diff --git a/android/app/src/main/java/com/hyzq/boss/BossUi.java b/android/app/src/main/java/com/hyzq/boss/BossUi.java
index decbeb6..b14b8f5 100644
--- a/android/app/src/main/java/com/hyzq/boss/BossUi.java
+++ b/android/app/src/main/java/com/hyzq/boss/BossUi.java
@@ -681,6 +681,17 @@ public final class BossUi {
             boolean selectionMode,
             boolean selected,
             @Nullable View.OnClickListener listener
+    ) {
+        return buildConversationRow(context, row, selectionMode, selected, false, listener);
+    }
+
+    public static LinearLayout buildConversationRow(
+            Context context,
+            WechatSurfaceMapper.ConversationRow row,
+            boolean selectionMode,
+            boolean selected,
+            boolean highlighted,
+            @Nullable View.OnClickListener listener
     ) {
         LinearLayout card = new LinearLayout(context);
         card.setOrientation(LinearLayout.HORIZONTAL);
@@ -692,7 +703,7 @@ public final class BossUi {
         params.bottomMargin = dp(context, 1);
         card.setLayoutParams(params);
         card.setPadding(dp(context, 16), dp(context, 12), dp(context, 16), dp(context, 12));
-        card.setBackgroundColor(row.pinnedConversation ? PINNED_ROW_BG : Color.WHITE);
+        card.setBackgroundColor(highlighted ? Color.parseColor("#EAF8F0") : row.pinnedConversation ? PINNED_ROW_BG : Color.WHITE);
         card.setElevation(0f);
         if (listener != null) {
             card.setClickable(true);
@@ -789,6 +800,23 @@ public final class BossUi {
             trailingColumn.addView(selector);
         }
 
+        if (highlighted) {
+            TextView targetView = new TextView(context);
+            targetView.setText("目标线程");
+            targetView.setTextSize(11);
+            targetView.setTypeface(Typeface.DEFAULT_BOLD);
+            targetView.setTextColor(context.getColor(R.color.boss_green));
+            targetView.setBackground(createRoundedBackground(Color.parseColor("#E7F7EE"), dp(context, 9)));
+            targetView.setPadding(dp(context, 7), dp(context, 3), dp(context, 7), dp(context, 3));
+            LinearLayout.LayoutParams targetParams = new LinearLayout.LayoutParams(
+                    LinearLayout.LayoutParams.WRAP_CONTENT,
+                    LinearLayout.LayoutParams.WRAP_CONTENT
+            );
+            targetParams.topMargin = dp(context, 8);
+            targetView.setLayoutParams(targetParams);
+            trailingColumn.addView(targetView);
+        }
+
         if (row.unreadCount > 0) {
             TextView unreadView = new TextView(context);
             unreadView.setText(row.unreadCount > 99 ? "99+" : String.valueOf(row.unreadCount));
diff --git a/android/app/src/main/java/com/hyzq/boss/ConversationFolderActivity.java b/android/app/src/main/java/com/hyzq/boss/ConversationFolderActivity.java
index 2702a9f..f976533 100644
--- a/android/app/src/main/java/com/hyzq/boss/ConversationFolderActivity.java
+++ b/android/app/src/main/java/com/hyzq/boss/ConversationFolderActivity.java
@@ -8,19 +8,41 @@ import androidx.annotation.Nullable;
 import org.json.JSONArray;
 import org.json.JSONObject;
 
+import java.util.ArrayList;
+
 public class ConversationFolderActivity extends BossScreenActivity {
     public static final String EXTRA_FOLDER_KEY = "folder_key";
     public static final String EXTRA_FOLDER_NAME = "folder_name";
+    public static final String EXTRA_TARGET_PROJECT_ID = "target_project_id";
+    public static final String EXTRA_TARGET_PROJECT_IDS = "target_project_ids";
+    public static final String EXTRA_TARGET_PROJECT_LABEL = "target_project_label";
 
