diff --git a/app/integrated_platform.pro b/app/integrated_platform.pro
index 26113e2..c896ba6 100644
--- a/app/integrated_platform.pro
+++ b/app/integrated_platform.pro
@@ -22,7 +22,7 @@ SOURCES += \
     src/ui/register_comment_dialog.cpp \
     src/ui/plc_connection_dialog.cpp \
     src/ui/free_monitor_widget.cpp \
-    src/ui/hmi_runtime_window.cpp \
+    src/ui/runtime_monitor_window.cpp \
     src/ui/runtime_monitor_widget.cpp \
     src/ui/toolbar_icon_factory.cpp \
     src/ui/project_workspace_controller.cpp \
@@ -64,7 +64,7 @@ HEADERS += \
     src/ui/register_comment_dialog.h \
     src/ui/plc_connection_dialog.h \
     src/ui/free_monitor_widget.h \
-    src/ui/hmi_runtime_window.h \
+    src/ui/runtime_monitor_window.h \
     src/ui/runtime_monitor_widget.h \
     src/ui/toolbar_icon_factory.h \
     src/ui/project_workspace_controller.h \
@@ -110,5 +110,5 @@ FORMS += \
     src/ui/register_comment_dialog.ui \
     src/ui/plc_connection_dialog.ui \
     src/ui/free_monitor_widget.ui \
-    src/ui/hmi_runtime_window.ui \
+    src/ui/runtime_monitor_window.ui \
     src/ui/runtime_monitor_widget.ui
diff --git a/app/src/domain/hmi_control_registry.cpp b/app/src/domain/hmi_control_registry.cpp
index aa76c14..03b82b6 100644
--- a/app/src/domain/hmi_control_registry.cpp
+++ b/app/src/domain/hmi_control_registry.cpp
@@ -66,7 +66,7 @@ constexpr std::array kControlDescriptors = {
      "报警列表",
      "alarm-list",
      "报警信息",
-     {0, 0, 360, 180},
+     {0, 0, 360, 136},
      HmiBindingKind::None,
      HmiRuntimeValueKind::None,
      false},
diff --git a/app/src/domain/project_limits.h b/app/src/domain/project_limits.h
index cd9dd54..2a9885b 100644
--- a/app/src/domain/project_limits.h
+++ b/app/src/domain/project_limits.h
@@ -25,6 +25,8 @@ static_assert(kMaximumLadderColumns == kMaximumConditionColumns + 1);
 constexpr std::size_t kMaximumHmiProperties = 64U;
 constexpr std::size_t kMaximumIdBytes = 128U;
 constexpr std::size_t kMaximumTextBytes = 4096U;
+constexpr std::size_t kMaximumAlarmTitleCharacters = 12U;
+constexpr std::size_t kMaximumAlarmMessageCharacters = 20U;
 constexpr std::size_t kMaximumPropertyKeyBytes = 128U;
 constexpr std::size_t kMaximumPropertyValueBytes = 4096U;
 constexpr std::size_t kMaximumRegisterCommentBytes = 64U;
@@ -36,6 +38,8 @@ constexpr int kMaximumHmiControlWidth = 8192;
 constexpr int kMaximumHmiControlHeight = 8192;
 constexpr int kMinimumHmiFontPointSize = 6;
 constexpr int kMaximumHmiFontPointSize = 72;
+constexpr int kAlarmDefaultFontPointReduction = 2;
+constexpr int kMaximumVisibleAlarmRows = 5;
 
 constexpr std::size_t kMaximumPollAddresses = 1024U;
 constexpr std::size_t kMaximumPollBlocks = 64U;
diff --git a/app/src/ui/alarm_configuration_dialog.cpp b/app/src/ui/alarm_configuration_dialog.cpp
index d7a5169..168b40b 100644
--- a/app/src/ui/alarm_configuration_dialog.cpp
+++ b/app/src/ui/alarm_configuration_dialog.cpp
@@ -1,5 +1,6 @@
 #include "alarm_configuration_dialog.h"
 
+#include "domain/project_limits.h"
 #include "services/alarm_editor_service.h"
 #include "ui_alarm_configuration_dialog.h"
 
@@ -53,6 +54,8 @@ AlarmConfigurationDialog::AlarmConfigurationDialog(
       service_(service)
 {
     ui_->setupUi(this);
+    ui_->messageEdit->setMaxLength(
+        static_cast<int>(ProjectLimits::kMaximumAlarmMessageCharacters));
     ui_->alarmTable->horizontalHeader()->setSectionResizeMode(
         0, QHeaderView::ResizeToContents);
     ui_->alarmTable->horizontalHeader()->setSectionResizeMode(
diff --git a/app/src/ui/hmi_editor_widget.cpp b/app/src/ui/hmi_editor_widget.cpp
index 4e7ac64..2d164c1 100644
--- a/app/src/ui/hmi_editor_widget.cpp
+++ b/app/src/ui/hmi_editor_widget.cpp
@@ -5,6 +5,7 @@
 #include "services/alarm_service.h"
 #include "domain/project_limits.h"
 
+#include <QApplication>
 #include <QDateTime>
 #include <QFont>
 #include <QGraphicsItem>
@@ -15,6 +16,8 @@
 #include <QInputDialog>
 #include <QPainter>
 #include <QResizeEvent>
+#include <QStyle>
+#include <QStyleOption>
 #include <QStyleOptionGraphicsItem>
 
 #include <algorithm>
@@ -27,6 +30,13 @@ namespace {
 
 constexpr qreal kAlarmHeaderHeight = 24.0;
 constexpr qreal kAlarmRowHeight = 22.0;
+constexpr qreal kAlarmCellLeftPadding = 5.0;
+constexpr qreal kAlarmCellRightPadding = 5.0;
+constexpr qreal kAlarmColumnSpacing = 3.0;
+constexpr qreal kAlarmTimeColumnWidth = 76.0;
+constexpr qreal kAlarmStateColumnWidth = 52.0;
+constexpr qreal kAlarmPageButtonSize = 16.0;
+constexpr qreal kAlarmPageIndicatorWidth = 34.0;
 
 QString alarmTimeText(const std::chrono::system_clock::time_point &time)
 {
@@ -73,9 +83,9 @@ public:
     {
         if (!control_.binding.has_value())
         {
-            return controlRect();
+            return visibleControlRect();
         }
-        return controlRect().united(addressRect());
+        return visibleControlRect().united(addressRect());
     }
 
     void paint(
@@ -84,7 +94,7 @@ public:
         QWidget *) override
     {
         // 留出一个像素边距，避免描边被图元边界裁剪
-        const QRectF rect = controlRect().adjusted(1, 1, -1, -1);
+        const QRectF rect = visibleControlRect().adjusted(1, 1, -1, -1);
         painter->setRenderHint(QPainter::Antialiasing, true);
         painter->setPen(QPen(QColor(QStringLiteral("#47545f")), 1));
 
@@ -247,18 +257,51 @@ public:
                 rect.left(), rect.top(), rect.width(), kAlarmHeaderHeight);
             painter->fillRect(header, QColor(QStringLiteral("#a63f3f")));
             painter->setPen(Qt::white);
+            QRectF title_rect = header.adjusted(7, 0, -7, 0);
+            const std::size_t page_count = alarmPageCount();
+            if (runtime_active_ && page_count > 1U)
+            {
+                const QRectF previous_rect = alarmPreviousPageRect(header);
+                const QRectF next_rect = alarmNextPageRect(header);
+                const QRectF indicator_rect = alarmPageIndicatorRect(header);
+                title_rect.setRight(previous_rect.left() - kAlarmColumnSpacing);
+
+                QStyleOption previous_option;
+                previous_option.rect = previous_rect.toAlignedRect();
+                previous_option.state = alarm_page_ > 0U
+                    ? QStyle::State_Enabled : QStyle::State_None;
+                QApplication::style()->drawPrimitive(
+                    QStyle::PE_IndicatorArrowLeft,
+                    &previous_option,
+                    painter);
+
+                QStyleOption next_option;
+                next_option.rect = next_rect.toAlignedRect();
+                next_option.state = alarm_page_ + 1U < page_count
+                    ? QStyle::State_Enabled : QStyle::State_None;
+                QApplication::style()->drawPrimitive(
+                    QStyle::PE_IndicatorArrowRight,
+                    &next_option,
+                    painter);
+                painter->setPen(Qt::white);
+                painter->drawText(
+                    indicator_rect,
+                    Qt::AlignCenter,
+                    QStringLiteral("%1/%2")
+                        .arg(static_cast<qulonglong>(alarm_page_ + 1U))
+                        .arg(static_cast<qulonglong>(page_count)));
+            }
+            const QString title = QString::fromUtf8(
+                control_.text.data(), static_cast<int>(control_.text.size()));
             painter->drawText(
-                header.adjusted(7, 0, -7, 0),
+                title_rect,
                 Qt::AlignVCenter | Qt::AlignLeft,
-                QString::fromUtf8(
-                    control_.text.data(), static_cast<int>(control_.text.size())));
+                painter->fontMetrics().elidedText(
+                    title,
+                    Qt::ElideRight,
+                    std::max(0, static_cast<int>(title_rect.width()))));
 
