/* 全局变量与彩虹多彩色系设定 */
    :root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --primary-light: #eef2ff;
      --rainbow-red: #ef4444;
      --rainbow-orange: #f97316;
      --rainbow-amber: #f59e0b;
      --rainbow-emerald: #10b981;
      --rainbow-teal: #14b8a6;
      --rainbow-sky: #0ea5e9;
      --rainbow-indigo: #6366f1;
      --rainbow-purple: #8b5cf6;
      --rainbow-pink: #ec4899;
      --rainbow-grad: linear-gradient(135deg, #ef4444 0%, #f97316 16%, #f59e0b 32%, #10b981 48%, #0ea5e9 64%, #6366f1 80%, #ec4899 100%);
      --bg-main: #fcfdfe;
      --bg-surface: #ffffff;
      --bg-subtle: #f8fafc;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-subtle: #e2e8f0;
      --border-focus: #c7d2fe;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 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 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
      --shadow-colored: 0 10px 25px -5px rgba(79, 70, 229, 0.15);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --container-width: 1200px;
      --transition-base: all 0.25s ease-in-out;
    }

    /* 基础重置 */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    /* 统一主容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: var(--primary-hover);
    }

    /* 彩虹渐变顶部饰条 */
    .rainbow-bar {
      height: 4px;
      width: 100%;
      background: var(--rainbow-grad);
    }

    /* 顶部导航 */
    .site-header {
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 100;
      border-bottom: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-logo-wrapper {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }
    .brand-title-badge {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    /* 要求 .nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      color: var(--text-muted);
      font-size: 0.925rem;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      padding: 10px 20px;
      border-radius: var(--radius-full);
      border: 1px solid transparent;
      cursor: pointer;
      font-size: 0.925rem;
      transition: var(--transition-base);
      white-space: nowrap;
      text-decoration: none;
    }
    .btn-primary {
      background: var(--rainbow-grad);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
    }
    .btn-primary:hover {
      opacity: 0.92;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
    }
    .btn-outline {
      background-color: #ffffff;
      color: var(--text-main);
      border-color: var(--border-subtle);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .btn-sm {
      padding: 6px 14px;
      font-size: 0.85rem;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-main);
      margin: 4px 0;
      transition: var(--transition-base);
    }

    /* 首屏 HERO 区域（严格无图片） */
    .hero-section {
      position: relative;
      padding: 64px 0 54px;
      background: radial-gradient(circle at 50% 10%, rgba(239, 68, 68, 0.05), rgba(79, 70, 229, 0.06) 40%, rgba(16, 185, 129, 0.03) 70%, transparent 100%), var(--bg-subtle);
      border-bottom: 1px solid var(--border-subtle);
      overflow: hidden;
    }
    .hero-decor-orb {
      position: absolute;
      width: 380px;
      height: 380px;
      border-radius: 50%;
      filter: blur(80px);
      opacity: 0.45;
      pointer-events: none;
      z-index: 0;
    }
    .orb-1 {
      background: #f43f5e;
      top: -120px;
      left: -80px;
    }
    .orb-2 {
      background: #38bdf8;
      bottom: -100px;
      right: -80px;
    }
    .orb-3 {
      background: #facc15;
      top: 30%;
      right: 20%;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      background-color: #ffffff;
      border: 1px solid rgba(99, 102, 241, 0.2);
      box-shadow: var(--shadow-sm);
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }
    .badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--rainbow-emerald);
      box-shadow: 0 0 8px var(--rainbow-emerald);
    }

    /* H1 字数限制在20字内 */
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -1px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .btn-hero-major {
      padding: 14px 34px;
      font-size: 1.05rem;
      font-weight: 700;
    }

    .hero-metrics-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(8px);
      padding: 20px 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-md);
    }
    .metric-item {
      text-align: center;
    }
    .metric-value {
      font-size: 1.65rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
    }
    .metric-rainbow-1 { color: var(--rainbow-red); }
    .metric-rainbow-2 { color: var(--rainbow-orange); }
    .metric-rainbow-3 { color: var(--rainbow-sky); }
    .metric-rainbow-4 { color: var(--rainbow-purple); }
    .metric-label {
      font-size: 0.85rem;
      color: var(--text-light);
      font-weight: 500;
    }

    /* 主内容区模块公共样式 */
    .section-wrap {
      padding: 72px 0;
      border-bottom: 1px solid var(--border-subtle);
    }
    .section-wrap:nth-child(even) {
      background-color: var(--bg-subtle);
    }

    .section-header {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 48px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      background: var(--primary-light);
      color: var(--primary);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 0.975rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 多彩卡片网格 */
    .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: 32px;
      align-items: center;
    }

    .card {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--border-focus);
    }
    .card-top-stripe {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
    }
    .stripe-red { background-color: var(--rainbow-red); }
    .stripe-orange { background-color: var(--rainbow-orange); }
    .stripe-yellow { background-color: var(--rainbow-amber); }
    .stripe-green { background-color: var(--rainbow-emerald); }
    .stripe-blue { background-color: var(--rainbow-sky); }
    .stripe-purple { background-color: var(--rainbow-purple); }

    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      font-size: 1.35rem;
    }
    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .card-desc {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }
    .card-footer-info {
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-subtle);
      font-size: 0.85rem;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 场景分类标签列表 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
      justify-content: center;
    }
    .rainbow-tag {
      font-size: 0.85rem;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      color: var(--text-main);
      font-weight: 500;
      transition: var(--transition-base);
    }
    .rainbow-tag:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
      transform: scale(1.03);
    }

