diff --git a/src/components/dialog/SubscribeFilesDialog.vue b/src/components/dialog/SubscribeFilesDialog.vue
index 321a7c0f..4b0bb039 100644
--- a/src/components/dialog/SubscribeFilesDialog.vue
+++ b/src/components/dialog/SubscribeFilesDialog.vue
@@ -64,15 +64,19 @@ const subScribeInfo = ref<SubscrbieInfo>()
 // 是否加载中
 const loading = ref(false)
 
+const loadError = ref(false)
+
 /**
  * 调用 API 查询订阅文件信息。
  */
 async function loadSubscribeFilesInfo() {
   try {
     loading.value = true
+    loadError.value = false
     subScribeInfo.value = await api.get(`subscribe/files/${props.subid}`)
   } catch (e) {
     console.log(e)
+    loadError.value = true
   } finally {
     loading.value = false
   }
@@ -294,7 +298,11 @@ const episodeGroups = computed<SubscribeEpisodeGroup[]>(() => {
 const totalCount = computed(() => {
   const subscribeTotal = subscribe.value?.total_episode ?? 0
   if (subscribe.value?.type === '电影') return Math.max(episodeGroups.value.length, 1)
-  return Math.max(subscribeTotal, episodeGroups.value.length)
+
+  // 电视剧以起始集到总集数作为目标范围，自定义起始集需要换算为实际集数。
+  const startEpisode = subscribe.value?.start_episode || 1
+  const targetCount = subscribeTotal >= startEpisode ? subscribeTotal - startEpisode + 1 : 0
+  return Math.max(targetCount, episodeGroups.value.length)
 })
 
 // 已下载集数
@@ -402,7 +410,15 @@ onBeforeMount(() => {
       <LoadingBanner v-if="loading" />
 
       <VCardText v-else class="subscribe-files-dialog__body">
-        <div v-if="subScribeInfo?.subscribe" class="subscribe-files-shell">
+        <div v-if="loadError" class="subscribe-files-empty subscribe-files-empty--standalone">
+          <VIcon icon="mdi-folder-alert-outline" size="40" />
+          <div>{{ t('error.serverError') }}</div>
+          <VBtn color="primary" prepend-icon="mdi-refresh" @click="loadSubscribeFilesInfo">
+            {{ t('common.retry') }}
+          </VBtn>
+        </div>
+
+        <div v-else-if="subScribeInfo?.subscribe" class="subscribe-files-shell">
           <section class="subscribe-files-hero" :style="heroStyle">
             <div class="subscribe-files-hero__shade" />
             <div class="subscribe-files-hero__content">
@@ -424,7 +440,7 @@ onBeforeMount(() => {
                 </div>
                 <h2 class="subscribe-files-hero__title">{{ subscribe?.name }}</h2>
                 <div class="subscribe-files-hero__chips">
-                  <VChip v-if="subscribe?.season" color="primary" variant="flat" size="small">
+                  <VChip v-if="subscribe?.season != null" color="primary" variant="flat" size="small">
                     {{ t('dialog.subscribeFiles.season', { number: subscribe.season }) }}
                   </VChip>
                   <VChip v-if="subscribe?.year" variant="tonal" size="small">{{ subscribe.year }}</VChip>
diff --git a/src/components/dialog/SubscribeHistoryDialog.vue b/src/components/dialog/SubscribeHistoryDialog.vue
index a46b1fa1..7ba2afd9 100644
--- a/src/components/dialog/SubscribeHistoryDialog.vue
+++ b/src/components/dialog/SubscribeHistoryDialog.vue
@@ -6,10 +6,13 @@ import { useDisplay } from 'vuetify'
 import ProgressDialog from './ProgressDialog.vue'
 import { useI18n } from 'vue-i18n'
 import { mediaTypeDict } from '@/api/constants'
+import { useToast } from 'vue-toastification'
 
 // 国际化
 const { t } = useI18n()
 
+const $toast = useToast()
+
 // 显示器宽度
 const display = useDisplay()
 
@@ -97,9 +100,12 @@ async function reSubscribe(item: Subscribe) {
     const result: { [key: string]: any } = await api.post('subscribe/', item)
     if (result.success) {
       emit('save')
+    } else {
+      $toast.error(t('subscribe.requestFailed'))
     }
   } catch (e) {
     console.error(e)
+    $toast.error(t('subscribe.requestFailed'))
   }
   progressDialog.value = false
 }
@@ -113,6 +119,7 @@ async function deleteHistory(item: Subscribe) {
     }
   } catch (e) {
     console.error(e)
+    $toast.error(t('subscribe.requestFailed'))
   }
 }
 
@@ -158,6 +165,14 @@ function getMediaTypeText(type: string | undefined) {
           <template #loading>
             <LoadingBanner />
           </template>
+          <template #error="{ props: retryProps }">
+            <div class="d-flex flex-column align-center ga-2 py-4" role="alert">
+              <span class="text-medium-emphasis">{{ t('subscribe.requestFailed') }}</span>
+              <VBtn v-bind="retryProps" prepend-icon="mdi-refresh" size="small" variant="tonal">
+                {{ t('common.retry') }}
+              </VBtn>
+            </div>
+          </template>
           <template #empty />
           <VVirtualScroll v-if="historyList.length > 0" renderless :items="historyList" :item-height="104">
             <template #default="{ item, itemRef }">
diff --git a/src/components/dialog/SubscribeSeasonDialog.vue b/src/components/dialog/SubscribeSeasonDialog.vue
index e546453b..34b3d23a 100644
--- a/src/components/dialog/SubscribeSeasonDialog.vue
+++ b/src/components/dialog/SubscribeSeasonDialog.vue
@@ -185,8 +185,9 @@ async function getEpisodeGroups() {
   }
 }
 
-// 查询TMDB的所有季信息
+// 查询媒体的季信息
 async function getMediaSeasons() {
+  isRefreshed.value = false
   try {
     seasonInfos.value = await api.get('media/seasons', {
       params: {
@@ -196,9 +197,10 @@ async function getMediaSeasons() {
         season: props.media?.season,
       },
     })
-    isRefreshed.value = true
   } catch (error) {
     console.error(error)
+  } finally {
+    isRefreshed.value = true
   }
 }
 
@@ -414,6 +416,7 @@ function syncSelectedSeason() {
   })
 }
 
+// 季信息与缺失状态共享剧集组上下文，剧集组变化时统一刷新两者。
 watchEffect(() => {
   if (episodeGroup.value) getGroupSeasons()
   else getMediaSeasons()
@@ -434,10 +437,7 @@ watch(episodeGroupOptions, () => nextTick(updateEpisodeGroupScrollState), { flus
 
 onMounted(async () => {
   window.addEventListener('resize', updateEpisodeGroupScrollState)
-  // 自定义剧集组由 watchEffect 首次加载，避免默认季数据异步覆盖它。
-  if (!episodeGroup.value) getMediaSeasons()
   getEpisodeGroups()
-  checkSeasonsNotExists()
 })
 