-            const int maximum_rows = std::max(
-                0,
-                static_cast<int>((rect.height() - kAlarmHeaderHeight)
-                                 / kAlarmRowHeight));
-            const int visible_rows = std::min(
-                maximum_rows, static_cast<int>(alarm_records_.size()));
+            const int visible_rows = static_cast<int>(visibleAlarmRecordCount());
             if (visible_rows == 0)
             {
                 painter->setPen(configuredTextColor(QColor(QStringLiteral("#6f7a82"))));
@@ -273,9 +316,11 @@ public:
                                     : QObject::tr("运行时显示当前报警"));
                 break;
             }
+            const std::size_t first_record = alarmFirstRecordIndex();
             for (int row = 0; row < visible_rows; ++row)
             {
-                const AlarmRecord &record = alarm_records_[static_cast<std::size_t>(row)];
+                const AlarmRecord &record = alarm_records_[
+                    first_record + static_cast<std::size_t>(row)];
                 const QRectF row_rect(
                     rect.left(),
                     header.bottom() + row * kAlarmRowHeight,
@@ -289,23 +334,43 @@ public:
                 painter->setPen(configuredTextColor(QColor(QStringLiteral("#8d1f1f"))));
                 const QString state = record.acknowledged
                     ? QObject::tr("已确认") : QObject::tr("未确认");
+                const QRectF time_rect(
+                    row_rect.left() + kAlarmCellLeftPadding,
+                    row_rect.top(),
+                    kAlarmTimeColumnWidth,
+                    row_rect.height());
+                const QRectF state_rect(
+                    time_rect.right() + kAlarmColumnSpacing,
+                    row_rect.top(),
+                    kAlarmStateColumnWidth,
+                    row_rect.height());
+                const qreal message_left =
+                    state_rect.right() + kAlarmColumnSpacing;
+                const QRectF message_rect(
+                    message_left,
+                    row_rect.top(),
+                    std::max(
+                        0.0,
+                        row_rect.right() - kAlarmCellRightPadding
+                            - message_left),
+                    row_rect.height());
                 painter->drawText(
-                    QRectF(row_rect.left() + 5, row_rect.top(), 58, row_rect.height()),
+                    time_rect,
                     Qt::AlignVCenter | Qt::AlignLeft,
                     alarmTimeText(record.occurredAt));
                 painter->drawText(
-                    QRectF(row_rect.left() + 66, row_rect.top(), 52, row_rect.height()),
+                    state_rect,
                     Qt::AlignVCenter | Qt::AlignLeft,
                     state);
                 painter->drawText(
-                    QRectF(
-                        row_rect.left() + 120,
-                        row_rect.top(),
-                        std::max(0.0, row_rect.width() - 125),
-                        row_rect.height()),
+                    message_rect,
                     Qt::AlignVCenter | Qt::AlignLeft,
-                    QString::fromUtf8(
-                        record.message.data(), static_cast<int>(record.message.size())));
+                    painter->fontMetrics().elidedText(
+                        QString::fromUtf8(
+                            record.message.data(),
+                            static_cast<int>(record.message.size())),
+                        Qt::ElideRight,
+                        std::max(0, static_cast<int>(message_rect.width()))));
             }
             break;
         }
@@ -340,6 +405,14 @@ public:
     void setInteractionState(
         bool editable, bool runtime_active, bool runtime_write_enabled)
     {
+        if (control_.type == HmiControlType::AlarmList)
+        {
+            prepareGeometryChange();
+            if (!runtime_active)
+            {
+                alarm_page_ = 0U;
+            }
+        }
         editing_enabled_ = editable;
         runtime_active_ = runtime_active;
         runtime_write_enabled_ = runtime_active && runtime_write_enabled;
@@ -396,7 +469,14 @@ public:
 
     void setAlarmRecords(const std::vector<AlarmRecord> &records)
     {
+        if (control_.type == HmiControlType::AlarmList)
+        {
+            prepareGeometryChange();
+        }
         alarm_records_ = records;
+        const std::size_t page_count = alarmPageCount();
+        alarm_page_ = page_count == 0U
+            ? 0U : std::min(alarm_page_, page_count - 1U);
         updateAlarmVisibility();
         update();
     }
@@ -428,14 +508,40 @@ protected:
         {
             if (event->pos().y() < kAlarmHeaderHeight)
             {
+                const QRectF content_rect =
+                    visibleControlRect().adjusted(1, 1, -1, -1);
+                const QRectF header(
+                    content_rect.left(),
+                    content_rect.top(),
+                    content_rect.width(),
+                    kAlarmHeaderHeight);
+                const std::size_t page_count = alarmPageCount();
+                if (alarmPreviousPageRect(header).contains(event->pos())
+                    && alarm_page_ > 0U)
+                {
+                    prepareGeometryChange();
+                    --alarm_page_;
+                    update();
+                }
+                else if (alarmNextPageRect(header).contains(event->pos())
+                         && alarm_page_ + 1U < page_count)
+                {
+                    prepareGeometryChange();
+                    ++alarm_page_;
+                    update();
+                }
                 event->accept();
                 return;
             }
             const int row = static_cast<int>(
                 (event->pos().y() - kAlarmHeaderHeight) / kAlarmRowHeight);
-            if (row >= 0 && row < static_cast<int>(alarm_records_.size()))
+            const std::size_t record_index = alarmFirstRecordIndex()
+                + static_cast<std::size_t>(std::max(0, row));
+            if (row >= 0
+                && row < static_cast<int>(visibleAlarmRecordCount())
+                && record_index < alarm_records_.size())
             {
-                const AlarmRecord &record = alarm_records_[static_cast<std::size_t>(row)];
+                const AlarmRecord &record = alarm_records_[record_index];
                 if (!record.acknowledged && alarm_acknowledge_)
                 {
                     alarm_acknowledge_(record.definitionId);
@@ -543,6 +649,86 @@ protected:
     }
 
