html, body, div, span, iframe, h1, h2, h3, h4, h5, p, a, img, ul, li, table, tr, th, td, tbody, footer, header, main, nav, section {
  margin: 0;
  padding: 0;
  border: 0;
  font-weight: normal;
  list-style: none;
  text-decoration: none;
}

body {
  font-family: "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  min-width: 700px;
}

body {
  width: 100%;
}

#header_inner, .main_contact, #section02_inner, #company {
  width: 100%;
  margin: 0 auto;
}

#header_inner {
  height: 85px;
  background-color: #aaaaaa;
  padding: 3px;
  position: relative;
}

#header_logo, #header_contact, #header_text {
  position: absolute;
  top: 0;
  bottom: 0;
  margin: 5px;
}

#header_logo {
  left: 19px;
}

#header_contact {
  width: 155px;
  height: 51px;
  right: 0;
}

#header_contact_inner {
  display: block;
  width: 102px;
  height: 24px;
  text-align: center;
  padding: 14px 26px 13px 27px;
  background-color: #ff0600;
  transition: 0.4s;
}

#header_contact_inner:hover {
  transform: scale(1.1, 1.1);
}

#header_contact_inner p {
  color: #fff;
}

#header_text {
  width: 243px;
  height: 29px;
  right: 155px;
}

#header_text p {
  font-size: 0.9rem;
}

#header_title {
  color: #555;
  font-size: min(4vw, 50px);
  display: inline-block;
}

#main_image {
  display: table;
  width: 100%;
  height: 482px;
  background-size: cover;
}

#main_image_inner {
  width: 100%;
  height: 482px;
  position: relative;
  background: url(../images/top/main.png) no-repeat;
  /* background: url(https://d2l930y2yx77uc.cloudfront.net/production/uploads/images/6432841/picture_pc_e9cd48501e8ad5f03a13bfefcf9e1f19.jpg) no-repeat; */
  background-size: contain;
  background-position: center;
}

#main_image_inner h1 {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 500px;
  height: 85px;
  margin: auto;
  color: #ccc;
  font-size: 4.3rem;
  text-align: center;
  display: table-cell;
  vertical-align: middle;
}

.scroll {
  height: 87px;
  width: 100%;
  background-color: #aaa;
  position: relative;
  display: table;
}

.scroll:after {
  content: "";
  display: block;
  width: 0px;
  height: 0px;
  bottom: -14px;
  border-top: 43px solid #aaa;
  border-right: 60px solid transparent;
  border-left: 60px solid transparent;
  left: 0;
  right: 0;
  margin: auto;
  position: absolute;
  z-index: -1;
}

.scroll_item {
  position: relative;
  width: 25%;
  height: 100%;
  display: table-cell;
  vertical-align: middle;
}

.scroll_item:hover {
  background-color: #777;
}

.scroll h2 a {
  display: block;
  width: 100%;
  height: 100%;
  /* 以下を追加 */
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}

.scroll h2 {
  color: #fff;
  font-size: 1.9rem;
  text-align: center;
  vertical-align: middle;
}

.main_contact {
  height: 163px;
  background-color: #aaa;
  margin-top: 100px;
  margin-bottom: 100px;
  overflow: hidden;
}

.main_contact_inner {
  width: 50%;
  height: 163px;
  position: relative;
}

.contact_left {
  float: left;
}

.contact_left_inner {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 307px;
  height: 53px;
  margin: auto;
  overflow: hidden;
}

.contact_left_inner img {
  float: left;
}

.contact_left_inner p {
  float: right;
  font-size: 1.4rem;
  line-height: 20px;
  margin: 9px 0 5px;
}

.contact_left_inner span {
  font-size: 0.9rem;
}

.contact_right {
  float: right;
}

.contact_right_inner {
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 243px;
  height: 33px;
  margin: auto;
  padding: 25px 85px 25px 41px;
  background-color: #ff0600;
  transition: 0.4s;
}

.contact_right_inner:hover {
  transform: scale(1.1, 1.1);
}

.contact_right p {
  float: right;
  color: #fff;
  font-size: 1.3rem;
}

footer {
  height: 93px;
  background-color: #aaa;
}

footer p {
  margin-left: 119px;
  font-size: 0.75rem;
  line-height: 93px;
}

.world_wrapper {
  position: relative;
  width: 100%;
  min-height: 200px;
}

.world_wrapper:before {
  content: "";
  display: block;
  padding-top: 28.125%;
}

.world_content {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

.world_text, .world_image {
  height: 100%;
  width: 50%;
  background-repeat: no-repeat;
  background-size: cover;
}

