@charset "UTF-8";

.content {
  display: none;
}
.content.show {
  display: block;
}
.ttl_wrap {
  position: relative;
}
.ttl_wrap .ttl_txt {
  width: 1100px;
  position: absolute;
  top: 50%;
  bottom: 50%;
  right: 0;
  left: 0;
  margin: -57px auto 0;
  z-index: 1;
}
.ttl_wrap .ttl_txt h1 {
  color: #fff;
  font-size: 30px;
  line-height: 1.4;
  margin-bottom: 10px;
  text-align: center;
}
.ttl_wrap .ttl_txt p {
  color: #fff;
  font-size: 14px;
  line-height: 1.8;
  text-align: center;
}
.ttl_wrap .ttl_bg {
  position: relative;
  width: 100vw;
  height: 400px;
  overflow: hidden;
}
.ttl_wrap .ttl_bg img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100vw;
  height: 100%;
  object-fit: cover;
}
.tab_container {
  width: 800px;
  margin: 0 auto 50px;
  border-radius: 5px;
  border: 1px solid #5396D1;
  display: flex;
  text-align: center;
}
.tab_container .tab {
  color: #5396D1;
  font-size: 18px;
  font-weight: bold;
  line-height: 60px;
  height: 60px;
  display: inline-block;
  cursor: pointer;
  position: relative;
}
.tab_container .tab:first-of-type {
  width: 272px;
}
.tab_container .tab:nth-of-type(2) {
  width: 176px;
}
.tab_container .tab:nth-of-type(3) {
  width: 128px;
}
.tab_container .tab:last-of-type {
  width: 222px;
}
.tab_container .tab:hover {
  opacity: 0.7;
}
.tab_container .tab:first-of-type::before {
  content: none;
}
.tab_container .tab::before {
  content: "";
  width: 1px;
  height: 100%;
  background-color: #5396D1;
  display: inline-block;
  position: absolute;
  top: 0;
  left: 0;
}
.tab_container .tab.active {
  color: #fff;
  background-color: #5396D1;
}
.tab_container .tab.active::after {
  content: "";
  width: 18px;
  height: 15px;
  background: #5396D1;
  clip-path: polygon(0 0, 100% 0%, 50% 100%);
  position: absolute;
  bottom: -15px;
  right: 0;
  left: 0;
  margin: 0 auto;
}
.content_container .content .about_top {
  margin-bottom: 80px;
}
.content_container .content .about_top h2 {
  color: #5396D1;
  font-size: 28px;
  margin-bottom: 40px;
  text-align: center;
}
.content_container .content .about_top > p {
  font-size: 14px;
  line-height: 2;
  margin-bottom: 40px;
}
.content_container .content .about_top .service_list {
  display: flex;
}
.content_container .content .about_top .service_list li {
  width: 220px;
  padding: 20px 20px 30px;
  margin-right: 6px;
  box-shadow: 0px 3px 6px 0px rgba(0, 0, 0, 0.16);
  text-align: center;
  border-radius: 5px;
}
.content_container .content .about_top .service_list li:last-child {
  margin: 0;
}
.content_container .content .about_top .service_list li .ico {
  display: inline-block;
  margin-bottom: 15px;
}
.content_container .content .about_top .service_list li h3 {
  color: #5396D1;
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: 15px;
}
.content_container .content .about_top .service_list li > p {
  font-size: 14px;
  font-weight: normal;
  line-height: 1.5;
}
.greeting_area {
  margin-bottom: 100px;
}
.greeting_area .greeting_box {
  display: flex;
}
.greeting_area .greeting_box .greeting_txt {
  width: 550px;
  margin-right: 20px;
}
.greeting_area .greeting_box .greeting_txt p {
  font-size: 14px;
  line-height: 2;
}
.greeting_area .greeting_box .greeting_txt p.name_right {
  line-height: 1.6;
  text-align: right;
}
.greeting_area .greeting_box .greeting_img {
  width: 300px;
  border-radius: 5px;
  overflow: hidden;
}
.business_area .business_list {
  display: flex;
}
.business_area .business_list li {
  width: 293px;
  margin-right: 11px;
  padding: 30px;
  box-shadow: 0px 3px 6px 0px rgba(0, 0, 0, 0.16);
  border-radius: 5px;
