feat: 删除亲情卡分类并优化搜索功能

- 移除亲情卡支出分类（前端+后端）
- 搜索结果添加点击编辑功能
- 提取 RecordModal 组件复用（index.js/search.js）
- 添加 useMemo 优化计算性能
- 优化类别查找为 O(1) 映射
- 添加删除分类接口输入验证

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/components/RecordModal.js

@@ -0,0 +1,146 @@
+import { Icon } from './icons';
+
+export default function RecordModal({
+  isOpen,
+  onClose,
+  onSubmit,
+  onDelete,
+  formData,
+  setFormData,
+  formError,
+  submitting,
+  deleting,
+  editingRecord,
+  categories,
+}) {
+  if (!isOpen) return null;
+
+  const handleTypeChange = (type) => {
+    setFormData({ ...formData, type, category: '' });
+  };
+
+  const isDisabled = submitting || deleting;
+
+  return (
+    <div className="modal-overlay modal-overlay--fullscreen" onClick={onClose}>
+      <div className="modal modal--fullscreen" onClick={(e) => e.stopPropagation()}>
+        <div className="modal-header">
+          <div>
+            <p className="eyebrow">{editingRecord ? '编辑记录' : '新增记录'}</p>
+            {editingRecord ? <h2>更新账目</h2> : null}
+          </div>
+          <button
+            type="button"
+            className="icon-button icon-button--ghost"
+            aria-label="关闭弹窗"
+            onClick={onClose}
+            disabled={isDisabled}
+          >
+            <Icon name="close" size={18} />
+          </button>
+        </div>
+        {formError && <div className="error-msg">{formError}</div>}
+        <form onSubmit={onSubmit}>
+          <div className="type-switch">
+            <button
+              type="button"
+              className={`type-btn expense ${formData.type === 'expense' ? 'active' : ''}`}
+              onClick={() => handleTypeChange('expense')}
+              disabled={isDisabled}
+            >
+              支出
+            </button>
+            <button
+              type="button"
+              className={`type-btn income ${formData.type === 'income' ? 'active' : ''}`}
+              onClick={() => handleTypeChange('income')}
+              disabled={isDisabled}
+            >
+              收入
+            </button>
+          </div>
+          <div className="form-group">
+            <label htmlFor="record-amount">金额</label>
+            <input
+              id="record-amount"
+              type="number"
+              className="amount-input"
+              value={formData.amount}
+              onChange={(e) => setFormData({ ...formData, amount: e.target.value })}
+              placeholder="0.00"
+              step="0.01"
+              required
+              disabled={isDisabled}
+            />
+          </div>
+          <div className="form-group">
+            <label>分类</label>
+            <div className="category-grid">
+              {categories[formData.type].map((cat) => (
+                <button
+                  key={cat.name}
+                  type="button"
+                  className={`category-btn ${formData.category === cat.name ? 'active' : ''}`}
+                  onClick={() => setFormData({ ...formData, category: cat.name })}
+                  disabled={isDisabled}
+                >
+                  <span className="icon">{cat.icon}</span>
+                  <span>{cat.name}</span>
+                </button>
+              ))}
+            </div>
+          </div>
+          <div className="form-group">
+            <label>日期</label>
+            <div className="datetime-picker">
+              <input
+                type="date"
+                value={formData.date}
+                onChange={(e) => setFormData({ ...formData, date: e.target.value })}
+                required
+                disabled={isDisabled}
+              />
+              <input
+                type="time"
+                value={formData.time || '00:00'}
+                onChange={(e) => setFormData({ ...formData, time: e.target.value })}
+                disabled={isDisabled}
+              />
+            </div>
+          </div>
+          <div className="form-group">
+            <label htmlFor="record-note">备注（可选）</label>
+            <input
+              id="record-note"
+              type="text"
+              value={formData.note}
+              onChange={(e) => setFormData({ ...formData, note: e.target.value })}
+              placeholder="添加备注..."
+              disabled={isDisabled}
+            />
+          </div>
+          <div className="modal-actions">
+            <button type="submit" className="btn btn-primary" disabled={isDisabled}>
+              {submitting ? (
+                <span className="button-content">
+                  <Icon name="spinner" size={16} className="is-spinning" />
+                  保存中...
+                </span>
+              ) : '保存'}
+            </button>
+            {editingRecord && (
+              <button
+                type="button"
+                className="btn btn-danger"
+                onClick={onDelete}
+                disabled={isDisabled}
+              >
+                {deleting ? '删除中...' : '删除'}
+              </button>
+            )}
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}

