diff --git a/.env.example b/.env.example
index 5779eb5..7616101 100644
--- a/.env.example
+++ b/.env.example
@@ -1,5 +1,5 @@
-# 快快 AI Hub 统一 Key：素材库与 Seedance 2.0 均使用 Bearer 鉴权
-KK_API_KEY=
+# 服务端统一使用的素材库 Token，不会下发到浏览器
+KK_ASSET_TOKEN=
 
 # 1 = 使用 Mock 数据评审流程；0 = 调用真实接口
 DEMO_MOCK=1
diff --git a/README.md b/README.md
index 37799c4..5a13bf4 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 ## 已串联的流程
 
 1. 输入数字人正面、侧面、背面三张公网图片 URL。
-2. 逐张调用 `POST /v1/assets/upload`，以统一 API Key 提交三张素材审核。
+2. 逐张调用 `POST /v1/assets/upload`，以服务端素材库 Token 提交三张素材审核。
 3. 对仍在审核的 `mat_*` 素材调用 `GET /v1/assets/{asset_id}`，直至三张全部 `ready` 或出现 `failed`。
 4. 从全部历史素材中选择多张图片，绑定成可复用的人物/形象；三视图只是常见组合，不再是固定的数据结构。
 5. 为本场角色选择人物素材，并补充场景、道具等非人物图片及参考视频，组织成官方 `content` 数组后调用 `POST /sd/api/v3/contents/generations/tasks`。
@@ -37,7 +37,7 @@
 
 ## 10–20 人试用的部署边界
 
-单实例 Node 服务可用于 10–20 人低频试用，但上线必须配置 HTTPS、访问鉴权/限流、进程守护和持久日志目录。所有用户共享同一个服务商 Key，需要另行确认上游 QPS、同时生成任务数和额度。`assetReviewTasks` 当前仍在单进程内存中，因此暂时应保持单实例部署；如果要多实例扩容，需先将任务状态迁入 Redis/数据库。
+单实例 Node 服务可用于 10–20 人低频试用，但上线必须配置 HTTPS、限流、进程守护和持久日志目录。素材库 Token 由服务端统一配置；每位客户首次访问时输入自己的视频 Key，视频生成费用归属该 Key。`assetReviewTasks` 与视频任务 Key 映射当前仍在单进程内存中，因此暂时应保持单实例部署；如果要多实例扩容，需先将任务状态迁入 Redis/数据库。
 
 页面会分别展示正面、侧面、背面的审核状态与失败原因。异步审核任务 ID 会保存在浏览器本地，刷新或重新打开页面后会继续查询；本场角色尚未选齐人物素材时不会解锁视频生成。
 
@@ -45,7 +45,7 @@
 
 生产页支持文本、图片和视频三类输入。人物图片与场景、道具等其他参考图片共同占用单次最多 9 张图片额度；参考视频单独计数，当前 Demo 最多 3 条。最终请求按“文本 → 人物图片 → 其他参考图片 → 参考视频”的顺序写入 v3 `content` 数组，页面会同步生成图号和角色映射。
 
-所有第三方 token 都只放在本地服务端环境变量中，不进入浏览器，也不会写入 Git。
+素材库 Token 只放在服务端环境变量中，不进入浏览器，也不会写入 Git。客户视频 Key 保存在客户当前浏览器的 `localStorage`，并随视频请求提交给本 Demo 服务端；服务端只在内存中建立任务与 Key 的临时映射，不写入日志或 Git。清理网站数据或更换浏览器后需重新输入。
 
 ## 本地运行
 
@@ -58,10 +58,10 @@ npm start
 
 请优先通过这个地址访问，不要把 `public/index.html` 当成普通文档直接打开。页面现已兼容直接打开时的样式加载，但接口交互仍依赖本地服务。
 
-默认 `.env.example` 使用 Mock 模式，可以先完整评审交互。连接真实接口时设置：
+默认 `.env.example` 使用 Mock 模式，可以先完整评审交互。连接真实接口时设置服务端素材库 Token；视频 Key 由客户在页面首次访问时输入：
 
 ```bash
-KK_API_KEY=sk-统一接口Key
+KK_ASSET_TOKEN=素材库Token
 DEMO_MOCK=0
 ```
 
