@charset "utf-8";
/*
font-family: "游明朝体";
font-weight: 700;
sans:400=Regular,700=Bold
*/

/* PC */
#header {
  width: 100%;
  height: 200px;
}

#header h1 {
  float: left;
  width: 270px;
  height: 120px;
  font-size: 0;
  margin-left: 30px;
  margin-top: 25px;
  background-image: url(../images/logo_01.png);
  background-size: 100% auto;
  background-repeat: no-repeat;
}

#menu nav {
  float: right;
  width: 200px;
  height: 200px;
  text-align: center;
  background: #01a89b;
  border-radius: 0 0 0 100%;
}

#menu nav ul {
  width: 200px;
}

#menu nav ul li {
  padding-top: 25px;
  padding-left: 80px;
  padding-right: 40px;
}

#menu nav ul li a {
  font-size: 22px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 400;
  text-decoration: none;
}

#menu nav ul li a:hover {
  color: #fff;
}

#keyview {
  clear: both;
  margin-top: 90px;
}

.key_title {
  position: relative;
  text-align: center;
  width: 1200px;
  margin: 0 auto;
}

.key_title h2 {
  position: relative;
  display: inline-block;
  font-size: 115px;
  line-height: 1em;
  font-family: "Baskerville";
  font-weight: 400;
}

.key_title span {
  position: relative;
  z-index: 1;
  font-size: 115px;
  line-height: 1em;
  font-family: "Baskerville";
  font-weight: 400;
  color: #fff;
}

.circle_key {
  position: absolute;
  top: 20%;
  left: 50%;
  width: 250px;
  height: 250px;
  background-color: #484848;
  border-radius: 50%;
  transform: translate(-30%, -50%);
  z-index: 0; /* .targetの下に表示 */
}

.circle_key p {
  display: none;
}

.key_box {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9; /* 画面幅に応じて高さを自動調整 */
  overflow: hidden;
  z-index: 1;
  min-width: 1200px;
}

.key_txt {
  position: absolute;
  z-index: 1;
  width: 100%;
  top: 380px;
  left: 50%;
  transform: translate(-50%, -50%);
}

.key_img {
  position: absolute;
  z-index: 0;
  width: 100%;
}

.key_img img {
  width: 100%;
}

.key_txt p {
  font-size: 27px;
  line-height: 1.8em;
  font-family: "游明朝体";
  font-weight: 400;
  text-align: center;
  color: #fff;
}
.key_sub{
  display: block;
  width: 680px;
  border-radius: 30px;
  margin: 20% auto 0;
  padding: 10px 10px 10px;
  background-color: rgba(255, 255, 255, 0.8);
  display: block;
  font-size: 20px;
  line-height: 1.8em;
  font-family: "游明朝体";
  font-weight: 400;
  text-align: center;
  color: #2b2b2b;
}

#product {
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.product-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* 背景なので後ろに配置 */
  background-image: linear-gradient(
      rgba(43, 43, 43, 0.54),
      rgba(43, 43, 43, 0.54)
    ),
    url(../images/nagano_bg.jpg);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 1s ease;
}

.product-bg.visible {
  opacity: 0;
}

#product_wrap {
  display: flex;
}

.product_01 {
  display: flex;
  flex: 0 0 100vw;
}

.product_01_English {
  flex: 0 0 50vw;
}

.product_box_01 {
  width: 355px;
  height: 405px;
  margin: 300px 0 100px 150px;
  background-color: #fff;
  border-radius: 10%;
  opacity: 0;
  transform: rotateY(0deg);
  transition: transform 1s ease, opacity 1s ease;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.product_box_01.visible {
  opacity: 1;
  transform: rotateY(360deg);
}

.product_box_01 h3 {
  width: 170px;
  margin: 0 auto 200px;
  padding-top: 30px;
  font-size: 43px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 400;
}

.product_box_01 p {
  padding-left: 20px;
  padding-right: 30px;
  font-size: 16px;
  line-height: 2em;
  font-family: "游明朝体";
  font-weight: 400;
}

.product_01_Jp {
  flex: 0 0 50vw;
  white-space: normal;
}

.product_01_Jp h4 {
  margin-right: 50px;
  padding-top: 100px;
  padding-bottom: 100px;
  font-size: 36px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 400;
  color: #fff;
}

