diff --git a/MainForm.cs b/MainForm.cs
new file mode 100644
index 0000000..be87601
--- /dev/null
+++ b/MainForm.cs
@@ -0,0 +1,994 @@
+/*
+ * MyCSharpProject - Shanxue-Education-Points-Coin-Converter
+ * Copyright (C) 2026 ZerkyLiu
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+using System;
+using System.Drawing;
+using System.Globalization;
+using System.Net;
+using System.Net.Sockets;
+using System.IO;
+using System.Diagnostics;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace 善学教育积分卡汇率计算器
+{
+    public class MainForm : Form
+    {
+        private static readonly decimal[] RatePoints = { 500m, 1000m, 1500m, 2000m, 2500m, 3000m, 3500m, 4000m };
+        private static readonly decimal[] RateRmb = { 10m, 20m, 35m, 45m, 60m, 75m, 85m, 100m };
+        private static readonly string[] Zodiac = { "鼠", "牛", "虎", "兔", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪" };
+        private static readonly string[] NtpServers = { "ntp.aliyun.com", "ntp.ntsc.ac.cn", "pool.ntp.org" };
+        private static readonly string RateTextHorizontal = BuildRateText(true);
+        private static readonly string RateTextVertical = BuildRateText(false);
+        private readonly Label _currencyLabel;
+        private readonly Label _timeLabel;
+        private readonly Label _timeSourceLabel;
+        private readonly CheckBox _topMostToggle;
+        private readonly Button _aboutButton;
+        private readonly Label _inputLabel;
+        private readonly Label _rmbLabel;
+        private readonly TextBox _pointsInput;
+        private readonly Label _rmbOutput;
+        private readonly Label _rateLabel;
+        private readonly Timer _clockTimer;
+        private readonly Timer _syncTimer;
+        private readonly Timer _fallbackTopMostTimer;
+        private DateTime _currentTime;
+        private string _timeSource;
+        private IntPtr _uiAccessDll;
+        private string? _uiAccessDllPath;
+        private IsUIAccessDelegate? _isUiAccess;
+        private bool _uiAccessEnabled;
+        private bool _usingFallbackTopMost;
+        private bool _usingUiAccessTopMost;
+        private bool _suppressPointsTextChange;
+        private readonly bool _forceFallbackTopMost;
+        private const string UiAccessRelaunchArg = "--uiaccess-relaunch";
+        private const string UiAccessResourceSuffix = ".dll.uiaccess.dll";
+        private const string IconResourceSuffix = ".ico.logo_256x256.ico";
+        private float _rmbOutputBaseFontSize;
+
+        public MainForm()
+        {
+            Text = "善学教育积分卡汇率计算器";
+            StartPosition = FormStartPosition.CenterScreen;
+            ClientSize = new Size(640, 730);
+            MinimumSize = SizeFromClientSize(ClientSize);
+            Font = new Font("Microsoft YaHei UI", 10F);
+            BackColor = Color.WhiteSmoke;
+            AutoScaleMode = AutoScaleMode.Dpi;
+            DoubleBuffered = true;
+            SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint, true);
+
+            var layout = new TableLayoutPanel
+            {
+                Dock = DockStyle.Fill,
+                ColumnCount = 1,
+                RowCount = 4,
+                Padding = new Padding(28),
+            };
+            layout.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
+            layout.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+            layout.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+            layout.RowStyles.Add(new RowStyle(SizeType.Percent, 100F));
+            layout.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+
+            _currencyLabel = new Label
+            {
+                AutoSize = true,
+                Font = new Font("Microsoft YaHei UI", 18F, FontStyle.Bold),
+                ForeColor = Color.FromArgb(38, 50, 56),
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleLeft
+            };
+            layout.Controls.Add(_currencyLabel, 0, 0);
+
+            _timeLabel = new Label
+            {
+                AutoSize = true,
+                ForeColor = Color.FromArgb(55, 71, 79),
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleLeft
+            };
+
+            _topMostToggle = new CheckBox
+            {
+                Text = "超级置顶",
+                AutoSize = true,
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleRight
+            };
+            _topMostToggle.CheckedChanged += (_, __) => ApplyTopMost(_topMostToggle.Checked);
