diff --git a/apps/web/src/pages/generate/components/Step4TitleSettings.tsx b/apps/web/src/pages/generate/components/Step4TitleSettings.tsx
index fef2ca907..89caf44f1 100644
--- a/apps/web/src/pages/generate/components/Step4TitleSettings.tsx
+++ b/apps/web/src/pages/generate/components/Step4TitleSettings.tsx
@@ -90,7 +90,7 @@ const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
   )
 
   return (
-    <div className="xx-form-section xx-title-sidebar">
+    <div className="xx-form-section">
       <h3>📝 选择标题</h3>
 
       {!isBatch ? (
diff --git a/apps/web/src/pages/generate/generate.css b/apps/web/src/pages/generate/generate.css
index 95c5430c8..bf1325830 100644
--- a/apps/web/src/pages/generate/generate.css
+++ b/apps/web/src/pages/generate/generate.css
@@ -2880,11 +2880,6 @@
    Issue #1677 多视频批量生成
    ================================================================ */
 
-/* ── 标题设置区域（全宽区块，不再受侧边栏约束） ── */
-.xx-title-sidebar {
-  /* no max-height / overflow constraints */
-}
-
 /* ── 数量选择弹窗 ── */
 .xx-modal-mask {
   position: fixed;
@@ -3224,13 +3219,6 @@
   border-radius: 4px;
 }
 
-/* ── 响应式：窄屏标题区域 ── */
-@media (max-width: 960px) {
-  .xx-title-sidebar {
-    max-height: none;
-  }
-}
-
 .xx-batch-titles {
   display: flex;
   flex-direction: column;
diff --git a/apps/web/src/test/pages/generate/CanvasPreviewGrid.audio.test.tsx b/apps/web/src/test/pages/generate/CanvasPreviewGrid.audio.test.tsx
deleted file mode 100644
index b1d798ab9..000000000
--- a/apps/web/src/test/pages/generate/CanvasPreviewGrid.audio.test.tsx
+++ /dev/null
@@ -1,176 +0,0 @@
-/**
- * CanvasPreviewGrid 单测（Issue #1741 / #1750）
- *
- * 验证：
- * - N=3 时每个变体都拿到各自的 voiceAudioUrls[i]（独立配音模式，null=TTS 合成中）
- * - 每个变体都拿到各自的后端真实片段 variantClips[i]（serverClips），playToken 为 0 基变体序号
- * - 每个变体都收到 activePlayToken / onPlayTokenChange（播放互斥接线）
- * - 某个实例上报播放 → 所有实例的 activePlayToken 变为该实例（其他实例收到 token≠自身，自动暂停）
- * - 实例上报暂停（null）→ 播放权释放
- * - #1750 变体计划申请失败：渲染 role=alert 错误占位 ×N（严禁假数据/不渲染播放器），
- *   「重试」按钮仅变体 0 卡片出现且点击触发 onRetryClips
- * - #1750 加载态：渲染加载占位，不渲染播放器
- */
-import { describe, it, expect, beforeEach, vi } from "vitest"
-import { render, fireEvent, screen } from "@testing-library/react"
-import type { AssetItem } from "@/api/assets"
-import type { EditPlanClip } from "@/api/template-editor"
-
-const playerCalls = vi.hoisted(() => [] as Array<Record<string, unknown>>)
-
-vi.mock("@/pages/generate/components/FrontendPreviewPlayer", () => ({
-  default: (props: Record<string, unknown>) => {
-    playerCalls.push(props)
-    const token = props.playToken as number
-    const active = props.activePlayToken as number | null
-    const change = props.onPlayTokenChange as (t: number | null) => void
-    return (
-      <div data-testid={`player-${token}`}>
-        <span data-testid={`voice-${token}`}>{props.voiceAudioUrl ? "has-voice" : "no-voice"}</span>
-        <span data-testid={`token-${token}`}>{active == null ? "none" : String(active)}</span>
-        <button type="button" onClick={() => change(token)}>
-          play-{token}
-        </button>
-        <button type="button" onClick={() => change(null)}>