frontend/lib/api.js

@@ -91,6 +91,13 @@ export async function deleteRecord(id) {
   });
 }
 
+// 批量删除指定分类的记录
+export async function deleteRecordsByCategory(category) {
+  return apiCall(`/api/records/by-category/${encodeURIComponent(category)}`, {
+    method: 'DELETE',
+  });
+}
+
 // 搜索
 export async function searchRecords(keyword) {
   return apiCall(`/api/records/search?q=${encodeURIComponent(keyword)}`);

frontend/lib/categories.js

@@ -7,7 +7,6 @@ export const DEFAULT_CATEGORIES = {
     { name: '娱乐', icon: '🎮' },
     { name: '房租', icon: '🏠' },
     { name: '房贷', icon: '🏦' },
-    { name: '亲情卡', icon: '💳' },
     { name: '水电', icon: '💧' },
     { name: '衣服', icon: '👔' },
     { name: '通讯', icon: '📱' },

frontend/pages/index.js

@@ -1,9 +1,10 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useMemo } from 'react';
 import { useRouter } from 'next/router';
-import { isLoggedIn, getRecords, getStats, createRecord, updateRecord, deleteRecord } from '../lib/api';
+import { isLoggedIn, getRecords, getStats, createRecord, updateRecord, deleteRecord, getCategories } from '../lib/api';
 import { DEFAULT_CATEGORIES } from '../lib/categories';
 import AppShell from '../components/AppShell';
 import { Icon } from '../components/icons';
+import RecordModal from '../components/RecordModal';
 import { useToast } from '../components/ToastProvider';
 import { useConfirm } from '../components/ConfirmProvider';
 
@@ -21,6 +22,7 @@ export default function Home() {
   const [submitting, setSubmitting] = useState(false);
   const [deleting, setDeleting] = useState(false);
   const [formError, setFormError] = useState('');
+  const [categories, setCategories] = useState(DEFAULT_CATEGORIES);
   const [formData, setFormData] = useState({
     type: 'expense',
     amount: '',
@@ -54,12 +56,24 @@ export default function Home() {
   const loadData = async () => {
     setLoading(true);
     try {
-      const [recordsData, statsData] = await Promise.all([
+      const [recordsData, statsData, categoriesData] = await Promise.all([
         getRecords(getMonthStr(currentMonth), typeFilter),
         getStats(getMonthStr(currentMonth)),
+        getCategories(),
       ]);
       setRecords(recordsData);
       setStats(statsData);
+      // 合并默认分类和自定义分类
+      setCategories({
+        expense: [
+          ...DEFAULT_CATEGORIES.expense,
+          ...(categoriesData.expense || []).filter(c => !DEFAULT_CATEGORIES.expense.some(d => d.name === c.name))
+        ],
+        income: [
+          ...DEFAULT_CATEGORIES.income,
+          ...(categoriesData.income || []).filter(c => !DEFAULT_CATEGORIES.income.some(d => d.name === c.name))
+        ],
+      });
     } catch (err) {
       console.error(err);
       showToast(err.message, { tone: 'error' });
@@ -171,18 +185,26 @@ export default function Home() {
     }
   };
 
-  const groupedRecords = records.reduce((groups, record) => {
+  const groupedRecords = useMemo(() => {
+    return records.reduce((groups, record) => {
       const date = record.date.split(' ')[0];
       if (!groups[date]) groups[date] = [];
       groups[date].push(record);
       return groups;
     }, {});
+  }, [records]);
 
