From a1d57d6b44c7b7b7ffc5d3d17ad2b40e4a1ceb6e Mon Sep 17 00:00:00 2001
From: Zhang Chao <zhangchaozqd@163.com>
Date: Tue, 11 Aug 2026 18:04:02 +0800
Subject: [PATCH] =?UTF-8?q?=E5=90=8E=E5=8F=B0=E7=8B=AC=E7=AB=8B=E7=99=BB?=
 =?UTF-8?q?=E5=BD=95=E9=A1=B5=E9=9D=A2=EF=BC=8C=E5=B9=B6=E5=8A=A0=E5=85=A5?=
 =?UTF-8?q?=E6=9D=83=E9=99=90=E6=8E=A7=E5=88=B6=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 handlers/admin_view.go         | 105 ++++++++++++++++
 handlers/auth.go               |  61 +++++++++
 handlers/comment.go            |  38 ++++++
 handlers/post.go               |  52 ++++++--
 handlers/view.go               |  23 ++++
 middleware/auth.go             |  22 ++--
 routers/router.go              |  45 ++++---
 static/admin/app.js            | 220 +++++++++++++++++++--------------
 static/admin/index.html        | 112 ++++++++++-------
 static/admin/login.html        |  76 ++++++++++++
 static/admin/style.css         |  54 ++++++++
 templates/default/sidebar.html |   8 +-
 12 files changed, 638 insertions(+), 178 deletions(-)
 create mode 100644 handlers/admin_view.go
 create mode 100644 static/admin/login.html

diff --git a/handlers/admin_view.go b/handlers/admin_view.go
new file mode 100644
index 0000000..2b798bf
--- /dev/null
+++ b/handlers/admin_view.go
@@ -0,0 +1,105 @@
+package handlers
+
+import (
+	"html/template"
+	"log/slog"
+	"net/http"
+	"sync"
+
+	"goblog/database"
+	"goblog/models"
+
+	"github.com/gin-gonic/gin"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+// adminTemplatePath 后台单页模板（含 {{define}} 分块，按权限渲染）
+const adminTemplatePath = "./static/admin/index.html"
+
+// AdminPageData 后台页面模板数据
+type AdminPageData struct {
+	Menus       []AdminMenuGroup // 当前角色可见菜单（登录接口同源）
+	PageSet     map[string]bool  // 菜单中的页面标识集合，模板据此渲染对应页面框架
+	DisplayName string           // 侧边栏显示的用户名
+}
+
+var (
+	adminTmplOnce sync.Once
+	adminTmpl     *template.Template
+	adminTmplErr  error
+)
+
+// getAdminTemplate 懒加载后台模板（仅解析一次）
+func getAdminTemplate() (*template.Template, error) {
+	adminTmplOnce.Do(func() {
+		adminTmpl, adminTmplErr = template.ParseFiles(adminTemplatePath)
+		if adminTmplErr != nil {
+			slog.Error("解析后台模板失败", "path", adminTemplatePath, "error", adminTmplErr)
+		}
+	})
+	return adminTmpl, adminTmplErr
+}
+
+// menuPageSet 从菜单提取页面标识集合
+func menuPageSet(menus []AdminMenuGroup) map[string]bool {
+	set := make(map[string]bool)
+	for _, g := range menus {
+		for _, item := range g.Items {
+			set[item.Key] = true
+		}
+	}
+	return set
+}
+
+// AdminLoginView 独立登录页
+func AdminLoginView(c *gin.Context) {
+	c.File("./static/admin/login.html")
+}
+
+// AdminView 后台管理页面：校验登录态后按角色用模板渲染菜单与页面框架
+func AdminView(c *gin.Context) {
+	tokenString, err := c.Cookie("token")
+	if err != nil || tokenString == "" {
+		c.Redirect(http.StatusFound, "/admin/login")
+		return
+	}
+
+	claims := &Claims{}
+	token, err := jwt.ParseWithClaims(tokenString, claims, func(t *jwt.Token) (interface{}, error) {
+		return jwtSecret, nil
+	})
+	if err != nil || !token.Valid {
+		c.Redirect(http.StatusFound, "/admin/login")
+		return
+	}
+
+	// 校验用户当前状态（禁用账号不允许进入后台）
+	var user models.User
+	if err := database.DB.First(&user, claims.UserID).Error; err != nil || user.Status == 0 || !user.IsActive {
+		c.Redirect(http.StatusFound, "/admin/login")
+		return
+	}
+
+	tmpl, tmplErr := getAdminTemplate()
+	if tmplErr != nil {
+		c.String(http.StatusInternalServerError, "后台模板加载失败")
+		return
+	}
+
+	// 菜单与登录接口保持同一来源，页面框架只渲染菜单内的页面
+	menus := GetMenusByRole(user.Role)
+	displayName := user.Nickname
+	if displayName == "" {
+		displayName = user.Username
+	}
+	data := AdminPageData{
+		Menus:       menus,
+		PageSet:     menuPageSet(menus),
+		DisplayName: displayName,
+	}
+
+	c.Header("Content-Type", "text/html; charset=utf-8")
+	if err := tmpl.ExecuteTemplate(c.Writer, "admin_index", data); err != nil {
+		slog.Error("渲染后台页面失败", "error", err)
+	}
+}
diff --git a/handlers/auth.go b/handlers/auth.go
index 09dc889..05188a4 100644
--- a/handlers/auth.go
+++ b/handlers/auth.go
@@ -18,6 +18,50 @@ func JWTSecret() []byte {
 	return jwtSecret
 }
 
+// AdminMenuItem 后台菜单项
+type AdminMenuItem struct {
+	Key  string `json:"key"`  // 页面标识，与页面 div 的 data-page 对应
+	Name string `json:"name"` // 菜单显示名称
+}
+
+// AdminMenuGroup 后台菜单分组（Group 为空表示顶级菜单）
+type AdminMenuGroup struct {
+	Group string          `json:"group"`
+	Items []AdminMenuItem `json:"items"`
+}
+
+// GetMenusByRole 根据角色返回后台菜单
+func GetMenusByRole(role string) []AdminMenuGroup {
+	if role == "admin" {
+		return []AdminMenuGroup{
+			{Group: "", Items: []AdminMenuItem{
+				{Key: "dashboard", Name: "仪表盘"},
+			}},
+			{Group: "内容管理", Items: []AdminMenuItem{
+				{Key: "posts", Name: "文章管理"},
+				{Key: "categories", Name: "分类管理"},
+				{Key: "tags", Name: "标签管理"},
+				{Key: "pages", Name: "页面管理"},
+				{Key: "comments", Name: "评论管理"},
+			}},
+			{Group: "系统管理", Items: []AdminMenuItem{
+				{Key: "users", Name: "用户管理"},
+				{Key: "files", Name: "文件管理"},
+				{Key: "themes", Name: "主题管理"},
+				{Key: "settings", Name: "基础设置"},
+			}},
+		}
+	}
+	// 普通用户：仪表盘 + 文章管理 + 评论管理
+	return []AdminMenuGroup{
+		{Group: "", Items: []AdminMenuItem{
+			{Key: "dashboard", Name: "仪表盘"},
+			{Key: "posts", Name: "文章管理"},
+			{Key: "comments", Name: "评论管理"},
+		}},
+	}
+}
+
 // 登录请求
 type LoginRequest struct {
 	Username string `json:"username" binding:"required"`
@@ -88,6 +132,9 @@ func Login(c *gin.Context) {
 		return
 	}
 
