@charset "UTF-8";
body {
  color: #fff;
  background-color: #000;
}

.red-text {
  color: #ff0000;
}

.contents-header {
  background-image: url(../image/news/news-bg.jpg);
  height: 250px;
  background-attachment: fixed;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.page-title {
  font-size: 3rem;
  text-align: center;
}

.wrapper {
  padding-inline: 20px;
}

.contents-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  padding-inline: 30px;
  margin-block: 100px 200px;
  background-color: #fff;
  color: #000;
  border-radius: 10px;
}
@media screen and (max-width: 1023px) {
  .contents-wrapper {
    max-width: 700px;
  }
}
@media screen and (max-width: 767px) {
  .contents-wrapper {
    width: 100%;
    padding-inline: 20px;
  }
}

.about-wrapper {
  padding-block: 30px 100px;
}

.about-group {
  overflow: hidden;
}
.about-group:first-child {
  margin-top: 50px;
}
.about-group:not(:first-child) {
  margin-block: 100px;
}
.about-group.is-last {
  margin-bottom: 80px;
}

.heading {
  font-size: 2rem;
  position: relative;
  color: #333;
  text-shadow: 0 0 2px white;
  margin-bottom: 1.5rem;
}
.heading:before {
  content: "";
  position: absolute;
  background: #9de5ff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  top: 50%;
  /* border: dashed 1px white; */
  left: -15px;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  z-index: -1;
}
.heading img {
  width: 20%;
  -o-object-fit: contain;
     object-fit: contain;
  height: 2rem;
  vertical-align: middle;
}
@media screen and (max-width: 1023px) {
  .heading img {
    width: 25%;
  }
}
@media screen and (max-width: 767px) {
  .heading img {
    width: 30%;
  }
}

.history-heading {
  position: relative;
  display: inline-block;
  padding: 0 55px;
}
@media screen and (max-width: 767px) {
  .history-heading {
    padding: 0 25px;
  }
}
.history-heading:before, .history-heading:after {
  content: "";
  position: absolute;
  top: 50%;
  display: inline-block;
  width: 45px;
  height: 1px;
  background-color: black;
}
@media screen and (max-width: 767px) {
  .history-heading:before, .history-heading:after {
    width: 15px;
  }
}
.history-heading:before {
  left: 0;
}
.history-heading:after {
  right: 0;
}

.about-image {
  width: 35%;
  margin-left: auto;
}
.about-image img {
  width: 100%;
}
@media screen and (max-width: 1023px) {
  .about-image {
    width: 50%;
  }
}

.company-wrapper {
  padding-block: 130px 200px;
}
@media screen and (max-width: 1023px) {
  .company-wrapper {
    padding-block: 100px;
  }
}

.company-title {
  font-size: 2rem;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  border-bottom: 1px solid #000;
}

.info {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  gap: 20px;
}
@media screen and (max-width: 1023px) {
  .info {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
}

.info-image {
  width: 100%;
  margin-block: 50px 30px;
}
.info-image img {
  width: 100%;
  max-width: 100%;
  -o-object-fit: cover;
     object-fit: cover;
}

.info-lists {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  margin-top: 30px;
}

.info-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  width: 100%;
  margin-bottom: 30px;
  font-size: clamp(14px, 1.3vw, 16px);
}

.info-list-title {
  width: 30%;
  margin-right: 20px;
  text-align: center;
}

.info-list-body li {
  margin-left: 1.5rem;
}

.company-list {
  padding-block: 50px;
  margin-left: 50px;
}
.company-list li {
  margin-left: 1.5rem;
}
@media screen and (max-width: 767px) {
  .company-list li {
    margin-left: 0;
  }
}

.group-lists {
  padding-block: 50px;
}

.group-company {
  font-size: 1.5rem;
  font-size: clamp(1rem, 2vw, 1.5rem);
  margin-block: 10px;
}

.history-wrapper {
  padding-block: 200px 100px;
  overflow: hidden;
}

.section-title {
  font-size: 2.5rem;
  position: relative;
  color: #333;
  text-shadow: 0 0 2px white;
}
.section-title:before {
  content: "";
  position: absolute;
  background: #9de5ff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  top: 50%;
  /* border: dashed 1px white; */
  left: -15px;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  z-index: -1;
}

.history-body {
  font-size: 1.5rem;
}

.company-history-wrapper {
  padding-block: 50px;
  margin-left: 1rem;
  display: none;
}

