diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3128aa5..7e6209d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,9 @@ set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTORCC ON)
 set(CMAKE_AUTOUIC ON)
 
-set(CMAKE_PREFIX_PATH "E:/QT6.6.3/6.6.3/mingw_64")
+if (WIN32 AND NOT DEFINED CMAKE_PREFIX_PATH)
+    set(CMAKE_PREFIX_PATH "E:/QT6.6.3/6.6.3/mingw_64")
+endif ()
 
 add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")
 add_compile_options("$<$<CXX_COMPILER_ID:GNU>:-finput-charset=UTF-8>")
diff --git a/Res/Sound/action/action_challenge.wav b/Res/Sound/action/action_challenge.wav
new file mode 100644
index 0000000..1f3fddd
Binary files /dev/null and b/Res/Sound/action/action_challenge.wav differ
diff --git a/Res/Sound/action/action_harmony.wav b/Res/Sound/action/action_harmony.wav
new file mode 100644
index 0000000..7ceca4a
Binary files /dev/null and b/Res/Sound/action/action_harmony.wav differ
diff --git a/Res/Sound/action/action_skill.wav b/Res/Sound/action/action_skill.wav
new file mode 100644
index 0000000..f6d7dc2
Binary files /dev/null and b/Res/Sound/action/action_skill.wav differ
diff --git a/Res/Sound/action/effect_complete.wav b/Res/Sound/action/effect_complete.wav
new file mode 100644
index 0000000..c205b15
Binary files /dev/null and b/Res/Sound/action/effect_complete.wav differ
diff --git a/Res/Sound/action/effect_trigger.wav b/Res/Sound/action/effect_trigger.wav
new file mode 100644
index 0000000..6bfeac2
Binary files /dev/null and b/Res/Sound/action/effect_trigger.wav differ
diff --git a/Res/Sound/card/card_deal.wav b/Res/Sound/card/card_deal.wav
new file mode 100644
index 0000000..c89ddb8
Binary files /dev/null and b/Res/Sound/card/card_deal.wav differ
diff --git a/Res/Sound/card/card_flip.wav b/Res/Sound/card/card_flip.wav
new file mode 100644
index 0000000..fc2496b
Binary files /dev/null and b/Res/Sound/card/card_flip.wav differ
diff --git a/Res/Sound/card/card_hover.wav b/Res/Sound/card/card_hover.wav
new file mode 100644
index 0000000..326197b
Binary files /dev/null and b/Res/Sound/card/card_hover.wav differ
diff --git a/Res/Sound/card/card_play.wav b/Res/Sound/card/card_play.wav
new file mode 100644
index 0000000..c43c422
Binary files /dev/null and b/Res/Sound/card/card_play.wav differ
diff --git a/Res/Sound/card/card_select.wav b/Res/Sound/card/card_select.wav
new file mode 100644
index 0000000..33b3cd6
Binary files /dev/null and b/Res/Sound/card/card_select.wav differ
diff --git a/Res/Sound/settle/settle_alldead.wav b/Res/Sound/settle/settle_alldead.wav
new file mode 100644
index 0000000..b2fbfc2
Binary files /dev/null and b/Res/Sound/settle/settle_alldead.wav differ
diff --git a/Res/Sound/settle/settle_defeat.wav b/Res/Sound/settle/settle_defeat.wav
new file mode 100644
index 0000000..6271773
Binary files /dev/null and b/Res/Sound/settle/settle_defeat.wav differ
diff --git a/Res/Sound/settle/settle_harmony_fail.wav b/Res/Sound/settle/settle_harmony_fail.wav
new file mode 100644
index 0000000..137008c
Binary files /dev/null and b/Res/Sound/settle/settle_harmony_fail.wav differ
diff --git a/Res/Sound/settle/settle_harmony_ok.wav b/Res/Sound/settle/settle_harmony_ok.wav
new file mode 100644
index 0000000..a0882bd
Binary files /dev/null and b/Res/Sound/settle/settle_harmony_ok.wav differ
diff --git a/Res/Sound/settle/settle_prison.wav b/Res/Sound/settle/settle_prison.wav
new file mode 100644
index 0000000..5a3b487
Binary files /dev/null and b/Res/Sound/settle/settle_prison.wav differ
diff --git a/Res/Sound/settle/settle_victory.wav b/Res/Sound/settle/settle_victory.wav
new file mode 100644
index 0000000..35ba20e
Binary files /dev/null and b/Res/Sound/settle/settle_victory.wav differ
diff --git a/Res/Sound/turn/turn_other.wav b/Res/Sound/turn/turn_other.wav
new file mode 100644
index 0000000..8bb7c41
Binary files /dev/null and b/Res/Sound/turn/turn_other.wav differ
diff --git a/Res/Sound/turn/turn_start.wav b/Res/Sound/turn/turn_start.wav
new file mode 100644
index 0000000..125b06a
Binary files /dev/null and b/Res/Sound/turn/turn_start.wav differ
diff --git a/Res/Sound/ui/chat_message.wav b/Res/Sound/ui/chat_message.wav
new file mode 100644
index 0000000..a47a896
Binary files /dev/null and b/Res/Sound/ui/chat_message.wav differ
diff --git a/Res/Sound/ui/game_start.wav b/Res/Sound/ui/game_start.wav
new file mode 100644
index 0000000..d5304fa
Binary files /dev/null and b/Res/Sound/ui/game_start.wav differ
diff --git a/Res/Sound/ui/mic_toggle.wav b/Res/Sound/ui/mic_toggle.wav
new file mode 100644
index 0000000..b2b3125
Binary files /dev/null and b/Res/Sound/ui/mic_toggle.wav differ
diff --git a/Res/Sound/ui/player_exit.wav b/Res/Sound/ui/player_exit.wav
new file mode 100644
index 0000000..fbc0560
Binary files /dev/null and b/Res/Sound/ui/player_exit.wav differ
diff --git a/Res/Sound/ui/ui_click.wav b/Res/Sound/ui/ui_click.wav
new file mode 100644
index 0000000..2504a62
Binary files /dev/null and b/Res/Sound/ui/ui_click.wav differ
diff --git a/main.cpp b/main.cpp
index 5de4c34..c415f99 100644
--- a/main.cpp
+++ b/main.cpp
@@ -4,6 +4,8 @@
 #include "ElaTheme.h"
 #include "MainWindow.h"
 #include "CardData.h"
+#include "SettingsManager.h"
+#include "SoundManager.h"
 
 int main(int argc, char* argv[])
 {
@@ -11,6 +13,9 @@ int main(int argc, char* argv[])
     eApp->init();
     eTheme->setThemeMode(ElaThemeType::Dark);
 
+    SettingsManager::instance().load();
+    SoundManager::instance().init();
+
     CardDatabase::instance().loadFromFile(
         QCoreApplication::applicationDirPath() + "/config/cards.json");
 
diff --git a/src/model/SettingsManager.cpp b/src/model/SettingsManager.cpp
new file mode 100644
index 0000000..161512e
--- /dev/null
+++ b/src/model/SettingsManager.cpp
@@ -0,0 +1,96 @@
+#include "SettingsManager.h"
+#include <QFile>
+#include <QDir>
+#include <QJsonDocument>
+#include <QCoreApplication>
+
+SettingsManager& SettingsManager::instance() {
+    static SettingsManager mgr;
+    return mgr;
+}
+
+SettingsManager::SettingsManager(QObject* parent) : QObject(parent) {}
+
+QString SettingsManager::filePath() const {
+    return QCoreApplication::applicationDirPath() + "/config/settings.json";
+}
+
+void SettingsManager::load() {
+    QFile f(filePath());
+    if (!f.exists() || !f.open(QIODevice::ReadOnly)) {
+        _data = defaultSettings();
+        save();
+        return;
+    }
+    auto doc = QJsonDocument::fromJson(f.readAll());
+    f.close();
+    if (doc.isObject()) {
+        _data = doc.object();
+    } else {
+        _data = defaultSettings();
+        save();
+    }
+}
+
+void SettingsManager::save() {
+    QDir().mkpath(QFileInfo(filePath()).absolutePath());
+    QFile f(filePath());
+    if (f.open(QIODevice::WriteOnly)) {
+        f.write(QJsonDocument(_data).toJson(QJsonDocument::Indented));
+        f.close();
+    }
+}
+
+void SettingsManager::resetToDefaults() {
+    _data = defaultSettings();
+    emit settingsChanged();
+}
+
+QJsonObject SettingsManager::defaultSettings() const {
+    return {
+        {"general", QJsonObject{
+            {"nickname", "Player"},
+        }},
+        {"network", QJsonObject{
+            {"server_address", "ws://127.0.0.1:8080/ws"},
+        }},
+        {"voice", QJsonObject{
+            {"mode", "ptt"},
+            {"ptt_key", "V"},
+            {"input_device", ""},
+            {"output_device", ""},
+        }},
+        {"audio", QJsonObject{
+            {"master_volume", 80},
+            {"voice_volume", 100},
+        }},
+        {"display", QJsonObject{
+            {"animations_enabled", true},
+            {"animation_speed", 1.0},
+            {"theme", "dark"},
+        }},
+    };
+}
+
+QString SettingsManager::getString(const QString& sec, const QString& key, const QString& def) const {
+    return _data[sec].toObject()[key].toString(def);
+}
+
+int SettingsManager::getInt(const QString& sec, const QString& key, int def) const {
+    return _data[sec].toObject()[key].toInt(def);
+}
+
+bool SettingsManager::getBool(const QString& sec, const QString& key, bool def) const {
+    auto v = _data[sec].toObject()[key];
+    return v.isUndefined() ? def : v.toBool(def);
+}
+
+double SettingsManager::getDouble(const QString& sec, const QString& key, double def) const {
+    return _data[sec].toObject()[key].toDouble(def);
+}
+
+void SettingsManager::set(const QString& sec, const QString& key, const QJsonValue& val) {
+    auto obj = _data[sec].toObject();
+    obj[key] = val;
+    _data[sec] = obj;
+}
diff --git a/src/model/SettingsManager.h b/src/model/SettingsManager.h
new file mode 100644
index 0000000..bb72f78
--- /dev/null
+++ b/src/model/SettingsManager.h
@@ -0,0 +1,36 @@
+#ifndef SETTINGSMANAGER_H
+#define SETTINGSMANAGER_H
+
+#include <QObject>
+#include <QJsonObject>
+#include <QString>
+
+class SettingsManager : public QObject {
+    Q_OBJECT
+public:
+    static SettingsManager& instance();
+
+    void load();
+    void save();
+    void resetToDefaults();
+
+    QString getString(const QString& section, const QString& key, const QString& def = {}) const;
+    int getInt(const QString& section, const QString& key, int def = 0) const;
+    bool getBool(const QString& section, const QString& key, bool def = false) const;
+    double getDouble(const QString& section, const QString& key, double def = 0) const;
+
+    void set(const QString& section, const QString& key, const QJsonValue& val);
+
+    QString filePath() const;
+
+signals:
+    void settingsChanged();
+
+private:
+    explicit SettingsManager(QObject* parent = nullptr);
+    QJsonObject defaultSettings() const;
+
+    QJsonObject _data;
+};
+
+#endif
diff --git a/src/model/SoundManager.cpp b/src/model/SoundManager.cpp
new file mode 100644
index 0000000..12bddfc
--- /dev/null
+++ b/src/model/SoundManager.cpp
@@ -0,0 +1,83 @@
+#include "SoundManager.h"
+#include "SettingsManager.h"
+#include <QCoreApplication>
+#include <QFileInfo>
+#include <QDir>
+#include <QDirIterator>
+#include <QUrl>
+#include <QDebug>
+
+SoundManager& SoundManager::instance() {
+    static SoundManager mgr;
+    return mgr;
+}
+
+SoundManager::SoundManager(QObject* parent) : QObject(parent) {}
+
+void SoundManager::init() {
+    _volume = SettingsManager::instance().getInt("audio", "master_volume", 80) / 100.0;
+
+    QStringList searchPaths = {
+        QCoreApplication::applicationDirPath() + "/Res/Sound/",
+        QCoreApplication::applicationDirPath() + "/../Res/Sound/",
+        QDir::currentPath() + "/Res/Sound/",
+    };
+
+    _basePath.clear();
+    for (const auto& p : searchPaths) {
+        if (QDir(p).exists()) {
+            _basePath = QDir(p).absolutePath() + "/";
+            break;
+        }
+    }
+
+    if (_basePath.isEmpty()) {
+        qWarning() << "[SoundManager] Sound directory not found. Searched:" << searchPaths;
+        return;
+    }
+    qDebug() << "[SoundManager] Sound directory:" << _basePath;
+
+    QDirIterator it(_basePath, {"*.wav"}, QDir::Files, QDirIterator::Subdirectories);
+    int loaded = 0;
+    while (it.hasNext()) {
+        it.next();
+        QString name = it.fileInfo().baseName();
+        auto* sfx = new QSoundEffect(this);
+        sfx->setSource(QUrl::fromLocalFile(it.filePath()));
+        sfx->setVolume(_volume);
+        _sounds[name] = sfx;
+        loaded++;
+    }
+    qDebug() << "[SoundManager] Loaded" << loaded << "sounds";
+
+    connect(&SettingsManager::instance(), &SettingsManager::settingsChanged, this, [this]() {
+        _volume = SettingsManager::instance().getInt("audio", "master_volume", 80) / 100.0;
+    });
+}
+
+bool SoundManager::preload(const QString& name) {
+    QString path = _basePath + name + ".wav";
+    if (!QFileInfo::exists(path)) {
+        qDebug() << "[SoundManager] Missing:" << name << ".wav";
+        return false;
+    }
+    auto* sfx = new QSoundEffect(this);
+    sfx->setSource(QUrl::fromLocalFile(path));
+    sfx->setVolume(_volume);
+    _sounds[name] = sfx;
+    return true;
+}
+
+void SoundManager::play(const QString& name) {
+    auto it = _sounds.find(name);
+    if (it == _sounds.end()) return;
+    auto* sfx = *it;
+    sfx->setVolume(_volume);
+    if (sfx->isLoaded()) {
+        sfx->play();
+    }
+}
+
+void SoundManager::setMasterVolume(qreal v) {
+    _volume = v;
+}
diff --git a/src/model/SoundManager.h b/src/model/SoundManager.h
new file mode 100644
index 0000000..4a5004e
--- /dev/null
+++ b/src/model/SoundManager.h
@@ -0,0 +1,27 @@
+#ifndef SOUNDMANAGER_H
+#define SOUNDMANAGER_H
+
+#include <QObject>
+#include <QMap>
+#include <QSoundEffect>
+
+class SoundManager : public QObject {
+    Q_OBJECT
+public:
+    static SoundManager& instance();
+
+    void init();
+    void play(const QString& name);
+    void setMasterVolume(qreal v);
+    qreal masterVolume() const { return _volume; }
+
+private:
+    explicit SoundManager(QObject* parent = nullptr);
+    bool preload(const QString& name);
+
+    QMap<QString, QSoundEffect*> _sounds;
+    qreal _volume = 0.8;
+    QString _basePath;
+};
+
+#endif
diff --git a/src/network/NetworkManager.cpp b/src/network/NetworkManager.cpp
index 9f16c97..2b521b2 100644
--- a/src/network/NetworkManager.cpp
+++ b/src/network/NetworkManager.cpp
@@ -165,5 +165,11 @@ void NetworkManager::handleServerMessage(const QJsonObject& msg) {
         emit roomListReceived(payload["rooms"].toArray());
     } else if (type == "settlement_result") {
         emit settlementResult(payload);
+    } else if (type == "game_log") {
+        emit gameLogReceived(payload["text"].toString());
+    } else if (type == "login_result") {
+        emit loginResult(payload);
+    } else if (type == "register_result") {
+        emit registerResult(payload);
     }
 }
diff --git a/src/network/NetworkManager.h b/src/network/NetworkManager.h
index dec4a7c..fa67fc0 100644
--- a/src/network/NetworkManager.h
+++ b/src/network/NetworkManager.h
@@ -58,6 +58,9 @@ signals:
     void roomListReceived(const QJsonArray& rooms);
     void settlementResult(const QJsonObject& data);
     void binaryFrameReceived(const QByteArray& data);
+    void gameLogReceived(const QString& text);
+    void loginResult(const QJsonObject& result);
+    void registerResult(const QJsonObject& result);
 
