diff --git a/src/Snap.Hutao/Snap.Hutao.Test/CSharpLanguageFeatureTest.cs b/src/Snap.Hutao/Snap.Hutao.Test/CSharpLanguageFeatureTest.cs
new file mode 100644
index 00000000..d267cb5d
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao.Test/CSharpLanguageFeatureTest.cs
@@ -0,0 +1,25 @@
+namespace Snap.Hutao.Test;
+
+[TestClass]
+public class CSharpLanguageFeatureTest
+{
+    [TestMethod]
+    public unsafe void NullStringFixedAlsoNullPointer()
+    {
+        string testStr = null!;
+        fixed(char* pStr = testStr)
+        {
+            Assert.IsTrue(pStr == null);
+        }
+    }
+
+    [TestMethod]
+    public unsafe void EmptyStringFixedIsNullTerminator()
+    {
+        string testStr = string.Empty;
+        fixed (char* pStr = testStr)
+        {
+            Assert.IsTrue(*pStr == '\0');
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao.Test/DependencyInjectionTest.cs b/src/Snap.Hutao/Snap.Hutao.Test/DependencyInjectionTest.cs
index 4560c051..11ff2739 100644
--- a/src/Snap.Hutao/Snap.Hutao.Test/DependencyInjectionTest.cs
+++ b/src/Snap.Hutao/Snap.Hutao.Test/DependencyInjectionTest.cs
@@ -7,7 +7,7 @@ namespace Snap.Hutao.Test;
 public class DependencyInjectionTest
 {
     [TestMethod]
-    public void OriginalTypeDiscoverable()
+    public void OriginalTypeNotDiscoverable()
     {
         IServiceProvider services = new ServiceCollection()
             .AddSingleton<IService, ServiceA>()
diff --git a/src/Snap.Hutao/Snap.Hutao.Test/Snap.Hutao.Test.csproj b/src/Snap.Hutao/Snap.Hutao.Test/Snap.Hutao.Test.csproj
index f1b8a08c..b918f411 100644
--- a/src/Snap.Hutao/Snap.Hutao.Test/Snap.Hutao.Test.csproj
+++ b/src/Snap.Hutao/Snap.Hutao.Test/Snap.Hutao.Test.csproj
@@ -6,6 +6,7 @@
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
     <IsTestProject>true</IsTestProject>
+    <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/ExtendedWindow.cs b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/ExtendedWindow.cs
index e798e0ea..6e3d0985 100644
--- a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/ExtendedWindow.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/ExtendedWindow.cs
@@ -10,8 +10,6 @@ using Snap.Hutao.Win32;
 using System.IO;
 using Windows.Graphics;
 using Windows.UI;
-using Windows.Win32.Foundation;
-using WinRT.Interop;
 
 namespace Snap.Hutao.Core.Windowing;
 
@@ -23,34 +21,22 @@ namespace Snap.Hutao.Core.Windowing;
 internal sealed class ExtendedWindow<TWindow> : IRecipient<BackdropTypeChangedMessage>, IRecipient<FlyoutOpenCloseMessage>
     where TWindow : Window, IExtendedWindowSource
 {
-    private readonly HWND hwnd;
-    private readonly AppWindow appWindow;
-
-    private readonly TWindow window;
-    private readonly FrameworkElement titleBar;
+    private readonly WindowOptions<TWindow> options;
 
     private readonly IServiceProvider serviceProvider;
     private readonly ILogger<ExtendedWindow<TWindow>> logger;
-    private readonly WindowSubclassManager<TWindow> subclassManager;
-
-    private readonly bool useLegacyDragBar;
+    private readonly WindowSubclass<TWindow> subclass;
 
     private SystemBackdrop? systemBackdrop;
 
     private ExtendedWindow(TWindow window, FrameworkElement titleBar, IServiceProvider serviceProvider)
     {
-        this.window = window;
-        this.titleBar = titleBar;
+        options = new(window, titleBar);
+        subclass = new(options);
+
         logger = serviceProvider.GetRequiredService<ILogger<ExtendedWindow<TWindow>>>();
         this.serviceProvider = serviceProvider;
 
-        hwnd = (HWND)WindowNative.GetWindowHandle(window);
-        WindowId windowId = Win32Interop.GetWindowIdFromWindow(hwnd);
-        appWindow = AppWindow.GetFromWindowId(windowId);
-
-        useLegacyDragBar = !AppWindowTitleBar.IsCustomizationSupported();
-        subclassManager = new(window, hwnd, useLegacyDragBar);
-
         InitializeWindow();
     }
 
@@ -79,63 +65,63 @@ internal sealed class ExtendedWindow<TWindow> : IRecipient<BackdropTypeChangedMe
     /// <inheritdoc/>
     public void Receive(FlyoutOpenCloseMessage message)
     {
-        UpdateDragRectangles(appWindow.TitleBar, message.IsOpen);
+        UpdateDragRectangles(options.AppWindow.TitleBar, message.IsOpen);
     }
 
     private void InitializeWindow()
     {
-        appWindow.Title = string.Format(SH.AppNameAndVersion, CoreEnvironment.Version);
-        appWindow.SetIcon(Path.Combine(CoreEnvironment.InstalledLocation, "Assets/Logo.ico"));
+        options.AppWindow.Title = string.Format(SH.AppNameAndVersion, CoreEnvironment.Version);
+        options.AppWindow.SetIcon(Path.Combine(CoreEnvironment.InstalledLocation, "Assets/Logo.ico"));
         ExtendsContentIntoTitleBar();
 
-        Persistence.RecoverOrInit(appWindow, window.PersistSize, window.InitSize);
+        Persistence.RecoverOrInit(options);
 
         // appWindow.Show(true);
         // appWindow.Show can't bring window to top.
-        window.Activate();
+        options.Window.Activate();
 
-        systemBackdrop = new(window);
+        systemBackdrop = new(options.Window);
         bool micaApplied = systemBackdrop.TryApply();
         logger.LogInformation("Apply {name} : {result}", nameof(SystemBackdrop), micaApplied ? "succeed" : "failed");
 
