diff --git a/components/canvas/CanvasChatPanel.tsx b/components/canvas/CanvasChatPanel.tsx
index 8177143bf..7fdceff7f 100644
--- a/components/canvas/CanvasChatPanel.tsx
+++ b/components/canvas/CanvasChatPanel.tsx
@@ -5,7 +5,7 @@ import { DefaultChatTransport } from "ai";
 import { useEffect, useRef, useState, useCallback, useMemo } from "react";
 import { createPortal } from "react-dom";
 import useSWR from "swr";
-import { Send, Loader2, ImagePlus, Paperclip, X, User, Bot, Plus, History, LayoutGrid, Maximize2, RefreshCw, Globe, Box, ArrowUp } from "lucide-react";
+import { Send, Loader2, ImagePlus, Paperclip, X, User, Bot, Plus, History, LayoutGrid, Maximize2, RefreshCw, Globe, Box, ArrowUp, Video } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { Textarea } from "@/components/ui/textarea";
 import { ScrollArea } from "@/components/ui/scroll-area";
@@ -1776,6 +1776,38 @@ export function CanvasChatPanel({ chatId, initialMessages = [], onClose, onOpenF
   const shouldShowImageLoading = hasGenerationStart && !hasGenerationEnd && !!currentModel;
   const loadingImageCount = imageParams.imageCount || 1;
 
+  const renderModelSelectContent = () => (
+    <SelectContent className="w-[238px] max-h-[340px] overflow-hidden rounded-[18px] border border-[#cfd4dc] bg-[#f3f4f6] p-1.5 shadow-[0_8px_20px_rgba(15,23,42,0.13)]">
+      <div className="max-h-[312px] space-y-0.5 overflow-y-auto pr-1">
+        {allModels.map((model) => (
+          <SelectItem
+            key={model.id}
+            value={model.id}
+            className="h-[34px] rounded-xl px-2.5 text-[#2f3640] [&>span:first-child]:hidden [&>span:last-child]:block [&>span:last-child]:w-full focus:bg-[#e7ebf0] focus:text-[#1f2937] data-[state=checked]:bg-[#e7ebf0] data-[state=checked]:text-[#1f2937]"
+          >
+            <span className="flex w-full items-center justify-between gap-2">
+              <span className="flex min-w-0 items-center gap-2">
+                <span className="h-5 w-5 overflow-hidden rounded-full border border-[#d4d9df] bg-white">
+                  {model.avatarUrl ? (
+                    <img src={model.avatarUrl} alt={model.displayName} className="h-full w-full object-cover" />
+                  ) : (
+                    <span className="flex h-full w-full items-center justify-center text-[9px] font-medium text-[#6b7280]">
+                      {model.id === "auto" ? "A" : model.displayName.slice(0, 1)}
+                    </span>
+                  )}
+                </span>
+                <span className="truncate text-[12px] font-medium leading-none">{model.displayName}</span>
+              </span>
+              {selectedModelId === model.id ? (
+                <span className="text-sm font-semibold text-[#1f2937]">✓</span>
+              ) : null}
+            </span>
+          </SelectItem>
+        ))}
+      </div>
+    </SelectContent>
+  );
+
   const createNewChatSession = useCallback(() => {
     const now = Date.now();
     const newChatSessionId = `canvas-${crypto.randomUUID()}`;
@@ -2259,8 +2291,6 @@ export function CanvasChatPanel({ chatId, initialMessages = [], onClose, onOpenF
           {/* Bottom Toolbar */}
           <div className="absolute left-2 bottom-2 right-2 flex items-center gap-2">
             <div className="flex min-w-0 flex-1 items-center gap-2 overflow-x-auto overscroll-x-contain touch-pan-x pr-1 [scrollbar-width:none] [-ms-overflow-style:none] [&::-webkit-scrollbar]:hidden">
-            {/* 左侧：附件和模型选择 */}
-            <div className="flex items-center gap-2 shrink-0">
               <input
                 ref={fileInputRef}
                 type="file"
@@ -2269,113 +2299,118 @@ export function CanvasChatPanel({ chatId, initialMessages = [], onClose, onOpenF
                 className="hidden"
                 onChange={handleFileSelect}
               />
-              <Button
-                variant="ghost"
-                size="icon"
-                className="h-8 w-8 rounded-full hover:bg-muted text-muted-foreground hover:text-foreground transition-colors flex-shrink-0"
-                onClick={() => fileInputRef.current?.click()}
-                disabled={isLoading}
-              >
-                <Paperclip className="h-4 w-4" />
-              </Button>
-              
-              {/* Agent Selector (Model) - 包含Agent模式选项 */}
-              <Select value={selectedModelId} onValueChange={setSelectedModelId}>
-                <SelectTrigger className={cn(
-                  "h-8 text-xs transition-colors rounded-full px-2 gap-1.5 w-auto flex-shrink-0",
-                  selectedModelId === "auto" 
-                    ? "bg-gradient-to-r from-purple-50 to-blue-50 text-purple-600 border-purple-100 hover:from-purple-100 hover:to-blue-100"
-                    : "bg-blue-50 text-blue-600 border-blue-100 hover:bg-blue-100 hover:border-blue-200"
-                )}>
-                  <span className="h-5 w-5 overflow-hidden rounded-full border border-blue-200 bg-white">
-                    {allModels.find((m) => m.id === selectedModelId)?.avatarUrl ? (
-                      <img
-                        src={allModels.find((m) => m.id === selectedModelId)?.avatarUrl || ""}
