Is the word estilos the same in Brazilian and European Portuguese?

Yes

The word "estilos" is identical in meaning, spelling, and grammar in both Brazilian and Continental Portuguese. The only difference lies in pronunciation:

• Brazilian Portuguese: The initial "e" is clearly pronounced (an open or mid vowel), and the "s" is typically pronounced as a soft "s" (as in "sun"), though in Rio de Janeiro, it may sound like "sh".
• Continental Portuguese: The initial "e" is often reduced or almost silent (a "hidden" vowel), and the "s" before the consonant "t" is almost always pronounced as "sh" ([ʃ]).

Brazilian Portuguese Examples

1. Eu gosto de vários estilos de música. (I like various styles of music.)
2. Ela tem muitos estilos de roupa. (She has many clothing styles.)
3. Existem diferentes estilos de arquitetura aqui. (There are different architectural styles here.)
4. Ele gosta de experimentar estilos novos. (He likes to experiment with new styles.)
5. O restaurante oferece diferentes estilos de pratos. (The restaurant offers different styles of dishes.)

Continental Portuguese Examples

1. Eu gosto de vários estilos de música. (I like various styles of music.)
2. Ela tem vários estilos de vestuário. (She has various clothing styles.)
3. Existem diferentes estilos de arquitetura por cá. (There are different architectural styles around here.)
4. Ele gosta de experimentar novos estilos. (He likes to experiment with new styles.)
5. O restaurante oferece diferentes tipos de pratos. (The restaurant offers different types of dishes.)