.world_image {
  float: left;
}

.world_text {
  background-color: #aaa;
  float: right;
}

.world_text h4 {
  padding: 4% 15px;
  height: 25%;
  margin: 0;
  color: #fff;
  font-size: clamp(20px, 2vw,26px);
  font-weight: bold;
}

p {
  color: #fff;
  margin: 0;
  font-size: clamp(14px, 1.8vw,22px);
}

.world_text p {
  padding: 0 20px;
  height: 45%;
}

.world_wrapper:nth-of-type(even)>.world_content>.world_image {
  float: right;
}

.world_wrapper:nth-of-type(even)>.world_content>.world_text {
  float: left;
}

/*まずはお決まりのボックスサイズ算出をborer-boxに */
*,
*:before,
*:after {
  -webkit-box-sizing: inherit;
  box-sizing: inherit;
}

html {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  font-size: 62.5%;
  /*rem算出をしやすくするために*/
}

.btn_wrapper {
  height: 30%;
  text-align: center;
  letter-spacing: 3vw;
  display: flex;
  justify-content: center;
  align-items: center;
}

.btn,
a.btn,
button.btn {
  font-size: 1vw;
  font-weight: 700;
  line-height: 1.5;
  position: relative;
  display: inline-block;
  padding: max(0.5vw,3px) max(2vw,20px);
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
  text-align: center;
  vertical-align: middle;
  text-decoration: none;
  letter-spacing: 0.1em;
  color: #212529;
  border-radius: 0.5rem;
  margin: 0 3%;
}

a.btn_browser {
  color: #fff;
  background-color: #eb6100;
  border-bottom: 5px solid #b84c00;
}

a.btn_browser:hover {
  margin-top: 3px;
  color: #fff;
  background: #f56500;
  border-bottom: 2px solid #b84c00;
}

a.btn_cluster {
  color: #fff;
  background-color: #007DD8;
  border-bottom: 5px solid #005aa5;
}

a.btn_cluster:hover {
  margin-top: 3px;
  color: #fff;
  background: #0094ee;
  border-bottom: 2px solid #005aa5;
}

/* a.btn_browser,a.btn_cluster {
  -webkit-box-shadow: 0 3px 5px rgba(0, 0, 0, .3);
  box-shadow: 0 3px 5px rgba(0, 0, 0, .3);
} */
.title {
  border-left: 8px solid #555;
  border-bottom: 8px solid #555;
  width: 100%;
  margin-top: 30px;
  padding: 5px 10px 0 10px;
  align-items: flex-end;
  display: flex;
}

.title h1 {
  color: #777;
  font-size: clamp(32px,4vw,48px);
  vertical-align: middle;
  bottom: 0;
  display: block;
}

.wrapper {
  background-color: #aaa
}

/*
.how2play_wrapper {
  position: relative;
  width: 100%;
}

.how2play_wrapper:before {
  content: "";
  display: block;
  padding-top: 28.125%;
}

.how2play_content {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}

.how2play_text, .how2play_image {
  height: 100%;
  width: 50%;
  background-repeat: no-repeat;
  background-size: cover;
}

.how2play_image {
  float: left;
}

.how2play_text {
  background-color: #aaa;
  float: right;
}

.how2play_text h4 {
  padding: 4% 15px;
  height: 25%;
  margin: 0;
  color: #fff;
  font-size: min(2vw, 40px);
}

.how2play_text p {
  padding: 0 20px 10px 20px;
}
 */
.orange{
  background-color: #FF8E51;
}
.blue{
 background-color: #51B6FF;
}

.wrapper.how2play {
   padding: 10px;
 }

 .how2play>h2{
   color: #fff;
   font-size:clamp(20px, 2vw,32px);
   font-weight: bold;
 }

h4 {
  color: #fff;
  font-size:clamp(14px, 1.8vw,22px);
}

.how2play > h5 {
  color: #fff;
  font-size:clamp(14px, 1.8vw,22px);
  margin-left: 40px;
}

.how2play > p {
  color: #fff;
  font-size:clamp(14px, 1.8vw,22px);
  margin:0 40px;
}

.inlnblck{
  display:inline-block;
  vertical-align: top;
}
.flex_parent{
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: flex-start;
    justify-content: flex-start;
  flex-wrap: wrap;
}
.flex_child{
    -webkit-flex-grow: 1;
    flex-grow: 1;
}
.centerimage{
  text-align: center;
  vertical-align: middle;
  padding: 30px 10px;
}
.how2play a:link{
  color: #44f
}
.how2play a:visited{
  color: #444
}
.how2play a:hover{
  color: #ccc
}
.how2play a:active{
  color: #888
}
.point{
  margin-left: 30px;
  font-size: clamp(18px,1.9vw,28px);
}

.wrapper.about {
   padding: 10px;
 }
.about >h4{
  margin-left: 10px;
    padding-top: 10px;
    font-weight: bold;
}
.about_content.annotation {
  margin-top: 10px;
}

.about_content {
  margin: 0 40px ;
  padding-bottom: 10px;
}
.annotation{
  color: #f22;
  margin-right: 8px;
}
.annotation p{
  font-size: clamp(11px,1.5vw,16px);
}
.history{
    color: #fff;
    margin: 0;
    font-size: clamp(14px, 1.8vw,22px);
}
.history.date{
  text-align: right;
}
.history.content{
  text-align: left;
  padding-left: 50px;
}