/* スクロール時の画像ズームイン */
  @keyframes fadeUp {
    0% {
      transform: translateY(20px);
    }
    100% {
      transform: translateY(0);
    }
  }
  .scroll-up {
    opacity: 0; 
    visibility: hidden;
    transform: translateY(50px);
    transition: all 1s;
  }
  .fade-up {
    opacity: 1;
    visibility: visible;
    animation: fadeUp 1s ease-in-out;
    transform: translateY(0px);
  }
  @media screen and (max-width: 60em) {
    .scroll-up {
      opacity: 1;
      visibility: visible;
      transform: translateY(0px);
    }
  }
  /** オートスライダー */
  .slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-color: transparent;
  }
  .slide-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    animation: fade-slide 60s infinite ease-in-out;
  }
  .slide-0 { animation-delay: 0s; }
  .slide-1 { animation-delay: 10s; }
  .slide-2 { animation-delay: 20s; }
  .slide-3 { animation-delay: 30s; }
  .slide-4 { animation-delay: 40s; }
  .slide-5 { animation-delay: 50s; }
  @keyframes fade-slide {
    0% { opacity: 0; transform: scale(1.1); }
    8% { opacity: 1; }
    17% { opacity: 1; }
    25% { opacity: 0; transform: scale(1); }
    100% { opacity: 0; }
  }
  @media screen and (max-width: 60em) {
    .slider {
      height: 95vh;
    }
  }

  /* セクション */
  .l-section {
    width: 100%;
    position: relative;
    margin: 0 auto;
    padding-top: 80px;
    display: flex;
    flex-direction: column;
    justify-content:center;
    align-items: center;
    z-index: 10;
  }
  @media (min-width: 1024px) {
    .l-section {
      max-width: 90%;
    }
  }
  @media screen and (max-width: 60em) {
    .l-section {
      padding: 0;
    }
  }

  /* セクションメイン */
  .section-main {
    position: relative;
    display: flex;
    width: 106%;    
    padding-bottom: 40%;
  }
  .section-main img {
    position: absolute;
  }
  .section-main-title {
    position: absolute;
    width: 30vw;
  }
  .section-main-title h1 {
    font-weight: 600;
    font-size: 2.5rem;
    overflow-wrap: break-word;
    font-family: "Inter",sans-serif;
  }
  .section-main-title p {
    letter-spacing: .1em;
    line-height: 2;
  }
  .section-main-title dl {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    padding-left: 2em;
    font-size: .9rem;
    margin-block-start: 0.5em;
    margin-block-end: 0.5em;
  }
  .section-main-title dt, .section-main-title dd {
    letter-spacing: .1em;
    line-height: 1.5;
  }
  .section-main-title dt {
    width: 100px;
  }
  .section-main-title dd {
    margin-inline-start: 1em;
    width: 100%;
  }
  .section-main-img {
    border-radius: 5px;
    width: 56vw;
  }
  @media screen and (max-width: 60em) { 
    .section-main {
      position:unset;
      width: 90%;
      padding-bottom: 5%;
    }
    .section-main-title {
      position: unset;
      width: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .section-main img {
      position: unset;
      width: 100%;
    }
    .section-main-title h1 {
      font-size: 1.5rem;
      text-align: center;
    }
    .section-main-title dl {
      padding-left: 0;
    }
    .section-main-title dt {
      width: 20vw;
    }
    .section-main-title dd {
      margin-inline-start: 1em;
      width: 100%;
    }
  }

  /* 画像スライダー */
  .main-photo-slider {
    overflow: hidden;
    display: flex;
    align-items: center;
    height: 400px;
    margin: 50px 0;
  }
  .main-photo-slider img {
    width: 300px;
  }
  .main-photo-slider ul{
    display: flex;
    animation: loop-slide 60s infinite linear 1.5s both;
  }
  .main-photo-slider li {
    transition: all 0.5s;
    margin-right: 30px;
  }
  .main-photo-slider li:last-of-type{
    margin-right: -10px;
  }
  @-webkit-keyframes loop-slide {
    from {
      transform: translateX(0);
    }
    to {
      transform: translateX(-100%);
    }
  }
  @keyframes loop-slide {
    from {
      transform: translateX(0);
    }
    to {
      transform: translateX(-100%);
    }
  }
  @media screen and (max-width: 60em) {
    .main-photo-slider {
      height: 300px;
    }
  }

