diff --git a/CMakeLists.txt b/CMakeLists.txt
index 857c8e3..851000f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -139,7 +139,9 @@ else()
     list(APPEND HEADERS src/core/caps_lock_voice_hotkey.h src/core/wayland_text_injector.h)
     add_compile_definitions(PLATFORM_LINUX)
 endif()
-add_executable(${PROJECT_NAME} ${SOURCES} ${HEADERS})
+add_executable(${PROJECT_NAME} ${SOURCES} ${HEADERS}
+    src/ui/resources/styles/styles.qrc
+)
 
 target_include_directories(${PROJECT_NAME} PRIVATE
     ${CMAKE_CURRENT_SOURCE_DIR}/src
@@ -197,15 +199,6 @@ if(WIN32)
     endif()
 endif()
 
-# ============================================================================
-# 资源文件
-# ============================================================================
-# 样式表
-qt_add_resources(${PROJECT_NAME} "styles"
-    PREFIX "/"
-    FILES
-        src/ui/resources/styles/main.qss
-)
 
 # ============================================================================
 # 安装
diff --git a/src/app/application.cpp b/src/app/application.cpp
index be66b07..e9c4acb 100644
--- a/src/app/application.cpp
+++ b/src/app/application.cpp
@@ -3,11 +3,21 @@
 #include "core/sense_voice_engine.h"
 #include "utils/logger.h"
 #include <QFile>
-
-static const char* const kTag = "Application";
+#include <QPalette>
+#include <QColor>
+#include <QStyleFactory>
+#include <QStyle>
+#include <QFont>
+#include <QIcon>
+#include <QPixmap>
+#include <QPainter>
 
 namespace impress {
 
+static QString s_currentTheme; // 跟踪当前主题
+
+static const char* const kTag = "Application";
+
 Application::Application(int& argc, char** argv)
     : QApplication(argc, argv)
 {
@@ -71,4 +81,88 @@ void Application::loadGlobalModel() {
     sttEngine_->loadModelAsync(modelPath, tokensPath, device, numThreads);
 }
 
