diff --git a/background_light.jpg b/background_light.jpg
new file mode 100644
index 0000000..aa7fe4c
Binary files /dev/null and b/background_light.jpg differ
diff --git a/exam/Styles/light.css b/exam/Styles/light.css
index 8443996..189076c 100644
--- a/exam/Styles/light.css
+++ b/exam/Styles/light.css
@@ -2,7 +2,7 @@ body {
     font-family: 'HarmonyOS Sans SC Regular', 'Roboto', Arial, sans-serif;
     margin: 0;
     padding: 0;
-    background: url('../../background.jpg') no-repeat center center fixed;
+    background: url('../../background_light.jpg') no-repeat center center fixed;
     background-size: cover;
     animation: fadeIn 1s;
     color: #333;
@@ -50,7 +50,7 @@ body::-webkit-scrollbar {
     padding: 20px;
     max-width: 1400px;
     margin: auto;
-    background-color: rgba(255, 255, 255, 0.8);
+    background-color: rgba(255, 255, 255, 0);
 }
 
 h1 {
@@ -93,7 +93,7 @@ h1 {
 }
 
 .clock-section, .info-section, .right-column {
-    background-color: rgba(255, 255, 255, 0.8);
+    background-color: rgba(255, 255, 255, 0.2);
     backdrop-filter: blur(10px);
     padding: 20px;
     box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
@@ -120,7 +120,7 @@ table {
     border-collapse: collapse;
     margin-top: 20px;
     border: 1px solid #ccc;
-    background-color: rgba(255, 255, 255, 0.8);
+    background-color: rgba(255, 255, 255, 0.5);
 }
 
 th, td {