diff --git a/.memory/worklog.json b/.memory/worklog.json
index 11b30ff..f5f714f 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -1,19 +1,5 @@
 {
   "entries": [
-    {
-      "files_changed": 1,
-      "hash": "1e4fd9e",
-      "message": "auto-save 2026-05-13 07:15 (~1)",
-      "ts": "2026-05-13T07:15:32+08:00",
-      "type": "commit"
-    },
-    {
-      "files_changed": 1,
-      "hash": "2a5f1dd",
-      "message": "auto-save 2026-05-13 07:21 (~1)",
-      "ts": "2026-05-13T07:21:25+08:00",
-      "type": "commit"
-    },
     {
       "files_changed": 1,
       "hash": "92794f6",
@@ -3281,6 +3267,19 @@
       "type": "session-heartbeat",
       "message": "Codex 会话活跃 · 最近命令：codex · 3 项未提交变更 · 最近提交：auto-save 2026-05-14 13:04 (+1, ~3)",
       "files_changed": 3
+    },
+    {
+      "ts": "2026-05-14T13:10:42+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-14 13:10 (~5)",
+      "hash": "646f945",
+      "files_changed": 5
+    },
+    {
+      "ts": "2026-05-14T05:16:11Z",
+      "type": "session-heartbeat",
+      "message": "Codex 会话活跃 · 最近命令：codex · 3 项未提交变更 · 最近提交：auto-save 2026-05-14 13:10 (~5)",
+      "files_changed": 3
     }
   ]
 }
diff --git a/docs/source-analysis.html b/docs/source-analysis.html
index 658473d..5390203 100644
--- a/docs/source-analysis.html
+++ b/docs/source-analysis.html
@@ -941,7 +941,7 @@ SubjectAsset {
             </header>
             <div class="body">
               <p><strong>问题：</strong>产品融合不能只写“人物使用产品”，还要稳定控制出场方式、景别、运镜、产品入画、佩戴贴合、使用感受和收尾；同时 SKG 产品是颈部/肩颈按摩仪，比例和佩戴位置不能跑偏。</p>
-              <p><strong>改动：</strong>前端内置 36 条产品融合镜头语言模板，6 条为一组，对应建立出场、产品入画、佩戴贴合、使用感受、生活延展和收尾记忆；产品融合页新增“换一组”按钮，只刷新 6 行描述词，不改变首帧、尾帧和视频结果。视频 prompt 额外写入颈部/后颈/颈肩使用部位和真实尺寸比例约束。</p>
+              <p><strong>改动：</strong>前端内置 36 条产品融合镜头语言模板，6 条为一组，对应建立出场、产品入画、佩戴贴合、使用感受、生活延展和收尾记忆；产品融合页新增“换一组”按钮，只刷新 6 行描述词，不改变已选角色和视频结果。视频 prompt 额外写入颈部/后颈/颈肩使用部位和真实尺寸比例约束。</p>
               <p><strong>影响：</strong><code>web/components/lightbox.tsx</code>、<code>web/app/page.tsx</code>、<code>docs/source-analysis.html</code>。</p>
             </div>
           </article>
diff --git a/web/components/lightbox.tsx b/web/components/lightbox.tsx
index 2adea17..194018e 100644
--- a/web/components/lightbox.tsx
+++ b/web/components/lightbox.tsx
@@ -5,7 +5,7 @@ import { X, ChevronLeft, ChevronRight, Check, Sparkles, Wand2, Loader2, Eye, Ref
 import {
   frameUrl, cleanedFrameUrl, apiAssetUrl,
   describeFrame, cleanupFrame, applyCleanedFrame, discardCleanedFrame, addElement, updateElement, deleteElement,
-  generateSceneAsset, generateSubjectAssets, resolveImageRefUrl, updateStoryboard, copyProductLibraryAsset,
