diff --git a/Button.cpp b/Button.cpp
index b766731..0781231 100644
--- a/Button.cpp
+++ b/Button.cpp
@@ -276,9 +276,11 @@ bool Button::handleEvent(const ExMessage& msg)
 {
 	if (!show)
 		return false;
+	resetEventVisualChanged();
 
 	bool oldHover = hover;// 注意：只在状态变化时记录，避免 WM_MOUSEMOVE 刷屏
 	bool oldClick = click;
+	const bool oldTipVisible = tipVisible;
 	
 	bool consume = false;//是否消耗事件
 	const bool isMouseMessage =
@@ -312,12 +314,6 @@ bool Button::handleEvent(const ExMessage& msg)
 			break;
 		}
 	}
-	if (hover != oldHover)
-	{
-		SX_LOG_TRACE("Button") << SX_T("悬停变化: ","hover change: ") << "id=" << id
-			<< " text= " << text
-			<< " " << (oldHover ? 1 : 0) << "->" << (hover ? 1 : 0);
-	}
 	// 处理鼠标点击事件
 	if (msg.message == WM_LBUTTONDOWN && hover && mode != StellarX::ButtonMode::DISABLED)
 	{
@@ -396,8 +392,6 @@ bool Button::handleEvent(const ExMessage& msg)
 			// 到点就显示
 			if (GetTickCount64() - tipHoverTick >= (ULONGLONG)tipDelayMs)
 			{
-				SX_LOG_TRACE("Button") << SX_T("提示信息显示: ","tooltip show:")<<" id = " << id <<SX_T("延时时间: ", " delayMs = ") << tipDelayMs;
-
 				tipVisible = true;
 
 				// 定位（跟随鼠标 or 相对按钮）
@@ -424,8 +418,16 @@ bool Button::handleEvent(const ExMessage& msg)
 	}
 
 	// 如果状态发生变化，标记需要重绘
-	if (hover != oldHover || click != oldClick)
+	const bool stateChanged = (hover != oldHover || click != oldClick);
+	if (stateChanged)
 		dirty = true;
+	const bool tipVisibilityChanged = (tipVisible != oldTipVisible);
+
+	// 鼠标命中按钮区域，或按钮自身状态因此发生变化时，吞掉该事件。
+	// 这样可以避免被遮挡/重叠的下层控件继续收到同一事件并把自己重绘到上层。
+	if (isMouseMessage && (hover || oldHover || click != oldClick))
+		consume = true;
+	markEventVisualChanged(stateChanged || tipVisibilityChanged);
 
 	// 如果需要重绘，立即执行
 	if (dirty)
diff --git a/Canvas.cpp b/Canvas.cpp
index ad3f911..dd2f1fa 100644
--- a/Canvas.cpp
+++ b/Canvas.cpp
@@ -6,6 +6,19 @@ static bool SxIsNoisyMsg(UINT m)
 	return m == WM_MOUSEMOVE;
 }
 
+static const char* SxCanvasMsgName(UINT m)
+{
+	switch (m)
+	{
+	case WM_MOUSEMOVE:   return "WM_MOUSEMOVE";
+	case WM_LBUTTONDOWN: return "WM_LBUTTONDOWN";
+	case WM_LBUTTONUP:   return "WM_LBUTTONUP";
+	case WM_KEYDOWN:     return "WM_KEYDOWN";
+	case WM_KEYUP:       return "WM_KEYUP";
+	default:             return "WM_UNKNOWN";
+	}
+}
+
 Canvas::Canvas()
 	:Control(0, 0, 100, 100)
 {
@@ -113,9 +126,11 @@ void Canvas::draw()
 bool Canvas::handleEvent(const ExMessage& msg)
 {
 	if (!show) return false;
+	resetEventVisualChanged();
 
 	bool consumed = false;
 	bool anyDirty = false;
+	bool anyVisualChanged = false;
 	Control* firstConsumer = nullptr;
 
 	for (auto it = controls.rbegin(); it != controls.rend(); ++it)
@@ -124,6 +139,7 @@ bool Canvas::handleEvent(const ExMessage& msg)
 		bool cConsumed = c->handleEvent(msg);
 
 		if (c->isDirty()) anyDirty = true;
+		if (c->didEventAffectVisual()) anyVisualChanged = true;
 
 		if (cConsumed)
 		{
@@ -135,8 +151,9 @@ bool Canvas::handleEvent(const ExMessage& msg)
 
