diff --git a/frontend/src/components/layout/ViewerPanel.vue b/frontend/src/components/layout/ViewerPanel.vue
index ffdaf7e..82a399c 100644
--- a/frontend/src/components/layout/ViewerPanel.vue
+++ b/frontend/src/components/layout/ViewerPanel.vue
@@ -3,7 +3,7 @@ import { computed } from 'vue'
 import { useModelsStore } from '@/stores/models'
 import { useViewerStore } from '@/stores/viewer'
 import ModelViewer from '@/components/viewer/ModelViewer.vue'
-import FeaturePanel from '@/components/viewer/FeaturePanel.vue'
+import FloatingToolbar from '@/components/viewer/toolbar/FloatingToolbar.vue'
 
 const modelsStore = useModelsStore()
 const viewerStore = useViewerStore()
@@ -20,7 +20,7 @@ const isModelReady = computed(() =>
       <template v-if="hasSelectedModel">
         <template v-if="isModelReady">
           <ModelViewer :model-id="modelsStore.selectedModelId!" />
-          <FeaturePanel />
+          <FloatingToolbar />
         </template>
         <div v-else class="empty-state">
           <div v-if="viewerStore.isLoading" class="loading">
diff --git a/frontend/src/components/viewer/ExplodedView.vue b/frontend/src/components/viewer/ExplodedView.vue
deleted file mode 100644
index 8e009b6..0000000
--- a/frontend/src/components/viewer/ExplodedView.vue
+++ /dev/null
@@ -1,153 +0,0 @@
-<script setup lang="ts">
-import { ref, watch, onUnmounted } from 'vue'
-import { useViewerStore } from '@/stores/viewer'
-import { getExplodeService, resetExplodeService } from '@/services/explodeService'
-import { getRenderService } from '@/services/renderService'
-import { getClippingService } from '@/services/clippingService'
-import { getPartsTreeService } from '@/services/partsTreeService'
-
-const viewerStore = useViewerStore()
-const isInitialized = ref(false)
-const partsCount = ref(0)
-const isAnimating = ref(false)
-const isDragging = ref(false)
-
-// Initialize when model changes (not scene - scene reference stays the same)
-watch(
-  () => viewerStore.model,
-  (model) => {
-    if (model && viewerStore.scene) {
-      const service = getExplodeService()
-      service.initializeFromScene(viewerStore.scene, () => viewerStore.forceRender())
-      isInitialized.value = service.isInitialized()
-      partsCount.value = service.getPartsCount()
-    }
-  },
-  { immediate: true }
-)
-
-// Apply explosion when factor changes (immediate for slider dragging)
-watch(
-  () => viewerStore.explosionFactor,
-  (factor) => {
-    if (isInitialized.value && !isAnimating.value) {
-      const service = getExplodeService()
-      // Pass isDragging to skip expensive operations during drag
-      service.applyExplosion(factor, isDragging.value)
-      viewerStore.forceRender()
-    }
-  }
-)
-
-onUnmounted(() => {
-  resetExplodeService()
-})
-
-function handleSliderInput(event: Event) {
-  // Mark as dragging to skip expensive operations
-  isDragging.value = true
-  const target = event.target as HTMLInputElement
-  viewerStore.setExplosionFactor(Number(target.value))
-}
-
-function handleSliderChange() {
-  // Drag ended - execute expensive sync operations now
-  isDragging.value = false
-  finalizeExplosion()
-}
-
-function finalizeExplosion() {
-  // Execute expensive operations that were skipped during dragging
-  getRenderService().syncEdgeTransforms()
-  getClippingService().updateBounds()
-  getPartsTreeService().syncSelectionOverlays()
-  viewerStore.forceRender()
-}
-
-function handlePlayAnimation() {
-  if (isAnimating.value || !isInitialized.value || partsCount.value < 2) return
-
-  const service = getExplodeService()
-  const currentFactor = viewerStore.explosionFactor
-  // Toggle: if <= 50% go to 100%, if > 50% go to 0%
-  const targetFactor = currentFactor <= 50 ? 100 : 0
-
-  isAnimating.value = true
-  service.animateExplosion(targetFactor, 800, () => {
-    viewerStore.setExplosionFactor(targetFactor)
-    isAnimating.value = false
-  })
-}
-
-// Computed: button label based on current factor
-function getButtonLabel(): string {
-  return viewerStore.explosionFactor <= 50 ? '爆炸' : '收回'
-}
-</script>
-
-<template>
-  <div class="feature-section">
-    <div class="feature-header">
-      <h4>爆炸图</h4>
-      <div class="header-controls">
-        <button
-          class="btn btn-sm"
-          :class="viewerStore.explosionFactor > 50 ? 'btn-primary' : 'btn-secondary'"
-          :disabled="!isInitialized || partsCount < 2 || isAnimating"
-          @click="handlePlayAnimation"
-        >
-          {{ getButtonLabel() }}
-        </button>
-      </div>
-    </div>
-
-    <div v-if="isInitialized && partsCount >= 2" class="slider-container">
-      <input
-        type="range"
-        class="slider"
-        min="0"
-        max="100"
-        :value="viewerStore.explosionFactor"
-        :disabled="isAnimating"
-        @input="handleSliderInput"
-        @change="handleSliderChange"
-      />
-      <span class="slider-value">{{ viewerStore.explosionFactor }}%</span>
-    </div>
-
-    <div v-if="partsCount > 0" class="feature-info">
-      <small>检测到 {{ partsCount }} 个零件</small>
-    </div>
-  </div>
-</template>
-
-<style scoped>
-.feature-header {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  margin-bottom: 8px;
-}
-
-.feature-header h4 {
-  margin: 0;
-}
-
-.header-controls {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.feature-info {
-  margin-top: 8px;
-  color: var(--text-secondary);
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.feature-info small {
-  font-size: 11px;
-}
-</style>
diff --git a/frontend/src/components/viewer/FeaturePanel.vue b/frontend/src/components/viewer/FeaturePanel.vue
deleted file mode 100644
index 65e3b8c..0000000
--- a/frontend/src/components/viewer/FeaturePanel.vue
+++ /dev/null
@@ -1,18 +0,0 @@
-<script setup lang="ts">
-import { useViewerStore } from '@/stores/viewer'
-import ExplodedView from './ExplodedView.vue'
-import CrossSection from './CrossSection.vue'
-import RenderSettings from './RenderSettings.vue'
-import ThumbnailCapture from './ThumbnailCapture.vue'
-
-const viewerStore = useViewerStore()
-</script>
-
-<template>
-  <div v-if="viewerStore.model" class="feature-panel">
-    <RenderSettings />
-    <ExplodedView />
-    <CrossSection />
-    <ThumbnailCapture />
-  </div>
-</template>
diff --git a/frontend/src/components/viewer/RenderSettings.vue b/frontend/src/components/viewer/RenderSettings.vue
deleted file mode 100644
index cee185f..0000000
--- a/frontend/src/components/viewer/RenderSettings.vue
+++ /dev/null
@@ -1,481 +0,0 @@
-<script setup lang="ts">
-import { computed, watch, onUnmounted } from 'vue'
-import { useViewerStore } from '@/stores/viewer'
-import { getPartsTreeService, MaterialType } from '@/services/partsTreeService'
-import { getRenderService, resetRenderService, RenderMode } from '@/services/renderService'
-
-const viewerStore = useViewerStore()
-
-const renderMode = computed({
-  get: () => viewerStore.renderSettings.renderMode,
-  set: (value) => viewerStore.setRenderMode(value),
-})
-
-// Check if in special render mode (where certain controls should be disabled)
-const isSpecialRenderMode = computed(() =>
-  renderMode.value === 'hiddenLine' || renderMode.value === 'wireframe'
-)
-
-const edgesEnabled = computed({
-  get: () => viewerStore.renderSettings.edgesEnabled,
-  set: (value) => viewerStore.setEdgesEnabled(value),
-})
-
-const edgeLineWidth = computed({
-  get: () => viewerStore.renderSettings.edgeLineWidth,
-  set: (value) => viewerStore.setEdgeLineWidth(value),
-})
-
-const autoColorEnabled = computed({
-  get: () => viewerStore.renderSettings.autoColorEnabled,
-  set: (value) => viewerStore.setAutoColorEnabled(value),
-})
-
-const materialType = computed({
-  get: () => viewerStore.renderSettings.materialType,
-  set: (value) => viewerStore.setMaterialType(value),
-})
-
-// Lighting settings
-const exposure = computed({
-  get: () => viewerStore.renderSettings.exposure,
-  set: (value) => viewerStore.setExposure(value),
-})
-
-const mainLightIntensity = computed({
-  get: () => viewerStore.renderSettings.mainLightIntensity,
-  set: (value) => viewerStore.setMainLightIntensity(value),
-})
-
-const ambientLightIntensity = computed({
-  get: () => viewerStore.renderSettings.ambientLightIntensity,
-  set: (value) => viewerStore.setAmbientLightIntensity(value),
-})
-
-// Initialize render service when scene is available
-watch(
-  () => viewerStore.scene,
-  (scene) => {
-    if (scene) {
-      const renderService = getRenderService()
-      renderService.initialize(scene, viewerStore.renderer)
-
-      // Apply edge line setting immediately after initialization
-      if (viewerStore.renderSettings.edgesEnabled) {
-        renderService.setEdgesEnabled(true)
-      }
-    }
-  },
-  { immediate: true }
-)
-
-// Watch edge line toggle
-watch(
-  () => viewerStore.renderSettings.edgesEnabled,
-  (enabled) => {
-    const renderService = getRenderService()
-    if (renderService.isInitialized()) {
-      renderService.setEdgesEnabled(enabled)
-      viewerStore.forceRender()
-    }
-  }
-)
-
-// Watch edge line width changes
-watch(
-  () => viewerStore.renderSettings.edgeLineWidth,
-  (width) => {
-    const renderService = getRenderService()
-    if (renderService.isInitialized()) {
-      renderService.setEdgeLineWidth(width)
-      viewerStore.forceRender()
-    }
-  }
-)
-
-// Watch auto-color changes and apply/reset colors
-watch(
-  () => viewerStore.renderSettings.autoColorEnabled,
-  (enabled) => {
-    const service = getPartsTreeService()
-    if (enabled) {
-      service.applyAutoColors()
-    } else {
-      service.resetToOriginalColors()
-    }
-    viewerStore.forceRender()
-  }
-)
-
-// Watch material type changes
-watch(
-  () => viewerStore.renderSettings.materialType,
-  (type) => {
-    const service = getPartsTreeService()
-    const materialTypeMap: Record<string, MaterialType> = {
-      'clay': MaterialType.Clay,
-      'metal': MaterialType.Metal,
-      'paint': MaterialType.Paint,
-    }
-    service.setGlobalMaterial(materialTypeMap[type])
-    viewerStore.forceRender()
-  }
-)
-
-// Watch render mode changes
-watch(
-  () => viewerStore.renderSettings.renderMode,
-  (mode) => {
-    const renderService = getRenderService()
-    if (renderService.isInitialized()) {
-      const modeMap: Record<string, RenderMode> = {
-        'standard': RenderMode.Standard,
-        'hiddenLine': RenderMode.HiddenLine,
-        'wireframe': RenderMode.Wireframe,
-      }
-      renderService.setRenderMode(modeMap[mode])