 private:
+    std::size_t alarmPageSize() const
+    {
+        const QRectF rect = controlRect().adjusted(1, 1, -1, -1);
+        const int rows_by_height = std::max(
+            0,
+            static_cast<int>((rect.height() - kAlarmHeaderHeight)
+                             / kAlarmRowHeight));
+        return static_cast<std::size_t>(std::min(
+            rows_by_height, ProjectLimits::kMaximumVisibleAlarmRows));
+    }
+
+    std::size_t alarmPageCount() const
+    {
+        const std::size_t page_size = alarmPageSize();
+        return page_size == 0U || alarm_records_.empty()
+            ? 0U
+            : (alarm_records_.size() + page_size - 1U) / page_size;
+    }
+
+    std::size_t alarmFirstRecordIndex() const
+    {
+        return alarm_page_ * alarmPageSize();
+    }
+
+    std::size_t visibleAlarmRecordCount() const
+    {
+        const std::size_t first_record = alarmFirstRecordIndex();
+        if (first_record >= alarm_records_.size())
+        {
+            return 0U;
+        }
+        return std::min(
+            alarmPageSize(), alarm_records_.size() - first_record);
+    }
+
+    QRectF visibleControlRect() const
+    {
+        const QRectF full_rect = controlRect();
+        if (control_.type != HmiControlType::AlarmList || !runtime_active_)
+        {
+            return full_rect;
+        }
+        const qreal content_height = kAlarmHeaderHeight
+            + static_cast<qreal>(visibleAlarmRecordCount()) * kAlarmRowHeight
+            + 2.0;
+        return {full_rect.left(),
+                full_rect.top(),
+                full_rect.width(),
+                std::min(full_rect.height(), content_height)};
+    }
+
+    QRectF alarmNextPageRect(const QRectF &header) const
+    {
+        return {
+            header.right() - kAlarmCellRightPadding - kAlarmPageButtonSize,
+            header.center().y() - kAlarmPageButtonSize / 2.0,
+            kAlarmPageButtonSize,
+            kAlarmPageButtonSize};
+    }
+
+    QRectF alarmPageIndicatorRect(const QRectF &header) const
+    {
+        const QRectF next_rect = alarmNextPageRect(header);
+        return {
+            next_rect.left() - kAlarmPageIndicatorWidth,
+            header.top(),
+            kAlarmPageIndicatorWidth,
+            header.height()};
+    }
+
+    QRectF alarmPreviousPageRect(const QRectF &header) const
+    {
+        const QRectF indicator_rect = alarmPageIndicatorRect(header);
+        return {
+            indicator_rect.left() - kAlarmPageButtonSize,
+            header.center().y() - kAlarmPageButtonSize / 2.0,
+            kAlarmPageButtonSize,
+            kAlarmPageButtonSize};
+    }
+
     void updateAlarmVisibility()
     {
         if (control_.type != HmiControlType::AlarmList)
@@ -616,6 +802,14 @@ private:
                 font.setPointSize(point_size);
             }
         }
+        else if (control_.type == HmiControlType::AlarmList
+                 && font.pointSize() > 0)
+        {
+            font.setPointSize(std::max(
+                ProjectLimits::kMinimumHmiFontPointSize,
+                font.pointSize()
+                    - ProjectLimits::kAlarmDefaultFontPointReduction));
+        }
         const auto font_bold = control_.properties.find(
             HmiAppearanceProperty::kFontBold);
         if (font_bold != control_.properties.cend())
@@ -661,6 +855,7 @@ private:
     std::function<void(const std::string &)> page_navigation_;
     std::function<void(const std::string &)> alarm_acknowledge_;
     std::vector<AlarmRecord> alarm_records_;
+    std::size_t alarm_page_ = 0U;
     bool editing_enabled_ = true;
     bool runtime_active_ = false;
     bool runtime_write_enabled_ = false;
diff --git a/app/src/ui/hmi_runtime_window.cpp b/app/src/ui/hmi_runtime_window.cpp
deleted file mode 100644
index 678b36c..0000000
--- a/app/src/ui/hmi_runtime_window.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-#include "hmi_runtime_window.h"
-
-#include "hmi_editor_widget.h"
-#include "services/alarm_service.h"
-#include "services/hmi_editor_service.h"
-#include "services/hmi_runtime_service.h"
-#include "services/project_service.h"
-#include "toolbar_icon_factory.h"
-#include "ui_hmi_runtime_window.h"
-
-#include <QCloseEvent>
-#include <QToolButton>
-
-#include <algorithm>
-
-namespace {
-
-QString fromUtf8(const std::string &value)
-{
-    return QString::fromUtf8(value.data(), static_cast<int>(value.size()));
-}
-
-} // namespace
-
-HmiRuntimeWindow::HmiRuntimeWindow(
-    HmiEditorService &hmi_editor_service,
-    HmiRuntimeService &hmi_runtime_service,
-    AlarmService &alarm_service,
-    ProjectService &project_service,
-    QWidget *parent)
-    : QMainWindow(parent),
-      ui_(std::make_unique<Ui::HmiRuntimeWindow>()),
-      project_service_(project_service)
-{
-    ui_->setupUi(this);
-    setObjectName(QStringLiteral("hmiRuntimeWindow"));
-    ui_->exitRuntimeButton->setIcon(makeUiIcon(UiIcon::Exit));
-    hmi_view_ = new HmiEditorWidget(
-        hmi_editor_service,
-        hmi_runtime_service,
-        alarm_service,
-        ui_->hmiViewContainer);
-    hmi_view_->setObjectName(QStringLiteral("hmiRuntimeHmiView"));
-    hmi_view_->setEditingEnabled(false);
-    ui_->hmiViewLayout->addWidget(hmi_view_);
-
-    connect(hmi_view_, &HmiEditorWidget::pageNavigationRequested,
-            this, &HmiRuntimeWindow::pageNavigationRequested);
-    connect(ui_->exitRuntimeButton, &QToolButton::clicked,
-            this, &HmiRuntimeWindow::exitRequested);
-}
-
-HmiRuntimeWindow::~HmiRuntimeWindow() = default;
-
-void HmiRuntimeWindow::setRuntimePage(const std::string &page_id)
-{
-    hmi_view_->setPageId(page_id);
-    const auto page = std::find_if(
-        project_service_.project().hmiPages.cbegin(),
-        project_service_.project().hmiPages.cend(),
-        [&page_id](const HmiPage &candidate) { return candidate.id == page_id; });
-    ui_->runtimePageLabel->setText(
-        page == project_service_.project().hmiPages.cend()
-            ? tr("未选择页面") : fromUtf8(page->name));
-}
-
-void HmiRuntimeWindow::reloadRuntimePage()
-{
-    hmi_view_->reloadPage();
-}
-
-void HmiRuntimeWindow::setMode(
-    ApplicationMode mode, PlcConnectionState plc_state)
-{
-    const bool offline = mode == ApplicationMode::OfflineRunning;
-    const bool online = mode == ApplicationMode::OnlineRunning;
-    runtime_active_ = offline || online;
-    hmi_view_->setRuntimeActive(runtime_active_);
-    if (!runtime_active_)
-    {
-        hmi_view_->setRuntimeWriteEnabled(false);
-    }
-    ui_->modeLabel->setText(
-        offline ? tr("离线仿真 · 虚拟 M/D")
-        : online && plc_state == PlcConnectionState::Connected
-            ? tr("真机运行 · PLC 已连接")
-        : online ? tr("真机运行 · PLC 通信不可用")
-        : tr("当前未运行"));
-}
-
-void HmiRuntimeWindow::setHmiWriteEnabled(bool enabled)
-{
-    hmi_view_->setRuntimeWriteEnabled(runtime_active_ && enabled);
-}
-
-void HmiRuntimeWindow::refreshValues()
-{
-    hmi_view_->refreshRuntimeValues();
-}
-
-void HmiRuntimeWindow::showForRuntime()
-{
-    if (!isVisible())
-    {
-        showMaximized();
-    }
-    else
-    {
-        raise();
-        activateWindow();
-    }
-}
-
-void HmiRuntimeWindow::hideForEditing()
-{
-    hide();
-}
-
-void HmiRuntimeWindow::closeForApplicationExit()
-{
-    runtime_active_ = false;
-    close();
-}
-
-void HmiRuntimeWindow::closeEvent(QCloseEvent *event)
-{
-    if (runtime_active_)
-    {
-        emit exitRequested();
-        event->ignore();
-        return;
-    }
-    QMainWindow::closeEvent(event);
-}
diff --git a/app/src/ui/hmi_runtime_window.h b/app/src/ui/hmi_runtime_window.h
deleted file mode 100644
index 36d8f9d..0000000
--- a/app/src/ui/hmi_runtime_window.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/**
- * @file hmi_runtime_window.h
- * @brief 定义面向操作员的独立 HMI 运行窗口
- * @author suyu
- */
-
-#pragma once
-
-#include "domain/runtime_state.h"
-#include "services/plc_communication_gateway.h"
-
-#include <QMainWindow>
-
-#include <memory>
-#include <string>
-
-namespace Ui {
-class HmiRuntimeWindow;
-}
-
-class AlarmService;
-class HmiEditorService;
-class HmiEditorWidget;
-class HmiRuntimeService;
-class ProjectService;
-class QCloseEvent;
-
-// 独立显示运行 HMI，工程编辑和运行模式切换仍由外层控制器负责
-class HmiRuntimeWindow final : public QMainWindow
-{
-    Q_OBJECT
-
-public:
-    HmiRuntimeWindow(
-        HmiEditorService &hmi_editor_service,
-        HmiRuntimeService &hmi_runtime_service,
-        AlarmService &alarm_service,
-        ProjectService &project_service,
-        QWidget *parent = nullptr);
-    ~HmiRuntimeWindow() override;
-
-    void setRuntimePage(const std::string &page_id);
-    void reloadRuntimePage();
-    void setMode(ApplicationMode mode, PlcConnectionState plc_state);
-    void setHmiWriteEnabled(bool enabled);
-    void refreshValues();
-    void showForRuntime();
-    void hideForEditing();
-    void closeForApplicationExit();
-
-signals:
-    void pageNavigationRequested(const QString &target_page_id);
-    void exitRequested();
-
-protected:
-    void closeEvent(QCloseEvent *event) override;
-
-private:
-    std::unique_ptr<Ui::HmiRuntimeWindow> ui_;
-    ProjectService &project_service_;
-    HmiEditorWidget *hmi_view_ = nullptr;
-    bool runtime_active_ = false;
-};
diff --git a/app/src/ui/hmi_runtime_window.ui b/app/src/ui/hmi_runtime_window.ui
deleted file mode 100644
index 89b557f..0000000
--- a/app/src/ui/hmi_runtime_window.ui
+++ /dev/null
@@ -1,49 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>HmiRuntimeWindow</class>
- <widget class="QMainWindow" name="HmiRuntimeWindow">
-  <property name="geometry">
-   <rect><x>0</x><y>0</y><width>1280</width><height>800</height></rect>
-  </property>
-  <property name="windowTitle"><string>HMI 运行</string></property>
-  <widget class="QWidget" name="centralWidget">
-   <layout class="QVBoxLayout" name="centralLayout">
-    <property name="spacing"><number>0</number></property>
-    <property name="leftMargin"><number>0</number></property>
-    <property name="topMargin"><number>0</number></property>
-    <property name="rightMargin"><number>0</number></property>
-    <property name="bottomMargin"><number>0</number></property>
-    <item>
-     <widget class="QFrame" name="runtimeHeaderFrame">
-      <property name="minimumSize"><size><width>0</width><height>42</height></size></property>
-      <property name="maximumSize"><size><width>16777215</width><height>42</height></size></property>
-      <property name="frameShape"><enum>QFrame::StyledPanel</enum></property>
-      <layout class="QHBoxLayout" name="runtimeHeaderLayout">
-       <property name="leftMargin"><number>12</number></property>
-       <property name="topMargin"><number>4</number></property>
-       <property name="rightMargin"><number>8</number></property>
-       <property name="bottomMargin"><number>4</number></property>
-       <item><widget class="QLabel" name="titleLabel"><property name="text"><string>HMI 运行</string></property><property name="styleSheet"><string notr="true">font-weight: 600;</string></property></widget></item>
-       <item><spacer name="headerSpacer"><property name="orientation"><enum>Qt::Horizontal</enum></property><property name="sizeHint" stdset="0"><size><width>40</width><height>20</height></size></property></spacer></item>
-       <item><widget class="QLabel" name="runtimePageLabel"><property name="text"><string>未选择页面</string></property><property name="alignment"><set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set></property></widget></item>
-       <item><widget class="QLabel" name="modeLabel"><property name="minimumSize"><size><width>170</width><height>0</height></size></property><property name="text"><string>当前未运行</string></property><property name="alignment"><set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set></property></widget></item>
-       <item><widget class="QToolButton" name="exitRuntimeButton"><property name="toolTip"><string>退出运行</string></property><property name="accessibleName"><string>退出运行</string></property><property name="text"><string>退出运行</string></property><property name="toolButtonStyle"><enum>Qt::ToolButtonIconOnly</enum></property></widget></item>
-      </layout>
-     </widget>
-    </item>
-    <item>
-     <widget class="QWidget" name="hmiViewContainer" native="true">
-      <layout class="QVBoxLayout" name="hmiViewLayout">
-       <property name="leftMargin"><number>0</number></property>
-       <property name="topMargin"><number>0</number></property>
-       <property name="rightMargin"><number>0</number></property>
-       <property name="bottomMargin"><number>0</number></property>
-      </layout>
-     </widget>
-    </item>
-   </layout>
-  </widget>
- </widget>
- <resources/>
- <connections/>
-</ui>
diff --git a/app/src/ui/logic_editor_widget.cpp b/app/src/ui/logic_editor_widget.cpp
index 58add82..4d0aa61 100644
--- a/app/src/ui/logic_editor_widget.cpp
+++ b/app/src/ui/logic_editor_widget.cpp
@@ -475,12 +475,17 @@ public:
                 configured_ ? counterAddressText(counter->address)
                             : tr("< C 地址 >"));
             painter->drawText(
-                QRectF(-kCellWidth / 2.0, 22, kCellWidth, 18),
-                Qt::AlignCenter,
-                configured_ ? QStringLiteral("CV %1 / PV %2")
+                QRectF(-kCellWidth / 2.0 + 4.0, 20, kCellWidth - 8.0, 18),
+                Qt::AlignCenter | Qt::TextSingleLine,
+                configured_ ? QStringLiteral("CV %1")
                                   .arg(registerAddressText(counter->currentValueAddress))
+                            : tr("< CV >"));
+            painter->drawText(
+                QRectF(-kCellWidth / 2.0 + 4.0, 38, kCellWidth - 8.0, 18),
+                Qt::AlignCenter | Qt::TextSingleLine,
+                configured_ ? QStringLiteral("PV %1")
                                   .arg(wordOperandText(counter->preset))
-                            : tr("< CV / PV >"));
+                            : tr("< PV >"));
         }
         else if (const auto *move = std::get_if<MoveNodeConfig>(&config_))
         {
diff --git a/app/src/ui/main_window.cpp b/app/src/ui/main_window.cpp
index 8ba350c..8ad1460 100644
--- a/app/src/ui/main_window.cpp
+++ b/app/src/ui/main_window.cpp
@@ -356,7 +356,7 @@ void MainWindow::configureActions()
             [this] { requestMode(ApplicationMode::OfflineRunning); });
     connect(ui_->onlineModeAction, &QAction::triggered, this,
             [this] { requestMode(ApplicationMode::OnlineRunning); });
-    connect(ui_->exitAction, &QAction::triggered, qApp, &QApplication::closeAllWindows);
+    connect(ui_->exitAction, &QAction::triggered, this, [this] { close(); });
     connect(ui_->newProjectAction, &QAction::triggered, this, &MainWindow::createNewProject);
     connect(ui_->saveProjectAction, &QAction::triggered, this, &MainWindow::saveProject);
     connect(ui_->saveAsProjectAction, &QAction::triggered, this, &MainWindow::saveProjectAs);
@@ -691,7 +691,6 @@ void MainWindow::configureActions()
                 }
                 if (index == 0 || index == 1)
                 {
-                    last_editing_tab_index_ = index;
                     refreshProjectUi();
                 }
             });
@@ -765,7 +764,6 @@ void MainWindow::configureAppearance()
     ui_->deleteLogicAction->setIcon(makeUiIcon(UiIcon::Delete));
     ui_->editorTabWidget->setTabIcon(0, makeUiIcon(UiIcon::HmiPage));
     ui_->editorTabWidget->setTabIcon(1, makeUiIcon(UiIcon::Logic));
-    ui_->editorTabWidget->setTabIcon(2, makeUiIcon(UiIcon::Runtime));
     ui_->outputDock->setMaximumHeight(220);
 
