diff --git a/Beta-0.1.1.py b/Beta-0.1.1.py
new file mode 100644
index 0000000..4d71959
--- /dev/null
+++ b/Beta-0.1.1.py
@@ -0,0 +1,283 @@
+import sys
+import requests
+from PyQt5.QtWidgets import (
+    QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
+    QTreeWidget, QTreeWidgetItem, QLineEdit, QLabel, QComboBox,
+    QPushButton, QSplitter, QTabWidget, QTextEdit, QMessageBox
+)
+from PyQt5.QtWebEngineWidgets import QWebEngineView
+from PyQt5.QtCore import Qt, QUrl, pyqtSignal, QThread
+from PyQt5.QtGui import QColor, QBrush
+
+# --- 配置区 ---
+# 你的 API 基础地址
+BASE_URL = "https://shanwogou.cn/audio/"
+API_URL = BASE_URL + "api.php"
+USER_API_URL = BASE_URL + "user_info_api.php"
+PLAY_URL_TEMPLATE = BASE_URL + "play.php?play={music_id}"
+
+# --- API 交互模块 ---
+def fetch_api_data(url, params=None):
+    """通用函数，用于发送 GET 请求并解析 JSON 响应"""
+    try:
+        response = requests.get(url, params=params, timeout=15)
+        response.raise_for_status()
+        return response.json()
+    except requests.exceptions.RequestException as e:
+        print(f"API 请求失败: {e}")
+        return None
+
+def get_all_music():
+    """获取所有音乐"""
+    return fetch_api_data(API_URL, params={"action": "getAllMusic"})
+
+def get_music_tags():
+    """获取所有音乐标签"""
+    return fetch_api_data(API_URL, params={"action": "getMusicTags"})
+
+def get_announcements():
+    """获取公告"""
+    return fetch_api_data(API_URL, params={"action": "getAnnouncements"})
+
+# --- 后台数据加载线程 ---
+class DataLoaderThread(QThread):
+    """后台线程，用于加载数据，防止UI卡顿"""
+    music_loaded_signal = pyqtSignal(dict)
+    tags_loaded_signal = pyqtSignal(dict)
+    announcements_loaded_signal = pyqtSignal(dict)
+
+    def run(self):
+        """线程执行函数"""
+        # 顺序加载数据
+        music_data = get_all_music()
+        self.music_loaded_signal.emit(music_data)
+
+        tags_data = get_music_tags()
+        self.tags_loaded_signal.emit(tags_data)
+        
+        announcements_data = get_announcements()
+        self.announcements_loaded_signal.emit(announcements_data)
+
+# --- 主窗口类 ---
+class SunsetMusicApp(QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.setWindowTitle("落日音乐 for PC")
+        self.setGeometry(100, 100, 1200, 700)
+        
+        # 数据存储
+        self.all_music = []
+        self.filtered_music = []
+        
+        # 初始化过滤条件属性（修复错误的关键）
+        self.current_keyword = ""
+        self.current_tag = "所有标签"
+
+        self._init_ui()
+        self._load_data_in_background()
+
+    def _init_ui(self):
+        """初始化用户界面"""
+        central_widget = QWidget()
+        self.setCentralWidget(central_widget)
+        main_layout = QVBoxLayout(central_widget)
+
+        # 1. 顶部控制区
+        top_control_layout = QHBoxLayout()
+        
+        # 搜索框
+        self.search_input = QLineEdit()
+        self.search_input.setPlaceholderText("输入关键词搜索...")
+        self.search_input.textChanged.connect(self._filter_music_by_search)
+        top_control_layout.addWidget(self.search_input)
+        
+        # 标签筛选下拉框
+        self.tag_combo = QComboBox()
+        self.tag_combo.addItem("所有标签")
+        self.tag_combo.currentIndexChanged.connect(self._filter_music_by_tag)
+        top_control_layout.addWidget(self.tag_combo)
+        
+        # 刷新按钮
+        refresh_button = QPushButton("刷新列表")
+        refresh_button.clicked.connect(self._load_data_in_background)
+        top_control_layout.addWidget(refresh_button)
+
+        main_layout.addLayout(top_control_layout)
+
+        # 2. 中部主内容区（分割窗口）
+        splitter = QSplitter(Qt.Horizontal)
+        
+        # 左侧音乐列表
+        self.music_tree = QTreeWidget()
+        self.music_tree.setColumnCount(4)
+        self.music_tree.setHeaderLabels(["ID", "标题", "艺术家", "标签"])
+        # 设置列宽
+        self.music_tree.setColumnWidth(0, 60)
+        self.music_tree.setColumnWidth(1, 350)
+        self.music_tree.setColumnWidth(2, 200)
+        self.music_tree.setColumnWidth(3, 120)
+        # 设置为单选
+        self.music_tree.setSelectionMode(QTreeWidget.SingleSelection)
+        self.music_tree.itemClicked.connect(self._on_music_item_clicked)
+        splitter.addWidget(self.music_tree)
+
+        # 右侧内容区（标签页）
+        self.right_tab_widget = QTabWidget()
+        
+        # 播放页签
+        self.play_web_view = QWebEngineView()
+        # 初始加载一个占位页面
+        self.play_web_view.setUrl(QUrl("about:blank"))
+        self.right_tab_widget.addTab(self.play_web_view, "播放器")
+        
+        # 公告页签
+        self.announcements_text = QTextEdit()
+        self.announcements_text.setReadOnly(True)
+        self.right_tab_widget.addTab(self.announcements_text, "公告")
+        
+        splitter.addWidget(self.right_tab_widget)
+        # 设置拉伸比例，让右侧占更多空间
+        splitter.setSizes([600, 800])
+
+        main_layout.addWidget(splitter)
+
+    def _load_data_in_background(self):
+        """启动后台线程加载数据"""
+        self._show_loading_indicator(True)
+        
+        self.loader_thread = DataLoaderThread()
+        self.loader_thread.music_loaded_signal.connect(self._on_music_data_loaded)
+        self.loader_thread.tags_loaded_signal.connect(self._on_tags_data_loaded)
+        self.loader_thread.announcements_loaded_signal.connect(self._on_announcements_data_loaded)
+        self.loader_thread.finished.connect(lambda: self._show_loading_indicator(False))
+        self.loader_thread.start()
+
+    def _show_loading_indicator(self, is_loading):
+        """显示或隐藏加载状态"""
+        if is_loading:
+            self.statusBar().showMessage("正在加载数据...")
