diff --git a/docs/BRD_IMPLEMENTATION_AUDIT.md b/docs/BRD_IMPLEMENTATION_AUDIT.md
index 395d8d6f..4017850d 100644
--- a/docs/BRD_IMPLEMENTATION_AUDIT.md
+++ b/docs/BRD_IMPLEMENTATION_AUDIT.md
@@ -219,3 +219,4 @@
 - 2026-07-14 BRD L1 主页状态口径复核：驾驶舱阶段卡片原先把组织快照存在直接显示为“已接入”，SOP 文档数达到 5 直接显示为“已满足”；现统一改为“快照已存在”和“已处理文档、核心流程待确认”，避免首页状态越过正式组织同步和内容覆盖证据。
 - 2026-07-14 BRD 6.3 演示回退语义复核：资料处理中心接口失败时仍保留内置演示统计用于断网演示，但此前没有明确标识，可能被误读为真实库数据；现增加“当前显示演示数据，不代表真实库统计”提示，真实接口成功时不显示该提示。
 - 2026-07-14 最新线上只读复核：生产根站、`/h5/` 和租户接口均返回 `200`；线上管理端主资源 `index-CJZ3Ax3Z.js` SHA-256 为 `8b9278a26ccb760abce489b12a20b221748c64d4c4153613d2511777bb9677bc`，H5 主资源 `index-D4-NrEpb.js` SHA-256 为 `ab15bfd17cabe58e2f34b0ac61ee198a837128ed85dc6bb0ddf77bc3e22dcd9c`；当前本地构建为管理端 `index-Cin-vnjm.js` SHA-256 `ca210da50942693d52fb103fe34785be31e2bd263c7d11c0a60959c4dd90deaa`、H5 `index-Byx3WtY1.js` SHA-256 `1d2a9d8f947e8a198c31f15a5cf4b66ba4220b1f549c4376c72cc1da56b1d7eb`。本轮只读核对，未执行生产同步、重启或业务数据写入。
+- 2026-07-14 BRD 6.3 案例回退语义复核：案例列表接口失败时原先只弹一次提示并静默展示内置案例记录，可能被误读为真实案例库数据；现增加持久的“当前显示演示记录，不代表真实案例库数据”提示，接口恢复后自动消失。该修复只校正演示回退语义，不增加案例数量或替代正式案例资产。
diff --git a/frontend/src/views/knowledge/cases.vue b/frontend/src/views/knowledge/cases.vue
index a16b775f..34f44488 100644
--- a/frontend/src/views/knowledge/cases.vue
+++ b/frontend/src/views/knowledge/cases.vue
@@ -14,6 +14,15 @@
       </div>
     </section>
 
+    <el-alert
+      v-if="recordsFallback"
+      class="demo-data-alert"
+      title="案例列表接口暂不可用，当前显示演示记录，不代表真实案例库数据"
+      type="warning"
+      :closable="false"
+      show-icon
+    />
+
     <section class="case-grid">
       <article class="panel upload-panel">
         <div class="panel-title">
@@ -180,6 +189,7 @@ const apiTags = ref<CaseTag[]>([]);
 const apiRecord = ref<CaseRecord | null>(null);
 const apiSampleHint = ref('');
 const recordsLoading = ref(false);
+const recordsFallback = ref(false);
 const detailVisible = ref(false);
 const caseDetail = ref<CaseDetailResponse | null>(null);
 const projectExtOrgId = ref('');
@@ -276,8 +286,10 @@ async function loadCaseRecords() {
   try {
     const { data } = await getCaseRecords();
     records.value = data ?? [];
+    recordsFallback.value = false;
   } catch {
     records.value = [...baseRecords];
+    recordsFallback.value = true;
     ElMessage.warning('案例列表接口暂不可用，当前展示演示记录');
   } finally {
     recordsLoading.value = false;
diff --git a/scripts/demo-check.sh b/scripts/demo-check.sh
index 4541ae04..446e85b1 100755
--- a/scripts/demo-check.sh
+++ b/scripts/demo-check.sh
@@ -398,6 +398,7 @@ contains frontend/src/views/index.vue "待同步"
 contains backend/ruoyi-modules/ruoyi-aihr/src/main/java/org/dromara/aihr/service/AihrDashboardService.java "核心流程待确认"
 contains frontend/src/views/knowledge/sop.vue "训练题已生成"
 contains frontend/src/views/knowledge/processing.vue "当前显示演示数据，不代表真实库统计"
+contains frontend/src/views/knowledge/cases.vue "不代表真实案例库数据"
 contains frontend/src/views/system/model/index.vue "调用优先级"
 contains frontend/src/views/system/model/index.vue "提示词模板"
 contains frontend/src/views/system/prompts.vue "保存并启用"