diff --git a/web/src/views/Workflow/components/Nodes/AddNode.tsx b/web/src/views/Workflow/components/Nodes/AddNode.tsx
index f9561a44..13e80150 100644
--- a/web/src/views/Workflow/components/Nodes/AddNode.tsx
+++ b/web/src/views/Workflow/components/Nodes/AddNode.tsx
@@ -1,8 +1,14 @@
+/*
+ * @Author: ZhaoYing 
+ * @Date: 2026-02-09 18:31:30 
+ * @Last Modified by:   ZhaoYing 
+ * @Last Modified time: 2026-02-09 18:31:30 
+ */
 import { useState } from 'react';
 import { Popover } from 'antd';
 import clsx from 'clsx';
 import type { ReactShapeConfig } from '@antv/x6-react-shape';
-import { nodeLibrary, graphNodeLibrary, edgeAttrs } from '../../constant';
+import { nodeLibrary, graphNodeLibrary, edgeAttrs, nodeWidth } from '../../constant';
 import { useTranslation } from 'react-i18next';
 
 const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
@@ -10,6 +16,7 @@ const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
   const { t } = useTranslation();
   const [open, setOpen] = useState(false);
 
+  // Handle node selection from popover and create new node replacing the add-node placeholder
   const handleNodeSelect = (selectedNodeType: any) => {
     const parentBBox = node.getBBox();
     const cycleId = data.cycle;
@@ -32,7 +39,7 @@ const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
       },
     });
 
-    // 将新节点添加为父节点的子节点
+    // Add new node as child of parent node
     if (cycleId) {
       const parentNode = graph.getNodes().find((n: any) => n.getData()?.id === cycleId);
       if (parentNode) {
@@ -61,14 +68,14 @@ const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
       });
     });
 
-    // 删除所有add-node类型的节点
+    // Remove all add-node type nodes
     graph.getNodes().forEach((n: any) => {
       if (n.getData()?.type === 'add-node' && n.getData()?.cycle === cycleId) {
         n.remove();
       }
     });
 
-    // 自动调整循环节点大小
+    // Automatically adjust loop node size
     const loopNode = graph.getNodes().find((n: any) => n.getData()?.id === cycleId);
     if (loopNode) {
       const adjustLoopSize = () => {
@@ -85,7 +92,7 @@ const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
           }, { minX: Infinity, minY: Infinity, maxX: -Infinity, maxY: -Infinity });
           
           const padding = 20;
-          const newWidth = Math.max(240, bounds.maxX - bounds.minX + padding * 2);
+          const newWidth = Math.max(nodeWidth, bounds.maxX - bounds.minX + padding * 2);
           const newHeight = Math.max(120, bounds.maxY - bounds.minY + padding * 2);
           
           loopNode.prop('size', { width: newWidth, height: newHeight });
@@ -94,7 +101,7 @@ const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
       
       adjustLoopSize();
       
-      // 监听子节点移动事件
+      // Listen to child node movement events
       const childNodes = graph.getNodes().filter((n: any) => n.getData()?.cycle === cycleId);
       childNodes.forEach((childNode: any) => {
         childNode.on('change:position', adjustLoopSize);
@@ -104,7 +111,7 @@ const AddNode: ReactShapeConfig['component'] = ({ node, graph }) => {
   };
 
   const content = (
-    <div style={{ maxHeight: '300px', overflowY: 'auto', minWidth: '240px' }}>
+    <div style={{ maxHeight: '300px', overflowY: 'auto', minWidth: `${nodeWidth}px'` }}>
       {nodeLibrary.map((category, categoryIndex) => {
         const filteredNodes = category.nodes.filter(nodeType => 
           nodeType.type !== 'start' && nodeType.type !== 'end' && nodeType.type !== 'iteration' && nodeType.type !== 'loop' && nodeType.type !== 'cycle-start'
diff --git a/web/src/views/Workflow/components/PortClickHandler.tsx b/web/src/views/Workflow/components/PortClickHandler.tsx
index 0a1e3906..ec898bc8 100644
--- a/web/src/views/Workflow/components/PortClickHandler.tsx
+++ b/web/src/views/Workflow/components/PortClickHandler.tsx
@@ -1,7 +1,13 @@
+/*
+ * @Author: ZhaoYing 
+ * @Date: 2026-02-09 18:30:28 
+ * @Last Modified by:   ZhaoYing 
+ * @Last Modified time: 2026-02-09 18:30:28 
+ */
 import { useEffect, useState } from 'react';
 import { Popover } from 'antd';
 import { useTranslation } from 'react-i18next';
-import { nodeLibrary, graphNodeLibrary, edgeAttrs } from '../constant';
+import { nodeLibrary, graphNodeLibrary, edgeAttrs, nodeWidth } from '../constant';
 
 interface PortClickHandlerProps {
   graph: any;
@@ -32,13 +38,14 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
     };
   }, []);
 
