refactor(theme&project): 重构主题适配与项目列表功能

1. 新增路由感知的Antd主题切换，区分Canvas页面和普通页面的主题配置
2. 重构项目列表状态管理，拆分出全局项目列表hook并支持滚动加载
3. 优化项目操作弹窗样式与交互，新增去重逻辑与多语言适配
4. 重构项目页面切换逻辑，调整首页项目展示结构

src/components/AntdThemeProvider.tsx

@@ -1,5 +1,6 @@
 "use client";
 
+import { usePathname } from "next/navigation";
 import { App as AntdApp, ConfigProvider, theme, type ThemeConfig } from "antd";
 import { useEffect, useMemo, useState, type ReactNode } from "react";
 
@@ -58,6 +59,8 @@ function areTokensEqual(left: CanvasThemeTokens, right: CanvasThemeTokens): bool
 }
 
 export function AntdThemeProvider({ children }: { children: ReactNode }) {
+  const pathname = usePathname();
+  const isCanvasRoute = pathname?.startsWith("/canvas") ?? false;
   const [canvasTokens, setCanvasTokens] = useState<CanvasThemeTokens>(FALLBACK_TOKENS);
 
   useEffect(() => {
@@ -79,7 +82,49 @@ export function AntdThemeProvider({ children }: { children: ReactNode }) {
     return () => observer.disconnect();
   }, []);
 
-  const antdTheme = useMemo<ThemeConfig>(() => ({
+  const antdTheme = useMemo<ThemeConfig>(() => {
+    if (!isCanvasRoute) {
+      return {
+        algorithm: theme.defaultAlgorithm,
+        token: {
+          colorPrimary: "#5c3bc7",
+          colorInfo: "#5c3bc7",
+          colorBgBase: "#f9f9f9",
+          colorBgLayout: "#f9f9f9",
+          colorBgContainer: "#ffffff",
+          colorBgElevated: "#ffffff",
+          colorBgMask: "rgba(0, 0, 0, 0.45)",
+          colorBorder: "#e6e6e6",
+          colorBorderSecondary: "#f0f0f0",
+          colorText: "#333333",
+          colorTextBase: "#333333",
+          colorTextHeading: "#333333",
+          colorTextSecondary: "#666666",
+          colorIcon: "#999999",
+          colorIconHover: "#666666",
+          borderRadius: 8,
+          borderRadiusLG: 8,
+          wireframe: false,
+        },
+        components: {
+          Button: {
+            colorPrimary: "#5c3bc7",
+            colorPrimaryHover: "#6b4bd4",
+            colorPrimaryActive: "#4d2fb3",
+          },
+          Modal: {
+            contentBg: "#ffffff",
+            headerBg: "#ffffff",
+            titleColor: "#333333",
+          },
+          Tooltip: {
+            colorBgSpotlight: "#333333",
+          },
+        },
+      };
+    }
+
+    return {
       algorithm: theme.darkAlgorithm,
       token: {
         colorPrimary: canvasTokens.accent,
@@ -119,7 +164,8 @@ export function AntdThemeProvider({ children }: { children: ReactNode }) {
           colorBgSpotlight: canvasTokens.panelElevated,
         },
       },
-  }), [canvasTokens]);
+    };
+  }, [canvasTokens, isCanvasRoute]);
 
   useEffect(() => {
     ConfigProvider.config({

src/components/HomeProjectsContent.tsx

@@ -1,13 +1,20 @@
 "use client";
 
 import { useRouter } from "next/navigation";
-import { useCallback, useEffect, useRef, useState, type ReactNode } from "react";
+import {
+  useCallback,
+  useEffect,
+  useRef,
+  useState,
+  type ReactNode,
+} from "react";
 import {
   ProjectActionsDropdown,
   type ProjectActionKey,
 } from "@/components/ProjectActionsDropdown";
 import {
   ArrowIcon,
+  CloseIcon,
   LeftOutlinedIcon,
   SearchIcon,
   StartCreation,
@@ -83,6 +90,8 @@ const DEFAULT_PROJECT_PAGE_INFO: CanvasWorkflowPageInfo = {
   total: 0,
 };
 
