diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index d4bd4dd..6b428f2 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -1254,7 +1254,7 @@ onUnmounted(() => {
     </aside>
 
     <div v-if="mobileMore" class="more-mask app-sheet-mask" @click.self="mobileMore=false;switchView('settings')"><section id="mobile-more-menu" class="more-sheet app-sheet app-sheet--actions" role="dialog" aria-modal="true" aria-label="更多导航" @click.stop><div class="more-sheet-head app-sheet__header"><b>更多</b><button class="icon" aria-label="关闭更多菜单" @click="mobileMore=false"><X/></button></div><div class="app-sheet__body"><button @click="switchView('settings')"><Settings/>设置与数据</button></div></section></div>
-    <nav class="bottom" aria-label="主要导航"><button :class="{active:activeView==='today'}" @click="switchView('today')"><ListTodo/><span>今天</span></button><button :class="{active:activeView==='habits'}" @click="switchView('habits')"><Repeat2/><span>习惯</span></button><button :class="{active:activeView==='countdowns'}" @click="switchView('countdowns')"><CalendarHeart/><span>倒数日</span></button><button :class="{active:activeView==='tasks'||activeView==='upcoming'||activeView==='trash'||activeView==='settings'}" @click="switchView('settings')"><Settings/><span>设置</span></button></nav>
+    <nav class="bottom" aria-label="主要导航"><button :class="{active:activeView==='today'}" :aria-current="activeView==='today' ? 'page' : undefined" @click="switchView('today')"><ListTodo/><span>今天</span></button><button :class="{active:activeView==='habits'}" :aria-current="activeView==='habits' ? 'page' : undefined" @click="switchView('habits')"><Repeat2/><span>习惯</span></button><button :class="{active:activeView==='countdowns'}" :aria-current="activeView==='countdowns' ? 'page' : undefined" @click="switchView('countdowns')"><CalendarHeart/><span>倒数日</span></button><button :class="{active:activeView==='settings'}" :aria-current="activeView==='settings' ? 'page' : undefined" @click="switchView('settings')"><Settings/><span>设置</span></button></nav>
     <FloatingAddButton v-if="['tasks','today','upcoming','habits','countdowns'].includes(activeView)" :label="activeView==='habits' ? '添加习惯' : activeView==='countdowns' ? '添加倒数日' : '添加任务'" @activate="activateFloatingAdd" />
     <Transition name="task-compose">
       <div v-if="taskComposeOpen" class="task-compose-mask app-sheet-mask" @click.self="closeTaskCompose">
diff --git a/frontend/src/MvpPanel.vue b/frontend/src/MvpPanel.vue
index 18c4584..11fd952 100644
--- a/frontend/src/MvpPanel.vue
+++ b/frontend/src/MvpPanel.vue
@@ -2,7 +2,7 @@
 import { computed, nextTick, onBeforeUnmount, onMounted, ref, watch } from 'vue'
 import { Activity, ArchiveRestore, Check, Download, FileJson, GripVertical, LogOut, Pencil, Trash2, X } from 'lucide-vue-next'
 import { moveItemWithinScope } from './lib/task-utils'
-import { changedHabitFields, dateKey, formatHabitApiError, habitActionState, habitButtonNotice, habitButtonValue, isHabitComplete, isHabitScheduledToday, mergePage, nextHabitSwipeValue, previousHabitSwipeValue, readHabitGridCache, shouldToggleRowSwipe, validateHabitForm, writeHabitGridCache, type HabitFormErrors, type HabitFormValues } from './lib/mvp-utils'
+import { changedHabitFields, dateKey, formatAuditAction, formatAuditEntity, formatHabitApiError, formatLocalShortDateTime, formatUserAgent, habitActionState, habitButtonNotice, habitButtonValue, isHabitComplete, isHabitScheduledToday, mergePage, nextHabitSwipeValue, previousHabitSwipeValue, readHabitGridCache, shouldToggleRowSwipe, validateHabitForm, writeHabitGridCache, type HabitFormErrors, type HabitFormValues } from './lib/mvp-utils'
 import { csrfHeader } from './lib/csrf'
 import { createCompletionPulse } from './lib/completion-motion'
 
@@ -606,8 +606,8 @@ onBeforeUnmount(() => {
       <div class="settings-grid">
         <article class="tool-card"><FileJson /><h2>数据导出与恢复</h2><p>导出完整 CSV 数据，或从 CSV / JSON 备份恢复。</p><button class="soft-button" @click="exportData"><Download />导出 CSV</button><label class="file-button"><ArchiveRestore />选择备份<input type="file" accept=".csv,application/json" @change="restoreFile=($event.target as HTMLInputElement).files?.[0]||null"></label><button v-if="restoreFile" class="danger-button" @click="restore">确认恢复</button></article>
         <article class="tool-card password-card"><Activity /><h2>修改密码</h2><p>修改后当前设备保持登录，其他设备会自动退出。</p><form class="password-form" @submit.prevent="changePassword"><label>当前密码<input v-model="currentPassword" type="password" autocomplete="current-password" required aria-label="当前密码"></label><label>新密码<input v-model="newPassword" type="password" autocomplete="new-password" minlength="12" required aria-label="新密码" placeholder="至少 12 位"></label><label>确认新密码<input v-model="confirmPassword" type="password" autocomplete="new-password" minlength="12" required aria-label="确认新密码"></label><p v-if="passwordError" class="inline-error" role="alert">{{passwordError}}</p><button class="primary-small" :disabled="passwordBusy || !currentPassword || !newPassword || !confirmPassword">{{passwordBusy?'正在修改…':'修改密码'}}</button></form></article>
-        <article class="tool-card wide"><LogOut /><h2>登录会话</h2><div v-for="s in sessions" :key="s.id" class="session-row"><span><b>{{ s.current ? '当前设备' : '其他设备' }}</b><small>{{ s.user_agent || '未知设备' }} · {{ s.last_seen_at || s.created_at }}</small></span><button v-if="!s.current" class="danger-text" @click="revoke(s.id)">撤销</button></div><p v-if="!sessions.length">没有可显示的会话。</p></article>
