@media screen and (max-width: 750px) {
  .main {
    background-image: url(../../../images/main_bg_sp.jpg);
    background-repeat: no-repeat;
    background-size: 100%;
    background-position: 50% 50%;
    padding: 2rem 0 35.5rem;
  }
}
@media screen and (max-width: 750px) {
  .main-tit {
    font-size: 2.7rem;
  }
}
@media screen and (max-width: 750px) {
  .main-img img {
    max-width: 21rem;
  }
}

@media screen and (max-width: 750px) {
  .concept-img_sign {
    top: auto;
    bottom: 3rem;
    right: 2rem;
    max-width: 33.5rem;
  }
}

@media screen and (max-width: 750px) {
  .history {
    padding: 2rem 5.25rem 5.5rem;
  }
}
@media screen and (max-width: 750px) {
  .history-detail {
    padding: 3rem 0rem 0;
  }
}
@media screen and (max-width: 750px) {
  .history-tit_sub {
    font-size: 2.5rem;
  }
}
@media screen and (max-width: 750px) {
  .history-tit_sub p {
    font-size: 5.2rem;
  }
}
@media screen and (max-width: 750px) {
  .history-btn_slide {
    top: 12rem;
  }
}
@media screen and (max-width: 750px) {
  .history-btn_slide.prev {
    left: -3.5rem;
  }
}
@media screen and (max-width: 750px) {
  .history-btn_slide.next {
    right: -3.5rem;
  }
}

.scroll {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100%;
  z-index: 10;
}
.scroll-btn {
  position: absolute;
  bottom: 5.3rem;
  right: -2.4rem;
  -webkit-transform: rotate(90deg);
          transform: rotate(90deg);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-column-gap: 1rem;
     -moz-column-gap: 1rem;
          column-gap: 1rem;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.scroll-txt {
  font-family: alternate-gothic-atf, sans-serif;
  font-weight: 500;
  font-style: normal;
  color: #fff;
  font-size: 1.2rem;
}
.scroll-line {
  position: relative;
  background-color: #bac722;
  width: 5.5rem;
  height: 0.15rem;
  overflow: hidden;
}
.scroll-line::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  -webkit-transform: translateX(-100%);
          transform: translateX(-100%);
  background-color: #fff;
  width: 100%;
  height: 100%;
  -webkit-animation: pathmove 3s ease infinite;
          animation: pathmove 3s ease infinite;
}

@-webkit-keyframes pathmove {
  0% {
    -webkit-transform: translateX(-100%);
            transform: translateX(-100%);
    background: #fff;
    opacity: 1;
  }
  90% {
    -webkit-transform: translateX(100%);
            transform: translateX(100%);
    background: #d2d191;
    opacity: 1;
  }
  95% {
    -webkit-transform: translateX(100%);
            transform: translateX(100%);
    background: #fff;
    opacity: 0;
  }
  100% {
    -webkit-transform: translateX(-100%);
            transform: translateX(-100%);
    background: #fff;
    opacity: 0;
  }
}

@keyframes pathmove {
  0% {
    -webkit-transform: translateX(-100%);
            transform: translateX(-100%);
    background: #fff;
    opacity: 1;
  }
  90% {
    -webkit-transform: translateX(100%);
            transform: translateX(100%);
    background: #d2d191;
    opacity: 1;
  }
  95% {
    -webkit-transform: translateX(100%);
            transform: translateX(100%);
    background: #fff;
    opacity: 0;
  }
  100% {
    -webkit-transform: translateX(-100%);
            transform: translateX(-100%);
    background: #fff;
    opacity: 0;
  }
}