+const ALL_PROJECTS_LOAD_MORE_OFFSET = 260;
+
 function formatProjectTime(value?: string): string {
   if (!value) return "-";
   const date = new Date(value);
@@ -216,7 +225,10 @@ function ProjectSectionGrid({
   const router = useRouter();
   const canGoPrev = !!pageInfo && pageInfo.page > 1;
   const canGoNext = !!pageInfo && pageInfo.page < pageInfo.pageCount;
-  const [firstProject, ...remainingProjects] = projects;
+  const uniqueProjects = projects.filter(
+    (project, index, list) => list.findIndex((item) => item.id === project.id) === index
+  );
+  const [firstProject, ...remainingProjects] = uniqueProjects;
 
   return (
     <div className="relative grid gap-5 md:grid-cols-2 xl:grid-cols-5">
@@ -307,46 +319,74 @@ function ProjectActionModals({
   onCancelDelete: () => void;
   onConfirmDelete: () => void;
 }) {
+  const modalClassName =
+    "[&_.ant-modal-content]:!rounded-[9px] [&_.ant-modal-content]:!p-[30px] [&_.ant-modal-header]:!mb-0 [&_.ant-modal-body]:!pt-2 [&_.ant-modal-footer]:!mt-6 [&_.ant-modal-footer]:!flex [&_.ant-modal-footer]:!justify-end [&_.ant-modal-footer]:!gap-2.5 [&_.ant-modal-footer_.ant-btn+_.ant-btn]:!ml-0 [&_.ant-modal-close]:!right-2.5 [&_.ant-modal-close]:!top-2.5 [&_.ant-modal-close]:!h-5 [&_.ant-modal-close]:!w-5 [&_.ant-modal-close]:!text-[#999] hover:[&_.ant-modal-close]:!text-[#666]";
+  const modalTitleClassName = "text-[24px] font-medium leading-[22px] text-[#333]";
+  const cancelButtonClassName =
+    "!h-[37px] !w-[109px] !rounded-[24px] !border-0 !bg-[#f0f0f0] !p-0 !text-[16px] !font-medium !text-[#666] !shadow-none hover:!bg-[#e6e6e6] hover:!text-[#666]";
+  const confirmButtonClassName =
+    "!h-[37px] !w-[109px] !rounded-[24px] !border-0 !bg-[#5c3bc7] !p-0 !text-[16px] !font-medium !text-white !shadow-none hover:!bg-[#6b4bd4]";
+  const deleteConfirmButtonClassName =
+    "!h-[37px] !w-[109px] !rounded-[24px] !border-0 !bg-[#b7301e] !p-0 !text-[16px] !font-medium !text-white !shadow-none hover:!bg-[#a62b1b]";
+
   return (
     <>
       <Modal
-        title="重命名项目"
+        title={<span className={modalTitleClassName}>重命名项目</span>}
         open={renameOpen}
+        closeIcon={<CloseIcon />}
         centered
+        width={491}
+        className={modalClassName}
         confirmLoading={isActionLoading}
         okText="确认"
-        cancelText="取消"
-        okButtonProps={{ disabled: !renameTitle.trim() }}
+        cancelText="取消(esc)"
+        okButtonProps={{
+          className: confirmButtonClassName,
+          disabled: !renameTitle.trim(),
+        }}
+        cancelButtonProps={{ className: cancelButtonClassName }}
         onOk={onConfirmRename}
         onCancel={onCancelRename}
         destroyOnHidden
       >
-        <Form layout="vertical" preserve={false}>
-          <Form.Item label="项目名称">
+        <Form layout="vertical" preserve={false} className="!mt-[7px]">
+          <Form.Item
+            label={<span className="text-[14px] leading-[22px] text-[#666]">项目名称</span>}
+            className="!mb-0"
+          >
             <Input
               value={renameTitle}
               onChange={(event) => onRenameTitleChange(event.target.value)}
               placeholder="请输入项目名称"
               onPressEnter={onConfirmRename}
               autoFocus
+              className="!h-[37px] !rounded-[9px] !border-[#e6e6e6] !text-[14px] !shadow-none hover:!border-[#d6ceef] focus:!border-[#5c3bc7]"
             />
           </Form.Item>
         </Form>
       </Modal>
       <Modal
-        title="删除项目"
+        title={<span className={modalTitleClassName}>确认删除</span>}
         open={deleteTitle !== null}
+        closeIcon={<CloseIcon />}
         centered
+        width={491}
+        className={modalClassName}
         confirmLoading={isActionLoading}
-        okText="确认删除"
-        okButtonProps={{ danger: true }}
-        cancelText="取消"
+        okText="确认"
+        okButtonProps={{
+          danger: true,
+          className: deleteConfirmButtonClassName,
+        }}
+        cancelText="取消(esc)"
+        cancelButtonProps={{ className: cancelButtonClassName }}
         onOk={onConfirmDelete}
         onCancel={onCancelDelete}
         destroyOnHidden
       >
-        <p className="m-0 text-sm leading-6">
-          确认删除"{deleteTitle ?? ""}"？此操作不可撤销。
+        <p className="m-0 text-[14px] leading-[22px] text-[#666]">
+          删除的内容将无法找回
         </p>
       </Modal>
     </>
@@ -428,18 +468,21 @@ function useProjectSectionState(pageSize: number, initialPage = 1) {
     window.setTimeout(() => setProjectCoverProgress(id, undefined), 450);
   }, [setProjectCoverProgress, stopCoverProgressTimer]);
 