+void Application::applyTheme(const QString& theme) {
+    s_currentTheme = theme;
+
+    // 1. 先设置风格（必须在 palette 和 stylesheet 之前）
+    qApp->setStyle(QStyleFactory::create("Fusion"));
+
+    // 2. 设置调色板
+    QPalette palette;
+    if (theme == "dark") {
+        palette.setColor(QPalette::Window, QColor(53, 53, 53));
+        palette.setColor(QPalette::WindowText, Qt::white);
+        palette.setColor(QPalette::Base, QColor(25, 25, 25));
+        palette.setColor(QPalette::AlternateBase, QColor(53, 53, 53));
+        palette.setColor(QPalette::ToolTipBase, Qt::white);
+        palette.setColor(QPalette::ToolTipText, Qt::white);
+        palette.setColor(QPalette::Text, Qt::white);
+        palette.setColor(QPalette::Button, QColor(53, 53, 53));
+        palette.setColor(QPalette::ButtonText, Qt::white);
+        palette.setColor(QPalette::BrightText, Qt::cyan);
+        palette.setColor(QPalette::Link, QColor(42, 130, 218));
+        palette.setColor(QPalette::Highlight, QColor(42, 130, 218));
+        palette.setColor(QPalette::HighlightedText, Qt::black);
+        palette.setColor(QPalette::Disabled, QPalette::Text, QColor(127, 127, 127));
+        palette.setColor(QPalette::Disabled, QPalette::ButtonText, QColor(127, 127, 127));
+        palette.setColor(QPalette::Disabled, QPalette::WindowText, QColor(127, 127, 127));
+        palette.setColor(QPalette::Disabled, QPalette::Highlight, QColor(80, 80, 80));
+        palette.setColor(QPalette::Disabled, QPalette::HighlightedText, QColor(127, 127, 127));
+    } else {
+        palette = qApp->style()->standardPalette();
+    }
+    qApp->setPalette(palette);
+
+    // 3. 最后设置样式表（覆盖 palette）
+    const QString qssPath = (theme == "dark") ? ":/styles/main_dark.qss" : ":/styles/main.qss";
+    QFile styleFile(qssPath);
+    if (styleFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        qApp->setStyleSheet(styleFile.readAll());
+        styleFile.close();
+    } else {
+        LOG_ERROR("Theme", QString("无法加载样式表: %1").arg(qssPath));
+    }
+
+    LOG_INFO("Theme", QString("主题已切换: %1").arg(theme));
+}
+
+void Application::applyFontSize(int size) {
+    QFont font = qApp->font();
+    font.setPointSize(size);
+    qApp->setFont(font);
+    LOG_INFO("Theme", QString("字体大小已设置: %1").arg(size));
+}
+
+QIcon Application::createTrayIcon(bool active) {
+    const QColor color = (s_currentTheme == "dark") ? Qt::white : Qt::black;
+    const int size = 16;
+
+    QPixmap pixmap(size, size);
+    pixmap.fill(Qt::transparent);
+    QPainter painter(&pixmap);
+    painter.setRenderHint(QPainter::Antialiasing);
+    painter.setPen(Qt::NoPen);
+    painter.setBrush(color);
+
+    if (active) {
+        // 播放图标（三角形）
+        const int margin = 3;
+        QPolygon triangle;
+        triangle << QPoint(margin, margin)
+                 << QPoint(margin, size - margin)
+                 << QPoint(size - margin, size / 2);
+        painter.drawPolygon(triangle);
+    } else {
+        // 停止图标（正方形）
+        const int margin = 3;
+        painter.drawRect(margin, margin, size - 2 * margin, size - 2 * margin);
+    }
+
+    return QIcon(pixmap);
+}
+
+bool Application::isDarkTheme() {
+    return s_currentTheme == "dark";
+}
+
 } // namespace impress
diff --git a/src/app/application.h b/src/app/application.h
index b30f48e..cda9f44 100644
--- a/src/app/application.h
+++ b/src/app/application.h
@@ -35,6 +35,18 @@ public:
     /** @brief 加载全局模型（在配置加载后手动调用） */
     void loadGlobalModel();
 
+    /** @brief 应用主题（light/dark），可在运行时调用 */
+    static void applyTheme(const QString& theme);
+
+    /** @brief 应用全局字体大小 */
+    static void applyFontSize(int size);
+
+    /** @brief 生成托盘图标（light=黑色，dark=白色） */
+    static QIcon createTrayIcon(bool active);
+
+    /** @brief 当前主题是否为 dark */
+    static bool isDarkTheme();
+
 signals:
     /** @brief 模型加载中（带路径） */
     void modelLoading(const QString& modelPath);
diff --git a/src/main.cpp b/src/main.cpp
index 2f206b0..55f108d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -7,6 +7,7 @@
 #include <QDir>
 #include <QStandardPaths>
 #include <QCommandLineParser>
+#include <QApplication>
 
 int main(int argc, char* argv[])
 {
@@ -66,6 +67,13 @@ int main(int argc, char* argv[])
         configManager->set("stt.model_path", modelPath);
     }
 
+    // 应用主题和字体
+    QString theme = configManager->get("ui.theme").toString();
+    int fontSize = configManager->get("ui.font_size").toInt();
+    impress::Application::applyTheme(theme);
+    if (fontSize > 0) impress::Application::applyFontSize(fontSize);
+    LOG_INFO("Main", QString("主题: %1, 字体: %2").arg(theme).arg(fontSize));
+
     // 配置加载完成后，启动全局模型加载
     app.loadGlobalModel();
 
diff --git a/src/ui/main_window.cpp b/src/ui/main_window.cpp
index ae5fd63..c0ed8fb 100644
--- a/src/ui/main_window.cpp
+++ b/src/ui/main_window.cpp
@@ -5,6 +5,7 @@
 #include "core/voice_input_service.h"
 #include "core/sense_voice_engine.h"
 #include "app/config_manager.h"
+#include "app/application.h"
 #include "utils/logger.h"
 