.product_01_Jp p {
  margin-right: 50px;
  font-size: 27px;
  line-height: 1.5em;
  font-family: "游明朝体";
  font-weight: 400;
  color: #fff;
}

.product_02 {
  display: flex;
  flex: 0 0 100vw;
  /* flex-direction: row-reverse; */
}

.product_02_English {
  flex: 0 0 50vw;
}

.product_box_02 {
  width: 355px;
  height: 405px;
  margin: 300px auto 100px;
  background-color: #fff;
  border-radius: 10%;
  opacity: 0;
  transform: rotateY(0deg);
  transition: transform 1s ease, opacity 1s ease;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.product_box_02.visible {
  opacity: 1;
  transform: rotateY(360deg);
}

.product_box_02 h3 {
  width: 170px;
  margin: 0 auto 200px;
  padding-top: 30px;
  font-size: 43px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 400;
}

.product_box_02 p {
  padding-left: 25px;
  font-size: 16px;
  line-height: 2em;
  font-family: "游明朝体";
  font-weight: 400;
}

.product_02_Jp {
  flex: 0 0 50vw;
  white-space: normal;
}

.product_02_Jp h4 {
  margin-left: 50px;
  padding-top: 100px;
  padding-bottom: 100px;
  font-size: 36px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 400;
  color: #fff;
}

.product_02_Jp p {
  margin-right: 50px;
  font-size: 27px;
  line-height: 1.5em;
  font-family: "游明朝体";
  font-weight: 400;
  color: #fff;
}

#project {
  position: relative;
  clear: both;
  padding-top: 50px;
  padding-bottom: 200px;
}

.circle_project {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 1s ease-out, transform 1s ease-out;
}

.circle_project.visible {
  opacity: 1;
  transform: scale(1);
}

.circle_project01 {
  position: absolute;
  z-index: 0;
  top: 0;
  left: -10vw;
  width: 60vw;
  height: 60vw;
  max-width: 770px;
  max-height: 770px;
  background-color: #01a89b;
  border-radius: 50%;
}

.circle_project01 p {
  display: none;
}

.circle_project02 {
  position: absolute;
  z-index: 0;
  top: 3vw;
  left: 48vw;
  width: 22vw;
  height: 22vw;
  max-width: 300px;
  max-height: 300px;
  background-color: #01a89b;
  border-radius: 50%;
}

.circle_project02 p {
  display: none;
}

.circle_project03 {
  position: absolute;
  z-index: 0;
  top: 10vw;
  left: 80vw;
  width: 8vw;
  height: 8vw;
  max-width: 100px;
  max-height: 100px;
  background-color: #01a89b;
  border-radius: 50%;
}

.circle_project03 p {
  display: none;
}

.project_cont_img h3 {
  margin-right: 90px;
  font-size: 82px;
  line-height: 1.2em;
  font-family: "游明朝体";
  font-weight: 400;
  text-align: right;
}

.project_cont {
  position: relative;
  z-index: 1;
}

.project_cont_img ul {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 40px;
}

.project_cont_img ul li {
  padding-left: 35px;
  padding-right: 35px;
}

.project_cont_img ul li img {
  width: 100%;
  height: auto;
  max-width: 400px;
  object-fit: cover;
}

.project_cont_img ul li:nth-child(1) img {
  margin-top: 80px;
}

.project_cont_img ul li:nth-child(2) img {
  margin: 0;
}

.project_cont_img ul li:nth-child(3) img {
  margin-top: 80px;
}

.project_cont_txt {
  margin-top: 20px;
}

.project_cont_txt ul li {
  margin-left: 80px;
  padding-left: 1em;
  text-indent: -1em;
  font-size: 24px;
  line-height: 1.8em;
  font-family: "游明朝体";
  font-weight: 400;
  text-align: left;
}

#education {
  position: relative;
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease 0.6s, transform 0.8s ease 0.6s;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.education_txt img {
  width: 100%;
  max-width: 590px;
  height: auto;
  margin-left: 15px;
}

.education_cont {
  width: 700px;
  margin: 0 auto;
  text-align: center;
  transition: opacity 0.8s ease 0.8s, transform 0.8s ease 0.8s;
}