-      viewerStore.forceRender()
-    }
-  }
-)
-
-// Watch exposure (scene brightness) changes
-watch(
-  () => viewerStore.renderSettings.exposure,
-  (value) => {
-    const renderService = getRenderService()
-    if (renderService.isInitialized()) {
-      renderService.setToneMappingExposure(value)
-      viewerStore.forceRender()
-    }
-  }
-)
-
-// Watch main light intensity changes
-watch(
-  () => viewerStore.renderSettings.mainLightIntensity,
-  (value) => {
-    const renderService = getRenderService()
-    if (renderService.isInitialized()) {
-      renderService.setMainLightIntensity(value)
-      viewerStore.forceRender()
-    }
-  }
-)
-
-// Watch ambient light intensity changes
-watch(
-  () => viewerStore.renderSettings.ambientLightIntensity,
-  (value) => {
-    const renderService = getRenderService()
-    if (renderService.isInitialized()) {
-      renderService.setAmbientLightIntensity(value)
-      viewerStore.forceRender()
-    }
-  }
-)
-
-onUnmounted(() => {
-  resetRenderService()
-})
-</script>
-
-<template>
-  <div class="feature-section">
-    <h4>渲染设置</h4>
-
-    <div class="setting-row" :class="{ disabled: isSpecialRenderMode }">
-      <label class="toggle-label" :class="{ disabled: isSpecialRenderMode }">
-        <input
-          v-model="edgesEnabled"
-          type="checkbox"
-          class="toggle-checkbox"
-          :disabled="isSpecialRenderMode"
-        />
-        <span class="toggle-switch"></span>
-        <span class="toggle-text">
-          边缘线
-          <span v-if="isSpecialRenderMode" class="hint-inline">(自动启用)</span>
-        </span>
-      </label>
-    </div>
-
-    <div v-if="edgesEnabled || isSpecialRenderMode" class="setting-row slider-row">
-      <span class="setting-label">线宽</span>
-      <div class="slider-container">
-        <input
-          v-model.number="edgeLineWidth"
-          type="range"
-          min="0.5"
-          max="5"
-          step="0.5"
-          class="slider"
-        />
-        <span class="slider-value">{{ edgeLineWidth }}px</span>
-      </div>
-    </div>
-
-    <div class="setting-row">
-      <label class="toggle-label">
-        <input
-          v-model="autoColorEnabled"
-          type="checkbox"
-          class="toggle-checkbox"
-        />
-        <span class="toggle-switch"></span>
-        <span class="toggle-text">
-          自动着色
-        </span>
-      </label>
-    </div>
-
-    <div class="setting-row material-row">
-      <span class="setting-label">渲染模式</span>
-      <div class="material-buttons">
-        <button
-          :class="['material-btn', { active: renderMode === 'standard' }]"
-          @click="renderMode = 'standard'"
-          title="标准实体渲染"
-        >
-          实体
-        </button>
-        <button
-          :class="['material-btn', { active: renderMode === 'hiddenLine' }]"
-          @click="renderMode = 'hiddenLine'"
-          title="消隐线模式"
-        >
-          消隐
-        </button>
-        <button
-          :class="['material-btn', { active: renderMode === 'wireframe' }]"
-          @click="renderMode = 'wireframe'"
-          title="线框模式"
-        >
-          线框
-        </button>
-      </div>
-    </div>
-
-    <div class="setting-row material-row" :class="{ disabled: isSpecialRenderMode }">
-      <span class="setting-label">材质类型</span>
-      <div class="material-buttons">
-        <button
-          :class="['material-btn', { active: materialType === 'clay' }]"
-          :disabled="isSpecialRenderMode"
-          @click="materialType = 'clay'"
-          title="白模材质 - 结构展示"
-        >
-          白模
-        </button>
-        <button
-          :class="['material-btn', { active: materialType === 'metal' }]"
-          :disabled="isSpecialRenderMode"
-          @click="materialType = 'metal'"
-          title="金属材质"
-        >
-          金属
-        </button>
-        <button
-          :class="['material-btn', { active: materialType === 'paint' }]"
-          :disabled="isSpecialRenderMode"
-          @click="materialType = 'paint'"
-          title="工业哑光烤漆"
-        >
-          烤漆
-        </button>
-      </div>
-    </div>
-
-    <p v-if="autoColorEnabled" class="hint">
-      明亮色系已应用到各零件
-    </p>
-
-    <div class="setting-row section-divider">
-      <span class="setting-label section-title">光照设置</span>
-    </div>
-
-    <div class="setting-row slider-row">
-      <span class="setting-label">整体亮度</span>
-      <div class="slider-container">
-        <input
-          v-model.number="exposure"
-          type="range"
-          min="0.1"
-          max="3"
-          step="0.1"
-          class="slider"
-        />
-        <span class="slider-value">{{ exposure.toFixed(1) }}</span>
-      </div>
-    </div>
-
-    <div class="setting-row slider-row">
-      <span class="setting-label">主光亮度</span>
-      <div class="slider-container">
-        <input
-          v-model.number="mainLightIntensity"
-          type="range"
-          min="0"
-          max="2"
-          step="0.1"
-          class="slider"
-        />
-        <span class="slider-value">{{ mainLightIntensity.toFixed(1) }}</span>
-      </div>
-    </div>
-
-    <div class="setting-row slider-row">
-      <span class="setting-label">环境亮度</span>
-      <div class="slider-container">
-        <input
-          v-model.number="ambientLightIntensity"
-          type="range"
-          min="0"
-          max="2"
-          step="0.1"
-          class="slider"
-        />
-        <span class="slider-value">{{ ambientLightIntensity.toFixed(1) }}</span>
-      </div>
-    </div>
-  </div>
-</template>
-
-<style scoped>
-.setting-row {
-  margin-top: 10px;
-}
-
-.section-divider {
-  margin-top: 16px;
-  padding-top: 12px;
-  border-top: 1px solid var(--border-color);
-}
-
-.section-title {
-  font-weight: 500;
-  color: var(--text-primary);
-}
-
-.hint {
-  margin-top: 8px;
-  font-size: 11px;
-  color: var(--text-secondary);
-}
-
-.hint-inline {
-  font-size: 11px;
-  color: var(--text-secondary);
-  font-style: italic;
-}
-
-.toggle-label.disabled {
-  cursor: not-allowed;
-  opacity: 0.6;
-}
-
-.setting-row.disabled {
-  opacity: 0.7;
-}
-
-/* Material type selector */
-.material-row {
-  display: flex;
-  flex-direction: column;
-  gap: 8px;
-}
-
-.setting-label {
-  font-size: 13px;
-  color: var(--text-primary);
-}
-
-.material-buttons {
-  display: flex;
-  gap: 6px;
-}
-
-.material-btn {
-  flex: 1;
-  padding: 6px 8px;
-  font-size: 12px;
-  border: 1px solid var(--border-color);
-  border-radius: 6px;
-  background: var(--bg-secondary);
-  color: var(--text-primary);
-  cursor: pointer;
-  transition: all 0.2s ease;
-}
-
-.material-btn:hover {
-  background: var(--bg-tertiary);
-  border-color: var(--primary-color);
-}
-
-.material-btn.active {
-  background: var(--primary-color);
-  border-color: var(--primary-color);
-  color: white;
-}
-
-.material-btn:disabled {
-  opacity: 0.5;
-  cursor: not-allowed;
-}
-
-.material-btn:disabled:hover {
-  background: var(--bg-secondary);
-  border-color: var(--border-color);
-}
-
-.material-row.disabled {
-  opacity: 0.6;
-}
-
-/* Slider row */
-.slider-row {
-  display: flex;
-  flex-direction: column;
-  gap: 6px;
-}
-
-.slider-container {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-}
-
-.slider {
-  flex: 1;
-  height: 4px;
-  appearance: none;
-  background: var(--bg-tertiary);
-  border-radius: 2px;
-  outline: none;
-}
-
-.slider::-webkit-slider-thumb {
-  appearance: none;
-  width: 14px;
-  height: 14px;
-  border-radius: 50%;
-  background: var(--primary-color);
-  cursor: pointer;
-}
-
-.slider::-moz-range-thumb {
-  width: 14px;
-  height: 14px;
-  border-radius: 50%;
-  background: var(--primary-color);
-  cursor: pointer;
-  border: none;
-}
-
-.slider-value {
-  min-width: 40px;
-  font-size: 12px;
-  color: var(--text-secondary);
-  text-align: right;
-}
-</style>
diff --git a/frontend/src/components/viewer/ThumbnailCapture.vue b/frontend/src/components/viewer/ThumbnailCapture.vue
deleted file mode 100644
index 747279b..0000000
--- a/frontend/src/components/viewer/ThumbnailCapture.vue
+++ /dev/null
@@ -1,288 +0,0 @@
-<script setup lang="ts">
-import { ref, onMounted, onUnmounted } from 'vue'
-import { useViewerStore } from '@/stores/viewer'
-import { captureFullScreenshot } from '@/services/screenshotService'
-
-const viewerStore = useViewerStore()
-
-const isCapturing = ref(false)
-const showPreview = ref(false)
-const previewUrl = ref<string | null>(null)
-const screenshotBlob = ref<Blob | null>(null)
-
-async function captureScreenshot() {
-  if (!viewerStore.renderer || !viewerStore.scene || !viewerStore.camera) {
-    return
-  }
-
-  isCapturing.value = true
-
-  try {
-    const blob = await captureFullScreenshot(
-      viewerStore.renderer,
-      viewerStore.scene,
-      viewerStore.camera
-    )
-
-    screenshotBlob.value = blob
-    previewUrl.value = URL.createObjectURL(blob)
-    showPreview.value = true
-  } catch (error) {
-    console.error('Failed to capture screenshot:', error)
-  } finally {
-    isCapturing.value = false
-  }
-}
-
-function downloadScreenshot() {
-  if (!screenshotBlob.value) return
-
-  const now = new Date()
-  const timestamp = now.toISOString().replace(/[-:T]/g, '').slice(0, 14)
-  const filename = `screenshot_${timestamp}.png`
-
-  const url = URL.createObjectURL(screenshotBlob.value)
-  const a = document.createElement('a')
-  a.href = url
-  a.download = filename
-  document.body.appendChild(a)
-  a.click()
-  document.body.removeChild(a)
-  URL.revokeObjectURL(url)
-
-  closePreview()
-}
-
-function closePreview() {
-  if (previewUrl.value) {
-    URL.revokeObjectURL(previewUrl.value)
-  }
-  showPreview.value = false
-  previewUrl.value = null
-  screenshotBlob.value = null
-}
-
-function handleKeydown(e: KeyboardEvent) {
-  if (e.key === 'Escape' && showPreview.value) {
-    closePreview()
-  }
-}
-
-function handleOverlayClick(e: MouseEvent) {
-  if ((e.target as HTMLElement).classList.contains('preview-overlay')) {
-    closePreview()
-  }
-}
-
-onMounted(() => {
-  window.addEventListener('keydown', handleKeydown)
-})
-
-onUnmounted(() => {
-  window.removeEventListener('keydown', handleKeydown)
-  if (previewUrl.value) {
-    URL.revokeObjectURL(previewUrl.value)
-  }
-})
-</script>
-
-<template>
-  <div class="feature-section screenshot-capture">
-    <h4>截图</h4>
-    <div class="capture-row">
-      <button
-        class="capture-btn"
-        :disabled="isCapturing || !viewerStore.model"
-        @click="captureScreenshot"