  position: relative;
}
.business_area .business_list li:last-child {
  margin: 0;
}
.business_area .business_list li h3 {
  color: #5396D1;
  font-size: 23px;
  margin-bottom: 20px;
}
.business_area .business_list li .business_txt {
  font-size: 14px;
  font-weight: normal;
  line-height: 1.8;
  margin-bottom: 80px;
}
.business_area .business_list li .btn {
  position: absolute;
  width: 80%;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
}
.business_area .business_list li .btn a {
  width: 100%;
  font-size: 18px;
  line-height: 56px;
  height: 56px;
}
.overview_table dl {
  display: flex;
  margin-bottom: 5px;
}
.overview_table dl.last {
  margin-bottom: 0;
}
.overview_table dl dt {
  color: #fff;
  font-size: 14px;
  font-weight: bold;
  width: 150px;
  margin-right: 5px;
  padding: 25px 30px;
  background-color: #5396D1;
  display: flex;
  align-items: center;
}
.overview_table dl dd {
  font-size: 14px;
  font-weight: normal;
  line-height: 1.8;
  background-color: #fffae9;
  width: 745px;
  padding: 26px 40px;
}
.overview_table dl dd .office {
  margin-bottom: 25px;
}
.overview_table dl dd .paragraph {
  margin-bottom: 10px;
}
.history_area .timeline {
  padding: 20px 0 20px 30px;
  position: relative;
}
.history_area .timeline::before {
  content: "";
  width: 2px;
  height: 100%;
  background-color: #5396D1;
  display: inline-block;
  position: absolute;
  top: 0;
  left: 0;
}
.history_area .timeline dl {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
  position: relative;
}
.history_area .timeline dl.line2 {
  align-items: flex-start;
}
.history_area .timeline dl.last {
  margin: 0;
}
.history_area .timeline dl::after {
  content: "";
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: #5396D1;
  display: inline-block;
  position: absolute;
  top: 14px;
  left: -39px;
}
.history_area .timeline dl dt {
  color: #5396D1;
  font-size: 16px;
  line-height: 1.5;
  font-weight: bold;
  margin-right: 50px;
}
.history_area .timeline dl dt span {
  font-size: 26px;
}
.history_area .timeline dl dd {
  font-size: 14px;
  font-weight: normal;
  line-height: 1.6;
}
.history_area .timeline dl.line2 dd {
  margin-top: 8px;
}
.group_company_area .group_company_txt {
  font-size: 14px;
  line-height: 2;
  margin-bottom: 60px;
  text-align: center;
}
.group_company_area .group_company_table dl {
  display: flex;
}
.group_company_area .group_company_table dl dt {
  color: #fff;
  font-size: 14px;
  font-weight: bold;
  background-color: #5396D1;
  padding: 30px;
  width: 400px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  position: relative;
}
.group_company_area .group_company_table dl dt::after {
  content: "";
  width: 100%;
  height: 1px;
  background-color: #fff;
  display: inline-block;
  position: absolute;
  bottom: 0;
  left: 0;
}
.group_company_area .group_company_table dl dd {
  font-size: 14px;
  line-height: 1.8;
  padding: 26px 40px;
  width: 500px;
  box-sizing: border-box;
  position: relative;
}
.group_company_area .group_company_table dl dd.first::before {
  content: "";
  width: 100%;
  height: 1px;
  background-color: #5396D1;
  display: inline-block;
  position: absolute;
  top: 0;
  left: 0;
}
.group_company_area .group_company_table dl dd::after {
  content: "";
  width: 100%;
  height: 1px;
  background-color: #5396D1;
  display: inline-block;
  position: absolute;
  bottom: 0;
  left: 0;
}
.group_company_area .group_company_table dl dd .txt_wrap {
  margin-bottom: 20px;
}
.group_company_area .group_company_table dl dd .paragraph {
  margin-bottom: 15px;
}
