:root {
      --primary: #FF5500;
      --primary-hover: #E04B00;
      --primary-light: #FFF2EB;
      --primary-gradient: linear-gradient(135deg, #FF6A00 0%, #EE3900 100%);
      --accent: #FF8800;
      --dark: #1F2429;
      --gray-deep: #4A5568;
      --gray-light: #718096;
      --bg-light: #FAFAFB;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --border-active: #FFD2BC;
      --shadow-sm: 0 2px 8px rgba(255, 85, 0, 0.06);
      --shadow-md: 0 8px 24px rgba(255, 85, 0, 0.08);
      --shadow-lg: 0 16px 36px rgba(255, 85, 0, 0.12);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --max-width: 1200px;
      --transition: all 0.28s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--dark);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
    }

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

    ul, ol {
      list-style: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
    }

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

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

    .brand-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 19px;
      font-weight: 800;
      color: var(--dark);
      letter-spacing: -0.5px;
    }

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

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

    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--gray-deep);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #fff;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.28);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #EE3900 0%, #D83300 100%);
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.35);
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: #fff;
    }

    .btn-outline:hover {
      background: var(--primary-light);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      padding: 8px;
      cursor: pointer;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--dark);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 首屏 HERO - 严格无图，纯CSS与排版打造炽艳科技感 */
    .hero-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #FFF8F4 100%);
      border-bottom: 1px solid rgba(255, 106, 0, 0.1);
      padding: 72px 0 64px;
      position: relative;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: var(--primary-light);
      border: 1px solid var(--border-active);
      border-radius: 30px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-badge::before {
      content: "";
      display: block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
    }

    .hero-title {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 900;
      color: var(--dark);
      margin-bottom: 18px;
      letter-spacing: -1px;
    }

    .hero-title em {
      font-style: normal;
      color: var(--primary);
      position: relative;
    }

    .hero-desc {
      font-size: 16px;
      color: var(--gray-deep);
      line-height: 1.7;
      margin-bottom: 30px;
    }

    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
      align-items: center;
    }

    .hero-cta .btn-primary {
      padding: 13px 30px;
      font-size: 16px;
    }

    .hero-perks {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      padding-top: 18px;
      border-top: 1px dashed #E2E8F0;
      font-size: 13px;
      color: var(--gray-deep);
    }

    .hero-perks li {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .hero-perks li svg {
      width: 16px;
      height: 16px;
      fill: var(--primary);
    }

    /* 首屏纯CSS科技交互视窗 */
    .hero-console {
      background: #FFFFFF;
      border: 1px solid #FFE3D4;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 16px 40px rgba(255, 85, 0, 0.08);
      position: relative;
    }

    .console-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #F1F5F9;
      padding-bottom: 12px;
      margin-bottom: 18px;
    }

    .console-dots {
      display: flex;
      gap: 6px;
    }

    .console-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #E2E8F0;
    }

    .console-dots span:nth-child(1) { background: #FF5A5F; }
    .console-dots span:nth-child(2) { background: #FFAA00; }
    .console-dots span:nth-child(3) { background: #00D084; }

    .console-tag {
      font-size: 11px;
      font-family: monospace;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }

    .model-chip-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin-bottom: 18px;
    }

    .model-chip {
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      border-radius: var(--radius-sm);
      padding: 8px 6px;
      text-align: center;
      font-size: 12px;
      font-weight: 600;
      color: var(--dark);
      transition: var(--transition);
    }

    .model-chip.highlight {
      background: var(--primary-light);
      border-color: #FFCDB2;
      color: var(--primary);
    }

    .console-stat-box {
      background: linear-gradient(135deg, #FFF7F2 0%, #FFFFFF 100%);
      border: 1px solid #FFE4D6;
      border-radius: var(--radius-md);
      padding: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .stat-metric {
      font-size: 24px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 12px;
      color: var(--gray-deep);
    }

    /* 通用Section布局 */
    .section-block {
      padding: 64px 0;
      border-bottom: 1px solid #F1F5F9;
    }

