diff --git a/test.html b/test.html
new file mode 100644
index 0000000..9d4b6db
--- /dev/null
+++ b/test.html
@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Marzban Subscription</title>
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css">
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            margin: 20px;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1 class="text-center mb-4">Подписка Marzban</h1>
+
+        <div id="os-detection" class="alert alert-info text-center">
+            Определение вашей операционной системы...
+        </div>
+
+        <div class="accordion" id="appsAccordion">
+            <div class="accordion-item">
+                <h2 class="accordion-header" id="headingAndroid">
+                    <button class="accordion-button" type="button" data-bs-toggle="collapse" data-bs-target="#collapseAndroid" aria-expanded="true" aria-controls="collapseAndroid">
+                        Приложения для Android
+                    </button>
+                </h2>
+                <div id="collapseAndroid" class="accordion-collapse collapse" aria-labelledby="headingAndroid" data-bs-parent="#appsAccordion">
+                    <div class="accordion-body">
+                        <ul>
+                            <li><a href="#">Приложение 1</a></li>
+                            <li><a href="#">Приложение 2</a></li>
+                        </ul>
+                    </div>
+                </div>
+            </div>
+
+            <div class="accordion-item">
+                <h2 class="accordion-header" id="headingiOS">
+                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseiOS" aria-expanded="false" aria-controls="collapseiOS">
+                        Приложения для iOS
+                    </button>
+                </h2>
+                <div id="collapseiOS" class="accordion-collapse collapse" aria-labelledby="headingiOS" data-bs-parent="#appsAccordion">
+                    <div class="accordion-body">
+                        <ul>
+                            <li><a href="#">Приложение 1</a></li>
+                            <li><a href="#">Приложение 2</a></li>
+                        </ul>
+                    </div>
+                </div>
+            </div>
+
+            <div class="accordion-item">
+                <h2 class="accordion-header" id="headingWindows">
+                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseWindows" aria-expanded="false" aria-controls="collapseWindows">
+                        Приложения для Windows
+                    </button>
+                </h2>
+                <div id="collapseWindows" class="accordion-collapse collapse" aria-labelledby="headingWindows" data-bs-parent="#appsAccordion">
+                    <div class="accordion-body">
+                        <ul>
+                            <li><a href="#">Приложение 1</a></li>
+                            <li><a href="#">Приложение 2</a></li>
+                        </ul>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <script>
+        document.addEventListener('DOMContentLoaded', function () {
+            const osDetection = document.getElementById('os-detection');
+            const userAgent = navigator.userAgent;
+
+            let os = 'Не удалось определить ОС';
+            if (/Android/i.test(userAgent)) {
+                os = 'Android';
+                document.getElementById('collapseAndroid').classList.add('show');
+            } else if (/iPhone|iPad|iPod/i.test(userAgent)) {
+                os = 'iOS';
+                document.getElementById('collapseiOS').classList.add('show');
+            } else if (/Windows NT/i.test(userAgent)) {
+                os = 'Windows';
+                document.getElementById('collapseWindows').classList.add('show');
+            }
+
+            osDetection.textContent = `Ваша операционная система: ${os}`;
+        });
+    </script>
+
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js"></script>
+</body>
+</html>
\ No newline at end of file
