diff --git a/src/components/ai/EmptyState.vue b/src/components/ai/EmptyState.vue
index 60476ef..ba2144d 100644
--- a/src/components/ai/EmptyState.vue
+++ b/src/components/ai/EmptyState.vue
@@ -72,9 +72,8 @@ const examplePrompts = [
   align-items: center;
   justify-content: center;
   gap: 8px;
-  opacity: 0.5;
 }
-.ai-empty-icon { margin-bottom: 4px; }
+.ai-empty-icon { margin-bottom: 4px; opacity: 0.4; }
 .ai-empty-text {
   font-size: 14px;
   font-weight: 500;
diff --git a/src/i18n/en/projectDetail.ts b/src/i18n/en/projectDetail.ts
index fb23044..7f5a71f 100644
--- a/src/i18n/en/projectDetail.ts
+++ b/src/i18n/en/projectDetail.ts
@@ -2,6 +2,7 @@ export default {
   projectDetail: {
     // Header
     backToList: '← Projects',
+    notFound: 'Project not found or deleted',
     sync: '🔄 Sync',
     delete: '🗑 Delete',
     newTask: '+ New Task',
diff --git a/src/i18n/zh-CN/projectDetail.ts b/src/i18n/zh-CN/projectDetail.ts
index c072413..a1e57e7 100644
--- a/src/i18n/zh-CN/projectDetail.ts
+++ b/src/i18n/zh-CN/projectDetail.ts
@@ -2,6 +2,7 @@ export default {
   projectDetail: {
     // 头部
     backToList: '← 项目列表',
+    notFound: '项目不存在或已删除',
     sync: '🔄 同步',
     delete: '🗑 删除',
     newTask: '+ 新任务',
diff --git a/src/views/Ideas.vue b/src/views/Ideas.vue
index 87be04e..6baac4c 100644
--- a/src/views/Ideas.vue
+++ b/src/views/Ideas.vue
@@ -108,21 +108,31 @@
     <div class="modal-overlay" v-if="showCaptureModal" @click.self="showCaptureModal = false">
       <div class="modal-box">
         <h3>{{ $t('ideas.captureTitle') }}</h3>
-        <label style="font-size:12px;color:var(--df-text-secondary);margin-bottom:4px;display:block">{{ $t('ideas.fieldTitle') }}</label>
-        <input v-model="newIdeaTitle" :placeholder="$t('ideas.titlePlaceholder')" @keyup.enter="confirmCapture" />
-        <label style="font-size:12px;color:var(--df-text-secondary);margin-bottom:4px;display:block">{{ $t('ideas.fieldDesc') }}</label>
-        <textarea v-model="newIdeaDesc" :placeholder="$t('ideas.descPlaceholder')" rows="3" style="resize:vertical"></textarea>
-        <label style="font-size:12px;color:var(--df-text-secondary);margin-bottom:4px;display:block">{{ $t('ideas.fieldTags') }}</label>
-        <input v-model="newIdeaTags" :placeholder="$t('ideas.tagsPlaceholder')" />
-        <label style="font-size:12px;color:var(--df-text-secondary);margin-bottom:4px;display:block">{{ $t('ideas.fieldPriority') }}</label>
-        <select v-model.number="newIdeaPriority" class="modal-select">
-          <option :value="0">{{ $t('ideas.priorityCritical') }} (P0)</option>
-          <option :value="1">{{ $t('ideas.priorityHigh') }} (P1)</option>
-          <option :value="2">{{ $t('ideas.priorityMedium') }} (P2)</option>
-          <option :value="3">{{ $t('ideas.priorityLow') }} (P3)</option>
-        </select>
-        <label style="font-size:12px;color:var(--df-text-secondary);margin-bottom:4px;display:block">{{ $t('ideas.fieldSource') }}</label>
-        <input v-model="newIdeaSource" :placeholder="$t('ideas.sourcePlaceholder')" />
+        <div class="modal-field">
+          <label>{{ $t('ideas.fieldTitle') }}</label>
+          <input v-model="newIdeaTitle" :placeholder="$t('ideas.titlePlaceholder')" @keyup.enter="confirmCapture" />
+        </div>
+        <div class="modal-field">
+          <label>{{ $t('ideas.fieldDesc') }}</label>
+          <textarea v-model="newIdeaDesc" :placeholder="$t('ideas.descPlaceholder')" rows="3" style="resize:vertical"></textarea>
+        </div>
+        <div class="modal-field">
+          <label>{{ $t('ideas.fieldTags') }}</label>
+          <input v-model="newIdeaTags" :placeholder="$t('ideas.tagsPlaceholder')" />
+        </div>
+        <div class="modal-field">
+          <label>{{ $t('ideas.fieldPriority') }}</label>
+          <select v-model.number="newIdeaPriority" class="modal-select">
+            <option :value="0">{{ $t('ideas.priorityCritical') }} (P0)</option>
+            <option :value="1">{{ $t('ideas.priorityHigh') }} (P1)</option>
+            <option :value="2">{{ $t('ideas.priorityMedium') }} (P2)</option>
+            <option :value="3">{{ $t('ideas.priorityLow') }} (P3)</option>
+          </select>
+        </div>
+        <div class="modal-field">
+          <label>{{ $t('ideas.fieldSource') }}</label>
+          <input v-model="newIdeaSource" :placeholder="$t('ideas.sourcePlaceholder')" />
+        </div>
         <div class="modal-actions">
           <button class="btn-cancel" @click="showCaptureModal = false">{{ $t('common.cancel') }}</button>
           <button class="btn-confirm" :disabled="creating" @click="confirmCapture">
diff --git a/src/views/Knowledge.vue b/src/views/Knowledge.vue
index 5d695bc..5dd6f68 100644
--- a/src/views/Knowledge.vue
+++ b/src/views/Knowledge.vue
@@ -57,6 +57,7 @@
 
