diff --git a/src/App.vue b/src/App.vue
index 3d04ce9..a3a5153 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -91,6 +91,7 @@ const {
     fitView,
     resetLayout,
     centerRoot,
+    handleNodeDrag,
     startNewSession,
     executeReset,
     generateSummary,
@@ -139,6 +140,7 @@ const fitToView = () => {
                 :class="{ 'space-pressed': isSpacePressed }"
                 :pan-on-drag="panOnDrag"
                 :selection-key-code="'Shift'"
+                @node-drag="handleNodeDrag"
             >
                 <Background
                     :variant="config.backgroundVariant"
@@ -160,6 +162,7 @@ const fitToView = () => {
                         :selected="selected"
                         :t="t"
                         :config="config"
+                        :fitView="fitView"
                         :activeNodeId="activeNodeId"
                         :activePath="activePath"
                         :flowNodes="flowNodes"
diff --git a/src/components/TopNav.vue b/src/components/TopNav.vue
index 65decc6..47bdee2 100644
--- a/src/components/TopNav.vue
+++ b/src/components/TopNav.vue
@@ -6,13 +6,14 @@
  */
 
 // 基础依赖
-import { ref } from 'vue'
+import { computed, onMounted, onUnmounted, ref } from 'vue'
 
 // 背景样式枚举（用于切换 Lines/Dots）
 import { BackgroundVariant } from '@vue-flow/background'
 
 // 图标：所有按钮与状态展示
 import {
+    ArrowLeftRight,
     ChevronDown,
     ChevronUp,
     Download,
@@ -58,6 +59,74 @@ const emit = defineEmits<{
  */
 const isToolsExpanded = ref(false)
 
+const isEdgeTypeMenuOpen = ref(false)
+const isBackgroundMenuOpen = ref(false)
+
+const edgeTypeOptions = [
+    { value: 'default', labelKey: 'nav.edgeTypes.default' },
+    { value: 'straight', labelKey: 'nav.edgeTypes.straight' },
+    { value: 'step', labelKey: 'nav.edgeTypes.step' },
+    { value: 'smoothstep', labelKey: 'nav.edgeTypes.smoothstep' },
+    { value: 'simplebezier', labelKey: 'nav.edgeTypes.simplebezier' }
+]
+
+const backgroundOptions = [
+    { value: BackgroundVariant.Lines, labelKey: 'nav.lines' },
+    { value: BackgroundVariant.Dots, labelKey: 'nav.dots' }
+]
+
+const currentEdgeTypeLabel = computed(() => {
+    const option = edgeTypeOptions.find(o => o.value === props.config.edgeType)
+    return option ? props.t(option.labelKey) : props.config.edgeType
+})
+
+const currentBackgroundLabel = computed(() => {
+    const option = backgroundOptions.find(o => o.value === props.config.backgroundVariant)
+    return option ? props.t(option.labelKey) : String(props.config.backgroundVariant)
+})
+
+const closeMenus = () => {
+    isEdgeTypeMenuOpen.value = false
+    isBackgroundMenuOpen.value = false
+}
+
+const toggleEdgeTypeMenu = () => {
+    isEdgeTypeMenuOpen.value = !isEdgeTypeMenuOpen.value
+    if (isEdgeTypeMenuOpen.value) isBackgroundMenuOpen.value = false
+}
+
+const toggleBackgroundMenu = () => {
+    isBackgroundMenuOpen.value = !isBackgroundMenuOpen.value
+    if (isBackgroundMenuOpen.value) isEdgeTypeMenuOpen.value = false
+}
+
+const setEdgeType = (value: string) => {
+    props.config.edgeType = value
+    closeMenus()
+}
+
+const setBackgroundVariant = (value: any) => {
+    props.config.backgroundVariant = value
+    closeMenus()
+}
+
+const handleDocumentPointerDown = (e: Event) => {
+    const target = e.target as HTMLElement | null
+    if (!target) return
+
+    if (target.closest('[data-edge-type-menu="true"]')) return
+    if (target.closest('[data-background-menu="true"]')) return
+    closeMenus()
+}
+
+onMounted(() => {
+    document.addEventListener('pointerdown', handleDocumentPointerDown)
+})
+
+onUnmounted(() => {
+    document.removeEventListener('pointerdown', handleDocumentPointerDown)
+})
+
 /**
  * 执行某个工具动作后自动收起移动端面板
  */
@@ -95,6 +164,18 @@ const callAndClose = (fn: () => void) => {
 
