:root {
      --primary: #1d4ed8;
      --primary-hover: #1e40af;
      --primary-light: #eff6ff;
      --accent-blue: #2563eb;
      --vibrant-cyan: #0284c7;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --border-hover: #cbd5e1;
      --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
      --shadow-md: 0 4px 12px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
      --shadow-lg: 0 12px 28px -4px rgba(29, 78, 216, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --max-width: 1200px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--primary-hover);
    }

    .container {
      width: 100%;
      max-width: var(--max-width);
      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, 0.96);
      backdrop-filter: blur(10px);
      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-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-text-block {
      display: flex;
      flex-direction: column;
    }

    .brand-name {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.2px;
      line-height: 1.2;
    }

    .brand-sub {
      font-size: 0.72rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

    /* 严格遵循规范，gap 设为 0 */
    .nav-links {
      display: flex;
      list-style: none;
      align-items: center;
      gap: 0;
    }

    .nav-links li a,
    .ai-page-home-link {
      display: block;
      padding: 8px 12px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .ai-page-home-link:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: 0 2px 8px rgba(29, 78, 216, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      color: #ffffff;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(29, 78, 216, 0.35);
    }

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

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

    .btn-large {
      padding: 13px 26px;
      font-size: 1.05rem;
      border-radius: var(--radius-md);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 6px 10px;
      border-radius: 6px;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 模块通用样式 */
    section {
      padding: 72px 0;
      position: relative;
    }

    .section-bg-alt {
      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 44px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 12px;
      background-color: var(--primary-light);
      color: var(--primary);
      font-size: 0.8rem;
      font-weight: 700;
      border-radius: 30px;
      margin-bottom: 10px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 1.95rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 HERO（纯 CSS 渐变几何，严禁出现图片） */
    .hero-section {
      background: radial-gradient(100% 80% at 50% 0%, #e0edff 0%, #f0f6ff 50%, #f8fafc 100%);
      padding: 88px 0 76px;
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: "";
      position: absolute;
      top: -100px;
      left: 50%;
      transform: translateX(-50%);
      width: 700px;
      height: 350px;
      background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
      z-index: 0;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: #ffffff;
      border: 1px solid #bfdbfe;
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--primary);
      box-shadow: 0 2px 6px rgba(37, 99, 235, 0.08);
      margin-bottom: 22px;
    }

    .hero-badge .dot {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      animation: pulseDot 2s infinite;
    }

    @keyframes pulseDot {
      0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
      100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* H1 要求控制在20字以内 */
    .hero-title {
      font-size: 2.65rem;
      font-weight: 900;
      line-height: 1.25;
      color: #0b1f44;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      color: var(--primary);
      background: linear-gradient(135deg, #1d4ed8 0%, #0284c7 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.12rem;
      color: var(--text-muted);
      max-width: 740px;
      margin: 0 auto 34px;
      line-height: 1.65;
    }

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

    .btn-portal {
      background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
      color: #ffffff;
      box-shadow: 0 6px 18px rgba(29, 78, 216, 0.3);
      font-size: 1.05rem;
      padding: 13px 30px;
      border-radius: var(--radius-md);
      font-weight: 700;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .btn-portal:hover {
      background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
      color: #ffffff;
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(29, 78, 216, 0.4);
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 10px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px 12px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .metric-card:hover {
      transform: translateY(-3px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-md);
    }

    .metric-val {
      font-size: 1.65rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
      margin-bottom: 4px;
    }

    .metric-lbl {
      font-size: 0.82rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

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

    .about-info p {
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--text-main);
    }

    .feature-item-icon {
      flex-shrink: 0;
      width: 20px;
      height: 20px;
      background-color: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 800;
      margin-top: 2px;
    }

    .about-visual-card {
      background: linear-gradient(145deg, #ffffff 0%, #f0f7ff 100%);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-md);
    }

    .model-tags-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-chip {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 5px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    /* AIGC核心服务矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: #93c5fd;
    }

    .service-icon-box {
      width: 44px;
      height: 44px;
      background-color: var(--primary-light);
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      margin-bottom: 16px;
    }