 #include <QMenuBar>
@@ -37,7 +38,6 @@ MainWindow::MainWindow(ConfigManager* configManager,
     setupMenuBar();
     setupStatusBar(sttEngine);
     setupTrayIcon();
-    loadStyleSheet();
 
     // 初始化语音输入服务（共享全局引擎）
     voiceInputService_ = new VoiceInputService(configManager_, sttEngine, this);
@@ -126,9 +126,9 @@ void MainWindow::setupTrayIcon() {
     trayIcon_ = new QSystemTrayIcon(this);
     trayIcon_->setContextMenu(trayMenu_);
 
-    // 默认状态：停止图标（SP_MediaStop）
-    idleIcon_ = style()->standardIcon(QStyle::SP_MediaStop);
-    activeIcon_ = style()->standardIcon(QStyle::SP_MediaPlay);
+    // 默认状态：根据主题颜色生成图标
+    idleIcon_ = Application::createTrayIcon(false);
+    activeIcon_ = Application::createTrayIcon(true);
 
     trayIcon_->setIcon(idleIcon_);
     trayIcon_->setToolTip("Impress Voice Input - 语音输入就绪");
@@ -236,6 +236,17 @@ void MainWindow::updateModelStatus() {
 void MainWindow::onVoiceInputConfigChanged() {
     if (!voiceInputService_) return;
 
+    // 动态应用主题和字体
+    QString theme = configManager_->get("ui.theme").toString();
+    int fontSize = configManager_->get("ui.font_size").toInt();
+    Application::applyTheme(theme);
+    if (fontSize > 0) Application::applyFontSize(fontSize);
+
+    // 刷新托盘图标颜色
+    idleIcon_ = Application::createTrayIcon(false);
+    activeIcon_ = Application::createTrayIcon(true);
+    updateTrayIcon("语音输入就绪");
+
     // 更新模型状态显示
     updateModelStatus();
 
diff --git a/src/ui/resources/styles/main.qss b/src/ui/resources/styles/main.qss
index fc51575..610af23 100644
--- a/src/ui/resources/styles/main.qss
+++ b/src/ui/resources/styles/main.qss
@@ -1,143 +1,157 @@
-/* Impress Voice Input - 全局样式表 */
+/* Impress Voice Input - 亮色主题样式表 */
 
 /* ========== 全局 ========== */
 * {
     font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
 }
 
-QMainWindow, QWidget {
+QWidget {
+    background-color: #ffffff;
+    color: #1a1a1a;
+}
+
+/* 容器控件必须显式设置背景 */
+QFrame {
+    background-color: #ffffff;
+}
+
+QScrollArea, QScrollArea > QWidget {
     background-color: #ffffff;
-    color: #2c3e50;
 }
 
 /* ========== QTabWidget ========== */
 QTabWidget::pane {
-    border: 1px solid #dcdfe6;
-    border-radius: 4px;
-    background: #fafafa;
+    border: 1px solid #e0e0e0;
+    border-radius: 6px;
+    background: #ffffff;
 }
 
 QTabBar::tab {
-    background: #f0f2f5;
-    border: 1px solid #dcdfe6;
+    background: #f5f5f5;
+    border: 1px solid #e0e0e0;
     border-bottom: none;
-    border-top-left-radius: 4px;
-    border-top-right-radius: 4px;
+    border-top-left-radius: 6px;
+    border-top-right-radius: 6px;
     padding: 10px 24px;
     margin-right: 2px;
     font-size: 14px;
-    color: #606266;
+    color: #666666;
 }
 
 QTabBar::tab:selected {
     background: #ffffff;
-    border-bottom: 2px solid #409eff;
-    color: #409eff;
+    border-bottom: 2px solid #1976d2;
+    color: #1976d2;
     font-weight: bold;
 }
 
 QTabBar::tab:hover {
-    color: #409eff;
+    color: #1976d2;
+    background: #e8eaf6;
 }
 
 /* ========== QPushButton ========== */
 QPushButton {
     background-color: #ffffff;
-    border: 1px solid #dcdfe6;
+    border: 1px solid #d0d0d0;
     border-radius: 4px;
     padding: 6px 16px;
-    color: #606266;
+    color: #333333;
     font-size: 13px;
 }
 