 	if (firstConsumer && !SxIsNoisyMsg(msg.message))
 	{
-		SX_LOGD("Event") << SX_T("Canvas 消耗消息: ","Canvas consumed: msg=") << msg.message
-			<< SX_T("子控件"," by child")<<" id=" << firstConsumer->getId();
+		SX_LOGD("Event") << SX_T("Canvas 消耗消息: ","Canvas consumed: ")
+			<< SxCanvasMsgName(msg.message)
+			<< SX_T(" 子控件 id=", " childId=") << firstConsumer->getId();
 	}
 
 	if (anyDirty)
@@ -145,6 +162,7 @@ bool Canvas::handleEvent(const ExMessage& msg)
 			SX_LOGD("Dirty") << SX_T("Canvas检测有控件为脏状态 -> 请求重绘, ","Canvas anyDirty -> requestRepaint, ")<<"id = " << id;
 		requestRepaint(parent);
 	}
+	markEventVisualChanged(anyVisualChanged);
 
 	return consumed;
 }
diff --git a/Control.h b/Control.h
index c0a8f1e..b378dc8 100644
--- a/Control.h
+++ b/Control.h
@@ -41,6 +41,7 @@ protected:
 	Control* parent = nullptr;    // 父控件
 	bool dirty = true; // 是否重绘
 	bool show = true; // 是否显示
+	bool eventVisualChanged = false; // 最近一次 handleEvent 是否真的引发了视觉变化
 
 	/* == 布局模式 == */
 	StellarX::LayoutMode layoutMode = StellarX::LayoutMode::Fixed;  // 布局模式
@@ -128,6 +129,7 @@ public:
 	std::string getId() const { return id; }
 	//检查是否为脏
 	bool isDirty() { return dirty; }
+	bool didEventAffectVisual() const { return eventVisualChanged; }
 	//用来检查对话框是否模态，其他控件不用实现
 	virtual bool model()const = 0;
 	//布局
@@ -139,4 +141,6 @@ public:
 protected:
 	void saveStyle();
 	void restoreStyle();
+	void resetEventVisualChanged() { eventVisualChanged = false; }
+	void markEventVisualChanged(bool changed = true) { eventVisualChanged = changed; }
 };
diff --git a/Dialog.cpp b/Dialog.cpp
index 80049f4..792befa 100644
--- a/Dialog.cpp
+++ b/Dialog.cpp
@@ -44,12 +44,15 @@ void Dialog::draw()
 
 		//绘制消息文本
 		settextcolor(textStyle.color);
+		setbkmode(TRANSPARENT);
 
 		//设置字体样式
 		settextstyle(textStyle.nHeight, textStyle.nWidth, textStyle.lpszFace,
 			textStyle.nEscapement, textStyle.nOrientation, textStyle.nWeight,
 			textStyle.bItalic, textStyle.bUnderline, textStyle.bStrikeOut);
 
+		outtextxy(x + 5, y + 5, LPCTSTR(titleText.c_str()));
+
 		int ty = y + closeButtonHeight + titleToTextMargin; // 文本起始Y坐标
 		for (auto& line : lines)
 		{
@@ -68,6 +71,7 @@ void Dialog::draw()
 bool Dialog::handleEvent(const ExMessage& msg)
 {
 	bool consume = false;
+	resetEventVisualChanged();
 	if (!show)
 	{
 		if (pendingCleanup && !isCleaning)
@@ -80,12 +84,20 @@ bool Dialog::handleEvent(const ExMessage& msg)
 	// 如果正在清理或标记为待清理，则不处理事件
 	if (pendingCleanup || isCleaning)
 		return false;
-		// 模态对话框不允许点击外部区域
-	// 模态对话框：点击对话框外部区域时，发出提示音(\a)并吞噬该事件，不允许操作背景内容。
-	if (modal && msg.message == WM_LBUTTONUP &&
-		(msg.x < x || msg.x > x + width || msg.y < y || msg.y > y + height))
+
+	const bool isMouseMessage =
+		msg.message == WM_MOUSEMOVE ||
+		msg.message == WM_LBUTTONDOWN ||
+		msg.message == WM_LBUTTONUP;
+	const bool insideDialog =
+		msg.x >= x && msg.x <= x + width &&
+		msg.y >= y && msg.y <= y + height;
+
+	// 模态对话框区域外鼠标事件不允许落到底层背景。
+	if (modal && isMouseMessage && !insideDialog)
 	{
-		std::cout << "\a" << std::endl;
+		if (msg.message == WM_LBUTTONUP)
+			std::cout << "\a" << std::endl;
 		return true;
 	}
 