 onBeforeUnmount(() => {
diff --git a/src/components/dialog/__tests__/SubscribeFilesDialog.spec.ts b/src/components/dialog/__tests__/SubscribeFilesDialog.spec.ts
new file mode 100644
index 00000000..3dfe0973
--- /dev/null
+++ b/src/components/dialog/__tests__/SubscribeFilesDialog.spec.ts
@@ -0,0 +1,512 @@
+import type { Subscribe, SubscrbieInfo } from '@/api/types'
+import SubscribeFilesDialog from '@/components/dialog/SubscribeFilesDialog.vue'
+import { screen, waitFor, within } from '@testing-library/vue'
+import userEvent from '@testing-library/user-event'
+import { server } from '@tests/support/msw/server'
+import { subscribeApiUrls, subscribeFilesHandler } from '@tests/support/msw/handlers/subscribe'
+import { renderWithProviders } from '@tests/support/render'
+import { HttpResponse, http, type JsonBodyType } from 'msw'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+
+const mocks = vi.hoisted(() => ({
+  copyToClipboard: vi.fn(),
+  toastError: vi.fn(),
+  toastSuccess: vi.fn(),
+}))
+
+vi.mock('@/@core/utils/navigator', () => ({
+  copyToClipboard: (...args: unknown[]) => mocks.copyToClipboard(...args),
+}))
+
+vi.mock('vue-toastification', () => ({
+  useToast: () => ({ error: mocks.toastError, success: mocks.toastSuccess }),
+}))
+
+function createSubscribe(overrides: Partial<Subscribe> = {}): Subscribe {
+  return {
+    best_version: 0,
+    current_priority: 0,
+    date: '2026-07-17 10:00:00',
+    id: 3101,
+    last_update: '2026-07-17 10:00:00',
+    name: '文件测试剧',
+    page_open: false,
+    show_edit_dialog: false,
+    sites: [],
+    state: 'R',
+    tmdbid: 31010,
+    type: '电视剧',
+    username: 'tester',
+    year: '2026',
+    ...overrides,
+  }
+}
+
+function createFilesInfo(overrides: Partial<SubscrbieInfo> = {}): SubscrbieInfo {
+  return {
+    episodes: {
+      1: {
+        download: [],
+        library: [],
+        title: '第一集',
+      },
+    },
+    subscribe: createSubscribe({ season: 1, total_episode: 1 }),
+    ...overrides,
+  }
+}
+
+function createTvFilesInfo(): SubscrbieInfo {
+  return createFilesInfo({
+    episodes: {
+      10: {
+        description: '第十集简介',
+        download: [],
+        library: [],
+        title: '第十集',
+      },
+      2: {
+        description: '第二集简介',
+        download: [
+          {
+            downloader: 'Transmission',
+            file_path: '/downloads/show.S01E02.1080p.mkv',
+            hash: 'hash-episode-2',
+            site_name: '站点二',
+            torrent_title: 'Show.S01E02.1080p.WEB-DL',
+          },
+        ],
+        library: [
+          {
+            file_path: '/media/show.S01E02.1080p.mkv',
+            storage: 'local-disk',
+          },
+        ],
+        title: '第二集',
+      },
+      1: {
+        backdrop: 'https://image.example.com/t/p/w500/episode-1.jpg',
+        description: '第一集简介',
+        download: [
+          {
+            downloader: 'qBittorrent',
+            file_path: '/downloads/show.S01E01.2160p.mkv',
+            hash: 'hash-episode-1',
+            site_name: '站点一',
+            torrent_title: 'Show.S01E01.2160p.WEB-DL',
+          },
+        ],
+        library: [],
+        title: '第一集',
+      },
+    },
+    subscribe: createSubscribe({
+      backdrop: 'https://image.example.com/t/p/w780/show.jpg',
+      description: '整剧简介',
+      poster: 'https://image.example.com/poster.jpg',
+      season: 1,
+      total_episode: 4,
+    }),
+  })
+}
+
+function createDeferred<T>() {
+  let resolve!: (value: T) => void
+  const promise = new Promise<T>(done => {
+    resolve = done
+  })
+  return { promise, resolve }
+}
+
+function setViewport(width: number) {
+  Object.defineProperty(window, 'innerWidth', { configurable: true, value: width, writable: true })
+  window.dispatchEvent(new Event('resize'))
+}
+
+function useFilesResponse(
+  id: number,
+  response: JsonBodyType,
+  status = 200,
+  onRequest: (url: URL) => void = () => {},
+) {
+  server.use(subscribeFilesHandler(id, response, status, onRequest))
+}
+
+async function renderDialog(subid: number) {
+  const close = vi.fn()
+  const result = await renderWithProviders(SubscribeFilesDialog, {
+    initialState: {
+      globalSettings: {
+        data: { GLOBAL_IMAGE_CACHE: false },
+      },
+    },
+    props: {
+      modelValue: true,
+      subid,
+      onClose: close,
+    },
+  })
+
+  return { ...result, close }
+}
+
+describe('SubscribeFilesDialog', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    vi.spyOn(console, 'log').mockImplementation(() => {})
+    setViewport(1280)
+  })
+
+  it('sorts TV episodes numerically, selects the first one, and applies status priority and statistics', async () => {
+    const requested = vi.fn()
+    useFilesResponse(3110, createTvFilesInfo() as unknown as JsonBodyType, 200, requested)
+
+    await renderDialog(3110)
+
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    await waitFor(() => expect(requested).toHaveBeenCalledOnce())
+    expect(requested.mock.calls[0][0].pathname).toBe('/api/v1/subscribe/files/3110')
+
+    const rail = document.querySelector('.subscribe-files-episode-rail')
+    expect(rail).not.toBeNull()
+    const episodeButtons = within(rail as HTMLElement).getAllByRole('button')
+    expect(episodeButtons.map(button => button.textContent)).toEqual([
+      expect.stringMatching(/E01.*第一集.*已下载/s),
+      expect.stringMatching(/E02.*第二集.*已入库/s),
+      expect.stringMatching(/E10.*第十集.*待入库/s),
+    ])
+    expect(episodeButtons[0]).toHaveClass('subscribe-files-episode-item--active')
+
+    const detailTitle = document.querySelector('.subscribe-files-detail__title')
+    expect(detailTitle).not.toBeNull()
+    expect(detailTitle).toHaveTextContent('E01')
+    expect(detailTitle).toHaveTextContent('第一集')
+
+    const statCards = document.querySelectorAll('.subscribe-files-stat-card')
+    expect(statCards).toHaveLength(2)
+    expect(statCards[0]).toHaveTextContent('下载')
+    expect(statCards[0]).toHaveTextContent('2/4')
+    expect(statCards[1]).toHaveTextContent('入库')
+    expect(statCards[1]).toHaveTextContent('1/4')
+    expect(screen.getByText('缺失 3')).toBeInTheDocument()
+  })
+
+  it('counts a non-TMDB custom episode range instead of treating its ending episode as the total', async () => {
+    const episodes = Object.fromEntries(
+      [44, 45, 46, 47, 48].map(episode => [
+        episode,
+        {
+          download: [],
+          library: [],
+          title: `第 ${episode} 集`,
+        },
+      ]),
+    )
+    const info = createFilesInfo({
+      episodes,
+      subscribe: createSubscribe({
+        doubanid: 'douban-range-44-48',
+        start_episode: 44,
+        tmdbid: undefined,
+        total_episode: 48,
+      }),
+    })
+    useFilesResponse(3120, info as unknown as JsonBodyType)
+
+    await renderDialog(3120)
+
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    expect(screen.getAllByText('0/5')).toHaveLength(2)
+    expect(screen.getByText('缺失 5')).toBeInTheDocument()
+  })
+
+  it('uses the returned TMDB episode keys when they exceed the configured target range', async () => {
+    const episodes = Object.fromEntries(
+      [1, 2, 3, 4].map(episode => [
+        episode,
+        {
+          download: [],
+          library: [],
+          title: `第 ${episode} 集`,
+        },
+      ]),
+    )
+    const info = createFilesInfo({
+      episodes,
+      subscribe: createSubscribe({ start_episode: 3, tmdbid: 31210, total_episode: 4 }),
+    })
+    useFilesResponse(3121, info as unknown as JsonBodyType)
+
+    await renderDialog(3121)
+
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    expect(screen.getAllByText('0/4')).toHaveLength(2)
+    expect(screen.getByText('缺失 4')).toBeInTheDocument()
+  })
+
+  it('renders download details, switches desktop episodes, and shows both tab empty states', async () => {
+    useFilesResponse(3111, createTvFilesInfo() as unknown as JsonBodyType)
+    const user = userEvent.setup()
+
+    await renderDialog(3111)
+
+    const firstTorrent = await screen.findByRole('heading', { name: 'Show.S01E01.2160p.WEB-DL' })
+    const firstFileCard = firstTorrent.closest('.subscribe-files-file-card')
+    expect(firstFileCard).not.toBeNull()
+    expect(within(firstFileCard as HTMLElement).getByText('2160P')).toBeInTheDocument()
+    expect(within(firstFileCard as HTMLElement).getByText('站点一')).toBeInTheDocument()
+    expect(within(firstFileCard as HTMLElement).getByText('下载器：qBittorrent')).toBeInTheDocument()
