update

public/index.html

@@ -778,7 +778,7 @@
             document.getElementsByClassName("content-header")[2].innerText = "作品提交"
             document.getElementById("uploadFile").previousElementSibling.innerText = "上传作品说明文件";
             document.getElementById("uploadVideo").previousElementSibling.innerText = "上传作品演示视频";
-            document.getElementsByClassName("submit-btn")[0] = "提交";
+            document.getElementsByClassName("submit-btn")[0].innerText = "提交";
         }
         const nowTime = new Date();
         const deadline = new Date("2025-09-22");