@charset "UTF-8";
/*
 *  SiteName : DETAIL ARTIST(ディテールアーティスト)
 *  $00A9 2025 DETAIL ARTIST
 */
/*==============================================================
  common
==============================================================*/

.aboutus_content-border {
  position: relative;
  padding: 40px;
  width: 1118px;
  border: 1px solid #fff;
  border-radius: 50px;
}

.aboutus_content-mainimage {
  position: absolute;
  width: calc(100% - 80px);
  height: calc(100% - 80px);
  max-height: 560px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  border-radius: 20px;
  z-index: -1;
}

.aboutus_content-mainimage-sp {
display: none;
}

.aboutus_main-explanation {
  margin: 0 auto;
  padding: 60px;
  width: calc(100% - 120px);
}
.aboutus_main-explanation h2 {
  line-height: 50px;
  font-size: 40px;
  font-size: 4rem;
}
.aboutus_main-explanation h3 {
  margin: 17px 0 0;
}
.aboutus_main-explanation p {
  margin: 30px 0 0;
  width: 70%;
  line-height: 32px;
}
.aboutus_main-explanation details {
  margin: 72px 0 0;
  width: 100%;
}
.aboutus_main-explanation details summary {
  position: relative;
  padding: 16px 0 15px 30px;
  width: 218px;
  border: 1px solid #fff;
  border-radius: 30px;
  display: block;
  transition: all 0.5s ease;
}
.aboutus_main-explanation details summary span {
  position: absolute;
  top: 50%;
  right: 17px;
  width: 16px;
  height: 16px;
  display: inline-block;
  transform: translateX(-50%);
}
.aboutus_main-explanation details summary span::before, .aboutus_main-explanation details summary span::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 16px;
  height: 2px;
  content: "";
  background-color: #fff;
  transition: all 0.5s ease;
}
.aboutus_main-explanation details summary span::after {
  transform: rotate(90deg);
}
.aboutus_main-explanation details::details-content {
  opacity: 0;
  transition: all 0.5s ease;
}
.aboutus_main-explanation details[open]::details-content {
  opacity: 1;
}
.aboutus_main-explanation details[open] summary span::after {
  top: 10px;
  opacity: 0;
}
.aboutus_main-explanation details .aboutus_detail-content {
  margin: 100px 0 0;
  width: 100%;
  display: inline-block;
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block {
  margin: 0 0 30px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-image {
  width: 400px;
  order: 2;
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text {
  margin: 0 80px 0 0;
  width: calc(100% - 80px - 400px);
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text h4 {
  font-size: 24px;
  font-size: 2.4rem;
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text h4 span {
  margin: 0 14px 0 0;
  font-size: 28px;
  font-size: 2.8rem;
  display: inline-block;
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text p {
  margin: 26px 0 0;
  width: 100%;
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block:nth-of-type(2) .aboutus_detail-image {
  order: 1;
}
.aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block:nth-of-type(2) .aboutus_detail-text {
  margin: 0 0 0 80px;
  order: 2;
}

/*==============================================================
  aboutus_title
==============================================================*/
#aboutus_title {
  margin: 140px auto 0;
}
#aboutus_title h2 {
  font-size: 20px;
  font-size: 2rem;
}
#aboutus_title h3 {
  margin: 23px 0 0;
  font-size: 70px;
  font-size: 7rem;
}
#aboutus_title h4 {
  margin: 40px 0 0;
}
#aboutus_title .aboutus_image {
  margin: 60px 0 0;
  width: 100%;
  height: 400px;
  background-image: url(../img/about-us/title-image.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/*==============================================================
  aboutus_brand-business
==============================================================*/
#aboutus_brand-business .aboutus_content-mainimage {
  background-image: url(../img/about-us/brandbusiness-image01.png);
}
#aboutus_brand-business .aboutus_content-mainimage-sp {
  background-image: url(../img/about-us/bb-image01_sp.png);
}

/*==============================================================
  aboutus_oem-business
==============================================================*/
#aboutus_oem-business .aboutus_content-mainimage {
  background-image: url(../img/about-us/brandbusiness-image02.png);
}
#aboutus_oem-business .aboutus_content-mainimage-sp {
  background-image: url(../img/about-us/oem-image01_sp.png);
}

/*==============================================================
  aboutus_merchandising-consulting
==============================================================*/
#aboutus_merchandising-consulting .aboutus_content-mainimage {
  background-image: url(../img/about-us/brandbusiness-image03.png);
}
#aboutus_merchandising-consulting .aboutus_content-mainimage-sp {
  background-image: url(../img/about-us/ec-image01_sp.png);
}

@media only screen and (max-width: 48.0625em){
  section {
    margin: 60px auto 0;
  }
  .aboutus_content-border {
    padding: 20px;
    width: calc(92% - 2px - 40px);
    border-radius: 30px;
  }
  .aboutus_content-mainimage {
    /*position: static;
    width: 100%;
    height: 200px;*/
    display: none;
  }
.aboutus_content-mainimage-sp {
  display: block;
  width: calc(100% - 80px);
  height: calc(100% - 80px);
  max-height: 560px;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  border-radius: 20px;
  z-index: -1;
}
  .aboutus_content-mainimage-sp {
    position: static;
    width: 100%;
    height: 200px;
  }
  .aboutus_main-explanation {
    margin: 30px auto 0;
    padding: 0;
    width: 100%;
  }
  .aboutus_main-explanation h2 {
    line-height: 30px;
    font-size: 30px;
    font-size: 3rem;
  }
  .aboutus_main-explanation h3 {
    margin: 14px 0 0;
  }
  .aboutus_main-explanation p {
    width: 100%;
    line-height: 24px;
  }
  .aboutus_main-explanation details {
    margin: 30px 0 0;
  }
  .aboutus_main-explanation details summary {
    margin: 0 auto;
    padding: 19px 0 18px 20px;
    width: 228px;
  }
  .aboutus_main-explanation details summary span {
    right: 20px;
    width: 14px;
    height: 14px;
  }
  .aboutus_main-explanation details summary span::before, .aboutus_main-explanation details summary span::after {
    width: 14px;
  }
  .aboutus_main-explanation details .aboutus_detail-content {
    margin: 40px auto 0;
  }
  .aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block {
    display: block;
  }
  .aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-image {
    width: 100%;
  }
  .aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text {
    margin: 20px auto 0;
    width: 100%;
  }
  .aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text h4 {
    font-size: 20px;
    font-size: 2rem;
  }
  .aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text h4 span {
    margin: 0 13px 0 0;
    font-size: 22px;
    font-size: 2.2rem;
  }
  .aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block .aboutus_detail-text p {
    margin: 16px 0 0;
  }
  .aboutus_main-explanation details .aboutus_detail-content .aboutus_detail-content-block:nth-of-type(2) .aboutus_detail-text {
    margin: 20px auto 0;
  }
  #aboutus_title {
    margin: 100px auto 0;
  }
  #aboutus_title h2 {
    font-size: 14px;
    font-size: 1.4rem;
  }
  #aboutus_title h3 {
    margin: 14px 0 0;
    font-size: 36px;
    font-size: 3.6rem;
  }
  #aboutus_title h4 {
    margin: 20px 0 0;
    font-size: 13px;
    font-size: 1.3rem;
  }
  #aboutus_title .aboutus_image {
    margin: 40px 0 0;
    height: 160px;
  }
}