 QPushButton:hover {
-    background-color: #ecf5ff;
-    border-color: #b3d8ff;
-    color: #409eff;
+    background-color: #e3f2fd;
+    border-color: #1976d2;
+    color: #1976d2;
 }
 
 QPushButton:pressed {
-    background-color: #e6f0ff;
+    background-color: #bbdefb;
 }
 
 /* 主要操作按钮 */
 QPushButton[objectName="saveBtn"],
 QPushButton[text="保存配置"] {
-    background-color: #409eff;
+    background-color: #1976d2;
     color: #ffffff;
-    border: 1px solid #409eff;
+    border: 1px solid #1976d2;
 }
 
 QPushButton[objectName="saveBtn"]:hover,
 QPushButton[text="保存配置"]:hover {
-    background-color: #66b1ff;
+    background-color: #1565c0;
 }
 
 /* 危险操作按钮 */
 QPushButton[text="停止"],
 QPushButton[text="停止录音"] {
-    background-color: #f56c6c;
+    background-color: #e53935;
     color: #ffffff;
-    border: 1px solid #f56c6c;
+    border: 1px solid #e53935;
 }
 
 QPushButton[text="停止"]:hover,
 QPushButton[text="停止录音"]:hover {
-    background-color: #f78989;
+    background-color: #c62828;
 }
 
 /* ========== QGroupBox ========== */
 QGroupBox {
     font-weight: bold;
-    border: 1px solid #dcdfe6;
+    border: 1px solid #e0e0e0;
     border-radius: 6px;
     margin-top: 12px;
     padding-top: 16px;
+    color: #1a1a1a;
 }
 
 QGroupBox::title {
     subcontrol-origin: margin;
     subcontrol-position: top left;
     padding: 0 8px;
-    color: #303133;
+    color: #1a1a1a;
 }
 
 /* ========== QLabel ========== */
 QLabel {
-    color: #606266;
+    color: #333333;
+    background: none;
 }
 
 /* ========== QLineEdit ========== */
 QLineEdit {
-    border: 1px solid #dcdfe6;
+    border: 1px solid #d0d0d0;
     border-radius: 4px;
     padding: 5px 10px;
     background: #ffffff;
+    color: #1a1a1a;
 }
 
 QLineEdit:focus {
-    border-color: #409eff;
+    border-color: #1976d2;
 }
 
 QLineEdit[readOnly="true"] {
-    background-color: #f5f7fa;
+    background-color: #f5f5f5;
 }
 
 /* ========== QComboBox ========== */
 QComboBox {
-    border: 1px solid #dcdfe6;
+    border: 1px solid #d0d0d0;
     border-radius: 4px;
     padding: 5px 10px;
     background: #ffffff;
+    color: #1a1a1a;
     min-width: 120px;
 }
 
 QComboBox:hover {
-    border-color: #c0c4cc;
+    border-color: #909090;
 }
 
 QComboBox:focus {
-    border-color: #409eff;
+    border-color: #1976d2;
 }
 
 QComboBox::drop-down {
@@ -145,52 +159,62 @@ QComboBox::drop-down {
     width: 24px;
 }
 
+QComboBox QAbstractItemView {
+    background-color: #ffffff;
+    color: #1a1a1a;
+    selection-background-color: #e3f2fd;
+}
+
 /* ========== QSpinBox / QDoubleSpinBox ========== */
 QSpinBox, QDoubleSpinBox {
-    border: 1px solid #dcdfe6;
+    border: 1px solid #d0d0d0;
     border-radius: 4px;
     padding: 4px 8px;
     background: #ffffff;
+    color: #1a1a1a;
 }
 
 QSpinBox:focus, QDoubleSpinBox:focus {
-    border-color: #409eff;
+    border-color: #1976d2;
 }
 