+	// 同时写入 Cookie，供服务端渲染后台页面时识别登录态
+	c.SetCookie("token", tokenString, 7*24*3600, "/", "", false, true)
+
 	c.JSON(http.StatusOK, gin.H{
 		"token": tokenString,
 		"user": gin.H{
@@ -100,9 +147,23 @@ func Login(c *gin.Context) {
 			"last_login_at": user.LastLoginAt,
 			"login_count":   user.LoginCount,
 		},
+		// 菜单由登录接口根据角色返回
+		"menus": GetMenusByRole(user.Role),
 	})
 }
 
+// 退出登录（清除服务端 Cookie）
+func Logout(c *gin.Context) {
+	c.SetCookie("token", "", -1, "/", "", false, true)
+	c.JSON(http.StatusOK, gin.H{"message": "已退出登录"})
+}
+
+// WebLogout 前台页面退出登录（清除 Cookie 后回首页）
+func WebLogout(c *gin.Context) {
+	c.SetCookie("token", "", -1, "/", "", false, true)
+	c.Redirect(http.StatusFound, "/")
+}
+
 // 获取当前用户信息
 func GetCurrentUser(c *gin.Context) {
 	userID, _ := c.Get("userID")
diff --git a/handlers/comment.go b/handlers/comment.go
index 468ac5f..5b6981d 100644
--- a/handlers/comment.go
+++ b/handlers/comment.go
@@ -30,6 +30,14 @@ func GetComments(c *gin.Context) {
 			return db.Select("id", "title", "slug")
 		})
 
+	// 非管理员只能查看自己文章上的评论
+	if !isAdmin(c) {
+		if userID, exists := c.Get("userID"); exists {
+			db = db.Where("post_id IN (?)",
+				database.DB.Model(&models.Post{}).Select("id").Where("author_id = ?", userID))
+		}
+	}
+
 	if postID != "" {
 		db = db.Where("post_id = ?", postID)
 	}
@@ -95,6 +103,21 @@ func CreateComment(c *gin.Context) {
 	c.JSON(http.StatusCreated, gin.H{"data": comment})
 }
 
+// canManageComment 检查当前用户是否有权管理该评论（管理员始终可以，普通用户只能管理自己文章上的评论）
+func canManageComment(c *gin.Context, comment *models.Comment) bool {
+	if isAdmin(c) {
+		return true
+	}
+	if userID, exists := c.Get("userID"); exists {
+		var post models.Post
+		if err := database.DB.Select("author_id").First(&post, comment.PostID).Error; err != nil {
+			return false
+		}
+		return post.AuthorID == userID.(uint)
+	}
+	return false
+}
+
 // 审核评论
 func ApproveComment(c *gin.Context) {
 	id := c.Param("id")
@@ -105,6 +128,11 @@ func ApproveComment(c *gin.Context) {
 		return
 	}
 
+	if !canManageComment(c, &comment) {
+		c.JSON(http.StatusForbidden, gin.H{"error": "无权管理该评论"})
+		return
+	}
+
 	comment.Status = "approved"
 	if err := database.DB.Save(&comment).Error; err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "审核失败"})
@@ -124,6 +152,11 @@ func MarkSpamComment(c *gin.Context) {
 		return
 	}
 
+	if !canManageComment(c, &comment) {
+		c.JSON(http.StatusForbidden, gin.H{"error": "无权管理该评论"})
+		return
+	}
+
 	comment.Status = "spam"
 	if err := database.DB.Save(&comment).Error; err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "操作失败"})
@@ -143,6 +176,11 @@ func DeleteComment(c *gin.Context) {
 		return
 	}
 
+	if !canManageComment(c, &comment) {
+		c.JSON(http.StatusForbidden, gin.H{"error": "无权管理该评论"})
+		return
+	}
+
 	if err := database.DB.Delete(&comment).Error; err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "删除评论失败"})
 		return
diff --git a/handlers/post.go b/handlers/post.go
index a77a2c3..5d4589d 100644
--- a/handlers/post.go
+++ b/handlers/post.go
@@ -82,22 +82,23 @@ func GetPosts(c *gin.Context) {
 
 	db := database.DB.Model(&models.Post{}).Preload("Category").Preload("Tags").Preload("Author")
 
-	// 前端只显示已发布的文章
-	if !isAdmin(c) {
+	// 管理员可查看全部；登录用户可看到自己的全部文章（含草稿）；未登录只能看已发布
+	if isAdmin(c) {
+		if query.Status != "" {
+			db = db.Where("status = ?", query.Status)
+		}
+	} else if userId, exists := c.Get("userID"); exists {
+		// 登录用户：只看自己的，不限状态（后台管理需要看到草稿）
+		db = db.Where("author_id = ?", userId)
+	} else {
+		// 未登录：只看已发布
 		db = db.Where("status = ?", "published")
-	} else if query.Status != "" {
-		db = db.Where("status = ?", query.Status)
 	}
 
 	if query.CategoryID > 0 {
 		db = db.Where("category_id = ?", query.CategoryID)
 	}
 
-	userId, exists := c.Get("userID")
-	if exists {
-		db = db.Where("author_id = ?", userId)
-	}
-
 	if query.TagID > 0 {
 		db = db.Joins("JOIN post_tags ON post_tags.post_id = posts.id").
 			Where("post_tags.tag_id = ?", query.TagID)
@@ -141,9 +142,13 @@ func GetPost(c *gin.Context) {
 		query = query.Where("slug = ?", id)
 	}
 
