// Version 1.2 - UI升级 + 上传自动填充
document.addEventListener('DOMContentLoaded', function() {
    // API 基础地址
    const API_BASE = '/api';

    // 全局状态
    let currentSurveyId = null;
    let currentQuestions = [];

    // 显示对应板块
    function showSection(sectionId) {
        document.querySelectorAll('main > section').forEach(s => s.style.display = 'none');
        document.getElementById(sectionId).style.display = 'block';
        if (sectionId === 'list') loadSurveys();
    }

    // 导航点击
    document.querySelectorAll('nav a').forEach(link => {
        link.addEventListener('click', e => {
            e.preventDefault();
            const href = link.getAttribute('href').substring(1);
            showSection(href);
        
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
    
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});

    // 加载问卷列表
    async function loadSurveys() {
        const container = document.getElementById('survey-list');
        container.innerHTML = '<div class="loading">加载中...</div>';
        try {
            const res = await fetch(API_BASE + '/surveys');
            const surveys = await res.json();
            if (surveys.length === 0) {
                container.innerHTML = '<p class="empty">暂无问卷。</p>';
                return;
            }
            container.innerHTML = '';
            surveys.forEach(s => {
                const div = document.createElement('div');
                div.className = 'survey-card';
                div.innerHTML = `
                    <h3>${s.title}</h3>
                    <p>${s.description || '无描述'}</p>
                    <small>创建于 ${new Date(s.created_at).toLocaleString()}</small>
                    <button onclick="viewSurvey(${s.id})">查看/回答</button>
                `;
                container.appendChild(div);
            
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
        } catch (err) {
            container.innerHTML = '<p class="error">加载失败，请检查网络。</p>';
            console.error(err);
        }
    }

    // 查看问卷详情
    async function viewSurvey(id) {
        currentSurveyId = id;
        const res = await fetch(API_BASE + '/surveys');
        const surveys = await res.json();
        const survey = surveys.find(s => s.id == id);
        if (!survey) {
            alert('问卷不存在');
            return;
        }
        document.getElementById('survey-info').innerHTML = `
            <h3>${survey.title}</h3>
            <p>${survey.description || ''}</p>
        `;
        // 获取问题
        const qRes = await fetch(API_BASE + '/surveys/' + id + '/questions');
        if (qRes.ok) {
            currentQuestions = await qRes.json();
        } else {
            // 模拟问题
            currentQuestions = [
                { id: 1, text: '请填写您的反馈', type: 'text' },
                { id: 2, text: '您是否推荐本产品？', type: 'radio' }
            ];
        }
        const container = document.getElementById('questions-list');
        container.innerHTML = '';
        currentQuestions.forEach((q, idx) => {
            const div = document.createElement('div');
            div.className = 'question-item';
            div.innerHTML = `
                <p><strong>${idx + 1}. ${q.text}</strong></p>
                ${q.type === 'text' ? `
                    <textarea id="answer-${q.id}" rows="3" placeholder="输入回答..."></textarea>
                    <button class="voice-btn" onclick="startSpeech(${q.id})">🎤 语音输入</button>
                    <span id="status-${q.id}" class="status"></span>
                ` : `
                    <label><input type="radio" name="q${q.id}" value="是"> 是</label>
                    <label><input type="radio" name="q${q.id}" value="否"> 否</label>
                `}
            `;
            container.appendChild(div);
        
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
        showSection('survey-detail');
    }

    // 语音识别 - 增强版
    function startSpeech(questionId) {
        // 检查浏览器支持
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            alert('您的浏览器不支持语音识别，请使用 Chrome 25+ 或 Edge 79+ 版本。');
            return;
        }
        // 检查麦克风权限
        if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
            navigator.mediaDevices.getUserMedia({ audio: true })
                .then(stream => {
                    stream.getTracks().forEach(track => track.stop()); // 仅检查权限，立即释放
                    proceedSpeechRecognition(questionId);
                })
                .catch(err => {
                    console.error('麦克风权限被拒绝或不可用:', err);
                    alert('请允许麦克风权限，否则无法使用语音输入。');
                
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
        } else {
            proceedSpeechRecognition(questionId);
        }
    }
    
    function proceedSpeechRecognition(questionId) {
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.maxAlternatives = 1;
        const status = document.getElementById('status-' + questionId);
        const answerInput = document.getElementById('answer-' + questionId);
        if (!status || !answerInput) {
            console.error('找不到状态或输入框');
            return;
        }
        status.textContent = '🎤 聆听中...（请开始说话）';
        status.classList.add('recording');
        
        recognition.onresult = event => {
            if (event.results.length > 0 && event.results[0].length > 0) {
                const transcript = event.results[0][0].transcript;
                answerInput.value = transcript;
                status.textContent = '✅ 识别完成: ' + transcript.substring(0, 30) + (transcript.length > 30 ? '...' : '');
            } else {
                status.textContent = '⚠️ 未检测到语音';
            }
            status.classList.remove('recording');
        };
        
        recognition.onerror = event => {
            let errorMsg = '❌ 识别失败';
            switch (event.error) {
                case 'no-speech': errorMsg = '未检测到语音，请重试'; break;
                case 'audio-capture': errorMsg = '麦克风不可用'; break;
                case 'not-allowed': errorMsg = '麦克风权限被拒绝'; break;
                default: errorMsg = '识别错误: ' + event.error;
            }
            status.textContent = errorMsg;
            status.classList.remove('recording');
            console.error('Speech recognition error:', event.error);
        };
        
        recognition.onend = () => {
            if (status.textContent.includes('聆听中')) {
                status.textContent = '🛑 识别超时';
                status.classList.remove('recording');
            }
        };
        
        try {
            recognition.start();
            setTimeout(() => {
                if (status.textContent.includes('聆听中')) {
                    recognition.stop();
                }
            }, 10000); // 超时 10 秒
        } catch (err) {
            status.textContent = '❌ 启动语音识别失败';
            console.error('recognition.start error:', err);
        }
    }