 /* ========== QProgressBar ========== */
 QProgressBar {
-    border: 1px solid #dcdfe6;
+    border: 1px solid #e0e0e0;
     border-radius: 4px;
     text-align: center;
     height: 20px;
-    background: #f5f7fa;
+    background: #f5f5f5;
+    color: #333333;
 }
 
 QProgressBar::chunk {
     background: qlineargradient(x1:0, y1:0, x2:1, y2:0,
-        stop:0 #409eff, stop:1 #66b1ff);
+        stop:0 #1976d2, stop:1 #42a5f5);
     border-radius: 3px;
 }
 
 /* ========== QTextEdit ========== */
 QTextEdit {
-    border: 1px solid #dcdfe6;
+    border: 1px solid #d0d0d0;
     border-radius: 4px;
     padding: 8px;
     background: #ffffff;
-    selection-background-color: #ecf5ff;
+    color: #1a1a1a;
+    selection-background-color: #e3f2fd;
 }
 
 QTextEdit:focus {
-    border-color: #409eff;
+    border-color: #1976d2;
 }
 
 /* ========== QListWidget ========== */
 QListWidget {
-    border: 1px solid #dcdfe6;
+    border: 1px solid #e0e0e0;
     border-radius: 4px;
     background: #ffffff;
     padding: 4px;
+    color: #1a1a1a;
 }
 
 QListWidget::item {
@@ -199,58 +223,62 @@ QListWidget::item {
 }
 
 QListWidget::item:selected {
-    background-color: #ecf5ff;
-    color: #409eff;
+    background-color: #e3f2fd;
+    color: #1976d2;
 }
 
 QListWidget::item:hover {
-    background-color: #f5f7fa;
+    background-color: #f5f5f5;
 }
 
 /* ========== QCheckBox ========== */
 QCheckBox {
     spacing: 8px;
+    color: #333333;
 }
 
 QCheckBox::indicator {
     width: 16px;
     height: 16px;
-    border: 1px solid #dcdfe6;
+    border: 1px solid #d0d0d0;
     border-radius: 3px;
+    background-color: #ffffff;
 }
 
 QCheckBox::indicator:checked {
-    background-color: #409eff;
-    border-color: #409eff;
+    background-color: #1976d2;
+    border-color: #1976d2;
 }
 
 /* ========== QMenu / QMenuBar ========== */
 QMenuBar {
     background-color: #ffffff;
-    border-bottom: 1px solid #dcdfe6;
+    border-bottom: 1px solid #e0e0e0;
     padding: 2px;
+    color: #333333;
 }
 
 QMenuBar::item:selected {
-    background-color: #ecf5ff;
-    color: #409eff;
+    background-color: #e3f2fd;
+    color: #1976d2;
 }
 
 QMenu {
     background-color: #ffffff;
-    border: 1px solid #dcdfe6;
+    border: 1px solid #e0e0e0;
     border-radius: 4px;
     padding: 4px;
+    color: #333333;
 }
 
 QMenu::item:selected {
-    background-color: #ecf5ff;
-    color: #409eff;
+    background-color: #e3f2fd;
+    color: #1976d2;
 }
 
 QMenu::separator {
     height: 1px;
-    background-color: #ebeef5;
+    background-color: #e0e0e0;
     margin: 4px 0;
 }
 
@@ -260,25 +288,25 @@ QMessageBox {
 }
 
 QMessageBox QLabel {
-    color: #303133;
+    color: #1a1a1a;
 }
 
 /* ========== 滚动条 ========== */
 QScrollBar:vertical {
     border: none;
-    background: #f5f7fa;
+    background: #f5f5f5;
     width: 8px;
     border-radius: 4px;
 }
 
 QScrollBar::handle:vertical {
-    background: #c0c4cc;
+    background: #bdbdbd;
     border-radius: 4px;
     min-height: 30px;
 }
 
 QScrollBar::handle:vertical:hover {
-    background: #909399;
+    background: #9e9e9e;
 }
 
