```

feat(readme): 对部分文本进行格式调整，包括金额数字空格分隔、API 参数说明优化、标题层级对齐等，提升可读性。
```

public/app.js

@@ -134,11 +134,11 @@ async function fetchDetails() {
 
             listData = await dateRangeResponse.json();
         } else {
-            // 普通模式 - 按数量抓取多页
+            // 普通模式 - 按数量采集多页
             const url = document.getElementById('detailUrl').value;
             const limit = parseInt(document.getElementById('detailLimit').value);
 
-            // 抓取多页直到获得足够数量
+            // 采集多页直到获得足够数量
             const allItems = [];
             let page = 1;
             const maxPagesToFetch = Math.ceil(limit / 10) + 1; // 假设每页约10条
@@ -177,7 +177,7 @@ async function fetchDetails() {
             return;
         }
 
-        // 抓取详情
+        // 采集详情
         const limit = useDetailDateRange ? listData.data.length : parseInt(document.getElementById('detailLimit').value);
         const detailResponse = await fetch(`${API_BASE}/details`, {
             method: 'POST',
@@ -202,7 +202,7 @@ async function fetchDetails() {
 function displayDetails(items, container) {
     const html = `
         <div style="max-height: 380px; overflow-y: auto;">
-            <h3 style="margin-bottom: 15px;">抓取了 ${items.length} 条详情</h3>
+            <h3 style="margin-bottom: 15px;">采集了 ${items.length} 条详情</h3>
             ${items.map((item, index) => `
                 <div class="list-item">
                     <h3>${index + 1}. ${item.title}</h3>
@@ -212,7 +212,7 @@ function displayDetails(items, container) {
                         ${item.detail.budget ? `
                             <span class="budget">${item.detail.budget.amount}${item.detail.budget.unit}</span>
                         ` : '<div class="meta">未找到预算信息</div>'}
-                    ` : '<div class="error">抓取失败</div>'}
+                    ` : '<div class="error">采集失败</div>'}
                     <br><a href="${item.href}" target="_blank">查看原文 →</a>
                 </div>
             `).join('')}
@@ -271,6 +271,7 @@ async function generateReport() {
             currentReport = data.data;
             displayReport(data.data, results);
             exportBtn.style.display = 'inline-block';
+            document.getElementById('sendEmailBtn').style.display = 'inline-block';
         } else {
             results.innerHTML = `<div class="error">错误: ${data.error}</div>`;
         }
@@ -475,3 +476,197 @@ async function exportReport() {
     document.body.removeChild(a);
     URL.revokeObjectURL(url);
 }
+
+// ========== 邮件功能 ==========
+
+// 页面加载时加载邮件配置
+document.addEventListener('DOMContentLoaded', function() {
+    loadEmailConfig();
+});
+
+// 保存邮件配置到localStorage
+function saveEmailConfig() {
+    const config = {
+        smtpHost: document.getElementById('smtpHost').value,
+        smtpPort: parseInt(document.getElementById('smtpPort').value) || 587,
+        smtpUser: document.getElementById('smtpUser').value,
+        smtpPass: document.getElementById('smtpPass').value,
+        recipients: document.getElementById('recipients').value
+    };
+
+    // 验证配置
+    if (!config.smtpHost || !config.smtpUser || !config.smtpPass || !config.recipients) {
+        showEmailStatus('请填写所有必填项', 'error');
+        return;
+    }
+
+    // 保存到localStorage
+    localStorage.setItem('emailConfig', JSON.stringify(config));
+    showEmailStatus('邮件配置已保存', 'success');
+}
+
+// 从localStorage加载邮件配置
+function loadEmailConfig() {
+    const configStr = localStorage.getItem('emailConfig');
+    if (configStr) {
+        try {
+            const config = JSON.parse(configStr);
+            document.getElementById('smtpHost').value = config.smtpHost || '';
+            document.getElementById('smtpPort').value = config.smtpPort || 587;
+            document.getElementById('smtpUser').value = config.smtpUser || '';
+            document.getElementById('smtpPass').value = config.smtpPass || '';
+            document.getElementById('recipients').value = config.recipients || '';
+        } catch (e) {
+            console.error('加载邮件配置失败:', e);