 private slots:
     void onConnected();
diff --git a/src/ui/CardWidget.cpp b/src/ui/CardWidget.cpp
index 36237cb..9d18e4a 100644
--- a/src/ui/CardWidget.cpp
+++ b/src/ui/CardWidget.cpp
@@ -120,7 +120,7 @@ void CardWidget::paintEvent(QPaintEvent*) {
             p.setBrush(QColor(0,0,0,140));
             QRectF badge(cr.left()+3, cr.top()+3, 22, 18);
             p.drawRoundedRect(badge, 3, 3);
-            p.setFont(QFont("Microsoft YaHei", 9, QFont::Bold));
+            p.setFont(QFont(QString(), 9, QFont::Bold));
             p.setPen(def->mp >= 0 ? QColor("#ffd700") : QColor("#ff4444"));
             p.drawText(badge, Qt::AlignCenter, QString::number(def->mp));
         }
diff --git a/src/ui/ChoiceOverlay.cpp b/src/ui/ChoiceOverlay.cpp
index d7afa02..b2b7149 100644
--- a/src/ui/ChoiceOverlay.cpp
+++ b/src/ui/ChoiceOverlay.cpp
@@ -51,10 +51,10 @@ void ChoiceOverlay::showChoice(const QString& choiceType, const QJsonObject& dat
     else if (choiceType == "select_option")
         buildSelectOption(data);
 
-    _panel->setMaximumHeight(height() - 40);
-    _panel->adjustSize();
+    int panelH = qBound(280, height() * 2 / 3, 520);
+    _panel->setFixedSize(660, panelH);
     show(); raise();
-    _panel->move((width() - _panel->width()) / 2, qMax(20, (height() - _panel->height()) / 2));
+    _panel->move((width() - 660) / 2, qMax(20, (height() - panelH) / 2));
 }
 
 void ChoiceOverlay::hideChoice() { clearContent(); hide(); }
diff --git a/src/ui/GameWidget.cpp b/src/ui/GameWidget.cpp
index bc5d8bb..60fc6d0 100644
--- a/src/ui/GameWidget.cpp
+++ b/src/ui/GameWidget.cpp
@@ -22,8 +22,14 @@
 #include <QTimer>
 #include <QEvent>
 #include <QKeyEvent>
+#include <QMouseEvent>
+#include <QFileDialog>
+#include <QTextStream>
+#include <QMessageBox>
 #include <QPropertyAnimation>
-#include "VoiceSettingsDialog.h"
+#include "SettingsDialog.h"
+#include "SoundManager.h"
+#include "SpectrumWidget.h"
 #include <QGraphicsPixmapItem>
 #include <QGraphicsTextItem>
 #include <QOpenGLWidget>
@@ -41,6 +47,7 @@ GameWidget::GameWidget(QWidget* parent) : QWidget(parent)
 {
     setStyleSheet(QStringLiteral("background:%1;").arg(BG_MAIN.name()));
     setFocusPolicy(Qt::StrongFocus);
+    setMouseTracking(true);
     initScene();
     initFloatingUI();
 
@@ -58,6 +65,9 @@ GameWidget::GameWidget(QWidget* parent) : QWidget(parent)
     connect(&net, &NetworkManager::errorNotify, this, [this](const QJsonObject& e) {
         ElaMessageBar::error(ElaMessageBarType::TopRight, QStringLiteral("错误"), e["message"].toString(), 3000, this);
     });
+    connect(&net, &NetworkManager::gameLogReceived, this, [this](const QString& text) {
+        addLog(text);
+    });
     connect(&net, &NetworkManager::chatMessage, this, [this](const QJsonObject& m) {
         auto nick = m["nickname"].toString();
         auto text = m["text"].toString();
@@ -65,6 +75,7 @@ GameWidget::GameWidget(QWidget* parent) : QWidget(parent)
         item->setForeground(QColor("#e0e0e0"));
         _chatList->addItem(item);
         _chatList->scrollToBottom();
+        SoundManager::instance().play("chat_message");
     });
 
     auto& voice = VoiceManager::instance();
@@ -100,7 +111,7 @@ void GameWidget::initScene() {
     if (!corpsePix.isNull())
         _corpseItem = _scene->addPixmap(corpsePix.scaled(140, 100, Qt::KeepAspectRatio, Qt::SmoothTransformation));
 
-    _harmonyLabel = _scene->addText("", QFont("Consolas", 12, QFont::Bold));
+    _harmonyLabel = _scene->addText("", QFont("monospace", 12, QFont::Bold));
     _harmonyLabel->setDefaultTextColor(TEXT_SEC);
 }
 
@@ -113,7 +124,7 @@ void GameWidget::initFloatingUI() {
     _turnLabel = new QLabel(QStringLiteral("等待游戏开始"), _topBar);
     _turnLabel->setStyleSheet(QStringLiteral("color:%1;font-size:14px;font-weight:bold;").arg(ACCENT.name()));
     _targetLabel = new QLabel(_topBar);
-    _targetLabel->setStyleSheet(QStringLiteral("color:%1;font-size:16px;font-weight:bold;font-family:Consolas;").arg(QColor("#d4c5a3").name()));
+    _targetLabel->setStyleSheet(QStringLiteral("color:%1;font-size:16px;font-weight:bold;font-family:monospace;").arg(QColor("#d4c5a3").name()));
     _targetLabel->setAlignment(Qt::AlignCenter);
     tbLay->addWidget(_turnLabel);
     tbLay->addStretch();
@@ -123,14 +134,28 @@ void GameWidget::initFloatingUI() {
     voiceStatus->setStyleSheet("color:#8a8f9d;font-size:16px;background:transparent;");
     voiceStatus->setToolTip(QStringLiteral("V键: 按住说话 / 按下切换"));
     tbLay->addWidget(voiceStatus);
+    auto* spectrum = new SpectrumWidget(12, _topBar);
+    tbLay->addWidget(spectrum);
+    connect(&VoiceManager::instance(), &VoiceManager::spectrumData, spectrum, &SpectrumWidget::updateLevels);
     auto* voiceSettingsBtn = new ElaPushButton(QStringLiteral("⚙"), _topBar);
     voiceSettingsBtn->setFixedSize(30, 30);
     voiceSettingsBtn->setToolTip(QStringLiteral("语音设置"));
     connect(voiceSettingsBtn, &ElaPushButton::clicked, this, [this]() {
-        VoiceSettingsDialog dlg(this);
+        SettingsDialog dlg(this);
         dlg.exec();
     });
     tbLay->addWidget(voiceSettingsBtn);
+    auto* exitBtn = new ElaPushButton(QStringLiteral("退出"), _topBar);
+    exitBtn->setFixedSize(50, 28);
+    connect(exitBtn, &ElaPushButton::clicked, this, [this]() {
+        auto r = QMessageBox::question(this, QStringLiteral("退出对局"),
+            QStringLiteral("确定要退出当前对局吗？"), QMessageBox::Yes | QMessageBox::No);
+        if (r == QMessageBox::Yes) {
+            NetworkManager::instance().leaveRoom();
+            emit gameFinished();
+        }
+    });
+    tbLay->addWidget(exitBtn);
 
