@charset "UTF-8";

/* --------------------------------
 * base
 * -------------------------------- */
html {
  font-size: 62.5%;
}
body {
  background: #000 url('../images/D157.jpg') no-repeat fixed left bottom;
  background-size: cover;
  color: #fff;
  text-align: center;
  font-size: 1.4rem;
  font-family: Raleway, "ＭＳ Ｐ明朝", "MS PMincho", "ヒラギノ明朝 Pro W3", "Hiragino Mincho Pro", serif;
  font-weight: 600;
}
*, *::before, *::after {
  box-sizing: border-box;
}


/* --------------------------------
 * parts
 * -------------------------------- */
.heading {
  position: relative;
  display: inline-block;
  margin: 30px 0 15px;
  padding-bottom: 15px;
  letter-spacing: 2px;
  font-size: 4rem;
}
.heading::before,
.heading::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  border-bottom: 1px solid #999;
}
.heading::before {
  bottom: 5px;
}
.button {
  display: inline-block;
  width: 150px;
  color: #fff;
  font-size: 1.5rem;
}
.button:hover {
  opacity: 0.9;
}
h2{
  border-bottom: 2px solid #999;
  margin: 80px auto;
  width: 30%;
}
h3{
  border-bottom: 1px solid #999;
  width: 45%;
  margin: 50px auto;
}
.youtube {
  width: 400px;
  height: 335px;
}



/* --------------------------------
 * header
 * -------------------------------- */
.header {
  padding: 30px 30px 20px;
}
#header-a{
  background-color: rgba( 0, 0, 0, 0.15 );
  color: #FFF;
  text-align:left;
  width: 100%;
  padding: 5px 50px 20px;
  margin: 0 auto;
}
.site-title-sub {
  margin: 50px 0 10px;
  letter-spacing: 2px;
  font-size: 1.2rem;
}
.site-title-sub::before,
.site-title-sub::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 2px;
  background-color: #fff;
  vertical-align: middle;
}
.site-title {
  margin: 10px 0 10px;
  font-size: 2.6rem;
  letter-spacing: 10px;
}
.site-description {
  margin-bottom: 50px;
  font-size: 1.6rem;
}
.buttons .button {
}


/* --------------------------------
 * about
 * -------------------------------- */
.about {
  padding: 80px 30px;
  background-color: #fff;
  color: #333;
}
.about-text {
  margin: 30px 0;
  line-height: 2.5;
  clear: both;
}
#book-image{
  margin: 20px auto;
  width: 100%;
}
.book-img{
  float: left;
  width: 50%;
  margin-bottom: 80px;
}

/* --------------------------------
 * footer
 * -------------------------------- */
.footer {
  padding: 12px 0;
  font-size: 1.3rem;
  background-color: rgba( 0, 0, 0, 0.25 );
  color: #FFF;
}


/* --------------------------------
 * smart phone
 * -------------------------------- */
@media (max-width: 1024px) {
  body {
    background-image: none;
  }
  .header {
    background-image: url('../images/D157_2.jpg');
  }
}
@media (max-width: 768px) {
  body {
    font-size: 1.3rem;
  }
  .heading {
    margin-top: 20px;
    font-size: 2.5rem;
  }
  .button:hover {
    opacity: 1;
  }
  .youtube {
    width: 100%;
  }
  /* --- header --- */
  .header {
    padding: 0;
    background-image: url('../images/D157_2.jpg');
  }
  .site-title-sub {
    font-size: 1.7rem;
	white-space: nowrap;
  }
.heading::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  border-bottom: 1px solid #999;
   }
  .site-title {
    margin-top: 35px;
    font-size: 2.8rem;
	letter-spacing: 1px;
	white-space: nowrap;
  } 
  h2{
    border-bottom: 2px solid #999;
    margin: 15px auto;
	width:80%;
  }
  h3{
    border-bottom: 1px solid #999;
    width: 55%;
  }
  /* --- about --- */
  .about-text {
    line-height: 1.8;
  }
  .book-img{
    margin-bottom: 50px;
	clear: both;
	width: 100%;
   }
  .m-img{
	  width: 90%;
  }
}