fix(generate): Step6 本地上传封面走 OSS + 标题样式恢复 Modal 弹窗模式

- Step6CoverSettings: 单视频本地上传封面时，使用 uploadAssetDirect 实际上传到图片素材库 OSS，拿到真实 URL 再 set；上传期间按钮 loading；原 useEffect 把 setOnUploadFile 置为 null 改为注册 uploadLocalCover 处理函数
- GeneratePage.handleFinish: 增加 blob: URL 兜底过滤（blob: URL 是浏览器本地临时地址，后端无法下载，此时不传 cover_url 让后端回退自动截帧封面，避免 400 保存失败）；custom_title 空串不传 undefined
- 新增 TitleStyleModal 组件：标题样式改为弹窗模式（参考封面模板/字幕模板 Modal），内置「爆款预设」+「自定义」两个 Tab，底部取消/保存按钮，保存才提交草稿到父组件
- Step4TitleSettings: 移除内联 TitleStylePanel，改为「标题样式」按钮 + Modal 触发入口

Closes: Step6「完成」按钮保存失败 + 标题设置内联铺参数回归

apps/web/src/pages/generate/GeneratePage.tsx

@@ -441,19 +441,24 @@ const GeneratePage: React.FC = () => {
         await Promise.all(
           batchTasks.map(async (task) => {
             const vi = task.variantIndex
-            const coverUrl = previewCovers[vi] || ""
+            const rawCoverUrl = previewCovers[vi] || ""
+            const coverUrl = rawCoverUrl.startsWith("blob:") ? "" : rawCoverUrl
             const title = previewTitles[vi] || titleSettings.title || ""
             return finalizeGeneration(task.taskId, {
               cover_url: coverUrl || undefined,
-              custom_title: title,
+              custom_title: title || undefined,
             })
           }),
         )
       } else if (singleTaskId) {
-        const coverUrl = coverSettings.thumbnail_url || coverSettings.upload_url || ""
+        // 单视频：cover_url 仅在非 blob: 本地预览地址时才传；blob: URL 浏览器本地临时地址，
+        // 后端无法下载，此时不传让后端回退自动截帧封面（避免 400 保存失败）。
+        // 正常流程本地上传完成后 uploadLocalCover 会把 URL 替换为 OSS 真实 URL，这里仅兜底异常场景。
+        const rawCoverUrl = coverSettings.thumbnail_url || coverSettings.upload_url || ""
+        const coverUrl = rawCoverUrl.startsWith("blob:") ? "" : rawCoverUrl
         await finalizeGeneration(singleTaskId, {
           cover_url: coverUrl || undefined,
-          custom_title: titleSettings.title || "",
+          custom_title: titleSettings.title || undefined,
         })
       } else {
         console.warn("[handleFinish] 未找到任务 ID，跳过 finalize 直接跳转")

apps/web/src/pages/generate/components/Step4TitleSettings.tsx

@@ -6,13 +6,12 @@
  * - 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 } from "react"
+import React, { useMemo, useState } 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 TitleLibraryAutoComplete from "./title/TitleLibraryAutoComplete"
-import TitleStylePanel from "./title/TitleStylePanel"
+import TitleStyleModal from "./title/TitleStyleModal"
+import Button from "@/components/ui/Button"
 import type { TitleTemplate } from "@/components/title/template-types"
 
 interface Step4TitleSettingsProps {
@@ -58,13 +57,6 @@ interface Step4TitleSettingsProps {
 const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
   const t = useStep4Title(props)
   const {
-    onUpdatePosition,
-    onUpdateFont,
-    onUpdateSize,
-    onToggleBold,
-    onToggleItalic,
-    onToggleStroke,
-    onToggleShadow,
     onApplyPreset,
     onUpdateStyle,
     activePreset,
@@ -72,14 +64,12 @@ const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
     previewCount = 1,
     previewTitles,
     onPreviewTitlesChange,
-    enableTemplates,
-    selectedTemplateId,
-    onApplyTemplate,
     onConfirmGenerate,
     generating,
     selectedCount = 1,
   } = props
 
+  const [showTitleStyleModal, setShowTitleStyleModal] = useState(false)
   const isBatch = previewCount > 1
 