.company-sub-heading {
  margin-bottom: 30px;
}

.company-history-body {
  max-width: 800px;
  margin: 0 auto;
  margin-block: 20px;
}

/* ******************************
// 年表部分
******************************* */
.timeline {
  list-style: none;
  font-size: clamp(12px, 1.3vw, 15px);
}

.timeline-list {
  overflow: hidden;
  margin: 0;
  position: relative;
}
.timeline-list:last-of-type .timeline-content {
  padding-bottom: 30px;
}

.timeline-date {
  width: 20%;
  float: left;
  margin-top: 10px;
  text-align: right;
  padding-right: 10px;
}

.timeline-content {
  width: 80%;
  float: left;
  border-left: 3px #707070 solid;
  padding-left: 30px;
}
.timeline-content::before {
  content: "";
  width: 12px;
  height: 12px;
  background: #4cb7db;
  position: absolute;
  left: 19.5%;
  top: 14px;
  border-radius: 100%;
}
@media screen and (max-width: 767px) {
  .timeline-content {
    padding-left: 20px;
  }
  .timeline-content::before {
    left: 19%;
  }
}

.timeline-content-body {
  margin-top: 10px;
}

/* ******************************
// ここまで年表部分
******************************* */
.r_d-history-wrapper {
  margin-left: 1rem;
  display: none;
}
@media screen and (max-width: 1023px) {
  .r_d-history-wrapper {
    padding-block: 30px;
  }
}

.r_d-history-body {
  max-width: 800px;
  margin: 0 auto;
  margin-block: 20px;
}
.r_d-history-body .timeline-content::before {
  background: #228b22;
}

.award-wrapper {
  padding-block: 200px 100px;
}
@media screen and (max-width: 1023px) {
  .award-wrapper {
    padding-block: 100px;
  }
}

.sub-heading {
  margin-bottom: 30px;
}

.body-contents {
  padding: 30px 10px;
  border-bottom: 1px solid #000;
  overflow: hidden;
}

.contents-heading {
  font-size: 1.5rem;
  color: #ff0000;
  margin-bottom: 10px;
}

.contents-container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  margin-inline: 30px 20px;
}
@media screen and (max-width: 1023px) {
  .contents-container {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    gap: 20px;
    margin-inline: 30px 10px;
  }
}

.contents-lists {
  width: 100%;
  list-style: none;
}

.contents-list {
  font-size: clamp(14px, 1.3vw, 16px);
}

.contents-image {
  width: 100%;
}
.contents-image img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  -o-object-fit: contain;
     object-fit: contain;
}

.media-wrapper {
  padding-block: 100px 200px;
}
@media screen and (max-width: 1023px) {
  .media-wrapper {
    padding-block: 100px;
  }
}

.media-image {
  width: 100%;
}
.media-image img {
  width: 90%;
  height: 80%;
  max-width: 100%;
  -o-object-fit: contain;
     object-fit: contain;
}

.book-image img {
  width: 50%;
  height: 100%;
  max-width: 50%;
  -o-object-fit: contain;
     object-fit: contain;
}

.newspaper-lists {
  -webkit-column-count: 3;
     -moz-column-count: 3;
          column-count: 3; /* 列数を3列に指定 */
  -webkit-column-gap: 2rem;
     -moz-column-gap: 2rem;
          column-gap: 2rem; /* ← 列間の余白 */
}
@media screen and (max-width: 1023px) {
  .newspaper-lists {
    -webkit-column-count: 2;
       -moz-column-count: 2;
            column-count: 2; /* 列数を2列に指定 */
  }
}

.media-bottom-text {
  margin-block: 50px;
  margin-left: 20px;
}

.event-wrapper {
  padding-block: 200px;
}
@media screen and (max-width: 1023px) {
  .event-wrapper {
    padding-block: 100px;
  }
}

.event-body {
  max-width: 780px;
  margin: 0 auto;
  margin-block: 20px;
  font-size: clamp(14px, 1.3vw, 16px);
  overflow: hidden;
}
.event-body dl {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  margin-bottom: 10px;
}
.event-body dd {
  margin-left: 2rem;
}
@media screen and (max-width: 1023px) {
  .event-body {
    max-width: 100%;
    margin-left: 10px;
  }
  .event-body dl {
    display: block;
    margin-bottom: 20px;
  }
  .event-body dd {
    margin-left: 1.5rem;
  }
}