@@ -93,6 +105,10 @@ bool Dialog::handleEvent(const ExMessage& msg)
 	if (!consume)
 		consume = Canvas::handleEvent(msg);
 
+	// 对话框矩形范围内的鼠标事件一律由对话框吞掉，避免穿透到底层控件。
+	if (isMouseMessage && insideDialog)
+		consume = true;
+
 	// 每次事件处理后检查是否需要执行延迟清理
 	if (pendingCleanup && !isCleaning)
 		performDelayedCleanup();
@@ -182,9 +198,8 @@ void Dialog::Show()
 					// 立即统一收口：父窗重绘 背景+普通控件（不会画到这只模态）
 					hWnd.pumpResizeIfNeeded();
 
-					// 这只模态在新尺寸下重建布局 / 重抓背景 → 本帧要画自己
-					setInitialization(true);
-					setDirty(true);
+					// 这只模态只重新居中，不参与拉伸；背景快照需要在新位置重抓。
+					recenterInHostWindow();
 				}
 
 				// ② 处理这只对话框的鼠标/键盘（沿用原来 EX_MOUSE | EX_KEY）
@@ -257,10 +272,30 @@ void Dialog::setInitialization(bool init)
 	}
 }
 
+void Dialog::recenterInHostWindow()
+{
+	if (!show)
+		return;
+
+	// 尚未完成首次初始化时，保持“延迟初始化”语义，由首次 draw 统一创建子控件。
+	if (needsInitialization || width <= 0 || height <= 0)
+	{
+		dirty = true;
+		return;
+	}
+
+	const int newX = (hWnd.getWidth() - width) / 2;
+	const int newY = (hWnd.getHeight() - height) / 2;
+	invalidateBackgroundSnapshot();
+
+	x = newX;
+	y = newY;
+	rebuildChrome();
+	dirty = true;
+}
+
 void Dialog::initButtons()
 {
-	controls.clear();
-
 	switch (this->type)
 	{
 	case StellarX::MessageBoxType::OK:  // 只有确定按钮
@@ -489,16 +524,6 @@ void Dialog::initCloseButton()
 	this->addControl(std::move(but));
 }
 
-void Dialog::initTitle()
-{
-	auto titleLabel = std::make_unique<Label>(this->x + 5, this->y + 5, titleText, textStyle.color);
-	titleLabel->setTextdisap(true);
-	titleLabel->textStyle = this->textStyle;
-	this->title = titleLabel.get();
-
-	this->addControl(std::move(titleLabel));
-}
-
 void Dialog::splitMessageLines()
 {
 	lines.clear(); // 先清空现有的行
@@ -570,6 +595,13 @@ void Dialog::invalidateLayout(bool clearChildren)
 	this->dirty = true;
 }
 
+void Dialog::rebuildChrome()
+{
+	clearControls();
+	initButtons();
+	initCloseButton();
+}
+
 // 计算逻辑：对话框宽度取【文本区域最大宽度】和【按钮区域总宽度】中的较大值。
 // 对话框高度 = 标题栏 + 文本区 + 按钮区 + 各种间距。
 void Dialog::initDialogSize()
@@ -626,9 +658,7 @@ void Dialog::initDialogSize()
 	this->x = (hWnd.getWidth() - this->width) / 2;
 	this->y = (hWnd.getHeight() - this->height) / 2;
 
-	initButtons();     // 初始化按钮
-	initTitle();       // 初始化标题标签
-	initCloseButton(); // 初始化关闭按钮
+	rebuildChrome();
 }
 
 void Dialog::addControl(std::unique_ptr<Control> control)
@@ -655,7 +685,6 @@ void Dialog::performDelayedCleanup()
 
 	// 重置指针
 	closeButton = nullptr;
-	title = nullptr;
 	// 释放背景图像资源
 	if (saveBkImage && hasSnap)
 	{
@@ -709,7 +738,6 @@ void Dialog::clearControls()
 	controls.clear();
 	// 重置按钮指针
 	closeButton = nullptr;
-	title = nullptr; // 释放标题资源
 }
 
 std::unique_ptr<Button> Dialog::createDialogButton(int x, int y, const std::string& text)
diff --git a/Dialog.h b/Dialog.h
index d285fb4..213b90c 100644
--- a/Dialog.h
+++ b/Dialog.h
@@ -40,7 +40,6 @@ class Dialog : public Canvas
 
