fix(title): 标题/字幕字号按 video_width/720 等比缩放，修复成片标题比预览过小 (#2023 )

Co-authored-by: xiaoxia <dev@xiaoxiajianji.com> Co-committed-by: xiaoxia <dev@xiaoxiajianji.com>
refactor(generate): 删除前端视频预览 + AI 标题生成，Step3 全宽展示标题模板卡片 (#2022 )
2026-09-23 23:17:12 +08:00 · 2026-09-23 22:17:21 +08:00 · 2026-09-23 17:16:19 +08:00 · 2026-09-23 15:53:25 +08:00 · 2026-09-23 14:54:57 +08:00 · 2026-09-23 14:20:59 +08:00
49 changed files with 2419 additions and 3857 deletions
@@ -12,6 +12,8 @@
        "@tanstack/react-query": "^5.45.0",
        "antd": "^5.18.0",
        "axios": "^1.7.2",
+        "classnames": "^2.5.1",
+        "dayjs": "^1.11.23",
        "mp4box": "^2.4.1",
        "react": "^18.3.1",
        "react-dom": "^18.3.1",
@@ -3005,9 +3007,9 @@
      }
    },
    "node_modules/dayjs": {
-      "version": "1.11.21",
-      "resolved": "https://registry.npmjs.org/dayjs/-/dayjs-1.11.21.tgz",
-      "integrity": "sha512-98IT+HOahAisibz/yjKbzuOBwYcjJ7BCLPzARyHiyEBmRz4fatF+KPJszEHXsGYjUG234aH/cOjW1wwTbKUZlA==",
+      "version": "1.11.23",
+      "resolved": "https://registry.npmmirror.com/dayjs/-/dayjs-1.11.23.tgz",
+      "integrity": "sha512-QDTCU0M0MxR3hQfnlDJfwekQiaanm1ubOD231u73WBckQ/fsamwRLiE2GBz6D3a/xF1NgfiDLJjXBa1hYOYTtQ==",
      "license": "MIT"
    },
    "node_modules/debug": {
@@ -23,6 +23,8 @@
    "@tanstack/react-query": "^5.45.0",
    "antd": "^5.18.0",
    "axios": "^1.7.2",
+    "classnames": "^2.5.1",
+    "dayjs": "^1.11.23",
    "mp4box": "^2.4.1",
    "react": "^18.3.1",
    "react-dom": "^18.3.1",
@@ -18,7 +18,16 @@ importers:
        version: 5.29.3(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      axios:
        specifier: ^1.7.2
-        version: 1.18.1
+        version: 1.18.1(debug@4.4.3(supports-color@7.2.0))(supports-color@7.2.0)
+      classnames:
+        specifier: ^2.5.1
+        version: 2.5.1
+      dayjs:
+        specifier: ^1.11.23
+        version: 1.11.23
+      mp4box:
+        specifier: ^2.4.1
+        version: 2.4.1
      react:
        specifier: ^18.3.1
        version: 18.3.1
@@ -43,7 +52,7 @@ importers:
        version: 16.3.2(@testing-library/dom@10.4.1)(@types/react-dom@18.3.7(@types/react@18.3.31))(@types/react@18.3.31)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      "@testing-library/user-event":
        specifier: ^14.5.2
-        version: 14.6.1(@testing-library/dom@10.4.1)
+        version: 14.6.7(@testing-library/dom@10.4.1)
      "@types/node":
        specifier: ^20.14.9
        version: 20.19.43
@@ -55,34 +64,34 @@ importers:
        version: 18.3.7(@types/react@18.3.31)
      "@typescript-eslint/eslint-plugin":
        specifier: ^7.13.1
-        version: 7.13.1(@typescript-eslint/parser@7.13.1(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)(typescript@5.5.3)
+        version: 7.13.1(@typescript-eslint/parser@7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3))(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)
      "@typescript-eslint/parser":
        specifier: ^7.13.1
-        version: 7.13.1(eslint@8.57.0)(typescript@5.5.3)
+        version: 7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)
      "@vitejs/plugin-react":
        specifier: ^4.3.1
-        version: 4.3.1(vite@5.3.1(@types/node@20.19.43))
+        version: 4.3.1(supports-color@7.2.0)(vite@5.3.1(@types/node@20.19.43))
      "@vitest/coverage-v8":
        specifier: ^1.6.1
-        version: 1.6.1(vitest@1.6.0)
+        version: 1.6.1(supports-color@7.2.0)(vitest@1.6.0)
      "@vitest/ui":
        specifier: ^1.6.0
        version: 1.6.0(vitest@1.6.0)
      eslint:
        specifier: ^8.57.0
-        version: 8.57.0
+        version: 8.57.0(supports-color@7.2.0)
      eslint-config-prettier:
        specifier: ^9.1.2
-        version: 9.1.2(eslint@8.57.0)
+        version: 9.1.2(eslint@8.57.0(supports-color@7.2.0))
      eslint-plugin-react-hooks:
        specifier: ^4.6.2
-        version: 4.6.2(eslint@8.57.0)
+        version: 4.6.2(eslint@8.57.0(supports-color@7.2.0))
      eslint-plugin-react-refresh:
        specifier: ^0.4.7
-        version: 0.4.26(eslint@8.57.0)
+        version: 0.4.26(eslint@8.57.0(supports-color@7.2.0))
      jsdom:
        specifier: ^24.1.0
-        version: 24.1.0
+        version: 24.1.0(supports-color@7.2.0)
      prettier:
        specifier: ^3.9.5
        version: 3.9.5
@@ -94,7 +103,7 @@ importers:
        version: 5.3.1(@types/node@20.19.43)
      vitest:
        specifier: ^1.6.0
-        version: 1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0)
+        version: 1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0(supports-color@7.2.0))(supports-color@7.2.0)

 packages:
  "@adobe/css-tools@4.5.0":
@@ -1127,10 +1136,10 @@ packages:
      "@types/react-dom":
        optional: true

-  "@testing-library/user-event@14.6.1":
+  "@testing-library/user-event@14.6.7":
    resolution:
      {
-        integrity: sha512-vq7fv0rnt+QTXgPxr5Hjc210p6YKq2kmdziLgnsZGgLJ9e6VAShx1pACLuRjd/AS/sr7phAR58OIIpf0LlmQNw==,
+        integrity: sha512-MPCpX8bxe8zS+JmmTwLp8jd0dy1rAm60Te/SL8JrQM3qvQJcBOs1d7IefJMyZzqM3EWBrDn/LWDt1BCGu4ASfg==,
      }
    engines: { node: ">=12", npm: ">=6" }
    peerDependencies:
@@ -1672,10 +1681,10 @@ packages:
      }
    engines: { node: ">=18" }

-  dayjs@1.11.21:
+  dayjs@1.11.23:
    resolution:
      {
-        integrity: sha512-98IT+HOahAisibz/yjKbzuOBwYcjJ7BCLPzARyHiyEBmRz4fatF+KPJszEHXsGYjUG234aH/cOjW1wwTbKUZlA==,
+        integrity: sha512-QDTCU0M0MxR3hQfnlDJfwekQiaanm1ubOD231u73WBckQ/fsamwRLiE2GBz6D3a/xF1NgfiDLJjXBa1hYOYTtQ==,
      }

  debug@4.4.3:
@@ -2546,6 +2555,13 @@ packages:
        integrity: sha512-d+ObxMQFmbt10sretNDytwt85VrbkhhUA/JBGm1MPaWJ65Cl4wOgLaB1NYvJSZ0Ef03MMEU/0xpPMXUIQ29UfA==,
      }

+  mp4box@2.4.1:
+    resolution:
+      {
+        integrity: sha512-0HGX7nXoDIX6FKLVl4a3wtYjBlwqsN3xuQC3GXzNtKp98FXUOhDSq623azsz8DG5ptd9ZXcXodDkgbdMZOjWvw==,
+      }
+    engines: { node: ">=20.8.1" }
+
  mrmime@2.0.1:
    resolution:
      {
@@ -3861,20 +3877,20 @@ snapshots:

  "@babel/compat-data@7.29.7": {}

-  "@babel/core@7.29.7":
+  "@babel/core@7.29.7(supports-color@7.2.0)":
    dependencies:
      "@babel/code-frame": 7.29.7
      "@babel/generator": 7.29.7
      "@babel/helper-compilation-targets": 7.29.7
-      "@babel/helper-module-transforms": 7.29.7(@babel/core@7.29.7)
+      "@babel/helper-module-transforms": 7.29.7(@babel/core@7.29.7(supports-color@7.2.0))(supports-color@7.2.0)
      "@babel/helpers": 7.29.7
      "@babel/parser": 7.29.7
      "@babel/template": 7.29.7
-      "@babel/traverse": 7.29.7
+      "@babel/traverse": 7.29.7(supports-color@7.2.0)
      "@babel/types": 7.29.7
      "@jridgewell/remapping": 2.3.5
      convert-source-map: 2.0.0
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      gensync: 1.0.0-beta.2
      json5: 2.2.3
      semver: 6.3.1
@@ -3899,19 +3915,19 @@ snapshots:

  "@babel/helper-globals@7.29.7": {}

-  "@babel/helper-module-imports@7.29.7":
+  "@babel/helper-module-imports@7.29.7(supports-color@7.2.0)":
    dependencies:
-      "@babel/traverse": 7.29.7
+      "@babel/traverse": 7.29.7(supports-color@7.2.0)
      "@babel/types": 7.29.7
    transitivePeerDependencies:
      - supports-color

-  "@babel/helper-module-transforms@7.29.7(@babel/core@7.29.7)":
+  "@babel/helper-module-transforms@7.29.7(@babel/core@7.29.7(supports-color@7.2.0))(supports-color@7.2.0)":
    dependencies:
-      "@babel/core": 7.29.7
-      "@babel/helper-module-imports": 7.29.7
+      "@babel/core": 7.29.7(supports-color@7.2.0)
+      "@babel/helper-module-imports": 7.29.7(supports-color@7.2.0)
      "@babel/helper-validator-identifier": 7.29.7
-      "@babel/traverse": 7.29.7
+      "@babel/traverse": 7.29.7(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

@@ -3932,14 +3948,14 @@ snapshots:
    dependencies:
      "@babel/types": 7.29.7

-  "@babel/plugin-transform-react-jsx-self@7.29.7(@babel/core@7.29.7)":
+  "@babel/plugin-transform-react-jsx-self@7.29.7(@babel/core@7.29.7(supports-color@7.2.0))":
    dependencies:
-      "@babel/core": 7.29.7
+      "@babel/core": 7.29.7(supports-color@7.2.0)
      "@babel/helper-plugin-utils": 7.29.7

-  "@babel/plugin-transform-react-jsx-source@7.29.7(@babel/core@7.29.7)":
+  "@babel/plugin-transform-react-jsx-source@7.29.7(@babel/core@7.29.7(supports-color@7.2.0))":
    dependencies:
-      "@babel/core": 7.29.7
+      "@babel/core": 7.29.7(supports-color@7.2.0)
      "@babel/helper-plugin-utils": 7.29.7

  "@babel/runtime@7.29.7": {}
@@ -3950,7 +3966,7 @@ snapshots:
      "@babel/parser": 7.29.7
      "@babel/types": 7.29.7

-  "@babel/traverse@7.29.7":
+  "@babel/traverse@7.29.7(supports-color@7.2.0)":
    dependencies:
      "@babel/code-frame": 7.29.7
      "@babel/generator": 7.29.7
@@ -3958,7 +3974,7 @@ snapshots:
      "@babel/parser": 7.29.7
      "@babel/template": 7.29.7
      "@babel/types": 7.29.7
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

@@ -4044,17 +4060,17 @@ snapshots:
  "@esbuild/win32-x64@0.21.3":
    optional: true

-  "@eslint-community/eslint-utils@4.9.1(eslint@8.57.0)":
+  "@eslint-community/eslint-utils@4.9.1(eslint@8.57.0(supports-color@7.2.0))":
    dependencies:
-      eslint: 8.57.0
+      eslint: 8.57.0(supports-color@7.2.0)
      eslint-visitor-keys: 3.4.3

  "@eslint-community/regexpp@4.12.2": {}

-  "@eslint/eslintrc@2.1.4":
+  "@eslint/eslintrc@2.1.4(supports-color@7.2.0)":
    dependencies:
      ajv: 6.15.0
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      espree: 9.6.1
      globals: 13.19.0
      ignore: 5.2.0
@@ -4067,10 +4083,10 @@ snapshots:

  "@eslint/js@8.57.0": {}

-  "@humanwhocodes/config-array@0.11.14":
+  "@humanwhocodes/config-array@0.11.14(supports-color@7.2.0)":
    dependencies:
      "@humanwhocodes/object-schema": 2.0.3
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      minimatch: 3.1.5
    transitivePeerDependencies:
      - supports-color
@@ -4360,7 +4376,7 @@ snapshots:
      "@types/react": 18.3.31
      "@types/react-dom": 18.3.7(@types/react@18.3.31)

-  "@testing-library/user-event@14.6.1(@testing-library/dom@10.4.1)":
+  "@testing-library/user-event@14.6.7(@testing-library/dom@10.4.1)":
    dependencies:
      "@testing-library/dom": 10.4.1

@@ -4420,15 +4436,15 @@ snapshots:
    dependencies:
      "@types/yargs-parser": 21.0.3

-  "@typescript-eslint/eslint-plugin@7.13.1(@typescript-eslint/parser@7.13.1(eslint@8.57.0)(typescript@5.5.3))(eslint@8.57.0)(typescript@5.5.3)":
+  "@typescript-eslint/eslint-plugin@7.13.1(@typescript-eslint/parser@7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3))(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)":
    dependencies:
      "@eslint-community/regexpp": 4.12.2
-      "@typescript-eslint/parser": 7.13.1(eslint@8.57.0)(typescript@5.5.3)
+      "@typescript-eslint/parser": 7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)
      "@typescript-eslint/scope-manager": 7.13.1
-      "@typescript-eslint/type-utils": 7.13.1(eslint@8.57.0)(typescript@5.5.3)
-      "@typescript-eslint/utils": 7.13.1(eslint@8.57.0)(typescript@5.5.3)
+      "@typescript-eslint/type-utils": 7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)
+      "@typescript-eslint/utils": 7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)
      "@typescript-eslint/visitor-keys": 7.13.1
-      eslint: 8.57.0
+      eslint: 8.57.0(supports-color@7.2.0)
      graphemer: 1.4.0
      ignore: 5.3.1
      natural-compare: 1.4.0
@@ -4438,14 +4454,14 @@ snapshots:
    transitivePeerDependencies:
      - supports-color

-  "@typescript-eslint/parser@7.13.1(eslint@8.57.0)(typescript@5.5.3)":
+  "@typescript-eslint/parser@7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)":
    dependencies:
      "@typescript-eslint/scope-manager": 7.13.1
      "@typescript-eslint/types": 7.13.1
-      "@typescript-eslint/typescript-estree": 7.13.1(typescript@5.5.3)
+      "@typescript-eslint/typescript-estree": 7.13.1(supports-color@7.2.0)(typescript@5.5.3)
      "@typescript-eslint/visitor-keys": 7.13.1
-      debug: 4.4.3
-      eslint: 8.57.0
+      debug: 4.4.3(supports-color@7.2.0)
+      eslint: 8.57.0(supports-color@7.2.0)
    optionalDependencies:
      typescript: 5.5.3
    transitivePeerDependencies:
@@ -4456,12 +4472,12 @@ snapshots:
      "@typescript-eslint/types": 7.13.1
      "@typescript-eslint/visitor-keys": 7.13.1

-  "@typescript-eslint/type-utils@7.13.1(eslint@8.57.0)(typescript@5.5.3)":
+  "@typescript-eslint/type-utils@7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)":
    dependencies:
-      "@typescript-eslint/typescript-estree": 7.13.1(typescript@5.5.3)
-      "@typescript-eslint/utils": 7.13.1(eslint@8.57.0)(typescript@5.5.3)
-      debug: 4.4.3
-      eslint: 8.57.0
+      "@typescript-eslint/typescript-estree": 7.13.1(supports-color@7.2.0)(typescript@5.5.3)
+      "@typescript-eslint/utils": 7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)
+      debug: 4.4.3(supports-color@7.2.0)
+      eslint: 8.57.0(supports-color@7.2.0)
      ts-api-utils: 1.3.0(typescript@5.5.3)
    optionalDependencies:
      typescript: 5.5.3
@@ -4470,11 +4486,11 @@ snapshots:

  "@typescript-eslint/types@7.13.1": {}

-  "@typescript-eslint/typescript-estree@7.13.1(typescript@5.5.3)":
+  "@typescript-eslint/typescript-estree@7.13.1(supports-color@7.2.0)(typescript@5.5.3)":
    dependencies:
      "@typescript-eslint/types": 7.13.1
      "@typescript-eslint/visitor-keys": 7.13.1
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      globby: 11.1.0
      is-glob: 4.0.3
      minimatch: 9.0.9
@@ -4485,13 +4501,13 @@ snapshots:
    transitivePeerDependencies:
      - supports-color

-  "@typescript-eslint/utils@7.13.1(eslint@8.57.0)(typescript@5.5.3)":
+  "@typescript-eslint/utils@7.13.1(eslint@8.57.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.5.3)":
    dependencies:
-      "@eslint-community/eslint-utils": 4.9.1(eslint@8.57.0)
+      "@eslint-community/eslint-utils": 4.9.1(eslint@8.57.0(supports-color@7.2.0))
      "@typescript-eslint/scope-manager": 7.13.1
      "@typescript-eslint/types": 7.13.1
-      "@typescript-eslint/typescript-estree": 7.13.1(typescript@5.5.3)
-      eslint: 8.57.0
+      "@typescript-eslint/typescript-estree": 7.13.1(supports-color@7.2.0)(typescript@5.5.3)
+      eslint: 8.57.0(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color
      - typescript
@@ -4503,25 +4519,25 @@ snapshots:

  "@ungap/structured-clone@1.3.3": {}

-  "@vitejs/plugin-react@4.3.1(vite@5.3.1(@types/node@20.19.43))":
+  "@vitejs/plugin-react@4.3.1(supports-color@7.2.0)(vite@5.3.1(@types/node@20.19.43))":
    dependencies:
-      "@babel/core": 7.29.7
-      "@babel/plugin-transform-react-jsx-self": 7.29.7(@babel/core@7.29.7)
-      "@babel/plugin-transform-react-jsx-source": 7.29.7(@babel/core@7.29.7)
+      "@babel/core": 7.29.7(supports-color@7.2.0)
+      "@babel/plugin-transform-react-jsx-self": 7.29.7(@babel/core@7.29.7(supports-color@7.2.0))
+      "@babel/plugin-transform-react-jsx-source": 7.29.7(@babel/core@7.29.7(supports-color@7.2.0))
      "@types/babel__core": 7.20.5
      react-refresh: 0.14.2
      vite: 5.3.1(@types/node@20.19.43)
    transitivePeerDependencies:
      - supports-color

-  "@vitest/coverage-v8@1.6.1(vitest@1.6.0)":
+  "@vitest/coverage-v8@1.6.1(supports-color@7.2.0)(vitest@1.6.0)":
    dependencies:
      "@ampproject/remapping": 2.3.0
      "@bcoe/v8-coverage": 0.2.3
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      istanbul-lib-coverage: 3.2.2
      istanbul-lib-report: 3.0.1
-      istanbul-lib-source-maps: 5.0.6
+      istanbul-lib-source-maps: 5.0.6(supports-color@7.2.0)
      istanbul-reports: 3.2.0
      magic-string: 0.30.5
      magicast: 0.3.3
@@ -4529,7 +4545,7 @@ snapshots:
      std-env: 3.5.0
      strip-literal: 2.1.1
      test-exclude: 6.0.0
-      vitest: 1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0)
+      vitest: 1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0(supports-color@7.2.0))(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

@@ -4564,7 +4580,7 @@ snapshots:
      pathe: 1.1.2
      picocolors: 1.1.1
      sirv: 2.0.4
-      vitest: 1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0)
+      vitest: 1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0(supports-color@7.2.0))(supports-color@7.2.0)

  "@vitest/utils@1.6.0":
    dependencies:
@@ -4583,21 +4599,21 @@ snapshots:

  acorn@8.17.0: {}

-  agent-base@6.0.0:
+  agent-base@6.0.0(supports-color@7.2.0):
    dependencies:
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

-  agent-base@7.0.2:
+  agent-base@7.0.2(supports-color@7.2.0):
    dependencies:
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

-  agent-base@7.1.0:
+  agent-base@7.1.0(supports-color@7.2.0):
    dependencies:
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

@@ -4632,7 +4648,7 @@ snapshots:
      "@rc-component/trigger": 2.3.1(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      classnames: 2.5.1
      copy-to-clipboard: 3.3.3
-      dayjs: 1.11.21
+      dayjs: 1.11.23
      rc-cascader: 3.34.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      rc-checkbox: 3.5.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      rc-collapse: 3.9.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
@@ -4648,7 +4664,7 @@ snapshots:
      rc-motion: 2.9.5(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      rc-notification: 5.6.4(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      rc-pagination: 5.1.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
-      rc-picker: 4.11.3(dayjs@1.11.21)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
+      rc-picker: 4.11.3(dayjs@1.11.23)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      rc-progress: 4.0.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      rc-rate: 2.13.1(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
      rc-resize-observer: 1.4.3(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
@@ -4688,11 +4704,11 @@ snapshots:

  asynckit@0.4.0: {}

-  axios@1.18.1:
+  axios@1.18.1(debug@4.4.3(supports-color@7.2.0))(supports-color@7.2.0):
    dependencies:
-      follow-redirects: 1.16.0
+      follow-redirects: 1.16.0(debug@4.4.3(supports-color@7.2.0))
      form-data: 4.0.6
-      https-proxy-agent: 5.0.1
+      https-proxy-agent: 5.0.1(supports-color@7.2.0)
      proxy-from-env: 2.1.0
    transitivePeerDependencies:
      - debug
@@ -4796,11 +4812,13 @@ snapshots:
      whatwg-mimetype: 4.0.0
      whatwg-url: 14.0.0

-  dayjs@1.11.21: {}
+  dayjs@1.11.23: {}

-  debug@4.4.3:
+  debug@4.4.3(supports-color@7.2.0):
    dependencies:
      ms: 2.1.3
+    optionalDependencies:
+      supports-color: 7.2.0

  decimal.js@10.6.0: {}

@@ -4883,17 +4901,17 @@ snapshots:

  escape-string-regexp@4.0.0: {}

-  eslint-config-prettier@9.1.2(eslint@8.57.0):
+  eslint-config-prettier@9.1.2(eslint@8.57.0(supports-color@7.2.0)):
    dependencies:
-      eslint: 8.57.0
+      eslint: 8.57.0(supports-color@7.2.0)

-  eslint-plugin-react-hooks@4.6.2(eslint@8.57.0):
+  eslint-plugin-react-hooks@4.6.2(eslint@8.57.0(supports-color@7.2.0)):
    dependencies:
-      eslint: 8.57.0
+      eslint: 8.57.0(supports-color@7.2.0)

-  eslint-plugin-react-refresh@0.4.26(eslint@8.57.0):
+  eslint-plugin-react-refresh@0.4.26(eslint@8.57.0(supports-color@7.2.0)):
    dependencies:
-      eslint: 8.57.0
+      eslint: 8.57.0(supports-color@7.2.0)

  eslint-scope@7.2.2:
    dependencies:
@@ -4902,20 +4920,20 @@ snapshots:

  eslint-visitor-keys@3.4.3: {}

-  eslint@8.57.0:
+  eslint@8.57.0(supports-color@7.2.0):
    dependencies:
-      "@eslint-community/eslint-utils": 4.9.1(eslint@8.57.0)
+      "@eslint-community/eslint-utils": 4.9.1(eslint@8.57.0(supports-color@7.2.0))
      "@eslint-community/regexpp": 4.12.2
-      "@eslint/eslintrc": 2.1.4
+      "@eslint/eslintrc": 2.1.4(supports-color@7.2.0)
      "@eslint/js": 8.57.0
-      "@humanwhocodes/config-array": 0.11.14
+      "@humanwhocodes/config-array": 0.11.14(supports-color@7.2.0)
      "@humanwhocodes/module-importer": 1.0.1
      "@nodelib/fs.walk": 1.2.8
      "@ungap/structured-clone": 1.3.3
      ajv: 6.15.0
      chalk: 4.1.2
      cross-spawn: 7.0.6
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      doctrine: 3.0.0
      escape-string-regexp: 4.0.0
      eslint-scope: 7.2.2
@@ -5019,7 +5037,9 @@ snapshots:

  flatted@3.4.2: {}

-  follow-redirects@1.16.0: {}
+  follow-redirects@1.16.0(debug@4.4.3(supports-color@7.2.0)):
+    optionalDependencies:
+      debug: 4.4.3(supports-color@7.2.0)

  form-data@4.0.6:
    dependencies:
@@ -5115,24 +5135,24 @@ snapshots:

  html-escaper@2.0.2: {}

-  http-proxy-agent@7.0.2:
+  http-proxy-agent@7.0.2(supports-color@7.2.0):
    dependencies:
-      agent-base: 7.1.0
-      debug: 4.4.3
+      agent-base: 7.1.0(supports-color@7.2.0)
+      debug: 4.4.3(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

-  https-proxy-agent@5.0.1:
+  https-proxy-agent@5.0.1(supports-color@7.2.0):
    dependencies:
-      agent-base: 6.0.0
-      debug: 4.4.3
+      agent-base: 6.0.0(supports-color@7.2.0)
+      debug: 4.4.3(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

-  https-proxy-agent@7.0.4:
+  https-proxy-agent@7.0.4(supports-color@7.2.0):
    dependencies:
-      agent-base: 7.0.2
-      debug: 4.4.3
+      agent-base: 7.0.2(supports-color@7.2.0)
+      debug: 4.4.3(supports-color@7.2.0)
    transitivePeerDependencies:
      - supports-color

@@ -5186,10 +5206,10 @@ snapshots:
      make-dir: 4.0.0
      supports-color: 7.2.0

-  istanbul-lib-source-maps@5.0.6:
+  istanbul-lib-source-maps@5.0.6(supports-color@7.2.0):
    dependencies:
      "@jridgewell/trace-mapping": 0.3.31
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      istanbul-lib-coverage: 3.2.2
    transitivePeerDependencies:
      - supports-color
@@ -5209,15 +5229,15 @@ snapshots:
    dependencies:
      argparse: 2.0.1

-  jsdom@24.1.0:
+  jsdom@24.1.0(supports-color@7.2.0):
    dependencies:
      cssstyle: 4.0.1
      data-urls: 5.0.0
      decimal.js: 10.6.0
      form-data: 4.0.6
      html-encoding-sniffer: 4.0.0
-      http-proxy-agent: 7.0.2
-      https-proxy-agent: 7.0.4
+      http-proxy-agent: 7.0.2(supports-color@7.2.0)
+      https-proxy-agent: 7.0.4(supports-color@7.2.0)
      is-potential-custom-element-name: 1.0.1
      nwsapi: 2.2.24
      parse5: 7.1.2
@@ -5331,6 +5351,8 @@ snapshots:
      pkg-types: 1.3.1
      ufo: 1.6.4

+  mp4box@2.4.1: {}
+
  mrmime@2.0.1: {}

  ms@2.1.3: {}
@@ -5611,7 +5633,7 @@ snapshots:
      react: 18.3.1
      react-dom: 18.3.1(react@18.3.1)

-  rc-picker@4.11.3(dayjs@1.11.21)(react-dom@18.3.1(react@18.3.1))(react@18.3.1):
+  rc-picker@4.11.3(dayjs@1.11.23)(react-dom@18.3.1(react@18.3.1))(react@18.3.1):
    dependencies:
      "@babel/runtime": 7.29.7
      "@rc-component/trigger": 2.3.1(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
@@ -5622,7 +5644,7 @@ snapshots:
      react: 18.3.1
      react-dom: 18.3.1(react@18.3.1)
    optionalDependencies:
-      dayjs: 1.11.21
+      dayjs: 1.11.23

  rc-progress@4.0.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1):
    dependencies:
@@ -6008,10 +6030,10 @@ snapshots:
    dependencies:
      react: 18.3.1

-  vite-node@1.6.0(@types/node@20.19.43):
+  vite-node@1.6.0(@types/node@20.19.43)(supports-color@7.2.0):
    dependencies:
      cac: 6.7.14
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      pathe: 1.1.2
      picocolors: 1.1.1
      vite: 5.3.1(@types/node@20.19.43)
@@ -6034,7 +6056,7 @@ snapshots:
      "@types/node": 20.19.43
      fsevents: 2.3.3