.education_cont h3 {
  margin-bottom: 40px;
  font-size: 28px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 400;
}

.education_cont p {
  font-size: 20px;
  line-height: 2em;
  font-family: "游明朝体";
  font-weight: 400;
}

.education_img {
  position: absolute;
  top: -100px;
  right: -150px;
  transform: rotate(5deg);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(50px) rotate(5deg);
  transition: opacity 0.8s ease 1s, transform 0.8s ease 1s;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0) rotate(5deg);
}

#partnership {
  width: 750px;
  margin: 230px auto 0;
  text-align: center;
}

.partnership_cont h3 {
  font-size: 82px;
  line-height: 1.5em;
  font-family: "游明朝体";
  font-weight: 400;
}

.partnership_cont a {
  font-size: 25px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 400;
  text-decoration: none;
}

#footer {
  position: relative;
  width: 100%;
  height: 800px;
  margin-bottom: 75px;
}

.circle_footer {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 1s ease-out, transform 1s ease-out;
}

.circle_footer.visible {
  opacity: 1;
  transform: scale(1);
}

.circle_footer01 {
  position: absolute;
  top: 300px;
  left: 20%;
  width: 7.3vw;
  height: 7.3vw;
  background-color: #000000;
  border-radius: 50%;
}

.circle_footer01 p {
  display: none;
}

.circle_footer02 {
  position: absolute;
  top: 225px;
  left: 35%;
  width: 10.98vw;
  height: 10.98vw;
  background-color: #4b4b4b;
  border-radius: 50%;
}

.circle_footer02 p {
  display: none;
}

.circle_footer03 {
  position: absolute;
  top: 700px;
  left: 45%;
  width: 7.3vw;
  height: 7.3vw;
  background-color: #888888;
  border-radius: 50%;
}

.circle_footer03 p {
  display: none;
}

.circle_footer04 {
  position: absolute;
  top: 600px;
  left: 60%;
  width: 10.98vw;
  height: 10.98vw;
  background-color: #cecece;
  border-radius: 50%;
}

.circle_footer04 p {
  display: none;
}

.footer_cont {
  display: flex;
  height: 450px;
  padding-top: 350px;
}

.footer_cont p {
  width: 500px;
  margin-left: 20px;
  padding-top: 205.5px;
  color: #2b2b2b;
  font-size: 39px;
  line-height: 1em;
  font-family: "游明朝体";
  font-weight: 200;
  flex-grow: 1;
}

.footer_cont nav {
  display: flex;
  justify-content: right;
  align-items: center;
  width: 225px;
  height: 450px;
  padding-right: 30px;
  text-align: center;
  border: 4px solid #000;
  border-right: none;
  border-top-left-radius: 225px;
  border-bottom-left-radius: 225px;
  box-sizing: border-box;
}

.footer_cont nav::before {
  content: "";
  position: absolute;
  right: 0;
  width: calc(225px - 4px);
  height: calc(450px - 8px);
  border: 1px solid #707070;
  border-right: none;
  border-top-left-radius: 221px; /* 外枠より小さく */
  border-bottom-left-radius: 221px;
  pointer-events: none; /* 擬似要素をクリックの邪魔にしない */
  box-sizing: border-box;
}

.footer_cont nav ul li {
  font-size: 22px;
  line-height: 2.5em;
  font-family: "游明朝体";
  font-weight: 400;
}

.footer_cont nav ul li a {
  text-decoration: none;
  font-family: "游明朝体";
}

.footer_cont nav ul li a:hover {
  color: #01a89b;
}

/* ここからフィードインのための処理 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* タブレット */
@media (min-width: 767px) and (max-width: 1200px) {
  #product_wrap {
    width: calc(100% - 30px);
    margin: 0 auto;
  }

  .key_title {
    position: relative;
    text-align: center;
    width: 767px;
    margin: 0 auto;
  }

  .key_title h2 {
    position: relative;
    display: inline-block;
    font-size: 75px;
    line-height: 1em;
    font-family: "Baskerville";
    font-weight: 400;
  }