     private String folderKey;
     private String folderName;
+    private String targetProjectId;
+    private ArrayList<String> targetProjectIds;
+    private String targetProjectLabel;
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         folderKey = getIntent().getStringExtra(EXTRA_FOLDER_KEY);
         folderName = getIntent().getStringExtra(EXTRA_FOLDER_NAME);
-        configureScreen(folderName == null || folderName.isEmpty() ? "项目线程" : folderName, "同一项目下的线程列表");
+        targetProjectId = getIntent().getStringExtra(EXTRA_TARGET_PROJECT_ID);
+        targetProjectIds = new ArrayList<>();
+        String[] extraTargetProjectIds = getIntent().getStringArrayExtra(EXTRA_TARGET_PROJECT_IDS);
+        if (extraTargetProjectIds != null) {
+            for (String item : extraTargetProjectIds) {
+                if (item != null) {
+                    String trimmed = item.trim();
+                    if (!trimmed.isEmpty()) {
+                        targetProjectIds.add(trimmed);
+                    }
+                }
+            }
+        }
+        targetProjectLabel = getIntent().getStringExtra(EXTRA_TARGET_PROJECT_LABEL);
+        configureScreen(folderName == null || folderName.isEmpty() ? "项目线程" : folderName, "0 个线程");
         refreshButton.setVisibility(android.view.View.GONE);
         setHeaderAction("...", v -> showMoreMenu());
         reload();
@@ -59,13 +81,12 @@ public class ConversationFolderActivity extends BossScreenActivity {
         }
 
         String resolvedFolderName = folder.optString("folderLabel", folderName == null ? "项目线程" : folderName);
-        String deviceName = folder.optString("deviceName", "");
         int threadCount = folder.optInt("threadCount", 0);
-        configureScreen(resolvedFolderName, deviceName.isEmpty() ? "项目线程" : deviceName);
+        configureScreen(resolvedFolderName, threadCount + " 个线程");
         appendContent(BossUi.buildSoftPanel(
                 this,
+                "项目内部线程页",
                 resolvedFolderName,
-                (deviceName.isEmpty() ? "当前设备" : deviceName) + "\n共 " + threadCount + " 个线程",
                 "点击线程后进入具体聊天窗口。"
         ));
 
@@ -75,26 +96,97 @@ public class ConversationFolderActivity extends BossScreenActivity {
             setRefreshing(false);
             return;
         }
-        for (int i = 0; i < threads.length(); i++) {
-            JSONObject item = threads.optJSONObject(i);
-            if (item == null) continue;
-            String projectId = item.optString("projectId", "");
-            WechatSurfaceMapper.ConversationRow row = WechatSurfaceMapper.toConversationRow(item);
-            appendContent(BossUi.buildConversationRow(
+
+        ArrayList<Integer> targetIndices = resolveTargetThreadIndices(threads);
+        if (!targetIndices.isEmpty()) {
+            String matchedLabel = targetProjectLabel;
+            if ((matchedLabel == null || matchedLabel.isEmpty())) {
+                JSONObject firstTarget = threads.optJSONObject(targetIndices.get(0));
+                if (firstTarget != null) {
+                    matchedLabel = firstTarget.optString("threadTitle", "");
+                }
+            }
+            appendContent(BossUi.buildSoftPanel(
                     this,
-                    row,
-                    v -> {
-                        if (projectId.isEmpty()) {
-                            showMessage("缺少 projectId");
-                            return;
-                        }
-                        openProject(projectId, row.threadTitle);
-                    }
+                    "已定位到目标线程",
+                    matchedLabel == null || matchedLabel.isEmpty()
+                            ? "文件夹页已打开，并将匹配线程置顶显示。"
+                            : matchedLabel,
+                    targetIndices.size() + " 个匹配项已置顶"
             ));
         }
+
+        for (int i = 0; i < targetIndices.size(); i++) {
+            renderThreadAtIndex(threads, targetIndices.get(i), true);
+        }
+        for (int i = 0; i < threads.length(); i++) {
+            if (!targetIndices.contains(i)) {
+                renderThreadAtIndex(threads, i, false);
+            }
+        }
         setRefreshing(false);
     }
 
