fix: remove logo from canvas chat panel greeting

app/canvas/[id]/page.tsx

@@ -369,7 +369,7 @@ export default function CanvasEditorPage({ params }: PageProps) {
         </div>
 
         {/* 2. Floating Header (Top Left) */}
-        <div className="absolute top-24 left-4 z-20 flex items-center gap-2 bg-background/80 backdrop-blur-md border rounded-xl p-1.5 shadow-sm">
+        <div className="absolute top-16 left-4 z-20 flex items-center gap-2 bg-background/80 backdrop-blur-md border rounded-xl p-1.5 shadow-sm">
            <Tooltip>
              <TooltipTrigger asChild>
                <Button variant="ghost" size="icon" onClick={() => router.push('/')} className="rounded-lg h-8 w-8">
@@ -436,34 +436,36 @@ export default function CanvasEditorPage({ params }: PageProps) {
         </div>
 
         {/* 3. Floating Actions (Top Right) */}
-        <div className="absolute top-24 right-4 z-20 flex items-center gap-2">
-           <div className="bg-background/80 backdrop-blur-md border rounded-xl p-1.5 shadow-sm flex items-center gap-1">
-              {/* Panel Toggle */}
-              <Tooltip>
-                <TooltipTrigger asChild>
-                  <Button
-                    variant="ghost"
-                    size="icon"
-                    onClick={() => setIsPanelOpen(!isPanelOpen)}
-                    className={cn("rounded-lg h-8 w-8", isPanelOpen && "bg-muted")}
-                  >
-                    {isPanelOpen ? <PanelRightClose className="h-4 w-4" /> : <PanelRight className="h-4 w-4" />}
-                  </Button>
-                </TooltipTrigger>
-                <TooltipContent>{isPanelOpen ? "隐藏面板" : "显示面板"}</TooltipContent>
-              </Tooltip>
-           </div>
-        </div>
+        {!isPanelOpen && (
+          <div className="absolute top-16 right-4 z-20 flex items-center gap-2">
+             <div className="bg-background/80 backdrop-blur-md border rounded-xl p-1.5 shadow-sm flex items-center gap-1">
+                {/* Panel Toggle */}
+                <Tooltip>
+                  <TooltipTrigger asChild>
+                    <Button
+                      variant="ghost"
+                      size="icon"
+                      onClick={() => setIsPanelOpen(!isPanelOpen)}
+                      className="rounded-lg h-8 w-8"
+                    >
+                      <PanelRight className="h-4 w-4" />
+                    </Button>
+                  </TooltipTrigger>
+                  <TooltipContent>显示面板</TooltipContent>
+                </Tooltip>
+             </div>
+          </div>
+        )}
 
         {/* 4. Floating Sidebar (Right) */}
         <div className={cn(
-            "absolute top-40 right-4 bottom-4 z-10 w-[400px] transition-all duration-300 ease-in-out",
+            "absolute top-16 right-4 bottom-4 z-10 w-[400px] transition-all duration-300 ease-in-out",
             isPanelOpen ? "translate-x-0 opacity-100" : "translate-x-[120%] opacity-0"
         )}>
             <div className="h-full w-full rounded-2xl border bg-background/95 backdrop-blur-md shadow-2xl overflow-hidden flex flex-col">
               <Tabs defaultValue="chat" className="flex flex-col h-full">
-                <div className="px-4 pt-4 pb-2 bg-muted/30 border-b">
-                  <TabsList className="grid w-full grid-cols-2">
+                <div className="px-4 pt-4 pb-2 bg-muted/30 border-b flex items-center justify-between">
+                  <TabsList className="grid w-[calc(100%-40px)] grid-cols-2">
                     <TabsTrigger value="chat" className="text-xs">
                       <MessageSquare className="h-3.5 w-3.5 mr-1.5" />
                       AI 对话
@@ -473,6 +475,21 @@ export default function CanvasEditorPage({ params }: PageProps) {
                       快捷工具
                     </TabsTrigger>
                   </TabsList>
+                  
+                  {/* Integrated Close Button */}
+                  <Tooltip>
+                    <TooltipTrigger asChild>
+                      <Button
+                        variant="ghost"
+                        size="icon"
+                        onClick={() => setIsPanelOpen(false)}
+                        className="h-8 w-8 rounded-lg hover:bg-background/50"
+                      >
+                        <PanelRightClose className="h-4 w-4" />
+                      </Button>
+                    </TooltipTrigger>
+                    <TooltipContent>隐藏面板</TooltipContent>
+                  </Tooltip>
                 </div>
                 
