@charset "UTF-8";
/* =======================================

	common.css

======================================= */
/*-----------------------------------------
	CommonElements
-----------------------------------------*/
body {
  position: relative;
  text-align: center;
  color: #404040;
  font-size: 16px;
  line-height: 1;
  font-family: "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", sans-serif;
  font-feature-settings: "palt";
}

#container {
  width: 100%;
  min-width: 980px;
}

a:link {
  text-decoration: none;
  color: #004ea2;
}

a:visited {
  text-decoration: none;
  color: #004ea2;
}

a:active {
  text-decoration: none;
  color: #004ea2;
}

a:hover {
  text-decoration: none;
  color: #004ea2;
}

p {
  text-align: justify;
  text-justify: inter-ideograph;
  line-height: 2;
  font-size: 1em;
}

p.hiraoka {
  color: #00a0e9;
  font-weight: bold;
}

p.yahata {
  color: #009fa8;
  font-weight: bold;
}

p.nihonasia {
  color: #a676af;
  font-weight: bold;
}

#fixed_top {
  color: #fff;
  font-size: 13px;
  letter-spacing: 1px;
  line-height: 1.2em;
  width: 70px;
  height: 70px;
  position: fixed;
  right: 60px;
  bottom: 80px;
  background-color: #003489;
  opacity: 0;
  transition: all 0.3s ease-out;
  cursor: default;
  z-index: 999;
}

#fixed_top::before {
  content: '';
  display: block;
  width: 100%;
  height: 15px;
  margin: 12px 0 0;
  background: url("/100th/img/icon_pagetop.png") top center no-repeat;
}

#fixed_top.visible {
  opacity: 1;
  cursor: pointer;
}

#fixed_top.visible:hover {
  opacity: 0.8;
  box-shadow: 0 0 5px #004ea2;
}

#fixed_top.invisible {
  opacity: 0;
  cursor: default;
}

.btn_wide {
  display: inline-block;
  vertical-align: bottom;
  position: relative;
  z-index: 30;
  transition: 0.2s all ease;
  top: 0;
  left: 0;
}

.btn_wide::after {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 6px;
  left: 6px;
  z-index: 35;
  transition: 0.2s all ease;
}

.btn_wide:hover {
  top: 4px;
  left: 4px;
}

.btn_wide:hover::after {
  top: 1px;
  left: 1px;
}

/*-----------------------------------------
	#site_header
-----------------------------------------*/
#site_header {
  width: 100%;
  height: 146px;
  background: #fff;
}

#site_header h1 {
  top: 44px;
  left: 40px;
  position: absolute;
}

#site_header nav {
  position: absolute;
  top: 54px;
  right: 282px;
}

#site_header div.youtube {
  position: absolute;
  top: 10px;
  right: 40px;
}

#site_header nav a {
  padding: 0 25px;
  height: 40px;
  line-height: 40px;
  font-size: 0.9em;
  display: inline-block;
  overflow: hidden;
  border: #004ea2 1px solid;
  transition: background-color 0.3s ease;
}

#site_header nav a::before {
  margin: -0.2em 0.5em 0 0;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  content: '';
  display: inline-block;
  width: 0.5em;
  height: 0.5em;
  border-top: 1px solid #004ea2;
  border-left: 1px solid #004ea2;
  vertical-align: middle;
}

#site_header nav a:hover {
  color: #fff;
  background-color: #004ea2;
}

#site_header nav a:hover::before {
  border-top: 1px solid #fff;
  border-left: 1px solid #fff;
}

#site_header div.youtube a {
  font-size: 0.9em;
}
#site_header div.youtube a:hover {
  opacity: 0.6;
}

#site_header div.youtube p  {
  font-size: 0.9em;
  text-align: center;
  text-decoration: underline;
}

/*-----------------------------------------
	main
-----------------------------------------*/
main {
  width: 100%;
  min-width: 980px;
  position: relative;
  background: url("/100th/img/bg_str.png") center center;
  z-index: 10;
}

.chronology {
  padding-top: 269px;
  width: 100%;
  position: relative;
  background: url("/100th/img/title_bg.png") top center no-repeat;
  background-size: 100% auto;
}

.chronology h2 {
  top: 0;
  left: 0;
  width: 100%;
  text-align: center;
  position: absolute;
}

.main_wrap {
  width: 100%;
  background: url("/100th/img/bg_btm.png") bottom center no-repeat;
  background-size: 100% auto;
}

/* mainWrap
----------------------------------*/
.chronology_list {
  margin: 0 auto;
  width: 980px;
  background: linear-gradient(0deg, #00164b, #00a0e9);
  box-shadow: 0 0 5px #ccc;
}

