diff --git a/frontend-web/src/core/studio/api.ts b/frontend-web/src/core/studio/api.ts
index c8f6329c..ac492de8 100644
--- a/frontend-web/src/core/studio/api.ts
+++ b/frontend-web/src/core/studio/api.ts
@@ -49,6 +49,43 @@ export async function createSearchSpace(
   if (!res.ok) throw new Error(`创建失败：${res.status}`);
 }
 
+export async function uploadSourceText(
+  notebookId: number,
+  content: string,
+  title: string,
+  token: string,
+): Promise<void> {
+  const apiBase = base();
+  if (!apiBase) throw new Error("VITE_AIPI_FRONTEND_URL 未配置");
+  const res = await fetch(`${apiBase}/api/v1/documents/textupload`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json", Authorization: `Bearer ${token}` },
+    body: JSON.stringify({ search_space_id: notebookId, content, title: title || "粘贴的文字" }),
+  });
+  if (!res.ok) throw new Error(`上传失败：${res.status}`);
+}
+
+export async function deleteSearchSpace(id: number, token: string): Promise<void> {
+  const apiBase = base();
+  if (!apiBase) throw new Error("VITE_AIPI_FRONTEND_URL 未配置");
+  const res = await fetch(`${apiBase}/api/v1/searchspaces/${id}`, {
+    method: "DELETE",
+    headers: { Authorization: `Bearer ${token}` },
+  });
+  if (!res.ok) throw new Error(`删除失败：${res.status}`);
+}
+
+export async function renameSearchSpace(id: number, name: string, token: string): Promise<void> {
+  const apiBase = base();
+  if (!apiBase) throw new Error("VITE_AIPI_FRONTEND_URL 未配置");
+  const res = await fetch(`${apiBase}/api/v1/searchspaces/${id}`, {
+    method: "PATCH",
+    headers: { "Content-Type": "application/json", Authorization: `Bearer ${token}` },
+    body: JSON.stringify({ name }),
+  });
+  if (!res.ok) throw new Error(`重命名失败：${res.status}`);
+}
+
 export interface ChunkRead {
   id: number;
   content: string;
diff --git a/frontend-web/src/pages/StudioNotebookDetailPage.tsx b/frontend-web/src/pages/StudioNotebookDetailPage.tsx
index b711390a..57ff6d8f 100644
--- a/frontend-web/src/pages/StudioNotebookDetailPage.tsx
+++ b/frontend-web/src/pages/StudioNotebookDetailPage.tsx
@@ -10,7 +10,6 @@ import {
   Globe,
   Loader2,
   Plus,
-  Send,
   X,
 } from "lucide-react";
 
@@ -23,7 +22,7 @@ import {
   DialogTitle,
 } from "@/components/ui/dialog";
 import { useNotebookChat, useNotebookSources, useNotebookThreads, useStudioNotebooks } from "@/core/studio/hooks";
-import { fetchDocumentByChunk, uploadSourceFiles } from "@/core/studio/api";
+import { fetchDocumentByChunk, uploadSourceFiles, uploadSourceText } from "@/core/studio/api";
 import type { DocumentWithChunks } from "@/core/studio/api";
 import type { SourceItem } from "@/core/studio/types";
 import { getStoredAuth } from "@/core/auth";
@@ -132,6 +131,11 @@ function SourcesDialog({
   const fileInputRef = useRef<HTMLInputElement>(null);
   const [uploading, setUploading] = useState(false);
   const [uploadError, setUploadError] = useState("");
+  const [panel, setPanel] = useState<"sources" | "text">("sources");
+  const [textContent, setTextContent] = useState("");
+  const [textTitle, setTextTitle] = useState("");
+  const [submittingText, setSubmittingText] = useState(false);
+  const [textError, setTextError] = useState("");
 
   const handleFileChange = async (e: React.ChangeEvent<HTMLInputElement>) => {
     const files = Array.from(e.target.files ?? []);
@@ -149,6 +153,23 @@ function SourcesDialog({
     }
   };
 
+  const handleTextSubmit = async () => {
+    if (!textContent.trim()) return;
+    setSubmittingText(true);
+    setTextError("");
+    try {
+      await uploadSourceText(notebookId, textContent.trim(), textTitle.trim(), token);
+      setTextContent("");
+      setTextTitle("");
+      setPanel("sources");
+      onUploadSuccess();
+    } catch (err) {
+      setTextError(err instanceof Error ? err.message : "上传失败");
+    } finally {
+      setSubmittingText(false);
+    }
+  };
+
   return (
     <Dialog open={open} onOpenChange={(v) => !v && onClose()}>
       <DialogContent
@@ -171,6 +192,7 @@ function SourcesDialog({
         </DialogHeader>
 
