:root {
      --primary: #10b981;
      --primary-hover: #059669;
      --primary-dark: #047857;
      --primary-light: #ecfdf5;
      --primary-soft: #d1fae5;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-body: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --border-focus: #a7f3d0;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(16, 185, 129, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 15px -3px rgba(16, 185, 129, 0.12), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-full: 9999px;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

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

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
      background-image: radial-gradient(#d1fae5 0.75px, transparent 0.75px), radial-gradient(#d1fae5 0.75px, var(--bg-body) 0.75px);
      background-size: 30px 30px;
      background-position: 0 0, 15px 15px;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(16, 185, 129, 0.15);
      box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }

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

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

    .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0; /* 用户特别设定 */
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.93rem;
      font-weight: 500;
      color: var(--text-main);
      text-decoration: none;
      transition: color 0.2s, background-color 0.2s;
      border-radius: var(--radius-sm);
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-full);
      text-decoration: none;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(16, 185, 129, 0.45);
    }

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

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

    .btn-large {
      padding: 14px 34px;
      font-size: 1.08rem;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 4px;
    }

    /* 首屏 HERO 区域（严格无图片） */
    .hero-section {
      padding: 80px 0 60px;
      background: linear-gradient(180deg, #ecfdf5 0%, rgba(240, 253, 244, 0.4) 60%, var(--bg-body) 100%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      background-color: #ffffff;
      border: 1px solid var(--border-focus);
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary-dark);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      margin-right: 8px;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-subtitle {
      font-size: 1.18rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .hero-highlight-pill {
      display: flex;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      max-width: 900px;
      margin: 0 auto;
    }

    .pill-item {
      background: #ffffff;
      border: 1px solid #d1fae5;
      padding: 10px 18px;
      border-radius: var(--radius-md);
      font-size: 0.9rem;
      color: var(--text-main);
      font-weight: 500;
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .pill-check {
      color: var(--primary);
      font-weight: bold;
    }

    /* 数据指标卡片 */
    .metrics-bar {
      margin-top: 40px;
      background: #ffffff;
      border: 1px solid #d1fae5;
      border-radius: var(--radius-lg);
      padding: 30px 20px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      box-shadow: var(--shadow-md);
    }

    .metric-col {
      text-align: center;
      border-right: 1px solid #f1f5f9;
    }

    .metric-col:last-child {
      border-right: none;
    }

    .metric-value {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 章节通用结构 */
    .section-wrap {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-dark);
      background-color: var(--primary-light);
      padding: 4px 14px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-heading {
      font-size: 2.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }

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

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

    .about-card-left {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .about-card-left h3 {
      font-size: 1.5rem;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .about-text {
      color: var(--text-muted);
      font-size: 0.98rem;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .about-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .about-points li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .point-icon {
      color: var(--primary);
      font-weight: bold;
      margin-top: 1px;
    }

    .about-card-right {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

    .feature-item-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      transition: all 0.25s ease;
    }

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

    .feature-box-icon {
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      color: var(--primary-dark);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin-bottom: 14px;
    }

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

    .feature-box-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 支持模型标签墙 */
    .model-wall {
      background: #ffffff;
      border: 1px solid #d1fae5;
      border-radius: var(--radius-lg);
      padding: 30px;
      margin-top: 40px;
      text-align: center;
    }

    .model-wall-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 18px;
    }

    .tags-flex {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-tag {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      transition: all 0.2s;
    }

    .model-tag:hover {
      background: var(--primary-light);
      border-color: var(--primary);
      color: var(--primary-dark);
    }

    /* 一站式创作场景卡片网格 */
    .service-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;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

    .service-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .service-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary-dark);
      background: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
      width: fit-content;
    }

    .service-name {
      font-size: 1.22rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

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

    .service-meta {
      font-size: 0.85rem;
      color: var(--primary-dark);
      font-weight: 600;
      border-top: 1px dashed #e2e8f0;
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    /* 行业解决方案 */
    .industry-tabs-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .industry-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      transition: all 0.25s;
    }

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

    .industry-icon {
      font-size: 1.8rem;
      margin-bottom: 12px;
      display: inline-block;
      color: var(--primary);
    }

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

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

    /* 流程与步骤 */
    .process-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .step-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 16px;
    }

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

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

    /* 案例展示区（带真实资源） */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-item {
      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-media {
      width: 100%;
      background: #f1f5f9;
      overflow: hidden;
    }