-        <article v-if="audit.length" class="tool-card wide"><Activity /><h2>最近活动</h2><div v-for="(row, i) in audit" :key="row.id || i" class="audit-row"><span>{{ row.action || row.event || '变更' }}</span><small>{{ row.created_at || row.timestamp }}</small></div></article>
+        <article class="tool-card wide"><LogOut /><h2>登录会话</h2><div v-for="s in sessions" :key="s.id" class="session-row"><span class="session-copy"><b class="session-title">{{ s.current ? '当前设备' : '其他设备' }}</b><small class="session-meta"><span class="session-device">{{ formatUserAgent(s.user_agent) }}</span><span aria-hidden="true"> · </span><time :datetime="s.last_seen_at ?? s.created_at">{{ formatLocalShortDateTime(s.last_seen_at ?? s.created_at) }}</time></small></span><button v-if="!s.current" class="danger-text session-revoke" :aria-label="`撤销 ${formatUserAgent(s.user_agent)} 的登录会话`" @click="revoke(s.id)">撤销</button></div><p v-if="!sessions.length">没有可显示的会话。</p></article>
+        <article v-if="audit.length" class="tool-card wide"><Activity /><h2>最近活动</h2><div v-for="(row, i) in audit" :key="row.id || i" class="audit-row"><div class="audit-copy"><span class="audit-action" :title="row.action ?? row.event ?? undefined">{{ formatAuditAction(row.action ?? row.event) }}{{ formatAuditAction(row.action ?? row.event) === '其他操作' ? '' : formatAuditEntity(row.entity_type) }}</span><time :datetime="row.created_at ?? row.timestamp">{{ formatLocalShortDateTime(row.created_at ?? row.timestamp) }}</time></div></div></article>
       </div>
     </template>
   </section>
diff --git a/frontend/src/lib/mvp-utils.test.ts b/frontend/src/lib/mvp-utils.test.ts
index 7a2c295..7d0ea9b 100644
--- a/frontend/src/lib/mvp-utils.test.ts
+++ b/frontend/src/lib/mvp-utils.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it } from 'vitest'
-import { calendarModeLabel, changedHabitFields, clampFabPosition, countdownDayText, countdownKindLabel, dateKey, defaultView, formatHabitApiError, habitActionState, habitButtonNotice, habitButtonValue, habitWeek, isFabDrag, isHabitComplete, isHabitScheduledToday, isTaskView, nextHabitSwipeValue, nextTotalAfterLocalTaskAdd, normalizeRequiredName, numericHabitInputValue, previousHabitSwipeValue, quickTaskFields, readCountdownCache, readHabitGridCache, readStoredBoolean, readStoredNavigation, shouldToggleRowSwipe, validateHabitForm, writeCountdownCache, writeHabitGridCache, writeStoredBoolean, writeStoredNavigation } from './mvp-utils'
+import { calendarModeLabel, changedHabitFields, clampFabPosition, countdownDayText, countdownKindLabel, dateKey, defaultView, formatAuditAction, formatAuditEntity, formatHabitApiError, formatLocalShortDateTime, formatUserAgent, habitActionState, habitButtonNotice, habitButtonValue, habitWeek, isFabDrag, isHabitComplete, isHabitScheduledToday, isTaskView, nextHabitSwipeValue, nextTotalAfterLocalTaskAdd, normalizeRequiredName, numericHabitInputValue, previousHabitSwipeValue, quickTaskFields, readCountdownCache, readHabitGridCache, readStoredBoolean, readStoredNavigation, shouldToggleRowSwipe, validateHabitForm, writeCountdownCache, writeHabitGridCache, writeStoredBoolean, writeStoredNavigation } from './mvp-utils'
 
 describe('MVP view utilities', () => {
   it('formats a local date as YYYY-MM-DD', () => {
@@ -171,7 +171,40 @@ describe('MVP view utilities', () => {
     expect(habitActionState({ scheduled: true, paused: false }, true)).toEqual({ writable: false, reason: '该习惯已归档' })
   })
 
-  it('distinguishes tapping the add button from dragging it', () => {
+  it('formats conservative device and browser summaries without leaking unknown user agents', () => {
+    expect(formatUserAgent('Mozilla/5.0 (iPhone; CPU iPhone OS 18_0 like Mac OS X) AppleWebKit/605.1.15 Version/18.0 Mobile/15E148 Safari/604.1')).toBe('iPhone · Safari')
+    expect(formatUserAgent('Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 Chrome/128.0 Safari/537.36')).toBe('Mac · Chrome')
+    expect(formatUserAgent('Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/128.0 Safari/537.36 Edg/128.0')).toBe('Windows · Edge')
+    expect(formatUserAgent('Mozilla/5.0 (Linux; Android 14; Pixel 8) AppleWebKit/537.36 Chrome/128.0 Mobile Safari/537.36')).toBe('Android 手机 · Chrome')
+    expect(formatUserAgent('Mozilla/5.0 (Linux; Android 14; SM-X710) AppleWebKit/537.36 Chrome/128.0 Safari/537.36')).toBe('Android 平板 · Chrome')
+    expect(formatUserAgent('Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 Version/17.0 Mobile/15E148 Safari/604.1')).toBe('iPad · Safari')
+    expect(formatUserAgent('curl/8.7.1')).toBe('未知设备 · 未知浏览器')
+    expect(formatUserAgent(null)).toBe('未知设备 · 未知浏览器')
+  })
+
+  it('formats zoned and timezone-less ISO values in the selected local timezone', () => {
+    expect(formatLocalShortDateTime('2026-12-31T23:30:00Z', { timeZone: 'Asia/Shanghai' })).toMatch(/2027\/1\/1\s+07:30/)
+    expect(formatLocalShortDateTime('2026-09-10T14:08:00+02:00', { timeZone: 'Asia/Shanghai' })).toMatch(/2026\/9\/10\s+20:08/)
+    expect(formatLocalShortDateTime('2026-09-10T14:08:00', { timeZone: 'UTC' })).toMatch(/2026\/9\/10\s+14:08/)
+    expect(formatLocalShortDateTime('not-a-date')).toBe('未知时间')
+    expect(formatLocalShortDateTime(null)).toBe('未知时间')
+  })
+
+  it('rejects calendar dates that Date would otherwise normalize', () => {
+    expect(formatLocalShortDateTime('2026-02-30T12:00:00', { timeZone: 'UTC' })).toBe('未知时间')
+    expect(formatLocalShortDateTime('2026-02-30T12:00:00Z', { timeZone: 'UTC' })).toBe('未知时间')
+    expect(formatLocalShortDateTime('2026-04-31T12:00:00+08:00', { timeZone: 'UTC' })).toBe('未知时间')
+  })
+
+  it('localizes known audit actions and entities and hides unknown actions', () => {