                 <div class="h-4 w-[1px] bg-slate-100 mx-1 flex-shrink-0"></div>
 
+                <button
+                    @click="props.config.hierarchicalDragging = !props.config.hierarchicalDragging"
+                    class="toolbar-btn border-slate-100 flex-shrink-0"
+                    :class="props.config.hierarchicalDragging ? 'text-orange-500 bg-orange-50 border-orange-100' : 'text-slate-400 hover:text-slate-600'"
+                    :title="props.t('nav.hierarchicalDragging')"
+                >
+                    <ArrowLeftRight class="w-3.5 h-3.5 md:w-4 h-4" />
+                    <span>{{ props.t('nav.hierarchicalDragging') }}</span>
+                </button>
+
+                <div class="h-4 w-[1px] bg-slate-100 mx-1 flex-shrink-0"></div>
+
                 <button @click="props.onStartNewSession" class="toolbar-btn text-red-500 hover:bg-red-50 border-red-100 flex-shrink-0" :title="props.t('nav.reset')">
                     <Trash2 class="w-3.5 h-3.5 md:w-4 h-4" />
                     <span>{{ props.t('nav.reset') }}</span>
@@ -108,18 +189,49 @@ const callAndClose = (fn: () => void) => {
                     <span class="text-[9px] md:text-[10px] font-bold text-slate-500 uppercase">{{ props.t('nav.edge') }}</span>
                 </div>
 
-                <select v-model="props.config.edgeType" class="toolbar-select flex-shrink-0">
-                    <option value="default">{{ props.t('nav.edgeTypes.default') }}</option>
-                    <option value="straight">{{ props.t('nav.edgeTypes.straight') }}</option>
-                    <option value="step">{{ props.t('nav.edgeTypes.step') }}</option>
-                    <option value="smoothstep">{{ props.t('nav.edgeTypes.smoothstep') }}</option>
-                    <option value="simplebezier">{{ props.t('nav.edgeTypes.simplebezier') }}</option>
-                </select>
+                <div data-edge-type-menu="true" class="relative flex-shrink-0">
+                    <button type="button" class="toolbar-select flex items-center gap-2" @click="toggleEdgeTypeMenu">
+                        <span>{{ currentEdgeTypeLabel }}</span>
+                        <ChevronDown class="w-3 h-3 opacity-60" />
+                    </button>
+                    <div
+                        v-if="isEdgeTypeMenuOpen"
+                        class="absolute top-full left-0 mt-2 min-w-[180px] bg-white border border-slate-200 rounded-lg shadow-xl p-1 z-50"
+                    >
+                        <button
+                            v-for="opt in edgeTypeOptions"
+                            :key="opt.value"
+                            type="button"
+                            class="w-full text-left px-3 py-2 rounded-md text-[10px] font-black tracking-widest uppercase transition-colors"
+                            :class="opt.value === props.config.edgeType ? 'bg-orange-50 text-orange-600' : 'text-slate-600 hover:bg-slate-50'"
+                            @click="setEdgeType(opt.value)"
+                        >
+                            {{ props.t(opt.labelKey) }}
+                        </button>
+                    </div>
+                </div>
 
