#page_about .thoughts {
  text-align: center;
  background: #F4F3F0;
  padding: 0 0 120rem;
}
#page_about .thoughts h2 {
  display: inline-block;
  align-items: center;
  margin: 100rem 0 60rem;
  letter-spacing: 5rem;
}
#page_about .thoughts .text_area {
  text-align: left;
}
#page_about .thoughts .text_area .text_wrap {
  position: relative;
  margin: 0 0 50rem;
}
#page_about .thoughts .text_area .text_wrap .text_intro {
  position: relative;
  background: #fff;
  padding: 30rem;
  width: 420rem;
  margin: -190rem 0 0 auto;
  z-index: 1;
}
#page_about .thoughts .text_area .text_wrap .text_intro span {
  display: block;
  margin: 0 0 20rem;
  padding: 0 0 20rem;
  border-bottom: 1px solid #C2C2C2;
}
#page_about .thoughts .text_area .text_wrap .text_intro span small {
  display: block;
  margin: 0 0 10rem;
  font-size: 12rem;
}
#page_about .thoughts .text_area .text_wrap .text_intro span ruby {
  font-size: 22rem;
  margin: 0 0 0 20rem;
}
#page_about .thoughts .text_area .text_wrap .text_intro span ruby rt {
  margin: 0 0 2rem;
}
#page_about .thoughts .text_area .text_read {
  margin: 0 70rem;
  line-height: 2.2;
}
#page_about .lesson {
  background: #fff url(../../img/about/ph_about3.jpg) top center;
  text-align: center;
  padding: 150rem 0 120rem;
  position: relative;
}
#page_about .lesson:before {
  content: "";
  position: absolute;
  top: 180rem;
  right: -880rem;
  left: 0;
  background: url(../../img/ico_content.svg) no-repeat top center/contain;
  width: 440rem;
  height: 440rem;
  margin: auto;
}
#page_about .lesson h2 {
  display: inline-block;
  letter-spacing: 5rem;
}
#page_about .lesson p {
  margin: 60rem auto 0;
  padding: 0 70rem;
  line-height: 2.2;
  text-align: left;
  position: relative;
}
#page_about .history {
  background: url(../../img/ph_about6.jpg) no-repeat top center;
  color: #fff;
  padding: 100rem 0 110rem;
  position: relative;
}
#page_about .history:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: #000;
  opacity: 0.5;
}
#page_about .history .inner {
  display: flex;
  flex-flow: wrap;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}
#page_about .history .inner h2 {
  font-size: 32rem;
  margin: 50rem 0 0 0;
  letter-spacing: 5rem;
}
#page_about .history .inner div {
  width: 850rem;
  margin: 0 0 70rem 80rem;
  line-height: 2.2;
}
#page_about .history .inner div ul {
  display: flex;
  margin: 40rem 0 0;
}
#page_about .history .inner div ul li {
  margin: 0 30rem 0 0;
}
#page_about .history .inner dl {
  width: 850rem;
  margin: 0 0 0 80rem;
  line-height: 2.2;
  display: flex;
  flex-flow: wrap;
  justify-content: space-between;
  gap: 20rem 0;
}
#page_about .history .inner dl dt {
  width: 22%;
}
#page_about .history .inner dl dd {
  width: 75%;
}

@media screen and (max-width: 680px) {
  #page_about .common_lead {
    padding: 60rem 0;
  }
  #page_about .common_tit {
    writing-mode: horizontal-tb;
    text-align: center;
    margin: 0 0 20rem;
    letter-spacing: 2rem;
  }
  #page_about .common_tit:before {
    position: static;
    transform: none;
    margin: auto;
  }
  #page_about .common_lead .text_wrap {
    writing-mode: horizontal-tb;
    width: 335rem;
  }
  #page_about .common_lead .text {
    text-align: center;
  }
  #page_about .thoughts {
    padding: 0 0 60rem;
  }
  #page_about .thoughts h2 {
    margin: 60rem 0 40rem;
    letter-spacing: 2rem;
  }
  #page_about .thoughts .text_area .text_wrap .text_intro {
    width: auto;
    margin: 0;
    padding: 20rem;
  }
  #page_about .thoughts .text_area .text_read {
    margin: 0;
    line-height: 1.8;
  }
  #page_about .lesson {
    padding: 60rem 0;
    overflow: hidden;
  }
  #page_about .lesson .text_read {
    padding: 0;
    margin: auto;
    line-height: 1.8;
  }
  #page_about .lesson h2 {
    letter-spacing: 2rem;
    margin: 0 0 40rem;
  }
  #page_about .history {
    background: url(../../img/ph_about6.jpg) no-repeat top center/cover;
    position: relative;
    padding: 60rem 0;
  }
  #page_about .history .inner {
    display: block;
  }
  #page_about .history .inner h2 {
    margin: 0 0 20rem;
    letter-spacing: 2rem;
  }
  #page_about .history .inner div {
    width: auto;
    margin: 0 0 60rem;
    line-height: 1.8;
  }
  #page_about .history .inner div ul {
    justify-content: space-between;
  }
  #page_about .history .inner div ul li {
    margin: 0;
    width: 48%;
  }
  #page_about .history .inner dl {
    width: auto;
    margin: auto;
    display: block;
    line-height: 1.8;
  }
  #page_about .history .inner dl dt {
    width: auto;
  }
  #page_about .history .inner dl dd {
    width: auto;
  }
  #page_about .history .inner dl dd + dt {
    margin: 20rem 0 0;
  }
}/*# sourceMappingURL=about.css.map */