diff --git a/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PurchaseLiveAutomation.kt b/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PurchaseLiveAutomation.kt
index 9133065..b55e9ea 100644
--- a/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PurchaseLiveAutomation.kt
+++ b/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PurchaseLiveAutomation.kt
@@ -162,24 +162,28 @@ class PurchaseLiveAutomation(
                 return unknown("PURCHASE_ORDER_UNEXPECTED_APP", "核单期间出现未授权应用")
             }
             if (restoredFromWechat) pddObservedAfterWechatRestore = true
-            val paymentVisible = isKnownPddPaymentActivity(snapshot) ||
-                currentLabels.any { label -> PAYMENT_MARKERS.any(label::contains) }
+            val paymentVisible = isKnownPddPaymentActivity(snapshot)
             val orderContextVisible = currentLabels.any { label -> ORDER_CONTEXT_MARKERS.any(label::contains) }
-            if (!paymentVisible && !orderContextVisible) {
+            val unpaidContextVisible = currentLabels.any { label -> UNPAID_MARKERS.any(label::contains) }
+            if (paymentVisible) {
+                if (!backedOutOfPayment) {
+                    backedOutOfPayment = true
+                    if (!driver.backPurchase()) {
+                        return unknown("PURCHASE_ORDER_PAYMENT_BACK_FAILED", "支付页无法安全返回订单详情")
+                    }
+                    pause(500)
+                } else {
+                    return unknown("PURCHASE_ORDER_PAYMENT_REPEATED", "支付页重复出现，已停止自动核单")
+                }
+                return@repeat
+            }
+            if (!orderContextVisible && !unpaidContextVisible) {
                 pause(ORDER_RESULT_SAMPLE_INTERVAL_MS)
                 return@repeat
             }
             currentLabels.forEach(labels::add)
             parseOrderEvidence(labels)?.let { return it }
-            if (paymentVisible && !backedOutOfPayment) {
-                backedOutOfPayment = true
-                if (!driver.backPurchase()) {
-                    return unknown("PURCHASE_ORDER_PAYMENT_BACK_FAILED", "支付页无法安全返回订单详情")
-                }
-                pause(500)
-            } else if (paymentVisible) {
-                return unknown("PURCHASE_ORDER_PAYMENT_REPEATED", "支付页重复出现，已停止自动核单")
-            } else if (index > 0 && index % 15 == 0) {
+            if (index > 0 && index % ORDER_RESULT_SCROLL_SAMPLE_INTERVAL == 0) {
                 driver.swipePurchase(SwipeDirection.UP, 400)
             }
             pause(ORDER_RESULT_SAMPLE_INTERVAL_MS)
@@ -435,6 +439,7 @@ class PurchaseLiveAutomation(
         const val ORDER_RESULT_MAX_SAMPLES = 60
         const val ORDER_RESULT_MAX_EMPTY_SAMPLES = 15
         const val ORDER_RESULT_WECHAT_RESTORE_MAX_SAMPLES = 15
+        const val ORDER_RESULT_SCROLL_SAMPLE_INTERVAL = 15
         const val ORDER_RESULT_SAMPLE_INTERVAL_MS = 200L
     }
 }
diff --git a/android/app/src/test/java/cn/ilapage/goauto/agent/PurchaseLiveAutomationTest.kt b/android/app/src/test/java/cn/ilapage/goauto/agent/PurchaseLiveAutomationTest.kt
index fd002e8..1f21c1a 100644
--- a/android/app/src/test/java/cn/ilapage/goauto/agent/PurchaseLiveAutomationTest.kt
+++ b/android/app/src/test/java/cn/ilapage/goauto/agent/PurchaseLiveAutomationTest.kt
@@ -120,6 +120,37 @@ class PurchaseLiveAutomationTest {
         assertFalse(driver.clicked.any { it.startsWith("微信") || it.contains("支付") })
     }
 
+    @Test
+    fun `payment page returns to folded unpaid order detail and scrolls to read evidence`() {
+        val driver = LiveDriver(chooserAfterSubmit = true, orderEvidenceBelowFold = true)
+        val automation = PurchaseLiveAutomation(driver, pause = {})
+        val address = automation.updateShippingAddress("_cg54")
+        automation.finalConfirmation(input().copy(addressSuffix = "_cg54"), address)
