:root {
      --primary-red: #c91818;
      --primary-red-hover: #a80f0f;
      --primary-red-light: #fff1f0;
      --accent-gold: #e8a238;
      --dark-title: #1f1f1f;
      --dark-text: #3d3d3d;
      --muted-text: #6b7280;
      --border-color: #ffd8d6;
      --bg-page: #faf8f8;
      --card-bg: #ffffff;
      --shadow-sm: 0 2px 8px rgba(180, 20, 20, 0.06);
      --shadow-md: 0 8px 24px rgba(180, 20, 20, 0.08);
      --shadow-hover: 0 12px 32px rgba(201, 24, 24, 0.16);
      --radius: 12px;
      --transition: all 0.28s ease;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--dark-text);
      line-height: 1.6;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

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

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid #fee2e2;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap .ai-page-logo {
      height: 38px;
      width: auto;
    }
    .brand-text-block {
      display: flex;
      flex-direction: column;
    }
    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-red);
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-desc {
      font-size: 11px;
      color: var(--muted-text);
      letter-spacing: 0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links a {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--dark-title);
      border-radius: 6px;
    }
    .nav-links a:hover {
      color: var(--primary-red);
      background-color: var(--primary-red-light);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      background-color: var(--primary-red);
      color: #ffffff !important;
      font-size: 14px;
      font-weight: 600;
      border-radius: 30px;
      box-shadow: 0 4px 12px rgba(201, 24, 24, 0.25);
      border: 1px solid var(--primary-red);
    }
    .btn-portal:hover {
      background-color: var(--primary-red-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(201, 24, 24, 0.35);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--dark-title);
      cursor: pointer;
      padding: 4px;
    }

    /* 模块基础样式 */
    section {
      padding: 68px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 46px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      background-color: var(--primary-red-light);
      color: var(--primary-red);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 12px;
      letter-spacing: 1px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark-title);
      line-height: 1.3;
      margin-bottom: 12px;
    }
    .section-sub {
      font-size: 15px;
      color: var(--muted-text);
      line-height: 1.6;
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 72px 0 64px;
      background: radial-gradient(circle at 50% 10%, #fff5f5 0%, #fff0f0 40%, #faf8f8 85%);
      position: relative;
      border-bottom: 1px solid #fee2e2;
    }
    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-lead-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #ffffff;
      border: 1px solid #ffd4d4;
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 13px;
      color: var(--primary-red);
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }
    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--dark-title);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      color: var(--primary-red);
    }
    .hero-desc {
      font-size: 18px;
      color: #555555;
      margin-bottom: 34px;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 44px;
    }
    .btn-main-action {
      background: linear-gradient(135deg, #d32020 0%, #ad1111 100%);
      color: #ffffff !important;
      padding: 14px 34px;
      font-size: 16px;
      font-weight: 700;
      border-radius: 32px;
      box-shadow: 0 8px 24px rgba(201, 24, 24, 0.35);
      border: 1px solid #9e0e0e;
    }
    .btn-main-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(201, 24, 24, 0.45);
    }
    .btn-sub-action {
      background: #ffffff;
      color: var(--dark-title);
      padding: 14px 28px;
      font-size: 16px;
      font-weight: 600;
      border-radius: 32px;
      border: 1px solid #e5e7eb;
      box-shadow: var(--shadow-sm);
    }
    .btn-sub-action:hover {
      color: var(--primary-red);
      border-color: var(--border-color);
      background-color: var(--primary-red-light);
    }
    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 36px;
    }
    .hero-stat-card {
      background: #ffffff;
      border: 1px solid #ffe1e1;
      padding: 20px 14px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }
    .stat-number {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary-red);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 13px;
      color: var(--muted-text);
      margin-top: 4px;
    }

    /* 平台介绍 */
    .about-box {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid #fee2e2;
      padding: 40px;
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--dark-title);
      margin-bottom: 16px;
      line-height: 1.35;
    }
    .about-text p {
      font-size: 15px;
      color: var(--dark-text);
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .about-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 20px;
    }
    .feat-point {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--dark-title);
    }
    .feat-point-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary-red);
    }
    .about-image-card {
      background: #fffafa;
      border: 1px solid #ffe5e5;
      padding: 16px;
      border-radius: var(--radius);
    }
    .about-image-card img {
      border-radius: 8px;
      border: 1px solid #fed7d7;
    }
    .img-tag-caption {
      margin-top: 10px;
      text-align: center;
      font-size: 13px;
      color: var(--muted-text);
    }