   /** 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） */
@@ -184,27 +174,30 @@ const Step4TitleSettings: React.FC<Step4TitleSettingsProps> = (props) => {
         </div>
       )}
 
-      {/* 标题样式面板（全局共用） */}
-      <TitleStylePanel
+      {/* 标题样式：点击打开弹窗（参考字幕模板/封面模板 Modal 模式） */}
+      <TitleStyleModal
+        open={showTitleStyleModal}
+        onClose={() => setShowTitleStyleModal(false)}
+        titleText={previewTitles?.[0] ?? t.titleSettings.title}
         settings={t.titleSettings}
-        onUpdatePosition={onUpdatePosition}
-        onUpdateFont={onUpdateFont}
-        onUpdateSize={onUpdateSize}
-        onToggleBold={onToggleBold}
-        onToggleItalic={onToggleItalic}
-        onToggleStroke={onToggleStroke}
-        onToggleShadow={onToggleShadow}
-        onApplyPreset={onApplyPreset}
-        onUpdateStyle={onUpdateStyle}
-        showCoverToggle
         activePreset={activePreset}
-        titlePresets={titlePresets}
-        POSITION_OPTIONS={POSITION_OPTIONS}
-        FONT_OPTIONS={FONT_OPTIONS}
-        enableTemplates={enableTemplates}
-        selectedTemplateId={selectedTemplateId}
-        onApplyTemplate={onApplyTemplate}
+        onSave={(nextSettings, nextPreset) => {
+          onUpdateStyle?.(nextSettings)
+          if (nextPreset) onApplyPreset(nextPreset)
+        }}
       />
+      <div className="xx-form-field">
+        <label>标题样式</label>
+        <Button
+          buttonType="ghost"
+          onClick={() => setShowTitleStyleModal(true)}
+          style={{ justifyContent: "flex-start", textAlign: "left" }}
+        >
+          {activePreset
+            ? titlePresets.find((p) => p.key === activePreset)?.label || "自定义样式"
+            : "点击选择标题样式（预设 / 字体 / 颜色 / 描边 / 阴影）"}
+        </Button>
+      </div>
     </div>
   )
 }

apps/web/src/pages/generate/components/Step6CoverSettings.tsx

@@ -5,8 +5,8 @@
  *
  * 模板 CRUD + 编辑器弹窗 + 自动生成 + 上传 复用 components/cover/useSharedCover
  */
-import React, { useEffect, useMemo } from "react"
-import { Modal, Spin } from "antd"
+import React, { useCallback, useEffect, useMemo, useState } from "react"
+import { Modal, Spin, message } from "antd"
 import { LoadingOutlined } from "@ant-design/icons"
 import type { CoverConfig } from "../types/cover"
 import type { GeneratedVideo } from "@/api/template-editor"
@@ -17,6 +17,7 @@ import CoverSettingsModal from "./cover-settings/CoverSettingsModal"
 import CoverEditorModal from "./cover-settings/CoverEditorModal"
 import { useSharedCover } from "@/components/cover/useSharedCover"
 import { generateCover as apiGenerateCover } from "@/api/generation"
+import { uploadAssetDirect, getAssetLibraries } from "@/api/assets"
 
 interface Step6CoverSettingsProps {
   coverSettings: CoverConfig
@@ -159,9 +160,65 @@ const Step6CoverSettings: React.FC<Step6CoverSettingsProps> = (props) => {
     }
   }, [isBatch, shared.selectedTemplateId, parentSelectedTemplate, onTemplateChange])
 
