diff --git a/code/th_02_core.js b/code/th_02_core.js
index d2fd4b6..3240043 100644
--- a/code/th_02_core.js
+++ b/code/th_02_core.js
@@ -43,6 +43,11 @@ function FloatBallAppWM(logger) {
     viewerPanelLp: null,
     viewerPanelType: null,
 
+    // 设置类 UI App 化：单窗口页面栈（settings -> 子页面 -> 编辑页）
+    toolAppActive: false,
+    toolAppNavStack: [],
+    toolAppRoute: null,
+
     mask: null,
     maskLp: null,
 
diff --git a/code/th_09_animation.js b/code/th_09_animation.js
index c8b2e5a..62883e6 100644
--- a/code/th_09_animation.js
+++ b/code/th_09_animation.js
@@ -205,6 +205,9 @@ FloatBallAppWM.prototype.handlePanelBack = function(which, reason) {
 
     if (this.state.addedViewer) {
       var vt = String(this.state.viewerPanelType || w || "viewer");
+      if (vt === "tool_app" && this.state.toolAppActive && this.popToolAppPage) {
+        return this.popToolAppPage(reason || "back_key");
+      }
       if (vt === "btn_editor") {
         if (this.state.editingButtonIndex !== null && this.state.editingButtonIndex !== undefined) {
           this.state.editingButtonIndex = null;
@@ -328,6 +331,9 @@ FloatBallAppWM.prototype.hideAllPanels = function() {
   this.hideMainPanel();
   this.hideSettingsPanel();
   this.hideViewerPanel();
+  this.state.toolAppActive = false;
+  this.state.toolAppRoute = null;
+  this.state.toolAppNavStack = [];
   this.hideMask();
 
   this._clearHeavyCachesIfAllHidden("hideAllPanels");
diff --git a/code/th_14_panels.js b/code/th_14_panels.js
index cc1993b..3e60a69 100644
--- a/code/th_14_panels.js
+++ b/code/th_14_panels.js
@@ -54,8 +54,12 @@ FloatBallAppWM.prototype.buildSettingsPanelView = function() {
 
   // [恢复] 按钮管理
   var btnMgr = this.ui.createFlatButton(this, "按钮管理", C.primary, function() {
-      self.hideSettingsPanel();
-      self.showPanelAvoidBall("btn_editor");
+      if (self.state.toolAppActive && self.pushToolAppPage) {
+        self.pushToolAppPage("btn_editor");
+      } else {
+        self.hideSettingsPanel();
+        self.showPanelAvoidBall("btn_editor");
+      }
   });
   btnMgr.setTextSize(android.util.TypedValue.COMPLEX_UNIT_SP, 13);
   header.addView(btnMgr);
@@ -118,7 +122,8 @@ FloatBallAppWM.prototype.buildSettingsPanelView = function() {
         self.state.previewMode = false;
         if (self.state.addedPanel) self.hideMainPanel();
 
-        self.hideSettingsPanel();
+        if (self.state.toolAppActive && self.closeToolApp) self.closeToolApp();
+        else self.hideSettingsPanel();
 
         if (r && r.ok) self.toast("已确认并生效");
         else self.toast("确认失败: " + (r && r.reason ? r.reason : (r && r.err ? r.err : "unknown")));
@@ -410,7 +415,8 @@ FloatBallAppWM.prototype.buildButtonEditorPanelView = function() {
     // 新增按钮 (右侧)
     var btnAdd = self.ui.createSolidButton(self, "新增", C.primary, android.graphics.Color.WHITE, function() {
         self.state.editingButtonIndex = -1;
-        refreshPanel();
+        if (self.state.toolAppActive && self.pushToolAppPage) self.pushToolAppPage("btn_editor");
+        else refreshPanel();
     });
     // 调整新增按钮样式，使其更紧凑
     btnAdd.setPadding(self.dp(12), self.dp(6), self.dp(12), self.dp(6));
@@ -463,7 +469,8 @@ FloatBallAppWM.prototype.buildButtonEditorPanelView = function() {
         card.setOnClickListener(new android.view.View.OnClickListener({
             onClick: function() {
                 self.state.editingButtonIndex = idx;
-                refreshPanel();
+                if (self.state.toolAppActive && self.pushToolAppPage) self.pushToolAppPage("btn_editor");
+                else refreshPanel();
             }
         }));
 
diff --git a/code/th_15_extra.js b/code/th_15_extra.js
index ed5745c..9c3d4bf 100644
--- a/code/th_15_extra.js
+++ b/code/th_15_extra.js
@@ -402,7 +402,7 @@ FloatBallAppWM.prototype.addPanel = function(panel, x, y, which) {
   if (this.state.closing) return;
 