+            self.setEnabled(False) # 禁用UI
+        else:
+            self.statusBar().clearMessage()
+            self.setEnabled(True) # 启用UI
+
+    def _on_music_data_loaded(self, data):
+        """处理加载完成的音乐数据"""
+        if data and data.get("success", False):
+            self.all_music = data.get("data", [])
+            self.filtered_music = self.all_music.copy()
+            self._populate_music_tree()
+            print(f"成功加载 {len(self.all_music)} 首音乐。")
+        else:
+            QMessageBox.warning(self, "警告", "音乐数据加载失败！")
+            print("音乐数据加载失败。")
+
+    def _on_tags_data_loaded(self, data):
+        """处理加载完成的标签数据"""
+        if data and data.get("success", False):
+            tags = data.get("data", [])
+            self.tag_combo.clear()
+            self.tag_combo.addItem("所有标签")
+            self.tag_combo.addItems(tags)
+            print(f"成功加载 {len(tags)} 个标签。")
+        else:
+            QMessageBox.warning(self, "警告", "标签数据加载失败！")
+            print("标签数据加载失败。")
+    
+    def _on_announcements_data_loaded(self, data):
+        """处理加载完成的公告数据"""
+        self.announcements_text.clear()
+        if data and data.get("success", False):
+            announcements = data.get("data", [])
+            for ann in announcements:
+                # 假设字段是 'nr' (内容) 和 'time' (时间)
+                content = ann.get("nr", "无内容")
+                time_str = ann.get("time", "未知时间")
+                self.announcements_text.append(f"【{time_str}】\n{content}\n")
+            print(f"成功加载 {len(announcements)} 条公告。")
+        else:
+            self.announcements_text.setText("公告加载失败或暂无公告。")
+            print("公告数据加载失败。")
+
+    def _populate_music_tree(self):
+        """将音乐数据填充到 TreeWidget 中"""
+        self.music_tree.clear()
+        for music in self.filtered_music:
+            item = QTreeWidgetItem([
+                str(music.get("id", "")),
+                music.get("title", "未知标题"),
+                music.get("artist", "未知艺术家"),
+                music.get("category", "未知标签")
+            ])
+            # 存储完整音乐对象，方便后续使用
+            item.setData(0, Qt.UserRole, music) 
+            self.music_tree.addTopLevelItem(item)
+
+    def _filter_music_by_search(self):
+        """根据搜索框内容过滤音乐列表"""
+        keyword = self.search_input.text().lower()
+        self._apply_filters(keyword=keyword)
+
+    def _filter_music_by_tag(self):
+        """根据选择的标签过滤音乐列表"""
+        selected_tag = self.tag_combo.currentText()
+        self._apply_filters(tag=selected_tag)
+
+    def _apply_filters(self, keyword=None, tag=None):
+        """应用所有过滤器（搜索词和标签）"""
+        # 使用类变量存储当前过滤条件
+        if keyword is not None:
+            self.current_keyword = keyword
+        if tag is not None:
+            self.current_tag = tag
+
+        filtered = [
+            music for music in self.all_music
+            if (self.current_tag == "所有标签" or music.get("category", "") == self.current_tag) and
+               (self.current_keyword == "" or self.current_keyword in music.get("title", "").lower() or
+                self.current_keyword in music.get("artist", "").lower() or
+                self.current_keyword in music.get("category", "").lower())
+        ]
+        
+        self.filtered_music = filtered
+        self._populate_music_tree()
+        self._highlight_search_results()
+
+    def _highlight_search_results(self):
+        """高亮显示搜索结果中的关键词"""
+        keyword = self.current_keyword
+        if not keyword:
+            return
+
+        # 注意：QTreeWidget本身不直接支持HTML格式，这里我们使用简单的颜色标记方式
+        for i in range(self.music_tree.topLevelItemCount()):
+            item = self.music_tree.topLevelItem(i)
+            for col in range(item.columnCount()):
+                text = item.text(col)
+                if keyword.lower() in text.lower():
+                    # 找到匹配项，设置背景色
+                    item.setBackground(col, QBrush(QColor(255, 255, 153)))  # 浅黄色背景
+                else:
+                    # 没有匹配项，恢复默认背景
+                    item.setBackground(col, QBrush(QColor(255, 255, 255)))
+
+    def _on_music_item_clicked(self, item, column):
+        """当音乐列表项被点击时，在播放器中加载对应的播放页面"""
+        music = item.data(0, Qt.UserRole)
