diff --git a/src/components/ResultDrawer.vue b/src/components/ResultDrawer.vue
index 6466c17..955196a 100644
--- a/src/components/ResultDrawer.vue
+++ b/src/components/ResultDrawer.vue
@@ -7,6 +7,7 @@
       </div>
 
       <div class="drawer-body" v-if="gradingStore.currentResult">
+        <div class="error-message" v-if="errorMsg">{{ errorMsg }}</div>
         <div class="question-nav" v-if="questions.length > 1">
           <el-button size="small" @click="prevQuestion" :disabled="isGrading">上一题</el-button>
           <span class="question-indicator">{{ currentIdx + 1 }} / {{ questions.length }}</span>
@@ -88,6 +89,7 @@ const settingsStore = useSettingsStore()
 
 const visible = ref(false)
 const isGrading = ref(false)
+const errorMsg = ref('')
 const teacherScore = ref(0)
 const teacherComment = ref('')
 const questions = ref<QuestionItem[]>([])
@@ -133,6 +135,7 @@ function closeDrawer() {
 async function gradeAt(idx: number) {
   if (!gradingStore.currentImage) return
   isGrading.value = true
+  errorMsg.value = ''
   try {
     const q = questions.value[idx]
     const result = await window.electronAPI.ai.grade({
@@ -159,7 +162,7 @@ async function gradeAt(idx: number) {
     })
     ElMessage.success(`第 ${idx + 1} 题评分完成`)
   } catch (err) {
-    ElMessage.error('评分失败：' + (err as Error).message)
+    errorMsg.value = (err as Error).message
   } finally {
     isGrading.value = false
   }
@@ -333,6 +336,16 @@ async function confirmScore() {
   border-radius: 6px;
   white-space: pre-wrap;
 }
+.error-message {
+  background: #fef0f0;
+  color: #f56c6c;
+  border: 1px solid #fde2e2;
+  border-radius: 6px;
+  padding: 10px;
+  font-size: 13px;
+  line-height: 1.5;
+  margin-bottom: 12px;
+}
 .teacher-score-input {
   margin-top: 4px;
 }