-  const loadProjects = useCallback(async (nextPage = page) => {
+  const loadProjects = useCallback(async (nextPage: number, options?: { append?: boolean }) => {
     setIsLoadingProjects(true);
     try {
       const data = await listCanvasWorkflows({ page: nextPage, pageSize });
-      setProjects(
-        data.list
+      const nextProjects = data.list
           .filter((item) => !item.deleted)
-          .map((item) => mapWorkflowToProject(item))
+          .map((item) => mapWorkflowToProject(item));
+      setProjects((currentProjects) =>
+        options?.append ? [...currentProjects, ...nextProjects] : nextProjects
       );
       setPageInfo(data.pageInfo);
     } catch {
+      if (!options?.append) {
         setProjects([]);
+      }
       setPageInfo({
         ...DEFAULT_PROJECT_PAGE_INFO,
         page: nextPage,
@@ -448,44 +491,325 @@ function useProjectSectionState(pageSize: number, initialPage = 1) {
     } finally {
       setIsLoadingProjects(false);
     }
-  }, [page, pageSize]);
+  }, [pageSize]);
 
   useEffect(() => {
-    let canceled = false;
+    void loadProjects(page);
+    return undefined;
+  }, [loadProjects, page]);
+
+  useEffect(() => {
+    return () => {
+      stopCoverProgressTimer();
+    };
+  }, [stopCoverProgressTimer]);
+
+  const handleStartCreation = async () => {
+    if (isCreating) {
+      message.warning("项目创建中，请稍后再试");
+      return;
+    }
+
+    setIsCreating(true);
+    const title = "未命名项目";
+    try {
+      const result = await createCanvasWorkflow({
+        title,
+        desp: "",
+        properties: buildEmptyWorkflowProperties(title),
+      });
+      const workflowId = (result.data as any)?.id;
+      router.push(workflowId ? `/canvas?workflowId=${workflowId}` : "/canvas");
+      message.success("项目创建成功");
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : "Failed to create workflow.");
+      setIsCreating(false);
+    }
+  };
+
+  const buildFullUpdatePayload = async (id: number) => {
+    const detail = await getCanvasWorkflowDetail(id);
+    return {
+      id,
+      title: detail.title ?? "",
+      desp: detail.desp ?? "",
+      properties: detail.properties ?? "",
+      coverUrl: detail.coverUrl ?? "",
+    };
+  };
+
+  const handleProjectAction = async (id: number, action: ProjectActionKey) => {
+    if (actionProjectId !== null) return;
+
+    setActionProjectId(id);
+    try {
+      if (action === "rename") {
+        const payload = await buildFullUpdatePayload(id);
+        setRenamePayload(payload);
+        setRenameTitle(payload.title);
+        return;
+      }
+
+      if (action === "change-cover") {
+        coverProjectIdRef.current = id;
+        setCoverProjectId(id);
+        coverInputRef.current?.click();
+        return;
+      }
+
+      if (action === "duplicate") {
+        const detail = await getCanvasWorkflowDetail(id);
+        const title = detail.title ? `${detail.title} 副本` : "未命名项目副本";
+        const result = await createCanvasWorkflow({
+          title,
+          desp: detail.desp ?? "",
+          properties: detail.properties ?? "",
+          coverUrl: detail.coverUrl ?? "",
+        });
+        message.success("副本已创建");
+        await loadProjects(page);
+
+        // const workflowId = (result.data as any)?.id;
+        // if (workflowId) {
+        //   router.push(`/canvas?workflowId=${workflowId}`);
+        // }
+        return;
+      }
+
+      if (action === "delete") {
+        const detail = await getCanvasWorkflowDetail(id);
+        setDeletePayload({
+          id,
