添加合同和卷宗数据隔离

app/styles/main.css

@@ -200,15 +200,29 @@
   
   /* === 主内容区域 === */
   .main-content {
-    @apply flex-1 ml-[240px] transition-all duration-300 min-h-screen flex flex-col;
+    @apply ml-[240px] flex-1 transition-all duration-300 flex flex-col;
   }
   
   .main-content.sidebar-collapsed {
     @apply ml-20;
   }
   
+  /* 应用模块选择器 */
+  .app-module-selector {
+    @apply bg-white shadow-sm;
+  }
+  
+  .app-module-btn {
+    @apply transition-all duration-200 text-gray-700 hover:bg-gray-50 font-medium;
+  }
+  
+  .app-module-btn.active {
+    @apply bg-green-50 text-green-700 border border-green-200;
+  }
+  
+  /* 内容容器 */
   .content-container {
-    @apply flex-1 p-5 overflow-auto;
+    @apply p-6 bg-gray-50 flex-1 overflow-auto;
   }
   
   /* === 面包屑导航 === */