+  // Handle node selection from popover menu and create new node with edge connection
   const handleNodeSelect = (selectedNodeType: any) => {
     if (!sourceNode || !graph) return;
 
     const sourceNodeData = sourceNode.getData();
     const sourceNodeType = sourceNodeData?.type;
     
-    // 如果是cycle-start节点，需要处理add-node节点
+    // If it's a cycle-start node, handle the add-node placeholder
     let addNodePosition = null;
     if (sourceNodeType === 'cycle-start' && sourceNodeData.cycle) {
       const cycleId = sourceNodeData.cycle;
@@ -53,38 +60,38 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
       }
     }
     
-    // 计算新节点位置，避免重叠
+    // Calculate new node position to avoid overlapping
     const sourceBBox = sourceNode.getBBox();
     const nodeWidth = graphNodeLibrary[selectedNodeType.type]?.width || 120;
     const nodeHeight = graphNodeLibrary[selectedNodeType.type]?.height || 88;
     const horizontalSpacing = sourceNodeType === 'cycle-start' ? 40 : 80;
     const verticalSpacing = 10;
     
-    // 获取源连接桩的group信息
+    // Get source port group information
     const sourcePortInfo = sourceNode.getPorts().find((p: any) => p.id === sourcePort);
     const sourcePortGroup = sourcePortInfo?.group || sourcePort;
     console.log('sourcePortGroup', sourcePortGroup, sourcePortInfo)
     
-    // 如果有add-node位置，使用该位置，否则计算新位置
+    // If add-node position exists, use it; otherwise calculate new position
     let newX, newY;
     if (addNodePosition) {
       newX = addNodePosition.x;
       newY = addNodePosition.y;
     } else {
-      // 根据连接桩位置决定节点放置方向
+      // Determine node placement direction based on port position
       if (sourcePortGroup === 'left') {
-        // 左侧连接桩，在左侧添加节点
+        // Left port: add node to the left
         newX = sourceBBox.x - nodeWidth*2 - horizontalSpacing;
         newY = sourceBBox.y;
       } else {
-        // 右侧连接桩，在右侧添加节点
+        // Right port: add node to the right
         newX = sourceBBox.x + sourceBBox.width + horizontalSpacing;
         newY = sourceBBox.y;
       }
       
-      // 检查位置是否与现有节点重叠（只考虑与当前节点相连的节点）
+      // Check if position overlaps with existing nodes (only consider connected nodes)
       const checkOverlap = (x: number, y: number) => {
-        // 获取与源节点相连的节点
+        // Get nodes connected to the source node
         const connectedNodes = new Set();
         graph.getConnectedEdges(sourceNode).forEach((edge: any) => {
           const sourceId = edge.getSourceCellId();
@@ -95,20 +102,20 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
         
         return graph.getNodes().some((node: any) => {
           if (node.id === sourceNode.id) return false;
-          if (!connectedNodes.has(node.id)) return false; // 只考虑相连的节点
+          if (!connectedNodes.has(node.id)) return false; // Only consider connected nodes
           const bbox = node.getBBox();
           return !(x + nodeWidth < bbox.x || x > bbox.x + bbox.width || 
                   y + nodeHeight < bbox.y || y > bbox.y + bbox.height);
         });
       };
       
-      // 如果位置被占用，向下寻找空位
+      // If position is occupied, search downward for empty space
       while (checkOverlap(newX, newY)) {
         newY += nodeHeight + verticalSpacing;
       }
     }
     
-    // 创建新节点
+    // Create new node
     const id = `${selectedNodeType.type.replace(/-/g, '_')}_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`
     const newNode = graph.addNode({
       ...(graphNodeLibrary[selectedNodeType.type] || graphNodeLibrary.default),
@@ -120,12 +127,12 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
         type: selectedNodeType.type,
         icon: selectedNodeType.icon,
         name: t(`workflow.${selectedNodeType.type}`),
-        cycle: sourceNodeData.cycle, // 继承源节点的cycle
+        cycle: sourceNodeData.cycle, // Inherit cycle from source node
         config: selectedNodeType.config || {}
       },
     });
 
-    // 将新节点添加为父节点的子节点
+    // Add new node as child of parent node
     if (sourceNodeData.cycle) {
       const parentNode = graph.getNodes().find((n: any) => n.getData()?.id === sourceNodeData.cycle);
       if (parentNode) {
@@ -133,16 +140,16 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
       }
     }
 
-    // 创建连线
+    // Create edge connection
     setTimeout(() => {
       const targetPorts = newNode.getPorts();
       let targetPort;
       
       if (sourcePortGroup === 'left') {
-        // 从左侧连接桩连出，连接到新节点的右侧
+        // Connect from left port to new node's right side
         targetPort = targetPorts.find((port: any) => port.group === 'right')?.id || 'right';
       } else {
-        // 从右侧连接桩连出，连接到新节点的左侧
+        // Connect from right port to new node's left side
         targetPort = targetPorts.find((port: any) => port.group === 'left')?.id || 'left';
       }
       