.chronology_list_inner {
  padding-left: 160px;
  width: 940px;
  background: #fff;
  position: relative;
}

/* sideNav
----------------------------------*/
.select_year {
  top: 0;
  left: 0;
  width: 160px;
  height: 100%;
  background: #f7f8fa;
  position: absolute;
  box-shadow: 0 0 5px #ccc;
  z-index: 2;
}

.select_year ul {
  top: 0;
  left: 0;
  width: 160px;
  text-align: left;
  position: absolute;
}

.select_year ul li {
  width: 100%;
  border-bottom: #d3dbe3 solid 1px;
}

.select_year ul li a {
  padding: 20px;
  width: 100%;
  display: block;
  position: relative;
  transition: all 0.2s ease;
}

.select_year ul li a span {
  padding-right: 2px;
  font-size: 1.4em;
  font-weight: bold;
  font-family: "Roboto", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", sans-serif;
  display: inline-block;
}

.select_year ul li a:hover {
  color: #fff;
  background: #004ea2;
}

.select_year ul li a.active {
  color: #fff;
  background: #004ea2;
}

/* mainYearWrap
----------------------------------*/
.year_wrap {
  width: 100%;
  text-align: left;
  position: relative;
}

.year_wrap:not(:first-of-type):before {
  content: '';
  top: 0;
  right: -40px;
  width: 40px;
  height: 32px;
  text-align: left;
  background: url("/100th/img/year_arrow.png") center center no-repeat;
  position: absolute;
}

.year_wrap h3 {
  top: 40px;
  right: -40px;
  color: #fff;
  height: 40px;
  line-height: 45px;
  font-size: 1em;
  font-weight: bold;
  display: block;
  position: absolute;
  transform: rotate(90deg);
}

.year_wrap:first-of-type h3 {
  top: 20px;
}

.year_wrap article {
  width: 100%;
  text-align: left;
  position: relative;
  border-bottom: #e6e6e6 1px solid;
  z-index: 1;
}

.year_wrap article h4 {
  top: 30px;
  left: 30px;
  color: #004ea2;
  font-size: 1.2em;
  position: absolute;
}

.year_wrap article h4:before {
  content: '';
  top: 15px;
  right: -50px;
  width: 45px;
  height: 1px;
  font-size: 0;
  line-height: 0;
  background: #004ea2;
  display: block;
  position: absolute;
}

.year_wrap article h4:after {
  content: '';
  top: 13px;
  right: -50px;
  width: 5px;
  height: 5px;
  border-radius: 10px;
  background: #004ea2;
  font-size: 0;
  line-height: 0;
  display: block;
  position: absolute;
}

.year_wrap article h4 span {
  padding-right: 2px;
  color: #004ea2;
  font-size: 1.6em;
  font-weight: bold;
  font-family: "Roboto", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", sans-serif;
}

.year_wrap article h4 small {
  padding-top: 5px;
  color: #8f9397;
  font-size: 0.8em;
  display: block;
}

.year_wrap article figure {
  width: 180px;
  text-align: center;
  margin: 15px 20px 0 0;
  float: left;
}

.year_wrap article figure figcaption {
  color: #404040;
  padding-top: 8px;
  font-size: 0.8em;
  text-align: center;
  line-height: 1.5;
}

.year_wrap article figure.wide {
  width: 100%;
  text-align: left;
}

.year_wrap article figure.wide figcaption {
  width: 81%;
}

.year_wrap article figure.wide img {
  margin-right: 15px;
  vertical-align: top;
}

.year_wrap article figure.img_long {
  width: 135px;
}

.year_wrap article figure.img_r {
  width: auto;
  float: right;
  margin: 0 0 0 35px;
}

.year_wrap article figure.badge {
  margin: 0 45px 0 35px;
}

.year_wrap article figure.img_r_long {
  width: auto;
  float: right;
  margin: -100px 0 0 35px;
}

#y1970:before {
  top: -15px;
}

#y1970 h3 {
  top: 25px;
}

/* mainMonthWrap
----------------------------------*/
.month_wrap {
  margin-left: 150px;
  padding: 35px 80px 0 40px;
  width: 670px;
  text-align: left;
  position: relative;
  border-left: #9bb9db 1px dashed;
}

.month_wrap::after {
  content: ' ';
  display: block;
  clear: both;
}

.month_wrap:last-of-type {
  padding: 35px 80px 30px 40px;
}

.month_wrap h5 {
  padding-bottom: 10px;
  color: #004ea2;
  font-size: 1.2em;
}

.month_wrap h5 span {
  padding-right: 2px;
  color: #004ea2;
  font-size: 1.2em;
  font-weight: bold;
  font-family: "Roboto", "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", sans-serif;
}