 	StellarX::MessageBoxType type = StellarX::MessageBoxType::OK;   //对话框类型
 	std::string titleText = "提示";				     //标题文本
-	Label* title = nullptr;  //标题标签（由 controls 持有）
 
 	std::string message;                  //提示信息
 	std::vector<std::string> lines;       //消息内容按行分割
@@ -105,14 +104,14 @@ public:
 	void Close();
 	//初始化
 	void setInitialization(bool init);
+	// 宿主窗口变化时仅重新居中，不拉伸 Dialog 自身
+	void recenterInHostWindow();
 
 private:
 	// 初始化按钮
 	void initButtons();
 	// 初始化关闭按钮
 	void initCloseButton();
-	// 初始化标题
-	void initTitle();
 	// 按行分割消息内容
 	void splitMessageLines();
 	// 获取文本大小
@@ -121,6 +120,8 @@ private:
 	void invalidateLayout(bool clearChildren);
 	//初始化对话框尺寸
 	void initDialogSize();
+	// 依据当前 Dialog 的 x/y/width/height 重新创建标题和按钮
+	void rebuildChrome();
 	void addControl(std::unique_ptr<Control> control);
 
 	// 清除所有控件
diff --git a/TextBox.cpp b/TextBox.cpp
index 994bdd7..6ac6f1b 100644
--- a/TextBox.cpp
+++ b/TextBox.cpp
@@ -99,6 +99,7 @@ void TextBox::draw()
 bool TextBox::handleEvent(const ExMessage& msg)
 {
 	if (!show) return false;
+	resetEventVisualChanged();
 
 	bool hover = false;
 	bool oldClick = click;
@@ -165,6 +166,7 @@ bool TextBox::handleEvent(const ExMessage& msg)
 
 	if (dirty)
 		requestRepaint(parent);
+	markEventVisualChanged(dirty);
 
 	if (click)
 		click = false;
diff --git a/Window.cpp b/Window.cpp
index 1612d76..7f73fdf 100644
--- a/Window.cpp
+++ b/Window.cpp
@@ -3,6 +3,8 @@
 #include"SxLog.h"
 #include <easyx.h>
 #include <algorithm>
+// 可能频繁出现且对调试信息干扰较大的消息（例如鼠标移动），
+// 可以在日志输出时特殊处理以减少干扰。
 static bool SxIsNoisyMsg(UINT m)
 {
 	return m == WM_MOUSEMOVE;
@@ -425,6 +427,17 @@ int Window::runEventLoop()
 				continue;
 			}
 
+			bool hasVisibleNonModalDialog = false;
+			for (const auto& d : dialogs)
+			{
+				if (d->IsVisible() && !d->model())
+				{
+					hasVisibleNonModalDialog = true;
+					break;
+				}
+			}
+			bool controlVisualChanged = false;
+
 			// 输入优先：先给顶层“非模态对话框”，再传给普通控件
 			for (auto it = dialogs.rbegin(); it != dialogs.rend(); ++it)
 			{
@@ -433,7 +446,9 @@ int Window::runEventLoop()
 					consume = d->handleEvent(msg);
 				if (consume)
 				{
-					SX_LOGD("Event") << SX_T("事件被非模态对话框处理","Event consumed by non-modal dialog");
+					if (!SxIsNoisyMsg(msg.message))
+						SX_LOGD("Event") << SX_T("事件被非模态对话框处理：", "Event consumed by non-modal dialog: ")
+						<< SxMsgName(msg.message);
 					break;
 				}
 			}
@@ -441,15 +456,21 @@ int Window::runEventLoop()
 			{
 				for (auto it = controls.rbegin(); it != controls.rend(); ++it)
 				{
-					consume = (*it)->handleEvent(msg);
+					Control* current = it->get();
+					consume = current->handleEvent(msg);
+					if (current->didEventAffectVisual())
+						controlVisualChanged = true;
 					if (consume)
 					{
-						SX_LOGD("Event") << SX_T("事件被控件处理 id=", "Event consumed by control id=") << (*it)->getId();
-						redrawDialogs = true; // 控件事件可能引起对话框状态变化，标记需要重绘对话框
+						if (!SxIsNoisyMsg(msg.message))
+							SX_LOGD("Event") << SX_T("事件被控件处理：", "Event consumed by control: ")
+							<< SxMsgName(msg.message)
+							<< SX_T(" id=", " id=") << current->getId();
 						break;
 					}
 				}
-
+				if (hasVisibleNonModalDialog && controlVisualChanged)
+					redrawDialogs = true; // 只有普通控件真的发生视觉变化时，才补画非模态对话框
 			}
 		}
 		// 关键点⑦：事件处理后，如果对话框状态可能变化（例如控件事件引起的控件重绘可能导致对话框被覆盖），优先重绘对话框以确保界面响应及时；后续再根据 needResizeDirty 进行一次性重绘。
@@ -550,14 +571,6 @@ int Window::runEventLoop()
 					// 批量通知控件“窗口尺寸变化”，并标记重绘
 					for (auto& c : controls)
 						adaptiveLayout(c, finalH, finalW);
-					for (auto& d : dialogs)
-					{
-						if (auto dd = dynamic_cast<Dialog*>(d.get()))
-						{
-							dd->setDirty(true);
-							dd->setInitialization(true);
-						}
-					}
 					//重绘窗口
 					Resize(nullptr, finalW, finalH);
 