@@ -153,7 +160,7 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
         // zIndex: sourceNodeData.cycle && sourceNodeType == 'cycle-start' ? 1 : sourceNodeData.cycle ? 2 : 0
       });
       
-      // 循环节点内子节点通过连接桩添加时，调整循环节点大小
+      // Adjust loop node size when child node is added via port within loop node
       const cycleId = sourceNodeData.cycle;
       if (cycleId) {
         const parentNode = graph.getNodes().find((n: any) => n.getData()?.id === cycleId);
@@ -174,7 +181,7 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
               
               const padding = 20;
               const bottomPadding = 50;
-              const newWidth = Math.max(240, bounds.maxX - bounds.minX + padding * 2);
+              const newWidth = Math.max(nodeWidth, bounds.maxX - bounds.minX + padding * 2);
               const newHeight = Math.max(120, bounds.maxY - bounds.minY + padding + bottomPadding);
 
               parentNode.prop('size', { width: newWidth, height: newHeight });
@@ -183,7 +190,7 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
           
           adjustLoopSize();
           
-          // 监听子节点移动事件
+          // Listen to child node movement events
           const childNodes = graph.getNodes().filter((n: any) => n.getData()?.cycle === cycleId);
           childNodes.forEach((childNode: any) => {
             childNode.on('change:position', adjustLoopSize);
@@ -192,7 +199,7 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
       }
     }, 50);
 
-    // 清理临时元素
+    // Clean up temporary element
     if (tempElement) {
       document.body.removeChild(tempElement);
       setTempElement(null);
@@ -210,7 +217,7 @@ const PortClickHandler: React.FC<PortClickHandlerProps> = ({ graph }) => {
   };
 
   const content = (
-    <div style={{ maxHeight: '300px', overflowY: 'auto', minWidth: '240px' }}>
+    <div style={{ maxHeight: '300px', overflowY: 'auto', minWidth: `${nodeWidth}px` }}>
       {nodeLibrary.map((category, categoryIndex) => {
         const sourceNodeData = sourceNode?.getData();
         const isChildOfLoop = sourceNodeData?.cycle && graph?.getNodes().find((n: any) => n.getData()?.id === sourceNodeData.cycle && n.getData()?.type === 'loop');
diff --git a/web/src/views/Workflow/components/Properties/CaseList/index.tsx b/web/src/views/Workflow/components/Properties/CaseList/index.tsx
index f76bd7db..34708513 100644
--- a/web/src/views/Workflow/components/Properties/CaseList/index.tsx
+++ b/web/src/views/Workflow/components/Properties/CaseList/index.tsx
@@ -1,3 +1,9 @@
+/*
+ * @Author: ZhaoYing 
+ * @Date: 2026-02-09 18:24:53 
+ * @Last Modified by:   ZhaoYing 
+ * @Last Modified time: 2026-02-09 18:24:53 
+ */
 import { type FC } from 'react'
 import clsx from 'clsx'
 import { useTranslation } from 'react-i18next';
@@ -6,7 +12,7 @@ import { Form, Button, Select, Space, Divider, InputNumber, Radio, type SelectPr
 import type { Suggestion } from '../../Editor/plugin/AutocompletePlugin'
 import VariableSelect from '../VariableSelect'
 import Editor from '../../Editor'
-import { edgeAttrs, portArgs } from '../../../constant'
+import { edgeAttrs, portTextAttrs, nodeWidth } from '../../../constant'
 
 interface CaseListProps {
   value?: Array<{ logical_operator: 'and' | 'or'; expressions: { left: string; operator: string; right: string; input_type?: string; }[] }>;
@@ -52,15 +58,16 @@ const CaseList: FC<CaseListProps> = ({
   const { t } = useTranslation();
   const form = Form.useFormInstance();
 
+  // Update node ports based on case count changes (add/remove cases)
   const updateNodePorts = (caseCount: number, removedCaseIndex?: number) => {
     if (!selectedNode || !graphRef?.current) return;
     
-    // 获取当前端口数量来判断是添加还是删除操作
+    // Get current port count to determine if it's an add or remove operation
     const currentPorts = selectedNode.getPorts().filter((port: any) => port.group === 'right');
-    const currentCaseCount = currentPorts.length - 1; // 减去ELSE端口
+    const currentCaseCount = currentPorts.length - 1; // Exclude ELSE port
     const isAddingCase = removedCaseIndex === undefined && caseCount > currentCaseCount;
     
-    // 保存现有连线信息（包括左侧端口连线）
+    // Save existing edge connections (including left-side port connections)
     const existingEdges = graphRef.current.getEdges().filter((edge: any) => 
       edge.getSourceCellId() === selectedNode.id || edge.getTargetCellId() === selectedNode.id
     );
@@ -73,7 +80,7 @@ const CaseList: FC<CaseListProps> = ({
       isIncoming: edge.getTargetCellId() === selectedNode.id
     }));
     