-        bool subClassApplied = subclassManager.TrySetWindowSubclass();
-        logger.LogInformation("Apply {name} : {result}", nameof(WindowSubclassManager<TWindow>), subClassApplied ? "succeed" : "failed");
+        bool subClassApplied = subclass.Initialize();
+        logger.LogInformation("Apply {name} : {result}", nameof(WindowSubclass<TWindow>), subClassApplied ? "succeed" : "failed");
 
-        IMessenger messenger = Ioc.Default.GetRequiredService<IMessenger>();
+        IMessenger messenger = serviceProvider.GetRequiredService<IMessenger>();
         messenger.Register<BackdropTypeChangedMessage>(this);
         messenger.Register<FlyoutOpenCloseMessage>(this);
 
-        window.Closed += OnWindowClosed;
+        options.Window.Closed += OnWindowClosed;
     }
 
     private void OnWindowClosed(object sender, WindowEventArgs args)
     {
-        if (window.PersistSize)
+        if (options.Window.PersistSize)
         {
-            Persistence.Save(appWindow);
+            Persistence.Save(options);
         }
 
-        subclassManager?.Dispose();
+        subclass?.Dispose();
     }
 
     private void ExtendsContentIntoTitleBar()
     {
-        if (useLegacyDragBar)
+        if (options.UseLegacyDragBarImplementation)
         {
             // use normal Window method to extend.
-            window.ExtendsContentIntoTitleBar = true;
-            window.SetTitleBar(titleBar);
+            options.Window.ExtendsContentIntoTitleBar = true;
+            options.Window.SetTitleBar(options.TitleBar);
         }
         else
         {
-            AppWindowTitleBar appTitleBar = appWindow.TitleBar;
+            AppWindowTitleBar appTitleBar = options.AppWindow.TitleBar;
             appTitleBar.IconShowOptions = IconShowOptions.HideIconAndSystemMenu;
             appTitleBar.ExtendsContentIntoTitleBar = true;
 
             UpdateTitleButtonColor(appTitleBar);
             UpdateDragRectangles(appTitleBar);
-            titleBar.ActualThemeChanged += (s, e) => UpdateTitleButtonColor(appTitleBar);
-            titleBar.SizeChanged += (s, e) => UpdateDragRectangles(appTitleBar);
+            options.TitleBar.ActualThemeChanged += (s, e) => UpdateTitleButtonColor(appTitleBar);
+            options.TitleBar.SizeChanged += (s, e) => UpdateDragRectangles(appTitleBar);
         }
     }
 
@@ -168,20 +154,20 @@ internal sealed class ExtendedWindow<TWindow> : IRecipient<BackdropTypeChangedMe
         if (isFlyoutOpened)
         {
             // set to 0
-            appTitleBar.SetDragRectangles(default(RectInt32).Enumerate().ToArray());
+            appTitleBar.SetDragRectangles(default(RectInt32).ToArray());
         }
         else
         {
-            double scale = Persistence.GetScaleForWindowHandle(hwnd);
+            double scale = Persistence.GetScaleForWindowHandle(options.Hwnd);
 
             // 48 is the navigation button leftInset
-            RectInt32 dragRect = StructMarshal.RectInt32(new(48, 0), titleBar.ActualSize).Scale(scale);
-            appTitleBar.SetDragRectangles(dragRect.Enumerate().ToArray());
+            RectInt32 dragRect = StructMarshal.RectInt32(new(48, 0), options.TitleBar.ActualSize).Scale(scale);
+            appTitleBar.SetDragRectangles(dragRect.ToArray());
 
             // workaround for https://github.com/microsoft/WindowsAppSDK/issues/2976
-            SizeInt32 size = appWindow.ClientSize;
+            SizeInt32 size = options.AppWindow.ClientSize;
             size.Height -= (int)(31 * scale);
-            appWindow.ResizeClient(size);
+            options.AppWindow.ResizeClient(size);
         }
     }
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/Persistence.cs b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/Persistence.cs
index 0b05bb02..b8a3f557 100644
--- a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/Persistence.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/Persistence.cs
@@ -1,11 +1,11 @@
 // Copyright (c) DGP Studio. All rights reserved.
 // Licensed under the MIT license.
 
-using Microsoft.UI;
 using Microsoft.UI.Windowing;
+using Microsoft.UI.Xaml;
 using Snap.Hutao.Core.Setting;
 using Snap.Hutao.Win32;
-using System.Runtime.InteropServices;
+using System.Runtime.CompilerServices;
 using Windows.Graphics;
 using Windows.Win32.Foundation;
 using Windows.Win32.UI.WindowsAndMessaging;
@@ -22,43 +22,44 @@ internal static class Persistence
     /// <summary>
     /// 设置窗体位置
     /// </summary>
-    /// <param name="appWindow">应用窗体</param>
-    /// <param name="persistSize">持久化尺寸</param>
-    /// <param name="initialSize">初始尺寸</param>
-    public static unsafe void RecoverOrInit(AppWindow appWindow, bool persistSize, SizeInt32 initialSize)
+    /// <param name="options">选项</param>
+    /// <typeparam name="TWindow">窗体类型</typeparam>
+    public static void RecoverOrInit<TWindow>(WindowOptions<TWindow> options)
+        where TWindow : Window, IExtendedWindowSource
     {
         // Set first launch size.
-        HWND hwnd = (HWND)Win32Interop.GetWindowFromWindowId(appWindow.Id);
-        SizeInt32 transformedSize = TransformSizeForWindow(initialSize, hwnd);
+        double scale = GetScaleForWindowHandle(options.Hwnd);
+        SizeInt32 transformedSize = options.Window.InitSize.Scale(scale);
         RectInt32 rect = StructMarshal.RectInt32(transformedSize);
 
-        if (persistSize)
+        if (options.Window.PersistSize)
         {
             RectInt32 persistedRect = (CompactRect)LocalSetting.Get(SettingKeys.WindowRect, (ulong)(CompactRect)rect);
-            if (persistedRect.Size() >= initialSize.Size())
+            if (persistedRect.Size() >= options.Window.InitSize.Size())
             {
                 rect = persistedRect;
             }
         }
 