+    private void renderThreadAtIndex(JSONArray threads, int index, boolean highlighted) {
+        JSONObject item = threads.optJSONObject(index);
+        if (item == null) return;
+        String projectId = item.optString("projectId", "");
+        WechatSurfaceMapper.ConversationRow row = WechatSurfaceMapper.toConversationRow(item);
+        appendContent(BossUi.buildConversationRow(
+                this,
+                row,
+                false,
+                false,
+                highlighted,
+                v -> {
+                    if (projectId.isEmpty()) {
+                        showMessage("缺少 projectId");
+                        return;
+                    }
+                    openProject(projectId, row.threadTitle);
+                }
+        ));
+    }
+
+    private ArrayList<Integer> resolveTargetThreadIndices(JSONArray threads) {
+        ArrayList<Integer> targetIndices = new ArrayList<>();
+        if (threads == null || threads.length() == 0) {
+            return targetIndices;
+        }
+
+        if (!targetProjectIds.isEmpty()) {
+            for (int i = 0; i < threads.length(); i++) {
+                JSONObject item = threads.optJSONObject(i);
+                if (item == null) continue;
+                String projectId = item.optString("projectId", "");
+                if (targetProjectIds.contains(projectId)) {
+                    targetIndices.add(i);
+                }
+            }
+            return targetIndices;
+        }
+
+        if (targetProjectId != null && !targetProjectId.isEmpty()) {
+            for (int i = 0; i < threads.length(); i++) {
+                JSONObject item = threads.optJSONObject(i);
+                if (item != null && targetProjectId.equals(item.optString("projectId", ""))) {
+                    targetIndices.add(i);
+                    return targetIndices;
+                }
+            }
+        }
+
+        if (targetProjectLabel != null && !targetProjectLabel.isEmpty()) {
+            for (int i = 0; i < threads.length(); i++) {
+                JSONObject item = threads.optJSONObject(i);
+                if (item != null && targetProjectLabel.equals(item.optString("threadTitle", ""))) {
+                    targetIndices.add(i);
+                }
+            }
+        }
+        return targetIndices;
+    }
+
     private void openProject(String projectId, String projectName) {
         Intent intent = new Intent(this, ProjectDetailActivity.class);
         intent.putExtra(ProjectDetailActivity.EXTRA_PROJECT_ID, projectId);
diff --git a/android/app/src/main/java/com/hyzq/boss/MainActivity.java b/android/app/src/main/java/com/hyzq/boss/MainActivity.java
index 24e289d..1c4e826 100644
--- a/android/app/src/main/java/com/hyzq/boss/MainActivity.java
+++ b/android/app/src/main/java/com/hyzq/boss/MainActivity.java
@@ -1091,7 +1091,13 @@ public class MainActivity extends AppCompatActivity {
                                         showMessage("缺少 folderKey");
                                         return;
                                     }
-                                    openConversationFolder(folderKey, resolveConversationFolderName(item, row));
+                                    openConversationFolder(
+                                            folderKey,
+                                            resolveConversationFolderName(item, row),
+                                            item.optString("searchMatchProjectId", ""),
+                                            item.optJSONArray("searchMatchProjectIds"),
+                                            item.optString("searchMatchLabel", "")
+                                    );
                                     return;
                                 }
                                 if (projectId.isEmpty()) {
@@ -1319,6 +1325,11 @@ public class MainActivity extends AppCompatActivity {
                     String matchLabel = resolveConversationSearchMatchLabel(item, query);
                     if (!matchLabel.isEmpty()) {
                         filteredItem.put("searchMatchLabel", matchLabel);
+                        JSONArray matchProjectIds = resolveConversationSearchMatchTargetIds(item, matchLabel);
+                        if (matchProjectIds.length() > 0) {
+                            filteredItem.put("searchMatchProjectId", matchProjectIds.optString(0, ""));
+                            filteredItem.put("searchMatchProjectIds", matchProjectIds);
+                        }
                     }
                 } catch (Exception ignored) {
                     // Keep the original item if JSON cloning fails.
@@ -1466,6 +1477,33 @@ public class MainActivity extends AppCompatActivity {
         return "";
     }
 
+    private static JSONArray resolveConversationSearchMatchTargetIds(JSONObject item, String matchLabel) {
+        JSONArray matchedProjectIds = new JSONArray();
+        if (item == null || matchLabel == null || matchLabel.isEmpty()) {
+            return matchedProjectIds;
+        }
+        JSONArray searchAliases = item.optJSONArray("searchAliases");
+        JSONArray searchTargetProjectIds = item.optJSONArray("searchTargetProjectIds");
+        if (searchAliases == null || searchTargetProjectIds == null) {
+            JSONArray legacyTargets = item.optJSONArray("searchAliasTargets");
+            if (searchAliases == null || legacyTargets == null) {
+                return matchedProjectIds;
+            }
+            searchTargetProjectIds = legacyTargets;
+        }
+        int limit = Math.min(searchAliases.length(), searchTargetProjectIds.length());
+        for (int i = 0; i < limit; i++) {
+            String alias = searchAliases.optString(i, "").trim();
+            if (!alias.isEmpty() && alias.equals(matchLabel)) {
+                String projectId = searchTargetProjectIds.optString(i, "").trim();
+                if (!projectId.isEmpty()) {
+                    matchedProjectIds.put(projectId);
+                }
+            }
+        }
+        return matchedProjectIds;
+    }
+
     private void renderDevicesRoot() {
         if (screenList == null) {
             return;
@@ -1583,9 +1621,37 @@ public class MainActivity extends AppCompatActivity {
     }
 
