@charset "UTF-8";
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: inherit;
  font-size: 100%;
  vertical-align: baseline; }

html {
  line-height: 1; }

ol, ul {
  list-style: none; }

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

caption, th, td {
  text-align: left;
  font-weight: normal;
  vertical-align: middle; }

q, blockquote {
  quotes: none; }
  q:before, q:after, blockquote:before, blockquote:after {
    content: "";
    content: none; }

a img {
  border: none; }

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

html {
  overflow-x: hidden; }

body {
  background: url(../img/bg.png);
  background-size: 256px 256px; }

html, body, h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
dt, dd, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure {
  font-family: 'ヒラギノ角ゴ ProN W3', 'HiraKakuProN-W3', 'メイリオ', Meiryo, 'ＭＳ Ｐゴシック', sans-serif;
  color: #000;
  font-size: 16px;
  font-weight: normal;
  line-height: 24px;
  letter-spacing: 0; }

li {
  line-height: 1.8em; }

a {
  text-decoration: none; }

header {
  position: relative;
  background: #0c419a; }
  header h1 {
    font-size: 18px;
    line-height: 18px;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    letter-spacing: 0.2em; }
  header h1:before {
    content: "イルミネーションの豆知識";
    display: block;
    font-size: 13px;
    letter-spacing: 0em; }
  header #header-back {
    width: 60px;
    height: 30px;
    text-align: center;
    box-sizing: border-box;
    position: absolute;
    top: 50%;
    margin-top: -13px;
    margin-left: 5px; }
  header #header-back a {
    display: block;
    color: #fff;
    overflow: hidden;
    padding: 3px 0px 3px 12px;
    background: url(../img/header_back_flatblue.png) 0 0 no-repeat;
    background-size: 60px 30px; }

section {
  margin: 0 10px; }
  section #lead {
    color: #fff;
    font-size: 16px;
    text-align: center;
    padding: 10px;
    line-height: 23px;
    background: rgba(113, 101, 45, 0.8);
    margin: 20px 0;
    border: 2px solid #71652d;
    border-radius: 10px; }
  section article {
    margin: 0 auto 20px;
    background: #fff;
    box-shadow: rgba(0, 0, 0, 0.5) 0 1px 3px;
    border-radius: 5px; }
    section article h3 {
      padding: 5px 10px 5px 30px;
      color: #fff;
      font-size: 15px;
      font-weight: normal;
      background: #0168a4;
      position: relative;
      border-top-right-radius: 5px;
      border-top-left-radius: 5px; }
    section article h3:before {
      content: "";
      width: 20px;
      height: 20px;
      background-image: url("../img/icon-intitle2.png");
      background-size: 20px 20px;
      background-repeat: no-repeat;
      text-indent: 110%;
      white-space: nowrap;
      overflow: hidden;
      display: block;
      position: absolute;
      left: 5px; }
    section article h4 {
      font-size: 16px;
      font-weight: bold;
      padding: 10px 0;
      margin-bottom: 10px;
      border-top: 1px solid #000;
      border-bottom: 1px solid #000; }
    section article h4:not(:first-child) {
      margin-top: 30px; }
    section article div {
      padding: 10px; }
      section article div li:before {
        content: "★";
        color: #ff9900;
        margin-right: 5px; }
      section article div dt {
        font-weight: bold; }
      section article div dt:before {
        content: "★";
        color: #ff9900;
        margin-right: 5px; }
      section article div dd {
        padding-bottom: 20px;
        border-bottom: 1px dashed #ccc;
        margin-bottom: 20px; }
      section article div p {
        line-height: 1.8em;
        letter-spacing: 0.05em;
        margin-bottom: 25px; }
      section article div .comment {
        font-weight: bold;
        padding: 10px;
        text-align: center;
        border: 1px solid #ff9900;
        border-radius: 6px; }
      section article div figure {
        text-align: center;
        margin: 20px 0; }
        section article div figure .caption {
          font-size: 12px; }
      section article div > :last-child {
        margin: 0; }

.back {
  width: 100%;
  margin-top: 50px; }
  .back a {
    display: block;
    padding: 8px 0 8px 20px;
    background: #fff;
    position: relative; }
  .back a:before {
    content: "";
    width: 8px;
    height: 13px;
    background-image: url("../img/arrow_left_gray.png");
    background-size: 8px 13px;
    background-repeat: no-repeat;
    text-indent: 110%;
    white-space: nowrap;
    overflow: hidden;
    display: block;
    position: absolute;
    top: 50%;
    margin-top: -6.5px;
    left: 7px; }