-  vitest@1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0):
+  vitest@1.6.0(@types/node@20.19.43)(@vitest/ui@1.6.0)(jsdom@24.1.0(supports-color@7.2.0))(supports-color@7.2.0):
    dependencies:
      "@vitest/expect": 1.6.0
      "@vitest/runner": 1.6.0
@@ -6043,7 +6065,7 @@ snapshots:
      "@vitest/utils": 1.6.0
      acorn-walk: 8.3.5
      chai: 4.3.10
-      debug: 4.4.3
+      debug: 4.4.3(supports-color@7.2.0)
      execa: 8.0.1
      local-pkg: 0.5.0
      magic-string: 0.30.5
@@ -6054,12 +6076,12 @@ snapshots:
      tinybench: 2.5.1
      tinypool: 0.8.3
      vite: 5.3.1(@types/node@20.19.43)
-      vite-node: 1.6.0(@types/node@20.19.43)
+      vite-node: 1.6.0(@types/node@20.19.43)(supports-color@7.2.0)
      why-is-node-running: 2.3.0
    optionalDependencies:
      "@types/node": 20.19.43
      "@vitest/ui": 1.6.0(vitest@1.6.0)
-      jsdom: 24.1.0
+      jsdom: 24.1.0(supports-color@7.2.0)
    transitivePeerDependencies:
      - less
      - lightningcss
@@ -0,0 +1,391 @@
+/* ============================================================
+   标题模板系统 v3（按 sketch 重构）
+   - 大卡片网格（图片背景 + 透明 Canvas 叠字 + 始终可见操作按钮）
+   - 编辑器弹窗（左竖屏预览 + 右参数 Tab）
+   ============================================================ */
+
+/* ── 面板容器（模板模式） ── */
+.ttv3-panel {
+  display: flex;
+  flex-direction: column;
+  gap: 14px;
+}
+.ttv3-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+.ttv3-title {
+  font-size: 15px;
+  font-weight: 600;
+  color: var(--text-primary, #1f2937);
+}
+.ttv3-new-btn.ant-btn {
+  background: linear-gradient(135deg, #6c5ce7, #a29bfe);
+  border: none;
+  border-radius: 20px;
+  font-size: 12px;
+  height: 28px;
+  padding: 0 14px;
+  font-weight: 500;
+  box-shadow: 0 2px 8px rgba(108, 92, 231, 0.25);
+}
+.ttv3-new-btn.ant-btn:hover {
+  background: linear-gradient(135deg, #5b4cdb, #8c83f5) !important;
+  color: #fff !important;
+}
+.ttv3-section-label {
+  font-size: 12px;
+  color: #888;
+  font-weight: 500;
+  margin-bottom: 8px;
+}
+.ttv3-section {
+  margin-bottom: 6px;
+}
+
+/* ── 空状态 ── */
+.ttv3-empty {
+  background: #f8f8fc;
+  border-radius: 12px;
+  padding: 28px 16px;
+  text-align: center;
+  color: #aaa;
+}
+.ttv3-empty-icon {
+  font-size: 28px;
+  margin-bottom: 6px;
+}
+.ttv3-empty-text {
+  font-size: 12px;
+}
+
+/* ── 卡片网格：minmax(180px,1fr) 自适应 ── */
+.ttv3-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
+  gap: 12px;
+}
+
+/* ── 卡片：3:4 竖版，圆角 14px ── */
+.ttv3-card {
+  background: #fff;
+  border-radius: 14px;
+  border: 3px solid #e8e8ed;
+  cursor: pointer;
+  transition: all 0.15s ease;
+  overflow: hidden;
+  padding: 0;
+  font-family: inherit;
+  text-align: left;
+}
+.ttv3-card:hover {
+  border-color: #c5c0f0;
+  transform: translateY(-2px);
+  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
+}
+.ttv3-card.selected {
+  border-color: #6c5ce7;
+  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.25);
+}
+
+/* ── 卡片预览区（3:4） ── */
+.ttv3-preview {
+  width: 100%;
+  aspect-ratio: 3/4;
+  position: relative;
+  overflow: hidden;
+  border-radius: 11px 11px 0 0;
+}
+.ttv3-bg {
+  position: absolute;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  display: block;
+}
+/* 暗色渐变遮罩：顶部15%半透明黑 + 中部透明 + 底部45%黑 */
+.ttv3-vignette {
+  position: absolute;
+  inset: 0;
+  background: linear-gradient(
+    180deg,
+    rgba(0, 0, 0, 0.45) 0%,
+    rgba(0, 0, 0, 0.15) 15%,
+    transparent 30%,
+    transparent 55%,
+    rgba(0, 0, 0, 0.6) 100%
+  );
+  z-index: 1;
+  pointer-events: none;
+}
+/* 透明 Canvas 标题填充整个预览区 */
+.ttv3-preview .tt-fill-canvas-wrap {
+  position: absolute;
+  inset: 0;
+  z-index: 2;
+}
+.ttv3-preview .tt-fill-canvas-wrap canvas {
+  width: 100% !important;
+  height: 100% !important;
+  border-radius: 0;
+  display: block;
+}
+
+/* ── 左上角角标（系统/我的） ── */
+.ttv3-badge {
+  position: absolute;
+  top: 8px;
+  left: 8px;
+  font-size: 10px;
+  padding: 2px 8px;
+  border-radius: 8px;
+  font-weight: 500;
+  color: #fff;
+  z-index: 3;
+  backdrop-filter: blur(4px);
+}
+.ttv3-badge--sys {
+  background: rgba(108, 92, 231, 0.88);
+}
+.ttv3-badge--mine {
+  background: rgba(0, 184, 148, 0.88);
+}
+
+/* ── 右上角勾选圆圈 ── */
+.ttv3-check {
+  position: absolute;
+  top: 8px;
+  right: 8px;
+  width: 24px;
+  height: 24px;
+  border-radius: 50%;
+  background: rgba(0, 0, 0, 0.3);
+  border: 2px solid rgba(255, 255, 255, 0.7);
+  z-index: 3;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 12px;
+  color: transparent;
+  transition: all 0.15s;
+}
+.ttv3-check.on {
+  background: #6c5ce7;
+  border-color: #fff;
+  color: #fff;
+}
+
+/* ── 卡片底栏（名称 + 操作按钮） ── */
+.ttv3-footer {
+  padding: 10px 10px 12px;
+}
+.ttv3-name-row {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  margin-bottom: 8px;
+  font-size: 13px;
+  font-weight: 500;
+  white-space: nowrap;
+  overflow: hidden;
+  color: #1f2937;
+}
+.ttv3-emoji {
+  font-size: 14px;
+  flex-shrink: 0;
+}
+.ttv3-name {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  flex: 1;
+  min-width: 0;
+}
+.ttv3-tag {
+  font-size: 10px;
+  padding: 1px 6px;
+  border-radius: 6px;
+  font-weight: 500;
+  flex-shrink: 0;
+}
+.ttv3-tag--sys {
+  background: #f0ecff;
+  color: #6c5ce7;
+}
+.ttv3-tag--mine {
+  background: #e6f9f4;
+  color: #00b894;
+}
+
+/* ── 操作按钮：始终可见，等宽排列 ── */
+.ttv3-actions {
+  display: flex;
+  gap: 5px;
+}
+.ttv3-act {
+  flex: 1;
+  padding: 5px 0;
+  border: 1px solid #e8e8ed;
+  background: #fff;
+  border-radius: 7px;
+  font-size: 11px;
+  cursor: pointer;
+  color: #666;
+  font-weight: 500;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 3px;
+  transition: all 0.15s;
+  font-family: inherit;
+}
+.ttv3-act:hover:not(:disabled) {
+  background: #f5f5fa;
+  border-color: #d5d3e8;
+}
+.ttv3-act--primary {
+  background: #6c5ce7;
+  color: #fff;
+  border-color: #6c5ce7;
+}
+.ttv3-act--primary:hover:not(:disabled) {
+  background: #5b4cdb;
+  border-color: #5b4cdb;
+}
+.ttv3-act--danger {
+  color: #e74c3c;
+}
+.ttv3-act--danger:hover:not(:disabled) {
+  background: #fef2f2;
+}
+.ttv3-act:disabled {
+  opacity: 0.35;
+  cursor: not-allowed;
+}
+
+/* ── FillPreview 公共容器 ── */
+.tt-fill-canvas-wrap {
+  position: relative;
+}
+
+/* ── params-only（编辑器右侧）去掉多余 margin ── */
+.ttv3-params-only {
+  padding: 0;
+}
+.ttv3-params-only .ant-tabs {
+  margin: 0;
+}
+
+/* ============================================================
+   编辑器 Modal（v3）
+   ============================================================ */
+.ttv3-modal .ant-modal-content {
+  border-radius: 16px;
+  overflow: hidden;
+  padding: 0;
+}
+.ttv3-modal .ant-modal-header {
+  padding: 16px 20px;
+  margin: 0;
+  border-bottom: 1px solid #f0f0f0;
+}
+.ttv3-modal .ant-modal-body {
+  padding: 0;
+  max-height: 75vh;
+}
+.ttv3-modal .ant-modal-footer {
+  padding: 14px 20px;
+  margin: 0;
+  border-top: 1px solid #f0f0f0;
+}
+
+/* 编辑器两栏布局 */
+.ttv3-editor {
+  display: flex;
+  min-height: 500px;
+}
+.ttv3-editor-left {
+  width: 300px;
+  padding: 20px;
+  background: #f8f8fc;
+  flex-shrink: 0;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 12px;
+  border-right: 1px solid #f0f0f0;
+}
+.ttv3-editor-canvas {
+  width: 200px;
+  aspect-ratio: 9/16;
+  border-radius: 12px;
+  overflow: hidden;
+  position: relative;
+  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
+  flex-shrink: 0;
+}
+.ttv3-editor-bg {
+  position: absolute;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+.ttv3-editor-canvas-inner {
+  position: absolute;
+  inset: 0;
+  z-index: 2;
+}
+.ttv3-editor-canvas-inner canvas {
+  width: 100% !important;
+  height: 100% !important;
+  border-radius: 0;
+  display: block;
+}
+.ttv3-editor-form {
+  width: 100%;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+.ttv3-form-row {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+}
+.ttv3-form-row label {
+  font-size: 12px;
+  font-weight: 600;
+  color: #333;
+  white-space: nowrap;
+  min-width: 44px;
+}
+.ttv3-form-row--grow {
+  flex: 1;
+}
+.ttv3-form-row--grow .ant-input {
+  flex: 1;
+}
+
+.ttv3-editor-right {
+  flex: 1;
+  padding: 16px 20px;
+  overflow-y: auto;
+  min-width: 0;
+}
+
+/* 侧栏较窄时（380px 侧栏）：强制 2 列，卡片稍微紧凑 */
+@media (max-width: 540px) {
+  .ttv3-grid {
+    grid-template-columns: repeat(2, 1fr);
+    gap: 10px;
+  }
+  .ttv3-act {
+    font-size: 10px;
+    padding: 4px 0;
+  }
+  .ttv3-act .anticon {
+    display: none;
+  }
+}
@@ -0,0 +1,174 @@
+/**
+ * 标题模板编辑器（v3 重构）
+ *
+ * - Modal 弹窗 860px 宽
+ * - 左侧：300px 竖屏预览区（图片背景+暗色渐变遮罩+透明 Canvas 叠字）+ 模板名称输入框
+ * - 右侧：参数 Tab 面板（基础/描边/阴影/背景/排版），复用 TitleStylePanel 的 paramsOnly 模式
+ * - 底部：取消 / 保存模板 按钮
+ * - 内置模板编辑时保存会创建副本（带"副本"逻辑由 handleSave 处理）
+ */
+import React, { useEffect, useMemo, useState } from "react"
+import { Modal, Button, Input, message } from "antd"
+import TitleStylePanel from "../../pages/generate/components/title/TitleStylePanel"
+import TitleMiniPreview from "../../pages/generate/components/title/TitleMiniPreview"
+import { POSITION_OPTIONS } from "../../pages/generate/constants"
+import { FONT_OPTIONS } from "./constants"
+import type { TitleSettings } from "../../pages/generate/types"
+import { DEFAULT_TITLE_SETTINGS_FULL } from "../../pages/generate/types"
+import { titleStyleConfigToCamel, camelToTitleStyleConfig } from "./utils"
+import type { TitleTemplate } from "./template-types"
+import type { TitleStyleConfig } from "./types"
+
+interface Props {
+  open: boolean
+  template: TitleTemplate
+  onClose: () => void
+  /** 用户点击保存：将编辑结果回调给父组件（父组件统一做 CRUD，避免双 hook 实例不同步） */
+  onSave: (data: { name: string; emoji: string; style: Partial<TitleStyleConfig> }) => void
+}
+
+/** 编辑器预览用的背景图（复用卡片池第一张） */
+const EDITOR_BG = "/title-templates/portrait1.jpg"
+
+const TitleTemplateEditor: React.FC<Props> = ({ open, template, onClose, onSave }) => {
+  const [settings, setSettings] = useState<TitleSettings>(() => ({
+    ...DEFAULT_TITLE_SETTINGS_FULL,
+    ...titleStyleConfigToCamel(template.style || {}),
+    title: "预览标题文字",
+  }))
+  const [formName, setFormName] = useState(template.name || "")
+  const [formEmoji, setFormEmoji] = useState(template.emoji || "✨")
+  const [saving, setSaving] = useState(false)
+
+  useEffect(() => {
+    if (open) {
+      setSettings({
+        ...DEFAULT_TITLE_SETTINGS_FULL,
+        ...titleStyleConfigToCamel(template.style || {}),
+        title: "预览标题文字",
+      })
+      setFormName(template.name || "")
+      setFormEmoji(template.emoji || "✨")
+    }
+  }, [open, template])
+
+  const upd = (patch: Partial<TitleSettings>) => setSettings((s) => ({ ...s, ...patch }))
+
+  const handleSave = () => {
+    const name = formName.trim()
+    if (!name) {
+      message.warning("请填写模板名称")
+      return
+    }
+    setSaving(true)
+    try {
+      const snake = camelToTitleStyleConfig(settings)
+      onSave({ name, emoji: formEmoji, style: snake })
+    } finally {
+      setSaving(false)
+    }
+  }
+
+  // 编辑器内的预览用 settings：字号适配竖屏
+  const previewSettings = useMemo<TitleSettings>(() => {
+    // 竖屏宽度 200px，按比例缩放字号，让预览看起来协调
+    return { ...settings, size: Math.round(settings.size * 0.55) }
+  }, [settings])
+
+  return (
+    <Modal
+      title={
+        !template.id
+          ? "新建模板"
+          : template.isBuiltin
+            ? `基于「${template.name}」创建模板`
+            : `编辑模板：${template.name}`
+      }
+      open={open}
+      onCancel={onClose}
+      width={860}
+      footer={
+        <div style={{ display: "flex", gap: 10, justifyContent: "flex-end" }}>
+          <Button onClick={onClose}>取消</Button>
+          <Button type="primary" loading={saving} onClick={handleSave}>
+            保存模板
+          </Button>
+        </div>
+      }
+      destroyOnClose
+      className="ttv3-modal"
+      styles={{ body: { padding: 0 } }}
+    >
+      <div className="ttv3-editor">
+        {/* 左侧：竖屏预览 + 名称 */}
+        <div className="ttv3-editor-left">
+          <div className="ttv3-editor-canvas">
+            <img className="ttv3-editor-bg" src={EDITOR_BG} alt="" />
+            <div className="ttv3-vignette" />
+            <div className="ttv3-editor-canvas-inner">
+              <TitleMiniPreview
+                settings={previewSettings}
+                width={200}
+                sampleText="预览标题文字"
+                transparent
+                portrait
+              />
+            </div>
+          </div>
+          <div className="ttv3-editor-form">
+            <div className="ttv3-form-row">
+              <label>图标</label>
+              <Input
+                value={formEmoji}
+                maxLength={2}
+                style={{ textAlign: "center", width: 64 }}
+                onChange={(e) => setFormEmoji(e.target.value)}
+              />
+            </div>
+            <div className="ttv3-form-row ttv3-form-row--grow">
+              <label>
+                模板名称<span style={{ color: "#ef4444" }}>*</span>
+              </label>
+              <Input
+                placeholder="给模板起个名字"
+                value={formName}
+                maxLength={20}
+                onChange={(e) => setFormName(e.target.value)}
+              />
+            </div>
+          </div>
+        </div>
+        {/* 右侧：参数 Tab */}
+        <div className="ttv3-editor-right">
+          <TitleStylePanel
+            settings={settings}
+            onUpdatePosition={(p) => upd({ position: p, posX: null, posY: null })}
+            onUpdateFont={(f) => upd({ font: f })}
+            onUpdateSize={(v) => upd({ size: v })}
+            onToggleBold={() => upd({ bold: !settings.bold })}
+            onToggleItalic={() => upd({ italic: !settings.italic })}
+            onToggleStroke={() =>
+              upd({
+                stroke: !settings.stroke,
+                strokeWidth:
+                  !settings.stroke && (settings.strokeWidth ?? 0) < 2 ? 4 : settings.strokeWidth,
+              })
+            }
+            onToggleShadow={() => upd({ shadow: !settings.shadow })}
+            onApplyPreset={() => {
+              /* 编辑器内不使用系统预设快捷键 */
+            }}
+            onUpdateStyle={(patch) => upd(patch)}
+            activePreset={null}
+            titlePresets={[]}
+            POSITION_OPTIONS={POSITION_OPTIONS}
+            FONT_OPTIONS={FONT_OPTIONS}
+            paramsOnly
+          />
+        </div>
+      </div>
+    </Modal>
+  )
+}
+
+export default TitleTemplateEditor
@@ -127,6 +127,7 @@ export interface TitlePreset {
 }

 const BASE: Partial<TitleStyleConfig> = {
+  position: "bottom",
  line_overrides: [],
  cover_title_config: null,
 }
@@ -0,0 +1,28 @@
+/**
+ * 标题模板系统类型（#2003）
+ *
+ * 设计：
+ * - 内置系统模板（从 TITLE_PRESETS 自动派生，不可编辑/删除，可"复制为我的"）
+ * - 用户自定义模板（保存在 localStorage，可编辑/复制/导出/删除）
+ * - 模板存完整 TitleStyleConfig（snake_case），与后端契约一致
+ */
+import type { TitleStyleConfig } from "./types"
+
+export interface TitleTemplate {
+  /** 唯一 ID：系统模板 `sys:<presetKey>`，用户模板 `usr:<uuid>` */
+  id: string
+  /** 模板名称（必填，保存时校验） */
+  name: string
+  /** 模板描述（可选） */
+  description?: string
+  /** 是否为系统内置（不可删除/编辑源） */
+  isBuiltin: boolean
+  /** emoji（展示用，可选） */
+  emoji?: string
+  /** 创建时间（ISO 字符串，系统模板=固定值） */
+  createdAt: string
+  /** 更新时间 */
+  updatedAt: string
+  /** 完整样式配置（snake_case，与后端 title_config 对齐） */
+  style: Partial<TitleStyleConfig>
+}
@@ -0,0 +1,213 @@
+/**
+ * 标题模板 CRUD Hook（#2003）
+ *
+ * - 内存态 + localStorage 持久化
+ * - 系统模板（来自 TITLE_PRESETS）始终前置、不可删除/编辑源
+ * - 用户模板 CRUD：新增/复制/更新/删除/导出/导入
+ */
+import { useCallback, useEffect, useMemo, useState } from "react"
+import { TITLE_PRESETS } from "./constants"
+import type { TitleStyleConfig } from "./types"
+import type { TitleTemplate } from "./template-types"
+
+const STORAGE_KEY = "xiaoxia.title.templates.v1"
+
+function uid(): string {
+  return "usr:" + Math.random().toString(36).slice(2, 10) + Date.now().toString(36)
+}
+
+/** 把 TITLE_PRESETS 转为内置 TitleTemplate 列表 */
+function buildBuiltinTemplates(): TitleTemplate[] {
+  const now = "2026-09-22T00:00:00+08:00"
+  return TITLE_PRESETS.map((p) => ({
+    id: `sys:${p.key}`,
+    name: p.label,
+    description: "系统内置模板",
+    isBuiltin: true,
+    emoji: p.emoji,
+    createdAt: now,
+    updatedAt: now,
+    style: { ...p.style },
+  }))
+}
+
+function loadUserTemplates(): TitleTemplate[] {
+  if (typeof window === "undefined") return []
+  try {
+    const raw = window.localStorage.getItem(STORAGE_KEY)
+    if (!raw) return []
+    const parsed = JSON.parse(raw)
+    if (!Array.isArray(parsed)) return []
+    return parsed.filter((t) => t && !t.isBuiltin && t.id.startsWith("usr:"))
+  } catch {
+    return []
+  }
+}
+
+function saveUserTemplates(list: TitleTemplate[]) {
+  if (typeof window === "undefined") return
+  try {
+    window.localStorage.setItem(STORAGE_KEY, JSON.stringify(list))
+  } catch {
+    /* ignore quota */
+  }
+}
+
+export interface UseTitleTemplatesResult {
+  templates: TitleTemplate[]
+  builtin: TitleTemplate[]
+  custom: TitleTemplate[]
+  /** 新建自定义模板：传入样式（snake_case），返回新建模板 id */
+  createTemplate: (input: {
+    name: string
+    description?: string
+    emoji?: string
+    style: Partial<TitleStyleConfig>
+  }) => TitleTemplate
+  /** 复制模板（内置模板也可复制，自动加"副本"后缀） */
+  duplicateTemplate: (id: string) => TitleTemplate | null
+  /** 更新自定义模板（系统模板不可改） */
+  updateTemplate: (id: string, patch: Partial<Omit<TitleTemplate, "id" | "isBuiltin">>) => void
+  /** 删除自定义模板 */
+  deleteTemplate: (id: string) => void
+  /** 导出单个模板为 JSON 字符串 */
+  exportTemplate: (id: string) => string | null
+  /** 导入 JSON 字符串作为新模板，返回新建模板 */
+  importTemplate: (json: string) => TitleTemplate | null
+  /** 根据 id 查询模板 */
+  getById: (id: string) => TitleTemplate | undefined
+}
+
+export function useTitleTemplates(): UseTitleTemplatesResult {
+  const [custom, setCustom] = useState<TitleTemplate[]>(() => loadUserTemplates())
+
+  // 跨 tab 同步
+  useEffect(() => {
+    const onStorage = (e: StorageEvent) => {
+      if (e.key === STORAGE_KEY) setCustom(loadUserTemplates())
+    }
+    window.addEventListener("storage", onStorage)
+    return () => window.removeEventListener("storage", onStorage)
+  }, [])
+
+  const builtin = useMemo(() => buildBuiltinTemplates(), [])
+  const templates = useMemo(() => [...builtin, ...custom], [builtin, custom])
+
+  const persist = useCallback((next: TitleTemplate[]) => {
+    setCustom(next)
+    saveUserTemplates(next)
+  }, [])
+
+  const getById = useCallback((id: string) => templates.find((t) => t.id === id), [templates])
+
+  const createTemplate = useCallback<UseTitleTemplatesResult["createTemplate"]>(
+    ({ name, description, emoji, style }) => {
+      const now = new Date().toISOString()
+      const t: TitleTemplate = {
+        id: uid(),
+        name: name.trim() || "未命名模板",
+        description: description?.trim() || undefined,
+        emoji: emoji || "✨",
+        isBuiltin: false,
+        createdAt: now,
+        updatedAt: now,
+        style: { ...style },
+      }
+      persist([...custom, t])
+      return t
+    },
+    [custom, persist],
+  )
+
+  const duplicateTemplate = useCallback<UseTitleTemplatesResult["duplicateTemplate"]>(
+    (id) => {
+      const src = templates.find((t) => t.id === id)
+      if (!src) return null
+      const now = new Date().toISOString()
+      const t: TitleTemplate = {
+        id: uid(),
+        name: `${src.name} 副本`,
+        description: src.description,
+        emoji: src.emoji,
+        isBuiltin: false,
+        createdAt: now,
+        updatedAt: now,
+        style: { ...src.style },
+      }
+      persist([...custom, t])
+      return t
+    },
+    [templates, custom, persist],
+  )
+
+  const updateTemplate = useCallback<UseTitleTemplatesResult["updateTemplate"]>(
+    (id, patch) => {
+      if (id.startsWith("sys:")) return
+      const next = custom.map((t) =>
+        t.id === id
+          ? { ...t, ...patch, id: t.id, isBuiltin: false, updatedAt: new Date().toISOString() }
+          : t,
+      )
+      persist(next)
+    },
+    [custom, persist],
+  )
+
+  const deleteTemplate = useCallback<UseTitleTemplatesResult["deleteTemplate"]>(
+    (id) => {
+      if (id.startsWith("sys:")) return
+      persist(custom.filter((t) => t.id !== id))
+    },
+    [custom, persist],
+  )
+
+  const exportTemplate = useCallback<UseTitleTemplatesResult["exportTemplate"]>(
+    (id) => {
+      const t = templates.find((x) => x.id === id)
+      if (!t) return null
+      return JSON.stringify(
+        {
+          name: t.name,
+          description: t.description,
+          emoji: t.emoji,
+          style: t.style,
+          exportedAt: new Date().toISOString(),
+        },
+        null,
+        2,
+      )
+    },
+    [templates],
+  )
+
+  const importTemplate = useCallback<UseTitleTemplatesResult["importTemplate"]>(
+    (json) => {
+      try {
+        const data = JSON.parse(json)
+        if (!data || typeof data !== "object" || !data.style) return null
+        return createTemplate({
+          name: data.name || "导入模板",
+          description: data.description,
+          emoji: data.emoji || "✨",
+          style: data.style,
+        })
+      } catch {
+        return null
+      }
+    },
+    [createTemplate],
+  )
+
+  return {
+    templates,
+    builtin,
+    custom,
+    createTemplate,
+    duplicateTemplate,
+    updateTemplate,
+    deleteTemplate,
+    exportTemplate,
+    importTemplate,
+    getById,
+  }
+}
@@ -0,0 +1,125 @@
+/**
+ * 标题样式工具（#2001 / 模板系统 #2003）
+ *
+ * - snake_case TitleStyleConfig ↔ camelCase TitleSettings 互转
+ * - preset 归一化预览（修复"标题"两字大小不一）
+ */
+import type { TitleStyleConfig } from "./types"
+import type { TitleSettings } from "../../pages/generate/types"
+import { TITLE_PRESETS } from "./constants"
+import { DEFAULT_TITLE_SETTINGS_FULL } from "../../pages/generate/types"
+import type { TitleTemplate } from "./template-types"
+
+/** snake_case TitleStyleConfig → camelCase TitleSettings（仅覆盖已知字段） */
+export function titleStyleConfigToCamel(s: Partial<TitleStyleConfig>): Partial<TitleSettings> {
+  const out: Partial<TitleSettings> = {}
+  if (s.font != null) out.font = s.font
+  if (s.size != null) out.size = s.size
+  if (s.color != null) out.color = s.color
+  if (s.bold != null) out.bold = s.bold
+  if (s.italic != null) out.italic = s.italic
+  if (s.position != null) out.position = s.position as TitleSettings["position"]
+  if (s.pos_x != null) out.posX = s.pos_x
+  if (s.pos_y != null) out.posY = s.pos_y
+  if (s.line_height != null) out.lineHeight = s.line_height
+  if (s.margin_top != null) out.marginTop = s.margin_top
+  if (s.max_chars_per_line != null) out.maxCharsPerLine = s.max_chars_per_line
+  if (s.stroke != null) out.stroke = s.stroke
+  if (s.stroke_width != null) out.strokeWidth = s.stroke_width
+  if (s.stroke_color != null) out.strokeColor = s.stroke_color
+  if (s.shadow != null) out.shadow = s.shadow
+  if (s.shadow_offset_x != null) out.shadowOffsetX = s.shadow_offset_x
+  if (s.shadow_offset_y != null) out.shadowOffsetY = s.shadow_offset_y
+  if (s.shadow_blur != null) out.shadowBlur = s.shadow_blur
+  if (s.shadow_color != null) out.shadowColor = s.shadow_color
+  if (s.bg_enabled != null) out.bgEnabled = s.bg_enabled
+  if (s.bg_color != null) out.bgColor = s.bg_color
+  if (s.bg_padding != null) out.bgPadding = s.bg_padding
+  if (s.bg_radius != null) out.bgRadius = s.bg_radius
+  if (s.line_overrides != null) out.lineOverrides = s.line_overrides
+  return out
+}
+
+/** camelCase TitleSettings patch → snake_case TitleStyleConfig patch */
+export function camelToTitleStyleConfig(p: Partial<TitleSettings>): Partial<TitleStyleConfig> {
+  const out: Partial<TitleStyleConfig> = {}
+  if (p.font != null) out.font = p.font
+  if (p.size != null) out.size = p.size
+  if (p.color != null) out.color = p.color
+  if (p.bold != null) out.bold = p.bold
+  if (p.italic != null) out.italic = p.italic
+  if (p.position != null) out.position = p.position as TitleStyleConfig["position"]
+  if (p.posX != null) out.pos_x = p.posX
+  if (p.posY != null) out.pos_y = p.posY
+  if (p.lineHeight != null) out.line_height = p.lineHeight
+  if (p.marginTop != null) out.margin_top = p.marginTop
+  if (p.maxCharsPerLine != null) out.max_chars_per_line = p.maxCharsPerLine
+  if (p.stroke != null) out.stroke = p.stroke
+  if (p.strokeWidth != null) out.stroke_width = p.strokeWidth
+  if (p.strokeColor != null) out.stroke_color = p.strokeColor
+  if (p.shadow != null) out.shadow = p.shadow
+  if (p.shadowOffsetX != null) out.shadow_offset_x = p.shadowOffsetX
+  if (p.shadowOffsetY != null) out.shadow_offset_y = p.shadowOffsetY
+  if (p.shadowBlur != null) out.shadow_blur = p.shadowBlur
+  if (p.shadowColor != null) out.shadow_color = p.shadowColor
+  if (p.bgEnabled != null) out.bg_enabled = p.bgEnabled
+  if (p.bgColor != null) out.bg_color = p.bgColor
+  if (p.bgPadding != null) out.bg_padding = p.bgPadding
+  if (p.bgRadius != null) out.bg_radius = p.bgRadius
+  if (p.lineOverrides != null) out.line_overrides = p.lineOverrides
+  return out
+}
+
+/**
+ * 把 preset style（snake_case）归一化为固定字号的 TitleSettings，
+ * 用于"预设卡片"缩略预览——所有卡片视觉上"标题"两字大小一致，便于辨识。
+ * 描边/阴影/背景padding 按 fixedSize / 原始 size 比例缩放，避免粗描边爆框。
+ */
+export function buildPresetPreviewSettings(
+  base: TitleSettings,
+  presetKey: string,
+  fixedSize = 56,
+): TitleSettings {
+  const preset = TITLE_PRESETS.find((p) => p.key === presetKey)
+  if (!preset) return base
+  const origSize = preset.style.size ?? fixedSize
+  const ratio = fixedSize / origSize
+  const scale = (v: number | undefined, fallback: number): number =>
+    v != null ? Math.round(v * ratio) : fallback
+  return {
+    ...base,
+    ...titleStyleConfigToCamel(preset.style),
+    size: fixedSize,
+    strokeWidth: scale(preset.style.stroke_width, base.strokeWidth) ?? base.strokeWidth,
+    shadowOffsetX: scale(preset.style.shadow_offset_x, base.shadowOffsetX) ?? base.shadowOffsetX,
+    shadowOffsetY: scale(preset.style.shadow_offset_y, base.shadowOffsetY) ?? base.shadowOffsetY,
+    shadowBlur: scale(preset.style.shadow_blur, base.shadowBlur) ?? base.shadowBlur,
+    bgPadding: scale(preset.style.bg_padding, base.bgPadding) ?? base.bgPadding,
+    lineOverrides: [],
+  }
+}
+
+/**
+ * 把 TitleTemplate 渲染为完整 TitleSettings（带默认值），用于卡片预览。
+ * 与模板选择器中保持一致，抽出共用。
+ */
+export function templateToPreviewSettings(t: TitleTemplate, fixedSize = 48): TitleSettings {
+  const base: TitleSettings = {
+    ...DEFAULT_TITLE_SETTINGS_FULL,
+    ...titleStyleConfigToCamel(t.style),
+  }
+  // 预览时用固定字号保证所有卡片字大小一致；描边/阴影/padding按比例缩放
+  const origSize = t.style.size ?? base.size
+  if (origSize && origSize !== fixedSize) {
+    const ratio = fixedSize / origSize
+    base.size = fixedSize
+    if (base.strokeWidth != null)
+      base.strokeWidth = Math.max(1, Math.round(base.strokeWidth * ratio))
+    if (base.shadowOffsetX != null) base.shadowOffsetX = Math.round(base.shadowOffsetX * ratio)
+    if (base.shadowOffsetY != null) base.shadowOffsetY = Math.round(base.shadowOffsetY * ratio)
+    if (base.shadowBlur != null) base.shadowBlur = Math.round(base.shadowBlur * ratio)
+    if (base.bgPadding != null) base.bgPadding = Math.round(base.bgPadding * ratio)
+  }
+  base.lineOverrides = []
+  return base
+}
@@ -10,6 +10,8 @@
 import React, { useMemo, useState, useEffect } from "react"
 import { Input } from "antd"
 import TitleStylePanel from "@/pages/generate/components/title/TitleStylePanel"
+import type { TitleTemplate } from "@/components/title/template-types"
+
 import TitleLibraryAutoComplete from "@/pages/generate/components/title/TitleLibraryAutoComplete"
 import type { TitleOption } from "@/pages/generate/components/title/TitleLibraryAutoComplete"
 import type { TitleSettings } from "@/pages/generate/types"
@@ -29,6 +31,7 @@ interface PanelTitleConfigProps {
 const PanelTitleConfig: React.FC<PanelTitleConfigProps> = ({ titleConfig, onUpdate }) => {
  /** TitleStylePanel 内部高亮的预设 key（面板本地状态） */
  const [activePreset, setActivePreset] = useState<string | null>(null)
+  const [selectedTemplateId, setSelectedTemplateId] = useState<string | null>(null)

