@charset "UTF-8";
/*!
Theme Name: The Footprint Main Theme 2019 Edition
Author: Tomo
Author URI: http://zakki-ts.net/
Description: My site's original theme 2019 Edition. use Bootstrap4 and Sass. Full Responsive and Simple and Useful. 'Heisei' Age Last Release.
Version: 3.0.0
*/
/* reset */
html, body, header, footer, div, h1, h2, h3, h4, h5, h6, span, object, iframe, p, blockquote, pre, abbr, address, cite, code, del, dfn, em, img, ins, kbd, q, samp, small, strong, sub, sup, var, b, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, figcaption, figure, hgroup, menu, nav, section, summary, time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
}

i {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
}

html, body {
  width: 100vw;
  box-sizing: border-box;
  overflow-x: hidden;
  -webkit-appearance: none;
  position: relative;
  line-height: 1;
  background: white;
  color: #333;
}
@media (prefers-color-scheme: dark) {
  html, body {
    background: #333;
    color: white;
  }
}

article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
  display: block;
}

nav ul {
  list-style: none;
}

blockquote, q {
  quotes: none;
}

blockquote:before, blockquote:after, q:before, q:after {
  content: '';
  content: none;
}

a {
  margin: 0;
  padding: 0;
}

/* change colours to suit your needs */
ins {
  background-color: #ff9;
  color: #000;
  text-decoration: none;
}

/* change colours to suit your needs */
mark {
  background-color: #ff9;
  color: #000;
  font-style: italic;
  font-weight: bold;
}

del {
  text-decoration: line-through;
}

abbr[title], dfn[title] {
  border-bottom: 1px dotted;
  cursor: help;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* change border colour to suit your needs */
hr {
  display: block;
  height: 1px;
  border: 0;
  border-top: 1px solid #cccccc;
  margin: 1em 0;
  padding: 0;
}

input, select {
  vertical-align: middle;
}

/* Bootstrap 4 Fix */
.breadcrumb {
  background: transparent !important;
}
@media (max-width: 575.98px) {
  .breadcrumb li {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .breadcrumb li {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .breadcrumb li {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .breadcrumb li {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  .breadcrumb li {
    font-size: 16px;
  }
}
.breadcrumb li a {
  color: #004579;
  text-decoration: underline;
}
@media (prefers-color-scheme: dark) {
  .breadcrumb li a {
    color: #acdbff;
  }
}
.breadcrumb li a:hover, .breadcrumb li a:active {
  text-decoration: none;
  color: #4BB8EC;
}
.breadcrumb li a:hover {
  transition: all 0.5s;
}
.breadcrumb li:not(:first-child)::before {
  content: "＞";
  margin: 0 0.3em;
}

.navbar {
  margin: 0;
  padding: 0;
}

.news a, aside a {
  color: #004579;
}
@media (prefers-color-scheme: dark) {
  .news a, aside a {
    color: #acdbff;
  }
}
a[data-target="#navbarSupportedContent"] i {
  font-style: normal;
}
a[data-target="#navbarSupportedContent"][aria-expanded="false"] i::before {
  font-family: 'dashicons';
  content: "\f333";
  color: white;
  font-size: 100%;
}
a[data-target="#navbarSupportedContent"][aria-expanded="true"] i::before {
  font-family: 'dashicons';
  content: "\f335";
  color: white;
  font-size: 100%;
}

.btn {
  background: #4BB8EC !important;
  color: white !important;
  padding: 0.4em 0.75em;
  box-sizing: border-box;
}
.btn * {
  color: white;
  box-sizing: border-box;
}
.btn i {
  line-height: 1;
  font-size: 125%;
  font-style: normal;
}
.btn:hover, .btn:active {
  color: white;
  background: #1da6e7 !important;
}
.btn:hover {
  transition: all 0.5s;
}

footer a.nav-link {
  color: #004579;
}
@media (prefers-color-scheme: dark) {
  footer a.nav-link {
    color: #acdbff;
  }
}
footer a.nav-link:hover, footer a.nav-link:active {
  color: #4BB8EC;
}
@media (prefers-color-scheme: dark) {
  footer a.nav-link:hover, footer a.nav-link:active {
    color: white;
  }
}
footer a.nav-link:hover {
  transition: all 0.5s;
}