+
+            _aboutButton = new Button
+            {
+                Text = "关于",
+                AutoSize = true,
+                Dock = DockStyle.Fill
+            };
+            _aboutButton.Click += (_, __) => ShowAboutDialog();
+
+            _timeSourceLabel = new Label
+            {
+                AutoSize = true,
+                ForeColor = Color.FromArgb(96, 125, 139),
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleLeft
+            };
+            var rightPanel = new TableLayoutPanel
+            {
+                Dock = DockStyle.Fill,
+                ColumnCount = 1,
+                RowCount = 2,
+                AutoSize = true
+            };
+            rightPanel.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));
+            rightPanel.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+            rightPanel.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+            rightPanel.Controls.Add(_aboutButton, 0, 0);
+            rightPanel.Controls.Add(_topMostToggle, 0, 1);
+            var timeRow = new TableLayoutPanel
+            {
+                Dock = DockStyle.Fill,
+                ColumnCount = 2,
+                RowCount = 1,
+                AutoSize = true
+            };
+            timeRow.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
+            timeRow.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));
+            timeRow.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+            timeRow.Controls.Add(_timeLabel, 0, 0);
+            timeRow.Controls.Add(rightPanel, 1, 0);
+            var timePanel = new TableLayoutPanel
+            {
+                Dock = DockStyle.Fill,
+                ColumnCount = 1,
+                RowCount = 2,
+                AutoSize = true
+            };
+            timePanel.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100F));
+            timePanel.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+            timePanel.RowStyles.Add(new RowStyle(SizeType.AutoSize));
+            timePanel.Controls.Add(timeRow, 0, 0);
+            timePanel.Controls.Add(_timeSourceLabel, 0, 1);
+            layout.Controls.Add(timePanel, 0, 1);
+
+            _inputLabel = new Label
+            {
+                Text = "输入积分币数量",
+                AutoSize = true,
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleLeft
+            };
+
+            _pointsInput = new TextBox
+            {
+                Dock = DockStyle.Fill,
+                TextAlign = HorizontalAlignment.Left,
+                ImeMode = ImeMode.Disable
+            };
+            _pointsInput.TextChanged += PointsInputOnTextChanged;
+            _pointsInput.KeyPress += PointsInputOnKeyPress;
+            _rmbLabel = new Label
+            {
+                Text = "换算人民币（元）",
+                AutoSize = true,
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleLeft
+            };
+
+            _rmbOutput = new Label
+            {
+                Text = "0.00",
+                AutoSize = true,
+                Font = new Font("Microsoft YaHei UI", 22F, FontStyle.Bold),
+                ForeColor = Color.FromArgb(0, 150, 136),
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleCenter
+            };
+            var convLayout = new TableLayoutPanel
+            {
+                Dock = DockStyle.Fill,
+                ColumnCount = 2,
+                RowCount = 2,
+                AutoSize = false
+            };
+            convLayout.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 40F));
+            convLayout.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 60F));
+            convLayout.RowStyles.Add(new RowStyle(SizeType.Percent, 50F));
+            convLayout.RowStyles.Add(new RowStyle(SizeType.Percent, 50F));
+            convLayout.Controls.Add(_inputLabel, 0, 0);
+            convLayout.Controls.Add(_pointsInput, 1, 0);
+            convLayout.Controls.Add(_rmbLabel, 0, 1);
+            convLayout.Controls.Add(_rmbOutput, 1, 1);
+            layout.Controls.Add(convLayout, 0, 2);
+
+            _rateLabel = new Label
+            {
+                Text = GetRateText(true),
+                AutoSize = true,
+                ForeColor = Color.FromArgb(96, 125, 139),
+                Dock = DockStyle.Fill,
+                TextAlign = ContentAlignment.MiddleLeft
+            };
+            layout.Controls.Add(_rateLabel, 0, 3);
