@media screen and (max-width: 428px) {
  .c-section {
    margin: 80px 0 140px 0;
  }

  .c-section--margin-bottom-none {
    margin-bottom: 0;
  }
}

@media screen and (min-width: 429px) {
  .c-section {
    margin: 90px 0 150px 0;
  }

  .c-section--margin-bottom-none {
    margin-bottom: 0;
  }
}