         <!-- 卡片列表 -->
         <div class="list-cards">
+          <div v-if="store.loading" class="list-empty">{{ $t('common.loading') }}</div>
           <div
             v-for="item in listItems"
             :key="item.id"
diff --git a/src/views/ProjectDetail.vue b/src/views/ProjectDetail.vue
index e4cb0a2..3af57a6 100644
--- a/src/views/ProjectDetail.vue
+++ b/src/views/ProjectDetail.vue
@@ -1,11 +1,20 @@
 <template>
   <div class="project-detail">
+    <!-- 加载态 -->
+    <div v-if="loading" class="loading-state">{{ $t('common.loading') }}</div>
+    <!-- 项目不存在 -->
+    <div v-else-if="!currentProject" class="empty-state">
+      <p>{{ $t('projectDetail.notFound') }}</p>
+      <router-link to="/projects" class="btn btn-primary">{{ $t('projectDetail.backToList') }}</router-link>
+    </div>
+    <!-- 项目详情 -->
+    <template v-else>
     <!-- 页面头部 -->
     <header class="page-header">
       <div class="header-left">
         <router-link to="/projects" class="back-link">{{ $t('projectDetail.backToList') }}</router-link>
-        <h1>{{ currentProject?.name ?? '...' }}</h1>
-        <span class="stage-badge" :class="'stage-' + stageKey">{{ $t(statusLabel) }}</span>
+        <h1>{{ currentProject.name }}</h1>
+        <span v-if="statusLabel" class="stage-badge" :class="'stage-' + stageKey">{{ $t(statusLabel) }}</span>
       </div>
       <div class="header-actions">
         <button class="btn btn-ghost" @click="handleSync">{{ $t('projectDetail.sync') }}</button>
@@ -253,6 +262,7 @@
 
     <!-- 确认弹层（删除/重定位确认，替代原生 window.confirm/alert） -->
     <ConfirmDialog :visible="confirmState.visible" :msg="confirmState.msg" @result="answerConfirm" />
+    </template>
   </div>
 </template>
 
@@ -290,14 +300,7 @@ const activeTab = ref<'overview' | 'files' | 'graph'>('overview')
 // 确认弹层状态机抽至 composables/useConfirm(原 4 视图重复:Projects/ProjectDetail/Ideas/Settings)
 const { confirmState, confirmDialog, answerConfirm } = useConfirm()
 
-// ── 阶段定义(暂时隐藏,阶段进度条模板已注释,后续接入真实状态机后启用) ──
-// const stages = [
-//   { key: 'idea', labelKey: 'stageIdea' },
-//   { key: 'requirement', labelKey: 'stageRequirement' },
-//   { key: 'coding', labelKey: 'stageCoding' },
-//   { key: 'testing', labelKey: 'stageTesting' },
-//   { key: 'release', labelKey: 'stageRelease' },
-// ]
+
 
 // ── 当前项目 ──
 // 状态文案/阶段进度统一走 ../constants/project(与 Projects/Tasks/Dashboard 一致,
@@ -306,6 +309,7 @@ const projectId = computed(() => route.params.id as string)
 const currentProject = computed(() =>
   store.projects.find(p => p.id === projectId.value)
 )
+const loading = computed(() => store.projects.length === 0 && !store.error)
 
 // 状态文案/阶段进度统一走 ../constants/project
 // B-260615-25:项目描述 Markdown 渲染(复用 AiChat/TaskDetail 同款渲染器,模块级单例),
@@ -553,6 +557,10 @@ onUnmounted(() => {
 <style scoped>
 /* ... 现有样式 ... */
 
+/* 加载/空态(模板顶部使用) */
+.loading-state { text-align: center; padding: 40px; color: var(--df-text-dim); }
+.empty-state { text-align: center; padding: 40px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
+
 /* ===== 项目信息样式 ===== */
 .project-info {
   display: flex;
@@ -736,11 +744,13 @@ onUnmounted(() => {
   border-radius: var(--df-radius-lg);
   font-weight: 500;
 }
-.stage-idea { background: rgba(100,181,246,0.15); color: var(--df-info); }
-.stage-requirement { background: rgba(255,217,61,0.15); color: var(--df-warning); }
-.stage-coding { background: rgba(108,99,255,0.15); color: var(--df-accent); }
-.stage-testing { background: rgba(100,255,218,0.15); color: var(--df-success); }
-.stage-release { background: rgba(255,107,107,0.15); color: #ff9800; }
+.stage-planning { background: rgba(100,181,246,0.15); color: #64b5f6; }
+.stage-in_progress { background: rgba(108,99,255,0.15); color: #6c63ff; }
+.stage-testing { background: rgba(255,193,7,0.15); color: #ffc107; }
+.stage-releasing { background: rgba(156,39,176,0.15); color: #ce93d8; }
+.stage-completed { background: rgba(100,200,100,0.15); color: #64c864; }
+.stage-paused { background: rgba(158,158,158,0.15); color: #9e9e9e; }
+.stage-cancelled { background: rgba(244,67,54,0.15); color: #f44336; }
 