  .key_title span {
    position: relative;
    z-index: 1;
    font-size: 75px;
    line-height: 1em;
    font-family: "Baskerville";
    font-weight: 400;
    color: #fff;
  }
  .key_box{
    min-width: 768px;
  }
  .key_sub{

    margin: 10% auto 0;
  }
  .key_txt {
    position: absolute;
    z-index: 1;
    width: 100%;
    top: 300px;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .circle_key {
    position: absolute;
    top: 20%;
    left: 50%;
    width: 160px;
    height: 160px;
    background-color: #484848;
    border-radius: 50%;
    transform: translate(-30%, -50%);
    z-index: 0; /* .targetの下に表示 */
  }

  .product_01 {
    display: flex;
    padding-top: 60px;
  }

  .product_box_01 {
    width: 340px;
    height: 400px;
    margin: 0 auto;
    background-color: #fff;
    border-radius: 10%;
  }

  .product_box_01 h3 {
    width: 130px;
    margin: 0 auto 200px;
    padding-top: 20px;
    font-size: 36px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  .product_box_01 p {
    padding-left: 10px;
    padding-right: 10px;
    font-size: 18px;
    line-height: 2em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
  }

  .product_01_Jp {
    width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .product_01_Jp h4 {
    padding: 0;
    font-size: 28px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    color: #fff;
    text-align: left;
  }

  .product_01_Jp p {
    padding-top: 30px;
    font-size: 16px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    color: #fff;
  }

  .product_02 {
    display: flex;
    padding-top: 60px;
    padding-bottom: 60px;
  }

  .product_box_02 {
    width: 340px;
    height: 400px;
    float: none;
    margin: 0 auto;
    background-color: #fff;
    border-radius: 10%;
  }

  .product_box_02 h3 {
    width: 130px;
    margin: 0 auto 200px;
    padding-top: 20px;
    font-size: 36px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  .product_box_02 p {
    padding-left: 10px;
    padding-right: 10px;
    font-size: 18px;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
  }

  .product_02_Jp {
    width: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .product_02_Jp h4 {
    padding: 0;
    font-size: 28px;
    font-family: "游明朝体";
    font-weight: 400;
    color: #fff;
    text-align: left;
  }

  .product_02_Jp p {
    padding-top: 30px;
    font-size: 16px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    color: #fff;
  }

  #project {
    position: relative;
    clear: both;
    padding-top: 30px;
    padding-bottom: 100px;
  }

  .project_cont_img h3 {
    margin-right: 50px;
    font-size: 60px;
    line-height: 1.2em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: right;
  }

  .project_cont_txt ul li {
    padding-left: 1em;
    text-indent: -1em;
    margin-left: 35px;
    font-size: 18px;
    line-height: 2em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  #education {
    position: relative;
    width: calc(100% - 20px);
    margin: 0 auto;
  }

  .education_txt img {
    display: block;
    width: 100%;
    max-width: 500px;
    height: auto;
    margin: 0 auto;
  }

  .education_cont {
    width: 700px;
    margin: 0 auto;
    text-align: center;
  }

  .education_cont h3 {
    margin-bottom: 40px;
    font-size: 24px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  .education_cont p {
    font-size: 18px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
  }

  .education_img {
    position: absolute;
    top: -40px;
    right: -200px;
    transform: rotate(0deg); /* ← 角度を変える */
  }

  .education_img img {
    width: 50%;
    height: auto;
  }

  #partnership {
    width: 700px;
    margin: 150px auto 0;
    text-align: center;
  }

  .partnership_cont h3 {
    font-size: 60px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  .partnership_cont a {
    font-size: 20px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    text-decoration: none;
  }

  #footer {
    position: relative;
    width: 100%;
    height: 550px;
    margin-bottom: 50px;
  }

  .circle_footer01 {
    position: absolute;
    top: 150px;
    left: 10%;
    width: 7.3vw;
    height: 7.3vw;
    background-color: #000000;
    border-radius: 50%;
  }

  .circle_footer02 {
    position: absolute;
    top: 100px;
    left: 25%;
    width: 10.98vw;
    height: 10.98vw;
    background-color: #4b4b4b;
    border-radius: 50%;
  }

  .circle_footer03 {
    position: absolute;
    top: 500px;
    left: 45%;
    width: 7.3vw;
    height: 7.3vw;
    background-color: #888888;
    border-radius: 50%;
  }

