diff --git a/go.mod b/go.mod
index 214d58b..44c7629 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,7 @@ go 1.23.0
 toolchain go1.23.3
 
 require (
+	git.lxtend.com/lixiangwuxian/imagedd v0.0.0-20250510064143-ba9126d54ac6
 	github.com/bytedance/mockey v1.2.14
 	github.com/chromedp/cdproto v0.0.0-20241003230502-a4a8f7c660df
 	github.com/chromedp/chromedp v0.10.0
@@ -28,7 +29,6 @@ require (
 )
 
 require (
-	git.lxtend.com/lixiangwuxian/imagedd v0.0.0-20250510061940-c492839691e4 // indirect
 	github.com/Microsoft/go-winio v0.4.14 // indirect
 	github.com/andybalholm/brotli v1.1.1 // indirect
 	github.com/bytedance/sonic v1.11.6 // indirect
diff --git a/go.sum b/go.sum
index bfa84ee..904ca58 100644
--- a/go.sum
+++ b/go.sum
@@ -2,6 +2,8 @@ filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 git.lxtend.com/lixiangwuxian/imagedd v0.0.0-20250510061940-c492839691e4 h1:yDPaEFsQ7zj9NqLhl2iOY2bswn8+oNcGTl/1geJgeAs=
 git.lxtend.com/lixiangwuxian/imagedd v0.0.0-20250510061940-c492839691e4/go.mod h1:luas4p32Wtsywcz+8HsxIB3gf65FDDBa+3XYhm0S2b8=
+git.lxtend.com/lixiangwuxian/imagedd v0.0.0-20250510064143-ba9126d54ac6 h1:v1cEHG5kGJN5Tu+3icJ6gfrcwrXJRZQMCu8eb4goEKQ=
+git.lxtend.com/lixiangwuxian/imagedd v0.0.0-20250510064143-ba9126d54ac6/go.mod h1:luas4p32Wtsywcz+8HsxIB3gf65FDDBa+3XYhm0S2b8=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/Microsoft/go-winio v0.4.14 h1:+hMXMk01us9KgxGb7ftKQt2Xpf5hH/yky+TDA+qxleU=
diff --git a/service/beatleader/model.go b/service/beatleader/model.go
index c1cba5f..99aef2a 100644
--- a/service/beatleader/model.go
+++ b/service/beatleader/model.go
@@ -6,7 +6,6 @@ import (
 	"image/color"
 	"image/draw"
 	"log"
-	"math"
 	"os"
 	"strings"
 	"time"
@@ -619,15 +618,17 @@ func (p PlayerDataLite) LastDiffToImage(lastDayQueryData PlayerDataLite) string
 	}
 	baseboard.AddSprite(&textSpirit)
 
-	totalWidth := textImg.Bounds().Dx() + avatar.Bounds().Dx()
-	totalHeight := math.Max(float64(textImg.Bounds().Dy()), float64(avatar.Bounds().Dy()))
+	minX, minY, maxX, maxY := baseboard.GetRenderBounds()
+	totalWidth := maxX - minX
+	totalHeight := maxY - minY
 
 	background := image.NewRGBA(image.Rect(0, 0, int(totalWidth), int(totalHeight)))
 	draw.Draw(background, background.Bounds(), image.White, image.Point{}, draw.Src)
 	backgroundSpirit := sprite.Sprite{
-		Name:  "background",
-		Image: background,
-		Index: 0,
+		Name:     "background",
+		Image:    background,
+		Index:    0,
+		Position: image.Point{X: minX, Y: minY},
 	}
 	baseboard.AddSprite(&backgroundSpirit)