字号比例

Aa

Minor Second

1.067

Very tight — dense data UIs

Aa

Major Second

1.125

Tight — SaaS dashboards (Vercel/Geist)

Aa

Minor Third

1.2

Compact — Tailwind default

Aa

Major Third

1.25

Standard — most products (Stripe/Material)

Aa

Perfect Fourth

1.333

Generous — editorial, marketing

Aa

Augmented Fourth

1.414

Wide — expressive, display-heavy

Aa

Perfect Fifth

1.5

Dramatic — landing & brand sites

Aa

Golden Ratio

1.618

Maximum — display only