     private void openConversationFolder(String folderKey, String folderName) {
+        openConversationFolder(folderKey, folderName, "", null, "");
+    }
+
+    private void openConversationFolder(
+            String folderKey,
+            String folderName,
+            String targetProjectId,
+            JSONArray targetProjectIds,
+            String targetProjectLabel
+    ) {
         Intent intent = new Intent(this, ConversationFolderActivity.class);
         intent.putExtra(ConversationFolderActivity.EXTRA_FOLDER_KEY, folderKey);
         intent.putExtra(ConversationFolderActivity.EXTRA_FOLDER_NAME, folderName);
+        if (targetProjectId != null && !targetProjectId.isEmpty()) {
+            intent.putExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_ID, targetProjectId);
+        }
+        if (targetProjectIds != null && targetProjectIds.length() > 0) {
+            ArrayList<String> ids = new ArrayList<>();
+            for (int i = 0; i < targetProjectIds.length(); i++) {
+                String id = targetProjectIds.optString(i, "").trim();
+                if (!id.isEmpty()) {
+                    ids.add(id);
+                }
+            }
+            if (!ids.isEmpty()) {
+                intent.putExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_IDS, ids.toArray(new String[0]));
+            }
+        }
+        if (targetProjectLabel != null && !targetProjectLabel.isEmpty()) {
+            intent.putExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_LABEL, targetProjectLabel);
+        }
         startActivity(intent);
     }
 
diff --git a/android/app/src/test/java/com/hyzq/boss/ConversationFolderActivityTest.java b/android/app/src/test/java/com/hyzq/boss/ConversationFolderActivityTest.java
index cf727f6..c7caa16 100644
--- a/android/app/src/test/java/com/hyzq/boss/ConversationFolderActivityTest.java
+++ b/android/app/src/test/java/com/hyzq/boss/ConversationFolderActivityTest.java
@@ -45,11 +45,15 @@ public class ConversationFolderActivityTest {
         ImageButton headerAction = activity.findViewById(R.id.screen_header_action);
         ImageButton refreshButton = activity.findViewById(R.id.screen_refresh_button);
         LinearLayout content = activity.findViewById(R.id.screen_content);
+        TextView titleView = activity.findViewById(R.id.screen_title);
+        TextView subtitleView = activity.findViewById(R.id.screen_subtitle);
 
         assertEquals("更多", String.valueOf(headerAction.getContentDescription()));
         assertEquals(View.GONE, refreshButton.getVisibility());
+        assertEquals("Talking", String.valueOf(titleView.getText()));
+        assertEquals("3 个线程", String.valueOf(subtitleView.getText()));
         assertTrue(viewTreeContainsText(content, "Talking"));
-        assertTrue(viewTreeContainsText(content, "查询腾讯HAI GPU服务器"));
+        assertTrue(viewTreeContainsText(content, "项目内部线程页"));
 
         ReflectionHelpers.callInstanceMethod(activity, "showMoreMenu");
 
@@ -59,27 +63,79 @@ public class ConversationFolderActivityTest {
         assertTrue(viewTreeContainsText(listView.getAdapter().getView(0, null, listView), "刷新"));
     }
 