+            Controls.Add(layout);
+
+            _timeSource = "本地";
+            _currentTime = DateTime.Now;
+
+            _clockTimer = new Timer { Interval = 1000 };
+            _clockTimer.Tick += ClockTimerOnTick;
+
+            _syncTimer = new Timer { Interval = 10 * 60 * 1000 };
+            _syncTimer.Tick += async (_, __) => await SyncNetworkTimeAsync();
+            
+            _fallbackTopMostTimer = new Timer { Interval = 1 };
+            _fallbackTopMostTimer.Tick += (_, __) => ApplyFallbackTopMostTick();
+            _forceFallbackTopMost = IsWin7OrLower();
+
+            ClientSizeChanged += (_, __) => { UpdateRateLayout(); UpdateResponsiveFonts(); UpdateConversion(); };
+            Shown += (_, __) => _ = InitializeAsync();
+        }
+
+        private Task InitializeAsync()
+        {
+            TryInitializeIcon();
+            TryInitializeUiAccess();
+            if (TryRelaunchWithUiAccess())
+            {
+                return Task.CompletedTask;
+            }
+            UpdateTimeLabels();
+            UpdateRateLayout();
+            UpdateResponsiveFonts();
+            UpdateConversion();
+            StartInputFocus();
+            _ = SyncNetworkTimeAsync();
+            _clockTimer.Start();
+            _syncTimer.Start();
+            return Task.CompletedTask;
+        }
+
+        private void UpdateRateLayout()
+        {
+            var horizontal = ClientSize.Width >= 720;
+            _rateLabel.MaximumSize = new Size(Math.Max(0, ClientSize.Width - 120), 0);
+            _rateLabel.Text = horizontal ? RateTextHorizontal : RateTextVertical;
+        }
+
+        private void UpdateResponsiveFonts()
+        {
+            var w = ClientSize.Width;
+            var h = ClientSize.Height;
+            var resultSize = (float)Math.Max(24, Math.Min(w * 0.06, h * 0.08));
+            var inputSize = (float)Math.Max(12, Math.Min(w * 0.03, h * 0.04));
+            _rmbOutputBaseFontSize = resultSize;
+            _rmbOutput.Font = new Font("Microsoft YaHei UI", resultSize, FontStyle.Bold);
+            _pointsInput.Font = new Font("Microsoft YaHei UI", inputSize, FontStyle.Regular);
+        }
+        private static string GetRateText(bool horizontal)
+        {
+            return horizontal ? RateTextHorizontal : RateTextVertical;
+        }
+
+        private static string BuildRateText(bool horizontal)
+        {
+            var header = "汇率：";
+            if (horizontal)
+            {
+                var text = header;
+                for (var i = 0; i < RatePoints.Length; i++)
+                {
+                    text += $"{RatePoints[i]}币={RateRmb[i]}";
+                    if (i < RatePoints.Length - 1)
+                    {
+                        text += "，";
+                    }
+                }
+
+                return text;
+            }
+
+            var newline = Environment.NewLine;
+            var multi = header + newline;
+            for (var i = 0; i < RatePoints.Length; i++)
+            {
+                multi += $"{RatePoints[i]}币={RateRmb[i]}";
+                if (i < RatePoints.Length - 1)
+                {
+                    multi += newline;
+                }
+            }
+
+            return multi;
+        }
+
+        private void UpdateTimeLabels()
+        {
+            var timeText = _currentTime.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
+            _timeLabel.Text = $"当前时间：{timeText}";
+            _timeSourceLabel.Text = $"时间来源：{_timeSource}";
+            _currencyLabel.Text = $"当前积分币：{GetZodiacCurrency(_currentTime)}";
+        }
+
+        private void ClockTimerOnTick(object? sender, EventArgs e)
+        {
+            _currentTime = _currentTime.AddSeconds(1);
+            UpdateTimeLabels();
+        }
+
+        private async Task SyncNetworkTimeAsync()
+        {
+            var networkTime = await Task.Run(TryGetNetworkTime);
+            if (networkTime.HasValue)
+            {
+                _currentTime = networkTime.Value.ToLocalTime();
+                _timeSource = "NTP时间服务器";
+            }
+            else
+            {
+                _currentTime = DateTime.Now;
+                _timeSource = "本地";
+            }
+
+            UpdateTimeLabels();
+        }
+
+        private static DateTime? TryGetNetworkTime()
+        {
+            foreach (var server in NtpServers)
+            {
+                try
