:root {
      --primary: #FF5A1F;
      --primary-hover: #E04810;
      --secondary: #0D53FC;
      --secondary-hover: #093EC2;
      --accent-yellow: #FFB800;
      --accent-teal: #00BFA5;
      --dark-text: #171A21;
      --medium-text: #4E5969;
      --light-text: #86909C;
      --bg-light: #F8F9FD;
      --bg-white: #FFFFFF;
      --bg-card: #FFFFFF;
      --border-color: #E5E8EF;
      --border-focus: #FF5A1F;
      --shadow-sm: 0 4px 12px rgba(23, 26, 33, 0.05);
      --shadow-md: 0 8px 24px rgba(23, 26, 33, 0.08);
      --shadow-lg: 0 16px 36px rgba(13, 83, 252, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-width: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

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

    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-light);
      color: var(--dark-text);
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    /* 全局容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 通用区块排版 */
    .section-wrap {
      padding: 72px 0;
      position: relative;
    }

    .section-alt {
      background-color: #F1F4FB;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px auto;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 4px 14px;
      background: rgba(255, 90, 31, 0.1);
      color: var(--primary);
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      border: 1px solid rgba(255, 90, 31, 0.2);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark-text);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--medium-text);
      line-height: 1.7;
    }

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

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

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

    .brand-logo img.ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-text-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--dark-text);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      font-size: 11px;
      background: var(--primary);
      color: #fff;
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 600;
    }

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

    .nav-links li a {
      font-size: 14px;
      font-weight: 600;
      color: var(--medium-text);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: rgba(255, 90, 31, 0.06);
    }

    .nav-action-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      cursor: pointer;
      transition: all 0.25s ease;
      border: 2px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(255, 90, 31, 0.35);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 90, 31, 0.45);
    }

    .btn-secondary {
      background: var(--secondary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(13, 83, 252, 0.3);
    }

    .btn-secondary:hover {
      background: var(--secondary-hover);
      transform: translateY(-2px);
    }

    .btn-outline {
      border-color: var(--secondary);
      color: var(--secondary);
      background: transparent;
    }

    .btn-outline:hover {
      background: rgba(13, 83, 252, 0.06);
    }

    .btn-contrast {
      background: #171A21;
      color: #FFFFFF;
    }

    .btn-contrast:hover {
      background: #000000;
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--dark-text);
      cursor: pointer;
      padding: 6px;
    }

    /* 首屏 HERO (严禁图片，采用撞色渐变与科技几何元素) */
    .hero-section {
      padding: 80px 0 60px 0;
      background: linear-gradient(135deg, #FFFFFF 0%, #FFF5EF 50%, #EEF3FF 100%);
      position: relative;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      max-width: 580px;
    }

    .hero-h1 {
      font-size: 38px;
      font-weight: 900;
      color: var(--dark-text);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-h1 span.highlight-orange {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero-h1 span.highlight-blue {
      color: var(--secondary);
    }

    .hero-lead {
      font-size: 17px;
      color: var(--medium-text);
      line-height: 1.7;
      margin-bottom: 30px;
    }

    .hero-cta-box {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 36px;
    }

    .hero-trust-row {
      display: flex;
      align-items: center;
      gap: 20px;
      font-size: 13px;
      color: var(--medium-text);
      border-top: 1px dashed #D3DAE8;
      padding-top: 18px;
    }

    .hero-trust-item {
      display: flex;
      align-items: center;
      gap: 6px;
      font-weight: 600;
    }

    .hero-trust-item svg {
      width: 16px;
      height: 16px;
      color: var(--accent-teal);
    }

    /* 首屏右侧纯CSS科技质感交互面板 */
    .hero-preview-panel {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-lg);
      border: 2px solid #E8EEFB;
      position: relative;
    }

    .hero-panel-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 20px;
    }

    .hero-panel-title {
      font-weight: 800;
      font-size: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--dark-text);
    }

    .live-dot {
      width: 10px;
      height: 10px;
      background: #00D084;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(0, 208, 132, 0.2);
    }

    .model-chip-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }

    .model-chip {
      font-size: 12px;
      font-weight: 700;
      padding: 5px 10px;
      background: #F3F5FA;
      color: var(--dark-text);
      border-radius: 6px;
      border: 1px solid #E1E6F0;
      transition: all 0.2s ease;
    }

    .model-chip.active {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    .model-chip.hot {
      background: #EEF3FF;
      color: var(--secondary);
      border-color: #CCD9FB;
    }

    .hero-matrix-box {
      background: #F8FAFD;
      border-radius: var(--radius-md);
      padding: 16px;
      border: 1px solid var(--border-color);
    }

