diff --git a/src/App.vue b/src/App.vue
index 8328d31..853716c 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -28,6 +28,7 @@ import ResetConfirmModal from './components/ResetConfirmModal.vue'
 import SettingsModal from './components/SettingsModal.vue'
 import SummaryModal from './components/SummaryModal.vue'
 import TopNav from './components/TopNav.vue'
+import SideNav from './components/SideNav.vue'
 import WindowNode from './components/WindowNode.vue'
 
 // 业务层：统一的状态与动作入口
@@ -43,7 +44,7 @@ const isFullscreen = ref(false)
 
 const toggleFullscreen = () => {
     if (!document.fullscreenElement) {
-        document.documentElement.requestFullscreen().catch((err) => {
+        document.documentElement.requestFullscreen().catch(err => {
             console.error(`Error attempting to enable full-screen mode: ${err.message} (${err.name})`)
         })
     } else {
@@ -150,6 +151,8 @@ const fitToView = () => {
             @toggle-locale="toggleLocale"
         />
 
+        <SideNav :t="t" :locale="locale" :config="config" />
+
         <div class="flex-grow relative">
             <VueFlow
                 :default-edge-options="{ type: config.edgeType }"
@@ -168,7 +171,7 @@ const fitToView = () => {
                     :gap="24"
                     :size="config.backgroundVariant === BackgroundVariant.Dots ? 1 : 0.5"
                 />
-                <Controls v-if="config.showControls" :show-fullscreen="false" :show-fit-view="false">
+                <Controls v-if="false" :show-fullscreen="false" :show-fit-view="false">
                     <ControlButton @click="toggleFullscreen" :title="isFullscreen ? t('nav.exitFullscreen') : t('nav.fullscreen')">
                         <component :is="isFullscreen ? Minimize : Maximize" class="w-4 h-4 text-slate-500" />
                     </ControlButton>
diff --git a/src/components/BottomBar.vue b/src/components/BottomBar.vue
index 84547cd..580150b 100644
--- a/src/components/BottomBar.vue
+++ b/src/components/BottomBar.vue
@@ -32,9 +32,11 @@ const emit = defineEmits<{
 </script>
 
 <template>
-    <div class="fixed bottom-6 md:bottom-12 left-1/2 -translate-x-1/2 z-50 flex flex-col items-center gap-4 w-full max-w-2xl px-4 md:px-6">
+    <div class="fixed bottom-6 md:bottom-8 left-1/2 -translate-x-1/2 z-50 flex flex-col items-center gap-4 w-full max-w-2xl px-4 md:px-6">
         <div class="flex items-center gap-2 md:gap-3 w-full">
-            <div class="flex-grow flex items-center gap-2 md:gap-4 bg-slate-50 border border-slate-200 rounded-xl md:rounded-2xl px-3 md:px-5 py-2 md:py-3 focus-within:bg-white focus-within:shadow-xl focus-within:shadow-slate-100 transition-all">
+            <div
+                class="flex-grow flex items-center gap-2 md:gap-4 bg-slate-50 border border-slate-200 rounded-xl md:rounded-2xl px-3 md:px-5 py-2 md:py-3 focus-within:bg-white focus-within:shadow-xl focus-within:shadow-slate-100 transition-all"
+            >
                 <Terminal class="w-4 h-4 md:w-5 h-5 text-slate-400 flex-shrink-0" />
                 <input
                     :value="props.modelValue"
@@ -55,7 +57,9 @@ const emit = defineEmits<{
             </div>
         </div>
 