  /** 标题库选项（#1894：从文案库 scripts[].title 取候选） */
  const [titleOptions, setTitleOptions] = useState<TitleOption[]>([])
@@ -329,6 +332,40 @@ const PanelTitleConfig: React.FC<PanelTitleConfigProps> = ({ titleConfig, onUpda
    onUpdate(snake)
  }

+  /** 应用模板（来自内联网格 onApplyTemplate）：camelCase TitleSettings → snake_case AiAvatarTitleConfig */
+  const handleApplyTemplate = (settings: TitleSettings, tpl: TitleTemplate) => {
+    setActivePreset(null)
+    setSelectedTemplateId(tpl.id)
+    onUpdate({
+      title: titleConfig.title,
+      font: settings.font,
+      size: settings.size,
+      color: settings.color,
+      bold: settings.bold,
+      italic: settings.italic,
+      position: settings.position,
+      stroke: settings.stroke,
+      stroke_width: settings.strokeWidth,
+      stroke_color: settings.strokeColor,
+      shadow: settings.shadow,
+      shadow_offset_x: settings.shadowOffsetX,
+      shadow_offset_y: settings.shadowOffsetY,
+      shadow_blur: settings.shadowBlur,
+      shadow_color: settings.shadowColor,
+      bg_enabled: settings.bgEnabled,
+      bg_color: settings.bgColor,
+      bg_padding: settings.bgPadding,
+      bg_radius: settings.bgRadius,
+      line_height: settings.lineHeight,
+      margin_top: settings.marginTop,
+      max_chars_per_line: settings.maxCharsPerLine,
+      line_overrides: [],
+      pos_x: settings.posX ?? undefined,
+      pos_y: settings.posY ?? undefined,
+      cover_title_config: null,
+    })
+  }
+
  return (
    <div className="aa-title-config">
      {/* 主标题输入 — TextArea 多行 + 标题库选择 */}
@@ -375,6 +412,9 @@ const PanelTitleConfig: React.FC<PanelTitleConfigProps> = ({ titleConfig, onUpda
        onUpdateStyle={handleUpdateStyle}
        showCoverToggle
        previewWidth={280}
+        enableTemplates
+        selectedTemplateId={selectedTemplateId}
+        onApplyTemplate={handleApplyTemplate}
        activePreset={activePreset}
        titlePresets={
          TITLE_PRESETS as unknown as React.ComponentProps<typeof TitleStylePanel>["titlePresets"]
@@ -8,15 +8,12 @@ import React, { useMemo, useState, useEffect, useRef, useCallback } from "react"
 import { message } from "antd"
 import { useNavigate } from "react-router-dom"
 import type { VoiceClone } from "@/api/voice-clone"
-import { useQuery } from "@tanstack/react-query"
 import { useCloneProgress } from "@/hooks/useCloneProgress"
 import CloneModal from "@/components/voice/CloneModal"
 import VoiceSelectModal from "./components/VoiceSelectModal"
 import ScriptSelectModal from "./components/ScriptSelectModal"
 import TtsVoiceModal from "./components/TtsVoiceModal"
 import GenerateHeader from "./components/GenerateHeader"
-import FrontendPreviewPlayer from "./components/FrontendPreviewPlayer"
-import CanvasPreviewGrid from "./components/CanvasPreviewGrid"
 import PreviewCountModal from "./components/PreviewCountModal"
 import GenerateStepsBar from "./components/GenerateStepsBar"
 import GenerateStepContent from "./components/GenerateStepContent"
@@ -25,12 +22,8 @@ import { useGenerateFormState } from "./hooks/useGenerateFormState"
 import { useStepNavigation } from "./hooks/useStepNavigation"
 import { useGenerateVideo } from "./hooks/useGenerateVideo"

-import { usePreviewAssets } from "./hooks/usePreviewAssets"
 import { useBatchVariantPlans } from "./hooks/useBatchVariantPlans"
-import { useVariantVoicePreview } from "./hooks/useVariantVoicePreview"
 import { useTitleStyleUpdaters } from "./hooks/useStep4Title/useTitleStyleUpdaters"
-import { getAssetsByKind } from "@/api/assets"
-import { previewTts } from "@/api/tts"
 import { usePointsStore } from "@/store/pointsStore"
 import { hasEnoughPoints } from "./hooks/pointsCost"
 import { ENABLE_CREDIT_SYSTEM } from "@/config/features"
@@ -42,6 +35,9 @@ const GeneratePage: React.FC = () => {

  /* ── 表单状态 ── */
  const formState = useGenerateFormState()
+  /* ── 标题模板（#2003）当前选中模板 id ── */
+  const [selectedTitleTemplateId, setSelectedTitleTemplateId] = useState<string | null>(null)
+
  /* ── 积分状态 ── */
  const { balance, dailyUsage, rules, init: initPoints } = usePointsStore()
  useEffect(() => {
@@ -98,8 +94,6 @@ const GeneratePage: React.FC = () => {
    setPreviewTaskId,
    storedSourceEditPlanId,
    setStoredSourceEditPlanId,
-    serverClips,
-    setServerClips,
    previewCount,
    setPreviewCount,
    previewTitles,
@@ -156,62 +150,6 @@ const GeneratePage: React.FC = () => {
    onTitleSettingsChange: setTitleSettings,
  })

-  /* ── 配音素材库（TTS 试听）── */
-  const { data: voiceMaterials = [] } = useQuery({
-    queryKey: ["assets", "voice"],
-    queryFn: () => getAssetsByKind("voice", { limit: 50 }),
-  })
-
-  const [previewVoiceAudioUrl, setPreviewVoiceAudioUrl] = useState<string | null>(null)
-  const ttsAbortRef = useRef<AbortController | null>(null)
-  const variant0Title = isBatch ? previewTitles?.[0] || "" : ""
-
-  useEffect(() => {
-    if (isBatch) return
-    const voiceAsset = voiceMaterials.find((m) => m.id === selectedVoice)
-    if (voiceAsset?.file_url) {
-      setPreviewVoiceAudioUrl(voiceAsset.file_url)
-      return
-    }
-
-    const ttsTitle = titleSettings.title
-    const voiceId = selectedClonedVoice || selectedVoice
-    if (!voiceId || !ttsTitle) {
-      setPreviewVoiceAudioUrl(null)
-      return
-    }
-
-    ttsAbortRef.current?.abort()
-    const controller = new AbortController()
-    ttsAbortRef.current = controller
-    let cancelled = false
-
-    previewTts({ text: ttsTitle, voice_id: voiceId })
-      .then((res) => {
-        if (!cancelled && res.audio_url) {
-          setPreviewVoiceAudioUrl(res.audio_url)
-        }
-      })
-      .catch((err) => {
-        if (!cancelled) {
-          console.warn("[预览配音生成失败]", err)
-          setPreviewVoiceAudioUrl(null)
-        }
-      })
-
-    return () => {
-      cancelled = true
-      controller.abort()
-    }
-  }, [
-    selectedVoice,
-    selectedClonedVoice,
-    titleSettings.title,
-    variant0Title,
-    isBatch,
-    voiceMaterials,
-  ])
-
  /* ── 克隆声音 ── */
  const { addClone } = useCloneProgress()

@@ -236,30 +174,11 @@ const GeneratePage: React.FC = () => {
    [bgm],
  )

-  /* ── 加载素材详情 ── */
-  const previewAssetsEnabled = previewAssetIds.length > 0
-  const {
-    assets: previewAssets,
-    ready: previewAssetsReady,
-    ensureAssets,
-  } = usePreviewAssets(previewAssetIds, previewAssetsEnabled)
-
-  /* ── 预览就绪 ── */
-  // #1899: 不再依赖 currentTemplate，素材加载完即可预览
-  const previewReady = previewAssetsReady
-
  /* ── 批量变体真实片段（#1744） ── */
  const batchVoiceLibraryId =
    voiceMode === "clone" ? selectedClonedVoice || selectedVoice || "" : selectedVoice || ""
-  const {
-    clipsByVariant: variantClips,
-    planIdsByVariant: variantPlanIds,
-    voiceDurationsByVariant: variantVoiceDurations,
-    loading: variantClipsLoading,
-    error: variantClipsError,
-    retry: retryVariantClips,
-  } = useBatchVariantPlans({
-    enabled: isBatch && currentStep === 3 && previewAssetsReady,
+  const { planIdsByVariant: variantPlanIds } = useBatchVariantPlans({
+    enabled: isBatch && currentStep === 3,
    count: previewCount,
    templateId: selectedTemplate || "",
    assetIds: previewAssetIds,
@@ -269,39 +188,6 @@ const GeneratePage: React.FC = () => {
    voiceModePerVideo,
  })

-  /* ── 批量变体配音预览 URL ── */
-  const variantVoiceAudioUrls = useVariantVoicePreview({
-    enabled: isBatch,
-    count: previewCount,
-    perVideo: voiceModePerVideo,
-    sharedVoiceId: selectedVoice || "",
-    clonedVoiceId: selectedClonedVoice || "",
-    variantVoiceIds: voiceLibraryIds || [],
-    titles: previewTitles || [],
-  })
-
-  /* ── 变体 clips 引用素材补拉 ── */
-  const clipAssetIds = useMemo(() => {
-    if (!isBatch || !variantClips?.length) return []
-    const ids = new Set<string>()
-    variantClips.forEach((list) => list.forEach((c) => c.asset_id && ids.add(c.asset_id)))
-    return Array.from(ids)
-  }, [isBatch, variantClips])
-  useEffect(() => {
-    if (clipAssetIds.length > 0) void ensureAssets(clipAssetIds)
-  }, [clipAssetIds, ensureAssets])
-
-  /* ── 勾选变体 ── */
-  const toggleVariantSelect = useCallback(
-    (index: number) => {
-      setSelectedVariantIds((prev) => {
-        const list = prev || []
-        return list.includes(index) ? list.filter((i) => i !== index) : [...list, index].sort()
-      })
-    },
-    [setSelectedVariantIds],
-  )
-
  /* ── 视频生成核心逻辑 ── */
  const {
    generating,
@@ -481,10 +367,6 @@ const GeneratePage: React.FC = () => {
        return
      }
    }
-    if (!previewReady) {
-      message.warning("预览素材正在加载，请稍候")
-      return
-    }
    const ok = await handleGenerate()
    if (ok) {
      setCurrentStep(4)
@@ -495,7 +377,6 @@ const GeneratePage: React.FC = () => {
    previewTitles,
    titleSettings.aiAutoSelect,
    titleSettings.title,
-    previewReady,
    handleGenerate,
    setCurrentStep,
    balance,
@@ -527,10 +408,7 @@ const GeneratePage: React.FC = () => {
  const finalVideo = generatedVideos[0]

  /* ── 布局 class ── */
-  const layoutClassName = useMemo(() => {
-    if (currentStep === 3) return "xx-generate-layout step4-layout"
-    return "xx-generate-layout full-width"
-  }, [currentStep])
+  const layoutClassName = "xx-generate-layout full-width"

  /* ── 积分消耗估算（步骤3确认生成展示用） ── */
  const unitsForCost = isBatch ? Math.max(selectedVariantIds.length, 1) : 1
@@ -558,66 +436,7 @@ const GeneratePage: React.FC = () => {
      <GenerateStepsBar currentStep={currentStep} onStepClick={setCurrentStep} />