.card-img-top img {
  width: 100%;
  height: auto;
  max-width: 320px;
}

.carousel {
  background: #232323 !important;
  display: flex;
  flex-wrap: wrap;
  box-sizing: border-box;
  justify-content: center;
  align-items: center;
}

@media (prefers-color-scheme: dark) {
  .carousel-inner {
    background: transparent !important;
  }
}

.carousel-item > img {
  filter: brightness(40%);
  width: 100% !important;
  height: auto;
}
.carousel-item a {
  color: white !important;
  text-shadow: 0 0 2px rgba(255, 255, 255, 0.4);
}
.carousel-item a:hover, .carousel-item a:active {
  text-decoration: underline;
}
.carousel-item p, .carousel-item a {
  font-size: 3vw;
}

.carousel-caption {
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  padding-right: 0 !important;
  padding-left: 0 !important;
  width: 100%;
  height: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.carousel-caption p {
  width: 70%;
  text-align: left;
  padding: 1em;
}

@media (prefers-color-scheme: dark) {
  .dropdown-menu {
    background: #333;
  }
}

@media (prefers-color-scheme: dark) {
  .card {
    background: #333 !important;
    border: white 1px solid;
  }
}

/* WordPress Gutenbergエディタ対応版 */
article h1, section h1 {
  clear: both;
  -webkit-text-shadow: rgba(0, 69, 121, 0.3);
  font-weight: 700;
  position: relative;
  padding: 0.5em 1em;
  box-sizing: border-box;
  box-shadow: 1px 1px 1px 1px rgba(75, 184, 236, 0.3), -1px -1px 1px 1px rgba(0, 69, 121, 0.3);
  background: linear-gradient(315deg, #4BB8EC 0%, #004579 100%);
  -webkit-background-clip: text;
  color: transparent;
  margin-bottom: 1.5em;
  margin-top: 1.5em;
  border-radius: 0.75em 1em 0.3em 0.5em/0.2em 0.3em 0.7em 0.1em;
}
@media (prefers-color-scheme: dark) {
  article h1, section h1 {
    background: linear-gradient(315deg, #a7dcf6 0%, #007fdf 100%);
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-shadow: rgba(0, 98, 172, 0.3);
    font-weight: 700;
    position: relative;
    padding: 0.5em 1em;
    box-sizing: border-box;
    box-shadow: 1px 1px 1px 1px rgba(121, 202, 241, 0.3), -1px -1px 1px 1px rgba(0, 98, 172, 0.3);
  }
}
@media (max-width: 575.98px) {
  article h1, section h1 {
    font-size: 5vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article h1, section h1 {
    font-size: 4vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article h1, section h1 {
    font-size: 3.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article h1, section h1 {
    font-size: 24px;
  }
}
@media (min-width: 1200px) {
  article h1, section h1 {
    font-size: 30px;
  }
}
article h1::after, section h1::after {
  position: absolute;
  left: 0.25em;
  top: 15%;
  content: "";
  width: 6px;
  height: 70%;
  background: linear-gradient(225deg, #4BB8EC 0%, #004579 100%);
  border-radius: 4px;
}

article h2, section h2 {
  clear: both;
  position: relative;
  border-bottom: 3px double #004579;
  padding: 0.5em 1em;
  border-radius: 0 0 1.5em 0;
  margin-bottom: 1.3em;
  margin-top: 1.3em;
  background: linear-gradient(195deg, rgba(0, 69, 121, 0) 0%, rgba(0, 69, 121, 0) 80%, rgba(0, 69, 121, 0.25) 100%);
  color: #004579;
  text-shadow: 0 0 2px white;
}
@media (prefers-color-scheme: dark) {
  article h2, section h2 {
    background: linear-gradient(195deg, rgba(75, 184, 236, 0) 0%, rgba(75, 184, 236, 0) 80%, rgba(75, 184, 236, 0.25) 100%);
    color: #79caf1;
    text-shadow: 0 0 2px #004579;
  }
}
@media (max-width: 575.98px) {
  article h2, section h2 {
    font-size: 4.4vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article h2, section h2 {
    font-size: 3.6vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article h2, section h2 {
    font-size: 2.8vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article h2, section h2 {
    font-size: 22px;
  }
}
@media (min-width: 1200px) {
  article h2, section h2 {
    font-size: 26px;
  }
}
article h2::after, section h2::after {
  position: absolute;
  left: 0;
  bottom: 0;
  content: "";
  width: 4px;
  height: 100%;
  background: linear-gradient(225deg, #4BB8EC 0%, #004579 100%);
  border-radius: 2px 2px 0 0;
}

