/* 全局与极致鲜亮风变量体系 */
    :root {
      --primary: #0062ff;
      --primary-light: #e8f1ff;
      --primary-hover: #004ed6;
      --accent: #00d2ff;
      --vibrant-orange: #ff5722;
      --vibrant-gradient: linear-gradient(135deg, #0052ff 0%, #00d2ff 100%);
      --warm-gradient: linear-gradient(135deg, #ff7a00 0%, #ff3d00 100%);
      --bg-page: #f8fbff;
      --bg-card: #ffffff;
      --bg-alt: #f0f6ff;
      --text-main: #0c1a30;
      --text-body: #334155;
      --text-muted: #64748b;
      --border-color: #e2eaf4;
      --card-shadow: 0 10px 30px rgba(0, 98, 255, 0.06);
      --card-hover-shadow: 0 18px 40px rgba(0, 98, 255, 0.12);
      --container-width: 1200px;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --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", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.65;
      overflow-x: hidden;
      min-height: 100vh;
    }

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

    ul, ol {
      list-style: none;
    }

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

    /* 统一主容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 模块通用样式 */
    .section-block {
      padding: 80px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-alt);
    }

    .section-header {
      text-align: center;
      margin-bottom: 50px;
    }

    .badge-tag {
      display: inline-block;
      padding: 6px 16px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 0.875rem;
      font-weight: 600;
      border-radius: 50px;
      margin-bottom: 14px;
      border: 1px solid rgba(0, 98, 255, 0.15);
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto;
    }

    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 13px 30px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 50px;
      cursor: pointer;
      transition: var(--transition);
      border: none;
      text-align: center;
    }

    .btn-primary {
      background: var(--vibrant-gradient);
      color: #ffffff;
      box-shadow: 0 8px 24px rgba(0, 98, 255, 0.28);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(0, 98, 255, 0.4);
      color: #ffffff;
    }

    .btn-orange {
      background: var(--warm-gradient);
      color: #ffffff;
      box-shadow: 0 8px 24px rgba(255, 87, 34, 0.3);
    }

    .btn-orange:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 87, 34, 0.45);
      color: #ffffff;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

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

    .brand-text {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      display: flex;
      align-items: center;
    }

    .brand-text span {
      color: var(--primary);
      margin-left: 4px;
    }

    /* 规则严格执行：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-item-link {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.94rem;
      font-weight: 500;
      color: var(--text-body);
      border-radius: var(--radius-sm);
    }

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

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.6rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 一、首屏 Hero 区域：无任何图片，纯高亮科技感 */
    .hero-section {
      padding: 90px 0 80px;
      background: radial-gradient(circle at 80% 20%, #dbeaff 0%, #edf4fe 40%, #f8fbff 100%);
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      background: #e0eeff;
      border: 1px solid #bed8ff;
      border-radius: 30px;
      color: #0052ff;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      margin-right: 8px;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
    }

    /* H1 要求改写且20字以内 */
    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: var(--vibrant-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.12rem;
      color: var(--text-body);
      margin-bottom: 34px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 30px;
    }

    .hero-trust-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      font-size: 0.88rem;
      color: var(--text-muted);
      border-top: 1px dashed #d1e2f6;
      padding-top: 22px;
    }

    .hero-trust-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .hero-trust-item svg {
      width: 16px;
      height: 16px;
      fill: #10b981;
    }

    /* 首屏纯CSS科技数据面板（不使用任何图片） */
    .hero-tech-card {
      background: #ffffff;
      border: 1px solid #d4e4fa;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: 0 20px 45px rgba(0, 98, 255, 0.08);
      position: relative;
    }

    .tech-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

    .tech-card-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .pulse-status {
      display: inline-flex;
      align-items: center;
      font-size: 0.8rem;
      color: #059669;
      background: #ecfdf5;
      padding: 4px 10px;
      border-radius: 20px;
      font-weight: 600;
    }

    .tech-stat-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }

    .tech-stat-box {
      background: #f8fbff;
      border: 1px solid #e1ecfa;
      border-radius: var(--radius-md);
      padding: 16px;
      transition: var(--transition);
    }

    .tech-stat-box:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .tech-stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 6px;
    }