 QScrollBar::add-line:vertical,
diff --git a/src/ui/resources/styles/main_dark.qss b/src/ui/resources/styles/main_dark.qss
new file mode 100644
index 0000000..d633104
--- /dev/null
+++ b/src/ui/resources/styles/main_dark.qss
@@ -0,0 +1,312 @@
+/* Impress Voice Input - 暗色主题样式表 */
+
+/* ========== 全局 ========== */
+* {
+    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
+}
+
+QWidget {
+    background-color: #353535;
+    color: #ffffff;
+}
+
+QFrame {
+    background-color: #353535;
+}
+
+QScrollArea, QScrollArea > QWidget {
+    background-color: #2a2a2a;
+}
+
+/* ========== QTabWidget ========== */
+QTabWidget::pane {
+    border: 1px solid #555555;
+    border-radius: 4px;
+    background: #2a2a2a;
+}
+
+QTabBar::tab {
+    background: #3a3a3a;
+    border: 1px solid #555555;
+    border-bottom: none;
+    border-top-left-radius: 4px;
+    border-top-right-radius: 4px;
+    padding: 10px 24px;
+    margin-right: 2px;
+    font-size: 14px;
+    color: #cccccc;
+}
+
+QTabBar::tab:selected {
+    background: #2a2a2a;
+    border-bottom: 2px solid #4286f4;
+    color: #4286f4;
+    font-weight: bold;
+}
+
+QTabBar::tab:hover {
+    color: #4286f4;
+}
+
+/* ========== QPushButton ========== */
+QPushButton {
+    background-color: #353535;
+    border: 1px solid #555555;
+    border-radius: 4px;
+    padding: 6px 16px;
+    color: #cccccc;
+    font-size: 13px;
+}
+
+QPushButton:hover {
+    background-color: #4286f4;
+    border-color: #4286f4;
+    color: #ffffff;
+}
+
+QPushButton:pressed {
+    background-color: #3a6fd8;
+}
+
+/* 主要操作按钮 */
+QPushButton[objectName="saveBtn"],
+QPushButton[text="保存配置"] {
+    background-color: #4286f4;
+    color: #ffffff;
+    border: 1px solid #4286f4;
+}
+
+QPushButton[objectName="saveBtn"]:hover,
+QPushButton[text="保存配置"]:hover {
+    background-color: #5a9aff;
+}
+
+/* 危险操作按钮 */
+QPushButton[text="停止"],
+QPushButton[text="停止录音"] {
+    background-color: #e74c3c;
+    color: #ffffff;
+    border: 1px solid #e74c3c;
+}
+
+QPushButton[text="停止"]:hover,
+QPushButton[text="停止录音"]:hover {
+    background-color: #f05e50;
+}
+
+/* ========== QGroupBox ========== */
+QGroupBox {
+    font-weight: bold;
+    border: 1px solid #555555;
+    border-radius: 6px;
+    margin-top: 12px;
+    padding-top: 16px;
+    color: #ffffff;
+}
+
+QGroupBox::title {
+    subcontrol-origin: margin;
+    subcontrol-position: top left;
+    padding: 0 8px;
+    color: #ffffff;
+}
+
+/* ========== QLabel ========== */
+QLabel {
+    color: #cccccc;
+}
+
+/* ========== QLineEdit ========== */
+QLineEdit {
+    border: 1px solid #555555;
+    border-radius: 4px;
+    padding: 5px 10px;
+    background: #1a1a1a;
+    color: #ffffff;
+}
+
+QLineEdit:focus {
+    border-color: #4286f4;
+}
+
+QLineEdit[readOnly="true"] {
+    background-color: #2a2a2a;
+}
+
+/* ========== QComboBox ========== */
+QComboBox {
+    border: 1px solid #555555;
+    border-radius: 4px;
+    padding: 5px 10px;
+    background: #1a1a1a;
+    color: #ffffff;
+    min-width: 120px;
+}
+
+QComboBox:hover {
+    border-color: #888888;
+}
+
+QComboBox:focus {
+    border-color: #4286f4;
+}
+
+QComboBox::drop-down {
+    border: none;
+    width: 24px;
+}
+
+QComboBox QAbstractItemView {