-          pause-{token}
-        </button>
-      </div>
-    )
-  },
-}))
-
-import CanvasPreviewGrid from "@/pages/generate/components/CanvasPreviewGrid"
-
-function makeAsset(id: string): AssetItem {
-  return {
-    id,
-    library_id: "lib-1",
-    name: `${id}.mp4`,
-    storage_key: `media/${id}.mp4`,
-    file_url: `https://cdn.example.com/${id}.mp4`,
-    mime_type: "video/mp4",
-    metadata: { duration: 10 },
-    duration: 10,
-  }
-}
-
-function makeClips(variant: number): EditPlanClip[] {
-  return ["a1", "a2"].map((assetId, order) => ({
-    id: `clip-v${variant}-${assetId}`,
-    plan_id: `plan-${variant}`,
-    clip_type: "main",
-    order,
-    asset_id: assetId,
-    text_content: "",
-    start_time: 0,
-    duration: 5,
-    transition_effect: "none",
-    transition_duration: 0,
-    playback_speed: 1,
-    status: "ready",
-    config: {},
-  }))
-}
-
-const titleSettings = {
-  size: 36,
-  font: "思源黑体",
-  color: "#fff",
-  position: "bottom" as const,
-  bold: false,
-  italic: false,
-  stroke: true,
-  shadow: false,
-  posX: null,
-  posY: null,
-}
-
-const variantClips: EditPlanClip[][] = [makeClips(0), makeClips(1), makeClips(2)]
-
-function renderGrid(overrides: Record<string, unknown> = {}) {
-  playerCalls.length = 0
-  return render(
-    <CanvasPreviewGrid
-      count={3}
-      assets={[makeAsset("a1"), makeAsset("a2"), makeAsset("a3")]}
-      videoRatio="9:16"
-      titles={["标题1", "标题2", "标题3"]}
-      titleSettings={titleSettings}
-      variantClips={variantClips}
-      voiceAudioUrls={["https://cdn.example.com/v0.mp3", null, "https://cdn.example.com/v2.mp3"]}
-      selectedIds={[0, 1, 2]}
-      onToggleSelect={() => {}}
-      {...overrides}
-    />,
-  )
-}
-
-describe("CanvasPreviewGrid 配音、真实片段与播放互斥 (#1741/#1750)", () => {
-  beforeEach(() => {
-    playerCalls.length = 0
-  })
-
-  it("N=3 时每个变体都拿到各自的配音 URL 与后端真实片段，playToken 为 0 基序号", () => {
-    renderGrid()
-    expect(playerCalls).toHaveLength(3)
-    playerCalls.forEach((p, i) => {
-      expect(p.playToken).toBe(i)
-      expect(p.serverClips).toBe(variantClips[i])
-      expect(p.variantTitle).toBe(`标题${i + 1}`)
-    })
-    // 独立配音：变体 0/2 有各自 URL；变体 1 为 null（TTS 合成中）→ 传 undefined
-    expect(playerCalls[0].voiceAudioUrl).toBe("https://cdn.example.com/v0.mp3")
-    expect(playerCalls[1].voiceAudioUrl).toBeUndefined()
-    expect(playerCalls[2].voiceAudioUrl).toBe("https://cdn.example.com/v2.mp3")
-    // 配音状态徽标
-    expect(screen.getByTestId("voice-0").textContent).toBe("has-voice")
-    expect(screen.getByTestId("voice-1").textContent).toBe("no-voice")
-    expect(screen.getByTestId("voice-2").textContent).toBe("has-voice")
-  })
-
-  it("每个变体都接线 activePlayToken / onPlayTokenChange", () => {
-    renderGrid()
-    playerCalls.forEach((p) => {
-      expect(p.activePlayToken).toBeNull()
-      expect(typeof p.onPlayTokenChange).toBe("function")
-    })
-  })
-
-  it("点击变体2播放：所有实例 activePlayToken 变为 1（0 基，其他实例自动暂停）", () => {
-    renderGrid()
-    fireEvent.click(screen.getByTestId("player-1").querySelector("button")!)
