/* OKX广告的样式 */
    .okx-ad {
      background: linear-gradient(135deg, #1e3c72, #2a5298); /* 渐变背景 */
      color: white;
      padding: 30px;
      text-align: center;
      margin: 20px 0;
      border-radius: 15px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2); /* 增加阴影效果 */
      font-family: 'Arial', sans-serif;
      transition: transform 0.3s ease;
    }

    .okx-ad:hover {
      transform: scale(1.05); /* 鼠标悬停时放大 */
    }

    .okx-ad h3 {
      font-size: 24px;
      font-weight: 600;
      margin-bottom: 10px;
      color: #ffffff;
    }

    .okx-ad p {
      font-size: 18px;
      margin: 10px 0;
      line-height: 1.6;
      color: #f4f4f4;
    }

    .okx-ad a {
      background-color: #f39c12; /* 按钮背景颜色 */
      color: #ffffff;
      padding: 12px 30px;
      font-size: 20px;
      font-weight: bold;
      border-radius: 30px;
      text-decoration: none;
      display: inline-block;
      transition: background-color 0.3s ease, transform 0.3s ease;
      margin-top: 20px;
    }

    .okx-ad a:hover {
      background-color: #e67e22; /* 鼠标悬停时按钮变色 */
      transform: scale(1.1); /* 鼠标悬停时按钮放大 */
    }

    /* 增加注册按钮的吸引力 */
    .okx-ad .register-btn {
      background: linear-gradient(135deg, #ff7e5f, #feb47b); /* 渐变按钮背景 */
      color: #ffffff;
      padding: 15px 40px;
      font-size: 20px;
      border-radius: 50px;
      text-decoration: none;
      display: inline-block;
      font-weight: bold;
      margin-top: 20px;
      box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2); /* 文字按钮阴影 */
      transition: all 0.3s ease;
    }

    .okx-ad .register-btn:hover {
      background: linear-gradient(135deg, #feb47b, #ff7e5f); /* 按钮鼠标悬停时颜色变化 */
      transform: translateY(-3px); /* 按钮上升效果 */
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
      .okx-ad {
        padding: 20px;
      }

      .okx-ad h3 {
        font-size: 20px;
      }

      .okx-ad p {
        font-size: 16px;
      }

      .okx-ad a,
      .okx-ad .register-btn {
        font-size: 18px;
        padding: 10px 30px;
      }
    }