  /* 項目ボックス */
  .item-box {
    flex-shrink: 0;
    width: 100px;
  }
  .item-box p {
    padding: 0.8em;
    border-radius: 0.5rem;   
    background: var(--stone-8);
    color: var(--stone-0);
    text-align: center;
  }
  .item-caption {
    position: relative;
    text-align: left;
    padding-left: 1em;
  }
  .item-caption::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 100%;
    min-height: 2em;
    background-color: var(--stone-8);
    border-radius: 2px;
  }
  .item-detail {
    width: 100%;
    max-width: 500px;
    min-width: 0;
  }
  @media screen and (max-width: 60em) {
    .item-box {
      width: 90px;
    }
    .item-detail {
      width: 50%;
      min-width: 300px;
    }
  }

  /* 詳細説明 */
  .about-detail {
    display: flex;
    gap: 1em;
    margin-bottom: 1em;
    align-items: center;
    color: var(--stone-9);
  }
  @media screen and (max-width: 60em) {
    .about-detail {
      gap: 0.25em;
      margin-bottom: 0.25em;
    }
  }

  /* スケジュール */
  .schedule-title {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    color: var(--stone-9);
    margin: 30px 0 ;
  }
  .schedule-list > li {
    margin-bottom: 50px;
    overflow: hidden;
    margin: 0;
    position: relative;
  }
  .schedule-date {
    width: 110px;
    float: left;
    margin-top: 12px;
  }
  .schedule-content {
    border-left: 2px var(--stone-3) solid;
    padding-left: 30px;
    padding-top: 0;
    padding-bottom: 15px;
    display: flex;
  }
  .schedule-content h3 {
    width: 130px;
    margin-right: 1em;
    margin-block-start: 0.5em;
  }
  .schedule-content:before {
    content: "";
    width: 12px;
    height: 12px;
    background: var(--stone-7);
    position: absolute;
    left: 106px;
    top: 15px;
    border-radius: 100%;
  }
  @media screen and (max-width: 60em) {
    .schedule {
      width: 95%;
    }
    .school-schedule {
      margin-top: 20px;
    }
    .schedule-title {
      flex-direction: column;
      align-items:center;
      justify-content:center;
      gap: 5px;
      margin-bottom: 30px;
    }
    .schedule-title h2,.schedule-title h3, .schedule-title p {
      margin: 0;
      letter-spacing: 0;
      transform: none;
    }
    .schedule-list h2,.schedule-list h3, .schedule-list p {
      margin: 0;
      letter-spacing: 0;
      transform: none;
    }
    .schedule-date {
      width: 80px;
      float: left;
      margin-top: 0;
    }
    .schedule-content {
      padding: 0 20px 20px;
      flex-direction: column;
      align-items:flex-start;
      justify-content: center;
    }
    .schedule-content h3 {
      width: 100%;
      margin-right: 0;
    }
    .schedule-content:before {
      width: 12px;
      height: 12px;
      left: 76px;
      top: 0;
    }
  }

  /* 感想ボックス */
  .thoughts-box {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .thoughts {
    border: solid 2px var(--teal-7);
    border-radius: 5px;
    color: var(--teal-8);
    width: 100%;
    max-width: 650px;
    padding: 20px;
    margin-bottom: 1em;
    line-height: 1.5;
  }
  .thoughts p{
    margin: 0;
    color: var(--teal-8);
  }
  @media screen and (max-width: 60em) {
    .thoughts {
      max-width: 100%;
      padding: 5px;
    }
  }
  /* キャッチフレーズ */
  .main-phrase {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
    display: flex;
    flex-direction: column;
    justify-content:center;
    align-items: center;
    z-index: 20;
    transform: translateY(20px);
    animation: fadeUp 1.4s forwards 1s;
  }
  @media screen and (max-width: 60em) {
    .main-phrase img {
      width: 80%; 
    }
  }

  /* スクロールダウン */
  .scrolldown {
    position: absolute;
    display: flex;
    left: 50px;
    bottom: 50px;
    color: var(--stone-0);
    column-gap: 24px;
    align-items: center;
    z-index: 20;
  }
  .scrolldown p {
    font-size: 1.1rem;
    line-height: 1.2;
    letter-spacing: .03em;
    font-family: "Inter",sans-serif;
    color: var(--stone-0);
    font-variation-settings: "wght" 453;
  }
  .scrolldown div{
      position: relative;
      width: 1px;
      height: 100px;
  }
  .scrolldown span {
      position: absolute;
      top: 0;
      right: 0;
      width:  1px;
      height: 100%;
  }
  @keyframes scroll-line {
      0% {
          transform-origin: top;
          transform: scaleY(0)
      }
      39% {
          transform-origin: top;
          transform: scaleY(1)
      }
      40% {
          transform-origin: bottom;
          transform: scaleY(1)
      }
      100% {
          transform-origin: bottom;
          transform: scaleY(0)
      }
  }
  .scrolldown span:first-of-type {
      background-color: rgba(207,204,195,.4)
  }
  .scrolldown span:last-of-type {
      background-color: var(--stone-0);
      animation: scroll-line 3s infinite both
  }
  @media screen and (max-width: 60em) {
    .scrolldown {
      left: 20px;
      bottom: 65px;
    }
    .scrolldown div{
        height: 70px;
    }
  }