-    expect(screen.getByTestId("token-0").textContent).toBe("1")
-    expect(screen.getByTestId("token-1").textContent).toBe("1")
-    expect(screen.getByTestId("token-2").textContent).toBe("1")
-  })
-
-  it("正在播放实例上报暂停后，播放权释放（token 回 null）", () => {
-    renderGrid()
-    fireEvent.click(screen.getByTestId("player-2").querySelector("button")!)
-    expect(screen.getByTestId("token-0").textContent).toBe("2")
-
-    fireEvent.click(screen.getByTestId("player-2").querySelectorAll("button")[1])
-    expect(screen.getByTestId("token-2").textContent).toBe("none")
-  })
-
-  it("clipsError：每张卡片显示错误占位（role=alert）且不渲染任何播放器，重试按钮仅一个并触发回调", () => {
-    const onRetry = vi.fn()
-    renderGrid({ clipsError: true, onRetryClips: onRetry })
-    expect(screen.getAllByRole("alert")).toHaveLength(3)
-    expect(screen.getAllByText("预览加载失败，请重试")).toHaveLength(3)
-    // 严禁假数据：错误态不渲染播放器
-    expect(playerCalls).toHaveLength(0)
-    // 重试按钮仅变体 0 卡片出现
-    const retryButtons = screen.getAllByText("重试")
-    expect(retryButtons).toHaveLength(1)
-    fireEvent.click(retryButtons[0])
-    expect(onRetry).toHaveBeenCalledTimes(1)
-  })
-
-  it("clipsLoading：渲染加载占位，不渲染播放器", () => {
-    renderGrid({ clipsLoading: true })
-    expect(screen.getAllByText("独立选片中…")).toHaveLength(3)
-    expect(screen.queryAllByRole("alert")).toHaveLength(0)
-    expect(playerCalls).toHaveLength(0)
-  })
-})
diff --git a/apps/web/src/test/pages/generate/FrontendPreviewPlayer.audio.test.tsx b/apps/web/src/test/pages/generate/FrontendPreviewPlayer.audio.test.tsx
deleted file mode 100644
index 1379c33fd..000000000
--- a/apps/web/src/test/pages/generate/FrontendPreviewPlayer.audio.test.tsx
+++ /dev/null
@@ -1,213 +0,0 @@
-/**
- * FrontendPreviewPlayer 音频行为单测（Issue #1741 / #1750）
- *
- * useSegmentScheduler 用 mock 控制播放态，专注验证本组件的音频逻辑：
- * - 有配音时 video 保持 muted（素材原声不与配音混音）
- * - 无配音时 video 不 muted（素材原声兜底，保证任何情况下播放有声）
- * - 静音按钮：默认有声；点击后切 muted，aria-label 与图标切换
- * - 批量播放互斥（#1750 playToken 为 0 基变体序号）：activePlayToken 变为其他实例且本实例在播放时，调用 pause
- * - 点击播放/暂停时上报播放权（onPlayTokenChange）
- * - #1750：serverClips 是唯一片段来源，缺失时不渲染任何 video（无本地模拟 fallback）
- */
-import { describe, it, expect, beforeEach, vi } from "vitest"
-import { render, screen, fireEvent } from "@testing-library/react"
-import FrontendPreviewPlayer from "@/pages/generate/components/FrontendPreviewPlayer"
-import type { AssetItem } from "@/api/assets"
-import type { EditPlanClip } from "@/api/template-editor"
-
-const mocks = vi.hoisted(() => ({
-  isPlaying: false,
-  pause: vi.fn(),
-  togglePlayPause: vi.fn(),
-}))
-
-vi.mock("@/pages/generate/hooks/useSegmentScheduler", () => ({
-  // segments 由组件 buildPlaybackSegments 产出（唯一来源 serverClips）；
-  // canPlay 与真实 hook 一致：无片段时不可播放
-  useSegmentScheduler: vi.fn((segments: unknown[]) => ({
-    isPlaying: mocks.isPlaying,
-    currentTime: 0,
-    totalDuration: 20,
-    currentSegmentIndex: 0,
-    canPlay: segments.length > 0,
-    togglePlayPause: mocks.togglePlayPause,