@@ -78,25 +78,26 @@ npm start
 
 上线前请完成以下配置：
 
-1. 在服务端填写 `KK_API_KEY`，并设置 `DEMO_MOCK=0`；不要把 `.env.local` 提交到 Git。
+1. 在服务端填写 `KK_ASSET_TOKEN`，并设置 `DEMO_MOCK=0`；不要把 `.env.local` 提交到 Git。视频 Key 不配置在服务器，由客户在页面输入。
 2. 设置 `HOST=0.0.0.0` 和实际监听端口，由 Nginx/网关反向代理并提供 HTTPS。
 3. 将 `AUDIT_LOG_DIR` 指向持久化磁盘，设置随机的 `AUDIT_HASH_SALT`，同时配置日志轮转与清理周期。
 4. 使用 systemd、PM2 或容器编排守护 Node 进程，异常退出后自动重启。
-5. 在入口层增加客户访问鉴权、请求频率限制与并发生成限制；服务商 Key 仅保留在服务端。
-6. 发布后访问 `/api/config` 检查 `mockMode=false`、素材与视频能力均为可用，再分别跑一条素材审核和视频生成链路。
+5. 在入口层增加请求频率限制与并发生成限制；素材库 Token 仅保留在服务端。
+6. 发布后访问页面输入客户视频 Key，检查素材与视频能力均为可用，再分别跑一条素材审核和视频生成链路。
 
 当前素材审核任务状态保存在单进程内存中，首次客户交付建议只运行一个应用实例。若需要多实例扩容，应先把任务状态迁移到 Redis 或数据库。
 
 ## 当前还缺的真实联调材料
 
-- **快快 AI Hub 统一 Key**：形如 `sk-...`，同时用于新版素材库与 Seedance 2.0。
+- **快快素材库 Token**：由服务端统一配置，用于素材上传、审核与历史素材查询。
+- **客户视频 Key**：形如 `sk-...`，由客户首次打开页面时输入，用于视频提交和结果查询。
 - **数字人三视图的公网 URL**：正面、侧面、背面各一张；接口不支持直接上传本地文件或 Base64，URL 需带 `.png`、`.jpg` 等扩展名。
 - **客户希望验证的第一段分镜**：人物动作、台词、场景、时长、横竖屏及是否需要同步声音。Demo 已提供一段可替换示例。
 - **视频任务成功响应**：新版接口在 `content.video_url` 返回临时签名视频地址。
 
 ## 接口边界
 
-- 素材审核与视频生成统一使用 `https://ai-api.kkidc.com` 和同一个 Bearer Key。
+- 素材审核与视频生成统一请求 `https://ai-api.kkidc.com`，但分别使用服务端素材库 Token 与客户视频 Key。
 - 新版素材库只在列表中返回 `ready` 素材；`pending` / `failed` 通过单素材接口查询。
 - 视频生成应长期保存 `asset://mat_*`，不要依赖临时签名视频地址。
 - 参考图/参考视频/首帧/首尾帧属于不同互斥调用方式；本 Demo 采用“多模态参考图”方式。
diff --git a/public/app.js b/public/app.js
index 73f87d7..18fc3da 100644
--- a/public/app.js
+++ b/public/app.js
@@ -14,6 +14,7 @@ const LEGACY_GROUP_KEY = "yingxiangli.selectedAssetGroup";
 const SCENE_ROLES_KEY = "yingxiangli.sceneRoles.v1";
 const CHARACTER_LIBRARY_KEY = "yingxiangli.characterLibrary.v1";
 const DRAMA_PROJECT_KEY = "yingxiangli.dramaProject.v1";
+const VIDEO_KEY_STORAGE = "yingxiangli.videoKey.v1";
 const AUDIT_CLIENT_KEY = "yingxiangli.auditClientId.v1";
 const AUDIT_SESSION_KEY = "yingxiangli.auditSessionId.v1";
 const VIEW_LABELS = ["正面", "侧面", "背面"];
@@ -53,6 +54,7 @@ const el = Object.fromEntries([
   "referenceVideoInputs", "addExtraImageButton", "addReferenceVideoButton", "inputQuota",
   "addShotButton", "shotList", "timelineSummary", "shotProgressBar", "continuityMode", "versionCount",
   "versionList", "assemblyPanel", "assemblyList", "assemblyHint", "closeAssemblyButton",
+  "videoKeyGate", "videoKeyForm", "videoKeyInput", "videoKeyError", "changeVideoKeyButton", "cancelVideoKeyButton",
 ].map((id) => [id, document.getElementById(id)]));
 