+        if not music:
+            return
+            
+        music_id = music.get("id")
+        if music_id:
+            play_url = PLAY_URL_TEMPLATE.format(music_id=music_id)
+            self.play_web_view.setUrl(QUrl(play_url))
+            # 切换到播放器标签页
+            self.right_tab_widget.setCurrentIndex(0)
+            print(f"正在播放: {music.get('title')} URL: {play_url}")
+
+# --- 程序入口 ---
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+    window = SunsetMusicApp()
+    window.show()
+    sys.exit(app.exec_())
diff --git a/Beta-0.1.2.py b/Beta-0.1.2.py
new file mode 100644
index 0000000..15b01c6
--- /dev/null
+++ b/Beta-0.1.2.py
@@ -0,0 +1,725 @@
+import sys
+import requests
+import pygame
+import time
+import os
+from PyQt5.QtWidgets import (
+    QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
+    QTreeWidget, QTreeWidgetItem, QLineEdit, QLabel, QComboBox,
+    QPushButton, QSplitter, QTabWidget, QTextEdit, QMessageBox,
+    QFrame, QAction, QMenu, QSlider
+)
+from PyQt5.QtCore import Qt, pyqtSignal, QThread, QTimer, QObject
+from PyQt5.QtGui import QColor, QBrush
+
+# --- 初始化 pygame 音频模块 ---
+pygame.mixer.init()
+
+# --- 配置区 ---
+BASE_URL = "https://shanwogou.cn/audio/"
+API_URL = BASE_URL + "api.php"
+
+# --- API 交互模块 ---
+def fetch_api_data(url, params=None):
+    """通用 GET 请求函数，解析 JSON 响应"""
+    try:
+        response = requests.get(url, params=params, timeout=15)
+        response.raise_for_status()  # 触发 HTTP 错误（如 404/500）
+        return response.json()
+    except requests.exceptions.RequestException as e:
+        print(f"API 请求失败: {str(e)}")
+        return None
+
+def get_all_music():
+    """获取所有音乐"""
+    return fetch_api_data(API_URL, params={"action": "getAllMusic"})
+
+def get_music_tags():
+    """获取所有音乐标签"""
+    return fetch_api_data(API_URL, params={"action": "getMusicTags"})
+
+def get_announcements():
+    """获取公告列表"""
+    return fetch_api_data(API_URL, params={"action": "getAnnouncements"})
+
+def get_music_url(music_id):
+    """获取音乐的直接播放地址（mp3 链接）"""
+    return fetch_api_data(API_URL, params={"action": "getMusicUrl", "id": music_id})
+
+# --- 后台音频下载线程 ---
+class AudioDownloadThread(QThread):
+    """后台下载音频文件，下载完成后发送信号"""
+    download_finished = pyqtSignal(str, str)  # 信号：音乐标题、本地临时文件路径
+    download_failed = pyqtSignal(str)         # 信号：失败原因
+    download_progress = pyqtSignal(int)       # 信号：下载进度（0-100）
+
+    def __init__(self, music_id, music_title):
+        super().__init__()
+        self.music_id = music_id
+        self.music_title = music_title
+        self.is_canceled = False  # 取消下载标记
+
+    def run(self):
+        try:
+            # 1. 获取音乐的直接播放链接
+            music_url_data = get_music_url(self.music_id)
+            if not music_url_data or not music_url_data.get("success", False):
+                self.download_failed.emit("未获取到有效的播放链接")
+                return
+
+            play_url = music_url_data["data"].get("play_url")
+            if not play_url:
+                self.download_failed.emit("API 未返回直接播放地址（play_url）")
+                return
+
+            # 2. 下载音频文件到临时目录
+            temp_file = f"temp_{self.music_id}_{int(time.time())}.mp3"
+            response = requests.get(play_url, stream=True, timeout=20)
+            response.raise_for_status()
+
+            # 获取文件总大小（用于计算进度）
+            total_size = int(response.headers.get("content-length", 0))
+            downloaded_size = 0
+
+            with open(temp_file, "wb") as f:
+                for chunk in response.iter_content(chunk_size=8192):
+                    if self.is_canceled:  # 检查是否取消下载
+                        if os.path.exists(temp_file):
+                            os.remove(temp_file)
+                        self.download_failed.emit("下载已取消")
+                        return
+                    if chunk:
+                        f.write(chunk)
+                        downloaded_size += len(chunk)
+                        # 计算并发送进度（避免除零错误）
+                        if total_size > 0:
+                            progress = int((downloaded_size / total_size) * 100)
+                            self.download_progress.emit(progress)
+
+            # 3. 下载完成，发送信号