+  /** 单视频本地上传封面：选完文件后上传到素材库 OSS，拿到真实 URL 再 set */
+  const [uploadingLocalCover, setUploadingLocalCover] = useState(false)
+  const { coverSettings: curCoverSettings, onCoverSettingsChange } = props
+  const uploadLocalCover = useCallback(
+    async (file: File): Promise<string | null> => {
+      const hide = message.loading("正在上传封面...", 0)
+      setUploadingLocalCover(true)
+      try {
+        // 立即创建 blob URL 用于即时预览，同时异步上传 OSS
+        const previewUrl = URL.createObjectURL(file)
+        onCoverSettingsChange({
+          ...curCoverSettings,
+          upload_url: previewUrl,
+          thumbnail_url: previewUrl,
+          mode: "upload",
+        })
+        // 查找图片素材库（复用批量封面的逻辑）
+        const libs = await getAssetLibraries()
+        const imageLib = libs.find((l) => l.kind === "image") || libs[0]
+        if (!imageLib) {
+          hide()
+          message.error("未找到素材库，请先创建图片素材库")
+          return previewUrl
+        }
+        const result = await uploadAssetDirect({ file, library_id: imageLib.id })
+        const realUrl = result?.url || ""
+        if (!realUrl) {
+          hide()
+          message.warning("上传完成但未获取到URL，将使用本地预览")
+          return previewUrl
+        }
+        hide()
+        // 替换 blob URL 为真实 OSS URL（blob 用于预览过渡，finalize 时必须用真实 URL）
+        onCoverSettingsChange({
+          ...curCoverSettings,
+          upload_url: realUrl,
+          thumbnail_url: realUrl,
+          mode: "upload",
+        })
+        message.success("封面上传成功")
+        return realUrl
+      } catch (err) {
+        hide()
+        console.error("[Step6] 封面上传失败:", err)
+        message.error("封面上传失败，请重试")
+        return null
+      } finally {
+        setUploadingLocalCover(false)
+      }
+    },
+    [curCoverSettings, onCoverSettingsChange],
+  )
   useEffect(() => {
-    shared.setOnUploadFile(() => null)
-  }, [shared])
+    // 单视频：注册实际上传函数；批量场景已由 batchCovers.uploadOne 接管，
+    // 这里不要覆盖（批量时 input ref 绑定到 batchUploadRef，不走 shared.handleFileInputChange）
+    if (!isBatch) {
+      shared.setOnUploadFile((file) => uploadLocalCover(file))
+    }
+  }, [shared, isBatch, uploadLocalCover])
 
   const batchUploadRef = React.useRef<HTMLInputElement>(null)
   const [batchUploadCard, setBatchUploadCard] = React.useState<number | null>(null)
@@ -399,7 +456,12 @@ const Step6CoverSettings: React.FC<Step6CoverSettingsProps> = (props) => {
         <Button buttonType="ghost" onClick={() => shared.setShowCoverSettings(true)}>
           ⚙️ 封面模板
         </Button>
-        <Button buttonType="ghost" onClick={shared.handleUploadClick}>
+        <Button
+          buttonType="ghost"
+          onClick={shared.handleUploadClick}
+          disabled={uploadingLocalCover}
+          loading={uploadingLocalCover}
+        >
           📷 本地上传
         </Button>
         <input
@@ -407,18 +469,7 @@ const Step6CoverSettings: React.FC<Step6CoverSettingsProps> = (props) => {
           type="file"
           accept="image/*"
           style={{ display: "none" }}
-          onChange={(e) => {
-            const file = e.target.files?.[0]
-            e.target.value = ""
-            if (!file) return
-            const url = URL.createObjectURL(file)
-            props.onCoverSettingsChange({
-              ...props.coverSettings,
-              upload_url: url,
-              thumbnail_url: url,
-              mode: "upload",
-            })
-          }}
+          onChange={shared.handleFileInputChange}
         />
         <input
           ref={batchUploadRef}