 const reviewRows = [el.reviewFront, el.reviewSide, el.reviewBack];
@@ -63,6 +65,7 @@ const auditInputTimers = new Map();
 let auditFlushTimer = null;
 
 setupClientAudit();
+setupVideoKeyGate();
 init();
 
 document.querySelectorAll(".module-tab").forEach((button) => {
@@ -76,12 +79,13 @@ async function init() {
     restoreCharacterLibrary();
     restoreDramaProject();
     renderConnection();
+    if (!state.config.mockMode && !currentVideoKey()) showVideoKeyGate(false);
     await loadAssets();
     loadActiveShotIntoForm();
     renderScene();
     renderStoryboard();
     resumePendingReview();
-    resumePendingVideo();
+    if (state.config.mockMode || currentVideoKey()) resumePendingVideo();
   } catch (error) {
     showToast(error.message, true);
     el.connectionState.textContent = "本地服务连接失败";
@@ -89,6 +93,42 @@ async function init() {
   }
 }
 
+function setupVideoKeyGate() {
+  el.videoKeyForm.addEventListener("submit", (event) => {
+    event.preventDefault();
+    const key = el.videoKeyInput.value.trim();
+    if (!/^sk-[A-Za-z0-9_-]{8,}$/.test(key)) {
+      el.videoKeyError.textContent = "请输入正确格式的生视频 Key（sk-...）";
+      el.videoKeyError.classList.remove("hidden");
+      return;
+    }
+    localStorage.setItem(VIDEO_KEY_STORAGE, key);
+    logClientOperation("video_key.saved", { keySuffix: key.slice(-4), keyLength: key.length });
+    location.reload();
+  });
+  el.changeVideoKeyButton.addEventListener("click", () => showVideoKeyGate(true));
+  el.cancelVideoKeyButton.addEventListener("click", hideVideoKeyGate);
+}
+
+function currentVideoKey() {
+  try { return localStorage.getItem(VIDEO_KEY_STORAGE)?.trim() || ""; }
+  catch { return ""; }
+}
+
+function showVideoKeyGate(canCancel = Boolean(currentVideoKey())) {
+  el.videoKeyInput.value = "";
+  el.videoKeyError.textContent = "";
+  el.videoKeyError.classList.add("hidden");
+  el.cancelVideoKeyButton.classList.toggle("hidden", !canCancel);
+  el.videoKeyGate.classList.remove("hidden");
+  requestAnimationFrame(() => el.videoKeyInput.focus());
+}
+
+function hideVideoKeyGate() {
+  if (!currentVideoKey() && !state.config?.mockMode) return;
+  el.videoKeyGate.classList.add("hidden");
+}
+
 el.addRoleButton.addEventListener("click", () => {
   if (state.roles.length >= 3) return showToast("当前 Demo 最多支持三个场景角色，人物图片总数不超过 9 张", true);
   const role = createRole(`角色 ${ROLE_LETTERS[state.roles.length]}`);
@@ -1403,6 +1443,9 @@ async function resumePendingVideo() {
 }
 