-        title="截取当前视图"
-      >
-        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="icon">
-          <path d="M23 19a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h4l2-3h6l2 3h4a2 2 0 0 1 2 2z"/>
-          <circle cx="12" cy="13" r="4"/>
-        </svg>
-        <span>{{ isCapturing ? '截图中...' : '截图' }}</span>
-      </button>
-    </div>
-  </div>
-
-  <Teleport to="body">
-    <div
-      v-if="showPreview"
-      class="preview-overlay"
-      @click="handleOverlayClick"
-    >
-      <div class="preview-modal">
-        <div class="preview-image-container">
-          <img
-            v-if="previewUrl"
-            :src="previewUrl"
-            alt="Screenshot preview"
-            class="preview-image"
-          />
-        </div>
-        <div class="preview-actions">
-          <button class="btn-download" @click="downloadScreenshot">
-            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="icon">
-              <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
-              <polyline points="7 10 12 15 17 10"/>
-              <line x1="12" y1="15" x2="12" y2="3"/>
-            </svg>
-            下载
-          </button>
-          <button class="btn-cancel" @click="closePreview">
-            取消
-          </button>
-        </div>
-      </div>
-    </div>
-  </Teleport>
-</template>
-
-<style scoped>
-.screenshot-capture {
-  margin-top: 10px;
-}
-
-.capture-row {
-  display: flex;
-  align-items: center;
-  gap: 10px;
-}
-
-.capture-btn {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  padding: 8px 14px;
-  font-size: 13px;
-  border: 1px solid var(--border-color);
-  border-radius: 6px;
-  background: var(--bg-secondary);
-  color: var(--text-primary);
-  cursor: pointer;
-  transition: all 0.2s ease;
-}
-
-.capture-btn:hover:not(:disabled) {
-  background: var(--bg-tertiary);
-  border-color: var(--primary-color);
-}
-
-.capture-btn:disabled {
-  opacity: 0.5;
-  cursor: not-allowed;
-}
-
-.capture-btn .icon {
-  width: 16px;
-  height: 16px;
-}
-
-/* Preview overlay */
-.preview-overlay {
-  position: fixed;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  background: rgba(0, 0, 0, 0.75);
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  z-index: 9999;
-  backdrop-filter: blur(4px);
-  animation: fade-in 0.2s ease;
-}
-
-@keyframes fade-in {
-  from { opacity: 0; }
-  to { opacity: 1; }
-}
-
-.preview-modal {
-  background: var(--bg-primary);
-  border-radius: var(--radius-xl);
-  box-shadow: var(--shadow-xl);
-  max-width: 90vw;
-  max-height: 90vh;
-  display: flex;
-  flex-direction: column;
-  overflow: hidden;
-  animation: scale-in 0.2s ease;
-}
-
-@keyframes scale-in {
-  from {
-    opacity: 0;
-    transform: scale(0.95);
-  }
-  to {
-    opacity: 1;
-    transform: scale(1);
-  }
-}
-
-.preview-image-container {
-  padding: var(--space-4);
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  background: var(--bg-secondary);
-}
-
-.preview-image {
-  max-width: 100%;
-  max-height: 70vh;
-  object-fit: contain;
-  border-radius: var(--radius-md);
-  box-shadow: var(--shadow-lg);
-}
-
-.preview-actions {
-  display: flex;
-  gap: var(--space-3);
-  padding: var(--space-4);
-  justify-content: center;
-  border-top: 1px solid var(--border-color);
-}
-
-.btn-download,
-.btn-cancel {
-  display: flex;
-  align-items: center;
-  gap: 6px;
-  padding: 10px 20px;
-  font-size: 14px;
-  font-weight: 500;
-  border: none;
-  border-radius: var(--radius-md);
-  cursor: pointer;
-  transition: all 0.2s ease;
-}
-
-.btn-download {
-  background: var(--primary-color);
-  color: white;
-}
-
-.btn-download:hover {
-  background: var(--primary-hover);
-  transform: translateY(-1px);
-}
-
-.btn-download .icon {
-  width: 16px;
-  height: 16px;
-}
-
-.btn-cancel {
-  background: var(--bg-tertiary);
-  color: var(--text-secondary);
-  border: 1px solid var(--border-color);
-}
-
-.btn-cancel:hover {
-  background: var(--bg-sunken);
-  color: var(--text-primary);
-}
-</style>
diff --git a/frontend/src/components/viewer/toolbar/ExplodePopup.vue b/frontend/src/components/viewer/toolbar/ExplodePopup.vue
new file mode 100644
index 0000000..d98d722
--- /dev/null
+++ b/frontend/src/components/viewer/toolbar/ExplodePopup.vue
@@ -0,0 +1,176 @@
+<script setup lang="ts">
+import { ref, watch, onUnmounted, computed } from 'vue'
+import { useViewerStore } from '@/stores/viewer'
+import { getExplodeService, resetExplodeService } from '@/services/explodeService'
+import { getRenderService } from '@/services/renderService'
+import { getClippingService } from '@/services/clippingService'
+import { getPartsTreeService } from '@/services/partsTreeService'
+import ToolbarPopup from './ToolbarPopup.vue'
+
+defineProps<{
+  show: boolean
+}>()
+
+const emit = defineEmits<{
+  close: []
+}>()
+
+const viewerStore = useViewerStore()
+const isInitialized = ref(false)
+const partsCount = ref(0)
+const isAnimating = ref(false)
+const isDragging = ref(false)
+
+// Initialize when model changes
+watch(
+  () => viewerStore.model,
+  (model) => {
+    if (model && viewerStore.scene) {
+      const service = getExplodeService()
+      service.initializeFromScene(viewerStore.scene, () => viewerStore.forceRender())
+      isInitialized.value = service.isInitialized()
+      partsCount.value = service.getPartsCount()
+    }
+  },
+  { immediate: true }
+)
+
+// Apply explosion when factor changes
+watch(
+  () => viewerStore.explosionFactor,
+  (factor) => {
+    if (isInitialized.value && !isAnimating.value) {
+      const service = getExplodeService()
+      service.applyExplosion(factor, isDragging.value)
+      viewerStore.forceRender()
+    }
+  }
+)
+
+onUnmounted(() => {
+  resetExplodeService()
+})
+
+function handleSliderInput(event: Event) {
+  isDragging.value = true
+  const target = event.target as HTMLInputElement
+  viewerStore.setExplosionFactor(Number(target.value))
+}
+
+function handleSliderChange() {
+  isDragging.value = false
+  finalizeExplosion()
+}
+
+function finalizeExplosion() {
+  getRenderService().syncEdgeTransforms()
+  getClippingService().updateBounds()
+  getPartsTreeService().syncSelectionOverlays()
+  viewerStore.forceRender()
+}
+
+const canExplode = computed(() => isInitialized.value && partsCount.value >= 2)
+</script>
+
+<template>
+  <ToolbarPopup :show="show" title="爆炸图" @close="emit('close')">
+    <div v-if="canExplode" class="explode-content">
+      <div class="slider-row">
+        <span class="label">爆炸系数</span>
+        <div class="slider-container">
+          <input
+            type="range"
+            class="slider"
+            min="0"
+            max="100"
+            :value="viewerStore.explosionFactor"
+            @input="handleSliderInput"
+            @change="handleSliderChange"
+          />
+          <span class="slider-value">{{ viewerStore.explosionFactor }}%</span>
+        </div>
+      </div>
+      <div class="info-row">
+        <span class="info-text">检测到 {{ partsCount }} 个零件</span>
+      </div>
+    </div>
+    <div v-else class="empty-state">
+      <span>需要至少2个零件才能使用爆炸图</span>
+    </div>
+  </ToolbarPopup>
+</template>
+
+<style scoped>
+.explode-content {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-3);
+}
+
+.slider-row {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-2);
+}
+
+.label {
+  font-size: 12px;
+  color: var(--text-secondary);
+}
+
+.slider-container {
+  display: flex;
+  align-items: center;
+  gap: var(--space-3);
+}
+
+.slider {
+  flex: 1;
+  -webkit-appearance: none;
+  height: 4px;
+  border-radius: 2px;
+  background: var(--bg-tertiary);
+}
+
+.slider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--primary-color);
+  cursor: pointer;
+}
+
+.slider::-moz-range-thumb {
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--primary-color);
+  cursor: pointer;
+  border: none;
+}
+
+.slider-value {
+  min-width: 40px;
+  font-size: 12px;
+  color: var(--text-secondary);
+  text-align: right;
+}
+
+.info-row {
+  padding-top: var(--space-2);
+  border-top: 1px solid var(--border-subtle);
+}
+
+.info-text {
+  font-size: 11px;
+  color: var(--text-tertiary);
+}
+
+.empty-state {
+  font-size: 12px;
+  color: var(--text-secondary);
+  text-align: center;
+  padding: var(--space-2);
+}
+</style>
diff --git a/frontend/src/components/viewer/toolbar/FloatingToolbar.vue b/frontend/src/components/viewer/toolbar/FloatingToolbar.vue
new file mode 100644
index 0000000..ed66585
--- /dev/null
+++ b/frontend/src/components/viewer/toolbar/FloatingToolbar.vue
@@ -0,0 +1,456 @@
+<script setup lang="ts">
+import { ref, computed, watch, onMounted, onUnmounted } from 'vue'
+import { useViewerStore } from '@/stores/viewer'
+import { getRenderService } from '@/services/renderService'
+import { getPartsTreeService } from '@/services/partsTreeService'
+import { getExplodeService } from '@/services/explodeService'
+import { captureFullScreenshot } from '@/services/screenshotService'
+
+import ToolbarButton from './ToolbarButton.vue'
+import RenderModeSelector from './RenderModeSelector.vue'
+import ExplodePopup from './ExplodePopup.vue'
+import SectionPopup from './SectionPopup.vue'
+import RenderPopup from './RenderPopup.vue'
+
+const viewerStore = useViewerStore()
+
+// Active popup state
+const activePopup = ref<'explode' | 'section' | 'render' | null>(null)
+
+// Screenshot state
+const isCapturing = ref(false)
+const showPreview = ref(false)
+const previewUrl = ref<string | null>(null)
+const screenshotBlob = ref<Blob | null>(null)
+
+// Explode animation state
+const isExplodeAnimating = ref(false)
+
+// Computed states
+const edgesEnabled = computed(() => viewerStore.renderSettings.edgesEnabled)
+const autoColorEnabled = computed(() => viewerStore.renderSettings.autoColorEnabled)
+const hasActiveCrossSection = computed(() =>
+  viewerStore.crossSection.x.enabled ||
+  viewerStore.crossSection.y.enabled ||
+  viewerStore.crossSection.z.enabled
+)
+const isExploded = computed(() => viewerStore.explosionFactor > 0)
+
+// Watch edge line toggle
+watch(
+  () => viewerStore.renderSettings.edgesEnabled,
+  (enabled) => {
+    const renderService = getRenderService()
+    if (renderService.isInitialized()) {
+      renderService.setEdgesEnabled(enabled)
+      viewerStore.forceRender()
+    }
+  }
+)
+
+// Watch auto-color changes
+watch(
+  () => viewerStore.renderSettings.autoColorEnabled,
+  (enabled) => {
+    const service = getPartsTreeService()
+    if (enabled) {
+      service.applyAutoColors()
+    } else {