-  const sortedDates = Object.keys(groupedRecords).sort((a, b) => b.localeCompare(a));
+  const sortedDates = useMemo(
+    () => Object.keys(groupedRecords).sort((a, b) => b.localeCompare(a)),
+    [groupedRecords]
+  );
 
-  const getDayExpense = (date) => groupedRecords[date]
+  const getDayExpense = (date) => {
+    const dayRecords = groupedRecords[date] || [];
+    return dayRecords
       .filter((record) => record.type === 'expense')
       .reduce((sum, record) => sum + record.amount, 0);
+  };
 
   const homeHeaderContent = (
     <div className="header-center-container">
@@ -271,8 +293,7 @@ export default function Home() {
                   <span className="day-expense">支出 {formatMoney(getDayExpense(date))}</span>
                 </div>
                 {groupedRecords[date].map((record) => {
-                  const categories = DEFAULT_CATEGORIES[record.type];
+                  const cat = categories[record.type]?.find((item) => item.name === record.category) || { icon: '📝' };
-                  const cat = categories.find((item) => item.name === record.category) || { icon: '📝' };
                   return (
                     <button key={record.id} type="button" className="record-item" onClick={() => openEditModal(record)}>
                       <div className="record-left">
@@ -299,117 +320,19 @@ export default function Home() {
         <Icon name="plus" size={24} />
       </button>
 
-      {modalOpen && (
+      <RecordModal
-        <div className="modal-overlay modal-overlay--fullscreen" onClick={closeModal}>
+        isOpen={modalOpen}
-          <div className="modal modal--fullscreen" onClick={(e) => e.stopPropagation()}>
+        onClose={closeModal}
-            <div className="modal-header">
+        onSubmit={handleSubmit}
-              <div>
+        onDelete={handleDelete}
-                <p className="eyebrow">{editingRecord ? '编辑记录' : '新增记录'}</p>
+        formData={formData}
-                {editingRecord ? <h2>更新账目</h2> : null}
+        setFormData={setFormData}
-              </div>
+        formError={formError}
-              <button type="button" className="icon-button icon-button--ghost" aria-label="关闭弹窗" onClick={closeModal}>
+        submitting={submitting}
-                <Icon name="close" size={18} />
+        deleting={deleting}
-              </button>
+        editingRecord={editingRecord}
-            </div>
+        categories={categories}
-            {formError && <div className="error-msg">{formError}</div>}
-            <form onSubmit={handleSubmit}>
-              <div className="type-switch">
-                <button
-                  type="button"
-                  className={`type-btn expense ${formData.type === 'expense' ? 'active' : ''}`}
-                  onClick={() => setFormData({ ...formData, type: 'expense', category: '' })}
-                  disabled={submitting || deleting}
-                >
-                  支出
-                </button>
-                <button
-                  type="button"
-                  className={`type-btn income ${formData.type === 'income' ? 'active' : ''}`}
-                  onClick={() => setFormData({ ...formData, type: 'income', category: '' })}
-                  disabled={submitting || deleting}
-                >
-                  收入
-                </button>
-              </div>
-              <div className="form-group">
-                <label htmlFor="record-amount">金额</label>
-                <input
-                  id="record-amount"
-                  type="number"
-                  className="amount-input"
-                  value={formData.amount}
-                  onChange={(e) => setFormData({ ...formData, amount: e.target.value })}
-                  placeholder="0.00"
-                  step="0.01"
-                  required
-                  disabled={submitting || deleting}
       />
-              </div>
-              <div className="form-group">
-                <label>分类</label>
-                <div className="category-grid">
-                  {DEFAULT_CATEGORIES[formData.type].map((cat) => (
-                    <button
-                      key={cat.name}
-                      type="button"
-                      className={`category-btn ${formData.category === cat.name ? 'active' : ''}`}
-                      onClick={() => setFormData({ ...formData, category: cat.name })}
-                      disabled={submitting || deleting}
-                    >
-                      <span className="icon">{cat.icon}</span>
-                      <span>{cat.name}</span>
-                    </button>
-                  ))}
-                </div>
-              </div>
-              <div className="form-group">
-                <label>日期</label>
-                <div className="datetime-picker">
-                  <input
-                    type="date"
-                    value={formData.date}
-                    onChange={(e) => setFormData({ ...formData, date: e.target.value })}
-                    required
-                    disabled={submitting || deleting}
-                  />
-                  <input
-                    type="time"
-                    value={formData.time || '00:00'}
-                    onChange={(e) => setFormData({ ...formData, time: e.target.value })}
-                    disabled={submitting || deleting}
-                  />
-                </div>
-              </div>
-              <div className="form-group">
-                <label htmlFor="record-note">备注（可选）</label>
-                <input
-                  id="record-note"
-                  type="text"
-                  value={formData.note}
-                  onChange={(e) => setFormData({ ...formData, note: e.target.value })}
-                  placeholder="添加备注..."
-                  disabled={submitting || deleting}
-                />
-              </div>
-              <div className="modal-actions">
-                <button type="submit" className="btn btn-primary" disabled={submitting || deleting}>
-                  {submitting ? (
-                    <span className="button-content">
-                      <Icon name="spinner" size={16} className="is-spinning" />
-                      保存中...
-                    </span>
-                  ) : '保存'}
-                </button>
-                {editingRecord && (
-                  <button type="button" className="btn btn-danger" onClick={handleDelete} disabled={submitting || deleting}>
-                    {deleting ? '删除中...' : '删除'}
-                  </button>
-                )}
-              </div>
-            </form>
-          </div>
-        </div>
-      )}
     </AppShell>
   );
 }