     mode_status_label_ = new QLabel(this);
@@ -833,7 +831,6 @@ void MainWindow::configureRuntimeMonitor()
 {
     runtime_panel_controller_ = std::make_unique<RuntimePanelController>(
         *this,
-        *ui_,
         runtime_mode_service_,
         project_service_,
         hmi_editor_service_,
@@ -1550,7 +1547,6 @@ void MainWindow::updateModeUi(const QString &message)
     const ModePolicy policy = runtime_mode_service_.policy();
     restoreCurrentModeAction();
     const bool running = mode != ApplicationMode::Editing;
-    ui_->editorTabWidget->setTabVisible(2, running);
     if (running)
     {
         if (hmi_navigation_service_->currentPageId().empty())
@@ -1566,17 +1562,12 @@ void MainWindow::updateModeUi(const QString &message)
             current_logic_id_,
             mode,
             runtime_mode_service_.plcConnectionState());
-        ui_->editorTabWidget->setCurrentWidget(ui_->runtimeMonitorTab);
     }
     else
     {
         hmi_navigation_service_->stop();
         runtime_panel_controller_->leaveRuntime(
             mode, runtime_mode_service_.plcConnectionState());
-        if (ui_->editorTabWidget->currentWidget() == ui_->runtimeMonitorTab)
-        {
-            ui_->editorTabWidget->setCurrentIndex(last_editing_tab_index_);
-        }
     }
     // 将同一份模式策略同步到所有可编辑入口，避免只禁用部分操作
     ui_->projectDock->setEnabled(policy.allowsProjectEditing);
diff --git a/app/src/ui/main_window.h b/app/src/ui/main_window.h
index 611e5d3..666b3f0 100644
--- a/app/src/ui/main_window.h
+++ b/app/src/ui/main_window.h
@@ -220,5 +220,4 @@ private:
     std::string current_hmi_page_id_;
     std::string current_logic_id_;
     bool plc_status_update_pending_ = false;
-    int last_editing_tab_index_ = 0;
 };
diff --git a/app/src/ui/main_window.ui b/app/src/ui/main_window.ui
index a9e76c2..14b89ad 100644
--- a/app/src/ui/main_window.ui
+++ b/app/src/ui/main_window.ui
@@ -207,18 +207,7 @@
         </item>
        </layout>
       </widget>
-      <widget class="QWidget" name="runtimeMonitorTab">
-       <attribute name="title">
-        <string>运行监控</string>
-       </attribute>
-       <layout class="QVBoxLayout" name="runtimeMonitorLayout">
-        <property name="leftMargin"><number>0</number></property>
-        <property name="topMargin"><number>0</number></property>
-        <property name="rightMargin"><number>0</number></property>
-        <property name="bottomMargin"><number>0</number></property>
-       </layout>
       </widget>
-     </widget>
     </item>
    </layout>
   </widget>
@@ -310,7 +299,7 @@
     <enum>TopToolBarArea</enum>
    </attribute>
    <attribute name="toolBarBreak">
-    <bool>false</bool>
+    <bool>true</bool>
    </attribute>
    <addaction name="addButtonAction"/>
    <addaction name="addIndicatorAction"/>
@@ -330,7 +319,7 @@
     <enum>TopToolBarArea</enum>
    </attribute>
    <attribute name="toolBarBreak">
-    <bool>false</bool>
+    <bool>true</bool>
    </attribute>
    <addaction name="addRungAction"/>
    <addaction name="insertHorizontalWireAction"/>
diff --git a/app/src/ui/property_panel_controller.cpp b/app/src/ui/property_panel_controller.cpp
index 5d7bf92..8081622 100644
--- a/app/src/ui/property_panel_controller.cpp
+++ b/app/src/ui/property_panel_controller.cpp
@@ -15,6 +15,7 @@
 #include <QColorDialog>
 #include <QComboBox>
 #include <QLabel>
+#include <QLineEdit>
 #include <QPushButton>
 #include <QDialog>
 #include <QObject>
@@ -40,6 +41,19 @@ std::string toUtf8(const QString &value)
     return std::string(bytes.constData(), static_cast<std::size_t>(bytes.size()));
 }
 
+int defaultFontPointSize(HmiControlType type)
+{
+    int point_size = QApplication::font().pointSize();
+    if (type == HmiControlType::AlarmList)
+    {
+        point_size -= ProjectLimits::kAlarmDefaultFontPointReduction;
+    }
+    return std::clamp(
+        point_size,
+        ProjectLimits::kMinimumHmiFontPointSize,
+        ProjectLimits::kMaximumHmiFontPointSize);
+}
+
 } // namespace
 
 PropertyPanelController::PropertyPanelController(
@@ -181,6 +195,7 @@ void PropertyPanelController::showControlProperties(const std::string &control_i
 
     if (!has_control)
     {
+        ui_.controlTextEdit->setMaxLength(32767);
         ui_.bindingAreaLabel->setVisible(false);
         ui_.bindingAreaComboBox->setVisible(false);
         ui_.bindingIndexLabel->setVisible(false);
@@ -207,6 +222,10 @@ void PropertyPanelController::showControlProperties(const std::string &control_i
         return;
     }
 
+    ui_.controlTextEdit->setMaxLength(
+        control->type == HmiControlType::AlarmList
+            ? static_cast<int>(ProjectLimits::kMaximumAlarmTitleCharacters)
+            : 32767);
     ui_.controlIdEdit->setText(fromUtf8(control->id));
     ui_.controlTextEdit->setText(fromUtf8(control->text));
     ui_.controlXSpinBox->setValue(control->bounds.x);
@@ -278,10 +297,7 @@ void PropertyPanelController::showControlProperties(const std::string &control_i
                   swatch_color.name(QColor::HexRgb))
             : QString{});
 
-    const int default_font_size = std::clamp(
-        QApplication::font().pointSize(),
-        ProjectLimits::kMinimumHmiFontPointSize,
-        ProjectLimits::kMaximumHmiFontPointSize);
+    const int default_font_size = defaultFontPointSize(control->type);
     int font_size = default_font_size;
     const auto font_size_property = control->properties.find(
         HmiAppearanceProperty::kFontSize);
diff --git a/app/src/ui/runtime_monitor_widget.cpp b/app/src/ui/runtime_monitor_widget.cpp
index 2d73cb2..1b227ed 100644
--- a/app/src/ui/runtime_monitor_widget.cpp
+++ b/app/src/ui/runtime_monitor_widget.cpp
@@ -6,11 +6,13 @@
 #include "services/hmi_navigation_service.h"
 #include "services/alarm_service.h"
 #include "services/project_service.h"
+#include "toolbar_icon_factory.h"
 #include "ui_runtime_monitor_widget.h"
 
 #include <QSplitter>
 #include <QComboBox>
 #include <QSignalBlocker>
+#include <QToolButton>
 
 #include <algorithm>
 
@@ -44,6 +46,7 @@ RuntimeMonitorWidget::RuntimeMonitorWidget(
       hmi_navigation_service_(hmi_navigation_service)
 {
     ui_->setupUi(this);
+    ui_->exitRuntimeButton->setIcon(makeUiIcon(UiIcon::Exit));
     hmi_view_ = new HmiEditorWidget(
         hmi_editor_service,
         hmi_runtime_service,
@@ -77,8 +80,9 @@ RuntimeMonitorWidget::RuntimeMonitorWidget(
                     return;
                 }
                 showRuntimePage(result.pageId);
-                emit runtimePageChanged(fromUtf8(result.pageId));
             });
+    connect(ui_->exitRuntimeButton, &QToolButton::clicked,
+            this, &RuntimeMonitorWidget::exitRequested);
     connect(ui_->runtimeLogicComboBox,
             QOverload<int>::of(&QComboBox::currentIndexChanged),
             this,
@@ -132,8 +136,10 @@ void RuntimeMonitorWidget::setMode(
     const bool online = mode == ApplicationMode::OnlineRunning;
     ui_->logicFrame->setVisible(offline);
     hmi_view_->setRuntimeActive(offline || online);
-    // 工程师诊断视图只投影 HMI，实际运行输入统一由独立 HMI 窗口处理
-    setHmiWriteEnabled(false);
+    if (!offline && !online)
+    {
+        setHmiWriteEnabled(false);
+    }
     setFreeMonitorWriteEnabled(offline
         || (online && plc_state == PlcConnectionState::Connected));
     if (!offline)
diff --git a/app/src/ui/runtime_monitor_widget.h b/app/src/ui/runtime_monitor_widget.h
index 0313dfd..4862d8c 100644
--- a/app/src/ui/runtime_monitor_widget.h
+++ b/app/src/ui/runtime_monitor_widget.h
@@ -52,7 +52,7 @@ public:
 
 signals:
     void navigationFailed(const QString &message);
-    void runtimePageChanged(const QString &page_id);
+    void exitRequested();
 
 private:
     void showRuntimePage(const std::string &page_id);
diff --git a/app/src/ui/runtime_monitor_widget.ui b/app/src/ui/runtime_monitor_widget.ui
index 7cbfa09..8302caa 100644
--- a/app/src/ui/runtime_monitor_widget.ui
+++ b/app/src/ui/runtime_monitor_widget.ui
@@ -13,6 +13,7 @@
      <item><widget class="QLabel" name="titleLabel"><property name="text"><string>运行监控</string></property><property name="styleSheet"><string notr="true">font-weight: 600;</string></property></widget></item>
      <item><spacer name="headerSpacer"><property name="orientation"><enum>Qt::Horizontal</enum></property><property name="sizeHint" stdset="0"><size><width>40</width><height>20</height></size></property></spacer></item>
      <item><widget class="QLabel" name="modeLabel"><property name="text"><string>当前未运行</string></property><property name="alignment"><set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set></property></widget></item>
+     <item><widget class="QToolButton" name="exitRuntimeButton"><property name="toolTip"><string>返回编辑态</string></property><property name="accessibleName"><string>返回编辑态</string></property><property name="text"><string>返回编辑态</string></property><property name="toolButtonStyle"><enum>Qt::ToolButtonIconOnly</enum></property></widget></item>
     </layout>
    </item>
    <item>
diff --git a/app/src/ui/runtime_monitor_window.cpp b/app/src/ui/runtime_monitor_window.cpp
new file mode 100644
index 0000000..3a0006b
--- /dev/null
+++ b/app/src/ui/runtime_monitor_window.cpp
@@ -0,0 +1,54 @@
+#include "runtime_monitor_window.h"
+
+#include "ui_runtime_monitor_window.h"
+
+#include <QCloseEvent>
+#include <QWidget>
+
+RuntimeMonitorWindow::RuntimeMonitorWindow(QWidget *parent)
+    : QMainWindow(parent, Qt::Window),
+      ui_(std::make_unique<Ui::RuntimeMonitorWindow>())
+{
+    ui_->setupUi(this);
+}
+
+RuntimeMonitorWindow::~RuntimeMonitorWindow() = default;
+
+void RuntimeMonitorWindow::setMonitorWidget(QWidget &widget)
+{
+    widget.setParent(ui_->centralWidget);
+    ui_->runtimeMonitorWindowLayout->addWidget(&widget);
+}
+
+void RuntimeMonitorWindow::showForRuntime()
+{
+    application_exit_ = false;
+    runtime_active_ = true;
+    showMaximized();
+    raise();
+    activateWindow();
+}
+
+void RuntimeMonitorWindow::hideForEditing()
+{
+    runtime_active_ = false;
+    hide();
+}
+
+void RuntimeMonitorWindow::closeForApplicationExit()
+{
+    application_exit_ = true;
+    runtime_active_ = false;
+    close();
+}
+
+void RuntimeMonitorWindow::closeEvent(QCloseEvent *event)
+{
+    if (runtime_active_ && !application_exit_)
+    {
+        emit exitRequested();
+        event->ignore();
+        return;
+    }
+    QMainWindow::closeEvent(event);
+}
diff --git a/app/src/ui/runtime_monitor_window.h b/app/src/ui/runtime_monitor_window.h
new file mode 100644
index 0000000..33623ba
--- /dev/null
+++ b/app/src/ui/runtime_monitor_window.h
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <QMainWindow>
+
+#include <memory>
+
+namespace Ui {
+class RuntimeMonitorWindow;
+}
+
+class QCloseEvent;
+class QWidget;
+
+// 承载唯一工程师运行监控投影的独立顶层窗口
+class RuntimeMonitorWindow final : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit RuntimeMonitorWindow(QWidget *parent = nullptr);
+    ~RuntimeMonitorWindow() override;
+
+    void setMonitorWidget(QWidget &widget);
+    void showForRuntime();
+    void hideForEditing();
+    void closeForApplicationExit();
+
+signals:
+    void exitRequested();
+
+protected:
+    void closeEvent(QCloseEvent *event) override;
+
+private:
+    std::unique_ptr<Ui::RuntimeMonitorWindow> ui_;
+    bool runtime_active_ = false;
+    bool application_exit_ = false;
+};
diff --git a/app/src/ui/runtime_monitor_window.ui b/app/src/ui/runtime_monitor_window.ui
new file mode 100644
index 0000000..668b040
--- /dev/null
+++ b/app/src/ui/runtime_monitor_window.ui
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>RuntimeMonitorWindow</class>
+ <widget class="QMainWindow" name="RuntimeMonitorWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>1280</width>
+    <height>800</height>
+   </rect>
+  </property>
+  <property name="minimumSize">
+   <size>
+    <width>960</width>
+    <height>640</height>
+   </size>
+  </property>
+  <property name="windowTitle">
+   <string>运行监控 - 综合平台编程器</string>
+  </property>
+  <widget class="QWidget" name="centralWidget">
+   <layout class="QVBoxLayout" name="runtimeMonitorWindowLayout">
+    <property name="spacing">
+     <number>0</number>
+    </property>
+    <property name="leftMargin">
+     <number>0</number>
+    </property>
+    <property name="topMargin">
+     <number>0</number>
+    </property>
+    <property name="rightMargin">
+     <number>0</number>
+    </property>
+    <property name="bottomMargin">
+     <number>0</number>
+    </property>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/app/src/ui/runtime_panel_controller.cpp b/app/src/ui/runtime_panel_controller.cpp
index 7ecf37e..4d1c41f 100644
--- a/app/src/ui/runtime_panel_controller.cpp
+++ b/app/src/ui/runtime_panel_controller.cpp
@@ -2,9 +2,9 @@
 