+                {
+                    var ntpData = new byte[48];
+                    ntpData[0] = 0x1B;
+                    var addresses = Dns.GetHostEntry(server).AddressList;
+                    foreach (var address in addresses)
+                    {
+                        if (address.AddressFamily != AddressFamily.InterNetwork)
+                        {
+                            continue;
+                        }
+
+                        var ipEndPoint = new IPEndPoint(address, 123);
+                        using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
+                        {
+                            socket.ReceiveTimeout = 1500;
+                            socket.SendTimeout = 1500;
+                            socket.Connect(ipEndPoint);
+                            socket.Send(ntpData);
+                            socket.Receive(ntpData);
+                        }
+
+                        const byte serverReplyTime = 40;
+                        var intPart = BitConverter.ToUInt32(ntpData, serverReplyTime);
+                        var fractPart = BitConverter.ToUInt32(ntpData, serverReplyTime + 4);
+                        intPart = SwapEndianness(intPart);
+                        fractPart = SwapEndianness(fractPart);
+
+                        var milliseconds = (intPart * 1000L) + ((fractPart * 1000L) / 0x100000000L);
+                        var networkDateTime = new DateTime(1900, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds(milliseconds);
+                        return networkDateTime;
+                    }
+                }
+                catch
+                {
+                    continue;
+                }
+            }
+
+            return null;
+        }
+
+        private static uint SwapEndianness(uint x)
+        {
+            return (x & 0x000000FFU) << 24 | (x & 0x0000FF00U) << 8 | (x & 0x00FF0000U) >> 8 | (x & 0xFF000000U) >> 24;
+        }
+
+        private static string GetZodiacCurrency(DateTime time)
+        {
+            var index = Mod(time.Year - 2020, 12);
+            return $"{Zodiac[index]}币";
+        }
+
+        private static int Mod(int x, int m)
+        {
+            var r = x % m;
+            return r < 0 ? r + m : r;
+        }
+
+        private void StartInputFocus()
+        {
+            if (!IsHandleCreated)
+            {
+                return;
+            }
+
+            BeginInvoke(new Action(() =>
+            {
+                ActiveControl = _pointsInput;
+                _pointsInput.Focus();
+                _pointsInput.SelectionStart = _pointsInput.TextLength;
+            }));
+        }
+
+        private static bool IsWin7OrLower()
+        {
+            var version = Environment.OSVersion.Version;
+            return version.Major < 6 || (version.Major == 6 && version.Minor <= 1);
+        }
+
+        private void PointsInputOnTextChanged(object? sender, EventArgs e)
+        {
+            if (_suppressPointsTextChange)
+            {
+                return;
+            }
+
+            var rawText = _pointsInput.Text;
+            var filteredText = new string(rawText.Where(char.IsDigit).ToArray());
+            if (!string.Equals(rawText, filteredText, StringComparison.Ordinal))
+            {
+                var selectionStart = _pointsInput.SelectionStart;
+                var removedCount = rawText.Length - filteredText.Length;
+                _suppressPointsTextChange = true;
+                _pointsInput.Text = filteredText;
+                _pointsInput.SelectionStart = Math.Max(0, Math.Min(filteredText.Length, selectionStart - removedCount));
+                _suppressPointsTextChange = false;
+            }
+
+            UpdateConversion();
+        }
+
+        private void PointsInputOnKeyPress(object? sender, KeyPressEventArgs e)
+        {
+            if (char.IsControl(e.KeyChar) || char.IsDigit(e.KeyChar))
+            {
+                return;
+            }
+
+            e.Handled = true;
+        }
+
+        private void UpdateConversion()
+        {
+            var rawText = _pointsInput.Text.Trim();
+            if (string.IsNullOrEmpty(rawText))
+            {
+                SetRmbOutputText("0.00", GetRmbOutputBaseSize());
+                return;
+            }
+
+            if (!decimal.TryParse(rawText, out var points))
+            {
+                SetRmbOutputText("TL", GetRmbOutputBaseSize());