frontend/pages/search.js

@@ -1,17 +1,33 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useMemo } from 'react';
 import { useRouter } from 'next/router';
-import { isLoggedIn, searchRecords } from '../lib/api';
+import { isLoggedIn, searchRecords, updateRecord, deleteRecord } from '../lib/api';
 import { DEFAULT_CATEGORIES } from '../lib/categories';
 import AppShell from '../components/AppShell';
 import { Icon } from '../components/icons';
+import RecordModal from '../components/RecordModal';
 import { useToast } from '../components/ToastProvider';
+import { useConfirm } from '../components/ConfirmProvider';
 
 export default function Search() {
   const router = useRouter();
   const { showToast } = useToast();
+  const confirm = useConfirm();
   const [keyword, setKeyword] = useState('');
   const [results, setResults] = useState([]);
   const [loading, setLoading] = useState(false);
+  const [modalOpen, setModalOpen] = useState(false);
+  const [editingRecord, setEditingRecord] = useState(null);
+  const [formData, setFormData] = useState({
+    type: 'expense',
+    amount: '',
+    category: '',
+    date: '',
+    time: '00:00',
+    note: '',
+  });
+  const [formError, setFormError] = useState('');
+  const [submitting, setSubmitting] = useState(false);
+  const [deleting, setDeleting] = useState(false);
 
   useEffect(() => {
     if (!isLoggedIn()) {
@@ -38,19 +54,127 @@ export default function Search() {
     }
   };
 