    // 提交答案
    async function submitAnswers() {
        const answers = currentQuestions.map(q => {
            if (q.type === 'text') {
                return {
                    questionId: q.id,
                    answer: document.getElementById('answer-' + q.id).value
                };
            } else {
                const selected = document.querySelector(`input[name="q${q.id}"]:checked`);
                return {
                    questionId: q.id,
                    answer: selected ? selected.value : ''
                };
            }
        
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
        try {
            const res = await fetch(API_BASE + '/surveys/' + currentSurveyId + '/responses', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ answers })
            
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
            if (res.ok) {
                alert('提交成功！');
                showSection('list');
            } else {
                alert('提交失败');
            }
        } catch (err) {
            alert('网络错误');
        }
    }

    // 创建问卷
    let questionCount = 0;
    function addQuestion() {
        const container = document.getElementById('questions-container');
        const div = document.createElement('div');
        div.className = 'question-item';
        div.innerHTML = `
            <label>问题文本：<input type="text" class="q-text" placeholder="例如：您的年龄？"></label>
            <label>类型：
                <select class="q-type">
                    <option value="text">文本</option>
                    <option value="radio">单选</option>
                </select>
            </label>
            <button type="button" class="danger" onclick="this.parentElement.remove()">删除</button>
        `;
        container.appendChild(div);
        questionCount++;
    }
    document.getElementById('create-form').addEventListener('submit', async e => {
        e.preventDefault();
        const title = document.getElementById('title').value;
        const description = document.getElementById('description').value;
        const questions = [];
        document.querySelectorAll('#questions-container .question-item').forEach(item => {
            const text = item.querySelector('.q-text').value;
            const type = item.querySelector('.q-type').value;
            if (text.trim()) {
                questions.push({ text, type 
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
            }
        
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
        const payload = { title, description, questions };
        try {
            const res = await fetch(API_BASE + '/surveys', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify(payload)
            
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
            if (res.ok) {
                alert('问卷创建成功！');
                document.getElementById('create-form').reset();
                document.getElementById('questions-container').innerHTML = '';
                showSection('list');
            } else {
                alert('创建失败');
            }
        } catch (err) {
            alert('网络错误');
        }
    
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});

    // 文件上传 - 改进版：自动填充
    async function uploadFile() {
        const input = document.getElementById('file-input');
        if (!input.files.length) {
            alert('请先选择文件');
            return;
        }
        const file = input.files[0];
        const formData = new FormData();
        formData.append('file', file);
        const resultDiv = document.getElementById('upload-result');
        resultDiv.innerHTML = '<div class="loading">上传解析中...</div>';
        try {
            const res = await fetch(API_BASE + '/upload-parse', {
                method: 'POST',
                body: formData
            
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
            const data = await res.json();
            if (res.ok) {
                // 自动填充到创建问卷表单
                document.getElementById('title').value = '文档导入问卷 ' + new Date().toLocaleString();
                document.getElementById('description').value = '自动从文档生成';
                document.getElementById('questions-container').innerHTML = '';
                data.questions.forEach(q => {
                    addQuestion();
                    const items = document.querySelectorAll('#questions-container .question-item');
                    const last = items[items.length - 1];
                    last.querySelector('.q-text').value = q.text;
                    last.querySelector('.q-type').value = q.type || 'text';
                
    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});
                // 跳转到创建问卷页面
                showSection('create');
                resultDiv.innerHTML = '<div class="success">解析成功，已自动填充到创建表单！</div>';
            } else {
                resultDiv.innerHTML = `<div class="error">解析失败：${data.error}</div>`;
            }
        } catch (err) {
            resultDiv.innerHTML = '<div class="error">上传失败，请检查网络。</div>';
        }
    }

    // 初始化显示列表
    showSection('list');

    // 暴露全局函数
    window.showSection = showSection;
    window.loadSurveys = loadSurveys;
    window.viewSurvey = viewSurvey;
    window.startSpeech = startSpeech;
    window.submitAnswers = submitAnswers;
    window.addQuestion = addQuestion;
    window.uploadFile = uploadFile;

    // 全局语音测试函数（可在浏览器控制台调用）
    window.testVoice = function() {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.log('❌ 浏览器不支持 SpeechRecognition API');
            return false;
        }
        console.log('✅ 浏览器支持语音识别');
        const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
        const recognition = new SpeechRecognition();
        recognition.lang = 'zh-CN';
        recognition.interimResults = false;
        recognition.onresult = e => console.log('识别结果:', e.results[0][0].transcript);
        recognition.onerror = e => console.log('识别错误:', e.error);
        recognition.start();
        console.log('🎤 语音识别已启动，请说话...');
        return true;
    };
    
    // 自动检测并提示
    window.addEventListener('load', () => {
        if (!('webkitSpeechRecognition' in window) && !('SpeechRecognition' in window)) {
            console.warn('⚠️ 当前浏览器不支持语音识别功能，请使用 Chrome 或 Edge 以获得完整体验。');
        }
    });
});