+      service.resetToOriginalColors()
+    }
+    viewerStore.forceRender()
+  }
+)
+
+function togglePopup(popup: 'explode' | 'section' | 'render') {
+  activePopup.value = activePopup.value === popup ? null : popup
+}
+
+function closePopup() {
+  activePopup.value = null
+}
+
+function toggleEdges() {
+  viewerStore.setEdgesEnabled(!edgesEnabled.value)
+}
+
+function toggleAutoColor() {
+  viewerStore.setAutoColorEnabled(!autoColorEnabled.value)
+}
+
+function handleExplodeClick() {
+  // Single click triggers animation
+  const service = getExplodeService()
+  if (!service.isInitialized() || service.getPartsCount() < 2) {
+    togglePopup('explode')
+    return
+  }
+
+  const currentFactor = viewerStore.explosionFactor
+  const targetFactor = currentFactor <= 50 ? 100 : 0
+
+  isExplodeAnimating.value = true
+  service.animateExplosion(targetFactor, 800, () => {
+    viewerStore.setExplosionFactor(targetFactor)
+    isExplodeAnimating.value = false
+  })
+}
+
+async function captureScreenshot() {
+  if (!viewerStore.renderer || !viewerStore.scene || !viewerStore.camera) {
+    return
+  }
+
+  isCapturing.value = true
+
+  try {
+    const blob = await captureFullScreenshot(
+      viewerStore.renderer,
+      viewerStore.scene,
+      viewerStore.camera
+    )
+
+    screenshotBlob.value = blob
+    previewUrl.value = URL.createObjectURL(blob)
+    showPreview.value = true
+  } catch (error) {
+    console.error('Failed to capture screenshot:', error)
+  } finally {
+    isCapturing.value = false
+  }
+}
+
+function downloadScreenshot() {
+  if (!screenshotBlob.value) return
+
+  const now = new Date()
+  const timestamp = now.toISOString().replace(/[-:T]/g, '').slice(0, 14)
+  const filename = `screenshot_${timestamp}.png`
+
+  const url = URL.createObjectURL(screenshotBlob.value)
+  const a = document.createElement('a')
+  a.href = url
+  a.download = filename
+  document.body.appendChild(a)
+  a.click()
+  document.body.removeChild(a)
+  URL.revokeObjectURL(url)
+
+  closePreview()
+}
+
+function closePreview() {
+  if (previewUrl.value) {
+    URL.revokeObjectURL(previewUrl.value)
+  }
+  showPreview.value = false
+  previewUrl.value = null
+  screenshotBlob.value = null
+}
+
+function handleKeydown(e: KeyboardEvent) {
+  if (e.key === 'Escape') {
+    if (showPreview.value) {
+      closePreview()
+    } else if (activePopup.value) {
+      closePopup()
+    }
+  }
+}
+
+function handleOverlayClick(e: MouseEvent) {
+  if ((e.target as HTMLElement).classList.contains('preview-overlay')) {
+    closePreview()
+  }
+}
+
+onMounted(() => {
+  window.addEventListener('keydown', handleKeydown)
+})
+
+onUnmounted(() => {
+  window.removeEventListener('keydown', handleKeydown)
+  if (previewUrl.value) {
+    URL.revokeObjectURL(previewUrl.value)
+  }
+})
+</script>
+
+<template>
+  <div v-if="viewerStore.model" class="floating-toolbar">
+    <!-- Render Mode Selector -->
+    <RenderModeSelector />
+
+    <div class="toolbar-divider"></div>
+
+    <!-- Edge Lines Toggle -->
+    <ToolbarButton
+      :active="edgesEnabled"
+      title="边缘线"
+      @click="toggleEdges"
+    >
+      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+        <path d="M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z"/>
+        <polyline points="3.27 6.96 12 12.01 20.73 6.96"/>
+        <line x1="12" y1="22.08" x2="12" y2="12"/>
+      </svg>
+    </ToolbarButton>
+
+    <!-- Auto Color Toggle -->
+    <ToolbarButton
+      :active="autoColorEnabled"
+      title="自动着色"
+      @click="toggleAutoColor"
+    >
+      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+        <rect x="3" y="3" width="7" height="7" rx="1"/>
+        <rect x="14" y="3" width="7" height="7" rx="1"/>
+        <rect x="14" y="14" width="7" height="7" rx="1"/>
+        <rect x="3" y="14" width="7" height="7" rx="1"/>
+      </svg>
+    </ToolbarButton>
+
+    <div class="toolbar-divider"></div>
+
+    <!-- Explode -->
+    <div class="toolbar-item">
+      <ToolbarButton
+        :active="isExploded"
+        :disabled="isExplodeAnimating"
+        title="爆炸图 (单击动画，右键设置)"
+        @click="handleExplodeClick"
+        @contextmenu.prevent="togglePopup('explode')"
+      >
+        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+          <path d="M12 2L8 6H4v4l-4 4 4 4v4h4l4 4 4-4h4v-4l4-4-4-4V6h-4L12 2z"/>
+          <circle cx="12" cy="12" r="3"/>
+        </svg>
+      </ToolbarButton>
+      <ExplodePopup
+        :show="activePopup === 'explode'"
+        @close="closePopup"
+      />
+    </div>
+
+    <!-- Cross Section -->
+    <div class="toolbar-item">
+      <ToolbarButton
+        :active="hasActiveCrossSection"
+        title="剖面"
+        @click="togglePopup('section')"
+      >
+        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+          <circle cx="12" cy="12" r="10"/>
+          <line x1="12" y1="2" x2="12" y2="22"/>
+        </svg>
+      </ToolbarButton>
+      <SectionPopup
+        :show="activePopup === 'section'"
+        @close="closePopup"
+      />
+    </div>
+
+    <div class="toolbar-divider"></div>
+
+    <!-- Render Settings -->
+    <div class="toolbar-item">
+      <ToolbarButton
+        title="渲染设置"
+        @click="togglePopup('render')"
+      >
+        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+          <circle cx="12" cy="12" r="3"/>
+          <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z"/>
+        </svg>
+      </ToolbarButton>
+      <RenderPopup
+        :show="activePopup === 'render'"
+        @close="closePopup"
+      />
+    </div>
+
+    <!-- Screenshot -->
+    <ToolbarButton
+      :disabled="isCapturing"
+      title="截图"
+      @click="captureScreenshot"
+    >
+      <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+        <path d="M23 19a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h4l2-3h6l2 3h4a2 2 0 0 1 2 2z"/>
+        <circle cx="12" cy="13" r="4"/>
+      </svg>
+    </ToolbarButton>
+  </div>
+
+  <!-- Screenshot Preview Modal -->
+  <Teleport to="body">
+    <div
+      v-if="showPreview"
+      class="preview-overlay"
+      @click="handleOverlayClick"
+    >
+      <div class="preview-modal">
+        <div class="preview-image-container">
+          <img
+            v-if="previewUrl"
+            :src="previewUrl"
+            alt="Screenshot preview"
+            class="preview-image"
+          />
+        </div>
+        <div class="preview-actions">
+          <button class="btn-download" @click="downloadScreenshot">
+            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="icon">
+              <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
+              <polyline points="7 10 12 15 17 10"/>
+              <line x1="12" y1="15" x2="12" y2="3"/>
+            </svg>
+            下载
+          </button>
+          <button class="btn-cancel" @click="closePreview">
+            取消
+          </button>
+        </div>
+      </div>
+    </div>
+  </Teleport>
+</template>
+
+<style scoped>
+.floating-toolbar {
+  position: absolute;
+  bottom: 20px;
+  left: 50%;
+  transform: translateX(-50%);
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  padding: 6px 10px;
+  background: var(--panel-overlay-bg);
+  backdrop-filter: blur(var(--panel-backdrop-blur));
+  -webkit-backdrop-filter: blur(var(--panel-backdrop-blur));
+  border-radius: var(--radius-xl);
+  border: 1px solid var(--border-color);
+  box-shadow: var(--shadow-lg);
+  z-index: 30;
+}
+
+.toolbar-divider {
+  width: 1px;
+  height: 24px;
+  background: var(--border-color);
+  margin: 0 4px;
+}
+
+.toolbar-item {
+  position: relative;
+}
+
+/* Screenshot Preview Styles */
+.preview-overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0, 0, 0, 0.75);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 9999;
+  backdrop-filter: blur(4px);
+  animation: fade-in 0.2s ease;
+}
+
+@keyframes fade-in {
+  from { opacity: 0; }
+  to { opacity: 1; }
+}
+
+.preview-modal {
+  background: var(--bg-primary);
+  border-radius: var(--radius-xl);
+  box-shadow: var(--shadow-xl);
+  max-width: 90vw;
+  max-height: 90vh;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  animation: scale-in 0.2s ease;
+}
+
+@keyframes scale-in {
+  from {
+    opacity: 0;
+    transform: scale(0.95);
+  }
+  to {
+    opacity: 1;
+    transform: scale(1);
+  }
+}
+
+.preview-image-container {
+  padding: var(--space-4);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: var(--bg-secondary);
+}
+
+.preview-image {
+  max-width: 100%;
+  max-height: 70vh;
+  object-fit: contain;
+  border-radius: var(--radius-md);
+  box-shadow: var(--shadow-lg);
+}
+
+.preview-actions {
+  display: flex;
+  gap: var(--space-3);
+  padding: var(--space-4);
+  justify-content: center;
+  border-top: 1px solid var(--border-color);
+}
+
+.btn-download,
+.btn-cancel {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 10px 20px;
+  font-size: 14px;
+  font-weight: 500;
+  border: none;
+  border-radius: var(--radius-md);
+  cursor: pointer;
+  transition: all 0.2s ease;
+}
+
+.btn-download {
+  background: var(--primary-color);
+  color: white;
+}
+
+.btn-download:hover {
+  background: var(--primary-hover);
+  transform: translateY(-1px);
+}
+
+.btn-download .icon {
+  width: 16px;
+  height: 16px;
+}
+
+.btn-cancel {
+  background: var(--bg-tertiary);
+  color: var(--text-secondary);
+  border: 1px solid var(--border-color);
+}
+
+.btn-cancel:hover {
+  background: var(--bg-sunken);
+  color: var(--text-primary);
+}
+</style>
diff --git a/frontend/src/components/viewer/toolbar/RenderModeSelector.vue b/frontend/src/components/viewer/toolbar/RenderModeSelector.vue
new file mode 100644
index 0000000..2eb0981
--- /dev/null
+++ b/frontend/src/components/viewer/toolbar/RenderModeSelector.vue
@@ -0,0 +1,64 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useViewerStore } from '@/stores/viewer'
+
+const viewerStore = useViewerStore()
+
+const renderMode = computed({
+  get: () => viewerStore.renderSettings.renderMode,
+  set: (value) => viewerStore.setRenderMode(value),
+})
+
+const modes = [
+  { value: 'standard', label: '实体', title: '标准实体渲染' },
+  { value: 'hiddenLine', label: '消隐', title: '消隐线模式' },
+  { value: 'wireframe', label: '线框', title: '线框模式' },
+] as const
+</script>
+
+<template>
+  <div class="render-mode-selector">
+    <button
+      v-for="mode in modes"
+      :key="mode.value"
+      class="mode-btn"
+      :class="{ active: renderMode === mode.value }"
+      :title="mode.title"
+      @click="renderMode = mode.value"