-    // 移除所有现有的右侧端口
+    // Remove all existing right-side ports
     const existingPorts = selectedNode.getPorts();
     existingPorts.forEach((port: any) => {
       if (port.group === 'right') {
@@ -81,43 +88,52 @@ const CaseList: FC<CaseListProps> = ({
       }
     });
     
-    // 计算新的节点高度：基础高度88px + 每个额外port增加30px
+    // Calculate new node height: base height 88px + 30px for each additional port
     const baseHeight = 88;
     const totalPorts = caseCount + 1; // IF/ELIF + ELSE
     const newHeight = baseHeight + (totalPorts - 2) * 30;
 
-    selectedNode.prop('size', { width: 240, height: newHeight })
-    
-    // 添加 IF 端口
+    selectedNode.prop('size', { width: nodeWidth, height: newHeight })
+
+    // Add IF port
     selectedNode.addPort({
       id: 'CASE1',
       group: 'right',
-      args: portArgs,
-      attrs: { text: { text: 'IF', fontSize: 12, fill: '#5B6167' }}
-    });
+      args: {
+        x: nodeWidth,
+        y: 42,
+      },
+      attrs: { text: { text: 'IF', ...portTextAttrs } }
+    })
     
-    // 添加 ELIF 端口
+    // Add ELIF ports
     for (let i = 1; i < caseCount; i++) {
       selectedNode.addPort({
         id: `CASE${i + 1}`,
         group: 'right',
-        args: portArgs,
-        attrs: { text: { text: 'ELIF', fontSize: 12, fill: '#5B6167' }}
+        args: {
+          x: nodeWidth,
+          y: 30 * i + 42,
+        },
+        attrs: { text: { text: 'ELIF', ...portTextAttrs }}
       });
     }
     
-    // 添加 ELSE 端口
+    // Add ELSE port
     selectedNode.addPort({
       id: `CASE${caseCount + 1}`,
       group: 'right',
-      args: portArgs,
-      attrs: { text: { text: 'ELSE', fontSize: 12, fill: '#5B6167' }}
+      args: {
+        x: nodeWidth,
+        y: 30 * caseCount + 42,
+      },
+      attrs: { text: { text: 'ELSE', ...portTextAttrs }}
     });
     
-    // 恢复连线
+    // Restore edge connections
     setTimeout(() => {
       edgeConnections.forEach(({ edge, sourcePortId, targetCellId, targetPortId, sourceCellId, isIncoming }: any) => {
-        // 如果是进入连线（左侧端口），直接恢复
+        // If it's an incoming connection (left-side port), restore directly
         if (isIncoming) {
           const sourceCell = graphRef.current?.getCellById(sourceCellId);
           if (sourceCell) {
@@ -131,10 +147,10 @@ const CaseList: FC<CaseListProps> = ({
           return;
         }
         
-        // 处理右侧端口连线
+        // Handle right-side port connections
         const originalCaseNumber = parseInt(sourcePortId.match(/CASE(\d+)/)?.[1] || '0');
         
-        // 如果是删除操作且是被删除的端口，删除连线
+        // If it's a remove operation and the port is being removed, delete the connection
         if (removedCaseIndex !== undefined && originalCaseNumber === removedCaseIndex + 1) {
           graphRef.current?.removeCell(edge);
           return;
@@ -142,22 +158,22 @@ const CaseList: FC<CaseListProps> = ({
         
         let newPortId = sourcePortId;
         
-        // 如果是删除操作，需要重新映射端口ID
+        // If it's a remove operation, remap port IDs
         if (removedCaseIndex !== undefined) {
           if (originalCaseNumber > removedCaseIndex + 1) {
-            // 被删除端口之后的端口，编号向前移动
+            // Ports after the removed port, shift numbering forward
             newPortId = `CASE${originalCaseNumber - 1}`;
           }
-          // ELSE端口始终映射到新的ELSE端口位置
+          // ELSE port always maps to the new ELSE port position
           else if (originalCaseNumber === currentCaseCount + 1) {
             newPortId = `CASE${caseCount + 1}`;
           }
         } else if (isAddingCase) {
-          // 如果是添加操作，ELSE端口需要重新映射
+          // If it's an add operation, ELSE port needs to be remapped
           if (originalCaseNumber === currentCaseCount + 1) {
-            newPortId = `CASE${caseCount + 1}`; // 新的ELSE端口
+            newPortId = `CASE${caseCount + 1}`; // New ELSE port
           }
-          // 新添加的端口不恢复任何连线
+          // Newly added ports don't restore any connections
         }
         