+  const openEditModal = (record) => {
+    const [datePart, timePart] = record.date.split(' ');
+    setEditingRecord(record);
+    setFormData({
+      type: record.type,
+      amount: record.amount.toString(),
+      category: record.category,
+      date: datePart,
+      time: timePart || '00:00',
+      note: record.note || '',
+    });
+    setFormError('');
+    setModalOpen(true);
+  };
+
+  const closeModal = () => {
+    if (submitting || deleting) return;
+    setModalOpen(false);
+    setEditingRecord(null);
+    setFormError('');
+  };
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    if (!formData.amount || !formData.category || !formData.date) {
+      setFormError('请填写完整信息');
+      return;
+    }
+
+    setSubmitting(true);
+    setFormError('');
+    try {
+      const data = {
+        type: formData.type,
+        amount: parseFloat(formData.amount),
+        category: formData.category,
+        date: `${formData.date} ${formData.time || '00:00'}`,
+        note: formData.note,
+      };
+
+      // 先调用 API 保存到数据库
+      await updateRecord(editingRecord.id, data);
+
+      // 直接更新本地状态，避免重新获取
+      const updatedResults = results.map(r =>
+        r.id === editingRecord.id
+          ? { ...r, ...data, amount: parseFloat(data.amount), date: data.date }
+          : r
+      );
+      setResults(updatedResults);
+      showToast('记录已更新', { tone: 'success' });
+      closeModal();
+    } catch (err) {
+      setFormError(err.message);
+      showToast(err.message, { tone: 'error' });
+    } finally {
+      setSubmitting(false);
+    }
+  };
+
+  const handleDelete = async () => {
+    if (!editingRecord) return;
+    const shouldDelete = await confirm({
+      title: '删除这条记录？',
+      description: '删除后将无法恢复，请确认是否继续。',
+      confirmText: '删除',
+    });
+    if (!shouldDelete) return;
+
+    setDeleting(true);
+    try {
+      await deleteRecord(editingRecord.id);
+      // 直接从本地状态移除，避免重新获取
+      const filteredResults = results.filter(r => r.id !== editingRecord.id);
+      setResults(filteredResults);
+      showToast('记录已删除', { tone: 'success' });
+      closeModal();
+    } catch (err) {
+      setFormError(err.message);
+      showToast(err.message, { tone: 'error' });
+    } finally {
+      setDeleting(false);
+    }
+  };
+
   const formatMoney = (num) => (num || 0).toFixed(2);
 
-  const groupedResults = results.reduce((groups, record) => {
+  const groupedResults = useMemo(() => {
+    return results.reduce((groups, record) => {
       const date = record.date.split(' ')[0];
       if (!groups[date]) groups[date] = [];
       groups[date].push(record);
       return groups;
     }, {});
+  }, [results]);
 
-  const sortedDates = Object.keys(groupedResults).sort((a, b) => b.localeCompare(a));
+  const sortedDates = useMemo(
-  const totalIncome = results.filter((record) => record.type === 'income').reduce((sum, record) => sum + record.amount, 0);
+    () => Object.keys(groupedResults).sort((a, b) => b.localeCompare(a)),
-  const totalExpense = results.filter((record) => record.type === 'expense').reduce((sum, record) => sum + record.amount, 0);
+    [groupedResults]
-  const totalBalance = totalIncome - totalExpense;
+  );
+
+  const { totalIncome, totalExpense, totalBalance } = useMemo(() => {
+    let income = 0;
+    let expense = 0;
+    for (const record of results) {
+      if (record.type === 'income') income += record.amount;
+      else expense += record.amount;
+    }
+    return { totalIncome: income, totalExpense: expense, totalBalance: income - expense };
+  }, [results]);
+
+  // O(1) category icon lookup map
+  const categoryIconMap = useMemo(() => {
+    const icons = {};
+    for (const type of ['expense', 'income']) {
+      for (const cat of DEFAULT_CATEGORIES[type]) {
+        icons[`${type}:${cat.name}`] = cat.icon;
+      }
+    }
+    return icons;
+  }, []);
 