-                <select v-model="props.config.backgroundVariant" class="toolbar-select flex-shrink-0">
-                    <option :value="BackgroundVariant.Lines">{{ props.t('nav.lines') }}</option>
-                    <option :value="BackgroundVariant.Dots">{{ props.t('nav.dots') }}</option>
-                </select>
+                <div data-background-menu="true" class="relative flex-shrink-0">
+                    <button type="button" class="toolbar-select flex items-center gap-2" @click="toggleBackgroundMenu">
+                        <span>{{ currentBackgroundLabel }}</span>
+                        <ChevronDown class="w-3 h-3 opacity-60" />
+                    </button>
+                    <div
+                        v-if="isBackgroundMenuOpen"
+                        class="absolute top-full left-0 mt-2 min-w-[140px] bg-white border border-slate-200 rounded-lg shadow-xl p-1 z-50"
+                    >
+                        <button
+                            v-for="opt in backgroundOptions"
+                            :key="String(opt.value)"
+                            type="button"
+                            class="w-full text-left px-3 py-2 rounded-md text-[10px] font-black tracking-widest uppercase transition-colors"
+                            :class="opt.value === props.config.backgroundVariant ? 'bg-orange-50 text-orange-600' : 'text-slate-600 hover:bg-slate-50'"
+                            @click="setBackgroundVariant(opt.value)"
+                        >
+                            {{ props.t(opt.labelKey) }}
+                        </button>
+                    </div>
+                </div>
 
                 <div class="h-4 w-[1px] bg-slate-100 mx-1 flex-shrink-0"></div>
 
@@ -212,18 +324,49 @@ const callAndClose = (fn: () => void) => {
                 <span class="text-[10px] font-bold text-slate-500 uppercase">{{ props.t('nav.edge') }}</span>
             </div>
 
-            <select v-model="props.config.edgeType" class="toolbar-select">
-                <option value="default">{{ props.t('nav.edgeTypes.default') }}</option>
-                <option value="straight">{{ props.t('nav.edgeTypes.straight') }}</option>
-                <option value="step">{{ props.t('nav.edgeTypes.step') }}</option>
-                <option value="smoothstep">{{ props.t('nav.edgeTypes.smoothstep') }}</option>
-                <option value="simplebezier">{{ props.t('nav.edgeTypes.simplebezier') }}</option>
-            </select>
+            <div data-edge-type-menu="true" class="relative">
+                <button type="button" class="toolbar-select flex items-center gap-2" @click="toggleEdgeTypeMenu">
+                    <span>{{ currentEdgeTypeLabel }}</span>
+                    <ChevronDown class="w-3 h-3 opacity-60" />
+                </button>
+                <div
+                    v-if="isEdgeTypeMenuOpen"
+                    class="absolute top-full left-0 mt-2 min-w-[180px] bg-white border border-slate-200 rounded-lg shadow-xl p-1 z-50"
+                >
+                    <button
+                        v-for="opt in edgeTypeOptions"
+                        :key="opt.value"
+                        type="button"
+                        class="w-full text-left px-3 py-2 rounded-md text-[10px] font-black tracking-widest uppercase transition-colors"
+                        :class="opt.value === props.config.edgeType ? 'bg-orange-50 text-orange-600' : 'text-slate-600 hover:bg-slate-50'"
+                        @click="callAndClose(() => setEdgeType(opt.value))"
+                    >
+                        {{ props.t(opt.labelKey) }}
+                    </button>
+                </div>
+            </div>
 
