diff --git a/webui/src/components/Animation.vue b/webui/src/components/Animation.vue
index 7064fdd..eabf0dc 100644
--- a/webui/src/components/Animation.vue
+++ b/webui/src/components/Animation.vue
@@ -1,27 +1,24 @@
 <template>
   <q-card class="shadow-2">
-    <q-card-section class="bg-indigo-50">
+    <q-card-section class="bg-indigo-50 cursor-pointer" @click="toggleExpand">
       <div class="text-h6 text-indigo-900 flex items-center gap-2">
         <q-icon name="animation" />
         EGM 动画可视化
         <q-space />
-        <q-toggle
-          v-model="enabled"
-          label="启用动画"
-          color="primary"
-          @update:model-value="onEnableChange"
-        />
+        <q-icon :name="expanded ? 'expand_less' : 'expand_more'" />
       </div>
     </q-card-section>
 
-    <q-card-section>
-      <canvas
-        ref="canvasRef"
-        :width="canvasWidth"
-        :height="canvasHeight"
-        class="animation-canvas"
-      />
-    </q-card-section>
+    <q-slide-transition>
+      <q-card-section v-show="expanded">
+        <canvas
+          ref="canvasRef"
+          :width="canvasWidth"
+          :height="canvasHeight"
+          class="animation-canvas"
+        />
+      </q-card-section>
+    </q-slide-transition>
   </q-card>
 </template>
 
@@ -40,12 +37,26 @@ const coordRange = {
   yMax: 500
 }
 
-// 启用/禁用动画
-const enabled = ref(false)
+// 展开/折叠状态
+const expanded = ref(false)
 const canvasRef = ref<HTMLCanvasElement | null>(null)
 let ctx: CanvasRenderingContext2D | null = null
 let tick = 0
 
+// 切换展开/折叠
+const toggleExpand = () => {
+  expanded.value = !expanded.value
+  if (expanded.value) {
+    // 展开时初始化画布
+    setTimeout(() => {
+      if (canvasRef.value) {
+        ctx = canvasRef.value.getContext('2d')
+        initFig()
+      }
+    }, 350) // 等待动画完成
+  }
+}
+
 // 坐标转换：数据坐标 -> Canvas 坐标
 const toCanvasX = (x: number): number => {
   return ((x - coordRange.xMin) / (coordRange.xMax - coordRange.xMin)) * canvasWidth
@@ -58,7 +69,7 @@ const toCanvasY = (y: number): number => {
 
 // 初始化画布
 const initFig = () => {
-  if (!ctx || !enabled.value) return
+  if (!ctx || !expanded.value) return
 
   ctx.fillStyle = '#ffffff'
   ctx.fillRect(0, 0, canvasWidth, canvasHeight)
@@ -108,7 +119,7 @@ const clear = () => {
 
 // 添加 RG 线（地面线）
 const addRgLine = (points: [number, number][]) => {
-  if (!ctx || !enabled.value || !points || points.length === 0) return
+  if (!ctx || !expanded.value || !points || points.length === 0) return
 
   ctx.strokeStyle = '#2196F3'
   ctx.lineWidth = 2
@@ -128,7 +139,7 @@ const addRgLine = (points: [number, number][]) => {
 
 // 添加 RS 圆（地线保护弧）- 这是每帧第一个绘制的元素，先清除画布
 const addRs = (rs: number, rsX: number, rsY: number) => {
-  if (!ctx || !enabled.value) return
+  if (!ctx || !expanded.value) return
 
   // 清除并重新初始化画布，准备绘制新的一帧
   clear()
@@ -147,7 +158,7 @@ const addRs = (rs: number, rsX: number, rsY: number) => {
 
 // 添加 RC 圆（导线暴露弧）
 const addRc = (rc: number, rcX: number, rcY: number) => {
-  if (!ctx || !enabled.value) return
+  if (!ctx || !expanded.value) return
 
   const canvasX = toCanvasX(rcX)
   const canvasY = toCanvasY(rcY)
@@ -169,7 +180,7 @@ const addExposeArea = (
   intersectionX2: number,
   intersectionY2: number
 ) => {
-  if (!ctx || !enabled.value) return
+  if (!ctx || !expanded.value) return
 
   ctx.strokeStyle = '#F44336'
   ctx.lineWidth = 3
@@ -189,29 +200,23 @@ const addExposeArea = (
 
 // 暂停并刷新 - 用于下一帧绘制前清除
 const pause = () => {
-  if (!ctx || !enabled.value) return
+  if (!ctx || !expanded.value) return
 
   tick += 1
   // 不立即清除，等待下一次绑图时清除
   // 这样用户可以看到当前帧
 }
 
-// 启用状态改变
-const onEnableChange = (value: boolean) => {
-  if (value) {
-    initFig()
-  } else {
-    clear()
-  }
-}
-
 // 暴露方法给父组件或全局调用
 const animationApi = {
   enable: (enable: boolean) => {
-    enabled.value = enable
-    onEnableChange(enable)
+    expanded.value = enable
+    if (enable && canvasRef.value) {
+      ctx = canvasRef.value.getContext('2d')
+      initFig()
+    }
   },
-  isEnabled: () => enabled.value,
+  isEnabled: () => expanded.value,
   initFig,
   clear,
   addRgLine,
@@ -229,13 +234,6 @@ declare global {
 }
 
 onMounted(() => {
-  if (canvasRef.value) {
-    ctx = canvasRef.value.getContext('2d')
-    if (enabled.value) {
-      initFig()
-    }
-  }
-
   // 注册全局 API
   window.animationApi = animationApi
 })