:root {
      --candy-pink: #FF6584;
      --candy-pink-light: #FFF0F4;
      --candy-purple: #7C5CFC;
      --candy-purple-light: #F4F0FF;
      --candy-blue: #2E86DE;
      --candy-blue-light: #EDF6FF;
      --candy-cyan: #00D2D3;
      --candy-cyan-light: #E6FAFA;
      --candy-yellow: #FECA57;
      --candy-yellow-light: #FFF9E6;
      --candy-green: #10AC84;
      --candy-green-light: #E8F8F4;
      --candy-orange: #FF9F43;
      --bg-main: #FAFBFF;
      --bg-card: #FFFFFF;
      --text-main: #1E272E;
      --text-muted: #576574;
      --text-light: #8395A7;
      --border-color: #EBF0F6;
      --shadow-sm: 0 4px 12px rgba(124, 92, 252, 0.06);
      --shadow-md: 0 10px 25px rgba(124, 92, 252, 0.08);
      --shadow-lg: 0 20px 40px rgba(124, 92, 252, 0.12);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --transition: all 0.28s ease;
    }

    * {
      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(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    /* Typography & Utilities */
    .section-title-wrap {
      text-align: center;
      margin-bottom: 45px;
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .badge-purple { background: var(--candy-purple-light); color: var(--candy-purple); }
    .badge-pink { background: var(--candy-pink-light); color: var(--candy-pink); }
    .badge-blue { background: var(--candy-blue-light); color: var(--candy-blue); }
    .badge-green { background: var(--candy-green-light); color: var(--candy-green); }
    .badge-orange { background: var(--candy-yellow-light); color: var(--candy-orange); }

    .section-h2 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
    }

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

    .bg-light-alt {
      background: linear-gradient(180deg, #F8FAFF 0%, #FFFFFF 100%);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: var(--radius-full);
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--candy-purple) 0%, var(--candy-pink) 100%);
      color: #FFFFFF;
      box-shadow: 0 8px 18px rgba(255, 101, 132, 0.28);
    }

    .btn-primary:hover {
      box-shadow: 0 12px 24px rgba(255, 101, 132, 0.38);
      color: #FFFFFF;
    }

    .btn-secondary {
      background: #FFFFFF;
      color: var(--candy-purple);
      border-color: #E2DBFF;
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover {
      background: var(--candy-purple-light);
      border-color: var(--candy-purple);
    }

    .btn-outline-blue {
      background: #FFFFFF;
      color: var(--candy-blue);
      border: 1.5px solid var(--candy-blue);
    }

    .btn-outline-blue:hover {
      background: var(--candy-blue);
      color: #FFFFFF;
    }

    .btn-lg {
      padding: 15px 34px;
      font-size: 1.05rem;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

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

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--candy-purple);
      letter-spacing: -0.3px;
    }

    .brand-title span {
      color: var(--candy-pink);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
    }

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

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      color: var(--candy-purple);
      background: var(--candy-purple-light);
    }

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

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      padding: 70px 0 60px 0;
      background: radial-gradient(circle at 10% 20%, #FFF3F6 0%, #F5F1FF 45%, #F0F8FF 90%);
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: "";
      position: absolute;
      top: -60px;
      right: -60px;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: rgba(254, 202, 87, 0.22);
      filter: blur(40px);
      z-index: 0;
    }

    .hero-section::after {
      content: "";
      position: absolute;
      bottom: -60px;
      left: -60px;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: rgba(0, 210, 211, 0.18);
      filter: blur(45px);
      z-index: 0;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-tag {
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
      border: 1px solid #FFE4ED;
    }

    .hero-h1 {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--text-main);
      margin: 18px 0;
      line-height: 1.25;
      letter-spacing: -0.5px;
    }

    .hero-h1 .highlight {
      background: linear-gradient(135deg, var(--candy-purple) 0%, var(--candy-pink) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-sub {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 30px;
      line-height: 1.6;
    }

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

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .metric-card {
      background: #FFFFFF;
      padding: 20px 15px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      transition: var(--transition);
      text-align: center;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #D6C8FF;
    }

    .metric-num {
      font-size: 1.85rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .metric-num.pink { color: var(--candy-pink); }
    .metric-num.purple { color: var(--candy-purple); }
    .metric-num.blue { color: var(--candy-blue); }
    .metric-num.green { color: var(--candy-green); }

    .metric-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* Model Ecosystem Marquee/Grid */
    .model-pills-wrap {
      margin-top: 35px;
      padding-top: 25px;
      border-top: 1px dashed rgba(124, 92, 252, 0.2);
    }

    .model-pills-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

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

    .model-pill {
      font-size: 0.8rem;
      font-weight: 600;
      background: #FFFFFF;
      padding: 5px 12px;
      border-radius: var(--radius-full);
      border: 1px solid #E8EEF5;
      color: var(--text-main);
      box-shadow: 0 2px 5px rgba(0,0,0,0.02);
    }

    /* Grid Layouts */
    .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: 30px;
    }

    /* Cards */
    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      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-md);
      border-color: #D2C4FF;
    }

    .feature-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 18px;
    }

    .icon-pink { background: var(--candy-pink-light); color: var(--candy-pink); }
    .icon-purple { background: var(--candy-purple-light); color: var(--candy-purple); }
    .icon-blue { background: var(--candy-blue-light); color: var(--candy-blue); }
    .icon-green { background: var(--candy-green-light); color: var(--candy-green); }
    .icon-yellow { background: var(--candy-yellow-light); color: var(--candy-orange); }
    .icon-cyan { background: var(--candy-cyan-light); color: var(--candy-cyan); }