    .tech-stat-num {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
    }

    .tech-pipeline {
      background: #f1f7fe;
      border-radius: var(--radius-md);
      padding: 16px;
      font-size: 0.88rem;
    }

    .pipeline-step {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
      color: var(--text-main);
      font-weight: 500;
    }

    .pipeline-step:last-child {
      margin-bottom: 0;
    }

    .pipeline-bullet {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 700;
      flex-shrink: 0;
    }

    /* 数据指标栏 */
    .metric-strip {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 30px 0;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-value {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .metric-value span {
      color: var(--vibrant-orange);
    }

    .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    /* 平台介绍 */
    .platform-intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .platform-intro-text p {
      font-size: 1.05rem;
      color: var(--text-body);
      margin-bottom: 18px;
    }

    .intro-feature-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 26px;
    }

    .intro-feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 18px;
      border-radius: var(--radius-md);
      box-shadow: var(--card-shadow);
    }

    .intro-feature-card h4 {
      font-size: 1rem;
      color: var(--text-main);
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .intro-feature-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 0;
    }

    /* AIGC 服务矩阵卡片 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--card-hover-shadow);
      border-color: #bad6ff;
    }

    .service-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

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

    .service-card-desc {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 18px;
    }

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

    .service-tag-item {
      font-size: 0.78rem;
      padding: 4px 10px;
      background: #f1f5f9;
      border-radius: 20px;
      color: #475569;
    }

    /* 一站式制作场景一览 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: var(--transition);
    }

    .scenario-card:hover {
      border-color: var(--accent);
      box-shadow: var(--card-hover-shadow);
    }

    .scenario-card h3 {
      font-size: 1.08rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .scenario-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 对比评测 - 满分10分，9.9分推荐 */
    .review-score-hero {
      background: linear-gradient(135deg, #0b1a30 0%, #15325b 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 35px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      box-shadow: 0 15px 35px rgba(11, 26, 48, 0.2);
    }

    .score-left h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: #ffffff;
    }

    .score-left p {
      color: #cbd5e1;
      font-size: 1rem;
      max-width: 650px;
    }

    .score-right {
      text-align: center;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 20px 36px;
    }

    .score-number {
      font-size: 3.2rem;
      font-weight: 900;
      color: #ffb703;
      line-height: 1;
    }

    .score-scale {
      font-size: 1rem;
      color: #94a3b8;
    }

    .score-stars {
      color: #ffb703;
      font-size: 1.25rem;
      margin-top: 6px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #edf2f7;
    }

    .compare-table th {
      background: #f8fbff;
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table td.highlight {
      background: #f0f7ff;
      color: var(--primary);
      font-weight: 700;
    }

    /* 行业方案展示与素材图 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .industry-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #eaeff5;
    }

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

    .industry-card:hover .industry-img-wrap img {
      transform: scale(1.04);
    }

    .industry-body {
      padding: 24px;
    }

    .industry-body h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .industry-body p {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 宣传图画廊展示区 */
    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .banner-item img {
      width: 100%;
      height: 230px;
      object-fit: cover;
    }

    /* 模型矩阵与生态 */
    .model-tags-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 35px;
      box-shadow: var(--card-shadow);
    }

    .model-tags-flex {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 20px;
    }

    .model-pill {
      display: inline-flex;
      align-items: center;
      padding: 8px 18px;
      background: #f1f7fe;
      border: 1px solid #dbe8fa;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      transition: var(--transition);
    }

    .model-pill:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.05);
    }

    /* Token比价与算力优势 */
    .token-pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pricing-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 32px 26px;
      box-shadow: var(--card-shadow);
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: 0 16px 36px rgba(0, 98, 255, 0.14);
    }

    .pricing-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--warm-gradient);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 20px;
    }

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

    .pricing-price {
      font-size: 2.3rem;
      font-weight: 900;
      color: var(--primary);
      margin: 16px 0;
    }

    .pricing-price span {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-muted);
    }

    .pricing-features {
      text-align: left;
      margin: 22px 0 28px;
      font-size: 0.9rem;
      color: var(--text-body);
    }

    .pricing-features li {
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pricing-features li::before {
      content: "✓";
      color: #10b981;
      font-weight: 800;
    }

    /* 标准制作流程 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

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

    .step-num {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .flow-step-box h3 {
      font-size: 1.05rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .flow-step-box p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