-	// 非管理员只能查看已发布文章
+	// 非管理员只能查看已发布文章，但可以查看自己的草稿（编辑用）
 	if !isAdmin(c) {
-		query = query.Where("status = ?", "published")
+		if userId, exists := c.Get("userID"); exists {
+			query = query.Where("status = ? OR author_id = ?", "published", userId)
+		} else {
+			query = query.Where("status = ?", "published")
+		}
 	}
 
 	if err := query.First(&post).Error; err != nil {
@@ -176,7 +181,7 @@ func CreatePost(c *gin.Context) {
 		AuthorID:   userID.(uint),
 		CategoryID: req.CategoryID,
 		Status:     req.Status,
-		IsTop:      req.IsTop,
+		IsTop:      req.IsTop && isAdmin(c), // 非管理员不允许置顶
 	}
 
 	if req.Status == "published" {
@@ -216,6 +221,15 @@ func UpdatePost(c *gin.Context) {
 		return
 	}
 
+	// 非管理员只能编辑自己的文章
+	if !isAdmin(c) {
+		userID, _ := c.Get("userID")
+		if post.AuthorID != userID.(uint) {
+			c.JSON(http.StatusForbidden, gin.H{"error": "无权编辑他人的文章"})
+			return
+		}
+	}
+
 	var req UpdatePostRequest
 	if err := c.ShouldBindJSON(&req); err != nil {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
@@ -251,7 +265,10 @@ func UpdatePost(c *gin.Context) {
 		now := time.Now()
 		updates["published_at"] = &now
 	}
-	updates["is_top"] = req.IsTop
+	// 非管理员不允许置顶
+	if isAdmin(c) {
+		updates["is_top"] = req.IsTop
+	}
 
 	// 处理标签
 	if len(req.Tags) > 0 {
@@ -288,6 +305,15 @@ func DeletePost(c *gin.Context) {
 		return
 	}
 
+	// 非管理员只能删除自己的文章
+	if !isAdmin(c) {
+		userID, _ := c.Get("userID")
+		if post.AuthorID != userID.(uint) {
+			c.JSON(http.StatusForbidden, gin.H{"error": "无权删除他人的文章"})
+			return
+		}
+	}
+
 	if err := database.DB.Delete(&post).Error; err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "删除文章失败"})
 		return
diff --git a/handlers/view.go b/handlers/view.go
index 745b6fe..30733bb 100644
--- a/handlers/view.go
+++ b/handlers/view.go
@@ -25,6 +25,16 @@ func loadSidebarData() (categories []models.Category, tags []models.Tag, postCou
 	return
 }
 
+// loginInfo 从上下文提取登录态信息（供侧边栏系统菜单区分已登录/未登录）
+func loginInfo(c *gin.Context) (isLoggedIn bool, loginName string) {
+	if _, ok := c.Get("userID"); !ok {
+		return false, ""
+	}
+	name, _ := c.Get("username")
+	loginName, _ = name.(string)
+	return true, loginName
+}
+
 // 首页
 type IndexData struct {
 	Title       string
@@ -42,6 +52,9 @@ type IndexData struct {
 	PostCount     int64
 	CategoryCount int64
 	TagCount      int64
+	// 登录态（侧边栏系统菜单用）
+	IsLoggedIn bool
+	LoginName  string
 }
 
 func IndexView(c *gin.Context) {
@@ -129,6 +142,7 @@ func IndexView(c *gin.Context) {
 		CategoryCount: categoryCount,
 		TagCount:      tagCount,
 	}
+	data.IsLoggedIn, data.LoginName = loginInfo(c)
 
 	c.HTML(http.StatusOK, "index", data)
 }
@@ -156,6 +170,9 @@ type PostDetailData struct {
 	PostCount     int64
 	CategoryCount int64
 	TagCount      int64
+	// 登录态（侧边栏系统菜单用）
+	IsLoggedIn bool
+	LoginName  string
 }
 
 func PostView(c *gin.Context) {
@@ -280,6 +297,7 @@ func PostView(c *gin.Context) {
 		CategoryCount: categoryCount,
 		TagCount:      tagCount,
 	}
+	data.IsLoggedIn, data.LoginName = loginInfo(c)
 
 	// 只有当查询成功时才赋值
 	if prevErr == nil {
@@ -307,6 +325,9 @@ type PageDetailData struct {
 	PostCount     int64
 	CategoryCount int64
 	TagCount      int64
+	// 登录态（侧边栏系统菜单用）
+	IsLoggedIn bool
+	LoginName  string
 }
 
 func PageView(c *gin.Context) {
@@ -359,6 +380,7 @@ func PageView(c *gin.Context) {
 		CategoryCount: categoryCount,
 		TagCount:      tagCount,
 	}
+	data.IsLoggedIn, data.LoginName = loginInfo(c)
 
 	c.HTML(http.StatusOK, "page", data)
 }
@@ -464,6 +486,7 @@ func SearchView(c *gin.Context) {
 		CategoryCount: categoryCount,
 		TagCount:      tagCount,
 	}
+	data.IsLoggedIn, data.LoginName = loginInfo(c)
 
 	c.HTML(http.StatusOK, "index", data)
 }
diff --git a/middleware/auth.go b/middleware/auth.go
index 7a92bf4..e69a3b8 100644
--- a/middleware/auth.go
+++ b/middleware/auth.go
@@ -60,22 +60,26 @@ func AdminRequired() gin.HandlerFunc {
 	}
 }
 
-// 可选认证中间件（用于某些既支持游客又支持登录用户的接口）
+// OptionalAuth 可选认证中间件（用于某些既支持游客又支持登录用户的接口/页面）
+// 优先读 Authorization 头，其次回退到 Cookie（服务端渲染的前台页面依赖 Cookie）
 func OptionalAuth() gin.HandlerFunc {
 	return func(c *gin.Context) {
+		tokenString := ""
 		authHeader := c.GetHeader("Authorization")
-		if authHeader == "" {
+		if authHeader != "" {
+			parts := strings.SplitN(authHeader, " ", 2)
+			if len(parts) == 2 && parts[0] == "Bearer" {
+				tokenString = parts[1]
+			}
+		}
+		if tokenString == "" {
+			tokenString, _ = c.Cookie("token")
+		}
+		if tokenString == "" {
 			c.Next()
 			return
 		}
 
-		parts := strings.SplitN(authHeader, " ", 2)
-		if len(parts) != 2 || parts[0] != "Bearer" {
-			c.Next()
-			return
-		}
-
-		tokenString := parts[1]
 		claims := &handlers.Claims{}
 
 		token, err := jwt.ParseWithClaims(tokenString, claims, func(token *jwt.Token) (interface{}, error) {
diff --git a/routers/router.go b/routers/router.go
index b79ccf6..8f6806f 100644
--- a/routers/router.go
+++ b/routers/router.go
@@ -17,16 +17,19 @@ func SetupRoutes(r *gin.Engine, cfg interface{}) {
 