-    seekTo: vi.fn(),
-    pause: mocks.pause,
-    videoRefs: { current: [] as (HTMLVideoElement | null)[] },
-  })),
-}))
-
-vi.mock("@/pages/generate/hooks/useCanvasPlayer", () => ({
-  useCanvasPlayer: () => ({
-    state: {
-      isPlaying: false,
-      isReady: false,
-      isBuffering: false,
-      currentTime: 0,
-      duration: 0,
-      errorMessage: "",
-      hasDecodeError: false,
-    },
-    controls: { play: vi.fn(), pause: vi.fn(), seek: vi.fn() },
-  }),
-}))
-
-beforeEach(() => {
-  mocks.isPlaying = false
-  mocks.pause.mockClear()
-  mocks.togglePlayPause.mockClear()
-  vi.stubGlobal(
-    "ResizeObserver",
-    class {
-      observe() {}
-      unobserve() {}
-      disconnect() {}
-    },
-  )
-})
-
-function makeAsset(id: string): AssetItem {
-  return {
-    id,
-    library_id: "lib-1",
-    name: `${id}.mp4`,
-    storage_key: `media/${id}.mp4`,
-    file_url: `https://cdn.example.com/${id}.mp4`,
-    mime_type: "video/mp4",
-    metadata: { duration: 10, width: 1080, height: 1920 },
-    duration: 10,
-  }
-}
-
-function makeClip(assetId: string, order: number): EditPlanClip {
-  return {
-    id: `clip-${assetId}`,
-    plan_id: "plan-1",
-    clip_type: "main",
-    order,
-    asset_id: assetId,
-    text_content: "",
-    start_time: 0,
-    duration: 5,
-    transition_effect: "none",
-    transition_duration: 0,
-    playback_speed: 1,
-    status: "ready",
-    config: {},
-  }
-}
-
-const serverClips = [makeClip("a1", 0), makeClip("a2", 1)]
-
-const baseProps = {
-  assets: [makeAsset("a1"), makeAsset("a2")],
-  videoRatio: "9:16",
-  ready: true,
-  serverClips,
-}
-
-function videos(): HTMLVideoElement[] {
-  return Array.from(document.querySelectorAll("video"))
-}
-
-describe("FrontendPreviewPlayer 音频行为 (#1741/#1750)", () => {
-  it("有配音时 video 保持 muted（素材原声不与配音混音）", () => {
-    render(<FrontendPreviewPlayer {...baseProps} voiceAudioUrl="https://cdn.example.com/tts.mp3" />)
-    expect(videos()).toHaveLength(2)
-    videos().forEach((v) => expect(v.muted).toBe(true))
-  })
-
-  it("无配音时 video 不 muted（素材原声兜底）", () => {
-    render(<FrontendPreviewPlayer {...baseProps} />)
-    videos().forEach((v) => expect(v.muted).toBe(false))
-  })
-
-  it("无配音时点静音按钮，video 切换为 muted；再点恢复", () => {
-    render(<FrontendPreviewPlayer {...baseProps} />)
-    const vs = videos()
-    expect(vs[0].muted).toBe(false)
-
-    fireEvent.click(screen.getByRole("button", { name: "静音" }))
-    videos().forEach((v) => expect(v.muted).toBe(true))
-
-    fireEvent.click(screen.getByRole("button", { name: "取消静音" }))
-    videos().forEach((v) => expect(v.muted).toBe(false))
-  })
-
-  it("批量播放互斥：token 变为其他实例且本实例在播放时调用 pause", () => {
-    mocks.isPlaying = true
-    const { rerender } = render(
-      <FrontendPreviewPlayer
-        {...baseProps}
-        playToken={1}
-        activePlayToken={1}
-        onPlayTokenChange={() => {}}
-        compact
-      />,
-    )
