@charset "UTF-8";
html{
  font-size: 62.5%;
}

body{
  background-color: rgba(10,0,33,1.0);
  color: white;
  text-align: center;
  font-family: "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}

/* For PC(Wide size) */
@media screen and (min-width: 500px){
#menu{
  height: 100px;
  width: 100%;
  left: 0;
  top: 0;
  position: fixed;
  text-align: center;
  display: flex;
  justify-content: start;
  align-items: center;
  background-color: rgba(50,50,50,0.4);
}

#nav{
  display: inline-block;
  list-style-type: none;
  overflow: hidden;
  font-size: 2rem;
  margin: auto auto;
  padding-left: 0;
}
#nav li{
  display: inline-block;
  float: left;
  padding: 15px;
}
#nav a{
  text-decoration: none;
  padding: 1rem;
  color: white;
  cursor: pointer;
}

#main{
  margin: 100px 0;
}
.title_section{
  margin-bottom: 50px;
}
.title{
  font-size: 8rem;
}
.sub_title{
  font-size: 2rem;
}
.top_text{
  font-size: 1.5rem;
  margin-left: 10%;
  margin-right: 10%;
  margin-bottom: 50px;
}


/* About */
.horizon{
  color: white;
  margin-bottom: 20px;
}

.img_box{
  width: 100%;
  margin-top: 100px;
}

.channel_art{
  width: 100%;
  object-fit: cover;
}

.section{
  font-size: 2rem;
  text-align: left;
  display: block;
  margin: 150px 5% 0;
}

.section_intro{
  font-size: 2rem;
  text-align: left;
  display: flex;
  margin: 100px 5% 50px;
}

.icon{
  width: 40vw;
  height: auto;
  padding: 10px 5% 0 0;
}

.intro_text{
  vertical-align: top;
  font-size: 2rem;
}
.name{
  font-size: 3rem;
  margin-top: 10px;
  margin-bottom: 10px;
}

/* Video */
.subsection{
  text-align: left;
  display: block;
  margin-top: 150px;
}

.subsection_title{
  border-left: 7px solid white;
  font-size: 2.5rem;
  padding-left: 10px;
  margin-bottom: 20px;
}

.subsection_text{
  padding-left: 17px;
  font-size: 2rem;
}
}



/* For Tablet?(Intermidiate size) */
@media screen and (min-width: 500px) and (max-width: 1000px){
#menu{
  height: 100px;
  width: 100%;
  left: 0;
  top: 0;
  position: fixed;
  text-align: center;
  display: flex;
  justify-content: start;
  align-items: center;
  background-color: rgba(50,50,50,0.4);
}

#nav{
  display: inline-block;
  list-style-type: none;
  overflow: hidden;
  font-size: 1.6rem;
  margin: auto auto;
}
#nav li{
  display: inline-block;
  float: left;
  padding: 1vw;
}
#nav a{
  text-decoration: none;
  padding: 1rem;
  color: white;
  cursor: pointer;
}

#main{
  margin: 100px 0;
}
.title_section{
  margin-bottom: 50px;
}
.title{
  font-size: 8rem;
}
.sub_title{
  font-size: 2rem;
}

/* About */
.horizon{
  color: white;
  margin-bottom: 20px;
}

.img_box{
  position: relative;
  width: 100%;
  height: 250px;
  margin-top: 100px;
  overflow-x: hidden;
}
.channel_art{
  position: absolute;
  width: 1200px;
  object-position: center;
  object-fit: cover;
  transform: translate(-50%, 0);
}

.section{
  font-size: 2rem;
  text-align: left;
  display: block;
  margin: 150px 5% 0;
}

.section_intro{
  font-size: 2rem;
  text-align: left;
  display: flex;
  margin: 100px 5% 50px;
}

.icon{
  width: 40vw;
  height: 40vw;
  padding: 10px 5% 0 0;
}

.intro_text{
  vertical-align: top;
  font-size: 2.2vw;
}
.name{
  font-size: 2.5rem;
  margin-top: 10px;
  margin-bottom: 10px;
}

/* Video */
.subsection{
  text-align: left;
  display: block;
  margin-top: 150px;
}

.subsection_title{
  border-left: 7px solid white;
  font-size: 2.5rem;
  padding-left: 10px;
  margin-bottom: 20px;
}

.subsection_text{
  font-size: 2vw;
  padding-left: 17px;
}
}






/* For Smart Phone */
@media screen and (max-width: 500px) {
  #menu{
    height: 60px;
    width: 100%;
    left: 0;
    top: 0;
    position: fixed;
    white-space: nowrap;
    overflow-x: scroll;
    text-align: center;
    display: flex;
    justify-content: start;
    align-items: center;
    background-color: rgba(50,50,50,0.4);
  }

  #nav{
    white-space: nowrap;
    max-width: 400px;
    height: 25px;
    display: inline-block;
    list-style-type: none;
    overflow-x: scroll;
    overflow-y: hidden;
    font-size: 1.4rem;
    margin: auto auto;
    padding-left: 0;
  }
  #nav li{
    display: contents;
    float: left;
    padding: 1vw;
  }
  #nav a{
    text-decoration: none;
    padding: 1rem;
    color: white;
    cursor: pointer;
  }

  #main{
    max-width: 350px;
    margin: 100px auto 0;
  }
  .title_section{
    margin-bottom: 50px;
  }
  .title{
    font-size: 4rem;
  }
  .sub_title{
    font-size: 1.5rem;
  }

  /* About */
  .horizon{
    color: white;
    margin-bottom: 20px;
  }

  .channel_art{
    width: 100%;
    object-fit: cover;
  }

  .img_box{
    width: 100%;
    max-height: 200px;
    margin-top: 100px;
    overflow: hidden;
  }

  .section{
    font-size: 2rem;
    text-align: left;
    display: block;
    margin: 150px 5% 0;
  }

  .section_intro{
    font-size: 2rem;
    text-align: left;
    display: block;
    margin: 100px 5% 50px;
  }

  .icon{
    width: 100%;
    height: 40%;
    padding: 10px 5% 0 0;
  }

  .intro_text{
    vertical-align: top;
    font-size: 4.0vw;
  }
  .name{
    font-size: 2.5rem;
    margin-top: 10px;
    margin-bottom: 10px;
  }

  /* Video */
  .subsection{
    text-align: left;
    display: block;
    margin-top: 150px;
  }

  .subsection_title{
    border-left: 7px solid white;
    font-size: 2.5rem;
    padding-left: 10px;
    margin-bottom: 20px;
  }

  .subsection_text{
    padding-left: 17px;
    font-size: 1.5rem;
  }
}