 	// 后台管理（放在前面避免冲突）
 	r.Static("/admin/static", "./static/admin")
-	r.GET("/admin", func(c *gin.Context) {
-		c.File("./static/admin/index.html")
-	})
+	// 独立登录页
+	r.GET("/admin/login", handlers.AdminLoginView)
+	// 后台首页：服务端按登录角色用模板渲染菜单与页面框架
+	r.GET("/admin", handlers.AdminView)
 
-	// 前端页面路由
-	r.GET("/", handlers.IndexView)
-	r.GET("/post/:slug", handlers.PostView)
-	r.GET("/page/:slug", handlers.PageView)
-	r.GET("/search", handlers.SearchView)
+	// 前端页面路由（可选认证：侧边栏根据登录态显示系统菜单）
+	r.GET("/", middleware.OptionalAuth(), handlers.IndexView)
+	r.GET("/post/:slug", middleware.OptionalAuth(), handlers.PostView)
+	r.GET("/page/:slug", middleware.OptionalAuth(), handlers.PageView)
+	r.GET("/search", middleware.OptionalAuth(), handlers.SearchView)
 	r.POST("/comment", handlers.SubmitComment)
+	// 前台退出登录：清除 Cookie 后回首页
+	r.GET("/logout", handlers.WebLogout)
 
 	// API 路由组
 	api := r.Group("/api")
@@ -47,6 +50,7 @@ func SetupRoutes(r *gin.Engine, cfg interface{}) {
 
 		// 用户认证
 		api.POST("/auth/login", handlers.Login)
+		api.POST("/auth/logout", handlers.Logout)
 
 		// 需要登录的 API
 		auth := api.Group("/")
@@ -55,6 +59,23 @@ func SetupRoutes(r *gin.Engine, cfg interface{}) {
 			auth.GET("/auth/me", handlers.GetCurrentUser)
 			auth.PUT("/auth/me", handlers.UpdateUser)
 			auth.PUT("/auth/password", handlers.ChangePassword)
+
+			// 文章管理（所有登录用户可新建文章，修改/删除自己的文章）
+			auth.POST("/posts", handlers.CreatePost)
+			auth.PUT("/posts/:id", handlers.UpdatePost)
+			auth.DELETE("/posts/:id", handlers.DeletePost)
+
+			// Markdown 预览（文章编辑器用）
+			auth.POST("/markdown/preview", handlers.PreviewMarkdown)
+
+			// 文件上传（文章编辑器封面图等）
+			auth.POST("/upload", handlers.UploadImage)
+
+			// 评论管理（登录用户管理自己文章的评论）
+			auth.GET("/my/comments", handlers.GetComments)
+			auth.PUT("/my/comments/:id/approve", handlers.ApproveComment)
+			auth.PUT("/my/comments/:id/spam", handlers.MarkSpamComment)
+			auth.DELETE("/my/comments/:id", handlers.DeleteComment)
 		}
 
 		// 主题管理（可选认证）
@@ -70,13 +91,7 @@ func SetupRoutes(r *gin.Engine, cfg interface{}) {
 		admin := api.Group("/admin")
 		admin.Use(middleware.JWTAuth(), middleware.AdminRequired())
 		{
-			// 文章管理
-			admin.POST("/posts", handlers.CreatePost)
-			admin.PUT("/posts/:id", handlers.UpdatePost)
-			admin.DELETE("/posts/:id", handlers.DeletePost)
-
-			// Markdown 预览（文章编辑器用）
-			admin.POST("/markdown/preview", handlers.PreviewMarkdown)
+			// Markdown 预览（文章编辑器用）已移至登录组
 
 			// 分类管理
 			admin.POST("/categories", handlers.CreateCategory)
diff --git a/static/admin/app.js b/static/admin/app.js
index 52a6e92..4ef2db8 100644
--- a/static/admin/app.js
+++ b/static/admin/app.js
@@ -4,25 +4,34 @@ const API_BASE = '/api';
 // 当前登录用户
 let currentUser = null;
 
-// 页面初始化
+// 跳转到独立登录页
+function goLogin() {
+    localStorage.removeItem('token');
+    localStorage.removeItem('user');
+    localStorage.removeItem('menus');
+    currentUser = null;
+    location.replace('/admin/login');
+}
+
+// 页面初始化（登录已移至独立页面 /admin/login，菜单与页面框架由服务端模板按权限渲染）
 document.addEventListener('DOMContentLoaded', () => {
     const token = localStorage.getItem('token');
-    if (token) {
-        currentUser = JSON.parse(localStorage.getItem('user') || '{}');
-        document.getElementById('username').textContent = currentUser.nickname || currentUser.username;
-        showSidebar();
-        showPage('dashboard');
-    } else {
-        // 未登录状态：隐藏所有页面，只显示登录页
-        document.querySelectorAll('.page').forEach(p => p.classList.add('hidden'));
-        const loginPage = document.getElementById('login-page');
-        if (loginPage) {
-            loginPage.classList.remove('hidden');
-        }
-        hideSidebar();
+    if (!token) {
+        goLogin();
+        return;
+    }
+    currentUser = JSON.parse(localStorage.getItem('user') || '{}');
+    const usernameEl = document.getElementById('username');
+    if (usernameEl) {
+        usernameEl.textContent = currentUser.nickname || currentUser.username;
     }
 
-    // 绑定菜单点击事件
+    // 向服务端校验登录态与角色（不信任本地缓存，防止残留会话导致权限误判）
+    refreshCurrentUser();
+
+    showPage('dashboard');
+
+    // 绑定菜单点击事件（菜单由服务端模板渲染，只包含有权限的页面）
     document.querySelectorAll('.menu-item').forEach(item => {
         item.addEventListener('click', (e) => {
             e.preventDefault();
@@ -43,20 +52,17 @@ document.addEventListener('DOMContentLoaded', () => {
         });
     });
 
-    // 登录表单
-    document.getElementById('login-form').addEventListener('submit', handleLogin);
-    
-    // 文章表单
-    document.getElementById('post-form').addEventListener('submit', handlePostSubmit);
-    
-    // 模态框表单
-    document.getElementById('modal-form').addEventListener('submit', handleModalSubmit);
+    // 退出登录
+    const logoutBtn = document.getElementById('logout-btn');
+    if (logoutBtn) {
+        logoutBtn.addEventListener('click', logout);
+    }
 