 #include "free_monitor_widget.h"
 #include "hmi_editor_widget.h"
-#include "hmi_runtime_window.h"
 #include "logic_editor_widget.h"
 #include "runtime_monitor_widget.h"
+#include "runtime_monitor_window.h"
 #include "services/alarm_service.h"
 #include "services/hmi_editor_service.h"
 #include "services/hmi_navigation_service.h"
@@ -14,7 +14,6 @@
 #include "services/project_service.h"
 #include "services/register_monitor_service.h"
 #include "services/runtime_mode_service.h"
-#include "ui_main_window.h"
 
 #include <QListWidget>
 #include <QLabel>
@@ -35,7 +34,6 @@ QString fromUtf8(const std::string &value)
 
 RuntimePanelController::RuntimePanelController(
     QWidget &parent,
-    Ui::MainWindow &ui,
     RuntimeModeService &runtime_mode_service,
     ProjectService &project_service,
     HmiEditorService &hmi_editor_service,
@@ -54,7 +52,6 @@ RuntimePanelController::RuntimePanelController(
     OutputReporter output_reporter,
     RuntimeExitRequester runtime_exit_requester)
     : parent_(parent),
-      ui_(ui),
       runtime_mode_service_(runtime_mode_service),
       project_service_(project_service),
       hmi_editor_service_(hmi_editor_service),
@@ -79,6 +76,9 @@ RuntimePanelController::~RuntimePanelController() = default;
 
 void RuntimePanelController::configure()
 {
+    runtime_monitor_window_ = std::make_unique<RuntimeMonitorWindow>(&parent_);
+    runtime_monitor_window_->setObjectName(
+        QStringLiteral("runtimeMonitorWindow"));
     runtime_monitor_widget_ = new RuntimeMonitorWidget(
         hmi_editor_service_,
         hmi_runtime_service_,
@@ -87,31 +87,19 @@ void RuntimePanelController::configure()
         hmi_navigation_service_,
         alarm_service_,
         register_monitor_service_,
-        ui_.runtimeMonitorTab);
+        runtime_monitor_window_.get());
     runtime_monitor_widget_->setObjectName(QStringLiteral("runtimeMonitorWidget"));
-    ui_.runtimeMonitorLayout->addWidget(runtime_monitor_widget_);
-    hmi_runtime_window_ = std::make_unique<HmiRuntimeWindow>(
-        hmi_editor_service_,
-        hmi_runtime_service_,
-        alarm_service_,
-        project_service_);
-    QObject::connect(hmi_runtime_window_.get(),
-            &HmiRuntimeWindow::pageNavigationRequested,
-            &parent_, [this](const QString &target_page_id)
+    runtime_monitor_window_->setMonitorWidget(*runtime_monitor_widget_);
+    QObject::connect(runtime_monitor_widget_, &RuntimeMonitorWidget::exitRequested,
+            &parent_, [this]
             {
-                const HmiNavigationResult result = hmi_navigation_service_.navigateTo(
-                    target_page_id.toUtf8().toStdString());
-                if (!result.succeeded)
+                if (runtime_exit_requester_)
                 {
-                    const QString message = fromUtf8(result.message);
-                    status_reporter_(message, 5000);
-                    output_reporter_(QObject::tr("页面导航失败：%1").arg(message));
-                    return;
+                    runtime_exit_requester_();
                 }
-                runtime_monitor_widget_->setRuntimePage(result.pageId);
-                hmi_runtime_window_->setRuntimePage(result.pageId);
             });
-    QObject::connect(hmi_runtime_window_.get(), &HmiRuntimeWindow::exitRequested,
+    QObject::connect(runtime_monitor_window_.get(),
+            &RuntimeMonitorWindow::exitRequested,
             &parent_, [this]
             {
                 if (runtime_exit_requester_)
@@ -141,17 +129,6 @@ void RuntimePanelController::configure()
                 status_reporter_(message, 5000);
                 output_reporter_(QObject::tr("页面导航失败：%1").arg(message));
             });
-    QObject::connect(runtime_monitor_widget_, &RuntimeMonitorWidget::runtimePageChanged,
-            &parent_, [this](const QString &page_id)
-            {
-                if (hmi_runtime_window_ != nullptr)
-                {
-                    hmi_runtime_window_->setRuntimePage(
-                        page_id.toUtf8().toStdString());
-                }
-            });
-    ui_.editorTabWidget->setTabVisible(2, false);
-
     runtime_refresh_timer_ = new QTimer(&parent_);
     runtime_refresh_timer_->setInterval(150);
     QObject::connect(runtime_refresh_timer_, &QTimer::timeout,
@@ -172,11 +149,6 @@ RuntimeMonitorWidget *RuntimePanelController::runtimeMonitorWidget() const
     return runtime_monitor_widget_;
 }
 
-HmiRuntimeWindow *RuntimePanelController::hmiRuntimeWindow() const
-{
-    return hmi_runtime_window_.get();
-}
-
 void RuntimePanelController::enterRuntime(
     const std::string &page_id,
     const std::string &logic_id,
@@ -186,13 +158,10 @@ void RuntimePanelController::enterRuntime(
     if (!runtime_session_active_)
     {
         runtime_monitor_widget_->setProjectObjects(page_id, logic_id);
-        hmi_runtime_window_->setRuntimePage(page_id);
-        hmi_runtime_window_->reloadRuntimePage();
         runtime_session_active_ = true;
     }
     runtime_monitor_widget_->setMode(mode, plc_state);
-    hmi_runtime_window_->setMode(mode, plc_state);
-    hmi_runtime_window_->showForRuntime();
+    runtime_monitor_window_->showForRuntime();
 }
 
 void RuntimePanelController::leaveRuntime(
@@ -200,15 +169,14 @@ void RuntimePanelController::leaveRuntime(
 {
     runtime_session_active_ = false;
     runtime_monitor_widget_->setMode(mode, plc_state);
-    hmi_runtime_window_->setMode(mode, plc_state);
-    hmi_runtime_window_->hideForEditing();
+    runtime_monitor_window_->hideForEditing();
 }
 
 void RuntimePanelController::closeForApplicationExit()
 {
-    if (hmi_runtime_window_ != nullptr)
+    if (runtime_monitor_window_ != nullptr)
     {
-        hmi_runtime_window_->closeForApplicationExit();
+        runtime_monitor_window_->closeForApplicationExit();
     }
 }
 
@@ -223,22 +191,16 @@ void RuntimePanelController::updateSimulationUi(bool report_fault)
     const SimulationState state = runtime_mode_service_.simulationState();
     const bool write_enabled = (online && plc_connected)
         || (offline && state == SimulationState::Running);
-    // 操作员输入只允许从独立 HMI 窗口发出，主窗口的画布全部只读
+    // 编辑画布始终只读，运行操作统一由运行监控中的 HMI 发出
     hmi_editor_widget_.setRuntimeWriteEnabled(false);
     if (runtime_monitor_widget_ != nullptr)
     {
-        runtime_monitor_widget_->setHmiWriteEnabled(false);
+        runtime_monitor_widget_->setHmiWriteEnabled(write_enabled);
         runtime_monitor_widget_->setFreeMonitorWriteEnabled(write_enabled);
         runtime_monitor_widget_->refreshValues(
             runtime_mode_service_.mode(),
             runtime_mode_service_.plcConnectionState());
     }
-    if (hmi_runtime_window_ != nullptr)
-    {
-        hmi_runtime_window_->setHmiWriteEnabled(write_enabled);
-        hmi_runtime_window_->refreshValues();
-    }
-
     switch (state)
     {
     case SimulationState::Running:
@@ -268,11 +230,6 @@ void RuntimePanelController::updateSimulationUi(bool report_fault)
             runtime_monitor_widget_->setProjectObjects(
                 hmi_navigation_service_.currentPageId(), logic_id);
         }
-        if (hmi_runtime_window_ != nullptr)
-        {
-            hmi_runtime_window_->setRuntimePage(
-                hmi_navigation_service_.currentPageId());
-        }
         logic_editor_widget_.setRuntimeTrace(
             runtime_mode_service_.offlineSimulationService()
                 .traceSnapshot().forLogic(logic_id),
@@ -328,10 +285,6 @@ void RuntimePanelController::handleRuntimeTimer()
             runtime_mode_service_.mode(),
             runtime_mode_service_.plcConnectionState());
     }
-    if (hmi_runtime_window_ != nullptr)
-    {
-        hmi_runtime_window_->refreshValues();
-    }
     updateSimulationUi(false);
 }
 
diff --git a/app/src/ui/runtime_panel_controller.h b/app/src/ui/runtime_panel_controller.h
index cc8b853..66367db 100644
--- a/app/src/ui/runtime_panel_controller.h
+++ b/app/src/ui/runtime_panel_controller.h
@@ -12,7 +12,6 @@
 class AlarmService;
 class HmiEditorService;
 class HmiEditorWidget;
-class HmiRuntimeWindow;
 class HmiNavigationService;
 class HmiRuntimeService;
 class LogicEditorService;
@@ -22,13 +21,10 @@ class ProjectService;
 class RegisterMonitorService;
 class RuntimeModeService;
 class RuntimeMonitorWidget;
+class RuntimeMonitorWindow;
 class QTimer;
 class QWidget;
 