apps/web/src/pages/generate/components/title/TitleStyleModal.css

@@ -0,0 +1,90 @@
+.tsm-body {
+  padding: 0;
+}
+
+.tsm-preview {
+  width: 100%;
+  background: #111;
+  border-radius: 8px;
+  padding: 12px;
+  margin-bottom: 16px;
+  display: flex;
+  justify-content: center;
+  overflow: hidden;
+}
+
+.tsm-presets-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
+  gap: 12px;
+  max-height: 440px;
+  overflow-y: auto;
+  padding: 4px 2px 8px;
+}
+
+.tsm-preset-card {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  background: #fff;
+  border: 2px solid #e5e7eb;
+  border-radius: 10px;
+  padding: 8px 6px 6px;
+  cursor: pointer;
+  transition: all 0.15s ease;
+  overflow: hidden;
+}
+.tsm-preset-card:hover {
+  border-color: #c4b5fd;
+  transform: translateY(-1px);
+  box-shadow: 0 4px 10px rgba(124, 58, 237, 0.12);
+}
+.tsm-preset-card.active {
+  border-color: #7c3aed;
+  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.18);
+}
+
+.tsm-preset-preview {
+  width: 100%;
+  aspect-ratio: 9 / 16;
+  background: #1a1a1a;
+  border-radius: 6px;
+  overflow: hidden;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.tsm-preset-meta {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  margin-top: 6px;
+  font-size: 12px;
+  color: #374151;
+}
+.tsm-preset-emoji {
+  font-size: 14px;
+}
+.tsm-preset-label {
+  font-weight: 500;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  max-width: 100px;
+}
+
+.tsm-custom-panel {
+  max-height: 440px;
+  overflow-y: auto;
+  padding: 4px 2px 8px;
+}
+
+.tsm-footer {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+  padding-top: 16px;
+  margin-top: 16px;
+  border-top: 1px solid #f3f4f6;
+}

