:root {
      --primary: #D62828;
      --primary-hover: #BA181B;
      --primary-light: #FFF0F0;
      --primary-subtle: #FFE3E3;
      --accent-coral: #E63946;
      --accent-gold: #F77F00;
      --text-main: #1F2429;
      --text-muted: #57606A;
      --text-light: #8C959F;
      --bg-page: #FDFBFB;
      --bg-surface: #FFFFFF;
      --bg-subtle: #FBF7F7;
      --border-color: #EFE3E3;
      --border-focus: #D62828;
      --shadow-sm: 0 2px 8px rgba(214, 40, 40, 0.04);
      --shadow-md: 0 8px 24px rgba(214, 40, 40, 0.08);
      --shadow-lg: 0 16px 36px rgba(214, 40, 40, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.28s ease;
    }

    * {
      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", "WenQuanYi Micro Hei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    .container {
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
      width: 100%;
    }

    .section {
      padding: 72px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-subtle);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      border: 1px solid var(--primary-subtle);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

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

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

    .brand-logo-wrap img.ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-name-group {
      display: flex;
      flex-direction: column;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.3px;
      line-height: 1.2;
    }

    .brand-desc {
      font-size: 0.72rem;
      color: var(--text-muted);
      letter-spacing: 0.2px;
    }

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

    .nav-item a {
      display: block;
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

    .nav-item a:hover {
      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;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
      line-height: 1.3;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(214, 40, 40, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(214, 40, 40, 0.35);
    }

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

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

    .btn-large {
      padding: 14px 32px;
      font-size: 1.05rem;
      border-radius: var(--radius-md);
    }

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

    /* 首屏 Hero */
    .hero-section {
      background: radial-gradient(circle at 50% 20%, #FFF5F5 0%, #FAF1F1 60%, #F5E8E8 100%);
      padding: 80px 0 68px 0;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-badge-wrap {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      border: 1px solid #F8D7DA;
      box-shadow: var(--shadow-sm);
      padding: 6px 18px;
      border-radius: 999px;
      margin-bottom: 24px;
    }

    .hero-badge-point {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(214, 40, 40, 0.15);
    }

    .hero-badge-text {
      font-size: 0.88rem;
      color: var(--primary);
      font-weight: 700;
    }

    .hero-title {
      font-size: 2.6rem;
      font-weight: 900;
      color: #111417;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

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

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 840px;
      margin: 0 auto 36px auto;
      line-height: 1.65;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 48px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .hero-stat-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 6px;
    }

    .hero-stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 平台介绍与模型矩阵 */
    .platform-intro-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 48px;
      box-shadow: var(--shadow-sm);
    }

    .platform-intro-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .platform-intro-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .platform-intro-text p {
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.7;
    }

    .platform-core-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 20px;
    }

    .platform-core-list li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .platform-core-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
      background: var(--primary-light);
      width: 20px;
      height: 20px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      font-size: 0.75rem;
    }

    .model-chips-container {
      background: var(--bg-subtle);
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .model-chips-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .model-chip-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-chip {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 0.82rem;
      font-weight: 600;
      transition: var(--transition);
    }

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

    /* 服务能力卡片与场景网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .service-card-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 18px;
      font-weight: 800;
    }

    .service-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .service-card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-badge {
      font-size: 0.75rem;
      padding: 2px 8px;
      background: var(--bg-subtle);
      border-radius: 4px;
      color: var(--text-muted);
      border: 1px solid var(--border-color);
    }

    /* 行业解决方案与素材图融合展示 */
    .solutions-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
      margin-bottom: 48px;
    }

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

    .solutions-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }

    .solutions-media:hover img {
      transform: scale(1.02);
    }

    .solutions-text-wrap h3 {
      font-size: 1.7rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .solutions-text-wrap p {
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .solutions-feature-pills {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .sol-pill {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }

    .sol-pill-dot {
      width: 10px;
      height: 10px;
      background: var(--primary);
      border-radius: 50%;
      margin-top: 6px;
      flex-shrink: 0;
    }

    .sol-pill h4 {
      font-size: 0.98rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .sol-pill p {
      margin-bottom: 0;
      font-size: 0.88rem;
    }

    /* 流程规范步骤 */
    .process-steps-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .process-step-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .process-step-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #FFFFFF;
      border-radius: 50%;
      margin: 0 auto 14px auto;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
    }

    .process-step-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .process-step-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测模块 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #FFFFFF 0%, #FFF5F5 100%);
      border: 2px solid var(--primary-subtle);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 32px;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .eval-highlight-left {
      max-width: 600px;
    }

    .eval-score-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary);
      color: #FFFFFF;
      padding: 6px 16px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 0.95rem;
      margin-bottom: 12px;
    }

    .eval-highlight-title {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .eval-score-large {
      display: flex;
      align-items: baseline;
      gap: 6px;
    }

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

    .score-max {
      font-size: 1.2rem;
      color: var(--text-muted);
      font-weight: 700;
    }

    .eval-stars {
      color: #F77F00;
      font-size: 1.4rem;
      margin-top: 4px;
      letter-spacing: 2px;
    }

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

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

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }

    .comparison-table th {
      background: var(--bg-subtle);
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table td.col-brand {
      background: rgba(214, 40, 40, 0.03);
      font-weight: 700;
      color: var(--primary);
    }

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

    /* Token 比价专区 */
    .token-tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
      position: relative;
    }