+    expect(['create', 'update', 'complete', 'delete', 'archive', 'restore', 'move', 'import'].map(formatAuditAction)).toEqual(['创建', '更新', '完成', '删除', '归档', '恢复', '移动', '导入'])
+    expect(['task', 'list', 'folder', 'countdown', 'backup'].map(formatAuditEntity)).toEqual(['任务', '清单', '文件夹', '倒数日', '备份'])
+    expect(formatAuditAction('launch')).toBe('其他操作')
+    expect(formatAuditAction(null)).toBe('其他操作')
+    expect(formatAuditEntity('unknown')).toBe('内容')
+  })
+
+  it('distinguishes tapping the mobile add button from dragging it', () => {
     expect(isFabDrag(3, 4)).toBe(false)
     expect(isFabDrag(8, 0)).toBe(true)
     expect(isFabDrag(6, 7)).toBe(true)
diff --git a/frontend/src/lib/mvp-utils.ts b/frontend/src/lib/mvp-utils.ts
index d54bdce..35ce078 100644
--- a/frontend/src/lib/mvp-utils.ts
+++ b/frontend/src/lib/mvp-utils.ts
@@ -369,6 +369,59 @@ export function habitActionState(cell?: { scheduled?: boolean; paused?: boolean
   return { writable: true, reason: '' }
 }
 
+export function formatUserAgent(userAgent?: string | null): string {
+  const ua = userAgent?.trim() ?? ''
+  let device = '未知设备'
+  if (/iPhone/i.test(ua)) device = 'iPhone'
+  else if (/iPad/i.test(ua) || (/Macintosh/i.test(ua) && /Mobile/i.test(ua))) device = 'iPad'
+  else if (/Android/i.test(ua) && /Mobile/i.test(ua)) device = 'Android 手机'
+  else if (/Android/i.test(ua)) device = 'Android 平板'
+  else if (/Windows/i.test(ua)) device = 'Windows'
+  else if (/Macintosh|Mac OS X/i.test(ua)) device = 'Mac'
+  else if (/Linux/i.test(ua)) device = 'Linux'
+
+  let browser = '未知浏览器'
+  if (/Edg(?:e|iOS|A)?\//i.test(ua)) browser = 'Edge'
+  else if (/Chrome\/|CriOS\//i.test(ua)) browser = 'Chrome'
+  else if (/Firefox\/|FxiOS\//i.test(ua)) browser = 'Firefox'
+  else if (/Safari\//i.test(ua) && /Version\//i.test(ua)) browser = 'Safari'
+  return `${device} · ${browser}`
+}
+
+export function formatLocalShortDateTime(value?: string | null, options: { timeZone?: string } = {}): string {
+  const source = value?.trim()
+  if (!source) return '未知时间'
+  const calendar = /^(\d{4})-(\d{2})-(\d{2})T/.exec(source)
+  if (calendar) {
+    const [, year, month, day] = calendar
+    const probe = new Date(Date.UTC(Number(year), Number(month) - 1, Number(day)))
+    if (probe.getUTCFullYear() !== Number(year) || probe.getUTCMonth() + 1 !== Number(month) || probe.getUTCDate() !== Number(day)) return '未知时间'
+  }
+  const timezoneLess = /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}(?::\d{2}(?:\.\d{1,9})?)?$/i.test(source)
+  const date = new Date(timezoneLess ? `${source}Z` : source)
+  if (Number.isNaN(date.getTime())) return '未知时间'
+  try {
+    return new Intl.DateTimeFormat('zh-CN', { dateStyle: 'short', timeStyle: 'short', ...options }).format(date)
+  } catch {
+    return '未知时间'
+  }
+}
+
+const AUDIT_ACTIONS: Record<string, string> = {
+  create: '创建', update: '更新', complete: '完成', delete: '删除', archive: '归档', restore: '恢复', move: '移动', import: '导入',
+}
+const AUDIT_ENTITIES: Record<string, string> = {
+  task: '任务', list: '清单', folder: '文件夹', countdown: '倒数日', backup: '备份',
+}
+
+export function formatAuditAction(action?: string | null): string {
+  return action ? AUDIT_ACTIONS[action.toLowerCase()] ?? '其他操作' : '其他操作'
+}
+
+export function formatAuditEntity(entityType?: string | null): string {
+  return entityType ? AUDIT_ENTITIES[entityType.toLowerCase()] ?? '内容' : '内容'
+}
+
 export function formatHabitApiError(detail: unknown): string {
   const source = detail && typeof detail === 'object' && !Array.isArray(detail) && 'detail' in detail
     ? (detail as Record<string, unknown>).detail
diff --git a/frontend/src/style.css b/frontend/src/style.css
index fd70daf..6828c08 100644
--- a/frontend/src/style.css
+++ b/frontend/src/style.css
@@ -5,7 +5,7 @@
 .auth-shell{background:var(--surface-canvas)}.auth-card{width:min(390px,90vw);padding:38px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);display:grid;gap:16px}.brand{font-size:40px;font-weight:850;letter-spacing:-3px}.brand span{color:var(--accent)}.brand.small{font-size:29px}.auth-card p{margin:0 0 8px;color:var(--muted)}.auth-card label,.detail-form>label{display:grid;gap:7px;font-size:12px;font-weight:650;color:#756d61}.auth-card input,.detail-form input,.detail-form select{width:100%;border:1px solid var(--line);background:#fff;padding:11px;border-radius:9px;outline:none}.auth-card input:focus,.detail-form input:focus,.detail-form select:focus,.detail-form textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(241,90,41,.1)}.primary{border:0;background:var(--accent);color:#fff;padding:12px;border-radius:9px;font-weight:700;box-shadow:0 5px 12px rgba(241,90,41,.2)}.auth-card small{color:var(--danger)}
 .shell{height:100vh;display:grid;grid-template-columns:238px minmax(430px,1fr) 0;background:var(--paper);overflow:hidden;transition:grid-template-columns .22s ease}.shell.detail-open{grid-template-columns:238px minmax(430px,1fr) 350px}.shell.sidebar-collapsed{grid-template-columns:0 minmax(430px,1fr) 0}.shell.sidebar-collapsed.detail-open{grid-template-columns:0 minmax(430px,1fr) 350px}.shell.sidebar-collapsed .sidebar{width:0;min-width:0;overflow:hidden;border-right:0;padding:0}.sidebar{border-right:1px solid var(--line);background:var(--sidebar);display:flex;flex-direction:column;min-height:0;overflow:hidden}.brand-row{height:64px;padding:0 20px;display:flex;align-items:center;justify-content:space-between}.primary-nav{display:grid;padding:4px 12px 12px;gap:3px}.primary-nav button,.sidebar-management button{position:relative;display:flex;align-items:center;gap:10px;border:0;background:transparent;padding:10px 12px;border-radius:10px;color:#665e52;text-align:left}.primary-nav