diff --git a/open-isle-cli/src/components/CommentEditor.vue b/open-isle-cli/src/components/CommentEditor.vue
index f47d3b67a..f9bbe8145 100644
--- a/open-isle-cli/src/components/CommentEditor.vue
+++ b/open-isle-cli/src/components/CommentEditor.vue
@@ -19,7 +19,7 @@
 </template>
 
 <script>
-import { ref, onMounted, computed } from 'vue'
+import { ref, onMounted, computed, watch } from 'vue'
 import Vditor from 'vditor'
 import 'vditor/dist/index.css'
 
@@ -34,13 +34,17 @@ export default {
     loading: {
       type: Boolean,
       default: false
+    },
+    disabled: {
+      type: Boolean,
+      default: false
     }
   },
   setup(props, { emit }) {
     const vditorInstance = ref(null)
     const text = ref('')
 
-    const isDisabled = computed(() => props.loading || !text.value.trim())
+    const isDisabled = computed(() => props.loading || props.disabled || !text.value.trim())
 
     const submit = () => {
       if (!vditorInstance.value || isDisabled.value) return
@@ -79,12 +83,39 @@ export default {
           'image'
         ],
         toolbarConfig: { pin: true },
-        input(value) {
-          text.value = value
-        }
-      })
+       input(value) {
+         text.value = value
+       }
+     })
+      if (props.disabled || props.loading) {
+        vditorInstance.value.disabled()
+      }
     })
 
+    watch(
+      () => props.loading,
+      val => {
+        if (!vditorInstance.value) return
+        if (val) {
+          vditorInstance.value.disabled()
+        } else if (!props.disabled) {
+          vditorInstance.value.enable()
+        }
+      }
+    )
+
+    watch(
+      () => props.disabled,
+      val => {
+        if (!vditorInstance.value) return
+        if (val) {
+          vditorInstance.value.disabled()
+        } else if (!props.loading) {
+          vditorInstance.value.enable()
+        }
+      }
+    )
+
     return { submit, isDisabled }
   }
 }
diff --git a/open-isle-cli/src/components/LoginOverlay.vue b/open-isle-cli/src/components/LoginOverlay.vue
new file mode 100644
index 000000000..9a9f2d20e
--- /dev/null
+++ b/open-isle-cli/src/components/LoginOverlay.vue
@@ -0,0 +1,39 @@
+<template>
+  <div class="login-overlay" @click="goLogin">
+    <div class="login-overlay-text">
+      请先登录，点击跳转到登录页面
+    </div>
+  </div>
+</template>
+
+<script>
+import { useRouter } from 'vue-router'
+
+export default {
+  name: 'LoginOverlay',
+  setup() {
+    const router = useRouter()
+    const goLogin = () => {
+      router.push('/login')
+    }
+    return { goLogin }
+  }
+}
+</script>
+
+<style scoped>
+.login-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(255, 255, 255, 0.7);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  text-align: center;
+  cursor: pointer;
+  z-index: 15;
+}
+</style>
diff --git a/open-isle-cli/src/components/PostEditor.vue b/open-isle-cli/src/components/PostEditor.vue
index e35970ecc..555fcdfb4 100644
--- a/open-isle-cli/src/components/PostEditor.vue
+++ b/open-isle-cli/src/components/PostEditor.vue
@@ -32,6 +32,10 @@ export default {
     loading: {
       type: Boolean,
       default: false
+    },
+    disabled: {
+      type: Boolean,
+      default: false
     }
   },
   setup(props, { emit }) {
@@ -48,6 +52,18 @@ export default {
       }
     )
 