-    // 用户表单
-    document.getElementById('user-form').addEventListener('submit', handleUserSubmit);
-
-    // 基础设置表单
-    document.getElementById('settings-form').addEventListener('submit', handleSettingsSubmit);
+    // 各表单绑定（页面未渲染时对应元素不存在，跳过绑定）
+    bindForm('post-form', handlePostSubmit);
+    bindForm('modal-form', handleModalSubmit);
+    bindForm('user-form', handleUserSubmit);
+    bindForm('settings-form', handleSettingsSubmit);
 
     // 封面图上传
     const coverFileInput = document.getElementById('post-cover-file');
@@ -71,33 +77,50 @@ document.addEventListener('DOMContentLoaded', () => {
     }
 });
 
-// 显示登录页
-function showLogin() {
-    hideSidebar();
-    document.querySelectorAll('.page').forEach(p => p.classList.add('hidden'));
-    const loginPage = document.getElementById('login-page');
-    if (loginPage) {
-        loginPage.classList.remove('hidden');
+// 安全绑定表单提交（元素不存在时忽略）
+function bindForm(formId, handler) {
+    const form = document.getElementById(formId);
+    if (form) {
+        form.addEventListener('submit', handler);
     }
 }
 
-// 显示侧边栏
-function showSidebar() {
-    document.querySelector('.sidebar').style.display = 'flex';
+// 向服务端获取权威用户信息，校验 token 与角色
+async function refreshCurrentUser() {
+    try {
+        const res = await fetch(`${API_BASE}/auth/me`, { headers: getHeaders() });
+        if (!res.ok) {
+            goLogin();
+            return;
+        }
+        const data = await res.json();
+        const fresh = data.data || {};
+        // 角色发生变化时重新加载页面，让服务端按新角色重新渲染菜单
+        if (currentUser && fresh.role && currentUser.role !== fresh.role) {
+            localStorage.setItem('user', JSON.stringify(fresh));
+            location.reload();
+            return;
+        }
+        currentUser = Object.assign({}, currentUser, fresh);
+        localStorage.setItem('user', JSON.stringify(currentUser));
+        const usernameEl = document.getElementById('username');
+        if (usernameEl) {
+            usernameEl.textContent = currentUser.nickname || currentUser.username;
+        }
+    } catch (err) {
+        console.error('校验登录态失败:', err);
+    }
 }
 
-// 隐藏侧边栏
-function hideSidebar() {
-    document.querySelector('.sidebar').style.display = 'none';
-}
-
-// 切换页面
+// 切换页面（页面框架由服务端模板渲染，未渲染的页面不存在也不加载数据）
 function showPage(pageName) {
     document.querySelectorAll('.page').forEach(p => p.classList.add('hidden'));
     const targetPage = document.getElementById(pageName + '-page');
-    if (targetPage) {
-        targetPage.classList.remove('hidden');
+    if (!targetPage) {
+        alert('无权访问该页面');
+        return;
     }
+    targetPage.classList.remove('hidden');
     
     // 加载对应数据
     switch(pageName) {
@@ -137,41 +160,14 @@ function showPage(pageName) {
     }
 }
 
-// 登录
-async function handleLogin(e) {
-    e.preventDefault();
-    const username = document.getElementById('login-username').value;
-    const password = document.getElementById('login-password').value;
-    
+// 退出登录：通知服务端清除 Cookie 后跳转登录页
+async function logout() {
     try {
-        const res = await fetch(`${API_BASE}/auth/login`, {
-            method: 'POST',
-            headers: { 'Content-Type': 'application/json' },
-            body: JSON.stringify({ username, password })
-        });
-        
-        const data = await res.json();
-        if (res.ok) {
-            localStorage.setItem('token', data.token);
-            localStorage.setItem('user', JSON.stringify(data.user));
-            currentUser = data.user;
-            document.getElementById('username').textContent = data.user.nickname || data.user.username;
-            showSidebar();
-            showPage('dashboard');
-        } else {
-            alert(data.error || '登录失败');
-        }
+        await fetch(`${API_BASE}/auth/logout`, { method: 'POST', headers: getHeaders() });
     } catch (err) {
-        alert('网络错误');
+        // 忽略网络异常，本地登出继续执行
     }
-}
-
-// 退出登录
-function logout() {
-    localStorage.removeItem('token');
-    localStorage.removeItem('user');
-    currentUser = null;
-    showLogin();
+    goLogin();
 }
 
 // 获取请求头
@@ -189,7 +185,7 @@ async function loadDashboard() {
             fetch(`${API_BASE}/posts?page_size=1`).then(r => r.json()),
             fetch(`${API_BASE}/categories`).then(r => r.json()),
             fetch(`${API_BASE}/tags`).then(r => r.json()),
-            fetch(`${API_BASE}/comments?status=pending`).then(r => r.json())
+            fetch(`${commentsAPIBase()}/comments?status=pending`).then(r => r.json())
         ]);
         
         document.getElementById('stat-posts').textContent = posts.total || 0;
@@ -201,16 +197,26 @@ async function loadDashboard() {
     }
 }
 
-// 加载文章列表
-async function loadPosts() {
+// 文章列表分页状态（每页 15 条）
+const POSTS_PAGE_SIZE = 15;
+let postsCurrentPage = 1;
+
+// 加载文章列表（分页）
+async function loadPosts(page = postsCurrentPage) {
     try {
-        const res = await fetch(`${API_BASE}/posts?page_size=100`, { headers: getHeaders() });
+        const res = await fetch(`${API_BASE}/posts?page=${page}&page_size=${POSTS_PAGE_SIZE}`, { headers: getHeaders() });
         const data = await res.json();
-        
+
+        const list = data.data || [];
+        const total = data.total || 0;
+        const totalPages = Math.max(1, Math.ceil(total / POSTS_PAGE_SIZE));
+        postsCurrentPage = Math.min(Math.max(1, data.page || page), totalPages);
+
         const tbody = document.getElementById('posts-list');
-        tbody.innerHTML = data.data?.map(post => `
+        tbody.innerHTML = list.map(post => `
             <tr>
                 <td>${post.title}</td>
+                <td>${post.author?.nickname || post.author?.username || '-'}</td>
                 <td>${post.category?.name || '-'}</td>
                 <td><span class="status-badge status-${post.status}">${getStatusText(post.status)}</span></td>
                 <td>${post.views}</td>
@@ -221,12 +227,29 @@ async function loadPosts() {
                     <button class="btn-danger" onclick="deletePost(${post.id})">删除</button>
                 </td>
             </tr>
-        `).join('') || '<tr><td colspan="6" style="text-align:center">暂无文章</td></tr>';
+        `).join('') || '<tr><td colspan="7" style="text-align:center">暂无文章</td></tr>';
+
+        renderPostsPagination(total, totalPages);
     } catch (err) {
         console.error('加载文章失败:', err);
     }
 }
 
