diff --git a/frontend/src/components/VariableInput/index.tsx b/frontend/src/components/VariableInput/index.tsx
index 00885a58..0fd0b354 100644
--- a/frontend/src/components/VariableInput/index.tsx
+++ b/frontend/src/components/VariableInput/index.tsx
@@ -1,47 +1,10 @@
 import React, { useState, useRef, useMemo, useEffect } from 'react';
-import { Command, CommandEmpty, CommandGroup, CommandItem, CommandList } from '@/components/ui/command';
 import { Input } from '@/components/ui/input';
 import { Textarea } from '@/components/ui/textarea';
 import type { VariableInputProps } from './types';
 import { detectTrigger, insertVariable, filterVariables } from './utils';
 import { collectNodeVariables, groupVariablesByNode } from '@/utils/workflow/collectNodeVariables';
 
-/**
- * 高亮渲染 ${} 变量
- */
-const highlightVariables = (text: string): React.ReactNode[] => {
-    const regex = /\$\{([^}]+)\}/g;
-    const parts: React.ReactNode[] = [];
-    let lastIndex = 0;
-    let match;
-
-    while ((match = regex.exec(text)) !== null) {
-        // 添加变量前的文本
-        if (match.index > lastIndex) {
-            parts.push(text.substring(lastIndex, match.index));
-        }
-        
-        // 添加高亮的变量
-        parts.push(
-            <span 
-                key={match.index} 
-                className="inline-block px-1.5 py-0.5 bg-blue-100 dark:bg-blue-900/30 text-blue-700 dark:text-blue-300 rounded font-mono text-sm border border-blue-200 dark:border-blue-800"
-            >
-                ${`{${match[1]}}`}
-            </span>
-        );
-        
-        lastIndex = match.index + match[0].length;
-    }
-    
-    // 添加剩余文本
-    if (lastIndex < text.length) {
-        parts.push(text.substring(lastIndex));
-    }
-    
-    return parts.length > 0 ? parts : [text];
-};
-
 /**
  * 变量输入组件
  * 支持在输入 ${ 时自动提示可用变量
@@ -115,15 +78,9 @@ const VariableInput: React.FC<VariableInputProps> = ({
     
     // 插入变量
     const handleSelectVariable = (nodeName: string, fieldName: string) => {
-        console.log('🎯 handleSelectVariable 被调用:', { nodeName, fieldName, value, triggerInfo });
-        
-        if (!inputRef.current) {
-            console.error('❌ inputRef.current 不存在');
-            return;
-        }
+        if (!inputRef.current) return;
 
         const cursorPos = inputRef.current.selectionStart || 0;
-        console.log('📍 当前光标位置:', cursorPos);
 
         // 使用工具函数插入变量
         const { newText, newCursorPos } = insertVariable(
@@ -133,8 +90,6 @@ const VariableInput: React.FC<VariableInputProps> = ({
             nodeName,
             fieldName
         );
-        
-        console.log('✅ 插入结果:', { newText, newCursorPos });
 
         // 更新值
         onChange(newText);
@@ -147,7 +102,6 @@ const VariableInput: React.FC<VariableInputProps> = ({
             if (inputRef.current) {
                 inputRef.current.focus();
                 inputRef.current.setSelectionRange(newCursorPos, newCursorPos);
-                console.log('✅ 焦点已恢复，光标已设置');
             }
         }, 0);
     };
@@ -200,10 +154,7 @@ const VariableInput: React.FC<VariableInputProps> = ({
                                 <div
                                     key={`${variable.nodeId}.${variable.fieldName}`}
                                     className="flex items-center justify-between px-3 py-2 cursor-pointer hover:bg-accent rounded-sm transition-colors"
-                                    onClick={() => {
-                                        console.log('点击变量:', variable.nodeName, variable.fieldName);
-                                        handleSelectVariable(variable.nodeName, variable.fieldName);
-                                    }}
+                                    onClick={() => handleSelectVariable(variable.nodeName, variable.fieldName)}
                                 >
                                     <span className="font-mono text-sm">{variable.fieldName}</span>
                                     <span className="ml-auto text-xs text-muted-foreground">{variable.fieldType}</span>
@@ -216,28 +167,20 @@ const VariableInput: React.FC<VariableInputProps> = ({
         );
     };
     