+    watch(
+      () => props.disabled,
+      val => {
+        if (!vditorInstance.value) return
+        if (val) {
+          vditorInstance.value.disabled()
+        } else if (!props.loading) {
+          vditorInstance.value.enable()
+        }
+      }
+    )
+
     watch(
       () => props.modelValue,
       val => {
@@ -118,6 +134,9 @@ export default {
         },
         after() {
           vditorInstance.value.setValue(props.modelValue)
+          if (props.loading || props.disabled) {
+            vditorInstance.value.disabled()
+          }
         }
       })
     })
diff --git a/open-isle-cli/src/router/index.js b/open-isle-cli/src/router/index.js
index 2833537c0..8a5a6cc8f 100644
--- a/open-isle-cli/src/router/index.js
+++ b/open-isle-cli/src/router/index.js
@@ -8,6 +8,7 @@ import SignupPageView from '../views/SignupPageView.vue'
 import NewPostPageView from '../views/NewPostPageView.vue'
 import SettingsPageView from '../views/SettingsPageView.vue'
 import ProfileView from '../views/ProfileView.vue'
+import NotFoundPageView from '../views/NotFoundPageView.vue'
 
 const routes = [
   {
@@ -55,6 +56,15 @@ const routes = [
     name: 'users',
     component: ProfileView
   },
+  {
+    path: '/404',
+    name: 'not-found',
+    component: NotFoundPageView
+  },
+  {
+    path: '/:pathMatch(.*)*',
+    redirect: '/404'
+  }
 ]
 
 const router = createRouter({
diff --git a/open-isle-cli/src/views/NewPostPageView.vue b/open-isle-cli/src/views/NewPostPageView.vue
index f2c68745b..fd97d3c69 100644
--- a/open-isle-cli/src/views/NewPostPageView.vue
+++ b/open-isle-cli/src/views/NewPostPageView.vue
@@ -3,7 +3,8 @@
     <div class="new-post-form">
       <input class="post-title-input" v-model="title" placeholder="标题" />
       <div class="post-editor-container">
-        <PostEditor v-model="content" :loading="isAiLoading" />
+        <PostEditor v-model="content" :loading="isAiLoading" :disabled="!isLogin" />
+        <LoginOverlay v-if="!isLogin" />
       </div>
       <div class="post-options">
         <div class="post-options-left">
@@ -22,7 +23,12 @@
             <i class="fa-solid fa-floppy-disk"></i>
             存草稿
           </div>
-          <div v-if="!isWaitingPosting" class="post-submit" @click="submitPost">发布</div>
+          <div
+            v-if="!isWaitingPosting"
+            class="post-submit"
+            :class="{ disabled: !isLogin }"
+            @click="isLogin && submitPost"
+          >发布</div>
           <div v-else class="post-submit-loading"> <i class="fa-solid fa-spinner fa-spin"></i> 发布中...</div>
         </div>
       </div>
@@ -31,16 +37,17 @@
 </template>
 
 <script>
-import { ref, onMounted } from 'vue'
+import { ref, onMounted, computed } from 'vue'
 import PostEditor from '../components/PostEditor.vue'
 import CategorySelect from '../components/CategorySelect.vue'
 import TagSelect from '../components/TagSelect.vue'
 import { API_BASE_URL, toast } from '../main'
-import { getToken } from '../utils/auth'
+import { getToken, authState } from '../utils/auth'
+import LoginOverlay from '../components/LoginOverlay.vue'
 
 export default {
   name: 'NewPostPageView',
-  components: { PostEditor, CategorySelect, TagSelect },
+  components: { PostEditor, CategorySelect, TagSelect, LoginOverlay },
   setup() {
     const title = ref('')
     const content = ref('')
@@ -48,6 +55,7 @@ export default {
     const selectedTags = ref([])
     const isWaitingPosting = ref(false)
     const isAiLoading = ref(false)
+    const isLogin = computed(() => authState.loggedIn)
 
     const loadDraft = async () => {
       const token = getToken()
@@ -237,7 +245,7 @@ export default {
         isWaitingPosting.value = false
       }
     }
-    return { title, content, selectedCategory, selectedTags, submitPost, saveDraft, clearPost, isWaitingPosting, aiGenerate, isAiLoading }
+    return { title, content, selectedCategory, selectedTags, submitPost, saveDraft, clearPost, isWaitingPosting, aiGenerate, isAiLoading, isLogin }
   }
 }
 </script>
@@ -296,6 +304,10 @@ export default {
   opacity: 0.7;
 }
 
+.post-editor-container {
+  position: relative;
+}
+
 .post-submit {
   background-color: var(--primary-color);
   color: #fff;
@@ -305,9 +317,17 @@ export default {
   cursor: pointer;
 }
 