+    @Test
+    public void conversationFolderHighlightsTargetThreadWhenSearchTargetIsProvided() throws Exception {
+        Intent intent = new Intent()
+                .putExtra(ConversationFolderActivity.EXTRA_FOLDER_KEY, "talking")
+                .putExtra(ConversationFolderActivity.EXTRA_FOLDER_NAME, "Talking")
+                .putExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_ID, "project-1")
+                .putExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_IDS, new String[]{"project-1", "project-2"})
+                .putExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_LABEL, "发布回滚");
+        TestConversationFolderActivity activity = Robolectric
+                .buildActivity(TestConversationFolderActivity.class, intent)
+                .setup()
+                .get();
+
+        ReflectionHelpers.callInstanceMethod(
+                activity,
+                "renderFolder",
+                ReflectionHelpers.ClassParameter.from(JSONObject.class, buildFolderPayload())
+        );
+
+        LinearLayout content = activity.findViewById(R.id.screen_content);
+        assertTrue(viewTreeContainsText(content, "已定位到目标线程"));
+        assertTrue(viewTreeContainsText(content, "目标线程"));
+        assertTrue(viewTreeContainsText(content, "发布回滚"));
+        assertEquals(2, countTextOccurrences(content, "目标线程"));
+        assertTrue(countTextOccurrences(content, "发布回滚") >= 3);
+        assertEquals(0, countTextOccurrences(content, "project-1"));
+    }
+
     private static JSONObject buildFolderPayload() throws Exception {
         JSONArray threads = new JSONArray()
                 .put(new JSONObject()
                         .put("projectId", "project-1")
-                        .put("threadTitle", "查询腾讯HAI GPU服务器")
+                        .put("threadTitle", "发布回滚")
                         .put("folderLabel", "Talking")
                         .put("lastMessagePreview", "已从设备导入线程")
                         .put("timeLabel", "02:28"))
                 .put(new JSONObject()
                         .put("projectId", "project-2")
-                        .put("threadTitle", "状态栏显示CPU和内存")
+                        .put("threadTitle", "发布回滚")
                         .put("folderLabel", "Talking")
                         .put("lastMessagePreview", "已从设备导入线程")
-                        .put("timeLabel", "02:12"));
+                        .put("timeLabel", "02:12"))
+                .put(new JSONObject()
+                        .put("projectId", "project-3")
+                        .put("threadTitle", "日志收口")
+                        .put("folderLabel", "Talking")
+                        .put("lastMessagePreview", "已从设备导入线程")
+                        .put("timeLabel", "02:05"));
         return new JSONObject()
                 .put("folderLabel", "Talking")
                 .put("deviceName", "Mac Studio")
-                .put("threadCount", 2)
+                .put("threadCount", 3)
                 .put("threads", threads);
     }
 
+    private static int countTextOccurrences(View root, String expectedText) {
+        int count = 0;
+        if (root instanceof TextView) {
+            CharSequence text = ((TextView) root).getText();
+            if (expectedText.contentEquals(text)) {
+                count += 1;
+            }
+        }
+        if (!(root instanceof ViewGroup)) {
+            return count;
+        }
+        ViewGroup group = (ViewGroup) root;
+        for (int index = 0; index < group.getChildCount(); index += 1) {
+            count += countTextOccurrences(group.getChildAt(index), expectedText);
+        }
+        return count;
+    }
+
     private static boolean viewTreeContainsText(View root, String expectedText) {
         if (root instanceof TextView) {
             CharSequence text = ((TextView) root).getText();
diff --git a/android/app/src/test/java/com/hyzq/boss/MainActivityConversationSearchTest.java b/android/app/src/test/java/com/hyzq/boss/MainActivityConversationSearchTest.java
index 73cca64..97c9a3f 100644
--- a/android/app/src/test/java/com/hyzq/boss/MainActivityConversationSearchTest.java
+++ b/android/app/src/test/java/com/hyzq/boss/MainActivityConversationSearchTest.java
@@ -59,7 +59,8 @@ public class MainActivityConversationSearchTest {
                         .put("projectTitle", "Boss")
                         .put("threadTitle", "Boss")
                         .put("folderLabel", "2 个线程 · 最近：发布回滚")
-                        .put("searchAliases", new JSONArray().put("发布回滚").put("Android UI 收尾"))
+                        .put("searchAliases", new JSONArray().put("发布回滚").put("发布回滚").put("Android UI 收尾"))
+                        .put("searchTargetProjectIds", new JSONArray().put("thread-revert-1").put("thread-revert-2").put("thread-ui"))
                         .put("lastMessagePreview", "最近：发布回滚")
                         .put("latestReplyLabel", "11:00"));
 