+          title: detail.title ?? detail.code ?? `#${id}`,
+        });
+      }
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : "Project action failed.");
+    } finally {
+      setActionProjectId(null);
+    }
+  };
+
+  const closeRenameModal = () => {
+    setRenamePayload(null);
+    setRenameTitle("");
+  };
+
+  const confirmRenameProject = async () => {
+    if (!renamePayload || actionProjectId !== null) return;
+
+    setActionProjectId(renamePayload.id);
+    try {
+      await updateCanvasWorkflow({
+        ...renamePayload,
+        title: renameTitle,
+      });
+      message.success("项目已重命名");
+      setProjects((currentProjects) =>
+        currentProjects.map((project) =>
+          project.id === renamePayload.id
+            ? { ...project, title: renameTitle.trim() || project.title }
+            : project
+        )
+      );
+      closeRenameModal();
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : "Project rename failed.");
+    } finally {
+      setActionProjectId(null);
+    }
+  };
+
+  const closeDeleteModal = () => {
+    setDeletePayload(null);
+  };
+
+  const closeCoverModal = () => {
+    coverProjectIdRef.current = null;
+    setCoverProjectId(null);
+  };
+
+  const handleCoverFileChange = async (file: File | undefined) => {
+    const selectedCoverProjectId = coverProjectIdRef.current ?? coverProjectId;
+    if (!file || selectedCoverProjectId === null || actionProjectId !== null) return;
+    if (!file.type.startsWith("image/")) {
+      message.error("请选择图片文件");
+      closeCoverModal();
+      return;
+    }
+
+    setActionProjectId(selectedCoverProjectId);
+    startFakeCoverProgress(selectedCoverProjectId);
+    try {
+      const coverPayload = await buildFullUpdatePayload(selectedCoverProjectId);
+      const uploadedCoverUrl = await uploadCanvasWorkflowCover(file);
+      await updateCanvasWorkflow({
+        ...coverPayload,
+        coverUrl: uploadedCoverUrl,
+      });
+      message.success("封面已更新");
+      finishCoverProgress(selectedCoverProjectId, uploadedCoverUrl);
+      closeCoverModal();
+    } catch (error) {
+      stopCoverProgressTimer();
+      setProjectCoverProgress(selectedCoverProjectId, undefined);
+      message.error(error instanceof Error ? error.message : "Project cover update failed.");
+    } finally {
+      setActionProjectId(null);
+      if (coverInputRef.current) {
+        coverInputRef.current.value = "";
+      }
+    }
+  };
+
+  const confirmDeleteProject = async () => {
+    if (!deletePayload || actionProjectId !== null) return;
+
+    setActionProjectId(deletePayload.id);
+    try {
+      await deleteCanvasWorkflow(deletePayload.id);
+      message.success("项目已删除");
+      closeDeleteModal();
+      await loadProjects(page);
+    } catch (error) {
+      message.error(error instanceof Error ? error.message : "Project delete failed.");
+    } finally {
+      setActionProjectId(null);
+    }
+  };
+
+  return {
+    projects,
+    pageInfo,
+    isLoadingProjects,
+    isCreating,
+    isActionLoading: actionProjectId !== null,
+    renamePayload,
+    renameTitle,
+    setRenameTitle,
+    closeRenameModal,
+    confirmRenameProject,
+    coverInputRef,
+    closeCoverModal,
+    handleCoverFileChange,
+    deletePayload,
+    closeDeleteModal,
+    confirmDeleteProject,
+    handleStartCreation,
+    handleProjectAction,
+    goPrevPage: () => setPage((current) => Math.max(1, current - 1)),
+    goNextPage: () => setPage((current) => Math.min(pageInfo.pageCount, current + 1)),
+  };
+}
 