 .header-actions { display: flex; gap: 10px; }
 
diff --git a/src/views/Projects.vue b/src/views/Projects.vue
index 92fab5e..219199a 100644
--- a/src/views/Projects.vue
+++ b/src/views/Projects.vue
@@ -579,7 +579,7 @@ async function runImport() {
 .import-table tbody td { padding: 8px 10px; border-bottom: 0.5px solid var(--df-border); vertical-align: top; color: var(--df-text-secondary); }
 .import-table tbody tr:last-child td { border-bottom: none; }
 .import-table .col-check { width: 32px; text-align: center; }
-.import-table .col-path { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--df-mono, monospace); font-size: 11px; }
+.import-table .col-path { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--df-font-mono, monospace); font-size: 11px; }
 .row-disabled { opacity: 0.5; }
 .imp-name { font-weight: 500; color: var(--df-text); }
 .mono-tag { margin-left: 6px; font-size: 10px; padding: 1px 6px; border-radius: var(--df-radius-xs); background: rgba(255,217,61,0.15); color: var(--df-warning); border: 0.5px solid var(--df-border); }
diff --git a/src/views/Tasks.vue b/src/views/Tasks.vue
index 1d8c0ab..44ca485 100644
--- a/src/views/Tasks.vue
+++ b/src/views/Tasks.vue
@@ -155,11 +155,14 @@
         </div>
       </div>
     </div>
+
+    <!-- 确认弹层(删除任务,替代原生 window.confirm) -->
+    <ConfirmDialog :visible="confirmState.visible" :msg="confirmState.msg" @result="answerConfirm" />
   </div>
 </template>
 
 <script setup lang="ts">
-import { ref, computed, onMounted, watch, reactive } from 'vue'
+import { ref, computed, onMounted, onUnmounted, watch, reactive } from 'vue'
 import { useRouter } from 'vue-router'
 import { useI18n } from 'vue-i18n'
 import { useProjectStore } from '@/stores/project'
@@ -168,10 +171,13 @@ import { taskStatusLabel as statusLabel, taskStatusClass, priorityLabel, priorit
 import { taskApi } from '@/api'
 import type { TaskRecord, TaskQuery, ProjectId } from '@/api/types'
 import Paginator from '../components/Paginator.vue'
+import ConfirmDialog from '@/components/ConfirmDialog.vue'
+import { useConfirm } from '@/composables/useConfirm'
 
 const router = useRouter()
 const store = useProjectStore()
 const { t } = useI18n()
+const { confirmState, confirmDialog, answerConfirm } = useConfirm()
 
 const activeProject = ref('all')
 const activeStatus = ref('all')
@@ -222,7 +228,7 @@ async function quickPriority(id: string, priority: number) {
 }
 async function quickDelete(task: TaskRecord) {
   quickMenuId.value = null
-  if (!confirm(t('tasks.confirmDelete', { title: task.title }))) return
+  if (!await confirmDialog(t('tasks.confirmDelete', { title: task.title }))) return
   try {
     await store.deleteTask(task.id)
   } catch (e) { console.error('删除失败:', e) }
@@ -343,17 +349,6 @@ function buildTaskQuery(): TaskQuery | undefined {
   return query
 }
 
-async function refresh() {
-  loading.value = true
-  try {
-    await store.loadTasks(buildTaskQuery())
-    totalTasks.value = store.tasks.length
-  } finally {
-    loading.value = false
-  }
-}
-void refresh // 保留:将来可能由下拉刷新/手动刷新按钮触发
-
 function openCreateModal() {
   newTaskProjectId.value = store.projects.length > 0 ? store.projects[0].id : ''
   newTaskTitle.value = ''
@@ -439,7 +434,6 @@ onMounted(async () => {
   document.addEventListener('click', closeQuickMenu)
 })
 
-import { onUnmounted } from 'vue'
 onUnmounted(() => {
   window.removeEventListener('keydown', onKeydown)
   document.removeEventListener('click', closeQuickMenu)
@@ -697,10 +691,6 @@ onUnmounted(() => {
   margin: 4px 0;
 }
 .quick-menu-danger { color: var(--df-danger); }
-.priority-critical { color: var(--df-danger); }
-.priority-high { color: #ff9800; }
-.priority-medium { color: var(--df-info); }
-.priority-low { color: var(--df-text-dim); }
 
 /* 空态 */
 .empty-state {