  .circle_footer04 {
    position: absolute;
    top: 450px;
    left: 60%;
    width: 10.98vw;
    height: 10.98vw;
    background-color: #cecece;
    border-radius: 50%;
  }

  .footer_cont {
    display: flex;
    height: 225px;
    padding-top: 150px;
  }

  .footer_cont p {
    width: 500px;
    margin-left: 20px;
    padding-top: 185.5px;
    font-size: 32px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    flex-grow: 1;
  }

  .footer_cont nav {
    display: flex;
    justify-content: right;
    align-items: center;
    width: 200px;
    height: 400px;
    padding-right: 30px;
    text-align: center;
    border: 4px solid #000;
    border-right: none;
    border-top-left-radius: 200px;
    border-bottom-left-radius: 200px;
    box-sizing: border-box;
  }

  .footer_cont nav::before {
    content: "";
    position: absolute;
    right: 0;
    width: calc(200px - 4px);
    height: calc(400px - 8px);
    border: 1px solid #707070;
    border-right: none;
    border-top-left-radius: 196px; /* 外枠より小さく */
    border-bottom-left-radius: 196px;
    pointer-events: none; /* 擬似要素をクリックの邪魔にしない */
    box-sizing: border-box;
  }
  .footer_cont nav li a{
    font-family: "游明朝体";
  }
}

/*スマホ*/
@media (max-width: 767px) {
  #header {
    height: 150px;
  }
  #header h1 {
    float: left;
    width: 150px;
    height: 50px;
    font-size: 0;
    margin-left: 10px;
    margin-top: 20px;
    background-image: url(../images/logo_01.png);
    background-size: 100% auto;
    background-repeat: no-repeat;
  }

  #menu nav {
    float: right;
    width: 120px;
    height: 130px;
    text-align: center;
    background: #0497aa;
    border-radius: 0 0 0 90%;
  }

  #menu nav ul {
    width: 130px;
  }
  #menu nav ul li {
    padding-top: 10px;
    padding-left: 35px;
    padding-right: 15px;
  }

  #menu nav ul li a {
    font-size: 16px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    text-decoration: none;
  }

  #keyview {
    clear: both;
    margin-top: 150px;
  }

  .key_title {
    position: relative;
    text-align: center;
    width: 375px;
    margin: 0 auto;
  }

  .key_title h2 {
    position: relative;
    display: inline-block;
    font-size: 35px;
    line-height: 1em;
    font-family: "Baskerville";
    font-weight: 400;
  }

  .key_title span {
    position: relative;
    z-index: 1;
    font-size: 35px;
    line-height: 1em;
    font-family: "Baskerville";
    font-weight: 400;
    color: #fff;
  }

  .circle_key {
    position: absolute;
    top: 20%;
    left: 50%;
    width: 73px;
    height: 73px;
    background-color: #484848;
    border-radius: 50%;
    transform: translate(-30%, -50%);
    z-index: 0; /* .targetの下に表示 */
  }
  .key_txt {
    position: absolute;
    z-index: 1;
    width: 100%;
    top: 65px;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .key_txt p {
    margin-top: 200px;
    font-size: 15px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
    color: #fff;
  }
  .key_sub{
    display: block;
    width: calc(100% - 40px);
    margin: 100px auto 0;
    padding: 10px 10px 10px;
    background-color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
    color: #2b2b2b;
  }
  .key_box {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 16; /* 画面幅に応じて高さを自動調整 */
    overflow: hidden;
    z-index: 1;
    min-width: 0;
  }
  .key_img {
    position: absolute;
    z-index: 0;
    width: 100%;
    height: 700px;
  }

  .key_img img {
    width: 200%;
    height: auto;
  }

  .product_01 {
    display: flex;
    flex-direction: column;
  }

  .product_01_English {
    width: 100%;
    margin: 0 auto;
  }

  .product_box_01 {
    width: calc(100% - 40px);
    height: 140px;
    margin: 60px auto 0;
    background-color: #fff;
    border-radius: 15px;
  }

  .product_box_01 h3 {
    width: 100px;
    margin: 0 auto;
    padding-top: 10px;
    font-size: 28px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  .product_box_01 p {
    padding-left: 20px;
    padding-right: 20px;
    font-size: 16px;
    line-height: 2em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
  }

  .product_01_Jp {
    width: 100%;
    margin-top: 35px;
    margin-bottom: 100px;
  }

