.concept .c-mv::before {
  background-image: url(../../img/concept/bg_mv_concept_pc.webp);
}
@media screen and (max-width: 767px) {
  .concept .c-mv::before {
    background-image: url(../../img/concept/bg_mv_concept_sp.webp);
  }
}

.c-ttl_base_jp span {
  font-size: 28px;
  font-size: 2.8rem;
}
@media screen and (max-width: 767px) {
  .c-ttl_base_jp span {
    font-size: 15px;
    font-size: 1.5rem;
  }
}

.c-ttl_base_en span {
  font-size: 1.1em;
  font-family: "Zen Old Mincho", "YuMincho", "Hiragino Mincho ProN", "Yu Mincho", "MS PMincho", serif;
  font-weight: 200;
}