apps/web/src/pages/generate/components/title/TitleStyleModal.tsx

@@ -0,0 +1,189 @@
+/**
+ * 标题样式弹窗（Step3/智能剪辑用）
+ *
+ * 交互：
+ * - 点击"标题样式"按钮/卡片打开
+ * - 默认 Tab「预设」：10 个爆款预设卡片网格（Canvas 实时预览），点击选中
+ * - Tab「自定义」：详细参数（位置/字体/字号/粗斜/描边/阴影/颜色/背景）
+ * - 底部「取消」「保存」按钮：保存才会把临时编辑的 settings 应用到父组件
+ *
+ * 设计参考：CoverSettingsModal / 字幕模板选择弹窗
+ */
+import React, { useEffect, useState } from "react"
+import { Tabs } from "antd"
+import Modal from "@/components/ui/Modal"
+import Button from "@/components/ui/Button"
+import type { TitleSettings } from "../../types"
+import { POSITION_OPTIONS } from "../../constants"
+import { FONT_OPTIONS } from "@/components/title/constants"
+import TitleStylePanel from "./TitleStylePanel"
+import TitleMiniPreview from "./TitleMiniPreview"
+import { titleStyleConfigToCamel } from "@/components/title/utils"
+import { TITLE_PRESETS as TITLE_PRESETS_DATA } from "@/components/title/constants"
+import "./TitleStyleModal.css"
+
+interface TitleStyleModalProps {
+  open: boolean
+  onClose: () => void
+  /** 当前标题文字（用于预览） */
+  titleText?: string
+  /** 当前生效的标题样式 */
+  settings: TitleSettings
+  /** 保存回调：把编辑后的 settings 回传父组件 */
+  onSave: (settings: TitleSettings, presetKey: string | null) => void
+  /** 当前选中的爆款预设 key（用于高亮） */
+  activePreset?: string | null
+}
+
+/** 把预设应用到 base settings（参考 useTitleStyleUpdaters.applyPreset 逻辑） */
+function applyPresetToSettings(base: TitleSettings, presetKey: string): TitleSettings {
+  const preset = TITLE_PRESETS_DATA.find((p) => p.key === presetKey)
+  if (!preset) return base
+  return {
+    ...base,
+    ...(titleStyleConfigToCamel(preset.style) as Partial<TitleSettings>),
+    lineOverrides: [],
+  }
+}
+
+const TitleStyleModal: React.FC<TitleStyleModalProps> = ({
+  open,
+  onClose,
+  titleText = "标题",
+  settings,
+  onSave,
+  activePreset: externalActivePreset = null,
+}) => {
+  // 弹窗内维护一份草稿 settings，点保存才提交到父组件；取消/关闭丢弃
+  const [draft, setDraft] = useState<TitleSettings>(settings)
+  const [activePreset, setActivePreset] = useState<string | null>(externalActivePreset)
+
+  // 每次打开弹窗，用父组件最新 settings 重置草稿
+  useEffect(() => {
+    if (open) {
+      setDraft(settings)
+      setActivePreset(externalActivePreset)
+    }
+  }, [open, settings, externalActivePreset])
+
+  const handleApplyPreset = (presetKey: string) => {
+    setActivePreset(presetKey)
+    const next = applyPresetToSettings(draft, presetKey)
+    setDraft(next)
+  }
+
+  const handleUpdateStyle = (patch: Partial<TitleSettings>) => {
+    setDraft((prev) => ({ ...prev, ...patch }))
+    // 手动调了参数，清除预设高亮（因为不再严格匹配某个预设）
+    setActivePreset(null)
+  }
+
+  const handleUpdatePosition = (position: string) =>
+    handleUpdateStyle({ position: position as TitleSettings["position"] })
+  const handleUpdateFont = (font: string) => handleUpdateStyle({ font })
+  const handleUpdateSize = (size: number) => handleUpdateStyle({ size })
+  const handleToggleBold = () => handleUpdateStyle({ bold: !draft.bold })
+  const handleToggleItalic = () => handleUpdateStyle({ italic: !draft.italic })
+  const handleToggleStroke = () => handleUpdateStyle({ stroke: !draft.stroke })
+  const handleToggleShadow = () => handleUpdateStyle({ shadow: !draft.shadow })
+
+  const handleSave = () => {
+    onSave(draft, activePreset)
+    onClose()
+  }
+
+  return (
+    <Modal open={open} onCancel={onClose} title="标题样式" width={720} footer={null} destroyOnClose>
+      <div className="tsm-body">
+        {/* 顶部预览 */}
+        <div className="tsm-preview">
+          <TitleMiniPreview
+            settings={draft}
+            width={640}
+            sampleText={titleText || "标题"}
+            transparent={false}
+            portrait
+          />
+        </div>
+
+        <Tabs
+          defaultActiveKey="presets"
+          size="small"
+          items={[
+            {
+              key: "presets",
+              label: "爆款预设",
+              children: (
+                <div className="tsm-presets-grid">
+                  {TITLE_PRESETS_DATA.map((p) => {
+                    const previewSettings = applyPresetToSettings(draft, p.key)
+                    const isActive = activePreset === p.key
+                    return (
+                      <button
+                        key={p.key}
+                        type="button"
+                        className={`tsm-preset-card${isActive ? " active" : ""}`}
+                        onClick={() => handleApplyPreset(p.key)}
+                        title={p.label}
+                      >
+                        <div className="tsm-preset-preview">
+                          <TitleMiniPreview
+                            settings={previewSettings}
+                            width={140}
+                            sampleText="标题"
+                          />
+                        </div>
+                        <div className="tsm-preset-meta">
+                          <span className="tsm-preset-emoji">{p.emoji}</span>
+                          <span className="tsm-preset-label">{p.label}</span>
+                        </div>
+                      </button>
+                    )
+                  })}
+                </div>
+              ),
+            },
+            {
+              key: "custom",
+              label: "自定义",
+              children: (
+                <div className="tsm-custom-panel">
+                  <TitleStylePanel
+                    settings={draft}
+                    onUpdatePosition={handleUpdatePosition}
+                    onUpdateFont={handleUpdateFont}
+                    onUpdateSize={handleUpdateSize}
+                    onToggleBold={handleToggleBold}
+                    onToggleItalic={handleToggleItalic}
+                    onToggleStroke={handleToggleStroke}
+                    onToggleShadow={handleToggleShadow}
+                    onApplyPreset={handleApplyPreset}
+                    onUpdateStyle={handleUpdateStyle}
+                    activePreset={activePreset}
+                    titlePresets={[]}
+                    POSITION_OPTIONS={POSITION_OPTIONS}
+                    FONT_OPTIONS={FONT_OPTIONS}
+                    paramsOnly
+                    hideEditor
+                  />
+                </div>
+              ),
+            },
+          ]}
+        />
+      </div>
+
+      {/* 底部按钮栏 */}
+      <div className="tsm-footer">
+        <Button buttonType="ghost" onClick={onClose}>
+          取消
+        </Button>
+        <Button buttonType="primary" onClick={handleSave}>
+          保存
+        </Button>
+      </div>
+    </Modal>
+  )
+}
+
+export default TitleStyleModal