diff --git a/css/index.css b/css/index.css
index f2f0803..1ecd87a 100644
--- a/css/index.css
+++ b/css/index.css
@@ -18,7 +18,7 @@
   width: 65vw;
   height: 39vw;
   margin: 0 auto;
-  background: url(../images/content-top.png?v=20211118) no-repeat;
+  background: url(../images/content-top.png?v=20211216) no-repeat;
   background-size: 100% 100%;
   margin-top: 3vw;
 }
@@ -32,7 +32,7 @@
 .content2 {
   width: 100vw;
   height: 112.76vw;
-  background: url(../images/content2.png?v=20211118) no-repeat;
+  background: url(../images/content2.png?v=20211216) no-repeat;
   background-size: 100% 100%;
 }
 .foot-box {
diff --git a/css/index.less b/css/index.less
index e8c9bc4..be665d6 100644
--- a/css/index.less
+++ b/css/index.less
@@ -18,7 +18,7 @@
   width: 65vw;
   height: 39vw;
   margin: 0 auto;
-  background: url(../images/content-top.png?v=20211118)no-repeat;
+  background: url(../images/content-top.png?v=20211216)no-repeat;
   background-size: 100% 100%;
   margin-top: 3vw;
 }
@@ -32,7 +32,7 @@
 .content2{
   width:100vw;
   height: 112.76vw;
-  background: url(../images/content2.png?v=20211118)no-repeat;
+  background: url(../images/content2.png?v=20211216)no-repeat;
   background-size: 100% 100%;
 }
 .foot-box{
diff --git a/images/content-top.png b/images/content-top.png
index dd49f33..4f7f30a 100644
Binary files a/images/content-top.png and b/images/content-top.png differ
diff --git a/images/content2.png b/images/content2.png
index 43ad4d8..8dbd9ea 100644
Binary files a/images/content2.png and b/images/content2.png differ