    .feature-title {
      font-size: 1.18rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .feature-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .card-footer-tag {
      margin-top: 16px;
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }

    /* Process Flow */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .flow-card:hover {
      transform: translateY(-4px);
      border-color: var(--candy-purple);
    }

    .step-number {
      font-size: 2rem;
      font-weight: 900;
      color: var(--candy-purple-light);
      position: absolute;
      top: 15px;
      right: 18px;
      line-height: 1;
    }

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

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Rating & Comparison Section */
    .rating-banner {
      background: linear-gradient(135deg, #FFF6E9 0%, #FFF0F5 50%, #F5F0FF 100%);
      border-radius: var(--radius-lg);
      padding: 35px 30px;
      border: 1px solid #FFE3DE;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-badge-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-circle {
      width: 76px;
      height: 76px;
      background: linear-gradient(135deg, var(--candy-orange), var(--candy-pink));
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 800;
      box-shadow: 0 6px 16px rgba(255, 110, 100, 0.3);
    }

    .score-val {
      font-size: 1.6rem;
      line-height: 1;
    }

    .score-max {
      font-size: 0.72rem;
      opacity: 0.9;
    }

    .rating-info h3 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .rating-stars {
      color: #FF9F43;
      font-size: 1.1rem;
      letter-spacing: 2px;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .compare-table th {
      background: #F8FAFD;
      padding: 16px 20px;
      font-weight: 700;
      color: var(--text-main);
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-muted);
    }

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

    .compare-table tr:hover td {
      background: #FAFBFD;
    }

    .td-highlight {
      font-weight: 700;
      color: var(--candy-purple);
      background: rgba(124, 92, 252, 0.03);
    }

    .tag-check {
      color: var(--candy-green);
      font-weight: 700;
    }

    /* Cases with Images */
    .case-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #F0F4F8;
    }

    .case-img-square {
      aspect-ratio: 1 / 1;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }

    .case-info {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Banner Promotions Grid */
    .promo-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .promo-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }

    .promo-item img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* User Testimonials */
    .review-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }

    .review-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #E2DBFF;
    }

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

    .avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #FFFFFF;
      font-size: 1rem;
    }

    .user-meta h4 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-meta span {
      font-size: 0.82rem;
      color: var(--text-light);
    }

    .review-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Token Price & Match Forms */
    .form-container-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 35px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

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

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

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1.5px solid var(--border-color);
      font-size: 0.92rem;
      font-family: inherit;
      color: var(--text-main);
      background: #FAFCFF;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--candy-purple);
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(124, 92, 252, 0.12);
    }

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

    /* FAQ Accordion */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #FFFFFF;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: #D6C8FF;
    }

    .faq-question {
      padding: 18px 22px;
      font-weight: 700;
      font-size: 1rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--candy-purple);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      padding: 0 22px 18px 22px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      display: none;
    }

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

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

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

    .article-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 22px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-card:hover {
      transform: translateY(-4px);
      border-color: var(--candy-blue);
      box-shadow: var(--shadow-md);
    }

    .article-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .article-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 14px;
    }

    .article-link {
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--candy-blue);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* Agent / Partner Section */
    .agent-card {
      background: linear-gradient(135deg, #FFF9EB 0%, #FFFFFF 60%, #F5F3FF 100%);
      border: 1.5px solid #FFE6AF;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    /* Contact Block */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: center;
    }

    .qr-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: inline-block;
    }

    .qr-card img {
      width: 170px;
      height: 170px;
      object-fit: contain;
      margin-bottom: 10px;
      border-radius: var(--radius-sm);
    }

    /* Footer */
    .site-footer {
      background: #181C28;
      color: #D1D8E0;
      padding: 50px 0 25px 0;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      padding-bottom: 35px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand h4 {
      font-size: 1.3rem;
      color: #FFFFFF;
      margin-bottom: 12px;
      font-weight: 800;
    }

    .footer-brand p {
      color: #8E9BAE;
      font-size: 0.88rem;
      line-height: 1.6;
    }

    .footer-col h5 {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-list a {
      color: #8E9BAE;
    }

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

    .friend-links-box {
      margin-top: 25px;
      padding: 18px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .friend-links-box span {
      color: #8E9BAE;
      font-weight: 600;
      margin-right: 12px;
    }

    .friend-links-box a {
      color: #A5B1C2;
      margin-right: 16px;
      display: inline-block;
      font-size: 0.85rem;
    }

    .friend-links-box a:hover {
      color: #FFFFFF;
    }

    .footer-bottom {
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      font-size: 0.82rem;
      color: #718093;
    }

    /* Floating Customer Service Button */
    .float-service {
      position: fixed;
      right: 20px;
      bottom: 25px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #FFFFFF;
      box-shadow: 0 6px 18px rgba(0,0,0,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--candy-purple);
      font-weight: 700;
      font-size: 1.1rem;
      cursor: pointer;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .float-btn:hover {
      transform: scale(1.08);
      background: var(--candy-purple);
      color: #FFFFFF;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .grid-4, .flow-steps, .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .articles-grid, .promo-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
    }

    @media (max-width: 768px) {
      .mobile-toggle {
        display: block;
      }
      .nav-wrap {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        box-shadow: var(--shadow-md);
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
      }
      .nav-wrap.active {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px solid #F1F4F8;
      }
      .grid-3, .grid-4, .grid-2, .articles-grid, .promo-gallery, .hero-metrics, .flow-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .hero-h1 {
        font-size: 1.8rem;
      }
      .section-h2 {
        font-size: 1.65rem;
      }
    }