@media print, all and (min-width: 751px) {
  .is-hidden_pc {
    display: none;
  }
}
@media print, all and (max-width: 750px) {
  .is-hidden_sp {
    display: none;
  }
}
#research_system {
  background-image: url(../images/research_system/image01.jpg);
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: cover;
  position: relative;
  padding-bottom: 170px;
}
#research_system::before {
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 120px;
  background: linear-gradient(180deg, #fff 0%, rgba(255, 255, 255, 0) 100%);
}
#research_system .crem_tonohane {
  border: solid 1px #223761;
  padding: 20px 25px;
  display: flex;
  gap: 80px;
  align-items: center;
  margin-top: 85px;
}
#research_system .crem_tonohane .image {
  width: 310px;
}
#research_system .crem_tonohane .text {
  flex: 1;
}
#research_system .crem_tonohane .text a {
  text-decoration: none;
  color: #223761;
  font-weight: bold;
}

#rinsho_research .rinsho-list {
  display: flex;
  flex-wrap: wrap;
  gap: 65px 117px;
}
#rinsho_research .rinsho-list li {
  width: 480px;
}
#rinsho_research .rinsho-list li .banner-box {
  display: flex;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  text-decoration: none;
  transition: 0.2s;
}
#rinsho_research .rinsho-list li .banner-box:hover {
  opacity: 0.7;
  transition: 0.2s;
}
#rinsho_research .rinsho-list li .text {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5px 23px;
}
#rinsho_research .rinsho-list li .text .en,
#rinsho_research .rinsho-list li .text .ja {
  position: relative;
  z-index: 1;
}
#rinsho_research .rinsho-list li .text .en {
  font-family: "Cinzel", serif;
  line-height: 1;
  margin-bottom: 10px;
}
#rinsho_research .rinsho-list li .text .ja {
  font-size: 125%;
  font-weight: bold;
  line-height: 1.3;
}
#rinsho_research .rinsho-list li .text::after {
  position: absolute;
  content: "";
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.5);
}
#rinsho_research .rinsho-list li .image {
  width: 100px;
  line-height: 1;
}
#rinsho_research .rinsho-list li .parallax-box {
  clip-path: inset(0);
  width: 100%;
  height: 120px;
  padding: 16px;
  box-sizing: border-box;
  color: #fff;
}
#rinsho_research .rinsho-list li .parallax-box::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  z-index: -10;
  width: 100%;
  height: 100%;
  background-size: cover;
}
#rinsho_research .rinsho-list li.cornea .parallax-box::before {
  background-image: url(../images/research_system/image-rinsho_bg01.jpg);
}
#rinsho_research .rinsho-list li.retina .parallax-box::before {
  background-image: url(../images/research_system/image-rinsho_bg02.jpg);
}
#rinsho_research .rinsho-list li.cardiovascular .parallax-box::before {
  background-image: url(../images/research_system/image-rinsho_bg03.jpg);
}
#rinsho_research .rinsho-list li.reproduction .parallax-box::before {
  background-image: url(../images/research_system/image-rinsho_bg04.jpg);
}

@media all and (min-width: 751px) {
  body.research-system #title {
    background-image: url(../images/research_system/title-bg.jpg);
  }
  /* INDEX */
}
@media only screen and (max-width: 750px) {
  body.research-system #title {
    background-image: url(../images/research_system/title-bg.jpg);
  }
  /* INDEX */
  #research_system {
    padding-bottom: 100px;
    background-image: url(../images/research_system/image01_sp.jpg);
    background-position: right bottom;
    background-size: 100%;
  }
  #research_system .crem_tonohane {
    flex-direction: column;
    gap: 20px;
    margin-top: 35px;
    padding: 20px 10px;
  }
  #research_system .crem_tonohane .image {
    width: 310px;
  }
  #research_system .crem_tonohane .text {
    flex: 1;
  }
  #research_system .crem_tonohane .text a {
    text-decoration: none;
    color: #223761;
    font-weight: bold;
  }
  #rinsho_research .rinsho-list {
    display: flex;
    flex-wrap: wrap;
    gap: 35px;
  }
  #rinsho_research .rinsho-list li {
    width: 100%;
  }
  #rinsho_research .rinsho-list li .text {
    padding: 5px 10px;
  }
  #rinsho_research .rinsho-list li .parallax-box::before {
    background-size: contain;
    max-width: 480px;
  }
}