diff --git a/scripts/admin-test-env-modules/README.md b/scripts/admin-test-env-modules/README.md
index f46f6459f..57c81e7fb 100644
--- a/scripts/admin-test-env-modules/README.md
+++ b/scripts/admin-test-env-modules/README.md
@@ -120,6 +120,14 @@ node scripts/admin-test-env-acceptance.mjs --gateway <development-gateway> --ove
 node scripts/admin-test-env-acceptance.mjs --modules merchant-qualification-fixture,orders,inbound-measurement,phase3-container-loading,phase3-loading,phase3-container-overview,phase3-pda-convergence,phase3-evidence-gate,phase3-customs,phase3-loading-finalize
 ```
 
+只验证真实集装箱号晚补门禁时，使用正式可选参数 `LATE_CONTAINER_GATE_ONLY=1` 并仍从总入口执行 `phase3-loading`。该模式使用本轮 marker 独立造数，固定验证无号 push、订舱关联、整份预装确认、PDA claim/batch、无号 complete `A0409`、LOADING 阶段首次补号和补号后 complete 受理；随后允许后台命令停在 `CABINET_EVIDENCE/A0409`，以证明柜号门禁已经消失且下一门禁来自未上传的五类柜级证据。该模式不继续完整报关或 LOADED 链，也不得与完整链同时解释为同一终态验收。
+
+```powershell
+$env:LATE_CONTAINER_GATE_ONLY='1'
+node --env-file="$env:USERPROFILE\.codex\chongchong-global-test-acceptance.env" scripts/admin-test-env-acceptance.mjs --modules phase3-loading
+Remove-Item Env:LATE_CONTAINER_GATE_ONLY
+```
+
 该命令会写测试环境，必须另行获得当前对话授权。离线入口合同为 `../full-regression-entry-contract.test.mjs`，生产者与状态合同为 `phase3-producer-chain-contract.test.mjs`。
 
 ## 消息中心模块
diff --git a/scripts/admin-test-env-modules/phase3-loading.mjs b/scripts/admin-test-env-modules/phase3-loading.mjs
index 7e3535425..2d4bec66f 100644
--- a/scripts/admin-test-env-modules/phase3-loading.mjs
+++ b/scripts/admin-test-env-modules/phase3-loading.mjs
@@ -925,17 +925,20 @@ export async function run(context) {
       terminalResponse = await context.request('GET', taskDetailPath)
       if (terminalResponse.http === 200 && codeOf(terminalResponse) === '200') terminalTask = terminalResponse.body?.data
     }
-    context.assert(MODULE, '补号后的下一完成门禁返回明确终态而非柜号冲突', terminalResponse,
-      terminalTask?.workflowStatus !== 'PROCESSING'
-        && !String(terminalTask?.completionCommand?.failureMessage || '').includes('集装箱号'),
+    const nextStage = terminalTask?.completionCommand?.failureStage || null
+    const nextCode = terminalTask?.completionCommand?.failureCode || null
+    const nextMessage = String(terminalTask?.completionCommand?.failureMessage || '')
+    context.assert(MODULE, '补号后已越过柜号门禁并允许进入柜级证据门禁', terminalResponse,
+      !nextMessage.includes('集装箱号')
+        && (terminalTask?.workflowStatus !== 'PROCESSING'
+          || (nextStage === 'CABINET_EVIDENCE' && nextCode === 'A0409')),
       `workflow=${terminalTask?.workflowStatus || 'missing'}, stage=${terminalTask?.completionCommand?.failureStage || 'none'}, code=${terminalTask?.completionCommand?.failureCode || 'none'}, message=${terminalTask?.completionCommand?.failureMessage || 'none'}`, OPTIONS)
     context.createdResources.phase3LateContainerGate = {
       marker: context.marker, tenantId, inboundId, containerBookingId, cabinetNo: simulation.cabinetNo,
       oceanBookingId: bookingId, loadingPlanId, taskId: canonicalTaskId, containerNo,
       missingComplete: responseEvidence(missingComplete), fill: responseEvidence(transport),
       acceptedComplete: responseEvidence(acceptedComplete), finalWorkflow: terminalTask?.workflowStatus || null,
-      nextFailureStage: terminalTask?.completionCommand?.failureStage || null,
-      nextFailureCode: terminalTask?.completionCommand?.failureCode || null,
+      nextFailureStage: nextStage, nextFailureCode: nextCode,
     }
     return
   }
diff --git a/scripts/admin-test-env-modules/phase3-producer-chain-contract.test.mjs b/scripts/admin-test-env-modules/phase3-producer-chain-contract.test.mjs
index 8573d0854..de5bff40e 100644
--- a/scripts/admin-test-env-modules/phase3-producer-chain-contract.test.mjs
+++ b/scripts/admin-test-env-modules/phase3-producer-chain-contract.test.mjs
@@ -123,6 +123,25 @@ test('bridge loading confirms preload before creating and claiming the PDA task'
   assert.match(value, /bookingConfirmed\?\.oceanBooking\?\.status === 'RELEASED'/)
 })
 
+test('late container gate mode proves the final gate without requiring evidence completion', () => {
+  const value = source('./phase3-loading.mjs')
+  assert.match(value, /LATE_CONTAINER_GATE_ONLY = process\.env\.LATE_CONTAINER_GATE_ONLY === '1'/)
+  assertOrder(value, [
+    '无号模拟柜原地关联三期 RELEASED 订舱需求',
+    '计划级原子确认整份预装并触发唯一 PDA 任务',
+    '领取柜次 PDA 任务',
+    '原子提交柜次 PDA 整批拣货',
+    '无号拣货完成后 PDA complete 精确返回 A0409',
+    'LOADING 阶段通过预装运输信息首次补录真实柜号',
+    '补号后 complete 已越过柜号门禁并受理异步命令',
+    '补号后已越过柜号门禁并允许进入柜级证据门禁',
+  ])
+  assert.match(value, /String\(missingComplete\.body\?\.message \|\| ''\)\.includes\('真实集装箱号'\)/)
+  assert.match(value, /nextStage === 'CABINET_EVIDENCE' && nextCode === 'A0409'/)
+  assert.match(value, /!nextMessage\.includes\('集装箱号'\)/)
+  assert.match(value, /context\.createdResources\.phase3LateContainerGate/)
+})
+
 test('push replay and both conflict modes preserve the complete pre-PDA snapshot', () => {
   for (const file of ['./phase3-loading.mjs', './phase3-container-loading.mjs']) {
     const value = source(file)
@@ -220,7 +239,8 @@ test('PDA inventory snapshot gates batch and records the only safe mutation gap'
   ])
   assert.match(loading, /inventorySnapshotToken: refreshedInventory\.snapshotToken/)
   assert.match(loading, /warehouseId, loadingPlanId, containerBookingId,/)
-  assert.match(loading, /inventory\?\.currentContainerNo === containerNo/)
+  assert.match(loading,
+    /LATE_CONTAINER_GATE_ONLY \? inventory\?\.currentContainerNo == null : inventory\?\.currentContainerNo === containerNo/)
   const batchPayload = loading.slice(loading.indexOf('const batchPayload ='), loading.indexOf('const staleBatch ='))
   assert.doesNotMatch(batchPayload, /containerNo[,\s]/)
   assert.doesNotMatch(loading, /\/loading\/picking\/(?:start|complete)/)