@charset "UTF-8";
:root {
  --green: #0aa547;
  --numberfont: "ITC Franklin Gothic", "arial", sans-serif;
}

body {
  color: #fff;
  background-color: #040404;
  background-image: url("../img/index/index_bg.webp");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  overflow: hidden;
  min-height: 700px;
}

.indexview #cover {
  width: 100%;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
  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;
  background-image: url("../img/index/index_bg1.webp");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  background-color: rgb(10, 20, 30);
  opacity: 1;
}
.indexview #cover .cover_inner {
  text-align: center;
  position: relative;
  z-index: 3;
}
.indexview #cover h1 {
  font-size: 50px;
  font-weight: bold;
  padding-bottom: 20px;
  position: relative;
  z-index: 3;
  text-shadow: 3px 3px 8px rgb(0, 0, 0);
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
@media screen and (max-width: 820px) {
  .indexview #cover h1 {
    font-size: 7vw;
  }
}
.indexview #cover .subtttl {
  font-size: 36px;
  font-weight: 600;
  color: #00e36c;
  position: relative;
  z-index: 3;
  text-shadow: 3px 3px 8px rgb(0, 0, 0);
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
@media screen and (max-width: 820px) {
  .indexview #cover .subtttl {
    font-size: 5.5vw;
  }
}
.indexview #cover .btn {
  display: inline-block;
  cursor: pointer;
  margin-top: 40px;
  position: relative;
  z-index: 3;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
.indexview #cover .btn span {
  display: inline-block;
  font-size: 26px;
  font-weight: 600;
  color: #0aa547;
  background-color: #fff;
  padding: 12px 50px;
  -webkit-transition: background-color 0.2s;
  transition: background-color 0.2s;
}
@media screen and (max-width: 620px) {
  .indexview #cover .btn span {
    font-size: 22px;
    padding: 10px 40px;
  }
}
.indexview #cover .btn span:hover {
  color: #fff;
  background-color: #0aa547;
}
.indexview #cover .btn span:active {
  -webkit-transform: translateY(4px);
          transform: translateY(4px);
}
.indexview #cover.is_hide {
  -webkit-animation: enter_index 0.3s ease-in-out 0s both;
          animation: enter_index 0.3s ease-in-out 0s both;
}
@-webkit-keyframes enter_index {
  0% {
    opacity: 1;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.1);
            transform: scale(1.1);
  }
}
@keyframes enter_index {
  0% {
    opacity: 1;
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  100% {
    opacity: 0;
    -webkit-transform: scale(1.1);
            transform: scale(1.1);
  }
}
.indexview .wrapper {
  height: 100vh;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 0;
}