.global-wrapper {
  padding-block: 200px;
}

.global-body {
  margin-top: 20px;
}
.global-body:last-of-type {
  margin-top: 80px;
}
.global-body .heading {
  font-size: 1.5rem;
}
@media screen and (max-width: 1023px) {
  .global-body:last-of-type {
    margin-top: 100px;
  }
}

.global-image {
  margin-block: 30px;
  text-align: center;
}

.csr-wrapper {
  padding-block: 200px;
}

.csr-text {
  margin-block: 20px;
}

.csr-body {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  gap: 50px;
  max-width: 800px;
  margin: 0 auto;
  margin-block: 80px 50px;
}
@media screen and (max-width: 1023px) {
  .csr-body {
    max-width: 100%;
    padding-inline: 25px;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
}

.csr-image {
  width: 100%;
}
.csr-image img {
  width: 100%;
  max-width: 100%;
}
@media screen and (max-width: 1023px) {
  .csr-image {
    width: 50%;
  }
}

.csr-info-text:nth-of-type(2) {
  margin-block: 50px 30px;
}

.contact-wrapper {
  padding-block: 30px 100px;
  border-top: 1px solid #000;
}

.contact-heading {
  text-align: center;
}

.contact-body {
  margin-top: 30px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  gap: 20px;
}
@media screen and (max-width: 767px) {
  .contact-body {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
  }
}

.contact-link {
  font-size: 1.2rem;
  border: 1px solid #FFF;
  border-radius: 20px;
  padding: 10px 30px;
  background-color: #00bfff;
  color: #fff;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.contact-link:hover {
  font-weight: bold;
  background-color: #fff;
  color: #333;
}

.contact-text .red-text {
  margin-left: 10px;
  font-size: 1.5rem;
}
@media screen and (max-width: 767px) {
  .contact-text .red-text {
    display: block;
    text-align: center;
    margin-left: 0;
  }
}

.parallax-u1 {
  top: 1500px;
  left: 20px;
}

.parallax-u2 {
  top: 300px;
  left: 85px;
}

.parallax-u3 {
  top: 700px;
  left: 85px;
}

.parallax-u4 {
  top: 5000px;
  left: 120px;
}

.parallax-u5 {
  top: 3200px;
  left: 110px;
}

.parallax-u6 {
  top: 7500px;
  left: 85px;
}

.parallax-u7 {
  top: 4200px;
  right: 20px;
}

.parallax-u8 {
  top: 2700px;
  right: 25px;
}

.parallax-u9 {
  top: 1100px;
  right: 85px;
}

.parallax-u10 {
  top: 2400px;
  right: 55px;
}

.parallax-u11 {
  top: 760px;
  right: 55px;
}

.parallax-u12 {
  top: 1800px;
  left: 30px;
}

.parallax-u13 {
  top: 6000px;
  right: 60px;
}

.parallax-u14 {
  top: 1700px;
  right: 20px;
}

.parallax-u15 {
  top: 2700px;
  left: 15px;
}

footer {
  color: #fff;
}



/* History 年表表示・非表示ボタン */
.btn-area {
  margin-block: 20px;
}

.history-btn {
  padding: 20px;
  padding-right: 40px;
  border-radius: 5px;
  cursor: pointer;
  position: relative;
  display: inline-block;
}

.show-btn {
  border: 1px solid #333;
  background-color: #fff;
}
.show-btn:after {
  content: '';
  width: 10px;
  height: 10px;
  border: 0;
  border-bottom: solid 2px #000;
  border-right: solid 2px #000;
  transform: rotate(45deg);
  position: absolute;
  top: 0;
  right: 15px;
  bottom: 0;
  margin: auto;
}
.show-btn:hover {
  background-color: #000;
  border-color: #300;
  color: #fff;
}
.show-btn:hover:after {
  border-color: #fff;
}

.hide-btn {
  border: 1px solid #333;
  background-color: #333;
  color: #fff;
  display: none;
}
.hide-btn:after {
  content: '';
  width: 10px;
  height: 10px;
  border: 0;
  border-top: solid 2px #fff;
  border-right: solid 2px #fff;
  transform: rotate(-45deg);
  position: absolute;
  top: 8px;
  right: 15px;
  bottom: 0;
  margin: auto;
}
.hide-btn:hover {
  background-color: #fff;
  color: #000;
}
.hide-btn:hover:after {
  border-color: #000;
}