         const newPorts = selectedNode.getPorts();
diff --git a/web/src/views/Workflow/components/Properties/CategoryList/index.tsx b/web/src/views/Workflow/components/Properties/CategoryList/index.tsx
index 22163905..63c64583 100644
--- a/web/src/views/Workflow/components/Properties/CategoryList/index.tsx
+++ b/web/src/views/Workflow/components/Properties/CategoryList/index.tsx
@@ -1,3 +1,9 @@
+/*
+ * @Author: ZhaoYing 
+ * @Date: 2026-02-09 18:34:33 
+ * @Last Modified by:   ZhaoYing 
+ * @Last Modified time: 2026-02-09 18:34:33 
+ */
 import { type FC } from 'react';
 import { useTranslation } from 'react-i18next';
 import { Button, Form, Space } from 'antd';
@@ -5,7 +11,7 @@ import { Graph, Node } from '@antv/x6';
 
 import Editor from '../../Editor';
 import type { Suggestion } from '../../Editor/plugin/AutocompletePlugin'
-import { edgeAttrs, portArgs } from '../../../constant'
+import { edgeAttrs, portTextAttrs, nodeWidth } from '../../../constant'
 
 interface CategoryListProps {
   parentName: string;
@@ -19,10 +25,11 @@ const CategoryList: FC<CategoryListProps> = ({ parentName, selectedNode, graphRe
   const form = Form.useFormInstance();
   const formValues = Form.useWatch([parentName], form);
 
+  // Update node ports based on category count changes (add/remove categories)
   const updateNodePorts = (caseCount: number, removedCaseIndex?: number) => {
     if (!selectedNode || !graphRef?.current) return;
 
-    // 保存现有连线信息（包括左侧端口连线）
+    // Save existing edge connections (including left-side port connections)
     const existingEdges = graphRef.current.getEdges().filter((edge: any) =>
       edge.getSourceCellId() === selectedNode.id || edge.getTargetCellId() === selectedNode.id
     );
@@ -35,7 +42,7 @@ const CategoryList: FC<CategoryListProps> = ({ parentName, selectedNode, graphRe
       isIncoming: edge.getTargetCellId() === selectedNode.id
     }));
 
-    // 移除所有现有的右侧端口
+    // Remove all existing right-side ports
     const existingPorts = selectedNode.getPorts();
     existingPorts.forEach((port: any) => {
       if (port.group === 'right') {
@@ -43,28 +50,30 @@ const CategoryList: FC<CategoryListProps> = ({ parentName, selectedNode, graphRe
       }
     });
 
-    // 计算新的节点高度：基础高度88px + 每个额外port增加30px
+    // Calculate new node height: base height 88px + 30px for each additional port
     const baseHeight = 88;
-    const totalPorts = caseCount + 1; // IF/ELIF + ELSE
-    const newHeight = baseHeight + (totalPorts - 2) * 30;
+    const newHeight = baseHeight + (caseCount - 2) * 30;
 
-    selectedNode.prop('size', { width: 240, height: newHeight < baseHeight ? baseHeight : newHeight })
+    selectedNode.prop('size', { width: nodeWidth, height: newHeight < baseHeight ? baseHeight : newHeight })
 
-    // 添加 分类 端口
+    // Add category ports
     for (let i = 0; i < caseCount; i++) {
       selectedNode.addPort({
         id: `CASE${i + 1}`,
         group: 'right',
-        args: portArgs,
-        attrs: { text: { text: `分类${i + 1}`, fontSize: 12, fill: '#5B6167' } }
+        args: {
+          x: nodeWidth,
+          y: 30 * i + 42,
+        },
+        attrs: { text: { text: `分类${i + 1}`, ...portTextAttrs } }
       });
     }
-    // 恢复连线
+    // Restore edge connections
     setTimeout(() => {
       edgeConnections.forEach(({ edge, sourcePortId, targetCellId, targetPortId, sourceCellId, isIncoming }: any) => {
         graphRef.current?.removeCell(edge);
         
-        // 如果是进入连线（左侧端口），直接恢复
+        // If it's an incoming connection (left-side port), restore directly
         if (isIncoming) {
           const sourceCell = graphRef.current?.getCellById(sourceCellId);
           if (sourceCell) {
@@ -77,22 +86,22 @@ const CategoryList: FC<CategoryListProps> = ({ parentName, selectedNode, graphRe
           return;
         }
 
-        // 处理右侧端口连线
+        // Handle right-side port connections
         const originalCaseNumber = parseInt(sourcePortId.match(/CASE(\d+)/)?.[1] || '0');
 
-        // 如果是被删除的端口，不重新创建连线
+        // If it's a removed port, don't recreate the connection
         if (removedCaseIndex !== undefined && originalCaseNumber === removedCaseIndex + 1) {
           return;
         }
 
         let newPortId = sourcePortId;
 
-        // 如果删除了某个端口，需要重新映射后续端口的ID
+        // If a port was removed, remap subsequent port IDs
         if (removedCaseIndex !== undefined && originalCaseNumber > removedCaseIndex + 1) {
           newPortId = `CASE${originalCaseNumber - 1}`;
         }
 
