/* ----------------------------------------------------------------------------
/* reset
---------------------------------------------------------------------------- */
/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */

article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
  display: block;
}
body {
  line-height: 1;
}
ol, ul {
  list-style: none;
}
blockquote, q {
  quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
  content: '';
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
img {
  max-width: 100%;
}
a {
  color: #333333;
  text-decoration: none;
}
sup {
  margin-left: 2px;
  font-size: 60%;
  vertical-align: top;
}



/* ----------------------------------------------------------------------------
/* body
---------------------------------------------------------------------------- */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Noto Sans Japanese", "ヒラギノ角ゴ ProN W3", Hiragino Kaku Gothic ProN, Arial, Meiryo, sans-serif;
  background-color: #ffffff;
  font-size: 16px;
  line-height: 1.4em;
  color: #333333;
}

#container {
  position: relative;
  width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 100px;
  padding-right: 200px;
}
#container:before {
  position: absolute;
  top: 20px;
  left: 0;
  content: '';
  display: block;
  width: 60px;
  height: 100%;
  background-size: contain;
  background-repeat: no-repeat;
}
#container:after {
  position: absolute;
  top: 100px;
  right: 0;
  content: '';
  display: block;
  width: 180px;
  height: 100%;
  background-image: url(../img/image_r.png);
  background-size: contain;
  background-repeat: no-repeat;
}

@media screen and (max-width: 1540px) {
  #container {
    width: calc(100% - 340px);
    margin-left: 20px;
    margin-right: 20px;
  }
}
@media screen and (max-width: 768px) {
  #container {
    width: calc(100% - 40px);
    margin-left: 20px;
    margin-right: 20px;
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 40px;
  }
  #container:before,
  #container:after {
    display: none;
  }
}

header {
  display: table;
  width: 100%;
  padding-top: 40px;
  padding-bottom: 40px;
}
header div,
header > ul {
  display: table-cell;
}
header div {
  color: #187fc4;
  font-size: 18px;
  font-weight: bold;
}
header div span {
  color: #333333;
}
header ul {
  font-size: 0;
  text-align: right;
}
header ul li {
  display: inline-block;
  font-size: 12px;
  background-color: #d1e5f3;
}
header ul li.current,
header ul li a {
  padding: 5px 10px;
}
header ul li.current {
  color: #187fc4;
}
header ul li a {
  display: block;
  background-color: #ffffff;
}
header ul li a:hover,
header ul li a:active,
header ul li a:focus {
  color: #187fc4;
  background-color: #d1e5f3;
}
header ul li {
  border: 1px solid #187fc4;
}
header ul li:nth-of-type(1) {
  border-right: none;
}
@media screen and (min-width: 480px) {
  header nav {
    display: none;
  }
}
@media screen and (max-width: 479px) {
  header {
    padding-top: 20px;
  }
  header > ul {
    display: none;
  }
  header nav,
  header div {
    display: block;
  }
  header nav {
    margin-bottom: 20px;
  }
}

section > h1 {
  margin-bottom: 20px;
  font-size: 40px;
  font-weight: bold;
  line-height: 1.2em;
  padding: 10px;
  border-bottom: 3px double #187fc4;
  background: linear-gradient(180deg, #ffffff, #e7f2f9);
}
section > h1 span {
  margin-left: -0.5em;
}
section > h2 {
  margin-top: 40px;
  margin-bottom: 20px;
  font-size: 24px;
  font-weight: bold;
  line-height: 1.2em;
}

section .graph {
  margin-top: 30px;
  font-size: 0;
}
section .graph figure {
  display: inline-block;
  font-size: 18px;
  vertical-align: top;
}
section .graph figure:nth-of-type(1) {
  width: 62%;
}
section .graph figure:nth-of-type(2) {
  width: calc(38% - 40px);
  margin-left: 40px;
}
section .graph figure figcaption {
  margin-bottom: 20px;
  font-weight: bold;
}
section .graph .source {
  margin-top: 10px;
  font-size: 14px;
}
@media screen and (max-width: 479px) {
  section .graph figure {
    display: block;
  }
  section .graph figure:nth-of-type(1),
  section .graph figure:nth-of-type(2) {
    width: 100%;
  }
  section .graph figure:nth-of-type(2) {
    margin-top: 20px;
    margin-left: 0;
  }
}

section .illust {
  margin-top: 30px;
  font-size: 0;
}
section .illust h3 {
  margin-bottom: 20px;
  font-size: 18px;
  font-weight: bold;
}
section .illust figure {
  display: inline-block;
  width: calc((100% - 80px) / 5);
  font-size: 16px;
  vertical-align: top;
}
section .illust figure:nth-of-type(n+2) {
  margin-left: 20px;
}
section .illust figure figcaption {
  font-weight: bold;
  text-align: center;
}
section .illust figure p {
  font-size: 14px;
  line-height: 1.2em;
}
@media screen and (max-width: 479px) {
  section .illust figure {
    width: calc((100% - 40px) / 3);
  }
  section .illust figure:nth-of-type(4) {
    margin-left: 0;
  }
  section .illust figure:nth-of-type(n+4) {
    margin-top: 20px;
  }
}

