错误日志：TypeError: ejs:53
    51|             <div class="banner-inner">
    52|                 <div class="banner-content">
 >> 53|                     <div class="banner-title wow fadeInUp"  data-wow-duration="2s" data-wow-delay="0.4s" style="visibility: visible; animation-duration: 2s; animation-delay: 0.4s; animation-name: fadeInUp;"><%= productDetail.data.productName %></div>
    54|                 </div>
    55|             </div>
    56|         </div>

Cannot read properties of undefined (reading 'productName')