-        // 检查新端口是否存在
+        // Check if the new port exists
         const newPorts = selectedNode.getPorts();
         const matchingPort = newPorts.find((port: any) => port.id === newPortId);
 
diff --git a/web/src/views/Workflow/components/Properties/HttpRequest/index.tsx b/web/src/views/Workflow/components/Properties/HttpRequest/index.tsx
index a6b50e33..ae5aab01 100644
--- a/web/src/views/Workflow/components/Properties/HttpRequest/index.tsx
+++ b/web/src/views/Workflow/components/Properties/HttpRequest/index.tsx
@@ -1,7 +1,14 @@
+/*
+ * @Author: ZhaoYing 
+ * @Date: 2026-02-09 18:35:43 
+ * @Last Modified by:   ZhaoYing 
+ * @Last Modified time: 2026-02-09 18:35:43 
+ */
 import { type FC, useRef, useState } from "react";
 import { useTranslation } from 'react-i18next'
 import { Form, Row, Col, Select, Button, Divider, InputNumber, Switch, Input } from 'antd'
 import { CaretDownOutlined, CaretRightOutlined, SettingOutlined } from '@ant-design/icons';
+
 import Editor from '../../Editor'
 import type { Suggestion } from '../../Editor/plugin/AutocompletePlugin'
 import AuthConfigModal from './AuthConfigModal'
@@ -9,6 +16,7 @@ import type { AuthConfigModalRef, HttpRequestConfigForm } from './types'
 import VariableSelect from "../VariableSelect";
 import MessageEditor from '../MessageEditor'
 import EditableTable from './EditableTable'
+import { portTextAttrs } from '../../../constant'
 
 const HttpRequest: FC<{ options: Suggestion[]; selectedNode?: any; graphRef?: any; }> = ({
   options,
@@ -32,6 +40,7 @@ const HttpRequest: FC<{ options: Suggestion[]; selectedNode?: any; graphRef?: an
     form.setFieldValue(['body', 'data'], undefined)
   }
 
+  // Handle error handling method change and update node ports accordingly
   const handleChangeErrorHandleMethod = (method: string) => {
     form.setFieldsValue({
       error_handle: {
@@ -42,21 +51,21 @@ const HttpRequest: FC<{ options: Suggestion[]; selectedNode?: any; graphRef?: an
       }
     })
     
-    // 更新节点连接桩
+    // Update node ports
     console.log('handleChangeErrorHandleMethod', selectedNode, graphRef?.current)
     if (selectedNode && graphRef?.current) {
       const existingPorts = selectedNode.getPorts();
       const errorPort = existingPorts.find((port: any) => port.id === 'ERROR');
       
       if (method === 'branch' && !errorPort) {
-        // 添加异常节点连接桩
+        // Add error branch port
         selectedNode.addPort({
           id: 'ERROR',
           group: 'right',
-          attrs: { text: { text: t('workflow.config.http-request.errorBranch'), fontSize: 12, fill: '#5B6167' }}
+          attrs: { text: { text: t('workflow.config.http-request.errorBranch'), ...portTextAttrs }}
         });
       } else if (method !== 'branch' && errorPort) {
-        // 移除异常节点连接桩和相关连线
+        // Remove error branch port and related edges
         const edges = graphRef.current.getEdges().filter((edge: any) => 
           edge.getSourceCellId() === selectedNode.id && edge.getSourcePortId() === 'ERROR'
         );
diff --git a/web/src/views/Workflow/constant.ts b/web/src/views/Workflow/constant.ts
index a01dab9d..23b5ca23 100644
--- a/web/src/views/Workflow/constant.ts
+++ b/web/src/views/Workflow/constant.ts
@@ -2,7 +2,7 @@
  * @Author: ZhaoYing 
  * @Date: 2026-02-03 15:06:18 
  * @Last Modified by: ZhaoYing
- * @Last Modified time: 2026-02-05 14:15:13
+ * @Last Modified time: 2026-02-09 17:48:46
  */
 import LoopNode from './components/Nodes/LoopNode';
 import NormalNode from './components/Nodes/NormalNode';
@@ -518,6 +518,7 @@ export const nodeLibrary: NodeLibrary[] = [
   // },
 ];
 
+export const nodeWidth = 240;
 /**
  * Node registration library for X6 graph
  * Maps node shapes to their React components
@@ -525,13 +526,13 @@ export const nodeLibrary: NodeLibrary[] = [
 export const nodeRegisterLibrary: ReactShapeConfig[] = [
   {
     shape: 'loop-node',
-    width: 240,
+    width: nodeWidth,
     height: 120,
     component: LoopNode,
   },
   {
     shape: 'iteration-node',
-    width: 240,
+    width: nodeWidth,
     height: 120,
     component: LoopNode,
   },
@@ -543,7 +544,7 @@ export const nodeRegisterLibrary: ReactShapeConfig[] = [
   },
   {
     shape: 'condition-node',
-    width: 240,
+    width: nodeWidth,
     height: 88,
     component: ConditionNode,
   },
@@ -625,8 +626,9 @@ export const portAttrs = {
     textAnchor: 'middle',
     textVerticalAnchor: 'middle',
     pointerEvents: 'none',
-  }
+  },
 }
+export const portTextAttrs = { fontSize: 12, fill: '#5B6167' }
 
