@charset "UTF-8";
body {
  background-color: white;
}

.left_side {
  width: 356px;
}
.left_side .left_side_wrap {
  position: fixed;
  display: flex;
  flex-direction: column;
  width: 356px;
  height: 100%;
}
.left_side .left_side_wrap .left_side_header {
  display: flex;
  align-items: center;
  /* この数値👇と */
  height: 150px;
}
.left_side .left_side_wrap .left_side_header .left_side_series_title a {
  text-decoration: none;
  color: #1176d4;
}
.left_side .left_side_wrap .left_side_content {
  /*            この数値👇を同じにする */
  height: calc(100vh - 150px);
  overflow-y: auto;
  background-color: white;
}
.left_side .left_side_wrap .left_side_content ul {
  margin: 30px;
  margin-top: 16px;
  margin-bottom: 16px;
  margin-left: 40px;
  -webkit-padding-start: 0px;
  padding-inline-start: 0px;
  letter-spacing: 0.06em;
}
.left_side .left_side_wrap .left_side_content ul li {
  line-height: 30px;
  padding-left: 0px;
  word-wrap: break-word;
}
.left_side .left_side_wrap .left_side_content ul li a {
  text-decoration: none;
  color: #1176d4;
  font-size: 14px;
}

.in_article_series_toc {
  display: none;
}

.sideroll {
  display: none;
}

footer {
  background-color: white;
  color: #333;
}
footer h3 {
  color: #333 !important;
}
footer a {
  color: #1176d4 !important;
}
footer .footer_copy {
  text-align: right;
}

@media screen and (max-width: 1279px) {
  .left_side {
    display: none;
  }
  .in_article_series_toc {
    display: block;
  }
  .prime_container {
    margin: 0 auto !important;
  }
}