+    expect(within(firstFileCard as HTMLElement).getByText('Hash：hash-episode-1')).toBeInTheDocument()
+    expect(within(firstFileCard as HTMLElement).getByText('/downloads/show.S01E01.2160p.mkv')).toBeInTheDocument()
+
+    const rail = document.querySelector('.subscribe-files-episode-rail') as HTMLElement
+    const episodeButtons = within(rail).getAllByRole('button')
+    await user.click(episodeButtons[1])
+    expect(await screen.findByRole('heading', { name: 'Show.S01E02.1080p.WEB-DL' })).toBeInTheDocument()
+    expect(screen.queryByRole('heading', { name: 'Show.S01E01.2160p.WEB-DL' })).not.toBeInTheDocument()
+
+    await user.click(episodeButtons[2])
+    expect(await screen.findByText('暂无下载文件')).toBeInTheDocument()
+    await user.click(screen.getByRole('button', { name: '媒体库文件' }))
+    expect(await screen.findByText('暂无媒体库文件')).toBeInTheDocument()
+  })
+
+  it('renders local library paths and safe HTTP(S) media-server links', async () => {
+    const httpUrl = 'http://media.example.com/items/emby-1'
+    const httpsUrl = 'https://media.example.com/items/jellyfin-2'
+    const info = createFilesInfo({
+      episodes: {
+        1: {
+          download: [],
+          library: [
+            { file_path: '/media/show.S01E01.1080p.mkv', storage: '本地存储' },
+            { file_path: httpUrl, itemid: 'emby-1', server: '家庭 Emby', server_type: 'emby' },
+            { file_path: httpsUrl, itemid: 'jellyfin-2', server: '家庭 Jellyfin', server_type: 'jellyfin' },
+            {},
+          ],
+          title: '媒体库详情集',
+        },
+      },
+      subscribe: createSubscribe({ season: 1, total_episode: 1 }),
+    })
+    useFilesResponse(3112, info as unknown as JsonBodyType)
+    const user = userEvent.setup()
+
+    await renderDialog(3112)
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    await user.click(screen.getByRole('button', { name: '媒体库文件' }))
+
+    const localPath = await screen.findByText('/media/show.S01E01.1080p.mkv')
+    expect(localPath.closest('a')).toBeNull()
+    expect(screen.getByText('1080P')).toBeInTheDocument()
+    expect(screen.getByText('本地存储')).toBeInTheDocument()
+    expect(screen.getByText('local')).toBeInTheDocument()
+    expect(screen.getByText('家庭 Emby')).toBeInTheDocument()
+    expect(screen.getByText('家庭 Jellyfin')).toBeInTheDocument()
+
+    for (const url of [httpUrl, httpsUrl]) {
+      const link = screen.getByRole('link', { name: url })
+      expect(link).toHaveAttribute('href', url)
+      expect(link).toHaveAttribute('target', '_blank')
+      expect(link).toHaveAttribute('rel', 'noopener noreferrer')
+    }
+
+    expect(screen.getByText('暂无路径')).toBeInTheDocument()
+    const copyButtons = screen.getAllByRole('button', { name: '复制路径' })
+    expect(copyButtons.at(-1)).toBeDisabled()
+  })
+
+  it('reports clipboard success, false results, and exceptions while disabling empty paths', async () => {
+    const info = createFilesInfo({
+      episodes: {
+        1: {
+          download: [
+            { file_path: '/downloads/one.mkv', torrent_title: '文件一' },
+            { file_path: '/downloads/two.mkv', torrent_title: '文件二' },
+            { file_path: '/downloads/three.mkv', torrent_title: '文件三' },
+            { torrent_title: '无路径文件' },
+          ],
+          library: [],
+          title: '复制测试集',
+        },
+      },
+      subscribe: createSubscribe({ total_episode: 1 }),
+    })
+    useFilesResponse(3113, info as unknown as JsonBodyType)
+    mocks.copyToClipboard
+      .mockResolvedValueOnce(true)
+      .mockResolvedValueOnce(false)
+      .mockRejectedValueOnce(new Error('clipboard denied'))
+    const user = userEvent.setup()
+
+    await renderDialog(3113)
+    expect(await screen.findByRole('heading', { name: '文件一' })).toBeInTheDocument()
+    const copyButtons = screen.getAllByRole('button', { name: '复制路径' })
+    expect(copyButtons).toHaveLength(4)
+    expect(copyButtons[3]).toBeDisabled()
+
+    await user.click(copyButtons[0])
+    await waitFor(() => expect(mocks.toastSuccess).toHaveBeenCalledWith('路径已复制'))
+    await user.click(copyButtons[1])
+    await waitFor(() => expect(mocks.toastError).toHaveBeenCalledTimes(1))
+    await user.click(copyButtons[2])
+    await waitFor(() => expect(mocks.toastError).toHaveBeenCalledTimes(2))
+    await user.click(copyButtons[3])
+
+    expect(mocks.copyToClipboard.mock.calls).toEqual([
+      ['/downloads/one.mkv'],
+      ['/downloads/two.mkv'],
+      ['/downloads/three.mkv'],
+    ])
+    expect(mocks.toastError).toHaveBeenNthCalledWith(1, '复制失败')
+    expect(mocks.toastError).toHaveBeenNthCalledWith(2, '复制失败')
+  })
+
+  it('renders every episode and its active-tab files on mobile', async () => {
+    setViewport(480)
+    const info = createFilesInfo({
+      episodes: {
+        2: {
+          download: [{ file_path: '/downloads/mobile-2.mkv', torrent_title: '移动第二集' }],
+          library: [],
+          title: '移动第二集',
+        },
+        1: {
+          download: [{ file_path: '/downloads/mobile-1.mkv', torrent_title: '移动第一集' }],
+          library: [{ file_path: '/media/mobile-1.mkv', storage: 'mobile-storage' }],
+          title: '移动第一集',
+        },
+      },
+      subscribe: createSubscribe({ total_episode: 2 }),
+    })
+    useFilesResponse(3114, info as unknown as JsonBodyType)
+    const user = userEvent.setup()
+
+    await renderDialog(3114)
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    await waitFor(() => expect(document.querySelector('.subscribe-files-mobile-list')).not.toBeNull())
+    expect(document.querySelector('.subscribe-files-episode-rail')).toBeNull()
+    const mobileCards = document.querySelectorAll('.subscribe-files-mobile-card')
+    expect(mobileCards).toHaveLength(2)
+    expect(mobileCards[0]).toHaveTextContent('E01')
+    expect(mobileCards[0]).toHaveTextContent('/downloads/mobile-1.mkv')
+    expect(mobileCards[1]).toHaveTextContent('E02')
+    expect(mobileCards[1]).toHaveTextContent('/downloads/mobile-2.mkv')
+
+    await user.click(screen.getByRole('button', { name: '媒体库文件' }))
+    expect(await screen.findByText('/media/mobile-1.mkv')).toBeInTheDocument()
+    expect(screen.getByText('暂无媒体库文件')).toBeInTheDocument()
+  })
+
+  it('uses the movie model for episode zero and keeps its statistics meaningful', async () => {
+    const info = createFilesInfo({
+      episodes: {
+        0: {
+          download: [{ file_path: '/downloads/movie.4k.mkv', torrent_title: 'Movie.4K' }],
+          library: [],
+          title: '电影正片',
+        },
+      },
+      subscribe: createSubscribe({ season: undefined, total_episode: 0, type: '电影' }),
+    })
+    useFilesResponse(3115, info as unknown as JsonBodyType)
+
+    await renderDialog(3115)
+
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    const rail = document.querySelector('.subscribe-files-episode-rail') as HTMLElement
+    expect(within(rail).getByRole('button')).toHaveTextContent('电影')
+    expect(within(rail).getByRole('button')).toHaveTextContent('电影正片')
+    expect(document.querySelector('.subscribe-files-detail__title')).toHaveTextContent('电影')
+    expect(screen.getAllByText('1/1')).toHaveLength(1)
+    expect(screen.getByText('4K')).toBeInTheDocument()
+  })
+
+  it('shows season zero as a valid season label', async () => {
+    const info = createFilesInfo({
+      subscribe: createSubscribe({ season: 0, total_episode: 1 }),
+    })
+    useFilesResponse(3101, info as unknown as JsonBodyType)
+
+    await renderDialog(3101)
+
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    expect(screen.getByText('第 0 季')).toBeInTheDocument()
+  })
+
+  it('distinguishes an HTTP failure from an empty response and offers retry', async () => {
+    const info = createFilesInfo({ subscribe: createSubscribe({ name: '重试恢复剧', total_episode: 1 }) })
+    let requestCount = 0
+    server.use(http.get(subscribeApiUrls.filesById(3102), () => {
+      requestCount += 1
+      if (requestCount === 1) return HttpResponse.json({}, { status: 500 })
+      return HttpResponse.json(info as unknown as JsonBodyType)
+    }))
+    const user = userEvent.setup()
+
+    await renderDialog(3102)
+
+    expect(await screen.findByText('服务器错误，请稍后重试。')).toBeInTheDocument()
+    expect(screen.queryByText('没有数据')).not.toBeInTheDocument()
+    await user.click(screen.getByRole('button', { name: '重试' }))
+    expect(await screen.findByRole('heading', { name: '重试恢复剧' })).toBeInTheDocument()
