feat(admin): 侧边栏布局 + 仪表盘 + 全局隐藏滚动条

- 全局隐藏滚动条（web + admin），保留正常滚动
- admin 顶栏改侧边栏导航（仪表盘/文章），响应式移动端抽屉
- 路由重构：首页→仪表盘，文章列表移到 /posts
- 仪表盘页：文章总数/已发布/草稿统计卡片 + 最近更新列表
- 后端 GET /api/admin/stats

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.claude/launch.json

@@ -7,6 +7,13 @@
       "runtimeArgs": ["run", "dev"],
       "cwd": "web",
       "port": 5173
+    },
+    {
+      "name": "admin",
+      "runtimeExecutable": "npm",
+      "runtimeArgs": ["run", "dev"],
+      "cwd": "admin",
+      "port": 5174
     }
   ]
 }

admin/src/App.tsx

@@ -2,6 +2,7 @@ import { Navigate, Outlet, Route, Routes } from 'react-router-dom'
 import { getToken } from '@/api/client'
 import { AdminLayout } from '@/components/admin-layout'
 import LoginPage from '@/pages/login'
+import DashboardPage from '@/pages/dashboard'
 import PostsListPage from '@/pages/posts-list'
 import PostEditPage from '@/pages/post-edit'
 
@@ -16,7 +17,8 @@ export default function App() {
       <Route path="/login" element={<LoginPage />} />
       <Route element={<RequireAuth />}>
         <Route element={<AdminLayout />}>
-          <Route index element={<PostsListPage />} />
+          <Route index element={<DashboardPage />} />
+          <Route path="posts" element={<PostsListPage />} />
           <Route path="posts/new" element={<PostEditPage />} />
           <Route path="posts/:id" element={<PostEditPage />} />
         </Route>

admin/src/api/posts.ts

@@ -61,3 +61,14 @@ export function updatePost(id: string, form: PostForm) {
 export function deletePost(id: string) {
   return request<null>(`/api/admin/posts/${id}`, { method: 'DELETE' })
 }
+
+export interface Stats {
+  total: number
+  published: number
+  draft: number
+  recent: PostListItem[]
+}
+
+export function fetchStats() {
+  return request<Stats>('/api/admin/stats')
+}

admin/src/components/admin-layout.tsx

@@ -1,52 +1,37 @@
-import { Link, Outlet, useNavigate } from 'react-router-dom'
+import { useState } from 'react'
-import { LogOut, Moon, Sun } from 'lucide-react'
+import { Outlet } from 'react-router-dom'
-import { logout } from '@/api/auth'
+import { Menu } from 'lucide-react'
-import { useTheme } from '@/components/theme-provider'
+import { AdminSidebar } from '@/components/admin-sidebar'
 import { LogoMark } from '@/components/logo'
 
 export function AdminLayout() {
-  const navigate = useNavigate()
+  const [open, setOpen] = useState(false)
-  const { resolved, setTheme } = useTheme()
 