     connect(&VoiceManager::instance(), &VoiceManager::mutedChanged, voiceStatus, [voiceStatus](bool muted) {
         voiceStatus->setText(muted ? QStringLiteral("🔇") : QStringLiteral("🎤"));
@@ -168,10 +193,26 @@ void GameWidget::initFloatingUI() {
     logLay->setSpacing(4);
     auto* logT = new QLabel(QStringLiteral("游戏日志"), _logPanel);
     logT->setStyleSheet(QStringLiteral("color:%1;font-size:12px;font-weight:bold;").arg(TEXT_SEC.name()));
-    logLay->addWidget(logT);
+    auto* logExportBtn = new ElaPushButton(QStringLiteral("导出"), _logPanel);
+    logExportBtn->setFixedSize(44, 22);
+    connect(logExportBtn, &ElaPushButton::clicked, this, [this]() {
+        QString path = QFileDialog::getSaveFileName(this, QStringLiteral("导出游戏日志"), QStringLiteral("game_log.txt"), QStringLiteral("文本文件 (*.txt)"));
+        if (path.isEmpty()) return;
+        QFile f(path);
+        if (f.open(QIODevice::WriteOnly | QIODevice::Text)) {
+            QTextStream ts(&f);
+            for (int i = 0; i < _logList->count(); ++i) ts << _logList->item(i)->text() << "\n";
+            f.close();
+        }
+    });
+    auto* logHeader = new QHBoxLayout();
+    logHeader->addWidget(logT);
+    logHeader->addStretch();
+    logHeader->addWidget(logExportBtn);
+    logLay->addLayout(logHeader);
     _logList = new QListWidget(_logPanel);
     _logList->setStyleSheet(
-        QStringLiteral("QListWidget{background:transparent;border:none;color:%1;font-size:12px;font-family:'Consolas';}"
+        QStringLiteral("QListWidget{background:transparent;border:none;color:%1;font-size:12px;font-family:monospace;}"
                        "QListWidget::item{padding:2px 0;}").arg(TEXT_SEC.name()));
     logLay->addWidget(_logList, 1);
 
@@ -294,9 +335,9 @@ void GameWidget::layoutFloatingUI() {
 
     _topBar->setGeometry(0, 0, w, 44);
     _topBar->raise();
-    _actionBar->setGeometry(chatW, h - 54, w - chatW - 220, 50);
+    _actionBar->setGeometry(chatW, h - 54, w - chatW - _logWidth, 50);
     _actionBar->raise();
-    _logPanel->setGeometry(w - 220, 44, 220, h - 44);
+    _logPanel->setGeometry(w - _logWidth, 44, _logWidth, h - 44);
     _logPanel->raise();
     _choiceOverlay->setGeometry(0, 0, w, h);
     _settlementOverlay->setGeometry(0, 0, w, h);
@@ -318,6 +359,7 @@ bool GameWidget::eventFilter(QObject* obj, QEvent* event) {
 void GameWidget::onGameStart(const QJsonObject& config) {
     resetGame();
     _chatList->clear();
+    SoundManager::instance().play("game_start");
     _localPlayerId = config["your_player_id"].toString();
     _harmonyTarget = config["harmony_target"].toInt();
     _targetLabel->setText(QStringLiteral("目标值: %1").arg(_harmonyTarget));
@@ -399,6 +441,7 @@ void GameWidget::onSnapshot(const QJsonObject& snap) {
     if (turnPhase == "select_card") {
         _turnLabel->setText(QStringLiteral("你的回合 — 选择手牌"));
         _phase = Phase::SelectCard;
+        SoundManager::instance().play("turn_start");
         for (auto* c : _handCards) {
             const CardDef* def = CardDatabase::instance().getCardDef(c->typeId());
             c->setCardEnabled(!(def && def->unusable));
@@ -546,6 +589,7 @@ void GameWidget::updateHarmonyZone(const QJsonArray& cards) {
 
 void GameWidget::onSceneCardClicked(const QString& uid) {
     if (_phase != Phase::SelectCard) return;
+    SoundManager::instance().play("card_select");
     bool wasSelected = false;
     for (auto* c : _handCards) {
         if (c->uid() == uid) {
@@ -579,11 +623,10 @@ void GameWidget::onSkill() {
     for (auto* c : _handCards) if (c->uid() == _selectedCardUid) typeId = c->typeId();
     const CardDef* def = CardDatabase::instance().getCardDef(typeId);
     showPlayAnimation(typeId, QStringLiteral("特技: ") + (def ? def->name : typeId));
+    SoundManager::instance().play("action_skill");
     NetworkManager::instance().selectCard(_selectedCardUid);
     NetworkManager::instance().confirmAction("skill");
-    _phase = Phase::WaitResponse;
-    setActionsEnabled(false, false, false);
-    addLog(QStringLiteral("使用特技: ") + (def ? def->name : typeId));
+    _phase = Phase::WaitResponse; setActionsEnabled(false,false,false);
 }
 
 void GameWidget::onHarmony() {
@@ -591,11 +634,10 @@ void GameWidget::onHarmony() {
     QString typeId;
     for (auto* c : _handCards) if (c->uid() == _selectedCardUid) typeId = c->typeId();
     showPlayAnimation(typeId, QStringLiteral("调和"));
+    SoundManager::instance().play("action_harmony");
     NetworkManager::instance().selectCard(_selectedCardUid);
     NetworkManager::instance().confirmAction("harmony");
-    _phase = Phase::WaitResponse;
-    setActionsEnabled(false, false, false);
-    addLog(QStringLiteral("放入调和区"));
+    _phase = Phase::WaitResponse; setActionsEnabled(false,false,false);
 }
 
 void GameWidget::onChallenge() {
@@ -613,13 +655,13 @@ void GameWidget::onPlayerSeatClicked(const QString& playerId) {
     QString typeId;
     for (auto* c : _handCards) if (c->uid() == _selectedCardUid) typeId = c->typeId();
     showPlayAnimation(typeId, QStringLiteral("质疑"));
+    SoundManager::instance().play("action_challenge");
     NetworkManager::instance().selectCard(_selectedCardUid);
     QJsonObject extra;
     extra["target_player_id"] = playerId;
     NetworkManager::instance().confirmAction("challenge", extra);
     _phase = Phase::WaitResponse;
     for (auto* s : _seats) s->setCursor(Qt::ArrowCursor);
-    addLog(QStringLiteral("质疑 ") + playerId);
 }
 
 // ---- Effect / Settlement / Overlays ----
@@ -629,6 +671,7 @@ void GameWidget::handleEffectState(const QJsonObject& info) {
         auto ct = info["choice_type"].toString();
         auto cd = info["choice_data"].toObject();
         addLog(QStringLiteral("效果: ") + info["card_type"].toString() + " - " + cd["message"].toString());
+        SoundManager::instance().play("effect_trigger");
         _choiceOverlay->showChoice(ct, cd);
         _turnLabel->setText(QStringLiteral("效果结算 — 请做出选择"));
         _turnLabel->setStyleSheet(QStringLiteral("color:%1;font-size:14px;font-weight:bold;").arg(QColor("#d4c5a3").name()));
@@ -700,7 +743,7 @@ void GameWidget::addLog(const QString& text) {
 
 QRect GameWidget::gameArea() const {
     int chatW = _chatVisible ? 200 : 0;
-    return {chatW, 44, width() - chatW - 220, height() - 44 - 54};
+    return {chatW, 44, width() - chatW - _logWidth, height() - 44 - 54};
 }
 
 void GameWidget::onSendChat() {
@@ -753,3 +796,42 @@ void GameWidget::keyReleaseEvent(QKeyEvent* e) {
     }
     QWidget::keyReleaseEvent(e);
 }
+
+void GameWidget::mousePressEvent(QMouseEvent* e) {
+    int logLeft = width() - _logWidth;
+    if (qAbs(e->pos().x() - logLeft) < 5 && e->pos().y() > 44) {
+        _draggingLog = true;
+        setCursor(Qt::SplitHCursor);
+        e->accept();
+        return;
+    }
+    QWidget::mousePressEvent(e);
+}
+
+void GameWidget::mouseMoveEvent(QMouseEvent* e) {
+    if (_draggingLog) {
+        _logWidth = qBound(150, width() - e->pos().x(), 400);
+        layoutFloatingUI();
+        layoutPlayerSeats();
+        QRect ga = gameArea();
+        int cx = ga.center().x();
+        _scene->setSceneRect(0, 0, width(), height());
+        if (_corpseItem) _corpseItem->setPos(cx - 70, ga.y() + ga.height() * 0.08);
+        if (_harmonyLabel) _harmonyLabel->setPos(cx - 80, ga.y() + ga.height() * 0.25);
+        e->accept();
+        return;
+    }
+    int logLeft = width() - _logWidth;
+    setCursor(qAbs(e->pos().x() - logLeft) < 5 && e->pos().y() > 44 ? Qt::SplitHCursor : Qt::ArrowCursor);
+    QWidget::mouseMoveEvent(e);
+}
+
+void GameWidget::mouseReleaseEvent(QMouseEvent* e) {
+    if (_draggingLog) {
+        _draggingLog = false;
+        setCursor(Qt::ArrowCursor);
+        e->accept();
+        return;
+    }
+    QWidget::mouseReleaseEvent(e);
+}
diff --git a/src/ui/GameWidget.h b/src/ui/GameWidget.h
index 5b41855..b387929 100644
--- a/src/ui/GameWidget.h
+++ b/src/ui/GameWidget.h
@@ -38,6 +38,9 @@ protected:
     bool eventFilter(QObject* obj, QEvent* event) override;
     void keyPressEvent(QKeyEvent* event) override;
     void keyReleaseEvent(QKeyEvent* event) override;
+    void mousePressEvent(QMouseEvent* event) override;
+    void mouseMoveEvent(QMouseEvent* event) override;
+    void mouseReleaseEvent(QMouseEvent* event) override;
 
 private:
     void initScene();
@@ -99,6 +102,8 @@ private:
     ElaLineEdit* _chatInput = nullptr;
     ElaPushButton* _chatToggle = nullptr;
     bool _chatVisible = false;
+    int _logWidth = 220;
+    bool _draggingLog = false;
 
     CardInfoPopup* _cardInfoPopup = nullptr;
     ChoiceOverlay* _choiceOverlay = nullptr;
diff --git a/src/ui/LobbyWidget.cpp b/src/ui/LobbyWidget.cpp
index bc78348..cbbfa8f 100644
--- a/src/ui/LobbyWidget.cpp
+++ b/src/ui/LobbyWidget.cpp
@@ -6,6 +6,7 @@
 #include "ElaSpinBox.h"
 #include "ElaMessageBar.h"
 #include "NetworkManager.h"
+#include "SettingsManager.h"
 
 #include <QVBoxLayout>
 #include <QHBoxLayout>
@@ -75,6 +76,21 @@ void LobbyWidget::initUI() {
     layout->setContentsMargins(30, 20, 30, 18);
     layout->setSpacing(10);
 