+    expect(screen.queryByText('服务器错误，请稍后重试。')).not.toBeInTheDocument()
+    expect(requestCount).toBe(2)
+  })
+
+  it('shows loading until the request resolves', async () => {
+    const deferred = createDeferred<JsonBodyType>()
+    server.use(http.get(subscribeApiUrls.filesById(3116), async () => {
+      return HttpResponse.json(await deferred.promise)
+    }))
+
+    await renderDialog(3116)
+
+    expect(document.querySelector('.initial-loading-container')).not.toBeNull()
+    deferred.resolve(createFilesInfo() as unknown as JsonBodyType)
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    expect(document.querySelector('.initial-loading-container')).toBeNull()
+  })
+
+  it('keeps a successful empty response as the no-data state without retry', async () => {
+    useFilesResponse(3117, { episodes: {}, subscribe: null })
+
+    await renderDialog(3117)
+
+    expect(await screen.findByText('没有数据')).toBeInTheDocument()
+    expect(screen.queryByRole('button', { name: '重试' })).not.toBeInTheDocument()
+  })
+
+  it.each([
+    ['R', '订阅中'],
+    ['P', '待处理'],
+    ['S', '已暂停'],
+    ['N', '新订阅'],
+    ['unexpected', '未知'],
+  ])('renders subscription state %s as %s', async (state, label) => {
+    const info = createFilesInfo({
+      episodes: {},
+      subscribe: createSubscribe({ state, total_episode: 0 }),
+    })
+    useFilesResponse(3118, info as unknown as JsonBodyType)
+
+    await renderDialog(3118)
+
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    const chips = document.querySelector('.subscribe-files-hero__chips') as HTMLElement
+    expect(within(chips).getByText(label)).toBeInTheDocument()
+    expect(screen.getAllByText('0/0')).toHaveLength(2)
+    expect(screen.getByText('缺失 0')).toBeInTheDocument()
+  })
+
+  it('emits close from the dialog close button', async () => {
+    useFilesResponse(3119, createFilesInfo() as unknown as JsonBodyType)
+    const user = userEvent.setup()
+    const { close } = await renderDialog(3119)
+
+    expect(await screen.findByRole('heading', { name: '文件测试剧' })).toBeInTheDocument()
+    await user.click(screen.getByRole('button', { name: '关闭' }))
+
+    expect(close).toHaveBeenCalledOnce()
+  })
+})
diff --git a/src/components/dialog/__tests__/SubscribeHistoryDialog.spec.ts b/src/components/dialog/__tests__/SubscribeHistoryDialog.spec.ts
new file mode 100644
index 00000000..63dd994e
--- /dev/null
+++ b/src/components/dialog/__tests__/SubscribeHistoryDialog.spec.ts
@@ -0,0 +1,429 @@
+import DialogCloseBtn from '@/@core/components/DialogCloseBtn.vue'
+import { mediaTypeDict } from '@/api/constants'
+import type { Subscribe } from '@/api/types'
+import SubscribeHistoryDialog from '@/components/dialog/SubscribeHistoryDialog.vue'
+import { fireEvent, screen, waitFor, within } from '@testing-library/vue'
+import userEvent from '@testing-library/user-event'
+import {
+  createSubscribeHandler,
+  deleteSubscribeHistoryHandler,
+  subscribeApiUrls,
+  subscribeHistoryHandler,
+} from '@tests/support/msw/handlers/subscribe'
+import { server } from '@tests/support/msw/server'
+import { renderWithProviders } from '@tests/support/render'
+import { HttpResponse, http, type JsonBodyType } from 'msw'
+import { defineComponent, h, onMounted, ref, type PropType } from 'vue'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+
+const mocks = vi.hoisted(() => ({
+  toastError: vi.fn(),
+}))
+
+vi.mock('vue-toastification', () => ({
+  useToast: () => ({ error: mocks.toastError }),
+}))
+
+type InfiniteScrollStatus = 'empty' | 'error' | 'ok'
+
+const InfiniteScrollStub = defineComponent({
+  name: 'VInfiniteScroll',
+  props: {
+    items: {
+      type: Array as PropType<unknown[]>,
+      default: () => [],
+    },
+  },
+  emits: ['load'],
+  setup(_props, { emit, slots }) {
+    const status = ref<'empty' | 'error' | 'idle' | 'loading'>('idle')
+
+    function load() {
+      status.value = 'loading'
+      emit('load', {
+        done(nextStatus: InfiniteScrollStatus) {
+          status.value = nextStatus === 'ok' ? 'idle' : nextStatus
+        },
+      })
+    }
+
+    onMounted(load)
+
+    return () =>
+      h('div', { 'data-testid': 'history-infinite-scroll' }, [
+        status.value === 'loading' ? slots.loading?.({}) : null,
+        status.value === 'error'
+          ? slots.error?.({
+              side: 'end',
+              props: { color: undefined, onClick: load },
+            })
+          : null,
+        status.value === 'empty' ? slots.empty?.({}) : null,
+        slots.default?.(),
+        h(
+          'button',
+          {
+            'aria-label': '加载更多历史',
+            type: 'button',
+            onClick: load,
+          },
+          '加载更多历史',
+        ),
+      ])
+  },
+})
+
+const VirtualScrollStub = defineComponent({
+  name: 'VVirtualScroll',
+  props: {
+    items: {
+      type: Array as PropType<Subscribe[]>,
+      default: () => [],
+    },
+  },
+  setup(props, { slots }) {
+    const itemRef = () => {}
+    return () => h('div', props.items.map(item => slots.default?.({ item, itemRef })))
+  },
+})
+
+const MenuStub = defineComponent({
+  name: 'VMenu',
+  setup(_props, { slots }) {
+    return () => h('div', slots.default?.())
+  },
+})
+
+const ProgressDialogStub = defineComponent({
+  name: 'ProgressDialog',
+  props: {
+    text: String,
+  },
+  setup(props) {
+    return () => h('div', { role: 'status' }, props.text)
+  },
+})
+
+interface Deferred<T> {
+  promise: Promise<T>
+  resolve: (value: T) => void
+}
+
+function createDeferred<T>(): Deferred<T> {
+  let resolve!: (value: T) => void
+  const promise = new Promise<T>(done => {
+    resolve = done
+  })
+  return { promise, resolve }
+}
+
+let historySeed = 4000
+
+function createHistory(overrides: Partial<Subscribe> = {}): Subscribe {
+  historySeed += 1
+  return {
+    best_version: 0,
+    current_priority: 0,
+    date: '2026-07-17 12:00:00',
+    description: `历史说明 ${historySeed}`,
+    id: historySeed,
+    last_update: '2026-07-17 12:00:00',
+    name: `历史媒体 ${historySeed}`,
+    poster: `/images/history-${historySeed}.jpg`,
+    show_edit_dialog: false,
+    sites: [],
+    state: 'R',
+    tmdbid: historySeed,
+    type: '电影',
+    username: 'tester',
+    year: '2026',
+    ...overrides,
+  }
+}
+
+async function renderDialog(type: '电影' | '电视剧' = '电影') {
+  const events = {
+    close: vi.fn(),
+    save: vi.fn(),
+  }
+  const result = await renderWithProviders(SubscribeHistoryDialog, {
+    props: {
+      modelValue: true,
+      type,
+      onClose: events.close,
+      onSave: events.save,
+    },
+    global: {
+      components: {
+        VDialogCloseBtn: DialogCloseBtn,
+      },
+      stubs: {
+        ProgressDialog: ProgressDialogStub,
+        VInfiniteScroll: InfiniteScrollStub,
+        VMenu: MenuStub,
+        VVirtualScroll: VirtualScrollStub,
+      },
+    },
+  })
+  return { ...result, events }
+}
+
+function historyRow(item: Subscribe) {
+  const description = screen.getByText(item.description!)
+  const row = description.closest('.v-list-item')
+  if (!row) throw new Error(`History row ${item.id} was not rendered`)
+  return row as HTMLElement
+}
+
+describe('SubscribeHistoryDialog', () => {
+  beforeEach(() => {
+    vi.spyOn(console, 'error').mockImplementation(() => {})
+    vi.spyOn(console, 'warn').mockImplementation(() => {})
+  })
+
+  it('loads movie history with the exact type, page and count request', async () => {
+    const movie = createHistory({ name: '首载电影' })
+    const requests: URL[] = []
+    server.use(
+      subscribeHistoryHandler('电影', [movie], 200, url => {
+        requests.push(url)
+      }),
+    )
+
+    await renderDialog('电影')
+
+    expect(await screen.findByText('首载电影')).toBeInTheDocument()
+    expect(screen.getByText(`${mediaTypeDict['电影']}订阅历史`)).toBeInTheDocument()
+    expect(screen.queryByText(/第 \d+ 季/)).not.toBeInTheDocument()
+    expect(requests).toHaveLength(1)
+    expect(decodeURIComponent(requests[0].pathname).endsWith('/subscribe/history/电影')).toBe(true)
+    expect(requests[0].searchParams.get('page')).toBe('1')
+    expect(requests[0].searchParams.get('count')).toBe('30')
+  })
+
+  it('loads TV history and renders the season copy', async () => {
+    const show = createHistory({ name: '首载剧集', season: 3, type: '电视剧' })
+    const requests: URL[] = []
+    server.use(
+      subscribeHistoryHandler('电视剧', [show], 200, url => {
+        requests.push(url)
+      }),