#container > article {
  margin-top: 40px;
  padding: 40px;
  border: 1px solid #eeeeee;
  box-shadow: 5px 5px 10px #eeeeee;
  background-color:#ffffff;
  background-image: linear-gradient(rgba(222,241,251,1) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(222,241,251,1) 1px, transparent 1px);
  background-size: 20px 20px, 20px 20px;
  background-position: -1px -1px, -1px -1px;
}
#container > article > h1 {
  margin-bottom: 5px;
  font-size: 28px;
  font-weight: bold;
  line-height: 1.2em;
}
#container > article > h1,
#container > article > p {
  font-family: "Sawarabi Mincho";
}
#container > article > p {
  line-height: 1.6em;
}
#container > article .lead {
  margin-bottom: 20px;
}
#container > article > h2 {
  margin-bottom: 10px;
  padding-top: 5px;
  padding-bottom: 5px;
  font-size: 18px;
  border-top: 2px solid #000000;
  border-bottom: 2px solid #000000;
  font-weight: bold;
}
#container > article > figure {
  margin-top: 20px;
}
#container > article > .ito {
  width: 80%;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 20px;
  padding: 10px;
  border: 1px solid #000000;
  font-size: 0;
  background-color: #ffffff;
}
#container > article > .ito img,
#container > article > .ito figcaption {
  display: inline-block;
  width: 50%;
  font-size: 14px;
  vertical-align: middle;
}
#container > article > .ito figcaption {
  width: calc(50% - 20px);
  margin-left: 20px;
  line-height: 1.2em;
}
#container > article > .ito figcaption div {
  margin-top: 5px;
}
#container > article > .ito figcaption span {
  margin-right: 5px;
  font-size: 18px;
}
#container > article > .column {
  float: right;
  width: 60%;
  margin-top: 0;
  padding-left: 20px;
  padding-bottom: 20px;
}
article .graph {
  margin-bottom: 30px;
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #000000;
  border-radius: 10px;
  text-align: center;
}
article .graph figcaption {
  margin-bottom: 20px;
  font-size: 18px;
  font-weight: bold;
}
#container article article {
  margin-top: 30px;
  font-size: 0;
  background-color: #e5e5e5;
}
#container article article figure,
#container article article .spec {
  display: inline-block;
  padding-top: 20px;
  padding-bottom: 20px;
  padding-right: 40px;
  font-size: 16px;
  vertical-align: top;
}
#container article article h1 span {
  display: block;
  margin-bottom: 10px;
  padding-top: 20px;
  padding-bottom: 5px;
  padding-left: 20px;
  padding-right: 20px;
  border-bottom: 1px solid #000000;
  font-size: 18px;
}
#container article article h1 a {
  padding-left: 20px;
  padding-right: 20px;
  font-size: 30px;
  font-weight: bold;
}
#container article article h1 a:hover,
#container article article h1 a:active,
#container article article h1 a:focus {
  color: #004b9c;
}
#container article article figure {
  width: 20%;
  padding-left: 40px;
}
#container article article .spec {
  width: calc(80% - 120px);
}
#container article article .spec p {
  font-size: 18px;
  color: #004b9c;
}
#container article article .spec table {
  width: calc(100% - 3px);
  margin-top: 10px;
  border-top: 1px solid #cccccc;
  border-left: 1px solid #cccccc;
}
#container article article .spec table th,
#container article article .spec table td {
  padding: 10px;
  border-bottom: 1px solid #cccccc;
  border-right: 1px solid #cccccc;
}
@media screen and (max-width: 768px) {
  #container > article {
    padding: 20px;
  }
  #container > article > .column {
    float: none;
    width: 100%;
    margin-top: 20px;
    margin-bottom: 10px;
    padding: 0;
  }
  #container > article > .ito {
    width: calc(100% - 22px);
  }
}
@media screen and (max-width: 479px) {
  #container > article > .ito img,
  #container > article > .ito figcaption {
    display: block;
    width: 100%;
  }
  #container > article > .ito figcaption {
    margin-top: 5px;
    margin-left: 0;
  }
  article .graph figcaption {
    text-align: left;
  }
  #container article article figure,
  #container article article .spec {
    display: block;
    width: calc(100% - 40px);
    padding-left: 20px;
    padding-right: 20px;
  }
  #container article article figure {
    padding-bottom: 0;
  }
  #container article article .spec table th {
    text-align: left;
  }
}