+    auto* headerRow = new QHBoxLayout();
+    auto* profileBtn = new ElaPushButton(QStringLiteral("我的"), card);
+    profileBtn->setFixedSize(60, 26);
+    connect(profileBtn, &ElaPushButton::clicked, this, [this]() { emit profileRequested(); });
+    headerRow->addWidget(profileBtn);
+    headerRow->addStretch();
+    auto* logoutBtn = new ElaPushButton(QStringLiteral("登出"), card);
+    logoutBtn->setFixedSize(60, 26);
+    connect(logoutBtn, &ElaPushButton::clicked, this, [this]() {
+        NetworkManager::instance().disconnect();
+        emit logoutRequested();
+    });
+    headerRow->addWidget(logoutBtn);
+    layout->addLayout(headerRow);
+
     auto* titleIcon = new QLabel(card);
     titleIcon->setPixmap(QPixmap(":/images/corpse").scaled(64, 64, Qt::KeepAspectRatio, Qt::SmoothTransformation));
     titleIcon->setAlignment(Qt::AlignCenter);
@@ -98,12 +114,12 @@ void LobbyWidget::initUI() {
     };
 
     _serverEdit = new ElaLineEdit(card);
-    _serverEdit->setText("ws://127.0.0.1:8080/ws");
+    _serverEdit->setText(SettingsManager::instance().getString("network", "server_address", "ws://127.0.0.1:8080/ws"));
     _serverEdit->setFixedHeight(30);
     makeRow(QStringLiteral("服务器"), _serverEdit);
 
     _nicknameEdit = new ElaLineEdit(card);
-    _nicknameEdit->setText(QStringLiteral("玩家"));
+    _nicknameEdit->setText(SettingsManager::instance().getString("general", "nickname", QStringLiteral("玩家")));
     _nicknameEdit->setFixedHeight(30);
     makeRow(QStringLiteral("昵称"), _nicknameEdit);
 
diff --git a/src/ui/LobbyWidget.h b/src/ui/LobbyWidget.h
index 77749a1..8797ef0 100644
--- a/src/ui/LobbyWidget.h
+++ b/src/ui/LobbyWidget.h
@@ -17,6 +17,8 @@ public:
 signals:
     void joinedRoom();
     void createdRoom();
+    void logoutRequested();
+    void profileRequested();
 
 protected:
     void paintEvent(QPaintEvent* event) override;
diff --git a/src/ui/LoginWidget.cpp b/src/ui/LoginWidget.cpp
new file mode 100644
index 0000000..dd1d277
--- /dev/null
+++ b/src/ui/LoginWidget.cpp
@@ -0,0 +1,197 @@
+#include "LoginWidget.h"
+#include "SettingsManager.h"
+#include "NetworkManager.h"
+#include "ElaLineEdit.h"
+#include "ElaPushButton.h"
+#include "ElaToggleSwitch.h"
+#include "ElaMessageBar.h"
+
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QPainter>
+#include <QLinearGradient>
+
+LoginWidget::LoginWidget(QWidget* parent) : QWidget(parent) {
+    initUI();
+
+    auto& net = NetworkManager::instance();
+    connect(&net, &NetworkManager::connected, this, [this]() {
+        _statusLabel->setText(QStringLiteral("● 已连接"));
+        _statusLabel->setStyleSheet("color:#5cb85c;font-size:12px;background:transparent;");
+        _connectBtn->setText(QStringLiteral("断开"));
+        _connectBtn->setEnabled(true);
+        _loginBtn->setEnabled(true);
+        _registerBtn->setEnabled(true);
+    });
+    connect(&net, &NetworkManager::disconnected, this, [this]() {
+        _statusLabel->setText(QStringLiteral("○ 未连接"));
+        _statusLabel->setStyleSheet("color:#8a8f9d;font-size:12px;background:transparent;");
+        _connectBtn->setText(QStringLiteral("连接"));
+        _connectBtn->setEnabled(true);
+        _loginBtn->setEnabled(false);
+        _registerBtn->setEnabled(false);
+    });
+    connect(&net, &NetworkManager::connectionError, this, [this](const QString& err) {
+        _connectBtn->setEnabled(true);
+        _connectBtn->setText(QStringLiteral("连接"));
+        ElaMessageBar::error(ElaMessageBarType::TopRight, QStringLiteral("连接失败"), err, 3000, this);
+    });
+
+    auto onResult = [this](const QJsonObject& r) {
+        bool ok = r["success"].toBool();
+        if (ok) {
+            _nickname = r["nickname"].toString();
+            if (_rememberSwitch->getIsToggled()) {
+                auto& s = SettingsManager::instance();
+                s.set("account", "remember", true);
+                s.set("account", "token", r["token"].toString());
+                    s.set("account", "username", r["username"].toString());
+                    s.set("account", "avatar", r["avatar"].toString());
+                    s.set("account", "bio", r["bio"].toString());
+                s.save();
+            }
+            ElaMessageBar::success(ElaMessageBarType::TopRight, QStringLiteral("成功"), _nickname, 2000, this);
+            emit loggedIn(_nickname);
+        } else {
+            ElaMessageBar::error(ElaMessageBarType::TopRight, QStringLiteral("失败"), r["message"].toString(), 3000, this);
+        }
+    };
+    connect(&net, &NetworkManager::loginResult, this, onResult);
+    connect(&net, &NetworkManager::registerResult, this, onResult);
+}
+
+void LoginWidget::initUI() {
+    auto* outer = new QVBoxLayout(this);
+    outer->setAlignment(Qt::AlignCenter);
+
+    auto* card = new QWidget(this);
+    card->setFixedSize(380, 420);
+    card->setObjectName("loginCard");
+    card->setStyleSheet("QWidget#loginCard{background:rgba(37,43,61,230);border-radius:16px;border:1px solid rgba(94,179,230,30);}");
+    auto* lay = new QVBoxLayout(card);
+    lay->setContentsMargins(30, 20, 30, 20);
+    lay->setSpacing(10);
+
+    auto* icon = new QLabel(card);
+    icon->setPixmap(QPixmap(":/images/corpse").scaled(56, 56, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+    icon->setAlignment(Qt::AlignCenter);
+    icon->setStyleSheet("background:transparent;");
+    lay->addWidget(icon);
+
+    auto* title = new QLabel(QStringLiteral("冰冷的她醒来之前"), card);
+    title->setStyleSheet("color:white;font-size:18px;font-weight:bold;background:transparent;");
+    title->setAlignment(Qt::AlignCenter);
+    lay->addWidget(title);
+    lay->addSpacing(8);
+
+    auto& s = SettingsManager::instance();
+
+    _serverEdit = new ElaLineEdit(card);
+    _serverEdit->setText(s.getString("network", "server_address", "ws://127.0.0.1:8080/ws"));
+    _serverEdit->setFixedHeight(30);
+    _serverEdit->setPlaceholderText(QStringLiteral("服务器地址"));
+    lay->addWidget(_serverEdit);
+
+    auto* connRow = new QHBoxLayout();
+    _statusLabel = new QLabel(QStringLiteral("○ 未连接"), card);
+    _statusLabel->setStyleSheet("color:#8a8f9d;font-size:12px;background:transparent;");
+    _connectBtn = new ElaPushButton(QStringLiteral("连接"), card);
+    _connectBtn->setFixedSize(70, 28);
+    connect(_connectBtn, &ElaPushButton::clicked, this, &LoginWidget::onConnect);
+    connRow->addWidget(_statusLabel);
+    connRow->addStretch();
+    connRow->addWidget(_connectBtn);
+    lay->addLayout(connRow);
+
+    _usernameEdit = new ElaLineEdit(card);
+    _usernameEdit->setPlaceholderText(QStringLiteral("用户名"));
+    _usernameEdit->setText(s.getString("account", "username"));
+    _usernameEdit->setFixedHeight(30);
+    lay->addWidget(_usernameEdit);
+
+    _passwordEdit = new ElaLineEdit(card);
+    _passwordEdit->setPlaceholderText(QStringLiteral("密码"));
+    _passwordEdit->setEchoMode(QLineEdit::Password);
+    _passwordEdit->setFixedHeight(30);
+    lay->addWidget(_passwordEdit);
+
+    auto* remRow = new QHBoxLayout();
+    auto* remLbl = new QLabel(QStringLiteral("记住登录"), card);
+    remLbl->setStyleSheet("color:#e0e0e0;font-size:12px;background:transparent;");
+    _rememberSwitch = new ElaToggleSwitch(card);
+    _rememberSwitch->setIsToggled(s.getBool("account", "remember", false));
+    remRow->addWidget(remLbl);
+    remRow->addStretch();
+    remRow->addWidget(_rememberSwitch);
+    lay->addLayout(remRow);
+
+    auto* btnRow = new QHBoxLayout();
+    btnRow->setSpacing(10);
+    _loginBtn = new ElaPushButton(QStringLiteral("登录"), card);
+    _loginBtn->setFixedHeight(34);
+    _loginBtn->setEnabled(false);
+    connect(_loginBtn, &ElaPushButton::clicked, this, &LoginWidget::onLogin);
+    _registerBtn = new ElaPushButton(QStringLiteral("注册"), card);
+    _registerBtn->setFixedHeight(34);
+    _registerBtn->setEnabled(false);
+    connect(_registerBtn, &ElaPushButton::clicked, this, &LoginWidget::onRegister);
+    btnRow->addWidget(_loginBtn);
+    btnRow->addWidget(_registerBtn);
+    lay->addLayout(btnRow);
+
+    lay->addStretch();
+    outer->addWidget(card);
+}
+
+void LoginWidget::paintEvent(QPaintEvent*) {
+    QPainter p(this);
+    QLinearGradient grad(0, 0, width(), height());
+    grad.setColorAt(0, QColor("#1a1f2e"));
+    grad.setColorAt(1, QColor("#15192a"));
+    p.fillRect(rect(), grad);
+}
+
+QString LoginWidget::nickname() const { return _nickname; }
+
+void LoginWidget::onConnect() {
+    auto& net = NetworkManager::instance();
+    if (net.isConnected()) { net.disconnect(); return; }
+    _connectBtn->setEnabled(false);
+    _connectBtn->setText(QStringLiteral("连接中..."));
+    net.connectToServer(_serverEdit->text().trimmed());
+}
+
+void LoginWidget::onLogin() {
+    auto user = _usernameEdit->text().trimmed();
+    auto pass = _passwordEdit->text();
+    QJsonObject p;
+
+    if (!pass.isEmpty()) {
+        p["username"] = user;
+        p["password"] = pass;
+    } else {
+        auto token = SettingsManager::instance().getString("account", "token");
+        if (!token.isEmpty()) {
+            p["token"] = token;
+        } else {
+            ElaMessageBar::warning(ElaMessageBarType::TopRight, QStringLiteral("提示"), QStringLiteral("请输入密码"), 2000, this);
+            return;
+        }
+    }
+    NetworkManager::instance().sendMessage("login", p);
+}
+
+void LoginWidget::onRegister() {
+    auto user = _usernameEdit->text().trimmed();
+    auto pass = _passwordEdit->text();
+    if (user.isEmpty() || pass.isEmpty()) {
+        ElaMessageBar::warning(ElaMessageBarType::TopRight, QStringLiteral("提示"), QStringLiteral("请输入用户名和密码"), 2000, this);
+        return;
+    }
+    QJsonObject p;
+    p["username"] = user;
+    p["password"] = pass;
+    p["nickname"] = user;
+    NetworkManager::instance().sendMessage("register", p);
+}
diff --git a/src/ui/LoginWidget.h b/src/ui/LoginWidget.h
new file mode 100644
index 0000000..017b05d
--- /dev/null
+++ b/src/ui/LoginWidget.h
@@ -0,0 +1,40 @@
+#ifndef LOGINWIDGET_H
+#define LOGINWIDGET_H
+
+#include <QWidget>
+
+class ElaLineEdit;
+class ElaPushButton;
+class ElaToggleSwitch;
+class QLabel;
+
+class LoginWidget : public QWidget {
+    Q_OBJECT
+public:
+    explicit LoginWidget(QWidget* parent = nullptr);
+    QString nickname() const;
+
+signals:
+    void loggedIn(const QString& nickname);
+
+protected:
+    void paintEvent(QPaintEvent* event) override;
+
+private:
+    void initUI();
+    void onConnect();
+    void onLogin();
+    void onRegister();
+
+    ElaLineEdit* _serverEdit = nullptr;
+    ElaLineEdit* _usernameEdit = nullptr;
+    ElaLineEdit* _passwordEdit = nullptr;
+    ElaToggleSwitch* _rememberSwitch = nullptr;
+    ElaPushButton* _connectBtn = nullptr;
+    ElaPushButton* _loginBtn = nullptr;
+    ElaPushButton* _registerBtn = nullptr;
+    QLabel* _statusLabel = nullptr;
+    QString _nickname;
+};
+
+#endif
diff --git a/src/ui/MainWindow.cpp b/src/ui/MainWindow.cpp
index 1676d8c..bf5ac28 100644
--- a/src/ui/MainWindow.cpp
+++ b/src/ui/MainWindow.cpp
@@ -1,7 +1,10 @@
 #include "MainWindow.h"
+#include "LoginWidget.h"
 #include "LobbyWidget.h"
 #include "RoomWidget.h"
 #include "GameWidget.h"
+#include "ProfileDialog.h"
+#include "SettingsManager.h"
 
