@charset "UTF-8";
html,
body {
  font-family: sans-serif;
  font-size: 62.5%;
  word-break: break-all;
  word-wrap: break-word;
  color: #555;
}

body {
  font-size: 1.4rem;
}

* {
  box-sizing: border-box;
  margin: 0;
}

a {
  outline: none;
  color: #4d4d4d;
}

a:link, a:visited, a:hover, a:active {
  color: #4d4d4d;
}

ul {
  list-style: none;
  padding-left: 0;
}

pre,
code {
  font-family: sans-serif;
}

.dnone {
  display: none;
}

.f_smaller {
  font-size: 0.9em;
}

.alignL {
  text-align: left;
}

.alignC {
  text-align: center;
}

.alignR {
  text-align: right;
}

.mt0 {
  margin-top: 0;
}

.mt5 {
  margin-top: 5px;
}

.mt10 {
  margin-top: 10px;
}

.mt15 {
  margin-top: 15px;
}

.mt20 {
  margin-top: 20px;
}

.mt25 {
  margin-top: 25px;
}

.mt30 {
  margin-top: 30px;
}

.mt35 {
  margin-top: 35px;
}

.mt40 {
  margin-top: 40px;
}

.mb0 {
  margin-bottom: 0;
}

.mb5 {
  margin-bottom: 5px;
}

.mb10 {
  margin-bottom: 10px;
}

.mb15 {
  margin-bottom: 15px;
}

.mb20 {
  margin-bottom: 20px;
}

.mb25 {
  margin-bottom: 25px;
}

.mb30 {
  margin-bottom: 30px;
}

.mb35 {
  margin-bottom: 35px;
}

.mb40 {
  margin-bottom: 40px;
}

.ml0 {
  margin-left: 0;
}

.ml5 {
  margin-left: 5px;
}

.ml10 {
  margin-left: 10px;
}

.ml15 {
  margin-left: 15px;
}

.ml20 {
  margin-left: 20px;
}

.ml25 {
  margin-left: 25px;
}

.ml30 {
  margin-left: 30px;
}

.ml35 {
  margin-left: 35px;
}

.ml40 {
  margin-left: 40px;
}

.mr0 {
  margin-right: 0;
}

.mr5 {
  margin-right: 5px;
}

.mr10 {
  margin-right: 10px;
}

.mr15 {
  margin-right: 15px;
}

.mr20 {
  margin-right: 20px;
}

.mr25 {
  margin-right: 25px;
}

.mr30 {
  margin-right: 30px;
}

.mr35 {
  margin-right: 35px;
}

.mr40 {
  margin-right: 40px;
}

.pt0 {
  padding-top: 0;
}

.pt5 {
  padding-top: 5px;
}

.pt10 {
  padding-top: 10px;
}

.pt15 {
  padding-top: 15px;
}

.pt20 {
  padding-top: 20px;
}

.pt25 {
  padding-top: 25px;
}

.pt30 {
  padding-top: 30px;
}

.pt35 {
  padding-top: 35px;
}

.pt40 {
  padding-top: 40px;
}

.pb0 {
  padding-bottom: 0;
}

.pb5 {
  padding-bottom: 5px;
}

.pb10 {
  padding-bottom: 10px;
}

.pb15 {
  padding-bottom: 15px;
}

.pb20 {
  padding-bottom: 20px;
}

.pb25 {
  padding-bottom: 25px;
}

.pb30 {
  padding-bottom: 30px;
}

.pb35 {
  padding-bottom: 35px;
}

.pb40 {
  padding-bottom: 40px;
}

.pl0 {
  padding-left: 0;
}

.pl5 {
  padding-left: 5px;
}

.pl10 {
  padding-left: 10px;
}

.pl15 {
  padding-left: 15px;
}

.pl20 {
  padding-left: 20px;
}

.pl25 {
  padding-left: 25px;
}

.pl30 {
  padding-left: 30px;
}

.pl35 {
  padding-left: 35px;
}

.pl40 {
  padding-left: 40px;
}

.pr0 {
  padding-right: 0;
}

.pr5 {
  padding-right: 5px;
}

.pr10 {
  padding-right: 10px;
}

.pr15 {
  padding-right: 15px;
}

.pr20 {
  padding-right: 20px;
}

.pr25 {
  padding-right: 25px;
}

.pr30 {
  padding-right: 30px;
}

.pr35 {
  padding-right: 35px;
}

.pr40 {
  padding-right: 40px;
}

/* flex */
.flex {
  display: flex;
}

.flex img {
  height: auto;
}

/* link list */
.list_link li {
  display: block;
  position: relative;
  padding-left: 1rem;
}