.group_company_area .group_company_table dl dd .btn a {
  font-size: 16px;
  line-height: 40px;
  width: 240px;
  height: 40px;
}
.group_company_area .group_company_table dl dd .btn a::before, .group_company_area .group_company_table dl dd .btn a::after {
  top: calc(50% - 1px);
  width: 8px;
  height: 2px;
  transform-origin: calc(100% - 1px) 50%;
}
.business_area {
  margin-bottom: 120px;
}
.overview_table dl dd .office .office_map {
  margin-bottom: 15px;
}




/*     SP
------------------------------*/
@media (max-width: 768px) {
  .ttl_wrap .ttl_txt {
    width: 100%;
  }
  .ttl_wrap .ttl_txt {
    width: auto;
    margin: -100px 15px 0;
  }
  .ttl_wrap .ttl_txt h1 {
    font-size: 30px;
  }
  .ttl_wrap .ttl_txt p {
    font-size: 14px;
  }
  .contents.width900 {
    width: auto;
    margin: 80px 15px 120px;
  }
  .tab_container {
    width: 100%;
  }
  .tab_container .tab {
    font-size: 10px;
    line-height: 40px;
    padding: 0;
    height: 40px;
    text-align: center;
  }
  .tab_container .tab:first-of-type {
    width: 31%;
    line-height: 1.3;
    padding-top: 7px;
  }
  .tab_container .tab:nth-of-type(2) {
    width: 23%
  }
  .tab_container .tab:nth-of-type(3) {
    width: 15%
  }
  .tab_container .tab:last-of-type {
    width: 31%
  }
  .greeting_area .greeting_box {
    display: block;
  }
  .greeting_area .greeting_box .greeting_txt {
    width: auto;
    margin: 0 0 30px 0;
  }
  .greeting_area .greeting_box .greeting_img {
    width: 100%;
  }
  .greeting_area .greeting_box .greeting_img {
    width: 90%;
    margin: 0 auto;
  }
  .content_container .content .about_top h2 {
    font-size: 24px;
  }
  .content_container .content .about_top .service_list {
    flex-wrap: wrap;
  }
  .content_container .content .about_top .service_list li {
    width: 48%;
    margin-right: 3%;
    margin-bottom: 3%;
    padding: 20px 10px 25px;
  }
  .content_container .content .about_top .service_list li:nth-child(2) {
    margin-right: 0;
  }
  .content_container .content .about_top .service_list li:nth-child(n+3) {
    margin-bottom: 0;
  }
  .content_container .content .about_top .service_list li h3 {
    font-size: 16px;
  }
  .content_container .content .about_top .service_list li > p {
    font-size: 14px;
  }
  .business_area .business_list {
    flex-wrap: wrap;
  }
  .business_area .business_list li {
    width: 100%;
    margin: 0 0 5% 0;
  }
  .business_area .business_list li:last-child {
    margin: 0;
  }
  .overview_table dl {
    width: 100%;
  }
  .overview_table dl dt {
    font-size: 16px;
    width: 30%;
    margin-right: 2%;
    padding: 10px 15px;
  }
  .overview_table dl dd {
    width: 68%;
    font-size: 14px;
    padding: 10px 20px;
  }
  .history_area .timeline dl dt {
    font-size: 16px;
    margin-right: 5%;
    width: 35%;
  }
  .history_area .timeline dl dt span {
    font-size: 22px;
  }
  .history_area .timeline dl dd {
    font-size: 14px;
    width: 60%;
  }
  .history_area .timeline {
    padding: 20px 0 20px 20px;
  }
  .history_area .timeline dl::after {
    left: -26px;
    width: 14px;
    height: 14px;
  }
  .group_company_area .group_company_table dl {
    width: 100%;
  }
  .group_company_area .group_company_table dl dt {
    width: 30%;
    font-size: 14px;
    line-height: 1.6;
    padding: 10px;
  }
  .group_company_area .group_company_table dl dd {
    font-size: 14px;
    width: 70%;
    padding: 10px 20px;
  }
  .group_company_area .group_company_table dl dd .btn a {
    width: 100%;
    font-size: 14px;
  }
  .overview_table dl dd .office .office_map iframe {
    width: 100%;
    height: 200px;
  }
}