         TransformToCenterScreen(ref rect);
-        appWindow.MoveAndResize(rect);
+        options.AppWindow.MoveAndResize(rect);
     }
 
     /// <summary>
-    /// 保存状态的位置
+    /// 保存窗体的位置
     /// </summary>
-    /// <param name="appWindow">应用窗体</param>
-    public static void Save(AppWindow appWindow)
+    /// <param name="options">选项</param>
+    /// <typeparam name="TWindow">窗体类型</typeparam>
+    public static void Save<TWindow>(WindowOptions<TWindow> options)
+        where TWindow : Window, IExtendedWindowSource
     {
-        HWND hwnd = (HWND)Win32Interop.GetWindowFromWindowId(appWindow.Id);
         WINDOWPLACEMENT windowPlacement = StructMarshal.WINDOWPLACEMENT();
-        GetWindowPlacement(hwnd, ref windowPlacement);
+        GetWindowPlacement(options.Hwnd, ref windowPlacement);
 
         // prevent save value when we are maximized.
         if (!windowPlacement.showCmd.HasFlag(SHOW_WINDOW_CMD.SW_SHOWMAXIMIZED))
         {
-            LocalSetting.Set(SettingKeys.WindowRect, (CompactRect)appWindow.GetRect());
+            LocalSetting.Set(SettingKeys.WindowRect, (CompactRect)options.AppWindow.GetRect());
         }
     }
 
@@ -70,13 +71,7 @@ internal static class Persistence
     public static double GetScaleForWindowHandle(HWND hwnd)
     {
         uint dpi = GetDpiForWindow(hwnd);
-        return Math.Round(dpi / 96d, 2, MidpointRounding.AwayFromZero);
-    }
-
-    private static SizeInt32 TransformSizeForWindow(SizeInt32 size, HWND hwnd)
-    {
-        double scale = GetScaleForWindowHandle(hwnd);
-        return new((int)(size.Width * scale), (int)(size.Height * scale));
+        return Math.Round(dpi / 96D, 2, MidpointRounding.AwayFromZero);
     }
 
     private static void TransformToCenterScreen(ref RectInt32 rect)
@@ -88,60 +83,41 @@ internal static class Persistence
         rect.Y = workAreaRect.Y + ((workAreaRect.Height - rect.Height) / 2);
     }
 
-    [StructLayout(LayoutKind.Explicit)]
     private struct CompactRect
     {
-        [FieldOffset(0)]
         public short X;
-
-        [FieldOffset(2)]
         public short Y;
-
-        [FieldOffset(4)]
         public short Width;
-
-        [FieldOffset(6)]
         public short Height;
 
-        [FieldOffset(0)]
-        public ulong Value;
-
         private CompactRect(int x, int y, int width, int height)
         {
-            Value = 0;
             X = (short)x;
             Y = (short)y;
             Width = (short)width;
             Height = (short)height;
         }
 
-        private CompactRect(ulong value)
-        {
-            X = 0;
-            Y = 0;
-            Width = 0;
-            Height = 0;
-            Value = value;
-        }
-
         public static implicit operator RectInt32(CompactRect rect)
         {
             return new(rect.X, rect.Y, rect.Width, rect.Height);
         }
 
-        public static explicit operator CompactRect(ulong value)
-        {
-            return new(value);
-        }
-
         public static explicit operator CompactRect(RectInt32 rect)
         {
             return new(rect.X, rect.Y, rect.Width, rect.Height);
         }
 
-        public static implicit operator ulong(CompactRect rect)
+        public static unsafe explicit operator CompactRect(ulong value)
         {
-            return rect.Value;
+            Unsafe.SkipInit(out CompactRect rect);
+            *(ulong*)&rect = value;
+            return rect;
+        }
+
+        public static unsafe implicit operator ulong(CompactRect rect)
+        {
+            return *(ulong*)&rect;
         }
     }
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/SystemBackdrop.cs b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/SystemBackdrop.cs
index 0bd620a9..b54653bd 100644
--- a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/SystemBackdrop.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/SystemBackdrop.cs
@@ -8,6 +8,7 @@ using Snap.Hutao.Control.Theme;
 using Snap.Hutao.Core.Database;
 using Snap.Hutao.Model.Entity;
 using Snap.Hutao.Model.Entity.Database;
+using Snap.Hutao.Service;
 using System.Runtime.InteropServices;
 using Windows.System;
 using WinRT;
@@ -34,9 +35,7 @@ internal sealed class SystemBackdrop
         this.window = window;
         using (IServiceScope scope = Ioc.Default.CreateScope())
         {
-            AppDbContext appDbContext = scope.ServiceProvider.GetRequiredService<AppDbContext>();
-            SettingEntry entry = appDbContext.Settings.SingleOrAdd(SettingEntry.SystemBackdropType, BackdropType.Mica.ToString());
-            BackdropType = Enum.Parse<BackdropType>(entry.Value!);
+            BackdropType = scope.ServiceProvider.GetRequiredService<AppOptions>().BackdropType;
         }
     }
 