+    )
+
+    await renderDialog('电视剧')
+
+    expect(await screen.findByText('首载剧集')).toBeInTheDocument()
+    expect(screen.getByText('第 3 季')).toBeInTheDocument()
+    expect(screen.getByText(`${mediaTypeDict['电视剧']}订阅历史`)).toBeInTheDocument()
+    expect(decodeURIComponent(requests[0].pathname).endsWith('/subscribe/history/电视剧')).toBe(true)
+    expect(requests[0].searchParams.get('page')).toBe('1')
+    expect(requests[0].searchParams.get('count')).toBe('30')
+  })
+
+  it('appends later pages and keeps existing rows when the next page is empty', async () => {
+    const first = createHistory({ name: '第一页电影' })
+    const second = createHistory({ name: '第二页电影' })
+    const requestedPages: string[] = []
+    server.use(
+      http.get(subscribeApiUrls.historyByType('电影'), ({ request }) => {
+        const url = new URL(request.url)
+        const page = url.searchParams.get('page') ?? ''
+        requestedPages.push(page)
+        if (page === '1') return HttpResponse.json([first])
+        if (page === '2') return HttpResponse.json([second])
+        return HttpResponse.json([])
+      }),
+    )
+    const user = userEvent.setup()
+
+    await renderDialog()
+
+    expect(await screen.findByText('第一页电影')).toBeInTheDocument()
+    await user.click(screen.getByRole('button', { name: '加载更多历史' }))
+    expect(await screen.findByText('第二页电影')).toBeInTheDocument()
+    await user.click(screen.getByRole('button', { name: '加载更多历史' }))
+    await waitFor(() => expect(requestedPages).toEqual(['1', '2', '3']))
+
+    expect(screen.getByText('第一页电影')).toBeInTheDocument()
+    expect(screen.getByText('第二页电影')).toBeInTheDocument()
+    expect(screen.queryByText('没有已完成的订阅')).not.toBeInTheDocument()
+  })
+
+  it('renders the empty state after an empty first page', async () => {
+    server.use(subscribeHistoryHandler('电影'))
+
+    await renderDialog()
+
+    expect(await screen.findByText('没有已完成的订阅')).toBeInTheDocument()
+    expect(screen.getByText('完成的订阅会显示在这里')).toBeInTheDocument()
+  })
+
+  it('shows a visible list error and retries the same page', async () => {
+    const recovered = createHistory({ name: '重试恢复电影' })
+    const requestedPages: string[] = []
+    server.use(
+      http.get(subscribeApiUrls.historyByType('电影'), ({ request }) => {
+        const url = new URL(request.url)
+        requestedPages.push(url.searchParams.get('page') ?? '')
+        if (requestedPages.length === 1) return HttpResponse.json({ detail: 'failed' }, { status: 500 })
+        return HttpResponse.json([recovered])
+      }),
+    )
+    const user = userEvent.setup()
+
+    await renderDialog()
+
+    expect(await screen.findByRole('alert')).toHaveTextContent('请求失败，请稍后重试')
+    await user.click(screen.getByRole('button', { name: '重试' }))
+
+    expect(await screen.findByText('重试恢复电影')).toBeInTheDocument()
+    expect(requestedPages).toEqual(['1', '1'])
+    expect(screen.queryByRole('alert')).not.toBeInTheDocument()
+  })
+
+  it('does not issue another request when the load event reenters while pending', async () => {
+    const pending = createDeferred<Subscribe[]>()
+    const requested = vi.fn()
+    const movie = createHistory({ name: '重入保护电影' })
+    server.use(
+      http.get(subscribeApiUrls.historyByType('电影'), async () => {
+        requested()
+        return HttpResponse.json(await pending.promise)
+      }),
+    )
+
+    await renderDialog()
+    await waitFor(() => expect(requested).toHaveBeenCalledOnce())
+
+    await fireEvent.click(screen.getByRole('button', { name: '加载更多历史' }))
+    expect(requested).toHaveBeenCalledOnce()
+
+    pending.resolve([movie])
+    expect(await screen.findByText('重入保护电影')).toBeInTheDocument()
+    expect(requested).toHaveBeenCalledOnce()
+  })
+
+  it.each([
+    ['电影', createHistory({ name: '重新订阅电影' }), '正在重新订阅 重新订阅电影...'],
+    [
+      '电视剧',
+      createHistory({ name: '重新订阅剧集', season: 2, type: '电视剧' }),
+      '正在重新订阅 重新订阅剧集 第 2 季...',
+    ],
+  ] as const)('shows the %s pending copy and emits save only after success', async (type, item, progressText) => {
+    const pending = createDeferred<{ success: boolean }>()
+    let payload: JsonBodyType | undefined
+    server.use(
+      subscribeHistoryHandler(type, [item]),
+      http.post(subscribeApiUrls.create, async ({ request }) => {
+        payload = (await request.json()) as JsonBodyType
+        return HttpResponse.json(await pending.promise)
+      }),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog(type)
+    expect(await screen.findByText(item.name)).toBeInTheDocument()
+
+    await user.click(within(historyRow(item)).getByText('重新订阅'))
+
+    expect(await screen.findByRole('status')).toHaveTextContent(progressText)
+    expect(events.save).not.toHaveBeenCalled()
+    pending.resolve({ success: true })
+    await waitFor(() => expect(events.save).toHaveBeenCalledOnce())
+
+    expect(payload).toEqual(item)
+    expect(screen.queryByRole('status')).not.toBeInTheDocument()
+    expect(events.close).not.toHaveBeenCalled()
+    expect(mocks.toastError).not.toHaveBeenCalled()
+  })
+
+  it('toasts a business failure when resubscribing and does not emit save', async () => {
+    const movie = createHistory({ name: '业务失败电影' })
+    server.use(
+      subscribeHistoryHandler('电影', [movie]),
+      createSubscribeHandler({ success: false }),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog()
+    expect(await screen.findByText(movie.name)).toBeInTheDocument()
+
+    await user.click(within(historyRow(movie)).getByText('重新订阅'))
+
+    await waitFor(() => expect(mocks.toastError).toHaveBeenCalledWith('请求失败，请稍后重试'))
+    expect(events.save).not.toHaveBeenCalled()
+    expect(screen.queryByRole('status')).not.toBeInTheDocument()
+    expect(screen.getByText(movie.name)).toBeInTheDocument()
+  })
+
+  it('toasts an HTTP failure when resubscribing and does not emit save', async () => {
+    const movie = createHistory({ name: '网络失败电影' })
+    server.use(
+      subscribeHistoryHandler('电影', [movie]),
+      http.post(subscribeApiUrls.create, () => HttpResponse.json({ detail: 'failed' }, { status: 500 })),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog()
+    expect(await screen.findByText(movie.name)).toBeInTheDocument()
+
+    await user.click(within(historyRow(movie)).getByText('重新订阅'))
+
+    await waitFor(() => expect(mocks.toastError).toHaveBeenCalledWith('请求失败，请稍后重试'))
+    expect(events.save).not.toHaveBeenCalled()
+    expect(screen.queryByRole('status')).not.toBeInTheDocument()
+    expect(screen.getByText(movie.name)).toBeInTheDocument()
+  })
+
+  it('removes only the target row when the history endpoint returns success true', async () => {
+    const first = createHistory({ name: '待删除电影' })
+    const second = createHistory({ name: '保留电影' })
+    const deleteRequested = vi.fn()
+    server.use(
+      subscribeHistoryHandler('电影', [first, second]),
+      deleteSubscribeHistoryHandler(first.id, { success: true }, 200, deleteRequested),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog()
+    expect(await screen.findByText(first.name)).toBeInTheDocument()
+
+    await user.click(within(historyRow(first)).getByText('删除'))
+
+    await waitFor(() => expect(screen.queryByText(first.name)).not.toBeInTheDocument())
+    expect(screen.getByText(second.name)).toBeInTheDocument()
+    expect(deleteRequested).toHaveBeenCalledOnce()
+    expect(events.save).not.toHaveBeenCalled()
+    expect(events.close).not.toHaveBeenCalled()
+    expect(mocks.toastError).not.toHaveBeenCalled()
+  })
+
+  it('keeps the row and toasts when history deletion fails over HTTP', async () => {
+    const movie = createHistory({ name: '删除失败电影' })
+    server.use(
+      subscribeHistoryHandler('电影', [movie]),
+      http.delete(subscribeApiUrls.historyById(movie.id), () =>
+        HttpResponse.json({ detail: 'failed' }, { status: 500 }),
+      ),
+    )
+    const user = userEvent.setup()
+    await renderDialog()
+    expect(await screen.findByText(movie.name)).toBeInTheDocument()
+
+    await user.click(within(historyRow(movie)).getByText('删除'))
+
+    await waitFor(() => expect(mocks.toastError).toHaveBeenCalledWith('请求失败，请稍后重试'))
+    expect(screen.getByText(movie.name)).toBeInTheDocument()
+  })
+
+  it('emits close from the dialog close button', async () => {
+    server.use(subscribeHistoryHandler('电影'))
+    const user = userEvent.setup()
+    const { events } = await renderDialog()