    /* 服务能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .service-card {
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #fca5a5;
    }
    .service-top-badge {
      display: inline-block;
      align-self: flex-start;
      padding: 3px 10px;
      background: var(--primary-red-light);
      color: var(--primary-red);
      font-size: 12px;
      font-weight: 700;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .service-card-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-title);
      margin-bottom: 8px;
    }
    .service-card-desc {
      font-size: 13.5px;
      color: #666;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .service-card-tag {
      font-size: 12px;
      color: var(--primary-red);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 顶级大模型矩阵标牌 */
    .models-marquee {
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-sm);
    }
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .model-chip {
      background: #fff8f8;
      border: 1px solid #ffd8d6;
      padding: 7px 15px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      color: var(--dark-title);
      transition: var(--transition);
    }
    .model-chip:hover {
      background: var(--primary-red);
      color: #ffffff;
      border-color: var(--primary-red);
    }

    /* 一站式制作步骤流水线 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      position: relative;
    }
    .step-item {
      background: #ffffff;
      border: 1px solid #fed7d7;
      border-radius: var(--radius);
      padding: 24px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-num {
      width: 34px;
      height: 34px;
      background: var(--primary-red);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 14px;
      margin-bottom: 14px;
    }
    .step-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-title);
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 13px;
      color: var(--muted-text);
      line-height: 1.55;
    }

    /* 案例中心双列图文展示 */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid #fee2e2;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .case-img-box {
      background: #fdf2f2;
      padding: 12px;
      border-bottom: 1px solid #fee2e2;
    }
    .case-img-box img {
      border-radius: 8px;
      width: 100%;
    }
    .case-info {
      padding: 22px;
    }
    .case-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary-red);
      background: var(--primary-red-light);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
    }
    .case-name {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-title);
      margin-bottom: 8px;
    }
    .case-p {
      font-size: 13.5px;
      color: #555555;
      line-height: 1.6;
    }

    /* 对比评测表格板块 */
    .review-score-banner {
      background: linear-gradient(135deg, #fff5f5 0%, #ffebeb 100%);
      border: 1px solid #fecaca;
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      flex-wrap: wrap;
      gap: 16px;
    }
    .score-left {
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .stars-block {
      font-size: 24px;
      color: #eab308;
    }
    .score-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--dark-title);
    }
    .score-desc {
      font-size: 13px;
      color: var(--muted-text);
    }
    .score-right {
      display: flex;
      align-items: baseline;
      gap: 4px;
    }
    .score-val {
      font-size: 38px;
      font-weight: 900;
      color: var(--primary-red);
      line-height: 1;
    }
    .score-max {
      font-size: 16px;
      color: var(--muted-text);
      font-weight: 600;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius);
      border: 1px solid #fed7d7;
      box-shadow: var(--shadow-sm);
      background: #ffffff;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #fee2e2;
    }
    .compare-table th {
      background: #fff1f1;
      color: var(--dark-title);
      font-weight: 700;
    }
    .compare-table th.highlight-col, .compare-table td.highlight-col {
      background: #fff8f8;
      font-weight: 600;
      color: var(--primary-red);
      border-left: 2px solid #f87171;
      border-right: 2px solid #f87171;
    }
    .badge-check {
      color: #16a34a;
      font-weight: 700;
    }
    .badge-cross {
      color: #9ca3af;
    }

    /* Token 比价看板 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .token-card {
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .token-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }
    .token-model-name {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-title);
    }
    .token-save-badge {
      font-size: 12px;
      padding: 2px 8px;
      border-radius: 4px;
      background: #fef2f2;
      color: var(--primary-red);
      font-weight: 700;
      border: 1px solid #fecaca;
    }
    .token-price-row {
      margin-bottom: 12px;
    }
    .token-our-price {
      font-size: 26px;
      font-weight: 900;
      color: var(--primary-red);
    }
    .token-unit {
      font-size: 13px;
      color: var(--muted-text);
    }
    .token-official-price {
      font-size: 13px;
      color: #9ca3af;
      text-decoration: line-through;
    }
    .token-features-list {
      list-style: none;
      border-top: 1px dashed #fee2e2;
      padding-top: 14px;
      margin-top: 14px;
      font-size: 13px;
      color: #555;
    }
    .token-features-list li {
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 行业方案与加盟代理 */
    .agency-banner {
      background: linear-gradient(120deg, #c91818 0%, #991b1b 100%);
      color: #ffffff;
      border-radius: var(--radius);
      padding: 40px;
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
      align-items: center;
      box-shadow: var(--shadow-md);
    }
    .agency-banner h3 {
      font-size: 26px;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 12px;
      color: #ffffff;
    }
    .agency-banner p {
      font-size: 15px;
      line-height: 1.7;
      color: #fed7d7;
    }
    .agency-action {
      text-align: right;
    }
    .btn-agency-join {
      display: inline-block;
      background: #ffffff;
      color: var(--primary-red) !important;
      padding: 14px 32px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 16px;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    }
    .btn-agency-join:hover {
      background: #fff1f1;
      transform: translateY(-2px);
    }