+// 渲染文章列表分页条
+function renderPostsPagination(total, totalPages) {
+    const box = document.getElementById('posts-pagination');
+    if (!box) return;
+
+    const buttons = [];
+    buttons.push(`<button ${postsCurrentPage <= 1 ? 'disabled' : ''} onclick="loadPosts(${postsCurrentPage - 1})">上一页</button>`);
+    for (let i = 1; i <= totalPages; i++) {
+        buttons.push(`<button class="${i === postsCurrentPage ? 'active' : ''}" onclick="loadPosts(${i})">${i}</button>`);
+    }
+    buttons.push(`<button ${postsCurrentPage >= totalPages ? 'disabled' : ''} onclick="loadPosts(${postsCurrentPage + 1})">下一页</button>`);
+
+    box.innerHTML = buttons.join('') + `<span class="pagination-info">共 ${total} 条，第 ${postsCurrentPage}/${totalPages} 页</span>`;
+}
+
 // 显示文章表单
 async function showPostForm(isEdit = false) {
     document.getElementById('post-form-title').textContent = isEdit ? '编辑文章' : '新建文章';
@@ -235,6 +258,12 @@ async function showPostForm(isEdit = false) {
     setCover('');
     mdShowEdit();
     
+    // 非管理员隐藏置顶选项
+    const istopGroup = document.getElementById('post-istop')?.closest('.form-group');
+    if (istopGroup) {
+        istopGroup.style.display = (currentUser && currentUser.role === 'admin') ? '' : 'none';
+    }
+
     // 加载分类选项
     const res = await fetch(`${API_BASE}/categories`);
     const data = await res.json();
@@ -296,7 +325,7 @@ async function handlePostSubmit(e) {
     };
     
     try {
-        const url = id ? `${API_BASE}/admin/posts/${id}` : `${API_BASE}/admin/posts`;
+        const url = id ? `${API_BASE}/posts/${id}` : `${API_BASE}/posts`;
         const method = id ? 'PUT' : 'POST';
         
         const res = await fetch(url, {
@@ -376,7 +405,7 @@ async function mdShowPreview() {
     preview.classList.remove('hidden');
     preview.innerHTML = '<p class="md-preview-tip">渲染中...</p>';
     try {
-        const res = await fetch(`${API_BASE}/admin/markdown/preview`, {
+        const res = await fetch(`${API_BASE}/markdown/preview`, {
             method: 'POST',
             headers: getHeaders(),
             body: JSON.stringify({ content: ta.value })
@@ -394,7 +423,7 @@ async function changePostStatus(id, status) {
     if (!confirm(`确定要${actionText}这篇文章吗？`)) return;
     
     try {
-        const res = await fetch(`${API_BASE}/admin/posts/${id}`, {
+        const res = await fetch(`${API_BASE}/posts/${id}`, {
             method: 'PUT',
             headers: getHeaders(),
             body: JSON.stringify({ status })
@@ -416,7 +445,7 @@ async function deletePost(id) {
     if (!confirm('确定要删除这篇文章吗？')) return;
     
     try {
-        const res = await fetch(`${API_BASE}/admin/posts/${id}`, {
+        const res = await fetch(`${API_BASE}/posts/${id}`, {
             method: 'DELETE',
             headers: getHeaders()
         });
@@ -501,10 +530,15 @@ async function loadPages() {
     }
 }
 
+// 评论管理 API 基础路径（管理员走 admin 组，普通用户走 my 组）
+function commentsAPIBase() {
+    return (currentUser && currentUser.role === 'admin') ? `${API_BASE}/admin` : `${API_BASE}/my`;
+}
+
 // 加载评论（postId 为空时加载全部）
 async function loadComments(postId = '') {
     try {
-        const url = postId ? `${API_BASE}/admin/comments?post_id=${postId}` : `${API_BASE}/admin/comments`;
+        const url = postId ? `${commentsAPIBase()}/comments?post_id=${postId}` : `${commentsAPIBase()}/comments`;
         const res = await fetch(url, { headers: getHeaders() });
         const data = await res.json();
 
@@ -708,7 +742,7 @@ async function deletePage(id) {
 
 // 通过评论
 async function approveComment(id) {
-    await fetch(`${API_BASE}/admin/comments/${id}/approve`, {
+    await fetch(`${commentsAPIBase()}/comments/${id}/approve`, {
         method: 'PUT',
         headers: getHeaders()
     });
@@ -718,7 +752,7 @@ async function approveComment(id) {
 // 删除评论
 async function deleteComment(id) {
     if (!confirm('确定要删除这条评论吗？')) return;
-    await fetch(`${API_BASE}/admin/comments/${id}`, {
+    await fetch(`${commentsAPIBase()}/comments/${id}`, {
         method: 'DELETE',
         headers: getHeaders()
     });
@@ -1421,7 +1455,7 @@ async function uploadImageFile(file) {
     const formData = new FormData();
     formData.append('file', file);
 
-    const res = await fetch(`${API_BASE}/admin/upload`, {
+    const res = await fetch(`${API_BASE}/upload`, {
         method: 'POST',
         // 注意：上传 FormData 时不能手动设置 Content-Type，浏览器会自动处理 boundary
         headers: { 'Authorization': 'Bearer ' + localStorage.getItem('token') },
diff --git a/static/admin/index.html b/static/admin/index.html
index b547487..cb25e13 100644
--- a/static/admin/index.html
+++ b/static/admin/index.html
@@ -1,11 +1,11 @@
-<!DOCTYPE html>
+{{define "admin_index"}}<!DOCTYPE html>
 <html lang="zh-CN">
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>后台管理 - GoBlog</title>
     <link rel="icon" href="/static/images/favicon.ico" type="image/x-icon">
-    <link rel="stylesheet" href="/static/admin/style.css?v=2">
+    <link rel="stylesheet" href="/static/admin/style.css?v=3">
 </head>
 <body>
     <div id="app">
@@ -15,56 +15,49 @@
                 <p>后台管理</p>
             </div>
             <nav class="menu">
-                <a href="#dashboard" class="menu-item active" data-page="dashboard">仪表盘</a>
-
+                {{range .Menus}}{{if eq .Group ""}}{{range $i, $item := .Items}}<a href="#{{$item.Key}}" class="menu-item{{if eq $item.Key "dashboard"}} active{{end}}" data-page="{{$item.Key}}">{{$item.Name}}</a>
+                {{end}}{{else}}
                 <div class="menu-group open">
-                    <button class="menu-group-header" type="button">内容管理</button>
+                    <button class="menu-group-header" type="button">{{.Group}}</button>
                     <div class="menu-sub">
-                        <a href="#posts" class="menu-item" data-page="posts">文章管理</a>
-                        <a href="#categories" class="menu-item" data-page="categories">分类管理</a>
-                        <a href="#tags" class="menu-item" data-page="tags">标签管理</a>
-                        <a href="#pages" class="menu-item" data-page="pages">页面管理</a>
-                        <a href="#comments" class="menu-item" data-page="comments">评论管理</a>
-                    </div>
-                </div>
-
-                <div class="menu-group open">
-                    <button class="menu-group-header" type="button">系统管理</button>
-                    <div class="menu-sub">
-                        <a href="#users" class="menu-item" data-page="users">用户管理</a>
-                        <a href="#files" class="menu-item" data-page="files">文件管理</a>
-                        <a href="#themes" class="menu-item" data-page="themes">主题管理</a>
-                        <a href="#settings" class="menu-item" data-page="settings">基础设置</a>
+                        {{range .Items}}<a href="#{{.Key}}" class="menu-item" data-page="{{.Key}}">{{.Name}}</a>
+                        {{end}}
                     </div>
                 </div>
+                {{end}}{{end}}
             </nav>
             <div class="user-info">
-                <span id="username">Admin</span>
-                <button onclick="logout()">退出</button>
+                <span id="username">{{.DisplayName}}</span>
+                <button id="logout-btn">退出</button>
             </div>
         </aside>
 
