section.rules{
    background-color: rgb(255, 255, 255);
    padding-top: 0;
}

.wrap_hero{
  background-image:url(../img/svg/wave-white.svg);
  background-size: cover;
  background-repeat: no-repeat;
  background-position:bottom center;
  min-height: 300px;
  padding-top: 20%;
  border-bottom: solid #EDF4FE 1px;
}
ul.link{
    display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: left;
  margin: 80px 10vw;
  gap:40px
}
ul.link a{
    border-bottom:solid 4px #8b99e9;
    position: relative;
    padding-bottom: 8px;
}
ul.link a:before{
    content:"";
      width: 0;
  height: 0;
  border-style: solid;
  border-right: 7px solid transparent;
  border-left: 7px solid transparent;
  border-top: 8px solid #8b99e9;
  border-bottom: 0;
  position: absolute;
  right: 0;
  top:50%;
  transform: translateY(-50%);
  transition: ease .4s;
}
ul.link a:hover{
    color:#8b99e9
}
ul.link a:hover:before{
  border-top: 8px solid #6873b3;
  border-bottom: 0;
  transform: translateY(-20%);
  transition: ease .4s;
}

section.rules .kiyaku{
    background-color: #f1f1f1;
    padding: 5vw 10vw;
    margin: 5vw auto 0;
}
section.rules .kiyaku p:first-child{
    font-size: 2.1rem;
    margin-bottom: 1rem;
}
section.rules .kiyaku p:nth-child(2){
    text-align: left;
}

.wrap_rules {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: auto; 
    gap: 50px;
     background-color: #fff;
     padding: 5vw;
}
.bg_check{
        padding: 5vw 5vw 0;
        
  background-color: #ffffff;
  background-image: linear-gradient(90deg, #e5e9f5 1px, transparent 1px), linear-gradient(#e5e9f5 1px, transparent 1px);
  background-position: 10px 10px;
  background-size: 21px 21px;
    }
.wrap_rules h2{
    background-color: beige;
    padding: 2rem 0;
    margin: 0;
    background: #d5daef;
background: linear-gradient(90deg, rgba(213,218,239, 1) 0%, rgba(233,247,254, 1) 100%);
font-weight: bold;
color: #313757;

}
.wrap_rules h2 span{
    position: relative;
    margin-left: 20px;
    padding-left: 10px;

}
.wrap_rules h2 span:before{
    content: "";
    min-width: 50px;
    min-height: 50px;
    position: absolute;
    left:-50px;
    top:50%;
    transform: translateY(-50%);
    background-image: url(../img/icon-cell.png);
    background-size: contain;
    background-repeat: no-repeat;
}
.wrap_rules .content p,
.wrap_rules .content ul{
    text-align: left;
    margin: 1.5rem 0;
}

.wrap_rules .content ul.border{
    border-left: 4px #7493E8 solid;
    background-color: #f1f1f1;
    padding: 3rem;
    font-size: 1.3rem;
}

.wrap_rules .content ul.bg_gray{
    background-color: #ebedef;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    padding: 3rem;
}
.wrap_rules .content ul.bg_blue{
    padding: 3rem;
    background-color: #e9f0fb;

}
.wrap_rules .content ul.list-square li:before{
    content:"■";
    color: #8bb2d9;
    margin-right: 5px;
}

.wrap_rules .content ul.list-caution li:before{
    content:"";
    margin-right: 5px;
    width: 1.6rem;
    height: 1.6rem;
  display: inline-block;
  background: url("../img/svg/icon-caution.svg") no-repeat center / contain;
  vertical-align: middle;
}
span.border{
  display: block;
  width: 100%;
  height: 1px;
  background-color: #acb3d6;
}
.wrap_rules .content p span.blue{
    background-color: #8bb2d9;
    color: #fff;
    padding: 1px 10px;
}
.wrap_rules p.box{
    border: solid 1px #6470b3;
    padding: 10px;
    color: #6470b3;
    text-align: center;
}
span.lightbulb{
  display: inline-block;
  width: 1.6em;
  height: 1.6em;
  margin-right: 0.5em;
  background: url("../img/icon-light.webp") no-repeat center / contain;
  vertical-align: middle;
}
.content .flex {
    gap:50px
}
.content .flex div{
    flex: 1;
}
.div5 {
    grid-column: span 2 / span 2;
}
.div6 {
    grid-column: span 2 / span 2;
}
.div7 {
    grid-column: span 2 / span 2;
}
.div8 {
    grid-column: span 2 / span 2;
}
a.link_square{
    background-color: #8b93c0;
    max-width: 260px;
    margin-left: auto;
}
.wrap_date{
    padding: 5vw 0;
    text-align: right;
    border-top: #6470b3 1px solid;
    margin: 5vw 10vw 0;
}

@media screen and (max-width: 768px){
    
.wrap_rules {
     padding: 10px;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
}
.bg_check{
        padding: 15vw 3vw 0;
    }
.wrap_rules .content ul.bg_gray{
    grid-template-columns: repeat(1, 1fr);
}
ul.link{
  grid-template-columns: repeat(2, 1fr);
  margin: 40px 4vw;
  gap:30px
}
section.rules .kiyaku{
    padding: 5vw;
}
.content .flex {
    gap:0px
}
.div1 {
    grid-column: span 2 / span 2;
}

.div2 {
    grid-column: span 2 / span 2;
    grid-row-start: 2;
}

.div3 {
    grid-column: span 2 / span 2;
    grid-row-start: 3;
}

.div4 {
    grid-column: span 2 / span 2;
    grid-row-start: 4;
}

.div5 {
    grid-column: span 2 / span 2;
    grid-row-start: 5;
}

.div6 {
    grid-column: span 2 / span 2;
    grid-row-start: 6;
}

.div7 {
    grid-column: span 2 / span 2;
    grid-row-start: 7;
}

.div8 {
    grid-column: span 2 / span 2;
    grid-row-start: 8;
}

.div9 {
    grid-column: span 2 / span 2;
    grid-row-start: 9;
}
     
}
/***********/