diff --git a/app/tests/test_stock_detail_realtime.py b/app/tests/test_stock_detail_realtime.py
index b33743a..010d701 100644
--- a/app/tests/test_stock_detail_realtime.py
+++ b/app/tests/test_stock_detail_realtime.py
@@ -46,7 +46,7 @@ class RealtimeClientStub:
 
 
 class FixedMarketDatetime(datetime):
-    fixed_now = datetime.now().astimezone().replace(hour=10, minute=30, second=0, microsecond=0)
+    fixed_now = datetime(2026, 7, 31, 10, 30).astimezone()
 
     @classmethod
     def now(cls, tz=None):
@@ -54,7 +54,7 @@ class FixedMarketDatetime(datetime):
 
 
 class FixedPreopenDatetime(datetime):
-    fixed_now = datetime.now().astimezone().replace(hour=8, minute=45, second=0, microsecond=0)
+    fixed_now = datetime(2026, 7, 31, 8, 45).astimezone()
 
     @classmethod
     def now(cls, tz=None):
diff --git a/docs/migration/evidence/slice-11/README.md b/docs/migration/evidence/slice-11/README.md
index 5220cef..8dc16e6 100644
--- a/docs/migration/evidence/slice-11/README.md
+++ b/docs/migration/evidence/slice-11/README.md
@@ -3,6 +3,7 @@
 > 基线：`dec3cd12365df5e7d4c391369f14c457cf56d7d9`
 > 候选回档标签：`xiaobai-preservation-slice-11-candidate-20260731`
 > 严格审计候选标签：`xiaobai-preservation-slice-11-audit-candidate-20260731`
+> 跨日复验候选标签：`xiaobai-preservation-slice-11-audit-candidate-20260801`
 > 当前结论：自动验收完成，等待用户人工验收；尚未执行正式切换、Docker或NAS部署
 
 ## 1. 本切片做了什么
@@ -39,6 +40,12 @@
 | 数据库差分 | 62个schema对象、21张关键表全部一致 |
 | `git diff --check` | 通过 |
 
+2026-08-01 01:19（Asia/Shanghai）跨日复验时，原版与迁移版共用的实时详情测试暴露出
+测试夹具依赖运行日的问题：夹具在周六动态生成“今日”，而业务正确拒绝在非交易日合并实时
+行情。两版测试夹具同步固定到明确的工作日盘中/盘前时点，产品代码与行情日期规则未改。
+修复后统一验收命令再次通过302项测试、24个JavaScript文件、SQLite完整性和45项Playwright
+（2.0分钟）。
+
 早期切片的五个前端源码测试原本要求与未试删的`static/app.js`逐字符一致。本切片把它们统一到
 `preservation_helpers.assert_frontend_runtime_matches_audited_baseline`：只允许审计登记的五段原始
 行号被删除，任何其他新增、删除、重排或内容变化仍会使全部历史测试失败。
diff --git a/docs/migration/evidence/slice-11/completion-audit.md b/docs/migration/evidence/slice-11/completion-audit.md
index 8db1a6e..a04f2c8 100644
--- a/docs/migration/evidence/slice-11/completion-audit.md
+++ b/docs/migration/evidence/slice-11/completion-audit.md
@@ -58,6 +58,9 @@
 3. 原样资产清单、方法搬运和前端拆分明确标为迁移期工具；可能写文件的操作必须显式传路径或
    `--apply`，默认帮助路径不改文件。
 4. 新增维护工具契约测试，保证生成文件新鲜、所有工具`--help`可用，旧`static/`路径不会回归。
+5. 跨到2026-08-01周六后，实时详情测试中用运行日构造的“固定时间”不再代表交易日；原版和
+   候选测试夹具同步固定到明确工作日，消除跨午夜/周末不确定性。产品实现与交易日规则未改，
+   随后统一验收再次通过302项Python测试和45项Playwright。
 
 ## 4. 仍需用户完成的最终裁决
 
diff --git a/docs/migration/保真迁移状态.json b/docs/migration/保真迁移状态.json
index fc2be25..983a8c0 100644
--- a/docs/migration/保真迁移状态.json
+++ b/docs/migration/保真迁移状态.json
@@ -1,6 +1,6 @@
 {
   "schema_version": 1,
-  "updated_at": "2026-07-31T20:57:42+08:00",
+  "updated_at": "2026-08-01T01:19:27+08:00",
   "status": "awaiting_manual_acceptance",
   "migration_mode": "behavior_preserving_source_migration",
   "source_of_truth": "current_original_webapp_runtime_and_source",
@@ -12,7 +12,7 @@
   "current_slice": "slice-11-strict-completion-audit-maintenance-handoff",
   "last_completed_slice": "slice-10-frontend-shell-pages-components-css-mobile",
   "last_automated_slice": "slice-11-strict-completion-audit-maintenance-handoff",
-  "last_checkpoint": "xiaobai-preservation-slice-11-audit-candidate-20260731",
+  "last_checkpoint": "xiaobai-preservation-slice-11-audit-candidate-20260801",
   "next_action": "user_acceptance_on_local_port_8797_then_confirm_or_restore_each_trial_retirement; do_not_switch_docker_or_nas_before_approval",
   "authoritative_documents": [
     "AGENTS.md",
diff --git a/docs/migration/保真迁移账本.md b/docs/migration/保真迁移账本.md
index bf46442..4750116 100644
--- a/docs/migration/保真迁移账本.md
+++ b/docs/migration/保真迁移账本.md
@@ -216,6 +216,10 @@
   `app/config/architecture-inventory.json`；逐项结论见`completion-audit.md`。
 - 严格审计回档标签为`xiaobai-preservation-slice-11-audit-candidate-20260731`。该标签仍不是最终
   完成标签，未改变试删候选、人工验收和部署切换边界。
+- 2026-08-01跨日复验发现原版与候选共用的一项实时详情测试夹具依赖运行日，进入周六后会把
+  非交易日误作预期合并日；两版测试夹具同步固定到明确工作日，产品代码和日期规则未改。
+- 跨日修复后统一验收再次通过302项Python测试、24个JavaScript文件、SQLite完整性和45项
+  Playwright；新增候选回档标签`xiaobai-preservation-slice-11-audit-candidate-20260801`。
 
 ## 决策记录
 
diff --git a/tests/test_stock_detail_realtime.py b/tests/test_stock_detail_realtime.py
index cd98358..e9d91f2 100644
--- a/tests/test_stock_detail_realtime.py
+++ b/tests/test_stock_detail_realtime.py
@@ -46,7 +46,7 @@ class RealtimeClientStub:
 
 
 class FixedMarketDatetime(datetime):
-    fixed_now = datetime.now().astimezone().replace(hour=10, minute=30, second=0, microsecond=0)
+    fixed_now = datetime(2026, 7, 31, 10, 30).astimezone()
 
     @classmethod
     def now(cls, tz=None):
@@ -54,7 +54,7 @@ class FixedMarketDatetime(datetime):
 
 
 class FixedPreopenDatetime(datetime):
-    fixed_now = datetime.now().astimezone().replace(hour=8, minute=45, second=0, microsecond=0)
+    fixed_now = datetime(2026, 7, 31, 8, 45).astimezone()
 
     @classmethod
     def now(cls, tz=None):