    .section-block.bg-warm {
      background: #FFFDFB;
    }

    .section-block.bg-highlight {
      background: linear-gradient(180deg, #FFFFFF 0%, #FFF9F5 100%);
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 44px;
    }

    .section-kicker {
      text-transform: uppercase;
      font-size: 12px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: 1.5px;
      margin-bottom: 8px;
      display: block;
    }

    .section-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--gray-deep);
      line-height: 1.6;
    }

    /* 卡片通用网格 */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .card-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card:hover {
      border-color: #FFC4A8;
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .feature-icon-box {
      width: 46px;
      height: 46px;
      border-radius: var(--radius-md);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      font-size: 20px;
      font-weight: bold;
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--dark);
    }

    .feature-card p {
      font-size: 14px;
      color: var(--gray-deep);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .feature-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .tag-pill {
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      background: #F1F5F9;
      color: var(--gray-deep);
      font-weight: 500;
    }

    /* 平台介绍大模块 */
    .intro-box {
      background: #FFFFFF;
      border: 1px solid var(--border-active);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

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

    .point-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--dark);
    }

    .point-item strong {
      display: block;
      color: var(--primary);
      font-size: 14px;
    }

    /* 场景分类网格 */
    .scenario-item {
      background: #FFFFFF;
      border: 1px solid #EDF2F7;
      border-radius: var(--radius-md);
      padding: 18px;
      transition: var(--transition);
    }

    .scenario-item:hover {
      border-color: #FFB38A;
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.08);
      transform: translateY(-2px);
    }

    .scenario-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 8px;
    }

    .scenario-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark);
    }

    .scenario-desc {
      font-size: 13px;
      color: var(--gray-light);
      line-height: 1.5;
    }

    /* 案例中心配图卡片 */
    .media-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .media-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .media-thumb-wrap {
      width: 100%;
      background: #F1F5F9;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .media-thumb-wrap.square {
      aspect-ratio: 1 / 1;
    }

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

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

    .media-body {
      padding: 18px;
    }

    .media-body h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--dark);
    }

    .media-body p {
      font-size: 13px;
      color: var(--gray-deep);
      line-height: 1.5;
    }

    /* 对比评测表格与卡片 */
    .review-score-banner {
      background: linear-gradient(135deg, #FF6A00 0%, #EE3900 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 28px 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 28px;
      box-shadow: 0 12px 30px rgba(255, 85, 0, 0.22);
    }

    .score-left h3 {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .score-stars {
      color: #FFEB3B;
      letter-spacing: 3px;
      font-size: 18px;
    }

    .score-big {
      text-align: right;
    }

    .score-number {
      font-size: 48px;
      font-weight: 900;
      line-height: 1;
    }

    .score-total {
      font-size: 14px;
      opacity: 0.85;
    }

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

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

    .comp-table th, .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #F1F5F9;
      font-size: 14px;
    }

    .comp-table th {
      background: #FFF9F5;
      font-weight: 700;
      color: var(--dark);
    }

    .comp-table tr.highlight-row {
      background: #FFFDFB;
      font-weight: 600;
    }

    .comp-badge {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
      background: var(--primary-light);
      color: var(--primary);
    }

    /* 流程步骤 */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
    }

    .step-num {
      font-size: 32px;
      font-weight: 900;
      color: #FFE2D4;
      line-height: 1;
      margin-bottom: 10px;
    }

    .step-item h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .step-item p {
      font-size: 13px;
      color: var(--gray-deep);
      line-height: 1.5;
    }

    /* 评价卡片 */
    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid #EDF2F7;
      border-radius: var(--radius-md);
      padding: 22px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

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

    .user-avatar-text {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 15px;
    }

    .user-meta strong {
      display: block;
      font-size: 14px;
      color: var(--dark);
    }

    .user-meta span {
      font-size: 12px;
      color: var(--gray-light);
    }

    .testimonial-content {
      font-size: 13.5px;
      color: var(--gray-deep);
      line-height: 1.6;
    }

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

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

    .faq-item.active {
      border-color: #FFC0A0;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.06);
    }