@@ -68,6 +69,9 @@ public class MainActivityConversationSearchTest {
         assertEquals(1, filtered.length());
         assertEquals("folder-boss", filtered.optJSONObject(0).optString("projectId", ""));
         assertEquals("发布回滚", filtered.optJSONObject(0).optString("searchMatchLabel", ""));
+        assertEquals("thread-revert-1", filtered.optJSONObject(0).optString("searchMatchProjectId", ""));
+        assertEquals(2, filtered.optJSONObject(0).optJSONArray("searchMatchProjectIds").length());
+        assertEquals("thread-revert-2", filtered.optJSONObject(0).optJSONArray("searchMatchProjectIds").optString(1, ""));
     }
 
     @Test
@@ -132,7 +136,8 @@ public class MainActivityConversationSearchTest {
                         .put("threadTitle", "Boss")
                         .put("lastMessagePreview", "最近：发布回滚")
                         .put("latestReplyLabel", "11:00")
-                        .put("searchAliases", new JSONArray().put("发布回滚").put("Android UI 收尾"))));
+                        .put("searchAliases", new JSONArray().put("发布回滚").put("发布回滚").put("Android UI 收尾"))
+                        .put("searchTargetProjectIds", new JSONArray().put("thread-revert-1").put("thread-revert-2").put("thread-ui"))));
 
         ReflectionHelpers.callInstanceMethod(activity, "showContent");
         Shadows.shadowOf(activity.getMainLooper()).idle();
@@ -154,6 +159,10 @@ public class MainActivityConversationSearchTest {
         assertEquals(ConversationFolderActivity.class.getName(), nextIntent.getComponent().getClassName());
         assertEquals("mac-studio:boss", nextIntent.getStringExtra(ConversationFolderActivity.EXTRA_FOLDER_KEY));
         assertEquals("Boss", nextIntent.getStringExtra(ConversationFolderActivity.EXTRA_FOLDER_NAME));
+        assertEquals("thread-revert-1", nextIntent.getStringExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_ID));
+        assertEquals(2, nextIntent.getStringArrayExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_IDS).length);
+        assertEquals("thread-revert-2", nextIntent.getStringArrayExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_IDS)[1]);
+        assertEquals("发布回滚", nextIntent.getStringExtra(ConversationFolderActivity.EXTRA_TARGET_PROJECT_LABEL));
     }
 
     private static JSONArray buildConversations() throws Exception {
diff --git a/android/app/src/test/java/com/hyzq/boss/MainActivityRealtimeTest.java b/android/app/src/test/java/com/hyzq/boss/MainActivityRealtimeTest.java
index 184ef6e..7d4194a 100644
--- a/android/app/src/test/java/com/hyzq/boss/MainActivityRealtimeTest.java
+++ b/android/app/src/test/java/com/hyzq/boss/MainActivityRealtimeTest.java
@@ -239,6 +239,27 @@ public class MainActivityRealtimeTest {
         assertEquals(0, apiClient.conversationsCalls);
     }
 
+    @Test
+    public void refreshConversationsData_fallsBackToFlatConversationsFeedWhenHomeFeedFails() throws Exception {
+        MainActivity activity = Robolectric.buildActivity(MainActivity.class).setup().resume().get();
+        Shadows.shadowOf(activity.getMainLooper()).idle();
+
+        RecordingRejectedConversationSourceClient apiClient = new RecordingRejectedConversationSourceClient(
+                activity.getSharedPreferences("test-boss-api", Context.MODE_PRIVATE)
+        );
+        ReflectionHelpers.setField(activity, "apiClient", apiClient);
+        ReflectionHelpers.callInstanceMethod(activity, "showContent");
+        Shadows.shadowOf(activity.getMainLooper()).idle();
+
+        activity.refreshConversationsData();
+        waitFor(() -> apiClient.homeCalls > 0 && apiClient.conversationsCalls > 0);
+
+        assertEquals(1, apiClient.homeCalls);
+        assertEquals(1, apiClient.conversationsCalls);
+        JSONArray conversationsData = ReflectionHelpers.getField(activity, "conversationsData");
+        assertEquals("flat-thread", conversationsData.optJSONObject(0).optString("projectId", ""));
+    }
+
     @Test
     public void refreshAllData_prefersConversationHomeFeedOverFlatConversationsFeed() throws Exception {
         MainActivity activity = Robolectric.buildActivity(MainActivity.class).setup().resume().get();
@@ -262,6 +283,31 @@ public class MainActivityRealtimeTest {
         assertEquals(0, apiClient.conversationsCalls);
     }
 