+    >
+      {{ mode.label }}
+    </button>
+  </div>
+</template>
+
+<style scoped>
+.render-mode-selector {
+  display: flex;
+  background: var(--bg-tertiary);
+  border-radius: var(--radius-md);
+  padding: 2px;
+}
+
+.mode-btn {
+  padding: 6px 10px;
+  font-size: 12px;
+  font-weight: 500;
+  border: none;
+  border-radius: calc(var(--radius-md) - 2px);
+  background: transparent;
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition: all var(--duration-fast) var(--ease-default);
+  white-space: nowrap;
+}
+
+.mode-btn:hover:not(.active) {
+  color: var(--text-primary);
+}
+
+.mode-btn.active {
+  background: var(--bg-primary);
+  color: var(--text-primary);
+  box-shadow: var(--shadow-sm);
+}
+</style>
diff --git a/frontend/src/components/viewer/toolbar/RenderPopup.vue b/frontend/src/components/viewer/toolbar/RenderPopup.vue
new file mode 100644
index 0000000..edbe6e0
--- /dev/null
+++ b/frontend/src/components/viewer/toolbar/RenderPopup.vue
@@ -0,0 +1,356 @@
+<script setup lang="ts">
+import { computed, watch, onUnmounted } from 'vue'
+import { useViewerStore } from '@/stores/viewer'
+import { getPartsTreeService, MaterialType } from '@/services/partsTreeService'
+import { getRenderService, resetRenderService, RenderMode } from '@/services/renderService'
+import ToolbarPopup from './ToolbarPopup.vue'
+
+defineProps<{
+  show: boolean
+}>()
+
+const emit = defineEmits<{
+  close: []
+}>()
+
+const viewerStore = useViewerStore()
+
+const renderMode = computed(() => viewerStore.renderSettings.renderMode)
+const isSpecialRenderMode = computed(() =>
+  renderMode.value === 'hiddenLine' || renderMode.value === 'wireframe'
+)
+
+const edgeLineWidth = computed({
+  get: () => viewerStore.renderSettings.edgeLineWidth,
+  set: (value) => viewerStore.setEdgeLineWidth(value),
+})
+
+const materialType = computed({
+  get: () => viewerStore.renderSettings.materialType,
+  set: (value) => viewerStore.setMaterialType(value),
+})
+
+const exposure = computed({
+  get: () => viewerStore.renderSettings.exposure,
+  set: (value) => viewerStore.setExposure(value),
+})
+
+const mainLightIntensity = computed({
+  get: () => viewerStore.renderSettings.mainLightIntensity,
+  set: (value) => viewerStore.setMainLightIntensity(value),
+})
+
+const ambientLightIntensity = computed({
+  get: () => viewerStore.renderSettings.ambientLightIntensity,
+  set: (value) => viewerStore.setAmbientLightIntensity(value),
+})
+
+// Initialize render service when scene is available
+watch(
+  () => viewerStore.scene,
+  (scene) => {
+    if (scene) {
+      const renderService = getRenderService()
+      renderService.initialize(scene, viewerStore.renderer)
+      if (viewerStore.renderSettings.edgesEnabled) {
+        renderService.setEdgesEnabled(true)
+      }
+    }
+  },
+  { immediate: true }
+)
+
+// Watch edge line width changes
+watch(
+  () => viewerStore.renderSettings.edgeLineWidth,
+  (width) => {
+    const renderService = getRenderService()
+    if (renderService.isInitialized()) {
+      renderService.setEdgeLineWidth(width)
+      viewerStore.forceRender()
+    }
+  }
+)
+
+// Watch material type changes
+watch(
+  () => viewerStore.renderSettings.materialType,
+  (type) => {
+    const service = getPartsTreeService()
+    const materialTypeMap: Record<string, MaterialType> = {
+      'clay': MaterialType.Clay,
+      'metal': MaterialType.Metal,
+      'paint': MaterialType.Paint,
+    }
+    service.setGlobalMaterial(materialTypeMap[type])
+    viewerStore.forceRender()
+  }
+)
+
+// Watch render mode changes
+watch(
+  () => viewerStore.renderSettings.renderMode,
+  (mode) => {
+    const renderService = getRenderService()
+    if (renderService.isInitialized()) {
+      const modeMap: Record<string, RenderMode> = {
+        'standard': RenderMode.Standard,
+        'hiddenLine': RenderMode.HiddenLine,
+        'wireframe': RenderMode.Wireframe,
+      }
+      renderService.setRenderMode(modeMap[mode])
+      viewerStore.forceRender()
+    }
+  }
+)
+
+// Watch exposure changes
+watch(
+  () => viewerStore.renderSettings.exposure,
+  (value) => {
+    const renderService = getRenderService()
+    if (renderService.isInitialized()) {
+      renderService.setToneMappingExposure(value)
+      viewerStore.forceRender()
+    }
+  }
+)
+
+// Watch main light intensity changes
+watch(
+  () => viewerStore.renderSettings.mainLightIntensity,
+  (value) => {
+    const renderService = getRenderService()
+    if (renderService.isInitialized()) {
+      renderService.setMainLightIntensity(value)
+      viewerStore.forceRender()
+    }
+  }
+)
+
+// Watch ambient light intensity changes
+watch(
+  () => viewerStore.renderSettings.ambientLightIntensity,
+  (value) => {
+    const renderService = getRenderService()
+    if (renderService.isInitialized()) {
+      renderService.setAmbientLightIntensity(value)
+      viewerStore.forceRender()
+    }
+  }
+)
+
+onUnmounted(() => {
+  resetRenderService()
+})
+
+const materialOptions = [
+  { value: 'clay', label: '白模', title: '白模材质 - 结构展示' },
+  { value: 'metal', label: '金属', title: '金属材质' },
+  { value: 'paint', label: '烤漆', title: '工业哑光烤漆' },
+] as const
+</script>
+
+<template>
+  <ToolbarPopup :show="show" title="渲染设置" @close="emit('close')">
+    <div class="render-content">
+      <!-- Material Type -->
+      <div class="setting-row" :class="{ disabled: isSpecialRenderMode }">
+        <span class="label">材质类型</span>
+        <div class="material-buttons">
+          <button
+            v-for="mat in materialOptions"
+            :key="mat.value"
+            class="material-btn"
+            :class="{ active: materialType === mat.value }"
+            :disabled="isSpecialRenderMode"
+            :title="mat.title"
+            @click="materialType = mat.value"
+          >
+            {{ mat.label }}
+          </button>
+        </div>
+      </div>
+
+      <!-- Edge Line Width -->
+      <div class="setting-row slider-row">
+        <span class="label">线宽</span>
+        <div class="slider-container">
+          <input
+            v-model.number="edgeLineWidth"
+            type="range"
+            min="0.5"
+            max="5"
+            step="0.5"
+            class="slider"
+          />
+          <span class="slider-value">{{ edgeLineWidth }}px</span>
+        </div>
+      </div>
+
+      <!-- Lighting Section -->
+      <div class="section-divider">
+        <span class="section-title">光照</span>
+      </div>
+
+      <div class="setting-row slider-row">
+        <span class="label">整体亮度</span>
+        <div class="slider-container">
+          <input
+            v-model.number="exposure"
+            type="range"
+            min="0.1"
+            max="3"
+            step="0.1"
+            class="slider"
+          />
+          <span class="slider-value">{{ exposure.toFixed(1) }}</span>
+        </div>
+      </div>
+
+      <div class="setting-row slider-row">
+        <span class="label">主光亮度</span>
+        <div class="slider-container">
+          <input
+            v-model.number="mainLightIntensity"
+            type="range"
+            min="0"
+            max="2"
+            step="0.1"
+            class="slider"
+          />
+          <span class="slider-value">{{ mainLightIntensity.toFixed(1) }}</span>
+        </div>
+      </div>
+
+      <div class="setting-row slider-row">
+        <span class="label">环境亮度</span>
+        <div class="slider-container">
+          <input
+            v-model.number="ambientLightIntensity"
+            type="range"
+            min="0"
+            max="2"
+            step="0.1"
+            class="slider"
+          />
+          <span class="slider-value">{{ ambientLightIntensity.toFixed(1) }}</span>
+        </div>
+      </div>
+    </div>
+  </ToolbarPopup>
+</template>
+
+<style scoped>
+.render-content {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-3);
+  min-width: 240px;
+}
+
+.setting-row {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-2);
+}
+
+.setting-row.disabled {
+  opacity: 0.5;
+  pointer-events: none;
+}
+
+.label {
+  font-size: 12px;
+  color: var(--text-secondary);
+}
+
+.material-buttons {
+  display: flex;
+  gap: 6px;
+}
+
+.material-btn {
+  flex: 1;
+  padding: 6px 8px;
+  font-size: 12px;
+  border: 1px solid var(--border-color);
+  border-radius: var(--radius-md);
+  background: var(--bg-secondary);
+  color: var(--text-primary);
+  cursor: pointer;
+  transition: all var(--duration-fast) var(--ease-default);
+}
+
+.material-btn:hover:not(:disabled) {
+  background: var(--bg-tertiary);
+  border-color: var(--primary-color);
+}
+
+.material-btn.active {
+  background: var(--primary-color);
+  border-color: var(--primary-color);
+  color: white;
+}
+
+.material-btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.slider-row {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-2);
+}
+
+.slider-container {
+  display: flex;
+  align-items: center;
+  gap: var(--space-3);
+}
+
+.slider {
+  flex: 1;
+  -webkit-appearance: none;
+  height: 4px;
+  border-radius: 2px;
+  background: var(--bg-tertiary);
+}
+
+.slider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--primary-color);
+  cursor: pointer;
+}
+
+.slider::-moz-range-thumb {
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--primary-color);
+  cursor: pointer;
+  border: none;
+}
+
+.slider-value {
+  min-width: 36px;
+  font-size: 12px;
+  color: var(--text-secondary);
+  text-align: right;
+}
+
+.section-divider {
+  padding-top: var(--space-2);
+  border-top: 1px solid var(--border-subtle);
+}
+
+.section-title {
+  font-size: 12px;
+  font-weight: 500;
+  color: var(--text-primary);
+}
+</style>
diff --git a/frontend/src/components/viewer/CrossSection.vue b/frontend/src/components/viewer/toolbar/SectionPopup.vue
similarity index 67%
rename from frontend/src/components/viewer/CrossSection.vue
rename to frontend/src/components/viewer/toolbar/SectionPopup.vue
index 1ea5783..dfc9adb 100644
--- a/frontend/src/components/viewer/CrossSection.vue
+++ b/frontend/src/components/viewer/toolbar/SectionPopup.vue
@@ -4,6 +4,15 @@ import { useViewerStore } from '@/stores/viewer'
 import { getClippingService, resetClippingService, type Axis } from '@/services/clippingService'
 import { getRenderService } from '@/services/renderService'
 import { getPartsTreeService } from '@/services/partsTreeService'
+import ToolbarPopup from './ToolbarPopup.vue'
+
+defineProps<{
+  show: boolean
+}>()
+
+const emit = defineEmits<{
+  close: []
+}>()
 