button:hover,.sidebar-management button:hover,.list-row:hover,.folder-row>button:hover{background:rgba(255,255,255,.52)}.primary-nav button.active,.list-row.active,.sidebar-management button.active{background:#faeae2;color:#b7421e;font-weight:650}.primary-nav button.active::before,.list-row.active::before,.sidebar-management button.active::before{content:"";position:absolute;left:2px;top:50%;width:3px;height:18px;border-radius:999px;background:var(--accent);transform:translateY(-50%)}.section-title{padding:17px 17px 7px 22px;display:flex;justify-content:space-between;align-items:center;color:#958b7d;text-transform:uppercase;letter-spacing:.08em;font-size:11px;font-weight:750}.section-title>span:last-child{display:flex}.mini-icon,.row-actions button{min-width:44px;min-height:44px;border:0;background:transparent;padding:4px;color:#8e8477}.mini-icon svg,.row-actions svg{width:14px;height:14px}.folders{flex:1;min-height:0;padding:0 10px;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:none}.folders::-webkit-scrollbar{display:none}.folder-row,.list-row{position:relative;display:flex;align-items:center;border-radius:8px}.folder-row>button,.list-row-main{flex:1;min-width:0;border:0;background:transparent;padding:8px;display:flex;align-items:center;gap:7px;color:#6d6559;text-align:left}.folder-row>button>span,.list-row-main>span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.folder-row>button svg{width:14px}.row-actions{display:flex;position:absolute;right:0;opacity:0;pointer-events:none;transition:opacity .15s}.folder-row:hover .row-actions,.folder-row:focus-within .row-actions,.list-row:hover .row-actions,.list-row:focus-within .row-actions{opacity:1;pointer-events:auto}.list-row-main{width:100%;min-height:44px;padding:8px 7px 8px 31px;color:#665f55}.list-row.active .list-row-main{color:inherit}.list-row i{flex:0 0 8px;width:8px;height:8px;background:#d89b62;border-radius:3px}.sidebar-create-wrap{position:relative}.sidebar-popover{position:absolute;z-index:12;display:grid;min-width:148px;padding:6px;background:#fffdf8;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 28px rgba(78,58,34,.14);text-transform:none;letter-spacing:0}.sidebar-create-menu{top:40px;right:0}.sidebar-popover button{min-height:38px;border:0;background:transparent;border-radius:8px;padding:7px 10px;display:flex;align-items:center;gap:8px;color:#665e52;text-align:left;white-space:nowrap;font-size:12px}.sidebar-popover button:hover{background:#fbf0e8}.sidebar-popover svg{width:15px;height:15px}.sidebar-action-mask{position:fixed;z-index:70;inset:0;display:flex;align-items:flex-end}.sidebar-action-sheet{width:214px;margin:12px;border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 28px rgba(78,58,34,.14)}.sidebar-action-sheet .app-sheet__body button{min-height:48px;border:0;background:transparent;display:flex;align-items:center;gap:10px;padding:11px 18px;text-align:left}.sidebar-action-sheet .app-sheet__body button+button{border-top:1px solid var(--line)}.sidebar-action-sheet .app-sheet__body button.danger{color:var(--danger)}.sidebar-management{display:grid;gap:2px;margin:8px 12px max(12px,env(safe-area-inset-bottom));padding-top:8px;border-top:1px solid rgba(218,207,190,.82)}.mobile-only,.bottom{display:none}.scrim{display:none}
 main{min-width:0;padding:27px 34px 50px;overflow:auto;background:var(--surface-base)}.topbar{display:flex;align-items:center;gap:14px}.topbar>div{flex:1}.topbar p{margin:0;color:var(--muted);font-size:12px}.topbar h1{font-size:27px;margin:3px 0 21px;letter-spacing:-.03em}.topbar.today-topbar h1{margin-bottom:4px}.today-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:18px 0 8px;padding:6px;background:#fff;border:1px solid rgba(231,221,204,.86);border-radius:14px;box-shadow:0 3px 14px rgba(81,61,38,.04)}.today-track{min-width:0;border:0;background:transparent;border-radius:9px;padding:9px 11px;display:grid;gap:8px;text-align:left;transition:background .15s ease}.today-track+.today-track{border-left:1px solid var(--line);border-radius:0 9px 9px 0}.today-track:hover{background:#fff9f2}.today-track:focus-visible{outline:2px solid rgba(241,90,41,.3);outline-offset:1px}.today-track-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.today-track-head strong{font-size:14px;line-height:1.2;color:#403a32}.today-track-rail{display:block;height:5px;overflow:hidden;border-radius:999px;background:#eee7dc}.today-track-fill{display:block;width:0;height:100%;border-radius:inherit;background:#71856b;transition:width .35s ease}.today-habit-track .today-track-fill{background:var(--accent)}.today-section-anchor{scroll-margin-top:16px}.search{margin-bottom:18px;display:flex;align-items:center;gap:8px;width:min(260px,36%);padding:8px 10px;background:#faf7f0;border:1px solid var(--line);border-radius:9px;color:var(--muted)}.search input{min-width:0;width:100%;border:0;outline:0;background:transparent}.search kbd{font-size:10px;white-space:nowrap;border:1px solid var(--line);padding:2px 4px;border-radius:4px}.list-toolbar{height:42px;display:flex;align-items:center;gap:14px;color:var(--muted);font-size:12px}.list-toolbar label{margin-right:auto}.link{border:0;background:transparent;color:var(--accent);padding:3px;display:inline-flex;gap:3px;align-items:center}.link svg{width:14px}.task-list{transition:opacity .2s}.task-list.loading{opacity:.45}.task-row{border-left:0;--swipe-x:0px;min-height:53px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:4px 8px;transition:background .15s,transform .18s ease;position:relative;overflow:hidden;isolation:isolate}.task-row.swipeable{touch-action:pan-y;transform:translate(var(--swipe-x),var(--reorder-y,0px))}.task-row.swipeable:not([style*="0px"]){transition:none}.task-row:hover,.task-row.selected{background:rgba(250,240,229,.75)}.task-row:hover:not(.reordering){transform:translate(calc(var(--swipe-x) + 