#index_content {
  opacity: 0;
  visibility: hidden;
}

#index_content.is_open {
  opacity: 1;
  visibility: visible;
}

@-webkit-keyframes open_slide {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes open_slide {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
.swiper-container {
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  max-width: 1900px;
}
@media screen and (max-width: 620px) {
  .swiper-container {
    padding-top: 8vw;
  }
}
.swiper-slide .item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  color: #000;
  background-image: url("../img/index/swiper_bg.webp");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  background-color: #fff;
  -webkit-box-shadow: 0px 10px 50px rgba(0, 0, 0, 0.8);
          box-shadow: 0px 10px 50px rgba(0, 0, 0, 0.8);
  width: 65%;
  height: auto;
  aspect-ratio: 5/3;
  margin: 0 auto;
  overflow: hidden;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item {
    width: 70%;
    height: auto;
    aspect-ratio: 5/3;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item {
    aspect-ratio: 4/5;
  }
}
@media (max-width: 620px) {
  .swiper-slide .item {
    width: 85%;
    min-height: 480px;
    aspect-ratio: 5/8;
    -webkit-box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.4);
            box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.4);
  }
}
.swiper-slide .item_fb {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  width: 100%;
  text-align: left;
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb {
    display: block;
    position: relative;
  }
}
.swiper-slide .item_fb .item_fb_photo {
  width: 30%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-flow: column;
          flex-flow: column;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .item_fb_photo {
    width: 100%;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-flow: row;
            flex-flow: row;
    padding-right: 0px;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .item_fb_photo {
    width: 100%;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-flow: row;
            flex-flow: row;
    padding-right: 0px;
  }
}
.swiper-slide .item_fb .item_fb_text {
  width: 70%;
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .item_fb_text {
    width: auto;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .item_fb_text {
    padding-bottom: 60px;
  }
}
.swiper-slide .item_fb .chapter_number {
  padding: 20px 0 10px 60px;
  font-size: 40px;
  font-weight: bold;
  color: #fff;
  background-color: #0aa547;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .chapter_number {
    font-size: 2.7vw;
    padding: 1vw 0 0.5vw 3.2vw;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .chapter_number {
    padding: 2vw 0 0.5vw 3.2vw;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .chapter_number {
    padding: 2vw 0 1vw 3.2vw;
    font-size: 4.5vw;
  }
}
.swiper-slide .item_fb .t1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.2;
  -webkit-font-feature-settings: "palt";
          font-feature-settings: "palt";
  padding: 40px 60px 0;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .t1 {
    font-size: 2.7vw;
    padding: 2.3vw 3.2vw 0;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .t1 {
    font-size: 4vw;
    padding: 4vw 3.2vw 0;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .t1 {
    font-size: 5vw;
    line-height: 1.4;
    padding: 4vw 6vw 0;
  }
}
.swiper-slide .item_fb .t1 strong {
  font-size: 1.1em;
  color: #0aa547;
}
.swiper-slide .item_fb .t2 {
  padding: 20px 10px 0 60px;
  font-size: 40px;
  font-weight: bold;
  font-family: var(--numberfont);
  color: #bbb;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .t2 {
    padding: 1.2vw 0 0 3.2vw;
    font-size: 2.5vw;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .t2 {
    font-size: 4vw;
    padding: 0;
    position: absolute;
    top: 17vw;
    right: 3.2vw;
    color: #fff;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .t2 {
    top: 21vw;
    font-size: 5vw;
  }
}
.swiper-slide .item_fb .t3 {
  padding: 20px 0 0 60px;
  margin-right: 40px;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .t3 {
    margin-right: 3.2vw;
    padding: 1.2vw 0 0 3.2vw;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .t3 {
    padding: 3vw 0 0 3.2vw;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .t3 {
    padding: 3vw 6vw 0 6vw;
    margin-right: 0px;
  }
}
.swiper-slide .item_fb .t3 span {
  font-size: 14px;
  padding-bottom: 5px;
  display: block;
  color: #0aa547;
  border-bottom: solid 1px #2ac567;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .t3 span {
    font-size: 1vw;
    padding-bottom: 0.3vw;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .t3 span {
    font-size: 2vw;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .t3 span {
    font-size: 3vw;
    padding-bottom: 1vw;
  }
}
.swiper-slide .item_fb .t4 {
  padding: 10px 40px 0 60px;
  font-size: 16px;
  line-height: 1.5;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .t4 {
    padding: 0.7vw 3.2vw 0;
    font-size: 1vw;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .t4 {
    font-size: 2vw;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .t4 {
    padding: 2vw 6vw 0;
    font-size: 11px;
    line-height: 1.3;
  }
}
.swiper-slide .item_fb .t4 li {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.swiper-slide .item_fb .t4 li span:first-child {
  display: inline-block;
  min-width: 8em;
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .t4 li span:first-child {
    min-width: 7em;
  }
}
.swiper-slide .item_fb .t4 li + li {
  margin-top: 5px;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .t4 li + li {
    margin-top: 5px;
  }
}
.swiper-slide .item_fb .photo img {
  width: 100%;
  height: auto;
}
.swiper-slide .item_fb .btn {
  padding: 30px 0 0 60px;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .btn {
    padding: 1.5vw 0 0 3.2vw;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .btn {
    padding: 0;
    position: absolute;
    left: 50%;
    bottom: 5vw;
    -webkit-transform: translateX(-50%);
            transform: translateX(-50%);
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .btn {
    width: 90%;
  }
}
.swiper-slide .item_fb .btn a {
  display: inline-block;
  background-color: #0aa547;
  color: #fff;
  font-size: 22px;
  padding: 20px 90px;
  background-image: url("../img/index/arrow.svg");
  background-position: center right 1.5vw;
  background-repeat: no-repeat;
  background-size: 0.6vw;
  -webkit-transition: background-position 0.2s;
  transition: background-position 0.2s;
}
@media screen and (max-width: 1800px) {
  .swiper-slide .item_fb .btn a {
    font-size: 1.3vw;
    padding: 1vw 5vw;
  }
}
@media screen and (max-width: 960px) {
  .swiper-slide .item_fb .btn a {
    font-size: 2vw;
    padding: 14px 60px;
    background-position: center right 20px;
    background-size: 10px;
    text-align: center;
  }
}
@media screen and (max-width: 620px) {
  .swiper-slide .item_fb .btn a {
    font-size: 14px;
    display: block;
    padding: 10px 40px;
  }
}
.swiper-slide .item_fb .btn a:hover {
  background-color: #21cb6b;
  background-position: center right 1.2vw;
}