-namespace Ui {
-class MainWindow;
-}
-
 // 组织运行监控工作台、运行刷新定时器和离线执行器反馈
 class RuntimePanelController final
 {
@@ -40,7 +36,6 @@ public:
 
     RuntimePanelController(
         QWidget &parent,
-        Ui::MainWindow &ui,
         RuntimeModeService &runtime_mode_service,
         ProjectService &project_service,
         HmiEditorService &hmi_editor_service,
@@ -70,7 +65,6 @@ public:
     void closeForApplicationExit();
     void updateSimulationUi(bool report_fault);
     RuntimeMonitorWidget *runtimeMonitorWidget() const;
-    HmiRuntimeWindow *hmiRuntimeWindow() const;
 
 private:
     void handleRuntimeTimer();
@@ -78,7 +72,6 @@ private:
     void handleScanCompleted();
 
     QWidget &parent_;
-    Ui::MainWindow &ui_;
     RuntimeModeService &runtime_mode_service_;
     ProjectService &project_service_;
     HmiEditorService &hmi_editor_service_;
@@ -96,8 +89,8 @@ private:
     StatusReporter status_reporter_;
     OutputReporter output_reporter_;
     RuntimeExitRequester runtime_exit_requester_;
+    std::unique_ptr<RuntimeMonitorWindow> runtime_monitor_window_;
     RuntimeMonitorWidget *runtime_monitor_widget_ = nullptr;
-    std::unique_ptr<HmiRuntimeWindow> hmi_runtime_window_;
     QTimer *runtime_refresh_timer_ = nullptr;
     bool runtime_session_active_ = false;
 };
diff --git a/app/tests/main_window_tests.cpp b/app/tests/main_window_tests.cpp
index 8815972..801ae41 100644
--- a/app/tests/main_window_tests.cpp
+++ b/app/tests/main_window_tests.cpp
@@ -13,13 +13,14 @@
 #include "services/runtime_mode_service.h"
 #include "services/register_monitor_service.h"
 #include "services/register_comment_service.h"
+#include "ui/alarm_configuration_dialog.h"
 #include "ui/hmi_editor_widget.h"
 #include "ui/free_monitor_widget.h"
-#include "ui/hmi_runtime_window.h"
 #include "ui/logic_editor_widget.h"
 #include "ui/main_window.h"
 #include "ui/plc_connection_dialog.h"
 #include "ui/runtime_monitor_widget.h"
+#include "ui/runtime_monitor_window.h"
 
 #include <QAction>
 #include <QApplication>
@@ -39,6 +40,7 @@
 #include <QPushButton>
 #include <QStringList>
 #include <QTableWidget>
+#include <QTabBar>
 #include <QTabWidget>
 #include <QTimer>
 #include <QTest>
@@ -280,19 +282,6 @@ ObjectType *requiredChild(MainWindow &window, const char *name)
     return child;
 }
 
-HmiRuntimeWindow *findHmiRuntimeWindow()
-{
-    for (QWidget *widget : QApplication::topLevelWidgets())
-    {
-        auto *runtime_window = qobject_cast<HmiRuntimeWindow *>(widget);
-        if (runtime_window != nullptr)
-        {
-            return runtime_window;
-        }
-    }
-    return nullptr;
-}
-
 QColor renderedColorAt(HmiEditorWidget &view, const QPoint &viewport_position)
 {
     QImage image(view.viewport()->size(), QImage::Format_ARGB32_Premultiplied);
@@ -591,14 +580,28 @@ void testRuntimeAlarmListInteraction()
     require(alarm_list != nullptr && !alarm_list->binding.has_value(),
             "AlarmList must not require a register binding");
 
-    AlarmDefinition definition;
-    definition.address = RegisterAddress{RegisterArea::M, 0};
-    definition.condition = AlarmCondition::MOn;
-    definition.message = "Emergency stop";
-    const AlarmEditorResult alarm_result =
-        alarm_editor_service.addDefinition(definition);
-    require(alarm_result.succeeded,
-            "runtime alarm test must create an M alarm definition");
+    std::vector<std::string> alarm_ids;
+    for (int index = 0; index <= ProjectLimits::kMaximumVisibleAlarmRows; ++index)
+    {
+        AlarmDefinition definition;
+        definition.address = RegisterAddress{RegisterArea::M, index};
+        definition.condition = AlarmCondition::MOn;
+        definition.message = "Alarm " + std::to_string(index);
+        const AlarmEditorResult alarm_result =
+            alarm_editor_service.addDefinition(definition);
+        require(alarm_result.succeeded,
+                "runtime alarm test must create paged M alarm definitions");
+        alarm_ids.push_back(alarm_result.id);
+    }
+
+    AlarmConfigurationDialog configuration_dialog(alarm_editor_service);
+    QLineEdit *message_edit = configuration_dialog.findChild<QLineEdit *>(
+        QStringLiteral("messageEdit"));
+    require(message_edit != nullptr
+                && message_edit->maxLength()
+                    == static_cast<int>(
+                        ProjectLimits::kMaximumAlarmMessageCharacters),
+            "alarm configuration must limit messages to 20 characters");
 
     HmiEditorWidget view(editor_service, runtime_service, alarm_service);
     view.setPageId(page_id);
@@ -632,6 +635,8 @@ void testRuntimeAlarmListInteraction()
             "an active M alarm must be available to AlarmList");
     require(alarm_item->isVisible() && alarm_item->zValue() > 0.0,
             "AlarmList must appear above the page for an active alarm");
+    require(alarm_item->boundingRect().height() < alarm_list->bounds.height,
+            "a runtime AlarmList with one record must remove unused row space");
 
     const QPoint header_position = view.mapFromScene(QPointF(
         alarm_list->bounds.x + 20.0, alarm_list->bounds.y + 10.0));
@@ -647,7 +652,40 @@ void testRuntimeAlarmListInteraction()
     require(alarm_service.records().front().acknowledged,
             "clicking an active AlarmList row must acknowledge the alarm");
 
-    repository.writeBit(RegisterAddress{RegisterArea::M, 0}, false);
+    for (int index = 1; index <= ProjectLimits::kMaximumVisibleAlarmRows; ++index)
+    {
+        repository.writeBit(RegisterAddress{RegisterArea::M, index}, true);
+    }
+    alarm_service.reset();
+    alarm_service.refresh();
+    view.refreshRuntimeValues();
+    QApplication::processEvents();
+    require(alarm_service.records().size()
+                == static_cast<std::size_t>(
+                    ProjectLimits::kMaximumVisibleAlarmRows + 1),
+            "AlarmList pagination must retain records beyond the visible row limit");
+    require(alarm_item->boundingRect().height() == alarm_list->bounds.height,
+            "a full AlarmList page must use its configured maximum height");
+
+    const QPoint next_page_position = view.mapFromScene(QPointF(
+        alarm_list->bounds.x + alarm_list->bounds.width - 14.0,
+        alarm_list->bounds.y + 10.0));
+    QTest::mouseClick(
+        view.viewport(), Qt::LeftButton, Qt::NoModifier, next_page_position);
+    QApplication::processEvents();
+    require(alarm_item->boundingRect().height() < alarm_list->bounds.height,
+            "the final partial alarm page must shrink to its visible rows");
+
+    QTest::mouseClick(
+        view.viewport(), Qt::LeftButton, Qt::NoModifier, first_row_position);
+    require(alarm_service.records().back().definitionId == alarm_ids.front()
+                && alarm_service.records().back().acknowledged,
+            "the next AlarmList page must acknowledge its own first record");
+
+    for (int index = 0; index <= ProjectLimits::kMaximumVisibleAlarmRows; ++index)
+    {
+        repository.writeBit(RegisterAddress{RegisterArea::M, index}, false);
+    }
     alarm_service.refresh();
     view.refreshRuntimeValues();
     QApplication::processEvents();
@@ -963,6 +1001,7 @@ void testModeActionsControlEditingAvailability()
         window, "deleteVerticalWireAction");
     QDockWidget *project_dock = requiredChild<QDockWidget>(window, "projectDock");
     QDockWidget *properties_dock = requiredChild<QDockWidget>(window, "propertiesDock");
+    QDockWidget *output_dock = requiredChild<QDockWidget>(window, "outputDock");
     QLabel *selection = requiredChild<QLabel>(window, "selectionValueLabel");
     QLineEdit *text_edit = requiredChild<QLineEdit>(window, "controlTextEdit");
     QLineEdit *text_color_edit = requiredChild<QLineEdit>(window, "textColorEdit");
@@ -988,14 +1027,21 @@ void testModeActionsControlEditingAvailability()
     LogicEditorWidget *logic_editor = requiredChild<LogicEditorWidget>(
         window, "logicEditorWidget");
     QLabel *executor_status = requiredChild<QLabel>(window, "executorStatusLabel");
-    QWidget *runtime_tab = requiredChild<QWidget>(window, "runtimeMonitorTab");
+    RuntimeMonitorWindow *runtime_window = requiredChild<RuntimeMonitorWindow>(
+        window, "runtimeMonitorWindow");
     QWidget *runtime_hmi = requiredChild<QWidget>(window, "runtimeHmiView");
     QWidget *runtime_logic = requiredChild<QWidget>(window, "runtimeLogicView");
     QWidget *free_monitor = requiredChild<QWidget>(window, "freeMonitorWidget");
     QTabWidget *editor_tabs = requiredChild<QTabWidget>(window, "editorTabWidget");
     QTreeWidget *project_tree = requiredChild<QTreeWidget>(window, "projectTree");
-    require(!runtime_tab->isVisible(),
-            "runtime monitor workspace must be hidden while editing");
+    const bool initially_maximized = window.isMaximized();
+    const bool project_dock_initially_visible = project_dock->isVisible();
+    const bool properties_dock_initially_visible = properties_dock->isVisible();
+    const bool output_dock_initially_visible = output_dock->isVisible();
+    require(!runtime_window->isVisible()
+                && window.findChild<QWidget *>(QStringLiteral("runtimeMonitorTab"))
+                    == nullptr,
+            "runtime monitor window must be hidden while editing and absent from editor tabs");
     for (const char *action_name : {
              "exitAction",
              "newProjectAction",
@@ -1056,11 +1102,10 @@ void testModeActionsControlEditingAvailability()
                 && !logic_timer_counter_menu->icon().isNull()
                 && !logic_data_menu->icon().isNull(),
             "every grouped toolbar menu must have an icon");
-    require(editor_tabs->count() == 3
+    require(editor_tabs->count() == 2
                 && !editor_tabs->tabIcon(0).isNull()
-                && !editor_tabs->tabIcon(1).isNull()
-                && !editor_tabs->tabIcon(2).isNull(),
-            "every editor workspace tab must have an icon");
+                && !editor_tabs->tabIcon(1).isNull(),
+            "the two editor tabs must remain present and have icons");
     QToolButton *monitor_remove = free_monitor->findChild<QToolButton *>(
         QStringLiteral("removeButton"));
     QToolButton *monitor_clear = free_monitor->findChild<QToolButton *>(
@@ -1237,6 +1282,26 @@ void testModeActionsControlEditingAvailability()
     require(editor_service.findPage(page_id)->controls.empty(),
             "deleting a ProgressBar must remove it from the HMI page");
 
