diff --git a/tools/bypos-collector/main.go b/tools/bypos-collector/main.go
index fcc7017..e5d80a8 100644
--- a/tools/bypos-collector/main.go
+++ b/tools/bypos-collector/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"bufio"
 	"embed"
 	"encoding/csv"
 	"encoding/json"
@@ -22,7 +23,31 @@ var webFS embed.FS
 
 var collector *Collector
 
+// waitExit keeps the console window open on Windows so the user can read errors.
+func waitExit() {
+	if runtime.GOOS == "windows" {
+		fmt.Println("\n按回车键退出...")
+		bufio.NewReader(os.Stdin).ReadBytes('\n')
+	}
+}
+
 func main() {
+	// Log to file so crashes are diagnosable even if console closes.
+	lf, lfErr := os.OpenFile("bypos-collector.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
+	if lfErr == nil {
+		log.SetOutput(io.MultiWriter(os.Stderr, lf))
+		defer lf.Close()
+	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			log.Printf("程序崩溃: %v", r)
+			waitExit()
+		}
+	}()
+
+	log.Println("bypos-collector 启动中...")
+
 	addr := flag.String("addr", "127.0.0.1:8765", "本地监听地址")
 	noOpen := flag.Bool("no-open", false, "不自动打开浏览器")
 	sdog := flag.String("sdogid", "", "中心库账号 id（优先读 $BYPOS_SDOGID 环境变量）")
@@ -32,7 +57,12 @@ func main() {
 		log.Println("警告: 未配置 sdogid，请通过 $BYPOS_SDOGID 环境变量、-sdogid 参数或控制台输入框指定")
 	}
 
-	sub, _ := fs.Sub(webFS, "web")
+	sub, err := fs.Sub(webFS, "web")
+	if err != nil {
+		log.Printf("错误: 无法加载内嵌 web 资源: %v", err)
+		waitExit()
+		return
+	}
 	mux := http.NewServeMux()
 	mux.Handle("/", http.FileServer(http.FS(sub)))
 	mux.HandleFunc("/api/start", handleStart)
@@ -43,7 +73,9 @@ func main() {
 
 	ln, err := net.Listen("tcp", *addr)
 	if err != nil {
-		log.Fatalf("无法监听 %s: %v", *addr, err)
+		log.Printf("错误: 无法监听 %s: %v", *addr, err)
+		waitExit()
+		return
 	}
 	realAddr := ln.Addr().String()
 	urlStr := "http://" + realAddr + "/"
@@ -52,10 +84,14 @@ func main() {
 	fmt.Println(" 控制台: " + urlStr)
 	fmt.Println(" 关闭本窗口即停止程序")
 	fmt.Println("==============================================")
+	log.Printf("监听地址: %s", realAddr)
 	if !*noOpen {
 		go openBrowser(urlStr)
 	}
-	log.Fatal(http.Serve(ln, mux))
+	if err := http.Serve(ln, mux); err != nil {
+		log.Printf("HTTP 服务异常退出: %v", err)
+		waitExit()
+	}
 }
 
 func openBrowser(url string) {