         <div className="flex min-h-0 flex-1 overflow-hidden">
+          {/* 左侧导航 */}
           <div className="flex w-44 shrink-0 flex-col gap-1 border-r border-border p-3">
             <input
               ref={fileInputRef}
@@ -182,14 +204,15 @@ function SourcesDialog({
             />
             <button
               disabled={uploading}
-              onClick={() => fileInputRef.current?.click()}
+              onClick={() => { setPanel("sources"); fileInputRef.current?.click(); }}
               className="flex items-center gap-2.5 rounded-xl px-3 py-2.5 text-sm text-muted-foreground transition-colors hover:bg-muted hover:text-foreground disabled:opacity-50"
             >
               {uploading ? <Loader2 className="size-4 shrink-0 animate-spin" /> : <Plus className="size-4 shrink-0" />}
               <span className="text-left leading-tight">上传文件</span>
             </button>
             <button
-              className="flex items-center gap-2.5 rounded-xl px-3 py-2.5 text-sm text-muted-foreground transition-colors hover:bg-muted hover:text-foreground"
+              onClick={() => { setPanel("text"); setTextError(""); }}
+              className={`flex items-center gap-2.5 rounded-xl px-3 py-2.5 text-sm transition-colors hover:bg-muted hover:text-foreground ${panel === "text" ? "bg-muted text-foreground" : "text-muted-foreground"}`}
             >
               <AlignLeft className="size-4 shrink-0" />
               <span className="text-left leading-tight">复制的文字</span>
@@ -199,23 +222,59 @@ function SourcesDialog({
             )}
           </div>
 
-          <div className="flex-1 overflow-y-auto p-4">
-            <div className="grid grid-cols-4 gap-3">
-              {isLoadingSources
-                ? Array.from({ length: 8 }).map((_, i) => <SourceCardSkeleton key={i} />)
-                : sources.map((src) => (
-                    <SourceCard
-                      key={src.id}
-                      item={src}
-                      selected={selectedSourceIds.includes(src.id)}
-                      onToggle={onToggle}
-                    />
-                  ))}
+          {/* 右侧内容 */}
+          {panel === "sources" ? (
+            <div className="flex-1 overflow-y-auto p-4">
+              <div className="grid grid-cols-4 gap-3">
+                {isLoadingSources
+                  ? Array.from({ length: 8 }).map((_, i) => <SourceCardSkeleton key={i} />)
+                  : sources.map((src) => (
+                      <SourceCard
+                        key={src.id}
+                        item={src}
+                        selected={selectedSourceIds.includes(src.id)}
+                        onToggle={onToggle}
+                      />
+                    ))}
+              </div>
+              {!isLoadingSources && sources.length === 0 && (
+                <p className="text-sm text-muted-foreground">暂无来源，请添加文件。</p>
+              )}
             </div>
-            {!isLoadingSources && sources.length === 0 && (
-              <p className="text-sm text-muted-foreground">暂无来源，请添加文件。</p>
-            )}
-          </div>
+          ) : (
+            <div className="flex flex-1 flex-col gap-3 p-5">
+              <input
+                autoFocus
+                value={textTitle}
+                onChange={(e) => setTextTitle(e.target.value)}
+                placeholder="标题（可选）"
+                className="w-full rounded-lg border border-border bg-background px-3 py-2 text-sm outline-none focus:ring-2 focus:ring-primary"
+              />
+              <textarea
+                value={textContent}
+                onChange={(e) => setTextContent(e.target.value)}
+                placeholder="在此粘贴或输入文字内容…"
+                className="flex-1 resize-none rounded-lg border border-border bg-background px-3 py-2 text-sm outline-none focus:ring-2 focus:ring-primary"
+              />
+              {textError && <p className="text-xs text-destructive">{textError}</p>}
+              <div className="flex justify-end gap-2">
+                <button
+                  onClick={() => setPanel("sources")}
+                  className="rounded-lg border border-border px-4 py-2 text-sm text-muted-foreground hover:bg-muted"
+                >
+                  取消
+                </button>
+                <button
+                  disabled={!textContent.trim() || submittingText}
+                  onClick={() => void handleTextSubmit()}
+                  className="flex items-center gap-2 rounded-lg bg-primary px-4 py-2 text-sm font-medium text-primary-foreground hover:bg-primary/90 disabled:opacity-50"
+                >
+                  {submittingText && <Loader2 className="size-3.5 animate-spin" />}
+                  添加来源
+                </button>
+              </div>
+            </div>
+          )}
         </div>
       </DialogContent>
     </Dialog>
@@ -236,6 +295,8 @@ export default function StudioNotebookDetailPage() {
   // null = 显示历史线程列表；string = 显示该线程的聊天
   const [activeThreadId, setActiveThreadId] = useState<string | null>(null);
   const [citationChunkId, setCitationChunkId] = useState<number | null>(null);
+  const [threadsExpanded, setThreadsExpanded] = useState(false);
+  const THREADS_LIMIT = 5;
   const [citationDoc, setCitationDoc] = useState<DocumentWithChunks | null>(null);
   const [citationLoading, setCitationLoading] = useState(false);
 
