:root {
      --primary-red: #ff3366;
      --primary-orange: #ff6b35;
      --primary-yellow: #f7c948;
      --primary-green: #00c48c;
      --primary-cyan: #00b4d8;
      --primary-blue: #3a86ff;
      --primary-purple: #8338ec;
      
      --grad-rainbow: linear-gradient(135deg, #ff3366 0%, #ff6b35 18%, #f7c948 36%, #00c48c 54%, #00b4d8 72%, #3a86ff 86%, #8338ec 100%);
      --grad-rainbow-light: linear-gradient(135deg, rgba(255, 51, 102, 0.08) 0%, rgba(255, 107, 53, 0.08) 20%, rgba(0, 196, 140, 0.08) 50%, rgba(58, 134, 255, 0.08) 80%, rgba(131, 56, 236, 0.08) 100%);
      --grad-rainbow-subtle: linear-gradient(180deg, #fbfcfe 0%, #f4f7fc 100%);
      
      --text-main: #1e2432;
      --text-muted: #576074;
      --text-light: #8993a4;
      
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --bg-card-soft: #fbfcfe;
      
      --border-color: #e5e9f2;
      --border-rainbow: linear-gradient(90deg, #ff3366, #ff6b35, #f7c948, #00c48c, #00b4d8, #3a86ff, #8338ec);
      
      --shadow-sm: 0 4px 12px rgba(30, 36, 50, 0.04);
      --shadow-md: 0 10px 25px rgba(30, 36, 50, 0.06);
      --shadow-lg: 0 16px 36px rgba(58, 134, 255, 0.1);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-pill: 9999px;
      
      --container-width: 1200px;
    }

    * {
      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-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(255, 51, 102, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 20%, rgba(0, 180, 216, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(131, 56, 236, 0.03) 0%, transparent 50%);
      background-attachment: fixed;
    }

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

    ul, ol {
      list-style: none;
    }

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

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

    /* 顶部彩虹光条 */
    .rainbow-top-bar {
      height: 4px;
      background: var(--grad-rainbow);
      width: 100%;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

    .brand-logo-wrap {
      max-height: 44px;
      display: flex;
      align-items: center;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
    }

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

    .nav-links a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      position: relative;
    }

    .nav-links a:hover {
      color: var(--primary-blue);
      background: rgba(58, 134, 255, 0.05);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      cursor: pointer;
      border: none;
      transition: all 0.3s ease;
      text-align: center;
    }

    .btn-rainbow {
      background: var(--grad-rainbow);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
    }

    .btn-rainbow:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(255, 51, 102, 0.4);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      background: rgba(58, 134, 255, 0.08);
      transform: translateY(-2px);
    }

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

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* 模块通用样式 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }

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

    .badge-rainbow {
      display: inline-block;
      padding: 4px 14px;
      font-size: 0.82rem;
      font-weight: 700;
      color: #ffffff;
      background: var(--grad-rainbow);
      border-radius: var(--radius-pill);
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 80px 0 60px 0;
      position: relative;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(248, 250, 252, 0.95) 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-content {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-tagline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-pill);
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-tag-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #00c48c;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 196, 140, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 196, 140, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 196, 140, 0); }
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 50px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease, border-color 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .stat-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--grad-rainbow);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      border-color: rgba(58, 134, 255, 0.4);
      box-shadow: var(--shadow-md);
    }

    .stat-card:hover::before {
      opacity: 1;
    }

    .stat-number {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 2px;
    }

    .stat-number .highlight {
      color: var(--primary-orange);
    }

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

    /* 平台矩阵 */
    .model-tags-wrap {
      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;
    }

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

    .model-tag {
      padding: 6px 14px;
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-pill);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      transition: all 0.2s ease;
    }

    .model-tag:hover {
      background: #ffffff;
      border-color: var(--primary-blue);
      color: var(--primary-blue);
      transform: translateY(-2px);
      box-shadow: 0 4px 10px rgba(58, 134, 255, 0.12);
    }

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

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

    .cards-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-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(58, 134, 255, 0.3);
    }

    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      background: var(--grad-rainbow-light);
      color: var(--primary-blue);
    }

    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

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

    .card-footer-action {
      margin-top: 16px;
      padding-top: 12px;
      border-top: 1px dashed var(--border-color);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary-blue);
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 流程步骤 */
    .workflow-steps {
      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: 28px 20px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--grad-rainbow);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
    }