+    expect(await screen.findByText('没有已完成的订阅')).toBeInTheDocument()
+    const closeButton = document.querySelector('.absolute.right-3.top-3')
+    if (!(closeButton instanceof HTMLButtonElement)) throw new Error('Dialog close button was not rendered')
+
+    await user.click(closeButton)
+
+    expect(events.close).toHaveBeenCalledOnce()
+    expect(events.save).not.toHaveBeenCalled()
+  })
+})
diff --git a/src/components/dialog/__tests__/SubscribeSeasonDialog.spec.ts b/src/components/dialog/__tests__/SubscribeSeasonDialog.spec.ts
new file mode 100644
index 00000000..690191eb
--- /dev/null
+++ b/src/components/dialog/__tests__/SubscribeSeasonDialog.spec.ts
@@ -0,0 +1,410 @@
+import type { MediaInfo, MediaSeason, NotExistMediaInfo } from '@/api/types'
+import DialogCloseBtn from '@/@core/components/DialogCloseBtn.vue'
+import SubscribeSeasonDialog from '@/components/dialog/SubscribeSeasonDialog.vue'
+import type { SubscribeMode } from '@/composables/useMediaSubscribe'
+import { fireEvent, screen, waitFor, within } from '@testing-library/vue'
+import userEvent from '@testing-library/user-event'
+import {
+  createMediaInfo,
+  createMediaSeason,
+  createNotExistMediaInfo,
+} from '@tests/support/factories/media'
+import {
+  mediaEpisodeGroupsHandler,
+  mediaGroupSeasonsHandler,
+  mediaNotExistsHandler,
+  mediaSeasonsHandler,
+} from '@tests/support/msw/handlers/media'
+import { server } from '@tests/support/msw/server'
+import { renderWithProviders } from '@tests/support/render'
+import { flushPromises } from '@vue/test-utils'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+
+interface SeasonDialogProps {
+  defaultSubscribeMode?: SubscribeMode
+  initialEpisodeGroup?: string
+  media?: MediaInfo
+  modelValue?: boolean
+  selectedSeason?: number
+  subscribedSeasonModes?: Record<number, SubscribeMode>
+  subscribedSeasons?: number[]
+}
+
+function createDeferred() {
+  let resolve!: () => void
+  const promise = new Promise<void>(done => {
+    resolve = done
+  })
+  return { promise, resolve }
+}
+
+function createTvMedia(overrides: Partial<MediaInfo> = {}) {
+  return createMediaInfo({
+    poster_path: '/images/fallback-poster.jpg',
+    season: 1,
+    title: '季订阅测试剧',
+    tmdb_id: 7301,
+    type: '电视剧',
+    year: '2026',
+    ...overrides,
+  })
+}
+
+async function renderDialog(props: SeasonDialogProps = {}) {
+  const events = {
+    close: vi.fn(),
+    subscribe: vi.fn(),
+  }
+  const result = await renderWithProviders(SubscribeSeasonDialog, {
+    global: {
+      components: {
+        VDialogCloseBtn: DialogCloseBtn,
+      },
+    },
+    initialState: {
+      globalSettings: {
+        data: {
+          GLOBAL_IMAGE_CACHE: false,
+          TMDB_IMAGE_DOMAIN: 'image.tmdb.org',
+        },
+      },
+    },
+    props: {
+      media: createTvMedia(),
+      modelValue: true,
+      ...props,
+      onClose: events.close,
+      onSubscribe: events.subscribe,
+    },
+  })
+
+  return { ...result, events }
+}
+
+function seasonRow(number: number) {
+  const title = screen.getByText(`第 ${number} 季`)
+  const row = title.closest('.v-list-item')
+  if (!row) throw new Error(`Season ${number} row was not rendered`)
+  return row as HTMLElement
+}
+
+async function settleRequests() {
+  await flushPromises()
+  await flushPromises()
+}
+
+describe('SubscribeSeasonDialog', () => {
+  beforeEach(() => {
+    vi.spyOn(console, 'error').mockImplementation(() => {})
+    vi.spyOn(console, 'warn').mockImplementation(() => {})
+  })
+
+  it('loads the default TMDB seasons once with exact requests and renders season states', async () => {
+    const media = createTvMedia({ season: 0, tmdb_id: 7302 })
+    const seasons = [
+      createMediaSeason({ air_date: '2020-01-02', episode_count: 3, poster_path: '', season_number: 0 }),
+      createMediaSeason({ air_date: '2021-02-03', episode_count: 4, season_number: 1 }),
+      createMediaSeason({ air_date: '2022-03-04', episode_count: 5, season_number: 2 }),
+    ]
+    const states = [
+      createNotExistMediaInfo({ episodes: [1, 2, 3], season: 0, total_episode: 3 }),
+      createNotExistMediaInfo({ episodes: [1, 2], season: 1, total_episode: 4 }),
+      createNotExistMediaInfo({ episodes: [], season: 2, total_episode: 5 }),
+    ]
+    const seasonRequests: URL[] = []
+    const missingPayloads: Record<string, unknown>[] = []
+    const groupRequests = vi.fn()
+    server.use(
+      mediaSeasonsHandler(seasons, 200, url => {
+        seasonRequests.push(url)
+      }),
+      mediaNotExistsHandler(states, 200, payload => {
+        missingPayloads.push(payload)
+      }),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, [], 200, groupRequests),
+    )
+
+    await renderDialog({ media })
+
+    expect(await screen.findByText('第 0 季')).toBeInTheDocument()
+    await waitFor(() => expect(screen.getByText('部分缺失')).toBeInTheDocument())
+    expect(screen.getByText('缺失')).toBeInTheDocument()
+    expect(screen.getByText('首播于 2020年1月2日')).toBeInTheDocument()
+    expect(seasonRow(0)).toHaveTextContent('3 集')
+    await settleRequests()
+
+    expect(seasonRequests).toHaveLength(1)
+    expect(missingPayloads).toHaveLength(1)
+    expect(groupRequests).toHaveBeenCalledOnce()
+    expect(seasonRequests[0].searchParams.get('mediaid')).toBe(`tmdb:${media.tmdb_id}`)
+    expect(seasonRequests[0].searchParams.get('title')).toBe(media.title)
+    expect(seasonRequests[0].searchParams.get('year')).toBe(media.year)
+    expect(seasonRequests[0].searchParams.get('season')).toBe('0')
+    expect(missingPayloads[0]).toMatchObject({ episode_group: '', season: 0, tmdb_id: media.tmdb_id })
+
+  })
+
+  it.each([
+    ['Douban', { douban_id: 'db-7303', tmdb_id: undefined }, 'douban:db-7303'],
+    ['Bangumi', { bangumi_id: 'bgm-7304', douban_id: undefined, tmdb_id: undefined }, 'bangumi:bgm-7304'],
+    [
+      'custom source',
+      { bangumi_id: undefined, douban_id: undefined, media_id: 'custom-7305', mediaid_prefix: 'custom', tmdb_id: undefined },
+      'custom:custom-7305',
+    ],
+  ] as const)('uses the %s media identifier without requesting TMDB groups', async (_label, overrides, mediaId) => {
+    const media = createTvMedia(overrides)
+    const requested = vi.fn()
+    server.use(
+      mediaSeasonsHandler([createMediaSeason({ season_number: 1 })], 200, requested),
+      mediaNotExistsHandler([]),
+    )
+
+    await renderDialog({ media })
+
+    expect(await screen.findByText('第 1 季')).toBeInTheDocument()
+    await settleRequests()
+    expect(requested).toHaveBeenCalledOnce()
+    expect(requested.mock.calls[0][0].searchParams.get('mediaid')).toBe(mediaId)
+  })
+
+  it('synchronizes visible selections and modes, then emits the five-argument subscription payload', async () => {
+    const media = createTvMedia({ tmdb_id: 7306 })
+    const seasons = [
+      createMediaSeason({ season_number: 0 }),
+      createMediaSeason({ season_number: 1 }),
+      createMediaSeason({ season_number: 2 }),
+    ]
+    server.use(
+      mediaSeasonsHandler(seasons),
+      mediaNotExistsHandler([
+        createNotExistMediaInfo({ episodes: [1], season: 0, total_episode: 1 }),
+        createNotExistMediaInfo({ episodes: [], season: 1, total_episode: 12 }),
+        createNotExistMediaInfo({ episodes: [1], season: 2, total_episode: 12 }),
+      ]),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, []),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog({
+      defaultSubscribeMode: 'normal',
+      media,
+      selectedSeason: 0,
+      subscribedSeasonModes: { 1: 'best_version' },
+      subscribedSeasons: [1, 99],
+    })
+
+    expect(await screen.findByText('第 2 季')).toBeInTheDocument()
+    await settleRequests()
+    expect(within(seasonRow(0)).getByRole('button', { name: '全集洗版' })).toHaveClass('v-btn--active')
+    expect(within(seasonRow(1)).getByRole('button', { name: '分集洗版' })).toHaveClass('v-btn--active')
+
+    await user.click(within(seasonRow(0)).getByRole('button', { name: '普通订阅' }))
+    await user.click(seasonRow(2))
+    await user.click(within(seasonRow(2)).getByRole('button', { name: '分集洗版' }))
+    await user.click(screen.getByRole('button', { name: '提交订阅' }))
+
+    expect(events.subscribe).toHaveBeenCalledOnce()
+    const [selected, states, episodeGroup, modes, visible] = events.subscribe.mock.calls[0]
+    expect(selected).toEqual(seasons)
+    expect(states).toEqual({ 0: 0, 1: 2, 2: 1 })
+    expect(episodeGroup).toBe('')