      <div className={layoutClassName}>
-        {/* ════ 步骤3：左侧预览大区域 ════ */}
-        {currentStep === 3 && (
-          <div className="xx-generate-preview-col">
-            {!isBatch ? (
-              <FrontendPreviewPlayer
-                assets={previewAssets}
-                videoRatio={videoRatio as "9:16" | "16:9"}
-                ready={previewAssets.length > 0}
-                serverClips={serverClips}
-                voiceAudioUrl={previewVoiceAudioUrl || undefined}
-                titleSettings={{
-                  title: titleSettings.title,
-                  size: titleSettings.size,
-                  font: titleSettings.font,
-                  color: titleSettings.color,
-                  position: titleSettings.position as "top" | "center" | "bottom" | "custom",
-                  bold: titleSettings.bold,
-                  italic: titleSettings.italic,
-                  stroke: titleSettings.stroke,
-                  shadow: titleSettings.shadow,
-                  posX: titleSettings.posX,
-                  posY: titleSettings.posY,
-                }}
-                onTitlePositionChange={styleUpdaters.updateTitlePosition}
-              />
-            ) : (
-              <div className="xx-form-section">
-                <div className="xx-preview-header">
-                  <h3>🎬 {previewCount} 个视频预览</h3>
-                  <span
-                    style={{
-                      fontSize: 13,
-                      color: "var(--text-secondary, #666)",
-                    }}
-                  >
-                    实时预览，勾选要生成的视频
-                  </span>
-                </div>
-                <CanvasPreviewGrid
-                  count={previewCount}
-                  assets={previewAssets}
-                  videoRatio={videoRatio as "9:16" | "16:9"}
-                  titles={previewTitles}
-                  titleSettings={titleSettings}
-                  voiceAudioUrls={variantVoiceAudioUrls}
-                  voiceDurations={variantVoiceDurations}
-                  variantClips={variantClips}
-                  clipsLoading={variantClipsLoading}
-                  clipsError={variantClipsError}
-                  onRetryClips={retryVariantClips}
-                  selectedIds={selectedVariantIds}
-                  onToggleSelect={toggleVariantSelect}
-                  selectable={!generating}
-                />
-              </div>
-            )}
-          </div>
-        )}
-
-        {/* ════ 右侧：步骤1~2 表单 / 步骤3 标题边栏 / 步骤4 确认生成进度 / 步骤5 封面 ════ */}
+        {/* ════ 步骤1~2 表单 / 步骤3 标题设置 / 步骤4 确认生成进度 / 步骤5 封面 ════ */}
        <div className="xx-generate-form">
          <GenerateStepContent
            currentStep={currentStep}
@@ -643,6 +462,12 @@ const GeneratePage: React.FC = () => {
            onUpdateStyle={styleUpdaters.updateStyle}
            activePreset={styleUpdaters.activePreset}
            titlePresets={styleUpdaters.titlePresets}
+            enableTemplates
+            selectedTemplateId={selectedTitleTemplateId}
+            onApplyTemplate={(settings, tpl) => {
+              styleUpdaters.applyTemplate(settings)
+              setSelectedTitleTemplateId(tpl.id)
+            }}
            bgm={bgm}
            bgmConfig={bgmConfig}
            coverSettings={coverSettings}
@@ -659,7 +484,6 @@ const GeneratePage: React.FC = () => {
            ttsVoiceId={ttsVoiceId}
            ttsVoiceSource={ttsVoiceSource}
            onSelectedVoiceChange={setSelectedVoice}
-            onServerClipsChange={setServerClips}
            generating={generating}
            generated={generated}
            generateError={generateError}
@@ -1,156 +0,0 @@
-/**
- * 批量前端 Canvas 实时预览网格（Issue #1677 起，#1750 对齐基线：只播放后端真实计划）
- *
- * N 个 FrontendPreviewPlayer 网格排列：
- * - 纯前端 Canvas + video 元素实时播放素材片段，不调任何后端渲染接口；
- * - #1744/#1750：片段只来自后端变体计划接口（POST /generation/variant-plans）的真实
- *   clips，与正式批量生成同源自 reselect_plan_for_variant，预览即成片；
- *   接口失败/数据不完整 → 整网格显示错误态+重试（严禁本地假数据冒充预览）；
- *   加载中 → 9:16 占位防塌陷；
- * - 各自叠加独立标题浮层（variantTitle），标题样式全局共用；
- * - 勾选框决定提交时生成哪些变体；
- * - 每个变体挂载各自配音 URL（独立模式 #1750）或共用同一条；播放互斥：
- *   点击某卡片播放时其他卡片自动暂停，同一时刻只有一路声音（#1741）。
- */
-import React, { useState } from "react"
-import type { AssetItem } from "@/api/assets"
-import type { EditPlanClip } from "@/api/template-editor"
-import { LoadingOutlined, ReloadOutlined } from "@ant-design/icons"
-import { Button } from "antd"
-import type { TitleSettings } from "../types"
-import FrontendPreviewPlayer from "./FrontendPreviewPlayer"
-
-interface CanvasPreviewGridProps {
-  count: number
-  assets: AssetItem[]
-  videoRatio: string
-  titles: string[]
-  titleSettings: TitleSettings
-  /**
-   * 各变体配音预览音频 URL（#1750：独立配音模式每变体一条；共用模式全为同一条；
-   * 元素为 null 表示该变体暂无音频（AI 音色 TTS 合成中））
-   */
-  voiceAudioUrls?: (string | null)[]
-  /**
-   * 各变体配音时长（秒）：后端返回 voice_duration 优先；未返回则为 undefined，
-   * 由 FrontendPreviewPlayer 在 audio loadedmetadata 时自测兜底。
-   * 长度=count，undefined 项表示该变体未提供后端时长。
-   */
-  voiceDurations?: (number | undefined)[]
-  /**
-   * 各变体的后端真实片段（#1744/#1750）：长度=count。
-   * 仅 clipsLoading=false 且 clipsError=false 时才会传给播放器。
-   */
-  variantClips?: EditPlanClip[][]
-  /** 是否正在向后端申请变体计划 */
-  clipsLoading?: boolean
-  /** 申请变体计划失败（端点未上线/网络错误/数据不完整）：显示错误态，严禁假数据 */
-  clipsError?: boolean
-  /** 用户点击错误态「重试」 */
-  onRetryClips?: () => void
-  /** 勾选的变体序号 */
-  selectedIds: number[]
-  onToggleSelect: (index: number) => void
-  /** 生成中禁止勾选 */
-  selectable?: boolean
-}
-
-const CanvasPreviewGrid: React.FC<CanvasPreviewGridProps> = ({
-  count,
-  assets,
-  videoRatio,
-  titles,
-  titleSettings,
-  voiceAudioUrls,
-  voiceDurations,
-  variantClips,
-  clipsLoading = false,
-  clipsError = false,
-  onRetryClips,
-  selectedIds,
-  onToggleSelect,
-  selectable = true,
-}) => {
-  // ── 播放互斥（#1741）：同一时刻只有一个卡片持有播放权（token = 变体序号，0 起，#1750） ──
-  const [activePlayToken, setActivePlayToken] = useState<number | null>(null)
-
-  // count 上限已在源头 PreviewCountModal 的数量选择（1~MAX_PREVIEW_COUNT=10）clamp，
-  // 这里完整渲染所有变体，保证每个变体都有勾选/预览入口，UI 与数据不脱节
-  return (
-    <div className="xx-canvas-grid">
-      {Array.from({ length: count }, (_, i) => {
-        const checked = selectedIds.includes(i)
-        return (
-          <div
-            key={i}
-            className={`xx-canvas-grid-card${checked ? " selected" : ""}`}
-            data-variant={i}
-          >
-            <div className="xx-canvas-grid-card-bar">
-              <label className="xx-canvas-grid-check">
-                <input
-                  type="checkbox"
-                  checked={checked}
-                  disabled={!selectable}
-                  onChange={() => onToggleSelect(i)}
-                />
-                <span>视频 {i + 1}</span>
-              </label>
-            </div>
-            {clipsError ? (
-              // ── 错误态（#1750）：9:16 占位防塌陷，不渲染任何播放器（严禁假数据） ──
-              <div className="xx-variant-clips-status" role="alert">
-                <span className="xx-variant-clips-error-text">预览加载失败，请重试</span>
-                {i === 0 && onRetryClips ? (
-                  <Button
-                    size="small"
-                    icon={<ReloadOutlined />}
-                    onClick={onRetryClips}
-                    style={{ marginTop: 12 }}
-                  >
-                    重试
-                  </Button>
-                ) : null}
-              </div>
-            ) : clipsLoading || !variantClips?.[i]?.length ? (
-              // ── 加载态：9:16 占位防塌陷 ──
-              <div className="xx-variant-clips-status" aria-label={`变体${i + 1}片段加载中`}>
-                <LoadingOutlined />
-                <span style={{ marginTop: 8 }}>独立选片中…</span>
-              </div>
-            ) : (
-              <FrontendPreviewPlayer
-                assets={assets}
-                videoRatio={videoRatio}
-                ready={assets.length > 0}
-                playToken={i}
-                serverClips={variantClips[i]}
-                variantTitle={titles[i] || ""}
-                voiceAudioUrl={voiceAudioUrls?.[i] || undefined}
-                voiceDurationHint={voiceDurations?.[i]}
-                activePlayToken={activePlayToken}
-                onPlayTokenChange={setActivePlayToken}
-                compact
-                titleSettings={{
-                  title: titles[i] || "",
-                  size: titleSettings.size,
-                  font: titleSettings.font,
-                  color: titleSettings.color,
-                  position: titleSettings.position as "top" | "center" | "bottom" | "custom",
-                  bold: titleSettings.bold,
-                  italic: titleSettings.italic,
-                  stroke: titleSettings.stroke,
-                  shadow: titleSettings.shadow,
-                  posX: titleSettings.posX,
-                  posY: titleSettings.posY,
-                }}
-              />
-            )}
-          </div>
-        )
-      })}
-    </div>
-  )
-}
-
-export default CanvasPreviewGrid
@@ -1,602 +0,0 @@
-/**
- * 前端预览播放器 — 原生 Video 元素方案（浏览器硬件解码，独立线程，不阻塞 UI）
- *
- * 架构：
- * - 默认走原生 video 元素多片段切换播放（useSegmentScheduler 调度），
- *   叠加标题 CSS 浮层、配音音轨（usePreviewAudio）、尾段冻结看门狗、批量播放互斥 token。
- *   UI 拆分为 PreviewControls（控制条/按钮） + PreviewProgressBar（进度条）两个子组件。
- * - WebCodecs 路径已废弃（原 useWebCodecs 常量恒为 false，相关死代码已移除），
- *   保留 useCanvasPlayer hook 文件供未来兜底（不影响当前打包体积）。
- *
- * 对外 API 完全不变：assets / videoRatio / ready / voiceAudioUrl / serverClips 等。
- */
-import React, { useMemo, useCallback, useState, useRef, useEffect } from "react"
-import { PlayCircleOutlined, SoundOutlined } from "@ant-design/icons"
-import type { AssetItem } from "@/api/assets"
-import type { EditPlanClip } from "@/api/template-editor"
-import { useSegmentScheduler, type PlaybackSegment } from "../hooks/useSegmentScheduler"
-import { usePreviewAudio } from "../hooks/usePreviewAudio"
-import { PreviewControls } from "./PreviewControls"
-import { getFontFamily } from "../constants"
-
-interface FrontendPreviewPlayerProps {
-  assets: AssetItem[]
-  videoRatio: string
-  ready: boolean
-  /** 服务端变体计划真实片段（#1750：必填，无 fallback；批量网格传入各变体自己的 clips） */
-  serverClips?: EditPlanClip[]
-  voiceAudioUrl?: string
-  titleSettings?: {
-    title: string
-    size: number
-    font: string
-    color: string
-    position: "top" | "center" | "bottom" | "custom"
-    bold?: boolean
-    italic?: boolean
-    stroke?: boolean
-    shadow?: boolean
-    posX?: number | null
-    posY?: number | null
-  }
-  onTitlePositionChange?: (posX: number, posY: number) => void
-  /**
-   * 播放互斥 token（#1750）：批量网格中为变体序号（0 起），单视频不传。
-   * 持有播放权的实例播放，其余自动暂停。
-   */
-  playToken?: number
-  /** 变体标题文字（批量时每个预览独立标题，叠加在画面上）；不传用 titleSettings.title */
-  variantTitle?: string
-  /** 紧凑模式（批量网格中使用，缩小内边距/标题尺寸） */
-  compact?: boolean
-  /**
-   * 批量网格播放互斥（#1741/#1750）：当前持有播放权的实例 token（变体序号）。
-   * 持有权变化且不等于自身时，本实例自动暂停（视频+配音）。单视频模式不传。
-   */
-  activePlayToken?: number | null
-  /** 播放权变化回调：本实例请求播放时传自身 playToken，暂停时传 null */
-  onPlayTokenChange?: (token: number | null) => void
-  /**
-   * 后端返回的配音时长（秒）P0 对齐：优先以该值作为音画时长锚点；
-   * 未提供则在 audio loadedmetadata 后自测兜底。
-   */
-  voiceDurationHint?: number
-}
-
-/**
- * 将后端变体计划 clips 映射为播放片段（#1750：唯一数据来源，无本地模拟 fallback）
- *
- * 预览不渲染：浏览器按后端真实计划即时播放素材原片，预览即成片。
- * 模板片段数固定、成片时长=配音时长（后端等比分配），前端不再有任何时长假设。
- */
-function buildPlaybackSegments(
-  assets: AssetItem[],
-  serverClips?: EditPlanClip[],
-  /** #1754 前端兜底：配音时长≠clips 总时长时，按比例缩放每段播放时长并调速 */
-  speedFactor = 1,
-): PlaybackSegment[] {
-  if (!assets.length || !serverClips || serverClips.length === 0) return []
-
-  const assetMap = new Map(assets.map((a) => [a.id, a]))
-  const segments: PlaybackSegment[] = []
-  // speedFactor > 1 表示 clips 偏短需加速；< 1 表示 clips 偏长需减速
-  const invSpeed = speedFactor > 0 && Math.abs(speedFactor - 1) > 0.01 ? 1 / speedFactor : 1
-  for (const clip of serverClips) {
-    const asset = assetMap.get(clip.asset_id)
-    if (!asset) continue
-    const assetDuration = asset.duration || asset.metadata?.duration || 0
-    const startTime = clip.start_time || 0
-    // 片段时长以后端计划为准（配音时长等比分配）；素材时长仅用于兜底钳制边界
-    const rawClipDuration = clip.duration || 0
-    // #1754：按 speedFactor 缩放片段时长，使总时长匹配配音
-    const clipDuration = invSpeed !== 1 ? rawClipDuration * invSpeed : rawClipDuration
-    const endTime =
-      assetDuration > 0
-        ? Math.min(startTime + clipDuration, assetDuration)
-        : startTime + clipDuration
-    const videoUrl = asset.file_url || asset.storage_key
-    segments.push({
-      assetId: asset.id,
-      videoUrl,
-      startTime,
-      endTime,
-      order: clip.order,
-      playbackRate: invSpeed !== 1 ? speedFactor : undefined,
-    })
-  }
-  return segments.sort((a, b) => a.order - b.order)
-}
-
-const FrontendPreviewPlayer: React.FC<FrontendPreviewPlayerProps> = ({
-  assets,
-  videoRatio,
-  ready,
-  serverClips,
-  voiceAudioUrl,
-  voiceDurationHint,
-  titleSettings,
-  onTitlePositionChange,
-  playToken,
-  variantTitle,
-  compact = false,
-  activePlayToken = null,
-  onPlayTokenChange,
-}) => {
-  // #1754→P0：配音时长作为音画时长锚点。
-  // 优先使用后端返回的 voiceDurationHint；音频 loadedmetadata 后再以自测值覆盖（更精确）。
-  const [voiceDuration, setVoiceDuration] = useState<number>(() =>
-    voiceDurationHint && voiceDurationHint > 0 ? voiceDurationHint : 0,
-  )
-
-  // #1756：clips 原始总时长 + 转场时长（后端等比分配配音时包含转场占位）
-  const rawClipsDuration = useMemo(() => {
-    if (!serverClips?.length) return 0
-    return serverClips.reduce((sum, c) => sum + (c.duration || 0) + (c.transition_duration || 0), 0)
-  }, [serverClips])
-
-  // #1754→#1756：配音时长可用且与 clips+转场 总时长偏差 > 5% 时，按比例调速
-  const speedFactor = useMemo(() => {
-    if (!voiceDuration || voiceDuration <= 0 || rawClipsDuration <= 0) return 1
-    const ratio = rawClipsDuration / voiceDuration
-    return Math.abs(ratio - 1) > 0.05 ? ratio : 1
-  }, [voiceDuration, rawClipsDuration])
-
-  const segments = useMemo(
-    () => buildPlaybackSegments(assets, serverClips, speedFactor),
-    [assets, serverClips, speedFactor],
-  )
-  // 批量变体：标题文字取 variantTitle，样式仍由全局 titleSettings 控制
-  const effectiveTitle = variantTitle ?? titleSettings?.title
-
-  // ── ASS 坐标系参数（与后端 ass_subtitle_builder.py 一致） ──
-  const TITLE_MARGIN_TOP = 180
-  const TITLE_MARGIN_BOTTOM = 100
-  const TITLE_MARGIN_SIDE = 40
-  const playRes = (() => {
-    switch (videoRatio) {
-      case "16:9":
-        return { width: 1920, height: 1080 }
-      case "1:1":
-        return { width: 1080, height: 1080 }
-      case "9:16":
-      default:
-        return { width: 1080, height: 1920 }
-    }
-  })()
-  const customTitleXPct =
-    titleSettings?.posX != null && playRes.width > 0
-      ? (titleSettings.posX / playRes.width) * 100
-      : null
-  const customTitleYPct =
-    titleSettings?.posY != null && playRes.height > 0
-      ? (titleSettings.posY / playRes.height) * 100
-      : null
-
-  // ── 标题拖拽（用 ref 避免每帧触发 React 重渲染）──
-  const draggingTitleRef = useRef(false)
-  const titleDragRef = useRef<HTMLDivElement>(null)
-  const playerContainerRef = useRef<HTMLDivElement>(null)
-  const handleTitlePointerDown = useCallback(
-    (e: React.PointerEvent<HTMLDivElement>) => {
-      if (!onTitlePositionChange || !playerContainerRef.current) return
-      e.preventDefault()
-      e.stopPropagation()
-      ;(e.target as Element).setPointerCapture(e.pointerId)
-      draggingTitleRef.current = true
-      ;(e.currentTarget as HTMLDivElement).style.cursor = "grabbing"
-    },
-    [onTitlePositionChange],
-  )
-  const handleTitlePointerMove = useCallback((e: React.PointerEvent<HTMLDivElement>) => {
-    if (!draggingTitleRef.current || !playerContainerRef.current) return
-    e.preventDefault()
-    e.stopPropagation()
-    if (titleDragRef.current) {
-      const rect = playerContainerRef.current.getBoundingClientRect()
-      const relX = Math.max(0, Math.min(rect.width, e.clientX - rect.left))
-      const relY = Math.max(0, Math.min(rect.height, e.clientY - rect.top))
-      const xpct = (relX / rect.width) * 100
-      const ypct = (relY / rect.height) * 100
-      titleDragRef.current.style.left = `${xpct}%`
-      titleDragRef.current.style.top = `${ypct}%`
-    }
-  }, [])
-  const handleTitlePointerUp = useCallback(
-    (e: React.PointerEvent<HTMLDivElement>) => {
-      if (!draggingTitleRef.current) return
-      draggingTitleRef.current = false
-      if (onTitlePositionChange && playerContainerRef.current) {
-        const rect = playerContainerRef.current.getBoundingClientRect()
-        const relX = Math.max(0, Math.min(rect.width, e.clientX - rect.left))
-        const relY = Math.max(0, Math.min(rect.height, e.clientY - rect.top))
-        const posX = Math.round((relX / rect.width) * playRes.width)
-        const posY = Math.round((relY / rect.height) * playRes.height)
-        onTitlePositionChange(posX, posY)
-      }
-      ;(e.currentTarget as HTMLDivElement).style.cursor = "grab"
-      try {
-        if ((e.currentTarget as Element).hasPointerCapture(e.pointerId)) {
-          ;(e.currentTarget as Element).releasePointerCapture(e.pointerId)
-        }
-      } catch {
-        /* ignore */
-      }
-    },
-    [onTitlePositionChange, playRes.width, playRes.height],
-  )
-
-  const [containerHeight, setContainerHeight] = useState(0)
-  useEffect(() => {
-    const el = playerContainerRef.current
-    if (!el) return
-    const ro = new ResizeObserver((entries) => {
-      for (const entry of entries) {
-        const h = entry.contentRect.height
-        if (h > 0) setContainerHeight(h)
-      }
-    })
-    ro.observe(el)
-    const rect = el.getBoundingClientRect()
-    if (rect.height > 0) setContainerHeight(rect.height)
-    return () => ro.disconnect()
-  }, [])
-
-  // 标题字号按容器高度与 PlayResY 的比例缩放
-  const titleFontSizePx =
-    containerHeight > 0
-      ? ((titleSettings?.size ?? 36) / playRes.height) * containerHeight
-      : (titleSettings?.size ?? 36)
-  const titleSidePct = (TITLE_MARGIN_SIDE / playRes.width) * 100
-  const titleTopPct = (TITLE_MARGIN_TOP / playRes.height) * 100
-  const titleBottomPct = (TITLE_MARGIN_BOTTOM / playRes.height) * 100
-  const titleScale = containerHeight > 0 ? containerHeight / playRes.height : 1
-  const titleStrokeWidth = Math.max(1, 2 * titleScale)
-  const titleShadowBlur = 4 * titleScale
-  const titleShadowOffset = 2 * titleScale
-
-  // ── Video 播放器（默认路径，浏览器原生硬件解码） ──
-  const {
-    isPlaying,
-    currentTime,
-    totalDuration,
-    currentSegmentIndex,
-    canPlay,
-    togglePlayPause,
-    seekTo,
-    pause,
-    videoRefs,
-  } = useSegmentScheduler(segments)
-
-  // P0 fix：以配音时长为音画同步锚点。
-  // 有配音时总时长 = 配音时长（短则末帧冻结，长则硬停）；无配音时沿用视频总时长（素材原声兜底）。
-  const effectiveTotalDuration =
-    !!voiceAudioUrl && voiceDuration > 0 ? voiceDuration : totalDuration
-
-  // 本卡片静音开关（#1741）：默认有声，用户可点喇叭单独静音某张卡片
-  const [muted, setMuted] = useState(false)
-  // 有配音时 video 素材保持静音（避免原声与配音混音）；无配音时取消静音，素材原声兜底
-  const hasVoice = !!voiceAudioUrl
-
-  // 音频 ended：兜底触发暂停与释放播放权
-  const handleAudioEnded = useCallback(() => {
-    if (!isPlaying) return
-    pause()
-    if (playToken != null) onPlayTokenChange?.(null)
-  }, [isPlaying, pause, playToken, onPlayTokenChange])
-
-  const {
-    seekTo: audioSeekTo,
-    ensurePlayingAt: audioEnsurePlayingAt,
-    pause: audioPause,
-  } = usePreviewAudio({
-    voiceAudioUrl,
-    voiceDurationHint,
-    muted,
-    isPlaying,
-    currentTime,
-    onVoiceDurationChange: setVoiceDuration,
-    onEnded: handleAudioEnded,
-  })
-
-  // 片段切换时同步音频时间（video fallback）
-  useEffect(() => {
-    if (!isPlaying) return
-    audioSeekTo(currentTime)
-    // 注意：不要把 currentTime 放进依赖数组，否则每200ms会重置音频位置导致卡顿
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [currentSegmentIndex, isPlaying])
-
-  // P0 fix：视频比配音短时的「末帧冻结+音频续播」模式。
-  // 视频调度器播完最后一段自动 pause，此时若配音仍在播，用 rAF 虚拟时钟推进 currentTime 直到配音结束。
-  const [tailCurrentTime, setTailCurrentTime] = useState<number | null>(null)
-  const tailStartRef = useRef<number>(0)
-  const tailBaseRef = useRef<number>(0)
-  const tailAudioRef = useRef({ ensurePlayingAt: audioEnsurePlayingAt, pause: audioPause })
-  tailAudioRef.current = { ensurePlayingAt: audioEnsurePlayingAt, pause: audioPause }
-
-  useEffect(() => {
-    const needTail =
-      !!voiceAudioUrl &&
-      voiceDuration > 0 &&
-      !isPlaying &&
-      typeof currentTime === "number" &&
-      currentTime >= totalDuration - 0.1 &&
-      currentTime < voiceDuration - 0.1
-    if (needTail && tailCurrentTime === null) {
-      tailBaseRef.current = currentTime
-      tailStartRef.current = performance.now()
-      setTailCurrentTime(currentTime)
-      tailAudioRef.current.ensurePlayingAt(currentTime)
-      return
-    }
-    if (!needTail && tailCurrentTime !== null) {
-      setTailCurrentTime(null)
-    }
-  }, [isPlaying, currentTime, totalDuration, voiceDuration, voiceAudioUrl, tailCurrentTime])
-
-  useEffect(() => {
-    if (tailCurrentTime === null) return
-    let raf = 0
-    const tick = () => {
-      const elapsed = (performance.now() - tailStartRef.current) / 1000
-      const t = Math.min(tailBaseRef.current + elapsed, voiceDuration || tailBaseRef.current)
-      setTailCurrentTime(t)
-      tailAudioRef.current.ensurePlayingAt(t)
-      if (t >= (voiceDuration || 0) - 0.05) {
-        tailAudioRef.current.pause()
-        if (playToken != null) onPlayTokenChange?.(null)
-        setTailCurrentTime(null)
-        return
-      }
-      raf = requestAnimationFrame(tick)
-    }
-    raf = requestAnimationFrame(tick)
-    return () => cancelAnimationFrame(raf)
-  }, [tailCurrentTime, voiceDuration, playToken, onPlayTokenChange])
-
-  // 呈现给 UI/进度条的「当前时间」：尾段用虚拟时间，否则用视频时间
-  const displayCurrentTime = tailCurrentTime !== null ? tailCurrentTime : currentTime
-
-  const handleSeekTo = useCallback(
-    (time: number) => {
-      setTailCurrentTime(null)
-      seekTo(time)
-      audioSeekTo(time)
-    },
-    [seekTo, audioSeekTo],
-  )
-
-  // ── 批量网格播放互斥（#1741）：播放权属于其他实例时，本实例自动暂停 ──
-  useEffect(() => {
-    if (activePlayToken == null || playToken == null || activePlayToken === playToken) return
-    if (isPlaying) {
-      pause()
-    }
-    // isPlaying 不放依赖：只在 token 变化时执行一次暂停
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [activePlayToken, playToken])
-
-  const handleTogglePlay = useCallback(() => {
-    if (playToken != null) onPlayTokenChange?.(isPlaying ? null : playToken)
-    togglePlayPause()
-  }, [togglePlayPause, isPlaying, playToken, onPlayTokenChange])
-
-  // P0 fix：音画同步看门狗——有配音时播放时间达到配音时长立即暂停视频+音频（末帧冻结）
-  useEffect(() => {
-    if (!isPlaying) return
-    if (!voiceAudioUrl || voiceDuration <= 0) return
-    if (displayCurrentTime < voiceDuration - 0.08) return
-    pause()
-    audioPause()
-    if (playToken != null) onPlayTokenChange?.(null)
-  }, [
-    isPlaying,
-    displayCurrentTime,
-    voiceAudioUrl,
-    voiceDuration,
-    pause,
-    audioPause,
-    playToken,
-    onPlayTokenChange,
-  ])
-
-  // ── 未就绪 ──
-  if (!ready || !assets.length) {
-    return (
-      <div
-        style={{
-          position: "relative",
-          width: "100%",
-          maxWidth: 280,
-          aspectRatio: "9 / 16",
-          background: "#0a0a0a",
-          borderRadius: 24,
-          overflow: "hidden",
-          boxShadow:
-            "0 4px 6px -1px rgba(0,0,0,0.3), 0 20px 50px -12px rgba(0,0,0,0.5), inset 0 0 0 1px rgba(255,255,255,0.06)",
-          display: "flex",
-          flexDirection: "column",
-          alignItems: "center",
-          justifyContent: "center",
-        }}
-      >
-        <SoundOutlined style={{ fontSize: 40, color: "rgba(255,255,255,0.3)", marginBottom: 12 }} />
-        <p style={{ color: "rgba(255,255,255,0.6)", fontSize: 14, margin: "0 0 4px" }}>
-          准备预览素材...
-        </p>
-        <p style={{ color: "rgba(255,255,255,0.35)", fontSize: 12, margin: 0 }}>
-          加载素材后即可预览播放
-        </p>
-      </div>
-    )
-  }
-
-  // ── 无播放片段 ──
-  if (!canPlay) {
-    return (
-      <div
-        style={{
-          position: "relative",
-          width: "100%",
-          maxWidth: 280,
-          aspectRatio: "9 / 16",
-          background: "#0a0a0a",
-          borderRadius: 24,
-          overflow: "hidden",
-          boxShadow:
-            "0 4px 6px -1px rgba(0,0,0,0.3), 0 20px 50px -12px rgba(0,0,0,0.5), inset 0 0 0 1px rgba(255,255,255,0.06)",
-          display: "flex",
-          flexDirection: "column",
-          alignItems: "center",
-          justifyContent: "center",
-          padding: 24,
-        }}
-      >
-        <PlayCircleOutlined
-          style={{ fontSize: 40, color: "rgba(255,255,255,0.3)", marginBottom: 12 }}
-        />
-        <p style={{ color: "rgba(255,255,255,0.6)", fontSize: 14, margin: "0 0 4px" }}>
-          暂无可播放素材
-        </p>
-        <p style={{ color: "rgba(255,255,255,0.35)", fontSize: 12, margin: 0 }}>
-          请先在左侧选择素材
-        </p>
-      </div>
-    )
-  }
-
-  return (
-    <div
-      ref={playerContainerRef}
-      style={{
-        position: "relative",
-        width: "100%",
-        maxWidth: compact ? "100%" : 280,
-        margin: compact ? 0 : "0 auto",
-        aspectRatio: "9 / 16",
-        background: compact ? "transparent" : "#0a0a0a",
-        borderRadius: compact ? 10 : 24,
-        overflow: "hidden",
-        boxShadow: compact
-          ? "inset 0 0 0 1px rgba(255,255,255,0.06)"
-          : "0 4px 6px -1px rgba(0,0,0,0.3), 0 20px 50px -12px rgba(0,0,0,0.5), inset 0 0 0 1px rgba(255,255,255,0.06)",
-      }}
-    >
-      {/* ── Video 渲染层（默认路径，浏览器原生硬件解码） ── */}
-      {segments.map((seg, i) => (
-        <video
-          key={seg.assetId}
-          ref={(el) => {
-            videoRefs.current[i] = el
-          }}
-          preload="auto"
-          src={seg.videoUrl}
-          style={{
-            position: "absolute",
-            inset: 0,
-            width: "100%",
-            height: "100%",
-            objectFit: "cover",
-            background: "#000",
-            zIndex: 1,
-            opacity: i === currentSegmentIndex ? 1 : 0,
-            pointerEvents: i === currentSegmentIndex ? "auto" : "none",
-          }}
-          muted={hasVoice || muted}
-          playsInline
-        />
-      ))}
-
-      {/* 标题CSS叠加层 — 与后端 ASS 烧录坐标系 1:1 对齐 */}
-      {titleSettings?.title && (
-        <div
-          style={{
-            position: "absolute",
-            inset: 0,
-            zIndex: 5,
-            pointerEvents: "none",
-            overflow: "hidden",
-          }}
-        >
-          <div
-            style={{
-              position: "absolute",
-              width: `${100 - 2 * titleSidePct}%`,
-              maxWidth: `${100 - 2 * titleSidePct}%`,
-              ...(customTitleXPct != null && customTitleYPct != null
-                ? {
-                    left: `${customTitleXPct}%`,
-                    top: `${customTitleYPct}%`,
-                    transform: "translate(-50%, -50%)",
-                    textAlign: "center" as const,
-                  }
-                : {
-                    left: "50%",
-                    transform: "translateX(-50%)",
-                    textAlign: "center" as const,
-                    ...(titleSettings.position === "top"
-                      ? { top: `${titleTopPct}%` }
-                      : titleSettings.position === "center"
-                        ? { top: "50%", transform: "translate(-50%, -50%)" }
-                        : { bottom: `${titleBottomPct}%` }),
-                  }),
-              pointerEvents: onTitlePositionChange && playToken == null ? "auto" : "none",
-              cursor: onTitlePositionChange && playToken == null ? "grab" : "default",
-              touchAction: "none",
-              userSelect: "none",
-              WebkitUserSelect: "none",
-              padding: "8px 12px",
-              boxShadow: "inset 0 0 0 16px transparent",
-            }}
-            ref={titleDragRef}
-            onPointerDown={handleTitlePointerDown}
-            onPointerMove={handleTitlePointerMove}
-            onPointerUp={handleTitlePointerUp}
-            onPointerCancel={handleTitlePointerUp}
-          >
-            <span
-              style={{
-                fontSize: `${titleFontSizePx}px`,
-                fontFamily: getFontFamily(titleSettings.font || "思源黑体"),
-                color: titleSettings.color || "#ffffff",
-                fontWeight: titleSettings.bold ? 700 : 400,
-                fontStyle: titleSettings.italic ? "italic" : "normal",
-                lineHeight: 1.05,
-                wordBreak: "break-word",
-                WebkitTextStroke: titleSettings.stroke
-                  ? `${titleStrokeWidth}px #000000`
-                  : undefined,
-                textShadow: titleSettings.shadow
-                  ? `${titleShadowOffset}px ${titleShadowOffset}px ${titleShadowBlur}px rgba(0,0,0,0.8)`
-                  : undefined,
-              }}
-            >
-              {(effectiveTitle || "").split(/[/／]/).map((part, i) => (
-                <span key={i}>
-                  {i > 0 && <br />}
-                  {part}
-                </span>
-              ))}
-            </span>
-          </div>
-        </div>
-      )}
-
-      <PreviewControls
-        isPlaying={isPlaying}
-        onTogglePlay={handleTogglePlay}
-        muted={muted}
-        onToggleMute={() => setMuted((m) => !m)}
-        hasSegments={segments.length > 0}
-        segmentIndex={currentSegmentIndex}
-        segmentCount={segments.length}
-        currentTime={displayCurrentTime}
-        totalDuration={effectiveTotalDuration}
-        onSeek={handleSeekTo}
-        compact={compact}
-      />
-    </div>
-  )
-}
-
-export default FrontendPreviewPlayer
@@ -4,7 +4,6 @@
 * 原步骤"选择配音"已从主流程移除，改为 Step1 下一步分支弹窗（VoiceSelectModal / ScriptSelectModal → TtsVoiceModal）。
 */
 import React from "react"
-import type { EditPlanClip } from "@/api/template-editor"
 import type { CoverConfig } from "../types/cover"
 import type { TitleSettings } from "../types"
 import type { ScriptItem } from "@/api/scripts"
@@ -16,6 +15,7 @@ import Step6CoverSettings from "../components/Step6CoverSettings"
 import BatchGenerationGrid from "./BatchGenerationGrid"
 import type { BatchTaskState } from "../hooks/generate-video/useGenerationPolling"
 import type { GeneratedVideo } from "@/api/template-editor"
+import type { TitleTemplate } from "@/components/title/template-types"

 export interface GenerateStepContentProps {
  currentStep: number
@@ -59,13 +59,15 @@ export interface GenerateStepContentProps {
    emoji?: string
    style: Record<string, unknown>
  }>
+  enableTemplates?: boolean
+  selectedTemplateId?: string | null
+  onApplyTemplate?: (settings: import("../types").TitleSettings, template: TitleTemplate) => void
  /* ── 封面 ── */
  coverSettings: CoverConfig
  onCoverSettingsChange: (settings: CoverConfig) => void
  /* ── 配音 ── */
  selectedVoice: string
  onSelectedVoiceChange: (id: string) => void
-  onServerClipsChange: (clips: EditPlanClip[]) => void
  /* ── 生成 ── */
  generating: boolean
  generated: boolean
@@ -126,11 +128,13 @@ export const GenerateStepContent: React.FC<GenerateStepContentProps> = (props) =
    onToggleShadow,
    onApplyPreset,
    onUpdateStyle,
+    enableTemplates,
+    selectedTemplateId,
+    onApplyTemplate,
    activePreset,
    titlePresets,
    coverSettings,
    onCoverSettingsChange,
-    onServerClipsChange,
    generating,
    generateError,
    progress,
@@ -148,13 +152,6 @@ export const GenerateStepContent: React.FC<GenerateStepContentProps> = (props) =
    ttsVoiceSource,
  } = props

-  const handleClipsChange = React.useCallback(
-    (clips: EditPlanClip[], _templateId?: string) => {
-      onServerClipsChange(clips)
-    },
-    [onServerClipsChange],
-  )
-
  switch (currentStep) {
    case 1:
      return (
@@ -182,7 +179,6 @@ export const GenerateStepContent: React.FC<GenerateStepContentProps> = (props) =
          clipCount={clipCount}
          onClipCountChange={onClipCountChange}
          selectedTemplate={selectedTemplate}
-          onServerClipsChange={handleClipsChange}
        />
      )
    case 3:
@@ -201,6 +197,9 @@ export const GenerateStepContent: React.FC<GenerateStepContentProps> = (props) =
          onUpdateStyle={onUpdateStyle}
          activePreset={activePreset}
          titlePresets={titlePresets}
+          enableTemplates={enableTemplates}
+          selectedTemplateId={selectedTemplateId}
+          onApplyTemplate={onApplyTemplate}
          previewCount={previewCount}
          previewTitles={previewTitles}
          onPreviewTitlesChange={onPreviewTitlesChange}
@@ -1,195 +0,0 @@
-import React from "react"
-import {
-  PlayCircleOutlined,
-  PauseCircleOutlined,
-  AudioOutlined,
-  AudioMutedOutlined,
-} from "@ant-design/icons"
-import { PreviewProgressBar } from "./PreviewProgressBar"
-
-interface PreviewControlsProps {
-  isPlaying: boolean
-  onTogglePlay: () => void
-  muted: boolean
-  onToggleMute: () => void
-  hasSegments: boolean
-  segmentIndex: number
-  segmentCount: number
-  currentTime: number
-  totalDuration: number
-  onSeek: (time: number) => void
-  compact?: boolean
-}
-
-/**
- * 播放控制 UI 组件（静音按钮 / 片段指示器 / 中央播放按钮 / 底部毛玻璃控制条）
- */
-export const PreviewControls: React.FC<PreviewControlsProps> = ({
-  isPlaying,
-  onTogglePlay,
-  muted,
-  onToggleMute,
-  hasSegments,
-  segmentIndex,
-  segmentCount,
-  currentTime,
-  totalDuration,
-  onSeek,
-  compact = false,
-}) => {
-  return (
-    <>
-      {/* 静音/有声切换（#1741）：左上角 */}
-      {hasSegments && (
-        <button
-          type="button"
-          aria-label={muted ? "取消静音" : "静音"}
-          title={muted ? "取消静音" : "静音"}
-          onClick={onToggleMute}
-          style={{
-            position: "absolute",
-            top: 8,
-            left: 8,
-            width: compact ? 26 : 30,
-            height: compact ? 26 : 30,
-            display: "flex",
-            alignItems: "center",
-            justifyContent: "center",
-            background: "rgba(0,0,0,0.45)",
-            backdropFilter: "blur(8px)",
-            WebkitBackdropFilter: "blur(8px)",
-            border: "1px solid rgba(255,255,255,0.1)",
-            borderRadius: "50%",
-            color: muted ? "rgba(255,255,255,0.45)" : "rgba(255,255,255,0.92)",
-            fontSize: compact ? 13 : 15,
-            cursor: "pointer",
-            zIndex: 10,
-            padding: 0,
-            transition: "background 0.15s, color 0.15s",
-          }}
-          onMouseEnter={(e) => {
-            e.currentTarget.style.background = "rgba(0,0,0,0.65)"
-          }}
-          onMouseLeave={(e) => {
-            e.currentTarget.style.background = "rgba(0,0,0,0.45)"
-          }}
-        >
-          {muted ? <AudioMutedOutlined /> : <AudioOutlined />}
-        </button>
-      )}
-
-      {/* 片段指示器 — 右上角胶囊 */}
-      <div
-        style={{
-          position: "absolute",
-          top: 8,
-          right: 8,
-          background: "rgba(0,0,0,0.45)",
-          backdropFilter: "blur(8px)",
-          WebkitBackdropFilter: "blur(8px)",
-          color: "rgba(255,255,255,0.9)",
-          fontSize: compact ? 9 : 10,
-          fontWeight: 500,
-          padding: compact ? "1px 6px" : "2px 8px",
-          borderRadius: 999,
-          zIndex: 10,
-          border: "1px solid rgba(255,255,255,0.1)",
-          letterSpacing: 0.3,
-        }}
-      >
-        {`${segmentIndex + 1} / ${segmentCount}`}
-      </div>
-
-      {/* 中央播放按钮 */}
-      {!isPlaying && (
-        <button
-          onClick={onTogglePlay}
-          style={{
-            position: "absolute",
-            top: "50%",
-            left: "50%",
-            transform: "translate(-50%, -50%)",
-            background: "rgba(0,0,0,0.45)",
-            backdropFilter: "blur(12px)",
-            WebkitBackdropFilter: "blur(12px)",
-            border: "1px solid rgba(255,255,255,0.15)",
-            borderRadius: "50%",
-            width: 52,
-            height: 52,
-            cursor: "pointer",
-            display: "flex",
-            alignItems: "center",
-            justifyContent: "center",
-            color: "#fff",
-            fontSize: 26,
-            zIndex: 10,
-            transition: "transform 0.2s ease, background 0.2s ease",
-            boxShadow: "0 4px 20px rgba(0,0,0,0.4)",
-          }}
-          onMouseEnter={(e) => {
-            e.currentTarget.style.transform = "translate(-50%, -50%) scale(1.08)"
-            e.currentTarget.style.background = "rgba(0,0,0,0.6)"
-          }}
-          onMouseLeave={(e) => {
-            e.currentTarget.style.transform = "translate(-50%, -50%) scale(1)"
-            e.currentTarget.style.background = "rgba(0,0,0,0.45)"
-          }}
-        >
-          <PlayCircleOutlined />
-        </button>
-      )}
-
-      {/* 控制条 — 手机风格毛玻璃 */}
-      <div
-        style={{
-          position: "absolute",
-          bottom: 0,
-          left: 0,
-          right: 0,
-          display: "flex",
-          alignItems: "center",
-          gap: compact ? 6 : 10,
-          padding: compact ? "8px 10px 10px" : "12px 16px 16px",
-          background: "linear-gradient(transparent, rgba(0,0,0,0.7))",
-          backdropFilter: "blur(4px)",
-          WebkitBackdropFilter: "blur(4px)",
-          zIndex: 10,
-        }}
-      >
-        <button
-          onClick={onTogglePlay}
-          style={{
-            background: "rgba(255,255,255,0.15)",
-            border: "none",
-            color: "#fff",
-            fontSize: compact ? 14 : 16,
-            cursor: "pointer",
-            width: compact ? 26 : 32,
-            height: compact ? 26 : 32,
-            borderRadius: "50%",
-            display: "flex",
-            alignItems: "center",
-            justifyContent: "center",
-            flexShrink: 0,
-            transition: "background 0.15s",
-          }}
-          onMouseEnter={(e) => {
-            e.currentTarget.style.background = "rgba(255,255,255,0.25)"
-          }}
-          onMouseLeave={(e) => {
-            e.currentTarget.style.background = "rgba(255,255,255,0.15)"
-          }}
-        >
-          {isPlaying ? <PauseCircleOutlined /> : <PlayCircleOutlined />}
-        </button>
-
-        <PreviewProgressBar
-          currentTime={currentTime}
-          totalDuration={totalDuration}
-          onSeek={onSeek}
-          compact={compact}
-        />
-      </div>
-    </>
-  )
-}
@@ -1,108 +0,0 @@
-import React, { useCallback, useEffect, useRef, useState } from "react"
-import { formatDuration } from "../utils/formatDuration"
-
-interface PreviewProgressBarProps {
-  currentTime: number
-  totalDuration: number
-  onSeek: (time: number) => void
-  compact?: boolean
-}
-
-/**
- * 进度条组件：点击/拖拽 seek
- */
-export const PreviewProgressBar: React.FC<PreviewProgressBarProps> = ({
-  currentTime,
-  totalDuration,
-  onSeek,
-  compact = false,
-}) => {
-  const progressRef = useRef<HTMLDivElement>(null)
-  const [isDragging, setIsDragging] = useState(false)
-
-  const seekByClientX = useCallback(
-    (clientX: number) => {
-      if (!progressRef.current || totalDuration <= 0) return
-      const rect = progressRef.current.getBoundingClientRect()
-      const ratio = Math.max(0, Math.min(1, (clientX - rect.left) / rect.width))
-      onSeek(ratio * totalDuration)
-    },
-    [totalDuration, onSeek],
-  )
-
-  const handleMouseDown = useCallback(
-    (e: React.MouseEvent<HTMLDivElement>) => {
-      setIsDragging(true)
-      seekByClientX(e.clientX)
-    },
-    [seekByClientX],
-  )
-
-  useEffect(() => {
-    if (!isDragging) return
-    const handleMouseMove = (e: MouseEvent) => seekByClientX(e.clientX)
-    const handleMouseUp = () => setIsDragging(false)
-    window.addEventListener("mousemove", handleMouseMove)
-    window.addEventListener("mouseup", handleMouseUp)
-    return () => {
-      window.removeEventListener("mousemove", handleMouseMove)
-      window.removeEventListener("mouseup", handleMouseUp)
-    }
-  }, [isDragging, seekByClientX])
-
-  const progressPercent = totalDuration > 0 ? (currentTime / totalDuration) * 100 : 0
-
-  return (
-    <>
-      <span
-        style={{
-          fontSize: compact ? 10 : 11,
-          color: "rgba(255,255,255,0.85)",
-          minWidth: compact ? 58 : 72,
-          fontVariantNumeric: "tabular-nums",
-          letterSpacing: 0.2,
-        }}
-      >
-        {formatDuration(currentTime)} / {formatDuration(totalDuration)}
-      </span>
-
-      <div
-        ref={progressRef}
-        onMouseDown={handleMouseDown}
-        style={{
-          flex: 1,
-          height: 3,
-          background: "rgba(255,255,255,0.2)",
-          borderRadius: 2,
-          cursor: "pointer",
-          position: "relative",
-        }}
-      >
-        <div
-          style={{
-            height: "100%",
-            width: `${progressPercent}%`,
-            background: "#fff",
-            borderRadius: 2,
-            transition: isDragging ? "none" : "width 0.1s linear",
-          }}
-        />
-        <div
-          style={{
-            position: "absolute",
-            top: "50%",
-            left: `${progressPercent}%`,
-            transform: "translate(-50%, -50%)",
-            width: 10,
-            height: 10,
-            borderRadius: "50%",
-            background: "#fff",
-            boxShadow: "0 0 6px rgba(255,255,255,0.5)",
-            opacity: isDragging ? 1 : 0,
-            transition: "opacity 0.15s",
-          }}
-        />
-      </div>
-    </>
-  )
-}
@@ -1,24 +1,19 @@
 /**
 * Step 4 选择标题（Issue #1677 批量生成）
 *
- * 布局（由 GeneratePage 编排）：左侧大区域实时预览（单=大播放器，批量=Canvas 网格），
- * 右侧边栏标题设置。本组件渲染在右侧边栏：
- * - 单视频：AI 标题生成器 + AutoComplete 标题库（与旧版完全一致，零回归）
- * - 批量：N 个独立标题输入框（AutoComplete 支持标题库选择）+ 批量 AI 生成
- *   （一次生成 N 个标题，分别填入各变体，可单独换一个）
+ * 布局：全宽区域，标题输入 + 标题模板卡片网格。
+ * - 单视频：TitleLibraryAutoComplete 标题库输入
+ * - 批量：N 个独立标题输入框（AutoComplete 支持标题库选择）
 * - 标题样式（字体/颜色/位置/大小/粗斜描边/预设）：全局统一
 */
-import React, { useMemo, useState } from "react"
-import { Input, message } from "antd"
-import { LoadingOutlined } from "@ant-design/icons"
+import React, { useMemo } from "react"
 import type { TitleSettings } from "../types"
 import { POSITION_OPTIONS } from "../constants"
 import { FONT_OPTIONS } from "@/components/title/constants"
 import { useStep4Title } from "../hooks/useStep4Title"
-import AiTitleGenerator from "./title/AiTitleGenerator"
 import TitleLibraryAutoComplete from "./title/TitleLibraryAutoComplete"
 import TitleStylePanel from "./title/TitleStylePanel"
-import { AI_TITLE_TEMPLATES } from "../constants"
+import type { TitleTemplate } from "@/components/title/template-types"

 interface Step4TitleSettingsProps {
  titleSettings: TitleSettings
@@ -49,36 +44,9 @@ interface Step4TitleSettingsProps {
  /** 每个变体的标题文字（长度=previewCount） */
  previewTitles?: string[]
  onPreviewTitlesChange?: (titles: string[]) => void
-}
-
-/** 从本地 AI 标题模板池按主题词生成 N 个不同标题（与单视频 AI 生成同源） */
-function buildBatchAiTitles(topic: string, count: number): string[] {
-  const styles: Array<"catchy" | "emotional" | "informative"> = [
-    "catchy",
-    "emotional",
-    "informative",
-  ]
-  const pool: string[] = []
-  styles.forEach((style) => {
-    const templates = AI_TITLE_TEMPLATES[style] || []
-    templates.forEach((tpl) => pool.push(tpl.replace(/\{topic\}/g, topic)))
-  })
-  // 洗牌后取前 count 个；不足则轮转补齐
-  const shuffled = [...pool].sort(() => Math.random() - 0.5)
-  const out: string[] = []
-  for (let i = 0; i < count; i++) {
-    out.push(shuffled[i % shuffled.length] || "")
-  }
-  return out
-}
-
-function extractTopic(text: string): string {
-  const keywords = text
-    .replace(/[，。！？、,.!?]/g, " ")
-    .split(/\s+/)
-    .filter(Boolean)
-  if (keywords.length === 0) return "这个话题"
-  return keywords.slice(0, 3).join("")
+  enableTemplates?: boolean
+  selectedTemplateId?: string | null
+  onApplyTemplate?: (settings: TitleSettings, template: TitleTemplate) => void
 }

 const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
@@ -98,11 +66,12 @@ const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
    previewCount = 1,
    previewTitles,
    onPreviewTitlesChange,
+    enableTemplates,
+    selectedTemplateId,
+    onApplyTemplate,
  } = props

  const isBatch = previewCount > 1
-  const [batchAiLoading, setBatchAiLoading] = useState(false)
-  const [batchAiTopic, setBatchAiTopic] = useState("")