+            self.download_finished.emit(self.music_title, temp_file)
+
+        except Exception as e:
+            self.download_failed.emit(f"下载失败：{str(e)}")
+
+    def cancel_download(self):
+        """取消当前下载任务"""
+        self.is_canceled = True
+
+# --- 数据加载工作类（继承自QObject，支持moveToThread）---
+class DataLoadWorker(QObject):
+    """数据加载工作类（与主线程分离，避免UI卡顿）"""
+    music_loaded = pyqtSignal(dict)
+    tags_loaded = pyqtSignal(dict)
+    announcements_loaded = pyqtSignal(dict)
+    finished = pyqtSignal()
+
+    def run(self):
+        """加载音乐、标签、公告数据"""
+        # 1. 加载音乐
+        music_data = get_all_music()
+        self.music_loaded.emit(music_data)
+
+        # 2. 加载标签
+        tags_data = get_music_tags()
+        self.tags_loaded.emit(tags_data)
+
+        # 3. 加载公告
+        announcements_data = get_announcements()
+        self.announcements_loaded.emit(announcements_data)
+
+        # 4. 发送完成信号
+        self.finished.emit()
+
+# --- 主窗口类 ---
+class SunsetMusicApp(QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.setWindowTitle("Sunset Music for PC")
+        self.setGeometry(100, 100, 1200, 700)
+        self.setMinimumSize(1000, 600)  # 最小窗口尺寸
+
+        # 数据存储
+        self.all_music = []          # 所有音乐列表
+        self.filtered_music = []     # 筛选后音乐列表
+        self.current_playing_file = ""# 当前播放的本地音频文件路径
+        self.current_playing_music = None  # 当前播放的音乐信息（字典）
+        self.download_thread = None  # 音频下载线程实例
+        self.is_playing = False      # 播放状态标记
+
+        # 过滤条件初始化
+        self.current_keyword = ""
+        self.current_tag = "所有标签"
+
+        # 初始化 UI
+        self.init_ui()
+        # 加载音乐、标签、公告数据
+        self.load_data_in_background()
+        # 初始化播放进度定时器
+        self.init_playback_timer()
+
+    def init_ui(self):
+        """构建完整 UI 界面"""
+        central_widget = QWidget()
+        self.setCentralWidget(central_widget)
+        main_layout = QVBoxLayout(central_widget)
+
+        # 1. 菜单栏
+        self.create_menu_bar()
+
+        # 2. 顶部控制区（搜索+筛选+刷新）
+        top_control_layout = QHBoxLayout()
+        top_control_layout.setContentsMargins(10, 10, 10, 5)
+
+        # 搜索框
+        self.search_input = QLineEdit()
+        self.search_input.setPlaceholderText("搜索：标题/艺术家/标签...")
+        self.search_input.setFixedHeight(30)
+        self.search_input.textChanged.connect(self.filter_music_by_search)
+        top_control_layout.addWidget(self.search_input, stretch=3)
+
+        # 标签筛选下拉框
+        self.tag_combo = QComboBox()
+        self.tag_combo.addItem("所有标签")
+        self.tag_combo.setFixedHeight(30)
+        self.tag_combo.setFixedWidth(150)
+        self.tag_combo.currentIndexChanged.connect(self.filter_music_by_tag)
+        top_control_layout.addWidget(self.tag_combo, stretch=1)
+
+        # 刷新按钮
+        self.refresh_btn = QPushButton("刷新列表")
+        self.refresh_btn.setFixedHeight(30)
+        self.refresh_btn.setFixedWidth(100)
+        self.refresh_btn.clicked.connect(self.load_data_in_background)
+        top_control_layout.addWidget(self.refresh_btn, stretch=0)
+
+        main_layout.addLayout(top_control_layout)
+
+        # 3. 中部主内容区（分割窗口：音乐列表 + 右侧内容）
+        splitter = QSplitter(Qt.Horizontal)
+        splitter.setContentsMargins(10, 5, 10, 10)
+
+        # 3.1 左侧：音乐列表
+        self.music_tree = QTreeWidget()
+        self.music_tree.setColumnCount(5)
+        self.music_tree.setHeaderLabels(["ID", "标题", "艺术家", "标签", "时长"])
+        # 设置列宽
+        self.music_tree.setColumnWidth(0, 60)   # ID 列
+        self.music_tree.setColumnWidth(1, 350)  # 标题列
+        self.music_tree.setColumnWidth(2, 200)  # 艺术家列
+        self.music_tree.setColumnWidth(3, 120)  # 标签列
+        self.music_tree.setColumnWidth(4, 80)   # 时长列
+        # 单选模式 + 双击播放
+        self.music_tree.setSelectionMode(QTreeWidget.SingleSelection)
+        self.music_tree.itemDoubleClicked.connect(self.on_music_double_click)
+        splitter.addWidget(self.music_tree)
+
+        # 3.2 右侧：标签页（播放器 + 公告）
+        self.right_tab = QTabWidget()
+        self.right_tab.setMinimumWidth(500)
+
+        # 右侧1：播放器面板
+        self.player_panel = QWidget()
+        self.init_player_panel()  # 初始化播放控制UI
+        self.right_tab.addTab(self.player_panel, "音乐播放器")
