:root {
      --primary-cyan: #0d9488;
      --primary-dark: #0f766e;
      --primary-light: #ccfbf1;
      --primary-gradient: linear-gradient(135deg, #0d9488 0%, #06b6d4 100%);
      --tech-bg: #f8fafc;
      --card-bg: #ffffff;
      --text-main: #0f172a;
      --text-sub: #334155;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --border-cyan: #99f6e4;
      --shadow-sm: 0 2px 8px rgba(13, 148, 136, 0.05);
      --shadow-md: 0 8px 24px rgba(13, 148, 136, 0.08);
      --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      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(--tech-bg);
      background-image: 
        radial-gradient(at 0% 0%, rgba(204, 251, 241, 0.45) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(207, 250, 254, 0.45) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    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: 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, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

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

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

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

    .brand-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

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

    .nav-item {
      padding: 8px 14px;
      font-size: 0.93rem;
      font-weight: 500;
      color: var(--text-sub);
      border-radius: var(--radius-sm);
      transition: color 0.2s, background-color 0.2s;
    }

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

    .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-md);
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      background-color: var(--primary-light);
      transform: translateY(-2px);
    }

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

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

    /* 首屏 Hero 区域 - 严禁图片 */
    .hero-section {
      padding: 80px 0 60px;
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(13, 148, 136, 0.08);
      border: 1px solid var(--border-cyan);
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary-dark);
      margin-bottom: 24px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary-cyan);
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.2);
    }

    .hero-title {
      font-size: clamp(2rem, 4vw, 3.2rem);
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-subtitle {
      font-size: clamp(1rem, 1.8vw, 1.2rem);
      color: var(--text-sub);
      max-width: 820px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 54px;
      flex-wrap: wrap;
    }

    .hero-cta-primary {
      padding: 14px 34px;
      font-size: 1.1rem;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, border-color 0.25s ease;
    }

    .hero-stat-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-cyan);
      box-shadow: var(--shadow-md);
    }

    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 4px;
      line-height: 1.2;
    }

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

    /* 通用板块与排版 */
    .section-spacing {
      padding: 70px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-cyan);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
    }

    .section-title {
      font-size: clamp(1.6rem, 2.5vw, 2.2rem);
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 模型矩阵与平台介绍 */
    .platform-intro-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 32px;
    }

    .intro-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
      margin-top: 28px;
    }

    .intro-feature-item {
      padding: 20px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary-cyan);
    }

    .intro-feature-item h3 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .intro-feature-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .model-tags-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .model-tags-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 18px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .model-tags-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .model-pill {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      background: #f1f5f9;
      color: var(--text-sub);
      font-size: 0.88rem;
      font-weight: 600;
      border-radius: 999px;
      border: 1px solid transparent;
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
      border-color: var(--border-cyan);
    }

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

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

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

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

    .service-badge {
      display: inline-block;
      padding: 3px 10px;
      background: rgba(13, 148, 136, 0.1);
      color: var(--primary-dark);
      font-size: 0.78rem;
      font-weight: 700;
      border-radius: 4px;
      margin-bottom: 14px;
      width: fit-content;
    }

    .service-card h3 {
      font-size: 1.2rem;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .card-footer-tag {
      font-size: 0.82rem;
      color: var(--primary-cyan);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 标准流程时间线 */
    .process-steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-number-pill {
      width: 44px;
      height: 44px;
      line-height: 44px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      font-weight: 700;
      font-size: 1.2rem;
      margin: 0 auto 16px;
    }

    .process-step-item h3 {
      font-size: 1.1rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    /* 案例与素材展示区 */
    .media-case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 0;
      align-items: center;
      margin-bottom: 28px;
    }

    .media-case-img-wrap {
      width: 100%;
      height: 100%;
      min-height: 280px;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

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

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

    .media-case-content {
      padding: 36px 32px;
    }

    .media-case-content h3 {
      font-size: 1.35rem;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .media-case-content p {
      font-size: 0.94rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .media-gallery-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 24px;
    }

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

    .gallery-img-box {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #f1f5f9;
    }

    .gallery-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .gallery-item-card:hover .gallery-img-box img {
      transform: scale(1.04);
    }