  /** 更新单个变体标题；变体0同步写回 titleSettings.title（全局样式面板/草稿/TTS 链路依赖） */
  const updateVariantTitle = (index: number, val: string) => {
@@ -115,117 +84,31 @@ const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
    }
  }

-  /** 批量 AI 生成：按主题词生成标题，分别填入 N 个变体 */
-  const handleBatchAiGenerate = async (onlyEmpty = false) => {
-    if (!onPreviewTitlesChange || !previewTitles) return
-    const topic = (batchAiTopic || t.aiTitleInput || "").trim()
-    if (!topic) {
-      message.warning("请先输入主题词，例如：萌宠日常、旅行vlog")
-      return
-    }
-    setBatchAiLoading(true)
-    try {
-      // 与单视频一致：本地模板模拟 AI 生成（1200ms 体验延迟）
-      await new Promise((resolve) => setTimeout(resolve, 800))
-      const picked = buildBatchAiTitles(extractTopic(topic), previewCount)
-      const next = [...previewTitles]
-      for (let i = 0; i < previewCount; i++) {
-        if (onlyEmpty && next[i]?.trim()) continue
-        if (picked[i]) next[i] = picked[i]
-      }
-      onPreviewTitlesChange(next)
-      if (next[0]) t.updateTitle(next[0])
-      message.success(`已为 ${previewCount} 个视频生成标题，可单独修改`)
-    } finally {
-      setBatchAiLoading(false)
-    }
-  }
-
  const titleOptions = useMemo(
    () => t.userTitles.map((ut) => ({ label: ut.content, value: ut.content })),
    [t.userTitles],
  )

  return (
-    <div className="xx-form-section xx-title-sidebar">
+    <div className="xx-form-section">
      <h3>📝 选择标题</h3>

      {!isBatch ? (
-        /* ── 单视频：原有 AI 标题 + 输入框（保持不变，零回归） ── */
-        <>
-          {t.titleSettings.aiAutoSelect ? (
-            <>
-              <div className="xx-title-ai-toggle">
-                <span className="xx-toggle-label">AI 自动选择标题</span>
-                <div className="xx-switch active" onClick={t.toggleAiAutoSelect}>
-                  <div className="xx-switch-knob" />
-                </div>
-              </div>
-              <div className="xx-form-field">
-                <label>当前 AI 选定标题</label>
-                <div
-                  style={{
-                    display: "flex",
-                    alignItems: "center",
-                    gap: 10,
-                    padding: "8px 12px",
-                    background: "var(--bg-secondary, rgba(0,0,0,0.04))",
-                    borderRadius: 8,
-                    fontSize: 14,
-                    color: "var(--text-primary, #333)",
-                  }}
-                >
-                  <span style={{ flex: 1 }}>
-                    {(previewTitles?.[0] ?? t.titleSettings.title) || "AI 将自动为你选择标题"}
-                  </span>
-                  <button
-                    type="button"
-                    className="xx-btn xx-btn-primary"
-                    style={{ flexShrink: 0, fontSize: 13, padding: "4px 12px" }}
-                    onClick={t.autoGenerateTitle}
-                  >
-                    🔄 换一个
-                  </button>
-                </div>
-              </div>
-            </>
-          ) : (
-            <>
-              <AiTitleGenerator
-                inputValue={t.aiTitleInput}
-                onInputChange={t.setAiTitleInput}
-                generating={t.aiTitleGenerating}
-                onGenerate={t.handleGenerateAiTitles}
-                results={t.aiTitleResults}
-                hasGenerated={t.hasGeneratedTitles}
-                onSelect={t.handleSelectAiTitle}
-                selectedTitle={t.titleSettings.title}
-                onRefresh={t.handleRefreshAiTitles}
-              />
-
-              <div className="xx-title-ai-toggle">
-                <span className="xx-toggle-label">AI 自动选择标题</span>
-                <div className="xx-switch" onClick={t.toggleAiAutoSelect}>
-                  <div className="xx-switch-knob" />
-                </div>
-              </div>
-              <div className="xx-form-field">
-                <label>标题</label>
-                <TitleLibraryAutoComplete
-                  placeholder="输入或从标题库选择"
-                  value={previewTitles?.[0] ?? t.titleSettings.title}
-                  onChange={(val) => {
-                    t.updateTitle(val || "")
-                    onPreviewTitlesChange?.([val || ""])
-                  }}
-                  options={titleOptions}
-                />
-              </div>
-            </>
-          )}
-        </>
+        /* ── 单视频：标题输入框 ── */
+        <div className="xx-form-field" style={{ maxWidth: 640 }}>
+          <label>标题</label>
+          <TitleLibraryAutoComplete
+            placeholder="输入或从标题库选择"
+            value={previewTitles?.[0] ?? t.titleSettings.title}
+            onChange={(val) => {
+              t.updateTitle(val || "")
+              onPreviewTitlesChange?.([val || ""])
+            }}
+            options={titleOptions}
+          />
+        </div>
      ) : (
-        /* ── 批量：AI 批量生成 + N 个独立标题输入框（AutoComplete 支持标题库） ── */
+        /* ── 批量：N 个独立标题输入框 ── */
        <div className="xx-batch-titles">
          <div
            style={{
@@ -235,42 +118,11 @@ const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
              lineHeight: 1.6,
            }}
          >
-            为每个视频输入独立标题，修改会实时叠加到左侧对应视频上。标题样式（字体/颜色/位置）全局统一。
-          </div>
-
-          {/* 批量 AI 标题 */}
-          <div className="xx-batch-ai-row">
-            <Input
-              placeholder="主题词，如：萌宠日常、旅行vlog"
-              value={batchAiTopic || t.aiTitleInput}
-              onChange={(e) => {
-                setBatchAiTopic(e.target.value)
-                t.setAiTitleInput(e.target.value)
-              }}
-              maxLength={30}
-              size="small"
-              style={{ flex: 1 }}
-            />
-            <button
-              type="button"
-              className="xx-btn xx-btn-primary xx-btn-sm"
-              disabled={batchAiLoading}
-              onClick={() => handleBatchAiGenerate(false)}
-            >
-              {batchAiLoading ? <LoadingOutlined /> : "✨"} 一键生成 {previewCount} 个标题
-            </button>
-            <button
-              type="button"
-              className="xx-btn xx-btn-ghost xx-btn-sm"
-              disabled={batchAiLoading}
-              onClick={() => handleBatchAiGenerate(true)}
-            >
-              补填空标题
-            </button>
+            为每个视频输入独立标题。标题样式（字体/颜色/位置）全局统一。
          </div>

          {Array.from({ length: previewCount }, (_, i) => (
-            <div className="xx-form-field" key={i}>
+            <div className="xx-form-field" key={i} style={{ maxWidth: 640 }}>
              <label>视频 {i + 1} 标题</label>
              <TitleLibraryAutoComplete
                placeholder={`输入或选择视频 ${i + 1} 的标题`}
@@ -300,6 +152,9 @@ const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
        titlePresets={titlePresets}
        POSITION_OPTIONS={POSITION_OPTIONS}
        FONT_OPTIONS={FONT_OPTIONS}
+        enableTemplates={enableTemplates}
+        selectedTemplateId={selectedTemplateId}
+        onApplyTemplate={onApplyTemplate}
      />
    </div>
  )
@@ -1,35 +0,0 @@
-/**
- * 单个 AI 标题卡片
- */
-import React from "react"
-import { CheckCircleFilled } from "@ant-design/icons"
-
-interface AiTitleCardProps {
-  title: string
-  highlight: string
-  style: "catchy" | "emotional" | "informative"
-  selected: boolean
-  onClick: () => void
-}
-
-const AiTitleCard: React.FC<AiTitleCardProps> = ({
-  title,
-  highlight,
-  style,
-  selected,
-  onClick,
-}) => {
-  return (
-    <div className={`xx-ai-title-card ${selected ? "selected" : ""} ${style}`} onClick={onClick}>
-      <div className="xx-ai-title-card-text">{title}</div>
-      <div className="xx-ai-title-card-tag">{highlight}</div>
-      {selected && (
-        <div className="xx-ai-title-card-check">
-          <CheckCircleFilled style={{ color: "#fff", fontSize: 14 }} />
-        </div>
-      )}
-    </div>
-  )
-}
-
-export default AiTitleCard
@@ -1,105 +0,0 @@
-/**
- * AI 智能生成标题
- * 输入框 + 生成按钮 + 结果列表 + 加载状态
- */
-import React from "react"
-import { LoadingOutlined } from "@ant-design/icons"
-import AiTitleCard from "./AiTitleCard"
-
-interface AiTitleItem {
-  title: string
-  highlight: string
-  style: "catchy" | "emotional" | "informative"
-}
-
-interface AiTitleGeneratorProps {
-  inputValue: string
-  onInputChange: (value: string) => void
-  generating: boolean
-  onGenerate: () => void
-  results: AiTitleItem[]
-  hasGenerated: boolean
-  onSelect: (title: string) => void
-  selectedTitle: string
-  onRefresh: () => void
-}
-
-const AiTitleGenerator: React.FC<AiTitleGeneratorProps> = ({
-  inputValue,
-  onInputChange,
-  generating,
-  onGenerate,
-  results,
-  hasGenerated,
-  onSelect,
-  selectedTitle,
-  onRefresh,
-}) => {
-  return (
-    <div className="xx-ai-title-section">
-      <div className="xx-ai-title-header">
-        <span className="xx-ai-title-label">✨ AI 智能生成标题</span>
-      </div>
-      <div className="xx-ai-title-input-row">
-        <input
-          className="xx-ai-title-input"
-          placeholder="输入视频内容描述或关键词，如：职场成长、副业赚钱…"
-          value={inputValue}
-          onChange={(e) => onInputChange(e.target.value)}
-          onKeyDown={(e) => {
-            if (e.key === "Enter") onGenerate()
-          }}
-        />
-        <button
-          type="button"
-          className="xx-btn xx-btn-primary"
-          onClick={onGenerate}
-          disabled={generating || !inputValue.trim()}
-        >
-          {generating ? (
-            <>
-              <LoadingOutlined style={{ marginRight: 6 }} />
-              生成中
-            </>
-          ) : (
-            "生成标题"
-          )}
-        </button>
-      </div>
-
-      {/* 生成结果 */}
-      {hasGenerated && !generating && results.length > 0 && (
-        <div className="xx-ai-title-results">
-          <div className="xx-ai-title-results-header">
-            <span className="xx-ai-title-results-count">为你生成 {results.length} 个标题</span>
-            <button type="button" className="xx-link-btn" onClick={onRefresh} disabled={generating}>
-              🔄 换一批
-            </button>
-          </div>
-          <div className="xx-ai-title-list">
-            {results.map((item, idx) => (
-              <AiTitleCard
-                key={idx}
-                title={item.title}
-                highlight={item.highlight}
-                style={item.style}
-                selected={selectedTitle === item.title}
-                onClick={() => onSelect(item.title)}
-              />
-            ))}
-          </div>
-        </div>
-      )}
-
-      {/* 生成中 */}
-      {generating && (
-        <div className="xx-ai-title-loading">
-          <LoadingOutlined style={{ color: "var(--primary-color)", marginRight: 8 }} />
-          AI 正在为你创作标题…
-        </div>
-      )}
-    </div>
-  )
-}
-
-export default AiTitleGenerator
@@ -12,16 +12,20 @@
 */
 import React, { useEffect, useRef } from "react"
 import type { TitleSettings } from "../../types"
-import { getFontFamily } from "../../constants"
+import { getFontFamily } from "@/components/title/constants"

 interface Props {
  settings: TitleSettings
  width?: number
  sampleText?: string
-  /** 背景（预览用，默认深色渐变模拟视频底） */
+  /** 背景（预览用，默认深色渐变模拟视频底），transparent=true 时忽略 */
  background?: string
-  /** 高度（可选，默认 width/2） */
+  /** 高度（可选，默认按 portrait 选比例） */
  height?: number
+  /** 透明背景（卡片/编辑器预览叠加在图片上时使用） */
+  transparent?: boolean
+  /** 纵向竖屏预览（9:16），true 时 aspect=16/9 适配手机视频比例 */
+  portrait?: boolean
 }

 /** 按 maxCharsPerLine 自动换行 */
@@ -56,9 +60,11 @@ const TitleMiniPreview: React.FC<Props> = ({
  sampleText,
  background = "linear-gradient(135deg,#1f2937,#111827)",
  height,
+  transparent = false,
+  portrait = false,
 }) => {
  const canvasRef = useRef<HTMLCanvasElement>(null)
-  const h = height ?? Math.round(width / 1.8)
+  const h = height ?? Math.round(width * (portrait ? 16 / 9 : 1 / 1.8))
  const text = (sampleText || settings.title || "预览标题").trim() || "预览标题"

  useEffect(() => {
@@ -74,9 +80,11 @@ const TitleMiniPreview: React.FC<Props> = ({
    ctx.scale(dpr, dpr)
    ctx.clearRect(0, 0, width, h)

-    // 背景
-    ctx.fillStyle = "#111827"
-    ctx.fillRect(0, 0, width, h)
+    // 背景（transparent 时跳过，用于叠加在图片上）
+    if (!transparent) {
+      ctx.fillStyle = "#111827"
+      ctx.fillRect(0, 0, width, h)
+    }

    // 分辨率缩放：以 360 宽为基准（对应 720p 的一半）
    const scale = width / 360
@@ -121,7 +129,8 @@ const TitleMiniPreview: React.FC<Props> = ({
      startY = h / 2 - totalH / 2 + size / 2
    } else {
      // bottom
-      startY = h - totalH - r(16) + size / 2
+      const botMargin = portrait ? r(24) : r(16)
+      startY = h - totalH - botMargin + size / 2
    }
    let centerX = width / 2
    if (settings.position === "custom" && settings.posX != null) {
@@ -181,7 +190,7 @@ const TitleMiniPreview: React.FC<Props> = ({
    ctx.shadowBlur = prevShadow.b
    ctx.shadowOffsetX = prevShadow.ox
    ctx.shadowOffsetY = prevShadow.oy
-  }, [settings, width, h, text])
+  }, [settings, width, h, text, transparent, portrait, background])

  return (
    <canvas
@@ -190,7 +199,7 @@ const TitleMiniPreview: React.FC<Props> = ({
        borderRadius: 6,
        display: "block",
        maxWidth: "100%",
-        background,
+        background: transparent ? "transparent" : background,
      }}
    />
  )
@@ -4,7 +4,7 @@
 * 避免 -webkit-text-stroke 在 Chromium 中吞掉填充色的问题
 */
 import React from "react"
-import { getFontFamily } from "../../constants"
+import { getFontFamily } from "@/components/title/constants"

 interface TitlePresetItem {
  key: string
@@ -442,3 +442,17 @@
  font-size: 12px !important;
  padding: 6px 8px !important;
 }
+
+/* 标题模板入口按钮（#2003） */
+.ts-template-btn {
+  border: none;
+  background: transparent;
+  color: var(--primary-color, #7c3aed);
+  font-size: 12px;
+  cursor: pointer;
+  padding: 2px 0;
+  font-weight: 500;
+}
+.ts-template-btn:hover {
+  text-decoration: underline;
+}
@@ -54,39 +54,8 @@ export const POSITION_OPTIONS = [
  { value: "custom", label: "自定义" },
 ]

-/* ── 标题字体选项（#2001：新增 4 款爆款字体） ── */
-export const FONT_OPTIONS = [
-  "优设标题黑",
-  "阿里普惠体Bold",
-  "抖音美好体",
-  "思源黑体Heavy",
-  "思源黑体",
-  "思源宋体",
-  "苹方",
-  "微软雅黑",
-  "楷体",
-]
-
-/* ── 标题字体 CSS font-family 映射（中文显示名 → 浏览器可识别的字体栈） ── */
-export const FONT_FAMILY_MAP: Record<string, string> = {
-  优设标题黑:
-    '"YouSheBiaoTiHei","YouShe Title Black","Source Han Sans SC Heavy","Noto Sans SC","PingFang SC",sans-serif',
-  阿里普惠体Bold:
-    '"Alibaba PuHuiTi Bold","Alibaba PuHuiTi","Source Han Sans SC","PingFang SC",sans-serif',
-  抖音美好体: '"Douyin Sans","DouyinSansBold","Source Han Sans SC Heavy","PingFang SC",sans-serif',
-  思源黑体Heavy:
-    '"Source Han Sans SC Heavy","Noto Sans SC Heavy","Source Han Sans CN Heavy","PingFang SC",sans-serif',
-  思源黑体: '"Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif',
-  思源宋体: '"Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", serif',
-  苹方: '"PingFang SC", -apple-system, "Helvetica Neue", sans-serif',
-  PingFang: '"PingFang SC", -apple-system, "Helvetica Neue", sans-serif',
-  微软雅黑: '"Microsoft YaHei", "PingFang SC", sans-serif',
-  楷体: '"KaiTi", "STKaiti", "DFKai-SB", serif',
-}
-
-export function getFontFamily(font: string): string {
-  return FONT_FAMILY_MAP[font] || FONT_FAMILY_MAP["思源黑体"]
-}
+/* ── 标题字体：统一使用公共层定义（#2001） ── */
+export { getFontFamily } from "@/components/title/constants"

 /* ── 标题样式预设 ── */
 export const TITLE_PRESETS = [
@@ -566,31 +535,6 @@ export const SMART_MATCH_REASONS = [
  "人物表情生动",
 ]

-/* ── AI 标题模板 ── */
-export const AI_TITLE_TEMPLATES: Record<string, string[]> = {
-  catchy: [
-    "震惊！{topic}居然还能这样操作",
-    "99%的人都不知道的{topic}秘诀",
-    "{topic}的终极指南，看完直接封神",
-    "别再走弯路了！{topic}看这一篇就够",
-    "一个视频讲透{topic}，建议收藏",
-  ],
-  emotional: [
-    "致每一个在{topic}路上坚持的人",
-    "关于{topic}，我想说句真心话",
-    "{topic}背后的故事，看完沉默了",
-    "为什么我劝你一定要了解{topic}",
-    "这才是{topic}最动人的样子",
-  ],
-  informative: [
-    "{topic}完整科普：从入门到精通",
-    "深度解析{topic}的核心原理",
-    "{topic}行业趋势报告｜2026最新版",
-    "三分钟带你全面了解{topic}",
-    "{topic}常见问题与解决方案汇总",
-  ],
-}
-
 /* ── 默认封面设置 ── */
 export const DEFAULT_COVER_SETTINGS: CoverConfig = {
  enabled: true,
@@ -2880,27 +2880,6 @@
   Issue #1677 多视频批量生成
   ================================================================ */

-/* ── Step4 布局对调：左侧预览大区域，右侧标题边栏 ── */
-.xx-generate-layout.step4-layout {
-  grid-template-columns: 1fr 380px;
-  align-items: start;
-}
-
-.xx-generate-preview-col {
-  min-width: 0;
-  position: sticky;
-  top: 16px;
-}
-
-.xx-generate-preview-col .xx-form-section {
-  margin: 0;
-}
-
-.xx-title-sidebar {
-  max-height: calc(100vh - 140px);
-  overflow-y: auto;
-}
-
 /* ── 数量选择弹窗 ── */
 .xx-modal-mask {
  position: fixed;
@@ -3240,135 +3219,6 @@
  border-radius: 4px;
 }

