:root {
  --mainColor: #005149;
  --subColor: #A8BD38;
  --accentColor: #D9DC41;
  --textColor: #002724;
  --bgColor: #FEFFFD;
  --gray: #C5C5C5;
}


/*-----------------------------*/ 
/* loading */ 
/*-----------------------------*/
#loading-screen {
  position: fixed;
  width: 100%;
  height: 100vh;
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  font-weight: bold;
  transition: opacity 1s ease-out;
  z-index: 9999;
}

#loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.loading__container img {
  width: 80vw;
  max-width: 416px;
  height: auto;
}

.loading__container p {
  font-family: "LINE Seed JP";
  letter-spacing: 0.06em;
  font-size: clamp(0.875rem, 0.731rem + 0.64vw, 1.5rem);
  color: var(--subColor);
}

/*-----------------------------*/ 
/* メインビジュアル */ 
/*-----------------------------*/
main {
  width: 100%;
  padding: 0 7%;
}

.main__visual {
  display: block;
  position: relative;
}

.main__visual-text {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.main__visual-text br:first-of-type {
  display: none;
}

.main__visual-text p {
color: var(--mainColor);
font-weight: bold;
font-size: clamp(1.5rem, 0.462rem + 4.62vw, 6rem);
margin-block: 11.625rem;
line-height: 140%;
letter-spacing: 0.04em;
position: relative;
}

.main__visual-text p::after {
  content: "";
  display: inline-block;
  width: 1.5rem;
  height: 100%;
  position: absolute;
  right: -5rem;
  top: .5rem;
  background: var(--subColor);
  transform: skewX(-36deg);
}

.main__visual-text img {
  height: 100%;
}

.main__visual-text p span {
  color: var(--subColor);
}

.main__visual-sns {
  position: absolute;
  right: -5%;
  top: 4.65625rem;
  display: flex;
  gap: 1rem;
  flex-direction: column;
  align-items: center;
}

.main__visual-sns span {
  writing-mode: vertical-lr;
  font-family: 'LINE Seed JP';
  font-size: clamp(0.875rem, 0.731rem + 0.64vw, 1.5rem);
  font-weight: bold;
  color: var(--mainColor);
}

.main__visual-sns img {
  width: 100%;
  max-width: 24px;
}

.main__visual-img {
  width: 100%;
  height: auto;
  max-height: 800px;
  border-radius: 1rem;
}

@media (max-width: 1200px) {
  main {
    padding: 0 4%;
  }

  .main__visual-text p {
    margin-block: 5.625rem;
  }

  .main__visual-sns {
    display: none;
  }
}

@media (max-width: 769px) {
  .main__visual-img {
    height: 480px;
    object-fit: cover;
    object-position: center;
  }

  .main__visual-text br:first-of-type {
    display: block;
  }

  .main__visual-text p {
    margin-block: 3rem;
  }

  .main__visual-text p::after {
    width: .75rem;
    right: -5rem;
    top: .5rem;
  }
}


/*yamamoto 20251010追加*/
p.linktag a {
  padding:15px;
}

/*-----------------------------*/ 
/* news */ 
/*-----------------------------*/
.news {
  width: 100%;
  background-image: linear-gradient(
    40deg,
    rgba(0, 81, 73, 1) 43%,
    rgba(53, 115, 71, 1) 66%, 
    rgba(126, 162, 68, 1) 84%,
    rgba(217, 220, 65, 1));
  border-radius: 1rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 6rem 5%;
  margin-top: 5.5rem;
  margin-bottom: 16.625rem;
}

.news__container {
  max-width: 287px;
  display: flex;
  flex-direction: column;
}

.news__container h2 {
  font-family: 'LINE Seed JP';
  font-size: clamp(1rem, 0.769rem + 1.03vw, 2rem);
  font-weight: bold;
  color: var(--subColor);
  margin-bottom: 3.5rem;
}

.news__container p {
  font-size: clamp(0.813rem, 0.769rem + 0.19vw, 1rem);
  color: #fff;
  line-height: 180%;
  letter-spacing: 0.08em;
  margin-bottom: 4.5rem;
}