         <main class="main-content">
-            <!-- 登录页面 -->
-            <div id="login-page" class="page">
-                <div class="login-box">
-                    <h2>管理员登录</h2>
-                    <form id="login-form">
-                        <div class="form-group">
-                            <label>用户名</label>
-                            <input type="text" id="login-username" required>
-                        </div>
-                        <div class="form-group">
-                            <label>密码</label>
-                            <input type="password" id="login-password" required>
-                        </div>
-                        <button type="submit">登录</button>
-                    </form>
-                </div>
-            </div>
+            {{if index .PageSet "dashboard"}}{{template "admin_page_dashboard" .}}{{end}}
+            {{if index .PageSet "posts"}}{{template "admin_page_posts" .}}{{template "admin_page_post_form" .}}{{end}}
+            {{if index .PageSet "categories"}}{{template "admin_page_categories" .}}{{end}}
+            {{if index .PageSet "tags"}}{{template "admin_page_tags" .}}{{end}}
+            {{if index .PageSet "pages"}}{{template "admin_page_pages" .}}{{end}}
+            {{if index .PageSet "comments"}}{{template "admin_page_comments" .}}{{end}}
+            {{if index .PageSet "users"}}{{template "admin_page_users" .}}{{end}}
+            {{if index .PageSet "settings"}}{{template "admin_page_settings" .}}{{end}}
+            {{if index .PageSet "files"}}{{template "admin_page_files" .}}{{end}}
+            {{if index .PageSet "themes"}}{{template "admin_page_themes" .}}{{template "admin_page_theme_editor" .}}{{end}}
+        </main>
+    </div>
 
+    {{if or (index .PageSet "categories") (index .PageSet "tags") (index .PageSet "pages")}}{{template "admin_modal_common" .}}{{end}}
+    {{if index .PageSet "users"}}{{template "admin_modal_user" .}}{{end}}
+    {{if index .PageSet "themes"}}{{template "admin_modal_theme" .}}{{end}}
+
+    <script src="/static/admin/app.js?v=19"></script>
+</body>
+</html>
+{{end}}
+
+{{define "admin_page_dashboard"}}
             <!-- 仪表盘 -->
-            <div id="dashboard-page" class="page hidden">
+            <div id="dashboard-page" class="page">
                 <h1>仪表盘</h1>
                 <div class="stats-grid">
                     <div class="stat-card">
@@ -85,7 +78,9 @@
                     </div>
                 </div>
             </div>
+{{end}}
 
+{{define "admin_page_posts"}}
             <!-- 文章管理 -->
             <div id="posts-page" class="page hidden">
                 <div class="page-header">
@@ -96,6 +91,7 @@
                     <thead>
                         <tr>
                             <th>标题</th>
+                            <th>作者</th>
                             <th>分类</th>
                             <th>状态</th>
                             <th>浏览量</th>
@@ -105,8 +101,11 @@
                     </thead>
                     <tbody id="posts-list"></tbody>
                 </table>
+                <div id="posts-pagination" class="pagination"></div>
             </div>
+{{end}}
 
+{{define "admin_page_post_form"}}
             <!-- 文章表单 -->
             <div id="post-form-page" class="page hidden">
                 <div class="page-header">
@@ -191,7 +190,9 @@
                     <button type="submit" class="btn-primary" onclick="mdShowEdit()">保存</button>
                 </form>
             </div>
+{{end}}
 
+{{define "admin_page_categories"}}
             <!-- 分类管理 -->
             <div id="categories-page" class="page hidden">
                 <div class="page-header">
@@ -210,7 +211,9 @@
                     <tbody id="categories-list"></tbody>
                 </table>
             </div>
+{{end}}
 
+{{define "admin_page_tags"}}
             <!-- 标签管理 -->
             <div id="tags-page" class="page hidden">
                 <div class="page-header">
@@ -229,7 +232,9 @@
                     <tbody id="tags-list"></tbody>
                 </table>
             </div>
+{{end}}
 
+{{define "admin_page_pages"}}
             <!-- 页面管理 -->
             <div id="pages-page" class="page hidden">
                 <div class="page-header">
@@ -249,7 +254,9 @@
                     <tbody id="pages-list"></tbody>
                 </table>
             </div>
+{{end}}
 
+{{define "admin_page_comments"}}
             <!-- 评论管理 -->
             <div id="comments-page" class="page hidden">
                 <div class="page-header">
@@ -272,7 +279,9 @@
                     <tbody id="comments-list"></tbody>
                 </table>
             </div>
+{{end}}
 
+{{define "admin_page_users"}}
             <!-- 用户管理 -->
             <div id="users-page" class="page hidden">
                 <div class="page-header">
@@ -294,9 +303,11 @@
                     <tbody id="users-list"></tbody>
                 </table>
             </div>
+{{end}}
 
+{{define "admin_page_settings"}}
             <!-- 基础设置 -->
-<div id="settings-page" class="page hidden">
+            <div id="settings-page" class="page hidden">
                 <div class="page-header">
                     <h1>基础设置</h1>
                 </div>
@@ -322,7 +333,9 @@
                     <button type="submit" class="btn-primary">保存设置</button>
                 </form>
             </div>
+{{end}}
 
