diff --git a/api/app/controllers/public_share_controller.py b/api/app/controllers/public_share_controller.py
index 02c73718..354a58ef 100644
--- a/api/app/controllers/public_share_controller.py
+++ b/api/app/controllers/public_share_controller.py
@@ -583,7 +583,7 @@ async def chat(
                     event_data = event.get("data", {})
 
                     # 转换为标准 SSE 格式（字符串）
-                    sse_message = f"event: {event_type}\ndata: {json.dumps(event_data)}\n\n"
+                    sse_message = f"event: {event_type}\ndata: {json.dumps(event_data, default=str, ensure_ascii=False)}\n\n"
                     yield sse_message
 
             return StreamingResponse(
diff --git a/api/app/core/workflow/nodes/llm/node.py b/api/app/core/workflow/nodes/llm/node.py
index 6395d3b8..bfa1b99f 100644
--- a/api/app/core/workflow/nodes/llm/node.py
+++ b/api/app/core/workflow/nodes/llm/node.py
@@ -226,6 +226,7 @@ class LLMNode(BaseNode):
         Yields:
             文本片段（chunk）或完成标记
         """
+        self.typed_config = LLMNodeConfig(**self.config)
         from langgraph.config import get_stream_writer
 
         llm, prompt_or_messages = self._prepare_llm(state, True)
diff --git a/api/app/services/user_memory_service.py b/api/app/services/user_memory_service.py
index eb9b2c34..59bbc211 100644
--- a/api/app/services/user_memory_service.py
+++ b/api/app/services/user_memory_service.py
@@ -1416,11 +1416,10 @@ async def analytics_graph_data(
                 elementId(n) as id,
                 labels(n)[0] as label,
                 properties(n) as properties
-            LIMIT $limit
             """
             node_params = {
                 "group_id": end_user_id,
-                "limit": limit
+                # "limit": limit
             }
 
         # 执行节点查询
diff --git a/web/src/views/Workflow/constant.ts b/web/src/views/Workflow/constant.ts
index 593639ce..323f5649 100644
--- a/web/src/views/Workflow/constant.ts
+++ b/web/src/views/Workflow/constant.ts
@@ -502,16 +502,44 @@ interface NodeConfig {
   ports?: PortsConfig;
 }
 
-const portAttrs = {
-  circle: {
-    r: 4, magnet: true, stroke: '#155EEF', strokeWidth: 2, fill: '#155EEF', position: { top: 22 }
+// 统一的端口 markup 配置
+export const portMarkup = [
+  {
+    tagName: 'circle',
+    selector: 'body',
   },
+  {
+    tagName: 'text',
+    selector: 'label',
+  },
+];
+
+// 统一的端口属性配置
+export const portAttrs = {
+  body: {
+    r: 6, 
+    magnet: true, 
+    stroke: '#155EEF', 
+    strokeWidth: 2, 
+    fill: '#155EEF',
+  },
+  label: {
+    text: '+',
+    fontSize: 12,
+    fontWeight: 'bold',
+    fill: '#FFFFFF',
+    textAnchor: 'middle',
+    textVerticalAnchor: 'middle',
+    pointerEvents: 'none',
+  }
 }
+
+// 统一的端口组配置
 const defaultPortGroups = {
-  // top: { position: 'top', attrs: portAttrs },
-  right: { position: 'right', attrs: portAttrs },
-  // bottom: { position: 'bottom', attrs: portAttrs },
-  left: { position: 'left', attrs: portAttrs },
+  // top: { position: 'top', markup: portMarkup, attrs: portAttrs },
+  right: { position: 'right', markup: portMarkup, attrs: portAttrs },
+  // bottom: { position: 'bottom', markup: portMarkup, attrs: portAttrs },
+  left: { position: 'left', markup: portMarkup, attrs: portAttrs },
 }
 const defaultPortItems = [
   // { group: 'top' },
@@ -569,7 +597,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     height: 64,
     shape: 'normal-node',
     ports: {
-      groups: {right: { position: 'right', attrs: portAttrs }},
+      groups: {right: { position: 'right', markup: portMarkup, attrs: portAttrs }},
       items: [{ group: 'right' }],
     },
   },
@@ -578,7 +606,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     height: 64,
     shape: 'normal-node',
     ports: {
-      groups: {left: { position: 'left', attrs: portAttrs }},
+      groups: {left: { position: 'left', markup: portMarkup, attrs: portAttrs }},
       items: [{ group: 'left' }],
     },
   },
@@ -587,7 +615,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     height: 44,
     shape: 'cycle-start',
     ports: {
-      groups: {right: { position: 'right', attrs: portAttrs }},
+      groups: {right: { position: 'right', markup: portMarkup, attrs: portAttrs }},
       items: [{ group: 'right' }],
     },
   },
@@ -596,7 +624,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     height: 44,
     shape: 'add-node',
     ports: {
-      groups: {left: { position: 'left', attrs: portAttrs }},
+      groups: {left: { position: 'left', markup: portMarkup, attrs: portAttrs }},
       items: [{ group: 'left' }],
     },
   },
@@ -614,7 +642,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     height: 44,
     shape: 'cycle-start',
     ports: {
-      groups: {right: { position: 'right', attrs: portAttrs }},
+      groups: {right: { position: 'right', markup: portMarkup, attrs: portAttrs }},
       items: [{ group: 'right' }],
     },
   },
@@ -623,7 +651,7 @@ export const graphNodeLibrary: Record<string, NodeConfig> = {
     height: 44,
     shape: 'add-node',
     ports: {
-      groups: {left: { position: 'left', attrs: portAttrs }},
+      groups: {left: { position: 'left', markup: portMarkup, attrs: portAttrs }},
       items: [{ group: 'left' }],
     },
   }
diff --git a/web/src/views/Workflow/hooks/useWorkflowGraph.ts b/web/src/views/Workflow/hooks/useWorkflowGraph.ts
index dc7001e5..ce01d103 100644
--- a/web/src/views/Workflow/hooks/useWorkflowGraph.ts
+++ b/web/src/views/Workflow/hooks/useWorkflowGraph.ts
@@ -5,7 +5,7 @@ import { App } from 'antd'
 import { Graph, Node, MiniMap, Snapline, Clipboard, Keyboard, type Edge } from '@antv/x6';
 import { register } from '@antv/x6-react-shape';
 
