diff --git a/video-ai-system/engines/video-api-adapter.js b/video-ai-system/engines/video-api-adapter.js
index 74b42ca..8e24ed7 100644
--- a/video-ai-system/engines/video-api-adapter.js
+++ b/video-ai-system/engines/video-api-adapter.js
@@ -9,10 +9,16 @@
  *   const { generateVideo, validateAndGenerate } = require('./video-api-adapter');
  *   const result = await validateAndGenerate({ prompt: '...', duration: 10 });
  *
+ * 输出路径优先级:
+ *   1. opts.outputPath（显式指定）
+ *   2. 外接硬盘 JZAO /Volumes/JZAO/铸渊-ICE-GL-ZY001/OUT-输出/视频/
+ *   3. 本地 fallback video-ai-system/outputs/
+ *
  * 环境变量（放在 video-ai-system/.env）:
  *   JIMENG_API_KEY=xxx       火山方舟 API Key
  *   JIMENG_BASE_URL=https://ark.cn-beijing.volces.com/api/v3
  *   JIMENG_MODEL=doubao-seedance-2-0-260128
+ *   VIDEO_OUTPUT_ROOT=/Volumes/JZAO/铸渊-ICE-GL-ZY001/OUT-输出/视频  (可选·覆盖默认)
  */
 
 const fs = require('fs');
@@ -39,6 +45,85 @@ const MODEL = process.env.JIMENG_MODEL || 'doubao-seedance-2-0-260128';
 const POLL_INTERVAL_MS = parseInt(process.env.POLL_INTERVAL_MS, 10) || 5000;
 const MAX_POLL_ATTEMPTS = parseInt(process.env.MAX_POLL_ATTEMPTS, 10) || 120; // 最多轮询10分钟
 
+// 【D135】输出路径：外接硬盘优先
+const JZAO_VIDEO_ROOT = '/Volumes/JZAO/铸渊-ICE-GL-ZY001/OUT-输出/视频';
+const LOCAL_OUTPUT_ROOT = path.resolve(__dirname, '../outputs');
+const VIDEO_OUTPUT_ROOT = (() => {
+  const env = process.env.VIDEO_OUTPUT_ROOT;
+  if (env) return env;
+  if (fs.existsSync(JZAO_VIDEO_ROOT)) return JZAO_VIDEO_ROOT;
+  return LOCAL_OUTPUT_ROOT;
+})();
+const VIDEO_REGISTRY_PATH = path.resolve(__dirname, '../outputs/video-registry.json');
+
+console.log(`[VideoAPI] 输出路径: ${VIDEO_OUTPUT_ROOT}`);
+
+/**
+ * 【D135】解析输出路径 — 外接硬盘JZAO优先，本地fallback
+ * @param {string} projectKey - 项目标识，如 "zai-fu-fei-xiu-xian/ep01"
+ * @param {string} filename - 文件名
+ * @returns {string} 完整输出路径
+ */
+function resolveOutputPath(projectKey, filename) {
+  const dir = path.join(VIDEO_OUTPUT_ROOT, projectKey);
+  if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+  return path.join(dir, filename);
+}
+
+/**
+ * 【D135】视频注册 — 镜编号→硬盘路径的双向索引
+ * 存到仓库里，人不用翻文件夹，系统毫秒级定位
+ */
+function registerVideo({ projectKey, shotId, taskId, filePath, duration, resolution, prompt }) {
+  let registry = { _meta: { updated: new Date().toISOString(), by: '铸渊 ICE-GL-ZY001' }, shots: {} };
+
+  try {
+    if (fs.existsSync(VIDEO_REGISTRY_PATH)) {
+      registry = JSON.parse(fs.readFileSync(VIDEO_REGISTRY_PATH, 'utf-8'));
+    }
+  } catch (e) {
+    // 文件损坏，重建
+  }
+
+  const key = shotId || taskId;
+  registry.shots[key] = {
+    shotId: key,
+    taskId,
+    projectKey,
+    filePath,
+    duration,
+    resolution,
+    promptPreview: (prompt || '').substring(0, 80),
+    generatedAt: new Date().toISOString(),
+    dNumber: 'D135',
+  };
+  registry._meta.updated = new Date().toISOString();
+  registry._meta.totalShots = Object.keys(registry.shots).length;
+
+  const dir = path.dirname(VIDEO_REGISTRY_PATH);
+  if (!fs.existsSync(dir)) fs.mkdirSync(dir, { recursive: true });
+  fs.writeFileSync(VIDEO_REGISTRY_PATH, JSON.stringify(registry, null, 2), 'utf-8');
+  console.log(`[VideoAPI·注册] ${key} → ${filePath}`);
+}
+
+/**
+ * 【D135】按镜编号查找视频 — 毫秒级定位
+ * @param {string} shotId
+ * @returns {{ found: boolean, filePath?: string, info?: object }}
+ */
+function findVideo(shotId) {
+  try {
+    if (!fs.existsSync(VIDEO_REGISTRY_PATH)) return { found: false };
+    const registry = JSON.parse(fs.readFileSync(VIDEO_REGISTRY_PATH, 'utf-8'));
+    const entry = registry.shots[shotId];
+    if (!entry) return { found: false };
+    const onDisk = fs.existsSync(entry.filePath);
+    return { found: true, filePath: entry.filePath, onDisk, info: entry };
+  } catch (e) {
+    return { found: false, error: e.message };
+  }
+}
+
 /**
  * HTTP POST 请求封装（Node.js 原生，无依赖）
  */
@@ -362,23 +447,26 @@ async function probeVideoDuration(videoUrl) {
 }
 