    .faq-question {
      padding: 18px 22px;
      font-size: 15px;
      font-weight: 700;
      color: var(--dark);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

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

    .faq-toggle-icon {
      font-size: 18px;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background: #FFFCFA;
    }

    .faq-item.active .faq-answer {
      max-height: 500px;
      transition: max-height 0.35s ease-in-out;
    }

    .faq-answer p {
      padding: 16px 22px 20px;
      font-size: 14px;
      color: var(--gray-deep);
      line-height: 1.65;
      border-top: 1px dashed #FFE8DC;
    }

    /* 需求表单与联系 */
    .contact-wrapper {
      background: #FFFFFF;
      border: 1px solid var(--border-active);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
    }

    .form-panel {
      padding: 40px;
    }

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

    .form-group label {
      display: block;
      font-size: 13.5px;
      font-weight: 600;
      color: var(--dark);
      margin-bottom: 6px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 11px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--dark);
      outline: none;
      transition: var(--transition);
      background: #FAFAFB;
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      background: #FFF;
      box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.12);
    }

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

    .info-panel {
      background: linear-gradient(180deg, #FFF9F5 0%, #FFF2EB 100%);
      padding: 40px;
      border-left: 1px solid #FFE7DA;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .info-list {
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .info-entry {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 14px;
    }

    .info-entry strong {
      color: var(--dark);
      white-space: nowrap;
    }

    .qr-box {
      margin-top: 22px;
      padding: 16px;
      background: #FFFFFF;
      border: 1px solid #FFDEC9;
      border-radius: var(--radius-md);
      display: inline-flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
    }

    .qr-box img {
      width: 130px;
      height: 130px;
      object-fit: contain;
    }

    .qr-box span {
      font-size: 12px;
      color: var(--gray-deep);
      font-weight: 600;
    }

    /* 文章推荐模块 */
    .article-links-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 24px;
    }

    .article-pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }

    .article-pill-list a {
      font-size: 13px;
      color: var(--dark);
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      padding: 7px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .article-pill-list a:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #191C20;
      color: #94A3B8;
      padding: 56px 0 28px;
      font-size: 13.5px;
      border-top: 3px solid var(--primary);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 36px;
    }

    .footer-col h5 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-links-group {
      display: flex;
      flex-direction: column;
      gap: 9px;
    }

    .footer-links-group a {
      color: #94A3B8;
    }

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

    .friend-links-bar {
      border-top: 1px solid #2D3748;
      padding-top: 20px;
      margin-bottom: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }

    .friend-links-bar span {
      color: #E2E8F0;
      font-weight: 600;
    }

    .friend-links-bar a {
      color: #94A3B8;
      margin-right: 12px;
    }

    .friend-links-bar a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid #282E37;
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12.5px;
    }

    .footer-bottom a {
      color: #CBD5E1;
    }

    /* 浮动侧边栏客服 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .widget-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--dark);
      transition: var(--transition);
      position: relative;
    }

    .widget-btn.btn-kefu {
      background: var(--primary-gradient);
      color: #FFFFFF;
      border: none;
    }

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

    .widget-qr-hover {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #FFFFFF;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid #E2E8F0;
      display: none;
      flex-direction: column;
      align-items: center;
      width: 140px;
    }

    .widget-qr-hover img {
      width: 116px;
      height: 116px;
      object-fit: contain;
    }

    .widget-qr-hover span {
      font-size: 11px;
      color: var(--dark);
      margin-top: 4px;
      font-weight: 600;
    }

    .widget-btn.btn-kefu:hover .widget-qr-hover {
      display: flex;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .card-grid-3, .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-title {
        font-size: 32px;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 12px;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .card-grid-2, .card-grid-3, .card-grid-4 {
        grid-template-columns: 1fr;
      }
      .intro-grid {
        grid-template-columns: 1fr;
      }
      .intro-points {
        grid-template-columns: 1fr;
      }
      .step-grid {
        grid-template-columns: 1fr;
      }
      .review-score-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }
      .score-big {
        text-align: left;
      }
      .form-panel, .info-panel {
        padding: 24px 18px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 26px;
      }
    }