diff --git a/banbenjietu.png b/banbenjietu.png
index c090d6e..9ae94f2 100644
Binary files a/banbenjietu.png and b/banbenjietu.png differ
diff --git a/gui/main_window.py b/gui/main_window.py
index fc0af90..40f845f 100644
--- a/gui/main_window.py
+++ b/gui/main_window.py
@@ -10,6 +10,8 @@ from PyQt5.QtWidgets import (QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
 from PyQt5.QtCore import Qt, QTimer, QThread, pyqtSignal
 from PyQt5.QtGui import QIcon, QPixmap
 import time
+import requests
+from urllib.parse import quote
 
 sys.path.append(str(Path(__file__).parent.parent))
 
@@ -152,6 +154,150 @@ class UpdateWorker(QThread):
         except Exception as e:
             self.finished.emit((False, False, str(e)))
 
+class DownloadProgressDialog(QDialog):
+    """下载进度对话框"""
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setWindowTitle("正在下载更新")
+        self.setFixedSize(400, 300)
+        self.setWindowFlags(Qt.Dialog | Qt.CustomizeWindowHint | Qt.WindowTitleHint)
+        
+        layout = QVBoxLayout()
+        
+        # 添加图标
+        icon_label = QLabel()
+        icon_label.setPixmap(self.style().standardIcon(QStyle.SP_DesktopIcon).pixmap(32, 32))
+        icon_label.setAlignment(Qt.AlignCenter)
+        layout.addWidget(icon_label)
+        
+        # 下载状态标签
+        self.status_label = QLabel("正在连接服务器...")
+        self.status_label.setAlignment(Qt.AlignCenter)
+        self.status_label.setStyleSheet("""
+            color: #0d6efd;
+            font-size: 14px;
+            font-weight: bold;
+            padding: 10px;
+        """)
+        layout.addWidget(self.status_label)
+        
+        # 进度条
+        self.progress_bar = QProgressBar()
+        self.progress_bar.setStyleSheet("""
+            QProgressBar {
+                border: 2px solid #e9ecef;
+                border-radius: 5px;
+                text-align: center;
+                min-height: 20px;
+                background-color: #f8f9fa;
+            }
+            QProgressBar::chunk {
+                background-color: #0d6efd;
+                border-radius: 3px;
+            }
+        """)
+        layout.addWidget(self.progress_bar)
+        
+        # 下载信息框
+        info_frame = QFrame()
+        info_frame.setStyleSheet("""
+            QFrame {
+                background-color: #f8f9fa;
+                border-radius: 8px;
+                border: 1px solid #dee2e6;
+                margin: 10px;
+                padding: 20px;
+            }
+            QLabel {
+                color: #495057;
+                font-size: 14px;
+                padding: 8px;
+                margin: 2px;
+                background: white;
+                border-radius: 4px;
+                border: 1px solid #e9ecef;
+            }
+        """)
+        info_layout = QVBoxLayout(info_frame)
+        info_layout.setSpacing(10)  # 增加标签之间的间距
+        
+        # 下载速度
+        self.speed_label = QLabel("下载速度: --")
+        self.speed_label.setMinimumHeight(35)  # 设置最小高度
+        info_layout.addWidget(self.speed_label)
+        
+        # 文件大小
+        self.size_label = QLabel("文件大小: --")
+        self.size_label.setMinimumHeight(35)  # 设置最小高度
+        info_layout.addWidget(self.size_label)
+        
+        # 预计剩余时间
+        self.time_label = QLabel("预计剩余时间: --")
+        self.time_label.setMinimumHeight(35)  # 设置最小高度
+        info_layout.addWidget(self.time_label)
+        
+        layout.addWidget(info_frame)
+        
+        self.setLayout(layout)
+        
+        # 初始化变量
+        self.start_time = time.time()
+        self.last_update_time = time.time()
+        self.last_downloaded = 0
+        
+    def update_progress(self, downloaded_size, total_size):
+        """更新进度信息"""
+        if total_size > 0:
+            percentage = (downloaded_size / total_size) * 100
+            self.progress_bar.setValue(int(percentage))
+            
+            # 计算下载速度
+            current_time = time.time()
+            time_diff = current_time - self.last_update_time
+            if time_diff >= 0.5:  # 每0.5秒更新一次
+                speed = (downloaded_size - self.last_downloaded) / time_diff
+                self.last_downloaded = downloaded_size
+                self.last_update_time = current_time
+                
+                # 更新下载信息
+                speed_text = self._format_speed(speed)
+                self.speed_label.setText(f"下载速度: {speed_text}")
+                
+                # 更新文件大小信息
+                total_mb = total_size / (1024 * 1024)
+                downloaded_mb = downloaded_size / (1024 * 1024)
+                self.size_label.setText(f"文件大小: {downloaded_mb:.1f} MB / {total_mb:.1f} MB")
+                
+                # 更新预计剩余时间
+                if speed > 0:
+                    remaining_bytes = total_size - downloaded_size
+                    remaining_time = remaining_bytes / speed
+                    time_text = self._format_time(remaining_time)
+                    self.time_label.setText(f"预计剩余时间: {time_text}")
+                
+                # 更新状态文本
+                self.status_label.setText(f"正在下载更新... {percentage:.1f}%")
+                
+    def _format_speed(self, speed_bytes):
+        """格式化速度显示"""
+        if speed_bytes > 1024 * 1024:
+            return f"{speed_bytes / (1024 * 1024):.1f} MB/s"
+        elif speed_bytes > 1024:
+            return f"{speed_bytes / 1024:.1f} KB/s"
+        else:
+            return f"{speed_bytes:.1f} B/s"
+            
+    def _format_time(self, seconds):
+        """格式化时间显示"""
+        if seconds < 60:
+            return f"{seconds:.0f}秒"
+        elif seconds < 3600:
+            minutes = seconds / 60
+            return f"{minutes:.0f}分钟"
+        else:
+            hours = seconds / 3600
+            return f"{hours:.1f}小时"
+
 class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
@@ -787,7 +933,6 @@ class MainWindow(QMainWindow):
                     border-radius: 4px;
                     font-size: 13px;
                     min-width: 100px;
-                    margin: 10px;
                 }
                 QPushButton:hover {
                     background-color: #bb2d3b;
@@ -1623,33 +1768,222 @@ class MainWindow(QMainWindow):
             return
             