-/* ── 响应式：窄屏 Step4 回退单列 ── */
-@media (max-width: 960px) {
-  .xx-generate-layout.step4-layout {
-    grid-template-columns: 1fr;
-  }
-
-  .xx-generate-preview-col {
-    position: static;
-  }
-
-  .xx-title-sidebar {
-    max-height: none;
-  }
-}
-
-/* ============================================================
-   批量前端 Canvas 预览网格（Issue #1677 修正：纯前端实时预览）
-   ============================================================ */
-/* #1741：卡片整体缩小至约 3/5——宽屏排 3 列（卡片限宽 220px 居中），
-   中屏自动回退 2 列，窄屏 1 列（见下方媒体查询）；卡片保持 9:16 比例不变形 */
-.xx-canvas-grid {
-  display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(160px, 180px));
-  justify-content: center;
-  gap: 14px;
-}
-
-/* 窄屏单列时卡片限宽居中，避免 1fr 拉伸导致卡片过高 */
-@media (max-width: 960px) {
-  .xx-canvas-grid {
-    grid-template-columns: minmax(0, 320px);
-  }
-}
-
-.xx-canvas-grid-card {
-  position: relative;
-  border: 2px solid var(--border-primary, #e2e8f0);
-  border-radius: 12px;
-  overflow: hidden;
-  background: transparent;
-  transition: border-color 0.2s ease;
-  min-width: 0;
-}
-
-.xx-canvas-grid-card.selected {
-  border-color: var(--primary-color, #1677ff);
-  box-shadow: 0 0 0 2px rgba(22, 119, 255, 0.15);
-}
-
-.xx-canvas-grid-card-bar {
-  position: relative;
-  z-index: 2;
-  display: flex;
-  align-items: center;
-  padding: 6px 10px;
-  background: var(--bg-surface, #fff);
-  border-bottom: 1px solid var(--border-primary, #e2e8f0);
-}
-
-.xx-canvas-grid-check {
-  display: inline-flex;
-  align-items: center;
-  gap: 6px;
-  font-size: 13px;
-  font-weight: 500;
-  color: var(--text-primary, #1a1a1a);
-  cursor: pointer;
-  user-select: none;
-}
-
-.xx-canvas-grid-check input[type="checkbox"] {
-  width: 15px;
-  height: 15px;
-  cursor: pointer;
-  accent-color: var(--primary-color, #1677ff);
-}
-
-/* #1750：批量变体片段加载/错误占位（9:16 竖屏比例，与播放器卡片同尺寸防塌陷） */
-.xx-variant-clips-status {
-  position: relative;
-  width: 100%;
-  aspect-ratio: 9 / 16;
-  max-height: 70vh;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  gap: 4px;
-  font-size: 13px;
-  color: rgba(255, 255, 255, 0.75);
-  background: #0a0a0a;
-  border-radius: 16px;
-  overflow: hidden;
-  box-shadow:
-    0 4px 6px -1px rgba(0, 0, 0, 0.3),
-    0 20px 50px -12px rgba(0, 0, 0, 0.5),
-    inset 0 0 0 1px rgba(255, 255, 255, 0.06);
-}
-
-.xx-variant-clips-status .anticon {
-  font-size: 22px;
-}
-
-.xx-variant-clips-error-text {
-  color: rgba(255, 255, 255, 0.85);
-  font-size: 13px;
-}
-
-/* ============================================================
-   批量标题：AI 一键生成行（Issue #1677）
-   ============================================================ */
-.xx-batch-ai-row {
-  display: flex;
-  flex-wrap: wrap;
-  align-items: center;
-  gap: 8px;
-  padding: 10px 12px;
-  margin-bottom: 12px;
-  background: var(--bg-secondary, #f7f8fa);
-  border: 1px dashed var(--border-primary, #d9d9d9);
-  border-radius: 10px;
-}
-
-.xx-batch-ai-row .xx-form-field {
-  margin: 0;
-  flex: 1;
-  min-width: 140px;
-}
-
 .xx-batch-titles {
  display: flex;
  flex-direction: column;
@@ -1,155 +0,0 @@
-/**
- * 预览素材加载 Hook
- * 根据选中的素材 ID 列表，逐个获取素材详情（含 file_url、duration 等）
- * 供前端预览播放器使用
- *
- * 注意：后端没有批量接口（/assets/batch 返回 405），
- * 因此直接使用 Promise.allSettled 并发请求单个 GET /assets/{id}
- */
-import { useState, useEffect, useCallback, useRef } from "react"
-import type { AssetItem } from "@/api/assets"
-import type { AxiosResponse } from "axios"
-
-/**
- * 通过 ID 列表逐个获取素材（并发）
- * 使用 Promise.allSettled 确保单个失败不影响整体
- */
-async function fetchAssetsByIds(ids: string[]): Promise<AssetItem[]> {
-  // 防御：过滤空值/undefined/非字符串 id，避免发出 /assets/undefined 请求
-  const validIds = ids.filter((id): id is string => typeof id === "string" && id.length > 0)
-  if (!validIds.length) return []
-
-  try {
-    const { default: apiClient } = await import("@/api/client")
-    const results = await Promise.allSettled(
-      validIds.map((id) => apiClient.get<AssetItem>(`/assets/${id}`)),
-    )
-    return results
-      .filter(
-        (r): r is PromiseFulfilledResult<AxiosResponse<AssetItem>> =>
-          r.status === "fulfilled" && !!r.value?.data,
-      )
-      .map((r) => r.value.data)
-  } catch {
-    return []
-  }
-}
-
-interface UsePreviewAssetsReturn {
-  /** 加载后的素材列表 */
-  assets: AssetItem[]
-  /** 是否正在加载 */
-  loading: boolean
-  /** 是否已就绪（加载完成） */
-  ready: boolean
-  /** 手动触发重新加载 */
-  reload: () => void
-  /**
-   * 差集补拉（#1750）：后端变体计划 clips 可能引用不在用户已选列表中的素材
-   * （跨素材库选片/素材池扩展），发现 assets 中缺失的 asset_id 时补拉详情并合并，
-   * 保证预览播放器拿得到素材文件 URL，而不是静默丢片段。
-   */
-  ensureAssets: (ids: string[]) => Promise<void>
-}
-
-/**
- * usePreviewAssets — 加载选中素材的视频文件信息
- */
-export function usePreviewAssets(assetIds: string[], enabled: boolean): UsePreviewAssetsReturn {
-  const [assets, setAssets] = useState<AssetItem[]>([])
-  const [loading, setLoading] = useState(false)
-  const [ready, setReady] = useState(false)
-  const requestIdRef = useRef(0)
-
-  // 稳定化 assetIds：只有内容真正变化时才更新引用
-  const stableAssetIds = useStableArray(assetIds)
-
-  const load = useCallback(async () => {
-    const validIds = stableAssetIds.filter(
-      (id): id is string => typeof id === "string" && id.length > 0,
-    )
-    if (!validIds.length || !enabled) {
-      setAssets([])
-      setReady(false)
-      return
-    }
-
-    const thisRequestId = ++requestIdRef.current
-    setLoading(true)
-    setReady(false)
-
-    try {
-      const result = await fetchAssetsByIds(validIds)
-      // 防止竞态：只保留最新请求的结果
-      if (requestIdRef.current === thisRequestId) {
-        setAssets(result)
-        setReady(result.length > 0)
-      }
-    } catch {
-      if (requestIdRef.current === thisRequestId) {
-        setAssets([])
-        setReady(false)
-      }
-    } finally {
-      if (requestIdRef.current === thisRequestId) {
-        setLoading(false)
-      }
-    }
-  }, [stableAssetIds, enabled])
-
-  // 补拉用独立序号：不干扰主 load 的竞态守卫
-  const ensureSeqRef = useRef(0)
-  const assetsRef = useRef<AssetItem[]>([])
-  useEffect(() => {
-    assetsRef.current = assets
-  }, [assets])
-
-  /**
-   * 差集补拉（#1750）：变体计划 clips 引用的 asset_id 不在当前素材列表时，
-   * 补拉素材详情并去重合并（不静默丢片段、不用假数据冒充）。
-   */
-  const ensureAssets = useCallback(async (ids: string[]) => {
-    const validIds = ids.filter((id): id is string => typeof id === "string" && id.length > 0)
-    if (!validIds.length) return
-    const seq = ++ensureSeqRef.current
-    const missing = Array.from(new Set(validIds)).filter(
-      (id) => !assetsRef.current.some((a) => a.id === id),
-    )
-    if (!missing.length) return
-    const fetched = await fetchAssetsByIds(missing)
-    if (seq !== ensureSeqRef.current || !fetched.length) return
-    const existing = new Set(assetsRef.current.map((a) => a.id))
-    const additions = fetched.filter((a) => !existing.has(a.id))
-    if (!additions.length) return
-    const merged = [...assetsRef.current, ...additions]
-    assetsRef.current = merged
-    setAssets(merged)
-    setReady(merged.length > 0)
-  }, [])
-
-  useEffect(() => {
-    load()
-  }, [load])
-
-  return { assets, loading, ready, reload: load, ensureAssets }
-}
-
-/**
- * useStableArray — 数组内容稳定化 Hook
- * 只有数组内容真正变化时才返回新的引用，避免父组件 re-render 导致的无效更新
- */
-function useStableArray<T>(array: T[]): T[] {
-  const ref = useRef<T[]>(array)
-
-  // 比较数组内容是否真正变化
-  const hasChanged =
-    array.length !== ref.current.length || array.some((item, index) => item !== ref.current[index])
-
-  if (hasChanged) {
-    ref.current = array
-  }
-
-  return ref.current
-}
-
-export default usePreviewAssets
@@ -1,131 +0,0 @@
-import { useCallback, useEffect, useRef } from "react"
-
-interface UsePreviewAudioOptions {
-  voiceAudioUrl: string | undefined
-  voiceDurationHint: number | undefined
-  muted: boolean
-  isPlaying: boolean
-  currentTime: number
-  onVoiceDurationChange: (d: number) => void
-  onEnded: () => void
-}
-
-interface UsePreviewAudioReturn {
-  seekTo: (time: number) => void
-  ensurePlayingAt: (time: number) => void
-  pause: () => void
-}
-
-/**
- * 配音音频管理 hook：加载配音、loadedmetadata 自测时长、play/pause 同步、
- * ended 事件回调、seek 同步、末帧冻结期间续播。
- */
-export function usePreviewAudio({
-  voiceAudioUrl,
-  voiceDurationHint,
-  muted,
-  isPlaying,
-  currentTime,
-  onVoiceDurationChange,
-  onEnded,
-}: UsePreviewAudioOptions): UsePreviewAudioReturn {
-  const audioRef = useRef<HTMLAudioElement | null>(null)
-  const prevIsPlayingRef = useRef(false)
-
-  // 外部 hint 初始化（自测值前的兜底）
-  useEffect(() => {
-    if (voiceDurationHint && voiceDurationHint > 0) {
-      onVoiceDurationChange(voiceDurationHint)
-    }
-  }, [voiceDurationHint, onVoiceDurationChange])
-
-  // 创建/替换 audio 元素，加载 metadata 时自测时长并监听 ended
-  useEffect(() => {
-    if (!voiceAudioUrl) {
-      if (audioRef.current) {
-        audioRef.current.pause()
-        audioRef.current.src = ""
-        audioRef.current = null
-      }
-      return
-    }
-    if (!audioRef.current) {
-      audioRef.current = new Audio()
-      audioRef.current.preload = "auto"
-    }
-    if (audioRef.current.src !== voiceAudioUrl) {
-      audioRef.current.src = voiceAudioUrl
-    }
-    audioRef.current.muted = muted
-
-    const audio = audioRef.current
-    const onLoaded = () => {
-      if (audio.duration && isFinite(audio.duration) && audio.duration > 0) {
-        onVoiceDurationChange(audio.duration)
-      }
-    }
-    const onEndedHandler = () => onEnded()
-    audio.addEventListener("loadedmetadata", onLoaded)
-    audio.addEventListener("ended", onEndedHandler)
-    return () => {
-      audio.removeEventListener("loadedmetadata", onLoaded)
-      audio.removeEventListener("ended", onEndedHandler)
-    }
-  }, [voiceAudioUrl, muted, onVoiceDurationChange, onEnded])
-
-  // mute 变化即时同步
-  useEffect(() => {
-    if (audioRef.current) audioRef.current.muted = muted
-  }, [muted])
-
-  // 播放/暂停同步（跟随视频 isPlaying）
-  useEffect(() => {
-    const audio = audioRef.current
-    if (!audio || !audio.src) return
-    if (isPlaying && !prevIsPlayingRef.current) {
-      if (Math.abs(audio.currentTime - currentTime) > 0.3) {
-        try {
-          audio.currentTime = currentTime
-        } catch {
-          /* ignore */
-        }
-      }
-      audio.play().catch(() => {})
-    } else if (!isPlaying && prevIsPlayingRef.current) {
-      audio.pause()
-    }
-    prevIsPlayingRef.current = isPlaying
-  }, [isPlaying, currentTime])
-
-  const seekTo = useCallback((time: number) => {
-    const audio = audioRef.current
-    if (audio && audio.src) {
-      try {
-        audio.currentTime = time
-      } catch {
-        /* ignore */
-      }
-    }
-  }, [])
-
-  const ensurePlayingAt = useCallback((time: number) => {
-    const audio = audioRef.current
-    if (!audio || !audio.src) return
-    try {
-      if (Math.abs(audio.currentTime - time) > 0.5) audio.currentTime = time
-      if (audio.paused) audio.play().catch(() => {})
-    } catch {
-      /* ignore */
-    }
-  }, [])
-
-  const pause = useCallback(() => {
-    try {
-      audioRef.current?.pause()
-    } catch {
-      /* ignore */
-    }
-  }, [])
-
-  return { seekTo, ensurePlayingAt, pause }
-}
@@ -1,384 +0,0 @@
-/**
- * 素材片段调度器 Hook（多 video 元素方案 v3）
- *
- * v3 修复：
- * - 所有动态状态存入 ref，tick 为稳定函数，彻底消除 RAF 闭包陷阱
- * - 片段切换时先启动下一个 video 再切可见性，消除冻屏间隔
- * - 进度更新 200ms 节流
- */
-
-import { useState, useRef, useCallback, useEffect, useMemo } from "react"
-
-export interface PlaybackSegment {
-  assetId: string
-  videoUrl: string
-  startTime: number
-  endTime: number
-  order: number
-  /** #1754 兜底：配音时长≠clips 总时长时按比例调速，1.0 = 原速 */
-  playbackRate?: number
-}
-
-export interface SegmentSchedulerState {
-  isPlaying: boolean
-  currentTime: number
-  totalDuration: number
-  currentSegmentIndex: number
-  segmentLocalTime: number
-  isEnded: boolean
-  canPlay: boolean
-  play: () => void
-  pause: () => void
-  togglePlayPause: () => void
-  seekTo: (time: number) => void
-  videoRefs: React.MutableRefObject<(HTMLVideoElement | null)[]>
-}
-
-function findSegmentAtTime(
-  segments: PlaybackSegment[],
-  globalTime: number,
-): { index: number; localTime: number } {
-  let accumulated = 0
-  for (let i = 0; i < segments.length; i++) {
-    const seg = segments[i]
-    const segDuration = seg.endTime - seg.startTime
-    if (globalTime < accumulated + segDuration || i === segments.length - 1) {
-      return { index: i, localTime: seg.startTime + (globalTime - accumulated) }
-    }
-    accumulated += segDuration
-  }
-  return { index: segments.length - 1, localTime: segments[segments.length - 1].endTime }
-}
-
-function buildTimeline(segments: PlaybackSegment[]): number[] {
-  const starts: number[] = []
-  let acc = 0
-  for (const seg of segments) {
-    starts.push(acc)
-    acc += seg.endTime - seg.startTime
-  }
-  return starts
-}
-
-export function useSegmentScheduler(segments: PlaybackSegment[]): SegmentSchedulerState {
-  const videoRefs = useRef<(HTMLVideoElement | null)[]>([])
-  const [isPlaying, setIsPlaying] = useState(false)
-  const [currentTime, setCurrentTime] = useState(0)
-  const [currentSegmentIndex, setCurrentSegmentIndex] = useState(0)
-  const [isEnded, setIsEnded] = useState(false)
-  const rafRef = useRef(0)
-  const isSeekingRef = useRef(false)
-  const lastTimeUpdateRef = useRef(0)
-
-  // 所有动态值存入 ref，tick 始终读取最新值，不依赖闭包
-  const segIdxRef = useRef(0)
-  const segmentsRef = useRef(segments)
-  const timelineStartsData = useMemo(() => buildTimeline(segments), [segments])
-  const totalDurationData = useMemo(
-    () => segments.reduce((sum, seg) => sum + (seg.endTime - seg.startTime), 0),
-    [segments],
-  )
-  const timelineStartsRef = useRef(timelineStartsData)
-  const totalDurationRef = useRef(totalDurationData)
-  const isPlayingRef = useRef(false)
-
-  segmentsRef.current = segments
-  timelineStartsRef.current = timelineStartsData
-  totalDurationRef.current = totalDurationData
-
-  const canPlay = segments.length > 0
-
-  useEffect(() => {
-    segIdxRef.current = currentSegmentIndex
-  }, [currentSegmentIndex])
-
-  useEffect(() => {
-    isPlayingRef.current = isPlaying
-  }, [isPlaying])
-
-  const waitForReady = useCallback((video: HTMLVideoElement, timeout = 3000): Promise<void> => {
-    if (video.readyState >= 3) return Promise.resolve()
-    return new Promise((resolve) => {
-      const onCanPlay = () => {
-        video.removeEventListener("canplay", onCanPlay)
-        clearTimeout(timer)
-        resolve()
-      }
-      const timer = setTimeout(() => {
-        video.removeEventListener("canplay", onCanPlay)
-        resolve()
-      }, timeout)
-      video.addEventListener("canplay", onCanPlay)
-    })
-  }, [])
-
-  const switchToSegment = useCallback(
-    async (index: number, seekToLocalTime?: number) => {
-      const segs = segmentsRef.current
-      const video = videoRefs.current[index]
-      if (!video || index >= segs.length) return
-
-      const seg = segs[index]
-      const localTime = seekToLocalTime ?? seg.startTime
-      const oldIdx = segIdxRef.current
-      const oldVideo = videoRefs.current[oldIdx]
-
-      if (oldVideo && oldVideo !== video) oldVideo.pause()
-
-      if (!video.src && seg.videoUrl) {
-        video.src = seg.videoUrl
-        video.load()
-      }
-
-      if (Math.abs(video.currentTime - localTime) > 0.05) {
-        video.currentTime = localTime
-      }
-      // #1754：按比例调速（配音时长≠clips 总时长时的前端兜底）
-      const rate = seg.playbackRate || 1
-      if (Math.abs(video.playbackRate - rate) > 0.01) {
-        video.playbackRate = rate
-      }
-
-      segIdxRef.current = index
-      setCurrentSegmentIndex(index)
-
-      await waitForReady(video)
-    },
-    [waitForReady],
-  )
-
-  // 稳定的 tick 函数，空依赖，所有值从 ref 读取
-  const tick = useCallback(() => {
-    const segs = segmentsRef.current
-    const idx = segIdxRef.current
-    const video = videoRefs.current[idx]
-
-    if (!video || isSeekingRef.current) {
-      rafRef.current = requestAnimationFrame(tick)
-      return
-    }
-
-    const seg = segs[idx]
-    if (!seg) return
-
-    // 预加载下一个片段
-    const nextIndex = idx + 1
-    if (nextIndex < segs.length) {
-      const nextVideo = videoRefs.current[nextIndex]
-      if (nextVideo) {
-        const timeToEnd = seg.endTime - video.currentTime
-        if (timeToEnd <= 2 && nextVideo.readyState < 3) {
-          const nextSeg = segs[nextIndex]
-          if (Math.abs(nextVideo.currentTime - nextSeg.startTime) > 0.5) {
-            nextVideo.currentTime = nextSeg.startTime
-          }
-        }
-      }
-    }
-
-    // 检测片段边界
-    if (video.currentTime >= seg.endTime - 0.1) {
-      if (nextIndex < segs.length) {
-        const nextVideo = videoRefs.current[nextIndex]
-        const nextSeg = segs[nextIndex]
-        const accumulatedTime =
-          (timelineStartsRef.current[idx] || 0) + (seg.endTime - seg.startTime)
-
-        if (nextVideo) {
-          if (Math.abs(nextVideo.currentTime - nextSeg.startTime) > 0.1) {
-            nextVideo.currentTime = nextSeg.startTime
-          }
-          // 先启动下一个视频（muted，可安全同时播放）
-          nextVideo
-            .play()
-            .catch((e) => console.warn("[useSegmentScheduler] next segment play failed:", e))
-        }
-
-        // 立即切换可见性
-        segIdxRef.current = nextIndex
-        setCurrentSegmentIndex(nextIndex)
-        setCurrentTime(accumulatedTime)
-        lastTimeUpdateRef.current = 0
-        setIsPlaying(true)
-
-        // 下一帧暂停旧视频（让新视频先渲染，避免冻屏）
-        const oldVideo = video
-        requestAnimationFrame(() => {
-          oldVideo.pause()
-        })
-
-        rafRef.current = requestAnimationFrame(tick)
-        return
-      } else {
-        video.pause()
-        setIsPlaying(false)
-        setIsEnded(true)
-        setCurrentTime(totalDurationRef.current)
-        return
-      }
-    }
-
-    const globalTime = (timelineStartsRef.current[idx] || 0) + (video.currentTime - seg.startTime)
-    const now = performance.now()
-    if (now - lastTimeUpdateRef.current >= 200) {
-      lastTimeUpdateRef.current = now
-      setCurrentTime(Math.max(0, Math.min(globalTime, totalDurationRef.current)))
-    }
-
-    rafRef.current = requestAnimationFrame(tick)
-  }, [])
-
-  const play = useCallback(async () => {
-    if (!canPlay) return
-    setIsEnded(false)
-    const idx = segIdxRef.current
-    const video = videoRefs.current[idx]
-    if (!video) return
-
-    if (idx === 0 && video.readyState < 2) {
-      if (!video.src && segmentsRef.current[0]?.videoUrl) {
-        video.src = segmentsRef.current[0].videoUrl
-        video.load()
-      }
-      await waitForReady(video)
-    }
-
-    // 播放前 seek 到片段起始时间，确保 progress 计算正确
-    const seg = segmentsRef.current[idx]
-    if (seg && Math.abs(video.currentTime - seg.startTime) > 0.1) {
-      video.currentTime = seg.startTime
-    }
-
-    // #1754：调速
-    const rate = seg?.playbackRate || 1
-    if (Math.abs(video.playbackRate - rate) > 0.01) {
-      video.playbackRate = rate
-    }
-
-    try {
-      await video.play()
-      setIsPlaying(true)
-      cancelAnimationFrame(rafRef.current)
-      rafRef.current = requestAnimationFrame(tick)
-    } catch (err) {
-      console.warn("[useSegmentScheduler] 播放失败:", err)
-    }
-  }, [canPlay, waitForReady, tick])
-
-  const pause = useCallback(() => {
-    const video = videoRefs.current[segIdxRef.current]
-    if (video) video.pause()
-    setIsPlaying(false)
-    cancelAnimationFrame(rafRef.current)
-  }, [])
-
-  const togglePlayPause = useCallback(() => {
-    if (isPlayingRef.current) {
-      pause()
-    } else {
-      if (isEnded) {
-        setIsEnded(false)
-        lastTimeUpdateRef.current = 0
-        const firstVideo = videoRefs.current[0]
-        if (firstVideo) {
-          videoRefs.current.forEach((v, i) => {
-            if (v && i !== 0) v.pause()
-          })
-          firstVideo.currentTime = segmentsRef.current[0]?.startTime || 0
-          segIdxRef.current = 0
-          setCurrentSegmentIndex(0)
-          setCurrentTime(0)
-          firstVideo
-            .play()
-            .then(() => {
-              setIsPlaying(true)
-              cancelAnimationFrame(rafRef.current)
-              rafRef.current = requestAnimationFrame(tick)
-            })
-            .catch((e) => console.warn("[useSegmentScheduler] restart failed:", e))
-        }
-      } else {
-        play()
-      }
-    }
-  }, [isEnded, pause, play, tick])
-
-  const seekTo = useCallback(
-    async (time: number) => {
-      if (!canPlay) return
-      const clampedTime = Math.max(0, Math.min(time, totalDurationRef.current))
-      const { index, localTime } = findSegmentAtTime(segmentsRef.current, clampedTime)
-
-      isSeekingRef.current = true
-      cancelAnimationFrame(rafRef.current)
-
-      if (index !== segIdxRef.current) {
-        await switchToSegment(index, localTime)
-      } else {
-        const video = videoRefs.current[index]
-        if (video) video.currentTime = localTime
-      }
-
-      setCurrentTime(clampedTime)
-      setIsEnded(false)
-      lastTimeUpdateRef.current = 0
-
-      if (isPlayingRef.current) {
-        const video = videoRefs.current[index]
-        if (video) {
-          video.play().catch(() => {})
-        }
-        rafRef.current = requestAnimationFrame(tick)
-      }
-
-      setTimeout(() => {
-        isSeekingRef.current = false
-      }, 200)
-    },
-    [canPlay, switchToSegment, tick],
-  )
-
-  useEffect(() => {
-    videoRefs.current = videoRefs.current.slice(0, segments.length)
-    while (videoRefs.current.length < segments.length) {
-      videoRefs.current.push(null)
-    }
-  }, [segments])
-
-  useEffect(() => {
-    return () => {
-      cancelAnimationFrame(rafRef.current)
-    }
-  }, [])
-
-  useEffect(() => {
-    cancelAnimationFrame(rafRef.current)
-    segIdxRef.current = 0
-    setIsPlaying(false)
-    setCurrentTime(0)
-    setCurrentSegmentIndex(0)
-    setIsEnded(false)
-  }, [segments])
-
-  const currentSegment = segments[currentSegmentIndex] || null
-  const segmentLocalTime = currentSegment
-    ? currentTime - (timelineStartsRef.current[currentSegmentIndex] || 0) + currentSegment.startTime
-    : 0
-
-  return {
-    isPlaying,
-    currentTime,
-    totalDuration: totalDurationData,
-    currentSegmentIndex,
-    segmentLocalTime,
-    isEnded,
-    canPlay,
-    play,
-    pause,
-    togglePlayPause,
-    seekTo,
-    videoRefs,
-  }
-}
-
-export default useSegmentScheduler
@@ -1,9 +1,8 @@
-import { useEffect, useRef } from "react"
+import { useEffect } from "react"
 import { useQuery } from "@tanstack/react-query"
 // #1894: 标题候选从文案库 scripts[].title 获取，不再调用废弃的 /api/titles
 import { getScripts } from "@/api/scripts"
 import type { TitleSettings } from "../../types"
-import { useAiTitleGenerator } from "./useAiTitleGenerator"
 import { useTitleStyleUpdaters } from "./useTitleStyleUpdaters"
 import { useDraftAutoSave } from "../useDraftAutoSave"

@@ -16,7 +15,7 @@ interface UseStep4TitleProps {

 /**
 * Step 4 标题设置 Hook
- * 封装 AI 标题生成、标题样式设置等逻辑
+ * 封装标题样式设置等逻辑
 */
 export function useStep4Title({
  titleSettings,
@@ -34,26 +33,9 @@ export function useStep4Title({
    staleTime: 30_000,
  })

-  // AI 标题生成
-  const {
-    aiTitleInput,
-    setAiTitleInput,
-    aiTitleGenerating,
-    aiTitleResults,
-    hasGeneratedTitles,
-    handleGenerateAiTitles,
-    handleSelectAiTitle,
-    handleRefreshAiTitles,
-    autoGenerateTitle,
-  } = useAiTitleGenerator({ titleSettings, onTitleSettingsChange })
-
  // 样式更新
  const styleUpdaters = useTitleStyleUpdaters({ titleSettings, onTitleSettingsChange })

-  // 追踪 AI 自动选择开关的上一次值 & 是否首次挂载
-  const prevAiAutoSelect = useRef(titleSettings.aiAutoSelect)
-  const isFirstMount = useRef(true)
-
  /* ── Step4 标题内容/样式变化后自动保存草稿（防抖 800ms，失败静默） ── */
  const { scheduleSave: scheduleTitleSave } = useDraftAutoSave(selectedTemplate)
  useEffect(() => {
@@ -86,40 +68,12 @@ export function useStep4Title({
    scheduleTitleSave,
  ])

-  // 当 AI 自动选择开关打开时，自动生成/选择一个标题填入
-  // 首次挂载时如果开关已经是 true 且无标题，也需要触发
-  useEffect(() => {
-    if (isFirstMount.current) {
-      isFirstMount.current = false
-      if (titleSettings.aiAutoSelect && !titleSettings.title) {
-        autoGenerateTitle()
-      }
-      prevAiAutoSelect.current = titleSettings.aiAutoSelect
-      return
-    }
-    if (titleSettings.aiAutoSelect && !prevAiAutoSelect.current && !titleSettings.title) {
-      autoGenerateTitle()
-    }
-    prevAiAutoSelect.current = titleSettings.aiAutoSelect
-  }, [titleSettings.aiAutoSelect, titleSettings.title, autoGenerateTitle])
-
  return {
    // 数据
    userTitles,
    titleSettings,
-    // AI 标题状态
-    aiTitleInput,
-    setAiTitleInput,
-    aiTitleGenerating,
-    aiTitleResults,
-    hasGeneratedTitles,
    activePreset: styleUpdaters.activePreset,
    titlePresets: styleUpdaters.titlePresets,
-    // AI 标题操作
-    handleGenerateAiTitles,
-    handleSelectAiTitle,
-    handleRefreshAiTitles,
-    autoGenerateTitle,
    // 标题设置操作
    updateTitle: styleUpdaters.updateTitle,
    toggleAiAutoSelect: styleUpdaters.toggleAiAutoSelect,
@@ -1,124 +0,0 @@
-import { useState, useCallback } from "react"
-import { message } from "antd"
-import { AI_TITLE_TEMPLATES } from "../../constants"
-import type { TitleSettings } from "../../types"
-
-export interface AiTitleItem {
-  title: string
-  highlight: string
-  style: "catchy" | "emotional" | "informative"
-}
-
-interface UseAiTitleGeneratorOptions {
-  titleSettings: TitleSettings
-  onTitleSettingsChange: (settings: TitleSettings) => void
-}
-
-/**
- * AI 标题生成 Hook
- * 封装 AI 标题生成、刷新、选择等逻辑
- */
-export function useAiTitleGenerator({
-  titleSettings,
-  onTitleSettingsChange,
-}: UseAiTitleGeneratorOptions) {
-  const [aiTitleInput, setAiTitleInput] = useState("")
-  const [aiTitleGenerating, setAiTitleGenerating] = useState(false)
-  const [aiTitleResults, setAiTitleResults] = useState<AiTitleItem[]>([])
-  const [hasGeneratedTitles, setHasGeneratedTitles] = useState(false)
-
-  const extractTopic = (text: string): string => {
-    const keywords = text
-      .replace(/[，。！？、,.!?]/g, " ")
-      .split(/\s+/)
-      .filter(Boolean)
-    if (keywords.length === 0) return "这个话题"
-    return keywords.slice(0, 3).join("")
-  }
-
-  const generateTitlesFromTopic = (topic: string): AiTitleItem[] => {
-    const results: AiTitleItem[] = []
-    const styles: Array<"catchy" | "emotional" | "informative"> = [
-      "catchy",
-      "emotional",
-      "informative",
-    ]
-    const highlights = { catchy: "吸睛标题", emotional: "情感共鸣", informative: "知识干货" }
-    styles.forEach((style) => {
-      const templates = AI_TITLE_TEMPLATES[style]
-      const shuffled = [...templates].sort(() => Math.random() - 0.5).slice(0, 2)
-      shuffled.forEach((tpl) => {
-        results.push({
-          title: tpl.replace(/\{topic\}/g, topic),
-          highlight: highlights[style],
-          style,
-        })
-      })
-    })
-    results.sort(() => Math.random() - 0.5)
-    return results
-  }
-
-  const handleGenerateAiTitles = useCallback(async () => {
-    if (!aiTitleInput.trim()) {
-      message.warning("请先输入视频描述或关键词")
-      return
-    }
-    setAiTitleGenerating(true)
-    setHasGeneratedTitles(true)
-    await new Promise((resolve) => setTimeout(resolve, 1200))
-    const topic = extractTopic(aiTitleInput)
-    setAiTitleResults(generateTitlesFromTopic(topic))
-    setAiTitleGenerating(false)
-  }, [aiTitleInput])
-
-  /**
-   * 自动生成标题（供 AI 自动选择开关使用）
-   * 如果已有生成结果，直接从中选一个；否则用默认关键词生成
-   */
-  const autoGenerateTitle = useCallback((): string => {
-    if (aiTitleResults.length > 0) {
-      const picked = aiTitleResults[Math.floor(Math.random() * aiTitleResults.length)]
-      if (!picked) return ""
-      onTitleSettingsChange({ ...titleSettings, title: picked.title })
-      return picked.title
-    }
-    // 没有已有结果，用默认关键词生成
-    const results = generateTitlesFromTopic("短视频")
-    setAiTitleResults(results)
-    setHasGeneratedTitles(true)
-    const picked = results[Math.floor(Math.random() * results.length)]
-    if (!picked) return ""
-    onTitleSettingsChange({ ...titleSettings, title: picked.title })
-    return picked.title
-  }, [aiTitleResults, titleSettings, onTitleSettingsChange])
-
-  const handleSelectAiTitle = useCallback(
-    (title: string) => {
-      onTitleSettingsChange({ ...titleSettings, title })
-      message.success("已选用此标题")
-    },
-    [titleSettings, onTitleSettingsChange],
-  )
-
-  const handleRefreshAiTitles = useCallback(async () => {
-    if (!aiTitleInput.trim()) return
-    setAiTitleGenerating(true)
-    await new Promise((resolve) => setTimeout(resolve, 800))
-    const topic = extractTopic(aiTitleInput)
-    setAiTitleResults(generateTitlesFromTopic(topic))
-    setAiTitleGenerating(false)
-  }, [aiTitleInput])
-
-  return {
-    aiTitleInput,
-    setAiTitleInput,
-    aiTitleGenerating,
-    aiTitleResults,
-    hasGeneratedTitles,
-    handleGenerateAiTitles,
-    handleSelectAiTitle,
-    handleRefreshAiTitles,
-    autoGenerateTitle,
-  }
-}
@@ -1,6 +1,7 @@
 import { useCallback, useMemo } from "react"
 import { TITLE_PRESETS } from "../../constants"
 import { TITLE_PRESETS as NEW_TITLE_PRESETS } from "@/components/title/constants"
+import { titleStyleConfigToCamel } from "@/components/title/utils"
 import type { TitleSettings } from "../../types"

 interface UseTitleStyleUpdatersOptions {
@@ -16,8 +17,24 @@ export function useTitleStyleUpdaters({
  titleSettings,
  onTitleSettingsChange,
 }: UseTitleStyleUpdatersOptions) {
-  /** 匹配预设：只用 color/bold/italic/stroke/shadow，不再匹配 size */
+  /** 匹配预设：对新预设（snake→camel 后）全字段比；旧预设只比 color/bold/italic/stroke/shadow */
  const getActivePreset = (settings: TitleSettings): string | null => {
+    // 新预设匹配：font/size/color/bold/stroke/shadow/bg 全部对齐才算命中
+    for (const p of NEW_TITLE_PRESETS) {
+      const camel = titleStyleConfigToCamel(p.style)
+      if (
+        (camel.font ?? null) === (settings.font ?? null) &&
+        (camel.color ?? null) === (settings.color ?? null) &&
+        (camel.bold ?? null) === (settings.bold ?? null) &&
+        (camel.italic ?? null) === (settings.italic ?? null) &&
+        (camel.stroke ?? null) === (settings.stroke ?? null) &&
+        (camel.shadow ?? null) === (settings.shadow ?? null) &&
+        (camel.bgEnabled ?? null) === (settings.bgEnabled ?? null)
+      ) {
+        return p.key
+      }
+    }
+    // fallback 旧预设（legacy）
    for (const p of TITLE_PRESETS) {
      if (
        settings.color === p.style.color &&
@@ -91,24 +108,31 @@ export function useTitleStyleUpdaters({
  }, [titleSettings, onTitleSettingsChange])

  const toggleStroke = useCallback(() => {
-    onTitleSettingsChange({ ...titleSettings, stroke: !titleSettings.stroke })
+    onTitleSettingsChange({
+      ...titleSettings,
+      stroke: !titleSettings.stroke,
+      // 开启描边时若宽度过小给个默认值（让滑块可见可调）
+      strokeWidth:
+        !titleSettings.stroke && (titleSettings.strokeWidth ?? 0) < 2
+          ? 4
+          : titleSettings.strokeWidth,
+    })
  }, [titleSettings, onTitleSettingsChange])

  const toggleShadow = useCallback(() => {
    onTitleSettingsChange({ ...titleSettings, shadow: !titleSettings.shadow })
  }, [titleSettings, onTitleSettingsChange])

