diff --git a/renderer/public/iconfont.css b/renderer/public/iconfont.css
index 6b9f716..1df423b 100644
--- a/renderer/public/iconfont.css
+++ b/renderer/public/iconfont.css
@@ -1,8 +1,8 @@
 @font-face {
   font-family: "iconfont"; /* Project id 4870215 */
-  src: url('iconfont.woff2?t=1750532923458') format('woff2'),
-       url('iconfont.woff?t=1750532923458') format('woff'),
-       url('iconfont.ttf?t=1750532923458') format('truetype');
+  src: url('iconfont.woff2?t=1751568095152') format('woff2'),
+       url('iconfont.woff?t=1751568095152') format('woff'),
+       url('iconfont.ttf?t=1751568095152') format('truetype');
 }
 
 .iconfont {
@@ -13,6 +13,14 @@
   -moz-osx-font-smoothing: grayscale;
 }
 
+.icon-pin:before {
+  content: "\e863";
+}
+
+.icon-serial:before {
+  content: "\e78f";
+}
+
 .icon-deploy:before {
   content: "\e614";
 }
diff --git a/renderer/public/iconfont.woff2 b/renderer/public/iconfont.woff2
index c6056df..51f904a 100644
Binary files a/renderer/public/iconfont.woff2 and b/renderer/public/iconfont.woff2 differ
diff --git a/renderer/src/components/main-panel/tool/auto-detector/diagram-item-record.vue b/renderer/src/components/main-panel/tool/auto-detector/diagram-item-record.vue
index ed4fd92..210e39a 100644
--- a/renderer/src/components/main-panel/tool/auto-detector/diagram-item-record.vue
+++ b/renderer/src/components/main-panel/tool/auto-detector/diagram-item-record.vue
@@ -1,21 +1,24 @@
 <template>
     <div class="diagram-item-record" v-if="props.dataView && props.dataView.tool">
+        <div class="item-status" :class="props.dataView.status">{{ props.dataView.status }}</div>
+        
         <div class="item-header">
             <span class="item-title">{{ props.dataView.tool.name }}</span>
-            <span class="item-status" :class="props.dataView.status">{{ props.dataView.status }}</span>
-        </div>
+        </div>        
+
         <div class="item-desc">{{ props.dataView.tool.description }}</div>
 
-        <div v-if="props.dataView.function !== undefined" class="item-result">
-            <div class="item-label">Function</div>
-            <div class="item-json">{{ props.dataView.function.name }}</div>
-        </div>
+        <br>
 
         <div v-if="props.dataView.function !== undefined" class="item-result">
             <span class="item-label">Arguments</span>
-            <json-render :json="props.dataView.function.arguments" />
+            <div class="code-container">
+                <json-render :json="props.dataView.function.arguments" />
+            </div>
         </div>
 
+        <br>
+
         <div v-if="props.dataView.result !== undefined" class="item-result">
             <span class="item-label">Result</span>
             <template v-if="Array.isArray(props.dataView.result)">
@@ -85,10 +88,9 @@ function formatJson(obj: any) {
 }
 
 .item-status {
-    font-size: 13px;
-    padding: 2px 10px;
+    font-size: 15px;
+    padding: 5px 0;
     border-radius: 12px;
-    margin-left: 8px;
     text-transform: capitalize;
 }
 
@@ -127,7 +129,7 @@ function formatJson(obj: any) {
 .item-json {
     border-radius: 4px;
     padding: 6px 10px;
-    font-size: 13px;
+    font-size: 15px;
     font-family: var(--code-font-family, monospace);
     margin: 2px 0 8px 0;
     white-space: pre-wrap;
@@ -137,6 +139,13 @@ function formatJson(obj: any) {
     box-sizing: border-box;
 }
 
+.code-container {
+    margin-top: 10px;
+    border-radius: .3em;
+    padding: 0 10px;
+    background-color: var(--sidebar);
+}
+
 .item-result {
     margin-top: 6px;
 }
diff --git a/renderer/src/components/main-panel/tool/auto-detector/diagram.ts b/renderer/src/components/main-panel/tool/auto-detector/diagram.ts
index 3e27241..d797b0a 100644
--- a/renderer/src/components/main-panel/tool/auto-detector/diagram.ts
+++ b/renderer/src/components/main-panel/tool/auto-detector/diagram.ts
@@ -45,7 +45,7 @@ export interface NodeDataView {
 }
 