@@ -585,6 +598,14 @@ int Window::runEventLoop()
 					// 最终提交“当前已应用尺寸”（用于外部查询/下次比较）
 					width = renderWidth;
 					height = renderHeight;
+
+					for (auto& d : dialogs)
+					{
+						if (auto dd = dynamic_cast<Dialog*>(d.get()))
+						{
+							dd->recenterInHostWindow();
+						}
+					}
 				}
 
 				// 统一批量绘制
@@ -782,7 +803,7 @@ void Window::pumpResizeIfNeeded()
 	}
 	for (auto& d : dialogs)
 		if (auto* dd = dynamic_cast<Dialog*>(d.get()))
-			dd->setInitialization(true); // 强制对话框在新尺寸下重建布局/快照
+			dd->recenterInHostWindow(); // 窗口变化时仅重新居中，不拉伸 Dialog 自身
 
 	// 重绘
 	for (auto& c : controls) c->draw();
diff --git a/z-testDome.cpp b/z-testDome.cpp
index 8ba9909..4814d63 100644
--- a/z-testDome.cpp
+++ b/z-testDome.cpp
@@ -195,11 +195,22 @@ int main()
 			os.clear();
 		}
 	}
+	selectionAreaLabel->setAnchor(StellarX::Anchor::Right, StellarX::Anchor::Left);
+	selectionAreaLabel->setLayoutMode(StellarX::LayoutMode::AnchorToEdges);
+	
 	selectionArea->addControl(std::move(selectionAreaLabel));
 	for (auto& s : selectionAreaButton)
+	{
+		s->setAnchor(StellarX::Anchor::Right, StellarX::Anchor::Left);
+		s->setLayoutMode(StellarX::LayoutMode::AnchorToEdges);
 		selectionArea->addControl(std::move(s));
+	}
 	for (auto& s : selectionAreaButtonLabel)
+	{
+		s->setAnchor(StellarX::Anchor::Right, StellarX::Anchor::Left);
+		s->setLayoutMode(StellarX::LayoutMode::AnchorToEdges);
 		selectionArea->addControl(std::move(s));
+	}
 	//功能区控件
 	//功能区总容器
 	auto function = std::make_unique<Canvas>(10, 170, 680, 70);
@@ -536,7 +547,7 @@ int main()
 	signedTogglePtr->setOnToggleOnListener([&]() {
 		gSigned = true;
 		signedTogglePtr->setButtonText("有符号");
-		StellarX::MessageBox::showAsync(mainWindow, "有符号模式下，\n最高位为符号位，\n其余位为数值位。", "有符号模式");
+		StellarX::MessageBox::showModal(mainWindow, "有符号模式下，\n最高位为符号位，\n其余位为数值位。", "有符号模式");
 		// 立即刷新十进制显示：用当前位图算出新值，仅改 dec
 		auto cur = snapshotBits();
 		const uint32_t u = [&] { uint32_t v = 0; for (int b = 0; b < 32; ++b) if (cur[b]) v |= (1u << b); return v; }();
@@ -562,6 +573,7 @@ int main()
 
 	selectionArea->setAnchor(StellarX::Anchor::Right, StellarX::Anchor::Left);
 	selectionArea->setLayoutMode(StellarX::LayoutMode::AnchorToEdges);
+
 	mainWindow.addControl(std::move(selectionArea));
 	mainWindow.addControl(std::move(function));
 	mainWindow.addControl(std::move(NumericalDisplayArea));