  .product_01_Jp h4 {
    width: calc(100% - 40px);
    margin: 0 auto;
    padding: 0;
    font-size: 28px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    color: #fff;
    text-align: center;
  }

  .product_01_Jp p {
    width: calc(100% - 40px);
    margin: 0 auto;
    padding-top: 30px;
    font-size: 16px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    color: #fff;
  }

  .product_02 {
    display: flex;
    padding-left: 30px;
    flex-direction: column;
  }
  .product_02:last-child{
    padding-right: 10px;
  }

  .product_02_English {
    width: 100%;
    margin: 0 auto;
    display: block;
  }

  .product_box_02 {
    width: calc(100% - 40px);
    height: 140px;
    float: none;
    margin: 60px auto 0;
    background-color: #fff;
    border-radius: 15px;
  }

  .product_box_02 h3 {
    width: 100px;
    margin: 0 auto;
    padding-top: 10px;
    font-size: 28px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  .product_box_02 p {
    padding-left: 20px;
    padding-right: 20px;
    font-size: 16px;
    line-height: 2em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
  }

  .product_02_Jp {
    width: 100%;
    margin-top: 35px;
    margin-bottom: 100px;
    margin-left: 0;
  }

  .product_02_Jp h4 {
    width: calc(100% - 40px);
    margin: 0 auto;
    padding: 0;
    font-size: 28px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: center;
  }

  .product_02_Jp p {
    width: calc(100% - 40px);
    margin: 0 auto;
    padding-top: 30px;
    font-size: 16px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    color: #fff;
  }

  #project {
    position: relative;
    clear: both;
    padding: 0;
  }

  .circle_project01 {
    position: absolute;
    z-index: 0;
    top: 20vw;
    left: 2vw;
    width: 35vw;
    height: 35vw;
    min-width: 110px;
    min-height: 110px;
    background-color: #01a89b;
    border-radius: 50%;
  }

  .circle_project02 {
    position: absolute;
    z-index: 0;
    top: 25vw;
    left: 40vw;
    width: 17vw;
    height: 17vw;
    min-width: 55px;
    min-height: 55px;
    background-color: #01a89b;
    border-radius: 50%;
  }

  .circle_project03 {
    position: absolute;
    z-index: 0;
    top: 35vw;
    left: 60vw;
    width: 7vw;
    height: 7vw;
    min-width: 20px;
    min-height: 20px;
    background-color: #01a89b;
    border-radius: 50%;
  }

  .project_cont {
    position: relative;
    z-index: 1;
    width: calc(100% - 20px);
    margin: 0 auto;
  }

  .project_cont_img {
    padding-top: 40vw;
  }

  .project_cont_img h3 {
    margin-right: 5vw;
    font-size: 28px;
    line-height: 1.2em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: right;
  }

  .project_cont_img ul {
    flex-direction: column;
    gap: 0;
    margin-top: 50px;
  }

  .project_cont_img ul li {
    padding: 0;
  }

  .project_cont_img ul li img {
    width: 100%;
    height: auto;
    max-width: 767px;
    object-fit: cover;
  }

  .project_cont_img ul li:nth-child(1) img {
    margin: 0;
  }

  .project_cont_img ul li:nth-child(2) img {
    margin: 0;
  }

  .project_cont_img ul li:nth-child(3) img {
    margin-top: 0;
  }

  .project_cont_txt {
    width: calc(100% - 20px);
    margin: 0 auto;
  }

  .project_cont_txt ul li {
    margin: 0;
    padding-left: 1em;
    text-indent: -1em;
    font-size: 16px;
    line-height: 2em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: left;
  }

  #education {
    position: relative;
    width: calc(100% - 20px);
    margin: 130px auto 0;
  }

  #education::before {
    content: "";
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    min-width: 575px;
    min-height: 575px;
    background-color: #01a89b;
    border-radius: 50%;
    z-index: -1;
  }

  .education_txt {
    margin-bottom: 75px;
  }

  .education_txt img {
    display: block;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    height: auto;
  }

  .education_cont {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
    text-align: left;
  }

  .education_cont h3 {
    margin-bottom: 20px;
    font-size: 22px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
  }