   return (
-    <div className="flex min-h-screen flex-col">
+    <div className="min-h-screen">
-      <header className="sticky top-0 z-40 border-b border-hairline bg-ground/85 backdrop-blur">
+      <AdminSidebar open={open} onClose={() => setOpen(false)} />
-        <div className="mx-auto flex h-14 max-w-5xl items-center justify-between px-6">
+
-          <Link to="/" className="flex items-center gap-2.5 font-mono text-[14px] font-semibold">
+      <div className="md:pl-[220px]">
-            <LogoMark size={24} />
+        {/* 移动端顶部条 */}
-            sundynix <em className="not-italic text-accent">admin</em>
+        <header className="sticky top-0 z-30 flex h-14 items-center gap-3 border-b border-hairline bg-ground/85 px-4 backdrop-blur md:hidden">
-          </Link>
+          <button
-          <div className="flex items-center gap-3">
+            type="button"
-            <button
+            onClick={() => setOpen(true)}
-              type="button"
+            aria-label="打开菜单"
-              aria-label={
+            className="text-ink-2"
-                resolved === 'dark' ? '切换到浅色主题' : '切换到深色主题'
+          >
-              }
+            <Menu className="size-5" />
-              onClick={() => setTheme(resolved === 'dark' ? 'light' : 'dark')}
+          </button>
-              className="flex size-8 items-center justify-center rounded-full border border-hairline-strong text-ink-2 transition-colors hover:border-accent hover:text-accent-ink"
+          <span className="flex items-center gap-2 font-mono text-[14px] font-semibold">
-            >
+            <LogoMark size={20} /> sundynix{' '}
-              {resolved === 'dark' ? (
+            <em className="not-italic text-accent">admin</em>
-                <Sun className="size-4" />
+          </span>
-              ) : (
+        </header>
-                <Moon className="size-4" />
+
-              )}
+        <main className="mx-auto w-full max-w-5xl px-6 py-8">
-            </button>
+          <Outlet />
-            <button
+        </main>
-              type="button"
+      </div>
-              onClick={() => {
-                logout()
-                navigate('/login')
-              }}
-              className="flex items-center gap-1.5 rounded-[7px] border border-hairline-strong px-3 py-1.5 text-[13px] text-ink-2 transition-colors hover:border-accent hover:text-accent-ink"
-            >
-              <LogOut className="size-3.5" /> 退出
-            </button>
-          </div>
-        </div>
-      </header>
-      <main className="mx-auto w-full max-w-5xl flex-1 px-6 py-8">
-        <Outlet />
-      </main>
     </div>
   )
 }

admin/src/components/admin-sidebar.tsx

@@ -0,0 +1,109 @@
+import { Link, NavLink, useNavigate } from 'react-router-dom'
+import { FileText, LayoutDashboard, LogOut, Moon, Sun, X } from 'lucide-react'
+import { logout } from '@/api/auth'
+import { useTheme } from '@/components/theme-provider'
+import { LogoMark } from '@/components/logo'
+import { cn } from '@/lib/utils'
+
+const NAV = [
+  { to: '/', label: '仪表盘', icon: LayoutDashboard, end: true },
+  { to: '/posts', label: '文章', icon: FileText, end: false },
+]
+
+interface Props {
+  open: boolean
+  onClose: () => void
+}
+
+export function AdminSidebar({ open, onClose }: Props) {
+  const navigate = useNavigate()
+  const { resolved, setTheme } = useTheme()
+
+  const itemCls = ({ isActive }: { isActive: boolean }) =>
+    cn(
+      'flex items-center gap-3 rounded-lg px-3 py-2.5 text-[14px] transition-colors',
+      isActive
+        ? 'bg-accent-soft font-medium text-accent-ink'
+        : 'text-ink-2 hover:bg-ground hover:text-ink',
+    )
+
+  const bottomBtnCls =
+    'flex w-full items-center gap-3 rounded-lg px-3 py-2.5 text-[14px] text-ink-2 transition-colors hover:bg-ground hover:text-ink'
+
+  return (
+    <>
+      {open && (
+        <div
+          className="fixed inset-0 z-40 bg-black/40 md:hidden"
+          onClick={onClose}
+          aria-hidden="true"
+        />
+      )}
+      <aside
+        className={cn(
+          'fixed inset-y-0 left-0 z-50 flex w-[220px] flex-col border-r border-hairline bg-surface transition-transform md:translate-x-0',
+          open ? 'translate-x-0' : '-translate-x-full',
+        )}
+      >
+        <div className="flex h-16 items-center justify-between border-b border-hairline px-5">
+          <Link
+            to="/"
+            onClick={onClose}
+            className="flex items-center gap-2.5 font-mono text-[14px] font-semibold"
+          >
+            <LogoMark size={24} />
+            sundynix <em className="not-italic text-accent">admin</em>
+          </Link>
+          <button
+            type="button"
+            onClick={onClose}
+            aria-label="关闭菜单"
+            className="text-ink-2 md:hidden"
+          >
+            <X className="size-5" />
+          </button>
+        </div>
+
+        <nav className="flex-1 space-y-1 px-3 py-4">
+          {NAV.map((item) => (
+            <NavLink
+              key={item.to}
+              to={item.to}
+              end={item.end}
+              onClick={onClose}
+              className={itemCls}
+            >
+              <item.icon className="size-[18px]" />
+              {item.label}
+            </NavLink>
+          ))}
+        </nav>
+
+        <div className="space-y-1 border-t border-hairline p-3">
+          <button
+            type="button"
+            onClick={() => setTheme(resolved === 'dark' ? 'light' : 'dark')}
+            className={bottomBtnCls}
+          >
+            {resolved === 'dark' ? (
+              <Sun className="size-[18px]" />
+            ) : (
+              <Moon className="size-[18px]" />
+            )}
+            {resolved === 'dark' ? '浅色模式' : '深色模式'}
+          </button>
+          <button
+            type="button"
+            onClick={() => {
+              logout()
+              navigate('/login')
+            }}
+            className={bottomBtnCls}
+          >
+            <LogOut className="size-[18px]" /> 退出登录
+          </button>
+        </div>
+      </aside>
+    </>
+  )
+}

