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<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Homework Hero - 孩子端</title>
    <link rel="icon" type="image/x-icon" href="/static/favicon.ico">
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js"></script>
    <script src="https://unpkg.com/feather-icons"></script>
</head>
<body class="bg-gradient-to-br from-green-50 to-teal-100 min-h-screen">
    <!-- Header -->
    <header class="bg-white shadow-sm py-4 px-6 flex justify-between items-center">
        <div class="flex items-center space-x-2">
            <i data-feather="book-open" class="text-teal-600"></i>
            <h1 class="text-xl font-bold text-gray-800">Homework Hero</h1>
        </div>
        <div class="flex items-center space-x-3">
            <span id="connectionStatus" class="inline-flex items-center px-3 py-1 rounded-full text-sm font-medium bg-green-100 text-green-800">
                <i data-feather="wifi" class="mr-1"></i> 已连接
            </span>
            <button id="helpBtn" class="bg-amber-500 hover:bg-amber-600 text-white px-4 py-2 rounded-lg flex items-center">
                <i data-feather="help-circle" class="mr-1"></i> 求助
            </button>
        </div>
    </header>

    <!-- Main Content -->
    <main class="container mx-auto px-4 py-8">
        <!-- Camera Views -->
        <section class="mb-8">
            <h2 class="text-2xl font-bold text-gray-800 mb-6 flex items-center">
                <i data-feather="camera" class="mr-2 text-teal-600"></i> 作业监控
            </h2>
            
            <div class="grid grid-cols-1 lg:grid-cols-2 gap-6">
                <!-- Desktop Camera -->
                <div class="bg-white rounded-xl shadow-md overflow-hidden">
                    <div class="bg-gray-800 text-white px-4 py-3 flex items-center justify-between">
                        <div class="flex items-center">
                            <i data-feather="monitor" class="mr-2"></i>
                            <span class="font-medium">桌面视角</span>
                        </div>
                        <div class="flex space-x-2">
                            <button class="p-1 rounded hover:bg-gray-700">
                                <i data-feather="maximize" class="w-4 h-4"></i>
                            </button>
                            <button class="p-1 rounded hover:bg-gray-700">
                                <i data-feather="settings" class="w-4 h-4"></i>
                            </button>
                        </div>
                    </div>
                    <div class="relative">
                        <img src="http://static.photos/workspace/640x360/789" alt="桌面视角" class="w-full h-64 object-cover">
                        <div class="absolute bottom-3 left-3 bg-black bg-opacity-50 text-white px-2 py-1 rounded text-sm">
                            <i data-feather="video" class="mr-1"></i> 录制中
                        </div>
                    </div>
                </div>
                
                <!-- Face Camera -->
                <div class="bg-white rounded-xl shadow-md overflow-hidden">
                    <div class="bg-gray-800 text-white px-4 py-3 flex items-center justify-between">
                        <div class="flex items-center">
                            <i data-feather="user" class="mr-2"></i>
                            <span class="font-medium">我的正面</span>
                        </div>
                        <div class="flex space-x-2">
                            <button class="p-1 rounded hover:bg-gray-700">
                                <i data-feather="maximize" class="w-4 h-4"></i>
                            </button>
                            <button class="p-1 rounded hover:bg-gray-700">
                                <i data-feather="settings" class="w-4 h-4"></i>
                            </button>
                        </div>
                    </div>
                    <div class="relative">
                        <img src="http://static.photos/people/640x360/321" alt="我的正面" class="w-full h-64 object-cover">
                        <div class="absolute bottom-3 left-3 bg-black bg-opacity-50 text-white px-2 py-1 rounded text-sm">
                            <i data-feather="video" class="mr-1"></i> 录制中
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Help Request Section -->
        <section class="bg-white rounded-xl shadow-md p-6">
            <h2 class="text-2xl font-bold text-gray-800 mb-4 flex items-center">
                <i data-feather="help-circle" class="mr-2 text-amber-500"></i> 请求帮助
            </h2>
            
            <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
                <button id="screenshotHelp" class="border border-gray-200 rounded-lg p-4 hover:bg-gray-50 flex flex-col items-center">
                    <i data-feather="camera" class="text-amber-500 mb-2" style="width: 24px; height: 24px;"></i>
                    <span class="font-medium text-gray-700">截图求助</span>
                    <p class="text-sm text-gray-500 mt-1 text-center">截取当前屏幕向家长求助</p>
                </button>
                
                <button id="voiceHelp" class="border border-gray-200 rounded-lg p-4 hover:bg-gray-50 flex flex-col items-center">
                    <i data-feather="mic" class="text-amber-500 mb-2" style="width: 24px; height: 24px;"></i>
                    <span class="font-medium text-gray-700">语音求助</span>
                    <p class="text-sm text-gray-500 mt-1 text-center">录制语音说明问题</p>
                </button>
                
                <button id="whiteboardHelp" class="border border-gray-200 rounded-lg p-4 hover:bg-gray-50 flex flex-col items-center">
                    <i data-feather="pen-tool" class="text-amber-500 mb-2" style="width: 24px; height: 24px;"></i>
                    <span class="font-medium text-gray-700">白板求助</span>
                    <p class="text-sm text-gray-500 mt-1 text-center">使用白板与家长互动</p>
                </button>
            </div>
            
