diff --git a/ry-h5/pages/signin/index.uvue b/ry-h5/pages/signin/index.uvue
index ffac255..aefe86f 100644
--- a/ry-h5/pages/signin/index.uvue
+++ b/ry-h5/pages/signin/index.uvue
@@ -84,10 +84,10 @@
 import { useCamera } from '@/composables/useCamera'
 
 const videoId = 'signin-video'
-// A4 纸: 从顶边到底边的一竖条, 水平位置在 60%~70% 宽度 (签到人手机号/身份证号所在列) 做高斯模糊脱敏
+// A4 纸: 从顶边到底边的一竖条, 水平位置在 75%~85% 宽度 (签到人手机号/身份证号所在列) 做高斯模糊脱敏
 // 签到表支持连拍多张: shots 攒批 + 提交全部
 const { captured, errorMsg, startCamera, flipCamera, takePhoto, retake, shots, addShot, removeShot, submitAll } =
-	useCamera(videoId, { start: 0.6, end: 0.7, radius: 20 })
+	useCamera(videoId, { start: 0.75, end: 0.85, radius: 20 })
 
 function goBack() {
 	uni.navigateBack()