diff --git a/src/components/AnnouncementDetail.css b/src/components/AnnouncementDetail.css
new file mode 100644
index 0000000..5ca87c1
--- /dev/null
+++ b/src/components/AnnouncementDetail.css
@@ -0,0 +1,64 @@
+.announcement-container {
+    max-width: 800px;
+    margin: 0 auto;
+    padding: 20px;
+  }
+  
+  .back-button {
+    background: none;
+    border: none;
+    color: #1890ff;
+    font-size: 16px;
+    cursor: pointer;
+    margin-bottom: 20px;
+  }
+  
+  .announcement-detail {
+    background: white;
+    padding: 25px;
+    border-radius: 8px;
+    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+  }
+  
+  .announcement-header {
+    border-bottom: 1px solid #f0f0f0;
+    padding-bottom: 15px;
+    margin-bottom: 20px;
+  }
+  
+  .announcement-header h1 {
+    margin: 0 0 10px 0;
+    font-size: 24px;
+  }
+  
+  .announcement-meta {
+    display: flex;
+    gap: 15px;
+    color: #666;
+    font-size: 14px;
+    align-items: center;
+  }
+  
+  .category-badge {
+    background: #e6f7ff;
+    color: #1890ff;
+    padding: 2px 8px;
+    border-radius: 4px;
+    font-size: 12px;
+  }
+  
+  .announcement-content {
+    line-height: 1.8;
+    font-size: 15px;
+  }
+  
+  .announcement-content p {
+    margin: 0 0 16px 0;
+  }
+  
+  .error-message {
+    text-align: center;
+    padding: 50px;
+    color: #ff4d4f;
+    font-size: 16px;
+  }
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