2px),var(--reorder-y,0px))}.check{width:19px;height:19px;flex:0 0 19px;border:1.6px solid #c6baa8;background:#fff;border-radius:5px;padding:0;display:grid;place-items:center}.check svg{width:13px}.task-check{width:44px;height:44px;flex:0 0 44px;border:0;background:transparent;padding:0;display:grid;place-items:center;border-radius:9px}.task-check-mark{width:19px;height:19px;border:1.6px solid #c6baa8;background:#fff;border-radius:50%;display:grid;place-items:center;transition:background .15s ease,border-color .15s ease,color .15s ease,transform .15s ease}.task-check-mark svg{width:13px}.task-check:hover .task-check-mark{transform:scale(1.06);border-color:#9d8f7b}.task-check:focus-visible{outline:2px solid rgba(241,90,41,.32);outline-offset:1px}.task-check[aria-pressed="true"] .task-check-mark{background:#71856b;border-color:#71856b;color:#fff}.task-check-mark.p1{border-color:#4b93d1}.task-check-mark.p2{border-color:#d79b25}.task-check-mark.p3{border-color:#dc4b30}.check.p1{border-color:#4b93d1}.check.p2{border-color:#d79b25}.check.p3{border-color:#dc4b30}.done .check{background:#afa595;color:white}.task-main{border:0;background:transparent;flex:1;min-width:0;text-align:left;padding:8px 0}.task-main strong{display:block;font-size:14px;font-weight:590;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.done .task-main strong{text-decoration:line-through;color:#9b9388}.meta{display:flex;align-items:center;gap:9px;color:#9b9286;font-size:11px;margin-top:3px}.meta span{display:flex;align-items:center;gap:3px}.meta svg{width:12px}.priority{font-size:10px;font-weight:750;padding:3px 6px;border-radius:5px}.priority.p1{color:#3f80ba;background:#e5f2fc}.priority.p2{color:#a56b05;background:#fff1cb}.priority.p3{color:#bd3827;background:#fde2dc}.icon,.ghost{min-width:44px;min-height:44px;border:0;background:transparent;display:grid;place-items:center;padding:5px;border-radius:6px}.mobile-only{display:none}.ghost{opacity:0;color:#9d9387}.task-row:hover .ghost{opacity:1}.ghost:hover{color:var(--danger);background:#fce7e2}.restore{display:flex;align-items:center;gap:5px;border:1px solid var(--line);background:#fff;border-radius:7px;padding:6px 8px;font-size:12px}.restore svg{width:14px}.subtask{padding-left:53px;min-height:42px;color:#6d655b}.subtask>svg{width:13px;color:#bbb0a2}.empty{min-height:300px;display:grid;place-items:center;align-content:center;gap:8px;color:#aaa094;text-align:center}.empty>svg{width:38px;height:38px;color:#d8cabb}.empty b{color:#6f675c}.empty span{font-size:13px}
-.drag-handle{width:34px;height:44px;flex:0 0 34px;display:grid;place-items:center;border:0;background:transparent;color:#b3a795;cursor:grab;touch-action:none;border-radius:8px}.drag-handle:active{cursor:grabbing}.drag-handle:disabled{opacity:.3;cursor:not-allowed}.drag-handle svg{width:17px;height:17px}.reordering{opacity:.78;z-index:4;box-shadow:0 12px 28px rgba(78,58,34,.18)!important;transition:none!important;pointer-events:none}.reorder-target{box-shadow:inset 0 2px 0 var(--accent)}
+.drag-handle{width:44px;min-width:44px;height:44px;flex:0 0 44px;display:grid;place-items:center;border:0;background:transparent;color:#b3a795;cursor:grab;touch-action:none;border-radius:8px}.drag-handle:active{cursor:grabbing}.drag-handle:disabled{opacity:.3;cursor:not-allowed}.drag-handle svg{width:17px;height:17px}.reordering{opacity:.78;z-index:4;box-shadow:0 12px 28px rgba(78,58,34,.18)!important;transition:none!important;pointer-events:none}.reorder-target{box-shadow:inset 0 2px 0 var(--accent)}
 .list-drag-handle{width:44px;min-width:44px;height:44px;display:grid;place-items:center;border:0;background:transparent;color:#ad9f8c;cursor:grab;touch-action:none;border-radius:8px}.list-drag-handle svg{width:15px;height:15px}.list-row{touch-action:pan-y}.list-row.list-dragging{position:relative;z-index:8;opacity:.8;box-shadow:0 10px 24px rgba(78,58,34,.2);transform:translateY(var(--list-drag-y));transition:none;pointer-events:none;background:#fffaf4}.folder-row.list-drop-target{background:var(--accent-soft);box-shadow:inset 3px 0 0 var(--accent)}.list-root-drop.list-drop-target{background:var(--accent-soft);color:#b7421e;border-radius:9px}.list-row.list-reorder-target{box-shadow:inset 0 2px 0 var(--accent)}.list-move-menu{display:grid;gap:4px;padding:6px 0 6px 28px}.list-move-menu button{min-height:42px}.list-move-menu button:disabled,.sidebar-action-sheet .app-sheet__body button:disabled{opacity:.45;cursor:default}
 .archived-lists{position:relative;margin-top:4px}.archived-lists-toggle{min-height:44px;width:100%;display:flex;align-items:center;gap:8px;border:0;border-radius:9px;background:transparent;padding:0 12px;color:#81786c;text-align:left;font-size:12px;font-weight:650}.archived-lists-toggle:hover:not(:disabled){background:rgba(255,255,255,.52)}.archived-lists-toggle:focus-visible,.archived-row-menu-trigger:focus-visible,.archived-row-actions button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.archived-lists-toggle:disabled{cursor:default;color:#aaa196}.archived-lists-toggle svg{width:15px;height:15px;transition:transform .16s ease}.archived-lists-toggle svg.expanded{transform:rotate(90deg)}.archived-list-items{display:grid;transition:opacity .16s ease}.archived-row{min-height:44px;display:grid;grid-template-columns:minmax(0,1fr) 44px;align-items:center;padding-left:35px;color:#746c61}.archived-row-label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}.archived-row-menu{display:grid;place-items:center}.archived-row-menu-trigger{width:44px;height:44px;display:grid;place-items:center;border:0;border-radius:9px;background:transparent;color:#8e8477}.archived-row-menu-trigger