diff --git a/src/views/device/video/index.vue b/src/views/device/video/index.vue
index c5722c1..bc84be8 100644
--- a/src/views/device/video/index.vue
+++ b/src/views/device/video/index.vue
@@ -365,7 +365,7 @@ export default {
             // 重绘画布：只绘制当前正在画的线（已保存的线在另一个画布上显示，不会被清除）
             ctx.clearRect(0, 0, canvas.width, canvas.height)
             ctx.strokeStyle = '#ff0000'
-            ctx.lineWidth = 2
+            ctx.lineWidth = 3
 
             // 绘制当前正在画的线
             if (this.currentLine) {
@@ -427,7 +427,7 @@ export default {
                 const lineToDraw = this.savedLine || this.line || this.initialLine
                 if (lineToDraw) {
                     ctx.strokeStyle = '#ff0000'
-                    ctx.lineWidth = 2
+                    ctx.lineWidth = 3
                     ctx.beginPath()
                     ctx.moveTo(lineToDraw.startX, lineToDraw.startY)
                     ctx.lineTo(lineToDraw.endX, lineToDraw.endY)