  .education_cont p {
    font-size: 16px;
    line-height: 1.5em;
    font-family: "游明朝体";
    font-weight: 400;
    text-align: left;
  }

  .education_img {
    position: absolute;
    top: -40px;
    right: -320px;
    transform: rotate(0deg); /* ← 角度を変える */
  }

  .education_img img {
    width: 50%;
    height: auto;
  }

  #partnership {
    width: calc(100% - 20px);
    margin: 200px auto 150px;
    text-align: center;
  }

  .partnership_cont h3 {
    font-size: 40px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    margin-bottom: 20px;
  }

  .partnership_cont a {
    display: block;
    max-width: 310px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    text-decoration: none;
  }

  #footer {
    position: relative;
    width: 100%;
    height: 430px;
    margin-bottom: 130px;
  }

  .circle_footer01 {
    position: absolute;
    top: 150px;
    left: 5%;
    width: 14vw;
    height: 14vw;
    max-width: 70px;
    max-height: 70px;
    background-color: #000000;
    border-radius: 50%;
  }

  .circle_footer02 {
    position: absolute;
    top: 100px;
    left: 25%;
    width: 24vw;
    height: 24vw;
    max-width: 120px;
    max-height: 120px;
    background-color: #4b4b4b;
    border-radius: 50%;
  }

  .circle_footer03 {
    position: absolute;
    top: 450px;
    left: 30%;
    width: 14vw;
    height: 14vw;
    max-width: 70px;
    max-height: 70px;
    background-color: #888888;
    border-radius: 50%;
  }

  .circle_footer04 {
    position: absolute;
    top: 400px;
    left: 50%;
    width: 24vw;
    height: 24vw;
    max-width: 140px;
    max-height: 140px;
    background-color: #cecece;
    border-radius: 50%;
  }

  .footer_cont {
    display: flex;
    height: 250px;
    padding-top: 165px;
  }

  .footer_cont p {
    width: 150px;
    margin-left: 10px;
    padding-top: 130px;
    font-size: 16px;
    line-height: 1em;
    font-family: "游明朝体";
    font-weight: 400;
    flex-grow: 1;
  }

  .footer_cont nav {
    display: flex;
    justify-content: right;
    align-items: center;
    width: 120px;
    height: 240px;
    padding-right: 10px;
    text-align: center;
    border: 2px solid #000;
    border-right: none;
    border-top-left-radius: 130px;
    border-bottom-left-radius: 130px;
    box-sizing: border-box;
  }

  .footer_cont nav::before {
    content: "";
    position: absolute;
    right: 0;
    width: calc(120px - 2px);
    height: calc(240px - 4px);
    border: 1px solid #707070;
    border-right: none;
    border-top-left-radius: 128px; /* 外枠より小さく */
    border-bottom-left-radius: 128px;
    pointer-events: none; /* 擬似要素をクリックの邪魔にしない */
    box-sizing: border-box;
  }

  .footer_cont nav ul li a{
    font-size: 18px;
    line-height: 2em;
    font-family: "游明朝体";
    font-weight: 400;
  }
}

@media (max-width: 767px) and (orientation: landscape) {
  /*  */
  .key_box {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10; /* 画面幅に応じて高さを自動調整 */
    overflow: hidden;
    z-index: 1;
  }
  .key_img {
    position: absolute;
    z-index: 0;
    width: 100%;
    height: 400px;
  }

  .key_img img {
    width: 200%;
    height: auto;
  }
  .product_01_Jp {
    width: 100%;
    margin-top: 10px;
    margin-bottom: 50px;
  }
  .product_01_English {
    flex: 0 0 0vw;
  }
  .product_box_01 {
    width: calc(100% - 40px);
    height: 140px;
    float: none;
    margin: 10px auto 0;
    background-color: #fff;
    border-radius: 15px;
  }
  .product_01_Jp br{
    display: none;
  }
  .product_02_Jp {
    width: 100%;
    margin-top: 10px;
    margin-bottom: 50px;
  }
  .product_02_English {
    flex: 0 0 0vw;
  }
  .product_box_02 {
    width: calc(100% - 40px);
    height: 140px;
    float: none;
    margin: 10px auto 0;
    background-color: #fff;
    border-radius: 15px;
  }
  .product_02_Jp br{
    display: none;
  }
}