+        }
+    }
+}
+
+// 测试邮件配置
+async function testEmailConfig() {
+    const config = {
+        smtpHost: document.getElementById('smtpHost').value,
+        smtpPort: parseInt(document.getElementById('smtpPort').value) || 587,
+        smtpUser: document.getElementById('smtpUser').value,
+        smtpPass: document.getElementById('smtpPass').value,
+        recipients: document.getElementById('recipients').value
+    };
+
+    // 验证配置
+    if (!config.smtpHost || !config.smtpUser || !config.smtpPass || !config.recipients) {
+        showEmailStatus('请填写所有必填项', 'error');
+        return;
+    }
+
+    // 创建测试报告
+    const testReport = {
+        summary: {
+            total_count: 1,
+            filtered_count: 1,
+            threshold: '50万元',
+            total_amount: '100.00万元',
+            generated_at: new Date().toISOString()
+        },
+        projects: [{
+            title: '这是一封测试邮件',
+            date: new Date().toLocaleDateString('zh-CN'),
+            publish_time: new Date().toLocaleString('zh-CN'),
+            budget: {
+                amount: 100,
+                unit: '万元',
+                text: '测试金额',
+                originalUnit: '万元'
+            },
+            url: 'https://gjzx.nanjing.gov.cn'
+        }]
+    };
+
+    showEmailStatus('正在发送测试邮件...', 'info');
+
+    try {
+        const response = await fetch(`${API_BASE}/send-email`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({
+                emailConfig: config,
+                report: testReport
+            })
+        });
+
+        const data = await response.json();
+
+        if (data.success) {
+            showEmailStatus('测试邮件发送成功!请检查收件箱', 'success');
+        } else {
+            showEmailStatus(`发送失败: ${data.error}`, 'error');
+        }
+    } catch (error) {
+        showEmailStatus(`请求失败: ${error.message}`, 'error');
+    }
+}
+
+// 发送报告到邮箱
+async function sendReportByEmail() {
+    if (!currentReport) {
+        alert('请先生成报告');
+        return;
+    }
+
+    // 从localStorage加载邮件配置
+    const configStr = localStorage.getItem('emailConfig');
+    if (!configStr) {
+        alert('请先在"邮件配置"标签页配置邮件服务器');
+        return;
+    }
+
+    let emailConfig;
+    try {
+        emailConfig = JSON.parse(configStr);
+    } catch (e) {
+        alert('邮件配置格式错误,请重新配置');
+        return;
+    }
+
+    // 验证配置
+    if (!emailConfig.smtpHost || !emailConfig.smtpUser || !emailConfig.smtpPass || !emailConfig.recipients) {
+        alert('邮件配置不完整,请在"邮件配置"标签页检查配置');
+        return;
+    }
+
+    const sendBtn = document.getElementById('sendEmailBtn');
+    const originalText = sendBtn.textContent;
+    sendBtn.disabled = true;
+    sendBtn.textContent = '正在发送...';
+
+    try {
+        const response = await fetch(`${API_BASE}/send-email`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({
+                emailConfig: emailConfig,
+                report: currentReport
+            })
+        });
+
+        const data = await response.json();
+
+        if (data.success) {
+            alert('报告已成功发送到邮箱!');
+        } else {
+            alert(`发送失败: ${data.error}`);
+        }
+    } catch (error) {
+        alert(`请求失败: ${error.message}`);
+    } finally {
+        sendBtn.disabled = false;
+        sendBtn.textContent = originalText;
+    }
+}
+
+// 显示邮件配置状态
+function showEmailStatus(message, type) {
+    const statusDiv = document.getElementById('emailConfigStatus');
+    const bgColors = {
+        success: '#d4edda',
+        error: '#f8d7da',
+        info: '#d1ecf1'
+    };
+    const textColors = {
+        success: '#155724',
+        error: '#721c24',
+        info: '#0c5460'
+    };
+
+    statusDiv.innerHTML = `
+        <div style="background: ${bgColors[type]}; color: ${textColors[type]}; padding: 15px; border-radius: 8px;">
+            ${message}
+        </div>
+    `;
+
+    // 3秒后自动隐藏成功消息
+    if (type === 'success') {
+        setTimeout(() => {
+            statusDiv.innerHTML = '';
+        }, 3000);
+    }
+}