article h3, section h3 {
  clear: both;
  position: relative;
  border-bottom: 2px solid #004579;
  padding: 0.5em 1em;
  margin-bottom: 1.2em;
  margin-top: 1.2em;
}
@media (max-width: 575.98px) {
  article h3, section h3 {
    font-size: 4vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article h3, section h3 {
    font-size: 3.2vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article h3, section h3 {
    font-size: 2.4vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article h3, section h3 {
    font-size: 20px;
  }
}
@media (min-width: 1200px) {
  article h3, section h3 {
    font-size: 24px;
  }
}
article h3::after, section h3::after {
  position: absolute;
  left: 0;
  bottom: 0;
  content: "";
  width: 6px;
  height: 100%;
  background: linear-gradient(225deg, #4BB8EC 0%, #004579 100%);
}

article h4, section h4 {
  clear: both;
  position: relative;
  border-bottom: 1px solid #4BB8EC;
  padding: 0.5em 1em;
  margin-bottom: 1em;
  margin-top: 1em;
}
@media (max-width: 575.98px) {
  article h4, section h4 {
    font-size: 3.5vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article h4, section h4 {
    font-size: 2.7vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article h4, section h4 {
    font-size: 2vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article h4, section h4 {
    font-size: 16px;
  }
}
@media (min-width: 1200px) {
  article h4, section h4 {
    font-size: 20px;
  }
}
article h4::after, section h4::after {
  position: absolute;
  left: 0;
  bottom: 0;
  content: "";
  width: 6px;
  height: 100%;
  background: linear-gradient(225deg, #004579 0%, #4BB8EC 100%);
}

article h5, section h5 {
  clear: both;
  margin-bottom: 0.7em;
  margin-top: 0.7em;
}
@media (max-width: 575.98px) {
  article h5, section h5 {
    font-size: 3vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article h5, section h5 {
    font-size: 2.4vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article h5, section h5 {
    font-size: 1.6vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article h5, section h5 {
    font-size: 14px;
  }
}
@media (min-width: 1200px) {
  article h5, section h5 {
    font-size: 18px;
  }
}
article h5::before, section h5::before {
  content: "●";
  margin-right: 0.5em;
  color: #004579;
}
article h5.card-title, section h5.card-title {
  border-top: 3px double #004579;
  border-bottom: 3px double #004579;
  color: #004579;
}
@media (prefers-color-scheme: dark) {
  article h5.card-title, section h5.card-title {
    border-top: 3px double #acdbff;
    border-bottom: 3px double #acdbff;
  }
}
article h5.card-title a, section h5.card-title a {
  color: #004579;
  font-weight: 700;
}
@media (prefers-color-scheme: dark) {
  article h5.card-title a, section h5.card-title a {
    color: #acdbff;
  }
}
article h5.card-title a:hover, article h5.card-title a:active, section h5.card-title a:hover, section h5.card-title a:active {
  color: #4BB8EC;
}
@media (prefers-color-scheme: dark) {
  article h5.card-title a:hover, article h5.card-title a:active, section h5.card-title a:hover, section h5.card-title a:active {
    color: white;
  }
}
article h5.card-title a:hover, section h5.card-title a:hover {
  transition: all 0.5s;
}
article h5.card-title::before, section h5.card-title::before {
  content: none;
}
aside h5, .news h5 {
  margin-bottom: 1em;
  font-weight: 700;
  position: relative;
  padding: 0 0 0.5em 1em;
}
@media (max-width: 575.98px) {
  aside h5, .news h5 {
    font-size: 3.5vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  aside h5, .news h5 {
    font-size: 2.7vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  aside h5, .news h5 {
    font-size: 2vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  aside h5, .news h5 {
    font-size: 16px;
  }
}
@media (min-width: 1200px) {
  aside h5, .news h5 {
    font-size: 20px;
  }
}
aside h5::after, .news h5::after {
  position: absolute;
  left: 0;
  bottom: 0;
  content: "";
  width: 100%;
  height: 3px;
  background: linear-gradient(225deg, #004579 0%, #4BB8EC 100%);
}

article h6, section h6 {
  clear: both;
  margin-bottom: 0.5em;
  margin-top: 0.5em;
}
@media (max-width: 575.98px) {
  article h6, section h6 {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article h6, section h6 {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article h6, section h6 {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article h6, section h6 {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  article h6, section h6 {
    font-size: 16px;
  }
}
article h6::before, section h6::before {
  content: "・";
  margin-right: 0.25em;
}

