:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --secondary: #06b6d4;
      --accent: #f43f5e;
      --gradient-main: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
      --gradient-sub: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
      --gradient-light: linear-gradient(135deg, #e0e7ff 0%, #cffafe 50%, #fdf2f8 100%);
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-sub: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #818cf8;
      --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
      --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
      --shadow-xl: 0 20px 30px -10px rgba(79, 70, 229, 0.15);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-full: 9999px;
    }

    * {
      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-page);
      background-image: 
        radial-gradient(at 0% 0%, rgba(79, 70, 229, 0.06) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.06) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      transition: all 0.3s ease;
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-area {
      display: flex;
      align-items: center;
      gap: 16px;
    }

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

    .ai-page-home-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      text-decoration: none;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      background: #f1f5f9;
      transition: all 0.2s;
    }

    .ai-page-home-link:hover {
      background: #e2e8f0;
      color: var(--primary);
    }

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

    .nav-links a {
      text-decoration: none;
      color: var(--text-sub);
      font-weight: 500;
      font-size: 0.92rem;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }

    .nav-links a:hover {
      color: var(--primary);
      background: rgba(79, 70, 229, 0.05);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--gradient-main);
      color: #ffffff !important;
      font-weight: 600;
      padding: 10px 22px !important;
      border-radius: var(--radius-full) !important;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
      transition: transform 0.2s, box-shadow 0.2s !important;
      margin-left: 8px;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1.2rem;
      color: var(--text-main);
    }

    /* 区域通用样式 */
    .section-wrap {
      padding: 80px 0;
    }

    .section-alt {
      background: rgba(241, 245, 249, 0.6);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.1);
      padding: 4px 16px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* 首屏 Hero (无图片，纯科技渐变与卡片交互) */
    .hero-section {
      padding: 90px 0 70px;
      position: relative;
      overflow: hidden;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid rgba(79, 70, 229, 0.2);
      padding: 6px 18px;
      border-radius: var(--radius-full);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-badge span {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.3); opacity: 0.6; }
    }

    .hero-title {
      font-size: 2.6rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: var(--gradient-main);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-sub);
      line-height: 1.8;
      max-width: 780px;
      margin: 0 auto 36px;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .btn-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--gradient-main);
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      padding: 14px 34px;
      border-radius: var(--radius-full);
      text-decoration: none;
      box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
      transition: all 0.25s ease;
      border: none;
      cursor: pointer;
    }

    .btn-main:hover {
      transform: translateY(-3px);
      box-shadow: 0 15px 30px rgba(79, 70, 229, 0.45);
      color: #ffffff;
    }

    .btn-sub {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: #ffffff;
      color: var(--text-main);
      font-size: 1.05rem;
      font-weight: 600;
      padding: 14px 30px;
      border-radius: var(--radius-full);
      text-decoration: none;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .btn-sub:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    /* 首屏数据卡片 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 10px;
    }

    .stat-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(79, 70, 229, 0.3);
    }

    .stat-card .num {
      font-size: 2rem;
      font-weight: 900;
      background: var(--gradient-main);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 6px;
    }

    .stat-card .label {
      font-size: 0.88rem;
      color: var(--text-sub);
      font-weight: 500;
    }

    /* 平台矩阵与模型支持 */
    .model-tags-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      margin-top: 40px;
    }

    .model-tags-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .model-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-item {
      display: inline-block;
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-full);
      transition: all 0.2s;
    }

    .model-item:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 网格卡片布局 */
    .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;
    }

    /* 通用卡片 */
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      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(-5px);
      box-shadow: var(--shadow-xl);
      border-color: rgba(79, 70, 229, 0.4);
    }

    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: var(--gradient-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
      color: var(--primary);
    }

    .feature-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.65;
      flex-grow: 1;
    }

    .feature-badge {
      display: inline-block;
      align-self: flex-start;
      margin-top: 16px;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--secondary);
      background: rgba(6, 182, 212, 0.1);
      padding: 3px 10px;
      border-radius: var(--radius-full);
    }