+    expect(modes).toMatchObject({ 0: 'normal', 1: 'best_version', 2: 'best_version' })
+    expect(visible).toEqual([0, 1, 2])
+  })
+
+  it('keeps the submit action disabled when subscribed selections and modes are unchanged', async () => {
+    const media = createTvMedia({ tmdb_id: 7307 })
+    server.use(
+      mediaSeasonsHandler([createMediaSeason({ season_number: 1 })]),
+      mediaNotExistsHandler([createNotExistMediaInfo({ episodes: [], season: 1 })]),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, []),
+    )
+
+    await renderDialog({
+      media,
+      subscribedSeasonModes: { 1: 'best_version' },
+      subscribedSeasons: [1],
+    })
+
+    expect(await screen.findByRole('button', { name: '提交订阅' })).toBeDisabled()
+    expect(await screen.findByText('缺失')).toBeInTheDocument()
+    expect(screen.getByText('已订阅')).toBeInTheDocument()
+  })
+
+  it('preserves a manually chosen mode when delayed missing-state data arrives', async () => {
+    const media = createTvMedia({ tmdb_id: 7308 })
+    const missingGate = createDeferred()
+    server.use(
+      mediaSeasonsHandler([createMediaSeason({ season_number: 1 })]),
+      mediaNotExistsHandler(
+        [createNotExistMediaInfo({ episodes: [], season: 1 })],
+        200,
+        async () => missingGate.promise,
+      ),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, []),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog({
+      defaultSubscribeMode: 'best_version',
+      media,
+      selectedSeason: 1,
+    })
+
+    expect(await screen.findByText('第 1 季')).toBeInTheDocument()
+    await user.click(within(seasonRow(1)).getByRole('button', { name: '普通订阅' }))
+    missingGate.resolve()
+    await waitFor(() => expect(screen.getByText('缺失')).toBeInTheDocument())
+    await user.click(screen.getByRole('button', { name: '提交订阅' }))
+
+    const modes = events.subscribe.mock.calls[0][3]
+    expect(modes[1]).toBe('normal')
+  })
+
+  it('shows Loading instead of an error empty state while switching from a custom group to default seasons', async () => {
+    const media = createTvMedia({ tmdb_id: 7309 })
+    const defaultRequestStarted = createDeferred()
+    const defaultResponseGate = createDeferred()
+    server.use(
+      mediaEpisodeGroupsHandler(media.tmdb_id!, [
+        { episode_count: 8, group_count: 1, id: 'group-a', name: '自定义排序 A' },
+      ]),
+      mediaGroupSeasonsHandler('group-a', [createMediaSeason({ season_number: 5 })]),
+      mediaSeasonsHandler(
+        [createMediaSeason({ season_number: 1 })],
+        200,
+        async () => {
+          defaultRequestStarted.resolve()
+          await defaultResponseGate.promise
+        },
+      ),
+      mediaNotExistsHandler([]),
+    )
+    const user = userEvent.setup()
+    await renderDialog({ initialEpisodeGroup: 'group-a', media })
+
+    expect(await screen.findByText('第 5 季')).toBeInTheDocument()
+    await user.click(screen.getByRole('button', { name: /默认/ }))
+    await defaultRequestStarted.promise
+    const showedLoading = document.querySelector('.initial-loading-container') !== null
+    const showedErrorEmptyState = screen.queryByText(`${media.title} 未查询到季集信息`) !== null
+    defaultResponseGate.resolve()
+    expect(await screen.findByText('第 1 季')).toBeInTheDocument()
+
+    expect(showedLoading).toBe(true)
+    expect(showedErrorEmptyState).toBe(false)
+  })
+
+  it('exits Loading after the default season request fails', async () => {
+    const media = createTvMedia({ tmdb_id: 7310 })
+    const requested = vi.fn()
+    server.use(
+      mediaSeasonsHandler([], 500, requested),
+      mediaNotExistsHandler([]),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, []),
+    )
+    await renderDialog({ media })
+
+    await waitFor(() => expect(requested).toHaveBeenCalled())
+    await settleRequests()
+
+    expect(document.querySelector('.initial-loading-container')).not.toBeInTheDocument()
+    expect(screen.getByText(`${media.title} 未查询到季集信息`)).toBeInTheDocument()
+  })
+
+  it('keeps season selection usable when the missing-state request fails', async () => {
+    const media = createTvMedia({ tmdb_id: 7313 })
+    const missingRequested = vi.fn()
+    server.use(
+      mediaSeasonsHandler([createMediaSeason({ season_number: 1 })]),
+      mediaNotExistsHandler([], 500, missingRequested),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, []),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog({ media })
+
+    expect(await screen.findByText('第 1 季')).toBeInTheDocument()
+    await waitFor(() => expect(missingRequested).toHaveBeenCalledOnce())
+    await settleRequests()
+    await user.click(seasonRow(1))
+    await user.click(screen.getByRole('button', { name: '提交订阅' }))
+
+    expect(events.subscribe).toHaveBeenCalledOnce()
+    expect(events.subscribe.mock.calls[0][1]).toEqual({})
+  })
+
+  it('keeps season selection usable when optional episode groups fail to load', async () => {
+    const media = createTvMedia({ tmdb_id: 7314 })
+    const groupsRequested = vi.fn()
+    server.use(
+      mediaSeasonsHandler([createMediaSeason({ season_number: 1 })]),
+      mediaNotExistsHandler([createNotExistMediaInfo({ episodes: [], season: 1 })]),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, [], 500, groupsRequested),
+    )
+    const user = userEvent.setup()
+    const { events } = await renderDialog({ media })
+
+    expect(await screen.findByText('第 1 季')).toBeInTheDocument()
+    await waitFor(() => expect(groupsRequested).toHaveBeenCalledOnce())
+    await settleRequests()
+    await user.click(seasonRow(1))
+    await user.click(screen.getByRole('button', { name: '提交订阅' }))
+
+    expect(events.subscribe).toHaveBeenCalledOnce()
+    expect(screen.getByRole('button', { name: /^默认/ })).toBeInTheDocument()
+  })
+
+  it('renders the successful empty state and emits close without submitting', async () => {
+    const media = createTvMedia({ tmdb_id: 7311 })
+    server.use(
+      mediaSeasonsHandler([]),
+      mediaNotExistsHandler([]),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, []),
+    )
+    const { events } = await renderDialog({ media })
+
+    expect(await screen.findByText(`${media.title} 未查询到季集信息`)).toBeInTheDocument()
+    await settleRequests()
+    const closeButton = document.querySelector('.absolute.right-3')
+    expect(closeButton).not.toBeNull()
+    await fireEvent.click(closeButton!)
+
+    expect(events.close).toHaveBeenCalledOnce()
+    expect(events.subscribe).not.toHaveBeenCalled()
+  })
+
+  it('updates episode-group rail navigation from its real scroll position', async () => {
+    const media = createTvMedia({ tmdb_id: 7312 })
+    server.use(
+      mediaSeasonsHandler([createMediaSeason({ season_number: 1 })]),
+      mediaNotExistsHandler([]),
+      mediaEpisodeGroupsHandler(media.tmdb_id!, [
+        { episode_count: 8, group_count: 1, id: 'group-a', name: '排序 A' },
+        { episode_count: 8, group_count: 1, id: 'group-b', name: '排序 B' },
+      ]),
+      mediaGroupSeasonsHandler('group-a', [createMediaSeason({ season_number: 1 })]),
+      mediaGroupSeasonsHandler('group-b', [createMediaSeason({ season_number: 2 })]),
+    )
+    const user = userEvent.setup()
+    await renderDialog({ media })
+    await screen.findByText('排序 B')
+
+    const rail = document.querySelector('.subscribe-season-group-options') as HTMLElement & {
+      scrollBy: (options: ScrollToOptions) => void
+    }
+    Object.defineProperties(rail, {
+      clientWidth: { configurable: true, value: 400 },
+      scrollLeft: { configurable: true, value: 0, writable: true },
+      scrollWidth: { configurable: true, value: 1000 },
+    })
+    rail.scrollBy = vi.fn()
+    await fireEvent.scroll(rail)
+
+    await user.click(screen.getByRole('button', { name: '查看更多剧集组' }))
+    expect(rail.scrollBy).toHaveBeenCalledWith({ behavior: 'smooth', left: 288 })
+
+    rail.scrollLeft = 300
+    await fireEvent.scroll(rail)
+    await user.click(screen.getByRole('button', { name: '查看上一组剧集组' }))
+    expect(rail.scrollBy).toHaveBeenCalledWith({ behavior: 'smooth', left: -288 })
+  })
+})
diff --git a/tests/support/factories/media.ts b/tests/support/factories/media.ts
index b2907a74..586d444e 100644
--- a/tests/support/factories/media.ts
+++ b/tests/support/factories/media.ts
@@ -1,7 +1,8 @@
-import type { MediaInfo, TmdbEpisode } from '@/api/types'
+import type { MediaInfo, MediaSeason, NotExistMediaInfo, TmdbEpisode } from '@/api/types'
 