 function renderConnection() {
+  const videoKey = currentVideoKey();
+  el.changeVideoKeyButton.classList.toggle("hidden", state.config.mockMode || !videoKey);
+  if (videoKey) el.changeVideoKeyButton.textContent = `更换视频 Key · ${videoKey.slice(-4)}`;
   if (state.config.mockMode) {
     el.connectionState.textContent = "Mock 模式 · 可评审完整流程";
     el.connectionState.className = "connection mock";
@@ -1414,7 +1457,7 @@ function renderConnection() {
     el.reviewButton.textContent = "提交真实素材审核";
     el.mockHint.classList.add("hidden");
   } else if (state.config.assetReady) {
-    el.connectionState.textContent = "素材审核 Live · 视频 Key 待配置";
+    el.connectionState.textContent = "请输入视频 Key";
     el.connectionState.className = "connection live";
     el.reviewButton.textContent = "提交真实素材审核";
     el.mockHint.classList.add("hidden");
@@ -1663,11 +1706,15 @@ async function api(path, options = {}) {
   const startedAt = Date.now();
   const method = options.method || "GET";
   const shouldLog = shouldLogClientApi(path);
+  const videoKey = currentVideoKey();
+  const videoHeaders = videoKey && (/^\/api\/videos(?:\/|$)/.test(path) || path === "/api/config")
+    ? { "X-Video-Key": videoKey }
+    : {};
   if (shouldLog) logClientOperation("api.request", { method, path });
   try {
     const response = await fetch(`${API_BASE}${path}`, {
       ...options,
-      headers: { "Content-Type": "application/json", "X-Session-Id": auditSessionId, ...(options.headers || {}) },
+      headers: { "Content-Type": "application/json", "X-Session-Id": auditSessionId, ...videoHeaders, ...(options.headers || {}) },
     });
     const result = await response.json().catch(() => ({ error: "服务返回了无法解析的内容" }));
     if (shouldLog || !response.ok) {
@@ -1683,6 +1730,10 @@ async function api(path, options = {}) {
       const error = new Error(extractApiError(result) || `请求失败（${response.status}）`);
       error.payload = result;
       error.status = response.status;
+      if (response.status === 401 && /^\/api\/videos(?:\/|$)/.test(path)) {
+        localStorage.removeItem(VIDEO_KEY_STORAGE);
+        showVideoKeyGate(false);
+      }
       throw error;
     }
     return result;
diff --git a/public/index.html b/public/index.html
index 1db6cf8..c64ac10 100644
--- a/public/index.html
+++ b/public/index.html
@@ -4,7 +4,7 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>营响力｜AI 短剧数字人 Demo</title>
-    <link rel="stylesheet" href="./styles.css?v=21" />
+    <link rel="stylesheet" href="./styles.css?v=22" />
   </head>
   <body data-active-module="library">
     <header class="topbar">
@@ -12,7 +12,10 @@
         <span class="eyebrow">营响力 · 真实客户验证</span>
         <h1>AI 短剧数字人生产</h1>
       </div>
-      <div class="connection" id="connectionState">正在检查接口配置…</div>
+      <div class="topbar-actions">
+        <button class="key-change-button hidden" type="button" id="changeVideoKeyButton">更换视频 Key</button>
+        <div class="connection" id="connectionState">正在检查接口配置…</div>
+      </div>
     </header>
 