 export interface DiagramContext {
-    reset: () => void,
+    preset: (type: string) => void,
     render: () => void,
     state?: DiagramState,
     setCaption: (value: string) => void
diff --git a/renderer/src/components/main-panel/tool/auto-detector/diagram.vue b/renderer/src/components/main-panel/tool/auto-detector/diagram.vue
index 21d0cda..800c887 100644
--- a/renderer/src/components/main-panel/tool/auto-detector/diagram.vue
+++ b/renderer/src/components/main-panel/tool/auto-detector/diagram.vue
@@ -1,27 +1,38 @@
 <template>
-    <div style="display: flex; align-items: center; gap: 16px;">
+    <div style="display: flex; align-items: flex-start; gap: 32px;">
         <div ref="svgContainer" class="diagram-container"></div>
-
-        <template v-for="(node, index) in state.nodes" :key="node.id + '-popup'">
-            <transition name="collapse-from-top" mode="out-in">
-				<div
-					v-show="state.hoverNodeId === node.id && state.dataView.get(node.id)?.status !== 'waiting'"
-					@mouseenter="setHoverItem(node.id)"
-					@mouseleave="clearHoverItem()"
-					:style="getNodePopupStyle(node)"
-					class="node-popup"
-				>
-					<el-scrollbar height="100%" width="100%">
-                        <DiagramItemRecord :data-view="state.dataView.get(node.id)"/>
-                    </el-scrollbar>
-				</div>
-			</transition>
-        </template>
+        <div class="diagram-info-panel">
+            <div style="display: flex; justify-content: flex-end; align-items: center;">
+                <el-button
+                    circle
+                    size="small"
+                    :type="state.pinnedNodeId ? 'primary' : 'default'"
+                    @click="togglePin"
+                    style="margin-bottom: 4px;"
+                    :disabled="!infoNodeId"
+                >
+                    <span class="iconfont icon-pin"></span>
+                </el-button>
+            </div>
+            <template v-if="infoNodeId && state.dataView.get(infoNodeId)">
+                <el-scrollbar height="500px" width="300px">
+                    <DiagramItemRecord :data-view="state.dataView.get(infoNodeId)" />
+                </el-scrollbar>
+            </template>
+            <template v-else>
+                <div class="diagram-info-empty">
+                    <el-icon style="font-size: 32px; color: #bbb; margin-bottom: 8px;">
+                        <i-ep-InfoFilled />
+                    </el-icon>
+                    <div style="color: #bbb; font-size: 15px;">暂无节点信息</div>
+                </div>
+            </template>
+        </div>
     </div>
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, nextTick, reactive, inject } from 'vue';
+import { ref, onMounted, nextTick, reactive, inject, computed } from 'vue';
 import * as d3 from 'd3';
 import ELK from 'elkjs/lib/elk.bundled.js';
 import { mcpClientAdapter } from '@/views/connect/core';
@@ -53,6 +64,7 @@ const state = reactive({
     selectedNodeId: null as string | null,
     draggingNodeId: null as string | null,
     hoverNodeId: null as string | null,
+    pinnedNodeId: null as string | null, // 新增
     offset: { x: 0, y: 0 },
     dataView: new Map<string, NodeDataView>
 });
@@ -66,6 +78,7 @@ if (autoDetectDiagram) {
     autoDetectDiagram.views?.forEach(item => {
         state.dataView.set(item.tool.name, {
             tool: item.tool,
+            function: item.function, 
             status: item.status || 'waiting',
             result: item.result || null
         });
@@ -84,23 +97,38 @@ console.log(state.dataView);
 let cancelHoverHandler: NodeJS.Timeout | undefined = undefined;
 
 const setHoverItem = (id: string) => {
-	if (cancelHoverHandler) {
-		clearTimeout(cancelHoverHandler);
-	}
-	state.hoverNodeId = id;
-}
+    if (state.pinnedNodeId) return; // 如果已pin，不响应hover
+    if (cancelHoverHandler) {
+        clearTimeout(cancelHoverHandler);
+    }
+    state.hoverNodeId = id;
+};
 
 const clearHoverItem = () => {
-	cancelHoverHandler = setTimeout(() => {
-		if (cancelHoverHandler) {
-			clearTimeout(cancelHoverHandler);
-		}
-		if (state.hoverNodeId) {
-			state.hoverNodeId = null;
-		}
-	}, 300);
+    if (state.pinnedNodeId) return; // 如果已pin，不响应hover
+    cancelHoverHandler = setTimeout(() => {
+        if (cancelHoverHandler) {
+            clearTimeout(cancelHoverHandler);
+        }
+        if (state.hoverNodeId) {
+            state.hoverNodeId = null;
+        }
+    }, 300);
 };
 