@keyframes twitterbirdAction {
  0% {
    transform: rotateZ(0deg);
  }
  25% {
    transform: rotateZ(-30deg);
  }
  50% {
    transform: rotateZ(0deg);
  }
  75% {
    transform: rotateZ(30deg);
  }
  100% {
    transform: rotateZ(0deg);
  }
}
i.dashicons-twitter {
  color: #00aced;
  margin: auto 0.25em;
}
i.dashicons-twitter:hover, i.dashicons-twitter:active {
  color: #00aced !important;
  animation: twitterbirdAction 2s ease 0s infinite normal;
}

article p, section p {
  margin-bottom: 1em;
}
@media (max-width: 575.98px) {
  article p, section p {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article p, section p {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article p, section p {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article p, section p {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  article p, section p {
    font-size: 16px;
  }
}
p.has-drop-cap::first-letter {
  background: linear-gradient(0deg, #4BB8EC 0%, #004579 100%);
  background-size: 150% 150%;
  -webkit-background-clip: text;
  color: transparent;
  font-weight: 700;
  box-sizing: border-box;
  padding-bottom: 0.3em;
}

@media (max-width: 575.98px) {
  .wp-block-quote cite {
    font-size: 2.4vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .wp-block-quote cite {
    font-size: 1.8vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .wp-block-quote cite {
    font-size: 1vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .wp-block-quote cite {
    font-size: 10px;
  }
}
@media (min-width: 1200px) {
  .wp-block-quote cite {
    font-size: 13px;
  }
}

ul {
  clear: both;
  padding-left: 1em;
}
@media (max-width: 575.98px) {
  article ul li, section ul li {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article ul li, section ul li {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article ul li, section ul li {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article ul li, section ul li {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  article ul li, section ul li {
    font-size: 16px;
  }
}
ul.single_page_navi, .news ul {
  list-style: none;
}
.tags ul, .social ul {
  list-style: none;
  display: flex;
}
.news ul {
  width: 100%;
}

ol {
  padding-left: 1em;
}
@media (max-width: 575.98px) {
  article ol, section ol {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  article ol, section ol {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  article ol, section ol {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  article ol, section ol {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  article ol, section ol {
    font-size: 16px;
  }
}

.wp-block-cover {
  margin-bottom: 1em;
}

.wp-block-image {
  margin-bottom: 1em;
}

.wp-block-gallery {
  margin-bottom: 1em;
}

.wp-block-media-text {
  margin-bottom: 1em;
  clear: both;
}

.wp-block-embed > .wp-block-embed__wrapper {
  width: 100%;
}
.wp-block-embed > figcaption {
  text-align: center;
}
.wp-block-embed.alignleft {
  float: left;
  margin-right: 1em;
}
.wp-block-embed.aligncenter {
  margin-right: auto;
  margin-left: auto;
}
.wp-block-embed.aligncenter::after {
  clear: both;
}
.wp-block-embed.alignright {
  float: right;
  margin-left: 1em;
}

.wp-block-embed-youtube > .wp-block-embed__wrapper {
  position: relative;
  padding-top: 56.25%;
}
.wp-block-embed-youtube > .wp-block-embed__wrapper iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  right: 0;
}

.wp-block-code {
  box-sizing: border-box;
  background: #232323;
}

.wp-pagenavi {
  margin: 2em 0;
  clear: both;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
@media (max-width: 575.98px) {
  .wp-pagenavi > span, .wp-pagenavi > a {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .wp-pagenavi > span, .wp-pagenavi > a {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .wp-pagenavi > span, .wp-pagenavi > a {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .wp-pagenavi > span, .wp-pagenavi > a {
    font-size: 12px;
  }
}
@media (min-width: 1200px) {
  .wp-pagenavi > span, .wp-pagenavi > a {
    font-size: 16px;
  }
}
.wp-pagenavi > span {
  background: #4BB8EC;
  color: white;
  padding: 0.2em 0.6em !important;
  border: none;
}
.wp-pagenavi > a {
  background: white;
  color: #004579;
  padding: 0.2em 0.6em !important;
  border: none;
}
.wp-pagenavi > a:hover, .wp-pagenavi > a:active {
  background: #004579;
  color: white;
}
.wp-pagenavi > a:hover {
  transition: all 0.5s;
}

