@charset "utf-8";

/* 全体のスタイル調整 */
*{box-sizing: border-box;}

/* bodyの初期スタイル */
body{
  font-size: 16px;
  line-height: 1.5;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", YuGothic, "ヒラギノ角ゴ ProN W3", "HiraginoKaku Gothic ProN", Arial, "メイリオ", Meiryo, system-ui, sans-serif;
  color: #333;
  background-color: #fff;
}

/* ヘッダー部分のスタイル */
h1{margin-bottom: 24px;}
h1 img{max-width: 100%;}

/* 見出し関連のスタイル */
h2 {
  margin-bottom: 16px;
  text-align: center;
}
h2 img{height: 3rem;}

h3{
  margin-bottom: 16px;
  text-align: center;
}

/* 『本書の特徴』のスタイル */
.feature{margin-bottom: 24px;}

.feature_01, 
.feature_02{
  width: 296px;
  margin: 0 auto 24px;
}

.feature_img{margin-bottom: 16px;}
.feature_img img{max-width: 100%;}

.feature_text{font-size: 0.75rem;}

/* 出版社の書籍紹介ページへのリンク */
.book_more{text-align: center;}

.book_more a{
  display: inline-block;
  padding: 8px 40px;
  border: 1px solid #333;
  border-radius: 8px;
  font-size: 0.75rem;
  color: #333;
  background-color: #fff;
  text-decoration: none;
}

.book_more a::after{
  display: inline-block;
  position: relative;
  content: "";
  width: 16px;
  height: 16px;
  top: 2px;
  left: 8px;
  background: url(../img/arrow.png) no-repeat right center;
}

/* 「本書の章構成」のスタイル調整 */
.contents_list{
  margin-bottom: 24px;
  background: url(../img/contents-list_bg.jpg) no-repeat center center #fdd;
  background-size: cover;
  padding: 24px 0;
}

.contents_list ul{
  list-style: none;
  width: 296px;
  margin: 0 auto;
  padding: 8px 24px;
  font-size: 0.75rem;
  /* 背景に文字重なって見にくいので､半透明な箱を用意して､その上に文字を配置 */
  background-color: rgba(255, 255, 255, 0.8);
}

.contents_list ul li{
  border-bottom: 1px dotted #000;
  padding: 10px 0;
}

.contents_list ul :last-child{border-bottom: none;}

/* [本書の著者]のスタイル */
.author{margin-bottom: 24px;}
.author dl{
  width: 296px;
  margin: 0 auto;
}
.author dl dt{
  font-weight: bold;
  font-size: 1rem;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid #000;
}

.author dl dd{
  margin-bottom: 16px;
  font-size: 0.75rem;
}

/* footerのスタイル */
.book-info{
  height: 60vh;
  background: url(../img/footer_bg.jpg) no-repeat center center #fdd;
  background-size: cover;
  display: flex;
  justify-content: center;
  align-items: center;
}
.book-info-wrap{
  width: 296px;
  padding: 16px;
  background-color: rgba(255, 255, 255, 0.8);
}
.book-info-wrap p{
  margin-bottom: 16px;
  font-weight: bold;
  font-size: 1rem;
}
.book-info ul{
  list-style: none;
  font-size: 0.75rem;
}

/* SNSリンクやコピーライトのスタイル */
.footer-info{
  padding: 32px 0;
  color: #fff;
  background-color: #000;
}

.footer-info ul{
  margin-bottom: 24px;
  list-style: none;
  display: flex;
  justify-content: center;
}

.footer-info ul li{margin: 0 8px;}

.footer-info ul li img{
  width: 24px;
  height: 24px;
}

.copyright{
  text-align: center;
  font-size: 0.75rem;
}

/* PC用のスタイル */
@media (min-width: 768px){
  /* header */
  h1{
    border-top: 16px solid #fa982d;
    margin-bottom: 40px;
    /* padding-top: 40px; */
    text-align: center;
  }
  h1 img{width: 960px;}

  /* 見出し */
  h2{margin-bottom: 32px;}
  h2 img{height: 4rem;}

  h3{
    margin-bottom: 24px;
    font-size: 1.25rem;
  }

  /* [本書の特徴]を2段組にするためにdiv.featureをHTMLに追加 */
  /* [本書の特徴]のスタイル調整 */
  .feature{
    margin-bottom: 80px;
  }
  .feature-wrap{
    width: 768px;
    margin: 0 auto 40px;
    display: flex;
    justify-content: space-around;
  }
  .feature_01,.feature_02{
    width: 344px;
    margin: 0;
  }
  .feature_img{
    margin-bottom: 24px;
  }
  .feature_text{
    font-size: 1rem;
  }
  .book_more a{
    padding: 16px 96px;
    font-size: 1rem;
  }
  .book_more a:hover{
    background-color: rgba(0, 0, 0, 0.2)
  }

  /* [本書の章構成]のPC用設定 */
  .contents_list{
    margin-bottom: 80px;
    padding: 32px 0;
  }
  .contents_list ul{
    width: 640px;
    font-size: 1rem;
  }

  /* [著者] */
  .author{
    margin-bottom: 80px;
  }
  .author dl{
    width: 640px;
  }
  .author dl dt{
    margin-bottom: 16px;
    padding-bottom: 8px;
    font-size: 1.25rem;
  }
  .author dl dd{
    margin-bottom: 40px;
    font-size: 1rem;
  }

  /* footer */
  .book-info{
    height: 80vh;
  }
  .book-info-wrap{
    width: 640px;
    padding: 32px;
  }
  .book-info-wrap p{
    margin-bottom: 32px;
    font-size: 2rem;
  }
  .book-info ul{
    font-size: 1em;
  }
  .book-info ul li{
    display:inline-block;
    margin-right: 16px;
  }

  .footer-info{
    padding: 32px 0 40px;
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
  .footer-info ul{
    margin: 0;
  }
  .footer-info ul li{
    margin: 0 16px;
  }

  .footer-info ul li img{
    width: 48px;
    height: 48px;
  }
  .copyright{
    font-size: 1rem;
  }
}

@media (min-width: 992px) {
  h1{padding-top: 40px;}
}