 const viewerStore = useViewerStore()
 const isInitialized = ref(false)
@@ -37,12 +46,8 @@ watch(
       }
     })
 
-    // Update edge line clipping planes
     getRenderService().updateEdgeClipping()
-
-    // Update selection overlay clipping planes
     getPartsTreeService().updateSelectionClipping()
-
     viewerStore.forceRender()
   },
   { deep: true }
@@ -81,12 +86,10 @@ function toggleSection() {
   const service = getClippingService()
   service.flipAllPlaneNormals()
   viewerStore.setCrossSectionFlipped(!viewerStore.crossSection.sectionFlipped)
-  // Update selection overlay clipping when planes flip
   getPartsTreeService().updateSelectionClipping()
   viewerStore.forceRender()
 }
 
-// Check if any plane is active
 const hasActivePlane = computed(() => {
   return (
     viewerStore.crossSection.x.enabled ||
@@ -103,30 +106,54 @@ const axisColors: Record<Axis, string> = {
 </script>
 
 <template>
-  <div class="feature-section">
-    <h4>剖面</h4>
-
-    <div class="controls-row">
+  <ToolbarPopup :show="show" title="剖面" @close="emit('close')">
+    <div class="section-content">
       <!-- Axis toggle buttons -->
-      <div class="axis-toggles">
-        <button
-          v-for="axis in ['x', 'y', 'z'] as Axis[]"
-          :key="axis"
-          class="axis-btn"
-          :class="[axis, { active: viewerStore.crossSection[axis].enabled }]"
-          :disabled="!isInitialized"
-          @click="toggleAxis(axis)"
-        >
+      <div class="axis-row">
+        <span class="label">切割轴</span>
+        <div class="axis-toggles">
+          <button
+            v-for="axis in ['x', 'y', 'z'] as Axis[]"
+            :key="axis"
+            class="axis-btn"
+            :class="[axis, { active: viewerStore.crossSection[axis].enabled }]"
+            :disabled="!isInitialized"
+            @click="toggleAxis(axis)"
+          >
+            {{ axis.toUpperCase() }}
+          </button>
+        </div>
+      </div>
+
+      <!-- Position sliders -->
+      <div
+        v-for="axis in ['x', 'y', 'z'] as Axis[]"
+        :key="`slider-${axis}`"
+        v-show="viewerStore.crossSection[axis].enabled"
+        class="slider-row"
+      >
+        <span class="axis-label" :style="{ color: axisColors[axis] }">
           {{ axis.toUpperCase() }}
-        </button>
+        </span>
+        <div class="slider-container">
+          <input
+            type="range"
+            class="slider"
+            min="0"
+            max="100"
+            :value="viewerStore.crossSection[axis].position"
+            @input="(e) => handlePositionChange(axis, e)"
+          />
+          <span class="slider-value">{{ viewerStore.crossSection[axis].position }}%</span>
+        </div>
       </div>
 