.news__container-info {
  padding-left: 0;
  max-width: 812px;
}

.news__list {
  display: flex;
  margin-bottom: .5rem;
  background-color: var(--bgColor);
  padding: 1.5rem;
  border-radius: .5rem;
  cursor: pointer;
  min-width: 540px;
  max-width: 100%;
}

@media (min-width: 768px) {
  .news__list {
    height: 232px;
    overflow: hidden;
  }
}

.news__list:hover {
  opacity: 0.9;
}

.news__list:last-of-type {
  margin-bottom: 0;
}

.news__desc {
  padding: 1rem;
  overflow: hidden;
}

.news_title {
  margin: 0;
  font-size: clamp(1rem, 0.946rem + 0.24vw, 1.125rem);
  line-height: 180%;
  color: var(--subColor);
  font-weight: bold;
  margin-bottom: 1.5rem;
}

.news_lead {
  margin: 0;
  font-size: clamp(0.813rem, 0.732rem + 0.36vw, 1rem);
  line-height: 180%;
  color: var(--textColor);
}

.news_text {
  display: none;
}

.news_thumb img {
  max-width: 298px;
  height: 100%;
  border-radius: 6px;
}


/* slide-panel */
.modal-btn {
  display: flex;
  justify-content: flex-end;
  padding: 10px 20px;
  font-size: 16px;
  color: var(--textColor);
  border: none;
  border-radius: 3rem;
  cursor: pointer;
  margin-bottom: 2rem;
}

.slide-panel-close {
  display: flex;
  justify-content: flex-end;
}

.slide-panel {
  z-index: 10000;
  position: fixed;
  top: 0;
  right: -45vw;
  width: 45vw;
  height: 100%;
  background-color: #fff;
  box-shadow: -2px 0 5px rgba(0, 0, 0, 0.2);
  padding: 2rem;
  transition: right 0.3s ease;
  overflow: scroll;
}

.slide-panel.is-visible {
  right: 0; /* 横にスライドイン */
}

.slide-panel h3 {
  font-size: clamp(1.5rem, 1.071rem + 1.9vw, 2.5rem);
  font-weight: bold;
  color: var(--mainColor);
  letter-spacing: 0.06em;
  line-height: 160%;
  margin-bottom: 2rem;
}

.slide-panel-thumb img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  margin-bottom: 3.5rem;
  border-radius: 1rem;
}

.slide-panel-text {
  font-size: clamp(0.813rem, 0.679rem + 0.6vw, 1.125rem);
  line-height: 180%;
  letter-spacing: 0.08em;
  color: var(--textColor);
}


@media (max-width: 1200px) {
  .news {
    flex-wrap: wrap;
    gap: 5rem;
    padding: 3rem 4%;
    margin-bottom: 6.5rem;
  }

  .news__container-info  {
    padding-left: 0;
    max-width: 100%;
  }

  .slide-panel {
    padding: 1rem;
    width: 70vw;
    right: -70vw;
  }
}

@media (max-width: 768px) {
.news {
  padding: 3rem 4% 2rem;
}

  .news__container h2 {
    margin-bottom: 1.5rem;
  }

  .news__container p {
    margin-bottom: 2.5rem;
  }

  .news__container-info  {
    flex-direction: column;
    margin-bottom: 0;
  }

  .news__list {
    display: flex;
    flex-direction: column;
    min-width: 100%;
    margin-bottom: 1rem;
  }

  .news__desc {
    padding: 1rem 0;
  }

  .news_thumb img {
    width: 100%;
    max-width: 100%;
  }

  .slide-panel {
    padding: 1rem;
    width: 90vw;
    right: -90vw;
  }
}


/*-----------------------------*/ 
/* about us, lecture&tour */ 
/*-----------------------------*/
.aboutUs {
  margin-bottom: 4.5rem;
}

.container-fluid {
  display: flex;
  gap: 2vw;
}

.container-fluid img {
  width: min(880px,100%);
  height: auto;
  border-radius: .5rem;
}

.container__text div {
  margin-bottom: 2.5rem;
}

.container__text h2 {
  font-family: 'LINE Seed Jp';
  font-size: clamp(1rem, 0.769rem + 1.03vw, 2rem);
  font-weight: bold;
  color: var(--subColor);
  margin-bottom: 3.5rem;
}

