diff --git a/src/components/app-ui.tsx b/src/components/app-ui.tsx
index 16bafc9..76b10d4 100644
--- a/src/components/app-ui.tsx
+++ b/src/components/app-ui.tsx
@@ -410,13 +410,17 @@ export function getConversationListItemPresentation(conversation: ConversationIt
 }
 
 export function getConversationActionAvailability(conversation: ConversationItem) {
-  const canTogglePin = conversation.projectId !== "master-agent";
   return {
-    canTogglePin,
+    canTogglePin: false,
     togglePinLabel: conversation.topPinnedLabel || conversation.manualPinned ? "取消置顶" : "置顶",
   };
 }
 
+export function getConversationPinnedBadgeLabel(conversation: ConversationItem) {
+  void conversation;
+  return "";
+}
+
 export function getConversationActionsPath(projectId: string) {
   return `/api/v1/conversations/${encodeURIComponent(projectId)}/actions`;
 }
@@ -526,11 +530,7 @@ export function ConversationList({
                   </div>
                   <div className="flex min-w-[98px] flex-col items-end gap-1">
                     <div className="min-h-[18px] text-[11px] text-[#07C160]">
-                      {conversation.projectId === "master-agent"
-                        ? "置顶"
-                        : conversation.topPinnedLabel
-                          ? "置顶"
-                          : ""}
+                      {getConversationPinnedBadgeLabel(conversation)}
                     </div>
                     <div className="text-[12px] text-[#8C8C8C]">{conversation.latestReplyLabel}</div>
                     {conversation.contextBudgetIndicator.visible &&
diff --git a/tests/conversation-home-items.test.ts b/tests/conversation-home-items.test.ts
index ed29eac..84d23ea 100644
--- a/tests/conversation-home-items.test.ts
+++ b/tests/conversation-home-items.test.ts
@@ -15,6 +15,7 @@ let formatTimestampLabel: (typeof import("../src/lib/boss-projections"))["format
 let getConversationListItemPresentation: (typeof import("../src/components/app-ui"))["getConversationListItemPresentation"];
 let getConversationActionAvailability: (typeof import("../src/components/app-ui"))["getConversationActionAvailability"];
 let getConversationActionsPath: (typeof import("../src/components/app-ui"))["getConversationActionsPath"];
+let getConversationPinnedBadgeLabel: (typeof import("../src/components/app-ui"))["getConversationPinnedBadgeLabel"];
 
 async function setup() {
   if (runtimeRoot) return;
@@ -37,6 +38,7 @@ async function setup() {
   getConversationListItemPresentation = ui.getConversationListItemPresentation;
   getConversationActionAvailability = ui.getConversationActionAvailability;
   getConversationActionsPath = ui.getConversationActionsPath;
+  getConversationPinnedBadgeLabel = ui.getConversationPinnedBadgeLabel;
 }
 
 test.after(async () => {
@@ -705,7 +707,7 @@ test("conversation home compacts imported previews and trims local workspace pre
   assert.equal(item?.lastMessagePreview, "已导入线程");
 });
 
-test("folder archive homepage rows expose pin toggles when the folder is pinned", async () => {
+test("folder archive homepage rows do not expose pin toggles in the Web surface", async () => {
   await setup();
   const state = await readState();
 
@@ -738,8 +740,34 @@ test("folder archive homepage rows expose pin toggles when the folder is pinned"
   assert.ok(folder, "expected grouped folder archive item");
 
   const actions = getConversationActionAvailability(folder!);
-  assert.equal(actions.canTogglePin, true);
-  assert.equal(actions.togglePinLabel, "取消置顶");
+  assert.equal(actions.canTogglePin, false);
+});
+
+test("homepage rows do not expose pinned labels in the Web surface", async () => {
+  await setup();
+  const state = await readState();
+
+  state.projects = state.projects.filter((project) => project.id === "master-agent");
+  state.projects.push({
+    ...buildImportedThreadProject(
+      "mac-studio",
+      "boss-thread-1",
+      "Boss",
+      "boss",
+      "归档确认",
+      "thread-1",
+      "2026-03-30T11:00:00+08:00",
+    ),
+    pinned: true,
+  });
+
+  const pinnedThread = getConversationHomeItems(state).find((item) => item.projectId === "boss-thread-1");
+  assert.ok(pinnedThread, "expected pinned thread item");
+  assert.equal(getConversationPinnedBadgeLabel(pinnedThread!), "");
+
+  const masterAgent = getConversationHomeItems(state).find((item) => item.projectId === "master-agent");
+  assert.ok(masterAgent, "expected master agent item");
+  assert.equal(getConversationPinnedBadgeLabel(masterAgent!), "");
 });
 
 test("folder archive action path encodes folder keys with nested path segments", async () => {