+    requiredChild<QAction>(window, "addAlarmListAction")->trigger();
+    const HmiControl *default_alarm_list = editor_service.findControl(
+        page_id, "alarm-list-1");
+    const int expected_alarm_font_size = std::clamp(
+        QApplication::font().pointSize()
+            - ProjectLimits::kAlarmDefaultFontPointReduction,
+        ProjectLimits::kMinimumHmiFontPointSize,
+        ProjectLimits::kMaximumHmiFontPointSize);
+    require(default_alarm_list != nullptr
+                && default_alarm_list->bounds.width == 360
+                && default_alarm_list->bounds.height == 136
+                && text_edit->maxLength()
+                    == static_cast<int>(
+                        ProjectLimits::kMaximumAlarmTitleCharacters)
+                && font_size->value() == expected_alarm_font_size,
+            "AlarmList defaults must expose five rows and the reduced font size");
+    delete_control_action->trigger();
+    require(editor_service.findPage(page_id)->controls.empty(),
+            "deleting an AlarmList must remove it from the HMI page");
+
     add_indicator_action->trigger();
     HmiControl runtime_indicator = *editor_service.findControl(page_id, "indicator-1");
     runtime_indicator.binding = RegisterAddress{RegisterArea::M, 3};
@@ -1415,6 +1480,14 @@ void testModeActionsControlEditingAvailability()
             "project dock must be disabled while running");
     require(!properties_dock->isEnabled(),
             "properties dock must be disabled while running");
+    require(runtime_window->isVisible() && runtime_window->isMaximized()
+                && project_dock->isVisible() == project_dock_initially_visible
+                && properties_dock->isVisible()
+                    == properties_dock_initially_visible
+                && output_dock->isVisible() == output_dock_initially_visible
+                && editor_tabs->tabBar()->isVisible()
+                && window.isMaximized() == initially_maximized,
+            "runtime monitoring must open maximized without changing the editor layout");
     require(!add_button_action->isEnabled(),
             "HMI add controls must be disabled while running");
     require(!add_progress_bar_action->isEnabled(),
@@ -1424,7 +1497,7 @@ void testModeActionsControlEditingAvailability()
     require(!undo_action->isEnabled() && !redo_action->isEnabled()
                 && !delete_selection_action->isEnabled(),
             "undo, redo and delete must be disabled while running");
-    require(runtime_tab->isVisible() && runtime_hmi->isVisible()
+    require(runtime_window->isVisible() && runtime_hmi->isVisible()
                 && runtime_logic->isVisible() && free_monitor->isVisible(),
             "offline running must show HMI, ladder trace and free monitor together");
     auto *runtime_hmi_view = qobject_cast<HmiEditorWidget *>(runtime_hmi);
@@ -1461,14 +1534,21 @@ void testModeActionsControlEditingAvailability()
             "project dock must be restored after returning to editing");
     require(properties_dock->isEnabled(),
             "properties dock must be restored after returning to editing");
+    require(project_dock->isVisible() == project_dock_initially_visible
+                && properties_dock->isVisible()
+                    == properties_dock_initially_visible
+                && output_dock->isVisible() == output_dock_initially_visible
+                && editor_tabs->tabBar()->isVisible()
+                && window.isMaximized() == initially_maximized,
+            "returning to editing must restore the previous workspace layout");
     require(add_button_action->isEnabled(),
             "HMI add controls must be restored after returning to editing");
     require(add_progress_bar_action->isEnabled(),
             "ProgressBar creation must be restored after returning to editing");
     require(add_normally_open_action->isEnabled(),
             "logic add nodes must be restored after returning to editing");
-    require(!runtime_tab->isVisible(),
-            "returning to editing must hide the runtime monitor workspace");
+    require(!runtime_window->isVisible(),
+            "returning to editing must hide the runtime monitor window");
 
     online_action->trigger();
     require(mode_service.mode() == ApplicationMode::Editing,
@@ -1477,7 +1557,7 @@ void testModeActionsControlEditingAvailability()
             "rejected online running must restore the editing action");
 }
 
-void testIndependentHmiRuntimeWindowLifecycle()
+void testRuntimeMonitorWindowLifecycle()
 {
     TestProjectStorage storage;
     ProjectService project_service(storage);
@@ -1491,7 +1571,17 @@ void testIndependentHmiRuntimeWindowLifecycle()
     jump.pageJump = HmiPageJumpConfig{settings_page_id};
     require(editor_service.updateControl(
                 main_page_id, jump_result.id, jump).succeeded,
-            "runtime-window fixture must configure a PageJump target");
+            "runtime-workspace fixture must configure a PageJump target");
+    const HmiEditorResult button_result = editor_service.addControl(
+        main_page_id, HmiControlType::Button);
+    HmiControl button = *editor_service.findControl(
+        main_page_id, button_result.id);
+    button.binding = RegisterAddress{RegisterArea::M, 0};
+    button.buttonOperation = HmiButtonOperation::Toggle;
+    button.bounds = HmiRect{200, 20, 120, 40};
+    require(editor_service.updateControl(
+                main_page_id, button_result.id, button).succeeded,
+            "runtime-workspace fixture must configure an interactive HMI button");
     const HmiEditorResult return_jump_result = editor_service.addControl(
         settings_page_id, HmiControlType::PageJump);
     HmiControl return_jump = *editor_service.findControl(
@@ -1499,7 +1589,7 @@ void testIndependentHmiRuntimeWindowLifecycle()
     return_jump.pageJump = HmiPageJumpConfig{main_page_id};
     require(editor_service.updateControl(
                 settings_page_id, return_jump_result.id, return_jump).succeeded,
-            "runtime-window fixture must configure a PageJump back to the initial page");
+            "runtime-workspace fixture must configure a PageJump back to the initial page");
     VirtualRegisterRepository repository;
     HmiRuntimeService runtime_service(repository);
     AlarmEditorService alarm_editor_service(project_service);
@@ -1525,92 +1615,114 @@ void testIndependentHmiRuntimeWindowLifecycle()
 
     requiredChild<QAction>(window, "offlineModeAction")->trigger();
     QApplication::processEvents();
-    HmiRuntimeWindow *runtime_window = findHmiRuntimeWindow();
     require(mode_service.mode() == ApplicationMode::OfflineRunning,
             "offline mode must remain the authoritative runtime state");
-    require(runtime_window != nullptr && runtime_window->isVisible(),
-            "entering offline running must show an independent HMI window");
-    require(runtime_window->findChild<HmiEditorWidget *>(
-                QStringLiteral("hmiRuntimeHmiView")) != nullptr,
-            "independent HMI window must contain a runtime-only HMI view");
-    HmiEditorWidget *runtime_hmi = runtime_window->findChild<HmiEditorWidget *>(
-        QStringLiteral("hmiRuntimeHmiView"));
-    QGraphicsItem *jump_item = nullptr;
-    for (QGraphicsItem *item : runtime_hmi->scene()->items())
-    {
-        if (item->zValue() >= 0.0)
-        {
-            jump_item = item;
-            break;
-        }
-    }
-    require(jump_item != nullptr,
-            "independent HMI window must project the configured PageJump");
+    RuntimeMonitorWindow *runtime_window = requiredChild<RuntimeMonitorWindow>(
+        window, "runtimeMonitorWindow");
+    HmiEditorWidget *runtime_hmi = requiredChild<HmiEditorWidget>(
+        window, "runtimeHmiView");
+    require(runtime_window->isWindow() && runtime_window->isVisible()
+                && runtime_window->isMaximized(),
+            "offline running must show a maximized runtime monitor window");
+    require(window.findChildren<RuntimeMonitorWidget *>().size() == 1,
+            "the application must keep exactly one runtime monitor projection");
+    require(window.findChild<QWidget *>(QStringLiteral("runtimeMonitorTab")) == nullptr,
+            "the editor must not retain an embedded runtime monitor tab");
+
+    QTest::mouseClick(
+        runtime_hmi->viewport(), Qt::LeftButton, Qt::NoModifier,
+        runtime_hmi->mapFromScene(QPointF(
+            button.bounds.x + button.bounds.width / 2.0,
+            button.bounds.y + button.bounds.height / 2.0)));
+    QApplication::processEvents();
+    require(repository.readBit({RegisterArea::M, 0}).succeeded
+                && repository.readBit({RegisterArea::M, 0}).value,
+            "the unified runtime HMI must write to the active virtual repository");
+
     QTest::mouseClick(runtime_hmi->viewport(), Qt::LeftButton, Qt::NoModifier,
-                      runtime_hmi->mapFromScene(
-                          jump_item->mapToScene(jump_item->boundingRect().center())));
+                      runtime_hmi->mapFromScene(QPointF(
+                          jump.bounds.x + jump.bounds.width / 2.0,
+                          jump.bounds.y + jump.bounds.height / 2.0)));
     QApplication::processEvents();
     require(navigation_service.currentPageId() == settings_page_id,
-            "PageJump in the independent window must update the shared navigation session");
-    require(runtime_window->findChild<QLabel *>(QStringLiteral("runtimePageLabel"))
-                ->text() == QStringLiteral("Settings"),
-            "independent window title must follow the navigated runtime page");
+            "PageJump in the unified runtime HMI must update the navigation session");
     require(requiredChild<QLabel>(window, "runtimePageLabel")->text()
                 == QStringLiteral("Settings"),
-            "diagnostic runtime view must stay synchronized with the independent HMI page");
-    QGraphicsItem *return_jump_item = nullptr;
-    for (QGraphicsItem *item : runtime_hmi->scene()->items())
-    {
-        if (item->zValue() >= 0.0)
-        {
-            return_jump_item = item;
-            break;
-        }
-    }
-    require(return_jump_item != nullptr,
-            "the destination page must expose a PageJump back to the initial page");
+            "the runtime workspace header must follow the navigated HMI page");
     QTest::mouseClick(runtime_hmi->viewport(), Qt::LeftButton, Qt::NoModifier,
-                      runtime_hmi->mapFromScene(
-                          return_jump_item->mapToScene(
-                              return_jump_item->boundingRect().center())));
+                      runtime_hmi->mapFromScene(QPointF(
+                          return_jump.bounds.x + return_jump.bounds.width / 2.0,
+                          return_jump.bounds.y + return_jump.bounds.height / 2.0)));
     QApplication::processEvents();
     require(navigation_service.currentPageId() == main_page_id,
-            "the independent HMI must return to the initial page before editing");
-    require(runtime_window->findChild<QLabel *>(QStringLiteral("runtimePageLabel"))
-                ->text() == QStringLiteral("主操作页面"),
-            "the independent window must keep the initial page selected across sessions");
+            "the unified runtime HMI must return to the initial page before editing");
 