@@ -326,7 +387,7 @@ export default function StudioNotebookDetailPage() {
           className="pointer-events-none absolute inset-0"
           style={{
             background:
-              "radial-gradient(ellipse 60% 50% at 50% 60%, hsl(var(--primary) / 0.12) 0%, transparent 70%)",
+              "linear-gradient(145deg, hsl(var(--primary) / 0.22) 0%, hsl(var(--primary) / 0.10) 45%, transparent 80%)",
           }}
         />
       )}
@@ -373,73 +434,133 @@ export default function StudioNotebookDetailPage() {
 
       {/* 列表视图：笔记本标题 + 历史线程列表 */}
       {!isChatView && (
-        <div className="relative z-10 flex flex-1 flex-col items-center px-8 py-10 overflow-y-auto">
+        <div className="relative z-10 flex flex-1 flex-col overflow-hidden">
           {/* 右上角跳转按钮 */}
           <a
             href={`${import.meta.env.VITE_AIPI_FRONTEND_URL}/auth/callback?token=${studioToken ?? ""}&redirect=/dashboard/${notebookId}/new-chat`}
             target="_blank"
             rel="noreferrer"
-            className="absolute right-6 top-4 flex items-center gap-1.5 rounded-full bg-muted px-3 py-1.5 text-xs text-muted-foreground transition-colors hover:bg-muted/70"
+            className="absolute right-6 top-4 z-10 flex items-center gap-1.5 rounded-full bg-muted/70 px-3 py-1.5 text-xs text-muted-foreground backdrop-blur transition-colors hover:bg-muted"
           >
             <BookOpen className="size-3.5" />
             <span>我的笔记</span>
           </a>
-          <div className="flex size-16 items-center justify-center rounded-2xl bg-muted text-4xl">
-            {notebook.avatar_url ? (
-              <img src={notebook.avatar_url} alt="" className="size-10 rounded-xl object-contain" />
-            ) : (
-              <Files className="size-8 text-muted-foreground" />
+
+          {/* 垂直居中主区域：图标 → 标题 → 来源 → 输入框 → 空状态/历史 */}
+          <div className="flex flex-1 flex-col items-center justify-center overflow-y-auto px-8 pb-12 pt-16">
+            <div className="flex size-14 items-center justify-center leading-none select-none">
+              {notebook.avatar_url ? (
+                <img src={notebook.avatar_url} alt="" className="size-12 rounded-xl object-contain" />
+              ) : (
+                <Files className="size-10 text-foreground/50" />
+              )}
+            </div>
+            <h1 className="mt-5 max-w-xl text-center text-3xl font-normal leading-snug text-foreground">
+              {notebook.name}
+            </h1>
+            <button
+              onClick={() => setSourcesOpen(true)}
+              className="mt-4 flex cursor-pointer items-center gap-2 rounded-full bg-muted/70 px-4 py-2 text-sm font-medium text-muted-foreground backdrop-blur transition-colors hover:bg-muted"
+            >
+              <Files className="size-3.5" />
+              <span>{notebook.source_count} 个来源</span>
+            </button>
+
+            {/* 输入框（列表视图内联） */}
+            <form
+              onSubmit={(e) => { void handleSend(e); }}
+              className="relative z-10 mt-8 flex w-full max-w-[680px] items-center gap-3 rounded-full bg-card px-5 py-3.5 shadow-md ring-1 ring-border"
+            >
+              <button
+                type="button"
+                onClick={() => setSourcesOpen(true)}
+                className="shrink-0 text-muted-foreground hover:text-foreground"
+              >
+                <Plus className="size-5" />
+              </button>
+              <input
+                value={input}
+                onChange={(e) => setInput(e.target.value)}
+                placeholder="问问 AI..."
+                disabled={isStreaming}
+                className="flex-1 bg-transparent text-[15px] text-foreground placeholder:text-muted-foreground outline-none disabled:opacity-50"
+              />
+              {isStreaming && <Loader2 className="size-4 shrink-0 animate-spin text-muted-foreground" />}
+              {models.length > 0 && (
+                <Select value={selectedModel} onValueChange={setSelectedModel}>
+                  <SelectTrigger className="h-7 w-auto shrink-0 gap-1 rounded-full border-0 bg-transparent px-2 text-sm text-muted-foreground shadow-none focus:ring-0 hover:bg-muted/60">
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    {models.map((m) => (
+                      <SelectItem key={m.name} value={m.name} className="text-xs">
+                        {m.display_name || m.name}
+                      </SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
+              )}
+            </form>
+
+            {/* 空状态提示 */}
+            {(!notebookThreads || notebookThreads.length === 0) && (
+              <div className="mt-8 flex items-center gap-2 text-sm text-foreground/40">
+                <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round">
+                  <path d="M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z"/>
+                </svg>
+                笔记本对话会显示在这里
+              </div>
+            )}
+
+            {/* 历史线程列表 */}
+            {notebookThreads && notebookThreads.length > 0 && (