     <main>
@@ -262,7 +265,24 @@
       </div>
     </main>
 
+    <div class="key-gate hidden" id="videoKeyGate">
+      <form class="key-gate-card" id="videoKeyForm">
+        <span class="section-kicker">首次使用</span>
+        <h2>输入生视频 Key</h2>
+        <p>该 Key 用于本次客户的视频生成与费用统计，仅保存在当前浏览器。</p>
+        <label class="field">
+          <span>生视频 Key</span>
+          <input id="videoKeyInput" type="password" autocomplete="off" spellcheck="false" placeholder="sk-..." required />
+        </label>
+        <p class="key-gate-error hidden" id="videoKeyError"></p>
+        <div class="key-gate-actions">
+          <button class="secondary hidden" type="button" id="cancelVideoKeyButton">取消</button>
+          <button class="primary" type="submit">进入使用</button>
+        </div>
+      </form>
+    </div>
+
     <div class="toast hidden" id="toast"></div>
-    <script src="./app.js?v=25"></script>
+    <script src="./app.js?v=26"></script>
   </body>
 </html>
diff --git a/public/styles.css b/public/styles.css
index 240f6eb..87c7efb 100644
--- a/public/styles.css
+++ b/public/styles.css
@@ -38,6 +38,17 @@ button { cursor: pointer; }
 .connection.live { background: rgba(15,159,110,.2); color: #91ebca; }
 .connection.mock { background: rgba(255,183,77,.15); color: #ffd28a; }
 .connection.blocked { background: rgba(239,68,68,.16); color: #ffb1b1; }
+.topbar-actions { display: flex; align-items: center; gap: 10px; }
+.key-change-button { padding: 7px 10px; border: 1px solid rgba(255,255,255,.22); border-radius: 8px; background: transparent; color: #dce5ff; font-size: 12px; }
+.key-change-button:hover { background: rgba(255,255,255,.08); }
+
+.key-gate { position: fixed; inset: 0; z-index: 1000; display: grid; place-items: center; padding: 20px; background: rgba(9,18,38,.72); backdrop-filter: blur(5px); }
+.key-gate-card { width: min(440px, 100%); padding: 28px; border-radius: 18px; background: white; box-shadow: 0 24px 80px rgba(5,14,34,.28); }
+.key-gate-card h2 { margin: 7px 0 8px; font-size: 24px; }
+.key-gate-card > p { margin: 0 0 20px; color: var(--muted); font-size: 13px; line-height: 1.6; }
+.key-gate-card .field { margin-top: 4px; }
+.key-gate-error { margin: 9px 0 0 !important; color: #c03945 !important; }
+.key-gate-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }
 
 main { max-width: 1480px; margin: 0 auto; padding: 24px; }
 .panel, .sidebar { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; }
@@ -255,6 +266,8 @@ hr { border: 0; border-top: 1px solid var(--line); margin: 26px 0 0; }
 
 @media (max-width: 680px) {
   .topbar { align-items: flex-start; padding: 16px; }
+  .topbar-actions { align-items: flex-end; flex-direction: column-reverse; }
+  .key-change-button { white-space: nowrap; }
   main { padding: 14px; }
   .panel { padding: 18px; }
   .module-tabs { grid-template-columns: 1fr; }
diff --git a/server.mjs b/server.mjs
index 2c2b610..2ebbbcf 100644
--- a/server.mjs
+++ b/server.mjs
@@ -21,14 +21,15 @@ loadLocalEnv();
 
 const port = Number(process.env.PORT || 4173);
 const host = process.env.HOST || "127.0.0.1";
-const apiToken = process.env.KK_API_KEY || process.env.KK_VIDEO_TOKEN || "";
-const mockMode = process.env.DEMO_MOCK === "1" || !apiToken;
+const assetToken = process.env.KK_ASSET_TOKEN || process.env.KK_API_KEY || "";
+const mockMode = process.env.DEMO_MOCK === "1";
 const auditLogDir = process.env.AUDIT_LOG_DIR || join(root, "logs");
 const auditHashSalt = process.env.AUDIT_HASH_SALT || "yingxiangli-demo-audit";
 
 const mockAssets = [];
 const mockVideos = new Map();
 const assetReviewTasks = new Map();
+const videoTaskTokens = new Map();
 
 const server = createServer((request, response) => {
   const startedAt = Date.now();
@@ -115,12 +116,13 @@ async function handleApi(request, response, url) {
   }
 
   if (request.method === "GET" && url.pathname === "/api/config") {
+    const videoToken = videoTokenFromRequest(request);
     sendJson(response, 200, {
       mockMode,
-      assetReady: mockMode || Boolean(apiToken),
-      videoReady: mockMode || Boolean(apiToken),
+      assetReady: mockMode || Boolean(assetToken),
+      videoReady: mockMode || Boolean(videoToken),
       apiVersion: "v3",
-      missing: !mockMode && !apiToken ? ["KK_API_KEY"] : [],
+      missing: !mockMode && !assetToken ? ["KK_ASSET_TOKEN"] : [],
     });
     return;
   }
@@ -174,13 +176,13 @@ async function handleApi(request, response, url) {
       return;
     }
 