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

    .service-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    .service-badge {
      display: inline-block;
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--primary);
      background-color: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 一站式创作场景展示 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .scene-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px;
      transition: var(--transition);
    }

    .scene-item:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
    }

    .scene-head {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .scene-body {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 行业解决方案与素材融合 */
    .industry-section-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      align-items: center;
    }

    .solution-card-group {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .solution-item {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      transition: var(--transition);
    }

    .solution-item:hover {
      border-color: var(--accent-blue);
      box-shadow: var(--shadow-sm);
    }

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

    .solution-desc {
      font-size: 0.86rem;
      color: var(--text-muted);
    }

    .media-card-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .media-card-box {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 10px;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

    .media-card-box img {
      width: 100%;
      height: 150px;
      object-fit: cover;
      border-radius: 6px;
      display: block;
      margin-bottom: 8px;
    }

    .media-card-caption {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-main);
    }

    /* 服务网络与覆盖 */
    .network-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      text-align: center;
    }

    .network-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 24px;
    }

    .network-node {
      border: 1px dashed var(--border-color);
      padding: 18px 12px;
      border-radius: var(--radius-md);
      background-color: var(--bg-page);
    }

    .network-city {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .network-detail {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 标准流程 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      position: relative;
    }

    .timeline-step {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .timeline-number {
      width: 32px;
      height: 32px;
      background-color: var(--primary);
      color: #ffffff;
      font-weight: 800;
      font-size: 0.95rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
    }

    .timeline-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .timeline-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 案例中心展示 */
    .case-banner-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 24px;
    }

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

    .case-banner-item img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      display: block;
    }

    .case-banner-info {
      padding: 18px;
    }

    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
      display: inline-block;
    }

    .case-heading {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .case-summary {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测（重点要求） */
    .eval-score-card {
      background: linear-gradient(135deg, #1d4ed8 0%, #1e3a8a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 30px 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      box-shadow: var(--shadow-lg);
    }

    .eval-score-left h3 {
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .eval-score-left p {
      font-size: 0.92rem;
      opacity: 0.9;
    }

    .eval-score-right {
      text-align: right;
    }

    .eval-stars {
      color: #fbbf24;
      font-size: 1.3rem;
      margin-bottom: 4px;
      letter-spacing: 2px;
    }

    .eval-num {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1;
    }

    .eval-num span {
      font-size: 1rem;
      opacity: 0.8;
      font-weight: 500;
    }

    .table-container {
      background-color: #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;
      font-size: 0.9rem;
    }

    .comparison-table th, 
    .comparison-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background-color: #f1f5f9;
      font-weight: 700;
      color: var(--text-main);
    }

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

    .comparison-table .highlight-col {
      background-color: #eff6ff;
      color: var(--primary);
      font-weight: 700;
    }

    .tag-yes {
      display: inline-block;
      background-color: #dcfce7;
      color: #15803d;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
      font-size: 0.8rem;
    }

    /* Token 比价板块 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

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

    .token-card.featured {
      border-color: var(--primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.02);
    }

    .token-badge-top {
      position: absolute;
      top: -11px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--primary);
      color: #ffffff;
      padding: 2px 12px;
      font-size: 0.75rem;
      border-radius: 12px;
      font-weight: 700;
    }

    .token-tier-name {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 2.1rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .token-price span {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 400;
    }

    .token-savings {
      font-size: 0.82rem;
      color: #059669;
      font-weight: 600;
      background-color: #ecfdf5;
      padding: 4px 10px;
      border-radius: 20px;
      display: inline-block;
      margin-bottom: 18px;
    }

    .token-features-list {
      list-style: none;
      text-align: left;
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 22px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .token-features-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
      margin-right: 8px;
    }

    /* 智能需求匹配与表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .contact-info-block h3 {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .contact-info-block p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 22px;
    }

    .contact-meta-group {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-size: 0.9rem;
      color: var(--text-main);
      margin-bottom: 24px;
    }

    .contact-meta-item {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qr-container {
      background-color: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px;
      display: inline-flex;
      align-items: center;
      gap: 16px;
    }

    .qr-container img {
      width: 90px;
      height: 90px;
      border-radius: 6px;
      display: block;
    }