   const actions = (
     <button type="button" className="icon-button" aria-label="设置" onClick={() => router.push('/settings')}>
@@ -115,12 +239,11 @@ export default function Search() {
                   {new Date(date).toLocaleDateString('zh-CN', { month: 'short', day: 'numeric', weekday: 'short' })}
                 </div>
                 {groupedResults[date].map((record) => {
-                  const categories = DEFAULT_CATEGORIES[record.type];
+                  const icon = categoryIconMap[`${record.type}:${record.category}`] || '📝';
-                  const cat = categories.find((item) => item.name === record.category) || { icon: '📝' };
                   return (
-                    <div key={record.id} className="record-item record-item--static">
+                    <button key={record.id} type="button" className="record-item record-item--static" onClick={() => openEditModal(record)}>
                       <div className="record-left">
-                        <div className="record-icon">{cat.icon}</div>
+                        <div className="record-icon">{icon}</div>
                         <div className="record-info">
                           <div className="record-category">{record.category}</div>
                           {record.note && <div className="record-note">{record.note}</div>}
@@ -130,7 +253,7 @@ export default function Search() {
                         {record.type === 'income' ? '+' : '-'}
                         {formatMoney(record.amount)}
                       </div>
-                    </div>
+                    </button>
                   );
                 })}
               </div>
@@ -148,6 +271,20 @@ export default function Search() {
           <p>输入关键词开始搜索</p>
         </div>
       )}
+
+      <RecordModal
+        isOpen={modalOpen}
+        onClose={closeModal}
+        onSubmit={handleSubmit}
+        onDelete={handleDelete}
+        formData={formData}
+        setFormData={setFormData}
+        formError={formError}
+        submitting={submitting}
+        deleting={deleting}
+        editingRecord={editingRecord}
+        categories={DEFAULT_CATEGORIES}
+      />
     </AppShell>
   );
 }

frontend/pages/settings.js

@@ -74,36 +74,17 @@ export default function Settings() {
   };
 
   return (
-    <AppShell title="设置" subtitle="数据、账号与应用信息" compactHeader>
+    <AppShell title="设置" subtitle="管理您的数据与账号" compactHeader>
-      <section className="card settings-section settings-section--refresh">
+      <div className="settings-list">
-        <div className="section-heading section-heading--compact">
+        <button type="button" className="settings-link" onClick={handleExport} disabled={exporting || importing}>
-          <div>
+          <Icon name="download" size={18} />
-            <p className="eyebrow">数据管理</p>
+          <span>导出数据</span>
-            <h2>导入与导出</h2>
+          <Icon name="chevronRight" size={16} className="chevron" />
-          </div>
-        </div>
-        <div className="settings-item">
-          <div className="settings-info">
-            <div className="settings-title">导出数据</div>
-            <div className="settings-desc">将所有账目导出为 JSON 文件，方便备份。</div>
-          </div>
-          <button type="button" className="btn btn-primary btn-inline" onClick={handleExport} disabled={exporting || importing}>
-            <span className="button-content">
-              <Icon name="download" size={16} />
-              {exporting ? '导出中...' : '导出'}
-            </span>
         </button>
-        </div>
+        <button type="button" className="settings-link" onClick={() => fileInputRef.current?.click()} disabled={exporting || importing}>
-        <div className="settings-item">
+          <Icon name="upload" size={18} />
-          <div className="settings-info">
+          <span>导入数据</span>
-            <div className="settings-title">导入数据</div>
+          <Icon name="chevronRight" size={16} className="chevron" />
-            <div className="settings-desc">从 JSON 文件恢复账目数据。</div>
-          </div>
-          <button type="button" className="btn btn-secondary btn-inline" onClick={() => fileInputRef.current?.click()} disabled={exporting || importing}>
-            <span className="button-content">
-              <Icon name="upload" size={16} />
-              {importing ? '导入中...' : '导入'}
-            </span>
         </button>
         <input
           type="file"
@@ -113,41 +94,18 @@ export default function Settings() {
           style={{ display: 'none' }}
         />
       </div>
-      </section>
 