+              <div className="mt-8 w-full max-w-[680px] flex flex-col gap-2">
+                <p className="mb-1 text-xs font-medium text-foreground/40">历史对话</p>
+                <div className="flex flex-col gap-2 overflow-y-auto" style={{ maxHeight: "260px" }}>
+                {(threadsExpanded ? notebookThreads : notebookThreads.slice(0, THREADS_LIMIT)).map((t) => {
+                  const values = t.values as Record<string, unknown> | undefined;
+                  const msgs = values?.messages as Array<{ type: string; content: unknown }> | undefined;
+                  const firstHuman = msgs?.find((m) => m.type === "human");
+                  const rawContent = firstHuman?.content;
+                  const preview =
+                    typeof rawContent === "string"
+                      ? rawContent.slice(0, 60)
+                      : Array.isArray(rawContent)
+                        ? String((rawContent[0] as { text?: string })?.text ?? "").slice(0, 60)
+                        : "对话";
+                  const title = (values?.title as string | undefined) || preview || "对话";
+                  const time = new Date(t.updated_at ?? "").toLocaleString("zh-CN", {
+                    month: "numeric",
+                    day: "numeric",
+                    hour: "2-digit",
+                    minute: "2-digit",
+                  });
+                  return (
+                    <button
+                      key={t.thread_id}
+                      onClick={() => {
+                        setActiveThreadId(t.thread_id);
+                        setThreadId(t.thread_id);
+                      }}
+                      className="flex items-center justify-between rounded-xl bg-muted/50 px-4 py-3 text-left transition-colors hover:bg-muted"
+                    >
+                      <span className="truncate text-sm font-medium text-foreground">{title}</span>
+                      <span className="ml-4 shrink-0 text-xs text-foreground/50">{time}</span>
+                    </button>
+                  );
+                })}
+                </div>
+                {notebookThreads.length > THREADS_LIMIT && (
+                  <button
+                    onClick={() => setThreadsExpanded((v) => !v)}
+                    className="mt-1 text-xs text-muted-foreground hover:text-foreground transition-colors"
+                  >
+                    {threadsExpanded ? "收起" : `查看全部 ${notebookThreads.length} 条对话`}
+                  </button>
+                )}
+              </div>
             )}
           </div>
-          <h1 className="mt-4 max-w-xl text-2xl font-semibold leading-snug text-foreground text-center">
-            {notebook.name}
-          </h1>
-          <button
-            onClick={() => setSourcesOpen(true)}
-            className="mt-3 flex cursor-pointer items-center gap-2 rounded-full bg-muted px-4 py-1.5 text-sm text-muted-foreground transition-colors hover:bg-muted/70"
-          >
-            <Files className="size-3.5" />
-            <span>{notebook.source_count} 个来源</span>
-          </button>
-
-          {/* 历史线程列表 */}
-          {notebookThreads && notebookThreads.length > 0 && (
-            <div className="mt-8 w-full max-w-lg flex flex-col gap-2">
-              <p className="mb-1 text-xs font-medium text-muted-foreground">历史对话</p>
-              {notebookThreads.map((t) => {
-                const values = t.values as Record<string, unknown> | undefined;
-                const msgs = values?.messages as Array<{ type: string; content: unknown }> | undefined;
-                const firstHuman = msgs?.find((m) => m.type === "human");
-                const rawContent = firstHuman?.content;
-                const preview =
-                  typeof rawContent === "string"
-                    ? rawContent.slice(0, 60)
-                    : Array.isArray(rawContent)
-                      ? String((rawContent[0] as { text?: string })?.text ?? "").slice(0, 60)
-                      : "对话";
-                const title = (values?.title as string | undefined) || preview || "对话";
-                const time = new Date(t.updated_at ?? "").toLocaleString("zh-CN", {
-                  month: "numeric",
-                  day: "numeric",
-                  hour: "2-digit",
-                  minute: "2-digit",
-                });
-                return (
-                  <button
-                    key={t.thread_id}
-                    onClick={() => {
-                      setActiveThreadId(t.thread_id);
-                      setThreadId(t.thread_id);
-                    }}
-                    className="flex items-center justify-between rounded-xl bg-muted px-4 py-3 text-left transition-colors hover:bg-muted/70"
-                  >
-                    <span className="truncate text-sm font-medium text-foreground">{title}</span>
-                    <span className="ml-4 shrink-0 text-xs text-muted-foreground">{time}</span>
-                  </button>
-                );
-              })}
-            </div>
-          )}
         </div>
       )}
 
