diff --git a/miniprogram/src/assets/opc-logo.png b/miniprogram/src/assets/opc-logo.png
index 14b97e9..1030cdf 100644
Binary files a/miniprogram/src/assets/opc-logo.png and b/miniprogram/src/assets/opc-logo.png differ
diff --git a/miniprogram/src/custom-tab-bar/index.scss b/miniprogram/src/custom-tab-bar/index.scss
index 72e1c2d..bebed80 100644
--- a/miniprogram/src/custom-tab-bar/index.scss
+++ b/miniprogram/src/custom-tab-bar/index.scss
@@ -117,10 +117,9 @@
 }
 
 .home-logo {
-  width: 84rpx;
-  height: 84rpx;
-  border-radius: 50%;
-  box-shadow: 0 6rpx 20rpx rgba(98,132,255,0.4);
+  width: 88rpx;
+  height: 88rpx;
+  box-shadow: 0 6rpx 20rpx rgba(147,112,219,0.35);
   transition: transform 0.2s ease, box-shadow 0.2s ease;
 }
 
@@ -131,7 +130,7 @@
 
 .tab-item--home.tab-item--active .home-logo {
   transform: scale(1.08);
-  box-shadow: 0 8rpx 28rpx rgba(98,132,255,0.55);
+  box-shadow: 0 8rpx 28rpx rgba(147,112,219,0.5);
 }
 
 .tab-item--home.tab-item--active .home-blob {