/* media query */
.introMain-block {
  color: #6D4828;
}

.introConcept {
  background: #6D4828;
}

.introDetail {
  background: #6D4828;
}

.introSection.--second .introMain-block {
  color: #98413D;
}
.introSection.--second .introConcept {
  background: #98413D;
}
.introSection.--second .introDetail {
  background: #98413D;
}