原代码：

# -*- coding: utf-8 -*-

################################################################################
## Form generated from reading UI file '帝国时代登录界面.ui'
##
## Created by: Qt User Interface Compiler version 6.8.1
##
## WARNING! All changes made in this file will be lost when recompiling UI file!
################################################################################

from PySide6.QtCore import (QCoreApplication, QDate, QDateTime, QLocale,
    QMetaObject, QObject, QPoint, QRect,
    QSize, QTime, QUrl, Qt)
from PySide6.QtGui import (QBrush, QColor, QConicalGradient, QCursor,
    QFont, QFontDatabase, QGradient, QIcon,
    QImage, QKeySequence, QLinearGradient, QPainter,
    QPalette, QPixmap, QRadialGradient, QTransform)
from PySide6.QtWidgets import (QApplication, QFrame, QLabel, QLineEdit,
    QMainWindow, QPushButton, QSizePolicy, QStatusBar,
    QWidget)
import res_rc

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        if not MainWindow.objectName():
            MainWindow.setObjectName(u"MainWindow")
        MainWindow.resize(1000, 582)
        MainWindow.setMinimumSize(QSize(0, 0))
        MainWindow.setMaximumSize(QSize(1000, 582))
        MainWindow.setStyleSheet(u"QMainWindow {\n"
"    border-radius: 20px; \n"
"    background-color: rgba(0, 0, 0, 0.8); \n"
"}")
        self.centralwidget = QWidget(MainWindow)
        self.centralwidget.setObjectName(u"centralwidget")
        self.centralwidget.setMinimumSize(QSize(1000, 562))
        self.centralwidget.setMaximumSize(QSize(1000, 562))
        self.centralwidget.setStyleSheet(u"Lay Out in a Vertical Layout\n"
"border-image: url(:/age_.gif);")
        self.frame = QFrame(self.centralwidget)
        self.frame.setObjectName(u"frame")
        self.frame.setGeometry(QRect(0, 0, 1001, 571))
        self.frame.setStyleSheet(u"QFrame {\n"
"    border-radius: 20px;\n"
"    background-color: rgba(0, 0, 0, 0);\n"
"}")
        self.password = QLineEdit(self.frame)
        self.password.setObjectName(u"password")
        self.password.setGeometry(QRect(350, 380, 321, 31))
        self.password.setStyleSheet(u"            QLineEdit {\n"
"                background-color: rgba(255, 255, 255, 0.3);  /* \u534a\u900f\u660e */\n"
"                border-width: 0 0 1px 0; /* \u5206\u522b\u8bbe\u7f6e\u4e0a\u3001\u53f3\u3001\u4e0b\u3001\u5de6\u8fb9\u6846\u7684\u5bbd\u5ea6\uff0c\u8fd9\u91cc\u4e0b\u8fb9\u6846\u4e3a1px\uff0c\u5176\u4ed6\u4e3a0 */\n"
"                border-style: none none solid none; /* \u5206\u522b\u8bbe\u7f6e\u4e0a\u3001\u53f3\u3001\u4e0b\u3001\u5de6\u8fb9\u6846\u7684\u6837\u5f0f\uff0c\u8fd9\u91cc\u4e0b\u8fb9\u6846\u4e3a\u5b9e\u7ebf\uff0c\u5176\u4ed6\u4e3a\u65e0\u6837\u5f0f */\n"
"                border-color: transparent transparent white transparent; /* \u5206\u522b\u8bbe\u7f6e\u4e0a\u3001\u53f3\u3001\u4e0b\u3001\u5de6\u8fb9\u6846\u7684\u989c\u8272\uff0c\u8fd9\u91cc\u4e0b\u8fb9\u6846\u4e3a\u767d\u8272\uff0c\u5176\u4ed6\u4e3a\u900f\u660e\u8272 */\n"
"                color: white;  /* \u5b57\u4f53\u989c\u8272\u767d\u8272 */\n"
"                font-size: 15px;  /* \u5b57\u4f53\u5927\u5c0f */\n"
"           "
                        "     padding: 5px;\n"
"            }")
        self.title_label = QLabel(self.frame)
        self.title_label.setObjectName(u"title_label")
        self.title_label.setGeometry(QRect(60, 90, 881, 151))
        self.title_label.setStyleSheet(u"QLabel {\n"
"    font-size: 100px;\n"
"    font-weight: bold;\n"
"    color: white;\n"
"}")
        self.title_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
        self.age_gif = QLabel(self.frame)
        self.age_gif.setObjectName(u"age_gif")
        self.age_gif.setGeometry(QRect(0, 0, 1000, 562))
        self.age_gif.setMinimumSize(QSize(1000, 562))
        self.age_gif.setMaximumSize(QSize(1000, 562))
        self.age_gif.setStyleSheet(u"border-radius: 20px;\n"
"background-color: rgba(0, 0, 0, 0.8);")
        self.male_Button = QPushButton(self.frame)
        self.male_Button.setObjectName(u"male_Button")
        self.male_Button.setGeometry(QRect(530, 430, 51, 51))
        self.male_Button.setStyleSheet(u"QPushButton {\n"
"	border-image: url(:/Returnofrome_male_villager_icon.png);\n"
"    border-repeat: no-repeat; \n"
"    border-position: center; \n"
"	border-size: 1px;\n"
"    border-radius: 15px;\n"
"    border: none; \n"
"    padding: 0px; \n"
"}")
        self.login_button = QPushButton(self.frame)
        self.login_button.setObjectName(u"login_button")