  /** 山をもっと楽しもう */
  .about {
    text-align: center;
  }
  .about img {
    width: 100%;
  }
  .about-phrase {
    margin: 20px 0;
  }
  .about-phrase-detail {
    line-height: 2.5;
  }
  @media screen and (max-width: 60em) {
    .about img {
      width: 80%;
    }
    .about-phrase-detail {
      text-align: left;
      width: 90%;
      line-height: 1.75;
      margin-bottom: 20px;
    }
  }
  
  /* 山行活動 */
  .activity-main {
    flex-direction: row-reverse;
    margin: 3vw 0;
  }
  .activity .section-main-title {
    left: 2vw;
    bottom: 2vw;
  }
  .activity-main img {
    right: 2vw;
  }
  .group-activity-title{
    margin-bottom: 2.5vw;
  }
  .group-activity {
    width: 90%;
    display: flex;
    justify-content: space-between;
  }
  .group-activity-detail-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 5px;
  }
  .group-activity-detail-img {
    width: 26vw;
  }
  .group-activity-detail-img img {
    width: 100%;
    max-width: 100%;
    border-radius: 5px;
  }
  .group-activity-detail-box h3 {
    line-height: 50%;
    margin-block-end: 0.5em;
    color: var(--stone-9);
  }
  @media screen and (max-width: 60em) {
    .activity-main {
      flex-direction: column;
      align-items: center;
    }
    .activity-list ul {
      padding-inline-start: 10px;
    }
    .group-activity {
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 100%;
    }
    .group-activity-title{
      text-align: center;
    }
    .group-activity-title img{
      width: 80%;
    }
    .group-activity-detail-box {
      margin-right: 0;
    }
    .group-activity-detail-img {
      width: 90vw;
    }
    .group-activity-detail-box h3 {
      line-height: 100%;
      margin-block-end: 0;
    }
    .group-activity-detail-box li {
      letter-spacing: .2em;
    }
  }
  .activity-list ul {
    margin-top: 0.5rem;
    margin-left: 0;
    padding-inline-start: 10px;
  }
  .activity-list li {
    padding: 0.25rem 0.1rem;
  }
  .activity-plan-calendar {
    margin: 2rem auto;
    background: var(--stone-0);
    color: var(--stone-9);
    width:100%;
  }
  .calendar-public {
    background: var(--yellow-6);
  }
  .calendar-member {
    background: var(--blue-7);
  }
  .fc .fc-toolbar.fc-header-toolbar {
    margin: 1.5em 1em;
    justify-content: flex-end;
  }
  .fc .fc-button-primary {
    margin: 0 1em;
    background: var(--stone-0);
    border: none;
    color: var(--stone-9);
  }
  .calendar-tooltip {
    position: absolute;
    background-color: var(--stone-0);
    color: var(--stone-9);
    padding: 1rem;
    border-radius: 5px;
    font-size: 1rem;
    line-height: 1.75;
    z-index: 100;
    display: none;
    max-width: 300px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  }
  .calendar-tooltip a {
    text-decoration: underline;
    color: var(--yellow-7);
  }

  /** 公開ハイク */
  .public-activity-list {
    margin: 2em 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
  }
  .public-activity-title{
    margin-bottom: 30px;
  }
  .public-activity-title img {
    width: 30em;
  }
  @media screen and (max-width: 60em) {
    .activity-plan-calendar {
      margin: 1rem auto;
      width: 90%;
    }
    .fc .fc-toolbar.fc-header-toolbar {
      margin: 1em 0;
      justify-content: center;
    }
    .calendar-tooltip {
      width: 90vw;
      left: 5vw !important;
      right: 5vw;
      max-width: 100vw;
      border-radius: 5px;
      box-sizing: border-box;
      font-size: .9rem;
    }
    .public-activity-list {
      padding: 0 .75em;
    }
    .public-activity-title {
      text-align: center;
    }
    .public-activity-title img {
      width: 80%;
    }
  }