    /* 支持的 AI 平台徽章阵列 */
    .model-badge-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 12px;
      margin-top: 30px;
    }
    .model-badge {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      padding: 12px 8px;
      border-radius: var(--radius-md);
      text-align: center;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
    }
    .model-badge:hover {
      background: var(--primary-light);
      color: var(--primary);
      border-color: var(--border-focus);
      transform: translateY(-2px);
    }

    /* 对比评测模块特化设计 */
    .rating-highlight-box {
      background: linear-gradient(135deg, #eef2ff 0%, #ffffff 50%, #fdf2f8 100%);
      border: 1px solid rgba(99, 102, 241, 0.2);
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-colored);
      flex-wrap: wrap;
      gap: 20px;
    }
    .rating-score-block {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .score-circle {
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: var(--rainbow-grad);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-weight: 800;
      box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
    }
    .score-circle .score-num {
      font-size: 1.8rem;
      line-height: 1;
    }
    .score-circle .score-max {
      font-size: 0.75rem;
      opacity: 0.9;
    }
    .rating-text h4 {
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .star-render {
      color: #f59e0b;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }
    .comparison-table th, 
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
    }
    .comparison-table th {
      background-color: var(--bg-subtle);
      font-weight: 700;
      color: var(--text-main);
      font-size: 0.95rem;
    }
    .comparison-table td {
      font-size: 0.925rem;
      color: var(--text-muted);
    }
    .comparison-table tr:last-child td {
      border-bottom: none;
    }
    .comparison-table tr:hover td {
      background-color: #fafbfc;
    }
    .col-highlight {
      background-color: rgba(99, 102, 241, 0.03);
      font-weight: 600;
      color: var(--primary) !important;
    }

    /* 流程步骤 */
    .steps-chain {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 24px;
      position: relative;
    }
    .step-number {
      font-size: 2rem;
      font-weight: 800;
      color: #cbd5e1;
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-card:hover .step-number {
      color: var(--primary);
    }

    /* 媒体图库展示 */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 20px;
      align-items: stretch;
      margin-top: 30px;
    }
    .media-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .media-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .media-card:hover img {
      transform: scale(1.03);
    }
    .media-sub-grid {
      display: grid;
      grid-template-rows: 1fr 1fr;
      gap: 20px;
    }

    /* 用户评论卡片 */
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-quote {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: normal;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-subtle);
      padding-top: 14px;
    }
    .author-avatar-text {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--rainbow-grad);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }
    .author-meta h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-meta p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* FAQ 手风琴样式 */
    .faq-accordion-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition-base);
    }
    .faq-item:hover {
      border-color: var(--border-focus);
    }
    .faq-question-btn {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 1.025rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .faq-toggle-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.25s ease;
      font-weight: 400;
    }
    .faq-answer-content {
      padding: 0 24px 18px;
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed var(--border-subtle);
      margin-top: 4px;
      padding-top: 14px;
    }
    .faq-item.active .faq-answer-content {
      display: block;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    /* 表单区域 */
    .form-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: var(--bg-subtle);
      outline: none;
      transition: var(--transition-base);
      font-family: inherit;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }
    .form-row-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    /* 文章与资讯外链 */
    .article-links-strip {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      padding: 24px;
      margin-top: 24px;
    }
    .article-link-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 0.925rem;
    }
    .article-link-item:last-child {
      border-bottom: none;
    }

    /* 浮动工具栏 */
    .floating-support-bar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-action-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--text-main);
      box-shadow: var(--shadow-lg);
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border-subtle);
      cursor: pointer;
      text-decoration: none;
      transition: var(--transition-base);
    }
    .float-action-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }
    .float-kefu-box {
      position: relative;
    }
    .float-qr-popover {
      display: none;
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      width: 160px;
      text-align: center;
    }
    .float-qr-popover img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
      display: block;
    }
    .float-qr-popover p {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 6px;
    }
    .float-kefu-box:hover .float-qr-popover {
      display: block;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-subtle);
      padding: 56px 0 28px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 32px;
      margin-bottom: 40px;
    }
    .footer-brand p {
      margin-top: 14px;
      font-size: 0.875rem;
      line-height: 1.6;
      color: var(--text-muted);
      max-width: 320px;
    }
    .footer-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      font-size: 0.875rem;
    }
    .footer-links-list a:hover {
      color: var(--primary);
    }
    .footer-qr-block {
      text-align: center;
      max-width: 140px;
    }
    .footer-qr-block img {
      width: 100%;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
    }

    .footer-friendship-block {
      padding: 20px 0;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
      margin-bottom: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
    }
    .friendship-label {
      font-weight: 700;
      color: var(--text-main);
      font-size: 0.85rem;
    }
    .footer-friendship-block a {
      color: var(--text-muted);
      font-size: 0.85rem;
      margin-right: 12px;
    }
    .footer-friendship-block a:hover {
      color: var(--primary);
    }

    .footer-bottom-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.825rem;
      color: var(--text-light);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2.15rem;
      }
      .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-chain {
        grid-template-columns: repeat(2, 1fr);
      }
      .model-badge-grid {
        grid-template-columns: repeat(4, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
      .grid-2 {
        grid-template-columns: 1fr;
      }
      .media-showcase-grid {
        grid-template-columns: 1fr;
      }
      .media-sub-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-subtle);
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .hero-metrics-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .grid-4 {
        grid-template-columns: 1fr;
      }
      .steps-chain {
        grid-template-columns: 1fr;
      }
      .model-badge-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .form-row-2 {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.75rem;
      }
    }