如何设置导出到excel时pandas datetime列的样式？

import pandas as pd
from openpyxl import Workbook
from openpyxl.styles import NamedStyle

data = {'Date': ['2022-01-01', '2022-01-02', '2022-01-03'],
        'Value': [10, 20, 30]}
df = pd.DataFrame(data)
df['Date'] = pd.to_datetime(df['Date'])  # 转换为datetime类型

def set_datetime_style(ws):
    date_format = NamedStyle(name='date_format')
    date_format.number_format = 'YYYY-MM-DD HH:MM:SS'
    for cell in ws['A']:
        cell.style = date_format

filename = 'output.xlsx'
with pd.ExcelWriter(filename, engine='openpyxl') as writer:
    df.to_excel(writer, index=False, sheet_name='Sheet1')
    workbook = writer.book
    worksheet = writer.sheets['Sheet1']
    set_datetime_style(worksheet)
    workbook.save()