    .matrix-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--medium-text);
      margin-bottom: 10px;
      display: flex;
      justify-content: space-between;
    }

    .matrix-bar-item {
      margin-bottom: 10px;
    }

    .matrix-bar-label {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .matrix-track {
      height: 8px;
      background: #E5E9F2;
      border-radius: 4px;
      overflow: hidden;
    }

    .matrix-fill {
      height: 100%;
      border-radius: 4px;
    }

    /* 数据指标卡片 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -30px;
      position: relative;
      z-index: 10;
    }

    .metric-card {
      background: #FFFFFF;
      padding: 24px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      text-align: center;
      transition: transform 0.25s ease;
    }

    .metric-card:hover {
      transform: translateY(-4px);
    }

    .metric-num {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 14px;
      color: var(--medium-text);
      font-weight: 600;
    }

    /* 卡片网格与组件库通用 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .service-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(13, 83, 252, 0.1);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }

    .service-icon.orange {
      background: rgba(255, 90, 31, 0.1);
      color: var(--primary);
    }

    .service-icon.teal {
      background: rgba(0, 191, 165, 0.1);
      color: var(--accent-teal);
    }

    .service-title {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--dark-text);
    }

    .service-text {
      font-size: 14px;
      color: var(--medium-text);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .feature-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .feature-tag {
      font-size: 11px;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      background: #F1F4FA;
      color: var(--medium-text);
    }

    /* 一站式工作流矩阵 */
    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .workflow-item {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .workflow-item-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .wf-badge {
      width: 28px;
      height: 28px;
      background: var(--primary);
      color: #fff;
      border-radius: 8px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
    }

    .wf-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--dark-text);
    }

    .wf-desc {
      font-size: 13.5px;
      color: var(--medium-text);
      line-height: 1.6;
    }

    /* 流程步骤 */
    .step-container {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

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

    .step-number {
      width: 36px;
      height: 36px;
      margin: 0 auto 14px;
      background: var(--secondary);
      color: #FFFFFF;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
    }

    .step-name {
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--dark-text);
    }

    .step-detail {
      font-size: 12.5px;
      color: var(--medium-text);
      line-height: 1.55;
    }

    /* 案例展示区 */
    .case-media-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .case-img-wrap {
      width: 100%;
      overflow: hidden;
      background: #EEF2F8;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

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

    .case-info {
      padding: 20px;
    }

    .case-category {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .case-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13px;
      color: var(--medium-text);
      line-height: 1.6;
    }

    /* 对比评测表格与评测卡片 */
    .rating-highlight-banner {
      background: linear-gradient(135deg, #FF5A1F 0%, #FF8A00 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 32px;
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      box-shadow: 0 12px 30px rgba(255, 90, 31, 0.25);
    }

    .rating-banner-left {
      max-width: 600px;
    }

    .rating-score-box {
      text-align: center;
      background: rgba(255, 255, 255, 0.18);
      backdrop-filter: blur(8px);
      padding: 20px 32px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .rating-stars {
      font-size: 24px;
      color: #FFE600;
      letter-spacing: 4px;
      margin-bottom: 4px;
    }

    .rating-score-num {
      font-size: 42px;
      font-weight: 900;
      line-height: 1;
    }

    .rating-score-total {
      font-size: 14px;
      opacity: 0.9;
    }

    .comparison-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

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

    .comparison-table th {
      background: #F8FAFD;
      font-weight: 800;
      color: var(--dark-text);
    }

    .comparison-table th.highlight,
    .comparison-table td.highlight {
      background: rgba(255, 90, 31, 0.04);
      color: var(--primary);
      font-weight: 700;
    }

    .check-yes {
      color: #00BFA5;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .check-no {
      color: #A0AEC0;
    }

    /* 需求匹配与交互表单 */
    .form-panel-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group.full-width {
      grid-column: span 2;
    }

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 6px;
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--dark-text);
      background: #FAFCFE;
      outline: none;
      transition: border-color 0.2s ease;
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary);
      background: #FFFFFF;
    }

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

    /* Token 比价列表 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .token-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 20px;
      border: 1px solid var(--border-color);
      transition: all 0.25s ease;
      text-align: center;
    }

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

    .token-name {
      font-size: 16px;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .token-price {
      font-size: 22px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .token-unit {
      font-size: 12px;
      color: var(--medium-text);
      margin-bottom: 12px;
    }

    .token-status {
      font-size: 11px;
      font-weight: 700;
      color: #00BFA5;
      background: rgba(0, 191, 165, 0.1);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
    }

    /* FAQ 折叠面板 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

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

    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-text);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--secondary);
    }

    .faq-icon-arrow {
      font-size: 18px;
      font-weight: 800;
      transition: transform 0.3s ease;
      color: var(--light-text);
    }