         try:
-            # 创建下载目录
-            download_dir = Path.home() / "Downloads" / "CursorHelper"
+            # 创建下载目录（优先使用D盘，如果不存在则使用当前程序目录）
+            if Path("D:/").exists():
+                download_dir = Path("D:/CursorHelper/updates")
+            else:
+                download_dir = Path(__file__).parent.parent / "updates"
             download_dir.mkdir(parents=True, exist_ok=True)
             
             # 下载文件名
             file_name = download_url.split('/')[-1]
             save_path = download_dir / file_name
             
-            self.show_loading_dialog("正在下载更新...")
+            # 创建并显示进度对话框
+            progress_dialog = DownloadProgressDialog(self)
+            progress_dialog.show()
             
             # 开始下载
-            success, message = self.version_manager.download_update(download_url, str(save_path))
-            self.hide_loading_dialog()
-            
-            if success:
-                self.show_custom_message(
-                    "下载完成",
-                    "更新包下载成功",
-                    f"更新包已下载到：\n{save_path}\n\n请关闭程序后运行更新包完成更新。",
-                    QStyle.SP_DialogApplyButton,
-                    "#198754"
+            try:
+                # 处理下载地址中的中文字符
+                url_parts = download_url.split('/')
+                url_parts[-1] = quote(url_parts[-1])
+                encoded_url = '/'.join(url_parts)
+                
+                # 设置请求头
+                headers = {
+                    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36',
+                    'Accept': '*/*',
+                    'Accept-Encoding': 'gzip, deflate, br',
+                    'Connection': 'keep-alive'
+                }
+                
+                response = requests.get(
+                    encoded_url,
+                    stream=True,
+                    headers=headers,
+                    timeout=30
                 )
-                # 退出程序
-                self.quit_application()
-            else:
-                self.show_custom_error("下载失败", message)
+                response.raise_for_status()
+                
+                # 获取文件大小
+                total_size = int(response.headers.get('content-length', 0))
+                if total_size == 0:
+                    progress_dialog.hide()
+                    self.show_custom_error("下载失败", "无法获取文件大小，下载地址可能无效")
+                    return False, "无法获取文件大小"
+                
+                # 更新进度条范围
+                progress_dialog.progress_bar.setRange(0, 100)
+                
+                # 下载文件
+                downloaded_size = 0
+                block_size = 8192
+                
+                with open(save_path, 'wb') as f:
+                    for chunk in response.iter_content(chunk_size=block_size):
+                        if chunk:
+                            f.write(chunk)
+                            downloaded_size += len(chunk)
+                            # 更新进度
+                            progress_dialog.update_progress(downloaded_size, total_size)
+                            QApplication.processEvents()  # 保持界面响应
+                
+                # 验证文件大小
+                actual_size = os.path.getsize(save_path)
+                if actual_size != total_size:
+                    progress_dialog.hide()
+                    os.remove(save_path)
+                    self.show_custom_error("下载失败", "文件下载不完整，请重试")
+                    return False, "文件下载不完整"
+                
+                progress_dialog.hide()
+                
+                # 显示下载完成对话框
+                self._show_download_complete_dialog(save_path)
+                return True, "下载成功"
+                
+            except requests.exceptions.Timeout:
+                progress_dialog.hide()
+                self.show_custom_error("下载失败", "下载超时，请检查网络连接后重试")
+                return False, "下载超时"
+            except requests.exceptions.RequestException as e:
+                progress_dialog.hide()
+                self.show_custom_error("下载失败", f"下载出错: {str(e)}")
+                return False, str(e)
+            except Exception as e:
+                progress_dialog.hide()
+                self.show_custom_error("下载失败", f"下载过程中发生错误: {str(e)}")
+                return False, str(e)
                 