.tags {
  display: flex;
}

/*テーマ独自実装*/
* {
  line-height: 1.5;
  font-family: source-han-sans-japanese, sans-serif;
}

article, section {
  background: white;
}
@media (prefers-color-scheme: dark) {
  article, section {
    background: #333;
  }
}
article *, section * {
  line-height: 1.8;
}

aside ul, aside ol {
  list-style: none;
  padding: 0.5em 1em;
}
aside div {
  margin-bottom: 1.5em;
}

.liner {
  height: 4px;
  background: linear-gradient(45deg, #4BB8EC 0%, #004579 100%);
  overflow-y: hidden;
}

#fixbtns {
  opacity: 0;
  bottom: 4em;
  background: rgba(0, 0, 0, 0);
}

header, footer {
  background: linear-gradient(225deg, #fafdff 0%, #e2f2ff 100%);
  width: 100vw;
  box-sizing: border-box;
}
@media (prefers-color-scheme: dark) {
  header, footer {
    background: linear-gradient(225deg, #0b4b6a 0%, black 100%) !important;
  }
}
header h1 a, footer h1 a {
  padding-top: 0.5em;
  padding-bottom: 0.5em;
  box-sizing: border-box;
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  text-decoration: none !important;
}
header h1 a img, footer h1 a img {
  width: 18%;
  height: auto;
  margin-right: 2%;
}
header h1 a p, footer h1 a p {
  background: -webkit-linear-gradient(bottom right, #4BB8EC 0%, #004579 100%);
  font-family: vdl-logog, sans-serif;
  font-weight: 400;
  font-style: normal;
  background: -o-linear-gradient(bottom right, #4BB8EC 0%, #004579 100%);
  background: linear-gradient(to top left, #4BB8EC 0%, #004579 100%);
  -webkit-background-clip: text;
  color: transparent;
  color: #004579;
}
@media (prefers-color-scheme: dark) {
  header h1 a p, footer h1 a p {
    color: #4BB8EC;
  }
}
@media (max-width: 575.98px) {
  header h1 a p, footer h1 a p {
    font-size: 6vw !important;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  header h1 a p, footer h1 a p {
    font-size: 4.5vw !important;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  header h1 a p, footer h1 a p {
    font-size: 3.6vw !important;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  header h1 a p, footer h1 a p {
    font-size: 28px !important;
  }
}
@media (min-width: 1200px) {
  header h1 a p, footer h1 a p {
    font-size: 36px !important;
  }
}
header h1 a p:hover, header h1 a p:active, footer h1 a p:hover, footer h1 a p:active {
  background: -webkit-linear-gradient(bottom right, #139aff 0%, #d5effb 100%);
  background: -o-linear-gradient(bottom right, #139aff 0%, #d5effb 100%);
  background: linear-gradient(to top left, #139aff 0%, #d5effb 100%);
  -webkit-background-clip: text;
  color: transparent;
}
header h1 a p:hover, footer h1 a p:hover {
  transition: all 0.5s;
}
@media (max-width: 575.98px) {
  header #hnav p, footer #hnav p {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  header #hnav p, footer #hnav p {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  header #hnav p, footer #hnav p {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  header #hnav p, footer #hnav p {
    font-size: 14px;
  }
}
@media (min-width: 1200px) {
  header #hnav p, footer #hnav p {
    font-size: 12px;
  }
}
header nav dl, header nav ol, header nav ul, header nav p, footer nav dl, footer nav ol, footer nav ul, footer nav p {
  margin-bottom: 0;
}

footer small a, footer p a {
  color: #004579;
}
@media (prefers-color-scheme: dark) {
  footer small a, footer p a {
    color: white;
  }
}

#head_nav a {
  color: #333;
}
@media (prefers-color-scheme: dark) {
  #head_nav a {
    color: white;
  }
}
#head_nav a.nav-link {
  padding-left: 1em;
  padding-right: 1em;
  text-align: center;
  box-sizing: border-box;
}
#head_nav a.nav-link:hover, #head_nav a.nav-link:active {
  background: linear-gradient(45deg, #4BB8EC 0%, #004579 100%);
  color: white;
}
#head_nav a.nav-link:hover *, #head_nav a.nav-link:active * {
  color: white;
}
#head_nav a.nav-link:hover {
  transition: all 0.5s;
}