 #include <QStackedWidget>
 #include <QVBoxLayout>
@@ -21,23 +24,34 @@ void MainWindow::initUI() {
     layout->setContentsMargins(0, 0, 0, 0);
 
     _stack = new QStackedWidget(this);
+    _login = new LoginWidget(this);
     _lobby = new LobbyWidget(this);
     _room = new RoomWidget(this);
     _game = new GameWidget(this);
 
+    _stack->addWidget(_login);
     _stack->addWidget(_lobby);
     _stack->addWidget(_room);
     _stack->addWidget(_game);
-    _stack->setCurrentWidget(_lobby);
+    _stack->setCurrentWidget(_login);
     layout->addWidget(_stack);
 
+    connect(_login, &LoginWidget::loggedIn, this, &MainWindow::switchToLobby);
+    connect(_lobby, &LobbyWidget::logoutRequested, this, &MainWindow::switchToLogin);
+    connect(_lobby, &LobbyWidget::profileRequested, this, [this]() {
+        auto& s = SettingsManager::instance();
+        ProfileDialog dlg(s.getString("account", "nickname", s.getString("general", "nickname")),
+                          s.getString("account", "bio"), s.getString("account", "avatar"), this);
+        dlg.exec();
+    });
     connect(_lobby, &LobbyWidget::createdRoom, this, &MainWindow::switchToRoom);
     connect(_lobby, &LobbyWidget::joinedRoom, this, &MainWindow::switchToRoom);
     connect(_room, &RoomWidget::gameStarted, this, &MainWindow::switchToGame);
     connect(_room, &RoomWidget::leftRoom, this, &MainWindow::switchToLobby);
-    connect(_game, &GameWidget::gameFinished, this, &MainWindow::switchToRoom);
+    connect(_game, &GameWidget::gameFinished, this, &MainWindow::switchToLobby);
 }
 
+void MainWindow::switchToLogin() { _stack->setCurrentWidget(_login); }
 void MainWindow::switchToLobby() { _stack->setCurrentWidget(_lobby); }
 void MainWindow::switchToRoom() { _stack->setCurrentWidget(_room); }
 void MainWindow::switchToGame() { _stack->setCurrentWidget(_game); }
diff --git a/src/ui/MainWindow.h b/src/ui/MainWindow.h
index 5198550..1409fe5 100644
--- a/src/ui/MainWindow.h
+++ b/src/ui/MainWindow.h
@@ -4,6 +4,7 @@
 #include <QWidget>
 
 class QStackedWidget;
+class LoginWidget;
 class LobbyWidget;
 class RoomWidget;
 class GameWidget;
@@ -13,6 +14,7 @@ class MainWindow : public QWidget {
 public:
     explicit MainWindow(QWidget* parent = nullptr);
 
+    void switchToLogin();
     void switchToLobby();
     void switchToRoom();
     void switchToGame();
@@ -21,6 +23,7 @@ private:
     void initUI();
 