+                return;
+            }
+
+            if (points <= 0)
+            {
+                SetRmbOutputText("0.00", GetRmbOutputBaseSize());
+                return;
+            }
+
+            try
+            {
+                var rmb = ConvertPointsToRmb(points);
+                if (rmb < 0.01m)
+                {
+                    SetRmbOutputText("0.00", GetRmbOutputBaseSize());
+                    return;
+                }
+
+                UpdateRmbDisplay(rmb);
+            }
+            catch
+            {
+                SetRmbOutputText("TL", GetRmbOutputBaseSize());
+            }
+        }
+
+        private static decimal ConvertPointsToRmb(decimal points)
+        {
+            var pointSteps = new[] { 0m, RatePoints[0], RatePoints[1], RatePoints[2], RatePoints[3], RatePoints[4], RatePoints[5], RatePoints[6], RatePoints[7] };
+            var rmbSteps = new[] { 0m, RateRmb[0], RateRmb[1], RateRmb[2], RateRmb[3], RateRmb[4], RateRmb[5], RateRmb[6], RateRmb[7] };
+
+            if (points <= pointSteps[0])
+            {
+                return 0m;
+            }
+
+            if (points >= pointSteps[pointSteps.Length - 1])
+            {
+                return Interpolate(points, pointSteps[pointSteps.Length - 2], pointSteps[pointSteps.Length - 1], rmbSteps[rmbSteps.Length - 2], rmbSteps[rmbSteps.Length - 1]);
+            }
+
+            for (var i = 1; i < pointSteps.Length; i++)
+            {
+                if (points <= pointSteps[i])
+                {
+                    return Interpolate(points, pointSteps[i - 1], pointSteps[i], rmbSteps[i - 1], rmbSteps[i]);
+                }
+            }
+
+            return 0m;
+        }
+
+        private static decimal Interpolate(decimal x, decimal x1, decimal x2, decimal y1, decimal y2)
+        {
+            if (x2 == x1)
+            {
+                return y1;
+            }
+
+            var ratio = (x - x1) / (x2 - x1);
+            return y1 + (y2 - y1) * ratio;
+        }
+
+        private void UpdateRmbDisplay(decimal rmb)
+        {
+            var baseSize = GetRmbOutputBaseSize();
+            var minSize = _rmbLabel.Font.Size;
+            var normalText = rmb.ToString("F2", CultureInfo.InvariantCulture);
+            var normalResult = FitTextToRmbOutput(normalText, baseSize, minSize);
+            if (normalResult.Fits)
+            {
+                SetRmbOutputText(normalResult.Text, normalResult.FontSize);
+                return;
+            }
+
+            var sciText = rmb.ToString("0.###E+0", CultureInfo.InvariantCulture);
+            var sciResult = FitTextToRmbOutput(sciText, baseSize, minSize);
+            if (sciResult.Fits)
+            {
+                SetRmbOutputText(sciResult.Text, sciResult.FontSize);
+                return;
+            }
+
+            var ellipsisText = "…请放大窗口";
+            var ellipsisResult = FitTextToRmbOutput(ellipsisText, baseSize, minSize);
+            SetRmbOutputText(ellipsisResult.Text, ellipsisResult.FontSize);
+        }
+
+        private float GetRmbOutputBaseSize()
+        {
+            var baseSize = _rmbOutputBaseFontSize > 0 ? _rmbOutputBaseFontSize : _rmbOutput.Font.Size;
+            return Math.Max(baseSize, _rmbLabel.Font.Size);
+        }
+
+        private (string Text, float FontSize, bool Fits) FitTextToRmbOutput(string text, float baseSize, float minSize)
+        {
+            var targetSize = Math.Max(baseSize, minSize);
+            if (TryFitText(text, targetSize))
+            {
+                return (text, targetSize, true);
+            }
+
+            for (var size = targetSize; size >= minSize; size -= 0.5f)
+            {
+                if (TryFitText(text, size))
+                {
+                    return (text, size, true);
+                }
+            }
+
+            return (text, minSize, false);
+        }
+
+        private bool TryFitText(string text, float fontSize)
+        {
+            var availableWidth = _rmbOutput.ClientSize.Width;
+            var availableHeight = _rmbOutput.ClientSize.Height;
+            if (availableWidth <= 0 || availableHeight <= 0)
+            {
+                return true;
+            }
+
+            using (var font = new Font(_rmbOutput.Font.FontFamily, fontSize, _rmbOutput.Font.Style))
+            {
+                var size = TextRenderer.MeasureText(text, font, new Size(int.MaxValue, int.MaxValue), TextFormatFlags.NoPadding);