   // Determine if this panel should be modal (blocking background touches, better for IME)
-  var isModal = (which === "settings" || which === "btn_editor" || which === "schema_editor");
+  var isModal = (which === "settings" || which === "btn_editor" || which === "schema_editor" || which === "tool_app");
 
   var flags;
   if (isModal) {
@@ -477,9 +477,179 @@ FloatBallAppWM.prototype.addPanel = function(panel, x, y, which) {
   }
 };
 
+// =======================【设置类 UI：App 页面栈实验框架】======================
+FloatBallAppWM.prototype.isToolAppRoute = function(route) {
+  var r = String(route || "");
+  return r === "settings" || r === "btn_editor" || r === "schema_editor";
+};
+
+FloatBallAppWM.prototype.getToolAppTitle = function(route) {
+  var r = String(route || "settings");
+  if (r === "settings") return "ToolHub 设置";
+  if (r === "btn_editor") {
+    if (this.state.editingButtonIndex !== null && this.state.editingButtonIndex !== undefined) {
+      return (this.state.editingButtonIndex === -1) ? "新增按钮" : "编辑按钮";
+    }
+    return "按钮管理";
+  }
+  if (r === "schema_editor") {
+    if (this.state.editingSchemaIndex !== null && this.state.editingSchemaIndex !== undefined) {
+      return (this.state.editingSchemaIndex === -1) ? "新增布局项" : "编辑布局项";
+    }
+    return "布局管理";
+  }
+  return "ToolHub";
+};
+
+FloatBallAppWM.prototype.closeToolApp = function() {
+  try {
+    this.state.toolAppActive = false;
+    this.state.toolAppRoute = null;
+    this.state.toolAppNavStack = [];
+    this.hideViewerPanel();
+  } catch (e) { safeLog(this.L, 'e', "closeToolApp fail: " + String(e)); }
+};
+
+FloatBallAppWM.prototype.buildToolAppShell = function(contentView, title, canBack) {
+  var self = this;
+  var isDark = this.isDarkTheme();
+  var C = this.ui.colors;
+  var root = new android.widget.LinearLayout(context);
+  root.setOrientation(android.widget.LinearLayout.VERTICAL);
+  root.setBackground(this.ui.createRoundDrawable(isDark ? C.bgDark : C.bgLight, this.dp(18)));
+  try { root.setElevation(this.dp(10)); } catch(eElev) { safeLog(null, 'e', "catch " + String(eElev)); }
+
+  var bar = new android.widget.LinearLayout(context);
+  bar.setOrientation(android.widget.LinearLayout.HORIZONTAL);
+  bar.setGravity(android.view.Gravity.CENTER_VERTICAL);
+  bar.setPadding(this.dp(8), this.dp(8), this.dp(8), this.dp(6));
+
+  var btnBack = this.ui.createFlatButton(this, canBack ? "‹" : "", C.primary, function() {
+    if (canBack) self.popToolAppPage("topbar");
+  });
+  btnBack.setTextSize(android.util.TypedValue.COMPLEX_UNIT_SP, 24);
+  btnBack.setPadding(this.dp(8), 0, this.dp(8), 0);
+  if (!canBack) btnBack.setVisibility(android.view.View.INVISIBLE);
+  bar.addView(btnBack, new android.widget.LinearLayout.LayoutParams(this.dp(42), this.dp(38)));
+
+  var tvTitle = new android.widget.TextView(context);
+  tvTitle.setText(String(title || "ToolHub"));
+  tvTitle.setTextColor(isDark ? C.textPriDark : C.textPriLight);
+  tvTitle.setTextSize(android.util.TypedValue.COMPLEX_UNIT_SP, 16);
+  tvTitle.setTypeface(null, android.graphics.Typeface.BOLD);
+  tvTitle.setGravity(android.view.Gravity.CENTER_VERTICAL);
+  var titleLp = new android.widget.LinearLayout.LayoutParams(0, -1);
+  titleLp.weight = 1;
+  bar.addView(tvTitle, titleLp);
+
+  var btnClose = this.ui.createFlatButton(this, "✕", isDark ? C.textSecDark : C.textSecLight, function() {
+    self.closeToolApp();
+  });
+  btnClose.setTextSize(android.util.TypedValue.COMPLEX_UNIT_SP, 18);
+  btnClose.setPadding(this.dp(8), 0, this.dp(8), 0);
+  bar.addView(btnClose, new android.widget.LinearLayout.LayoutParams(this.dp(42), this.dp(38)));
+  root.addView(bar, new android.widget.LinearLayout.LayoutParams(-1, this.dp(52)));
+
+  try { contentView.setBackground(null); } catch(eBg) { safeLog(null, 'e', "catch " + String(eBg)); }
+  try { contentView.setElevation(0); } catch(eEl) { safeLog(null, 'e', "catch " + String(eEl)); }