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowOptions.cs b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowOptions.cs
new file mode 100644
index 00000000..00866ee0
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowOptions.cs
@@ -0,0 +1,53 @@
+// Copyright (c) DGP Studio. All rights reserved.
+// Licensed under the MIT license.
+
+using Microsoft.UI;
+using Microsoft.UI.Windowing;
+using Microsoft.UI.Xaml;
+using Windows.Win32.Foundation;
+using WinRT.Interop;
+
+namespace Snap.Hutao.Core.Windowing;
+
+/// <summary>
+/// Window 选项
+/// </summary>
+/// <typeparam name="TWindow">窗体类型</typeparam>
+internal readonly struct WindowOptions<TWindow>
+    where TWindow : Window, IExtendedWindowSource
+{
+    /// <summary>
+    /// 窗体句柄
+    /// </summary>
+    public readonly HWND Hwnd;
+
+    /// <summary>
+    /// AppWindow
+    /// </summary>
+    public readonly AppWindow AppWindow;
+
+    /// <summary>
+    /// 窗体
+    /// </summary>
+    public readonly TWindow Window;
+
+    /// <summary>
+    /// 标题栏元素
+    /// </summary>
+    public readonly FrameworkElement TitleBar;
+
+    /// <summary>
+    /// 是否使用 Win UI 3 自带的拓展标题栏实现
+    /// </summary>
+    public readonly bool UseLegacyDragBarImplementation = !AppWindowTitleBar.IsCustomizationSupported();
+
+    public WindowOptions(TWindow window, FrameworkElement titleBar)
+    {
+        Window = window;
+        Hwnd = (HWND)WindowNative.GetWindowHandle(window);
+        WindowId windowId = Win32Interop.GetWindowIdFromWindow(Hwnd);
+        AppWindow = AppWindow.GetFromWindowId(windowId);
+
+        TitleBar = titleBar;
+    }
+}
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowSubclassManager.cs b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowSubclass.cs
similarity index 64%
rename from src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowSubclassManager.cs
rename to src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowSubclass.cs
index 491f0c78..05539ce1 100644
--- a/src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowSubclassManager.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Core/Windowing/WindowSubclass.cs
@@ -14,16 +14,13 @@ namespace Snap.Hutao.Core.Windowing;
 /// </summary>
 /// <typeparam name="TWindow">窗体类型</typeparam>
 [HighQuality]
-internal sealed class WindowSubclassManager<TWindow> : IDisposable
+internal sealed class WindowSubclass<TWindow> : IDisposable
     where TWindow : Window, IExtendedWindowSource
 {
     private const int WindowSubclassId = 101;
     private const int DragBarSubclassId = 102;
 
-    private readonly TWindow window;
-    private readonly HWND hwnd;
-    private readonly bool isLegacyDragBar;
-    private HWND hwndDragBar;
+    private readonly WindowOptions<TWindow> options;
 
     // We have to explicitly hold a reference to SUBCLASSPROC
     private SUBCLASSPROC? windowProc;
@@ -32,32 +29,28 @@ internal sealed class WindowSubclassManager<TWindow> : IDisposable
     /// <summary>
     /// 构造一个新的窗体子类管理器
     /// </summary>
-    /// <param name="window">窗体实例</param>
-    /// <param name="hwnd">窗体句柄</param>
-    /// <param name="isLegacyDragBar">是否为经典标题栏区域</param>
-    public WindowSubclassManager(TWindow window, HWND hwnd, bool isLegacyDragBar)
+    /// <param name="options">选项</param>
+    public WindowSubclass(WindowOptions<TWindow> options)
     {
-        this.window = window;
-        this.hwnd = hwnd;
-        this.isLegacyDragBar = isLegacyDragBar;
+        this.options = options;
     }
 
     /// <summary>
     /// 尝试设置窗体子类
     /// </summary>
     /// <returns>是否设置成功</returns>
-    public unsafe bool TrySetWindowSubclass()
+    public bool Initialize()
     {
         windowProc = new(OnSubclassProcedure);
-        bool windowHooked = SetWindowSubclass(hwnd, windowProc, WindowSubclassId, 0);
+        bool windowHooked = SetWindowSubclass(options.Hwnd, windowProc, WindowSubclassId, 0);
 
         bool titleBarHooked = true;
 
-        // only hook up drag bar proc when not use legacy Window.ExtendsContentIntoTitleBar
-        if (isLegacyDragBar)
+        // only hook up drag bar proc when use legacy Window.ExtendsContentIntoTitleBar
+        if (options.UseLegacyDragBarImplementation)
         {
             titleBarHooked = false;
-            hwndDragBar = FindWindowEx(hwnd, default, "DRAG_BAR_WINDOW_CLASS", string.Empty);
+            HWND hwndDragBar = FindWindowEx(options.Hwnd, default, "DRAG_BAR_WINDOW_CLASS", default);
 
             if (!hwndDragBar.IsNull)
             {
@@ -72,14 +65,14 @@ internal sealed class WindowSubclassManager<TWindow> : IDisposable
     /// <inheritdoc/>
     public void Dispose()
     {
-        RemoveWindowSubclass(hwnd, windowProc, WindowSubclassId);
-        if (isLegacyDragBar)
-        {
-            RemoveWindowSubclass(hwnd, dragBarProc, DragBarSubclassId);
-        }
-
+        RemoveWindowSubclass(options.Hwnd, windowProc, WindowSubclassId);
         windowProc = null;
-        dragBarProc = null;
+
+        if (options.UseLegacyDragBarImplementation)
+        {
+            RemoveWindowSubclass(options.Hwnd, dragBarProc, DragBarSubclassId);
+            dragBarProc = null;
+        }
     }
 
     private unsafe LRESULT OnSubclassProcedure(HWND hwnd, uint uMsg, WPARAM wParam, LPARAM lParam, nuint uIdSubclass, nuint dwRefData)
@@ -89,14 +82,14 @@ internal sealed class WindowSubclassManager<TWindow> : IDisposable
             case WM_GETMINMAXINFO:
                 {
                     double scalingFactor = Persistence.GetScaleForWindowHandle(hwnd);
-                    window.ProcessMinMaxInfo((MINMAXINFO*)lParam.Value, scalingFactor);
+                    options.Window.ProcessMinMaxInfo((MINMAXINFO*)lParam.Value, scalingFactor);
                     break;
                 }
 
             case WM_NCRBUTTONDOWN:
             case WM_NCRBUTTONUP:
                 {
-                    return new(0);
+                    return (LRESULT)0; // WM_NULL
                 }
         }
 