+                return size.Width <= availableWidth && size.Height <= availableHeight;
+            }
+        }
+
+        private void SetRmbOutputText(string text, float fontSize)
+        {
+            if (Math.Abs(_rmbOutput.Font.Size - fontSize) > 0.1f)
+            {
+                _rmbOutput.Font = new Font(_rmbOutput.Font.FontFamily, fontSize, _rmbOutput.Font.Style);
+            }
+            _rmbOutput.Text = text;
+        }
+
+        protected override void OnFormClosed(FormClosedEventArgs e)
+        {
+            if (_fallbackTopMostTimer != null)
+            {
+                _fallbackTopMostTimer.Stop();
+            }
+
+            if (_uiAccessDll != IntPtr.Zero)
+            {
+                FreeLibrary(_uiAccessDll);
+                _uiAccessDll = IntPtr.Zero;
+            }
+
+            base.OnFormClosed(e);
+        }
+
+        private void TryInitializeUiAccess()
+        {
+            if (_uiAccessDll != IntPtr.Zero)
+            {
+                return;
+            }
+
+            var dllPath = EnsureUiAccessExtracted();
+            if (dllPath == null)
+            {
+                return;
+            }
+
+            _uiAccessDll = LoadLibraryW(dllPath);
+            if (_uiAccessDll == IntPtr.Zero)
+            {
+                return;
+            }
+
+            var proc = GetProcAddress(_uiAccessDll, "IsUIAccess");
+            if (proc == IntPtr.Zero)
+            {
+                FreeLibrary(_uiAccessDll);
+                _uiAccessDll = IntPtr.Zero;
+                return;
+            }
+
+            _isUiAccess = Marshal.GetDelegateForFunctionPointer<IsUIAccessDelegate>(proc);
+            _uiAccessEnabled = _isUiAccess();
+        }
+
+        private void TryInitializeIcon()
+        {
+            try
+            {
+                using (var stream = GetEmbeddedResourceStream(IconResourceSuffix))
+                {
+                    if (stream == null)
+                    {
+                        return;
+                    }
+
+                    using (var icon = new Icon(stream))
+                    {
+                        Icon = (Icon)icon.Clone();
+                    }
+                }
+            }
+            catch
+            {
+            }
+        }
+
+        private void ShowAboutDialog()
+        {
+            var dialog = new Form
+            {
+                Text = "关于",
+                StartPosition = FormStartPosition.CenterParent,
+                FormBorderStyle = FormBorderStyle.FixedDialog,
+                MaximizeBox = false,
+                MinimizeBox = false,
+                ShowInTaskbar = false,
+                ClientSize = new Size(520, 420)
+            };
+
+            var textBox = new TextBox
+            {
+                Multiline = true,
+                ReadOnly = true,
+                ScrollBars = ScrollBars.Vertical,
+                Dock = DockStyle.Fill,
+                Font = new Font("Microsoft YaHei UI", 10F),
+                BackColor = SystemColors.Window,
+                BorderStyle = BorderStyle.None
+            };
+
+            var buildTime = File.Exists(Application.ExecutablePath)
+                ? File.GetLastWriteTime(Application.ExecutablePath).ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture)
+                : "未知";
+
+            textBox.Text = string.Join(Environment.NewLine, new[]
+            {
+                "善学教育积分卡汇率计算器",
+                $"版本号：{Application.ProductVersion}",
+                "作者：ZerkyLiu",
+                $"构建时间：{buildTime}",
+                $"运行环境：.NET {Environment.Version}",
+                $"系统信息：{Environment.OSVersion}",
+                $"UIAccess状态：{(_uiAccessEnabled ? "已启用" : "未启用")}",
+                "",
+                "功能亮点：",
+                "• 动态自适应结果展示",
+                "• 网络时间同步",
+                "• 高精度阶梯换算",
+                "• UIAccess 置顶支持",
+                "",
+                "未来计划：",
+                "• 联网自动更新",
+                "• 修复已知问题"
+            });
+
+            dialog.Controls.Add(textBox);
+            dialog.ShowDialog(this);
+        }
+
+        private bool TryRelaunchWithUiAccess()
+        {
+            if (_uiAccessEnabled)
+            {
+                return false;
+            }
+
+            var args = Environment.GetCommandLineArgs();
+            foreach (var arg in args)
