diff --git a/src/App.vue b/src/App.vue
index 6451d22..e9be18b 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -241,41 +241,39 @@ body {
 .rich-content {
   padding: 24px 0;
   font-size: 16px;
-  line-height: 1.7;
-  color: var(--text-primary);
+  line-height: 1.6;
+  color: #333;
   word-wrap: break-word;
 }
 
 .rich-content h1,
 .rich-content h2,
 .rich-content h3 {
-  color: var(--text-primary);
-  margin: 32px 0 16px;
-  font-weight: 600;
+  margin: 24px 0 16px;
+  color: #000;
+  line-height: 1.3;
 }
 
 .rich-content h2 {
-  font-size: 20px;
-  border-left: 4px solid var(--primary-color);
-  padding-left: 12px;
-  margin-left: -4px;
+  font-size: 1.2rem;
+  font-weight: 600;
 }
 
 .rich-content p {
   margin-bottom: 16px;
+  text-align: justify;
 }
 
 .rich-content strong {
   font-weight: 600;
-  color: var(--text-primary);
+  color: #000;
 }
 
 .rich-content img {
   max-width: 100%;
   height: auto;
-  border-radius: 12px;
-  margin: 16px 0;
-  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
+  display: block;
+  margin: 16px auto;
 }
 
 .rich-content table {
@@ -283,8 +281,6 @@ body {
   border-collapse: collapse;
   margin: 20px 0;
   font-size: 14px;
-  display: block;
-  overflow-x: auto;
 }
 
 .rich-content th,