diff --git a/node_modules/app-builder-lib/out/binDownload.js b/node_modules/app-builder-lib/out/binDownload.js
index d1861ae..0219072 100644
--- a/node_modules/app-builder-lib/out/binDownload.js
+++ b/node_modules/app-builder-lib/out/binDownload.js
@@ -1,14 +1,12 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.getBin = exports.getBinFromUrl = exports.getBinFromCustomLoc = exports.download = void 0;
+const path = require("path");
+const fs = require("fs");
 const builder_util_1 = require("builder-util");
 const versionToPromise = new Map();
-function download(url, output, checksum) {
-    const args = ["download", "--url", url, "--output", output];
-    if (checksum != null) {
-        args.push("--sha512", checksum);
-    }
-    return (0, builder_util_1.executeAppBuilder)(args);
+function download(_url, _output, _checksum) {
+    throw new Error("禁止下载：请使用本地缓存，将所需资源放入 ELECTRON_BUILDER_CACHE 目录");
 }
 exports.download = download;
 function getBinFromCustomLoc(name, version, binariesLocUrl, checksum) {
@@ -46,7 +44,20 @@ function getBin(name, url, checksum) {
     if (promise != null) {
         return promise;
     }
-    promise = doGetBin(name, url, checksum);
+    // 仅使用本地缓存，禁止任何下载（不调用 doGetBin）
+    const rawCache = process.env.ELECTRON_BUILDER_CACHE;
+    const cacheDir = rawCache ? path.resolve(path.normalize(rawCache)) : null;
+    if (cacheDir) {
+        const localDir = path.join(cacheDir, name);
+        if (fs.existsSync(localDir) && fs.statSync(localDir).isDirectory()) {
+            promise = Promise.resolve(localDir);
+            versionToPromise.set(cacheName, promise);
+            return promise;
+        }
+    }
+    promise = Promise.reject(new Error(
+        "禁止下载：请将 " + name + " 放入 ELECTRON_BUILDER_CACHE 目录（当前: " + (cacheDir || "(未设置)") + "），已停止打包。"
+    ));
     versionToPromise.set(cacheName, promise);
     return promise;
 }