+            {
+                if (string.Equals(arg, UiAccessRelaunchArg, StringComparison.OrdinalIgnoreCase))
+                {
+                    return false;
+                }
+            }
+
+            var dllPath = EnsureUiAccessExtracted();
+            if (string.IsNullOrEmpty(dllPath))
+            {
+                return false;
+            }
+
+            var exePath = Application.ExecutablePath;
+            var forwardedArgs = BuildForwardedArgs(args);
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "rundll32.exe",
+                Arguments = $"\"{dllPath}\",run \"{exePath}\" {forwardedArgs} {UiAccessRelaunchArg}",
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+
+            try
+            {
+                Process.Start(startInfo);
+                BeginInvoke(new Action(Close));
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
+
+        private string? EnsureUiAccessExtracted()
+        {
+            if (!string.IsNullOrEmpty(_uiAccessDllPath) && File.Exists(_uiAccessDllPath))
+            {
+                return _uiAccessDllPath;
+            }
+
+            var tempDir = Path.Combine(Path.GetTempPath(), "善学教育积分卡汇率计算器");
+            var dllPath = Path.Combine(tempDir, $"uiaccess_{Process.GetCurrentProcess().Id}.dll");
+            try
+            {
+                Directory.CreateDirectory(tempDir);
+                if (File.Exists(dllPath))
+                {
+                    _uiAccessDllPath = dllPath;
+                    return dllPath;
+                }
+
+                using (var stream = GetEmbeddedResourceStream(UiAccessResourceSuffix))
+                {
+                    if (stream == null)
+                    {
+                        return null;
+                    }
+
+                    using (var file = new FileStream(dllPath, FileMode.CreateNew, FileAccess.Write, FileShare.ReadWrite))
+                    {
+                        stream.CopyTo(file);
+                    }
+                }
+
+                _uiAccessDllPath = dllPath;
+                return dllPath;
+            }
+            catch
+            {
+                if (File.Exists(dllPath))
+                {
+                    _uiAccessDllPath = dllPath;
+                    return dllPath;
+                }
+
+                return null;
+            }
+        }
+
+        private static Stream? GetEmbeddedResourceStream(string suffix)
+        {
+            var assembly = typeof(MainForm).Assembly;
+            var resourceName = assembly.GetManifestResourceNames()
+                .FirstOrDefault(name => name.EndsWith(suffix, StringComparison.OrdinalIgnoreCase));
+            if (resourceName == null)
+            {
+                return null;
+            }
+
+            return assembly.GetManifestResourceStream(resourceName);
+        }
+
+        private static string BuildForwardedArgs(string[] args)
+        {
+            if (args.Length <= 1)
+            {
+                return string.Empty;
+            }
+
+            var builder = new System.Text.StringBuilder();
+            for (var i = 1; i < args.Length; i++)
+            {
+                if (string.Equals(args[i], UiAccessRelaunchArg, StringComparison.OrdinalIgnoreCase))
+                {
+                    continue;
+                }
+
+                if (builder.Length > 0)
+                {
+                    builder.Append(' ');
+                }
+
+                builder.Append(QuoteArg(args[i]));
+            }
+
+            return builder.ToString();
+        }
+
+        private static string QuoteArg(string value)
+        {
+            if (string.IsNullOrEmpty(value))
+            {
+                return "\"\"";
+            }
+
+            if (value.IndexOfAny(new[] { ' ', '\t', '"', '\\' }) == -1)
+            {
+                return value;
+            }
+
+            var escaped = value.Replace("\\", "\\\\").Replace("\"", "\\\"");
+            return $"\"{escaped}\"";
+        }
+
+        private void ApplyTopMost(bool enabled)
+        {
+            TopMost = enabled;
+            if (!enabled)
+            {
+                SetFallbackTopMost(false);
+                SetUiAccessTopMost(false);
+                if (_uiAccessEnabled && IsHandleCreated)
+                {
+                    SetWindowPos(Handle, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
+                }
