@charset "UTF-8";
/* CSS Document */

* { box-sizing: border-box; }

body {
  color: #2f3640;
  font-family: 'ヒラギノ角ゴ Pro', 'Hiragino Kaku Gothic Pro','メイリオ', 'Meiryo', '游ゴシック', 'Yu Gothic', 'ＭＳ Ｐゴシック', 'MS PGothic', sans-serif;
  font-size: 18px;
  line-height: 1.7;
  position: relative;	
  background: #fcfcfc;
}


/* **********
  header 
********** */

header {
  width: 100%;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(15px);
  background-color: rgba(255,255,255, 0.8);
  border-bottom: 1px solid #fff;
  position: fixed;
  z-index: 50;
}

.header_area {
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.toTop a {
  display: block;
  color: #2F3640;
  border: 2px solid #2F3640;
  padding: 15px 10px;
  line-height: 0;
  border-radius: 30px;
  text-decoration: none;
  transition: 0.3s;
  font-size: 14px;
}

.toTop a:visited { color: #2F3640; }

.toTop a:hover {
  color: #fcfcfc;
  background: #2F3640;
}

@media screen and (max-width: 896px) {
  body {
    font-size: 16px;
    line-height: 1.6;
  }

  .header_area {
    max-width: 756px;
    width: 95%;
    padding: 10px;
  }
  .toTop a {
    border: 1px solid #2F3640;
    font-size: 13px;
  }
  
  .header_area img {
    display: block;
    height: 16px;
    width: auto;
  }
}


/* **********
  animation
********** */

.fadeUp{
  animation-name:fadeUpAnime;
  animation-duration:1.5s;
  animation-fill-mode:forwards;
  opacity:0;
}

@keyframes fadeUpAnime{
  from { opacity: 0; transform: translateY(100px); }
  to { opacity: 1; transform: translateY(0); }
}
.up { opacity: 0; }
.up[data-loaded="true"] { opacity: 1; transform: translateY(0); }


/* **********
  index 
********** */


.index-list {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.index-list::before {
  position: absolute;
  content: "";
  width: 100%;
  height: 100%;
  background: url("images/bg-index.png") no-repeat center;
  background-attachment: fixed;
  background-size: cover;
  z-index: -100;
}

.index-list h1 {
  font-size: 32px;
  color: #2F3640;
  padding-top: 95px;
  margin-bottom: 30px;
  text-align: center;
}

.index-list h1::first-letter { color: #4DBBEB; }

.index-list article {
  position: relative;
  padding: 0 20px 70px;
  width: 95%;
  max-width: 500px;
  overflow: hidden;
}

.index-list article::after {
  position: absolute;
  content: "";
  margin: 0 auto;
  width: 10px;
  height: calc( 100% - 150px);
  top: 50px;
  left: 0;
  right: 0;
  background: #2F3640;
  z-index: -20;
}

.index-list a {
  position: relative;
  display: flex;
  align-items: center;
  background: #fcfcfc;
  border: 2px solid #2F3640;
  color: #2F3640;
  text-decoration: none;
  font-weight: bold;
  font-display: 18px;
  padding: 10px;
  margin-bottom: 30px;
  transition: 0.3s;
}

.index-list a:visited { color: #2F3640; }

.index-list a:hover {
  background:#2F3640;
  color: #fcfcfc;
}

.index-list a::after {
  position: absolute;
  content: "";
  width: 100%;
  height: 100%;
  z-index: -10;
  bottom: -10px;
  right: -10px;
  border: 2px solid #2F3640;
}

.index-list a span,.index-list a:visited span { color: #4DBBEB; }

.index-list a img {
  display: block;
  width: 80px;
  min-width: 60px;
  height: auto;
  margin-right: 10px;
}


/* **********
  common 
********** */

.mb50 { margin-bottom: 50px; }
.txt-center { text-align: center; }
.txt-right { text-align: right; }
.small { display: block;  color: #787f89; font-size: 16px; }

.img-right {
  display: flex;
  justify-content: flex-end;
}

.img-center {
  display: flex;
  justify-content: center;
}

.img-right img,
.img-center img{
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
}