-      <section className="card settings-section settings-section--refresh">
+      <div className="settings-list">
-        <div className="section-heading section-heading--compact">
+        <button type="button" className="settings-link settings-link--danger" onClick={handleLogout} disabled={loggingOut}>
-          <div>
+          <Icon name="logout" size={18} />
-            <p className="eyebrow">账号</p>
+          <span>{loggingOut ? '退出中...' : '退出登录'}</span>
-            <h2>登录状态</h2>
+          <Icon name="chevronRight" size={16} className="chevron" />
-          </div>
-        </div>
-        <div className="settings-item settings-item--stacked">
-          <div className="settings-info">
-            <div className="settings-title">退出登录</div>
-            <div className="settings-desc">从当前设备安全退出，并返回登录页。</div>
-          </div>
-          <button type="button" className="btn btn-danger btn-inline" onClick={handleLogout} disabled={loggingOut}>
-            <span className="button-content">
-              <Icon name="logout" size={16} />
-              {loggingOut ? '退出中...' : '退出登录'}
-            </span>
         </button>
       </div>
-      </section>
 
-      <section className="card settings-section settings-section--refresh">
+      <div className="settings-footer">
-        <div className="section-heading section-heading--compact">
-          <div>
-            <p className="eyebrow">关于</p>
-            <h2>应用信息</h2>
-          </div>
-        </div>
-        <div className="about-info">
         <p>简易记账本 v1.0</p>
-          <p className="sub">基于 React + Next.js 开发</p>
       </div>
-      </section>
     </AppShell>
   );
 }

frontend/styles/globals.css

@@ -954,7 +954,9 @@ textarea:focus-visible {
 }
 
 .confirm-card__actions .btn {
-  flex: 1 1 180px;
+  flex: 0 1 auto;
+  min-width: 100px;
+  min-height: 40px;
 }
 
 .error-msg {
@@ -1375,6 +1377,60 @@ textarea:focus-visible {
   color: var(--text-secondary);
 }
 
+/* Simplified Settings */
+.settings-list {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  margin-bottom: 16px;
+}
+
+.settings-link {
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  width: 100%;
+  padding: 16px;
+  background: var(--surface-raised);
+  border: 1px solid rgba(148, 163, 184, 0.12);
+  border-radius: 16px;
+  cursor: pointer;
+  font-size: 0.95rem;
+  color: var(--text-primary);
+  transition: transform var(--transition), box-shadow var(--transition);
+  text-align: left;
+}
+
+.settings-link:hover:not(:disabled) {
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
+}
+
+.settings-link:active:not(:disabled) {
+  transform: translateY(0);
+}
+
+.settings-link:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
+.settings-link .chevron {
+  margin-left: auto;
+  color: var(--text-tertiary);
+}
+
+.settings-link--danger {
+  color: var(--expense);
+}
+
+.settings-footer {
+  text-align: center;
+  padding: 20px;
+  color: var(--text-tertiary);
+  font-size: 0.85rem;
+}
+
 .about-info p:first-child {
   color: var(--text);
   font-weight: 700;

server.js

@@ -384,6 +384,20 @@ app.delete('/api/records/:id', authenticate, (req, res) => {
   res.json({ message: '删除成功' });
 });
 
+// 批量删除指定分类的记录
+app.delete('/api/records/by-category/:category', authenticate, (req, res) => {
+  const { category } = req.params;
+
+  if (!category || typeof category !== 'string' || !category.trim()) {
+    return res.status(400).json({ error: '分类不能为空' });
+  }
+
+  const stmt = db.prepare('DELETE FROM records WHERE category = ? AND user_id = ?');
+  const result = stmt.run(category.trim(), req.userId);
+
+  res.json({ message: `已删除 ${result.changes} 条记录` });
+});
+
 // 获取月度统计
 app.get('/api/stats', authenticate, (req, res) => {
   const { month } = req.query;
@@ -630,7 +644,6 @@ app.get('/api/categories', authenticate, (req, res) => {
       { name: '娱乐', icon: '🎮' },
       { name: '房租', icon: '🏠' },
       { name: '房贷', icon: '🏦' },
-      { name: '亲情卡', icon: '💳' },
       { name: '水电', icon: '💧' },
       { name: '衣服', icon: '👔' },
       { name: '通讯', icon: '📱' },