:root {
  --scale: 75%;
}
@media (min-width: 2560px) {
  :root {
    --scale: 85%;
  }
}
@media screen and (max-width: 768px) {
  :root {
    --scale: 75%;
  }
}

#fixed_bg_frame {
  display: block;
  position: fixed;
  top: 0;
  height: 100vh;
  width: 100%;
  /* background-color: #eceff1; */
  background-color: rgba(0, 0, 0, 0.1);
  z-index: -1;
}
#video_wrapper {
  position: relative;
  height: 100vh;
  width: 100%;
  /* overflow: hidden; */
}
#video_wrapper > video {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  min-width: 100%;
  min-height: 100%;
  opacity: 0;
}
#fixed_bg_frame > #fv_bg,
#column_bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  min-width: 100%;
  max-width: none;
  min-height: 100%;
  opacity: 0;
}

#home .about_area {
  opacity: 0;
  background: none;
}
#home .regenerative-medicine_area {
  background: none;
}
#home .sevice_area section {
  background: none;
}
#home .colum_area {
  background: none;
}

#home header {
  position: fixed;
}
#home .header_box {
  /* background: rgba(0,0,0,0.3); */
}
#home .header_box .nav_ul {
  /* visibility: hidden; */
}

#home .fv_area {
  /* display: flex; */
  /* justify-content: flex-start; */
  /* align-items: center; */
  /* flex-direction: column; */
  height: 300vh;
  width: 100%;
  overflow: visible;
}

#home .fv_area .fv_title {
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
#home .fv_area .fv_title #fv_logo {
  position: absolute;
  top: 17%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  /* min-width: 100%; */
  max-width: 50%;
}
#home .fv_area .fv_title h1 {
  top: 17%;
  font-size: clamp(20px, 2.5vw, 60px);
}
#home .fv_area #fv_logo,
#fv_txt1 > span,
#fv_txt2 {
  opacity: 0;
  text-orientation: upright;
}

#home .about_area {
  position: absolute;
  width: 100%;
  height: 100vh;
  top: 0vh;
}
#home .about_area .inner_wrap {
  position: absolute;
  top: 50vh;
  left: 50%;
  width: 90%;
  height: 90%;
  /* max-width: 1920px; */
  /* max-height: 1080px; */
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
}
#home .about_area .inner_wrap .con_wrap {
  display: flex;
  width: 100%;
  height: 100%;
  scale: var(--scale);
}
#home .about_area .inner_wrap .con_box {
  margin: auto;
  margin-right: 5em;
  height: 100%;
}

#home .about_area .main_tl_box .main_tl span {
  border-left: none;
}
#home .about_area .main_tl_box .main_tl {
  height: auto;
}
/* #home .about_area .txt_box p { */
/*     line-height: 6.5rem; */
/* } */

#home .regenerative-medicine_area {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  opacity: 0;
}
#home .regenerative-medicine_area .inner_wrap {
  position: absolute;
  top: 50vh;
  left: 50%;
  width: 90%;
  height: 90%;
  max-width: 1920px;
  max-height: 1080px;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  padding: 0;
}
#home .regenerative-medicine_area .inner_wrap .con_box {
  display: flex;
  width: 100%;
  height: 100%;
  margin: auto;
  align-items: flex-start;
  scale: var(--scale);
}
#home .regenerative-medicine_area .inner_wrap .con_box .main_tl_box {
  /* margin-right: 0; */
  margin-right: 20px;
}

#home .regenerative-medicine_area .inner_wrap .con_box .txt_box {
  margin-left: 50px;
  min-width: 450px;
}
#home .regenerative-medicine_area .inner_wrap .con_box .photo {
  position: default;
}

#home .regenerative-medicine_area .inner_wrap .con_box .txt_box div {
  display: inline-block;
}

#home .regenerative-medicine_area .main_tl_box .main_tl span {
  display: inline-block;
  border-left: none;
}

#home .vertical-slider__wrap .vertical-area {
  height: 100vh;
}

#home .vertical-area .img-wrap {
  width: 100%;
  height: 100%;
  scale: var(--scale);
}

#home .sevice_area .aging_con_box .main_tl_box .main_tl {
  border-bottom: none;
  width: auto;
  /* underline */
}
#home .sevice_area .sevice_box .main_tl_box .main_tl {
  border-bottom: none;
  width: auto; /* underline */
}
#home .sevice_area .sevice_box .main_tl_box .main_tl span {
  border-bottom: none;
}
#home .sevice_area .con_box .main_tl_box .main_tl {
  border-bottom: none;
}
#home .colum_area .inner_wrap {
  width: 100%;
}
#home .colum_area .base_wrap {
  scale: var(--scale);
}

.underline {
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  border-bottom: none;
  background-color: #c7b192;
}
.leftline {
  display: block;
  position: default;
  bottom: 0;
  left: 0;
  width: 2px;
  border-left: none;
  background-color: #c7b192;
}
.spacer {
  height: 50vh;
}

@media screen and (max-width: 768px) {
  #video_wrapper > video {
    width: 100vw;
  }
  /* #home .fv_area {
    height: 200vh;
  } */
  #home .fv_area .fv_title #fv_logo {
    /* top: 50%; */
    min-width: 80%;
  }
  #home .fv_area .fv_title h1 {
    /* top: 50%; */
  }
  /* #home .about_area {
    top: 50%;
    opacity: 1;
  } */
  #home .about_area .inner_wrap {
    /* top: 75%; */
    padding: 0;
  }
  #home .about_area .inner_wrap .con_box {
    margin-right: 0;
    height: 85%;
  }
  #home .about_area .main_tl_box .main_tl span {
    border-bottom: none;
  }
  #home .regenerative-medicine_area {
    /* height: 100vh;
    opacity: 1; */
  }
  #home .regenerative-medicine_area .inner_wrap {
    margin: none;
  }
  #home .regenerative-medicine_area .inner_wrap .con_box {
    /* flex-direction: column; */
    /* align-items: center; */
    height: auto;
  }
  #home .regenerative-medicine_area .inner_wrap .con_box .txt_box {
    margin-left: 0;
    min-width: auto;
  }

  #home .regenerative-medicine_area .con_box .photo {
    left: unset;
    right: unset;
  }
  #home .regenerative-medicine_area .con_box img {
    position: absolute;
    top: 0%;
    left: 50%;
    transform: translateX(-50%);
  }
  #home .regenerative-medicine_area .main_tl_box .main_tl span {
    border-bottom: none;
    margin-left: 0;
  }
  #home .vertical-slider__wrap {
    flex-direction: column;
    height: auto;
  }
  #home .vertical-slider__wrap .vertical-area {
    height: auto;
    /* margin-bottom: 15vh; */
  }
  #home .vertical-area .img-wrap .sevice_box {
    height: 100%;
  }
  #home .vertical-area .img-wrap .sevice_box .sub_photo {
    position: relative;
    /* width: 50vw; */
  }
  #home .vertical-slider__wrap #tail_space {
    height: 15vh;
  }
  #home .colum_area .base_wrap {
    scale: none;
  }
  .leftline {
    display: block;
    bottom: 0;
    left: 0;
    width: 0;
    max-width: auto;
    height: 2px;
    border-bottom: none;
    background-color: #c7b192;
  }
  .spacer {
    height: 30vh;
  }
}
@media screen and (max-width: 425px) {
  #video_wrapper > video {
    width: auto;
    height: 100vh;
  }
}