-    expect(mocks.pause).not.toHaveBeenCalled()
-
-    // 播放权切给实例 2（0 基 token）
-    rerender(
-      <FrontendPreviewPlayer
-        {...baseProps}
-        playToken={1}
-        activePlayToken={2}
-        onPlayTokenChange={() => {}}
-        compact
-      />,
-    )
-    expect(mocks.pause).toHaveBeenCalledTimes(1)
-
-    // token 切回自己：不重复暂停
-    rerender(
-      <FrontendPreviewPlayer
-        {...baseProps}
-        playToken={1}
-        activePlayToken={1}
-        onPlayTokenChange={() => {}}
-        compact
-      />,
-    )
-    expect(mocks.pause).toHaveBeenCalledTimes(1)
-  })
-
-  it("未播放时 token 变化不触发暂停（effect 仅在本实例播放时生效）", () => {
-    // mocks.isPlaying = false（beforeEach 重置）
-    const { rerender } = render(
-      <FrontendPreviewPlayer {...baseProps} playToken={0} activePlayToken={0} compact />,
-    )
-    rerender(<FrontendPreviewPlayer {...baseProps} playToken={0} activePlayToken={1} compact />)
-    expect(mocks.pause).not.toHaveBeenCalled()
-  })
-
-  it("暂停状态下点击播放按钮：上报播放权为自身 playToken 并触发播放", () => {
-    const onToken = vi.fn()
-    render(
-      <FrontendPreviewPlayer {...baseProps} playToken={2} onPlayTokenChange={onToken} compact />,
-    )
-    // 暂停态有两个图标播放按钮（中央大按钮 + 控制条按钮），均调 handleTogglePlay，点中央那个
-    const playButtons = screen.getAllByRole("button").filter((b) => !b.getAttribute("aria-label"))
-    expect(playButtons.length).toBeGreaterThanOrEqual(1)
-    fireEvent.click(playButtons[0])
-    expect(onToken).toHaveBeenCalledWith(2)
-    expect(mocks.togglePlayPause).toHaveBeenCalledTimes(1)
-  })
-
-  it("每个卡片都渲染独立静音按钮", () => {
-    render(
-      <div>
-        <FrontendPreviewPlayer {...baseProps} playToken={0} compact />
-        <FrontendPreviewPlayer {...baseProps} playToken={1} compact />
-        <FrontendPreviewPlayer {...baseProps} playToken={2} compact />
-      </div>,
-    )
-    expect(screen.getAllByRole("button", { name: "静音" })).toHaveLength(3)
-  })
-
-  it("#1750 serverClips 缺失时不渲染任何 video（无本地模拟 fallback，显示无可播放素材）", () => {
-    render(<FrontendPreviewPlayer {...baseProps} serverClips={undefined} />)
-    expect(videos()).toHaveLength(0)
-    expect(screen.getByText("暂无可播放素材")).toBeInTheDocument()
-  })
-})
diff --git a/apps/web/src/test/pages/generate/step5-preview.smoke.test.tsx b/apps/web/src/test/pages/generate/step5-preview.smoke.test.tsx
deleted file mode 100644
index 553cb4222..000000000
--- a/apps/web/src/test/pages/generate/step5-preview.smoke.test.tsx
+++ /dev/null
@@ -1,15 +0,0 @@
-/**
- * Step4+5 preview smoke test (legacy — preview components removed)
- * 保留最小测试确保 vitest related 模式仍能匹配 generate 目录改动
- */
-import { describe, it, expect } from "vitest"
-
-import "@/pages/generate/hooks/useStepNavigation"
-import "@/pages/generate/components/GenerateStepContent"
-import "@/pages/generate/GeneratePage"
-
-describe("Generate page smoke test", () => {
-  it("should load generate modules", () => {
-    expect(true).toBe(true)
-  })
-})