            <div class="mt-6 pt-6 border-t border-gray-200">
                <h3 class="font-medium text-gray-700 mb-3">最近求助记录</h3>
                <div class="space-y-3">
                    <div class="flex items-center p-3 bg-amber-50 rounded-lg">
                        <i data-feather="check-circle" class="text-green-500 mr-3"></i>
                        <div class="flex-1">
                            <p class="font-medium text-gray-800">数学题求助</p>
                            <p class="text-sm text-gray-600">今天 15:30 • 已解决</p>
                        </div>
                        <button class="text-amber-600 hover:text-amber-800">
                            <i data-feather="refresh-cw"></i>
                        </button>
                    </div>
                    
                    <div class="flex items-center p-3 bg-amber-50 rounded-lg">
                        <i data-feather="clock" class="text-amber-500 mr-3"></i>
                        <div class="flex-1">
                            <p class="font-medium text-gray-800">英语阅读理解</p>
                            <p class="text-sm text-gray-600">今天 14:45 • 等待回复</p>
                        </div>
                        <button class="text-amber-600 hover:text-amber-800">
                            <i data-feather="more-vertical"></i>
                        </button>
                    </div>
                </div>
            </div>
        </section>
    </main>

    <!-- Help Modal -->
    <div id="helpModal" class="fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center hidden z-50">
        <div class="bg-white rounded-xl w-11/12 max-w-md p-6">
            <div class="flex justify-between items-center mb-4">
                <h3 class="text-lg font-semibold text-gray-800">发送求助请求</h3>
                <button id="closeHelpModal" class="text-gray-500 hover:text-gray-700">
                    <i data-feather="x"></i>
                </button>
            </div>
            
            <div class="mb-4">
                <label class="block text-sm font-medium text-gray-700 mb-2">描述你的问题</label>
                <textarea id="problemDescription" rows="3" class="w-full px-3 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-teal-500" placeholder="简单描述一下你遇到的问题..."></textarea>
            </div>
            
            <div class="mb-6">
                <label class="block text-sm font-medium text-gray-700 mb-2">附加信息</label>
                <div class="flex items-center justify-center w-full">
                    <label for="dropzone-file" class="flex flex-col items-center justify-center w-full h-32 border-2 border-gray-300 border-dashed rounded-lg cursor-pointer bg-gray-50 hover:bg-gray-100">
                        <div class="flex flex-col items-center justify-center pt-5 pb-6">
                            <i data-feather="upload" class="w-8 h-8 mb-2 text-gray-500"></i>
                            <p class="text-sm text-gray-500"><span class="font-semibold">点击上传</span> 或拖拽文件</p>
                            <p class="text-xs text-gray-500">PNG, JPG, GIF (MAX. 10MB)</p>
                        </div>
                        <input id="dropzone-file" type="file" class="hidden" />
                    </label>
                </div>
            </div>
            
            <div class="flex justify-end space-x-3">
                <button id="cancelHelpBtn" class="px-4 py-2 border border-gray-300 rounded-lg text-gray-700 hover:bg-gray-50">
                    取消
                </button>
                <button id="sendHelpBtn" class="px-4 py-2 bg-amber-500 text-white rounded-lg hover:bg-amber-600">
                    发送求助
                </button>
            </div>
        </div>
    </div>

    <script>
        // Initialize Feather Icons
        feather.replace();
        
        // DOM Elements
        const helpBtn = document.getElementById('helpBtn');
        const helpModal = document.getElementById('helpModal');
        const closeHelpModal = document.getElementById('closeHelpModal');
        const cancelHelpBtn = document.getElementById('cancelHelpBtn');
        const sendHelpBtn = document.getElementById('sendHelpBtn');
        const screenshotHelp = document.getElementById('screenshotHelp');
        const voiceHelp = document.getElementById('voiceHelp');
        const whiteboardHelp = document.getElementById('whiteboardHelp');
        
        // Event Listeners
        helpBtn.addEventListener('click', () => {
            helpModal.classList.remove('hidden');
        });
        
        closeHelpModal.addEventListener('click', () => {
            helpModal.classList.add('hidden');
        });
        
        cancelHelpBtn.addEventListener('click', () => {
            helpModal.classList.add('hidden');
        });
        
        sendHelpBtn.addEventListener('click', () => {
            // Simulate sending help request
            alert('求助请求已发送给家长!');
            helpModal.classList.add('hidden');
        });
        
        // Quick help buttons
        screenshotHelp.addEventListener('click', () => {
            alert('正在截取屏幕...');
        });
        
        voiceHelp.addEventListener('click', () => {
            alert('开始录音,请说出你的问题...');
        });
        
        whiteboardHelp.addEventListener('click', () => {
            alert('正在启动白板...');
        });
        
        // Simulate connection status change
        setInterval(() => {
            const status = document.getElementById('connectionStatus');
            if (Math.random() > 0.95) {
                status.innerHTML = '<i data-feather="wifi-off" class="mr-1"></i> 连接断开';
                status.className = 'inline-flex items-center px-3 py-1 rounded-full text-sm font-medium bg-red-100 text-red-800';
            } else {
                status.innerHTML = '<i data-feather="wifi" class="mr-1"></i> 已连接';
                status.className = 'inline-flex items-center px-3 py-1 rounded-full text-sm font-medium bg-green-100 text-green-800';
            }
            feather.replace();
        }, 5000);
    </script>
</body>
</html>