     QStackedWidget* _stack = nullptr;
+    LoginWidget* _login = nullptr;
     LobbyWidget* _lobby = nullptr;
     RoomWidget* _room = nullptr;
     GameWidget* _game = nullptr;
diff --git a/src/ui/ProfileDialog.cpp b/src/ui/ProfileDialog.cpp
new file mode 100644
index 0000000..1e7fae4
--- /dev/null
+++ b/src/ui/ProfileDialog.cpp
@@ -0,0 +1,111 @@
+#include "ProfileDialog.h"
+#include "NetworkManager.h"
+#include "ElaLineEdit.h"
+#include "ElaPushButton.h"
+#include "ElaMessageBar.h"
+#include "CardData.h"
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QGridLayout>
+#include <QEvent>
+
+ProfileDialog::ProfileDialog(const QString& nickname, const QString& bio, const QString& avatar, QWidget* parent)
+    : QDialog(parent), _avatar(avatar)
+{
+    setWindowTitle(QStringLiteral("我的资料"));
+    setFixedSize(480, 440);
+    setStyleSheet("QDialog{background:#1a1f2e;}QLabel{color:#e0e0e0;background:transparent;}");
+
+    auto* lay = new QVBoxLayout(this);
+    lay->setSpacing(10);
+
+    auto* title = new QLabel(QStringLiteral("个人资料"), this);
+    title->setStyleSheet("color:#5eb3e6;font-size:18px;font-weight:bold;");
+    title->setAlignment(Qt::AlignCenter);
+    lay->addWidget(title);
+
+    _avatarLabel = new QLabel(this);
+    _avatarLabel->setFixedSize(80, 80);
+    _avatarLabel->setAlignment(Qt::AlignCenter);
+    _avatarLabel->setStyleSheet("border:2px solid #5eb3e6;border-radius:8px;");
+    if (!avatar.isEmpty()) {
+        QPixmap px = CardDatabase::instance().getCardFrontImage(avatar);
+        if (!px.isNull()) _avatarLabel->setPixmap(px.scaled(76, 76, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+    }
+    lay->addWidget(_avatarLabel, 0, Qt::AlignCenter);
+
+    auto* avLabel = new QLabel(QStringLiteral("选择头像 (点击卡牌)"), this);
+    avLabel->setStyleSheet("color:#8a8f9d;font-size:11px;");
+    avLabel->setAlignment(Qt::AlignCenter);
+    lay->addWidget(avLabel);
+
+    auto* grid = new QGridLayout();
+    grid->setSpacing(6);
+    QStringList ids = {"student_council_president","class_monitor","honor_student","discipline_committee_member",
+        "library_committee_member","health_committee_member","young_lady","newspaper_club",
+        "go_home_club","infected_person","accomplice","culprit","alien"};
+    for (int i = 0; i < ids.size(); ++i) {
+        auto* btn = new QLabel(this);
+        btn->setFixedSize(42, 42);
+        btn->setCursor(Qt::PointingHandCursor);
+        QPixmap px = CardDatabase::instance().getCardFrontImage(ids[i]);
+        if (!px.isNull()) btn->setPixmap(px.scaled(38, 38, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+        btn->setStyleSheet(ids[i] == _avatar ? "border:2px solid #5eb3e6;border-radius:4px;" : "border:1px solid #3a3f4e;border-radius:4px;");
+        btn->setProperty("avid", ids[i]);
+        btn->installEventFilter(this);
+        grid->addWidget(btn, i / 7, i % 7);
+    }
+    lay->addLayout(grid);
+
+    auto* row1 = new QHBoxLayout();
+    row1->addWidget(new QLabel(QStringLiteral("昵称"), this));
+    _nickEdit = new ElaLineEdit(this); _nickEdit->setText(nickname); _nickEdit->setFixedHeight(28);
+    row1->addWidget(_nickEdit, 1);
+    lay->addLayout(row1);
+
+    auto* row2 = new QHBoxLayout();
+    row2->addWidget(new QLabel(QStringLiteral("简介"), this));
+    _bioEdit = new ElaLineEdit(this); _bioEdit->setText(bio); _bioEdit->setFixedHeight(28);
+    row2->addWidget(_bioEdit, 1);
+    lay->addLayout(row2);
+
+    auto* btnRow = new QHBoxLayout();
+    btnRow->addStretch();
+    auto* saveBtn = new ElaPushButton(QStringLiteral("保存"), this);
+    saveBtn->setFixedSize(80, 32);
+    connect(saveBtn, &ElaPushButton::clicked, this, &ProfileDialog::save);
+    auto* closeBtn = new ElaPushButton(QStringLiteral("关闭"), this);
+    closeBtn->setFixedSize(80, 32);
+    connect(closeBtn, &ElaPushButton::clicked, this, &QDialog::accept);
+    btnRow->addWidget(saveBtn);
+    btnRow->addWidget(closeBtn);
+    lay->addLayout(btnRow);
+}
+
+bool ProfileDialog::eventFilter(QObject* obj, QEvent* event) {
+    if (event->type() == QEvent::MouseButtonPress) {
+        auto* lbl = qobject_cast<QLabel*>(obj);
+        if (lbl && lbl->property("avid").isValid()) {
+            _avatar = lbl->property("avid").toString();
+            QPixmap px = CardDatabase::instance().getCardFrontImage(_avatar);
+            if (!px.isNull()) _avatarLabel->setPixmap(px.scaled(76, 76, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+            for (auto* child : findChildren<QLabel*>()) {
+                if (child->property("avid").isValid())
+                    child->setStyleSheet(child->property("avid").toString() == _avatar
+                        ? "border:2px solid #5eb3e6;border-radius:4px;" : "border:1px solid #3a3f4e;border-radius:4px;");
+            }
+            return true;
+        }
+    }
+    return QDialog::eventFilter(obj, event);
+}
+
+void ProfileDialog::save() {
+    QJsonObject p;
+    p["nickname"] = _nickEdit->text();
+    p["bio"] = _bioEdit->text();
+    p["avatar"] = _avatar;
+    NetworkManager::instance().sendMessage("update_profile", p);
+    ElaMessageBar::success(ElaMessageBarType::TopRight, QStringLiteral("保存"), QStringLiteral("资料已更新"), 2000, this);
+}
diff --git a/src/ui/ProfileDialog.h b/src/ui/ProfileDialog.h
new file mode 100644
index 0000000..08c6981
--- /dev/null
+++ b/src/ui/ProfileDialog.h
@@ -0,0 +1,22 @@
+#ifndef PROFILEDIALOG_H
+#define PROFILEDIALOG_H
+
+#include <QDialog>
+class ElaLineEdit;
+class ElaPushButton;
+class QLabel;
+
+class ProfileDialog : public QDialog {
+    Q_OBJECT
+public:
+    explicit ProfileDialog(const QString& nickname, const QString& bio, const QString& avatar, QWidget* parent = nullptr);
+protected:
+    bool eventFilter(QObject* obj, QEvent* event) override;
+private:
+    void save();
+    ElaLineEdit* _nickEdit = nullptr;
+    ElaLineEdit* _bioEdit = nullptr;
+    QString _avatar;
+    QLabel* _avatarLabel = nullptr;
+};
+#endif
diff --git a/src/ui/RoomWidget.cpp b/src/ui/RoomWidget.cpp
index e00308e..978517b 100644
--- a/src/ui/RoomWidget.cpp
+++ b/src/ui/RoomWidget.cpp
@@ -73,6 +73,11 @@ void RoomWidget::initUI() {
     auto* chaosLbl = new QLabel(QStringLiteral("混沌模式"), card);
     chaosLbl->setStyleSheet("color: #999; font-size: 12px; background:transparent;");
     _chaosSwitch = new ElaToggleSwitch(card);
+    connect(_chaosSwitch, &ElaToggleSwitch::toggled, this, [](bool checked) {
+        QJsonObject payload;
+        payload["enabled"] = checked;
+        NetworkManager::instance().sendMessage("set_chaos", payload);
+    });
     chaosRow->addWidget(chaosLbl);
     chaosRow->addStretch();
     chaosRow->addWidget(_chaosSwitch);
diff --git a/src/ui/SceneCardItem.cpp b/src/ui/SceneCardItem.cpp
index d08dd23..cf1b33d 100644
--- a/src/ui/SceneCardItem.cpp
+++ b/src/ui/SceneCardItem.cpp
@@ -85,7 +85,7 @@ void SceneCardItem::paint(QPainter* p, const QStyleOptionGraphicsItem*, QWidget*
             p->setBrush(QColor(0, 0, 0, 160));
             QRectF badge(3, 3, 26, 20);
             p->drawRoundedRect(badge, 4, 4);
-            p->setFont(QFont("Consolas", 11, QFont::Bold));
+            p->setFont(QFont("monospace", 11, QFont::Bold));
             p->setPen(def->mp >= 0 ? QColor("#d4c5a3") : QColor("#d94f5c"));
             p->drawText(badge, Qt::AlignCenter, QString::number(def->mp));
         }
diff --git a/src/ui/SettingsDialog.cpp b/src/ui/SettingsDialog.cpp
new file mode 100644
index 0000000..b2c9221
--- /dev/null
+++ b/src/ui/SettingsDialog.cpp
@@ -0,0 +1,344 @@
+#include "SettingsDialog.h"
+#include "SettingsManager.h"
+#include "VoiceManager.h"
+#include "ElaLineEdit.h"
+#include "ElaPushButton.h"
+#include "ElaSlider.h"
+#include "ElaToggleSwitch.h"
+
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QListWidget>
+#include <QStackedWidget>
+#include <QComboBox>
+#include <QRadioButton>
+#include <QGroupBox>
+#include <QMessageBox>
+#include <QCloseEvent>
+#include <QMediaDevices>
+#include <QAudioDevice>
+
+static const QString SS_PAGE = "background:transparent;";
+static const QString SS_TITLE = "color:#5eb3e6;font-size:16px;font-weight:bold;background:transparent;";
+static const QString SS_LABEL = "color:#e0e0e0;font-size:13px;background:transparent;";
+static const QString SS_DIM = "color:#8a8f9d;font-size:11px;background:transparent;";
+
+SettingsDialog::SettingsDialog(QWidget* parent) : QDialog(parent)
+{
+    setWindowTitle(QStringLiteral("设置"));
+    setFixedSize(620, 460);
+    setStyleSheet("QDialog{background:#1a1f2e;} QGroupBox{color:#8a8f9d;border:1px solid #2a3040;border-radius:8px;margin-top:10px;padding-top:16px;} QGroupBox::title{subcontrol-origin:margin;left:12px;padding:0 4px;}");
+
+    auto* root = new QHBoxLayout(this);
+    root->setContentsMargins(0, 0, 0, 0);
+    root->setSpacing(0);
+
+    _categoryList = new QListWidget(this);
+    _categoryList->setFixedWidth(140);
+    _categoryList->setStyleSheet("QListWidget{background:#151a28;border:none;border-right:1px solid #2a3040;color:#e0e0e0;font-size:14px;} QListWidget::item{padding:12px 16px;} QListWidget::item:selected{background:#252b3d;color:#5eb3e6;border-left:3px solid #5eb3e6;}");
+    _categoryList->addItem(QStringLiteral("通用"));
+    _categoryList->addItem(QStringLiteral("网络"));
+    _categoryList->addItem(QStringLiteral("语音"));
+    _categoryList->addItem(QStringLiteral("音频"));
+    _categoryList->addItem(QStringLiteral("显示"));
+    root->addWidget(_categoryList);
+
+    auto* rightPanel = new QWidget(this);
+    auto* rLay = new QVBoxLayout(rightPanel);
+    rLay->setContentsMargins(16, 12, 16, 12);
+    rLay->setSpacing(8);
+
+    _pages = new QStackedWidget(rightPanel);
+    _pages->addWidget(buildGeneralPage());
+    _pages->addWidget(buildNetworkPage());
+    _pages->addWidget(buildVoicePage());
+    _pages->addWidget(buildAudioPage());
+    _pages->addWidget(buildDisplayPage());
+    rLay->addWidget(_pages, 1);
+
+    auto* btnRow = new QHBoxLayout();
+    auto* resetBtn = new ElaPushButton(QStringLiteral("恢复默认"), rightPanel);
+    resetBtn->setFixedHeight(32);
+    connect(resetBtn, &ElaPushButton::clicked, this, [this]() {
+        SettingsManager::instance().resetToDefaults();
+        loadFromConfig();
+        _dirty = true;
+    });
+    auto* saveBtn = new ElaPushButton(QStringLiteral("保存"), rightPanel);
+    saveBtn->setFixedHeight(32);
+    connect(saveBtn, &ElaPushButton::clicked, this, [this]() {
+        saveToConfig();
+        SettingsManager::instance().save();
+        _dirty = false;
+        accept();
+    });
+    auto* cancelBtn = new ElaPushButton(QStringLiteral("取消"), rightPanel);
+    cancelBtn->setFixedHeight(32);
+    connect(cancelBtn, &ElaPushButton::clicked, this, &QDialog::reject);
+    btnRow->addWidget(resetBtn);
+    btnRow->addStretch();
+    btnRow->addWidget(saveBtn);
+    btnRow->addWidget(cancelBtn);
+    rLay->addLayout(btnRow);
+
+    root->addWidget(rightPanel, 1);
+
+    connect(_categoryList, &QListWidget::currentRowChanged, _pages, &QStackedWidget::setCurrentIndex);
+    _categoryList->setCurrentRow(0);
+
+    loadFromConfig();
+}
+
+QWidget* SettingsDialog::buildGeneralPage() {
+    auto* page = new QWidget();
+    page->setStyleSheet(SS_PAGE);
+    auto* lay = new QVBoxLayout(page);
+    auto* title = new QLabel(QStringLiteral("通用设置"), page);
+    title->setStyleSheet(SS_TITLE);