admin/src/index.css

@@ -71,3 +71,14 @@ body {
   background: var(--accent-soft);
   color: var(--accent-ink);
 }
+
+/* 全局隐藏滚动条（保留滚动功能） */
+* {
+  scrollbar-width: none;
+  -ms-overflow-style: none;
+}
+*::-webkit-scrollbar {
+  width: 0;
+  height: 0;
+  display: none;
+}

admin/src/pages/dashboard.tsx

@@ -0,0 +1,114 @@
+import { useEffect, useState } from 'react'
+import { Link } from 'react-router-dom'
+import { CheckCircle2, FileEdit, FileText, Plus } from 'lucide-react'
+import { fetchStats, type Stats } from '@/api/posts'
+
+export default function DashboardPage() {
+  const [stats, setStats] = useState<Stats | null>(null)
+  const [error, setError] = useState('')
+
+  useEffect(() => {
+    let cancelled = false
+    fetchStats()
+      .then((s) => {
+        if (!cancelled) setStats(s)
+      })
+      .catch((e: Error) => {
+        if (!cancelled) setError(e.message)
+      })
+    return () => {
+      cancelled = true
+    }
+  }, [])
+
+  const cards = [
+    { label: '文章总数', value: stats?.total, icon: FileText },
+    { label: '已发布', value: stats?.published, icon: CheckCircle2 },
+    { label: '草稿', value: stats?.draft, icon: FileEdit },
+  ]
+
+  return (
+    <div>
+      <div className="mb-6 flex items-center justify-between gap-3">
+        <div>
+          <h1 className="text-[22px] font-[650] tracking-[-0.01em]">仪表盘</h1>
+          <p className="mt-1 text-[13.5px] text-ink-2">内容概览</p>
+        </div>
+        <Link
+          to="/posts/new"
+          className="flex shrink-0 items-center gap-1.5 rounded-lg bg-accent px-4 py-2 text-[13.5px] font-medium text-ground transition-opacity hover:opacity-90"
+        >
+          <Plus className="size-4" /> 新建文章
+        </Link>
+      </div>
+
+      {error && (
+        <p className="mb-4 rounded-lg border border-hairline bg-surface px-4 py-3 text-[13.5px] text-ink-2">
+          {error}
+        </p>
+      )}
+
+      <div className="grid grid-cols-1 gap-4 sm:grid-cols-3">
+        {cards.map((c) => (
+          <div
+            key={c.label}
+            className="rounded-xl border border-hairline bg-surface p-5"
+          >
+            <div className="mb-3 flex items-center justify-between">
+              <span className="text-[13px] text-ink-2">{c.label}</span>
+              <c.icon className="size-[18px] text-ink-3" />
+            </div>
+            <div className="text-[28px] font-[650] tabular-nums">
+              {c.value ?? '—'}
+            </div>
+          </div>
+        ))}
+      </div>
+
+      <div className="mt-8">
+        <div className="mb-3 flex items-center justify-between">
+          <h2 className="text-[15px] font-semibold">最近更新</h2>
+          <Link
+            to="/posts"
+            className="font-mono text-[12.5px] text-accent-ink hover:underline"
+          >
+            全部文章 →
+          </Link>
+        </div>
+        <div className="overflow-hidden rounded-xl border border-hairline bg-surface">
+          {stats && stats.recent.length > 0 ? (
+            stats.recent.map((post) => (
+              <Link
+                key={post.id}
+                to={`/posts/${post.id}`}
+                className="flex items-center justify-between gap-4 border-b border-hairline px-5 py-3.5 transition-colors last:border-b-0 hover:bg-ground"
+              >
+                <span className="truncate text-[14px] font-medium">
+                  {post.title}
+                </span>
+                <span className="flex shrink-0 items-center gap-3">
+                  {post.published_at ? (
+                    <span className="rounded-full bg-accent-soft px-2.5 py-0.5 text-[12px] text-accent-ink">
+                      已发布
+                    </span>
+                  ) : (
+                    <span className="rounded-full bg-code px-2.5 py-0.5 text-[12px] text-ink-3">
+                      草稿
+                    </span>
+                  )}
+                  <span className="font-mono text-[12px] tabular-nums text-ink-3">
+                    {post.updated_at.slice(0, 10)}
+                  </span>
+                </span>
+              </Link>
+            ))
+          ) : (
+            <p className="px-5 py-10 text-center text-[13.5px] text-ink-3">
+              {stats ? '还没有文章，点右上角新建' : '加载中…'}
+            </p>
+          )}
+        </div>
+      </div>
+    </div>
+  )
+}