        self.login_button.setGeometry(QRect(350, 490, 151, 41))
        self.login_button.setStyleSheet(u"            QPushButton {\n"
"                background: qlineargradient(\n"
"                    spread: pad, \n"
"                    x1: 0, y1: 0, x2: 1, y2: 0,\n"
"                    stop: 0 rgba(0, 0, 255, 0.8), stop: 1 rgba(255, 0, 0, 0.8)\n"
"                );\n"
"                color: white;\n"
"                font-size: 18px;\n"
"                border: 0px solid white;\n"
"                border-radius: 10px;\n"
"                padding: 10px;\n"
"            }\n"
"            QPushButton:hover {\n"
"                background: qlineargradient(\n"
"                    spread: pad, \n"
"                    x1: 0, y1: 0, x2: 1, y2: 0, \n"
"                    stop: 0 rgba(173, 216, 230, 0.8), stop: 1 rgba(240, 128, 128, 0.8)\n"
"                );\n"
"            }")
        self.female_Button = QPushButton(self.frame)
        self.female_Button.setObjectName(u"female_Button")
        self.female_Button.setGeometry(QRect(600, 430, 51, 51))
        self.female_Button.setStyleSheet(u"QPushButton {\n"
"	border-image: url(:/Returnofrome_female_villager_icon.png);\n"
"    background-repeat: no-repeat; \n"
"    background-position: center; \n"
"	background-size: 1px;\n"
"    border-radius: 15px;\n"
"    border: none; \n"
"    padding: 0px; \n"
"}")
        self.username = QLineEdit(self.frame)
        self.username.setObjectName(u"username")
        self.username.setGeometry(QRect(350, 330, 321, 31))
        self.username.setStyleSheet(u"            QLineEdit {\n"
"                background-color: rgba(255, 255, 255, 0.3);  /* \u534a\u900f\u660e */\n"
"                border-width: 0 0 1px 0; /* \u5206\u522b\u8bbe\u7f6e\u4e0a\u3001\u53f3\u3001\u4e0b\u3001\u5de6\u8fb9\u6846\u7684\u5bbd\u5ea6\uff0c\u8fd9\u91cc\u4e0b\u8fb9\u6846\u4e3a1px\uff0c\u5176\u4ed6\u4e3a0 */\n"
"                border-style: none none solid none; /* \u5206\u522b\u8bbe\u7f6e\u4e0a\u3001\u53f3\u3001\u4e0b\u3001\u5de6\u8fb9\u6846\u7684\u6837\u5f0f\uff0c\u8fd9\u91cc\u4e0b\u8fb9\u6846\u4e3a\u5b9e\u7ebf\uff0c\u5176\u4ed6\u4e3a\u65e0\u6837\u5f0f */\n"
"                border-color: transparent transparent white transparent; /* \u5206\u522b\u8bbe\u7f6e\u4e0a\u3001\u53f3\u3001\u4e0b\u3001\u5de6\u8fb9\u6846\u7684\u989c\u8272\uff0c\u8fd9\u91cc\u4e0b\u8fb9\u6846\u4e3a\u767d\u8272\uff0c\u5176\u4ed6\u4e3a\u900f\u660e\u8272 */\n"
"                color: white;  /* \u5b57\u4f53\u989c\u8272\u767d\u8272 */\n"
"                font-size: 15px;  /* \u5b57\u4f53\u5927\u5c0f */\n"
"           "
                        "     padding: 5px;\n"
"            }")
        self.Gender = QLabel(self.frame)
        self.Gender.setObjectName(u"Gender")
        self.Gender.setGeometry(QRect(350, 440, 211, 31))
        font = QFont()
        font.setFamilies([u"Microsoft YaHei UI"])
        font.setKerning(True)
        self.Gender.setFont(font)
        self.Gender.setStyleSheet(u"font-size: 18px; color: white")
        self.cancel_button = QPushButton(self.frame)
        self.cancel_button.setObjectName(u"cancel_button")
        self.cancel_button.setGeometry(QRect(520, 490, 151, 41))
        self.cancel_button.setStyleSheet(u"            QPushButton {\n"
"                background: qlineargradient(\n"
"                    spread: pad, \n"
"                    x1: 0, y1: 0, x2: 1, y2: 0,\n"
"                    stop: 0 rgba(0, 0, 255, 0.8), stop: 1 rgba(255, 0, 0, 0.8)\n"
"                );\n"
"                color: white;\n"
"                font-size: 18px;\n"
"                border: 0px solid white;\n"
"                border-radius: 10px;\n"
"                padding: 10px;\n"
"            }\n"
"            QPushButton:hover {\n"
"                background: qlineargradient(\n"
"                    spread: pad, \n"
"                    x1: 0, y1: 0, x2: 1, y2: 0, \n"
"                    stop: 0 rgba(173, 216, 230, 0.8), stop: 1 rgba(240, 128, 128, 0.8)\n"
"                );\n"
"            }")
        self.age_gif.raise_()
        self.Gender.raise_()
        self.password.raise_()
        self.title_label.raise_()
        self.male_Button.raise_()
        self.login_button.raise_()
        self.female_Button.raise_()
        self.username.raise_()
        self.cancel_button.raise_()
        MainWindow.setCentralWidget(self.centralwidget)
        self.statusbar = QStatusBar(MainWindow)
        self.statusbar.setObjectName(u"statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)

