html{
  font-size: 62.5%; /*10px*/
  scroll-behavior:smooth;
}

body{
  font-family: "noto-sans-cjk-jp", sans-serif;
font-family: gill-sans-nova, sans-serif;

  background-color: #ffffff;
  color: #333333;
  margin:auto;
  line-height: 1.5;

background-attachment: fixed;
background-repeat: no-repeat;
object-fit: cover;
background-size: cover;
background-position: center center;
}

img{
  width: 100%;
  vertical-align: bottom;
}

a { text-decoration: none;
    color: #333333;
  }


/*header*/

header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 6vh;
  position: fixed;
  width: 100%;
  box-sizing: border-box;
  background-color: rgba(255, 255, 255, 0.8);
    z-index: 9998;

}

.burger-btn{
  display: none;
}



.nav-list{
  display: flex;

}

.site-img{
  width: 100px;
}

.nav-item{
  justify-content: space-between;
  padding: 0 40px;
  color: #333333;
  font-family: gill-sans-nova, sans-serif;
  font-weight: 200;
  font-style: normal;
  font-size: 1.4rem;
}



.section-wrapper{
  max-width: 1500px;
  padding: 100px 50px;
  margin: auto;

  background-attachment: fixed;

}

.footer-text{
  text-align: center;
  font-size: 1.4rem;
  font-family: gill-sans-nova, sans-serif;
  font-weight: 200;
  font-style: normal;
  padding: 10px;
}



div.vid_contents2 {
  width: 100%;/*背景色を横幅いっぱいに広げる*/
  text-align: center;
  margin: auto;
  padding:10px;/*ここで動画の周りの余白を調整*/
  }
  video.vid_main2 {
    text-align: center;
  width: 100%;
  max-width: 300px;/*PC版での最大幅*/
  }

  div.vid_contents3 {
    width: 100%;/*背景色を横幅いっぱいに広げる*/
    text-align: center;
    margin: auto;
    padding:20px;/*ここで動画の周りの余白を調整*/
    }
    video.vid_main3 {
      text-align: center;
    width: 100%;
    max-width: 700px;/*PC版での最大幅*/
    }




@media screen and (max-width:800px){
  /* ----------------------------- */
  /* header_sp
  /* ----------------------------- */

  div.vid_contents2 {

    margin: auto;
    padding:0px;/*ここで動画の周りの余白を調整*/
    }
  video.vid_main2 {
    text-align: center;
  width: 100%;
  margin: auto;
  max-width: 250px;/*PC版での最大幅*/
  }


  div.vid_contents3 {

    margin: auto;
    padding:20px 0px;/*ここで動画の周りの余白を調整*/
    }
  video.vid_main3 {
    text-align: center;
  width: 100%;
  margin: auto;
  max-width: 250px;/*PC版での最大幅*/
  }

  
  .section-wrapper{
    max-width: 1000px;
    padding: 50px 5px;
    margin: auto;
    justify-content: center;
  }

  


   /* ハンバーガーボタン */
  .burger-btn{
    display: block;
    width: 55px;
    height: 44px;
    position: relative;
z-index: 5;

  }
  .bar{
    display: block;
    width: 100%;
    height: 5px;
    border-radius: 20px;
    background-color: #000;
    position: absolute;
    

  }
  .bar_top{
    top: 0;
  }
  .bar_middle{
    top: 20px;
  }
  .bar_bottom{
    bottom: 0;
  }

   /* ハンバーガーボタンをクリックしたときのボタンの見た目 */
.burger-btn.cross .bar_top{
    transform: rotate(45deg);
    top: 20px;
    transition: .3s;
  }
  .burger-btn.cross .bar_middle{
    opacity: 0;
    transition: .3s;
  }
  .burger-btn.cross .bar_bottom{
    transform: rotate(-45deg);
    bottom: 20px;
    transition: .3s;
  }


  .header-nav{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.9);
    display: none;
    width: 100px;
  }
  .nav-list{
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);

  }

  .nav-item{
padding-bottom: 30px;
    text-align: center;
  }

  .section-wrapper{
    max-width: 1000px;
    padding: 50px 10px;
    margin: auto;
  }

  .site-img{
    width: 80px;
  }


}