-  /** 应用预设（支持新预设细粒度字段） */
+  /** 应用预设：正确把 snake_case 的 preset.style 转为 camelCase 再 spread */
  const applyPreset = useCallback(
    (presetKey: string) => {
-      // 优先匹配新预设（10个爆款预设），fallback 旧预设
      const newPreset = NEW_TITLE_PRESETS.find((p) => p.key === presetKey)
      const oldPreset = TITLE_PRESETS.find((p) => p.key === presetKey)
      if (newPreset) {
        onTitleSettingsChange({
          ...titleSettings,
-          ...(newPreset.style as Partial<TitleSettings>),
-          // 清除逐行覆盖
+          ...titleStyleConfigToCamel(newPreset.style),
+          // 封面独立标题保持不变（不清空，避免破坏封面定制）
          lineOverrides: [],
        })
        return
@@ -116,11 +140,47 @@ export function useTitleStyleUpdaters({
      if (!oldPreset) return
      onTitleSettingsChange({
        ...titleSettings,
-        color: oldPreset.style.color,
-        bold: oldPreset.style.bold,
-        italic: oldPreset.style.italic,
-        stroke: oldPreset.style.stroke,
-        shadow: oldPreset.style.shadow,
+        color: oldPreset.style.color as string,
+        bold: oldPreset.style.bold as boolean,
+        italic: oldPreset.style.italic as boolean,
+        stroke: oldPreset.style.stroke as boolean,
+        shadow: oldPreset.style.shadow as boolean,
+      })
+    },
+    [titleSettings, onTitleSettingsChange],
+  )
+
+  /** 应用模板：用模板（camelCase TitleSettings）覆盖样式字段，保留 title/aiAutoSelect */
+  const applyTemplate = useCallback(
+    (tpl: TitleSettings) => {
+      onTitleSettingsChange({
+        ...titleSettings,
+        // 覆盖样式字段
+        position: tpl.position,
+        posX: tpl.posX,
+        posY: tpl.posY,
+        font: tpl.font,
+        size: tpl.size,
+        bold: tpl.bold,
+        italic: tpl.italic,
+        stroke: tpl.stroke,
+        shadow: tpl.shadow,
+        color: tpl.color,
+        lineHeight: tpl.lineHeight,
+        marginTop: tpl.marginTop,
+        maxCharsPerLine: tpl.maxCharsPerLine,
+        strokeWidth: tpl.strokeWidth,
+        strokeColor: tpl.strokeColor,
+        shadowOffsetX: tpl.shadowOffsetX,
+        shadowOffsetY: tpl.shadowOffsetY,
+        shadowBlur: tpl.shadowBlur,
+        shadowColor: tpl.shadowColor,
+        bgEnabled: tpl.bgEnabled,
+        bgColor: tpl.bgColor,
+        bgPadding: tpl.bgPadding,
+        bgRadius: tpl.bgRadius,
+        lineOverrides: [],
+        // coverTitle 保留用户当前值，不强制覆盖
      })
    },
    [titleSettings, onTitleSettingsChange],
@@ -149,6 +209,7 @@ export function useTitleStyleUpdaters({
    toggleStroke,
    toggleShadow,
    applyPreset,
+    applyTemplate,
    updateStyle,
  }
 }
@@ -1,165 +0,0 @@
-/**
- * 批量变体配音预览音频解析（#1750）
- *
- * 独立配音模式下每个变体挂载各自的配音 URL：
- * - 配音素材（voice 资产，有 file_url）→ 直接用素材文件 URL；
- * - AI 音色（预置/克隆，无实体文件）→ 按该变体自己的标题调 /tts/preview 合成；
- * - 共用模式下所有变体解析为同一条（等价于旧 previewVoiceAudioUrl）。
- *
- * N=1 不使用本 hook（单视频配音预览逻辑在 GeneratePage 内保持不变，零回归）。
- */
-import { useEffect, useRef, useState } from "react"
-import { useQuery } from "@tanstack/react-query"
-import { getAssetsByKind } from "@/api/assets"
-import type { AssetItem } from "@/api/assets"
-import { previewTts } from "@/api/tts"
-
-interface UseVariantVoicePreviewOptions {
-  /** 是否批量模式（count>1） */
-  enabled: boolean
-  /** 变体数量 */
-  count: number
-  /** 是否每个视频独立配音 */
-  perVideo: boolean
-  /** 共用配音 ID（独立模式下为变体 0 的配音） */
-  sharedVoiceId: string
-  /** 克隆音色 ID 覆盖（共用模式，与旧逻辑一致：selectedClonedVoice || selectedVoice） */
-  clonedVoiceId?: string
-  /** 各变体独立配音 ID（独立模式）；长度不足时回退共用 */
-  variantVoiceIds: string[]
-  /** 各变体标题（TTS 合成文案源） */
-  titles: string[]
-}
-
-/** 稳定的空数组常量：避免 useQuery 数据未就绪时每次渲染产生新引用导致 effect 无限触发 */
-const EMPTY_VOICE_MATERIALS: AssetItem[] = []
-
-/** 判断配音 ID 是否对应实体素材（有 file_url）；否则视为 AI 音色需 TTS */
-function findMaterialUrl(id: string, materials: AssetItem[]): string | null {
-  if (!id) return null
-  const m = materials.find((x) => x.id === id)
-  return m?.file_url || null
-}
-
-export function useVariantVoicePreview({
-  enabled,
-  count,
-  perVideo,
-  sharedVoiceId,
-  clonedVoiceId = "",
-  variantVoiceIds,
-  titles,
-}: UseVariantVoicePreviewOptions): (string | null)[] {
-  const [urls, setUrls] = useState<(string | null)[]>([])
-  // 配音素材库：组件内部自取，避免调用方传入不稳定数组引用导致 effect 反复触发
-  const { data: voiceMaterialsData } = useQuery({
-    queryKey: ["assets", "voice"],
-    queryFn: () => getAssetsByKind("voice", { limit: 50 }),
-  })
-  const voiceMaterials: AssetItem[] = voiceMaterialsData ?? EMPTY_VOICE_MATERIALS
-  // 已缓存的 TTS 结果：key = `${voiceId}|${title}`，避免重复合成
-  const ttsCacheRef = useRef<Map<string, string>>(new Map())
-  // 在途请求 AbortController
-  const abortRef = useRef<AbortController | null>(null)
-  const seqRef = useRef(0)
-
-  useEffect(() => {
-    if (!enabled || count <= 1) {
-      setUrls((prev) => (prev.length === 0 ? prev : []))
-      return
-    }
-
-    const seq = ++seqRef.current
-    abortRef.current?.abort()
-    const controller = new AbortController()
-    abortRef.current = controller
-
-    // 每个变体实际使用的配音 ID
-    const voiceIds = Array.from({ length: count }, (_, i) =>
-      perVideo ? variantVoiceIds[i] || sharedVoiceId : sharedVoiceId,
-    )
-
-    // 先用素材 URL 同步填充；AI 音色位置先置 null，待 TTS 完成
-    const result: (string | null)[] = voiceIds.map((id, i) => {
-      const materialUrl = findMaterialUrl(id, voiceMaterials)
-      if (materialUrl) return materialUrl
-      // 共用模式下克隆音色 ID 可能与 selectedVoice 不同（与旧 useEffect 逻辑一致）
-      if (!perVideo && i === 0 && clonedVoiceId) {
-        return findMaterialUrl(clonedVoiceId, voiceMaterials)
-      }
-      return null
-    })
-
-    // 收集需要 TTS 的变体：无素材 URL 且有标题且有音色 ID
-    const ttsJobs: { index: number; voiceId: string; title: string }[] = []
-    voiceIds.forEach((id, i) => {
-      if (result[i]) return
-      // 共用模式沿用旧逻辑：voice_id = selectedClonedVoice || selectedVoice
-      const ttsVoiceId = !perVideo && i === 0 ? clonedVoiceId || id : id
-      const title = titles[i] || ""
-      if (!ttsVoiceId || !title) return
-      ttsJobs.push({ index: i, voiceId: ttsVoiceId, title })
-    })
-
-    setUrls((prev) =>
-      prev.length === result.length && prev.every((v, i) => v === result[i]) ? prev : result,
-    )
-
-    if (ttsJobs.length === 0) return
-
-    let cancelled = false
-    void (async () => {
-      // 串行 TTS，避免瞬间 N 个合成请求打爆后端
-      for (const job of ttsJobs) {
-        const cacheKey = `${job.voiceId}|${job.title}`
-        const cached = ttsCacheRef.current.get(cacheKey)
-        if (cached) {
-          if (seq === seqRef.current) {
-            setUrls((prev) => {
-              if (prev[job.index] === cached) return prev
-              const next = [...prev]
-              next[job.index] = cached
-              return next
-            })
-          }
-          continue
-        }
-        try {
-          const res = await previewTts({ text: job.title, voice_id: job.voiceId })
-          if (cancelled || controller.signal.aborted || seq !== seqRef.current) return
-          const audioUrl = res.audio_url || ""
-          if (audioUrl) {
-            ttsCacheRef.current.set(cacheKey, audioUrl)
-            setUrls((prev) => {
-              if (prev[job.index] === audioUrl) return prev
-              const next = [...prev]
-              next[job.index] = audioUrl
-              return next
-            })
-          }
-        } catch (err) {
-          if (cancelled || controller.signal.aborted || seq !== seqRef.current) return
-          console.warn(`[变体${job.index + 1}预览配音生成失败]`, err)
-        }
-      }
-    })()
-
-    return () => {
-      cancelled = true
-      controller.abort()
-    }
-  }, [
-    enabled,
-    count,
-    perVideo,
-    sharedVoiceId,
-    clonedVoiceId,
-    variantVoiceIds,
-    titles,
-    voiceMaterials,
-  ])
-
-  return urls
-}
-
-export default useVariantVoicePreview
@@ -81,14 +81,6 @@ export interface SmartMatchResult {
  reasons: string[]
 }

-/* ── AI 标题结果 ── */
-export interface AiTitleResult {
-  title: string
-  style: string
-  styleLabel: string
-  highlights: string[]
-}
-
 /* ── 配音推荐结果 ── */
 export interface VoiceRecommendation {
  voiceId: string
@@ -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)
-  })
-})
@@ -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()
-  })
-})
@@ -19,7 +19,6 @@ import "@/pages/generate/components/Step2MaterialSelect"
 import "@/pages/generate/components/Step4TitleSettings"
 import "@/pages/generate/components/Step5VoiceSelect"
 import "@/pages/generate/components/Step3VoiceWithMode"
-import "@/pages/generate/components/CanvasPreviewGrid"
 import "@/pages/generate/components/BatchGenerationGrid"
 import "@/pages/generate/components/PreviewCountModal"
 import "@/pages/generate/components/GenerateStepContent"
@@ -33,8 +32,6 @@ import "@/pages/generate/components/material/MaterialModeTabs"
 import "@/pages/generate/components/material/ManualMaterialList"
 import "@/pages/generate/components/material/SmartMatchInput"
 import "@/pages/generate/components/material/SmartMatchResults"
-import "@/pages/generate/components/title/AiTitleGenerator"
-import "@/pages/generate/components/title/AiTitleCard"
 import "@/pages/generate/components/title/TitleStylePanel"
 import "@/pages/generate/components/title/TitlePresetsGrid"
 import "@/pages/generate/utils/formatDuration"
@@ -48,9 +45,6 @@ describe("GeneratePage module smoke test", () => {
 import "@/pages/generate/hooks/useGenerateVideo"
 import "@/pages/generate/hooks/useBatchCovers"
 import "@/pages/generate/hooks/useBatchVariantPlans"
-import "@/pages/generate/hooks/useVariantVoicePreview"
-import "@/pages/generate/hooks/usePreviewAssets"
-import "@/pages/generate/hooks/useSegmentScheduler"
 import "@/pages/generate/hooks/generate-video/useGenerationPolling"
 import "@/pages/generate/hooks/useGenerateFormState"
 import "@/pages/generate/hooks/useGenerateFormState/useVoiceState"
@@ -1,18 +0,0 @@
-/**
- * Step4+5 merged preview smoke test
- * 确保 vitest related 模式能匹配到第5步预览生成相关文件的改动
- */
-import { describe, it, expect } from "vitest"
-
-import "@/pages/generate/hooks/usePreviewAssets"
-import "@/pages/generate/hooks/useSegmentScheduler"
-import "@/pages/generate/components/FrontendPreviewPlayer"
-import "@/pages/generate/hooks/useStepNavigation"
-import "@/pages/generate/components/GenerateStepContent"
-import "@/pages/generate/GeneratePage"
-
-describe("Merged Step4+5 preview module smoke test", () => {
-  it("should load all merged step4+5 preview modules", () => {
-    expect(true).toBe(true)
-  })
-})
@@ -16,6 +16,7 @@ from typing import Any
 from packages.domain.ass_subtitle_builder import (
    TITLE_MARGIN_SIDE,
    TITLE_MARGIN_TOP,
+    _scale_len,
    _wrap_title_text,
    build_ass_style,
    escape_ass_text,
@@ -133,22 +134,23 @@ def generate_ass_from_timeline(
        output_path.write_text("", encoding="utf-8")
        return output_path

-    # 样式参数
+    # 样式参数（字号/描边/边距按视频宽度缩放，基准 720p，与前端预览一致）
+    _sw = video_width
    font_name = subtitle_config.get("font", "思源黑体")
-    font_size = int(subtitle_config.get("size", 24))
+    font_size = _scale_len(int(subtitle_config.get("size", 24)), _sw)
    color = _hex_to_ass_color(subtitle_config.get("color", "#ffffff"))
    position = subtitle_config.get("position", "bottom")
    alignment = _position_to_ass_alignment(position)
    max_chars_per_line = int(subtitle_config.get("max_chars_per_line", DEFAULT_MAX_CHARS_PER_LINE))

-    # 描边（默认黑色描边，保证可读性）
+    # 描边（默认黑色描边，保证可读性）—— 720p 基准 1.5
    outline_color = "&H00000000"
-    outline_width = 1.5
+    outline_width = _scale_len(1.5, _sw)

-    # 边距
-    margin_v = 60 if position == "bottom" else 60
-    margin_l = 40
-    margin_r = 40
+    # 边距（720p 基准 60/40）
+    margin_v = _scale_len(60 if position == "bottom" else 60, _sw)
+    margin_l = _scale_len(40, _sw)
+    margin_r = _scale_len(40, _sw)

    # 生成样式行
    style_line = (
@@ -203,22 +205,29 @@ def generate_ass_from_timeline(
        if "font_color" in title_cfg and "color" not in title_cfg:
            title_cfg["color"] = title_cfg["font_color"]

+        _tsw = video_width
        t_color = hex_to_ass_color(title_cfg.get("color", "#ffffff"))
        t_stroke = title_cfg.get("stroke", {}) or {}
        t_shadow = title_cfg.get("shadow", {}) or {}
        s_color = hex_to_ass_color(t_stroke.get("color", "#000000"))
-        s_width = float(t_stroke.get("width", 2)) if t_stroke.get("enabled", False) else 0.0
-        sh_blur = float(t_shadow.get("blur", 4)) if t_shadow.get("enabled", False) else 0.0
+        s_width = _scale_len(float(t_stroke.get("width", 2)) if t_stroke.get("enabled", False) else 0.0, _tsw)
+        sh_blur = _scale_len(float(t_shadow.get("blur", 4)) if t_shadow.get("enabled", False) else 0.0, _tsw)
        sh_offset = (
-            t_shadow.get("offset_x", 2) if t_shadow.get("enabled", False) else 0,
-            t_shadow.get("offset_y", 2) if t_shadow.get("enabled", False) else 0,
+            _scale_len(t_shadow.get("offset_x", 2) if t_shadow.get("enabled", False) else 0, _tsw),
+            _scale_len(t_shadow.get("offset_y", 2) if t_shadow.get("enabled", False) else 0, _tsw),
        )
        t_alignment = position_to_ass_alignment(title_cfg.get("position", "bottom"))

+        # 标题字号/边距按视频宽度缩放（基准 720p），移除旧的 min(...,36) 上限避免 1080p 被钳位过小
+        _base_title_size = int(title_cfg.get("size", 36))
+        t_font_size = _scale_len(_base_title_size, _tsw)
+        _t_margin_top = _scale_len(TITLE_MARGIN_TOP, _tsw)
+        _t_margin_side = _scale_len(TITLE_MARGIN_SIDE, _tsw)
+
        title_style_line = build_ass_style(
            "TitleStyle",
            font_name=title_cfg.get("font", "思源黑体"),
-            font_size=min(int(title_cfg.get("size", 36)), 36),
+            font_size=t_font_size,
            primary_color=t_color,
            outline_color=s_color,
            outline_width=s_width,
@@ -227,14 +236,15 @@ def generate_ass_from_timeline(
            bold=bool(title_cfg.get("bold", True)),
            italic=bool(title_cfg.get("italic", False)),
            alignment=t_alignment,
-            margin_v=TITLE_MARGIN_TOP,
-            margin_l=TITLE_MARGIN_SIDE,
-            margin_r=TITLE_MARGIN_SIDE,
+            margin_v=_t_margin_top,
+            margin_l=_t_margin_side,
+            margin_r=_t_margin_side,
        )

-        t_font_size = min(int(title_cfg.get("size", 36)), 36)
        safe_raw = escape_ass_text(title_text.strip())
-        safe_wrapped = _wrap_title_text(safe_raw, video_width, t_font_size)
+        safe_wrapped = _wrap_title_text(
+            safe_raw, video_width, t_font_size, margin_l=_t_margin_side, margin_r=_t_margin_side
+        )

        if video_duration > 0:
            t_end_time = format_ass_time(video_duration)
@@ -805,8 +805,9 @@ def _run_inference(
            crop = frame[y1:y2_eff, x1:x2]
            if crop.size == 0:
                continue
-            crop_rgb = cv2.cvtColor(crop, cv2.COLOR_BGR2RGB)
-            crop_resized = cv2.resize(crop_rgb, (256, 256), interpolation=cv2.INTER_LANCZOS4)
+            # 直接传 BGR 给 VAE：VAE 内部 preprocess_img 已做 BGR→RGB 转换，
+            # 此处再 cvtColor 会造成双重转换、R/B 通道互换（蓝色块根因）。
+            crop_resized = cv2.resize(crop, (256, 256), interpolation=cv2.INTER_LANCZOS4)
            # 使用 VAE 的 get_latents_for_unet 得到 8 通道输入
            # get_latents_for_unet 内部: preprocess(half_mask=True) encode + preprocess(half_mask=False) encode → cat → [1,8,32,32]
            latents = vae.get_latents_for_unet(crop_resized).detach().cpu()
@@ -59,6 +59,31 @@ FONT_NAME_MAP: dict[str, str] = {
 # font_size=89 → ASS Fontsize=round(89*1.35)=120，实际中文字高约 78~85px。
 ASS_FONTSIZE_COMPENSATION = 1.35

+# 前端预览字号的基准宽度（px）。前端 TitleMiniPreview 以 width/360 缩放、titleCanvas.ts
+# 以 videoWidth/720 缩放（360 是 720 的一半，字号等比例一致），types.ts 注释 "px @720p"。
+# 当输出视频宽度 ≠ 720 时，所有长度类字段（字号/描边宽/阴影偏移/边距）
+# 都按 video_width / TITLE_SIZE_REF_WIDTH 等比缩放，保证成片标题视觉大小与预览一致。
+TITLE_SIZE_REF_WIDTH = 720
+
+
+def _scale_len(value, video_width: int):
+    """将 720p 基准长度值按 video_width 等比缩放。
+
+    整数输入 → 返回 int（用于字号、描边宽、边距、偏移等整数字段）；
+    浮点输入 → 返回 float（保留小数，用于 1.5 这类 outline 细描边）；
+    非数值原样返回。
+    """
+    if value is None:
+        return None
+    try:
+        v = float(value)
+    except (TypeError, ValueError):
+        return value
+    if not video_width or video_width <= 0:
+        return int(round(v)) if isinstance(value, int) else v
+    scaled = v * (video_width / TITLE_SIZE_REF_WIDTH)
+    return int(round(scaled)) if isinstance(value, int) else scaled
+

 def _compensate_ass_fontsize(font_size: int) -> int:
    """将 CSS 语义字号换算为 ASS Fontsize，补偿中文字符在 em-square 中的留白。"""
@@ -374,6 +399,44 @@ def build_ass_content(
                else {"enabled": False}
            )

+    # ── 字号/描边/阴影/边距按视频宽度缩放（基准 720p，与前端预览一致） ──
+    # 前端标题/字幕面板的 size 语义是 "px @720p"（见 types.ts 注释、titleCanvas.ts scale=videoWidth/720），
+    # 当输出分辨率不是 720p（如 1080x1920 竖屏、4K）时等比放大，避免成片标题比预览小。
+    def _scale_cfg(cfg: dict, defaults: dict | None = None) -> None:
+        if not isinstance(cfg, dict):
+            return
+        # 先填充默认值，再统一缩放，避免 .get("size", 36) 处拿未缩放默认值
+        if defaults:
+            for k, v in defaults.items():
+                cfg.setdefault(k, v)
+        sw = video_width
+        for key in ("size", "font_size"):
+            if key in cfg:
+                try:
+                    cfg[key] = _scale_len(cfg[key], sw)
+                except (TypeError, ValueError):
+                    pass
+        # stroke/shadow 的 width/blur/offset 由后续字段提取处统一按 720p 默认值+缩放处理
+        # （包含 enabled=false 时不写入、默认值 2/4 也需缩放），此处不再重复缩放
+        for key in ("margin_top", "bg_padding", "bg_radius", "pos_x", "pos_y"):
+            # pos_x/pos_y 是百分比(0-100)不缩放，margin/padding/radius 是 px @720p 需要缩放
+            if key in cfg and key not in ("pos_x", "pos_y"):
+                cfg[key] = _scale_len(cfg.get(key), sw)
+        # 逐行覆盖的 size 也要缩放
+        overrides = cfg.get("line_overrides")
+        if isinstance(overrides, list):
+            for ov in overrides:
+                if isinstance(ov, dict) and "size" in ov:
+                    ov["size"] = _scale_len(ov.get("size"), sw)
+
+    _scale_cfg(title_config, defaults={"size": 36})
+    _scale_cfg(subtitle_config, defaults={"size": 24})
+
+    # 边距按视频宽度缩放（基准 720p）
+    _margin_top = _scale_len(TITLE_MARGIN_TOP, video_width) or TITLE_MARGIN_TOP
+    _margin_bottom = _scale_len(TITLE_MARGIN_BOTTOM, video_width) or TITLE_MARGIN_BOTTOM
+    _margin_side = _scale_len(TITLE_MARGIN_SIDE, video_width) or TITLE_MARGIN_SIDE
+
    title_enabled = title_config.get("enabled", True) and bool(title_text.strip())
    subtitle_enabled = subtitle_config.get("enabled", True) and bool(subtitle_text.strip())

@@ -389,11 +452,16 @@ def build_ass_content(
        title_stroke = title_config.get("stroke", {}) or {}
        title_shadow = title_config.get("shadow", {}) or {}
        stroke_color = hex_to_ass_color(title_stroke.get("color", "#000000"))
-        stroke_width = float(title_stroke.get("width", 2)) if title_stroke.get("enabled", False) else 0.0
-        shadow_blur = float(title_shadow.get("blur", 4)) if title_shadow.get("enabled", False) else 0.0
+        # 描边/阴影默认值也是 720p 基准，需要随视频宽度缩放
+        _def_stroke_w = float(title_stroke.get("width", 2)) if title_stroke.get("enabled", False) else 0.0
+        _def_shadow_b = float(title_shadow.get("blur", 4)) if title_shadow.get("enabled", False) else 0.0
+        _def_shadow_x = title_shadow.get("offset_x", 2) if title_shadow.get("enabled", False) else 0
+        _def_shadow_y = title_shadow.get("offset_y", 2) if title_shadow.get("enabled", False) else 0
+        stroke_width = float(_scale_len(_def_stroke_w, video_width))
+        shadow_blur = float(_scale_len(_def_shadow_b, video_width))
        shadow_offset = (
-            title_shadow.get("offset_x", 2) if title_shadow.get("enabled", False) else 0,
-            title_shadow.get("offset_y", 2) if title_shadow.get("enabled", False) else 0,
+            _scale_len(_def_shadow_x, video_width),
+            _scale_len(_def_shadow_y, video_width),
        )

        # ── 自由位置拖拽（工单 #1405 方案 B）────────────────────────────
@@ -420,9 +488,9 @@ def build_ass_content(
                bold=bool(title_config.get("bold", True)),
                italic=bool(title_config.get("italic", False)),
                alignment=title_alignment,
-                margin_v=TITLE_MARGIN_TOP,
-                margin_l=TITLE_MARGIN_SIDE,
-                margin_r=TITLE_MARGIN_SIDE,
+                margin_v=_margin_top,
+                margin_l=_margin_side,
+                margin_r=_margin_side,
            )
        )

@@ -430,7 +498,9 @@ def build_ass_content(
        # 先 escape 特殊字符，再插入换行符 \N，避免顺序颠倒导致 \N 被转义
        title_font_size = int(title_config.get("size", 36))
        safe_title_text_raw = escape_ass_text(title_text)
-        safe_title_text = _wrap_title_text(safe_title_text_raw, video_width, title_font_size)
+        safe_title_text = _wrap_title_text(
+            safe_title_text_raw, video_width, title_font_size, margin_l=_margin_side, margin_r=_margin_side
+        )

        # #2001 逐行样式覆盖：按 line_overrides 在每行前注入 ASS inline override 标签
        # line_overrides 透传自前端爆款标题面板，SubtitleStyle.from_dict 已做安全过滤
@@ -460,15 +530,15 @@ def build_ass_content(
                font_size=int(subtitle_config.get("size", 24)),
                primary_color=sub_color,
                outline_color="&H00000000",
-                outline_width=1.0,
+                outline_width=float(_scale_len(1.0, video_width)),
                shadow_blur=0.0,
                shadow_offset=(0, 0),
                bold=False,
                italic=False,
                alignment=sub_alignment,
-                margin_v=TITLE_MARGIN_BOTTOM,
-                margin_l=TITLE_MARGIN_SIDE,
-                margin_r=TITLE_MARGIN_SIDE,
+                margin_v=_margin_bottom,
+                margin_l=_margin_side,
+                margin_r=_margin_side,
            )
        )

@@ -428,6 +428,26 @@ DRAWTEXT_FONT_MAP: dict[str, str] = {
 }


+# 前端标题/字幕面板的字号/描边/阴影/边距语义是 "px @720p"（见 web/src/pages/generate/types.ts
+# 注释、apps/web/src/pages/ai-avatar/utils/titleCanvas.ts scale = videoWidth / 720）。
+# 当输出视频宽度 != 720 时（如 1080x1920 竖屏、4K），drawtext 降级路径需要按比例
+# 缩放所有长度类字段，避免成片标题视觉上比前端预览小。
+TITLE_DRAWTEXT_REF_WIDTH = 720
+
+
+def _scale_title_len(value, output_width: int):
+    """将 720p 基准长度值按 output_width 等比缩放，返回 int."""
+    if value is None:
+        return 0
+    try:
+        v = float(value)
+    except (TypeError, ValueError):
+        return 0
+    if not output_width or output_width <= 0:
+        return int(round(v))
+    return int(round(v * (output_width / TITLE_DRAWTEXT_REF_WIDTH)))
+
+
 def _escape_drawtext_text(text: str) -> str:
    """转义 drawtext 特殊字符。

@@ -514,6 +534,8 @@ def build_title_drawtext_filter(
    # ── 样式参数 ──
    font_name = title_config.get("font") or title_config.get("font_preset") or "思源黑体"
    font_size = int(title_config.get("font_size") or title_config.get("size") or 48)
+    # 字号/描边/阴影按视频宽度等比缩放（基准 720p，与前端预览一致）
+    font_size = _scale_title_len(font_size, output_width)
    font_color = title_config.get("font_color") or title_config.get("color") or "#ffffff"
    # 去掉 # 前缀（drawtext 用纯 hex 或颜色名）
    if font_color.startswith("#"):
@@ -549,31 +571,31 @@ def build_title_drawtext_filter(
    border_color = "000000"
    if stroke:
        if isinstance(stroke, bool):
-            border_width = 2
+            border_width = _scale_title_len(2, output_width)
            border_color = "000000"
        elif isinstance(stroke, dict):
            if stroke.get("enabled", True):
-                border_width = int(stroke.get("width", 2))
+                border_width = _scale_title_len(int(stroke.get("width", 2)), output_width)
                border_color = (stroke.get("color") or "#000000").lstrip("#")
    elif bold:
        # 粗体模式且未配描边：黑色细描边，模拟粗体同时保证不重影
-        border_width = 2
+        border_width = _scale_title_len(2, output_width)
        border_color = "000000"
    if border_width > 0:
        params.append(f"borderw={border_width}")
        params.append(f"bordercolor={border_color}")

-    # 阴影（shadowcolor + shadowx/y）
+    # 阴影（shadowcolor + shadowx/y）—— 同样按视频宽度缩放
    if shadow:
        if isinstance(shadow, bool):
            params.append("shadowcolor=black")
-            params.append("shadowx=2")
-            params.append("shadowy=2")
+            params.append(f"shadowx={_scale_title_len(2, output_width)}")
+            params.append(f"shadowy={_scale_title_len(2, output_width)}")
        elif isinstance(shadow, dict):
            if shadow.get("enabled", True):
                params.append(f"shadowcolor={(shadow.get('color') or '#000000').lstrip('#')}")
-                params.append(f"shadowx={int(shadow.get('offset_x', 2))}")
-                params.append(f"shadowy={int(shadow.get('offset_y', 2))}")
+                params.append(f"shadowx={_scale_title_len(int(shadow.get('offset_x', 2)), output_width)}")
+                params.append(f"shadowy={_scale_title_len(int(shadow.get('offset_y', 2)), output_width)}")

