diff --git a/test.html b/test.html
index 9d4b6db..c6ede67 100644
--- a/test.html
+++ b/test.html
@@ -29,10 +29,32 @@
                 </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 class="accordion" id="androidSubAccordion">
+                            <div class="accordion-item">
+                                <h2 class="accordion-header" id="headingAndroidApp1">
+                                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseAndroidApp1" aria-expanded="false" aria-controls="collapseAndroidApp1">
+                                        Приложение 1
+                                    </button>
+                                </h2>
+                                <div id="collapseAndroidApp1" class="accordion-collapse collapse" aria-labelledby="headingAndroidApp1" data-bs-parent="#androidSubAccordion">
+                                    <div class="accordion-body">
+                                        <p>Описание приложения 1 для Android.</p>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="accordion-item">
+                                <h2 class="accordion-header" id="headingAndroidApp2">
+                                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseAndroidApp2" aria-expanded="false" aria-controls="collapseAndroidApp2">
+                                        Приложение 2
+                                    </button>
+                                </h2>
+                                <div id="collapseAndroidApp2" class="accordion-collapse collapse" aria-labelledby="headingAndroidApp2" data-bs-parent="#androidSubAccordion">
+                                    <div class="accordion-body">
+                                        <p>Описание приложения 2 для Android.</p>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
                     </div>
                 </div>
             </div>
@@ -45,10 +67,32 @@
                 </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 class="accordion" id="iosSubAccordion">
+                            <div class="accordion-item">
+                                <h2 class="accordion-header" id="headingiOSApp1">
+                                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseiOSApp1" aria-expanded="false" aria-controls="collapseiOSApp1">
+                                        Приложение 1
+                                    </button>
+                                </h2>
+                                <div id="collapseiOSApp1" class="accordion-collapse collapse" aria-labelledby="headingiOSApp1" data-bs-parent="#iosSubAccordion">
+                                    <div class="accordion-body">
+                                        <p>Описание приложения 1 для iOS.</p>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="accordion-item">
+                                <h2 class="accordion-header" id="headingiOSApp2">
+                                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseiOSApp2" aria-expanded="false" aria-controls="collapseiOSApp2">
+                                        Приложение 2
+                                    </button>
+                                </h2>
+                                <div id="collapseiOSApp2" class="accordion-collapse collapse" aria-labelledby="headingiOSApp2" data-bs-parent="#iosSubAccordion">
+                                    <div class="accordion-body">
+                                        <p>Описание приложения 2 для iOS.</p>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
                     </div>
                 </div>
             </div>
@@ -61,10 +105,32 @@
                 </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 class="accordion" id="windowsSubAccordion">
+                            <div class="accordion-item">
+                                <h2 class="accordion-header" id="headingWindowsApp1">
+                                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseWindowsApp1" aria-expanded="false" aria-controls="collapseWindowsApp1">
+                                        Приложение 1
+                                    </button>
+                                </h2>
+                                <div id="collapseWindowsApp1" class="accordion-collapse collapse" aria-labelledby="headingWindowsApp1" data-bs-parent="#windowsSubAccordion">
+                                    <div class="accordion-body">
+                                        <p>Описание приложения 1 для Windows.</p>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="accordion-item">
+                                <h2 class="accordion-header" id="headingWindowsApp2">
+                                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseWindowsApp2" aria-expanded="false" aria-controls="collapseWindowsApp2">
+                                        Приложение 2
+                                    </button>
+                                </h2>
+                                <div id="collapseWindowsApp2" class="accordion-collapse collapse" aria-labelledby="headingWindowsApp2" data-bs-parent="#windowsSubAccordion">
+                                    <div class="accordion-body">
+                                        <p>Описание приложения 2 для Windows.</p>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
                     </div>
                 </div>
             </div>
@@ -94,4 +160,4 @@
 
     <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
+</html>