    .token-card.popular {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
      transform: scale(1.02);
    }

    .token-card-tag {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 14px;
      border-radius: 999px;
    }

    .token-card-title {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .token-card-price {
      font-size: 2.4rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 16px;
      line-height: 1;
    }

    .token-card-price span {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .token-feature-list {
      list-style: none;
      text-align: left;
      margin-bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .token-feature-list li {
      font-size: 0.88rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .token-feature-list li::before {
      content: "•";
      color: var(--primary);
      font-size: 1.4rem;
      line-height: 0;
    }

    /* 智能需求匹配与表单 */
    .form-section-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
      max-width: 900px;
      margin: 0 auto;
    }

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

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

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

    .form-label {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-family: inherit;
      color: var(--text-main);
      background-color: var(--bg-subtle);
      transition: var(--transition);
      outline: none;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--border-focus);
      background-color: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(214, 40, 40, 0.12);
    }

    /* 客户评价板块 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .testi-stars {
      color: #F77F00;
      margin-bottom: 12px;
      font-size: 1rem;
    }

    .testi-text {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: italic;
    }

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

    .author-avatar {
      width: 42px;
      height: 42px;
      background: var(--primary-light);
      color: var(--primary);
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }

    .author-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .author-title {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* FAQ 常见问题折叠 */
    .faq-container {
      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-sm);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-header {
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 700;
      font-size: 1rem;
      color: var(--text-main);
      user-select: none;
    }

    .faq-header:hover {
      background: var(--bg-subtle);
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.28s ease;
      color: var(--primary);
    }

    .faq-body {
      padding: 0 22px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.65;
      background: var(--bg-subtle);
    }

    .faq-item.active .faq-body {
      padding: 16px 22px 20px 22px;
      max-height: 320px;
      border-top: 1px solid var(--border-color);
    }

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

    /* 文章与百科模块 */
    .content-dual-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .news-card-box,
    .wiki-card-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
    }

    .news-card-box h3,
    .wiki-card-box h3 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 20px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .news-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .news-link-item a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 14px;
      background: var(--bg-subtle);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      font-weight: 600;
    }

    .news-link-item a:hover {
      background: var(--primary-light);
      color: var(--primary);
      transform: translateX(4px);
    }

    .banner-slot {
      margin-top: 48px;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    /* 加盟代理模块 */
    .agent-promo-card {
      background: linear-gradient(135deg, #BA181B 0%, #D62828 60%, #E63946 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
      box-shadow: var(--shadow-lg);
    }

    .agent-promo-card h3 {
      font-size: 2rem;
      font-weight: 900;
      margin-bottom: 16px;
    }

    .agent-promo-card p {
      font-size: 1.05rem;
      max-width: 720px;
      margin: 0 auto 28px auto;
      opacity: 0.92;
      line-height: 1.65;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 36px;
    }

    .agent-perk-item {
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .agent-perk-item h4 {
      font-size: 1.15rem;
      margin-bottom: 6px;
      font-weight: 700;
    }

    .agent-perk-item p {
      font-size: 0.85rem;
      margin-bottom: 0;
      opacity: 0.85;
    }

    .btn-agent-white {
      background: #FFFFFF;
      color: var(--primary);
      font-weight: 800;
      font-size: 1.05rem;
      padding: 14px 36px;
      border-radius: var(--radius-md);
    }

    .btn-agent-white:hover {
      background: #FFF5F5;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

    /* 案例中心展示 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .case-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }

    .case-img-wrap {
      height: 190px;
      overflow: hidden;
      background: var(--bg-subtle);
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

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

    .case-info {
      padding: 20px;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

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

    /* 页脚设计 */
    .site-footer {
      background-color: #FFFFFF;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 32px 0;
      color: var(--text-main);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand h4 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .footer-col h5 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
      color: var(--text-main);
      position: relative;
    }

    .footer-col h5::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }

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

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

    .footer-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .footer-qr-wrap {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .qr-box {
      width: 100px;
      background: #FFFFFF;
      padding: 6px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      text-align: center;
    }

    .qr-box img {
      width: 100%;
      height: auto;
    }

    .qr-label {
      font-size: 0.75rem;
      color: var(--text-muted);
      margin-top: 4px;
      font-weight: 600;
    }

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    .copyright {
      font-size: 0.85rem;
      color: var(--text-light);
    }

    .friend-links-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .friend-links-row a {
      color: var(--text-muted);
    }

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

    /* 悬浮小组件 */
    .float-tools {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.2rem;
      cursor: pointer;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #FFFFFF;
      transform: scale(1.1);
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2.1rem;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .testimonials-grid,
      .case-grid,
      .token-tier-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .platform-intro-grid,
      .solutions-layout,
      .content-dual-grid {
        grid-template-columns: 1fr;
      }
      .process-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
      .agent-perks {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-item {
        width: 100%;
      }
      .nav-item a {
        padding: 10px 0;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .hero-subtitle {
        font-size: 1rem;
      }
      .services-grid,
      .testimonials-grid,
      .case-grid,
      .token-tier-grid {
        grid-template-columns: 1fr;
      }
      .contact-form-grid {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        text-align: center;
      }
      .eval-score-large {
        justify-content: center;
      }
      .platform-intro-box {
        padding: 24px 16px;
      }
      .form-section-card {
        padding: 28px 18px;
      }
    }