:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --secondary: #06b6d4;
      --accent-coral: #ff5e62;
      --accent-gold: #f59e0b;
      --accent-violet: #8b5cf6;
      --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #06b6d4 100%);
      --gradient-warm: linear-gradient(135deg, #ff5e62 0%, #ff9966 100%);
      --gradient-card-top: linear-gradient(90deg, #4f46e5, #06b6d4);
      --bg-body: #f8fafc;
      --bg-surface: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-sub: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #818cf8;
      --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 36px -4px rgba(15, 23, 42, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* 全局统一居中容器 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部通栏导航 */
    .header-nav-wrap {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.85);
      transition: all 0.25s ease;
    }

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

    .brand-group {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .brand-logo-box {
      display: flex;
      align-items: center;
      height: 44px;
    }

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

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.2;
      letter-spacing: -0.5px;
    }

    .brand-tag {
      font-size: 0.75rem;
      color: var(--primary);
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    /* 导航栏规则：严格 .nav-links gap 为 0，不多于10个栏目 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .nav-links li {
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      display: inline-block;
      padding: 8px 11px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-muted);
      text-decoration: none;
      border-radius: var(--radius-sm);
      transition: color 0.2s ease, background-color 0.2s ease;
      white-space: nowrap;
    }

    .nav-links a:hover {
      color: var(--primary);
      background-color: rgba(79, 70, 229, 0.06);
    }

    .header-actions {
      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-full);
      text-decoration: none;
      transition: all 0.25s ease;
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-gradient {
      background: var(--gradient-brand);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    }

    .btn-gradient:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
      color: #ffffff;
    }

    .btn-warm {
      background: var(--gradient-warm);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 94, 98, 0.35);
    }

    .btn-warm:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 94, 98, 0.45);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: rgba(79, 70, 229, 0.04);
    }

    .btn-sm {
      padding: 6px 14px;
      font-size: 0.85rem;
    }

    .btn-lg {
      padding: 14px 28px;
      font-size: 1.05rem;
    }

    /* 移动端菜单切换按钮 */
    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px 10px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      color: var(--text-main);
    }

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

    .section-head {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px auto;
    }

    .badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 14px;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      border: 1px solid rgba(79, 70, 229, 0.16);
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 Hero 区域：严禁出现任何图片，纯 CSS 科技感视觉 */
    .hero-section {
      padding: 60px 0 80px 0;
      background: radial-gradient(circle at 85% 15%, rgba(6, 182, 212, 0.12) 0%, transparent 45%),
                  radial-gradient(circle at 15% 45%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-content {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: linear-gradient(90deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.12));
      border: 1px solid rgba(79, 70, 229, 0.2);
      border-radius: var(--radius-full);
      color: var(--primary);
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.25);
    }

    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.22;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -1px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 620px;
    }

    .hero-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      width: 100%;
      padding-top: 24px;
      border-top: 1px solid var(--border-color);
    }

    .metric-item {
      display: flex;
      flex-direction: column;
    }

    .metric-value {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.15;
    }

    .metric-label {
      font-size: 0.82rem;
      color: var(--text-sub);
      font-weight: 600;
      margin-top: 4px;
    }

    /* 首屏纯 CSS 交互卡片组 (无图) */
    .hero-visual-card {
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .hero-visual-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 5px;
      border-radius: var(--radius-lg) var(--radius-lg) 0 0;
      background: var(--gradient-brand);
    }

    .visual-card-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      background: #ecfdf5;
      color: #047857;
      border-radius: var(--radius-full);
      font-size: 0.78rem;
      font-weight: 700;
    }

    .status-pill-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #10b981;
    }

    .model-chip-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-bottom: 24px;
    }

    .model-chip {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px;
      transition: transform 0.2s ease, border-color 0.2s ease;
    }

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

    .model-chip-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .model-chip-speed {
      font-size: 0.72rem;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 2px 6px;
      border-radius: 4px;
    }

    .model-chip-desc {
      font-size: 0.75rem;
      color: var(--text-sub);
      margin-top: 4px;
    }

    .console-preview {
      background: #0f172a;
      color: #e2e8f0;
      border-radius: var(--radius-md);
      padding: 16px;
      font-family: monospace;
      font-size: 0.8rem;
      line-height: 1.6;
    }

    .console-line-accent {
      color: #38bdf8;
    }

    .console-line-green {
      color: #4ade80;
    }

    /* 品牌支持大模型标签栏 */
    .partners-band {
      background: #ffffff;
      padding: 28px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .partners-inner {
      display: flex;
      flex-direction: column;
      gap: 14px;
      align-items: center;
    }

    .partners-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-sub);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .ticker-wrapper {
      width: 100%;
      overflow: hidden;
      white-space: nowrap;
      position: relative;
    }

    .ticker-content {
      display: inline-flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .ticker-tag {
      background: var(--bg-alt);
      color: var(--text-muted);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 0.82rem;
      font-weight: 600;
      transition: all 0.2s ease;
    }

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

    /* 平台介绍板块 */
    .platform-intro-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .card-feature {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      position: relative;
      overflow: hidden;
    }

    .card-feature:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(79, 70, 229, 0.3);
    }

    .card-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.15));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.25rem;
      margin-bottom: 20px;
    }

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

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

    /* AIGC 服务与一站式制作卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .service-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.2s ease, border-color 0.2s ease;
    }

    .service-card:hover {
      transform: translateY(-3px);
      border-color: var(--secondary);
    }

    .service-badge {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--secondary);
      background: rgba(6, 182, 212, 0.1);
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      align-self: flex-start;
      margin-bottom: 12px;
    }

    /* 行业方案展示卡片 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .solution-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }

    .solution-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
      transform: translateY(-3px);
    }

    .solution-header {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 10px;
    }

    .solution-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--gradient-brand);
    }

    .solution-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* 流程步骤 */
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }

    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1;
      margin-bottom: 14px;
    }

    /* 对比评测表格与卡片 */
    .compare-container {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .review-score-hero {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.06), rgba(6, 182, 212, 0.08));
      border: 1px solid rgba(79, 70, 229, 0.15);
      border-radius: var(--radius-md);
      padding: 24px 30px;
      margin-bottom: 32px;
    }

    .score-left {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-num {
      font-size: 3.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-info h4 {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

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

    .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 var(--border-color);
    }

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

    .compare-table td.highlight-col {
      background-color: rgba(79, 70, 229, 0.03);
      color: var(--primary);
      font-weight: 700;
      border-left: 1px solid rgba(79, 70, 229, 0.15);
      border-right: 1px solid rgba(79, 70, 229, 0.15);
    }

    /* 案例展示区 (含图片) */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 36px;
    }

    .case-media-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .case-img-box {
      width: 100%;
      height: 220px;
      background-color: #e2e8f0;
      overflow: hidden;
      position: relative;
    }

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

    .case-media-card:hover .case-img-box img {
      transform: scale(1.04);
    }

    .case-content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

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

    .materials-row {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
    }

    .material-box {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      padding: 16px;
    }

    .material-box img {
      width: 100%;
      height: auto;
      max-height: 280px;
      object-fit: cover;
      border-radius: var(--radius-sm);
      display: block;
    }

    .material-caption {
      margin-top: 12px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
      text-align: center;
    }

    /* 用户评论卡片 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .review-text {
      font-size: 0.94rem;
      color: var(--text-main);
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: normal;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }

    .user-avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
    }

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

    .user-meta-role {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    /* Token 比价板块 */
    .pricing-table-wrap {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-md);
    }

    /* 需求匹配与联系我们表单 */
    .form-section-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: flex-start;
    }

    .form-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      font-family: inherit;
      color: var(--text-main);
      background-color: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s ease, background-color 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

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

    .contact-info-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 22px;
    }

    .contact-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-sm);
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      flex-shrink: 0;
    }

    .contact-detail h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 2px;
    }

    .contact-detail p {
      font-size: 0.88rem;
      color: var(--text-muted);
      word-break: break-all;
    }

    .qr-box {
      margin-top: 24px;
      padding: 20px;
      background: var(--bg-alt);
      border-radius: var(--radius-md);
      text-align: center;
      border: 1px dashed var(--border-color);
    }

    .qr-box img {
      width: 140px;
      height: 140px;
      object-fit: contain;
      border-radius: var(--radius-sm);
      display: block;
      margin: 0 auto 10px auto;
      background: #fff;
    }

    .qr-box span {
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }

    .faq-item:hover {
      border-color: rgba(79, 70, 229, 0.4);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-family: inherit;
    }

    .faq-icon {
      font-size: 1.25rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafafa;
      color: var(--text-muted);
      font-size: 0.94rem;
      line-height: 1.65;
    }

    .faq-answer-inner {
      padding: 0 24px 20px 24px;
    }

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

    .faq-item.active .faq-answer {
      max-height: 280px;
    }

    /* 行业资讯与文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 24px;
    }

    .article-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-link {
      color: var(--primary);
      font-weight: 700;
      text-decoration: none;
      font-size: 1.02rem;
      margin-bottom: 10px;
      display: inline-block;
    }

    .article-link:hover {
      text-decoration: underline;
    }

    /* 加盟代理模块 */
    .agent-cta-box {
      background: linear-gradient(135deg, #4f46e5 0%, #1e1b4b 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 48px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
      box-shadow: var(--shadow-lg);
    }

    .agent-cta-box h3 {
      font-size: 2.1rem;
      font-weight: 800;
      margin-bottom: 14px;
      line-height: 1.25;
    }

    .agent-cta-box p {
      color: #cbd5e1;
      font-size: 1.02rem;
      line-height: 1.6;
      margin-bottom: 24px;
    }

    .agent-points {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-bottom: 24px;
    }

    .agent-point-item {
      font-size: 0.88rem;
      color: #f1f5f9;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 页脚与友情链接规范 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 1px solid #1e293b;
    }

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

    .footer-col h5 {
      color: #f8fafc;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.88rem;
      line-height: 1.6;
      margin-bottom: 16px;
    }

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

    .footer-links-list a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s ease;
    }

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

    .friend-links-band {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-bottom: 28px;
    }

    .friend-links-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: #cbd5e1;
      margin-bottom: 12px;
    }

    .friend-links-items {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-items a {
      color: #94a3b8;
      font-size: 0.84rem;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .friend-links-items a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 14px;
      font-size: 0.82rem;
      color: #64748b;
    }

    /* 浮动客服小工具 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 990;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
      cursor: pointer;
      text-decoration: none;
      border: none;
      transition: transform 0.2s ease;
      font-size: 1.15rem;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* 响应式样式适配 */
    @media (max-width: 1080px) {
      .services-grid,
      .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-lg);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 12px 14px;
      }
      .mobile-toggle {
        display: block;
      }
      .header-actions .btn-sm {
        display: none;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
      .platform-intro-grid,
      .cases-grid,
      .reviews-grid,
      .articles-grid,
      .form-section-grid,
      .agent-cta-box,
      .materials-row {
        grid-template-columns: 1fr;
      }
      .hero-metrics {
        grid-template-columns: 1fr;
        gap: 14px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .compare-container {
        padding: 20px;
      }
      .review-score-hero {
        flex-direction: column;
        align-items: flex-start;
      }
    }