-            <select v-model="props.config.backgroundVariant" class="toolbar-select">
-                <option :value="BackgroundVariant.Lines">{{ props.t('nav.lines') }}</option>
-                <option :value="BackgroundVariant.Dots">{{ props.t('nav.dots') }}</option>
-            </select>
+            <div data-background-menu="true" class="relative">
+                <button type="button" class="toolbar-select flex items-center gap-2" @click="toggleBackgroundMenu">
+                    <span>{{ currentBackgroundLabel }}</span>
+                    <ChevronDown class="w-3 h-3 opacity-60" />
+                </button>
+                <div
+                    v-if="isBackgroundMenuOpen"
+                    class="absolute top-full left-0 mt-2 min-w-[140px] bg-white border border-slate-200 rounded-lg shadow-xl p-1 z-50"
+                >
+                    <button
+                        v-for="opt in backgroundOptions"
+                        :key="String(opt.value)"
+                        type="button"
+                        class="w-full text-left px-3 py-2 rounded-md text-[10px] font-black tracking-widest uppercase transition-colors"
+                        :class="opt.value === props.config.backgroundVariant ? 'bg-orange-50 text-orange-600' : 'text-slate-600 hover:bg-slate-50'"
+                        @click="callAndClose(() => setBackgroundVariant(opt.value))"
+                    >
+                        {{ props.t(opt.labelKey) }}
+                    </button>
+                </div>
+            </div>
 
             <button
                 @click="props.config.showMiniMap = !props.config.showMiniMap"
diff --git a/src/components/WindowNode.vue b/src/components/WindowNode.vue
index 975f7e8..c56bbe0 100644
--- a/src/components/WindowNode.vue
+++ b/src/components/WindowNode.vue
@@ -41,6 +41,7 @@ const props = defineProps<{
     selected: boolean
     t: any
     config: any
+    fitView: (options?: any) => void
     activeNodeId: string | null
     activePath: { nodeIds: Set<string>; edgeIds: Set<string> }
     flowNodes: any[]
@@ -72,6 +73,22 @@ const isFocused = ref(false)
  * 从 flowNodes 中找到节点当前位置，用于扩展时定位新节点生成的参考坐标
  */
 const getNodePosition = (id: string) => props.flowNodes.find(n => n.id === id)?.position
+
+/**
+ * 输入框聚焦处理：放大节点并居中视图
+ */
+const handleFocus = () => {
+    isFocused.value = true
+    // 聚焦时将视图中心对准该节点，并给予适当的 padding 确保放大后完整可见
+    props.fitView({ nodes: [props.id], padding: 1.5, duration: 600 })
+}
+
+/**
+ * 输入框失去焦点处理
+ */
+const handleBlur = () => {
+    isFocused.value = false
+}
 </script>
 
 <template>
@@ -79,13 +96,14 @@ const getNodePosition = (id: string) => props.flowNodes.find(n => n.id === id)?.
         class="window-node group transition-all duration-500"
         :class="{
             'opacity-40 grayscale-[0.4] blur-[0.5px] scale-[0.98] pointer-events-none': props.activeNodeId && !props.activePath.nodeIds.has(props.id),
-            'opacity-100 grayscale-0 blur-0 scale-105 z-50 ring-2 ring-offset-4': props.activePath.nodeIds.has(props.id),
+            'opacity-100 grayscale-0 blur-0 scale-105 z-50 ring-2 ring-offset-4': props.activePath.nodeIds.has(props.id) && !isFocused,
+            'opacity-100 grayscale-0 blur-0 scale-110 z-[100] shadow-2xl ring-4 ring-offset-8': isFocused,
             '!w-[450px]': props.data.isDetailExpanded
         }"
         :style="{
-            borderColor: props.activePath.nodeIds.has(props.id) ? props.config.edgeColor : props.config.edgeColor + '40',
-            boxShadow: props.activeNodeId === props.id ? `0 20px 50px -12px ${props.config.edgeColor}40` : '',
-            '--tw-ring-color': props.selected ? props.config.edgeColor + '40' : 'transparent'
+            borderColor: isFocused || props.activePath.nodeIds.has(props.id) ? props.config.edgeColor : props.config.edgeColor + '40',
+            boxShadow: isFocused ? `0 25px 50px -12px ${props.config.edgeColor}60` : (props.activeNodeId === props.id ? `0 20px 50px -12px ${props.config.edgeColor}40` : ''),
+            '--tw-ring-color': isFocused || props.selected ? props.config.edgeColor + '40' : 'transparent'
         }"
     >
         <Handle type="target" :position="Position.Left" class="!bg-transparent !border-none" />
@@ -226,8 +244,8 @@ const getNodePosition = (id: string) => props.flowNodes.find(n => n.id === id)?.
                         <Terminal v-else class="w-3 h-3" :style="{ color: props.config.edgeColor }" />
                         <input
                             v-model="props.data.followUp"
-                            @focus="isFocused = true"
-                            @blur="isFocused = false"
+                            @focus="handleFocus"
+                            @blur="handleBlur"
                             @keyup.enter="props.expandIdea({ id: props.id, data: props.data, position: getNodePosition(props.id) }, props.data.followUp)"
                             :placeholder="props.t('node.followUp')"
                             class="bg-transparent border-none outline-none text-[10px] font-bold text-slate-700 flex-grow placeholder:text-slate-400"
diff --git a/src/composables/useThinkFlow.ts b/src/composables/useThinkFlow.ts
index 85a6762..291a956 100644
--- a/src/composables/useThinkFlow.ts
+++ b/src/composables/useThinkFlow.ts
@@ -107,6 +107,7 @@ export function useThinkFlow({ t, locale }: { t: Translate; locale: Ref<string>
         removeEdges,
         fitView,
         onNodeDragStart,
+        onNodeDrag,
         onNodeDragStop
     } = useVueFlow()
 