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

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

    /* 评测对比与评分 */
    .review-score-banner {
      background: linear-gradient(135deg, #ffffff 0%, #f7faff 100%);
      border: 2px solid transparent;
      background-clip: padding-box;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
      position: relative;
    }

    .review-score-banner::before {
      content: '';
      position: absolute;
      inset: -2px;
      border-radius: calc(var(--radius-lg) + 2px);
      background: var(--grad-rainbow);
      z-index: -1;
    }

    .score-banner-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .score-left h3 {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .score-stars {
      color: #ffaa00;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .score-right {
      display: flex;
      align-items: baseline;
      gap: 8px;
    }

    .score-huge {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--primary-red);
      line-height: 1;
    }

    .score-total {
      font-size: 1.2rem;
      color: var(--text-muted);
      font-weight: 600;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
      min-width: 680px;
    }

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

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

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

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

    .col-highlight {
      background: rgba(58, 134, 255, 0.03);
      font-weight: 600;
      color: var(--primary-blue);
    }

    /* 案例中心图文 */
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .case-media {
      aspect-ratio: 16 / 9;
      background: #eef2f7;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

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

    .case-body {
      padding: 22px;
    }

    .case-tag {
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--primary-purple);
      background: rgba(131, 56, 236, 0.08);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    /* 需求匹配与表单 */
    .match-form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .form-info-side h3 {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .contact-item-list {
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .contact-icon-box {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-blue);
      font-weight: bold;
    }

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

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

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.92rem;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.25s ease;
      background: #ffffff;
      color: var(--text-main);
    }

    .form-control:focus {
      border-color: var(--primary-blue);
      box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.12);
    }

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

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

    .review-text {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 18px;
      font-style: normal;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--grad-rainbow-light);
      color: var(--primary-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .reviewer-info h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* FAQ 手风琴 */
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-item.active {
      border-color: rgba(58, 134, 255, 0.4);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

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

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #fafcff;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.6;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 14px 24px 20px 24px;
      border-top: 1px dashed var(--border-color);
    }

    /* 文章列表 & AI百科 */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 14px;
    }

    .article-link-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

    .article-link-card:hover {
      border-color: var(--primary-blue);
      color: var(--primary-blue);
      transform: translateX(4px);
    }

    /* 友情链接与底部 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding-top: 50px;
      padding-bottom: 30px;
      color: var(--text-muted);
    }

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

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-links-list li {
      margin-bottom: 10px;
    }

    .footer-links-list a {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .footer-links-list a:hover {
      color: var(--primary-blue);
    }

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 16px;
      margin-top: 12px;
    }

    .friend-links-box a {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

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

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-light);
    }

    /* 悬浮客服面板 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.2rem;
      color: var(--text-main);
      transition: all 0.25s ease;
      position: relative;
    }

    .float-btn:hover {
      transform: scale(1.08);
      border-color: var(--primary-blue);
      color: var(--primary-blue);
    }

    .float-btn-primary {
      background: var(--grad-rainbow);
      color: #ffffff;
      border: none;
    }

    .float-btn-primary:hover {
      color: #ffffff;
    }

    .qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px;
      box-shadow: var(--shadow-lg);
      display: none;
      width: 170px;
      text-align: center;
    }

    .float-btn:hover .qr-popup {
      display: block;
    }

    .qr-popup img {
      width: 100%;
      height: auto;
      margin-bottom: 8px;
    }

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

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .hero-title { font-size: 2.2rem; }
      .cards-grid-3, .cards-grid-4 { grid-template-columns: repeat(2, 1fr); }
      .workflow-steps { grid-template-columns: repeat(2, 1fr); }
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
      .match-form-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a { width: 100%; text-align: center; padding: 12px 0; }
      .menu-toggle { display: block; }
      .hero-title { font-size: 1.85rem; }
      .hero-desc { font-size: 1rem; }
      .section-title { font-size: 1.7rem; }
      .cards-grid-3, .cards-grid-4, .cards-grid-2 { grid-template-columns: 1fr; }
      .workflow-steps { grid-template-columns: 1fr; }
      .hero-stats-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .score-banner-inner { flex-direction: column; text-align: center; }
    }