body {
  color: #4d4d4d;
  background-color: #f6f6f4;
  font-weight: 100;
  margin: 0;
}

a {
  color: #0bd;
}

a:visited {
  color: #0bd;
}

.header {
  width: 100%;
  padding: 15px 0;
  margin: 0 auto;
  background-color: black;
  text-align: center;
}

.header_website-name a {
  color: white;
  text-decoration: none;
  margin: 0 0 auto;
  display: inline-block;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  font-family: "noto serif", serif;
  font-size: 32px;
}

.header_nav-list {
  text-align: center;
  padding: 10px 0;
  margin: 0 auto;
}

.header_nav-list_item {
  list-style: none;
  display: inline-block;
  margin: 0 20px;
}

.header_nav-list_item a {
  color: white;
  text-decoration: none;
}

.header_nav-list_item a:hover {
  text-decoration: underline;
}

.content {
  width: 1080px;
  margin: 20px;
  margin: 0 auto;
  display: -ms-grid;
  display: grid;
}

@media screen and (min-width: 1080px) {
  .content {
        grid-template-areas: "header  index" "article index" "footer  index";
    -ms-grid-columns: 75% 25%;
        grid-template-columns: 75% 25%;
  }
}

@media screen and (max-width: 1080px) {
  .content {
    width: 100%;
    background-color: white;
        grid-template-areas: "header " "index  " "article" "footer ";
    margin: 0 auto;
  }
}

.content_header {
  grid-area: header;
  padding: 1%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: flex-end;
  background-color: white;
}

.content_header_breadcrumbs {
  width: 100%;
}

.content_header_breadcrumbs_list {
  padding-left: 0px;
}

.content_header_breadcrumbs_list_item {
  display: inline;
  list-style-type: none;
}

.content_header_breadcrumbs_list_item:before {
  content: " > ";
}

.content_header_breadcrumbs_list_item:first-child:before {
  content: none;
}

.content_header_title {
  width: 100%;
  font-size: 2.5em;
  font-weight: bold;
  padding: 0 1%;
  border-bottom: 2px solid black;
}

.content_header_time {
  font-size: smaller;
  display: inline-block;
  margin-top: 0px;
  margin-left: 10%;
}

.content_header_time_create-at {
  display: inline-block;
}

.content_header_time_update-at {
  display: inline-block;
}

.content_header_tag-list {
  font-size: smaller;
  display: inline-block;
  margin-top: 0px;
  margin-left: 10%;
  padding: 0;
}

.content_header_tag-list_item {
  display: inline-block;
  margin: 0 5px;
  list-style: none;
  position: relative;
}

.content_header_tag-list_item a {
  text-decoration: none;
  color: inherit;
}

.content_header_tag-list_item a:hover {
  text-decoration: underline;
}

.content_header_abstract {
  width: 100%;
}

.content_index {
  grid-area: index;
  margin: 1rem;
}

.content_index_box {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  padding: 1rem;
}

.content_index_box_label:hover {
  text-decoration: underline;
}

.content_index_box input {
  display: none;
}

@media screen and (min-width: 1080px) {
  .content_index_box input + ul {
    display: block;
  }
}

@media screen and (max-width: 1080px) {
  .content_index_box input + ul {
    display: none;
  }
}

.content_index_box input:checked + ul {
  display: block;
}

.content_index_box ul {
  display: block;
  list-style: none;
  padding-left: 1rem;
}

.content_index_box ul a {
  display: block;
  padding: 4px 8px;
  color: #85837a;
  text-decoration: none;
  line-height: 1;
}

.content_index_box ul a:hover {
  background-color: #e6e5e0;
  color: #333;
}

.content_index_box ul a.__highlight {
  background-color: #e6e5e0;
  color: #333;
}

.content_main {
  background-color: white;
  grid-area: article;
  padding: 3%;
}

.content_main_article h1 {
  padding-bottom: .5em;
  border-bottom: 3px solid #ccc;
}

