diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
index b1c9bad..6a81d34 100644
--- a/android/app/build.gradle.kts
+++ b/android/app/build.gradle.kts
@@ -11,8 +11,8 @@ android {
         applicationId = "cn.ilapage.goauto.agent"
         minSdk = 23
         targetSdk = 34
-        versionCode = 85
-        versionName = "0.9.72"
+        versionCode = 86
+        versionName = "0.9.73"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 
diff --git a/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PddProductDetailCollector.kt b/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PddProductDetailCollector.kt
index 867c878..c660fb9 100644
--- a/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PddProductDetailCollector.kt
+++ b/android/app/src/main/java/cn/ilapage/goauto/agent/automation/PddProductDetailCollector.kt
@@ -186,7 +186,7 @@ object PddScreenParser {
     // purchase/order/payment controls must never become collection click targets.
     private val nonConfigurableClickDenylist = listOf("提交订单", "确认订单", "支付", "付款")
 
-    fun parse(snapshot: UiSnapshot, config: PddCollectorConfig, goodsId: String, evidence: PageEvidence?, purchaseContext: PurchasePanelContext? = null): ParsedPddScreen {
+    fun parse(snapshot: UiSnapshot, config: PddCollectorConfig, goodsId: String, evidence: PageEvidence?, purchaseContext: PurchasePanelContext? = null, collectionContext: Boolean = false): ParsedPddScreen {
         val visibleNodes = snapshot.nodes.filter { it.visible }
         val visible = visibleNodes.mapNotNull { node ->
             val descendants = descendants(node, visibleNodes)
@@ -323,12 +323,23 @@ object PddScreenParser {
             (headings.size >= 2 || (continuedPurchasePanel && headings.isNotEmpty())) &&
             dimensions.any { it.values.isNotEmpty() } && hasClose &&
             hasQuantityControls && hasPaymentArea && hasOrderSubmitAction
+        // Collection can start before any selection summary exists and with only
+        // one dimension visible. Keep this exception out of purchase parsing.
+        val singleDimensionCollectionPanel = collectionContext && purchaseContext == null &&
+            snapshot.packageName == PDD_PACKAGE && problem == null && !hasSelectionSummary &&
+            evidence != null && snapshot.packageName == evidence.packageName &&
+            snapshot.activityName == evidence.activityName &&
+            snapshot.nodes.any { it.visible && it.matches(evidence.selector) } &&
+            boundedScrollables.size == 1 && headedPanelScrollable != null && headings.size == 1 &&
+            dimensions.size == 1 && dimensions.single().values.isNotEmpty() &&
+            hasClose && hasQuantityControls && hasPaymentArea && hasOrderSubmitAction
         // Some selected-spec panels omit both the "已选" prefix and a confirm
         // button. Keep the same structural evidence required for checkout.
         val specPanelType = when {
             quickConfirmationEvidence -> SpecPanelType.QUICK_CONFIRMATION
             orderConfirmationEvidence -> SpecPanelType.ORDER_CONFIRMATION
             structuredSelectionPanel -> SpecPanelType.NORMAL_SCROLLABLE
+            singleDimensionCollectionPanel -> SpecPanelType.NORMAL_SCROLLABLE
             panelScrollable != null && (hasSelectionSummary || hasSubmitHint || (hasPanelTitle && hasPanelAction)) -> SpecPanelType.NORMAL_SCROLLABLE
             hasSelectionSummary && hasPanelTitle && hasPanelAction -> SpecPanelType.NON_SCROLLABLE_CONFIRMATION
             // Some PDD builds expose the complete selector as non-scrollable
@@ -1765,7 +1776,7 @@ class PddProductDetailCollector(
     }
 
     private fun parse(goodsId: String, config: PddCollectorConfig, evidence: PageEvidence) =
-        PddScreenParser.parse(driver.capture(), config, goodsId, evidence)
+        PddScreenParser.parse(driver.capture(), config, goodsId, evidence, collectionContext = true)
 