 /**
- * 生成视频（提交 + 自动轮询 + 下载）
+ * 生成视频（提交 + 自动轮询 + 下载 + 注册索引）
  * @param {object} opts
  * @param {string} opts.prompt - 视频提示词
- * @param {string} [opts.duration] - 时长
- * @param {string} [opts.resolution] - 分辨率
- * @param {string} [opts.style] - 风格 [已废弃]
- * @param {string} [opts.outputPath] - 输出路径，默认 outputs/{timestamp}.mp4
- * @returns {Promise<{videoPath: string, taskId: string, duration: string, preflight: object}>}
+ * @param {number} [opts.duration] - 时长 4-15秒
+ * @param {string} [opts.resolution] - 分辨率 480p/720p
+ * @param {string} [opts.style] - [已废弃]
+ * @param {string} [opts.outputPath] - 输出路径（可选，优先于默认JZAO路径）
+ * @param {string} [opts.shotId] - 镜编号，用于注册索引（如 'ep01-shot01'）
+ * @param {string} [opts.projectKey] - 项目标识（如 'zai-fu-fei-xiu-xian/ep01'）
+ * @returns {Promise<{videoPath: string, taskId: string, duration: number, preflight: object}>}
  */
-async function generateVideo({ prompt, duration, resolution, style, outputPath }) {
+async function generateVideo({ prompt, duration, resolution, style, outputPath, shotId, projectKey }) {
   if (!API_KEY) {
     throw new Error('未配置 JIMENG_API_KEY。请在 video-ai-system/.env 中设置。');
   }
 
   // 1. 提交任务（含预校验）
   const { taskId, preflight } = await submitTask({ prompt, duration, resolution, style });
-  const requestedDuration = preflight.corrected.duration;
+  const finalDuration = preflight.corrected.duration;
+  const finalResolution = preflight.corrected.resolution;
 
   // 2. 轮询等待
   let attempts = 0;
@@ -394,12 +482,36 @@ async function generateVideo({ prompt, duration, resolution, style, outputPath }
         console.log(`[VideoAPI] API返回的元数据:`, JSON.stringify(result.videoMeta));
       }
 
-      // 3. 下载视频
-      const finalPath = outputPath || path.resolve(__dirname, `../outputs/${taskId}.mp4`);
+      // 3. 【D135】解析输出路径 — 外接硬盘JZAO优先
+      let finalPath;
+      if (outputPath) {
+        finalPath = outputPath;
+      } else if (shotId && projectKey) {
+        // 有编号 → 走 JZAO 编号文件夹
+        finalPath = resolveOutputPath(projectKey, `${shotId}.mp4`);
+      } else {
+        // 兜底: JZAO根目录用taskId
+        finalPath = path.join(VIDEO_OUTPUT_ROOT, `${taskId}.mp4`);
+      }
+
       console.log(`[VideoAPI] 生成完成！正在下载到: ${finalPath}`);
       await downloadVideo(result.videoUrl, finalPath);
       console.log(`[VideoAPI] 视频已保存: ${finalPath}`);
-      return { videoPath: finalPath, taskId, duration: requestedDuration, preflight };
+
+      // 4. 【D135】注册视频索引 — 仓库↔硬盘双向映射
+      if (shotId || taskId) {
+        registerVideo({
+          projectKey: projectKey || 'unknown',
+          shotId: shotId || taskId,
+          taskId,
+          filePath: finalPath,
+          duration: finalDuration,
+          resolution: finalResolution,
+          prompt,
+        });
+      }
+
+      return { videoPath: finalPath, taskId, duration: finalDuration, resolution: finalResolution, preflight };
     }
 
     if (result.status === 'failed') {
@@ -429,9 +541,9 @@ async function generateVideo({ prompt, duration, resolution, style, outputPath }
  * @param {boolean} [opts.forceDownload] - 跳过探针验证直接下载
  * @returns {Promise<{videoPath: string, taskId: string, actualDuration: number, matched: boolean, preflight: object}>}
  */
-async function validateAndGenerate({ prompt, duration, resolution, outputPath, forceDownload }) {
+async function validateAndGenerate({ prompt, duration, resolution, outputPath, shotId, projectKey, forceDownload }) {
   // 提交 + 轮询 + 下载
-  const result = await generateVideo({ prompt, duration, resolution, outputPath });
+  const result = await generateVideo({ prompt, duration, resolution, outputPath, shotId, projectKey });
 
   // 【D135】探针验证实际时长
   let probeResult = null;
@@ -486,7 +598,12 @@ module.exports = {
   preflightCheck,
   probeVideoDuration,
   downloadVideo,
+  resolveOutputPath,
+  registerVideo,
+  findVideo,
   MODEL,
   BASE_URL,
   API_SPEC,
+  VIDEO_OUTPUT_ROOT,
+  VIDEO_REGISTRY_PATH,
 };