@charset "UTF-8";
body {
  margin: 0;
  padding: 0;
  background-color: #74b3c4;
  font-family: 'Noto Sans JP', sans-serif;
  letter-spacing: 0.1em;
  position: relative;
}

a {
  color: #2b2e30;
  text-decoration: none;
}

h1, h2, h3, h4, h6, p {
  color: #2b2e30;
}

h1 {
  font-size: 24px;
}

h2 {
  width: auto;
  margin-top: 50px;
  margin-bottom: 20px;
  padding: 10px;
  font-size: 20px;
  background-color: rgba(116, 179, 196, 0.3);
}

h3 {
  width: auto;
  margin-top: 50px;
  margin-bottom: 20px;
  padding-bottom: 5px;
  font-size: 18px;
  border-bottom: 1px solid #74b3c4;
}

h4 {
  font-size: 18px;
  text-align: center;
  font-weight: 400;
}

h5 {
  margin-top: 30px;
  margin-bottom: 10px;
  font-size: 16px;
  font-weight: 400;
  color: #429eb7;
}

h6 {
  margin: 0;
  padding: 0;
  font-size: 16px;
  font-weight: 400;
}

p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8em;
  white-space: pre-line;
}

ul, ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

header {
  width: auto;
  height: 70px;
  padding: 5px 100px 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  background-color: #fff;
  -webkit-box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
          box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
  z-index: 100;
}

@media screen and (max-width: 1025px) {
  header {
    padding: 5px 0 0;
  }
}

header .header__container {
  width: 90%;
  max-width: 1040px;
  height: auto;
  margin: 0 auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  text-align: center;
  font-weight: 700;
  /*============
            nav
            =============*/
  /*============
            .toggle_btn
            =============*/
  /*============
            #mask
            =============*/
}

header .header__container img {
  width: 188px;
  height: auto;
}

header .header__container li {
  line-height: 27px;
}

@media screen and (max-width: 1025px) {
  header .header__container .pc-menu {
    display: none;
  }
}

header .header__container #nav_area {
  display: none;
}

@media screen and (max-width: 1025px) {
  header .header__container #nav_area {
    display: block;
  }
}

header .header__container nav {
  display: block;
  position: fixed;
  top: 0;
  right: -300px;
  bottom: 0;
  width: 300px;
  background: #ffffff;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  -webkit-transition: all .5s;
  transition: all .5s;
  z-index: 3;
  opacity: 0;
}

header .header__container nav .inner {
  padding: 25px;
  padding-top: 75px;
  text-align: left;
}

header .header__container nav .inner .nav-menu-list {
  line-height: 40px;
  border-bottom: 1px solid #74b3c4;
}

header .header__container nav .inner ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

header .header__container nav .inner ul li {
  position: relative;
  margin: 0;
  color: #2b2e30;
  border-bottom: 1px solid #E8E8E8;
}

header .header__container nav .inner ul li:after {
  content: '';
  display: inline-block;
  position: absolute;
  top: calc(50% - 4px);
  right: 0;
  width: 6px;
  height: 6px;
  border-top: 2px solid #74b3c4;
  border-right: 2px solid #74b3c4;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

header .header__container nav .inner ul li a {
  display: block;
  color: #2b2e30;
  font-size: 14px;
  padding: 1em;
  text-decoration: none;
  -webkit-transition-duration: 0.2s;
          transition-duration: 0.2s;
}

header .header__container nav .inner ul li a:hover {
  opacity: 0.3;
}

header .header__container .open nav {
  right: 0;
  opacity: 1;
}

@media screen and (max-width: 1025px) {
  header .header__container nav {
    right: -292px;
    width: 292px;
    height: 493px;
  }
}

header .header__container .toggle_btn {
  display: block;
  position: fixed;
  top: 22px;
  right: 30px;
  width: 30px;
  height: 30px;
  -webkit-transition: all .5s;
  transition: all .5s;
  cursor: pointer;
  z-index: 3;
}

header .header__container .toggle_btn span {
  display: block;
  position: absolute;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: #2b2e30;
  border-radius: 4px;
  -webkit-transition: all .5s;
  transition: all .5s;
}

header .header__container .toggle_btn span:nth-child(1) {
  top: 4px;
}

header .header__container .toggle_btn span:nth-child(2) {
  top: 14px;
}

header .header__container .toggle_btn span:nth-child(3) {
  bottom: 4px;
}

header .header__container .open .toggle_btn span {
  background-color: #2b2e30;
}

header .header__container .open .toggle_btn span:nth-child(1) {
  -webkit-transform: translateY(10px) rotate(-315deg);
  transform: translateY(10px) rotate(-315deg);
}