-        <div class="flex items-center gap-2 px-3 py-1 bg-white/60 backdrop-blur-sm border border-slate-200/50 rounded-full text-[10px] font-black tracking-widest uppercase select-none shadow-sm">
+        <div
+            class="flex items-center gap-2 px-3 py-1 bg-white/60 backdrop-blur-sm border border-slate-200/50 rounded-full text-[10px] font-black tracking-widest uppercase select-none shadow-sm"
+        >
             <a
                 href="https://github.com/liu-ziting/ThinkFlowAI"
                 target="_blank"
diff --git a/src/components/SideNav.vue b/src/components/SideNav.vue
new file mode 100644
index 0000000..9d3a06f
--- /dev/null
+++ b/src/components/SideNav.vue
@@ -0,0 +1,155 @@
+<script setup lang="ts">
+import { computed, ref, onMounted, onUnmounted } from 'vue'
+import { BackgroundVariant } from '@vue-flow/background'
+import { ArrowLeftRight, Map, Palette, Layers, Grid } from 'lucide-vue-next'
+
+const props = defineProps<{
+    t: any
+    locale: string
+    config: any
+}>()
+
+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 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-side-menu="true"]')) return
+    closeMenus()
+}
+
+onMounted(() => {
+    document.addEventListener('pointerdown', handleDocumentPointerDown)
+})
+
+onUnmounted(() => {
+    document.removeEventListener('pointerdown', handleDocumentPointerDown)
+})
+</script>
+
+<template>
+    <div class="fixed left-4 top-1/2 -translate-y-1/2 z-40 hidden md:flex flex-col gap-3">
+        <div class="bg-white/80 backdrop-blur-md border border-slate-200 rounded-2xl shadow-xl p-2 flex flex-col gap-2">
+            <!-- 联动拖拽 -->
+            <button
+                @click="props.config.hierarchicalDragging = !props.config.hierarchicalDragging"
+                class="side-btn"
+                :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-5 h-5" />
+            </button>
+
+            <!-- 小地图 -->
+            <button
+                @click="props.config.showMiniMap = !props.config.showMiniMap"
+                class="side-btn"
+                :class="props.config.showMiniMap ? 'text-blue-500 bg-blue-50 border-blue-100' : 'text-slate-400 hover:text-slate-600'"
+                :title="props.t('nav.map')"
+            >
+                <Map class="w-5 h-5" />
+            </button>
+
+            <div class="h-px bg-slate-100 mx-2 my-1"></div>
+
+            <!-- 连线颜色 -->
+            <div class="relative group p-2 flex flex-col items-center gap-1 bg-slate-50 rounded-xl border border-slate-100">
+                <Palette class="w-4 h-4 text-slate-400" />
+                <input type="color" v-model="props.config.edgeColor" class="w-5 h-5 rounded-md cursor-pointer bg-transparent border-none" />
+                <span class="text-[8px] font-black text-slate-400 uppercase">{{ props.t('nav.edge') }}</span>
+            </div>
+
+            <!-- 连线类型 -->
+            <div data-side-menu="true" class="relative">
+                <button @click="toggleEdgeTypeMenu" class="side-btn" :class="isEdgeTypeMenuOpen ? 'bg-slate-100 text-slate-900' : 'text-slate-400'" :title="props.t('nav.edge')">
+                    <Layers class="w-5 h-5" />
+                </button>
+                <div v-if="isEdgeTypeMenuOpen" class="absolute left-full ml-3 top-0 bg-white border border-slate-200 rounded-xl shadow-2xl p-1.5 min-w-[120px] z-50 transition-all">
+                    <button
+                        v-for="opt in edgeTypeOptions"
+                        :key="opt.value"
+                        class="w-full text-left px-3 py-2 rounded-lg 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>
+
+            <!-- 背景类型 -->
+            <div data-side-menu="true" class="relative">
+                <button
+                    @click="toggleBackgroundMenu"
+                    class="side-btn"
+                    :class="isBackgroundMenuOpen ? 'bg-slate-100 text-slate-900' : 'text-slate-400'"
+                    :title="props.t('nav.lines')"
+                >
+                    <Grid class="w-5 h-5" />
+                </button>
+                <div
+                    v-if="isBackgroundMenuOpen"
+                    class="absolute left-full ml-3 top-0 bg-white border border-slate-200 rounded-xl shadow-2xl p-1.5 min-w-[100px] z-50 transition-all"
+                >
+                    <button
+                        v-for="opt in backgroundOptions"
+                        :key="String(opt.value)"
+                        class="w-full text-left px-3 py-2 rounded-lg 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>
+    </div>
+</template>
+
+<style scoped>
+.side-btn {
+    @apply w-10 h-10 flex items-center justify-center rounded-xl border border-transparent transition-all active:scale-90 relative;
+}
+.side-btn:hover {
+    @apply border-slate-200 shadow-sm;
+}
+</style>
diff --git a/src/components/TopNav.vue b/src/components/TopNav.vue
index 47bdee2..3c8b3fc 100644
--- a/src/components/TopNav.vue
+++ b/src/components/TopNav.vue
@@ -12,23 +12,7 @@ import { computed, onMounted, onUnmounted, ref } from 'vue'
 import { BackgroundVariant } from '@vue-flow/background'
 
 // 图标：所有按钮与状态展示
-import {
-    ArrowLeftRight,
-    ChevronDown,
-    ChevronUp,
-    Download,
-    Focus,
-    Globe,
-    LayoutDashboard,
-    Map,
-    Menu,
-    Palette,
-    Settings,
-    Sparkles,
-    Target,
-    Trash2,
-    X
-} from 'lucide-vue-next'
+import { ChevronDown, ChevronUp, Download, Focus, LayoutDashboard, Menu, Sparkles, Target, X, Trash2, Globe, Settings } from 'lucide-vue-next'
 