+  generateSceneAsset, generateSubjectAssets, updateStoryboard, copyProductLibraryAsset,
   listCharacterLibrary, copyCharacterLibraryAssets, characterLibraryImageUrl,
   type AssetBackground, type AssetSize, type CharacterLibraryItem, type KeyFrame, type Job, type ImageRef, type ProductFusionShot, type SceneAssetRole, type SceneStyle, type SubjectKind,
 } from "@/lib/api"
@@ -194,6 +194,56 @@ const PRODUCT_FUSION_DESCRIPTION_PRESETS = [
   "备用30｜舒适微表情｜佩戴稳定后，透明骨架人眼神变柔和、嘴角轻扬，肩颈线条放松；镜头从产品细节回到脸部，保持广告级质感。",
 ]
 
+const CHARACTER_PROMPT_PROFILES: Record<string, { name: string; subject: string; scenes: string; usage: string; enjoyment: string }> = {
+  "character-01": {
+    name: "运动阳光男",
+    subject: "清爽运动阳光男透明骨架人，身形挺拔、年轻有活力，整体气质健康明亮",
+    scenes: "晨练后卧室、阳台休息区、明亮健身房休息长椅或运动后居家放松场景",
+    usage: "运动后双手拿起 SKG，准确戴到后颈和颈肩交界处，轻按侧边控制区并微调贴合",
+    enjoyment: "从运动后的颈肩紧绷变成轻松舒展，闭眼深呼吸、肩部下沉、露出阳光放松微笑",
+  },
+  "character-02": {
+    name: "都市型男",
+    subject: "都市通勤型男透明骨架人，穿搭利落，高层公寓和商务感更强",
+    scenes: "高层公寓客厅、办公桌、商务休息区、夜晚城市窗边或会议间隙",
+    usage: "久坐办公后从桌面拿起 SKG，戴到后颈，手指轻按按键，让产品稳定贴合颈肩",
+    enjoyment: "从低头疲惫、揉脖子变为靠回椅背放松，眼神平静、嘴角微扬，呈现高效恢复感",
+  },
+  "character-03": {
+    name: "优雅白领女",
+    subject: "优雅白领女透明骨架人，姿态端正、干净精致，商业广告感更高级",
+    scenes: "办公室午休区、极简卧室、化妆镜前、柔和落地窗旁或精致公寓客厅",
+    usage: "工作间隙优雅拿起 SKG，轻放到后颈，双手细致调整两端贴合，动作慢而自然",
+    enjoyment: "从肩颈紧绷转为安静舒缓，闭眼微笑、呼吸放慢，呈现精致、自洽、舒服的状态",
+  },
+  "character-04": {
+    name: "运动辣妹",
+    subject: "运动辣妹透明骨架人，线条利落、活力强，适合健身后和生活方式广告",
+    scenes: "健身房更衣区、瑜伽垫旁、阳光客厅、运动后休息区或浴室镜前",
+    usage: "训练后拿起 SKG 戴到后颈，侧头伸展时保持产品稳定贴合，手部不遮挡产品轮廓",
+    enjoyment: "从训练后的酸胀紧绷变为轻松舒展，闭眼享受、肩颈打开，表情自信舒服",
+  },
+  "character-05": {
+    name: "绅士大叔",
+    subject: "成熟绅士大叔透明骨架人，气质稳重高级，适合书房、客厅和商务休息场景",
+    scenes: "木质书房、皮质休闲椅、安静客厅、窗边阅读角或商务酒店房间",
+    usage: "阅读或工作后从桌边拿起 SKG，稳稳戴到后颈，轻扶两端调整到颈肩正确位置",
+    enjoyment: "从沉稳疲惫变为从容舒适，缓慢闭眼、肩部放松、轻轻微笑，表达成熟克制的享受",
+  },
+}
+
+const fusionDescriptionForCharacter = (characterId: string, presetIndex: number) => {
+  const base = PRODUCT_FUSION_DESCRIPTION_PRESETS[presetIndex % PRODUCT_FUSION_DESCRIPTION_PRESETS.length]
+  const profile = CHARACTER_PROMPT_PROFILES[characterId] ?? CHARACTER_PROMPT_PROFILES[DEFAULT_CHARACTER_ID]
+  return [
+    base,
+    `角色设定：${profile.subject}。`,
+    `场景倾向：${profile.scenes}。`,
+    `产品使用：${profile.usage}；产品只能在脖子、后颈、颈肩交界处使用，尺寸必须符合真实颈部按摩仪比例。`,
+    `享受状态：${profile.enjoyment}；不要医疗治疗承诺，不要恐怖解剖感。`,
+  ].join("\n")
+}
+
 const legacyFusionDescriptionSet = new Set(LEGACY_PRODUCT_FUSION_DESCRIPTION_PRESETS)
 const shouldUseDefaultFusionDescription = (value?: string | null) => {
   const text = value?.trim()