+                return;
+            }
+
+            if (_forceFallbackTopMost)
+            {
+                SetFallbackTopMost(true);
+                ApplyFallbackTopMostTick();
+                return;
+            }
+
+            if (_uiAccessEnabled && IsHandleCreated)
+            {
+                SetFallbackTopMost(false);
+                SetUiAccessTopMost(true);
+                SetWindowPos(Handle, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
+                ApplyFallbackTopMostTick();
+                return;
+            }
+
+            SetUiAccessTopMost(false);
+            SetFallbackTopMost(true);
+            ApplyFallbackTopMostTick();
+        }
+
+        private void SetUiAccessTopMost(bool enabled)
+        {
+            if (_usingUiAccessTopMost == enabled)
+            {
+                return;
+            }
+
+            _usingUiAccessTopMost = enabled;
+            if (enabled)
+            {
+                _fallbackTopMostTimer.Start();
+            }
+            else if (!_usingFallbackTopMost)
+            {
+                _fallbackTopMostTimer.Stop();
+            }
+        }
+
+        private void SetFallbackTopMost(bool enabled)
+        {
+            if (_usingFallbackTopMost == enabled)
+            {
+                return;
+            }
+
+            _usingFallbackTopMost = enabled;
+            _topMostToggle.Text = enabled ? "超级置顶（备）" : "超级置顶";
+            if (enabled)
+            {
+                _fallbackTopMostTimer.Start();
+            }
+            else if (!_usingUiAccessTopMost)
+            {
+                _fallbackTopMostTimer.Stop();
+            }
+        }
+
+        private void ApplyFallbackTopMostTick()
+        {
+            if ((!_usingFallbackTopMost && !_usingUiAccessTopMost) || !IsHandleCreated)
+            {
+                return;
+            }
+
+            TopMost = true;
+            SetWindowPos(Handle, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
+        }
+
+        [UnmanagedFunctionPointer(CallingConvention.Winapi)]
+        private delegate bool IsUIAccessDelegate();
+
+        [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
+        private static extern IntPtr LoadLibraryW(string lpFileName);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        private static extern IntPtr GetProcAddress(IntPtr hModule, string procName);
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        private static extern bool FreeLibrary(IntPtr hModule);
+
+        [DllImport("user32.dll", SetLastError = true)]
+        private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int cx, int cy, uint uFlags);
+
+        private static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
+        private static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2);
+        private const uint SWP_NOMOVE = 0x0002;
+        private const uint SWP_NOSIZE = 0x0001;
+        private const uint SWP_NOACTIVATE = 0x0010;
+    }
+}
diff --git a/Program.cs b/Program.cs
new file mode 100644
index 0000000..4384d41
--- /dev/null
+++ b/Program.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Windows.Forms;
+
+namespace 善学教育积分卡汇率计算器
+{
+    internal static class Program
+    {
+        [STAThread]
+        private static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new MainForm());
+        }
+    }
+}
diff --git a/app.manifest b/app.manifest
new file mode 100644
index 0000000..4ef49c6
--- /dev/null
+++ b/app.manifest
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity version="1.0.0.0" name="善学教育积分卡汇率计算器"/>
+  <application xmlns="urn:schemas-microsoft-com:asm.v3">
+    <windowsSettings>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true</dpiAware>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </windowsSettings>
+  </application>
+</assembly>
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..cdc98d5
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,26 @@
+# 善学教育积分卡汇率计算器
+
+## 功能亮点
+
+- **动态自适应结果展示**
+- **网络时间同步**
+- **高精度阶梯换算**
+- **UIAccess 置顶支持**
+
+## 快速开始
+
+从[发布](http://https://gittea.dev/ZerkyLiu/Shanxue-Education-Points-Coin-Converter/releases "发布")页下载程序本体。
+
+> https://gittea.dev/ZerkyLiu/Shanxue-Education-Points-Coin-Converter/releases
+
+源码是手动上传的，可能（~~一定~~）会落后。
+
+**祝您使用愉快！**
+
+
+## 特别鸣谢
+使用了[RunUIAccess](http://https://github.com/shc0743/RunUIAccess "RunUIAccess")以实现“超级置顶”的主要功能。
+
+
+## 许可证
+AGPL3
\ No newline at end of file