Plotly:如何使子图的x轴和y轴标题更大？

import plotly.graph_objects as go
from plotly.subplots import make_subplots

# 创建一个2x2的子图
fig = make_subplots(rows=2, cols=2)

# 添加一些示例数据
fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 5, 6]), row=1, col=1)
fig.add_trace(go.Scatter(x=[1, 2, 3], y=[6, 5, 4]), row=1, col=2)
fig.add_trace(go.Scatter(x=[1, 2, 3], y=[4, 6, 5]), row=2, col=1)
fig.add_trace(go.Scatter(x=[1, 2, 3], y=[5, 4, 6]), row=2, col=2)

# 设置全局标题字体大小
fig.update_layout(
    title_font=dict(size=24),
    tick_font=dict(size=18)
)

# 设置每个子图的x轴和y轴标题
fig.update_xaxes(title_text="X Axis Title", row=1, col=1, title_font=dict(size=20))
fig.update_yaxes(title_text="Y Axis Title", row=1, col=1, title_font=dict(size=20))

fig.update_xaxes(title_text="X Axis Title", row=1, col=2, title_font=dict(size=20))
fig.update_yaxes(title_text="Y Axis Title", row=1, col=2, title_font=dict(size=20))

fig.update_xaxes(title_text="X Axis Title", row=2, col=1, title_font=dict(size=20))
fig.update_yaxes(title_text="Y Axis Title", row=2, col=1, title_font=dict(size=20))

fig.update_xaxes(title_text="X Axis Title", row=2, col=2, title_font=dict(size=20))
fig.update_yaxes(title_text="Y Axis Title", row=2, col=2, title_font=dict(size=20))

# 显示图形
fig.show()