@@ -471,11 +592,11 @@ export default function StudioNotebookDetailPage() {
         </div>
       )}
 
-      {/* 输入框区域 */}
-      <div className={`shrink-0 px-6 ${isChatView ? "border-t border-border py-4" : "pb-12"}`}>
+      {/* 聊天视图的底部输入框 */}
+      <div className={`relative z-10 shrink-0 px-6 ${isChatView ? "border-t border-border py-4" : "hidden"}`}>
         <form
           onSubmit={(e) => { void handleSend(e); }}
-          className="mx-auto flex w-[560px] items-center gap-3 rounded-2xl bg-card px-5 py-4 shadow-sm ring-1 ring-border"
+          className="mx-auto flex max-w-[720px] items-center gap-3 rounded-full bg-card px-5 py-3.5 shadow-md ring-1 ring-border"
         >
           <button
             type="button"
@@ -484,9 +605,17 @@ export default function StudioNotebookDetailPage() {
           >
             <Plus className="size-5" />
           </button>
+          <input
+            value={input}
+            onChange={(e) => setInput(e.target.value)}
+            placeholder="问问 AI..."
+            disabled={isStreaming}
+            className="flex-1 bg-transparent text-[15px] text-foreground placeholder:text-muted-foreground outline-none disabled:opacity-50"
+          />
+          {isStreaming && <Loader2 className="size-4 shrink-0 animate-spin text-muted-foreground" />}
           {models.length > 0 && (
             <Select value={selectedModel} onValueChange={setSelectedModel}>
-              <SelectTrigger className="h-7 w-auto shrink-0 gap-1 rounded-lg border-0 bg-muted px-2 text-xs text-muted-foreground shadow-none focus:ring-0">
+              <SelectTrigger className="h-7 w-auto shrink-0 gap-1 rounded-full border-0 bg-transparent px-2 text-sm text-muted-foreground shadow-none focus:ring-0 hover:bg-muted/60">
                 <SelectValue />
               </SelectTrigger>
               <SelectContent>
@@ -498,24 +627,6 @@ export default function StudioNotebookDetailPage() {
               </SelectContent>
             </Select>
           )}
-          <input
-            value={input}
-            onChange={(e) => setInput(e.target.value)}
-            placeholder="问问 AI..."
-            disabled={isStreaming}
-            className="flex-1 bg-transparent text-sm text-foreground placeholder:text-muted-foreground outline-none disabled:opacity-50"
-          />
-          <button
-            type="submit"
-            disabled={!input.trim() || isStreaming}
-            className="shrink-0 text-muted-foreground transition-colors hover:text-foreground disabled:opacity-30"
-          >
-            {isStreaming ? (
-              <Loader2 className="size-5 animate-spin" />
-            ) : (
-              <Send className="size-5" />
-            )}
-          </button>
         </form>
       </div>
 
diff --git a/frontend-web/src/pages/StudioNotebooksPage.tsx b/frontend-web/src/pages/StudioNotebooksPage.tsx
index 00bb0dcb..507063ab 100644
--- a/frontend-web/src/pages/StudioNotebooksPage.tsx
+++ b/frontend-web/src/pages/StudioNotebooksPage.tsx
@@ -2,11 +2,11 @@
 
 import { useState } from "react";
 import { Link } from "react-router-dom";
-import { Files, Loader2, Plus } from "lucide-react";
+import { Files, Loader2, Plus, MoreVertical, Pencil, Trash2 } from "lucide-react";
 import { useQueryClient } from "@tanstack/react-query";
 
 import { useStudioNotebooks } from "@/core/studio/hooks";
-import { createSearchSpace } from "@/core/studio/api";
+import { createSearchSpace, deleteSearchSpace, renameSearchSpace } from "@/core/studio/api";
 import { getStoredAuth } from "@/core/auth";
 import type { StudioNotebook } from "@/core/studio/types";
 import {
@@ -15,81 +15,175 @@ import {
   DialogHeader,
   DialogTitle,
 } from "@/components/ui/dialog";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
 import { Button } from "@/components/ui/button";
 