  /* 初級登山学校 */
  .school-main {
    flex-direction: row;
    margin: 3vw 0;
  }
  .school .section-main-title {
    right: 2vw;
    top: -1vw;
  }
  .school-main img {
    left: 2vw;
  }
  .school-detail {
    display: flex;
    flex-direction: column;
    justify-content:center;
    align-items: center;
  }
  .school-walking-img {
    width: 100%;
    max-width: 650px;
  }
  .school-schedule, .school-features {
    width: 100%;
  }
  .school-features-title {
    display: flex;
    color: var(--stone-9);
  }
  .school-schedule-detail, .school-features-detail {
    display: flex;
    gap: 5em;
    color: var(--stone-9);
    justify-content: center;
  }
  .school-features-detail .item-caption {
    margin-bottom: 1em;
    width: 100%;
    max-width: 650px;
    line-height: 1.5em;
  }
  .school-features-detail .item-caption span {
    font-weight: 600;
    line-height: 2.5em;
  }
  @media screen and (max-width: 60em) {
    .school-main {
      flex-direction: column;
      align-items: center;
    }
    .school-title {
      bottom: 10em;
      right: 3em;
      left: 0;
    }
    .school-about {
      flex-direction: column;
      justify-content:center;
      align-items: flex-start;
      padding-left: 1rem;
    }
    .school-schedule {
      width: 90%;
    }
    .school-features {
      display: flex;
      flex-direction: column;
      justify-content:center;
      align-items: center;
    }
    .school-schedule-detail {
      flex-direction: column;
      justify-content:center;
      align-items: flex-start;
      padding-left: 2rem;
      gap: 1em;
    }
    .school-schedule-detail, .school-features-detail {
      flex-direction: column;
      justify-content:center;
      align-items: center;
      gap: 1em;
      padding-left: 0;
    }
    .school-features-title {
      justify-content:center;
    }
    .school-features-detail {
      width: 90%;
      max-width: 90%;
    }
    .school-features-detail .item-caption span {
      font-weight: 600;
      line-height: 2.5em;
      margin: 0 auto;
    }
  }

  /* 雪山教室 */
  .snowclass-main {
    flex-direction: row-reverse;
    margin: 3vw 0;
  }
  .snowclass .section-main-title {
    left: 2vw;
    top: -20px;
    padding-right: 20px;
  }
  .snowclass-main img {
    right: 2vw;
  }
  .snowclass-detail {
    width: 90%;
    margin: 0 auto;
  }
  .snowclass-about {
    width: 100%;
    display: flex;
    gap: 2em;
    justify-content:flex-start;
  }
  @media screen and (max-width: 60em) {
    .snowclass-main {
      flex-direction: column;
      align-items: center;
    }
    .snowclass-about {
      flex-direction: column;
      justify-content:center;
      align-items: flex-start;
      padding-left: 1rem;
    }
  }

  /* 入会について */
  .joinus-title {
    display: flex;
    flex-direction: column;
    justify-content:center;
    align-items:center;
  }
  .joinus-title h1 {
    font-weight: 600;
    font-size: 2.2rem;
    overflow-wrap: break-word;
    font-family: "Inter",sans-serif;
    color: var(--stone-9);
    margin: 0;
  }
  .joinus-img {
    width: 250px;
  }
  .l-joinus {
    display: flex;
    justify-content: center;
    width: 100%;
    border-radius: 5px;
  }
  .l-joinus-flow {
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .l-joinus ul {
    padding: 0;
  }
  .l-joinus li {
    list-style-type: none;
  }
  .l-joinus dd {
    margin-left: 0;
  }
  .flows {
    position: relative;
  }
  .flows::before {
    content: "";
    width: 15px;
    height: 100%;
    background: var(--stone-0);
    border: dashed 0.25px var(--stone-4);
    margin-left: -129px;
    display: block;
    position: absolute;
    top: 0;
    left: 120px;
    border-radius: 5px;
  }
  .flows > li {
    position: relative;
  }
  .flows > li:not(:last-child) {
    margin-bottom: 60px;
  }
  .flows > li .flow-icon {
    font-size: .8em;
    width: 2em;
    height: 2em;
    line-height: 2;
    text-align: center;
    font-weight: bold;
    border-radius: 100vh;
    color: var(--stone-0);
    background: var(--stone-8);
    display: inline-block;
    margin-right: 0.3em;
  }
  .flows > li dl {
    padding-left: 70px;
    position: relative;
  }
  .flows > li dl::before,
  .flows > li dl::after {
    content: "";
    display: block;
    position: absolute;
    top: 15px;
  }
  .flows > li dl::before {
    width: 7px;
    height: 7px;
    margin-top: -3px;
    background: var(--stone-8);
    border-radius: 50%;
    left: -4px;
  }
  .flows > li dl::after {
    width: 50px;
    border-bottom: 1px dashed var(--stone-4);
    position: absolute;
    left: 5px;
  }
  .flows > li dl dt {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--stone-8);
    margin-bottom: 0.5em;
    display: flex;
    align-items: center;
  }
  .l-joinus-fee {
    border-radius: 5px; 
  }
  .joinus-fee-detail {
    margin: 1rem 0;
  }
  @media screen and (max-width: 60em) {
    .joinus-img {
      width: 120px;
    }
    .joinus-title h1 {
      font-size: 2em;
      margin: 0;
    }
    .l-joinus, .l-joinus-fee {
      display: flex;
      padding: 0;
      flex-direction: column;
      justify-content: center;
      width: 90%;
    }
    .flows > li dl {
      padding-left: 30px;
    }
    .flows > li dl::after {
      width: 20px;
    }
  }