+
+        # 右侧2：公告面板
+        self.announcement_panel = QTextEdit()
+        self.announcement_panel.setReadOnly(True)
+        self.announcement_panel.setStyleSheet("font-size: 14px; padding: 10px;")
+        self.right_tab.addTab(self.announcement_panel, "最新公告")
+
+        splitter.addWidget(self.right_tab)
+        splitter.setSizes([600, 600])  # 左右窗口比例
+        main_layout.addWidget(splitter, stretch=1)
+
+        # 4. 底部状态栏
+        self.status_bar = self.statusBar()
+        self.status_bar.showMessage("就绪：未播放音乐")
+
+    def create_menu_bar(self):
+        """创建菜单栏（文件+帮助）"""
+        menubar = self.menuBar()
+
+        # 文件菜单
+        file_menu = menubar.addMenu("文件")
+        exit_action = QAction("退出", self)
+        exit_action.setShortcut("Ctrl+Q")
+        exit_action.triggered.connect(self.close)
+        file_menu.addAction(exit_action)
+
+        # 帮助菜单
+        help_menu = menubar.addMenu("帮助")
+        about_action = QAction("关于", self)
+        about_action.triggered.connect(self.show_about_dialog)
+        help_menu.addAction(about_action)
+
+    def init_player_panel(self):
+        """初始化播放器面板"""
+        panel_layout = QVBoxLayout(self.player_panel)
+        panel_layout.setContentsMargins(20, 20, 20, 20)
+
+        # 1. 当前播放音乐信息
+        self.music_info_label = QLabel("当前未播放音乐")
+        self.music_info_label.setAlignment(Qt.AlignCenter)
+        self.music_info_label.setStyleSheet("""
+            font-size: 16px; 
+            font-weight: bold; 
+            color: #2c3e50; 
+            margin-bottom: 20px;
+        """)
+        panel_layout.addWidget(self.music_info_label)
+
+        # 2. 下载进度条（默认隐藏）
+        self.download_progress = QSlider(Qt.Horizontal)
+        self.download_progress.setRange(0, 100)
+        self.download_progress.setValue(0)
+        self.download_progress.setDisabled(True)
+        self.download_progress.setHidden(True)
+        panel_layout.addWidget(self.download_progress)
+
+        # 3. 播放进度条
+        self.play_progress = QSlider(Qt.Horizontal)
+        self.play_progress.setRange(0, 100)
+        self.play_progress.setValue(0)
+        self.play_progress.setDisabled(True)
+        self.play_progress.sliderReleased.connect(self.seek_playback)
+        panel_layout.addWidget(self.play_progress)
+
+        # 4. 时间显示（已播放/总时长）
+        time_layout = QHBoxLayout()
+        self.current_time_label = QLabel("00:00")
+        self.total_time_label = QLabel("00:00")
+        time_layout.addWidget(self.current_time_label)
+        time_layout.addStretch(1)
+        time_layout.addWidget(self.total_time_label)
+        panel_layout.addLayout(time_layout)
+
+        # 5. 播放控制按钮
+        control_layout = QHBoxLayout()
+        control_layout.setAlignment(Qt.AlignCenter)
+
+        self.prev_btn = QPushButton("上一曲")
+        self.prev_btn.setFixedSize(80, 40)
+        self.prev_btn.setDisabled(True)
+        self.prev_btn.clicked.connect(self.play_previous)
+        control_layout.addWidget(self.prev_btn)
+
+        self.play_pause_btn = QPushButton("播放")
+        self.play_pause_btn.setFixedSize(100, 40)
+        self.play_pause_btn.setDisabled(True)
+        self.play_pause_btn.clicked.connect(self.toggle_play_pause)
+        control_layout.addWidget(self.play_pause_btn)
+
+        self.next_btn = QPushButton("下一曲")
+        self.next_btn.setFixedSize(80, 40)
+        self.next_btn.setDisabled(True)
+        self.next_btn.clicked.connect(self.play_next)
+        control_layout.addWidget(self.next_btn)
+
+        panel_layout.addLayout(control_layout)
+
+    def init_playback_timer(self):
+        """初始化播放进度定时器"""
+        self.playback_timer = QTimer(self)
+        self.playback_timer.setInterval(1000)  # 1秒=1000毫秒
+        self.playback_timer.timeout.connect(self.update_playback_progress)
+
+    def show_about_dialog(self):
+        """显示关于对话框"""
+        QMessageBox.about(
+            self, "关于落日音乐",
+            "落日音乐 for PC（应用内播放版）\n\n"
+            "版本：1.0.0\n"
+            "核心功能：应用内直接播放、音乐筛选、公告查看"
+        )
+
+    # --- 数据加载相关函数 ---
+    def load_data_in_background(self):
+        """后台加载音乐、标签、公告数据"""
+        self.status_bar.showMessage("正在加载数据...")