 /**
  * Unified port group configuration
@@ -638,6 +640,12 @@ const defaultPortGroups = {
   // bottom: { position: 'bottom', markup: portMarkup, attrs: portAttrs },
   left: { position: 'left', markup: portMarkup, attrs: portAttrs },
 }
+export const defaultAbsolutePortGroups = {
+  // top: { position: 'top', markup: portMarkup, attrs: portAttrs },
+  right: { position: { name: 'absolute' }, markup: portMarkup, attrs: portAttrs },
+  // bottom: { position: 'bottom', markup: portMarkup, attrs: portAttrs },
+  left: { position: 'left', markup: portMarkup, attrs: portAttrs },
+}
 /**
  * Default port items for standard nodes
  */
@@ -650,7 +658,7 @@ const defaultPortItems = [
 /**
  * Port position arguments
  */
-export const portArgs = { dy: 18 }
+export const portArgs = { x: nodeWidth, y: 42 }
 
 /**
  * Graph node library configuration
@@ -658,7 +666,7 @@ export const portArgs = { dy: 18 }
  */
 export const graphNodeLibrary: Record<string, NodeConfig> = {
   iteration: {
-    width: 240,
+    width: nodeWidth,
     height: 120,
     shape: 'iteration-node',
     ports: {
@@ -667,7 +675,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     },
   },
   loop: {
-    width: 240,
+    width: nodeWidth,
     height: 120,
     shape: 'loop-node',
     ports: {
@@ -676,33 +684,47 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     },
   },
   'if-else': {
-    width: 240,
+    width: nodeWidth,
     height: 88,
     shape: 'condition-node',
     ports: {
-      groups: defaultPortGroups,
+      groups: defaultAbsolutePortGroups,
       items: [
         { group: 'left' },
-        { group: 'right', id: 'CASE1', args: portArgs, attrs: { text: { text: 'IF', fontSize: 12, color: '#5B6167' }} },
-        { group: 'right', id: 'CASE2', args: portArgs, attrs: { text: { text: 'ELSE', fontSize: 12, color: '#5B6167' }} }
+        ...(['IF', 'ELSE'].map((text, index) => ({
+          group: 'right',
+          id: `CASE${index}`,
+          args: {
+            ...portArgs,
+            y: 30 * index + 42,
+          },
+          attrs: { text: { text: text, ...portTextAttrs } }
+        }))),
       ],
     },
   },
   'question-classifier': {
-    width: 240,
+    width: nodeWidth,
     height: 88,
     shape: 'condition-node',
     ports: {
-      groups: defaultPortGroups,
+      groups: defaultAbsolutePortGroups,
       items: [
         { group: 'left' },
-        { group: 'right', id: 'CASE1', args: portArgs, attrs: { text: { text: '分类1', fontSize: 12, color: '#5B6167' } } },
-        { group: 'right', id: 'CASE2', args: portArgs, attrs: { text: { text: '分类2', fontSize: 12, color: '#5B6167' } } }
+        ...(['分类1', '分类2'].map((text, index) => ({
+          group: 'right',
+          id: `CASE${index}`,
+          args: {
+            ...portArgs,
+            y: 30 * index + 42,
+          },
+          attrs: { text: { text: text, ...portTextAttrs } }
+        }))),
       ],
     },
   },
   start: {
-    width: 240,
+    width: nodeWidth,
     height: 64,
     shape: 'normal-node',
     ports: {
@@ -711,7 +733,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     },
   },
   end: {
-    width: 240,
+    width: nodeWidth,
     height: 64,
     shape: 'normal-node',
     ports: {
@@ -738,7 +760,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     },
   },
   default: {
-    width: 240,
+    width: nodeWidth,
     height: 64,
     shape: 'normal-node',
     ports: {
diff --git a/web/src/views/Workflow/hooks/useWorkflowGraph.ts b/web/src/views/Workflow/hooks/useWorkflowGraph.ts
index d267faf8..6042d73c 100644
--- a/web/src/views/Workflow/hooks/useWorkflowGraph.ts
+++ b/web/src/views/Workflow/hooks/useWorkflowGraph.ts
@@ -1,8 +1,8 @@
 /*
  * @Author: ZhaoYing 
  * @Date: 2026-02-03 15:17:48 
- * @Last Modified by:   ZhaoYing 
- * @Last Modified time: 2026-02-03 15:17:48 
+ * @Last Modified by: ZhaoYing
+ * @Last Modified time: 2026-02-09 18:37:01
  */
 import { useRef, useEffect, useState } from 'react';
 import { useParams } from 'react-router-dom';
@@ -12,7 +12,7 @@ import { Graph, Node, MiniMap, Snapline, Clipboard, Keyboard, type Edge } from '
 import { register } from '@antv/x6-react-shape';
 import type { PortMetadata } from '@antv/x6/lib/model/port';
 