+    lay->addWidget(title);
+
+    auto* grp = new QGroupBox(QStringLiteral("玩家信息"), page);
+    auto* gLay = new QVBoxLayout(grp);
+    auto* row = new QHBoxLayout();
+    auto* lbl = new QLabel(QStringLiteral("默认昵称"), grp);
+    lbl->setStyleSheet(SS_LABEL);
+    _nicknameEdit = new ElaLineEdit(grp);
+    _nicknameEdit->setFixedHeight(30);
+    connect(_nicknameEdit, &ElaLineEdit::textChanged, this, [this]() { _dirty = true; });
+    row->addWidget(lbl);
+    row->addWidget(_nicknameEdit, 1);
+    gLay->addLayout(row);
+    lay->addWidget(grp);
+    lay->addStretch();
+    return page;
+}
+
+QWidget* SettingsDialog::buildNetworkPage() {
+    auto* page = new QWidget();
+    page->setStyleSheet(SS_PAGE);
+    auto* lay = new QVBoxLayout(page);
+    auto* title = new QLabel(QStringLiteral("网络设置"), page);
+    title->setStyleSheet(SS_TITLE);
+    lay->addWidget(title);
+
+    auto* grp = new QGroupBox(QStringLiteral("连接"), page);
+    auto* gLay = new QVBoxLayout(grp);
+    auto* row = new QHBoxLayout();
+    auto* lbl = new QLabel(QStringLiteral("默认服务器"), grp);
+    lbl->setStyleSheet(SS_LABEL);
+    _serverEdit = new ElaLineEdit(grp);
+    _serverEdit->setFixedHeight(30);
+    connect(_serverEdit, &ElaLineEdit::textChanged, this, [this]() { _dirty = true; });
+    row->addWidget(lbl);
+    row->addWidget(_serverEdit, 1);
+    gLay->addLayout(row);
+    auto* hint = new QLabel(QStringLiteral("格式: ws://地址:端口/ws"), grp);
+    hint->setStyleSheet(SS_DIM);
+    gLay->addWidget(hint);
+    lay->addWidget(grp);
+    lay->addStretch();
+    return page;
+}
+
+QWidget* SettingsDialog::buildVoicePage() {
+    auto* page = new QWidget();
+    page->setStyleSheet(SS_PAGE);
+    auto* lay = new QVBoxLayout(page);
+    auto* title = new QLabel(QStringLiteral("语音设置"), page);
+    title->setStyleSheet(SS_TITLE);
+    lay->addWidget(title);
+
+    auto* devGrp = new QGroupBox(QStringLiteral("设备"), page);
+    auto* dLay = new QVBoxLayout(devGrp);
+    auto* inRow = new QHBoxLayout();
+    auto* inLbl = new QLabel(QStringLiteral("输入 (麦克风)"), devGrp);
+    inLbl->setStyleSheet(SS_LABEL);
+    _inputDevCombo = new QComboBox(devGrp);
+    for (const auto& d : QMediaDevices::audioInputs()) _inputDevCombo->addItem(d.description());
+    if (_inputDevCombo->count() == 0) _inputDevCombo->addItem(QStringLiteral("(无)"));
+    connect(_inputDevCombo, &QComboBox::currentIndexChanged, this, [this]() { _dirty = true; });
+    inRow->addWidget(inLbl);
+    inRow->addWidget(_inputDevCombo, 1);
+    dLay->addLayout(inRow);
+    auto* outRow = new QHBoxLayout();
+    auto* outLbl = new QLabel(QStringLiteral("输出 (扬声器)"), devGrp);
+    outLbl->setStyleSheet(SS_LABEL);
+    _outputDevCombo = new QComboBox(devGrp);
+    for (const auto& d : QMediaDevices::audioOutputs()) _outputDevCombo->addItem(d.description());
+    if (_outputDevCombo->count() == 0) _outputDevCombo->addItem(QStringLiteral("(无)"));
+    connect(_outputDevCombo, &QComboBox::currentIndexChanged, this, [this]() { _dirty = true; });
+    outRow->addWidget(outLbl);
+    outRow->addWidget(_outputDevCombo, 1);
+    dLay->addLayout(outRow);
+    lay->addWidget(devGrp);
+
+    auto* modeGrp = new QGroupBox(QStringLiteral("说话模式"), page);
+    auto* mLay = new QVBoxLayout(modeGrp);
+    _pttRadio = new QRadioButton(QStringLiteral("按住说话 — 按住 V 键时可说话，松开停止"), modeGrp);
+    _toggleRadio = new QRadioButton(QStringLiteral("按键切换 — 按 V 键开始/停止说话"), modeGrp);
+    _pttRadio->setStyleSheet(SS_LABEL);
+    _toggleRadio->setStyleSheet(SS_LABEL);
+    connect(_pttRadio, &QRadioButton::toggled, this, [this]() { _dirty = true; });
+    mLay->addWidget(_pttRadio);
+    mLay->addWidget(_toggleRadio);
+    auto* hint = new QLabel(QStringLiteral("在聊天输入框输入时 V 键不触发语音"), modeGrp);
+    hint->setStyleSheet(SS_DIM);
+    mLay->addWidget(hint);
+    lay->addWidget(modeGrp);
+    lay->addStretch();
+    return page;
+}
+
+QWidget* SettingsDialog::buildAudioPage() {
+    auto* page = new QWidget();
+    page->setStyleSheet(SS_PAGE);
+    auto* lay = new QVBoxLayout(page);
+    auto* title = new QLabel(QStringLiteral("音频设置"), page);
+    title->setStyleSheet(SS_TITLE);
+    lay->addWidget(title);
+
+    auto* grp = new QGroupBox(QStringLiteral("音量"), page);
+    auto* gLay = new QVBoxLayout(grp);
+
+    auto* mRow = new QHBoxLayout();
+    auto* mLbl = new QLabel(QStringLiteral("主音量"), grp);
+    mLbl->setStyleSheet(SS_LABEL);
+    _masterVolSlider = new ElaSlider(Qt::Horizontal, grp);
+    _masterVolSlider->setRange(0, 100);
+    _masterVolLabel = new QLabel("80", grp);
+    _masterVolLabel->setStyleSheet(SS_LABEL);
+    _masterVolLabel->setFixedWidth(30);
+    connect(_masterVolSlider, &ElaSlider::valueChanged, this, [this](int v) {
+        _masterVolLabel->setText(QString::number(v));
+        _dirty = true;
+    });
+    mRow->addWidget(mLbl);
+    mRow->addWidget(_masterVolSlider, 1);
+    mRow->addWidget(_masterVolLabel);
+    gLay->addLayout(mRow);
+
+    auto* vRow = new QHBoxLayout();
+    auto* vLbl = new QLabel(QStringLiteral("语音音量"), grp);
+    vLbl->setStyleSheet(SS_LABEL);
+    _voiceVolSlider = new ElaSlider(Qt::Horizontal, grp);
+    _voiceVolSlider->setRange(0, 100);
+    _voiceVolLabel = new QLabel("100", grp);
+    _voiceVolLabel->setStyleSheet(SS_LABEL);
+    _voiceVolLabel->setFixedWidth(30);
+    connect(_voiceVolSlider, &ElaSlider::valueChanged, this, [this](int v) {
+        _voiceVolLabel->setText(QString::number(v));
+        _dirty = true;
+    });
+    vRow->addWidget(vLbl);
+    vRow->addWidget(_voiceVolSlider, 1);
+    vRow->addWidget(_voiceVolLabel);
+    gLay->addLayout(vRow);
+
+    lay->addWidget(grp);
+    lay->addStretch();
+    return page;
+}
+
+QWidget* SettingsDialog::buildDisplayPage() {
+    auto* page = new QWidget();
+    page->setStyleSheet(SS_PAGE);
+    auto* lay = new QVBoxLayout(page);
+    auto* title = new QLabel(QStringLiteral("显示设置"), page);
+    title->setStyleSheet(SS_TITLE);
+    lay->addWidget(title);
+
+    auto* grp = new QGroupBox(QStringLiteral("动画"), page);
+    auto* gLay = new QVBoxLayout(grp);
+    auto* row = new QHBoxLayout();
+    auto* lbl = new QLabel(QStringLiteral("启用动画效果"), grp);
+    lbl->setStyleSheet(SS_LABEL);
+    _animSwitch = new ElaToggleSwitch(grp);
+    connect(_animSwitch, &ElaToggleSwitch::toggled, this, [this]() { _dirty = true; });
+    row->addWidget(lbl);
+    row->addStretch();
+    row->addWidget(_animSwitch);
+    gLay->addLayout(row);
+    lay->addWidget(grp);
+    lay->addStretch();
+    return page;
+}
+
+void SettingsDialog::loadFromConfig() {
+    auto& s = SettingsManager::instance();
+    _nicknameEdit->setText(s.getString("general", "nickname", "Player"));
+    _serverEdit->setText(s.getString("network", "server_address", "ws://127.0.0.1:8080/ws"));
+
+    auto mode = s.getString("voice", "mode", "ptt");
+    _pttRadio->setChecked(mode == "ptt");
+    _toggleRadio->setChecked(mode != "ptt");
+
+    auto savedIn = s.getString("voice", "input_device");
+    if (!savedIn.isEmpty()) {
+        int idx = _inputDevCombo->findText(savedIn);
+        if (idx >= 0) _inputDevCombo->setCurrentIndex(idx);
+    }
+    auto savedOut = s.getString("voice", "output_device");
+    if (!savedOut.isEmpty()) {
+        int idx = _outputDevCombo->findText(savedOut);
+        if (idx >= 0) _outputDevCombo->setCurrentIndex(idx);
+    }
+
+    _masterVolSlider->setValue(s.getInt("audio", "master_volume", 80));
+    _masterVolLabel->setText(QString::number(_masterVolSlider->value()));
+    _voiceVolSlider->setValue(s.getInt("audio", "voice_volume", 100));
+    _voiceVolLabel->setText(QString::number(_voiceVolSlider->value()));
+
+    _animSwitch->setIsToggled(s.getBool("display", "animations_enabled", true));
+    _dirty = false;
+}
+
+void SettingsDialog::saveToConfig() {
+    auto& s = SettingsManager::instance();
+    s.set("general", "nickname", _nicknameEdit->text());
+    s.set("network", "server_address", _serverEdit->text());
+    s.set("voice", "mode", _pttRadio->isChecked() ? "ptt" : "toggle");
+    s.set("voice", "input_device", _inputDevCombo->currentText());
+    s.set("voice", "output_device", _outputDevCombo->currentText());
+    s.set("audio", "master_volume", _masterVolSlider->value());
+    s.set("audio", "voice_volume", _voiceVolSlider->value());
+    s.set("display", "animations_enabled", _animSwitch->getIsToggled());
+
+    auto& v = VoiceManager::instance();
+    v.setMode(_pttRadio->isChecked() ? VoiceManager::PushToTalk : VoiceManager::Toggle);
+
+    for (const auto& d : QMediaDevices::audioInputs()) {
+        if (d.description() == _inputDevCombo->currentText()) {
+            v.setInputDevice(d); break;
+        }
+    }
+    for (const auto& d : QMediaDevices::audioOutputs()) {
+        if (d.description() == _outputDevCombo->currentText()) {
+            v.setOutputDevice(d); break;
+        }
+    }
+
+    if (!v.isActive()) v.start();
+    emit SettingsManager::instance().settingsChanged();
+}
+
+bool SettingsDialog::hasChanges() const { return _dirty; }
+
+void SettingsDialog::closeEvent(QCloseEvent* e) {
+    if (_dirty) {
+        auto r = QMessageBox::question(const_cast<SettingsDialog*>(this),
+            QStringLiteral("未保存"), QStringLiteral("设置已修改但尚未保存，是否保存？"),
+            QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
+        if (r == QMessageBox::Save) {
+            saveToConfig();
+            SettingsManager::instance().save();
+            e->accept();
+        } else if (r == QMessageBox::Discard) {
+            e->accept();
+        } else {
+            e->ignore();
+        }
+    } else {
+        e->accept();
+    }
+}
diff --git a/src/ui/SettingsDialog.h b/src/ui/SettingsDialog.h
new file mode 100644
index 0000000..896b6f5
--- /dev/null
+++ b/src/ui/SettingsDialog.h
@@ -0,0 +1,53 @@
+#ifndef SETTINGSDIALOG_H
+#define SETTINGSDIALOG_H
+
+#include <QDialog>
+#include <QJsonObject>
+
+class QListWidget;
+class QStackedWidget;
+class ElaLineEdit;
+class ElaSlider;
+class ElaToggleSwitch;
+class QComboBox;
+class QRadioButton;
+class QLabel;
+
+class SettingsDialog : public QDialog {
+    Q_OBJECT
+public:
+    explicit SettingsDialog(QWidget* parent = nullptr);
+
+protected:
+    void closeEvent(QCloseEvent* event) override;
+
+private:
+    QWidget* buildGeneralPage();
+    QWidget* buildNetworkPage();
+    QWidget* buildVoicePage();
+    QWidget* buildAudioPage();
+    QWidget* buildDisplayPage();
+    void loadFromConfig();
+    void saveToConfig();
+    bool hasChanges() const;
+
+    QListWidget* _categoryList = nullptr;
+    QStackedWidget* _pages = nullptr;
+
+    ElaLineEdit* _nicknameEdit = nullptr;
+    ElaLineEdit* _serverEdit = nullptr;
+    QComboBox* _inputDevCombo = nullptr;
+    QComboBox* _outputDevCombo = nullptr;
+    QRadioButton* _pttRadio = nullptr;
+    QRadioButton* _toggleRadio = nullptr;
+    ElaSlider* _masterVolSlider = nullptr;
+    ElaSlider* _voiceVolSlider = nullptr;
+    ElaToggleSwitch* _animSwitch = nullptr;
+    QLabel* _masterVolLabel = nullptr;
+    QLabel* _voiceVolLabel = nullptr;
+
+    QJsonObject _original;
+    bool _dirty = false;
+};
+
+#endif
diff --git a/src/ui/SettlementOverlay.cpp b/src/ui/SettlementOverlay.cpp
index 37bf799..0380e77 100644
--- a/src/ui/SettlementOverlay.cpp
+++ b/src/ui/SettlementOverlay.cpp
@@ -4,6 +4,7 @@
 #include "ElaPushButton.h"
 