+// pin 按钮点击事件
+function togglePin() {
+    if (state.pinnedNodeId) {
+        state.pinnedNodeId = null;
+    } else if (state.hoverNodeId) {
+        state.pinnedNodeId = state.hoverNodeId;
+    }
+}
+
+// 让面板内容始终显示 pinnedNodeId 优先
+const infoNodeId = computed(() => state.pinnedNodeId || state.hoverNodeId);
+
+
 const getAllTools = async () => {
     const items = [];
     for (const client of mcpClientAdapter.clients) {
@@ -154,7 +182,7 @@ const drawDiagram = async () => {
 
     // 如果保存了 edges 信息，则需要进行同步
     const reservedEdges = autoDetectDiagram?.edges;
-    if (reservedEdges) {
+    if (reservedEdges && reservedEdges.length > 0) {
         for (const edge of reservedEdges) {
             if (edge.sources && edge.targets && edge.sources.length > 0 && edge.targets.length > 0) {
                 edges.push({
@@ -379,7 +407,7 @@ function renderSvg() {
             state.draggingNodeId = null;
         })
         .on('mouseover', function (event, d) {
-			setHoverItem(d.id);
+            setHoverItem(d.id);
             d3.select(this).select('rect')
                 .transition()
                 .duration(200)
@@ -387,7 +415,7 @@ function renderSvg() {
                 .attr('stroke-width', 2);
         })
         .on('mouseout', function (event, d) {
-            clearHoverItem();
+            // clearHoverItem();
             if (state.selectedNodeId === d.id) return;
             d3.select(this).select('rect')
                 .transition()
@@ -413,7 +441,7 @@ function renderSvg() {
         .attr('fill', 'var(--main-color)')
         .attr('font-weight', 600)
         .text(d => d.labels?.[0]?.text || 'Tool');
-		
+
     nodeGroupEnter.append('g').attr('class', 'node-status');
 
     // 合并 enter+update
@@ -557,7 +585,7 @@ function renderSvg() {
 }
 
 // 重置连接为链表结构
-function resetConnections() {
+function serialConnection() {
     if (!state.nodes.length) return;
     const edges = [];
     for (let i = 0; i < state.nodes.length - 1; ++i) {
@@ -573,8 +601,21 @@ function resetConnections() {
     recomputeLayout().then(renderSvg);
 }
 
+function parallelConnection() {
+    if (!state.nodes.length) return;
+    const edges = [] as Edge[];
+    state.edges = edges;
+    recomputeLayout().then(renderSvg);
+}
+
 const context = inject('context') as any;
-context.reset = resetConnections;
+context.preset = (type: string) => {
+    if (type === 'serial') {
+        serialConnection();
+    } else if (type === 'parallel') {
+        parallelConnection();
+    }
+};
 context.state = state;
 context.render = renderSvg;
 
@@ -590,7 +631,7 @@ function getNodePopupStyle(node: any): any {
     const marginY = 80;
     const popupWidth = 300;
     const popupHeight = 500;
-    
+
     let left = (node.x || 0) + (node.width || 160) + 100;
     let top = (node.y || 0) + 30;
 
@@ -619,13 +660,12 @@ function getNodePopupStyle(node: any): any {
 
 <style>
 .diagram-container {
-    width: 100%;
+    width: 600px;
     min-height: 200px;
-    display: flex;
-    justify-content: center;
-    align-items: flex-start;
     border-radius: 8px;
     padding: 24px 0;
+    display: flex;
+    justify-content: flex-start;
     overflow-x: auto;
 }
 