header .header__container .open .toggle_btn span:nth-child(2) {
  opacity: 0;
}

header .header__container .open .toggle_btn span:nth-child(3) {
  -webkit-transform: translateY(-10px) rotate(315deg);
  transform: translateY(-10px) rotate(315deg);
}

header .header__container #mask {
  display: none;
  -webkit-transition: all .5s;
  transition: all .5s;
}

header .header__container .open #mask {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #2b4147;
  opacity: .8;
  z-index: 2;
  cursor: pointer;
}

header .header__current {
  border-bottom: 4px solid #74b3c4;
}

footer {
  width: 100%;
  height: auto;
  margin: -70px auto;
  padding: 30px 0 20px;
  position: absolute;
  bottom: 0;
  text-align: center;
}

footer p, footer a {
  font-size: 10px;
  color: #fff;
}

.article {
  width: 90%;
  max-width: 1100px;
  margin: 30px auto 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

@media screen and (max-width: 1025px) {
  .article {
    display: block;
    overflow: hidden;
  }
}

.article span {
  font-weight: 700;
}

.article .section, .article #summary {
  margin-top: -75px;
  padding-top: 75px;
}

.article .Annotation {
  margin-bottom: 20px;
  font-size: 10px;
}

.article .line {
  font-weight: 400;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(60%, transparent), color-stop(60%, #e5ffc3));
  background: linear-gradient(transparent 60%, #e5ffc3 60%);
}

.article .right {
  text-align: right;
}

.article img {
  width: auto;
  height: auto;
  margin: 20px auto;
  display: block;
}

.article .image-container--80 img {
  width: 80%;
}

@media screen and (max-width: 750px) {
  .article .image-container--80 img {
    width: 100%;
  }
}

.article .flex-image-block {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

@media screen and (max-width: 1025px) {
  .article .flex-image-block {
    width: 100%;
    display: block;
  }
}

.article .flex-image-block img {
  width: auto;
  max-width: 50%;
  height: auto;
}

@media screen and (max-width: 1025px) {
  .article .flex-image-block img {
    width: auto;
    max-width: 100%;
  }
}

.article__contents {
  -ms-flex-negative: 1;
      flex-shrink: 1;
  max-width: 660px;
  height: auto;
  margin-right: 30px;
  padding: 20px 55px 80px;
  border-radius: 10px;
  background-color: #fff;
  -webkit-box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
          box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
}

@media screen and (max-width: 1025px) {
  .article__contents {
    width: auto;
    margin: 0 auto;
    padding: 15px 15px 50px;
  }
}

.article__contents img {
  width: auto;
  max-width: 100%;
  height: auto;
  margin: 20px auto;
  display: block;
}

@media screen and (max-width: 1025px) {
  .article__contents img {
    width: 100%;
  }
}

@media screen and (max-width: 750px) {
  .article__contents .pc-image {
    display: none;
  }
}

.article__contents .sp-image {
  display: none;
}

@media screen and (max-width: 750px) {
  .article__contents .sp-image {
    display: block;
  }
}

.article__contents .ng-icon:before {
  content: 'NG';
  margin-right: 10px;
  padding: 2px 5px;
  vertical-align: middle;
  color: #fff;
  font-size: 12px;
  background-color: #000;
  border-radius: 3px;
}

.article__contents h4.main-color {
  color: #74b3c4;
}

.article__contents .breadcrumb {
  height: auto;
  margin: 0;
  padding-bottom: 10px;
  font-size: 14px;
  border-bottom: 1px solid #74b3c4;
}

.article__contents .breadcrumb li {
  padding: 0 7px;
  display: inline;
  font-weight: 700;
  position: relative;
}

.article__contents .breadcrumb li:after {
  content: '';
  display: inline-block;
  position: absolute;
  top: calc(50% - 4px);
  right: 0;
  width: 6px;
  height: 6px;
  border-top: 2px solid #74b3c4;
  border-right: 2px solid #74b3c4;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

.article__contents .breadcrumb li:first-child {
  padding-left: 0;
}

.article__contents .breadcrumb li:last-child {
  font-weight: 400;
  opacity: 0.3;
  pointer-events: none;
}

.article__contents .breadcrumb li:last-child:after {
  content: none;
}

.article__contents .breadcrumb li a {
  text-decoration: none;
}

.article__contents .breadcrumb li a:hover {
  text-decoration: underline;
}

.article__contentsーlist {
  margin: 0 auto;
  padding: 10px 30px;
  background-color: #edf3f5;
}

.article__contentsーlist h6 {
  text-align: center;
  font-size: 16px;
  font-weight: 400;
  line-height: 40px;
  border-bottom: 1px solid #BCC3C6;
}

.article__contentsーlist a:hover {
  display: inline-block;
  opacity: 0.3;
}

.article__contentsーlist li {
  padding-left: 15px;
  line-height: 30px;
  font-weight: 700;
  position: relative;
}

