diff --git a/src/components/call/CallWindow.vue b/src/components/call/CallWindow.vue
index a35c515..87577b7 100644
--- a/src/components/call/CallWindow.vue
+++ b/src/components/call/CallWindow.vue
@@ -66,12 +66,20 @@
       </div>
 
       <!-- B. 远程视频流 -->
+      <!--
+         关键修复：动态 class 切换 object-fit 模式
+         正常模式：object-cover (填满)
+         最小化模式：object-contain (完整显示)
+      -->
       <video
           ref="remoteVideoRef"
-          class="w-full h-full object-cover transition-opacity duration-500 absolute inset-0 z-0"
+          class="w-full h-full transition-opacity duration-500 absolute inset-0 z-0 bg-black"
+          :class="[
+            { 'opacity-0': call.type === 'audio' || call.status !== 'connected' || call.remoteCamOff },
+            call.minimized ? 'object-contain' : 'object-cover'
+          ]"
           autoplay
           playsinline
-          :class="{ 'opacity-0': call.type === 'audio' || call.status !== 'connected' || call.remoteCamOff }"
       ></video>
 
       <!-- C. 本地视频流 -->
@@ -306,17 +314,12 @@ const formatDuration = (seconds: number) => {
 }
 
 // --- 增强版视频流绑定 ---
-// 监听流变化 + 视频容器显隐状态
 watchEffect(() => {
   const stream = props.localStream
-  const isVisible = shouldShowLocalVideo.value // 依赖显隐状态
   const videoEl = localVideoRef.value
 
-  // 只有当元素存在、流存在，且（虽然v-show会自动控制display，但我们确保逻辑对齐）时才尝试绑定
   if (videoEl && stream) {
-    // 强制静音，防止浏览器策略阻止自动播放
     videoEl.muted = true
-
     if (videoEl.srcObject !== stream) {
       console.log('CallWindow: Binding local stream', stream.id)
       videoEl.srcObject = stream