server/internal/handler/admin_post.go

@@ -156,3 +156,23 @@ func (h *AdminPostHandler) Delete(c *gin.Context) {
 	}
 	resp.OK(c, nil)
 }
+
+// Stats GET /api/admin/stats — 概览统计（总数 / 已发布 / 草稿 / 最近文章）
+func (h *AdminPostHandler) Stats(c *gin.Context) {
+	var total, published int64
+	if err := h.db.Model(&model.Post{}).Count(&total).Error; err != nil {
+		resp.ServerError(c, "查询失败")
+		return
+	}
+	h.db.Model(&model.Post{}).Where("published_at IS NOT NULL").Count(&published)
+
+	var recent []model.PostListItem
+	h.db.Model(&model.Post{}).Order("updated_at DESC").Limit(5).Find(&recent)
+
+	resp.OK(c, gin.H{
+		"total":     total,
+		"published": published,
+		"draft":     total - published,
+		"recent":    recent,
+	})
+}

server/internal/router/router.go

@@ -42,6 +42,7 @@ func New(db *gorm.DB) (*gin.Engine, error) {
 	adminAPI := api.Group("/admin", middleware.Auth())
 	{
 		posts := handler.NewAdminPostHandler(db)
+		adminAPI.GET("/stats", posts.Stats)
 		adminAPI.GET("/posts", posts.List)
 		adminAPI.POST("/posts", posts.Create)
 		adminAPI.GET("/posts/:id", posts.Get)

web/src/index.css

@@ -82,6 +82,17 @@ body {
   color: var(--accent-ink);
 }
 
+/* 全局隐藏滚动条（保留滚动功能） */
+* {
+  scrollbar-width: none;
+  -ms-overflow-style: none;
+}
+*::-webkit-scrollbar {
+  width: 0;
+  height: 0;
+  display: none;
+}
+
 /* 品牌渐变文字（logo 同源：青→蓝→紫），克制使用 */
 .text-brand-gradient {
   background: linear-gradient(