-    // 检测是否有变量需要高亮
-    const hasVariables = value && /\$\{[^}]+\}/.test(value);
-    
     return (
-        <div ref={containerRef} className="relative space-y-2">
+        <div ref={containerRef} className="relative">
             {/* 输入框 */}
             {renderInput()}
             
-            {/* 变量高亮预览 */}
-            {hasVariables && !showSuggestions && (
-                <div className="p-2 bg-muted/30 rounded-md border border-border text-sm">
-                    <div className="text-xs text-muted-foreground mb-1">变量预览：</div>
-                    <div className="break-words leading-relaxed">
-                        {highlightVariables(value)}
-                    </div>
-                </div>
-            )}
-            
-            {/* 变量提示弹窗 - 绝对定位 */}
+            {/* 变量提示弹窗 - 绝对定位，使用更高的 z-index */}
             {showSuggestions && (
                 <div 
-                    className="absolute top-full left-0 w-full mt-2 z-50"
+                    className="fixed mt-2 z-[9999]"
+                    style={{
+                        top: inputRef.current ? inputRef.current.getBoundingClientRect().bottom + window.scrollY + 8 : 0,
+                        left: inputRef.current ? inputRef.current.getBoundingClientRect().left + window.scrollX : 0,
+                        width: inputRef.current ? inputRef.current.getBoundingClientRect().width : 'auto',
+                    }}
                 >
                     <div className="w-full max-w-[500px] bg-popover text-popover-foreground rounded-md border shadow-lg">
                         {renderSuggestions()}
diff --git a/frontend/src/pages/Workflow/Design/nodes/NotificationNode.tsx b/frontend/src/pages/Workflow/Design/nodes/NotificationNode.tsx
index 02ad5e41..133fa2bb 100644
--- a/frontend/src/pages/Workflow/Design/nodes/NotificationNode.tsx
+++ b/frontend/src/pages/Workflow/Design/nodes/NotificationNode.tsx
@@ -1,4 +1,4 @@
-import { ConfigurableNodeDefinition, NodeType, NodeCategory } from './types';
+import {ConfigurableNodeDefinition, NodeType, NodeCategory} from './types';
 
 /**
  * 通知节点定义
@@ -14,7 +14,7 @@ export const NotificationNodeDefinition: ConfigurableNodeDefinition = {
     // 渲染配置
     renderConfig: {
         shape: 'rounded-rect',
-        size: { width: 120, height: 60 },
+        size: {width: 120, height: 60},
         icon: {
             type: 'emoji',
             content: '🔔',
@@ -29,7 +29,7 @@ export const NotificationNodeDefinition: ConfigurableNodeDefinition = {
         },
         handles: {
             input: true,
-            output: true 
+            output: true
         },
         features: {
             showBadge: true,
@@ -85,35 +85,14 @@ export const NotificationNodeDefinition: ConfigurableNodeDefinition = {
         },
         required: ["nodeName", "nodeCode", "notificationType", "title", "content", "recipients"]
     },
-
-    // 输入映射 Schema（可以引用上游节点的输出）
-    inputMappingSchema: {
-        type: "object",
-        title: "输入映射",
-        description: "配置从上游节点获取的数据",
-        properties: {
-            dynamicTitle: {
-                type: "string",
-                title: "动态标题",
-                description: "使用上游节点输出动态设置标题，如 ${upstream.buildStatus}",
-                default: ""
-            },
-            dynamicContent: {
-                type: "string",
-                title: "动态内容",
-                description: "使用上游节点输出动态设置内容，如 构建结果: ${upstream.buildStatus}",
-                format: "textarea",
-                default: ""
-            },
-            dynamicRecipients: {
-                type: "string",
-                title: "动态收件人",
-                description: "使用上游节点输出动态设置收件人",
-                default: ""
-            }
-        }
-    }
-
-    // ✅ 通知节点没有输出能力（不定义 outputs 字段）
+    outputs: [{
+        name: "status",
+        title: "执行状态",
+        type: "string",
+        enum: ["SUCCESS", "FAILURE"],
+        description: "执行的结果状态",
+        example: "SUCCESS",
+        required: true
+    }]
 };