svg{width:15px;height:15px}.archived-action-mask{display:contents}.archived-row-actions{position:fixed;z-index:70;width:164px;display:grid;gap:2px;padding:6px;background:#fffdf8;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}.archived-row-actions button{min-height:44px;display:flex;align-items:center;gap:9px;border:0;border-radius:8px;background:transparent;padding:8px 10px;text-align:left;font-size:12px}.archived-row-actions button:hover{background:#f8f1e8}.archived-row-actions svg{width:15px;height:15px}@media(max-width:930px){.archived-action-mask{display:block;position:fixed;z-index:60;inset:0;background:rgba(45,38,31,.3)}.archived-row-actions{position:fixed;z-index:61;left:0;right:0;top:auto;bottom:0;width:100%;padding:12px 16px calc(16px + env(safe-area-inset-bottom));border-radius:22px 22px 0 0}.archived-row-actions button{font-size:14px}}@media(prefers-reduced-motion:reduce){.archived-lists-toggle svg,.archived-list-items{transition:none}}
 .detail{min-width:0;border-left:1px solid var(--line);background:#faf7f0;overflow:auto}.detail-head{height:57px;display:flex;align-items:center;justify-content:space-between;padding:0 21px;border-bottom:1px solid var(--line);font-size:12px;font-weight:700;color:#80766a;text-transform:uppercase;letter-spacing:.08em}.paper{margin:22px;padding:28px 20px;min-height:180px;background:#fff;border:1px solid var(--line);border-radius:11px;box-shadow:0 4px 18px rgba(76,57,34,.05);display:grid;place-items:center;align-content:center;text-align:center;color:#8f8578}.paper svg{width:32px;height:32px;color:#ceb8a4;margin-bottom:12px}.paper b{color:#625b50}.paper p{font-size:13px;line-height:1.6}.detail-form{min-width:0;grid-template-columns:minmax(0,1fr);padding:19px;display:grid;gap:15px}.detail-form>*{min-width:0}.detail-title{display:flex;align-items:flex-start;gap:10px}.check.large{margin-top:8px;width:22px;height:22px;flex-basis:22px}.detail-title textarea{flex:1;border:0;background:transparent;resize:none;outline:none;font-size:19px;line-height:1.4;font-weight:700}.detail-form>label{grid-template-columns:80px 1fr;align-items:center}.detail-form>label input,.detail-form>label select{padding:8px}.task-detail-field-input{width:190px!important;max-width:100%;justify-self:end}.task-detail-due-input{padding-inline:9px!important}.field{display:grid;gap:7px}.field-label{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:700;color:#756d61}.hint{font-size:12px;color:#a49a8d}.markdown .field-label>span:last-child{display:flex;background:#eee7dc;padding:2px;border-radius:6px}.markdown .field-label button{border:0;background:transparent;padding:4px 8px;border-radius:5px;font-size:11px}.markdown .field-label button.active{background:#fff;color:var(--accent)}.markdown textarea{border:1px solid var(--line);background:#fff;border-radius:9px;padding:11px;resize:vertical;outline:none;font:13px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace}.markdown-preview{min-height:160px;padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:9px;font-size:13px;line-height:1.65;overflow-wrap:anywhere}.markdown-preview h1{font-size:20px}.markdown-preview h2{font-size:16px}.markdown-preview p{margin:8px 0}.markdown-preview code{background:#f2ece2;padding:2px 4px;border-radius:4px}.markdown-preview a{color:var(--accent)}.subtasks{display:grid;gap:5px}.subtask-detail{width:100%;min-width:0;max-width:100%;overflow-wrap:anywhere;word-break:break-word;white-space:normal;display:flex;align-items:center;gap:8px;border:0;background:#fff;padding:8px;border-radius:7px;text-align:left}.subtask-detail .check{pointer-events:none}.strike{text-decoration:line-through;color:var(--muted)}.detail-actions{display:flex;justify-content:space-between;align-items:center;padding-top:10px;border-top:1px solid var(--line)}.secondary{border:1px solid var(--line);background:#fff;padding:8px 11px;border-radius:8px;font-weight:650}.danger-text{border:0;background:transparent;color:var(--danger);display:flex;align-items:center;gap:5px;font-size:12px}.danger-text svg{width:14px}
@@ -31,8 +31,8 @@ main{min-width:0;padding:27px 34px 50px;overflow:auto;background:var(--surface-b
 .habit-row>.icon.ghost{width:44px;height:44px;flex:0 0 44px}.habit-check{margin-left:-4px}.habit-row.done .habit-check .task-check-mark{background:#71856b;border-color:#71856b;color:#fff}.habit-toolbar{display:flex;align-items:center;gap:12px;justify-content:flex-end;color:var(--muted);font-size:12px}.habit-toolbar label{display:inline-flex;align-items:center;gap:6px}.habit-toolbar input{margin:0}.habit-toolbar-today{justify-content:flex-start;margin:0 0 2px 2px}.habit-detail-mask{position:fixed;z-index:85;inset:0;background:rgba(45,38,31,.36);display:grid;place-items:end center;padding:20px}.habit-detail-sheet{width:min(500px,100%);background:#fffdf8;border:1px solid var(--line);border-radius:20px;box-shadow:0 12px 36px rgba(56,40,24,.18);padding:18px;display:grid;gap:16px}.habit-detail-sheet header{display:flex;align-items:center;justify-content:space-between;gap:10px}.habit-detail-sheet header small{color:var(--muted);font-size:11px}.habit-detail-sheet header h3{margin:2px 0 0;font-size:19px}.habit-detail-sheet header button{width:44px;height:44px;border:0;background:transparent;display:grid;place-items:center}.habit-detail-progress{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-block:1px solid var(--line);font-size:12px;color:var(--muted)}.habit-detail-progress strong{font-size:14px;color:#3c372f}.habit-detail-sheet footer{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}.habit-detail-sheet .habit-delete-button{font-weight:750}