@media screen and (max-width: 896px) {
  .small { font-size: 15px; }
}


/* **********
  main 
********** */

main {
  position: relative;
  width: 95%;
  max-width: 960px;
  margin: 0 auto;
  padding: 95px 0 50px;
  overflow: hidden;
}

main::before {
  position: absolute;
  content: "";
  background: #c6b581;
  width: 3px;
  height: 100%;
  top: 115px;
  left: 15px;
}
main p { margin: 1em 0; }

section { padding-left: 35px; }

/* 見出し */

article { 
  min-height:400px;
  margin-top: 100px;
}

article:first-of-type { margin-top: 0; }

article h2 {
  position: relative;
  z-index: 10;
  font-size: 32px;
  line-height: 1.2;
  padding-left: 1em;
  margin-bottom: 30px;
}

article h2::after {
  position: absolute;
  content: "";
  background: #c6b581;
  width: 24px;
  height: 24px;
  border-radius:12px;
  top: 7.2px;
  left: 4px;
}

article h2::first-letter { color: #4DBBEB; }

@media screen and (max-width: 896px) {
  main {
    max-width: 756px;
    padding: 70px 0 30px;
  }
  
  main::before {
    top: 80px;
    left: 11px;
  }
  
  article { 
    min-height: 100%;
    margin-top: 50px;
  }

  article h2 {
    font-size: 24px;
    margin-bottom: 15px;
  }

  article h2::after {
    position: absolute;
    content: "";
    background: #c6b581;
    width: 16px;
    height: 16px;
    border-radius:8px;
    top: 7.2px;
    left: 4px;
  }
  
  section { padding-left: 25px; }
  
}


/* **********
  見出し+テキスト+右側背景画像のレイアウト
********** */

.right-bg { 
  position: relative;
  width: 100%;
  min-height: 330px;
}

.right-bg::before {
  content: "";
  position: absolute;
  z-index: -10;
  top: -64px;
  right: 0;
  width: 100%;
  height: 100%;
  max-width: 720px;
  min-height: 405px;
  background-repeat: no-repeat;
  background-size: contain;
}

.right-bg.bg01::before { background-image: url("images/bousai01-bousaicenter.png"); }
.right-bg.bg02::before { background-image: url("images/bousai02-digitalarchive.png"); }
.right-bg.bg03::before { background-image: url("images/bousai03-bousaicenter_kaisetsu.png"); }
.right-bg.bg04::before { background-image: url("images/bousai05-bousaicenter3D.png"); }
.right-bg.bg05::before { background-image: url("images/bousai06-houkokushoUP.png"); }
.right-bg.bg06::before { background-image: url("images/bousai07-kenka.png"); }
.right-bg.bg07::before { background-image: url("images/bousai08-moriokachisai.png"); }
.right-bg.bg08::before { background-image: url("images/bousai09-senndaikosai.png"); }
.right-bg.bg09::before { background-image: url("images/bousai10-atochi.png"); }
.right-bg.bg10::before { background-image: url("images/bousai11-inori.png"); }

.bg05 { margin-top: 100px; }

@media screen and (max-width: 896px) { 
  
  .right-bg { min-height: 250px; }
  .right-bg::before { top: 30px; } 
  .bg05 { margin-top: 30px; }
  
}


/* **********
  動画 
********** */

video {
  display: block;
  position: relative;
  width: 100%;
  height: auto;
  max-width: 480px;
}


/* **********
  テキスト+動画（横並び）のレイアウト
********** */

.text-video {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.text-video p { width: 48%; }

.text-video video,.text-video img {
  display: block;
  width: 50%;
  height: auto;
}

@media screen and (max-width: 896px) {
  .text-video {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
  }
  
  .text-video p {
    width: 100%;
    margin-bottom: 1em;
  }

  .text-video video,.text-video img { width: 100%; }
}


/* **********
  セクションごとのレイアウト
********** */

.video01 { margin-top: -120px; }
.video02 { margin: 50px auto;}
.video03 { margin-top: -120px; }

.img_katagiri {
  margin-top: -250px;
  padding-left: 120px;
}

.right_cont {
  display: flex;
  justify-content: flex-end;
}
.center_cont {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.kunren-pc { display: flex; justify-content: center; }
.kunren-sp { display: none; }

.blue { color: #4DBBEB; }
.orange { color: #E05D01; }

.video-twocol {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.video-twocol video {
  width: 49.5%;
  height: auto;
}

@media screen and (max-width: 896px) {
    
  .video02 { margin: 30px auto;}
  .img_katagiri { margin-top: -120px; padding-left: 20px; width: 50%; max-width: 220px; }
  .kunren-pc { display: none; }
  .kunren-sp { display: flex; justify-content: center; }
  
  .video-twocol video {
    width: 100%;
    height: auto;
    max-width: 480px;
    margin-bottom: 10px;
  }
  
}

/* PC/SP */

.sp-only { display: none; }

@media screen and (max-width: 896px) {
  .pc-only { display: none; }
  .sp-only { display: block; }
}