+    @Test
+    public void refreshAllData_fallsBackToFlatConversationsFeedWhenHomeFeedFails() throws Exception {
+        MainActivity activity = Robolectric.buildActivity(MainActivity.class).setup().resume().get();
+        Shadows.shadowOf(activity.getMainLooper()).idle();
+
+        RecordingRejectedConversationSourceClient apiClient = new RecordingRejectedConversationSourceClient(
+                activity.getSharedPreferences("test-boss-api", Context.MODE_PRIVATE)
+        );
+        ReflectionHelpers.setField(activity, "apiClient", apiClient);
+        ReflectionHelpers.callInstanceMethod(activity, "showContent");
+        Shadows.shadowOf(activity.getMainLooper()).idle();
+
+        ReflectionHelpers.callInstanceMethod(
+                activity,
+                "refreshAllData",
+                ReflectionHelpers.ClassParameter.from(JSONObject.class, new JSONObject())
+        );
+        waitFor(() -> apiClient.homeCalls > 0 && apiClient.conversationsCalls > 0);
+
+        assertEquals(1, apiClient.homeCalls);
+        assertEquals(1, apiClient.conversationsCalls);
+        JSONArray conversationsData = ReflectionHelpers.getField(activity, "conversationsData");
+        assertEquals("flat-thread", conversationsData.optJSONObject(0).optString("projectId", ""));
+    }
+
     private static void waitFor(BooleanSupplier condition) throws Exception {
         long deadlineAt = System.currentTimeMillis() + 2_000L;
         while (System.currentTimeMillis() < deadlineAt) {
@@ -298,6 +344,81 @@ public class MainActivityRealtimeTest {
         }
     }
 
+    private static final class RecordingRejectedConversationSourceClient extends BossApiClient {
+        int homeCalls;
+        int conversationsCalls;
+        int sessionCalls;
+        int devicesCalls;
+        int settingsCalls;
+        int otaCalls;
+
+        RecordingRejectedConversationSourceClient(android.content.SharedPreferences prefs) {
+            super(prefs, "https://boss.hyzq.net");
+        }
+
+        @Override
+        public ApiResponse getConversationHome() throws java.io.IOException, org.json.JSONException {
+            homeCalls += 1;
+            return new ApiResponse(200, new JSONObject()
+                    .put("ok", false)
+                    .put("message", "HOME_UNAVAILABLE"));
+        }
+
+        @Override
+        public ApiResponse getConversations() throws java.io.IOException, org.json.JSONException {
+            conversationsCalls += 1;
+            return new ApiResponse(200, new JSONObject()
+                    .put("ok", true)
+                    .put("conversations", buildFlatConversations()));
+        }
+
+        @Override
+        public ApiResponse getSession() throws java.io.IOException, org.json.JSONException {
+            sessionCalls += 1;
+            return new ApiResponse(200, new JSONObject()
+                    .put("ok", true)
+                    .put("session", new JSONObject()
+                            .put("account", "17600003315")
+                            .put("displayName", "Boss 超级管理员")));
+        }
+
+        @Override
+        public ApiResponse getDevices() throws java.io.IOException, org.json.JSONException {
+            devicesCalls += 1;
+            return new ApiResponse(200, new JSONObject()
+                    .put("ok", true)
+                    .put("devices", new JSONArray()));
+        }
+
+        @Override
+        public ApiResponse getSettings() throws java.io.IOException, org.json.JSONException {
+            settingsCalls += 1;
+            return new ApiResponse(200, new JSONObject()
+                    .put("ok", true)
+                    .put("settings", new JSONObject().put("preferredEntryPoint", "conversations"))
+                    .put("user", new JSONObject()));
+        }
+
+        @Override
+        public ApiResponse getOtaStatus() throws java.io.IOException, org.json.JSONException {
+            otaCalls += 1;
+            return new ApiResponse(200, new JSONObject()
+                    .put("ok", true)
+                    .put("hasOta", false));
+        }
+
+        private static JSONArray buildFlatConversations() throws org.json.JSONException {
+            return new JSONArray().put(new JSONObject()
+                    .put("projectId", "flat-thread")
+                    .put("conversationType", "single_device")
+                    .put("projectTitle", "发布回滚")
+                    .put("threadTitle", "发布回滚")
+                    .put("folderLabel", "Boss")
+                    .put("lastMessagePreview", "最近：发布回滚")
+                    .put("latestReplyLabel", "11:00"));
+        }
+    }
+
     private static final class RecordingConversationSourceClient extends BossApiClient {
         int homeCalls;
         int conversationsCalls;
diff --git a/src/lib/boss-projections.ts b/src/lib/boss-projections.ts
index 61dbcec..2a4e979 100644
--- a/src/lib/boss-projections.ts
+++ b/src/lib/boss-projections.ts
@@ -45,6 +45,7 @@ export interface ConversationItem {
   folderKey?: string;
   threadCount?: number;
   searchAliases?: string[];
+  searchTargetProjectIds?: string[];
   preview: string;
   lastMessagePreview: string;
   activityIconCount: number;
@@ -470,14 +471,19 @@ function sortConversationItems(items: ConversationItem[]) {
 