 function NotebookCardSkeleton() {
   return (
-    <div className="flex flex-col gap-3 rounded-2xl bg-card p-4">
-      <div className="size-10 animate-pulse rounded-xl bg-muted" />
-      <div className="flex flex-col gap-1.5">
-        <div className="h-4 w-3/4 animate-pulse rounded bg-muted" />
-        <div className="h-3 w-1/3 animate-pulse rounded bg-muted" />
+    <div className="flex flex-col rounded-[20px] bg-[#f2f2f2] p-5" style={{ minHeight: 180 }}>
+      <div className="size-10 animate-pulse rounded-xl bg-[#e0e0e0]" />
+      <div className="mt-auto flex flex-col gap-1.5 pt-8">
+        <div className="h-4 w-3/4 animate-pulse rounded bg-[#e0e0e0]" />
+        <div className="h-3 w-1/3 animate-pulse rounded bg-[#e0e0e0]" />
       </div>
     </div>
   );
 }
 
-function NotebookCard({ nb }: { nb: StudioNotebook }) {
+function NotebookCard({
+  nb,
+  onRename,
+  onDelete,
+}: {
+  nb: StudioNotebook;
+  onRename: (nb: StudioNotebook) => void;
+  onDelete: (nb: StudioNotebook) => void;
+}) {
   return (
-    <Link
-      to={`/page/workspace/studio/notebooks/${nb.id}`}
-      className="group flex flex-col gap-3 rounded-2xl bg-card p-4 transition-colors hover:bg-muted ring-1 ring-border"
-    >
-      <div className="flex items-start justify-between">
-        <div className="flex size-10 items-center justify-center rounded-xl bg-muted text-xl group-hover:bg-background">
-          {nb.avatar_url ? (
-            <img src={nb.avatar_url} alt="" className="size-6 rounded object-contain" />
-          ) : (
-            <Files className="size-5 text-muted-foreground" />
-          )}
+    <div className="group relative flex flex-col rounded-[20px] bg-[#f2f2f2] transition-colors hover:bg-[#e8e8e8]" style={{ minHeight: 180 }}>
+      <Link
+        to={`/page/workspace/studio/notebooks/${nb.id}`}
+        className="flex flex-1 flex-col p-5"
+      >
+        <div className="flex items-start justify-between">
+          <div className="flex size-11 items-center justify-center text-3xl leading-none select-none">
+            {nb.avatar_url ? (
+              <img src={nb.avatar_url} alt="" className="size-8 rounded object-contain" />
+            ) : (
+              <Files className="size-7 text-muted-foreground" />
+            )}
+          </div>
+          {/* spacer so title stays below icon */}
+          <div className="size-7" />
         </div>
+        <div className="mt-auto flex flex-col gap-1 pt-8">
+          <span className="line-clamp-2 text-[15px] font-medium leading-snug text-[#1f1f1f]">
+            {nb.name}
+          </span>
+          <span className="text-[13px] text-[#666]">{nb.source_count} 个来源</span>
+        </div>
+      </Link>
+
+      {/* three-dot menu — absolute so it doesn't shift layout */}
+      <div className="absolute right-4 top-4">
+        <DropdownMenu>
+          <DropdownMenuTrigger asChild>
+            <button
+              className="flex size-7 items-center justify-center rounded-full text-[#888] opacity-0 transition-opacity group-hover:opacity-100 hover:bg-black/10"
+              onClick={(e) => e.preventDefault()}
+            >
+              <MoreVertical className="size-4" />
+            </button>
+          </DropdownMenuTrigger>
+          <DropdownMenuContent align="end" className="w-36">
+            <DropdownMenuItem onClick={() => onRename(nb)}>
+              <Pencil className="mr-2 size-4" />
+              重命名
+            </DropdownMenuItem>
+            <DropdownMenuItem
+              onClick={() => onDelete(nb)}
+              className="text-destructive focus:text-destructive"
+            >
+              <Trash2 className="mr-2 size-4" />
+              删除
+            </DropdownMenuItem>
+          </DropdownMenuContent>
+        </DropdownMenu>
       </div>
-      <div className="flex flex-col gap-0.5">
-        <span className="line-clamp-2 text-sm font-medium leading-snug text-foreground">
-          {nb.name}
-        </span>
-        <span className="text-xs text-muted-foreground">{nb.source_count} 个来源</span>
-      </div>
-    </Link>
+    </div>
   );
 }
 
 export default function StudioNotebooksPage() {
   const { notebooks, isLoading, isError } = useStudioNotebooks();
   const queryClient = useQueryClient();
-  const [dialogOpen, setDialogOpen] = useState(false);
-  const [name, setName] = useState("");
-  const [creating, setCreating] = useState(false);
-  const [error, setError] = useState("");
 
