@charset "utf-8";
/* CSS Document */
body, html {
  height: 100%;
  margin: 0;
}
body {
  margin: 0;
  padding: 0;
  color: #515152;
  background-color: #e0e9f0;
  font-family: "M PLUS 1p", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  font-size: 22px;
}
a:link, a:visited, a:active {
  text-decoration: none;
  color: #205df9;
}
a:hover {
  text-decoration: underline;
  cursor: pointer;
}
a img {
  border: 0;
}
img {
  display: block;
}
h1, h2, p {
  padding: 0;
  border: 0;
  margin: 0;
}
ul, li {
  margin: 0;
  padding: 0;
  list-style: none;
}
/* wrap */
#wrap {
  flex: 1;
  width: 100%;
  max-width: 990px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
/* NAV BAR */
.logo_wrap {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  align-items: flex-start;
  z-index: 1;
}
.logo_icon {
  width: 31px;
  height: 31px;
  margin-right: 9px;
}
.logo_text {
  color: #ffffff;
  font-size: 26px;
  font-weight: 700;
  line-height: 30px;
}
.logo_text a {
  padding: 0;
  text-decoration: none;
}
.logo_text a:link, .logo_text a:visited, .logo_text a:hover, .logo_text a:active {
  color: #ffffff;
}
/* NAV LINKS */
nav {
  background: #6390be;
  text-align: center;
  font-weight: 700;
  font-size: 26px;
}
nav a:link, nav a:visited, nav a:active {
  text-decoration: none;
  color: #fff;
}
nav a {
  padding: 17px 36px;
  margin: 0;
  transition: color 0.4s ease;
}
nav a:hover, nav a:focus {
  color: #163e66;
  text-decoration: none;
}
.nav_fold {
  margin: 0 auto;
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 0;
  z-index: 3;
  max-height: 0;
  overflow: hidden;
  flex-direction: column;
  width: 100%;
  background-color: #82a6cb;
  transition: max-height 0.5s ease;
}
.nav_fold li {
  margin: 0;
  padding: 0;
  border-bottom: 1px solid #b7cfe8;
  width: 100%;
  z-index: 3;
}
.nav_fold li:not(:first-child):before {
  content: "|";
  color: #fff;
  display: none;
}
.nav_fold li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.nav_fold li a {
  display: block;
  width: 100%;
  padding: 10px 20px;
  box-sizing: border-box;
}
.nav_fold.active {
  max-height: 500px;
}
/* MENU SYMBOL */
.menu_icon {
  display: flex;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
  padding: 6px 18px 10px 18px; /* was 4px 18px 0 18px */
  align-items: center;
  gap: 10px;
  justify-content: right;
}
.menu_icon .hamburger {
  margin-right: -6px;
  width: 32px;
  text-align: center;
  display: inline-block;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.menu_icon span:nth-child(2) {
  transform: translateY(1px);
  font-size: 26px;
}
/* MENU ITEM */
li.menu_item {
  display: inline;
}
/*ADS*/
.al_300 {
  font-size: 1px;
  position: absolute;
  top: 0px;
  left: -320px;
  width: 300px;
  height: 600px;
}
.ar_300 {
  font-size: 1px;
  position: absolute;
  top: 0px;
  left: 1010px;
  width: 300px;
  height: 600px;
}
.al_160 {
  display: none;
}
.ar_160 {
  display: none;
}
/* ========================= */
/* GAME IFRAME wrap */
/* ========================= */
.game {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-top: 30px;
}
.game_frame {
  width: 100%;
  max-width: 600px;
  height: 560px;
  border: 0;
  display: block;
  margin: 0 auto;
}
.game_responsive {
  display: none;
}
/*ARTICLE*/
.article_wrap {
  background-color: #fff;
  border-radius: 20px;
  margin-top: 30px;
  padding-bottom: 20px;
  padding-left: 25px;
  padding-right: 25px;
}
.a_head {
  margin-top: 30px;
}
h1.article_title {
  padding-top: 20px;
  padding-bottom: 5px;
  color: #588539;
  font-size: 36px;
  font-weight: 700;
  font-style: normal;
  text-align: center;
  padding-left: 20px;
  padding-right: 20px;
  line-height: 46px;
}
.article_hr {
  padding-top: 21px;
  width: 341px;
  height: 31px;
  margin: 0 auto;
  background-image: url("media/google-minesweeper-hr.png");
  background-repeat: no-repeat;
  background-position: center;
}
h2.article_title_subpage {
  display: block;
  padding-top: 14px;
  font-weight: 700;
  font-size: 26px;
}
.article_text {
  padding-top: 14px;
  display: block;
  text-align: justify;
  line-height: 38px;
}
ul.article_ul {
  display: block;
  margin: 0;
  padding: 0;
}
li.article_li {
  margin-top: 14px;
  position: relative;
  padding-left: 20px;
  text-align: justify;
  line-height: 38px;
  list-style-type: none;
}
li.article_li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  transform: translateY(13px);
  width: 6px;
  height: 6px;
  background-color: #515152;
  border-radius: 50%;
}
.article_image {
  width: 100%;
  margin: 0 auto;
  padding-top: 18px;
  padding-bottom: 4px;
}
/* FOOTER */
#footer_wrap {
  width: 100%;
  margin-top: 50px;
}
#footer_container {
  margin-left: auto;
  margin-right: auto;
  position: relative;
}
nav.footer_background {
  background-color: #789fc6;
  text-align: center;
  padding-top: 60px;
  padding-bottom: 60px;
}
nav.footer_background li {
  font-size: 26px;
  display: inline;
  margin: 0 20px;
}
nav.footer_background a {
  display: inline-block;
  color: #fff;
  text-decoration: none;
  position: relative;
  padding: 0;
  margin: 0;
}
nav.footer_background a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: #fff;
  opacity: 0;
  transition: opacity 0.3s ease;
}
nav.footer_background a:hover::after {
  opacity: 1;
}
@media (max-width: 1750px) {
  .al_300, .ar_300 {
    display: none;
  }
  .al_160 {
    font-size: 1px;
    display: block;
    position: absolute;
    top: 0px;
    left: -180px;
    width: 160px;
    height: 600px;
  }
  .ar_160 {
    font-size: 1px;
    display: block;
    position: absolute;
    top: 0px;
    left: 1010px;
    width: 160px;
    height: 600px;
  }
}
@media (max-width: 1500px) {
  .al_160 {
    display: none;
  }
  #wrap {
    margin-left: 11px;
    margin-right: auto;
  }
}
@media (max-width: 1279px) {
  .ar_160 {
    display: none;
  }
}
@media (max-width: 1023px) {
  #wrap {
    margin-left: auto;
    margin-right: auto;
  }
}
@media (max-width: 1300px) {
  .logo_icon {
    display: none;
  }
}
@media (max-width: 1500px) {
  nav.footer_background li {
    padding-bottom: 16px;
    padding-top: 16px;
    display: block;
  }
}
@media (max-width: 640px) {
  .game, .game_frame {
    display: none;
  }
  .game_responsive {
    display: block;
    max-width: 100%;
    width: 100%;
    padding-top: 1px;
    margin: 0 auto;
    padding: 20px 20px 0 20px;
    box-sizing: border-box;
  }
  .game_responsive img {
    width: 100%;
    height: auto;
    box-sizing: border-box;
    border-radius: 20px; /* Adjust the value for the desired corner roundness */
  }
}
@media (max-width: 480px) {
  .article_hr {
    width: 310px;
    height: 28px;
    background-size: 310px 28px;
  }
  .menu_icon span:nth-child(2) {
    display: none;
  }
}