diff --git a/web/canvas-app/src/components/nodes/VideoConfigNode.vue b/web/canvas-app/src/components/nodes/VideoConfigNode.vue
index 82949a5..cec80ff 100644
--- a/web/canvas-app/src/components/nodes/VideoConfigNode.vue
+++ b/web/canvas-app/src/components/nodes/VideoConfigNode.vue
@@ -22,12 +22,12 @@
           class="text-sm font-medium bg-[var(--bg-tertiary)] text-[var(--text-secondary)] px-1 rounded outline-none border border-blue-500"
         />
         <div class="flex items-center gap-1">
-          <button @click="handleDuplicate" class="p-1 hover:bg-[var(--bg-tertiary)] rounded transition-colors" title="复制节点">
+          <button type="button" @pointerdown.stop @mousedown.stop @click.stop.prevent="handleDuplicate" class="nodrag nopan p-1 hover:bg-[var(--bg-tertiary)] rounded transition-colors" title="复制节点">
             <n-icon :size="14">
               <CopyOutline />
             </n-icon>
           </button>
-          <button @click="handleDelete" class="p-1 hover:bg-[var(--bg-tertiary)] rounded transition-colors" title="删除节点">
+          <button type="button" @pointerdown.stop @mousedown.stop @click.stop.prevent="handleDelete" class="nodrag nopan p-1 hover:bg-[var(--bg-tertiary)] rounded transition-colors" title="删除节点">
             <n-icon :size="14">
               <TrashOutline />
             </n-icon>
@@ -41,7 +41,7 @@
         <div class="flex items-center justify-between">
           <span class="text-xs text-[var(--text-secondary)]">模型</span>
           <n-dropdown trigger="click" :options="modelOptions" @select="handleModelSelect">
-            <button class="flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
+            <button type="button" @pointerdown.stop @mousedown.stop @click.stop class="nodrag nopan flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
               {{ displayModelName }}
               <n-icon :size="12"><ChevronDownOutline /></n-icon>
             </button>
@@ -52,7 +52,7 @@
         <div class="flex items-center justify-between">
           <span class="text-xs text-[var(--text-secondary)]">比例</span>
           <n-dropdown trigger="click" :options="ratioOptions" @select="handleRatioSelect">
-            <button class="flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
+            <button type="button" @pointerdown.stop @mousedown.stop @click.stop class="nodrag nopan flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
               {{ localRatio }}
               <n-icon :size="12">
                 <ChevronForwardOutline />
@@ -65,7 +65,7 @@
         <div class="flex items-center justify-between">
           <span class="text-xs text-[var(--text-secondary)]">时长</span>
           <n-dropdown trigger="click" :options="durationOptions" @select="handleDurationSelect">
-            <button class="flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
+            <button type="button" @pointerdown.stop @mousedown.stop @click.stop class="nodrag nopan flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
               {{ localDuration }}s
               <n-icon :size="12">
                 <ChevronForwardOutline />
@@ -78,7 +78,7 @@
         <div class="flex items-center justify-between">
           <span class="text-xs text-[var(--text-secondary)]">清晰度</span>
           <n-dropdown trigger="click" :options="resolutionOptions" @select="handleResolutionSelect">
-            <button class="flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
+            <button type="button" @pointerdown.stop @mousedown.stop @click.stop class="nodrag nopan flex items-center gap-1 text-sm text-[var(--text-primary)] hover:text-[var(--accent-color)]">
               {{ localResolution }}
               <n-icon :size="12">
                 <ChevronForwardOutline />
@@ -118,8 +118,8 @@
       </div> -->
 
         <!-- Generate button | 生成按钮 -->
-        <button @click="handleGenerate" :disabled="isGenerating || !canGenerate"
-          class="w-full flex items-center justify-center gap-2 py-2 px-4 rounded-lg bg-[var(--accent-color)] hover:bg-[var(--accent-hover)] text-white text-sm font-medium transition-colors disabled:opacity-50 disabled:cursor-not-allowed">
+        <button type="button" @pointerdown.stop @mousedown.stop @touchstart.stop @click.stop.prevent="handleGenerate" :disabled="isGenerating || !canGenerate"
+          class="nodrag nopan w-full flex items-center justify-center gap-2 py-2 px-4 rounded-lg bg-[var(--accent-color)] hover:bg-[var(--accent-hover)] text-white text-sm font-medium transition-colors disabled:opacity-50 disabled:cursor-not-allowed">
           <n-spin v-if="isGenerating" :size="14" />
           <template v-else>
             <n-icon :size="16">