    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
      color: var(--secondary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      background: #FAFBFE;
      font-size: 14.5px;
      color: var(--medium-text);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      padding: 16px 24px 24px 24px;
      max-height: 400px;
    }

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

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

    .review-user-row {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .review-avatar-char {
      width: 42px;
      height: 42px;
      background: linear-gradient(135deg, var(--secondary), #5E93FF);
      color: #fff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
    }

    .review-avatar-char.orange {
      background: linear-gradient(135deg, var(--primary), #FFA07A);
    }

    .review-author {
      font-size: 15px;
      font-weight: 800;
      color: var(--dark-text);
    }

    .review-role {
      font-size: 12px;
      color: var(--light-text);
    }

    .review-text {
      font-size: 14px;
      color: var(--medium-text);
      line-height: 1.65;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    .review-stars-static {
      color: #FFB800;
      font-size: 14px;
    }

    /* 行业资讯与文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
    }

    .article-main-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
    }

    .article-links-box {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
    }

    .article-link-item {
      display: block;
      padding: 10px 0;
      border-bottom: 1px dashed var(--border-color);
      font-size: 14px;
      font-weight: 600;
      color: var(--dark-text);
    }

    .article-link-item:hover {
      color: var(--primary);
      padding-left: 6px;
    }

    /* 加盟代理模块 */
    .agent-box {
      background: linear-gradient(135deg, #171A21 0%, #2B313F 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 48px;
      position: relative;
    }

    .agent-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .agent-title {
      font-size: 28px;
      font-weight: 900;
      margin-bottom: 16px;
      color: #FFFFFF;
    }

    .agent-desc {
      font-size: 15px;
      color: #C5CBD6;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 28px;
    }

    .agent-perk-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: #EBF0FF;
    }

    .agent-card-right {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
    }

    .agent-tag {
      display: inline-block;
      background: var(--primary);
      color: #fff;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }

    /* 联系我们与页脚 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
    }

    .contact-card-left {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .contact-row-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .contact-icon-bubble {
      width: 40px;
      height: 40px;
      background: #EEF3FF;
      color: var(--secondary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }

    .contact-info-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--light-text);
      margin-bottom: 2px;
    }

    .contact-info-val {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-text);
    }

    .qr-box-wrap {
      text-align: center;
      padding: 16px;
      background: #F8F9FD;
      border-radius: var(--radius-sm);
      border: 1px dashed var(--border-color);
    }

    .qr-box-wrap img {
      max-width: 140px;
      height: auto;
      border-radius: 6px;
      margin-bottom: 8px;
    }

    .qr-tip {
      font-size: 12px;
      color: var(--medium-text);
      font-weight: 600;
    }

    /* 底部通用规范 */
    .site-footer {
      background: #11141A;
      color: #9AA4B2;
      padding: 60px 0 24px 0;
      border-top: 1px solid #232834;
      font-size: 14px;
    }

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

    .footer-brand-desc {
      font-size: 13.5px;
      line-height: 1.7;
      color: #838E9E;
      margin-top: 14px;
      max-width: 320px;
    }

    .footer-col-title {
      font-size: 15px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 18px;
    }

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

    .footer-menu li a {
      color: #9AA4B2;
      font-size: 13.5px;
    }

    .footer-menu li a:hover {
      color: #FFFFFF;
    }

    .friend-links-box {
      border-top: 1px solid #232834;
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 13px;
      font-weight: 700;
      color: #E2E8F0;
      margin-bottom: 12px;
    }

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

    .friend-links-list a {
      color: #838E9E;
      font-size: 13px;
    }

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

    .footer-bottom-bar {
      border-top: 1px solid #1E232E;
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 12.5px;
      color: #6C7684;
    }

    /* 悬浮客服与返回顶部 */
    .floating-widget {
      position: fixed;
      right: 24px;
      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(--dark-text);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      border: 1px solid var(--border-color);
      transition: all 0.25s ease;
      font-size: 18px;
    }

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

    .float-btn.primary-float {
      background: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .grid-4, .token-grid, .metrics-bar, .step-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .workflow-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .nav-action-group {
        display: none;
      }
      .nav-links.mobile-active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.mobile-active li {
        width: 100%;
      }
      .nav-links.mobile-active li a {
        display: block;
        padding: 12px 16px;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .grid-3, .grid-4, .grid-2, .workflow-grid, .reviews-grid, .articles-grid, .contact-grid, .token-grid, .agent-grid, .metrics-bar, .step-container {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .footer-container {
        grid-template-columns: 1fr;
      }
      .floating-widget {
        right: 16px;
        bottom: 20px;
      }
    }