:root {
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --primary-light: #eff6ff;
      --accent: #7c3aed;
      --accent-light: #f5f3ff;
      --success: #059669;
      --warning: #d97706;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --border-focus: #93c5fd;
      --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
      --radius: 12px;
      --radius-sm: 8px;
      --transition: all 0.24s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      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;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

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

    .brand-meta {
      display: flex;
      flex-direction: column;
    }

    .brand-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.2;
    }

    .brand-tag {
      font-size: 0.72rem;
      color: var(--primary);
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    /* 导航链接严格设置 gap: 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.92rem;
      color: var(--text-muted);
      font-weight: 500;
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 0.92rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #3b82f6);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-hover), #2563eb);
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.38);
      transform: translateY(-1px);
      color: #ffffff;
    }

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

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

    .btn-accent {
      background: linear-gradient(135deg, var(--accent), #9333ea);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(124, 58, 237, 0.28);
    }

    .btn-accent:hover {
      background: linear-gradient(135deg, #6d28d9, var(--accent));
      transform: translateY(-1px);
      color: #ffffff;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

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

    /* 首屏 Hero - 严格无图：纯CSS渐变与几何网格 */
    .hero-section {
      position: relative;
      overflow: hidden;
      background: radial-gradient(circle at 20% 20%, #e0f2fe 0%, #f0fdf4 40%, #f8fafc 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 84px 0 76px 0;
    }

    .hero-decor-grid {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: 
        linear-gradient(to right, rgba(37, 99, 235, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
      background-size: 32px 32px;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: #ffffff;
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--primary);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-badge .pulse-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--success);
      box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.4);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(5, 150, 105, 0.4); }
      70% { box-shadow: 0 0 0 8px rgba(5, 150, 105, 0); }
      100% { box-shadow: 0 0 0 0 rgba(5, 150, 105, 0); }
    }

    /* H1 字数严格控制在20字内 */
    .hero-title {
      font-size: 2.6rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 32px auto;
      font-weight: 400;
    }

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

    .hero-actions .btn {
      padding: 14px 32px;
      font-size: 1.05rem;
    }

    /* 纯CSS首屏指标卡片 (无图片) */
    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .metric-card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .metric-num {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 通用区块排版 */
    .section-wrap {
      padding: 72px 0;
      position: relative;
    }

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

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

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--primary);
      background-color: var(--primary-light);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }

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

    /* 平台核心能力卡片 */
    .pillar-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pillar-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .pillar-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .pillar-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

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

    /* 服务矩阵展格 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 20px;
    }

    .service-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

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

    .service-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
    }

    .service-badge {
      font-size: 0.75rem;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      background-color: var(--accent-light);
      color: var(--accent);
    }

    .service-name {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .service-summary {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 模型矩阵胶囊标签 */
    .model-capsules {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 36px;
      padding: 24px;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
    }

    .model-pill {
      font-size: 0.84rem;
      padding: 6px 14px;
      border-radius: 999px;
      background-color: var(--bg-page);
      border: 1px solid var(--border-color);
      color: var(--text-main);
      font-weight: 600;
      transition: var(--transition);
    }

    .model-pill:hover {
      background-color: var(--primary-light);
      border-color: var(--primary);
      color: var(--primary);
      transform: scale(1.04);
    }

    /* 对比评测高亮板 */
    .rating-banner {
      background: linear-gradient(135deg, #1e293b, #0f172a);
      border-radius: var(--radius);
      padding: 32px 40px;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      margin-bottom: 32px;
      box-shadow: var(--shadow-md);
    }

    .rating-info h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: #ffffff;
    }

    .rating-info p {
      color: #cbd5e1;
      font-size: 0.95rem;
    }

    .rating-scores {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .score-group {
      text-align: center;
    }

    .score-stars {
      color: #fbbf24;
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: 2px;
    }

    .score-digits {
      font-size: 2.4rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1;
    }

    .score-sub {
      font-size: 0.78rem;
      color: #94a3b8;
      margin-top: 4px;
    }

    /* 对比评测表格 */
    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      background-color: #ffffff;
      box-shadow: var(--shadow-sm);
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

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

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

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

    .eval-table tr:hover td {
      background-color: #f1f5f9;
    }

    .col-highlight {
      background-color: rgba(37, 99, 235, 0.03);
      font-weight: 600;
      color: var(--primary);
    }

    .eval-tag-good {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 600;
      background-color: #dcfce7;
      color: var(--success);
    }

    .eval-tag-bad {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 600;
      background-color: #fee2e2;
      color: #dc2626;
    }

    /* 流程步骤 */
    .step-track {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .step-node {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 16px;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

    .step-node:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }

    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px auto;
      font-size: 0.95rem;
    }

