diff --git a/backend/app/functions/routing.php b/backend/app/functions/routing.php
index d5e70dc..37ecc04 100644
--- a/backend/app/functions/routing.php
+++ b/backend/app/functions/routing.php
@@ -4,14 +4,19 @@
 function routing_static_files() {
     $requestUri = $_SERVER['REQUEST_URI'] ?? '';
     $path = parse_url($requestUri, PHP_URL_PATH);
+    $path = urldecode($path); // декодируем кириллицу из URL
     
     // Отдача файлов из /public/ (принудительное скачивание)
     if (strpos($path, '/public/') === 0) {
         $file = dirname(dirname(__DIR__)) . $path;
         if (is_file($file)) {
+            $filename = basename($file);
+            $filename_encoded = rawurlencode($filename);
+            
             header('Content-Type: application/octet-stream');
             header('Content-Length: ' . filesize($file));
-            header('Content-Disposition: attachment; filename="' . basename($file) . '"');
+            // RFC 5987: filename* для кириллицы, filename для fallback
+            header("Content-Disposition: attachment; filename=\"$filename\"; filename*=UTF-8''$filename_encoded");
             readfile($file);
             exit;
         }