+.post-submit.disabled {
+  background-color: var(--primary-color-disabled);
+  cursor: not-allowed;
+}
+
 .post-submit:hover {
   background-color: var(--primary-color-hover);
 }
+.post-submit.disabled:hover {
+  background-color: var(--primary-color-disabled);
+}
 
 .post-submit-loading {
   color: white;
diff --git a/open-isle-cli/src/views/NotFoundPageView.vue b/open-isle-cli/src/views/NotFoundPageView.vue
new file mode 100644
index 000000000..77a85310a
--- /dev/null
+++ b/open-isle-cli/src/views/NotFoundPageView.vue
@@ -0,0 +1,33 @@
+<template>
+  <div class="not-found-page">
+    <h1>404 - 页面不存在</h1>
+    <p>你访问的页面不存在或已被删除。</p>
+    <router-link to="/">返回首页</router-link>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'NotFoundPageView'
+}
+</script>
+
+<style scoped>
+.not-found-page {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  height: calc(100vh - var(--header-height));
+  text-align: center;
+}
+
+.not-found-page h1 {
+  margin-bottom: 20px;
+}
+
+.not-found-page a {
+  color: var(--primary-color);
+  text-decoration: underline;
+}
+</style>
diff --git a/open-isle-cli/src/views/PostPageView.vue b/open-isle-cli/src/views/PostPageView.vue
index 4e575914b..9c4a12d39 100644
--- a/open-isle-cli/src/views/PostPageView.vue
+++ b/open-isle-cli/src/views/PostPageView.vue
@@ -59,7 +59,14 @@
         </div>
       </div>
 
-      <CommentEditor @submit="postComment" :loading="isWaitingPostingComment" />
+      <div class="comment-editor-wrapper">
+        <CommentEditor
+          @submit="postComment"
+          :loading="isWaitingPostingComment"
+          :disabled="!loggedIn"
+        />
+        <LoginOverlay v-if="!loggedIn" />
+      </div>
 
       <div class="comments-container">
         <BaseTimeline :items="comments">
@@ -104,6 +111,7 @@ import ArticleTags from '../components/ArticleTags.vue'
 import ArticleCategory from '../components/ArticleCategory.vue'
 import ReactionsGroup from '../components/ReactionsGroup.vue'
 import DropdownMenu from '../components/DropdownMenu.vue'
+import LoginOverlay from '../components/LoginOverlay.vue'
 import { renderMarkdown } from '../utils/markdown'
 import { API_BASE_URL, toast } from '../main'
 import { getToken, authState } from '../utils/auth'
@@ -114,7 +122,7 @@ hatch.register()
 
 export default {
   name: 'PostPageView',
-  components: { CommentItem, CommentEditor, BaseTimeline, ArticleTags, ArticleCategory, ReactionsGroup, DropdownMenu },
+  components: { CommentItem, CommentEditor, BaseTimeline, ArticleTags, ArticleCategory, ReactionsGroup, DropdownMenu, LoginOverlay },
   setup() {
     const route = useRoute()
     const postId = route.params.id
@@ -235,7 +243,12 @@ export default {
           headers: { Authorization: token ? `Bearer ${token}` : '' }
         })
         isWaitingFetchingPost.value = false;
-        if (!res.ok) return
+        if (!res.ok) {
+          if (res.status === 404) {
+            router.replace('/404')
+          }
+          return
+        }
         const data = await res.json()
         postContent.value = data.content
         author.value = data.author
@@ -779,4 +792,8 @@ export default {
 .copy-link:hover {
   background-color: #e2e2e2;
 }
+
+.comment-editor-wrapper {
+  position: relative;
+}
 </style>
diff --git a/open-isle-cli/src/views/ProfileView.vue b/open-isle-cli/src/views/ProfileView.vue
index 03ab772cf..b5c842a34 100644
--- a/open-isle-cli/src/views/ProfileView.vue
+++ b/open-isle-cli/src/views/ProfileView.vue
@@ -281,6 +281,8 @@ export default {
         const data = await res.json()
         user.value = data
         subscribed.value = !!data.subscribed
+      } else if (res.status === 404) {
+        router.replace('/404')
       }
     }