@@ -122,6 +123,7 @@ export function useThinkFlow({ t, locale }: { t: Translate; locale: Ref<string>
     const summaryContent = ref('')
 
     const draggingNodeId = ref<string | null>(null)
+    const dragLastPositionByNodeId = new Map<string, { x: number; y: number }>()
 
     /**
      * 交互：按住 Space 启用“抓手拖拽画布”
@@ -149,10 +151,79 @@ export function useThinkFlow({ t, locale }: { t: Translate; locale: Ref<string>
      */
     onNodeDragStart(e => {
         draggingNodeId.value = e.node.id
+        dragLastPositionByNodeId.set(e.node.id, {
+            x: e.node.position.x,
+            y: e.node.position.y
+        })
     })
 
-    onNodeDragStop(() => {
+    /**
+     * 处理节点拖拽事件 (联动移动子节点)
+     */
+    const handleNodeDrag = (payload: any) => {
+        if (!config.hierarchicalDragging) return
+
+        const node = payload?.node ?? payload
+        if (!node?.id || !node?.position) return
+
+        const lastPosition = dragLastPositionByNodeId.get(node.id)
+        if (!lastPosition) {
+            const fallbackDelta = payload?.delta
+            dragLastPositionByNodeId.set(node.id, { x: node.position.x, y: node.position.y })
+            if (fallbackDelta && typeof fallbackDelta.x === 'number' && typeof fallbackDelta.y === 'number') {
+                const descendantIds = getDescendantIds(node.id)
+                if (descendantIds.size === 0) return
+
+                const selectedNodeIds = new Set(flowNodes.value.filter(n => n.selected).map(n => n.id))
+                descendantIds.forEach(id => {
+                    if (!selectedNodeIds.has(id)) {
+                        const targetNode = flowNodes.value.find(n => n.id === id)
+                        if (targetNode) {
+                            targetNode.position = {
+                                x: targetNode.position.x + fallbackDelta.x,
+                                y: targetNode.position.y + fallbackDelta.y
+                            }
+                        }
+                    }
+                })
+            }
+            return
+        }
+
+        const dx = node.position.x - lastPosition.x
+        const dy = node.position.y - lastPosition.y
+        if (dx === 0 && dy === 0) return
+
+        dragLastPositionByNodeId.set(node.id, { x: node.position.x, y: node.position.y })
+
+        const descendantIds = getDescendantIds(node.id)
+        if (descendantIds.size === 0) return
+
+        // 获取当前所有选中的节点，避免重复位移
+        const selectedNodeIds = new Set(flowNodes.value.filter(n => n.selected).map(n => n.id))
+
+        // 批量更新子节点位置
+        descendantIds.forEach(id => {
+            if (!selectedNodeIds.has(id)) {
+                const targetNode = flowNodes.value.find(n => n.id === id)
+                if (targetNode) {
+                    // 直接更新位置对象，确保 Vue 能够检测到深层变化
+                    targetNode.position = {
+                        x: targetNode.position.x + dx,
+                        y: targetNode.position.y + dy
+                    }
+                }
+            }
+        })
+    }
+
+    onNodeDrag(handleNodeDrag)
+
+    onNodeDragStop(e => {
         draggingNodeId.value = null
+        if (e?.node?.id) {
+            dragLastPositionByNodeId.delete(e.node.id)
+        }
     })
 