        QMetaObject.connectSlotsByName(MainWindow)
    # setupUi

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(QCoreApplication.translate("MainWindow", u"\u5e1d\u56fd\u65f6\u4ee3 - \u767b\u5f55", None))
        self.password.setText("")
        self.password.setPlaceholderText(QCoreApplication.translate("MainWindow", u"\u8bf7\u8f93\u5165\u5bc6\u7801", None))
        self.title_label.setText(QCoreApplication.translate("MainWindow", u"\u6b22\u8fce\u6765\u5230\u5e1d\u56fd\u65f6\u4ee3", None))
        self.age_gif.setText(QCoreApplication.translate("MainWindow", u"<html><head/><body><p><img src=\":/age_.gif\"/></p></body></html>", None))
        self.male_Button.setText("")
        self.login_button.setText(QCoreApplication.translate("MainWindow", u"\u767b\u5f55", None))
#if QT_CONFIG(tooltip)
        self.female_Button.setToolTip(QCoreApplication.translate("MainWindow", u"<html><head/><body><p><br/></p></body></html>", None))
#endif // QT_CONFIG(tooltip)
        self.female_Button.setText(QCoreApplication.translate("MainWindow", u"\u5973", None))
        self.username.setText("")
        self.username.setPlaceholderText(QCoreApplication.translate("MainWindow", u"\u8bf7\u8f93\u5165\u7528\u6237\u540d", None))
        self.Gender.setText(QCoreApplication.translate("MainWindow", u"\u9009\u62e9\u6027\u522b: \u672a\u9009\u62e9", None))
        self.cancel_button.setText(QCoreApplication.translate("MainWindow", u"\u53d6\u6d88", None))
    # retranslateUi

import sys
import os
import subprocess
from PySide6.QtWidgets import QApplication, QMainWindow, QMessageBox, QLineEdit, QPushButton, QLabel, QVBoxLayout, QWidget
from PySide6.QtCore import Qt, Slot
from PySide6.QtGui import QIcon, QMovie

from login_ui import Ui_MainWindow  # 导入 UI 文件

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        # 初始化 UI
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

        # 设置无边框窗口和圆角
        self.setWindowFlags(Qt.FramelessWindowHint)
        self.setAttribute(Qt.WA_TranslucentBackground)

        # 设置应用图标
        self.setWindowIcon(QIcon("ReturnRome-AoEIcon.png"))

        # 使用 QMovie 播放背景动图
        self.movie = QMovie(":/age_.gif")  # 确保资源路径正确
        self.ui.age_gif.setMovie(self.movie)
        self.movie.start()

        # 设置登录按钮的点击事件
        self.ui.login_button.clicked.connect(self.handle_login)

        # 设置 male 和 female 按钮点击事件
        self.ui.male_Button.clicked.connect(self.select_male)
        self.ui.female_Button.clicked.connect(self.select_female)

        # 设置取消按钮点击事件
        self.ui.cancel_button.clicked.connect(self.close)  # 关闭窗口

        # 创建用户名和密码输入框
        self.username_input = self.ui.username  # 使用 UI 中的 username 输入框
        self.password_input = self.ui.password  # 使用 UI 中的 password 输入框

        # 设置密码框为密码输入模式
        self.password_input.setEchoMode(QLineEdit.Password)

    @Slot()
    def handle_login(self):
        """处理登录事件"""
        username = self.username_input.text()
        password = self.password_input.text()

        # 验证用户名和密码
        if username == "admin" and password == "123456":
            # 登录成功，关闭当前界面并启动游戏
            QMessageBox.information(self, "登录成功", "欢迎进入帝国时代！")
            self.close()

            # 启动游戏程序
            game_path = r"D:\steam\steamapps\common\AoEDE\AoEDE_s.exe"
            if os.path.exists(game_path):  # 检查文件路径是否存在
                subprocess.Popen(game_path)  # 启动游戏
            else:
                QMessageBox.warning(self, "错误", "游戏文件未找到！")
        else:
            # 登录失败，显示错误信息并清空输入框
            QMessageBox.warning(self, "登录失败", "用户名或密码错误！")
            self.username_input.clear()
            self.password_input.clear()

    def select_male(self):
        """选择男性按钮事件"""
        self.ui.Gender.setText("选择性别: 男")

    def select_female(self):
        """选择女性按钮事件"""
        self.ui.Gender.setText("选择性别: 女")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())