    /* 客户评论 6 条卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 14px;
      color: #444444;
      line-height: 1.7;
      margin-bottom: 16px;
      position: relative;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #fff1f1;
      padding-top: 14px;
    }
    .author-avatar-text {
      width: 40px;
      height: 40px;
      background: #fee2e2;
      color: var(--primary-red);
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
    }
    .author-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark-title);
    }
    .author-info span {
      font-size: 12px;
      color: var(--muted-text);
    }

    /* 常见问题折叠面板 FAQ */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: 8px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-title);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
    }
    .faq-question:hover {
      background-color: #fff9f9;
      color: var(--primary-red);
    }
    .faq-arrow {
      font-size: 18px;
      transition: transform 0.25s ease;
      color: var(--primary-red);
    }
    .faq-answer {
      display: none;
      padding: 0 22px 18px;
      font-size: 14px;
      color: #555555;
      line-height: 1.7;
      border-top: 1px dashed #fee2e2;
      background: #fffdfd;
    }
    .faq-item.active .faq-answer {
      display: block;
      padding-top: 14px;
    }
    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    /* 需求匹配与联系我们表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }
    .contact-info-col h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--dark-title);
      margin-bottom: 14px;
    }
    .contact-info-col p {
      font-size: 14px;
      color: var(--muted-text);
      line-height: 1.6;
      margin-bottom: 24px;
    }
    .contact-meta-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      font-size: 14px;
      color: var(--dark-title);
    }
    .contact-meta-item {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .meta-label {
      font-weight: 700;
      color: var(--primary-red);
      min-width: 80px;
    }
    .qr-showcase {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-top: 24px;
      padding: 16px;
      background: #fff8f8;
      border: 1px solid #fed7d7;
      border-radius: 8px;
    }
    .qr-showcase img {
      width: 100px;
      height: 100px;
      border-radius: 6px;
      border: 1px solid #fee2e2;
    }
    .qr-text h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-title);
      margin-bottom: 4px;
    }
    .qr-text p {
      font-size: 12px;
      color: var(--muted-text);
      margin: 0;
    }

    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--dark-title);
      margin-bottom: 6px;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid #cbd5e1;
      border-radius: 6px;
      font-size: 14px;
      background: #ffffff;
      color: var(--dark-title);
      transition: var(--transition);
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary-red);
      box-shadow: 0 0 0 3px rgba(201, 24, 24, 0.12);
    }
    .btn-submit-form {
      width: 100%;
      background: var(--primary-red);
      color: #ffffff;
      padding: 12px 20px;
      border: none;
      border-radius: 6px;
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(201, 24, 24, 0.25);
    }
    .btn-submit-form:hover {
      background: var(--primary-red-hover);
    }

    /* 行业资讯与文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .article-card {
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .article-badge {
      font-size: 12px;
      color: var(--primary-red);
      background: var(--primary-red-light);
      padding: 2px 8px;
      border-radius: 4px;
      align-self: flex-start;
      margin-bottom: 10px;
      font-weight: 600;
    }
    .article-title-link {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-title);
      line-height: 1.45;
      margin-bottom: 10px;
    }
    .article-title-link:hover {
      color: var(--primary-red);
    }
    .article-digest {
      font-size: 13px;
      color: var(--muted-text);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .article-more {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-red);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid #fed7d7;
      padding-top: 48px;
      padding-bottom: 30px;
      margin-top: 40px;
    }
    .footer-inner-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 36px;
    }
    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-title);
      margin-bottom: 16px;
    }
    .footer-col p {
      font-size: 13.5px;
      color: var(--muted-text);
      line-height: 1.7;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13.5px;
      color: #555555;
    }
    .footer-links-list a:hover {
      color: var(--primary-red);
    }
    .friend-links-box {
      border-top: 1px solid #fee2e2;
      padding-top: 20px;
      margin-bottom: 24px;
    }
    .friend-links-box h5 {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark-title);
      margin-bottom: 10px;
    }
    .friend-links-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .friend-links-tags a {
      font-size: 13px;
      color: #666666;
      background: #fff8f8;
      border: 1px solid #fee2e2;
      padding: 4px 10px;
      border-radius: 4px;
    }
    .friend-links-tags a:hover {
      color: var(--primary-red);
      border-color: var(--primary-red);
    }
    .footer-copyright {
      border-top: 1px solid #f3f4f6;
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #888888;
    }

    /* 浮动客服入口与返回顶部 */
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: 50%;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-red);
      cursor: pointer;
      transition: var(--transition);
      text-align: center;
    }
    .float-btn:hover {
      background: var(--primary-red);
      color: #ffffff;
      transform: translateY(-3px);
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .services-grid, .token-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-title {
        font-size: 34px;
      }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid #fed7d7;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-box, .case-grid, .contact-wrapper, .agency-banner, .footer-inner-top {
        grid-template-columns: 1fr;
      }
      .services-grid, .token-grid, .reviews-grid, .articles-grid, .flow-steps {
        grid-template-columns: 1fr;
      }
      .agency-action {
        text-align: left;
      }
      .section-title {
        font-size: 26px;
      }
    }