 let episodeSeed = 0
 let mediaSeed = 0
+let seasonSeed = 0
 
 export function createTmdbEpisode(overrides: Partial<TmdbEpisode> = {}): TmdbEpisode {
   episodeSeed += 1
@@ -32,3 +33,28 @@ export function createMediaInfo(overrides: Partial<MediaInfo> = {}): MediaInfo {
     ...overrides,
   }
 }
+
+/** 构造季选择弹窗使用的最小季信息。 */
+export function createMediaSeason(overrides: Partial<MediaSeason> = {}): MediaSeason {
+  seasonSeed += 1
+  return {
+    air_date: `202${seasonSeed % 10}-01-01`,
+    episode_count: 12,
+    name: `第 ${seasonSeed} 季`,
+    poster_path: `/images/season-${seasonSeed}.jpg`,
+    season_number: seasonSeed,
+    vote_average: 8,
+    ...overrides,
+  }
+}
+
+/** 构造媒体服务器返回的单季缺失状态。 */
+export function createNotExistMediaInfo(overrides: Partial<NotExistMediaInfo> = {}): NotExistMediaInfo {
+  return {
+    episodes: [],
+    season: 1,
+    start_episode: 1,
+    total_episode: 12,
+    ...overrides,
+  }
+}
diff --git a/tests/support/msw/handlers/media.ts b/tests/support/msw/handlers/media.ts
index 8f3d27df..8fe99e3f 100644
--- a/tests/support/msw/handlers/media.ts
+++ b/tests/support/msw/handlers/media.ts
@@ -1,8 +1,15 @@
-import type { MediaInfo, TmdbEpisode } from '@/api/types'
+import type { MediaInfo, MediaSeason, NotExistMediaInfo, TmdbEpisode } from '@/api/types'
 import { HttpResponse, http, type JsonBodyType } from 'msw'
 
 const API_BASE_URL = 'http://localhost/api/v1/'
 
+export const mediaApiUrls = {
+  episodeGroups: (tmdbId: number) => new URL(`media/groups/${tmdbId}`, API_BASE_URL).href,
+  groupSeasons: (episodeGroup: string) => new URL(`media/group/seasons/${episodeGroup}`, API_BASE_URL).href,
+  notExists: new URL('mediaserver/notexists', API_BASE_URL).href,
+  seasons: new URL('media/seasons', API_BASE_URL).href,
+}
+
 export function mediaDetailsHandler(
   tmdbId: number,
   response: MediaInfo,
@@ -27,3 +34,50 @@ export function tmdbSeasonEpisodesHandler(
     return HttpResponse.json(response as unknown as JsonBodyType, { status })
   })
 }
+
+export function mediaSeasonsHandler(
+  response: MediaSeason[],
+  status = 200,
+  onRequest: (url: URL) => void | Promise<void> = () => {},
+) {
+  return http.get(mediaApiUrls.seasons, async ({ request }) => {
+    await onRequest(new URL(request.url))
+    return HttpResponse.json(response as unknown as JsonBodyType, { status })
+  })
+}
+
+export function mediaEpisodeGroupsHandler(
+  tmdbId: number,
+  response: Record<string, unknown>[],
+  status = 200,
+  onRequest: (url: URL) => void | Promise<void> = () => {},
+) {
+  return http.get(mediaApiUrls.episodeGroups(tmdbId), async ({ request }) => {
+    await onRequest(new URL(request.url))
+    return HttpResponse.json(response as JsonBodyType, { status })
+  })
+}
+
+export function mediaGroupSeasonsHandler(
+  episodeGroup: string,
+  response: MediaSeason[],
+  status = 200,
+  onRequest: (url: URL) => void | Promise<void> = () => {},
+) {
+  return http.get(mediaApiUrls.groupSeasons(episodeGroup), async ({ request }) => {
+    await onRequest(new URL(request.url))
+    return HttpResponse.json(response as unknown as JsonBodyType, { status })
+  })
+}
+
+export function mediaNotExistsHandler(
+  response: NotExistMediaInfo[],
+  status = 200,
+  onRequest: (payload: Record<string, unknown>, url: URL) => void | Promise<void> = () => {},
+) {
+  return http.post(mediaApiUrls.notExists, async ({ request }) => {
+    const payload = (await request.json()) as Record<string, unknown>
+    await onRequest(payload, new URL(request.url))
+    return HttpResponse.json(response as unknown as JsonBodyType, { status })
+  })
+}
diff --git a/tests/support/msw/handlers/subscribe.ts b/tests/support/msw/handlers/subscribe.ts
index 61081385..5a4b7100 100644
--- a/tests/support/msw/handlers/subscribe.ts
+++ b/tests/support/msw/handlers/subscribe.ts
@@ -25,6 +25,9 @@ export const subscribeApiUrls = {
   downloaders: new URL('download/clients', API_BASE_URL).href,
   episodeGroups: (tmdbId: number) => new URL(`media/groups/${tmdbId}`, API_BASE_URL).href,
   filterRuleGroups: new URL('system/setting/UserFilterRuleGroups', API_BASE_URL).href,
+  filesById: (id: number) => new URL(`subscribe/files/${id}`, API_BASE_URL).href,
+  historyById: (id: number) => new URL(`subscribe/history/${id}`, API_BASE_URL).href,
+  historyByType: (type: SubscribeMediaType) => new URL(`subscribe/history/${type}`, API_BASE_URL).href,
   queryByMedia: (mediaId: string) => new URL(`subscribe/media/${mediaId}`, API_BASE_URL).href,
   list: new URL('subscribe/', API_BASE_URL).href,
   orderConfig: (type: SubscribeMediaType) =>
@@ -51,6 +54,42 @@ export function subscribeListHandler(
   })
 }
 
+export function subscribeFilesHandler(
+  id: number,
+  response: JsonBodyType = { episodes: {}, subscribe: null },
+  status = 200,
+  onRequest: (url: URL) => void | Promise<void> = () => {},
+) {
+  return http.get(subscribeApiUrls.filesById(id), async ({ request }) => {
+    await onRequest(new URL(request.url))
+    return jsonResponse(response, status)
+  })
+}
+
+export function subscribeHistoryHandler(
+  type: SubscribeMediaType,
+  response: Subscribe[] = [],
+  status = 200,
+  onRequest: (url: URL) => void | Promise<void> = () => {},
+) {
+  return http.get(subscribeApiUrls.historyByType(type), async ({ request }) => {
+    await onRequest(new URL(request.url))
+    return jsonResponse(response as unknown as JsonBodyType, status)
+  })
+}
+
+export function deleteSubscribeHistoryHandler(
+  id: number,
+  response: SubscribeMutationResponse = { success: true },
+  status = 200,
+  onRequest: (url: URL) => void | Promise<void> = () => {},
+) {
+  return http.delete(subscribeApiUrls.historyById(id), async ({ request }) => {
+    await onRequest(new URL(request.url))
+    return jsonResponse(response, status)
+  })
+}
+
 export function subscribeOrderConfigHandler(
   type: SubscribeMediaType,
   value: JsonBodyType = [],
diff --git a/vite.config.ts b/vite.config.ts
index ff7a3a49..229afd89 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -283,6 +283,9 @@ export default defineConfig(({ mode }) => ({
         'src/composables/useMediaSubscribe.ts',
         'src/components/cards/SubscribeCard.vue',
         'src/components/dialog/SubscribeEditDialog.vue',
+        'src/components/dialog/SubscribeFilesDialog.vue',
+        'src/components/dialog/SubscribeHistoryDialog.vue',
+        'src/components/dialog/SubscribeSeasonDialog.vue',
       ],
       provider: 'v8',
       reporter: ['text', 'json-summary', 'html'],
@@ -304,6 +307,24 @@ export default defineConfig(({ mode }) => ({
           lines: 80,
           statements: 80,
         },
+        'src/components/dialog/SubscribeFilesDialog.vue': {
+          branches: 85,
+          functions: 90,
+          lines: 90,
+          statements: 90,
+        },
+        'src/components/dialog/SubscribeHistoryDialog.vue': {
+          branches: 75,
+          functions: 80,
+          lines: 80,
+          statements: 80,
+        },
+        'src/components/dialog/SubscribeSeasonDialog.vue': {
+          branches: 85,
+          functions: 90,
+          lines: 90,
+          statements: 90,
+        },
         'src/composables/useMediaSubscribe.ts': {
           branches: 75,
           functions: 80,