@media (max-width: 575.98px) {
  p.pubdate {
    font-size: 2.6vw;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  p.pubdate {
    font-size: 2.1vw;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  p.pubdate {
    font-size: 1.3vw;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  p.pubdate {
    font-size: 10px;
  }
}
@media (min-width: 1200px) {
  p.pubdate {
    font-size: 12px;
  }
}

a {
  color: #004579;
}
@media (prefers-color-scheme: dark) {
  a {
    color: #acdbff;
  }
}
a:hover, a:active {
  color: #4BB8EC;
}
@media (prefers-color-scheme: dark) {
  a:hover, a:active {
    color: white;
  }
}
a:hover {
  transition: all 0.5s;
}
a img:hover, a img:active {
  opacity: 0.8;
}

.entry_time {
  clear: both;
}

.table_of_contents {
  border: 1px solid #CCC;
  background: #fafdff;
  display: sticky;
}
@media (prefers-color-scheme: dark) {
  .table_of_contents {
    background: #333;
  }
}
.table_of_contents ul {
  list-style: none;
}
.table_of_contents a, .table_of_contents p {
  color: #004579;
}
@media (prefers-color-scheme: dark) {
  .table_of_contents a, .table_of_contents p {
    color: #acdbff;
  }
}
.table_of_contents a:hover, .table_of_contents a:active, .table_of_contents p:hover, .table_of_contents p:active {
  color: #4BB8EC;
}
@media (prefers-color-scheme: dark) {
  .table_of_contents a:hover, .table_of_contents a:active, .table_of_contents p:hover, .table_of_contents p:active {
    color: white;
  }
}
.table_of_contents a:hover, .table_of_contents p:hover {
  transition: all 0.5s;
}
.table_of_contents a.tocshow[aria-expanded="true"] i::before, .table_of_contents p.tocshow[aria-expanded="true"] i::before {
  content: "非";
}
.table_of_contents > ul > li {
  font-weight: 700;
}
.table_of_contents > ul > li > ul {
  border-left: 2px solid #4BB8EC;
  padding-left: 0.5em;
  margin-left: 0.5em;
}
.table_of_contents > ul > li > ul > li {
  font-weight: 400;
}
.table_of_contents > ul > li > ul > li > ul {
  border-left: 2px solid #4BB8EC;
  padding-left: 0.5em;
  margin-left: 0.5em;
}
.table_of_contents > ul > li > ul > li > ul > li > ul {
  border-left: 1px solid #4BB8EC;
  padding-left: 0.5em;
  margin-left: 0.5em;
}
.table_of_contents > ul > li > ul > li > ul > li > ul > li > ul {
  border-left: 1px solid #4BB8EC;
  padding-left: 0.5em;
  margin-left: 0.5em;
}

#tAd, .mBAd, .sBAd {
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  align-items: center;
}
#tAd ins, .mBAd ins, .sBAd ins {
  box-sizing: border-box;
}
#tAd ins.topAd, .mBAd ins.topAd, .sBAd ins.topAd {
  display: inline-block;
  width: 100%;
  background: transparent;
  max-width: 970px;
}
@media (min-width: 800px) and (max-width: 999.98px) {
  #tAd ins.topAd, .mBAd ins.topAd, .sBAd ins.topAd {
    max-width: 728px;
  }
}
@media (min-width: 500px) and (max-width: 799.98px) {
  #tAd ins.topAd, .mBAd ins.topAd, .sBAd ins.topAd {
    max-width: 336px;
  }
}
@media (max-width: 499.98px) {
  #tAd ins.topAd, .mBAd ins.topAd, .sBAd ins.topAd {
    max-width: 300px;
  }
}
#tAd ins.middleBottomAd, .mBAd ins.middleBottomAd, .sBAd ins.middleBottomAd {
  display: inline-block;
  width: 100%;
  background: transparent;
  max-width: 728px;
}
@media (min-width: 500px) and (max-width: 799.98px) {
  #tAd ins.middleBottomAd, .mBAd ins.middleBottomAd, .sBAd ins.middleBottomAd {
    max-width: 336px;
  }
}
@media (max-width: 499.98px) {
  #tAd ins.middleBottomAd, .mBAd ins.middleBottomAd, .sBAd ins.middleBottomAd {
    max-width: 300px;
  }
}
#tAd ins.sideBottomAd, .mBAd ins.sideBottomAd, .sBAd ins.sideBottomAd {
  display: inline-block;
  width: 100%;
  max-width: 300px;
  background: transparent;
}