 #include <QVBoxLayout>
+#include "SoundManager.h"
 #include <QHBoxLayout>
 #include <QLabel>
 #include <QPainter>
@@ -140,6 +141,7 @@ void SettlementOverlay::revealNextCard() {
         auto c = cards[_revealIdx].toObject();
         auto* cw = makeFlipCard(c);
         _cardRow->addWidget(cw);
+        SoundManager::instance().play("card_flip");
 
         _runningTotal += c["mp"].toInt();
         int target = _data["harmony"].toObject()["target"].toInt();
@@ -213,6 +215,7 @@ void SettlementOverlay::showPhaseResult() {
         _resultLabel->setText(ok ? QStringLiteral("调和成功 ✓") : QStringLiteral("调和失败 ✗"));
         _resultLabel->setStyleSheet(QStringLiteral("color:%1;font-size:24px;font-weight:bold;background:transparent;")
             .arg(ok ? S_SUCCESS.name() : S_DANGER.name()));
+        SoundManager::instance().play(ok ? "settle_harmony_ok" : "settle_harmony_fail");
     } else if (_phase == 1) {
         auto imprisoned = _data["challenge"].toObject()["imprisoned"].toArray();
         if (imprisoned.isEmpty()) {
@@ -228,18 +231,21 @@ void SettlementOverlay::showPhaseResult() {
                     names.append(pv.toObject()["nickname"].toString());
             _resultLabel->setText(QStringLiteral("🔒 被监禁: ") + names.join(QStringLiteral(", ")));
             _resultLabel->setStyleSheet(QStringLiteral("color:%1;font-size:20px;font-weight:bold;background:transparent;").arg(S_DANGER.name()));
+            SoundManager::instance().play("settle_prison");
         }
     } else if (_phase == 2) {
         auto v = _data["victory"].toObject();
         if (v["end_type"].toString() == "all_dead") {
             _resultLabel->setText(QStringLiteral("全灭结局 — 没有任何人获胜"));
             _resultLabel->setStyleSheet(QStringLiteral("color:%1;font-size:22px;font-weight:bold;background:transparent;").arg(S_DANGER.name()));
+            SoundManager::instance().play("settle_alldead");
         } else {
             QStringList names;
             for (const auto& wv : v["winners"].toArray())
                 names.append(wv.toObject()["nickname"].toString());
             _resultLabel->setText(QStringLiteral("🏆 获胜: ") + names.join(QStringLiteral(", ")));
             _resultLabel->setStyleSheet(QStringLiteral("color:%1;font-size:22px;font-weight:bold;background:transparent;").arg(S_GOLD.name()));
+            SoundManager::instance().play("settle_victory");
         }
         _nextBtn->setText(QStringLiteral("查看详情"));
     }
diff --git a/src/ui/SpectrumWidget.cpp b/src/ui/SpectrumWidget.cpp
new file mode 100644
index 0000000..a251582
--- /dev/null
+++ b/src/ui/SpectrumWidget.cpp
@@ -0,0 +1,65 @@
+#include "SpectrumWidget.h"
+#include <QPainter>
+#include <QLinearGradient>
+
+SpectrumWidget::SpectrumWidget(int barCount, QWidget* parent)
+    : QWidget(parent), _barCount(barCount), _current(barCount, 0), _peak(barCount, 0)
+{
+    setFixedSize(100, 26);
+    _decayTimer = new QTimer(this);
+    _decayTimer->setInterval(33);
+    connect(_decayTimer, &QTimer::timeout, this, [this]() {
+        bool anyActive = false;
+        for (int i = 0; i < _barCount; ++i) {
+            _peak[i] *= 0.88f;
+            if (_peak[i] < 0.01f) _peak[i] = 0;
+            else anyActive = true;
+        }
+        if (!anyActive) _decayTimer->stop();
+        update();
+    });
+}
+
+void SpectrumWidget::updateLevels(const QVector<float>& levels) {
+    for (int i = 0; i < _barCount && i < levels.size(); ++i) {
+        _current[i] = levels[i];
+        if (levels[i] > _peak[i]) _peak[i] = levels[i];
+    }
+    if (!_decayTimer->isActive()) _decayTimer->start();
+    update();
+}
+
+void SpectrumWidget::reset() {
+    _current.fill(0);
+    _peak.fill(0);
+    _decayTimer->stop();
+    update();
+}
+
+void SpectrumWidget::paintEvent(QPaintEvent*) {
+    QPainter p(this);
+    p.setRenderHint(QPainter::Antialiasing);
+
+    int w = width(), h = height();
+    qreal gap = 1.5;
+    qreal barW = (w - (_barCount - 1) * gap) / _barCount;
+
+    for (int i = 0; i < _barCount; ++i) {
+        qreal x = i * (barW + gap);
+        qreal level = qMin(1.0f, _peak[i]);
+        qreal barH = qMax(2.0, level * h);
+
+        QLinearGradient grad(0, h, 0, h - barH);
+        if (level > 0.01) {
+            grad.setColorAt(0, QColor(94, 179, 230, 200));
+            grad.setColorAt(1, QColor(92, 184, 92, 240));
+        } else {
+            grad.setColorAt(0, QColor(42, 48, 64, 100));
+            grad.setColorAt(1, QColor(42, 48, 64, 60));
+        }
+
+        p.setPen(Qt::NoPen);
+        p.setBrush(grad);
+        p.drawRoundedRect(QRectF(x, h - barH, barW, barH), 1.5, 1.5);
+    }
+}
diff --git a/src/ui/SpectrumWidget.h b/src/ui/SpectrumWidget.h
new file mode 100644
index 0000000..ca88ff1
--- /dev/null
+++ b/src/ui/SpectrumWidget.h
@@ -0,0 +1,25 @@
+#ifndef SPECTRUMWIDGET_H
+#define SPECTRUMWIDGET_H
+
+#include <QWidget>
+#include <QVector>
+#include <QTimer>
+
+class SpectrumWidget : public QWidget {
+    Q_OBJECT
+public:
+    explicit SpectrumWidget(int barCount = 12, QWidget* parent = nullptr);
+    void updateLevels(const QVector<float>& levels);
+    void reset();
+
+protected:
+    void paintEvent(QPaintEvent* event) override;
+
+private:
+    int _barCount;
+    QVector<float> _current;
+    QVector<float> _peak;
+    QTimer* _decayTimer = nullptr;
+};
+
+#endif
diff --git a/src/ui/VoiceSettingsDialog.cpp b/src/ui/VoiceSettingsDialog.cpp
deleted file mode 100644
index d8981e3..0000000
--- a/src/ui/VoiceSettingsDialog.cpp
+++ /dev/null
@@ -1,97 +0,0 @@
-#include "VoiceSettingsDialog.h"
-#include "VoiceManager.h"
-#include "ElaPushButton.h"
-
-#include <QVBoxLayout>
-#include <QHBoxLayout>
-#include <QLabel>
-#include <QComboBox>
-#include <QRadioButton>
-#include <QGroupBox>
-#include <QMediaDevices>
-#include <QAudioDevice>
-
-VoiceSettingsDialog::VoiceSettingsDialog(QWidget* parent)
-    : QDialog(parent)
-{
-    setWindowTitle(QStringLiteral("语音设置"));
-    setFixedSize(400, 340);
-    setStyleSheet("QDialog{background:#1a1f2e;} QLabel{color:#e0e0e0;} QGroupBox{color:#8a8f9d;border:1px solid #3a3f4e;border-radius:6px;margin-top:8px;padding-top:14px;} QGroupBox::title{subcontrol-origin:margin;left:10px;}");
-
-    auto* lay = new QVBoxLayout(this);
-    lay->setSpacing(12);
-
-    auto* inputGroup = new QGroupBox(QStringLiteral("输入设备 (麦克风)"), this);
-    auto* igLay = new QVBoxLayout(inputGroup);
-    _inputCombo = new QComboBox(inputGroup);
-    igLay->addWidget(_inputCombo);
-    lay->addWidget(inputGroup);
-
-    auto* outputGroup = new QGroupBox(QStringLiteral("输出设备 (扬声器)"), this);
-    auto* ogLay = new QVBoxLayout(outputGroup);
-    _outputCombo = new QComboBox(outputGroup);
-    ogLay->addWidget(_outputCombo);
-    lay->addWidget(outputGroup);
-
-    auto* modeGroup = new QGroupBox(QStringLiteral("说话模式"), this);
-    auto* mgLay = new QVBoxLayout(modeGroup);
-    _pttRadio = new QRadioButton(QStringLiteral("按住说话 (按住 V 键说话，松开停止)"), modeGroup);
-    _toggleRadio = new QRadioButton(QStringLiteral("按键切换 (按 V 键开始/停止说话)"), modeGroup);
-    _pttRadio->setStyleSheet("color:#e0e0e0;");
-    _toggleRadio->setStyleSheet("color:#e0e0e0;");
-    mgLay->addWidget(_pttRadio);
-    mgLay->addWidget(_toggleRadio);
-    lay->addWidget(modeGroup);
-
-    _statusLabel = new QLabel(this);
-    _statusLabel->setStyleSheet("color:#5eb3e6;font-size:12px;");
-    _statusLabel->setAlignment(Qt::AlignCenter);
-    lay->addWidget(_statusLabel);
-
-    auto* btnRow = new QHBoxLayout();
-    btnRow->addStretch();
-    auto* applyBtn = new ElaPushButton(QStringLiteral("应用"), this);
-    applyBtn->setFixedSize(80, 34);
-    connect(applyBtn, &ElaPushButton::clicked, this, &VoiceSettingsDialog::apply);
-    auto* closeBtn = new ElaPushButton(QStringLiteral("关闭"), this);
-    closeBtn->setFixedSize(80, 34);
-    connect(closeBtn, &ElaPushButton::clicked, this, &QDialog::close);
-    btnRow->addWidget(applyBtn);
-    btnRow->addWidget(closeBtn);
-    lay->addLayout(btnRow);
-
-    populate();
-}
-
-void VoiceSettingsDialog::populate() {
-    _inputCombo->clear();
-    for (const auto& dev : QMediaDevices::audioInputs())
-        _inputCombo->addItem(dev.description(), QVariant::fromValue(dev));
-    if (_inputCombo->count() == 0)
-        _inputCombo->addItem(QStringLiteral("(无可用设备)"));
-
-    _outputCombo->clear();
-    for (const auto& dev : QMediaDevices::audioOutputs())
-        _outputCombo->addItem(dev.description(), QVariant::fromValue(dev));
-    if (_outputCombo->count() == 0)
-        _outputCombo->addItem(QStringLiteral("(无可用设备)"));
-
-    auto& v = VoiceManager::instance();
-    _pttRadio->setChecked(v.mode() == VoiceManager::PushToTalk);
-    _toggleRadio->setChecked(v.mode() == VoiceManager::Toggle);
-
-    _statusLabel->setText(v.isActive() ? QStringLiteral("语音已启动") : QStringLiteral("语音未启动"));
-}
-
-void VoiceSettingsDialog::apply() {
-    auto& v = VoiceManager::instance();
-    v.setMode(_pttRadio->isChecked() ? VoiceManager::PushToTalk : VoiceManager::Toggle);
-
-    auto inDev = _inputCombo->currentData().value<QAudioDevice>();
-    auto outDev = _outputCombo->currentData().value<QAudioDevice>();
-    if (!inDev.isNull()) v.setInputDevice(inDev);
-    if (!outDev.isNull()) v.setOutputDevice(outDev);
-
-    if (!v.isActive()) v.start();
-    _statusLabel->setText(QStringLiteral("已应用，语音已启动"));
-}
diff --git a/src/ui/VoiceSettingsDialog.h b/src/ui/VoiceSettingsDialog.h
deleted file mode 100644
index df5406f..0000000
--- a/src/ui/VoiceSettingsDialog.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef VOICESETTINGSDIALOG_H
-#define VOICESETTINGSDIALOG_H
-
-#include <QDialog>
-
-class QComboBox;
-class QRadioButton;
-class QLabel;
-
-class VoiceSettingsDialog : public QDialog {
-    Q_OBJECT
-public:
-    explicit VoiceSettingsDialog(QWidget* parent = nullptr);
-
-private:
-    void populate();
-    void apply();
-
-    QComboBox* _inputCombo = nullptr;
-    QComboBox* _outputCombo = nullptr;
-    QRadioButton* _pttRadio = nullptr;
-    QRadioButton* _toggleRadio = nullptr;
-    QLabel* _statusLabel = nullptr;
-};
-
-#endif
diff --git a/src/voice/VoiceManager.cpp b/src/voice/VoiceManager.cpp
index be97199..29ab6f6 100644
--- a/src/voice/VoiceManager.cpp
+++ b/src/voice/VoiceManager.cpp
@@ -121,6 +121,20 @@ void VoiceManager::onCaptureReady() {
 
     if (!_muted && speaking)
         emit audioFrame(data);
+
+    const int BANDS = 12;
+    QVector<float> levels(BANDS, 0);
+    int samplesPerBand = qMax(1, samples / BANDS);
+    for (int b = 0; b < BANDS; ++b) {
+        double bandEnergy = 0;
+        int start = b * samplesPerBand;
+        int end = qMin(start + samplesPerBand, samples);
+        for (int i = start; i < end; ++i)
+            bandEnergy += double(pcm[i]) * pcm[i];
+        int count = end - start;
+        levels[b] = count > 0 ? float(std::sqrt(bandEnergy / count) / 16000.0) : 0;
+    }
+    emit spectrumData(levels);
 }
 
 void VoiceManager::processRemoteAudio(const QByteArray& frame) {
diff --git a/src/voice/VoiceManager.h b/src/voice/VoiceManager.h
index 66e65ff..41af068 100644
--- a/src/voice/VoiceManager.h
+++ b/src/voice/VoiceManager.h
@@ -42,6 +42,7 @@ signals:
     void localSpeaking(bool speaking);
     void remoteSpeaking(const QString& playerId, bool speaking);
     void mutedChanged(bool muted);
+    void spectrumData(const QVector<float>& levels);
 
 private:
     explicit VoiceManager(QObject* parent = nullptr);