 /**
  * props：
@@ -164,89 +148,6 @@ 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>
-                </button>
-
-                <div class="h-4 w-[1px] bg-slate-100 mx-1 flex-shrink-0"></div>
-
-                <div class="flex items-center gap-2 px-2 md:px-3 py-1.5 bg-slate-50 rounded-lg border border-slate-100 flex-shrink-0">
-                    <Palette class="w-3 h-3 md:w-3.5 h-3.5 text-slate-400" />
-                    <input type="color" v-model="props.config.edgeColor" class="w-3.5 h-3.5 md:w-4 h-4 rounded cursor-pointer bg-transparent border-none" />
-                    <span class="text-[9px] md:text-[10px] font-bold text-slate-500 uppercase">{{ props.t('nav.edge') }}</span>
-                </div>
-
-                <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>
-
-                <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>
-
-                <button
-                    @click="props.config.showMiniMap = !props.config.showMiniMap"
-                    class="toolbar-btn border-slate-100 flex-shrink-0"
-                    :class="props.config.showMiniMap ? 'text-blue-500 bg-blue-50 border-blue-100' : 'text-slate-400 hover:text-slate-600'"
-                    :title="props.t('nav.map')"
-                >
-                    <Map class="w-3.5 h-3.5 md:w-4 h-4" />
-                    <span>{{ props.t('nav.map') }}</span>
-                </button>
-
-                <div class="h-4 w-[1px] bg-slate-100 mx-1 flex-shrink-0"></div>
-
                 <button @click="props.onGenerateSummary" class="toolbar-btn text-orange-600 hover:bg-orange-50 border-orange-100 flex-shrink-0" :title="props.t('nav.summary')">
                     <Sparkles class="w-3.5 h-3.5 md:w-4 h-4" />
                     <span>{{ props.t('nav.summary') }}</span>
@@ -259,9 +160,9 @@ const callAndClose = (fn: () => void) => {
 
                 <div class="h-4 w-[1px] bg-slate-100 mx-1 flex-shrink-0"></div>
 
-                <button @click="props.onOpenSettings" class="toolbar-btn text-slate-600 hover:bg-slate-50 border-slate-100 flex-shrink-0">
-                    <Settings class="w-3.5 h-3.5 md:w-4 h-4" />
-                    <span>{{ props.t('common.settings') }}</span>
+                <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>
                 </button>
             </div>
 
@@ -279,12 +180,23 @@ const callAndClose = (fn: () => void) => {
             </div>
         </div>
 
-        <div class="flex items-center gap-2 md:gap-3 flex-shrink-0">
+        <div class="flex items-center gap-1 md:gap-2 flex-shrink-0">
+            <button
+                @click="props.onOpenSettings"
+                class="p-1.5 md:p-2 hover:bg-slate-100 rounded-md transition-colors text-slate-400 flex items-center gap-1"
+                :title="props.t('common.settings')"
+            >
+                <Settings class="w-3.5 h-3.5 md:w-4 h-4" />
+                <span class="hidden md:inline text-[10px] md:text-xs font-bold">{{ props.t('common.settings') }}</span>
+            </button>
+
+            <div class="h-4 w-[1px] bg-slate-200 mx-1"></div>
+
             <button
                 @click="emit('toggle-locale')"
                 class="p-1.5 md:p-2 hover:bg-slate-100 rounded-md transition-colors text-slate-400 font-bold text-[10px] md:text-xs flex items-center gap-1"
             >
-                <Globe class="w-3 h-3 md:w-3.5 h-3.5" /> {{ props.locale === 'zh' ? 'EN' : 'ZH' }}
+                <Globe class="w-3.5 h-3.5 md:w-4 h-4" /> {{ props.locale === 'zh' ? 'EN' : 'ZH' }}
             </button>
         </div>
     </nav>
@@ -297,7 +209,10 @@ const callAndClose = (fn: () => void) => {
         leave-from-class="transform translate-y-0 opacity-100"
         leave-to-class="transform -translate-y-4 opacity-0"
     >
-        <div v-if="isToolsExpanded" class="md:hidden absolute top-[57px] left-0 right-0 bg-white/95 backdrop-blur-md border-b border-slate-200 shadow-xl z-40 py-4 px-4 flex flex-wrap gap-3 justify-center">
+        <div
+            v-if="isToolsExpanded"
+            class="md:hidden absolute top-[57px] left-0 right-0 bg-white/95 backdrop-blur-md border-b border-slate-200 shadow-xl z-40 py-4 px-4 flex flex-wrap gap-3 justify-center"
+        >
             <button @click="callAndClose(props.onFit)" class="toolbar-btn text-blue-500 hover:bg-blue-50 border-blue-100" :title="props.t('nav.fit')">
                 <Focus class="w-4 h-4" />
                 <span>{{ props.t('nav.fit') }}</span>
@@ -329,10 +244,7 @@ const callAndClose = (fn: () => void) => {
                     <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"
-                >
+                <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"
@@ -351,10 +263,7 @@ const callAndClose = (fn: () => void) => {
                     <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"
-                >
+                <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)"
@@ -387,11 +296,6 @@ const callAndClose = (fn: () => void) => {
                 <Download class="w-4 h-4" />
                 <span>{{ props.t('nav.export') }}</span>
             </button>
-
-            <button @click="callAndClose(props.onOpenSettings)" class="toolbar-btn text-slate-600 hover:bg-slate-50 border-slate-100">
-                <Settings class="w-4 h-4" />
-                <span>{{ props.t('common.settings') }}</span>
-            </button>
         </div>
     </Transition>
 </template>