.content_main_article h2 {
  border-bottom: 1px solid #ccc;
}

.content_main_article h3 {
  display: inline-block;
  border-bottom: 1px solid #ccc;
}

.content_main_article img {
  width: 90%;
}

.content_main_child-contents_headline {
  border-top: 1px solid black;
  border-bottom: 1px solid black;
}

.content_main_child-contents_list {
  padding: 0 3%;
}

.content_main_child-contents_list_item {
  border-bottom: 1px solid #ccc;
}

.content_main_child-contents_list_item:first-child {
  border-top: 1px solid #ccc;
}

.content_main_child-contents_list_item dt {
  font-size: 20px;
}

.content_footer {
  grid-area: footer;
  background-color: white;
  padding: 1%;
}

.content_footer_brother {
  overflow: hidden;
}

.content_footer_brother a {
  border-bottom: 1px #ddd solid;
  display: block;
  text-decoration: none;
  padding: 14px 40px;
  color: #0bd;
  position: relative;
  display: inline-block;
  padding-left: 20px;
}

.content_footer_brother a:hover {
  background-color: #f6f6f6;
}

.content_footer_brother_prev {
  text-align: left;
  float: left;
  position: relative;
  display: block;
  padding-left: 20px;
}

.content_footer_brother_prev::before {
  content: '';
  width: 10px;
  height: 10px;
  border: 0px;
  border-top: solid 2px #5bc0de;
  border-right: solid 2px #5bc0de;
  -webkit-transform: rotate(-225deg);
  transform: rotate(225deg);
  position: absolute;
  top: 50%;
  left: 5%;
  margin-top: -4px;
}

.content_footer_brother_prev_label {
  font-size: .825rem;
  color: #000;
  margin-bottom: 10px;
}

.content_footer_brother_next {
  text-align: right;
  float: right;
  position: relative;
  display: block;
  padding-left: 20px;
}

.content_footer_brother_next::after {
  content: '';
  width: 10px;
  height: 10px;
  border: 0px;
  border-top: solid 2px #5bc0de;
  border-right: solid 2px #5bc0de;
  -webkit-transform: rotate(-225deg);
  transform: rotate(45deg);
  position: absolute;
  top: 50%;
  right: 5%;
  margin-top: -4px;
}

.content_footer_brother_next_label {
  font-size: .825rem;
  color: #000;
  margin-bottom: 10px;
}

.content_footer_meta {
  border-top: 2px solid black;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: flex-end;
}

.content_footer_meta_breadcrumbs {
  font-size: smaller;
  display: inline-block;
  margin-top: 0px;
  margin-left: 10%;
}

.content_footer_meta_breadcrumbs_list {
  margin: 0;
  display: inline-block;
}

.content_footer_meta_breadcrumbs_list_item {
  display: inline;
  list-style-type: none;
}

.content_footer_meta_breadcrumbs_list_item:before {
  content: " > ";
}

.content_footer_meta_breadcrumbs_list_item:first-child:before {
  content: none;
}

.content_footer_meta_time {
  font-size: smaller;
  display: inline-block;
  margin-top: 0px;
  margin-left: 10%;
}

.content_footer_meta_time_create-at {
  display: inline-block;
}

.content_footer_meta_time_update-at {
  display: inline-block;
}

.content_footer_meta_tag-list {
  font-size: smaller;
  display: inline-block;
  margin-top: 0px;
  margin-left: 10%;
  padding: 0;
}

.content_footer_meta_tag-list_item {
  display: inline-block;
  margin: 0 5px;
  list-style: none;
  position: relative;
}

.content_footer_meta_tag-list_item a {
  text-decoration: none;
  color: inherit;
}

.content_footer_meta_tag-list_item a:hover {
  text-decoration: underline;
}

.footer {
  width: 100%;
  text-align: center;
  background-color: black;
}

.footer .footer_text {
  color: white;
}
/*# sourceMappingURL=style.css.map */