@@ -651,4 +691,41 @@ function getNodePopupStyle(node: any): any {
         transform: rotate(360deg);
     }
 }
+
+.diagram-container {
+    width: 600px;
+    min-height: 200px;
+    display: flex;
+    align-items: flex-start;
+    border-radius: 8px;
+    padding: 24px 0;
+    overflow-x: auto;
+}
+
+.diagram-info-panel {
+    position: absolute;
+    right: 30px;
+    top: 10px;
+    width: 300px;
+    min-height: 180px;
+    border: 1px solid var(--main-color);
+    border-radius: 12px;
+    box-shadow: 0 2px 12px 0 rgba(0,0,0,0.06);
+    padding: 10px;
+    display: flex;
+    flex-direction: column;
+    margin-top: 8px;
+    transition: box-shadow 0.2s;
+}
+
+.diagram-info-empty {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    height: 100%;
+    min-height: 120px;
+    opacity: 0.85;
+    font-size: 15px;
+}
 </style>
\ No newline at end of file
diff --git a/renderer/src/components/main-panel/tool/auto-detector/index.vue b/renderer/src/components/main-panel/tool/auto-detector/index.vue
index e06d66d..6b624ec 100644
--- a/renderer/src/components/main-panel/tool/auto-detector/index.vue
+++ b/renderer/src/components/main-panel/tool/auto-detector/index.vue
@@ -4,15 +4,30 @@
             <div style="display: flex; align-items: center;">
                 <span>Tool Diagram</span>
                 &ensp;
-                <el-button size="small" type="primary" @click="() => context.reset()">{{ t("reset") }}</el-button>
-                <!-- 自检程序弹出表单 -->
+                <!-- 重置按钮弹出下拉列表 -->
+                <el-popover placement="bottom" width="180" trigger="click" v-model:visible="resetPopoverVisible">
+                    <template #reference>
+                        <el-button size="small" type="primary">
+                            {{ t("preset") }}
+                        </el-button>
+                    </template>
+                    <div style="display: flex; gap: 8px;">
+                        <el-button size="small" @click="tomoPreset('serial')">
+                            <span class="iconfont icon-serial"></span>
+                        </el-button>
+                        <el-button size="small" @click="tomoPreset('parallel')">
+                            <span class="iconfont icon-parallel"></span>
+                        </el-button>
+                    </div>
+                </el-popover>
+                <!-- 原有自检程序弹出表单 -->
                 <el-popover placement="top" width="350" trigger="click" v-model:visible="testFormVisible">
                     <template #reference>
                         <el-button size="small" type="primary">
                             {{ t('start-auto-detect') }}
                         </el-button>
                     </template>
-
+                    <!-- ...原有自检表单内容... -->
                     <el-input type="textarea" v-model="testPrompt" :rows="2" style="margin-bottom: 8px;"
                         placeholder="请输入 prompt" />
                     <div style="display: flex; align-items: center; margin-bottom: 8px;">
@@ -34,11 +49,21 @@
         <el-scrollbar height="80vh">
             <Diagram :tab-id="props.tabId" />
         </el-scrollbar>
-        <transition name="main-fade" mode="out-in">
-            <div class="caption" v-show="showCaption">
-                {{ caption }}
-            </div>
-        </transition>
+   
+        <div class="caption" v-if="showCaption">
+            {{ caption }}
+        </div>
+        <div v-else>
+            <span class="caption">
+            <el-tooltip
+                placement="top"
+                effect="light"
+                content="点击连接线取消连接，点击节点以创建连接"
+            >
+                <span class="iconfont icon-about"></span>
+            </el-tooltip>
+            </span>
+        </div>
     </el-dialog>
 </template>
 
@@ -88,7 +113,7 @@ function setCaption(text: string) {
 }
 
 const context: DiagramContext = {
-    reset: () => { },
+    preset: () => { },
     render: () => { },
     state: undefined,
     setCaption
@@ -144,16 +169,24 @@ async function onTestConfirm() {
 
 
 }
+
+const resetPopoverVisible = ref(false);
+
+function tomoPreset(type: string) {
+    resetPopoverVisible.value = false;
+    context.preset?.(type);
+}
 </script>
 
 <style>
 .no-padding-dialog {
     margin-top: 30px !important;
+    width: 90vw !important;
 }
 