    /* 评测与对比板块 */
    .rating-header-card {
      background: var(--gradient-main);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      box-shadow: var(--shadow-xl);
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-title-group h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .rating-title-group p {
      font-size: 1rem;
      opacity: 0.9;
    }

    .rating-score-box {
      display: flex;
      align-items: baseline;
      gap: 8px;
      background: rgba(255, 255, 255, 0.15);
      padding: 16px 28px;
      border-radius: var(--radius-md);
      backdrop-filter: blur(8px);
    }

    .rating-stars {
      color: #fbbf24;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .rating-score {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1;
    }

    .rating-max {
      font-size: 1.1rem;
      opacity: 0.8;
    }

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

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

    .custom-table th, .custom-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

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

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

    .custom-table .highlight-col {
      background: rgba(79, 70, 229, 0.03);
      font-weight: 700;
      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: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--gradient-main);
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    .step-item h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-item p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .review-text {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }

    .review-text::before {
      content: "“";
      font-size: 2.5rem;
      color: rgba(79, 70, 229, 0.15);
      line-height: 1;
      position: absolute;
      top: -10px;
      left: -12px;
      z-index: 0;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }

    .user-avatar-badge {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--gradient-sub);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }

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

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

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.2s;
    }

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

    .faq-question {
      padding: 20px 24px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      color: var(--text-light);
      transition: transform 0.3s;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #f8fafc;
      padding: 0 24px;
      color: var(--text-sub);
      font-size: 0.92rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      padding: 16px 24px 22px;
      max-height: 300px;
    }

    /* 案例与图文展示 */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .media-card-img-wrap {
      aspect-ratio: 16 / 9;
      width: 100%;
      background: #f1f5f9;
      overflow: hidden;
    }

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

    .media-card:hover .media-card-img-wrap img {
      transform: scale(1.05);
    }

    .media-card-body {
      padding: 20px;
    }

    .media-card-body h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .media-card-body p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 需求匹配与表单 */
    .form-container-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-lg);
      max-width: 860px;
      margin: 0 auto;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group.full-width {
      grid-column: span 2;
    }

    .form-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      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(79, 70, 229, 0.15);
    }

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

    /* 资讯与友情链接 */
    .articles-links-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      margin-bottom: 24px;
    }

    .articles-links-box h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 14px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .inline-link-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .inline-link-list a {
      text-decoration: none;
      font-size: 0.9rem;
      color: var(--primary);
      background: #f1f5f9;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s;
    }

    .inline-link-list a:hover {
      background: var(--primary);
      color: #ffffff;
    }

    /* 页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .footer-column h5 {
      color: #f8fafc;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s;
    }

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

    .footer-contact p {
      font-size: 0.88rem;
      margin-bottom: 8px;
    }

    .footer-qrcode-wrap {
      margin-top: 12px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .footer-qrcode-wrap img {
      width: 80px;
      height: 80px;
      border-radius: var(--radius-sm);
      background: #ffffff;
      padding: 4px;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 悬浮客服 */
    .floating-contact {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      cursor: pointer;
      text-decoration: none;
      position: relative;
      transition: all 0.2s;
    }

    .float-btn:hover {
      transform: scale(1.08);
      background: var(--primary);
      color: #ffffff;
    }

    .float-popover {
      display: none;
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 14px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-xl);
      border: 1px solid var(--border-color);
      text-align: center;
      width: 160px;
    }

    .float-popover img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 8px;
      border-radius: var(--radius-sm);
    }

    .float-popover p {
      font-size: 0.8rem;
      color: var(--text-main);
      font-weight: 600;
    }

    .float-btn:hover .float-popover {
      display: block;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .grid-4, .step-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
      }
      .nav-links.active { display: flex; }
      .mobile-menu-toggle { display: block; }
      .grid-3, .media-card-grid, .review-grid { grid-template-columns: 1fr; }
      .grid-2 { grid-template-columns: 1fr; }
      .hero-title { font-size: 2rem; }
      .rating-header-card { flex-direction: column; text-align: center; }
      .form-grid { grid-template-columns: 1fr; }
      .form-group.full-width { grid-column: span 1; }
      .footer-grid { grid-template-columns: 1fr; }
    }