-    async function loadPageProjects() {
+function useAllProjectsState() {
+  const pageSize = 20;
+  const router = useRouter();
+  const coverInputRef = useRef<HTMLInputElement>(null);
+  const coverProjectIdRef = useRef<number | null>(null);
+  const coverProgressTimerRef = useRef<number | null>(null);
+  const loadingMorePageRef = useRef<number | null>(null);
+  const [projects, setProjects] = useState<ProjectData[]>([]);
+  const [page, setPage] = useState(1);
+  const [pageInfo, setPageInfo] = useState<CanvasWorkflowPageInfo>({
+    ...DEFAULT_PROJECT_PAGE_INFO,
+    page: 1,
+    pageSize,
+  });
+  const [isLoadingProjects, setIsLoadingProjects] = useState(false);
+  const [isCreating, setIsCreating] = useState(false);
+  const [actionProjectId, setActionProjectId] = useState<number | null>(null);
+  const [renamePayload, setRenamePayload] = useState<{
+    id: number;
+    title: string;
+    desp: string;
+    properties: string;
+    coverUrl: string;
+  } | null>(null);
+  const [renameTitle, setRenameTitle] = useState("");
+  const [coverProjectId, setCoverProjectId] = useState<number | null>(null);
+  const [deletePayload, setDeletePayload] = useState<{
+    id: number;
+    title: string;
+  } | null>(null);
+
+  const stopCoverProgressTimer = useCallback(() => {
+    if (coverProgressTimerRef.current) {
+      window.clearInterval(coverProgressTimerRef.current);
+      coverProgressTimerRef.current = null;
+    }
+  }, []);
+
+  const setProjectCoverProgress = useCallback((id: number, progress?: number) => {
+    setProjects((currentProjects) =>
+      currentProjects.map((project) =>
+        project.id === id ? { ...project, uploadProgress: progress } : project
+      )
+    );
+  }, []);
+
+  const startFakeCoverProgress = useCallback((id: number) => {
+    stopCoverProgressTimer();
+    setProjectCoverProgress(id, 1);
+    coverProgressTimerRef.current = window.setInterval(() => {
+      setProjects((currentProjects) =>
+        currentProjects.map((project) => {
+          if (project.id !== id || typeof project.uploadProgress !== "number") return project;
+          const nextProgress = Math.min(
+            90,
+            project.uploadProgress + Math.max(1, Math.round((90 - project.uploadProgress) * 0.18))
+          );
+          return { ...project, uploadProgress: nextProgress };
+        })
+      );
+    }, 300);
+  }, [setProjectCoverProgress, stopCoverProgressTimer]);
+
+  const finishCoverProgress = useCallback((id: number, coverUrl: string) => {
+    stopCoverProgressTimer();
+    setProjects((currentProjects) =>
+      currentProjects.map((project) =>
+        project.id === id ? { ...project, image: coverUrl, uploadProgress: 100 } : project
+      )
+    );
+    window.setTimeout(() => setProjectCoverProgress(id, undefined), 450);
+  }, [setProjectCoverProgress, stopCoverProgressTimer]);
+
+  const loadProjectsPage = useCallback(async (
+    nextPage: number,
+    options?: { append?: boolean }
+  ) => {
     setIsLoadingProjects(true);
     try {
-        const data = await listCanvasWorkflows({ page, pageSize });
-        if (canceled) return;
-        setProjects(
-          data.list
+      const data = await listCanvasWorkflows({ page: nextPage, pageSize });
+      const nextProjects = data.list
         .filter((item) => !item.deleted)
-            .map((item) => mapWorkflowToProject(item))
-        );
+        .map((item) => mapWorkflowToProject(item));
+      setProjects((currentProjects) => {
+        if (!options?.append) return nextProjects;
+        const existingIds = new Set(currentProjects.map((project) => project.id));
+        const uniqueNextProjects = nextProjects.filter((project) => !existingIds.has(project.id));
+        return [...currentProjects, ...uniqueNextProjects];
+      });
       setPageInfo(data.pageInfo);
+      setPage(nextPage);
     } catch {
-        if (!canceled) {
+      if (!options?.append) {
         setProjects([]);
+      }
       setPageInfo({
         ...DEFAULT_PROJECT_PAGE_INFO,
-            page,
+        page: nextPage,
         pageSize,
       });
-        }
     } finally {
-        if (!canceled) {
       setIsLoadingProjects(false);
     }
-      }
-    }
-
-    void loadPageProjects();
+  }, []);
 