 function buildFolderSearchAliases(items: ConversationItem[]) {
   const aliases: string[] = [];
-  const seen = new Set<string>();
+  const targetProjectIds: string[] = [];
   for (const item of items) {
     const alias = (item.threadTitle?.trim() || item.projectTitle?.trim() || "").trim();
-    if (!alias || seen.has(alias)) continue;
+    if (!alias) continue;
     aliases.push(alias);
-    seen.add(alias);
+    targetProjectIds.push(item.projectId);
   }
-  return aliases.length > 0 ? aliases : undefined;
+  return aliases.length > 0
+    ? {
+        aliases,
+        targetProjectIds,
+      }
+    : undefined;
 }
 
 export function getConversationItems(state: BossState): ConversationItem[] {
@@ -541,6 +547,7 @@ export function getConversationHomeItems(state: BossState): ConversationItem[] {
         return b.latestReplyAt.localeCompare(a.latestReplyAt);
       })[0];
     const recentThreadLabel = latestItem.threadTitle.trim();
+    const searchAliases = buildFolderSearchAliases(items);
     passthrough.push({
       conversationId: `folder-${folderKey}`,
       conversationType: "folder_archive",
@@ -554,7 +561,12 @@ export function getConversationHomeItems(state: BossState): ConversationItem[] {
       folderLabel: recentThreadLabel ? `${items.length} 个线程 · 最近：${recentThreadLabel}` : `${items.length} 个线程`,
       folderKey,
       threadCount: items.length,
-      searchAliases: buildFolderSearchAliases(items),
+      ...(searchAliases
+        ? {
+            searchAliases: searchAliases.aliases,
+            searchTargetProjectIds: searchAliases.targetProjectIds,
+          }
+        : {}),
       preview:
         latestItem.preview || `包含 ${items.length} 个线程，最近活跃：《${latestItem.threadTitle}》`,
       lastMessagePreview:
diff --git a/tests/conversation-home-items.test.ts b/tests/conversation-home-items.test.ts
index c5edf5f..e7b581c 100644
--- a/tests/conversation-home-items.test.ts
+++ b/tests/conversation-home-items.test.ts
@@ -459,9 +459,16 @@ test("folder archive search aliases keep full reachability across five threads",
     "网络修复",
     "审阅确认",
   ]);
+  assert.deepEqual(folder?.searchTargetProjectIds, [
+    "boss-thread-1",
+    "boss-thread-2",
+    "boss-thread-3",
+    "boss-thread-4",
+    "boss-thread-5",
+  ]);
 });
 
-test("folder archive search aliases still dedupe when multiple threads share the same title", async () => {
+test("folder archive search aliases keep same-label threads reachable through every project id", async () => {
   await setup();
   const state = await readState();
 
@@ -476,7 +483,8 @@ test("folder archive search aliases still dedupe when multiple threads share the
   const folder = getConversationHomeItems(state).find((item) => item.conversationType === "folder_archive");
 
   assert.ok(folder, "expected grouped folder archive item");
-  assert.deepEqual(folder?.searchAliases, ["发布回滚", "日志收口", "网络修复"]);
+  assert.deepEqual(folder?.searchAliases, ["发布回滚", "发布回滚", "日志收口", "网络修复"]);
+  assert.deepEqual(folder?.searchTargetProjectIds, ["boss-thread-1", "boss-thread-2", "boss-thread-3", "boss-thread-4"]);
 });
 
 test("conversation items expose context status while keeping idle activity silent", async () => {