 .empty-panel{text-align:center;color:var(--muted);display:grid;place-items:center;gap:10px}.today-empty-panel{min-height:130px}.empty-action{margin-top:4px;color:#655d52}.empty-action svg{width:15px;height:15px}
 .field-error{display:block;color:var(--danger);font-size:12px;line-height:1.45;overflow-wrap:anywhere}.habit-state-note{color:var(--muted);font-size:11px}.habit-weekdays{min-width:0;border:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.habit-weekdays legend{width:100%;font-size:12px;font-weight:650}.habit-weekdays label{min-height:44px;display:flex;align-items:center;gap:4px}.habit-compose-sheet input,.habit-compose-sheet select{max-width:100%}.task-check:disabled{cursor:not-allowed;opacity:.55}
-.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tool-card{display:flex;flex-direction:column;align-items:flex-start;gap:10px}.tool-card>h2{margin:0;font-size:1.17em}.tool-card>svg{color:var(--accent);width:25px;height:25px}.tool-card p{margin:0;color:var(--muted);font-size:13px}.tool-card.wide{grid-column:1/-1}.password-form{width:100%;display:grid;gap:10px}.password-form label{display:grid;gap:6px;color:#675f54;font-size:12px;font-weight:650}.password-form input{width:100%;border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 12px;outline:none}.password-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(241,90,41,.1)}.password-form button{justify-self:start}.file-button input{display:none}.tool-card pre{width:100%;max-height:180px;overflow:auto;background:#f8f3e8;padding:10px;border-radius:8px;font-size:10px}.session-row,.audit-row{width:100%;display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:9px 0}.session-row span{display:grid}.session-row small,.audit-row small{color:var(--muted);font-size:11px}.inline-error{padding:9px;border-radius:8px;color:var(--danger);background:#fff0ed}.settings.active{background:var(--accent-soft);color:#b7421e;font-weight:700}
-@media(max-width:930px){.task-row,.habit-row,.countdown-row{min-height:62px;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:none}.task-list,.habit-list,.countdown-timeline{display:grid;gap:8px}.task-row{padding:4px 7px}.task-row:hover,.task-row.selected{background:#fffaf5}.habit-row{padding:4px 7px}.countdown-row,.countdown-row:first-of-type{border:1px solid var(--line)}.countdown-row{grid-template-columns:minmax(0,1fr) 72px;padding:8px 9px;gap:8px}.task-main strong,.habit-name,.countdown-main>b{font-size:14px;font-weight:650}.meta,.countdown-main>small,.countdown-state small{font-size:11px;color:var(--muted)}.habit-progress{font-size:16px}.drag-handle{width:36px;flex-basis:36px}.task-check{width:44px;flex-basis:44px}.countdown-icon{width:36px;height:36px;border-radius:10px}.countdown-state strong{font-size:24px}.countdown-group{gap:8px}.countdown-group>h3{padding-left:3px}.habit-detail-mask{padding:0}.habit-detail-sheet{width:100%;border-radius:22px 22px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom))}}
+.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.tool-card{display:flex;flex-direction:column;align-items:flex-start;gap:10px}.tool-card>h2{margin:0;font-size:1.17em}.tool-card>svg{color:var(--accent);width:25px;height:25px}.tool-card p{margin:0;color:var(--muted);font-size:13px}.tool-card.wide{grid-column:1/-1}.password-form{width:100%;display:grid;gap:10px}.password-form label{display:grid;gap:6px;color:#675f54;font-size:12px;font-weight:650}.password-form input{width:100%;border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 12px;outline:none}.password-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(241,90,41,.1)}.password-form button{justify-self:start}.file-button input{display:none}.tool-card pre{width:100%;max-height:180px;overflow:auto;background:#f8f3e8;padding:10px;border-radius:8px;font-size:10px}.session-row,.audit-row{width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid var(--line);padding:9px 0}.session-copy{min-width:0;flex:1;display:grid}.session-title{line-height:1.4}.session-meta{min-width:0;display:flex;flex-wrap:wrap;align-items:center;line-height:1.45}.session-device{min-width:0;overflow-wrap:anywhere}.session-revoke{min-width:44px;min-height:44px;flex:0 0 auto;justify-content:center}.audit-copy{min-width:0;display:grid;gap:2px}.audit-action{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow-wrap:anywhere}.session-row small,.audit-row time{color:var(--muted);font-size:11px}.inline-error{padding:9px;border-radius:8px;color:var(--danger);background:#fff0ed}.settings.active{background:var(--accent-soft);color:#b7421e;font-weight:700}
+@media(max-width:930px){.task-row,.habit-row,.countdown-row{min-height:62px;background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:none}.task-list,.habit-list,.countdown-timeline{display:grid;gap:8px}.task-row{padding:4px 7px}.task-row:hover,.task-row.selected{background:#fffaf5}.habit-row{padding:4px 7px}.countdown-row,.countdown-row:first-of-type{border:1px solid var(--line)}.countdown-row{grid-template-columns:minmax(0,1fr) 72px;padding:8px 9px;gap:8px}.task-main strong,.habit-name,.countdown-main>b{font-size:14px;font-weight:650}.meta,.countdown-main>small,.countdown-state small{font-size:11px;color:var(--muted)}.habit-progress{font-size:16px}.task-check{width:44px;flex-basis:44px}.countdown-icon{width:36px;height:36px;border-radius:10px}.countdown-state strong{font-size:24px}.countdown-group{gap:8px}.countdown-group>h3{padding-left:3px}.habit-detail-mask{padding:0}.habit-detail-sheet{width:100%;border-radius:22px 22px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom))}}
