diff --git a/web/src/store/generation.ts b/web/src/store/generation.ts
index 5a62325..c415a42 100644
--- a/web/src/store/generation.ts
+++ b/web/src/store/generation.ts
@@ -54,6 +54,15 @@ function mapProgress(backendStatus: string): number {
   return 50;
 }
 
+const ORPHAN_MATERIAL_MENTION_RE = /@(?:图片|视频|音频|素材)\S*/;
+
+function hasOrphanMaterialMention(input: ReturnType<typeof useInputBarStore.getState>): boolean {
+  if (input.mode !== 'universal') return false;
+  const hasDirectRefs = input.references.length > 0;
+  const hasAssetMentions = (input.assetMentions || []).length > 0;
+  return !hasDirectRefs && !hasAssetMentions && ORPHAN_MATERIAL_MENTION_RE.test(input.prompt);
+}
+
 /** Check if a URL is an asset library reference (case-insensitive protocol). */
 function isAssetUrl(url: string): boolean {
   return url.startsWith('asset://') || url.startsWith('Asset://');
@@ -314,6 +323,10 @@ export const useGenerationStore = create<GenerationState>((set, get) => ({
 
   addTask: async () => {
     const input = useInputBarStore.getState();
+    if (hasOrphanMaterialMention(input)) {
+      showToast('@对应的内容为空');
+      return null;
+    }
     if (!input.canSubmit()) return null;
 
     // Collect files to upload (or existing TOS URLs for regeneration)