     private fun screenSignature(screen: ParsedPddScreen): List<String> = screen.sourceNodes.asSequence()
         .filter(SnapshotNode::visible)
diff --git a/android/app/src/test/java/cn/ilapage/goauto/agent/PddProductDetailCollectorTest.kt b/android/app/src/test/java/cn/ilapage/goauto/agent/PddProductDetailCollectorTest.kt
index a087ba0..3ca9d93 100644
--- a/android/app/src/test/java/cn/ilapage/goauto/agent/PddProductDetailCollectorTest.kt
+++ b/android/app/src/test/java/cn/ilapage/goauto/agent/PddProductDetailCollectorTest.kt
@@ -27,6 +27,52 @@ import org.junit.Assert.assertTrue
 import org.junit.Test
 
 class PddProductDetailCollectorTest {
+    private fun singleDimensionPanel(): UiSnapshot {
+        val snapshot = prefixlessPanel()
+        return snapshot.copy(nodes = snapshot.nodes.filterNot {
+            it.path.startsWith("scroll/size") || it.path == "info/summary"
+        }.map {
+            if (it.path == "root") it.copy(resourceId = "android:id/content", className = "android.widget.FrameLayout") else it
+        })
+    }
+
+    @Test fun `single dimension without summary is recognized only during collection`() {
+        for (heading in listOf("颜色分类", "尺码")) {
+            val snapshot = singleDimensionPanel().let { original ->
+                original.copy(nodes = original.nodes.map {
+                    if (it.path == "scroll/color-title") it.copy(text = heading) else it
+                })
+            }
+            assertFalse(PddScreenParser.parse(snapshot, config(), GOODS_ID, evidence()).specPanelOpen)
+            val parsed = PddScreenParser.parse(snapshot, config(), GOODS_ID, evidence(), collectionContext = true)
+            assertEquals(SpecPanelType.NORMAL_SCROLLABLE, parsed.specPanelType)
+            assertEquals("scroll", parsed.specPanelContainer?.path)
+            assertEquals(1, parsed.dimensions.size)
+            assertEquals(null, parsed.selectedSummary)
+            assertFalse(parsed.hasSelectionSummary)
+        }
+    }
+
+    @Test fun `single dimension collection requires all structural and page evidence`() {
+        val snapshot = singleDimensionPanel()
+        for (missing in listOf("close", "plus", "minus", "info/quantity", "payment", "submit", "scroll/color-title", "scroll/color", "root")) {
+            val changed = snapshot.copy(nodes = snapshot.nodes.filterNot { it.path == missing })
+            assertFalse(missing, PddScreenParser.parse(changed, config(), GOODS_ID, evidence(), collectionContext = true).specPanelOpen)
+        }
+        val secondScroll = node("other-scroll", "", 0, 500, 1080, 700, scrollable = true)
+        val secondSubmit = node("other-submit", "提交订单", 10, 2200, 300, 2300, clickable = true)
+        for (changed in listOf(
+            snapshot.copy(nodes = snapshot.nodes + secondScroll),
+            snapshot.copy(nodes = snapshot.nodes + secondSubmit),
+            snapshot.copy(packageName = "example.other"),
+            snapshot.copy(activityName = "example.OtherActivity"),
+            snapshot.copy(nodes = snapshot.nodes + node("captcha", "请完成安全验证", 0, 0, 600, 100)),
+        )) {
+            assertFalse(PddScreenParser.parse(changed, config(), GOODS_ID, evidence(), collectionContext = true).specPanelOpen)
+        }
+        assertFalse(PddScreenParser.parse(snapshot, config(), GOODS_ID, null, collectionContext = true).specPanelOpen)
+    }
+
     private fun prefixlessPanel(): UiSnapshot = UiSnapshot(PDD_PACKAGE, ACTIVITY, listOf(
         node("root", "", 0, 0, 1080, 2376),
         node("close", "关闭", 970, 270, 1050, 350, clickable = true),