.swiper-slide-active .item {
  background-color: #fff;
  opacity: 1;
}

.swiper-container.visible {
  overflow: visible;
}

/* Swiper CSS */
.swiper-button-disabled {
  pointer-events: none;
  opacity: 0;
}

.swiper-pagination {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  font-size: 1.5vw;
  font-family: var(--numberfont);
  font-weight: bold;
  text-align: center;
  padding-top: 50px;
  border-bottom: solid 1px rgba(255, 255, 255, 0.5);
}
@media screen and (max-width: 960px) {
  .swiper-pagination {
    font-size: 1.8vw;
  }
}
@media screen and (max-width: 620px) {
  .swiper-pagination {
    font-size: 3.5vw;
    padding-top: 6vw;
    padding-bottom: 10vw;
  }
}

.swiper-pagination-bullet {
  color: #fff;
  cursor: pointer;
  border-radius: 0;
  margin: 0 1vw;
  padding-bottom: 10px;
  border-bottom: solid 4px rgba(0, 0, 0, 0);
  opacity: 1;
  -webkit-transition: 0.2s;
  transition: 0.2s;
}
@media screen and (max-width: 960px) {
  .swiper-pagination-bullet {
    width: auto;
    margin: 0 1vw;
  }
}
@media screen and (max-width: 620px) {
  .swiper-pagination-bullet {
    margin: 0 2vw 3vw;
    padding-bottom: 2px;
    width: auto;
  }
}

.swiper-pagination-bullet:hover {
  color: #00e36c;
  border-bottom: solid 4px var(--green);
}
@media screen and (max-width: 620px) {
  .swiper-pagination-bullet:hover {
    border-bottom: solid 2px var(--green);
  }
}

.swiper-pagination-bullet-active {
  color: #00e36c;
  -webkit-transform: translateY(2px);
          transform: translateY(2px);
  border-bottom: solid 4px var(--green);
}
@media screen and (max-width: 620px) {
  .swiper-pagination-bullet-active {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
}
@media screen and (max-width: 620px) {
  .swiper-pagination-bullet-active {
    border-bottom: solid 2px var(--green);
  }
}

.swiper-pagination-bullet:nth-child(1):after {
  content: "1973-1977";
}

.swiper-pagination-bullet:nth-child(2):after {
  content: "1978-1988";
}

.swiper-pagination-bullet:nth-child(3):after {
  content: "1989-2000";
}

.swiper-pagination-bullet:nth-child(4):after {
  content: "2001-2005";
}

.swiper-pagination-bullet:nth-child(5):after {
  content: "2006-2009";
}

.swiper-pagination-bullet:nth-child(6):after {
  content: "2010-2014";
}

.swiper-pagination-bullet:nth-child(7):after {
  content: "2015-2018";
}

.swiper-pagination-bullet:nth-child(8):after {
  content: "2019-2023";
}

.swiper-button-next,
.swiper-button-prev {
  display: -ms-grid;
  display: grid;
  place-content: center;
  position: absolute;
  z-index: 1;
  width: 5vw;
  height: 5vw;
  top: 40%;
  bottom: auto;
  margin: auto;
  cursor: pointer;
  -webkit-box-shadow: 0px 3px 8px rgba(0, 0, 0, 0.5);
          box-shadow: 0px 3px 8px rgba(0, 0, 0, 0.5);
  background-color: rgba(10, 150, 0, 0.5);
  -webkit-transition: 0.2s;
  transition: 0.2s;
}
@media screen and (max-width: 960px) {
  .swiper-button-next,
.swiper-button-prev {
    width: 7vw;
    height: 7vw;
  }
}
@media screen and (max-width: 620px) {
  .swiper-button-next,
.swiper-button-prev {
    width: 9vw;
    height: 15vw;
    background-color: rgb(10, 150, 0);
  }
}
.swiper-button-next img,
.swiper-button-prev img {
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
@media screen and (max-width: 620px) {
  .swiper-button-next img,
.swiper-button-prev img {
    width: 16px;
    height: 18px;
  }
}