+  root.addView(contentView, new android.widget.LinearLayout.LayoutParams(-1, 0, 1));
+  return root;
+};
+
+FloatBallAppWM.prototype.showToolApp = function(route, resetStack) {
+  if (this.state.closing) return;
+  var r = this.isToolAppRoute(route) ? String(route) : "settings";
+  try {
+    this.touchActivity();
+    this.hideMainPanel();
+    this.hideSettingsPanel();
+    this.hideViewerPanel();
+    this.showMask();
+    this.state.toolAppActive = true;
+    this.state.toolAppRoute = r;
+    if (resetStack || !this.state.toolAppNavStack || !this.state.toolAppNavStack.length) {
+      this.state.toolAppNavStack = [{ route: r }];
+    } else {
+      this.state.toolAppNavStack[this.state.toolAppNavStack.length - 1] = { route: r };
+    }
+
+    var raw = this.buildPanelView(r);
+    var shell = this.buildToolAppShell(raw, this.getToolAppTitle(r), this.state.toolAppNavStack.length > 1);
+    var maxW = Math.floor(this.state.screen.w * 0.92);
+    var maxH = Math.floor(this.state.screen.h * 0.82);
+    shell.measure(
+      android.view.View.MeasureSpec.makeMeasureSpec(maxW, android.view.View.MeasureSpec.AT_MOST),
+      android.view.View.MeasureSpec.makeMeasureSpec(maxH, android.view.View.MeasureSpec.AT_MOST)
+    );
+    var pw = Math.max(this.dp(300), Math.min(maxW, shell.getMeasuredWidth()));
+    var ph = Math.max(this.dp(380), Math.min(maxH, shell.getMeasuredHeight()));
+    var lp0 = shell.getLayoutParams();
+    if (!lp0) lp0 = new android.view.ViewGroup.LayoutParams(pw, ph);
+    lp0.width = pw; lp0.height = ph;
+    shell.setLayoutParams(lp0);
+    var pos = this.getBestPanelPosition(pw, ph, this.state.ballLp.x, this.state.ballLp.y, this.getDockInfo().ballSize);
+    this.addPanel(shell, pos.x, pos.y, "tool_app");
+  } catch (e) {
+    this.state.toolAppActive = false;
+    safeLog(this.L, 'e', "showToolApp fail route=" + r + " err=" + String(e));
+    try { this.toast("设置页面显示失败: " + String(e)); } catch(et) {}
+  }
+};
+
+FloatBallAppWM.prototype.pushToolAppPage = function(route) {
+  if (!this.isToolAppRoute(route)) return;
+  if (!this.state.toolAppNavStack) this.state.toolAppNavStack = [];
+  this.state.toolAppNavStack.push({ route: String(route) });
+  this.showToolApp(route, false);
+};
+
+FloatBallAppWM.prototype.replaceToolAppPage = function(route) {
+  if (!this.isToolAppRoute(route)) return;
+  if (!this.state.toolAppNavStack || !this.state.toolAppNavStack.length) this.state.toolAppNavStack = [{ route: String(route) }];
+  else this.state.toolAppNavStack[this.state.toolAppNavStack.length - 1] = { route: String(route) };
+  this.showToolApp(route, false);
+};
+
+FloatBallAppWM.prototype.popToolAppPage = function(reason) {
+  try {
+    var curRoute = this.state.toolAppRoute ? String(this.state.toolAppRoute) : "";
+    if (curRoute === "btn_editor" && this.state.editingButtonIndex !== null && this.state.editingButtonIndex !== undefined) {
+      this.state.editingButtonIndex = null;
+      this.state.keepBtnEditorState = true;
+    }
+    if (curRoute === "schema_editor" && this.state.editingSchemaIndex !== null && this.state.editingSchemaIndex !== undefined) {
+      this.state.editingSchemaIndex = null;
+      this.state.keepSchemaEditorState = true;
+    }
+    if (!this.state.toolAppNavStack || this.state.toolAppNavStack.length <= 1) {
+      this.closeToolApp();
+      return true;
+    }
+    this.state.toolAppNavStack.pop();
+    var top = this.state.toolAppNavStack[this.state.toolAppNavStack.length - 1];
+    this.showToolApp(top && top.route ? top.route : "settings", false);
+    return true;
+  } catch (e) {
+    safeLog(this.L, 'e', "popToolAppPage fail reason=" + String(reason || "") + " err=" + String(e));
+  }
+  return false;
+};
+
 FloatBallAppWM.prototype.showPanelAvoidBall = function(which) {
   if (this.state.closing) return;
 