+        self.set_widgets_enabled(False)  # 禁用UI控件
+
+        # 启动数据加载线程
+        self.data_thread = QThread()
+        self.data_worker = DataLoadWorker()
+        self.data_worker.moveToThread(self.data_thread)
+
+        # 连接线程信号
+        self.data_thread.started.connect(self.data_worker.run)
+        self.data_worker.music_loaded.connect(self.on_music_data_loaded)
+        self.data_worker.tags_loaded.connect(self.on_tags_data_loaded)
+        self.data_worker.announcements_loaded.connect(self.on_announcements_loaded)
+        self.data_worker.finished.connect(self.data_thread.quit)
+        self.data_worker.finished.connect(lambda: self.set_widgets_enabled(True))
+        self.data_worker.finished.connect(lambda: self.status_bar.showMessage("数据加载完成"))
+
+        self.data_thread.start()
+
+    def set_widgets_enabled(self, enabled):
+        """设置核心UI控件是否可用"""
+        self.search_input.setEnabled(enabled)
+        self.tag_combo.setEnabled(enabled)
+        self.refresh_btn.setEnabled(enabled)
+        self.music_tree.setEnabled(enabled)
+
+    def on_music_data_loaded(self, music_data):
+        """音乐数据加载完成后的处理"""
+        if not music_data or not music_data.get("success", False):
+            QMessageBox.warning(self, "警告", "音乐数据加载失败！")
+            return
+
+        self.all_music = music_data["data"]
+        self.filtered_music = self.all_music.copy()
+        self.populate_music_tree()  # 填充音乐列表
+        self.status_bar.showMessage(f"加载完成：共 {len(self.all_music)} 首音乐")
+
+    def on_tags_data_loaded(self, tags_data):
+        """标签数据加载完成后的处理"""
+        if not tags_data or not tags_data.get("success", False):
+            QMessageBox.warning(self, "警告", "标签数据加载失败！")
+            return
+
+        tags = tags_data["data"]
+        current_tag = self.tag_combo.currentText()
+        self.tag_combo.clear()
+        self.tag_combo.addItem("所有标签")
+        self.tag_combo.addItems(tags)
+
+        # 恢复之前选择的标签
+        if current_tag in tags:
+            self.tag_combo.setCurrentText(current_tag)
+
+    def on_announcements_loaded(self, announcements_data):
+        """公告数据加载完成后的处理"""
+        self.announcement_panel.clear()
+        if not announcements_data or not announcements_data.get("success", False):
+            self.announcement_panel.setText("公告加载失败或暂无公告")
+            return
+
+        announcements = announcements_data["data"]
+        for ann in announcements:
+            time_str = ann.get("time", "未知时间")
+            content = ann.get("nr", "无公告内容")
+            self.announcement_panel.append(f"【{time_str}】\n{content}\n" + "-"*50 + "\n")
+
+    def populate_music_tree(self):
+        """将音乐数据填充到 TreeWidget 列表中"""
+        self.music_tree.clear()
+        for idx, music in enumerate(self.filtered_music):
+            # 格式化时长
+            duration = music.get("duration", "")
+            try:
+                duration_sec = int(duration)
+                duration_str = f"{duration_sec//60:02d}:{duration_sec%60:02d}"
+            except:
+                duration_str = "未知"
+
+            # 创建列表项
+            item = QTreeWidgetItem([
+                str(music.get("id", "未知")),
+                music.get("title", "未知标题"),
+                music.get("artist", "未知艺术家"),
+                music.get("category", "未知标签"),
+                duration_str
+            ])
+            # 存储完整音乐信息
+            item.setData(0, Qt.UserRole, music)
+            # 交替行颜色
+            if idx % 2 == 0:
+                item.setBackground(0, QBrush(QColor(245, 245, 245)))
+                item.setBackground(1, QBrush(QColor(245, 245, 245)))
+                item.setBackground(2, QBrush(QColor(245, 245, 245)))
+                item.setBackground(3, QBrush(QColor(245, 245, 245)))
+                item.setBackground(4, QBrush(QColor(245, 245, 245)))
+
+            self.music_tree.addTopLevelItem(item)
+
+    # --- 音乐筛选相关函数 ---
+    def filter_music_by_search(self):
+        """根据搜索关键词筛选音乐"""
+        self.current_keyword = self.search_input.text().lower()
+        self.apply_music_filters()
+
+    def filter_music_by_tag(self):
+        """根据标签筛选音乐"""
+        self.current_tag = self.tag_combo.currentText()
+        self.apply_music_filters()
+
+    def apply_music_filters(self):
+        """应用筛选条件（关键词+标签）"""
+        self.filtered_music = [
+            music for music in self.all_music
+            if (self.current_tag == "所有标签" or music.get("category", "") == self.current_tag)
+            and (
+                self.current_keyword in music.get("title", "").lower()
+                or self.current_keyword in music.get("artist", "").lower()