-    requireToken(apiToken, "KK_API_KEY");
+    requireToken(assetToken, "KK_ASSET_TOKEN");
     const labels = { front: "正面", side: "侧面", back: "背面" };
     const uploaded = await Promise.all(imageInputs.map(async (input, index) => {
       const viewLabel = labels[input.view] || `参考图${index + 1}`;
       const upstream = await callJson("https://ai-api.kkidc.com/v1/assets/upload", {
         method: "POST",
-        headers: bearerHeaders(),
+        headers: bearerHeaders(assetToken),
         body: JSON.stringify({
           url: input.url,
           type: "image",
@@ -208,7 +210,7 @@ async function handleApi(request, response, url) {
   }
 
   if (request.method === "GET" && url.pathname.startsWith("/api/assets/tasks/")) {
-    requireToken(apiToken, "KK_API_KEY");
+    requireToken(assetToken, "KK_ASSET_TOKEN");
     const taskId = decodeURIComponent(url.pathname.split("/").pop());
     const task = assetReviewTasks.get(taskId);
     if (!task) throw new ClientError("素材审核任务不存在或本地服务已重启，请在素材库刷新状态", 404);
@@ -227,12 +229,12 @@ async function handleApi(request, response, url) {
       });
       return;
     }
-    requireToken(apiToken, "KK_API_KEY");
+    requireToken(assetToken, "KK_ASSET_TOKEN");
     const upstreamUrl = new URL("https://ai-api.kkidc.com/v1/assets");
     for (const key of ["page", "page_size", "purpose", "sort_order", "group_id"]) {
       for (const value of url.searchParams.getAll(key)) upstreamUrl.searchParams.append(key, value);
     }
-    const upstream = await callJson(upstreamUrl, { headers: bearerHeaders(false) });
+    const upstream = await callJson(upstreamUrl, { headers: bearerHeaders(assetToken, false) });
     sendJson(response, upstream.status, upstream.body, upstream.trackId);
     return;
   }
@@ -257,19 +259,21 @@ async function handleApi(request, response, url) {
       return;
     }
 
-    requireToken(apiToken, "KK_API_KEY");
+    const videoToken = requireVideoToken(request);
     const upstream = await callJson("https://ai-api.kkidc.com/sd/api/v3/contents/generations/tasks", {
       method: "POST",
-      headers: bearerHeaders(),
+      headers: bearerHeaders(videoToken),
       body: JSON.stringify(payload),
     });
+    const taskId = extractVideoTaskId(upstream.body);
+    if (taskId) videoTaskTokens.set(taskId, videoToken);
     sendJson(response, upstream.status, upstream.body, upstream.trackId);
     return;
   }
 
   const videoFileMatch = request.method === "GET" && url.pathname.match(/^\/api\/videos\/([^/]+)\/video\.mp4$/);
   if (videoFileMatch) {
-    await streamVideoTask(response, decodeURIComponent(videoFileMatch[1]));
+    await streamVideoTask(request, response, decodeURIComponent(videoFileMatch[1]));
     return;
   }
 
@@ -292,9 +296,10 @@ async function handleApi(request, response, url) {
       return;
     }
 