@@ -110,7 +103,7 @@ internal sealed class WindowSubclassManager<TWindow> : IDisposable
             case WM_NCRBUTTONDOWN:
             case WM_NCRBUTTONUP:
                 {
-                    return new(0);
+                    return (LRESULT)0; // WM_NULL
                 }
         }
 
diff --git a/src/Snap.Hutao/Snap.Hutao/Extension/MemoryCacheExtension.cs b/src/Snap.Hutao/Snap.Hutao/Extension/MemoryCacheExtension.cs
index 749a2fc5..4a7d8e82 100644
--- a/src/Snap.Hutao/Snap.Hutao/Extension/MemoryCacheExtension.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Extension/MemoryCacheExtension.cs
@@ -17,7 +17,7 @@ internal static class MemoryCacheExtension
     /// <param name="key">键</param>
     /// <param name="value">值</param>
     /// <returns>是否移除成功</returns>
-    public static bool TryRemove(this IMemoryCache memoryCache, string key, [NotNullWhen(true)] out object? value)
+    public static bool TryRemove(this IMemoryCache memoryCache, string key, out object? value)
     {
         if (memoryCache.TryGetValue(key, out value))
         {
diff --git a/src/Snap.Hutao/Snap.Hutao/Extension/ObjectExtension.cs b/src/Snap.Hutao/Snap.Hutao/Extension/ObjectExtension.cs
new file mode 100644
index 00000000..b4ca30ae
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Extension/ObjectExtension.cs
@@ -0,0 +1,23 @@
+// Copyright (c) DGP Studio. All rights reserved.
+// Licensed under the MIT license.
+
+using System.Runtime.CompilerServices;
+
+namespace Snap.Hutao.Extension;
+
+/// <summary>
+/// 对象拓展
+/// </summary>
+internal static class ObjectExtension
+{
+    /// <summary>
+    /// 转换到只有1长度的数组
+    /// </summary>
+    /// <typeparam name="T">数据类型</typeparam>
+    /// <param name="source">源</param>
+    /// <returns>数组</returns>
+    public static T[] ToArray<T>(this T source)
+    {
+        return new[] { source };
+    }
+}
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/NativeMethods.json b/src/Snap.Hutao/Snap.Hutao/NativeMethods.json
index 1694d869..f7b56332 100644
--- a/src/Snap.Hutao/Snap.Hutao/NativeMethods.json
+++ b/src/Snap.Hutao/Snap.Hutao/NativeMethods.json
@@ -1,5 +1,6 @@
 {
-  "$schema": "https://aka.ms/CsWin32.schema.json",
+  "$schema": "https://raw.githubusercontent.com/microsoft/CsWin32/main/src/Microsoft.Windows.CsWin32/settings.schema.json",
   "allowMarshaling": true,
-  "public": true
+  "public": true,
+  "useSafeHandles": false
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/NativeMethods.txt b/src/Snap.Hutao/Snap.Hutao/NativeMethods.txt
index 4c91863d..16a0d474 100644
--- a/src/Snap.Hutao/Snap.Hutao/NativeMethods.txt
+++ b/src/Snap.Hutao/Snap.Hutao/NativeMethods.txt
@@ -3,6 +3,7 @@ INFINITE
 WM_GETMINMAXINFO
 WM_NCRBUTTONDOWN
 WM_NCRBUTTONUP
+WM_NULL
 
 // Type & Enum definition
 CWMO_FLAGS
diff --git a/src/Snap.Hutao/Snap.Hutao/Service/Game/Unlocker/GameFpsUnlocker.cs b/src/Snap.Hutao/Snap.Hutao/Service/Game/Unlocker/GameFpsUnlocker.cs
index d5911f91..32735566 100644
--- a/src/Snap.Hutao/Snap.Hutao/Service/Game/Unlocker/GameFpsUnlocker.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Service/Game/Unlocker/GameFpsUnlocker.cs
@@ -64,7 +64,20 @@ internal sealed class GameFpsUnlocker : IGameFpsUnlocker
         memory = new byte[entry.modBaseSize];
         fixed (byte* lpBuffer = memory)
         {
-            return ReadProcessMemory(process.SafeHandle, entry.modBaseAddr, lpBuffer, entry.modBaseSize, null);
+            bool hProcessAddRef = false;
+            try
+            {
+                process.SafeHandle.DangerousAddRef(ref hProcessAddRef);
+                HANDLE hProcessLocal = (HANDLE)process.SafeHandle.DangerousGetHandle();
+                return ReadProcessMemory(hProcessLocal, entry.modBaseAddr, lpBuffer, entry.modBaseSize, null);
+            }
+            finally
+            {
+                if (hProcessAddRef)
+                {
+                    process.SafeHandle.DangerousRelease();
+                }
+            }
         }
     }
 
@@ -72,7 +85,20 @@ internal sealed class GameFpsUnlocker : IGameFpsUnlocker
     {
         int* lpBuffer = &write;
 
-        return WriteProcessMemory(process.SafeHandle, (void*)baseAddress, lpBuffer, sizeof(int), null);
+        bool hProcessAddRef = false;
+        try
+        {
+            process.SafeHandle.DangerousAddRef(ref hProcessAddRef);
+            HANDLE hProcessLocal = (HANDLE)process.SafeHandle.DangerousGetHandle();
+            return WriteProcessMemory(hProcessLocal, (void*)baseAddress, lpBuffer, sizeof(int), null);
+        }
+        finally
+        {
+            if (hProcessAddRef)
+            {
+                process.SafeHandle.DangerousRelease();
+            }
+        }
     }
 
