</div>
        </div>

        <div class="row">
            <!-- 视频区域 -->
            <div class="col-lg-8">
                <div class="card">
                    <div class="card-header d-flex justify-content-between align-items-center">
                        <div>
                            <span class="status-indicator status-disconnected" id="connection-status"></span>
                            <span id="status-text">未连接</span>
                        </div>
                    </di