 @media(max-width:800px){.settings-grid{grid-template-columns:1fr}.tool-card.wide{grid-column:auto}.habit-main{padding:10px 2px}.numeric-action input{width:62px}}
 @media(max-width:390px){.habit-detail-sheet,.habit-compose-sheet{width:100%;max-width:100%}.habit-detail-sheet .app-sheet__header>button,.habit-compose-sheet .app-sheet__header>button{min-width:44px;min-height:44px}.habit-detail-sheet .app-sheet__footer>button,.habit-detail-sheet .app-sheet__danger>button,.habit-compose-sheet .app-sheet__footer>button{min-height:44px}}
 .unified-fab{display:grid;place-items:center;position:fixed;z-index:60;right:20px;bottom:22px;width:56px;height:56px;border:0;border-radius:50%;background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(241,90,41,.28);transition:transform .16s ease,box-shadow .16s ease;touch-action:none;user-select:none}.unified-fab svg{width:25px;height:25px}.unified-fab:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(241,90,41,.32)}.unified-fab:active{transform:scale(.96)}.unified-fab.dragging{transform:scale(1.06);box-shadow:0 12px 28px rgba(241,90,41,.36)}.app-sheet-mask.app-sheet-mask{background:var(--sheet-scrim);overscroll-behavior:contain}.app-sheet{min-height:0;overflow:hidden;background:var(--paper)}.app-sheet__header{min-height:64px;flex:0 0 64px;position:sticky;z-index:3;top:0;background:var(--paper);border-bottom:1px solid var(--line);padding:0 18px}.app-sheet__header>div{min-width:0}.app-sheet__header h2,.app-sheet__header h3{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-sheet__header>button{width:44px;height:44px;flex:0 0 44px;display:grid;place-items:center;border:0;background:transparent;border-radius:10px}.app-sheet__body{min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;display:grid;gap:14px;padding:16px 18px}.app-sheet__footer{position:sticky;bottom:0;z-index:3;margin:0;background:var(--paper);border-top:1px solid var(--line);padding:12px 18px;padding-bottom:calc(16px + env(safe-area-inset-bottom));display:flex;justify-content:flex-end;gap:8px}.app-sheet__danger{border-top:1px solid #f1d4cd;background:#fff8f6;padding:12px 18px;padding-bottom:calc(16px + env(safe-area-inset-bottom));display:flex;justify-content:flex-end}.app-sheet--actions .app-sheet__body{gap:6px;padding:8px 16px calc(16px + env(safe-area-inset-bottom))}.app-sheet--actions .app-sheet__body>button{min-height:50px;width:100%;display:flex;align-items:center;gap:12px;border:0;background:#fff;padding:13px;border-radius:12px;text-align:left}
diff --git a/frontend/src/style.test.ts b/frontend/src/style.test.ts
index d5a0d96..4e70372 100644
--- a/frontend/src/style.test.ts
+++ b/frontend/src/style.test.ts
@@ -17,6 +17,13 @@ describe('mobile navigation styles', () => {
     expect(app).toContain('<span>设置</span>')
   })
 
+  it('marks only exact mobile destinations active and exposes aria-current only there', () => {
+    for (const view of ['today', 'habits', 'countdowns', 'settings']) {
+      expect(app).toContain(`:class="{active:activeView==='${view}'}" :aria-current="activeView==='${view}' ? 'page' : undefined"`)
+    }
+    expect(app).not.toContain("activeView==='tasks'||activeView==='upcoming'||activeView==='trash'||activeView==='settings'")
+  })
+
   it('keeps the mobile More sheet visible when it is rendered', () => {
     expect(css).not.toContain('.more-mask{display:none}')
     expect(css).toContain('@media(max-width:930px){.shell')
@@ -31,6 +38,40 @@ describe('mobile navigation styles', () => {
   })
 })
 
+describe('settings sessions and audit activity', () => {
+  it('renders readable session metadata, local time, and an accessible revoke action', () => {
+    expect(mvpPanel).toContain('class="session-copy"')
+    expect(mvpPanel).toContain('class="session-title"')
+    expect(mvpPanel).toContain('class="session-meta"')
+    expect(mvpPanel).toContain('class="session-device"')
+    expect(mvpPanel).toContain(':datetime="s.last_seen_at ?? s.created_at"')
+    expect(mvpPanel).toContain(':aria-label="`撤销 ${formatUserAgent(s.user_agent)} 的登录会话`"')
+    expect(mvpPanel).toContain('class="danger-text session-revoke"')
+  })
+
+  it('does not expose the raw user agent in session DOM attributes', () => {
+    expect(mvpPanel).not.toContain(':title="s.user_agent || undefined"')
+    expect(mvpPanel).not.toMatch(/<span class="session-device"[^>]*s\.user_agent[^>]*>/)
+    expect(mvpPanel).toContain('<span class="session-device">{{ formatUserAgent(s.user_agent) }}</span>')
+  })
+
+  it('renders localized audit copy and semantic local time', () => {
+    expect(mvpPanel).toContain('class="audit-copy"')
+    expect(mvpPanel).toContain('class="audit-action"')
+    expect(mvpPanel).toContain("formatAuditAction(row.action ?? row.event)")
+    expect(mvpPanel).toContain('formatAuditEntity(row.entity_type)')
+    expect(mvpPanel).toContain(':datetime="row.created_at ?? row.timestamp"')
+  })
+
+  it('keeps revoke and all existing drag handles at 44px without enlarging icons', () => {
+    expect(css).toContain('.drag-handle{width:44px;min-width:44px;height:44px;flex:0 0 44px;')
+    expect(css).toContain('.drag-handle svg{width:17px;height:17px}')
+    expect(css).not.toContain('.drag-handle{width:36px;flex-basis:36px}')
+    expect(css).toContain('.session-copy{min-width:0;flex:1;')
+    expect(css).toContain('.session-revoke{min-width:44px;min-height:44px;flex:0 0 auto;')
+  })
+})
+
 describe('solid cream material system', () => {
   it('defines three opaque cream surfaces, warm borders, restrained depth, and the radius scale', () => {
     expect(css).toContain('--surface-canvas:#f6f0e5')