diff --git a/wwwroot/api/ticket_detail_popup.dspy b/wwwroot/api/ticket_detail_popup.dspy
index 94ac2fe..1132f30 100644
--- a/wwwroot/api/ticket_detail_popup.dspy
+++ b/wwwroot/api/ticket_detail_popup.dspy
@@ -101,8 +101,15 @@ def _read_input_js(wid):
 
 
 def _post_js(url, body_expr):
+    # body_expr 为 dict 时序列化为 JS 对象字面量（2026-09-10 修复：原实现直接
+    # 字符串拼接 dict → TypeError 500，所有带按钮的弹窗路径全炸；此前 staff_replied
+    # 态不进任何按钮分支才掩盖了此bug）。占位符 "cv_placeholder" 后续替换为 JS 变量 cv。
+    if isinstance(body_expr, dict):
+        body_js = _json.dumps(body_expr)
+    else:
+        body_js = str(body_expr)
     return ("var r=await fetch(" + _json.dumps(url) + ",{method:'POST',"
-            "headers:{'Content-Type':'application/json'},body:JSON.stringify(" + body_expr + ")});"
+            "headers:{'Content-Type':'application/json'},body:JSON.stringify(" + body_js + ")});"
             "var d=await r.json();" + _tail)