                 {/* AI 对话标签页 */}

components/canvas/CanvasChatPanel.tsx

@@ -27,24 +27,8 @@ interface CanvasChatPanelProps {
   initialMessages?: ChatMessage[];
 }
 
-// 建议卡片数据
-const SUGGESTIONS = [
-  {
-    title: "Wine List",
-    desc: "Mimic this effect to genera...",
-    image: "https://images.unsplash.com/photo-1510812431401-41d2bd2722f3?w=300&h=200&fit=crop"
-  },
-  {
-    title: "Coffee Shop Branding",
-    desc: "you are a brand design...",
-    image: "https://images.unsplash.com/photo-1509042239860-f550ce710b93?w=300&h=200&fit=crop"
-  },
-  {
-    title: "Story Board",
-    desc: "I NEED A STORY BOARD...",
-    image: "https://images.unsplash.com/photo-1626785774573-4b799314346d?w=300&h=200&fit=crop"
-  }
-];
+// 建议卡片数据 - 已移除
+const SUGGESTIONS: { title: string; desc: string; image: string }[] = [];
 
 // 从消息中提取图片 URL
 function extractImageUrls(text: string): string[] {
@@ -317,48 +301,15 @@ export function CanvasChatPanel({ chatId, initialMessages = [] }: CanvasChatPane
             <div className="flex flex-col h-full pt-4">
               {/* Greeting */}
               <div className="mb-8">
-                <div className="w-12 h-12 bg-black rounded-full flex items-center justify-center mb-4">
-                  <span className="text-white font-bold text-xl">-L°</span>
-                </div>
                 <h1 className="text-2xl font-bold mb-2">Hi, 我是你的AI设计师</h1>
                 <p className="text-muted-foreground">让我们开始今天的创作吧!</p>
               </div>
 
-              {/* Suggestions */}
-              <div className="space-y-3 mb-8">
-                {SUGGESTIONS.map((item, i) => (
-                  <div 
-                    key={i} 
-                    className="flex items-center justify-between p-3 bg-card rounded-xl border hover:shadow-md transition-all cursor-pointer group"
-                    onClick={() => setInput(prev => prev || item.desc)}
-                  >
-                    <div className="flex-1 min-w-0 mr-3">
-                      <h3 className="font-medium text-sm mb-1 group-hover:text-primary transition-colors">{item.title}</h3>
-                      <p className="text-xs text-muted-foreground truncate">{item.desc}</p>
-                    </div>
-                    <div className="w-16 h-12 rounded-lg overflow-hidden shrink-0">
-                      <img src={item.image} alt={item.title} className="w-full h-full object-cover" />
-                    </div>
-                  </div>
-                ))}
-              </div>
+              {/* Suggestions - Removed */}
+              
+              {/* Refresh - Removed */}
 
-              {/* Refresh */}
-              <div className="flex items-center gap-1 text-xs text-muted-foreground mb-4 cursor-pointer hover:text-foreground w-fit">
-                <RefreshCw className="h-3 w-3" />
-                <span>切换</span>
-              </div>
-
-              {/* Banner */}
-              <div className="bg-blue-50 dark:bg-blue-900/20 text-blue-600 dark:text-blue-300 p-3 rounded-xl text-sm flex items-center justify-between">
-                <div className="flex items-center gap-2">
-                  <div className="p-1 bg-blue-100 dark:bg-blue-800 rounded">
-                    <Box className="h-4 w-4" />
-                  </div>
-                  <span>升级会员, Nano Banana Pro 免费365天!</span>
-                </div>
-                <X className="h-4 w-4 cursor-pointer opacity-50 hover:opacity-100" />
-              </div>
+              {/* Banner - Removed */}
             </div>
           )}