+        automation.submitOrderOnce()
+
+        val order = automation.readOrderResult()
+
+        assertEquals("PDD-202608210001", order?.orderNo)
+        assertEquals(2, driver.postSubmitBackCount)
+        assertEquals(1, driver.genericSwipes)
+        assertFalse(driver.clicked.any { it.contains("支付") })
+    }
+
+    @Test
+    fun `repeated known payment activity still stops without scrolling or payment clicks`() {
+        val driver = LiveDriver(postSubmitCaptureSequence = listOf("payment", "payment"))
+        val automation = PurchaseLiveAutomation(driver, pause = {})
+        val address = automation.updateShippingAddress("_cg55")
+        automation.finalConfirmation(input().copy(addressSuffix = "_cg55"), address)
+        automation.submitOrderOnce()
+
+        assertEquals(null, automation.readOrderResult())
+        assertEquals("PURCHASE_ORDER_PAYMENT_REPEATED", automation.lastOrderReadFailure?.code)
+        assertEquals(1, driver.postSubmitBackCount)
+        assertEquals(0, driver.genericSwipes)
+        assertFalse(driver.clicked.any { it.contains("支付") })
+    }
+
     @Test
     fun `WeChat login is not touched and PDD is restored once before reading order detail`() {
         val driver = LiveDriver(wechatLoginAfterSubmit = true)
@@ -310,6 +341,7 @@ class PurchaseLiveAutomationTest {
         private val savedTransitionHidesSuffix: Boolean = false,
         private val wechatLoginAfterSubmit: Boolean = false,
         private val wechatRestoreStuck: Boolean = false,
+        private val orderEvidenceBelowFold: Boolean = false,
         postSubmitCaptureSequence: List<String> = emptyList(),
     ) : PurchaseUiDriver {
         private var page = "confirmation"
@@ -359,6 +391,7 @@ class PurchaseLiveAutomationTest {
                 node("address-summary", if (savedTransitionHidesSuffix) "已保存的收货信息" else address.substring(address.lastIndexOf("_cg"))),
             ))
             "order" -> snapshot(listOf(node("status", "待付款"), node("order", "订单号：PDD-202608210001"), node("time", "下单时间：2026-08-21 10:30:00"), node("pay", "立即支付", clickable = true)))
+            "order-folded" -> snapshot(listOf(node("status", "待付款"), node("pay", "立即支付", clickable = true)))
             "order-no-time" -> snapshot(listOf(node("status", "待付款"), node("order", "订单号：PDD-202608210001"), node("pay", "去支付", clickable = true)))
             "chooser" -> UiSnapshot(if (trustedChooser) "android" else "example.untrusted", "com.android.internal.app.ChooserActivity", listOf(
                 node("chooser-title", "选择要使用的应用"), node("wechat-1", "微信"), node("wechat-2", "微信分身"),
@@ -428,7 +461,11 @@ class PurchaseLiveAutomationTest {
             address = value
             return FreshActionResult.SUCCESS
         }
-        override fun swipePurchase(direction: SwipeDirection, durationMs: Long): Boolean { genericSwipes++; return true }
+        override fun swipePurchase(direction: SwipeDirection, durationMs: Long): Boolean {
+            genericSwipes++
+            if (page == "order-folded" && direction == SwipeDirection.UP) page = "order"
+            return true
+        }
         override fun swipePurchaseIn(target: SnapshotNode, direction: SwipeDirection, durationMs: Long): Boolean {
             scopedSwipes++
             if (target.path == "panel" && direction == SwipeDirection.DOWN) addressVisible = true
@@ -439,7 +476,7 @@ class PurchaseLiveAutomationTest {
             if (page == "chooser" || page == "payment") postSubmitBackCount++
             page = when (page) {
                 "chooser" -> "payment"
-                "payment" -> "order"
+                "payment" -> if (orderEvidenceBelowFold) "order-folded" else "order"
                 else -> "confirmation"
             }
             return true