-    requireToken(apiToken, "KK_API_KEY");
+    const videoToken = requireVideoToken(request, taskId);
+    videoTaskTokens.set(taskId, videoToken);
     const upstream = await callJson(`https://ai-api.kkidc.com/sd/api/v3/contents/generations/tasks/${encodeURIComponent(taskId)}`, {
-      headers: bearerHeaders(false),
+      headers: bearerHeaders(videoToken, false),
     });
     const normalized = {
       ...upstream.body,
@@ -311,15 +316,15 @@ async function handleApi(request, response, url) {
   sendJson(response, 404, { error: "接口不存在" });
 }
 
-async function streamVideoTask(response, taskId) {
+async function streamVideoTask(request, response, taskId) {
   if (mockMode) throw new ClientError("Mock 视频没有可下载的真实文件", 404);
-  requireToken(apiToken, "KK_API_KEY");
+  const videoToken = requireVideoToken(request, taskId);
   const startedAt = Date.now();
   const context = requestContext.getStore() || {};
   writeAuditLog({ level: "info", event: "video.proxy.start", requestId: context.requestId, sessionId: context.sessionId, taskId });
 
   const task = await callJson(`https://ai-api.kkidc.com/sd/api/v3/contents/generations/tasks/${encodeURIComponent(taskId)}`, {
-    headers: bearerHeaders(false),
+    headers: bearerHeaders(videoToken, false),
   });
   if (task.status < 200 || task.status >= 300) {
     throw new ClientError(task.body?.message || "无法读取视频任务", task.status);
@@ -495,6 +500,20 @@ function requireToken(value, name) {
   if (!value) throw new ClientError(`服务端缺少 ${name} 配置`, 503);
 }
 
+function videoTokenFromRequest(request, taskId = "") {
+  const supplied = String(request.headers["x-video-key"] || "").trim();
+  if (supplied) return supplied.slice(0, 500);
+  if (taskId && videoTaskTokens.has(taskId)) return videoTaskTokens.get(taskId);
+  return "";
+}
+
+function requireVideoToken(request, taskId = "") {
+  const token = videoTokenFromRequest(request, taskId);
+  if (!token) throw new ClientError("请先输入生视频 Key", 401);
+  if (!/^sk-[A-Za-z0-9_-]{8,}$/.test(token)) throw new ClientError("生视频 Key 格式不正确", 401);
+  return token;
+}
+
 function clamp(value, min, max) {
   return Math.min(max, Math.max(min, value));
 }
@@ -568,9 +587,9 @@ function resolveVideoModel(value = "") {
   return "doubao-seedance-2-0-260128";
 }
 
-function bearerHeaders(includeContentType = true) {
+function bearerHeaders(token, includeContentType = true) {
   return {
-    Authorization: `Bearer ${apiToken}`,
+    Authorization: `Bearer ${token}`,
     ...(includeContentType ? { "Content-Type": "application/json" } : {}),
   };
 }
@@ -586,7 +605,7 @@ async function refreshAssetReviewTask(task) {
     if (["ready", "failed"].includes(item.status)) return;
     const upstreamUrl = new URL(`https://ai-api.kkidc.com/v1/assets/${encodeURIComponent(item.assetId)}`);
     if (item.groupId) upstreamUrl.searchParams.set("group_id", item.groupId);
-    const upstream = await callJson(upstreamUrl, { headers: bearerHeaders(false) });
+    const upstream = await callJson(upstreamUrl, { headers: bearerHeaders(assetToken, false) });
     if (upstream.status >= 400 || upstream.body?.success === false) {
       item.status = "failed";
       item.errorMessage = extractUpstreamMessage(upstream.body) || "素材状态查询失败";
@@ -714,7 +733,7 @@ function sendJson(response, status, body, trackId = "") {
 function corsHeaders() {
   return {
     "Access-Control-Allow-Origin": "*",
-    "Access-Control-Allow-Headers": "Content-Type, X-Session-Id",
+    "Access-Control-Allow-Headers": "Content-Type, X-Session-Id, X-Video-Key",
     "Access-Control-Expose-Headers": "X-Request-Id",
     "Access-Control-Allow-Methods": "GET, POST, OPTIONS",
     "Access-Control-Allow-Private-Network": "true",