如何调整坐标轴标签与坐标轴间的距离？

字体稍微大一些后，坐标轴标签与坐标数字就重叠了，如何调整坐标轴标签与坐标轴间的距离？
\[Delta] = 0.5; \[Eta] = 0.3;
w = ((1 + \[Beta] + \[Xi]) (-2 \[Eta] (1 + \[Eta]) (2 + 3 \[Beta] +
3 \[Xi]) + \[Delta] (\[Beta] (-4 -
2 \[Eta] + \[Eta]^2) - \[Eta]^2 \[Xi] - 4 (1 + \[Xi]) -
2 \[Eta] (2 + \[Xi]))))/((1 + \[Eta]) (\[Beta]^2 (-16 -
32 \[Eta] + \[Eta]^2) + \[Eta]^2 \[Xi]^2 -
8 (1 + \[Xi])^2 - 16 \[Eta] (1 + \[Xi])^2 -
2 \[Beta] (\[Eta]^2 \[Xi] + 12 (1 + \[Xi]) +
24 \[Eta] (1 + \[Xi]))));
t1 = Plot3D[w, {\[Beta], 0, 1}, {\[Xi], 0, 2}, PlotStyle -> {Blue},
PlotLegends -> {Style["w", Italic,
FontFamily -> "Times New Roman"]}, PerformanceGoal -> "Quality",
BoxStyle -> Directive[AbsoluteDashing[{}]],
LabelStyle ->
Directive[Black, 20, FontFamily -> "Times New Roman"],
AxesLabel -> {Style[\[Beta], Bold, Black],
Style[\[Xi], Bold, Black]}];
t1