    .qr-text-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.4;
    }

    .qr-text-label span {
      display: block;
      font-size: 0.78rem;
      color: var(--text-muted);
      font-weight: 400;
      margin-top: 4px;
    }

    /* 表单控件 */
    .form-group {
      margin-bottom: 16px;
    }

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

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      background-color: #fdfdfd;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.15);
      background-color: #ffffff;
    }

    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    /* 用户评论卡片（6条） */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .testimonial-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .testimonial-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #93c5fd;
    }

    .testimonial-stars {
      color: #fbbf24;
      font-size: 0.85rem;
      margin-bottom: 10px;
    }

    .testimonial-quote {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
      font-style: normal;
    }

    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 10px;
      border-top: 1px solid #f1f5f9;
      padding-top: 12px;
    }

    .author-avatar {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, #1d4ed8, #60a5fa);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.85rem;
    }

    .author-info-name {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-info-role {
      font-size: 0.75rem;
      color: var(--text-light);
    }

    /* FAQ 折叠面板（12条） */
    .faq-accordion {
      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-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: #93c5fd;
    }

    .faq-question {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 16px 20px;
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-family: inherit;
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      padding: 0 20px;
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.65;
      background-color: #fcfdfe;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 20px 16px 20px;
      transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
    }

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

    /* 加盟代理板块 */
    .agent-banner-box {
      background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 30px;
      align-items: center;
    }

    .agent-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: #ffffff;
    }

    .agent-text p {
      font-size: 0.95rem;
      color: #cbd5e1;
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .agent-perk-item {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 12px;
      font-size: 0.85rem;
      color: #e2e8f0;
    }

    .agent-perk-item strong {
      display: block;
      color: #60a5fa;
      font-size: 0.92rem;
      margin-bottom: 2px;
    }

    /* 行业资讯与最新文章 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .news-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .news-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: #93c5fd;
    }

    .news-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .news-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .news-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    .news-link {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 友情链接与底部 */
    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 32px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

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

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

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

    .footer-links-wrap a {
      background-color: var(--bg-page);
      border: 1px solid var(--border-color);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .footer-links-wrap a:hover {
      background-color: var(--primary-light);
      color: var(--primary);
      border-color: #bfdbfe;
    }

    .footer-bottom-bar {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.84rem;
      color: var(--text-light);
    }

    /* 浮动操作栏 */
    .floating-actions {
      position: fixed;
      right: 20px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      box-shadow: var(--shadow-md);
      cursor: pointer;
      transition: var(--transition);
      font-size: 1.1rem;
    }

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

    .float-qr-popup {
      position: absolute;
      right: 58px;
      bottom: 56px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      display: none;
      width: 150px;
      text-align: center;
    }

    .float-qr-popup img {
      width: 126px;
      height: 126px;
      display: block;
      margin: 0 auto 6px;
    }

    .float-qr-popup span {
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--text-main);
    }

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

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .services-grid,
      .testimonials-grid,
      .token-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .scene-grid,
      .network-grid,
      .process-timeline,
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
      .about-grid,
      .industry-section-box,
      .contact-wrapper,
      .agent-banner-box {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        display: none;
        padding: 16px 20px;
      }
      .nav-menu.open {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
      }
      .nav-links li,
      .nav-links li a,
      .ai-page-home-link {
        width: 100%;
        padding: 10px 0;
      }
      .nav-actions {
        margin-left: 0;
        margin-top: 14px;
        width: 100%;
      }
      .nav-actions .btn {
        width: 100%;
      }
      .hero-title {
        font-size: 1.95rem;
      }
      .services-grid,
      .testimonials-grid,
      .token-grid,
      .news-grid,
      .scene-grid,
      .network-grid,
      .process-timeline,
      .hero-metrics,
      .case-banner-grid,
      .media-card-wrap {
        grid-template-columns: 1fr;
      }
      .eval-score-card {
        flex-direction: column;
        text-align: center;
        gap: 16px;
      }
      .eval-score-right {
        text-align: center;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .agent-perks {
        grid-template-columns: 1fr;
      }
    }