     private static unsafe MODULEENTRY32 UnsafeFindModule(int processId, ReadOnlySpan<byte> moduleName)
diff --git a/src/Snap.Hutao/Snap.Hutao/View/WelcomeView.xaml b/src/Snap.Hutao/Snap.Hutao/View/WelcomeView.xaml
index bb44dfe2..90a864a6 100644
--- a/src/Snap.Hutao/Snap.Hutao/View/WelcomeView.xaml
+++ b/src/Snap.Hutao/Snap.Hutao/View/WelcomeView.xaml
@@ -35,15 +35,16 @@
                 <ItemsControl Margin="0,0,0,32" ItemsSource="{Binding DownloadSummaries}">
                     <ItemsControl.ItemContainerTransitions>
                         <TransitionCollection>
-                            <EntranceThemeTransition IsStaggeringEnabled="False"/>
                             <AddDeleteThemeTransition/>
-                            <RepositionThemeTransition IsStaggeringEnabled="False"/>
+                            <ContentThemeTransition/>
+                            <ReorderThemeTransition/>
+                            <EntranceThemeTransition IsStaggeringEnabled="False"/>
                         </TransitionCollection>
                     </ItemsControl.ItemContainerTransitions>
                     <ItemsControl.ItemTemplate>
                         <DataTemplate>
-                            <Border Style="{StaticResource BorderCardStyle}">
-                                <StackPanel Margin="0,8,0,0">
+                            <Border Margin="0,4,0,0" Style="{StaticResource BorderCardStyle}">
+                                <StackPanel Margin="8">
                                     <TextBlock Text="{Binding DisplayName}"/>
                                     <ProgressBar
                                         Width="240"
diff --git a/src/Snap.Hutao/Snap.Hutao/ViewModel/WelcomeViewModel.cs b/src/Snap.Hutao/Snap.Hutao/ViewModel/WelcomeViewModel.cs
index bc8adf0f..19aff8bf 100644
--- a/src/Snap.Hutao/Snap.Hutao/ViewModel/WelcomeViewModel.cs
+++ b/src/Snap.Hutao/Snap.Hutao/ViewModel/WelcomeViewModel.cs
@@ -7,6 +7,7 @@ using CommunityToolkit.Mvvm.Input;
 using CommunityToolkit.Mvvm.Messaging;
 using CommunityToolkit.WinUI.Notifications;
 using Snap.Hutao.Core.Caching;
+using Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient;
 using Snap.Hutao.Core.IO;
 using Snap.Hutao.Core.Setting;
 using System.Collections.ObjectModel;
@@ -56,8 +57,10 @@ internal sealed class WelcomeViewModel : ObservableObject
 
         await Parallel.ForEachAsync(downloadSummaries, async (summary, token) =>
         {
-            await summary.DownloadAndExtractAsync().ConfigureAwait(false);
-            ThreadHelper.InvokeOnMainThread(() => DownloadSummaries.Remove(summary));
+            if (await summary.DownloadAndExtractAsync().ConfigureAwait(false))
+            {
+                ThreadHelper.InvokeOnMainThread(() => DownloadSummaries.Remove(summary));
+            }
         }).ConfigureAwait(true);
 
         serviceProvider.GetRequiredService<IMessenger>().Send(new Message.WelcomeStateCompleteMessage());
@@ -128,6 +131,7 @@ internal sealed class WelcomeViewModel : ObservableObject
         private readonly Progress<StreamCopyState> progress;
         private string description = SH.ViewModelWelcomeDownloadSummaryDefault;
         private double progressValue;
+        private long updateCount;
 
         /// <summary>
         /// 构造一个新的下载信息
@@ -137,6 +141,8 @@ internal sealed class WelcomeViewModel : ObservableObject
         public DownloadSummary(IServiceProvider serviceProvider, string fileName)
         {
             httpClient = serviceProvider.GetRequiredService<HttpClient>();
+            httpClient.DefaultRequestHeaders.UserAgent.ParseAdd(Core.CoreEnvironment.CommonUA);
+
             this.serviceProvider = serviceProvider;
 
             DisplayName = fileName;
@@ -171,7 +177,7 @@ internal sealed class WelcomeViewModel : ObservableObject
         /// 异步下载并解压
         /// </summary>
         /// <returns>任务</returns>
-        public async Task DownloadAndExtractAsync()
+        public async Task<bool> DownloadAndExtractAsync()
         {
             ILogger<DownloadSummary> logger = serviceProvider.GetRequiredService<ILogger<DownloadSummary>>();
             try
@@ -189,6 +195,7 @@ internal sealed class WelcomeViewModel : ObservableObject
                         await ThreadHelper.SwitchToMainThreadAsync();
                         ProgressValue = 1;
                         Description = SH.ViewModelWelcomeDownloadSummaryComplete;
+                        return true;
                     }
                 }
             }
@@ -197,13 +204,17 @@ internal sealed class WelcomeViewModel : ObservableObject
                 logger.LogError(ex, "Download Static Zip failed");
                 await ThreadHelper.SwitchToMainThreadAsync();
                 Description = SH.ViewModelWelcomeDownloadSummaryException;
+                return false;
             }
         }
 
         private void UpdateProgressStatus(StreamCopyState status)
         {
-            Description = $"{Converters.ToFileSizeString(status.BytesCopied)}/{Converters.ToFileSizeString(status.TotalBytes)}";
-            ProgressValue = status.TotalBytes == 0 ? 0 : (double)status.BytesCopied / status.TotalBytes;
+            if (Interlocked.Increment(ref updateCount) % 40 == 0)
+            {
+                Description = $"{Converters.ToFileSizeString(status.BytesCopied)}/{Converters.ToFileSizeString(status.TotalBytes)}";
+                ProgressValue = status.TotalBytes == 0 ? 0 : (double)status.BytesCopied / status.TotalBytes;
+            }
         }
 
