#top {
  background-image: url(../images/1st_top/common/sora_bg.png);
  background-repeat: repeat-y;
  background-size: 100%;
  overflow: hidden;
}

#top .main_area {
  background: none;
  position: relative;
  z-index: 100;
}

#top .wrapper {
  background: none;
}

#top #pc_footer {
  background-image: url(../img/bg_repeat.png);
  background-size: 28px;
  position: relative;
  z-index: 100;
}

#top #pc_footer::before {
  z-index: 0;
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(47, 79, 79, 0.5);
}

#top .header_bottom {
  position: relative;
  z-index: 50;
}

#top .footer_map {
  position: relative;
}

#top .footer_bottom {
  position: relative;
}

#top #pc_header_nav {
  z-index: 200;
}

#top #left_area {
  z-index: 100;
}

#top #right_area {
  z-index: 100;
}

#pc_header_nav {
  z-index: 200;
}

.top-main_img {
  background: url(../images/1st_top/common/sora_bg.png) repeat-y top center;
  background-size: 100%;
  position: relative;
  margin-top: 60px;
  padding-top: calc(800 / 1600 * 100%);
}

@media screen and (max-width: 750px) {
  .top-main_img {
    margin-top: 0;
    padding-top: 100%;
  }
}

.top-main_img .sp-menu {
  display: none;
}

@media screen and (max-width: 750px) {
  .top-main_img .sp-menu {
    display: block;
    z-index: 50;
  }
}

.top-main_img .top-main_img_banner__area {
  display: none;
}

@media screen and (max-width: 750px) {
  .top-main_img .top-main_img_banner__area {
    display: block;
    position: relative;
    z-index: 50;
  }
}

.top-main_img .top-main_logo {
  position: absolute;
  top: 5%;
  left: 12%;
  width: 15%;
}

@media screen and (max-width: 750px) {
  .top-main_img .top-main_logo {
    top: 2%;
    left: 2%;
    width: 25%;
  }
}

.js-fade-in {
  display: none;
}

.top-main_img_inner {
  background: url(../images/1st_top/pc/main_image_pc.png) no-repeat top center;
  background-size: cover;
  padding-top: calc(800 / 1600 * 100%);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}

@media screen and (max-width: 750px) {
  .top-main_img_inner {
    background: url(../images/1st_top/sp/main_image_sp.png) no-repeat top center;
    background-size: cover;
    padding-top: 100%;
  }
}

.first_anniversary__btn {
  width: 20%;
  position: absolute;
  right: 12%;
  bottom: -3%;
  padding-top: calc(254 / 368 * 20%);
  z-index: 50;
}

@media screen and (max-width: 750px) {
  .first_anniversary__btn {
    width: 30%;
    bottom: 16%;
    right: 0;
    padding-top: calc(156 / 244 * 30%);
    z-index: 100;
  }
}

.first_anniversary__btn a {
  display: block;
}

.first_anniversary__btn img {
  vertical-align: bottom;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}

.first_anniversary__btn::before {
  content: "";
  background: url(../images/2nd/pc/2ndanniva_btn_outline_pc.png) no-repeat top center;
  background-size: cover;
  height: 100%;
  width: 100%;
  position: absolute;
  top: -3px;
  left: 0;
  -webkit-animation: blink 1s ease-in-out infinite alternate;
  animation: blink 1s ease-in-out infinite alternate;
}

@media screen and (max-width: 750px) {
  .first_anniversary__btn::before {
    background: url(../images/2nd/sp/2ndanniva_btn_outline_sp.png) no-repeat top right;
    background-size: cover;
    top: -1px;
    right: 0;
  }
}

.first_anniversary__btn.fixed {
  position: fixed;
  top: 0;
  height: 0;
  z-index: 400;
}

.bottom_image__area {
  display: none;
}

@media screen and (max-width: 750px) {
  .bottom_image__area {
    width: 100%;
  }
  .bottom_image__area img {
    vertical-align: bottom;
  }
  .bottom_image__area.fixed {
    display: block;
    -webkit-transition: .3s;
    transition: .3s;
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: 300;
  }
}

.pc_bottom_image {
  background: url(../images/1st_top/common/rabbit_bg.png) no-repeat bottom center;
  background-size: 100%;
  width: 100%;
  padding-top: calc(584 / 1600 * 100%);
}

@media screen and (max-width: 750px) {
  .pc_bottom_image {
    display: none;
  }
}

@-webkit-keyframes blink {
  0% {
    opacity: .4;
  }
  100% {
    opacity: 1;
  }
}

@keyframes blink {
  0% {
    opacity: .4;
  }
  100% {
    opacity: 1;
  }
}