修改促销、优化页面布局

Change-Id: Iae813b5b6557efa7059fe6d94bc32e96c984e4ea
diff --git a/src/pages/Forum/posts-main/ForumPage.css b/src/pages/Forum/posts-main/ForumPage.css
index 5fd64a2..4eb280f 100644
--- a/src/pages/Forum/posts-main/ForumPage.css
+++ b/src/pages/Forum/posts-main/ForumPage.css
@@ -1,8 +1,8 @@
 .forum-page {
-    color: #fff;
+    color: #453228;
     /* background-color: #5F4437; */
     /* background: linear-gradient(180deg, #5F4437, #9c737b); */
-    background: #333;
+    background: #f8f3ef;
     /* background-color: #5F4437; */
     min-height: 100vh;
     font-family: Arial, sans-serif;
@@ -37,20 +37,13 @@
     align-items: center;
   }
   
-  .avatar {
-    width: 36px;
-    height: 36px;
-    border-radius: 50%;
-    margin-right: 10px;
-  }
-  
   .nickname {
     font-weight: bold;
   }
   
-  .cover-image {
-    max-height: 80px;
-    max-width: 120px;
+  .cover {
+    max-height: 320px;
+    max-width: 320px;
     object-fit: cover;
     border-radius: 6px;
   }