/* ─────────── MV セクションの最低限スタイル ─────────── */
main {
  display: block;
}
.section-head .ttl-sm {
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}
.section-head .ttl {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.38;
  color: #006ad5;
  letter-spacing: 0;
  position: relative;
}
.section-head.white .ttl-sm {
  color: #fff;
}
.section-head.white .ttl {
  color: #fff;
}
.section-head.center {
  text-align: center;
}
.intro {
  font-size: 1.4rem;
  line-height: 1.875;
}
.intro.white {
  color: #fff;
}
.mv-section {
  position: relative;
  width: 100%;
  aspect-ratio: 880 / 1198;
  overflow: hidden;
}
.mv-section .mv-img {
  position: relative;
  width: 100%;
  height: 100%;
}
.mv-section .mv-img img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.mv-section .content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: #fff;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.mv-section .content .ttl {
  font-size: 286%;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.35;
  margin-bottom: 2.7rem;
  text-shadow: 0px 0px 10px rgba(0, 0, 0, 0.66);
}
.mv-section .content .txt {
  font-size: 200%;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.5;
  text-shadow: 0px 0px 10px rgba(0, 0, 0, 0.66);
}
@media screen and (min-width: 768px) {
  .section-head .ttl-sm {
    font-size: 1.4rem;
  }
  .section-head .ttl {
    font-size: 3.6rem;
  }
  .intro {
    font-size: 1.6rem;
    max-width: 930px;
    margin: 0 auto;
  }
  .mv-section {
    aspect-ratio: 2800 / 1152;
  }
  .mv-section .content .ttl {
    font-size: 5rem;
    margin-bottom: 2.5rem;
    line-height: 1.4;
    letter-spacing: 0.05em;
  }
  .mv-section .content .txt {
    font-size: 2rem;
  }
}
/* ─────────── about セクション ─────────── */
.webp .about-section::before {
  background: url(../img/top/about-bk-sp.webp);
  background-blend-mode: multiply;
  background-size: cover;
  background-repeat: no-repeat;
  background-position-y: bottom;
  background-position-x: center;
  opacity: 0.35;
}
.no-webp .about-section::before {
  background: url(../img/top/about-bk-sp.jpg);
  background-blend-mode: multiply;
  background-size: cover;
  background-repeat: no-repeat;
  background-position-y: bottom;
  background-position-x: center;
}
.about-section {
  background: #f2fafd;
  padding-top: 6rem;
  padding-bottom: 7rem;
  position: relative;
  z-index: 0;
  overflow: hidden;
}
.about-section::before {
  content: "";
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40%;
  pointer-events: none;
  z-index: -1;
}
.about-above .box:nth-child(1) {
  margin-bottom: 1rem;
}
.about-section .section-head {
  margin-bottom: 3.6rem;
}
.about-section .section-head .ttl {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.about-section img {
  display: inline-block;
  width: 100%;
  height: auto;
}
.about-list {
  list-style: none;
  margin-bottom: 3.5rem;
}
.about-item {
  font-size: 1.3rem;
  line-height: 1.6;
}
.about-item:not(:last-child) {
  margin-bottom: 1rem;
  padding-bottom: 1.05rem;
  border-bottom: 1px solid #707070;
}
.about-item img {
  width: 20px;
  margin-right: 0.5rem;
  vertical-align: text-bottom;
}
.about-bottom .txt {
  font-size: 1.2rem;
  line-height: 1.875;
}
@media screen and (min-width: 768px) {
  /* About セクション */
  .about-section {
    padding-top: 10rem;
    padding-bottom: 10rem;
  }
  .about-section::before {
    height: 100%;
    top: 0;
  }
  .webp .about-section::before {
    background: url(../img/top/about-bk.webp);
    background-blend-mode: multiply;
    background-size: cover;
    background-repeat: no-repeat;
    background-position-y: bottom;
    background-position-x: center;
  }
  .no-webp .about-section::before {
    background: url(../img/top/about-bk.jpg);
    background-blend-mode: multiply;
    background-size: cover;
    background-repeat: no-repeat;
    background-position-y: bottom;
    background-position-x: center;
  }
  .about-section .section-head {
    margin-bottom: 6rem;
  }
  .about-above {
    display: flex;
    flex-direction: row-reverse;
    justify-content: space-between;
    margin-bottom: 6.4rem;
  }
  .about-above .box:nth-child(1) {
    max-width: 350px;
    width: 40%;
    margin-bottom: 0;
  }
  .about-above .box:nth-child(2) {
    width: calc(100% - 350px - 115px);
  }
  .about-list {
    margin-bottom: 0;
  }
  .about-item {
    font-size: 2rem;
  }
  .about-item img {
    width: 25px;
  }
  .about-bottom .txt {
    font-size: 1.6rem;
  }
}