.swiper-button-prev {
  left: 0;
}

.swiper-button-next {
  right: 0;
}

.swiper-button-prev:hover {
  background-color: rgb(10, 150, 0);
  opacity: 1;
}

.swiper-button-next:hover {
  background-color: rgb(10, 150, 0);
  opacity: 1;
}

/* 背景画像 */
.ring_group {
  opacity: 0.6;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  width: 515px;
  height: 515px;
  margin: 0 auto;
  z-index: 2;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
@media screen and (max-width: 620px) {
  .ring_group {
    -webkit-transform: scale(0.7) translate(-71%, -85%);
            transform: scale(0.7) translate(-71%, -85%);
  }
}

#rings .bg_ring1 {
  -webkit-transition: 0.2s;
  transition: 0.2s;
  position: absolute;
  right: 0px;
  top: 0px;
}
#rings .bg_ring1 img {
  -webkit-animation: rotate_ring1 90s linear infinite;
          animation: rotate_ring1 90s linear infinite;
}
#rings .bg_ring2 {
  -webkit-transition: 0.3s;
  transition: 0.3s;
  position: absolute;
  right: 10px;
  top: 10px;
}
#rings .bg_ring2 img {
  -webkit-animation: rotate_ring2 100s linear infinite;
          animation: rotate_ring2 100s linear infinite;
}
#rings .bg_ring3 {
  -webkit-transition: 0.2s;
  transition: 0.2s;
  position: absolute;
  right: 40px;
  top: 40px;
}
#rings .bg_ring3 img {
  -webkit-animation: rotate_ring1 50s linear infinite;
          animation: rotate_ring1 50s linear infinite;
}
#rings .bg_ring4 {
  -webkit-transition: 0.2s;
  transition: 0.2s;
  position: absolute;
  right: 76px;
  top: 76px;
}
#rings .bg_ring4 img {
  -webkit-animation: rotate_ring2 50s linear infinite;
          animation: rotate_ring2 50s linear infinite;
}
#rings .bg_ring5 {
  -webkit-transition: 0.2s;
  transition: 0.2s;
  position: absolute;
  right: 118px;
  top: 118px;
}
#rings .bg_ring5 img {
  -webkit-animation: rotate_ring1 40s linear infinite;
          animation: rotate_ring1 40s linear infinite;
}

#rings.speedup .bg_ring1 {
  -webkit-transform: scale(0.95);
          transform: scale(0.95);
}
#rings.speedup .bg_ring1 img {
  width: 100%;
  -webkit-animation-duration: 4s;
          animation-duration: 4s;
}
#rings.speedup .bg_ring2 {
  -webkit-transform: scale(1.1);
          transform: scale(1.1);
}
#rings.speedup .bg_ring2 img {
  -webkit-animation-duration: 4s;
          animation-duration: 4s;
  width: 100%;
}
#rings.speedup .bg_ring3 {
  -webkit-transform: scale(1.02);
          transform: scale(1.02);
}
#rings.speedup .bg_ring3 img {
  width: 100%;
}
#rings.speedup .bg_ring4 {
  -webkit-transform: scale(0.75);
          transform: scale(0.75);
}
#rings.speedup .bg_ring4 img {
  width: 100%;
}
#rings.speedup .bg_ring5 {
  -webkit-transform: scale(1.3);
          transform: scale(1.3);
}
#rings.speedup .bg_ring5 img {
  width: 100%;
}

@-webkit-keyframes rotate_ring1 {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}

@keyframes rotate_ring1 {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
@-webkit-keyframes rotate_ring2 {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(-360deg);
            transform: rotate(-360deg);
  }
}
@keyframes rotate_ring2 {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(-360deg);
            transform: rotate(-360deg);
  }
}
.nidec_logo {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1;
}
@media screen and (max-width: 820px) {
  .nidec_logo {
    top: 10px;
    left: 10px;
  }
}
@media screen and (max-width: 620px) {
  .nidec_logo {
    top: 5px;
    left: 5px;
  }
}
.nidec_logo img {
  width: 130px;
  padding: 10px;
  background-color: #fff;
}
@media screen and (max-width: 820px) {
  .nidec_logo img {
    width: 100px;
  }
}
@media screen and (max-width: 620px) {
  .nidec_logo img {
    width: 60px;
    padding: 5px;
  }
}