-  const handleCreate = async () => {
-    const trimmed = name.trim();
+  // ── 新建 ──
+  const [createOpen, setCreateOpen] = useState(false);
+  const [createName, setCreateName] = useState("");
+  const [creating, setCreating] = useState(false);
+  const [createError, setCreateError] = useState("");
+
+  // ── 重命名 ──
+  const [renameTarget, setRenameTarget] = useState<StudioNotebook | null>(null);
+  const [renameName, setRenameName] = useState("");
+  const [renaming, setRenaming] = useState(false);
+  const [renameError, setRenameError] = useState("");
+
+  // ── 删除 ──
+  const [deleteTarget, setDeleteTarget] = useState<StudioNotebook | null>(null);
+  const [deleting, setDeleting] = useState(false);
+  const [deleteError, setDeleteError] = useState("");
+
+  function getToken() {
+    const email = getStoredAuth()?.email ?? "";
+    const token = queryClient.getQueryData<string>(["studio", "token", email]);
+    if (!token) throw new Error("未登录或 token 已过期，请刷新页面");
+    return token;
+  }
+
+  async function handleCreate() {
+    const trimmed = createName.trim();
     if (!trimmed) return;
     setCreating(true);
-    setError("");
+    setCreateError("");
     try {
-      const email = getStoredAuth()?.email ?? "";
-      const token = queryClient.getQueryData<string>(["studio", "token", email]);
-      if (!token) throw new Error("未登录或 token 已过期，请刷新页面");
-      await createSearchSpace(trimmed, token);
-      setDialogOpen(false);
-      setName("");
-      // 刷新笔记本列表
+      await createSearchSpace(trimmed, getToken());
+      setCreateOpen(false);
+      setCreateName("");
       await queryClient.invalidateQueries({ queryKey: ["studio", "notebooks"] });
     } catch (e) {
-      setError(e instanceof Error ? e.message : "创建失败");
+      setCreateError(e instanceof Error ? e.message : "创建失败");
     } finally {
       setCreating(false);
     }
-  };
+  }
+
+  async function handleRename() {
+    if (!renameTarget) return;
+    const trimmed = renameName.trim();
+    if (!trimmed) return;
+    setRenaming(true);
+    setRenameError("");
+    try {
+      await renameSearchSpace(renameTarget.id, trimmed, getToken());
+      setRenameTarget(null);
+      await queryClient.invalidateQueries({ queryKey: ["studio", "notebooks"] });
+    } catch (e) {
+      setRenameError(e instanceof Error ? e.message : "重命名失败");
+    } finally {
+      setRenaming(false);
+    }
+  }
+
+  async function handleDelete() {
+    if (!deleteTarget) return;
+    setDeleting(true);
+    setDeleteError("");
+    try {
+      await deleteSearchSpace(deleteTarget.id, getToken());
+      setDeleteTarget(null);
+      await queryClient.invalidateQueries({ queryKey: ["studio", "notebooks"] });
+    } catch (e) {
+      setDeleteError(e instanceof Error ? e.message : "删除失败");
+    } finally {
+      setDeleting(false);
+    }
+  }
 
   return (
     <div className="min-h-full bg-background p-8">
+      {/* Header */}
       <div className="mb-8 flex items-center justify-between">
         <h1 className="text-2xl font-semibold text-foreground">笔记本</h1>
         <button
-          onClick={() => { setDialogOpen(true); setError(""); setName(""); }}
-          className="flex items-center gap-1.5 rounded-lg bg-primary px-4 py-2 text-sm font-medium text-primary-foreground transition-colors hover:bg-primary/90"
+          onClick={() => { setCreateOpen(true); setCreateError(""); setCreateName(""); }}
+          className="flex items-center gap-1.5 rounded-full bg-primary px-5 py-2.5 text-sm font-medium text-primary-foreground transition-colors hover:bg-primary/90"
         >
           <Plus className="size-4" />
           新建笔记本
@@ -100,13 +194,22 @@ export default function StudioNotebooksPage() {
         <p className="text-sm text-muted-foreground">加载笔记本失败，请稍后重试。</p>
       )}
 
+      {/* Grid */}
       <div className="grid grid-cols-2 gap-4 sm:grid-cols-3 lg:grid-cols-4">
         {isLoading
           ? Array.from({ length: 8 }).map((_, i) => <NotebookCardSkeleton key={i} />)
-          : notebooks.map((nb) => <NotebookCard key={nb.id} nb={nb} />)}
+          : notebooks.map((nb) => (
+              <NotebookCard
+                key={nb.id}
+                nb={nb}
+                onRename={(nb) => { setRenameTarget(nb); setRenameName(nb.name); setRenameError(""); }}
+                onDelete={(nb) => { setDeleteTarget(nb); setDeleteError(""); }}
+              />
+            ))}
       </div>
 