+                or self.current_keyword in music.get("category", "").lower()
+            )
+        ]
+        self.populate_music_tree()
+        self.highlight_search_keyword()
+
+    def highlight_search_keyword(self):
+        """高亮音乐列表中的搜索关键词"""
+        if not self.current_keyword:
+            return
+
+        # 遍历所有列表项，匹配关键词并高亮
+        for idx in range(self.music_tree.topLevelItemCount()):
+            item = self.music_tree.topLevelItem(idx)
+            for col in range(1, 4):  # 只高亮 标题、艺术家、标签 列
+                text = item.text(col).lower()
+                if self.current_keyword in text:
+                    item.setBackground(col, QBrush(QColor(255, 255, 153)))  # 浅黄色高亮
+                else:
+                    # 恢复交替行颜色
+                    if idx % 2 == 0:
+                        item.setBackground(col, QBrush(QColor(245, 245, 245)))
+                    else:
+                        item.setBackground(col, QBrush(QColor(255, 255, 255)))
+
+    # --- 音乐播放相关函数 ---
+    def on_music_double_click(self, item, column):
+        """双击音乐列表项：停止当前播放→下载新音乐→播放"""
+        # 获取当前选中的音乐信息
+        music = item.data(0, Qt.UserRole)
+        if not music:
+            return
+
+        # 1. 停止当前播放（如果有）
+        self.stop_playback()
+
+        # 2. 取消正在进行的下载（如果有）
+        if self.download_thread and self.download_thread.isRunning():
+            self.download_thread.cancel_download()
+            self.download_thread.wait()
+
+        # 3. 记录当前播放的音乐信息
+        self.current_playing_music = music
+        music_id = music.get("id")
+        music_title = music.get("title", "未知音乐")
+        music_artist = music.get("artist", "未知艺术家")
+
+        # 4. 更新UI显示
+        self.music_info_label.setText(f"{music_title} - {music_artist}")
+        self.status_bar.showMessage(f"准备播放：{music_title}")
+
+        # 5. 启动后台下载线程
+        self.download_thread = AudioDownloadThread(music_id, music_title)
+        # 连接下载信号
+        self.download_thread.download_progress.connect(self.update_download_progress)
+        self.download_thread.download_finished.connect(self.on_audio_downloaded)
+        self.download_thread.download_failed.connect(self.on_download_failed)
+        # 显示下载进度条
+        self.download_progress.setHidden(False)
+        self.download_progress.setDisabled(False)
+        # 启动下载
+        self.download_thread.start()
+
+    def update_download_progress(self, progress):
+        """更新下载进度条"""
+        self.download_progress.setValue(progress)
+        self.status_bar.showMessage(f"正在下载：{self.current_playing_music['title']}（{progress}%）")
+
+    def on_audio_downloaded(self, music_title, local_file):
+        """音频下载完成，开始播放"""
+        # 隐藏下载进度条
+        self.download_progress.setHidden(True)
+        self.download_progress.setDisabled(True)
+        self.download_progress.setValue(0)
+
+        # 记录当前播放的本地文件路径
+        self.current_playing_file = local_file
+
+        # 尝试播放音频
+        try:
+            pygame.mixer.music.load(local_file)
+            pygame.mixer.music.play()
+            self.is_playing = True
+
+            # 更新UI状态
+            self.play_pause_btn.setText("暂停")
+            self.play_pause_btn.setEnabled(True)
+            self.prev_btn.setEnabled(True)
+            self.next_btn.setEnabled(True)
+            self.play_progress.setDisabled(False)
+
+            # 记录总时长并更新时间显示
+            total_duration = pygame.mixer.Sound(local_file).get_length()  # 秒
+            self.total_duration = total_duration
+            self.total_time_label.setText(self.format_time(total_duration))
+
+            # 启动播放进度定时器
+            self.playback_timer.start()
+            self.status_bar.showMessage(f"正在播放：{music_title}")
+
+        except Exception as e:
+            self.on_download_failed(f"播放失败：{str(e)}")
+
+    def on_download_failed(self, error_msg):
+        """下载或播放失败的处理"""
+        # 重置UI
+        self.download_progress.setHidden(True)
+        self.download_progress.setDisabled(True)
+        self.download_progress.setValue(0)
+        self.music_info_label.setText("播放失败")
+        self.status_bar.showMessage(f"错误：{error_msg}")
+
+        # 弹出错误提示
+        QMessageBox.warning(self, "播放错误", error_msg)
+
+    def toggle_play_pause(self):
+        """切换播放/暂停状态"""
+        if not self.current_playing_file:
+            return
+
+        if self.is_playing:
+            pygame.mixer.music.pause()
+            self.is_playing = False
+            self.play_pause_btn.setText("播放")
+            self.playback_timer.stop()
+            self.status_bar.showMessage(f"已暂停：{self.current_playing_music['title']}")
+        else:
