// 结束默写并显示成绩
        function endDictation() {
            dictationStarted = false;
            // 计算成绩
            let correctCount = 0;
            const errorDetails = [];
            for (let i = 0; i < importedWords.length; i++) {
                // 修复：比较用户答案和正确答案 (都是字符串)
                if (userAnswers[i] === correctAnswers[i]) {
                    correctCount++;
                } else {
                    // 记录错误详情 (包含翻译)
                    errorDetails.push({
                        number: i + 1,
                        word: correctAnswers[i], // 正确答案是英文单词字符串
                        translation: importedWords[i].translation, // 获取翻译
                        userAnswer: userAnswers[i] || '(未作答)'
                    });
                }
            }
            const totalCount = importedWords.length;
            const accuracy = totalCount > 0 ? Math.round((correctCount / totalCount) * 100) : 0;
            // 显示成绩报告
            document.getElementById('dictationArea').style.display = 'none';
            document.getElementById('resultArea').style.display = 'block';
            // 更新成绩显示
            document.getElementById('finalScore').textContent = accuracy + '%';
            document.getElementById('correctCount').textContent = correctCount;
            document.getElementById('wrongCount').textContent = totalCount - correctCount;
            document.getElementById('totalCount').textContent = totalCount;

            // --- 从主进程获取切屏次数并更新显示 ---
            // 现在使用正确的 IPC 调用
            let switchCountValue = 0; // 初始化变量
            const switchCountPromise = (window.electronAPI && typeof window.electronAPI.getSwitchCount === 'function')
                ? window.electronAPI.getSwitchCount()
                : Promise.resolve(0); // 如果 API 不可用，返回 0

            switchCountPromise
                .then((switchCount) => {
                    const switchCountValue = typeof switchCount === 'number' ? switchCount : 0;
                    document.getElementById('switchCountFinal').textContent = switchCountValue;
                    console.log("成功获取主进程切屏次数:", switchCountValue); // 调试信息
                })
                .catch((error) => {
                    console.error("获取切屏次数失败:", error);
                    document.getElementById('switchCountFinal').textContent = '获取失败';
                });
            // --- 结束更新 ---

            // 根据正确率显示等级
            let gradeClass = '';
            let gradeText = '';
            if (accuracy >= 90) {
                gradeClass = 'grade-a';
                gradeText = 'A (优秀)';
            } else if (accuracy >= 80) {
                gradeClass = 'grade-b';
                gradeText = 'B (良好)';
            } else if (accuracy >= 70) {
                gradeClass = 'grade-c';
                gradeText = 'C (及格)';
            } else {
                gradeClass = 'grade-d';
                gradeText = 'D (需要努力)';
            }
            const gradeBadge = document.getElementById('gradeBadge');
            gradeBadge.textContent = '等级: ' + gradeText;
            gradeBadge.className = 'grade-badge ' + gradeClass;
            // 更新圆形进度条
            const scoreCircle = document.querySelector('.score-circle');
            const gradientDegree = (accuracy / 100) * 360;
            scoreCircle.style.background = `conic-gradient(#7cffcb 0deg ${gradientDegree}deg, #5de6ff ${gradientDegree}deg 360deg)`;
            // 显示错误详情
            const errorList = document.getElementById('errorList');
            errorList.innerHTML = '';
            if (errorDetails.length > 0) {
                errorDetails.forEach(error => {
                    const li = document.createElement('li');
                    li.className = 'error-item';
                    // 修改：显示翻译
                    li.innerHTML = `
                        <div class="error-number">${error.number}.</div>
                        <div class="error-content">
                            <div class="error-word">${error.word} ${error.translation ? `(${error.translation})` : ''}</div>
                            <div class="error-answer">您的答案: ${error.userAnswer}</div>
                            <div class="error-correct">
                                <i class="fas fa-times" style="color: #ff6b6b;"></i>
                                <span class="error-arrow">→</span>
                                <i class="fas fa-check" style="color: #7cffcb;"></i>
                                <span style="margin-left: 10px;">正确答案: ${error.word}</span>
                            </div>
                        </div>
                    `;
                    errorList.appendChild(li);
                });
            } else {
                const li = document.createElement('li');
                li.innerHTML = '<div style="color: #7cffcb; text-align: center; padding: 20px;"><i class="fas fa-check-circle"></i> 恭喜！全部正确！</div>';
                errorList.appendChild(li);
            }
        }