 .no-padding-dialog .caption {
     position: absolute;
-    left: 20px;
+    right: 30px;
     bottom: 10px;
     margin: 0 auto;
     width: fit-content;
diff --git a/renderer/src/components/main-panel/tool/diagram.vue b/renderer/src/components/main-panel/tool/diagram.vue
new file mode 100644
index 0000000..482a878
--- /dev/null
+++ b/renderer/src/components/main-panel/tool/diagram.vue
@@ -0,0 +1,547 @@
+<template>
+    <div style="display: flex; align-items: center; gap: 16px;">
+        <div ref="svgContainer" class="diagram-container"></div>
+
+        <!-- <template v-for="(node, index) in state.nodes" :key="node.id + '-popup'">
+            <div
+                v-if="state.hoverNodeId === node.id"
+                :style="getNodePopupStyle(node)"
+                class="node-popup"
+            >
+                <div>节点：{{ node.labels?.[0]?.text || node.id }}</div>
+                <div>宽: {{ node.width }}, 高: {{ node.height }}</div>
+            </div>
+        </template> -->
+    </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted, nextTick, reactive, inject } from 'vue';
+import * as d3 from 'd3';
+import ELK from 'elkjs/lib/elk.bundled.js';
+import { mcpClientAdapter } from '@/views/connect/core';
+import { invalidConnectionDetector, type Edge, type Node, type NodeDataView } from './diagram';
+import { ElMessage } from 'element-plus';
+
+
+const svgContainer = ref<HTMLDivElement | null>(null);
+let prevNodes: any[] = [];
+let prevEdges: any[] = [];
+
+const state = reactive({
+    nodes: [] as any[],
+    edges: [] as any[],
+    selectedNodeId: null as string | null,
+    draggingNodeId: null as string | null,
+    hoverNodeId: null as string | null,
+    offset: { x: 0, y: 0 },
+    dataView: new Map<string, NodeDataView>
+});
+
+const getAllTools = async () => {
+    const items = [];
+    for (const client of mcpClientAdapter.clients) {
+        const clientTools = await client.getTools();
+        items.push(...clientTools.values());
+    }
+    return items;
+};
+
+const recomputeLayout = async () => {
+    const elk = new ELK();
+    const elkGraph = {
+        id: 'root',
+        layoutOptions: {
+            'elk.direction': 'DOWN',
+            'elk.spacing.nodeNode': '40',
+            'elk.layered.spacing.nodeNodeBetweenLayers': '40'
+        },
+        children: state.nodes,
+        edges: state.edges
+    };
+    const layout = await elk.layout(elkGraph) as Node;
+    state.nodes.forEach((n, i) => {
+        const ln = layout.children?.find(c => c.id === n.id);
+        if (ln) {
+            n.x = ln.x;
+            n.y = ln.y;
+            n.width = ln.width;
+            n.height = ln.height;
+        }
+    });
+    state.edges = layout.edges || [];
+    return layout;
+};
+
+const drawDiagram = async () => {
+    const tools = await getAllTools();
+
+    // 默认按照链表进行串联
+    const nodes = [] as Node[];
+    const edges = [] as Edge[];
+
+    for (let i = 0; i < tools.length - 1; ++i) {
+        const prev = tools[i];
+        const next = tools[i + 1];
+        edges.push({
+            id: prev.name + '-' + next.name,
+            sources: [prev.name],
+            targets: [next.name]
+        })
+    }
+
+    for (const tool of tools) {
+        nodes.push({
+            id: tool.name,
+            width: 200,
+            height: 64, // 增加高度
+            labels: [{ text: tool.name || 'Tool' }]
+        });
+
+        state.dataView.set(tool.name, {
+            tool,
+            status: 'waiting',
+            result: null
+        });
+    }
+
+    state.edges = edges;
+    state.nodes = nodes;
+
+    // 重新计算布局
+    await recomputeLayout();
+
+    // 绘制 svg
+    renderSvg();
+};
+
+function renderSvg() {
+    const prevNodeMap = new Map(prevNodes.map(n => [n.id, n]));
+    const prevEdgeMap = new Map(prevEdges.map(e => [e.id, e]));
+
+    // 计算所有节点的最小x和最大x
+    const xs = state.nodes.map(n => (n.x || 0));
+    const minX = Math.min(...xs);
+    const maxX = Math.max(...xs.map((x, i) => x + (state.nodes[i].width || 160)));
+    const contentWidth = maxX - minX;
+    const svgWidth = Math.max(contentWidth + 120, 400); // 120为两侧留白
+    const offsetX = (svgWidth - contentWidth) / 2 - minX;
+
+    const height = Math.max(...state.nodes.map(n => (n.y || 0) + (n.height || 48)), 300) + 60;
+
+    // 不再全量清空，只清空 svg 元素
+    let svg = d3.select(svgContainer.value).select('svg');
+    if (svg.empty()) {
+        svg = d3
+            .select(svgContainer.value)
+            .append('svg')
+            .attr('width', svgWidth)
+            .attr('height', height)
+            .style('user-select', 'none') as any;
+    } else {