-import { nodeRegisterLibrary, graphNodeLibrary, nodeLibrary } from '../constant';
+import { nodeRegisterLibrary, graphNodeLibrary, nodeLibrary, portMarkup, portAttrs } from '../constant';
 import type { WorkflowConfig, NodeProperties } from '../types';
 import { getWorkflowConfig, saveWorkflowConfig } from '@/api/application'
 import type { PortMetadata } from '@antv/x6/lib/model/port';
@@ -39,7 +39,6 @@ export interface UseWorkflowGraphReturn {
 
 export const edge_color = '#155EEF';
 const edge_selected_color = '#4DA8FF'
-
 export const useWorkflowGraph = ({
   containerRef,
   miniMapRef,
@@ -128,12 +127,6 @@ export const useWorkflowGraph = ({
           const baseHeight = 88;
           const newHeight = baseHeight + (totalPorts - 2) * 30;
           
-          const portAttrs = {
-            circle: {
-              r: 4, magnet: true, stroke: '#155EEF', strokeWidth: 2, fill: '#155EEF', position: { top: 22 }
-            },
-          };
-          
           const portItems: PortMetadata[] = [
             { group: 'left' },
             { group: 'right', id: 'CASE1', args: { dy: 24 }, attrs: { text: { text: 'IF', fontSize: 12, fill: '#5B6167' }} }
@@ -157,8 +150,8 @@ export const useWorkflowGraph = ({
           
           nodeConfig.ports = {
             groups: {
-              right: { position: 'right', attrs: portAttrs },
-              left: { position: 'left', attrs: portAttrs },
+              right: { position: 'right', markup: portMarkup, attrs: portAttrs },
+              left: { position: 'left', markup: portMarkup, attrs: portAttrs },
             },
             items: portItems
           };
@@ -172,12 +165,6 @@ export const useWorkflowGraph = ({
           const baseHeight = 88;
           const newHeight = baseHeight + (categoryCount - 1) * 30;
           
-          const portAttrs = {
-            circle: {
-              r: 4, magnet: true, stroke: '#155EEF', strokeWidth: 2, fill: '#155EEF', position: { top: 22 }
-            },
-          };
-          
           const portItems: PortMetadata[] = [
             { group: 'left' }
           ];
@@ -194,8 +181,8 @@ export const useWorkflowGraph = ({
           
           nodeConfig.ports = {
             groups: {
-              right: { position: 'right', attrs: portAttrs },
-              left: { position: 'left', attrs: portAttrs },
+              right: { position: 'right', markup: portMarkup, attrs: portAttrs },
+              left: { position: 'left', markup: portMarkup, attrs: portAttrs },
             },
             items: portItems
           };
@@ -205,16 +192,10 @@ export const useWorkflowGraph = ({
         
         // 如果是http-request节点，检查error_handle.method配置
         if (type === 'http-request' && (config as any).error_handle?.method === 'branch') {
-          const portAttrs = {
-            circle: {
-              r: 4, magnet: true, stroke: '#155EEF', strokeWidth: 2, fill: '#155EEF', position: { top: 22 }
-            },
-          };
-          
           nodeConfig.ports = {
             groups: {
-              right: { position: 'right', attrs: portAttrs },
-              left: { position: 'left', attrs: portAttrs },
+              right: { position: 'right', markup: portMarkup, attrs: portAttrs },
+              left: { position: 'left', markup: portMarkup, attrs: portAttrs },
             },
             items: [
               { group: 'left' },
@@ -344,13 +325,15 @@ export const useWorkflowGraph = ({
               cell: targetCell.id,
               port: targetPorts.find((port: any) => port.group === 'left')?.id || 'left'
             },
+            connector: { name: 'smooth' },
             attrs: {
               line: {
                 stroke: edge_color,
                 strokeWidth: 1,
                 targetMarker: {
-                  name: 'block',
-                  size: 8,
+                  name: 'diamond',
+                  width: 4,
+                  height: 4,
                 },
               },
             },
@@ -703,7 +686,7 @@ export const useWorkflowGraph = ({
         // router: 'orth',
         // router: 'manhattan',
         connector: {
-          name: 'rounded',
+          name: 'smooth',
           args: {
             radius: 8,
           },
@@ -723,6 +706,11 @@ export const useWorkflowGraph = ({
               line: {
                 stroke: edge_color,
                 strokeWidth: 1,
+                targetMarker: {
+                  name: 'diamond',
+                  width: 4,
+                  height: 4,
+                },
               },
             },
             zIndex: 0,