.container__text p {
  font-size: clamp(1.5rem, 1.269rem + 1.03vw, 2.5rem);
  font-weight: bold;
  color: var(--mainColor);
  line-height: 160%;
  margin-bottom: 2.5rem;
}


.lectureAndtour {
  margin-bottom: 12.5rem;
}

@media (max-width: 1200px) {
  .aboutUs {
    margin-bottom: 5.5rem;
  }

  .container-fluid {
    gap: 3rem;
    flex-wrap: wrap;
  }

  .aboutUs > .container-fluid {
    flex-wrap: wrap-reverse;
  }

  .container-fluid img {
    width: 100%;
  }

  .container__text h2 {
    margin-bottom: 1.5rem;
  }

  .container__text p:first-of-type {
    margin-bottom: 1rem;
  }
  
  .container__text p:last-of-type {
    margin-bottom: 2rem;
  }
}


/*-----------------------------*/ 
/* service */ 
/*-----------------------------*/
.service h2 {
  width: 100%;
  display: block;
  text-align: center;
  font-family: 'LINE Seed JP';
  font-size: clamp(1rem, 0.769rem + 1.03vw, 2rem);
  font-weight: bold;
  color: var(--subColor);
  margin-bottom: 3.5rem;
}


.details {
	border-top: 2px solid #f2f2f2;
  background: #F6F7F2;
}

.details:last-of-type {
  border-bottom: 1px solid #f2f2f2;
}

.details-summary {
	display: flex;
  justify-content: space-between;
  align-items: center;
	padding: 4rem 3.5rem;
	color: var(--mainColor);
	font-size: clamp(1rem, 0.769rem + 1.03vw, 2rem);
	font-weight: bold;
	text-align: center;
	background-color: #F6F7F2;
}

.details-summary h3 {
  font-weight: bold;
  font-size: clamp(1rem, 0.769rem + 1.03vw, 2rem);
}

.details-summary h3 a {
  color: var(--mainColor);
}

.arrow span {
  background-color: transparent;
  border-radius: 50px;
  color: #fff;
  display: inline-block;
  font-size: 20px;
  position: relative;
  text-decoration: none;
  width: 2rem;
}

.arrow span {
  transition: all .5s;
}

details[open] summary .arrow {
  transition: transform 0.4s ease-in-out;
  transform: rotate(90deg);
  transform-origin: center;
}

.arrow span::before {
  border-right: 3px solid var(--mainColor);
  border-top: 3px solid var(--mainColor);
  bottom: 0;
  content: "";
  margin: auto;
  position: absolute;
  right: 0.75rem;
  transform: rotate(45deg);
  transition: all .5s; 
  width: 2rem;
  height: 2rem;
}

.details-summary:before {
    width: 4px;
    height: 18px;
    top: 0;
    left: 7px;
}
    
.details-summary.is-active.btn {
  -webkit-transform: rotate(-180deg);
  transform: rotate(-180deg);
} 

.details-summary.is-active.btn:before {
  content: none;
}


.details-summary::-webkit-details-marker {
	display: none;
}

.details-content {
  display: flex;
  gap: 3rem;
  padding: 4rem 3.5rem;
}


.details-content-inner:first-of-type {
	display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 3rem;
}

.details-content-inner:last-of-type {
  display: flex;
  justify-content: space-between;
}

.details-content img {
	width: 48%;
  height: auto;
  border-radius: .5rem;
}

.details-content p {
  color: var(--textColor);
  font-size: clamp(0.813rem, 0.769rem + 0.19vw, 1rem);
  line-height: 180%;
  letter-spacing: 0.04em;
}

@media (max-width: 1200px) {
  .details-content {
    flex-wrap: wrap;
  }

  .details-content-inner:first-of-type {
    gap: 2rem;
  }

  .arrow span::before {
    width: 1rem;
    height: 1rem;
  }

  .details-summary {
    padding: 2rem 1.5rem;
  }

  .details-content {
    padding: 0 1.5rem 2rem;
  }
}