+        svg.attr('width', svgWidth).attr('height', height);
+        svg.selectAll('defs').remove();
+    }
+
+    // Arrow marker
+    svg
+        .append('defs')
+        .append('marker')
+        .attr('id', 'arrow')
+        .attr('viewBox', '0 0 8 8')
+        .attr('refX', 6)
+        .attr('refY', 4)
+        .attr('markerWidth', 5)
+        .attr('markerHeight', 5)
+        .attr('orient', 'auto')
+        .append('path')
+        .attr('d', 'M 0 0 L 8 4 L 0 8 z')
+        .attr('fill', 'var(--main-color)');
+
+    // 1. 创建/获取 main group
+    let mainGroup = svg.select('g.main-group');
+    if (mainGroup.empty()) {
+        mainGroup = svg.append('g').attr('class', 'main-group') as any;
+    }
+    mainGroup
+        .transition()
+        .duration(600)
+        .attr('transform', `translate(${offsetX}, 0)`);
+
+    // Draw edges with enter animation
+    const allSections: { id: string, section: any }[] = [];
+    (state.edges || []).forEach(edge => {
+        const sections = edge.sections || [];
+        sections.forEach((section: any, idx: number) => {
+            allSections.push({
+                id: (edge.id || '') + '-' + (section.id || idx),
+                section
+            });
+        });
+    });
+
+    const edgeSelection = mainGroup.selectAll<SVGLineElement, any>('.edge')
+        .data(allSections, d => d.id);
+
+    edgeSelection.exit().remove();
+
+    const edgeEnter = edgeSelection.enter()
+        .append('line')
+        .attr('class', 'edge')
+        .attr('x1', d => {
+            const prev = prevEdgeMap.get(d.id);
+            return prev && prev.sections && prev.sections[0]
+                ? prev.sections[0].startPoint.x + 30
+                : d.section.startPoint.x + 30;
+        })
+        .attr('y1', d => {
+            const prev = prevEdgeMap.get(d.id);
+            return prev && prev.sections && prev.sections[0]
+                ? prev.sections[0].startPoint.y + 30
+                : d.section.startPoint.y + 30;
+        })
+        .attr('x2', d => {
+            const prev = prevEdgeMap.get(d.id);
+            return prev && prev.sections && prev.sections[0]
+                ? prev.sections[0].endPoint.x + 30
+                : d.section.endPoint.x + 30;
+        })
+        .attr('y2', d => {
+            const prev = prevEdgeMap.get(d.id);
+            return prev && prev.sections && prev.sections[0]
+                ? prev.sections[0].endPoint.y + 30
+                : d.section.endPoint.y + 30;
+        })
+        .attr('stroke', 'var(--main-color)')
+        .attr('stroke-width', 2.5)
+        .attr('marker-end', 'url(#arrow)')
+        .attr('opacity', 0);
+
+    edgeEnter
+        .transition()
+        .duration(600)
+        .attr('opacity', 1)
+        .attr('x1', d => d.section.startPoint.x + 30)
+        .attr('y1', d => d.section.startPoint.y + 30)
+        .attr('x2', d => d.section.endPoint.x + 30)
+        .attr('y2', d => d.section.endPoint.y + 30);
+
+    // update + 动画（注意这里不再 transition opacity）
+    edgeSelection.merge(edgeEnter)
+        .transition()
+        .duration(600)
+        .ease(d3.easeCubicInOut)
+        .attr('x1', d => d.section.startPoint.x + 30)
+        .attr('y1', d => d.section.startPoint.y + 30)
+        .attr('x2', d => d.section.endPoint.x + 30)
+        .attr('y2', d => d.section.endPoint.y + 30)
+        .attr('opacity', 1);
+
+    // --- 节点动画部分 ---
+    const nodeGroup = mainGroup.selectAll<SVGGElement, any>('.node')
+        .data(state.nodes, d => d.id);
+
+    nodeGroup.exit().remove();
+
+    // 节点 enter
+    const nodeGroupEnter = nodeGroup.enter()
+        .append('g')
+        .attr('class', 'node')
+        .attr('transform', d => {
+            const prev = prevNodeMap.get(d.id);
+            if (prev) {
+                return `translate(${(prev.x || 0) + 30}, ${(prev.y || 0) + 30})`;
+            }
+            return `translate(${(d.x || 0) + 30}, ${(d.y || 0) + 30})`;
+        })
+        .style('cursor', 'pointer')
+        .attr('opacity', 0)
+        .on('mousedown', null)
+        .on('mouseup', function (event, d) {
+            event.stopPropagation();
+            if (state.selectedNodeId) {
+
+                const { canConnect, reason } = invalidConnectionDetector(state, d);
+
+                console.log(reason);
+
+
+                if (reason) {
+                    ElMessage.warning(reason);
+                }
+
+                if (canConnect) {
+                    state.edges.push({
+                        id: `e${state.selectedNodeId}_${d.id}_${Date.now()}`,
+                        sources: [state.selectedNodeId],