-import { nodeRegisterLibrary, graphNodeLibrary, nodeLibrary, portMarkup, portAttrs, edgeAttrs, edge_color, edge_selected_color, portArgs } from '../constant';
+import { nodeRegisterLibrary, graphNodeLibrary, nodeLibrary, portMarkup, portAttrs, edgeAttrs, edge_color, edge_selected_color, portTextAttrs, defaultAbsolutePortGroups, nodeWidth } from '../constant';
 import type { WorkflowConfig, NodeProperties, ChatVariable } from '../types';
 import { getWorkflowConfig, saveWorkflowConfig } from '@/api/application'
 
@@ -168,6 +168,7 @@ export const useWorkflowGraph = ({
             }
           })
         }
+
         const nodeConfig = {
           ...(graphNodeLibrary[type] ?? graphNodeLibrary.default),
           id,
@@ -179,39 +180,28 @@ export const useWorkflowGraph = ({
         
         // Generate ports dynamically for if-else node based on cases
         if (type === 'if-else' && config.cases && Array.isArray(config.cases)) {
-          const caseCount = config.cases.length;
-          const totalPorts = caseCount + 1; // IF/ELIF + ELSE
+          const totalPorts = config.cases.length + 1; // IF/ELIF + ELSE
           const baseHeight = 88;
           const newHeight = baseHeight + (totalPorts - 2) * 30;
           
           const portItems: PortMetadata[] = [
             { group: 'left' },
-            { group: 'right', id: 'CASE1', args: portArgs, attrs: { text: { text: 'IF', fontSize: 12, fill: '#5B6167' }} }
           ];
-          
-          // Add ELIF ports
-          for (let i = 1; i < caseCount; i++) {
+          // Add IF/ELIF/ELSE ports
+          for (let i = 0; i < totalPorts; i++) {
             portItems.push({
               group: 'right',
               id: `CASE${i + 1}`,
-              args: portArgs,
-              attrs: { text: { text: 'ELIF', fontSize: 12, fill: '#5B6167' }}
+              args: {
+                x: nodeWidth,
+                y: 30 * i + 42,
+              },
+              attrs: { text: { text: i === 0 ? 'IF' : i === totalPorts - 1 ? 'ELSE' : 'ELIF', ...portTextAttrs } }
             });
           }
           
-          // Add ELSE port
-          portItems.push({
-            group: 'right',
-            id: `CASE${caseCount + 1}`,
-            args: portArgs,
-            attrs: { text: { text: 'ELSE', fontSize: 12, fill: '#5B6167' }}
-          });
-          
           nodeConfig.ports = {
-            groups: {
-              right: { position: 'right', markup: portMarkup, attrs: portAttrs },
-              left: { position: 'left', markup: portMarkup, attrs: portAttrs },
-            },
+            groups: defaultAbsolutePortGroups,
             items: portItems
           };
           
@@ -222,7 +212,7 @@ export const useWorkflowGraph = ({
         if (type === 'question-classifier' && config.categories && Array.isArray(config.categories)) {
           const categoryCount = config.categories.length;
           const baseHeight = 88;
-          const newHeight = baseHeight + (categoryCount - 1) * 30;
+          const newHeight = baseHeight + (categoryCount - 2) * 30;
           
           const portItems: PortMetadata[] = [
             { group: 'left' }
@@ -233,16 +223,16 @@ export const useWorkflowGraph = ({
             portItems.push({
               group: 'right',
               id: `CASE${index + 1}`,
-              args: portArgs,
-              attrs: { text: { text: `分类${index + 1}`, fontSize: 12, fill: '#5B6167' }}
+              args: {
+                x: nodeWidth,
+                y: 30 * index + 42,
+              },
+              attrs: { text: { text: `分类${index + 1}`, ...portTextAttrs }}
             });
           });
           
           nodeConfig.ports = {
-            groups: {
-              right: { position: 'right', markup: portMarkup, attrs: portAttrs },
-              left: { position: 'left', markup: portMarkup, attrs: portAttrs },
-            },
+            groups: defaultAbsolutePortGroups,
             items: portItems
           };
           
@@ -259,7 +249,7 @@ export const useWorkflowGraph = ({
             items: [
               { group: 'left' },
               { group: 'right', id: 'right' },
-              { group: 'right', id: 'ERROR', attrs: { text: { text: t('workflow.config.http-request.errorBranch'), fontSize: 12, fill: '#5B6167' }}}
+              { group: 'right', id: 'ERROR', attrs: { text: { text: t('workflow.config.http-request.errorBranch'), ...portTextAttrs }}}
             ]
           };
         }