:root {
      --primary: #1d4ed8;
      --primary-hover: #1e40af;
      --primary-light: #eff6ff;
      --primary-glow: rgba(29, 78, 216, 0.15);
      --accent: #2563eb;
      --accent-bright: #3b82f6;
      --cyan-tech: #0284c7;
      --text-main: #0f172a;
      --text-muted: #334155;
      --text-sub: #64748b;
      --bg-main: #f8fafc;
      --bg-white: #ffffff;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --border-light: #f1f5f9;
      --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.07);
      --shadow-lg: 0 16px 36px rgba(29, 78, 216, 0.09);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 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, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    .container {
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
      width: 100%;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
    }

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

    .brand-logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

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

    .brand-title-wrap {
      display: flex;
      flex-direction: column;
    }

    .brand-name {
      font-size: 1.18rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.02em;
      line-height: 1.2;
    }

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

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

    .nav-links li a {
      font-size: 0.94rem;
      font-weight: 600;
      color: var(--text-muted);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
      white-space: nowrap;
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .btn-nav-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-bright) 100%);
      border-radius: 999px;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
    }

    .btn-nav-portal:hover {
      box-shadow: 0 6px 18px rgba(37, 99, 235, 0.38);
      transform: translateY(-1px);
      color: #ffffff;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1.1rem;
      color: var(--text-main);
    }

    /* 首屏 Hero 无图片区 */
    .hero-section {
      position: relative;
      background: linear-gradient(145deg, #f0f7ff 0%, #e0f2fe 45%, #eff6ff 100%);
      padding: 72px 0 64px 0;
      border-bottom: 1px solid #dbeafe;
      overflow: hidden;
    }

    .hero-section::before {
      content: "";
      position: absolute;
      top: -120px;
      right: -80px;
      width: 480px;
      height: 480px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(59, 130, 246, 0.18) 0%, rgba(239, 246, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-section::after {
      content: "";
      position: absolute;
      bottom: -100px;
      left: -80px;
      width: 420px;
      height: 420px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(2, 132, 199, 0.12) 0%, rgba(239, 246, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: 999px;
      font-size: 0.86rem;
      font-weight: 700;
      color: var(--primary);
      box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
      margin-bottom: 24px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      color: #0b1f44;
      line-height: 1.25;
      letter-spacing: -0.03em;
      margin-bottom: 20px;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 820px;
      margin: 0 auto 36px auto;
    }

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

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 16px 36px;
      font-size: 1.08rem;
      font-weight: 800;
      color: #ffffff;
      background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 60%, #3b82f6 100%);
      border-radius: 12px;
      box-shadow: 0 8px 24px rgba(29, 78, 216, 0.35);
      border: none;
      cursor: pointer;
    }

    .btn-hero-primary:hover {
      box-shadow: 0 12px 28px rgba(29, 78, 216, 0.45);
      transform: translateY(-2px);
      color: #ffffff;
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 15px 32px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      background: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
    }

    .btn-hero-secondary:hover {
      background: #f8fafc;
      border-color: var(--primary);
      color: var(--primary-hover);
      transform: translateY(-2px);
    }

    /* 纯CSS/数字构筑的指标卡片（首屏无图片） */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      text-align: left;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid #dbeafe;
      border-radius: var(--radius-md);
      padding: 22px 20px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .hero-stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary);
      opacity: 0.8;
    }

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

    .stat-number-title {
      font-size: 1.55rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-text-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-sub);
    }

    /* 通用区块头 */
    .section-padding {
      padding: 84px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px auto;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 12px;
      border: 1px solid #bfdbfe;
    }

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

    .section-intro {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 关于我们 / 平台实力介绍 */
    .about-overview-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 42px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 40px;
    }

    .about-main-text {
      font-size: 1.12rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 32px;
    }

    .model-chips-container {
      background: #f8fafc;
      border: 1px dashed #cbd5e1;
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .model-chips-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    .model-chip {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      color: var(--primary);
      font-size: 0.82rem;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 6px;
      transition: var(--transition);
    }

    .model-chip:hover {
      background: var(--primary-light);
      border-color: var(--primary);
      transform: translateY(-1px);
    }

    .platform-core-four {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .core-four-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 22px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .core-four-card:hover {
      border-color: var(--accent-bright);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .core-four-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

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

    .core-four-desc {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* AIGC 服务与场景工坊矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .service-card-tag {
      font-size: 0.74rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
      align-self: flex-start;
    }

    .service-card-title {
      font-size: 1.18rem;
      font-weight: 750;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.35;
    }

    .service-card-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .service-card-feature {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--cyan-tech);
      border-top: 1px solid var(--border-light);
      padding-top: 12px;
    }

    /* 一站式制作与标准流程 */
    .workflow-steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-item-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: var(--transition);
    }

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

    .step-badge {
      font-size: 1.6rem;
      font-weight: 900;
      color: #93c5fd;
      line-height: 1;
      margin-bottom: 14px;
    }