.page_head {
  width: 100%;
}
.page_head img {
  width: auto;
  height: auto;
  max-height: 100%;
  max-width: 100%;
}

#top_head {
  border-bottom: 1px solid #DDD;
  margin-bottom: 2em;
}

.news .btn {
  color: white !important;
}

@media (max-width: 575.98px) {
  .imgsm {
    display: block !important;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .imgsm {
    display: none;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .imgsm {
    display: none;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .imgsm {
    display: none;
  }
}
@media (min-width: 1200px) {
  .imgsm {
    display: none;
  }
}

@media (max-width: 575.98px) {
  .imgmd {
    display: none;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .imgmd {
    display: block !important;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .imgmd {
    display: none;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .imgmd {
    display: none;
  }
}
@media (min-width: 1200px) {
  .imgmd {
    display: none;
  }
}

@media (max-width: 575.98px) {
  .imglg {
    display: none;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .imglg {
    display: none;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .imglg {
    display: block !important;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .imglg {
    display: none;
  }
}
@media (min-width: 1200px) {
  .imglg {
    display: none;
  }
}

@media (max-width: 575.98px) {
  .imgxl {
    display: none;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .imgxl {
    display: none;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .imgxl {
    display: none;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .imgxl {
    display: block !important;
  }
}
@media (min-width: 1200px) {
  .imgxl {
    display: none;
  }
}

@media (max-width: 575.98px) {
  .imgfl {
    display: none;
  }
}
@media (max-width: 767.98px) and (min-width: 576px) {
  .imgfl {
    display: none;
  }
}
@media (max-width: 991.98px) and (min-width: 768px) {
  .imgfl {
    display: none;
  }
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .imgfl {
    display: none;
  }
}
@media (min-width: 1200px) {
  .imgfl {
    display: block !important;
  }
}

.twitter-dark {
  display: none;
  overflow: hidden;
}
@media (prefers-color-scheme: no-prefers) {
  .twitter-dark {
    display: none !important;
    overflow: hidden;
  }
}
@media (prefers-color-scheme: dark) {
  .twitter-dark {
    display: block !important;
  }
}

.twitter-light {
  display: block;
}
@media (prefers-color-scheme: no-prefers) {
  .twitter-light {
    display: block !important;
  }
}
@media (prefers-color-scheme: dark) {
  .twitter-light {
    display: none !important;
    overflow: hidden;
  }
}

/*
Railscasts-like style (c) Visoft, Inc. (Damien White)
*/
.hljs {
  display: block;
  overflow-x: auto;
  padding: 0.5em;
  background: #232323;
  color: #e6e1dc;
}

.hljs-comment,
.hljs-quote {
  color: #bc9458;
  font-style: italic;
}

.hljs-keyword,
.hljs-selector-tag {
  color: #c26230;
}

.hljs-string,
.hljs-number,
.hljs-regexp,
.hljs-variable,
.hljs-template-variable {
  color: #a5c261;
}

.hljs-subst {
  color: #519f50;
}

.hljs-tag,
.hljs-name {
  color: #e8bf6a;
}

.hljs-type {
  color: #da4939;
}

.hljs-symbol,
.hljs-bullet,
.hljs-built_in,
.hljs-builtin-name,
.hljs-attr,
.hljs-link {
  color: #6d9cbe;
}

.hljs-params {
  color: #d0d0ff;
}

.hljs-attribute {
  color: #cda869;
}

.hljs-meta {
  color: #9b859d;
}

.hljs-title,
.hljs-section {
  color: #ffc66d;
}

.hljs-addition {
  background-color: #144212;
  color: #e6e1dc;
  display: inline-block;
  width: 100%;
}

.hljs-deletion {
  background-color: #600;
  color: #e6e1dc;
  display: inline-block;
  width: 100%;
}

.hljs-selector-class {
  color: #9b703f;
}

.hljs-selector-id {
  color: #8b98ab;
}

.hljs-emphasis {
  font-style: italic;
}

.hljs-strong {
  font-weight: bold;
}

.hljs-link {
  text-decoration: underline;
}