+                        targets: [d.id]
+                    });
+                    state.selectedNodeId = null;
+                    recomputeLayout().then(renderSvg);
+                } else {
+                    // 已存在则只取消选中
+                    state.selectedNodeId = null;
+                    renderSvg();
+                }
+                context.setCaption('');
+
+            } else {
+                state.selectedNodeId = d.id;
+                renderSvg();
+                context.setCaption('选择另一个节点以定义测试拓扑');
+            }
+            state.draggingNodeId = null;
+        })
+        .on('mouseover', function (event, d) {
+            state.hoverNodeId = d.id;
+            d3.select(this).select('rect')
+                .transition()
+                .duration(200)
+                .attr('stroke', 'var(--main-color)')
+                .attr('stroke-width', 2);
+        })
+        .on('mouseout', function (event, d) {
+            state.hoverNodeId = null;
+            if (state.selectedNodeId === d.id) return;
+            d3.select(this).select('rect')
+                .transition()
+                .duration(200)
+                .attr('stroke', 'var(--main-light-color-10)')
+                .attr('stroke-width', 1);
+        });
+
+    nodeGroupEnter.append('rect')
+        .attr('width', d => d.width)
+        .attr('height', d => d.height)
+        .attr('rx', 16)
+        .attr('fill', 'var(--main-light-color-20)')
+        .attr('stroke', d => state.selectedNodeId === d.id ? 'var(--main-color)' : 'var(--main-light-color-10)')
+        .attr('stroke-width', 2);
+
+    // 节点文字
+    nodeGroupEnter.append('text')
+        .attr('x', d => d.width / 2)
+        .attr('y', d => d.height / 2 - 6) // 上移一点
+        .attr('text-anchor', 'middle')
+        .attr('font-size', 16)
+        .attr('fill', 'var(--main-color)')
+        .attr('font-weight', 600)
+        .text(d => d.labels?.[0]?.text || 'Tool');
+
+    // 状态条
+    nodeGroupEnter.append('g')
+        .attr('class', 'node-status')
+        .each(function (d) {
+            const status = state.dataView.get(d.id)?.status || 'waiting';
+            const g = d3.select(this);
+            if (status === 'running') {
+                // 动画圆环+文字
+                g.append('circle')
+                    .attr('cx', d.width / 2 - 32)
+                    .attr('cy', d.height - 16)
+                    .attr('r', 6) // 半径更小
+                    .attr('fill', 'none')
+                    .attr('stroke', 'var(--main-color)') // 使用主题色
+                    .attr('stroke-width', 3)
+                    .attr('stroke-dasharray', 20)
+                    .attr('stroke-dashoffset', 0)
+                    .append('animateTransform')
+                    .attr('attributeName', 'transform')
+                    .attr('attributeType', 'XML')
+                    .attr('type', 'rotate')
+                    .attr('from', `0 ${(d.width / 2 - 32)} ${(d.height - 16)}`)
+                    .attr('to', `360 ${(d.width / 2 - 32)} ${(d.height - 16)}`)
+                    .attr('dur', '1s')
+                    .attr('repeatCount', 'indefinite');
+                g.append('text')
+                    .attr('x', d.width / 2 - 16)
+                    .attr('y', d.height - 12)
+                    .attr('font-size', 13)
+                    .attr('fill', 'var(--main-color)')
+                    .text('running');
+            } else if (status === 'waiting') {
+                g.append('circle')
+                    .attr('cx', d.width / 2 - 32)
+                    .attr('cy', d.height - 16)
+                    .attr('r', 6)
+                    .attr('fill', 'none')
+                    .attr('stroke', '#bdbdbd')
+                    .attr('stroke-width', 3);
+                g.append('text')
+                    .attr('x', d.width / 2 - 16)
+                    .attr('y', d.height - 12)
+                    .attr('font-size', 13)
+                    .attr('fill', '#bdbdbd')
+                    .text('waiting');
+            } else if (status === 'success') {
+                g.append('circle')
+                    .attr('cx', d.width / 2 - 32)
+                    .attr('cy', d.height - 16)
+                    .attr('r', 6) // 保持和 waiting 一致
+                    .attr('fill', 'none')
+                    .attr('stroke', '#4caf50')
+                    .attr('stroke-width', 3);
+                g.append('text')
+                    .attr('x', d.width / 2 - 16)
+                    .attr('y', d.height - 12)
+                    .attr('font-size', 13)
+                    .attr('fill', '#4caf50')