+{{define "admin_page_files"}}
             <!-- 文件管理 -->
             <div id="files-page" class="page hidden">
                 <div class="page-header">
@@ -335,7 +348,9 @@
                 <p class="upload-hint">支持 jpg/png/gif/webp 格式，单个文件最大 5MB</p>
                 <div class="file-grid" id="file-grid"></div>
             </div>
+{{end}}
 
+{{define "admin_page_themes"}}
             <!-- 主题管理 -->
             <div id="themes-page" class="page hidden">
                 <div class="page-header">
@@ -356,7 +371,9 @@
                     <!-- 主题列表将动态加载 -->
                 </div>
             </div>
+{{end}}
 
+{{define "admin_page_theme_editor"}}
             <!-- 主题编辑器 -->
             <div id="theme-editor-page" class="page hidden">
                 <div class="page-header">
@@ -379,9 +396,9 @@
                     </div>
                 </div>
             </div>
-        </main>
-    </div>
+{{end}}
 
+{{define "admin_modal_common"}}
     <!-- 分类/标签/页面 表单弹窗 -->
     <div id="modal" class="modal hidden">
         <div class="modal-content">
@@ -407,7 +424,9 @@
             </form>
         </div>
     </div>
+{{end}}
 
+{{define "admin_modal_user"}}
     <!-- 用户表单弹窗 -->
     <div id="user-modal" class="modal hidden">
         <div class="modal-content">
@@ -453,7 +472,9 @@
             </form>
         </div>
     </div>
+{{end}}
 
+{{define "admin_modal_theme"}}
     <!-- 创建主题弹窗 -->
     <div id="theme-modal" class="modal hidden">
         <div class="modal-content modal-large">
@@ -477,7 +498,4 @@
             </form>
         </div>
     </div>
-
-    <script src="/static/admin/app.js?v=16"></script>
-</body>
-</html>
+{{end}}
diff --git a/static/admin/login.html b/static/admin/login.html
new file mode 100644
index 0000000..4b87c4a
--- /dev/null
+++ b/static/admin/login.html
@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>登录 - GoBlog 后台管理</title>
+    <link rel="icon" href="/static/images/favicon.ico" type="image/x-icon">
+    <link rel="stylesheet" href="/static/admin/style.css?v=3">
+</head>
+<body>
+    <div id="login-page">
+        <div class="login-box">
+            <h2>管理员登录</h2>
+            <form id="login-form">
+                <div class="form-group">
+                    <label>用户名</label>
+                    <input type="text" id="login-username" required autocomplete="username">
+                </div>
+                <div class="form-group">
+                    <label>密码</label>
+                    <input type="password" id="login-password" required autocomplete="current-password">
+                </div>
+                <div id="login-error" class="login-error hidden"></div>
+                <button type="submit" id="login-submit">登录</button>
+            </form>
+        </div>
+    </div>
+
+    <script>
+        // 已登录则直接进入后台
+        if (localStorage.getItem('token')) {
+            location.replace('/admin');
+        }
+
+        function showError(msg) {
+            const el = document.getElementById('login-error');
+            el.textContent = msg;
+            el.classList.remove('hidden');
+        }
+
+        document.getElementById('login-form').addEventListener('submit', async (e) => {
+            e.preventDefault();
+            const btn = document.getElementById('login-submit');
+            btn.disabled = true;
+            btn.textContent = '登录中...';
+
+            const username = document.getElementById('login-username').value;
+            const password = document.getElementById('login-password').value;
+
+            try {
+                const res = await fetch('/api/auth/login', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({ username, password })
+                });
+                const data = await res.json();
+                if (res.ok) {
+                    localStorage.setItem('token', data.token);
+                    localStorage.setItem('user', JSON.stringify(data.user));
+                    // 菜单由登录接口返回，缓存供前端参考（页面菜单以服务端模板渲染为准）
+                    localStorage.setItem('menus', JSON.stringify(data.menus || []));
+                    location.href = '/admin';
+                } else {
+                    showError(data.error || '登录失败');
+                    btn.disabled = false;
+                    btn.textContent = '登录';
+                }
+            } catch (err) {
+                showError('网络错误，请稍后重试');
+                btn.disabled = false;
+                btn.textContent = '登录';
+            }
+        });
+    </script>
+</body>
+</html>
diff --git a/static/admin/style.css b/static/admin/style.css
index 3f9e8b0..49a12af 100644
--- a/static/admin/style.css
+++ b/static/admin/style.css
@@ -313,6 +313,60 @@ body {
     font-size: 16px;
 }
 
+.login-box button:disabled {
+    opacity: 0.6;
+    cursor: not-allowed;
+}
+
+.login-error {
+    color: #e74c3c;
+    background: #fdecea;
+    border-radius: 4px;
+    padding: 8px 12px;
+    margin-bottom: 16px;
+    font-size: 14px;
+}
+
+/* 列表分页条 */
+.pagination {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    flex-wrap: wrap;
+    margin-top: 16px;
+}
+
+.pagination button {
+    padding: 6px 12px;
+    border: 1px solid #ddd;
+    background: #fff;
+    border-radius: 4px;
+    cursor: pointer;
+    color: #333;
+}
+
+.pagination button:hover:not(:disabled):not(.active) {
+    border-color: #3498db;
+    color: #3498db;
+}
+
+.pagination button.active {
+    background: #3498db;
+    border-color: #3498db;
+    color: #fff;
+}
+
+.pagination button:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+.pagination .pagination-info {
+    margin-left: auto;
+    color: #888;
+    font-size: 13px;
+}
+
 /* 弹窗 */
 .modal {
     position: fixed;
diff --git a/templates/default/sidebar.html b/templates/default/sidebar.html
index fb0b4cb..31e37f9 100644
--- a/templates/default/sidebar.html
+++ b/templates/default/sidebar.html
@@ -61,16 +61,22 @@
     </div>
     {{end}}
 
-    <!-- 系统菜单 -->
+    <!-- 系统菜单（根据登录态区分：已登录显示进入后台/退出登录，未登录显示用户登录） -->
     <div class="sidebar-widget">
         <h3 class="widget-title">⚙️ 系统</h3>
         <ul class="system-menu">
+            {{if .IsLoggedIn}}
             <li class="system-menu-item">
                 <a href="/admin" class="system-menu-link">🔐 进入后台</a>
             </li>
+            <li class="system-menu-item">
+                <a href="/logout" class="system-menu-link">🚪 退出登录{{if .LoginName}}（{{.LoginName}}）{{end}}</a>
+            </li>
+            {{else}}
             <li class="system-menu-item">
                 <a href="/admin/login" class="system-menu-link">👤 用户登录</a>
             </li>
+            {{end}}
         </ul>
     </div>
 </aside>