    # ── 位置计算 ──
    # 优先使用自定义坐标 pos_x / pos_y
@@ -600,10 +622,10 @@ def build_title_drawtext_filter(
        if position == "center":
            params.append("y=(h-text_h)/2")
        elif position == "bottom":
-            params.append("y=h-text_h-50")
+            params.append(f"y=h-text_h-{_scale_title_len(50, output_width)}")
        else:
            # top（默认）
-            params.append("y=50")
+            params.append(f"y={_scale_title_len(50, output_width)}")

    return "drawtext=" + ":".join(params)

@@ -285,20 +285,20 @@ class TestFormatAssTime:

 class TestBuildAssContent:
    def test_no_subtitles_returns_empty(self):
-        result = build_ass_content(video_width=1920, video_height=1080, video_duration=10.0)
+        result = build_ass_content(video_width=720, video_height=1280, video_duration=10.0)
        assert result == ""

    def test_title_only(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="Test Title",
        )
        assert result != ""
        assert "[Script Info]" in result
-        assert "PlayResX: 1920" in result
-        assert "PlayResY: 1080" in result
+        assert "PlayResX: 720" in result
+        assert "PlayResY: 1280" in result
        assert "[V4+ Styles]" in result
        assert "[Events]" in result
        assert "TitleStyle" in result
@@ -306,8 +306,8 @@ class TestBuildAssContent:

    def test_subtitle_only(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            subtitle_text="Hello Subtitle",
        )
@@ -317,8 +317,8 @@ class TestBuildAssContent:

    def test_both_title_and_subtitle(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="Title",
            subtitle_text="Subtitle",
@@ -330,8 +330,8 @@ class TestBuildAssContent:

    def test_whitespace_title_returns_empty(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="   ",
        )
@@ -339,8 +339,8 @@ class TestBuildAssContent:

    def test_whitespace_subtitle_returns_empty(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            subtitle_text="  \n  ",
        )
@@ -348,8 +348,8 @@ class TestBuildAssContent:

    def test_title_disabled(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="Title",
            title_config={"enabled": False},
@@ -358,8 +358,8 @@ class TestBuildAssContent:

    def test_subtitle_disabled(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            subtitle_text="Sub",
            subtitle_config={"enabled": False},
@@ -368,8 +368,8 @@ class TestBuildAssContent:

    def test_title_color(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"color": "#FF0000"},
@@ -379,8 +379,8 @@ class TestBuildAssContent:

    def test_title_position_top(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"position": "top"},
@@ -390,8 +390,8 @@ class TestBuildAssContent:

    def test_title_position_bottom(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"position": "bottom"},
@@ -401,8 +401,8 @@ class TestBuildAssContent:

    def test_subtitle_position_bottom(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            subtitle_text="S",
            subtitle_config={"position": "bottom"},
@@ -411,8 +411,8 @@ class TestBuildAssContent:

    def test_title_font_size(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"size": 72},
@@ -427,8 +427,8 @@ class TestBuildAssContent:
    def test_title_font_size_frontend_field_alias(self):
        """前端传 font_size 应归一化为内部 size 字段。"""
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"font_size": 48},
@@ -442,8 +442,8 @@ class TestBuildAssContent:
    def test_title_font_color_frontend_field_alias(self):
        """前端传 font_color 应归一化为内部 color 字段。"""
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"font_color": "#FF0000"},
@@ -454,8 +454,8 @@ class TestBuildAssContent:
    def test_title_size_takes_precedence_over_font_size(self):
        """同时传 size 和 font_size 时，size 优先。"""
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"size": 56, "font_size": 28},
@@ -468,8 +468,8 @@ class TestBuildAssContent:

    def test_title_bold(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"bold": True},
@@ -482,8 +482,8 @@ class TestBuildAssContent:

    def test_title_stroke_enabled(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"stroke": {"enabled": True, "width": 3, "color": "#000000"}},
@@ -496,8 +496,8 @@ class TestBuildAssContent:

    def test_title_stroke_disabled(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"stroke": {"enabled": False, "width": 3}},
@@ -510,8 +510,8 @@ class TestBuildAssContent:

    def test_title_shadow_enabled(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            title_text="T",
            title_config={"shadow": {"enabled": True, "blur": 2, "offset_x": 2, "offset_y": 4}},
@@ -524,8 +524,8 @@ class TestBuildAssContent:

    def test_dialogue_has_correct_timing(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=65.5,
            title_text="T",
        )
@@ -534,8 +534,8 @@ class TestBuildAssContent:

    def test_dialogue_starts_at_zero(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=10.0,
            subtitle_text="S",
        )
@@ -543,8 +543,8 @@ class TestBuildAssContent:

    def test_contains_script_info_header(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=10.0,
            title_text="T",
        )
@@ -554,8 +554,8 @@ class TestBuildAssContent:

    def test_escaped_text_in_dialogue(self):
        result = build_ass_content(
-            video_width=1920,
-            video_height=1080,
+            video_width=720,
+            video_height=1280,
            video_duration=10.0,
            title_text="line1\nline2",
        )
@@ -587,9 +587,10 @@ class TestFontsizeCompensation:
        assert parts[2] == "120"

    def test_subtitle_also_compensated(self):
+        # 720p 基准宽度：只做 ASS fontsize 1.35x 补偿，不做分辨率缩放
        content = build_ass_content(
-            video_width=1080,
-            video_height=1920,
+            video_width=720,
+            video_height=1280,
            video_duration=5.0,
            subtitle_text="字幕",
            subtitle_config={"size": 24},
@@ -789,3 +790,112 @@ class TestDefaultPositionBottom:
        style_line = [line for line in content.splitlines() if line.startswith("Style: TitleStyle")][0]
        fields = [f.strip() for f in style_line.split(",")]
        assert fields[18] == "8"
+
+
+
+class TestTitleFontsizeScaling:
+    """标题/字幕字号按 video_width/720 等比缩放（工单：标题字号校准）。
+
+    前端标题面板 size 语义是"px @720p"，输出到 1080p/4K 等非 720 宽度
+    视频时需要等比放大所有长度类字段（字号/描边/阴影/边距），保证成片
+    标题视觉大小与前端预览一致。
+    """
+
+    BASE_KWARGS = dict(video_duration=5.0, title_text="标题测试", subtitle_text="字幕测试")
+
+    def _title_fontsize(self, content: str) -> int:
+        line = [ln for ln in content.splitlines() if ln.startswith("Style: TitleStyle")][0]
+        return int(line.split(",")[2])
+
+    def _subtitle_fontsize(self, content: str) -> int:
+        line = [ln for ln in content.splitlines() if ln.startswith("Style: SubtitleStyle")][0]
+        return int(line.split(",")[2])
+
+    def test_720p_title_no_scale(self):
+        """720p 宽度时只做 1.35x ASS 补偿，不做分辨率缩放。"""
+        from packages.domain.ass_subtitle_builder import ASS_FONTSIZE_COMPENSATION
+        content = build_ass_content(
+            video_width=720, video_height=1280, **self.BASE_KWARGS, title_config={"size": 28}
+        )
+        expected = round(28 * ASS_FONTSIZE_COMPENSATION)  # 38
+        assert self._title_fontsize(content) == expected
+
+    def test_1080p_title_scaled(self):
+        """1080 宽度（1080x1920 竖屏）时 size=28 → 28*1.5=42 → ASS 补偿 → round(42*1.35)=57."""
+        content = build_ass_content(
+            video_width=1080, video_height=1920, **self.BASE_KWARGS, title_config={"size": 28}
+        )
+        # 28 * 1080/720 = 42; round(42*1.35)=57
+        assert self._title_fontsize(content) == 57
+
+    def test_1920p_title_scaled(self):
+        """1920 宽度（横屏 1920x1080）时 size=28 → 28*1920/720≈75 → round(75*1.35)=101."""
+        content = build_ass_content(
+            video_width=1920, video_height=1080, **self.BASE_KWARGS, title_config={"size": 28}
+        )
+        assert self._title_fontsize(content) == 101
+
+    def test_subtitle_scaled_1080p(self):
+        """字幕默认 size=24 在 1080p 下也应按比例缩放：24*1.5=36 → round(36*1.35)=49."""
+        content = build_ass_content(
+            video_width=1080, video_height=1920, **self.BASE_KWARGS, subtitle_config={"size": 24}
+        )
+        assert self._subtitle_fontsize(content) == 49
+
+    def test_stroke_width_scaled(self):
+        """描边宽度（Style 字段 Outline=16 索引）按同比例缩放。"""
+        content = build_ass_content(
+            video_width=1080,
+            video_height=1920,
+            **self.BASE_KWARGS,
+            title_config={"size": 36, "stroke": {"enabled": True, "width": 4, "color": "#000000"}},
+        )
+        line = [ln for ln in content.splitlines() if ln.startswith("Style: TitleStyle")][0]
+        fields = [f.strip() for f in line.split(",")]
+        # Outline width 字段索引 16
+        outline = float(fields[16])
+        # 4 * 1.5 = 6
+        assert outline == 6.0
+
+    def test_shadow_offset_scaled(self):
+        """阴影偏移 x/y（Shadow 字段 17 存单值；验证 style line 中无异常）。
+        shadow 同时注入 \\4a/\\xshad/\\yshad 级标签，这里检查 style line。"""
+        content = build_ass_content(
+            video_width=1080,
+            video_height=1920,
+            **self.BASE_KWARGS,
+            title_config={"size": 36, "shadow": {"enabled": True, "offset_x": 4, "offset_y": 4, "blur": 0}},
+        )
+        # 不应崩溃；检查存在 shadow 字段
+        assert "TitleStyle" in content
+
+    def test_margins_scaled(self):
+        """MarginL/MarginR/MarginV（字段 19/20/21）按同比例缩放。"""
+        content = build_ass_content(
+            video_width=1080,
+            video_height=1920,
+            **self.BASE_KWARGS,
+            title_config={"size": 36, "position": "top"},
+        )
+        line = [ln for ln in content.splitlines() if ln.startswith("Style: TitleStyle")][0]
+        fields = [f.strip() for f in line.split(",")]
+        # 默认 TITLE_MARGIN_TOP=180, TITLE_MARGIN_SIDE=40, 1080/720=1.5
+        assert int(fields[19]) == 60  # margin_l = 40*1.5 = 60
+        assert int(fields[20]) == 60  # margin_r = 60
+        assert int(fields[21]) == 270  # margin_v = 180*1.5 = 270
+
+    def test_line_overrides_size_scaled(self):
+        """逐行覆盖 size 也按比例缩放（标题 line_overrides）。"""
+        content = build_ass_content(
+            video_width=1080,
+            video_height=1920,
+            video_duration=5.0,
+            title_text="第一行\\N第二行",
+            title_config={
+                "size": 36,
+                "line_overrides": [{"line_index": 0, "size": 72}],
+            },
+        )
+        # 行 0 应注入 \\fs 标签：72 * 1.5 = 108，然后 ASS 补偿仅作用于 style fontsize，inline fs 已是 PlayRes 像素
+        assert "\\fs108" in content
+
@@ -143,7 +143,7 @@ class TestGenerateAssFromTimeline:
            generate_ass_from_timeline(
                output_path,
                timeline,
-                video_width=1280,
+                video_width=720,
                video_height=720,
                subtitle_config={
                    "font": "微软雅黑",
@@ -684,8 +684,8 @@ class TestGenerateAssFromTimelineMore:
            generate_ass_from_timeline(
                output,
                timeline,
-                video_width=1920,
-                video_height=1080,
+                video_width=720,
+                video_height=1280,
                subtitle_config={"size": 48},
            )
            content = output.read_text(encoding="utf-8")
@@ -706,10 +706,10 @@ class TestGenerateAssFromTimelineMore:
        )
        with tempfile.TemporaryDirectory() as tmpdir:
            output = Path(tmpdir) / "720p.ass"
-            generate_ass_from_timeline(output, timeline, video_width=1280, video_height=720)
+            generate_ass_from_timeline(output, timeline, video_width=720, video_height=1280)
            content = output.read_text(encoding="utf-8")
-            assert "PlayResX: 1280" in content
-            assert "PlayResY: 720" in content
+            assert "PlayResX: 720" in content
+            assert "PlayResY: 1280" in content

    def test_special_characters_in_text(self):
        """字幕文本含特殊字符（花括号、换行）"""
@@ -31,7 +31,7 @@ class TestFontSize:
            title_text="测试标题",
            title_config=config,
        )
-        assert ",49," in content, f"默认字号36应补偿为49(36*1.35)，实际内容: {content}"
+        assert ",73," in content, f"默认字号36应缩放+补偿为73(36*1.5*1.35)，实际内容: {content}"

    def test_size_32_preserved(self):
        """size=32 应原样使用。"""
@@ -43,7 +43,7 @@ class TestFontSize:
            title_text="测试标题",
            title_config=config,
        )
-        assert ",43," in content  # 32*1.35=43
+        assert ",65," in content  # 32*1.5*1.35=65

    def test_size_60_preserved(self):
        """size=60 应原样保留（字号上限已移除）。"""
@@ -58,7 +58,7 @@ class TestFontSize:
        style_line = [line for line in content.splitlines() if line.startswith("Style: TitleStyle")][0]
        fields = [f.strip() for f in style_line.split(",")]
        font_size = int(fields[2])
-        assert font_size == 81, f"字号60应补偿为81(60*1.35), 实际={font_size}"
+        assert font_size == 122, f"字号60应缩放+补偿为122(60*1.5*1.35), 实际={font_size}"

    def test_font_size_alias_normalized(self):
        """前端传 font_size 应归一化为 size。"""
@@ -72,7 +72,7 @@ class TestFontSize:
        )
        style_line = [line for line in content.splitlines() if line.startswith("Style: TitleStyle")][0]
        fields = [f.strip() for f in style_line.split(",")]
-        assert fields[2] == "70", f"font_size=52 应补偿为70(52*1.35), 实际={fields[2]}"
+        assert fields[2] == "105", f"font_size=52 应缩放+补偿为105(52*1.5*1.35), 实际={fields[2]}"

    def test_font_color_alias_normalized(self):
        """前端传 font_color 应归一化为 color。"""
@@ -97,7 +97,7 @@ class TestFontSize:
            title_text="测试标题",
            title_config=config,
        )
-        assert ",32," in content  # 24*1.35=32.4→32
+        assert ",49," in content  # 24*1.5*1.35=49.4→32


 class TestBooleanStrokeNormalization:
@@ -117,7 +117,7 @@ class TestBooleanStrokeNormalization:
        style_line = [line for line in content.splitlines() if line.startswith("Style: TitleStyle")][0]
        fields = [f.strip() for f in style_line.split(",")]
        outline_width = float(fields[16])
-        assert outline_width == 2.0, f"stroke=true 应产生 outline_width=2, 实际={outline_width}"
+        assert outline_width == 3.0, f"stroke=true 应产生 outline_width=3(2*1.5 scale), 实际={outline_width}"

    def test_stroke_false_no_outline(self):
        """stroke=false 应生成 outline_width=0 的样式。"""
@@ -147,7 +147,7 @@ class TestBooleanStrokeNormalization:
        style_line = [line for line in content.splitlines() if line.startswith("Style: TitleStyle")][0]
        fields = [f.strip() for f in style_line.split(",")]
        outline_width = float(fields[16])
-        assert outline_width == 3.0, f"自定义stroke width=3 应保留, 实际={outline_width}"
+        assert outline_width == 4.5, f"自定义stroke width=3 @1080p 应缩放为4.5(3*1.5), 实际={outline_width}"


 class TestBooleanShadowNormalization:
@@ -167,7 +167,7 @@ class TestBooleanShadowNormalization:
        fields = [f.strip() for f in style_line.split(",")]
        # Shadow 字段是第18个（索引17）
        shadow_depth = int(fields[17])
-        assert shadow_depth == 2, f"shadow=true 应产生 shadow_depth=2, 实际={shadow_depth}"
+        assert shadow_depth == 3, f"shadow=true @1080p 应产生 shadow_depth=3(2*1.5), 实际={shadow_depth}"

    def test_shadow_false_no_shadow(self):
        """shadow=false 应生成 shadow_depth=0 的样式。"""
@@ -197,7 +197,7 @@ class TestBooleanShadowNormalization:
        style_line = [line for line in content.splitlines() if line.startswith("Style: TitleStyle")][0]
        fields = [f.strip() for f in style_line.split(",")]
        shadow_depth = int(fields[17])
-        assert shadow_depth == 3, f"自定义shadow offset_y=3 应保留, 实际={shadow_depth}"
+        assert shadow_depth == 4, f"自定义shadow offset_y=3 @1080p 应缩放为4(3*1.5), 实际={shadow_depth}"


 class TestFullStyleConsistency:
@@ -231,14 +231,14 @@ class TestFullStyleConsistency:

        # Fontname
        assert fields[1] == "Noto Sans SC"
-        # Fontsize = 28*1.35=37.8→38
-        assert fields[2] == "38"
+        # Fontsize = 28*1.5*1.35=56.7→57
+        assert fields[2] == "57"  # 28*1.5*1.35=57
        # Bold = -1 (True)
        assert fields[7] == "-1"
-        # Outline width = 2 (前端默认 stroke width)
-        assert float(fields[16]) == 2.0
-        # Shadow depth = 2 (offset_y)
-        assert int(fields[17]) == 2
+        # Outline width = 2*1.5=3.0 @1080p (前端默认 stroke width 经缩放)
+        assert float(fields[16]) == 3.0
+        # Shadow depth = 2*1.5=3 @1080p (offset_y 经缩放)
+        assert int(fields[17]) == 3
        # Alignment = 8 (top)
        assert int(fields[18]) == 8

@@ -944,7 +944,7 @@ class TestDrawtextFontFileIncluded(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_fontfile_in_output(self, mock_font):
        mock_font.return_value = "/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc"
-        result = build_title_drawtext_filter({"text": "标题"})
+        result = build_title_drawtext_filter({"text": "标题"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("fontfile=", result)
        self.assertIn("NotoSansCJK", result)
@@ -952,7 +952,7 @@ class TestDrawtextFontFileIncluded(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_fontfile_escaped(self, mock_font):
        mock_font.return_value = "/path/with:special'chars.ttf"
-        result = build_title_drawtext_filter({"text": "标题"})
+        result = build_title_drawtext_filter({"text": "标题"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("fontfile=", result)

@@ -963,7 +963,7 @@ class TestDrawtextFontFileNotIncluded(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_no_fontfile(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题"})
+        result = build_title_drawtext_filter({"text": "标题"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertNotIn("fontfile=", result)

@@ -972,14 +972,14 @@ class TestDrawtextStrokeBranches(unittest.TestCase):
    """stroke 各分支覆盖。"""

    def test_stroke_non_bool_non_dict(self):
-        result = build_title_drawtext_filter({"text": "标题", "stroke": "yes"})
+        result = build_title_drawtext_filter({"text": "标题", "stroke": "yes"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertNotIn("borderw", result)

    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_stroke_dict_default_color(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "stroke": {"width": 4}})
+        result = build_title_drawtext_filter({"text": "标题", "stroke": {"width": 4}}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("borderw=4", result)
        self.assertIn("bordercolor=000000", result)
@@ -987,14 +987,14 @@ class TestDrawtextStrokeBranches(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_stroke_dict_enabled_false(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "stroke": {"enabled": False, "width": 5}})
+        result = build_title_drawtext_filter({"text": "标题", "stroke": {"enabled": False, "width": 5}}, output_width=720)
        self.assertIsNotNone(result)
        self.assertNotIn("borderw", result)

    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_stroke_dict_custom_color(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "stroke": {"width": 2, "color": "#ff0000"}})
+        result = build_title_drawtext_filter({"text": "标题", "stroke": {"width": 2, "color": "#ff0000"}}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("bordercolor=ff0000", result)

@@ -1005,7 +1005,7 @@ class TestDrawtextShadowBranches(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_shadow_dict_default_color(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "shadow": {"offset_x": 5, "offset_y": 5}})
+        result = build_title_drawtext_filter({"text": "标题", "shadow": {"offset_x": 5, "offset_y": 5}}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("shadowcolor=000000", result)
        self.assertIn("shadowx=5", result)
@@ -1014,7 +1014,7 @@ class TestDrawtextShadowBranches(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_shadow_dict_disabled(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "shadow": {"enabled": False}})
+        result = build_title_drawtext_filter({"text": "标题", "shadow": {"enabled": False}}, output_width=720)
        self.assertIsNotNone(result)
        self.assertNotIn("shadowcolor", result)

@@ -1022,7 +1022,8 @@ class TestDrawtextShadowBranches(unittest.TestCase):
    def test_shadow_dict_custom_color(self, mock_font):
        mock_font.return_value = ""
        result = build_title_drawtext_filter(
-            {"text": "标题", "shadow": {"color": "#555555", "offset_x": 1, "offset_y": 1}}
+            {"text": "标题", "shadow": {"color": "#555555", "offset_x": 1, "offset_y": 1}},
+            output_width=720,
        )
        self.assertIsNotNone(result)
        self.assertIn("shadowcolor=555555", result)
@@ -1030,13 +1031,13 @@ class TestDrawtextShadowBranches(unittest.TestCase):

 class TestDrawtextBoldFalse(unittest.TestCase):
    def test_bold_false(self):
-        result = build_title_drawtext_filter({"text": "标题", "bold": False})
+        result = build_title_drawtext_filter({"text": "标题", "bold": False}, output_width=720)
        self.assertIsNotNone(result)
        self.assertNotIn("font=bold", result)

    def test_bold_true_does_not_use_font_bold_param(self):
        """粗体模式不得使用 `font=bold`——该参数无效，会导致 filter_complex 解析失败（exit 234）。"""
-        result = build_title_drawtext_filter({"text": "标题", "bold": True})
+        result = build_title_drawtext_filter({"text": "标题", "bold": True}, output_width=720)
        self.assertIsNotNone(result)
        self.assertNotIn("font=bold", result)
        # 粗体应通过 borderw 实现
@@ -1047,7 +1048,7 @@ class TestDrawtextBoldFalse(unittest.TestCase):
        """默认 bold=true 且无 Bold 字体文件时，使用黑色细描边（borderw=2 + 黑），
        不得使用与文字同色的 borderw>=3（否则会造成竖屏小字号重影）。"""
        mock_font.return_value = ""  # 无粗体字体
-        result = build_title_drawtext_filter({"text": "标题"})
+        result = build_title_drawtext_filter({"text": "标题"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("borderw=2", result)
        # 黑描边：要么是 black 关键字，要么是 000000
@@ -1059,7 +1060,8 @@ class TestDrawtextBoldFalse(unittest.TestCase):
        """用户显式开启 stroke 时，stroke 颜色/宽度优先于默认粗体黑边。"""
        mock_font.return_value = ""
        result = build_title_drawtext_filter(
-            {"text": "标题", "bold": True, "stroke": {"width": 4, "color": "#ffffff"}}
+            {"text": "标题", "bold": True, "stroke": {"width": 4, "color": "#ffffff"}},
+            output_width=720,
        )
        self.assertIsNotNone(result)
        self.assertIn("borderw=4", result)
@@ -1072,21 +1074,21 @@ class TestDrawtextPositionBranches(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_position_top_explicit(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "position": "top"})
+        result = build_title_drawtext_filter({"text": "标题", "position": "top"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("y=50", result)

    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_position_center_explicit(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "position": "center"})
+        result = build_title_drawtext_filter({"text": "标题", "position": "center"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("y=(h-text_h)/2", result)

    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_position_bottom_explicit(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "position": "bottom"})
+        result = build_title_drawtext_filter({"text": "标题", "position": "bottom"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("y=h-text_h-50", result)

@@ -1095,7 +1097,7 @@ class TestDrawtextPositionBranches(unittest.TestCase):
        """自定义位置：百分比坐标转换为 drawtext 表达式."""
        mock_font.return_value = ""
        # pos_x=50, pos_y=30 → x=(w-text_w)*0.5000, y=(h-text_h)*0.3000
-        result = build_title_drawtext_filter({"text": "标题", "position": "custom", "pos_x": 50, "pos_y": 30})
+        result = build_title_drawtext_filter({"text": "标题", "position": "custom", "pos_x": 50, "pos_y": 30}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("x=(w-text_w)*0.5000", result)
        self.assertIn("y=(h-text_h)*0.3000", result)
@@ -1104,7 +1106,7 @@ class TestDrawtextPositionBranches(unittest.TestCase):
    def test_position_custom_clamped_to_100(self, mock_font):
        """自定义位置：超过100的坐标被截断到100%."""
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "position": "custom", "pos_x": 100.7, "pos_y": 200.3})
+        result = build_title_drawtext_filter({"text": "标题", "position": "custom", "pos_x": 100.7, "pos_y": 200.3}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("x=(w-text_w)*1.0000", result)
        self.assertIn("y=(h-text_h)*1.0000", result)
@@ -1112,7 +1114,7 @@ class TestDrawtextPositionBranches(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_position_custom_bool_coords_fallback(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "position": "custom", "pos_x": True, "pos_y": True})
+        result = build_title_drawtext_filter({"text": "标题", "position": "custom", "pos_x": True, "pos_y": True}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("x=(w-text_w)/2", result)
        self.assertIn("y=50", result)
@@ -1120,7 +1122,7 @@ class TestDrawtextPositionBranches(unittest.TestCase):

 class TestDrawtextColorNoHash(unittest.TestCase):
    def test_color_without_hash(self):
-        result = build_title_drawtext_filter({"text": "标题", "font_color": "red"})
+        result = build_title_drawtext_filter({"text": "标题", "font_color": "red"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("fontcolor=red", result)

@@ -1131,27 +1133,27 @@ class TestDrawtextFieldNormalization(unittest.TestCase):
    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_content_fallback(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"content": "备用标题"})
+        result = build_title_drawtext_filter({"content": "备用标题"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("备用标题", result)

    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_font_preset_fallback(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "font_preset": "楷体"})
+        result = build_title_drawtext_filter({"text": "标题", "font_preset": "楷体"}, output_width=720)
        self.assertIsNotNone(result)

    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_size_fallback(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "size": 72})
+        result = build_title_drawtext_filter({"text": "标题", "size": 72}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("fontsize=72", result)

    @patch("packages.domain.video_filter_builder._resolve_font_path")
    def test_color_fallback(self, mock_font):
        mock_font.return_value = ""
-        result = build_title_drawtext_filter({"text": "标题", "color": "#abcdef"})
+        result = build_title_drawtext_filter({"text": "标题", "color": "#abcdef"}, output_width=720)
        self.assertIsNotNone(result)
        self.assertIn("fontcolor=abcdef", result)

@@ -1256,5 +1258,79 @@ class TestTitleOverlay(unittest.TestCase):
        )


+
+
+class TestDrawtextFontsizeScaling(unittest.TestCase):
+    """字号/描边/阴影/边距按 video_width/720 等比缩放（工单：标题字号校准）。
+
+    前端标题面板的 size 语义是"px @720p"（见 web/src/pages/generate/types.ts 注释、
+    apps/web/src/pages/ai-avatar/utils/titleCanvas.ts scale=videoWidth/720）。
+    输出视频宽度不是 720 时（如 1080x1920 竖屏、1920x1080 横屏），
+    drawtext 降级路径需等比缩放所有长度类字段，保证成片标题视觉大小与预览一致。
+    """
+
+    @patch("packages.domain.video_filter_builder._resolve_font_path")
+    def test_720p_no_scaling(self, mock_font):
+        """720p 宽度时 fontsize 保持原值。"""
+        mock_font.return_value = ""
+        r = build_title_drawtext_filter({"text": "标题", "size": 28}, output_width=720)
+        self.assertIn("fontsize=28", r)
+
+    @patch("packages.domain.video_filter_builder._resolve_font_path")
+    def test_1080p_scales_1_5x(self, mock_font):
+        """1080 宽度（1080x1920 竖屏）时 size=28 → 42。"""
+        mock_font.return_value = ""
+        r = build_title_drawtext_filter({"text": "标题", "size": 28}, output_width=1080)
+        self.assertIn("fontsize=42", r)
+
+    @patch("packages.domain.video_filter_builder._resolve_font_path")
+    def test_1920p_scales_2_67x(self, mock_font):
+        """1920 宽度（横屏 1920x1080）时 size=28 → 75（四舍五入）。"""
+        mock_font.return_value = ""
+        r = build_title_drawtext_filter({"text": "标题", "size": 28}, output_width=1920)
+        self.assertIn("fontsize=75", r)
+
+    @patch("packages.domain.video_filter_builder._resolve_font_path")
+    def test_stroke_width_scaled(self, mock_font):
+        """描边宽度按同比例缩放。"""
+        mock_font.return_value = ""
+        r = build_title_drawtext_filter(
+            {"text": "标题", "stroke": {"width": 4, "color": "#ff0000"}},
+            output_width=1080,
+        )
+        # 4 * 1080/720 = 6
+        self.assertIn("borderw=6", r)
+        self.assertIn("bordercolor=ff0000", r)
+
+    @patch("packages.domain.video_filter_builder._resolve_font_path")
+    def test_shadow_offset_scaled(self, mock_font):
+        """阴影偏移按同比例缩放。"""
+        mock_font.return_value = ""
+        r = build_title_drawtext_filter(
+            {"text": "标题", "shadow": {"offset_x": 5, "offset_y": 5}},
+            output_width=1080,
+        )
+        # 5 * 1.5 = 7.5 → 8
+        self.assertIn("shadowx=8", r)
+        self.assertIn("shadowy=8", r)
+
+    @patch("packages.domain.video_filter_builder._resolve_font_path")
+    def test_position_offsets_scaled(self, mock_font):
+        """top/bottom 距边缘的 50px 边距也按比例缩放。"""
+        mock_font.return_value = ""
+        r_top = build_title_drawtext_filter({"text": "标题", "position": "top"}, output_width=1080)
+        self.assertIn("y=75", r_top)  # 50 * 1.5 = 75
+        r_bot = build_title_drawtext_filter({"text": "标题", "position": "bottom"}, output_width=1080)
+        self.assertIn("y=h-text_h-75", r_bot)
+
+    @patch("packages.domain.video_filter_builder._resolve_font_path")
+    def test_bold_stroke_scaled(self, mock_font):
+        """粗体黑色描边默认宽度 2 也需缩放。"""
+        mock_font.return_value = ""
+        r = build_title_drawtext_filter({"text": "标题", "bold": True}, output_width=1080)
+        # bold 默认 border_width=2 → 2*1.5=3
+        self.assertIn("borderw=3", r)
+
+
 if __name__ == "__main__":
    unittest.main()