.article__contentsーlist li:before {
  content: '';
  display: inline-block;
  position: absolute;
  top: calc(50% - 5px);
  left: 0;
  width: 6px;
  height: 6px;
  border-bottom: 2px solid #74b3c4;
  border-right: 2px solid #74b3c4;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

.article__contentsーlist .sub {
  margin-left: 40px;
  font-weight: 400;
}

.article__contents blockquote {
  margin: 20px auto;
  padding: 15px 0 15px 15px;
  font-size: 14px;
  font-weight: 100;
  line-height: 1.5em;
  border-left: 10px solid #C1E1EA;
}

.article__contents .base-box {
  width: auto;
  margin: 10px auto 20px;
  padding: 18px 25px;
  font-size: 14px;
  border-radius: 20px;
  background-color: #edf3f5;
}

.article__contents .base-box p {
  font-size: 14px;
  margin-bottom: 12px;
}

.article__contents .base-box .number-list > li {
  list-style: count;
  margin-left: 25px;
}

.article__contents .base-box .sub-list {
  display: inline-block;
  margin-left: 2em;
}

.article__head p {
  margin-top: 10px;
  font-size: 12px;
  text-align: right;
}

.article__list {
  width: 260px;
  height: 314px;
  padding: 24px 20px;
  -ms-flex-negative: 0;
      flex-shrink: 0;
  position: -webkit-sticky;
  position: sticky;
  top: 105px;
  border-radius: 10px;
  background-color: #fff;
  -webkit-box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
          box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
}

@media screen and (max-width: 1025px) {
  .article__list {
    display: none;
  }
}

.article__list__head {
  height: 34px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: start;
      -ms-flex-align: start;
          align-items: flex-start;
  border-bottom: 1px solid #74b3c4;
}

.article__list__head p {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.article__list__head a {
  height: 20px;
  padding: 3px 5px 3px 10px;
  line-height: 20px;
  font-size: 10px;
  border-radius: 5px;
  background-color: #edf3f5;
}

.article__list__head a:after {
  content: url(../images/next.svg);
  margin-left: 5px;
}

.article__list li {
  width: 240px;
  padding: 10px;
  font-size: 14px;
  border-bottom: 1px solid #E8E8E8;
  position: relative;
}

.article__list li:after {
  content: '';
  display: inline-block;
  position: absolute;
  top: calc(50% - 4px);
  right: 0;
  width: 6px;
  height: 6px;
  border-top: 2px solid #74b3c4;
  border-right: 2px solid #74b3c4;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

.article__list li:hover {
  opacity: 0.3;
}

.article__list--current {
  opacity: 0.3;
}

.article .pagetop_btn a {
  width: 50px;
  height: 50px;
  position: fixed;
  right: 30px;
  bottom: 20px;
  border-radius: 25px;
  background-color: #2b2e30;
  z-index: 10;
}

.top {
  width: 90%;
  max-width: 770px;
  height: auto;
  margin: 30px auto 0;
  padding: 30px 0 90px;
  background-color: #fff;
  border-radius: 10px;
  -webkit-box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
          box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.2);
}

@media screen and (max-width: 1025px) {
  .top {
    padding: 30px 10px 90px;
  }
}

.top__h1 {
  width: 100%;
  text-align: center;
  position: relative;
  display: inline-block;
  margin: 0 auto 1em;
}

.top__h1:before {
  content: '';
  position: absolute;
  display: inline-block;
  bottom: -10px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  width: 30px;
  height: 4px;
  border-radius: 2px;
  background-color: #74b3c4;
}

.top__read {
  width: 80%;
  max-width: 556px;
  margin: 20px auto 30px;
  padding: 20px 25px;
  font-size: 14px;
  background-color: #edf3f5;
  border-radius: 10px;
}

.top__menu {
  width: 90%;
  max-width: 430px;
  margin: 0 auto;
}

.top__menu li {
  font-size: 16px;
  padding: 20px 0;
  border-bottom: 1px solid #E8E8E8;
  position: relative;
}

.top__menu li:after {
  content: '';
  display: inline-block;
  position: absolute;
  top: calc(50% - 4px);
  right: 0;
  width: 6px;
  height: 6px;
  border-top: 2px solid #74b3c4;
  border-right: 2px solid #74b3c4;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
}

.top__menu li:hover {
  opacity: 0.3;
}

/************************************
  レスポンシブデザイン用のメディアクエリ
　************************************/
/*768px以下*/
@media screen and (max-width: 768px) {
  /*必要ならばここにコードを書く*/
}

/*480px以下*/
@media screen and (max-width: 480px) {
  /*必要ならばここにコードを書く*/
}
/*# sourceMappingURL=style.css.map */