-                        alt={allModels.find((m) => m.id === selectedModelId)?.displayName || "模型头像"}
-                        className="h-full w-full object-cover"
-                      />
-                    ) : (
-                      <span className="flex h-full w-full items-center justify-center text-[10px] font-medium text-blue-500">
-                        {(allModels.find((m) => m.id === selectedModelId)?.displayName || "A").slice(0, 1)}
-                      </span>
-                    )}
-                  </span>
-                  <span className="truncate max-w-[66px]">
-                    {allModels.find(m => m.id === selectedModelId)?.displayName || "Agent模式"}
-                  </span>
-                </SelectTrigger>
-                <SelectContent className="w-[238px] max-h-[340px] overflow-hidden rounded-[18px] border border-[#cfd4dc] bg-[#f3f4f6] p-1.5 shadow-[0_8px_20px_rgba(15,23,42,0.13)]">
-                  <div className="max-h-[312px] space-y-0.5 overflow-y-auto pr-1">
-                    {allModels.map((model) => (
-                      <SelectItem
-                        key={model.id}
-                        value={model.id}
-                        className="h-[34px] rounded-xl px-2.5 text-[#2f3640] [&>span:first-child]:hidden [&>span:last-child]:block [&>span:last-child]:w-full focus:bg-[#e7ebf0] focus:text-[#1f2937] data-[state=checked]:bg-[#e7ebf0] data-[state=checked]:text-[#1f2937]"
-                      >
-                        <span className="flex w-full items-center justify-between gap-2">
-                          <span className="flex min-w-0 items-center gap-2">
-                            <span className="h-5 w-5 overflow-hidden rounded-full border border-[#d4d9df] bg-white">
-                              {model.avatarUrl ? (
-                                <img src={model.avatarUrl} alt={model.displayName} className="h-full w-full object-cover" />
-                              ) : (
-                                <span className="flex h-full w-full items-center justify-center text-[9px] font-medium text-[#6b7280]">
-                                  {model.id === "auto" ? "A" : model.displayName.slice(0, 1)}
-                                </span>
-                              )}
-                            </span>
-                            <span className="truncate text-[12px] font-medium leading-none">{model.displayName}</span>
-                          </span>
-                          {selectedModelId === model.id ? (
-                            <span className="text-sm font-semibold text-[#1f2937]">✓</span>
-                          ) : null}
-                        </span>
-                      </SelectItem>
-                    ))}
-                  </div>
-                </SelectContent>
-              </Select>
-            </div>
-
-            {/* 中间：图片参数（可收缩） */}
-            <div className="shrink-0">
               {isVideoModel ? (
-                <VideoParamsBar
-                  modelName={currentModel?.displayName}
-                  initialParams={videoParams || undefined}
-                  onParamsChange={handleVideoParamsChange}
-                  inline={true}
-                  providerType={currentModel?.providerType}
-                />
+                <>
+                  <Button
+                    type="button"
+                    variant="ghost"
+                    className="h-8 rounded-full border border-blue-500 bg-blue-50 px-3 text-blue-600 hover:bg-blue-100"
+                  >
+                    <Video className="mr-1 h-4 w-4" />
+                    <span className="text-sm font-medium">视频</span>
+                  </Button>
+                  <div className="shrink-0">
+                    <VideoParamsBar
+                      modelName={currentModel?.displayName}
+                      initialParams={videoParams || undefined}
+                      onParamsChange={handleVideoParamsChange}
+                      inline={true}
+                      providerType={currentModel?.providerType}
+                    />
+                  </div>
+                </>
               ) : (
-                <ImageParamsBar
-                  modelName={currentModel?.displayName}
-                  initialParams={imageParams}
-                  onParamsChange={handleImageParamsChange}
-                  inline={true}
-                  providerType={currentModel?.providerType}
-                />
+                <>
+                  <div className="flex items-center gap-2 shrink-0">
+                    <Button
+                      variant="ghost"
+                      size="icon"
+                      className="h-8 w-8 rounded-full hover:bg-muted text-muted-foreground hover:text-foreground transition-colors flex-shrink-0"
+                      onClick={() => fileInputRef.current?.click()}
+                      disabled={isLoading}
+                    >
+                      <Paperclip className="h-4 w-4" />
+                    </Button>
+                    <Select value={selectedModelId} onValueChange={setSelectedModelId}>
+                      <SelectTrigger className={cn(
