.bobo-service1 {
  padding: clamp(30px, calc( (70 / 1920) * 100vw ), 70px) 0 0;
  background: #000;
  text-align: center;
}

.bobo-service1 h3 {
  font-size: clamp(24px, 2.1vw, 40px);
  line-height: 1;
  font-weight: 700;
  color: #fff;
}