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

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

    .case-content {
      padding: 22px;
    }

    .case-tag {
      font-size: 0.78rem;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 6px;
      text-transform: uppercase;
    }

    .case-content h3 {
      font-size: 1.12rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-content p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 用户评论 (6条) */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .review-text {
      font-size: 0.92rem;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 18px;
      font-style: italic;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

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

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

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

    /* 需求匹配与联系我们表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.25fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .contact-info-block {
      background: #f8fbff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid #e1ebf7;
    }

    .contact-info-block h3 {
      font-size: 1.3rem;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .contact-detail-list {
      margin-top: 20px;
    }

    .contact-detail-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 0.92rem;
      color: var(--text-body);
    }

    .contact-detail-item strong {
      color: var(--text-main);
      min-width: 75px;
    }

    .qrcode-box {
      margin-top: 24px;
      text-align: center;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-sm);
      border: 1px dashed #cde0f7;
      display: inline-block;
    }

    .qrcode-box img {
      width: 130px;
      height: 130px;
      margin: 0 auto 8px;
      object-fit: cover;
    }

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

    /* 表单组件 */
    .form-group {
      margin-bottom: 18px;
    }

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

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition);
      outline: none;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 98, 255, 0.15);
    }

    .form-textarea {
      resize: vertical;
      min-height: 110px;
    }

    /* 常见问题 (FAQ 面板不少于 10 项) */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question:hover {
      background: #f8fbff;
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.28s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafcff;
      border-top: 1px solid transparent;
      padding: 0 24px;
      color: var(--text-body);
      font-size: 0.95rem;
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 16px 24px 20px;
      border-top-color: #eef3fa;
    }

    /* AI百科与资讯 */
    .articles-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
    }

    .article-links-wrap {
      background: #f8fbff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      margin-top: 24px;
    }

    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }

    .article-chip {
      display: inline-flex;
      align-items: center;
      padding: 8px 14px;
      background: #ffffff;
      border: 1px solid #d9e6f6;
      border-radius: 6px;
      font-size: 0.88rem;
      color: var(--primary);
      font-weight: 500;
    }

    .article-chip:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 加盟代理区块 */
    .agent-banner {
      background: linear-gradient(135deg, #02204c 0%, #06408e 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      display: grid;
      grid-template-columns: 1.3fr 0.7fr;
      gap: 30px;
      align-items: center;
      box-shadow: 0 15px 35px rgba(2, 32, 76, 0.25);
    }

    .agent-banner h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: #ffffff;
    }

    .agent-banner p {
      color: #e2e8f0;
      font-size: 1.05rem;
      margin-bottom: 24px;
      line-height: 1.65;
    }

    .agent-box-right {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
    }

    /* 友情链接与底部 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-body);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .footer-links li {
      margin-bottom: 10px;
      font-size: 0.9rem;
    }

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

    .friendly-links-strip {
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 20px 0;
      margin-bottom: 25px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.88rem;
    }

    .friendly-links-strip strong {
      color: var(--text-main);
    }

    .friendly-links-strip a {
      color: var(--text-muted);
      padding: 4px 10px;
      background: #f1f5f9;
      border-radius: 4px;
    }

    .friendly-links-strip a:hover {
      color: var(--primary);
      background: #e2eaf4;
    }

    .copyright-area {
      text-align: center;
      font-size: 0.88rem;
      color: var(--text-muted);
      padding-top: 15px;
    }

    /* 浮动客服挂件 */
    .float-widget {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #d4e2f4;
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary);
      font-size: 1.25rem;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-3px);
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .hero-grid, .platform-intro-grid, .contact-wrapper, .agent-banner {
        grid-template-columns: 1fr;
      }
      .service-grid, .industry-grid, .token-pricing-grid, .review-grid, .banner-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px 0;
        box-shadow: 0 10px 20px rgba(0,0,0,0.06);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-item-link {
        width: 100%;
        text-align: center;
        padding: 12px 0;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .service-grid, .scenario-grid, .industry-grid, .token-pricing-grid, .review-grid, .banner-gallery, .metric-grid, .flow-steps-grid {
        grid-template-columns: 1fr;
      }
      .review-score-hero {
        flex-direction: column;
        gap: 20px;
        text-align: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .contact-wrapper {
        padding: 24px;
      }
    }