font-weight: 400;
      transition: transform 0.25s;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out, padding 0.3s ease;
      background: #fafafa;
      padding: 0 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      padding: 16px 24px 20px;
      max-height: 350px;
    }

    /* Contact & Form Section */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: start;
    }

    .contact-info-panel {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

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

    .info-label {
      font-weight: 700;
      color: var(--text-dark);
      min-width: 90px;
    }

    .qr-container {
      margin-top: 24px;
      padding: 20px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      display: inline-block;
      text-align: center;
      border: 1px solid var(--border-light);
    }

    .qr-container img {
      max-width: 150px;
      height: auto;
      border-radius: 8px;
      display: block;
      margin: 0 auto 10px;
    }

    .form-panel {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius-md);
      border: 2px solid #bfdbfe;
      box-shadow: var(--shadow-md);
    }

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

    .form-group label {
      display: block;
      font-weight: 700;
      font-size: 0.92rem;
      color: var(--text-dark);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-strong);
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text-dark);
      background: #ffffff;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    .btn-submit {
      width: 100%;
      background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
      color: #ffffff;
      border: none;
      padding: 14px;
      border-radius: 8px;
      font-size: 1.05rem;
      font-weight: 800;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
      transition: all 0.25s;
    }

    .btn-submit:hover {
      background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
    }

    /* Articles & Links */
    .article-link-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 15px;
    }

    .article-item {
      background: #ffffff;
      padding: 10px 16px;
      border-radius: 8px;
      border: 1px solid var(--border-light);
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
      transition: all 0.2s;
    }

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

    .friend-links-box {
      margin-top: 30px;
      padding-top: 20px;
      border-top: 1px solid var(--border-light);
    }

    .friend-links-box a {
      display: inline-block;
      margin-right: 16px;
      margin-bottom: 8px;
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .friend-links-box a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    /* Footer */
    footer.site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 50px 0 30px;
      border-top: 3px solid var(--primary);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

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

    .footer-col ul li a:hover {
      color: #ffffff;
      padding-left: 4px;
    }

    .footer-bottom {
      text-align: center;
      padding-top: 24px;
      border-top: 1px solid #334155;
      font-size: 0.88rem;
      color: #64748b;
    }

    /* Floating CTA */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      color: var(--primary);
      border: 1px solid var(--border-light);
      cursor: pointer;
      transition: all 0.25s;
    }

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

    /* Responsive Design */
    @media (max-width: 1024px) {
      .hero-metrics, .grid-4, .banner-grid, .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .review-grid, .agency-card-group {
        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: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 2px solid var(--primary);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-metrics, .grid-2, .grid-3, .grid-4, .banner-grid, .material-grid, .process-steps, .review-grid, .agency-card-group, .contact-wrapper, .footer-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        text-align: center;
        gap: 16px;
      }
    }