    .step-item-title {
      font-size: 1.1rem;
      font-weight: 750;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-item-desc {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 行业解决方案 */
    .solutions-tabs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .solution-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 26px;
      box-shadow: var(--shadow-sm);
      border-top: 4px solid var(--primary);
      transition: var(--transition);
    }

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

    .solution-box-title {
      font-size: 1.22rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .solution-box-intro {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }

    .solution-points-list {
      list-style: none;
    }

    .solution-points-list li {
      position: relative;
      padding-left: 20px;
      font-size: 0.86rem;
      color: var(--text-sub);
      margin-bottom: 8px;
    }

    .solution-points-list li::before {
      content: "✔";
      position: absolute;
      left: 0;
      color: var(--primary);
      font-weight: bold;
    }

    /* 对比评测高光板块 */
    .comparison-highlight-panel {
      background: #ffffff;
      border: 2px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-lg);
      margin-bottom: 40px;
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
      color: #ffffff;
      padding: 26px 32px;
      border-radius: var(--radius-md);
      margin-bottom: 32px;
    }

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

    .rating-score-num {
      font-size: 3.2rem;
      font-weight: 900;
      line-height: 1;
      color: #fbbf24;
    }

    .rating-meta-wrap {
      display: flex;
      flex-direction: column;
    }

    .rating-stars {
      color: #fbbf24;
      font-size: 1.35rem;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .rating-meta-text {
      font-size: 0.95rem;
      color: #e0e7ff;
      font-weight: 500;
    }

    .rating-banner-right {
      text-align: right;
    }

    .rating-verdict-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .rating-verdict-desc {
      font-size: 0.88rem;
      color: #bfdbfe;
    }

    /* 对比表格 */
    .table-responsive-wrapper {
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 760px;
      background: #ffffff;
      text-align: left;
    }

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

    .comparison-table th {
      background: #f8fafc;
      font-weight: 750;
      color: var(--text-main);
    }

    .comparison-table th.col-highlight,
    .comparison-table td.col-highlight {
      background: #eff6ff;
      color: var(--primary);
      font-weight: 700;
      border-left: 2px solid #bfdbfe;
      border-right: 2px solid #bfdbfe;
    }

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

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

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

    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.02);
    }

    .pricing-ribbon {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
      color: #ffffff;
      font-size: 0.76rem;
      font-weight: 800;
      padding: 4px 16px;
      border-radius: 999px;
      letter-spacing: 0.05em;
    }

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

    .pricing-rate {
      font-size: 2.1rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .pricing-sub {
      font-size: 0.85rem;
      color: var(--text-sub);
      margin-bottom: 24px;
    }

    .pricing-list {
      list-style: none;
      text-align: left;
      margin-bottom: 28px;
    }

    .pricing-list li {
      font-size: 0.88rem;
      color: var(--text-muted);
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-light);
    }

    /* 案例中心：展示规定素材图与项目 */
    .cases-grid-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 28px;
      align-items: stretch;
      margin-bottom: 28px;
    }

    .case-featured-card {
      background: #ffffff;
      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-wrap {
      width: 100%;
      background: #f1f5f9;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

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

    .case-info-content {
      padding: 24px;
    }

    .case-info-content h3 {
      font-size: 1.22rem;
      font-weight: 750;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .case-info-content p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .cases-sub-column {
      display: grid;
      grid-template-rows: repeat(2, 1fr);
      gap: 24px;
    }

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

    .case-small-card .case-info-content {
      padding: 18px 20px;
    }

    .case-small-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .case-small-card p {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 服务网络与加盟代理 */
    .agency-banner-wrap {
      background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1.3fr 0.7fr;
      gap: 36px;
      align-items: center;
      box-shadow: var(--shadow-sm);
    }

    .agency-text-h2 {
      font-size: 1.85rem;
      font-weight: 850;
      color: #0b1f44;
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .agency-text-p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .agency-benefits-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 24px;
    }

    .agency-benefit-item {
      background: #ffffff;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid #e2e8f0;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
    }

    .agency-qr-card {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-md);
      padding: 26px;
      text-align: center;
      box-shadow: var(--shadow-md);
    }

    .agency-qr-card img {
      width: 160px;
      height: 160px;
      object-fit: cover;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      margin-bottom: 14px;
    }

    .agency-qr-title {
      font-size: 0.95rem;
      font-weight: 750;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .agency-qr-desc {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    /* 6条真实用户评论 */
    .reviews-grid-wrap {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .review-stars {
      color: #f59e0b;
      font-size: 0.95rem;
      letter-spacing: 2px;
      margin-bottom: 14px;
    }

    .review-quote {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.68;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
    }

    .review-avatar-text {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
      font-weight: 800;
    }

    .review-author-name {
      font-size: 0.94rem;
      font-weight: 750;
      color: var(--text-main);
      line-height: 1.2;
    }

