补充普通用户无权限页面

frontend/src/App.js

@@ -3,6 +3,7 @@ import { onMounted, ref } from "vue";
 export function useAppShell() {
   const setupState = ref(null);
   const authenticated = ref(null);
+  const isAdmin = ref(null);
   const bootstrapping = ref(true);
   const error = ref("");
   const routePath = window.location.pathname.replace(/\/+$/, "") || "/";
@@ -20,10 +21,12 @@ export function useAppShell() {
         await checkAuth();
       } else {
         authenticated.value = false;
+        isAdmin.value = false;
       }
     } catch (err) {
       setupState.value = null;
       authenticated.value = null;
+      isAdmin.value = null;
       error.value = err.message || "无法连接核心服务，请先启动 scert serve";
     } finally {
       bootstrapping.value = false;
@@ -36,16 +39,19 @@ export function useAppShell() {
     });
     if (response.status === 401) {
       authenticated.value = false;
+      isAdmin.value = false;
       return;
     }
     const result = await response.json().catch(() => ({}));
     if (!response.ok) throw new Error(result.error || "读取登录状态失败");
     authenticated.value = result.authenticated === true;
+    isAdmin.value = result.is_admin === true || ["super_admin", "admin"].includes(result.role);
   }
 
   function handleInitialized() {
     setupState.value = { ...setupState.value, initialized: true };
     authenticated.value = false;
+    isAdmin.value = false;
   }
 
   onMounted(() => {
@@ -59,6 +65,7 @@ export function useAppShell() {
   return {
     setupState,
     authenticated,
+    isAdmin,
     bootstrapping,
     error,
     routePath,

frontend/src/App.vue

@@ -1,5 +1,6 @@
 <script setup>
 import { useAppShell } from "./App.js";
+import AccessDenied from "./views/AccessDenied/AccessDenied.vue";
 import Dashboard from "./views/Dashboard/Dashboard.vue";
 import Login from "./views/Login/Login.vue";
 import PasswordReset from "./views/PasswordReset/PasswordReset.vue";
@@ -9,6 +10,7 @@ import SuperAdminReset from "./views/SuperAdminReset/SuperAdminReset.vue";
 const {
   setupState,
   authenticated,
+  isAdmin,
   bootstrapping,
   error,
   routePath,
@@ -44,5 +46,9 @@ const {
 
   <Login v-else-if="setupState && authenticated === false" />
 
+  <AccessDenied
+    v-else-if="setupState && authenticated === true && isAdmin === false"
+  />
+
   <Dashboard v-else-if="setupState && authenticated === true" />
 </template>

frontend/src/views/AccessDenied/AccessDenied.css

@@ -0,0 +1,60 @@
+.access-denied-page {
+  min-height: 100vh;
+  display: grid;
+  place-items: center;
+  padding: 32px 20px;
+  background:
+    radial-gradient(circle at top left, rgba(35, 106, 135, 0.18), transparent 42%),
+    #eef4f6;
+}
+
+.access-denied-card {
+  width: min(100%, 560px);
+  padding: 48px;
+  border: 1px solid rgba(31, 65, 78, 0.16);
+  border-radius: 28px;
+  background: rgba(255, 255, 255, 0.94);
+  box-shadow: 0 24px 70px rgba(31, 65, 78, 0.14);
+  text-align: center;
+}
+
+.access-denied-mark {
+  width: 72px;
+  height: 72px;
+  object-fit: contain;
+  margin-bottom: 20px;
+}
+
+.access-denied-card h1 {
+  margin: 12px 0 16px;
+  color: #173746;
+  font-size: clamp(28px, 5vw, 40px);
+  line-height: 1.15;
+}
+
+.access-denied-description {
+  margin: 0 auto 24px;
+  max-width: 440px;
+  color: #60747d;
+  line-height: 1.8;
+}
+
+.access-denied-error {
+  margin: 0 0 18px;
+  padding: 12px 16px;
+  border: 1px solid #e6b8b8;
+  border-radius: 12px;
+  color: #a13b3b;
+  background: #fff4f4;
+}
+
+.access-denied-card .primary-button {
+  min-width: 180px;
+}
+
+@media (max-width: 600px) {
+  .access-denied-card {
+    padding: 32px 24px;
+    border-radius: 22px;
+  }
+}

frontend/src/views/AccessDenied/AccessDenied.js

@@ -0,0 +1,29 @@
+import { ref } from "vue";
+
+export function useAccessDenied() {
+  const loggingOut = ref(false);
+  const error = ref("");
+
+  async function logout() {
+    if (loggingOut.value) return;
+    loggingOut.value = true;
+    error.value = "";
+    try {
+      const response = await fetch("/api/v1/auth/logout", {
+        method: "POST",
+        credentials: "include",
+      });
+      const result = await response.json().catch(() => ({}));
+      if (!response.ok) {
+        throw new Error(result.error || "退出登录失败");
+      }
+      window.location.assign("/login");
+    } catch (err) {
+      error.value = err.message || "退出登录失败";
+    } finally {
+      loggingOut.value = false;
+    }
+  }
+
+  return { loggingOut, error, logout };
+}

frontend/src/views/AccessDenied/AccessDenied.vue

@@ -0,0 +1,26 @@
+<template>
+  <main class="access-denied-page">
+    <section class="access-denied-card" role="status" aria-live="polite">
+      <img class="access-denied-mark" src="/Scert.png" alt="Scert 标志" />
+      <p class="eyebrow">SCERT / 访问控制</p>
+      <h1>当前账号没有管理权限</h1>
+      <p class="access-denied-description">
+        你已经登录成功，但当前账号只能使用普通用户功能，不能访问证书、服务器和系统设置管理页面。
+      </p>
+      <p v-if="error" class="access-denied-error">{{ error }}</p>
+      <button class="primary-button" type="button" :disabled="loggingOut" @click="logout">
+        {{ loggingOut ? "正在退出……" : "退出并切换账号" }}
+      </button>
+    </section>
+  </main>
+</template>
+
+<script setup>
+import { useAccessDenied } from "./AccessDenied.js";
+
+const { loggingOut, error, logout } = useAccessDenied();
+</script>
+
+<style scoped>
+@import "./AccessDenied.css";
+</style>