+  // 设置入口先走 AppShell + 页面栈；子页面在 AppShell 内刷新，逐步替换旧多浮窗模式。
+  if (this.isToolAppRoute && this.isToolAppRoute(which)) {
+    if (which === "settings" && !this.state.toolAppActive) {
+      this.showToolApp("settings", true);
+      return;
+    }
+    if (this.state.toolAppActive) {
+      this.replaceToolAppPage(which);
+      return;
+    }
+  }
+
   // 优化：如果是刷新编辑器面板（btn_editor/schema_editor），且面板已存在，则直接更新内容，避免闪烁
   if ((which === "btn_editor" || which === "schema_editor") && this.state.addedViewer && this.state.viewerPanel) {
       try {
diff --git a/manifest.json b/manifest.json
index 6b754df..d4e82df 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,8 +6,8 @@
       "size": 52546
     },
     "th_02_core.js": {
-      "sha256": "f44f88f0ce3f44f0d1675e55a9f0b66d831caa7819dda54aef6e308ec27faaeb",
-      "size": 3934
+      "sha256": "3d77bcdbe588cd173f6ed4d20c01bea42798acf9a07cd9392f8679f7cccc0ad1",
+      "size": 4099
     },
     "th_03_icon.js": {
       "sha256": "717f7f37474d3616c2cd944581455f600020a850ec8812100d0546ec1302c987",
@@ -34,8 +34,8 @@
       "size": 7938
     },
     "th_09_animation.js": {
-      "sha256": "7120d208910955a2a163c4ad535b2eca674f7a0c2c462ef2f03bad11c9511933",
-      "size": 27541
+      "sha256": "e42d72199c13849b3222719dadbcde7fca9ead69c94bf46c01f831e36adb920f",
+      "size": 27794
     },
     "th_10_shell.js": {
       "sha256": "0ed793079c2f6ba7d29f4c0d411705cb72419f45f572cbe37ed32ac16527a8bc",
@@ -54,12 +54,12 @@
       "size": 20386
     },
     "th_14_panels.js": {
-      "sha256": "cf18cb06a9e221b671360f94040542c1c27e8776bb5037abe4f4b0f3de3e1073",
-      "size": 217347
+      "sha256": "1356191b8d4da5cc668282c4d3aeb9d0a016ceb2fae0baf2d6b691606b571733",
+      "size": 217779
     },
     "th_15_extra.js": {
-      "sha256": "ed56b19a5a798a785c024eb931140ded69d16921d2e87ad4ccd861df1c1907d8",
-      "size": 62936
+      "sha256": "ffcdc8f8e4dda94658b1e32e4c4ed61e58d4525306a4a1697cccf3635b942d28",
+      "size": 70523
     },
     "th_16_entry.js": {
       "sha256": "e7c99c3dfbd6aedab05551426955081ae6cae034754f2f557cefa01dc75dc001",
@@ -68,5 +68,5 @@
   },
   "keyId": "toolhub-targets-2026-rsa3072",
   "schema": 2,
-  "version": 20260512022403
+  "version": 20260512024621
 }
diff --git a/manifest.sig b/manifest.sig
index 27a10b3..83e8888 100644
--- a/manifest.sig
+++ b/manifest.sig
@@ -1 +1 @@
-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