-    requiredChild<QAction>(window, "editingModeAction")->trigger();
+    requiredChild<QToolButton>(window, "exitRuntimeButton")->click();
     QApplication::processEvents();
     require(mode_service.mode() == ApplicationMode::Editing,
-            "editing action must return the runtime mode to editing");
+            "the runtime monitor exit button must return to editing");
     require(!runtime_window->isVisible(),
-            "returning to editing must hide the independent HMI window");
+            "returning to editing must hide the runtime monitor window");
 
     requiredChild<QAction>(window, "addLabelAction")->trigger();
     QApplication::processEvents();
-    require(editor_service.findPage(main_page_id)->controls.size() == 2U,
+    require(editor_service.findPage(main_page_id)->controls.size() == 3U,
             "editing after a runtime session must add the new control to the page");
 
     requiredChild<QAction>(window, "offlineModeAction")->trigger();
     QApplication::processEvents();
-    runtime_window = findHmiRuntimeWindow();
-    require(runtime_window != nullptr && runtime_window->isVisible(),
-            "the HMI window must be reusable for a later runtime session");
-    runtime_hmi = runtime_window->findChild<HmiEditorWidget *>(
-        QStringLiteral("hmiRuntimeHmiView"));
-    require(runtime_hmi != nullptr && runtime_hmi->scene()->items().size() == 3,
-            "a later runtime session must refresh the independent HMI page after an edit");
-    require(requiredChild<RuntimeMonitorWidget>(window, "runtimeMonitorWidget")
-                ->findChild<HmiEditorWidget *>(QStringLiteral("runtimeHmiView"))
-                ->scene()->items().size() == 3,
-            "the diagnostic HMI must keep projecting the edited page");
+    runtime_hmi = requiredChild<HmiEditorWidget>(window, "runtimeHmiView");
+    require(runtime_window->isVisible() && runtime_window->isMaximized()
+                && runtime_hmi->scene()->items().size() == 4,
+            "a later runtime session must reopen and refresh the monitor window");
     runtime_window->close();
     QApplication::processEvents();
     require(mode_service.mode() == ApplicationMode::Editing,
-            "closing the HMI window must request a transition to editing");
+            "closing the runtime monitor window must request editing mode");
     require(!runtime_window->isVisible(),
-            "closing the HMI window must not leave a visible runtime surface");
+            "closing the runtime monitor window must leave no visible runtime surface");
+}
+
+void testApplicationExitClosesRuntimeMonitorWindow()
+{
+    TestProjectStorage storage;
+    ProjectService project_service(storage);
+    HmiEditorService editor_service(project_service);
+    LogicEditorService logic_editor_service(project_service);
+    VirtualRegisterRepository repository;
+    HmiRuntimeService runtime_service(repository);
+    AlarmEditorService alarm_editor_service(project_service);
+    AlarmService alarm_service(project_service, repository);
+    RegisterCommentService register_comment_service(project_service);
+    OfflineSimulationService simulation_service(repository);
+    RuntimeModeService mode_service(project_service, simulation_service);
+    RegisterMonitorService monitor_service(repository);
+    MainWindow window(
+        mode_service,
+        project_service,
+        editor_service,
+        logic_editor_service,
+        runtime_service,
+        alarm_editor_service,
+        alarm_service,
+        register_comment_service,
+        monitor_service);
+    window.show();
+    QApplication::processEvents();
+    require(project_service.saveAs("runtime-window-exit-test.json").succeeded,
+            "application-exit fixture must clear the unsaved-project prompt");
+
+    requiredChild<QAction>(window, "offlineModeAction")->trigger();
+    QApplication::processEvents();
+    RuntimeMonitorWindow *runtime_window = requiredChild<RuntimeMonitorWindow>(
+        window, "runtimeMonitorWindow");
+    require(runtime_window->isVisible(),
+            "application-exit fixture must start with a visible runtime window");
+
+    requiredChild<QAction>(window, "exitAction")->trigger();
+    QApplication::processEvents();
+    require(!window.isVisible() && !runtime_window->isVisible(),
+            "application exit must close both programmer and runtime windows");
 }
 
 void testEdgeTimerPropertyEditingAndParallelMenu()
@@ -1881,6 +1993,15 @@ void testOnlineWorkspaceShowsHmiAndFreeMonitorOnly()
     ProjectService project_service(storage);
     HmiEditorService editor_service(project_service);
     LogicEditorService logic_editor_service(project_service);
+    const std::string page_id = editor_service.ensureDefaultPage().id;
+    const HmiEditorResult button_result = editor_service.addControl(
+        page_id, HmiControlType::Button);
+    HmiControl button = *editor_service.findControl(page_id, button_result.id);
+    button.binding = RegisterAddress{RegisterArea::M, 5};
+    button.buttonOperation = HmiButtonOperation::Toggle;
+    require(editor_service.updateControl(
+                page_id, button_result.id, button).succeeded,
+            "online workspace fixture must configure an interactive HMI button");
     VirtualRegisterRepository virtual_repository;
     VirtualRegisterRepository plc_repository;
     ActiveRegisterRepository active_repository(virtual_repository);
@@ -1916,17 +2037,31 @@ void testOnlineWorkspaceShowsHmiAndFreeMonitorOnly()
     online_action->trigger();
     QApplication::processEvents();
 
-    QWidget *runtime_tab = requiredChild<QWidget>(window, "runtimeMonitorTab");
+    RuntimeMonitorWindow *runtime_window = requiredChild<RuntimeMonitorWindow>(
+        window, "runtimeMonitorWindow");
     QWidget *runtime_hmi = requiredChild<QWidget>(window, "runtimeHmiView");
     QWidget *runtime_logic = requiredChild<QWidget>(window, "runtimeLogicView");
     QWidget *free_monitor = requiredChild<QWidget>(window, "freeMonitorWidget");
     require(mode_service.mode() == ApplicationMode::OnlineRunning,
             "completed PLC initial read must allow online running");
-    require(runtime_tab->isVisible() && runtime_hmi->isVisible()
+    require(runtime_window->isVisible() && runtime_window->isMaximized()
+                && runtime_hmi->isVisible()
                 && free_monitor->isVisible(),
-            "online running must show HMI and free monitor together");
+            "online running must show HMI and free monitor in the maximized window");
     require(!runtime_logic->isVisible(),
             "online running must not show a misleading local ladder runtime trace");
+    auto *runtime_hmi_view = qobject_cast<HmiEditorWidget *>(runtime_hmi);
+    require(runtime_hmi_view != nullptr,
+            "online running must expose the unified interactive HMI view");
+    QTest::mouseClick(
+        runtime_hmi_view->viewport(), Qt::LeftButton, Qt::NoModifier,
+        runtime_hmi_view->mapFromScene(QPointF(
+            button.bounds.x + button.bounds.width / 2.0,
+            button.bounds.y + button.bounds.height / 2.0)));
+    QApplication::processEvents();
+    require(plc_repository.readBit({RegisterArea::M, 5}).succeeded
+                && plc_repository.readBit({RegisterArea::M, 5}).value,
+            "the unified online HMI must write through the active PLC repository");
     QLineEdit *monitor_address = requiredChild<QLineEdit>(window, "addressEdit");
     QPushButton *monitor_add = requiredChild<QPushButton>(window, "addButton");
     QTableWidget *monitor_table = requiredChild<QTableWidget>(window, "monitorTable");
@@ -1950,6 +2085,8 @@ void testOnlineWorkspaceShowsHmiAndFreeMonitorOnly()
 
     require(mode_service.mode() == ApplicationMode::Editing,
             "a PLC timeout must return online running to editing");
+    require(!runtime_window->isVisible(),
+            "a PLC timeout must hide the runtime monitor window");
     require(!monitor_write->isEnabled(),
             "a PLC communication fault must disable free monitor writes");
     require(disconnect_action->isEnabled(),
@@ -2141,13 +2278,14 @@ int main(int argc, char *argv[])
         testLogicContinuousInsertionConsumesFullWire();
         testWindowTitleTracksUnsavedProjectChanges();
         testModeActionsControlEditingAvailability();
-        testIndependentHmiRuntimeWindowLifecycle();
+        testRuntimeMonitorWindowLifecycle();
         testEdgeTimerPropertyEditingAndParallelMenu();
         testPlcConfigurationUsesDialog();
         testRepeatedPlcStatusNotificationsAreCoalesced();
         testFreeMonitorWritesSingleValues();
         testOnlineWorkspaceShowsHmiAndFreeMonitorOnly();
         testMultiPageAndLogicMainWindowIntegration();
+        testApplicationExitClosesRuntimeMonitorWindow();
     }
     catch (const std::exception &error)
     {
diff --git a/app/tests/main_window_tests.pro b/app/tests/main_window_tests.pro
index 638720b..6c3596b 100644
--- a/app/tests/main_window_tests.pro
+++ b/app/tests/main_window_tests.pro
@@ -15,7 +15,7 @@ SOURCES += \
     ../src/ui/register_comment_dialog.cpp \
     ../src/ui/plc_connection_dialog.cpp \
     ../src/ui/free_monitor_widget.cpp \
-    ../src/ui/hmi_runtime_window.cpp \
+    ../src/ui/runtime_monitor_window.cpp \
     ../src/ui/runtime_monitor_widget.cpp \
     ../src/ui/toolbar_icon_factory.cpp \
     ../src/ui/project_workspace_controller.cpp \
@@ -53,7 +53,7 @@ HEADERS += \
     ../src/ui/register_comment_dialog.h \
     ../src/ui/plc_connection_dialog.h \
     ../src/ui/free_monitor_widget.h \
-    ../src/ui/hmi_runtime_window.h \
+    ../src/ui/runtime_monitor_window.h \
     ../src/ui/runtime_monitor_widget.h \
     ../src/ui/toolbar_icon_factory.h \
     ../src/ui/project_workspace_controller.h \
@@ -96,6 +96,6 @@ FORMS += \
     ../src/ui/register_comment_dialog.ui \
     ../src/ui/plc_connection_dialog.ui \
     ../src/ui/free_monitor_widget.ui \
-    ../src/ui/hmi_runtime_window.ui \
+    ../src/ui/runtime_monitor_window.ui \
     ../src/ui/runtime_monitor_widget.ui \
     ../src/ui/logic_instruction_dialog.ui