         private void ExtractFiles(Stream stream)
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hutao/GachaLog/EndIds.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hutao/GachaLog/EndIds.cs
new file mode 100644
index 00000000..4769d29f
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hutao/GachaLog/EndIds.cs
@@ -0,0 +1,75 @@
+// Copyright (c) DGP Studio. All rights reserved.
+// Licensed under the MIT license.
+
+using Snap.Hutao.Web.Hoyolab.Hk4e.Event.GachaInfo;
+
+namespace Snap.Hutao.Web.Hutao.GachaLog;
+
+/// <summary>
+/// 末尾Id 字典
+/// </summary>
+internal sealed class EndIds
+{
+    /// <summary>
+    /// 新手祈愿
+    /// </summary>
+    [JsonPropertyName("100")]
+    public long NoviceWish { get; set; }
+
+    /// <summary>
+    /// 常驻祈愿
+    /// </summary>
+    [JsonPropertyName("200")]
+    public long StandardWish { get; set; }
+
+    /// <summary>
+    /// 角色活动祈愿
+    /// </summary>
+    [JsonPropertyName("301")]
+    public long AvatarEventWish { get; set; }
+
+    /// <summary>
+    /// 武器活动祈愿
+    /// </summary>
+    [JsonPropertyName("302")]
+    public long WeaponEventWish { get; set; }
+
+    /// <summary>
+    /// 获取 Last Id
+    /// </summary>
+    /// <param name="type">类型</param>
+    /// <returns>Last Id</returns>
+    public long this[GachaConfigType type]
+    {
+        get
+        {
+            return type switch
+            {
+                GachaConfigType.NoviceWish => NoviceWish,
+                GachaConfigType.StandardWish => StandardWish,
+                GachaConfigType.AvatarEventWish => AvatarEventWish,
+                GachaConfigType.WeaponEventWish => WeaponEventWish,
+                _ => 0,
+            };
+        }
+
+        set
+        {
+            switch (type)
+            {
+                case GachaConfigType.NoviceWish:
+                    NoviceWish = value;
+                    break;
+                case GachaConfigType.StandardWish:
+                    StandardWish = value;
+                    break;
+                case GachaConfigType.AvatarEventWish:
+                    AvatarEventWish = value;
+                    break;
+                case GachaConfigType.WeaponEventWish:
+                    WeaponEventWish = value;
+                    break;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hutao/GachaLog/GachaItem.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hutao/GachaLog/GachaItem.cs
new file mode 100644
index 00000000..d7c72a00
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hutao/GachaLog/GachaItem.cs
@@ -0,0 +1,39 @@
+// Copyright (c) DGP Studio. All rights reserved.
+// Licensed under the MIT license.
+
+using Snap.Hutao.Web.Hoyolab.Hk4e.Event.GachaInfo;
+
+namespace Snap.Hutao.Web.Hutao.GachaLog;
+
+/// <summary>
+/// 服务器接口使用的祈愿记录物品
+/// </summary>
+internal sealed class GachaItem
+{
+    /// <summary>
+    /// 祈愿记录分类
+    /// </summary>
+    public GachaConfigType GachaType { get; set; }
+
+    /// <summary>
+    /// 祈愿记录查询分类
+    /// 合并保底的卡池使用此属性
+    /// 仅4种（不含400）
+    /// </summary>
+    public GachaConfigType QueryType { get; set; }
+
+    /// <summary>
+    /// 物品Id
+    /// </summary>
+    public int ItemId { get; set; }
+
+    /// <summary>
+    /// 获取时间
+    /// </summary>
+    public DateTimeOffset Time { get; set; }
+
+    /// <summary>
+    /// Id
+    /// </summary>
+    public long Id { get; set; }
+}
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/Hutao/HomaGachaLogClient.cs b/src/Snap.Hutao/Snap.Hutao/Web/Hutao/HomaGachaLogClient.cs
new file mode 100644
index 00000000..065ad9fb
--- /dev/null
+++ b/src/Snap.Hutao/Snap.Hutao/Web/Hutao/HomaGachaLogClient.cs
@@ -0,0 +1,145 @@
+// Copyright (c) DGP Studio. All rights reserved.
+// Licensed under the MIT license.
+
+using Snap.Hutao.Core.DependencyInjection.Annotation.HttpClient;
+using Snap.Hutao.Service.Hutao;
+using Snap.Hutao.Web.Hoyolab;
+using Snap.Hutao.Web.Hoyolab.Hk4e.Event.GachaInfo;
+using Snap.Hutao.Web.Hutao.GachaLog;
+using Snap.Hutao.Web.Response;
+using System.Net.Http;
+
+namespace Snap.Hutao.Web.Hutao;
+
+/// <summary>
+/// 胡桃祈愿记录API客户端
+/// </summary>
+[HttpClient(HttpClientConfiguration.Default)]
+internal sealed class HomaGachaLogClient
+{
+    private readonly HttpClient httpClient;
+    private readonly JsonSerializerOptions options;
+    private readonly ILogger<HomaGachaLogClient> logger;
+
+    /// <summary>
+    /// 构造一个新的胡桃祈愿记录API客户端
+    /// </summary>
+    /// <param name="httpClient">http客户端</param>
+    /// <param name="serviceProvider">服务提供器</param>
+    public HomaGachaLogClient(HttpClient httpClient, IServiceProvider serviceProvider)
+    {
+        options = serviceProvider.GetRequiredService<JsonSerializerOptions>();
+        logger = serviceProvider.GetRequiredService<ILogger<HomaGachaLogClient>>();
+
+        this.httpClient = httpClient;
+
+        HutaoUserOptions hutaoUserOptions = serviceProvider.GetRequiredService<HutaoUserOptions>();
+        httpClient.DefaultRequestHeaders.Authorization = new("Bearer", hutaoUserOptions.Token);
+    }
+
+    /// <summary>
+    /// 异步获取 Uid 列表
+    /// </summary>
+    /// <param name="token">取消令牌</param>
+    /// <returns>Uid 列表</returns>
+    public async Task<Response<List<string>>> GetUidsAsync(CancellationToken token = default)
+    {
+        Response<List<string>>? resp = await httpClient
+            .TryCatchGetFromJsonAsync<Response<List<string>>>(HutaoEndpoints.GachaLogUids, options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 异步获取末尾 Id
+    /// </summary>
+    /// <param name="uid">uid</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>末尾Id</returns>
+    public async Task<Response<EndIds>> GetEndIdsAsync(PlayerUid uid, CancellationToken token = default)
+    {
+        Response<EndIds>? resp = await httpClient
+            .TryCatchGetFromJsonAsync<Response<EndIds>>(HutaoEndpoints.GachaLogEndIds(uid.Value), options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 异步获取云端祈愿记录
+    /// </summary>
+    /// <param name="uid">uid</param>
+    /// <param name="endIds">末尾 Id</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>云端祈愿记录</returns>
+    public async Task<Response<List<GachaItem>>> RetrieveGachaItemsAsync(PlayerUid uid, EndIds endIds, CancellationToken token = default)
+    {
+        UidAndEndIds uidAndEndIds = new(uid, endIds);
+
+        Response<List<GachaItem>>? resp = await httpClient
+            .TryCatchPostAsJsonAsync<UidAndEndIds, Response<List<GachaItem>>>(HutaoEndpoints.GachaLogRetrieve, uidAndEndIds, options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 异步上传祈愿记录物品
+    /// </summary>
+    /// <param name="uid">uid</param>
+    /// <param name="gachaItems">祈愿记录</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>响应</returns>
+    public async Task<Response.Response> UploadGachaItemsAsync(PlayerUid uid, List<GachaItem> gachaItems, CancellationToken token = default)
+    {
+        UidAndItems uidAndItems = new(uid, gachaItems);
+
+        Response.Response? resp = await httpClient
+            .TryCatchPostAsJsonAsync<UidAndItems, Response<List<GachaItem>>>(HutaoEndpoints.GachaLogUpload, uidAndItems, options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    /// <summary>
+    /// 异步删除祈愿记录
+    /// </summary>
+    /// <param name="uid">uid</param>
+    /// <param name="token">取消令牌</param>
+    /// <returns>响应</returns>
+    public async Task<Response.Response> DeleteGachaItemsAsync(PlayerUid uid, CancellationToken token = default)
+    {
+        Response.Response? resp = await httpClient
+            .TryCatchGetFromJsonAsync<Response<List<GachaItem>>>(HutaoEndpoints.GachaLogDelete(uid), options, logger, token)
+            .ConfigureAwait(false);
+
+        return Response.Response.DefaultIfNull(resp);
+    }
+
+    private sealed class UidAndEndIds
+    {
+        public UidAndEndIds(PlayerUid uid, EndIds endIds)
+        {
+            Uid = uid.Value;
+            EndIds = endIds;
+        }
+
+        public string Uid { get; }
+
+        public EndIds EndIds { get; }
+    }
+
+    private sealed class UidAndItems
+    {
+        public UidAndItems(PlayerUid uid, List<GachaItem> gachaItems)
+        {
+            Uid = uid.Value;
+            Items = gachaItems;
+        }
+
+        public string Uid { get; set; } = default!;
+
+        public List<GachaItem> Items { get; set; } = default!;
+    }
+}
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Web/HutaoEndpoints.cs b/src/Snap.Hutao/Snap.Hutao/Web/HutaoEndpoints.cs
index 07d6a55e..d1754e26 100644
--- a/src/Snap.Hutao/Snap.Hutao/Web/HutaoEndpoints.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Web/HutaoEndpoints.cs
@@ -1,6 +1,8 @@
 // Copyright (c) DGP Studio. All rights reserved.
 // Licensed under the MIT license.
 
+using Snap.Hutao.Web.Hoyolab;
+
 namespace Snap.Hutao.Web;
 
 /// <summary>
@@ -16,11 +18,48 @@ internal static class HutaoEndpoints
     /// </summary>
     public const string StaticHutao = "static.hut.ao";
 
-    #region Passport
+    #region GachaLog
 
     /// <summary>
-    /// 获取注册验证码
+    /// 获取末尾Id
     /// </summary>
+    /// <param name="uid">uid</param>
+    /// <returns>获取末尾Id Url</returns>
+    public static string GachaLogEndIds(PlayerUid uid)
+    {
+        return $"{HomaSnapGenshinApi}/GachaLog/EndIds?Uid={uid.Value}";
+    }
+
+    /// <summary>
+    /// 获取祈愿记录
+    /// </summary>
+    public const string GachaLogRetrieve = $"{HomaSnapGenshinApi}/GachaLog/Retrieve";
+
+    /// <summary>
+    /// 上传祈愿记录
+    /// </summary>
+    public const string GachaLogUpload = $"{HomaSnapGenshinApi}/GachaLog/Upload";
+
+    /// <summary>
+    /// 获取Uid列表
+    /// </summary>
+    public const string GachaLogUids = $"{HomaSnapGenshinApi}/GachaLog/Uids";
+
+    /// <summary>
+    /// 删除祈愿记录
+    /// </summary>
+    /// <returns>删除祈愿记录 Url</returns>
+    public static string GachaLogDelete(PlayerUid uid)
+    {
+        return $"{HomaSnapGenshinApi}/GachaLog/Delete?Uid={uid.Value}";
+    }
+    #endregion
+
+        #region Passport
+
+        /// <summary>
+        /// 获取注册验证码
+        /// </summary>
     public const string PassportVerify = $"{HomaSnapGenshinApi}/Passport/Verify";
 
     /// <summary>
@@ -121,14 +160,6 @@ internal static class HutaoEndpoints
     }
     #endregion
 
-    #region Patcher
-
-    /// <summary>
-    /// 胡桃检查更新
-    /// </summary>
-    public const string PatcherHutaoStable = $"{PatcherDGPStudioApi}/hutao/stable";
-    #endregion
-
     #region Static & Zip
 
     /// <summary>
@@ -170,7 +201,6 @@ internal static class HutaoEndpoints
 
     private const string HomaSnapGenshinApi = "https://homa.snapgenshin.com";
     private const string HutaoMetadataSnapGenshinApi = "https://hutao-metadata.snapgenshin.com";
-    private const string PatcherDGPStudioApi = "https://patcher.dgp-studio.cn";
     private const string StaticSnapGenshinApi = "https://static.snapgenshin.com";
     private const string StaticZipSnapGenshinApi = "https://static-zip.snapgenshin.com";
 }
\ No newline at end of file
diff --git a/src/Snap.Hutao/Snap.Hutao/Win32/StructExtension.cs b/src/Snap.Hutao/Snap.Hutao/Win32/StructExtension.cs
index 149ac382..eae27ce2 100644
--- a/src/Snap.Hutao/Snap.Hutao/Win32/StructExtension.cs
+++ b/src/Snap.Hutao/Snap.Hutao/Win32/StructExtension.cs
@@ -32,6 +32,17 @@ internal static class StructExtension
         return new((int)(rectInt32.X * scale), (int)(rectInt32.Y * scale), (int)(rectInt32.Width * scale), (int)(rectInt32.Height * scale));
     }
 
+    /// <summary>
+    /// 比例缩放
+    /// </summary>
+    /// <param name="sizeInt32">源</param>
+    /// <param name="scale">比例</param>
+    /// <returns>结果</returns>
+    public static SizeInt32 Scale(this SizeInt32 sizeInt32, double scale)
+    {
+        return new((int)(sizeInt32.Width * scale), (int)(sizeInt32.Height * scale));
+    }
+
     /// <summary>
     /// 尺寸
     /// </summary>