+    background-color: #1a1a1a;
+    color: #ffffff;
+    selection-background-color: #4286f4;
+}
+
+/* ========== QSpinBox / QDoubleSpinBox ========== */
+QSpinBox, QDoubleSpinBox {
+    border: 1px solid #555555;
+    border-radius: 4px;
+    padding: 4px 8px;
+    background: #1a1a1a;
+    color: #ffffff;
+}
+
+QSpinBox:focus, QDoubleSpinBox:focus {
+    border-color: #4286f4;
+}
+
+/* ========== QProgressBar ========== */
+QProgressBar {
+    border: 1px solid #555555;
+    border-radius: 4px;
+    text-align: center;
+    height: 20px;
+    background: #2a2a2a;
+    color: #ffffff;
+}
+
+QProgressBar::chunk {
+    background: qlineargradient(x1:0, y1:0, x2:1, y2:0,
+        stop:0 #4286f4, stop:1 #5a9aff);
+    border-radius: 3px;
+}
+
+/* ========== QTextEdit ========== */
+QTextEdit {
+    border: 1px solid #555555;
+    border-radius: 4px;
+    padding: 8px;
+    background: #1a1a1a;
+    color: #ffffff;
+    selection-background-color: #4286f4;
+}
+
+QTextEdit:focus {
+    border-color: #4286f4;
+}
+
+/* ========== QListWidget ========== */
+QListWidget {
+    border: 1px solid #555555;
+    border-radius: 4px;
+    background: #1a1a1a;
+    padding: 4px;
+    color: #ffffff;
+}
+
+QListWidget::item {
+    padding: 8px;
+    border-radius: 4px;
+}
+
+QListWidget::item:selected {
+    background-color: #4286f4;
+    color: #ffffff;
+}
+
+QListWidget::item:hover {
+    background-color: #3a3a3a;
+}
+
+/* ========== QCheckBox ========== */
+QCheckBox {
+    spacing: 8px;
+    color: #cccccc;
+}
+
+QCheckBox::indicator {
+    width: 16px;
+    height: 16px;
+    border: 1px solid #555555;
+    border-radius: 3px;
+    background-color: #1a1a1a;
+}
+
+QCheckBox::indicator:checked {
+    background-color: #4286f4;
+    border-color: #4286f4;
+}
+
+/* ========== QMenu / QMenuBar ========== */
+QMenuBar {
+    background-color: #353535;
+    border-bottom: 1px solid #555555;
+    padding: 2px;
+    color: #cccccc;
+}
+
+QMenuBar::item:selected {
+    background-color: #4286f4;
+    color: #ffffff;
+}
+
+QMenu {
+    background-color: #353535;
+    border: 1px solid #555555;
+    border-radius: 4px;
+    padding: 4px;
+    color: #cccccc;
+}
+
+QMenu::item:selected {
+    background-color: #4286f4;
+    color: #ffffff;
+}
+
+QMenu::separator {
+    height: 1px;
+    background-color: #555555;
+    margin: 4px 0;
+}
+
+/* ========== QMessageBox ========== */
+QMessageBox {
+    background-color: #353535;
+}
+
+QMessageBox QLabel {
+    color: #ffffff;
+}
+
+/* ========== 滚动条 ========== */
+QScrollBar:vertical {
+    border: none;
+    background: #2a2a2a;
+    width: 8px;
+    border-radius: 4px;
+}
+
+QScrollBar::handle:vertical {
+    background: #666666;
+    border-radius: 4px;
+    min-height: 30px;
+}
+
+QScrollBar::handle:vertical:hover {
+    background: #888888;
+}
+
+QScrollBar::add-line:vertical,
+QScrollBar::sub-line:vertical {
+    height: 0;
+}
diff --git a/src/ui/resources/styles/styles.qrc b/src/ui/resources/styles/styles.qrc
new file mode 100644
index 0000000..3523715
--- /dev/null
+++ b/src/ui/resources/styles/styles.qrc
@@ -0,0 +1,6 @@
+<RCC>
+    <qresource prefix="/styles">
+        <file>main.qss</file>
+        <file>main_dark.qss</file>
+    </qresource>
+</RCC>