  /* よくある質問 */
  .l-faq {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0 3rem;
    color: var(--stone-9);
  }
  .l-faq h1 {
    font-weight: 600;
    font-size: 1.5rem;
    overflow-wrap: break-word;
    font-family: "Inter",sans-serif;
  }
  .faq-list .faq-box {
    position: relative;
    width: 100%;
    margin: 0 0 1em 0;
    color: var(--stone-0);
  }
  .faq-list .faq-box input {
    display: none;
  }
  .faq-list .faq-box label {
    font-weight: bold;
    line-height: 1.6em;
    position: relative;
    display: block;
    margin: 0 0 0 0;
    padding: 1em 2em 1em 2.5em;
    cursor: pointer;
    text-indent: 1em;
    border-radius: 0.5em;
    background: var(--stone-5);
  }
  .faq-list .faq-box label::before {
    content: 'Q';
    font-size: 2rem;
    font-weight: 100;
    margin-left: -1em;
    padding-right: 0.5em;
  }
  .faq-list .faq-box label:hover {
    color: var(--stone-0);
    transition: all 0.3s;
  }
  .faq-list .faq-box label::after {
    position: absolute;
    top: 0;
    right: 0;
    content: '+';
    font-size: 1.7em;
    font-weight: bold;
    line-height: 2em;
    display: inline-block;
    width: 2em;
    height: 2em;
    transition: transform 0.3s;
  }
  .faq-list .faq-box .faq-box-content {
    position: relative;
    overflow: hidden;
    max-height: 0;
    padding: 0 0 0 2em;
    border-radius: 0 0 0.5em 0.5em;
    transition: max-height 0.2s;
  }
  .faq-list .faq-box .faq-box-content::before {
    position: absolute;
    content: 'A';
    font-size: 2rem;
    font-weight: 100;
    margin: 0.1em 0;
    padding: 0;
    color: var(--stone-8);
  }
  .faq-list .faq-box .faq-box-content p {
    margin: 1em 1em 1em 0;
    padding-left: 1.7em;
    font-weight: 600;
    color: var(--stone-8);
  }
  .faq-list .faq-box input:checked ~ .faq-box-content {
    max-height: 40em;
    border: 10px solid var(--stone-5);
  }
  .faq-list .faq-box input:checked ~ label {
    color: var(--stone-0);
    border-radius: 0.5em 0.5em 0 0;
  }
  .faq-list .faq-box input[type=checkbox]:checked + label::after {
    transform: rotateZ(45deg);
    transform-origin: 50% 50%;
  }
  @media screen and (max-width: 60em) {
    .l-faq {
      padding: 0;
      width: 90%;
    }
    .l-faq h1 {
      font-size: 2em;
      margin: 0;
    }
    .faq-list {
      margin: 2em 0;
    }
    .faq-list .faq-box label {
      padding: 1em 2.5em 1em 1em;
      font-size: 1em;
      font-weight: 100;
    }
    .faq-list .faq-box label::before {
      content: '';
    }
    .faq-list .faq-box .faq-box-content {
      padding: 0;
      margin: 0;
    }
    .faq-list .faq-box .faq-box-content::before {
      content: '';
    }
  }

  /** アクセス */
  .access {
    margin-top: 0;
    padding-top: 0;
  }
  .access iframe{
    width: 100%;
  }
  @media screen and (min-width: 60em) {
    .access iframe {
      width: 1200px;
      height: 600px;
    }
  }
  @media screen and (max-width: 60em) {
    .access iframe {
      width: 450px;
      height: 300px;
    }
  }