+                    .text('success');
+            } else if (status === 'error') {
+                g.append('circle')
+                    .attr('cx', d.width / 2 - 32)
+                    .attr('cy', d.height - 16)
+                    .attr('r', 6) // 保持和 waiting 一致
+                    .attr('fill', 'none')
+                    .attr('stroke', '#f44336')
+                    .attr('stroke-width', 3);
+                g.append('text')
+                    .attr('x', d.width / 2 - 16)
+                    .attr('y', d.height - 12)
+                    .attr('font-size', 13)
+                    .attr('fill', '#f44336')
+                    .text('error');
+            }
+        });
+    // 节点 enter 动画
+    nodeGroupEnter
+        .transition()
+        .duration(600)
+        .attr('opacity', 1)
+        .attr('transform', d => `translate(${(d.x || 0) + 30}, ${(d.y || 0) + 30})`);
+
+    // 节点 update 动画
+    nodeGroup
+        .transition()
+        .duration(600)
+        .ease(d3.easeCubicInOut)
+        .attr('transform', d => `translate(${(d.x || 0) + 30}, ${(d.y || 0) + 30})`);
+
+    // 高亮选中节点动画
+    nodeGroup.select('rect')
+        .transition()
+        .duration(400)
+        .attr('stroke-width', d => state.selectedNodeId === d.id ? 2 : 1)
+        .attr('stroke', d => state.selectedNodeId === d.id ? 'var(--main-color)' : 'var(--main-light-color-10)');
+
+    // 边高亮
+    svg.selectAll<SVGLineElement, any>('.edge')
+        .on('mouseover', function () {
+            d3.select(this)
+                .transition()
+                .duration(200)
+                .attr('stroke', 'var(--main-color)')
+                .attr('stroke-width', 4.5);
+
+            context.setCaption('点击边以删除');
+
+        })
+        .on('mouseout', function () {
+            d3.select(this)
+                .transition()
+                .duration(200)
+                .attr('stroke', 'var(--main-color)')
+                .attr('stroke-width', 2.5);
+
+            context.setCaption('');
+        })
+        .on('click', function (event, d) {
+            // 只删除当前 edge
+            state.edges = state.edges.filter(e => {
+                // 多段 edge 情况
+                if (e.sections) {
+                    // 只保留不是当前 section 的
+                    return !e.sections.some((section: any, idx: number) =>
+                        ((e.id || '') + '-' + (section.id || idx)) === d.id
+                    );
+                }
+                // 单段 edge 情况
+                return e.id !== d.id && e.id !== d.section?.id;
+            });
+            recomputeLayout().then(renderSvg);
+            event.stopPropagation();
+        });
+
+    // 渲染结束后保存当前快照
+    prevNodes = state.nodes.map(n => ({ ...n }));
+    prevEdges = (state.edges || []).map(e => ({ ...e, sections: e.sections ? e.sections.map((s: any) => ({ ...s })) : [] }));
+}
+
+// 重置连接为链表结构
+function resetConnections() {
+    if (!state.nodes.length) return;
+    const edges = [];
+    for (let i = 0; i < state.nodes.length - 1; ++i) {
+        const prev = state.nodes[i];
+        const next = state.nodes[i + 1];
+        edges.push({
+            id: prev.id + '-' + next.id,
+            sources: [prev.id],
+            targets: [next.id]
+        });
+    }
+    state.edges = edges;
+    recomputeLayout().then(renderSvg);
+}
+
+const context = inject('context') as any;
+context.reset = resetConnections;
+context.state = state;
+context.render = renderSvg;
+
+onMounted(() => {
+    nextTick(drawDiagram);
+});
+
+// 4. 计算窗口位置
+function getNodePopupStyle(node: any): any {
+    // 节点的 svg 坐标转为容器内绝对定位
+    // 注意：这里假设 offsetX、node.x、node.y 已经是最新的
+    console.log(node);
+
+    const left = (node.x || 0) + (node.width || 160) - 120; // 节点右侧
+    const top = (node.y || 0) + 30; // 节点顶部对齐
+    return {
+        position: 'absolute',
+        left: `${left}px`,
+        top: `${top}px`,
+    };
+}
+</script>
+
+<style>
+.diagram-container {
+    width: 100%;
+    min-height: 200px;
+    display: flex;
+    justify-content: center;
+    align-items: flex-start;
+    border-radius: 8px;
+    padding: 24px 0;
+    overflow-x: auto;
+}
+
+.node-popup {
+    position: absolute;
+    background: var(--background);
+    border: 1px solid var(--main-color);
+    width: 240px;
+    border-radius: 8px;
+    padding: 8px 12px;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
+    white-space: nowrap;
+    z-index: 10;
+}
+
+/* 旋转动画 */
+.status-running-circle {
+    animation: spin 1s linear infinite;
+    transform-origin: center;
+}
+
+@keyframes spin {
+    100% {
+        transform: rotate(360deg);
+    }
+}
+</style>
\ No newline at end of file