     /**
@@ -166,16 +237,25 @@ export function useThinkFlow({ t, locale }: { t: Translate; locale: Ref<string>
     })
 
     /**
-     * 获取某节点所有后代节点 id（用于激活路径计算）
+     * 获取节点的所有后代节点 ID (迭代实现，更健壮)
      */
-    const getDescendantIds = (nodeId: string, ids: Set<string> = new Set()): Set<string> => {
-        flowEdges.value.forEach(edge => {
-            if (edge.source === nodeId) {
-                ids.add(edge.target)
-                getDescendantIds(edge.target, ids)
+    const getDescendantIds = (nodeId: string): Set<string> => {
+        const descendants = new Set<string>()
+        const stack = [nodeId]
+        const edges = flowEdges.value
+
+        while (stack.length > 0) {
+            const currentId = stack.pop()!
+            for (const edge of edges) {
+                if (edge.source === currentId) {
+                    if (!descendants.has(edge.target)) {
+                        descendants.add(edge.target)
+                        stack.push(edge.target)
+                    }
+                }
             }
-        })
-        return ids
+        }
+        return descendants
     }
 
     /**
@@ -235,7 +315,8 @@ export function useThinkFlow({ t, locale }: { t: Translate; locale: Ref<string>
         edgeType: 'default',
         backgroundVariant: BackgroundVariant.Lines,
         showControls: true,
-        showMiniMap: true
+        showMiniMap: true,
+        hierarchicalDragging: true
     })
 
     const lastAppliedStatus = ref('')
@@ -763,6 +844,7 @@ export function useThinkFlow({ t, locale }: { t: Translate; locale: Ref<string>
         fitView,
         resetLayout,
         centerRoot,
+        handleNodeDrag,
         startNewSession,
         executeReset,
         generateSummary,
diff --git a/src/i18n/locales/en.json b/src/i18n/locales/en.json
index 570c12b..3ff693d 100644
--- a/src/i18n/locales/en.json
+++ b/src/i18n/locales/en.json
@@ -50,7 +50,8 @@
     "summary": "SUMMARY",
     "export": "EXPORT",
     "fullscreen": "Fullscreen",
-    "exitFullscreen": "Exit Fullscreen"
+    "exitFullscreen": "Exit Fullscreen",
+    "hierarchicalDragging": "Linked Drag"
   },
   "settings": {
     "title": "API Settings",
diff --git a/src/i18n/locales/zh.json b/src/i18n/locales/zh.json
index dfe3bc6..202d41f 100644
--- a/src/i18n/locales/zh.json
+++ b/src/i18n/locales/zh.json
@@ -50,7 +50,8 @@
     "summary": "总结",
     "export": "导出",
     "fullscreen": "全屏",
-    "exitFullscreen": "退出全屏"
+    "exitFullscreen": "退出全屏",
+    "hierarchicalDragging": "联动拖拽"
   },
   "settings": {
     "title": "API 设置",
diff --git a/src/style.css b/src/style.css
index 942fc5c..fc03605 100644
--- a/src/style.css
+++ b/src/style.css
@@ -33,6 +33,7 @@ body {
 /* Markdown 渲染基础样式 */
 .markdown-body {
   @apply text-slate-700;
+  padding: 0 1rem;
 }
 
 .markdown-body h1 {