diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/CanvasHelper.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/CanvasHelper.cs
index 6952be0..172cfd2 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/CanvasHelper.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Helper/CanvasHelper.cs
@@ -46,7 +46,7 @@ namespace BetterLyrics.WinUI3.Helper
                 return new OpacityEffect
                 {
                     Source = backgroundFontEffect,
-                    Opacity = (float)(lyricsLine.OpacityTransition.Value * lyricsLayerOpacity),
+                    Opacity = (float)Math.Clamp(lyricsLine.OpacityTransition.Value * lyricsLayerOpacity, 0, 1),
                 };
             }
             else
@@ -60,7 +60,7 @@ namespace BetterLyrics.WinUI3.Helper
                         BorderMode = EffectBorderMode.Soft,
                         Optimization = EffectOptimization.Speed,
                     },
-                    Opacity = (float)Math.Max(lyricsLine.OpacityTransition.Value * lyricsLayerOpacity, 0),
+                    Opacity = (float)Math.Clamp(lyricsLine.OpacityTransition.Value * lyricsLayerOpacity, 0, 1),
                 };
             }
         }
@@ -119,7 +119,7 @@ namespace BetterLyrics.WinUI3.Helper
                     Source = foregroundFontEffect,
                     AlphaMask = mask,
                 },
-                BlurAmount = (float)glowEffectAmount,
+                BlurAmount = (float)Math.Clamp(glowEffectAmount, 0, 100),
                 Optimization = EffectOptimization.Speed,
             };
         }
@@ -358,7 +358,7 @@ namespace BetterLyrics.WinUI3.Helper
                     Source = foregroundFontEffect,
                     AlphaMask = mask,
                 },
-                Opacity = (float)opacity,
+                Opacity = (float)Math.Clamp(opacity, 0, 1),
             };
         }
 
@@ -372,7 +372,7 @@ namespace BetterLyrics.WinUI3.Helper
                     AlphaMask = mask,
                 },
                 ShadowColor = shadowColor,
-                BlurAmount = (float)shadowAmount,
+                BlurAmount = (float)Math.Clamp(shadowAmount, 0, 100),
                 Optimization = EffectOptimization.Speed,
             };
         }
@@ -386,7 +386,7 @@ namespace BetterLyrics.WinUI3.Helper
                     Source = foregroundFontEffect,
                     AlphaMask = mask,
                 },
-                Opacity = (float)opacity,
+                Opacity = (float)Math.Clamp(opacity, 0, 1),
             };
         }
 
diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/LyricsSearchService/LyricsSearchService.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/LyricsSearchService/LyricsSearchService.cs
index d2a0187..cd9f17a 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/LyricsSearchService/LyricsSearchService.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/Services/LyricsSearchService/LyricsSearchService.cs
@@ -592,7 +592,7 @@ namespace BetterLyrics.WinUI3.Services.LyricsSearchService
 
                     lyricsSearchResult.Raw = response?.Lrc?.Lyric;
                     lyricsSearchResult.Translation = response?.Tlyric?.Lyric;
-                    lyricsSearchResult.Transliteration = response?.Romalrc.Lyric;
+                    lyricsSearchResult.Transliteration = response?.Romalrc?.Lyric;
                     lyricsSearchResult.Reference = $"https://music.163.com/song?id={neteaseResult.Id}";
                 }
                 else if (result is KugouSearchResult kugouResult)
diff --git a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Draw.cs b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Draw.cs
index 440f46a..fea0e1d 100644
--- a/BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Draw.cs
+++ b/BetterLyrics.WinUI3/BetterLyrics.WinUI3/ViewModels/LyricsRendererViewModel/LyricsRendererViewModel.Draw.cs
@@ -370,7 +370,7 @@ namespace BetterLyrics.WinUI3.ViewModels.LyricsRendererViewModel
                     combinedDs.DrawImage(new OpacityEffect
                     {
                         Source = effectLayer,
-                        Opacity = (float)Math.Max(line.HighlightOpacityTransition.Value * _lyricsOpacityTransition.Value, 0),
+                        Opacity = (float)Math.Clamp(line.HighlightOpacityTransition.Value * _lyricsOpacityTransition.Value, 0, 1),
                     });
 
                     if (i == _playingLineIndex)