diff --git a/src/Common.css b/src/Common.css
index d6dfff8..2ffd30d 100644
--- a/src/Common.css
+++ b/src/Common.css
@@ -18,12 +18,11 @@
 body::after {
   content: '';
   position: fixed;
-  inset: -30vh -30vw;
+  inset: 0;
   z-index: 9999;
   pointer-events: none;
   background-image: url('images/watermark.svg');
   background-repeat: repeat;
-  transform: rotate(-30deg);
 }
 
 body.root-dark-mode::after {
diff --git a/src/images/watermark.svg b/src/images/watermark.svg
index 4cf2efd..c83410d 100644
--- a/src/images/watermark.svg
+++ b/src/images/watermark.svg
@@ -1,4 +1,3 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="360" height="180" viewBox="0 0 360 180">
-  <text x="170" y="55" text-anchor="middle" dominant-baseline="middle" font-size="50" fill="rgba(0,0,0,0.016)" font-family="sans-serif">请勿截屏</text>
-  <text x="130" y="145" text-anchor="middle" dominant-baseline="middle" font-size="50" fill="rgba(0,0,0,0.016)" font-family="sans-serif">请勿截屏</text>
+<svg xmlns="http://www.w3.org/2000/svg" width="220" height="140" viewBox="0 0 220 140">
+  <text x="110" y="70" text-anchor="middle" dominant-baseline="middle" font-size="18" fill="rgba(0,0,0,0.035)" font-family="sans-serif" transform="rotate(-22 110 70)">请勿截屏</text>
 </svg>