.month_wrap h5.month_long {
  padding-top: 35px;
}

.month_wrap p {
  font-size: 1em;
  line-height: 2;
  width: 92%;
}

.month_wrap p .label {
  margin-right: 5px;
  padding: 3px 10px;
  color: #004ea2;
  font-size: 1em;
  line-height: 1;
  display: inline-block;
  border: #004ea2 1px solid;
}

.month_wrap p.ta_normal {
  text-align: left;
}

.month_wrap > a {
  padding: 0 20px;
  margin-top: 20px;
  height: 40px;
  line-height: 40px;
  font-size: 0.9em;
  display: inline-block;
  overflow: hidden;
  border: #004ea2 1px solid;
  transition: background-color 0.3s ease;
}

.month_wrap > a::before {
  margin: -0.2em 0.7em 0 0;
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
  content: '';
  display: inline-block;
  width: 0.5em;
  height: 0.5em;
  border-top: 1px solid #004ea2;
  border-right: 1px solid #004ea2;
  vertical-align: middle;
}

.month_wrap > a:hover {
  color: #fff;
  background-color: #004ea2;
}

.month_wrap > a:hover::before {
  border-top: 1px solid #fff;
  border-right: 1px solid #fff;
}

.month_wrap .concept_new {
  width: 100%;
  padding: 30px 33px;
  background-color: #eef5fd;
}

.month_wrap .concept_new h5 {
  font-size: 1.1em;
  font-weight: 600;
}

.month_wrap .concept_new h5::after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background-color: #004ea2;
  margin: 15px auto;
}

.month_wrap .concept_new dl {
  width: 100%;
}

.month_wrap .concept_new dl dt {
  width: 100%;
  margin-bottom: 15px;
}

.month_wrap .concept_new dl dt span {
  color: #004ea2;
  font-weight: 600;
  background-color: #fff;
  padding: 8px 15px;
}

.month_wrap .concept_new dl dt:first-of-type {
  margin-top: 10px;
}

.month_wrap .concept_new dl dt:last-of-type {
  margin-top: 45px;
}

.month_wrap .concept_new dl dd::after {
  content: ' ';
  display: block;
  clear: both;
}

/* history
----------------------------------*/
.history {
  padding: 55px 0;
  width: 100%;
  text-align: center;
}

.history h3 {
  font-size: 1.5em;
  font-weight: 600;
  color: #004ea2;
}

.history h3::after {
  content: '';
  display: block;
  width: 80px;
  height: 1px;
  background-color: #004ea2;
  margin: 30px auto 40px;
}

.history p {
  color: #004ea2;
  text-align: center;
}

.history figure {
  margin: 32px auto;
}

.history a.btn_wide {
  padding: 15px 55px 15px 35px;
  border: #3d6caf 1px solid;
}

.history a.btn_wide span {
  position: relative;
  display: inline-block;
}

.history a.btn_wide span::after {
  content: '';
  display: inline-block;
  width: 20px;
  height: 24px;
  vertical-align: middle;
  background: url("/100th/img/icon_pdf.png") right center no-repeat;
  position: absolute;
  right: -25px;
  top: 50%;
  transform: translateY(-50%);
}

.history a.btn_wide::after {
  border-right: #3d6caf 1px solid;
  border-bottom: #3d6caf 1px solid;
}

.history .history_thumbnail {
  width: 100%;
  margin: 32px auto;
}

.history .history_thumbnail a {
  display: inline-block;
  transition: opacity 0.3s ease;
}

.history .history_thumbnail a:hover {
  opacity: 0.6;
}

/*-----------------------------------------
	#site_footer
-----------------------------------------*/
#site_footer {
  padding-top: 40px;
  width: 100%;
  background: url("/100th/img/bg_ft.png") bottom center no-repeat;
  background-size: cover;
}

#site_footer > a {
  padding: 15px 55px;
  color: #fff;
  border: #fff 1px solid;
}

#site_footer > a span {
  position: relative;
  display: inline-block;
}

#site_footer > a span::before {
  margin: -0.2em 0.5em 0 0;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  content: '';
  display: inline-block;
  width: 0.5em;
  height: 0.5em;
  border-top: 1px solid #fff;
  border-left: 1px solid #fff;
  vertical-align: middle;
}

#site_footer > a::after {
  border-right: #fff 1px solid;
  border-bottom: #fff 1px solid;
}

#site_footer small {
  margin-top: 40px;
  padding: 30px;
  width: 100%;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.8em;
  line-height: 2;
  text-align: left;
  display: block;
  background-color: rgba(0, 0, 0, 0.6);
}