diff --git a/src/api/ops/report.ts b/src/api/ops/report.ts
index d005eff..fb0874e 100644
--- a/src/api/ops/report.ts
+++ b/src/api/ops/report.ts
@@ -295,11 +295,45 @@ function parseContentDispositionFileName(value: string | null): string | undefin
   if (!value) return undefined
 
   const utf8FileName = value.match(/filename\*=UTF-8''([^;]+)/i)
-  if (utf8FileName) return decodeURIComponent(utf8FileName[1])
+  if (utf8FileName) {
+    try {
+      return decodeURIComponent(utf8FileName[1])
+    } catch {
+      // 编码异常时继续读取普通文件名
+    }
+  }
 
   return value.match(/filename="([^"]+)"/i)?.[1]
 }
 
+function normalizeReportFileName(
+  fileName: string | undefined,
+  id: number,
+  format: ReportExportFormat,
+): string {
+  const defaultName = `report_${id}.${format}`
+  if (!fileName) return defaultName
+
+  let name = fileName.split(/[\\/]/).pop() || ''
+  name = name
+    .replace(/[\u0000-\u001F\u007F\u061C\u200E\u200F\u202A-\u202E\u2066-\u2069]/g, '')
+    .replace(/[<>:"/\\|?*]/g, '_')
+    .replace(/[ .]+$/, '')
+
+  const extensionIndex = name.lastIndexOf('.')
+  if (extensionIndex > 0) {
+    name = name.slice(0, extensionIndex).replace(/[ .]+$/, '')
+  }
+  if (!name) return defaultName
+
+  const reservedName = /^(con|prn|aux|nul|com[1-9]|lpt[1-9])$/i
+  if (reservedName.test(name.split('.')[0])) {
+    name = `_${name}`
+  }
+
+  return `${name}.${format}`
+}
+
 /**
  * 报表文件导出：使用 fetch + arrayBuffer，绕过 axios 拦截器与 Blob 中间态，
  * 避免网络面板里已是合法 xlsx（PK…）但落盘文件损坏的情况。
@@ -331,7 +365,11 @@ export const exportReport = async (
   }
   return {
     blob: exportBufferToBlob(ab, format, r.headers.get('content-type')),
-    fileName: parseContentDispositionFileName(r.headers.get('content-disposition')) || `report_${id}.${format}`,
+    fileName: normalizeReportFileName(
+      parseContentDispositionFileName(r.headers.get('content-disposition')),
+      id,
+      format,
+    ),
   }
 }