+            pygame.mixer.music.unpause()
+            self.is_playing = True
+            self.play_pause_btn.setText("暂停")
+            self.playback_timer.start()
+            self.status_bar.showMessage(f"继续播放：{self.current_playing_music['title']}")
+
+    def stop_playback(self):
+        """停止当前播放"""
+        if pygame.mixer.music.get_busy() or self.is_playing:
+            pygame.mixer.music.stop()
+            self.is_playing = False
+
+        # 重置UI
+        self.playback_timer.stop()
+        self.play_progress.setValue(0)
+        self.current_time_label.setText("00:00")
+        self.total_time_label.setText("00:00")
+        self.play_pause_btn.setText("播放")
+        self.play_pause_btn.setEnabled(False)
+        self.prev_btn.setEnabled(False)
+        self.next_btn.setEnabled(False)
+
+        # 删除临时音频文件
+        if self.current_playing_file and os.path.exists(self.current_playing_file):
+            try:
+                os.remove(self.current_playing_file)
+            except:
+                pass  # 若文件被占用，忽略删除
+        self.current_playing_file = ""
+        self.current_playing_music = None
+
+    def update_playback_progress(self):
+        """更新播放进度条和时间显示"""
+        if not self.current_playing_file or not self.is_playing:
+            return
+
+        # 获取当前播放位置（秒）
+        current_pos = pygame.mixer.music.get_pos() / 1000  # 毫秒转秒
+        # 计算进度百分比
+        progress = int((current_pos / self.total_duration) * 100)
+        progress = min(progress, 100)  # 避免超过100%
+
+        # 更新UI
+        self.play_progress.setValue(progress)
+        self.current_time_label.setText(self.format_time(current_pos))
+
+        # 检查是否播放完成
+        if current_pos >= self.total_duration:
+            self.stop_playback()
+            self.status_bar.showMessage("播放完成：已停止")
+
+    def seek_playback(self):
+        """拖动进度条跳转播放位置"""
+        if not self.current_playing_file or not self.is_playing:
+            return
+
+        # 获取进度条百分比对应的播放位置（秒）
+        progress = self.play_progress.value()
+        target_pos = (progress / 100) * self.total_duration
+        # 跳转播放位置
+        pygame.mixer.music.set_pos(target_pos)
+        # 更新时间显示
+        self.current_time_label.setText(self.format_time(target_pos))
+
+    def play_previous(self):
+        """播放上一曲"""
+        if not self.current_playing_music or len(self.filtered_music) <= 1:
+            return
+
+        # 找到当前播放音乐在筛选列表中的索引
+        current_idx = -1
+        current_id = self.current_playing_music.get("id")
+        for idx, music in enumerate(self.filtered_music):
+            if str(music.get("id")) == str(current_id):
+                current_idx = idx
+                break
+
+        # 播放前一项（循环到最后一项如果当前是第一项）
+        if current_idx == 0:
+            target_idx = len(self.filtered_music) - 1
+        else:
+            target_idx = current_idx - 1
+
+        # 触发双击播放
+        target_item = self.music_tree.topLevelItem(target_idx)
+        self.on_music_double_click(target_item, 0)
+
+    def play_next(self):
+        """播放下一曲"""
+        if not self.current_playing_music or len(self.filtered_music) <= 1:
+            return
+
+        # 找到当前播放音乐在筛选列表中的索引
+        current_idx = -1
+        current_id = self.current_playing_music.get("id")
+        for idx, music in enumerate(self.filtered_music):
+            if str(music.get("id")) == str(current_id):
+                current_idx = idx
+                break
+
+        # 播放后一项（循环到第一项如果当前是最后一项）
+        if current_idx == len(self.filtered_music) - 1:
+            target_idx = 0
+        else:
+            target_idx = current_idx + 1
+
+        # 触发双击播放
+        target_item = self.music_tree.topLevelItem(target_idx)
+        self.on_music_double_click(target_item, 0)
+
+    @staticmethod
+    def format_time(seconds):
+        """将秒数格式化为 分:秒"""
+        minutes = int(seconds // 60)
+        secs = int(seconds % 60)
+        return f"{minutes:02d}:{secs:02d}"
+
+    def closeEvent(self, event):
+        """窗口关闭时的清理操作"""
+        # 停止播放
+        self.stop_playback()
+        # 退出 pygame
+        pygame.mixer.quit()
+        # 关闭线程
+        if hasattr(self, "download_thread") and self.download_thread.isRunning():
+            self.download_thread.cancel_download()
+            self.download_thread.wait()
+        event.accept()
+
+# --- 程序入口 ---
+if __name__ == "__main__":
+    # 解决 PyQt5 中文显示问题
+    QApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
+    app = QApplication(sys.argv)
+    
+    # 设置全局样式
+    app.setStyle("Fusion")
+    
+    # 启动应用
+    window = SunsetMusicApp()
+    window.show()
+    sys.exit(app.exec_())