diff --git a/src/components/AppNav.vue b/src/components/AppNav.vue
index f1b1f0f..51383a4 100644
--- a/src/components/AppNav.vue
+++ b/src/components/AppNav.vue
@@ -143,7 +143,7 @@ const LINKS = [
 
       <button
         type="button"
-        class="relative flex items-center gap-1.5 rounded-md border border-slate-200 px-2.5 py-1.5 text-sm text-slate-600 transition hover:border-slate-300 hover:bg-slate-50 hover:text-slate-900 dark:border-zinc-700 dark:text-zinc-300 dark:hover:border-zinc-600 dark:hover:bg-zinc-800"
+        class="group relative flex items-center gap-1.5 rounded-md border border-slate-200 px-2.5 py-1.5 text-sm text-slate-600 transition hover:border-slate-300 hover:bg-slate-50 hover:text-slate-900 dark:border-zinc-700 dark:text-zinc-300 dark:hover:border-zinc-600 dark:hover:bg-zinc-800 dark:hover:text-zinc-100"
         :aria-label="`回收站（${store.trashTasks.length} 个任务）`"
         @click="ui.openTrash()"
       >
@@ -168,7 +168,7 @@ const LINKS = [
         <span class="hidden sm:inline">回收站</span>
         <span
           v-if="store.trashTasks.length > 0"
-          class="rounded-full bg-slate-200 px-1.5 text-[11px] leading-4 font-medium text-slate-700 dark:bg-zinc-700 dark:text-zinc-200"
+          class="rounded-full bg-slate-200 px-1.5 text-[11px] leading-4 font-medium text-slate-700 dark:bg-zinc-700 dark:text-zinc-200 dark:group-hover:bg-zinc-600 dark:group-hover:text-zinc-50"
         >
           {{ store.trashTasks.length }}
         </span>
@@ -176,7 +176,7 @@ const LINKS = [
 
       <button
         type="button"
-        class="flex items-center gap-1.5 rounded-md border border-slate-200 px-2.5 py-1.5 text-sm text-slate-600 transition hover:border-slate-300 hover:bg-slate-50 hover:text-slate-900 dark:border-zinc-700 dark:text-zinc-300 dark:hover:border-zinc-600 dark:hover:bg-zinc-800"
+        class="flex items-center gap-1.5 rounded-md border border-slate-200 px-2.5 py-1.5 text-sm text-slate-600 transition hover:border-slate-300 hover:bg-slate-50 hover:text-slate-900 dark:border-zinc-700 dark:text-zinc-300 dark:hover:border-zinc-600 dark:hover:bg-zinc-800 dark:hover:text-zinc-100"
         aria-label="备份"
         @click="ui.openBackup()"
       >
diff --git a/src/components/BoardToolbar.vue b/src/components/BoardToolbar.vue
index 3b7a97f..0f8cfde 100644
--- a/src/components/BoardToolbar.vue
+++ b/src/components/BoardToolbar.vue
@@ -302,7 +302,7 @@ defineExpose({ focusSearch })
       <button
         v-if="archivableCount > 0"
         type="button"
-        class="rounded text-slate-600 underline decoration-slate-300 underline-offset-2 transition hover:text-slate-900 hover:decoration-slate-500 dark:text-zinc-400 dark:decoration-zinc-600 dark:hover:text-zinc-200"
+        class="rounded text-slate-600 underline decoration-slate-300 underline-offset-2 transition hover:text-slate-900 hover:decoration-slate-500 dark:text-zinc-400 dark:decoration-zinc-600 dark:hover:text-zinc-200 dark:hover:decoration-zinc-400"
         @click="emit('archive')"
       >
         归档 {{ archivableCount }} 个已完成
diff --git a/src/components/TaskDetailDrawer.spec.ts b/src/components/TaskDetailDrawer.spec.ts
index 3debea5..a5d33d9 100644
--- a/src/components/TaskDetailDrawer.spec.ts
+++ b/src/components/TaskDetailDrawer.spec.ts
@@ -213,6 +213,12 @@ describe('TaskDetailDrawer 时间信息', () => {
   /** `YYYY-MM-DD HH:mm` */
   const DATE_TIME_PATTERN = /^\d{4}-\d{2}-\d{2} \d{2}:\d{2}$/
 
+  it('时间按创建、更新、完成的顺序展示', () => {
+    const { wrapper } = setup()
+
+    expect(wrapper.findAll('dt').map((node) => node.text())).toEqual(['创建', '更新', '完成'])
+  })
+
   it('显示创建与更新时间，未完成时完成时间标注为「未完成」', () => {
     const { wrapper } = setup()
 
diff --git a/src/components/TaskDetailDrawer.vue b/src/components/TaskDetailDrawer.vue
index 8e0239c..8061702 100644
--- a/src/components/TaskDetailDrawer.vue
+++ b/src/components/TaskDetailDrawer.vue
@@ -253,6 +253,8 @@ function remove(): void {
         时间：标题与「标签」同级平铺，明细单独用一个描边框圈起来。
         只靠字号（标题 text-sm / 明细 text-xs）分层，框只负责把只读信息
         和上方的可编辑字段区分开，不参与层级表达。
+        明细顺序固定为 创建 → 更新 → 完成（归档时再追加一行），
+        按时间线上的发生次序排列，而不是按字段重要性。
       -->
       <section class="flex flex-col gap-1.5" aria-labelledby="task-time-heading">
         <h3 id="task-time-heading" class="text-sm font-medium text-slate-600 dark:text-zinc-400">
@@ -266,6 +268,11 @@ function remove(): void {
             {{ createdAtText ?? '—' }}
           </dd>
 
+          <dt class="text-slate-400 dark:text-zinc-500">更新</dt>
+          <dd data-role="updated-at" class="tabular-nums text-slate-600 dark:text-zinc-300">
+            {{ updatedAtText ?? '—' }}
+          </dd>
+
           <dt class="text-slate-400 dark:text-zinc-500">完成</dt>
           <dd data-role="completed-at" class="tabular-nums text-slate-600 dark:text-zinc-300">
             <span :class="completedAtText ? '' : 'text-slate-400 dark:text-zinc-500'">
@@ -273,11 +280,6 @@ function remove(): void {
             </span>
           </dd>
 
-          <dt class="text-slate-400 dark:text-zinc-500">更新</dt>
-          <dd data-role="updated-at" class="tabular-nums text-slate-600 dark:text-zinc-300">
-            {{ updatedAtText ?? '—' }}
-          </dd>
-
           <template v-if="archivedAtText">
             <dt class="text-slate-400 dark:text-zinc-500">归档</dt>
             <dd data-role="archived-at" class="tabular-nums text-slate-600 dark:text-zinc-300">