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

    /* AI百科知识条 */
    .encyclopedia-strip-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .encyclopedia-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .encyclopedia-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .encyclopedia-card h3 {
      font-size: 1.05rem;
      font-weight: 750;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .encyclopedia-card p {
      font-size: 0.86rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 行业资讯与文章 */
    .news-articles-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .articles-links-container {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .article-item-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 18px;
      background: #f8fafc;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      color: var(--text-main);
      font-weight: 600;
      transition: var(--transition);
    }

    .article-item-link:hover {
      background: #eff6ff;
      border-color: var(--primary);
      color: var(--primary);
      transform: translateX(3px);
    }

    /* 常见问题 FAQ 折叠面板 (不少于10条) */
    .faq-accordion-wrap {
      max-width: 920px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-trigger {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .faq-trigger:hover {
      color: var(--primary);
    }

    .faq-icon-cross {
      font-size: 1.25rem;
      font-weight: 400;
      color: var(--text-sub);
      transition: transform 0.3s ease;
    }

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

    .faq-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #fcfdfe;
    }

    .faq-item.active .faq-panel {
      max-height: 240px;
      padding: 0 22px 20px 22px;
    }

    .faq-panel p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

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

    .contact-info-panel h3 {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .contact-info-panel p {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.68;
      margin-bottom: 24px;
    }

    .contact-items-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 28px;
    }

    .contact-row-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.94rem;
      color: var(--text-main);
      font-weight: 600;
    }

    .contact-row-item span {
      color: var(--text-sub);
      font-weight: 500;
    }

    .form-wrapper form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group-item {
      display: flex;
      flex-direction: column;
      gap: 6px;
      text-align: left;
    }

    .form-label {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.92rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #f8fafc;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      background: #ffffff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.12);
    }

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

    .btn-submit-form {
      padding: 14px 28px;
      font-size: 1rem;
      font-weight: 800;
      color: #ffffff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-bright) 100%);
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(29, 78, 216, 0.28);
      transition: var(--transition);
    }

    .btn-submit-form:hover {
      box-shadow: 0 6px 20px rgba(29, 78, 216, 0.38);
      transform: translateY(-1px);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 32px 0;
      border-top: 1px solid #1e293b;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 36px;
      padding-bottom: 40px;
      border-bottom: 1px solid #1e293b;
    }

    .footer-brand-desc {
      font-size: 0.88rem;
      line-height: 1.7;
      color: #94a3b8;
      margin-top: 14px;
      max-width: 400px;
    }

    .footer-col-title {
      font-size: 0.96rem;
      font-weight: 750;
      color: #f8fafc;
      margin-bottom: 18px;
      letter-spacing: 0.02em;
    }

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

    .footer-links-list a {
      font-size: 0.88rem;
      color: #94a3b8;
    }

    .footer-links-list a:hover {
      color: #60a5fa;
    }

    .friend-links-bar {
      padding: 24px 0;
      border-bottom: 1px solid #1e293b;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.86rem;
    }

    .friend-links-label {
      color: #cbd5e1;
      font-weight: 700;
    }

    .friend-links-bar a {
      color: #94a3b8;
    }

    .friend-links-bar a:hover {
      color: #38bdf8;
    }

    .footer-bottom-bar {
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.82rem;
      color: #64748b;
    }

    .ai-page-home-link {
      color: #93c5fd;
      font-weight: 600;
    }

    .ai-page-home-link:hover {
      text-decoration: underline;
    }

    /* 浮动客服与返回顶部小部件 */
    .floating-widget-bar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 16px rgba(15, 23, 42, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.1rem;
      transition: var(--transition);
      position: relative;
    }

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

    .float-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      display: none;
      width: 140px;
      text-align: center;
    }

    .float-qr-popup img {
      width: 100%;
      height: auto;
      border-radius: 4px;
      display: block;
      margin-bottom: 6px;
    }

    .float-qr-popup span {
      font-size: 0.75rem;
      color: var(--text-main);
      font-weight: 700;
    }

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

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.3rem;
      }
      .hero-stats-grid,
      .platform-core-four,
      .workflow-steps-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .solutions-tabs-grid,
      .token-pricing-matrix,
      .reviews-grid-wrap,
      .encyclopedia-strip-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid-layout {
        grid-template-columns: 1fr;
      }
      .agency-banner-wrap,
      .contact-form-layout {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        width: 100%;
        padding: 12px 8px;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-desc {
        font-size: 1rem;
      }
      .hero-stats-grid,
      .platform-core-four,
      .workflow-steps-wrap,
      .services-grid,
      .solutions-tabs-grid,
      .token-pricing-matrix,
      .reviews-grid-wrap,
      .encyclopedia-strip-grid,
      .articles-links-container,
      .agency-benefits-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .rating-banner-right {
        text-align: left;
      }
    }