       <!-- Action buttons -->
-      <div class="action-toggles">
+      <div v-if="hasActivePlane" class="action-row">
         <button
           class="action-btn"
           :class="{ active: viewerStore.crossSection.planeVisible }"
-          :disabled="!isInitialized || !hasActivePlane"
+          :disabled="!isInitialized"
           @click="togglePlaneVisibility"
           title="显示/隐藏切割平面"
         >
@@ -140,56 +167,42 @@ const axisColors: Record<Axis, string> = {
               <path d="M12.454 16.697L9.75 13.992a4 4 0 01-3.742-3.741L2.335 6.578A9.98 9.98 0 00.458 10c1.274 4.057 5.065 7 9.542 7 .847 0 1.669-.105 2.454-.303z"/>
             </template>
           </svg>
+          <span>{{ viewerStore.crossSection.planeVisible ? '隐藏平面' : '显示平面' }}</span>
         </button>
         <button
-          class="action-btn flip-btn"
-          :class="{ active: viewerStore.crossSection.sectionFlipped }"
-          :disabled="!isInitialized || !hasActivePlane"
+          class="action-btn"
+          :class="{ active: viewerStore.crossSection.sectionFlipped, flip: true }"
+          :disabled="!isInitialized"
           @click="toggleSection"
           title="切换显示区域"
         >
           <svg viewBox="0 0 20 20" fill="currentColor" class="icon">
             <path fill-rule="evenodd" d="M4 2a1 1 0 011 1v2.101a7.002 7.002 0 0111.601 2.566 1 1 0 11-1.885.666A5.002 5.002 0 005.999 7H9a1 1 0 010 2H4a1 1 0 01-1-1V3a1 1 0 011-1zm.008 9.057a1 1 0 011.276.61A5.002 5.002 0 0014.001 13H11a1 1 0 110-2h5a1 1 0 011 1v5a1 1 0 11-2 0v-2.101a7.002 7.002 0 01-11.601-2.566 1 1 0 01.61-1.276z" clip-rule="evenodd"/>
           </svg>
+          <span>翻转</span>
         </button>
       </div>
     </div>
-
-    <!-- Position sliders -->
-    <div
-      v-for="axis in ['x', 'y', 'z'] as Axis[]"
-      :key="`slider-${axis}`"
-      v-show="viewerStore.crossSection[axis].enabled"
-      class="axis-slider"
-    >
-      <span class="axis-label" :style="{ color: axisColors[axis] }">
-        {{ axis.toUpperCase() }}
-      </span>
-      <div class="slider-container">
-        <input
-          type="range"
-          class="slider"
-          min="0"
-          max="100"
-          :value="viewerStore.crossSection[axis].position"
-          @input="(e) => handlePositionChange(axis, e)"
-        />
-        <span class="slider-value">{{ viewerStore.crossSection[axis].position }}%</span>
-      </div>
-    </div>
-
-    <p v-if="hasActivePlane && viewerStore.crossSection.sectionFlipped" class="hint">
-      已翻转显示区域
-    </p>
-  </div>
+  </ToolbarPopup>
 </template>
 
 <style scoped>
-.controls-row {
+.section-content {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-3);
+  min-width: 240px;
+}
+
+.axis-row {
   display: flex;
   align-items: center;
   justify-content: space-between;
-  gap: 8px;
+}
+
+.label {
+  font-size: 12px;
+  color: var(--text-secondary);
 }
 
 .axis-toggles {
@@ -197,36 +210,119 @@ const axisColors: Record<Axis, string> = {
   gap: 4px;
 }
 
-.action-toggles {
-  display: flex;
-  gap: 4px;
+.axis-btn {
+  width: 32px;
+  height: 28px;
+  font-size: 12px;
+  font-weight: 600;
+  border: 1px solid var(--border-color);
+  border-radius: var(--radius-sm);
+  background: var(--bg-secondary);
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition: all var(--duration-fast) var(--ease-default);
 }
 