-    return () => {
-      canceled = true;
-    };
-  }, [page, pageSize]);
+  useEffect(() => {
+    void loadProjectsPage(1);
+  }, [loadProjectsPage]);
 
   useEffect(() => {
     return () => {
@@ -549,19 +873,14 @@ function useProjectSectionState(pageSize: number, initialPage = 1) {
       if (action === "duplicate") {
         const detail = await getCanvasWorkflowDetail(id);
         const title = detail.title ? `${detail.title} 副本` : "未命名项目副本";
-        const result = await createCanvasWorkflow({
+        await createCanvasWorkflow({
           title,
           desp: detail.desp ?? "",
           properties: detail.properties ?? "",
           coverUrl: detail.coverUrl ?? "",
         });
         message.success("副本已创建");
-        await loadProjects();
-
-        const workflowId = (result.data as any)?.id;
-        if (workflowId) {
-          router.push(`/canvas?workflowId=${workflowId}`);
-        }
+        await loadProjectsPage(1);
         return;
       }
 
@@ -659,7 +978,7 @@ function useProjectSectionState(pageSize: number, initialPage = 1) {
       await deleteCanvasWorkflow(deletePayload.id);
       message.success("项目已删除");
       closeDeleteModal();
-      await loadProjects();
+      await loadProjectsPage(1);
     } catch (error) {
       message.error(error instanceof Error ? error.message : "Project delete failed.");
     } finally {
@@ -667,6 +986,16 @@ function useProjectSectionState(pageSize: number, initialPage = 1) {
     }
   };
 
+  const loadNextPage = useCallback(() => {
+    const nextPage = page + 1;
+    if (isLoadingProjects || nextPage > pageInfo.pageCount) return;
+    if (loadingMorePageRef.current === nextPage) return;
+    loadingMorePageRef.current = nextPage;
+    void loadProjectsPage(nextPage, { append: true }).finally(() => {
+      loadingMorePageRef.current = null;
+    });
+  }, [isLoadingProjects, loadProjectsPage, page, pageInfo.pageCount]);
+
   return {
     projects,
     pageInfo,
@@ -686,8 +1015,7 @@ function useProjectSectionState(pageSize: number, initialPage = 1) {
     confirmDeleteProject,
     handleStartCreation,
     handleProjectAction,
-    goPrevPage: () => setPage((current) => Math.max(1, current - 1)),
-    goNextPage: () => setPage((current) => Math.min(pageInfo.pageCount, current + 1)),
+    loadNextPage,
   };
 }
 