         except Exception as e:
-            self.hide_loading_dialog()
-            self.show_custom_error("下载失败", f"下载更新时发生错误: {str(e)}")
\ No newline at end of file
+            self.show_custom_error("下载失败", f"下载更新时发生错误: {str(e)}")
+            return False, str(e)
+            
+    def _show_download_complete_dialog(self, save_path):
+        """显示下载完成对话框"""
+        # 创建自定义消息框
+        msg = QDialog(self)
+        msg.setWindowTitle("下载完成")
+        msg.setFixedWidth(500)
+        msg.setWindowFlags(msg.windowFlags() & ~Qt.WindowContextHelpButtonHint)
+        
+        layout = QVBoxLayout()
+        
+        # 添加图标
+        icon_label = QLabel()
+        icon_label.setPixmap(self.style().standardIcon(QStyle.SP_DialogApplyButton).pixmap(32, 32))
+        icon_label.setAlignment(Qt.AlignCenter)
+        layout.addWidget(icon_label)
+        
+        # 添加标题
+        title_label = QLabel("更新包下载成功")
+        title_label.setAlignment(Qt.AlignCenter)
+        title_label.setStyleSheet("""
+            font-size: 16px;
+            font-weight: bold;
+            color: #198754;
+            padding: 10px;
+        """)
+        layout.addWidget(title_label)
+        
+        # 添加文件信息框
+        info_frame = QFrame()
+        info_frame.setStyleSheet("""
+            QFrame {
+                background-color: #f8f9fa;
+                border-radius: 8px;
+                border: 1px solid #dee2e6;
+                margin: 10px;
+                padding: 15px;
+            }
+            QLabel {
+                color: #333333;
+                font-size: 14px;
+                padding: 5px;
+            }
+        """)
+        info_layout = QVBoxLayout(info_frame)
+        
+        # 文件路径
+        path_label = QLabel(f"文件保存在：\n{save_path}")
+        path_label.setWordWrap(True)
+        path_label.setTextInteractionFlags(Qt.TextSelectableByMouse)
+        info_layout.addWidget(path_label)
+        
+        # 文件大小
+        size_mb = save_path.stat().st_size / (1024 * 1024)
+        size_label = QLabel(f"文件大小：{size_mb:.2f} MB")
+        info_layout.addWidget(size_label)
+        
+        layout.addWidget(info_frame)
+        
+        # 提示信息
+        tip_label = QLabel("请关闭程序后运行更新包完成更新。")
+        tip_label.setStyleSheet("color: #dc3545; font-weight: bold; padding: 10px;")
+        layout.addWidget(tip_label)
+        
+        # 按钮区域
+        btn_layout = QHBoxLayout()
+        
+        # 打开文件按钮
+        open_file_btn = QPushButton("打开文件")
+        open_file_btn.setStyleSheet("""
+            QPushButton {
+                background-color: #0d6efd;
+                color: white;
+                border: none;
+                padding: 8px 20px;
+                border-radius: 4px;
+                font-size: 13px;
+                min-width: 100px;
+            }
+            QPushButton:hover {
+                background-color: #0b5ed7;
+            }
+        """)
+        open_file_btn.clicked.connect(lambda: os.startfile(str(save_path)))
+        btn_layout.addWidget(open_file_btn)
+        
+        # 打开文件夹按钮
+        open_dir_btn = QPushButton("打开文件夹")
+        open_dir_btn.setStyleSheet("""
+            QPushButton {
+                background-color: #198754;
+                color: white;
+                border: none;
+                padding: 8px 20px;
+                border-radius: 4px;
+                font-size: 13px;
+                min-width: 100px;
+            }
+            QPushButton:hover {
+                background-color: #157347;
+            }
+        """)
+        open_dir_btn.clicked.connect(lambda: os.startfile(str(save_path.parent)))
+        btn_layout.addWidget(open_dir_btn)
+        
+        # 退出按钮
+        quit_btn = QPushButton("立即退出")
+        quit_btn.setStyleSheet("""
+            QPushButton {
+                background-color: #dc3545;
+                color: white;
+                border: none;
+                padding: 8px 20px;
+                border-radius: 4px;
+                font-size: 13px;
+                min-width: 100px;
+                font-weight: bold;
+            }
+            QPushButton:hover {
+                background-color: #bb2d3b;
+            }
+        """)
+        quit_btn.clicked.connect(lambda: (msg.accept(), self.quit_application()))
+        btn_layout.addWidget(quit_btn)
+        
+        layout.addLayout(btn_layout)
+        msg.setLayout(layout)
+        msg.exec_()
\ No newline at end of file