+                        "h-8 text-xs transition-colors rounded-full px-2 gap-1.5 w-auto flex-shrink-0",
+                        selectedModelId === "auto"
+                          ? "bg-gradient-to-r from-purple-50 to-blue-50 text-purple-600 border-purple-100 hover:from-purple-100 hover:to-blue-100"
+                          : "bg-blue-50 text-blue-600 border-blue-100 hover:bg-blue-100 hover:border-blue-200"
+                      )}>
+                        <span className="h-5 w-5 overflow-hidden rounded-full border border-blue-200 bg-white">
+                          {allModels.find((m) => m.id === selectedModelId)?.avatarUrl ? (
+                            <img
+                              src={allModels.find((m) => m.id === selectedModelId)?.avatarUrl || ""}
+                              alt={allModels.find((m) => m.id === selectedModelId)?.displayName || "模型头像"}
+                              className="h-full w-full object-cover"
+                            />
+                          ) : (
+                            <span className="flex h-full w-full items-center justify-center text-[10px] font-medium text-blue-500">
+                              {(allModels.find((m) => m.id === selectedModelId)?.displayName || "A").slice(0, 1)}
+                            </span>
+                          )}
+                        </span>
+                        <span className="truncate max-w-[66px]">
+                          {allModels.find((m) => m.id === selectedModelId)?.displayName || "Agent模式"}
+                        </span>
+                      </SelectTrigger>
+                      {renderModelSelectContent()}
+                    </Select>
+                  </div>
+                  <div className="shrink-0">
+                    <ImageParamsBar
+                      modelName={currentModel?.displayName}
+                      initialParams={imageParams}
+                      onParamsChange={handleImageParamsChange}
+                      inline={true}
+                      providerType={currentModel?.providerType}
+                    />
+                  </div>
+                </>
               )}
             </div>
-            </div>
 
-            {/* 右侧：发送按钮（固定不收缩） */}
-            <Button
-              size="icon"
-              className={cn(
-                "h-8 w-8 rounded-full transition-all duration-200 flex-shrink-0",
-                input.trim() || attachments.length > 0 
-                  ? "bg-black text-white hover:bg-black/90 dark:bg-white dark:text-black dark:hover:bg-white/90" 
-                  : "bg-muted text-muted-foreground hover:bg-muted/80"
+            <div className="flex items-center gap-2 flex-shrink-0">
+              {isVideoModel && (
+                <Select value={selectedModelId} onValueChange={setSelectedModelId}>
+                  <SelectTrigger className="h-8 w-8 rounded-full border border-[#cfd4dc] bg-white p-0 justify-center [&>svg]:hidden">
+                    <span className="h-6 w-6 overflow-hidden rounded-full bg-white flex items-center justify-center">
+                      {allModels.find((m) => m.id === selectedModelId)?.avatarUrl ? (
+                        <img
+                          src={allModels.find((m) => m.id === selectedModelId)?.avatarUrl || ""}
+                          alt={allModels.find((m) => m.id === selectedModelId)?.displayName || "模型头像"}
+                          className="h-full w-full object-cover"
+                        />
+                      ) : (
+                        <span className="flex h-full w-full items-center justify-center text-[10px] font-medium text-[#4b5563]">
+                          {(allModels.find((m) => m.id === selectedModelId)?.displayName || "A").slice(0, 1)}
+                        </span>
+                      )}
+                    </span>
+                  </SelectTrigger>
+                  {renderModelSelectContent()}
+                </Select>
               )}
-              onClick={handleSend}
-              disabled={isLoading || (!input.trim() && attachments.length === 0)}
-            >
-              {isLoading ? (
-                <Loader2 className="h-4 w-4 animate-spin" />
-              ) : (
-                <ArrowUp className="h-4 w-4" />
-              )}
-            </Button>
+
+              <Button
+                size="icon"
+                className={cn(
+                  "h-8 w-8 rounded-full transition-all duration-200 flex-shrink-0",
+                  input.trim() || attachments.length > 0
+                    ? "bg-black text-white hover:bg-black/90 dark:bg-white dark:text-black dark:hover:bg-white/90"
+                    : "bg-muted text-muted-foreground hover:bg-muted/80"
+                )}
+                onClick={handleSend}
+                disabled={isLoading || (!input.trim() && attachments.length === 0)}
+              >
+                {isLoading ? (
+                  <Loader2 className="h-4 w-4 animate-spin" />
+                ) : (
+                  <ArrowUp className="h-4 w-4" />
+                )}
+              </Button>
+            </div>
           </div>
         </div>
       </div>