@@ -779,8 +1107,10 @@ function RecentProjectsSection({
 }
 
 function AllProjectsSection({ onBackClick }: { onBackClick: () => void }) {
+  const [stickyTop, setStickyTop] = useState(90);
   const {
     projects,
+    pageInfo,
     isLoadingProjects,
     isCreating,
     isActionLoading,
@@ -797,11 +1127,46 @@ function AllProjectsSection({ onBackClick }: { onBackClick: () => void }) {
     confirmDeleteProject,
     handleStartCreation,
     handleProjectAction,
-  } = useProjectSectionState(20);
+    loadNextPage,
+  } = useAllProjectsState();
+  const canLoadMoreProjects = pageInfo.page < pageInfo.pageCount;
+
+  useEffect(() => {
+    const updateStickyTop = () => {
+      const header = document.querySelector("header");
+      setStickyTop(header?.getBoundingClientRect().height ?? 0);
+    };
+
+    updateStickyTop();
+    window.addEventListener("resize", updateStickyTop);
+    return () => {
+      window.removeEventListener("resize", updateStickyTop);
+    };
+  }, []);
+
+  useEffect(() => {
+    const handleScroll = () => {
+      if (!canLoadMoreProjects || isLoadingProjects) return;
+      const distanceToBottom =
+        document.documentElement.scrollHeight - window.innerHeight - window.scrollY;
+      if (distanceToBottom <= ALL_PROJECTS_LOAD_MORE_OFFSET) {
+        loadNextPage();
+      }
+    };
+
+    window.addEventListener("scroll", handleScroll, { passive: true });
+    handleScroll();
+    return () => {
+      window.removeEventListener("scroll", handleScroll);
+    };
+  }, [canLoadMoreProjects, isLoadingProjects, loadNextPage]);
 
   return (
     <section>
-      <div className="mb-5 flex items-center justify-between">
+      <div
+        className="sticky z-20 -mx-5 mb-5 flex items-center justify-between border-b border-[#f0f0f0] bg-[#f9f9f9]/95 px-5 py-3 backdrop-blur"
+        style={{ top: stickyTop }}
+      >
         <div className="flex items-center justify-center gap-x-1 overflow-hidden whitespace-nowrap">
           <button
             type="button"
@@ -812,7 +1177,7 @@ function AllProjectsSection({ onBackClick }: { onBackClick: () => void }) {
             <span>返回</span>
           </button>
           <h2 className="text-[20px] font-bold leading-none text-[#333]">
-            最近项目
+            全部项目
           </h2>
         </div>
       </div>
@@ -823,6 +1188,15 @@ function AllProjectsSection({ onBackClick }: { onBackClick: () => void }) {
         onStartCreation={handleStartCreation}
         onProjectAction={handleProjectAction}
       />
+      <div className="flex h-14 items-center justify-center text-[13px] font-medium text-[#999]">
+        {isLoadingProjects && projects.length > 0
+          ? "加载中..."
+          : canLoadMoreProjects
+            ? "继续下拉加载更多"
+            : projects.length > 0
+              ? "没有更多项目"
+              : null}
+      </div>
       <ProjectActionModals
         isActionLoading={isActionLoading}
         renameOpen={!!renamePayload}
@@ -1021,7 +1395,10 @@ export function HomeProjectsContent({
 
   return (
     <div className="mx-auto w-full max-w-[1456px] px-5 pb-16 pt-[30px]">
-      <div className={`${isShowAll ? "hidden" : ""}`}>
+      {isShowAll ? (
+        <AllProjectsSection onBackClick={() => setIsShowAll(false)} />
+      ) : (
+        <>
           {heroSection}
 
           <RecentProjectsSection
@@ -1030,11 +1407,8 @@ export function HomeProjectsContent({
           />
 
           <ShowsSection />
-      </div>
-
-      <div className={`${!isShowAll ? "hidden" : ""}`}>
-        <AllProjectsSection onBackClick={() => setIsShowAll(false)} />
-      </div>
+        </>
+      )}
     </div>
   );
 }