    .step-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.45;
    }

    /* 案例展示区（含图片规范） */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

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

    .case-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .case-img-box {
      width: 100%;
      height: 240px;
      background-color: #f1f5f9;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

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

    .case-body {
      padding: 20px;
    }

    .case-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 8px;
    }

    .case-type {
      font-size: 0.78rem;
      color: var(--primary);
      font-weight: 700;
      background-color: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
    }

    .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;
    }

    /* 宣传条幅区 */
    .banner-featured {
      margin-top: 36px;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .banner-featured img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

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

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

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

    .token-badge-hot {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 10px;
      border-radius: 999px;
    }

    .token-model-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .token-official-price {
      font-size: 0.88rem;
      color: var(--text-sub);
      text-decoration: line-through;
      margin-bottom: 6px;
    }

    .token-our-price {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .token-feature-list {
      list-style: none;
      text-align: left;
      margin: 18px 0;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .token-feature-list li {
      font-size: 0.88rem;
      color: var(--text-muted);
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .token-feature-list li::before {
      content: "✓";
      color: var(--success);
      font-weight: 800;
    }

    /* 客户真实评价 (6条) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .testimonial-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .testi-quote {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

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

    .testi-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background-color: var(--primary-light);
      color: var(--primary);
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }

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

    .testi-role {
      font-size: 0.78rem;
      color: var(--text-sub);
    }

    /* FAQ 折叠面板 (>=10项) */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-question {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 18px 24px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 400;
      color: var(--primary);
      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 cubic-bezier(0, 1, 0, 1);
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding-bottom: 20px;
      transition: max-height 0.3s ease-in-out;
    }

    /* 表单与需求匹配区 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: start;
    }

    .contact-info-panel {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .contact-lead {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .contact-intro {
      font-size: 0.94rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }

    .contact-direct-list {
      list-style: none;
      margin-bottom: 24px;
    }

    .contact-direct-list li {
      font-size: 0.92rem;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .contact-direct-list strong {
      color: var(--primary);
      min-width: 80px;
    }

    .contact-qr-wrapper {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 16px;
      background-color: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
    }

    .contact-qr-wrapper img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 6px;
    }

    .qr-text h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 4px;
      color: var(--text-main);
    }

    .qr-text p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* 需求表单 */
    .form-panel {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

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

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.92rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    }

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

    /* 加盟代理模块 */
    .partner-banner {
      background: linear-gradient(135deg, #eff6ff 0%, #ede9fe 100%);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius);
      padding: 40px;
      text-align: center;
      margin-bottom: 48px;
    }

    .partner-banner h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .partner-banner p {
      max-width: 720px;
      margin: 0 auto 24px auto;
      font-size: 1rem;
      color: var(--text-muted);
    }

    /* 行业资讯 & 最新文章 */
    .articles-section {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
      margin-top: 24px;
    }

    .article-item-link {
      display: block;
      padding: 16px;
      background-color: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      color: var(--text-main);
      font-size: 0.9rem;
      font-weight: 600;
      transition: var(--transition);
    }

    .article-item-link:hover {
      border-color: var(--primary);
      background-color: #ffffff;
      color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    /* 友情链接 */
    .friends-box {
      margin-top: 48px;
      padding: 20px;
      border-radius: var(--radius-sm);
      background-color: #ffffff;
      border: 1px solid var(--border-color);
    }

    .friends-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

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

    .friends-list a {
      font-size: 0.84rem;
      color: var(--text-muted);
      padding: 4px 10px;
      background-color: var(--bg-page);
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    .friends-list a:hover {
      color: var(--primary);
      border-color: var(--primary);
    }

    /* 页脚 */
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 32px 0;
      color: var(--text-muted);
      font-size: 0.88rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col-about p {
      margin-top: 12px;
      line-height: 1.6;
      max-width: 340px;
      font-size: 0.85rem;
    }

    .footer-col h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 8px;
    }

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

    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.82rem;
      color: var(--text-sub);
    }

    /* 悬浮工具 */
    .floating-tools {
      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-color: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text-main);
      font-size: 1.1rem;
      transition: var(--transition);
    }

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

    /* 响应式调整 */
    @media (max-width: 992px) {
      .pillar-grid,
      .token-grid,
      .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-track {
        grid-template-columns: repeat(3, 1fr);
      }
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background-color: #ffffff;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 16px 20px;
        gap: 0;
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        width: 100%;
        padding: 10px 14px;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 1.85rem;
      }
      .pillar-grid,
      .token-grid,
      .testimonial-grid,
      .case-grid,
      .step-track,
      .hero-metrics-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        padding: 24px;
        flex-direction: column;
        align-items: flex-start;
      }
      .rating-scores {
        width: 100%;
        justify-content: space-between;
      }
      .nav-cta .btn {
        padding: 8px 14px;
        font-size: 0.85rem;
      }
    }