.list_link li::before {
  position: absolute;
  top: 0.2em;
  left: 0;
  margin: auto;
  content: "";
  box-sizing: border-box;
  width: 4px;
  height: 4px;
  border: 4px solid transparent;
  border-left: 4px solid #999;
}

.list_link li span:last-child {
  color: #888;
}

/* list:disc */
.list_disc li {
  position: relative;
  padding-left: 1rem;
}

.list_disc li::before {
  position: absolute;
  top: 0.4em;
  left: 0;
  margin: auto;
  content: "";
  border-radius: 100%;
  background: #999;
  width: 0.34em;
  height: 0.34em;
}

/* list:kome */
.list_kome {
  padding-left: 1.2em;
  text-indent: -1.2em;
}

.list_kome li::before {
  content: "※ ";
}

/* pre + code */
.ex_code {
  border: solid 1px #999;
  padding: 1.5rem;
  white-space: pre-wrap;
  line-height: 1.8;
  color: #6d858b;
}

/* Header*/
.header {
  padding: 20px 0;
}

.header h1 {
  font-size: 2rem;
  font-weight: bold;
  margin: 0;
}

.header h1 + p {
  font-size: 1.2rem;
  margin: 5px 0 0;
}

.header h1 + p::before {
  content: ':: ';
}

/* Footer*/
.footer {
  margin: 20px 0;
}

.btn_index {
  display: block;
  margin: 30px auto;
  width: 15rem;
  text-align: center;
  background: rgba(0, 0, 0, 0.7);
  color: #fefefe;
  padding: 10px;
  position: relative;
}

.btn_index:link, .btn_index:visited, .btn_index:hover, .btn_index:active {
  text-decoration: none;
  color: #fefefe;
}

.btn_index::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.5em;
  margin: auto;
  content: "";
  vertical-align: middle;
  width: 4px;
  height: 4px;
  border-top: 1px solid #fefefe;
  border-right: 1px solid #fefefe;
  transform: rotate(45deg);
}

/*　to page top　*/
.btn_top {
  position: fixed;
}

.btn_top > a {
  display: block;
  border: dotted 1px #ccc;
  background: rgba(80, 80, 80, 0.1);
  padding: 10px;
  font-size: 2rem;
}

.btn_top > a:link, .btn_top > a:visited, .btn_top > a:hover, .btn_top > a:active {
  text-decoration: none;
}

.btn_top > a > span {
  display: none;
}

/*　menu　*/
.gnav {
  position: fixed;
  width: 100%;
  top: 0;
  right: 0;
  text-align: right;
}

.gnav a:link, .gnav a:visited, .gnav a:hover, .gnav a:active {
  text-decoration: none;
  color: #fefefe;
}

.gnav > div {
  max-height: 50%;
  overflow: auto;
  padding: 0.5em 0;
  background: rgba(0, 0, 0, 0.7);
  text-align: left;
  color: #fefefe;
}

.gnav > div ul li {
  display: block;
  border-bottom: dotted 1px #ccc;
}

.gnav > div ul li a {
  padding: 0.4em;
  line-height: 1.6;
  display: block;
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gnav > div ul li a span:not(:last-child) {
  display: none;
}

.gnav > p {
  position: relative;
}

.gnav > p > a,
.gnav > p > span {
  display: inline-block;
  text-align: center;
  background: rgba(0, 0, 0, 0.7);
  color: #fefefe;
  padding: 10px;
}