    .case-media img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      transition: transform 0.3s;
    }

    .case-item:hover .case-media img {
      transform: scale(1.03);
    }

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

    .case-tag {
      font-size: 0.78rem;
      color: var(--primary-dark);
      font-weight: 600;
      margin-bottom: 6px;
    }

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

    .case-brief {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
      margin-bottom: 12px;
    }

    /* 评测与对比板块 */
    .rating-banner {
      background: linear-gradient(135deg, #ecfdf5 0%, #ffffff 100%);
      border: 2px solid #a7f3d0;
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

    .rating-info-left h3 {
      font-size: 1.6rem;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .rating-score-box {
      text-align: right;
    }

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

    .rating-total {
      font-size: 1.1rem;
      color: var(--text-light);
      font-weight: 600;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.94rem;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
    }

    .compare-table th {
      background-color: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .highlight-col {
      background-color: rgba(236, 253, 245, 0.4);
      font-weight: 600;
      color: var(--primary-dark);
    }

    .compare-table tr:hover {
      background-color: #fafbfc;
    }

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

    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
      transition: all 0.25s;
    }

    .token-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }

    .token-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: var(--radius-full);
    }

    .token-plan-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .token-sub {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-bottom: 20px;
    }

    .token-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 24px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 客户评价网格 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #ffffff;
      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;
    }

    .testimonial-quote {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      position: relative;
    }

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

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

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

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

    /* FAQ 手风琴 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-accordion-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s;
    }

    .faq-accordion-item.active {
      border-color: var(--primary);
    }

    .faq-header {
      width: 100%;
      background: none;
      border: none;
      padding: 18px 22px;
      text-align: left;
      font-size: 1.02rem;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s;
    }

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

    .faq-body {
      padding: 0 22px 18px;
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.65;
      display: none;
    }

    .faq-accordion-item.active .faq-body {
      display: block;
    }

    /* 需求表单与代理专区 */
    .form-contact-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: flex-start;
    }

    .form-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

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

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      font-family: inherit;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }

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

    .contact-info-cards {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .info-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .info-meta-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 8px;
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .qr-container {
      margin-top: 14px;
      padding: 12px;
      background: #f8fafc;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .qr-container img {
      max-width: 140px;
      height: auto;
      display: block;
      border-radius: 4px;
    }

    /* 行业资讯与文章 */
    .article-links-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-link-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-main);
      background: #f8fafc;
      transition: background 0.2s;
    }

    .article-link-item:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid #e2e8f0;
      padding: 60px 0 30px;
      color: var(--text-muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand h3 {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .footer-desc {
      font-size: 0.9rem;
      line-height: 1.6;
      margin-bottom: 20px;
      max-width: 320px;
    }

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

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

    .footer-menu a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s;
    }

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

    .friend-links-box {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-list a {
      color: var(--text-light);
      font-size: 0.84rem;
      text-decoration: none;
      transition: color 0.2s;
    }

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

    .footer-bottom {
      border-top: 1px solid #f1f5f9;
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.84rem;
      color: var(--text-light);
    }

    /* 悬浮快速客服小挂件 */
    .float-contact {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
      cursor: pointer;
      text-decoration: none;
      border: none;
      transition: transform 0.2s;
      position: relative;
    }

    .float-btn:hover {
      transform: scale(1.08);
    }

    .float-tooltip {
      position: absolute;
      right: 60px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 12px;
      border-radius: var(--radius-sm);
      display: none;
      width: 160px;
      text-align: center;
    }

    .float-btn:hover .float-tooltip {
      display: block;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .service-grid, .cases-grid, .token-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar, .process-flow, .industry-tabs-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 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;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 12px;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .about-grid, .form-contact-wrap {
        grid-template-columns: 1fr;
      }
      .service-grid, .cases-grid, .token-grid, .testimonials-grid, .industry-tabs-wrap {
        grid-template-columns: 1fr;
      }
      .metrics-bar, .process-flow {
        grid-template-columns: 1fr;
      }
      .metric-col {
        border-right: none;
        border-bottom: 1px solid #f1f5f9;
        padding-bottom: 16px;
      }
      .metric-col:last-child {
        border-bottom: none;
        padding-bottom: 0;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
      }
      .rating-score-box {
        text-align: left;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }