/* ファーストビュー */
.section_firstview {
  width: 100%;
  height: 464px;
  background-image: url('../images/blue-suite-top.png');
  background-size: cover;
  display: flex;
  justify-content: center;
}

/* スマホ用背景 */
@media screen and (max-width: 767px) {
  .section_firstview {
    background-image: url('../images/メインビジュアルSP_mainpage.webp');
    background-repeat: no-repeat;
    background-position: center center;
    height: 700px;
  }
}