-      <Dialog open={dialogOpen} onOpenChange={(v) => !creating && setDialogOpen(v)}>
+      {/* ── 新建 Dialog ── */}
+      <Dialog open={createOpen} onOpenChange={(v) => !creating && setCreateOpen(v)}>
         <DialogContent className="sm:max-w-md">
           <DialogHeader>
             <DialogTitle>新建笔记本</DialogTitle>
@@ -114,25 +217,78 @@ export default function StudioNotebooksPage() {
           <div className="flex flex-col gap-4 pt-2">
             <input
               autoFocus
-              value={name}
-              onChange={(e) => setName(e.target.value)}
+              value={createName}
+              onChange={(e) => setCreateName(e.target.value)}
               onKeyDown={(e) => { if (e.key === "Enter") void handleCreate(); }}
               placeholder="笔记本名称"
               disabled={creating}
               className="w-full rounded-lg border border-border bg-background px-3 py-2 text-sm outline-none focus:ring-2 focus:ring-primary disabled:opacity-50"
             />
-            {error && <p className="text-xs text-destructive">{error}</p>}
+            {createError && <p className="text-xs text-destructive">{createError}</p>}
             <div className="flex justify-end gap-2">
-              <Button variant="outline" size="sm" disabled={creating} onClick={() => setDialogOpen(false)}>
-                取消
-              </Button>
-              <Button size="sm" disabled={!name.trim() || creating} onClick={() => void handleCreate()}>
+              <Button variant="outline" size="sm" disabled={creating} onClick={() => setCreateOpen(false)}>取消</Button>
+              <Button size="sm" disabled={!createName.trim() || creating} onClick={() => void handleCreate()}>
                 {creating ? <Loader2 className="size-4 animate-spin" /> : "创建"}
               </Button>
             </div>
           </div>
         </DialogContent>
       </Dialog>
+
+      {/* ── 重命名 Dialog ── */}
+      <Dialog open={!!renameTarget} onOpenChange={(v) => !renaming && !v && setRenameTarget(null)}>
+        <DialogContent className="sm:max-w-md">
+          <DialogHeader>
+            <DialogTitle>重命名笔记本</DialogTitle>
+          </DialogHeader>
+          <div className="flex flex-col gap-4 pt-2">
+            <div className="flex items-center gap-3">
+              <div className="flex size-12 flex-shrink-0 items-center justify-center text-3xl">
+                {renameTarget?.avatar_url
+                  ? <img src={renameTarget.avatar_url} alt="" className="size-10 rounded object-contain" />
+                  : <Files className="size-8 text-muted-foreground" />}
+              </div>
+              <input
+                autoFocus
+                value={renameName}
+                onChange={(e) => setRenameName(e.target.value)}
+                onKeyDown={(e) => { if (e.key === "Enter") void handleRename(); }}
+                disabled={renaming}
+                className="flex-1 rounded-lg border-2 border-foreground bg-background px-3 py-2 text-sm outline-none disabled:opacity-50"
+              />
+            </div>
+            {renameError && <p className="text-xs text-destructive">{renameError}</p>}
+            <div className="flex justify-end gap-2">
+              <Button variant="outline" size="sm" disabled={renaming} onClick={() => setRenameTarget(null)}>取消</Button>
+              <Button size="sm" disabled={!renameName.trim() || renaming} onClick={() => void handleRename()}>
+                {renaming ? <Loader2 className="size-4 animate-spin" /> : "保存"}
+              </Button>
+            </div>
+          </div>
+        </DialogContent>
+      </Dialog>
+
+      {/* ── 删除确认 Dialog ── */}
+      <Dialog open={!!deleteTarget} onOpenChange={(v) => !deleting && !v && setDeleteTarget(null)}>
+        <DialogContent className="sm:max-w-sm">
+          <DialogHeader>
+            <DialogTitle>删除笔记本</DialogTitle>
+          </DialogHeader>
+          <div className="flex flex-col gap-4 pt-1">
+            <p className="text-sm text-muted-foreground">
+              确定要删除{deleteTarget ? <span className="font-medium text-foreground">「{deleteTarget.name}」</span> : ""}吗？
+              删除后笔记本内所有来源数据将一并移除，且无法恢复。
+            </p>
+            {deleteError && <p className="text-xs text-destructive">{deleteError}</p>}
+            <div className="flex justify-end gap-2">
+              <Button variant="outline" size="sm" disabled={deleting} onClick={() => setDeleteTarget(null)}>取消</Button>
+              <Button variant="destructive" size="sm" disabled={deleting} onClick={() => void handleDelete()}>
+                {deleting ? <Loader2 className="size-4 animate-spin" /> : "删除"}
+              </Button>
+            </div>
+          </div>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }