增加了可选的曲线拖尾渲染功能，同时保留了原有的直线拖尾

src/ConfigManager.cs

@@ -72,6 +72,7 @@ public static class ConfigManager
         public static double EffectOpacity { get; set; } = 1.0;
         public static double EffectSpeed { get; set; } = 1.0;
         public static bool UseLinkedAnimationSpeed { get; set; } = true;
+        public static bool ApplyCurveDraw { get; set; } = false;
         public static double TrailAnimationSpeed { get; set; } = 1.0;
         public static double ClickAnimationSpeed { get; set; } = 1.0;
         public static int TrailRefreshRate { get; set; } = 40;
@@ -130,6 +131,7 @@ public static void Load()
                         EffectOpacity = Math.Clamp(Convert.ToDouble(key.GetValue("EffectOpacity", 1.0)), 0.1, 1.0);
                         EffectSpeed = Math.Clamp(Convert.ToDouble(key.GetValue("EffectSpeed", 1.0)), 0.2, 3.0);
                         UseLinkedAnimationSpeed = Convert.ToBoolean(key.GetValue("UseLinkedAnimationSpeed", true));
+                        ApplyCurveDraw = Convert.ToBoolean(key.GetValue("ApplyCurveDraw", false));
                         TrailAnimationSpeed = Math.Clamp(Convert.ToDouble(key.GetValue("TrailAnimationSpeed", EffectSpeed)), 0.2, 3.0);
                         ClickAnimationSpeed = Math.Clamp(Convert.ToDouble(key.GetValue("ClickAnimationSpeed", EffectSpeed)), 0.2, 3.0);
                         TrailRefreshRate = Math.Clamp(Convert.ToInt32(key.GetValue("TrailRefreshRate", 40)), 10, 240);
@@ -532,6 +534,7 @@ public static void ResetAndClear()
                     EffectOpacity = 1.0;
                     EffectSpeed = 1.0;
                     UseLinkedAnimationSpeed = true;
+                    ApplyCurveDraw = false;
                     TrailAnimationSpeed = 1.0;
                     ClickAnimationSpeed = 1.0;
                     TrailRefreshRate = 40;

src/ControlPanelWindow.xaml

@@ -524,6 +524,10 @@
                                                               Checked="LinkedAnimationSpeed_Changed" Unchecked="LinkedAnimationSpeed_Changed"/>
                                                     <TextBlock x:Name="TxtLinkedSpeedHint" Text="关闭此项后可单独加快或减慢拖尾衰减与移动粒子，而不影响点击波纹与爆发粒子，与下方「拖尾刷新率」不同。" FontSize="11" Foreground="#999" Margin="0,0,0,10" TextWrapping="Wrap"/>
 
+                                                    <CheckBox Name="CheckApplyCurveDraw" Content="采用曲线拖尾" Style="{StaticResource ToggleSwitch}" Margin="0,0,0,4"
+                                                              Checked="CurveDraw_Changed" Unchecked="CurveDraw_Changed"/>
+                                                    <TextBlock x:Name="TxtCurveDrawHint" Text="建议在60Hz及以上刷新率开启" FontSize="11" Foreground="#999" Margin="0,0,0,10" TextWrapping="Wrap"/>
+
                                                     <StackPanel Name="PanelUnifiedAnimationSpeed" Margin="0,0,0,15">
                                                         <DockPanel LastChildFill="False">
                                                             <TextBlock x:Name="TxtAnimSpeed" Text="动画播放速度" Foreground="#555" FontSize="13" VerticalAlignment="Center"/>

src/ControlPanelWindow.xaml.cs

@@ -584,6 +584,7 @@
             SliderScale.Value = ConfigManager.EffectScale;
             SliderOpacity.Value = ConfigManager.EffectOpacity * 100;
             CheckLinkedAnimationSpeed.IsChecked = ConfigManager.UseLinkedAnimationSpeed;
+            CheckApplyCurveDraw.IsChecked = ConfigManager.ApplyCurveDraw;
             SliderSpeed.Value = ConfigManager.EffectSpeed;
             SliderTrailAnimSpeed.Value = ConfigManager.TrailAnimationSpeed;
             SliderClickAnimSpeed.Value = ConfigManager.ClickAnimationSpeed;
@@ -1317,6 +1318,7 @@
             App.Overlay?.UpdateColor(ConfigManager.ParticleColor);
             App.Overlay?.UpdateEffectSettings(effectScale, effectOpacity, trailSp, clickSp);
             App.Overlay?.UpdateTrailRefreshRate(trailRefreshRate);
+            App.Overlay?.SetCurveDraw(CheckApplyCurveDraw.IsChecked ?? false);
 
             VisualResetOverlay.Visibility = Visibility.Collapsed;
             System.Windows.MessageBox.Show(
@@ -1423,6 +1425,7 @@
             ConfigManager.Save("ClickTriggerType", clickType);
             ConfigManager.Save("EnableMiddleClickTrigger", middleClickEnabled);
             ConfigManager.Save("ScreenshotCompatibilityMode", screenshotCompatibilityEnabled);
+            ConfigManager.Save("ApplyCurveDraw", CheckApplyCurveDraw.IsChecked ?? false);
 
             string sidebarBackgroundPath = TxtSidebarBackgroundPath?.Text?.Trim() ?? string.Empty;
             if (!string.IsNullOrWhiteSpace(sidebarBackgroundPath))
@@ -1484,6 +1487,7 @@
             App.Overlay?.RefreshEnvironmentFilterState();
             App.Overlay?.UpdateTouchMode(isTouchscreenEnabled);
             App.Overlay?.UpdateScreenshotCompatibilityMode(screenshotCompatibilityEnabled);
+            App.Overlay?.SetCurveDraw(CheckApplyCurveDraw.IsChecked ?? false);
             if (!previousEnabledScreenIds.SetEquals(selectedIds))
             {
                 App.Overlay?.RefreshScreenSelection();
@@ -1586,7 +1590,7 @@
             string? exePath = AutoStartManager.ResolveExecutablePath(
                 Environment.ProcessPath,
                 Process.GetCurrentProcess().MainModule?.FileName,
                 Assembly.GetExecutingAssembly().Location,
                 AppDomain.CurrentDomain.BaseDirectory);
 
             if (string.IsNullOrEmpty(exePath)) return;
@@ -1694,6 +1698,11 @@
             if (!IsLoaded) return;
         }
 
+        private void CurveDraw_Changed(object sender, RoutedEventArgs e)
+        {
+            if (!IsLoaded) return;
+        }
+
         private void LinkedAnimationSpeed_Changed(object sender, RoutedEventArgs e)
         {
             if (!IsLoaded || _suspendLinkedAnimationUiHandlers)

src/MainWindow.xaml.cs

@@ -213,6 +213,11 @@ public void UpdateTrailRefreshRate(int hz)
             _ = hz;
         }
 
+        public void SetCurveDraw(bool enabled)
+        {
+            ExecuteScript($"window.ApplyCurveDraw = {(enabled ? "true" : "false")};");
+        }
+
         public void UpdateTouchMode(bool enabled)
         {
             ConfigManager.IsTouchscreenMode = enabled;

src/OverlayManager.cs

@@ -146,6 +146,7 @@ public void UpdateScreenshotCompatibilityMode(bool enabled)
             ForEachOverlay(w => w.UpdateScreenshotCompatibilityMode(enabled));
             SyncScreenshotCompatCaptureSurfaces();
         }
+        public void SetCurveDraw(bool enabled) => ForEachOverlay(w => w.SetCurveDraw(enabled));
         public bool IsEffectSuppressedByEnvironment() => _isSuppressedByEnvironment;
         public void RefreshEnvironmentFilterState()
         {

src/Resources/Strings.en.resx

@@ -586,6 +586,12 @@ Download now?</value>
     <data name="Visual_LinkedSpeedHint" xml:space="preserve">
       <value>When off, trail and click speeds are independent of trail refresh rate below.</value>
     </data>
+    <data name="Visual_CurveDraw" xml:space="preserve">
+      <value>Use curved trail lines</value>
+    </data>
+    <data name="Visual_CurveDrawHint" xml:space="preserve">
+      <value>Recommended for 60Hz and above</value>
+    </data>
     <data name="Visual_Opacity" xml:space="preserve">
       <value>Global opacity</value>
     </data>

src/Resources/Strings.ja.resx

@@ -586,6 +586,12 @@
     <data name="Visual_LinkedSpeedHint" xml:space="preserve">
       <value>オフにするとトレイルとクリックの速度を個別に設定できます（下の更新率とは別）。</value>
     </data>
+    <data name="Visual_CurveDraw" xml:space="preserve">
+      <value>曲線トレイルを使用</value>
+    </data>
+    <data name="Visual_CurveDrawHint" xml:space="preserve">
+      <value>60Hz以上のリフレッシュレートでの使用を推奨します</value>
+    </data>
     <data name="Visual_Opacity" xml:space="preserve">
       <value>全体の不透明度</value>
     </data>

src/Resources/Strings.resx

@@ -586,6 +586,12 @@
     <data name="Visual_LinkedSpeedHint" xml:space="preserve">
       <value>关闭此项后可单独加快或减慢拖尾衰减与移动粒子，而不影响点击波纹与爆发粒子，与下方「拖尾刷新率」不同。</value>
     </data>
+    <data name="Visual_CurveDraw" xml:space="preserve">
+      <value>采用曲线拖尾</value>
+    </data>
+    <data name="Visual_CurveDrawHint" xml:space="preserve">
+      <value>建议在60Hz及以上刷新率开启</value>
+    </data>
     <data name="Visual_Opacity" xml:space="preserve">
       <value>全局不透明度</value>
     </data>

src/UiLocalizer.cs

@@ -93,6 +93,8 @@ public static void ApplyControlPanel(ControlPanelWindow w)
             w.TxtVisualOpacity.Text = Localization.Get("Visual_Opacity");
             w.CheckLinkedAnimationSpeed.Content = Localization.Get("Visual_LinkedSpeed");
             w.TxtLinkedSpeedHint.Text = Localization.Get("Visual_LinkedSpeedHint");
+            w.CheckApplyCurveDraw.Content = Localization.Get("Visual_CurveDraw");
+            w.TxtCurveDrawHint.Text = Localization.Get("Visual_CurveDrawHint");
             w.TxtAnimSpeed.Text = Localization.Get("Visual_AnimSpeed");
             w.TxtTrailAnimSpeed.Text = Localization.Get("Visual_TrailAnimSpeed");
             w.TxtClickAnimSpeed.Text = Localization.Get("Visual_ClickAnimSpeed");

src/Web/index.html

@@ -337,23 +337,53 @@
                 ctx.shadowOffsetY = 0;
 
                 const lastIdx = pts.length - 1;
-                for (let i = 0; i < lastIdx; i++) {
-                    const alphaStart = i / lastIdx;
-                    const alphaEnd = (i + 1) / lastIdx;
-                    const a0 = pts[i];
-                    const a1 = pts[i + 1];
+                // 每段的透明度基于数组索引位置，而非空间位置
+                if (window.ApplyCurveDraw) {
+                    // 逐段渲染（Catmull-Rom → Cubic Bezier 曲线版）
+                    for (let i = 0; i < lastIdx; i++) {
+                        const a0 = pts[i];
+                        const a1 = pts[i + 1];
+
+                        // Catmull-Rom 控制点：CP1 = P_i + (P_{i+1} - P_{i-1}) / 6
+                        //                      CP2 = P_{i+1} - (P_{i+2} - P_i) / 6
+                        const prev = i > 0 ? pts[i - 1] : a0;
+                        const next = i < lastIdx - 1 ? pts[i + 2] : a1;
+                        const cp1x = a0.x + (a1.x - prev.x) / 6;
+                        const cp1y = a0.y + (a1.y - prev.y) / 6;
+                        const cp2x = a1.x - (next.x - a0.x) / 6;
+                        const cp2y = a1.y - (next.y - a0.y) / 6;
+
+                        const alphaStart = i / lastIdx;
+                        const alphaEnd = (i + 1) / lastIdx;
+                        const segGrad = ctx.createLinearGradient(a0.x, a0.y, a1.x, a1.y);
+                        segGrad.addColorStop(0, `rgba(${this.color}, ${alphaStart})`);
+                        segGrad.addColorStop(1, `rgba(${this.color}, ${alphaEnd})`);
 
-                    const segGrad = ctx.createLinearGradient(a0.x, a0.y, a1.x, a1.y);
-                    segGrad.addColorStop(0, `rgba(${this.color}, ${alphaStart})`);
-                    segGrad.addColorStop(1, `rgba(${this.color}, ${alphaEnd})`);
-
-                    ctx.beginPath();
-                    ctx.moveTo(a0.x, a0.y);
-                    ctx.lineTo(a1.x, a1.y);
-                    ctx.strokeStyle = segGrad;
-                    ctx.stroke();
+                        ctx.beginPath();
+                        ctx.moveTo(a0.x, a0.y);
+                        ctx.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, a1.x, a1.y);
+                        ctx.strokeStyle = segGrad;
+                        ctx.stroke();
+                    }
+                } else {
+                    // 逐段渲染（直线版）
+                    for (let i = 0; i < lastIdx; i++) {
+                        const alphaStart = i / lastIdx;
+                        const alphaEnd = (i + 1) / lastIdx;
+                        const a0 = pts[i];
+                        const a1 = pts[i + 1];
+
+                        const segGrad = ctx.createLinearGradient(a0.x, a0.y, a1.x, a1.y);
+                        segGrad.addColorStop(0, `rgba(${this.color}, ${alphaStart})`);
+                        segGrad.addColorStop(1, `rgba(${this.color}, ${alphaEnd})`);
+
+                        ctx.beginPath();
+                        ctx.moveTo(a0.x, a0.y);
+                        ctx.lineTo(a1.x, a1.y);
+                        ctx.strokeStyle = segGrad;
+                        ctx.stroke();
+                    }
                 }
-
                 ctx.shadowColor = 'transparent';
             }