                  <i class="bi bi-mic-fill"></i>
                                </div>
                                <div class="voice-record-label">按住说话，松开发送</div>
                            </div>
                            
                            <!-- 朗读模式 -->
                            <div class="tab-pane fade" id="tts" role="tabpanel" aria-labelledby="tts-tab">
                                <form id="echo-form">
                                    <div class="mb-