新增: 资料导入增强+剪贴板+框选多选+未保存自动暂存+图片占位

src/components/HomePage.vue

@@ -3,6 +3,7 @@
   ===================================================================== -->
 <script setup lang="ts">
 import { ref, computed, onMounted } from 'vue'
+
 import { store } from '../core/store'
 import type { LibItem } from '../core/types'
 
@@ -46,6 +47,16 @@ function firstSlideTitle(item: LibItem): string {
   const el = item?.deck?.slides?.[0]?.elements?.[0]
   return el?.type === 'title' ? (el.content || '无标题') : '无标题'
 }
+
+/* 上次未入库的工作区草稿（改了没保存就关/刷新），提示继续编辑 */
+const workDraft = computed(() => {
+  if (!store.getActiveLibId() && store.hasWorkDeck()) {
+    const d = store.getDeck()
+    const t = d.slides[0]?.elements.find(e => e.type === 'title')
+    return { title: t?.content || '未命名草稿', pages: d.slides.length }
+  }
+  return null
+})
 </script>
 
 <template>
@@ -64,6 +75,15 @@ function firstSlideTitle(item: LibItem): string {
         <p class="home-desc">轻量在线演示工具 · 支持 AI 创作与本地资料导入</p>
       </header>
 
+      <!-- 未保存草稿恢复 -->
+      <button v-if="workDraft" class="draft-resume" @click="emit('open-deck')">
+        <span class="draft-icon">⏵</span>
+        <span class="draft-info">
+          <strong>继续编辑「{{ workDraft.title }}」</strong>
+          <span>{{ workDraft.pages }} 页 · 上次未保存的草稿已自动暂存</span>
+        </span>
+      </button>
+
       <!-- 快捷入口 -->
       <div class="home-actions">
         <button class="action-card" @click="emit('new-blank')">
@@ -171,6 +191,27 @@ function firstSlideTitle(item: LibItem): string {
   color: var(--ui-muted, #64748b);
 }
 
+/* 未保存草稿恢复卡片 */
+.draft-resume {
+  display: flex; align-items: center; gap: 14px;
+  width: 100%; padding: 14px 18px;
+  border: 1px solid var(--ui-primary, #4f46e5);
+  border-radius: 12px;
+  background: color-mix(in srgb, var(--ui-primary, #4f46e5) 6%, var(--ui-panel, #fff));
+  cursor: pointer; text-align: left;
+  transition: box-shadow .15s, transform .15s;
+}
+.draft-resume:hover { box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,.08)); transform: translateY(-1px); }
+.draft-icon {
+  width: 36px; height: 36px; border-radius: 50%;
+  background: var(--ui-primary, #4f46e5); color: #fff;
+  display: flex; align-items: center; justify-content: center;
+  font-size: 16px; flex-shrink: 0;
+}
+.draft-info { display: flex; flex-direction: column; gap: 2px; }
+.draft-info strong { font-size: 14px; color: var(--ui-text, #1e293b); }
+.draft-info span { font-size: 12px; color: var(--ui-muted, #64748b); }
+
 /* 快捷入口网格 */
 .home-actions {
   display: grid;