.gnav > p > span {
  border-left: dotted 1px rgba(255, 255, 255, 0.5);
}

.gnav li {
  border-bottom: dotted 1px #ccc;
}

/* page */
.page h2 {
  font-size: 1.8rem;
  font-weight: bold;
}

.page h2 > span:not(:last-child) {
  font-weight: normal;
  margin-right: 0.5em;
}

.page h2 > span:last-child {
  display: block;
}

.page h3 {
  font-size: 1.6rem;
  font-weight: bold;
}

.page .pub_date {
  margin: 10px 0 20px;
  text-align: right;
}

.page p,
.page li {
  line-height: 1.8;
}

.page .list_link li::before {
  top: 0.5em;
}

.page .list_disc li::before {
  top: 0.7em;
}

.page .update dt {
  font-weight: bold;
}

.page .update dt::before {
  display: inline-block;
  content: "＋";
  margin-right: 0.5em;
  background: #999;
  padding: 0.2em;
  line-height: 1.1;
  color: #fefefe;
  height: 1.1em;
}

.page .update dt.open::before {
  content: "－";
}

@media screen and (min-width: 1024px) {
  .forP {
    display: block;
  }
  .forP_inline {
    display: inline;
  }
  .forM,
  .forM_inline {
    display: none;
  }
  a {
    transition: all  0.3s ease;
  }
  a:link, a:visited {
    text-decoration: none;
  }
  a:hover, a:active {
    text-decoration: underline;
    opacity: 0.8;
  }
  .acc dt {
    cursor: pointer;
  }
  .content,
  .header {
    width: 1000px;
    margin: 0 auto;
  }
  .btn_index:hover {
    opacity: 0.7;
  }
  .btn_top {
    bottom: 20px;
    right: 24px;
  }
  .btn_top a:hover {
    opacity: 0.7;
  }
  .gnav ul {
    display: flex;
    flex-wrap: wrap;
    /*justify-content: space-between;*/
  }
  .gnav ul li {
    width: 32%;
  }
  .gnav ul li a:hover {
    background-color: rgba(0, 0, 0, 0.3);
  }
  .gnav ul li:nth-child(3n + 2) {
    margin: 0 2%;
  }
  .gnav > p {
    display: inline-block;
  }
  .gnav > p > a,
  .gnav > p > span {
    cursor: pointer;
    font-size: 1.2rem;
    width: 12rem;
    background: rgba(0, 0, 0, 0.75);
    position: relative;
    vertical-align: middle;
  }
  .gnav > p > a:hover,
  .gnav > p > span:hover {
    opacity: 0.7;
  }
  .gnav > p > a::before,
  .gnav > p > span::before {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0.5em;
    margin: auto;
    content: "";
    vertical-align: middle;
    width: 4px;
    height: 4px;
    border-top: 1px solid #fefefe;
    border-right: 1px solid #fefefe;
    transform: rotate(45deg);
  }
  .gnav > p > span::before {
    transform: rotate(135deg);
  }
  .gnav > p > span.open::before {
    transform: rotate(315deg);
  }
  /* page */
  .page h2 {
    line-height: 1.6;
  }
  .page h2 > span:not(:last-child) {
    font-size: 1.4rem;
  }
  .page h3 {
    line-height: 1.6;
  }
}

@media screen and (max-width: 1023px) {
  .forP,
  .forP_inline {
    display: none;
  }
  .forM {
    display: block;
  }
  .forM_inline {
    display: inline;
  }
  .content,
  .header {
    width: 100%;
    padding: 0 1rem;
  }
  .header {
    padding: 20px 1rem;
  }
  .break_pad {
    margin: 0 -1rem;
  }
  .btn_top {
    bottom: 4rem;
    right: 1rem;
  }
  .gnav > a,
  .gnav > span {
    font-size: 1.6rem;
  }
  .gnav > p > a i,
  .gnav > p > span i {
    min-width: 1em;
  }
  .gnav.mobile {
    height: 100%;
  }
  /* page */
  .page h2 {
    line-height: 1.4;
  }
  .page h2 > span:not(:last-child) {
    font-size: 1.2rem;
  }
  .page h3 {
    line-height: 1.4;
  }
  .page .pub_date {
    font-size: 1.2rem;
  }
}