    .gallery-caption {
      padding: 16px;
    }

    .gallery-caption h4 {
      font-size: 1rem;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .gallery-caption p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 对比评测表格 */
    .compare-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, rgba(13, 148, 136, 0.08) 0%, rgba(6, 182, 212, 0.08) 100%);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      margin-bottom: 28px;
      flex-wrap: wrap;
      gap: 16px;
    }

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

    .score-big {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1;
    }

    .score-total {
      font-size: 1rem;
      color: var(--text-muted);
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .table-responsive {
      overflow-x: auto;
      width: 100%;
    }

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

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.93rem;
    }

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

    .highlight-col {
      background-color: rgba(204, 251, 241, 0.25);
      color: var(--primary-dark);
      font-weight: 600;
    }

    /* Token 比价板块 */
    .token-price-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
      margin-top: 24px;
    }

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

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

    .token-price {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin: 12px 0 6px;
    }

    .token-subinfo {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    /* 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: 28px 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border-top: 3px solid var(--primary-cyan);
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: normal;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .reviewer-info h4 {
      font-size: 0.95rem;
      color: var(--text-main);
      margin-bottom: 2px;
    }

    .reviewer-info span {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠板 */
    .faq-list {
      max-width: 920px;
      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;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.2s;
    }

    .faq-item.active {
      border-color: var(--border-cyan);
    }

    .faq-question {
      width: 100%;
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      text-align: left;
    }

    .faq-icon {
      font-size: 1.3rem;
      font-weight: 300;
      color: var(--primary-cyan);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background-color: #fafbfc;
      color: var(--text-sub);
      font-size: 0.93rem;
      line-height: 1.7;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 16px 24px 22px;
      border-top: 1px solid var(--border-color);
    }

    /* 需求匹配与表单 */
    .form-container-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
      max-width: 860px;
      margin: 0 auto;
    }

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

    .form-full {
      grid-column: 1 / -1;
    }

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

    .form-group 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-color: #ffffff;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary-cyan);
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 120px;
    }

    /* 加盟代理与算力分润 */
    .partner-card {
      background: linear-gradient(135deg, #f0fdfa 0%, #e0f2fe 100%);
      border: 1px solid var(--border-cyan);
      border-radius: var(--radius-lg);
      padding: 44px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .partner-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin: 32px 0;
      text-align: left;
    }

    .partner-box {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .partner-box h4 {
      font-size: 1.1rem;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }

    .partner-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业资讯与短代码文章 */
    .articles-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .articles-list-wrap {
      margin-top: 18px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-link-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 18px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-sub);
      transition: background 0.2s, color 0.2s;
    }

    .article-link-item:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }

    /* 联系我们与客服二维码 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .contact-info-item {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #ffffff;
      padding: 18px 24px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }

    .contact-info-item strong {
      font-size: 0.95rem;
      color: var(--text-main);
      min-width: 90px;
    }

    .contact-info-item span, .contact-info-item a {
      font-size: 0.95rem;
      color: var(--text-sub);
    }

    .qr-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .qr-img-box {
      width: 170px;
      height: 170px;
      margin: 0 auto 16px;
      background: #f8fafc;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px dashed var(--border-cyan);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }

    .qr-img-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 56px 0 32px;
      border-top: 1px solid #1e293b;
      margin-top: 60px;
    }

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

    .footer-col h4 {
      color: #f8fafc;
      font-size: 1.05rem;
      margin-bottom: 18px;
    }

    .footer-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-links-list a {
      color: #94a3b8;
      font-size: 0.88rem;
    }

    .footer-links-list a:hover {
      color: #38bdf8;
    }

    .footer-bottom-bar {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.86rem;
    }

    /* 悬浮客服与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .tool-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-dark);
      cursor: pointer;
      font-weight: 700;
      transition: all 0.25s ease;
      font-size: 0.82rem;
    }

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

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .grid-4, .review-grid, .partner-grid, .process-steps-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .media-case-card {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .nav-actions .btn-outline {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
      }
      .nav-item {
        width: 100%;
        padding: 12px;
      }
      .hero-stats-grid, .grid-3, .grid-4, .review-grid, .partner-grid, .process-steps-wrap, .media-gallery-row {
        grid-template-columns: 1fr;
      }
      .lead-form {
        grid-template-columns: 1fr;
      }
      .form-container-card {
        padding: 24px;
      }
      .compare-wrapper, .platform-intro-card, .partner-card {
        padding: 20px;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
    }