-.axis-slider {
+.axis-btn:hover:not(:disabled) {
+  border-color: var(--primary-color);
+}
+
+.axis-btn.active.x {
+  background: #ef4444;
+  border-color: #ef4444;
+  color: white;
+}
+
+.axis-btn.active.y {
+  background: #22c55e;
+  border-color: #22c55e;
+  color: white;
+}
+
+.axis-btn.active.z {
+  background: #3b82f6;
+  border-color: #3b82f6;
+  color: white;
+}
+
+.axis-btn:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.slider-row {
   display: flex;
   align-items: center;
-  gap: 8px;
-  margin-top: 8px;
+  gap: var(--space-2);
 }
 
 .axis-label {
   font-weight: 600;
   font-size: 12px;
-  min-width: 20px;
+  min-width: 16px;
+}
+
+.slider-container {
+  flex: 1;
+  display: flex;
+  align-items: center;
+  gap: var(--space-2);
+}
+
+.slider {
+  flex: 1;
+  -webkit-appearance: none;
+  height: 4px;
+  border-radius: 2px;
+  background: var(--bg-tertiary);
+}
+
+.slider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--primary-color);
+  cursor: pointer;
+}
+
+.slider::-moz-range-thumb {
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--primary-color);
+  cursor: pointer;
+  border: none;
+}
+
+.slider-value {
+  min-width: 36px;
+  font-size: 12px;
+  color: var(--text-secondary);
+  text-align: right;
+}
+
+.action-row {
+  display: flex;
+  gap: var(--space-2);
+  padding-top: var(--space-2);
+  border-top: 1px solid var(--border-subtle);
 }
 
 .action-btn {
+  flex: 1;
   display: flex;
   align-items: center;
   justify-content: center;
-  width: 32px;
-  height: 32px;
+  gap: 6px;
+  padding: 6px 10px;
+  font-size: 12px;
   border: 1px solid var(--border-color);
-  border-radius: 6px;
+  border-radius: var(--radius-md);
   background: var(--bg-secondary);
-  color: var(--text-primary);
+  color: var(--text-secondary);
   cursor: pointer;
-  transition: all 0.15s ease;
+  transition: all var(--duration-fast) var(--ease-default);
 }
 
 .action-btn:hover:not(:disabled) {
@@ -240,77 +336,18 @@ const axisColors: Record<Axis, string> = {
   color: white;
 }
 
+.action-btn.flip.active {
+  background: #f59e0b;
+  border-color: #f59e0b;
+}
+
 .action-btn:disabled {
   opacity: 0.4;
   cursor: not-allowed;
 }
 
 .action-btn .icon {
-  width: 16px;
-  height: 16px;
-}
-
-.flip-btn.active {
-  background: #f59e0b;
-  border-color: #f59e0b;
-}
-
-.hint {
-  margin-top: 8px;
-  font-size: 11px;
-  color: var(--text-secondary);
-}
-
-.slider-container {
-  flex: 1;
-  display: flex;
-  align-items: center;
-  gap: 8px;
-}
-
-.slider {
-  flex: 1;
-  -webkit-appearance: none;
-  height: 4px;
-  border-radius: 2px;
-  background: var(--bg-tertiary);
-}
-
-.slider::-webkit-slider-runnable-track {
-  height: 4px;
-  border-radius: 2px;
-  background: var(--bg-tertiary);
-}
-
-.slider::-moz-range-track {
-  height: 4px;
-  border-radius: 2px;
-  background: var(--bg-tertiary);
-}
-
-.slider::-webkit-slider-thumb {
-  -webkit-appearance: none;
   width: 14px;
   height: 14px;
-  border-radius: 50%;
-  background: var(--primary-color);
-  cursor: pointer;
-  margin-top: -5px;
-}
-
-.slider::-moz-range-thumb {
-  width: 14px;
-  height: 14px;
-  border-radius: 50%;
-  background: var(--primary-color);
-  cursor: pointer;
-  border: none;
-}
-
-.slider-value {
-  min-width: 40px;
-  text-align: right;
-  font-size: 12px;
-  color: var(--text-secondary);
 }
 </style>
diff --git a/frontend/src/components/viewer/toolbar/ToolbarButton.vue b/frontend/src/components/viewer/toolbar/ToolbarButton.vue
new file mode 100644
index 0000000..8d962f0
--- /dev/null
+++ b/frontend/src/components/viewer/toolbar/ToolbarButton.vue
@@ -0,0 +1,59 @@
+<script setup lang="ts">
+defineProps<{
+  active?: boolean
+  disabled?: boolean
+  title?: string
+}>()
+
+const emit = defineEmits<{
+  click: []
+}>()
+</script>
+
+<template>
+  <button
+    class="toolbar-btn"
+    :class="{ active, disabled }"
+    :disabled="disabled"
+    :title="title"
+    @click="emit('click')"
+  >
+    <slot />
+  </button>
+</template>
+
+<style scoped>
+.toolbar-btn {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 36px;
+  height: 36px;
+  border: none;
+  border-radius: var(--radius-md);
+  background: transparent;
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition: all var(--duration-fast) var(--ease-default);
+}
+
+.toolbar-btn:hover:not(:disabled) {
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+}
+
+.toolbar-btn.active {
+  background: var(--primary-subtle);
+  color: var(--primary-color);
+}
+
+.toolbar-btn:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.toolbar-btn :deep(svg) {
+  width: 20px;
+  height: 20px;
+}
+</style>
diff --git a/frontend/src/components/viewer/toolbar/ToolbarPopup.vue b/frontend/src/components/viewer/toolbar/ToolbarPopup.vue
new file mode 100644
index 0000000..0f93a15
--- /dev/null
+++ b/frontend/src/components/viewer/toolbar/ToolbarPopup.vue
@@ -0,0 +1,136 @@
+<script setup lang="ts">
+import { ref, onMounted, onUnmounted } from 'vue'
+
+const props = defineProps<{
+  show: boolean
+  title?: string
+}>()
+
+const emit = defineEmits<{
+  close: []
+}>()
+
+const popupRef = ref<HTMLElement | null>(null)
+
+function handleClickOutside(event: MouseEvent) {
+  if (!props.show) return
+  const target = event.target as HTMLElement
+
+  // Check if click is outside popup
+  if (popupRef.value && !popupRef.value.contains(target)) {
+    // Check if click is on a toolbar button (parent will handle popup switching)
+    const toolbar = target.closest('.floating-toolbar')
+    const toolbarItem = target.closest('.toolbar-item')
+    const toolbarBtn = target.closest('.toolbar-btn')
+
+    // If clicking on toolbar controls, let parent handle it
+    if (toolbar && (toolbarItem || toolbarBtn)) {
+      return
+    }
+
+    emit('close')
+  }
+}
+
+onMounted(() => {
+  document.addEventListener('mousedown', handleClickOutside)
+})
+
+onUnmounted(() => {
+  document.removeEventListener('mousedown', handleClickOutside)
+})
+</script>
+
+<template>
+  <Transition name="popup">
+    <div v-if="show" ref="popupRef" class="toolbar-popup">
+      <div v-if="title" class="popup-header">
+        <span class="popup-title">{{ title }}</span>
+      </div>
+      <div class="popup-content">
+        <slot />
+      </div>
+      <div class="popup-arrow"></div>
+    </div>
+  </Transition>
+</template>
+
+<style scoped>
+.toolbar-popup {
+  position: absolute;
+  bottom: 100%;
+  left: 50%;
+  transform: translateX(-50%);
+  margin-bottom: 12px;
+  padding: var(--space-4);
+  background: var(--panel-overlay-bg);
+  backdrop-filter: blur(var(--panel-backdrop-blur));
+  -webkit-backdrop-filter: blur(var(--panel-backdrop-blur));
+  border-radius: var(--radius-xl);
+  border: 1px solid var(--border-color);
+  box-shadow: var(--shadow-xl);
+  min-width: 220px;
+  z-index: 40;
+}
+
+.popup-header {
+  margin-bottom: var(--space-3);
+  padding-bottom: var(--space-2);
+  border-bottom: 1px solid var(--border-subtle);
+}
+
+.popup-title {
+  font-size: 13px;
+  font-weight: 550;
+  color: var(--text-primary);
+}
+
+.popup-content {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-3);
+}
+
+.popup-arrow {
+  position: absolute;
+  bottom: -6px;
+  left: 50%;
+  transform: translateX(-50%) rotate(45deg);
+  width: 12px;
+  height: 12px;
+  background: var(--panel-overlay-bg);
+  border-right: 1px solid var(--border-color);
+  border-bottom: 1px solid var(--border-color);
+}
+
+/* Animation */
+.popup-enter-active {
+  animation: popup-enter var(--duration-fast) var(--ease-spring);
+}
+
+.popup-leave-active {
+  animation: popup-leave var(--duration-fast) var(--ease-default);
+}
+
+@keyframes popup-enter {
+  from {
+    opacity: 0;
+    transform: translateX(-50%) translateY(8px) scale(0.95);
+  }
+  to {
+    opacity: 1;
+    transform: translateX(-50%) translateY(0) scale(1);
+  }
+}
+
+@keyframes popup-leave {
+  from {
+    opacity: 1;
+    transform: translateX(-50%) translateY(0) scale(1);
+  }
+  to {
+    opacity: 0;
+    transform: translateX(-50%) translateY(8px) scale(0.95);
+  }
+}
+</style>