@charset "UTF-8";

/* ===================================================

  ir index

=================================================== */

/* //////////////////////////////////////////////////////////////////////

 Index

////////////////////////////////////////////////////////////////////// */

.index_02::after{
  clear:both;
  content:"";
  display:table;
  line-height:0;
}
.index_02{
  margin-bottom:52px;
}
.index_02 li{
  float:left;
  width:calc((100% - 16px*3) / 4);
  position:relative;
  margin-right:16px;
}
.index_02 li:nth-child(4n){
  margin-right:0;
}
.index_02 li.index_02-img{
  width:100%;
}
.index_02 li .index_02-txt::before{
  content:"";
  display:block;
  position:absolute;
  top:-17px;
  left:0;
  width:100%;
  height:17px;
  transform-origin:0 100%;
  background:url(/ir/images/img-boxtop_01.png) no-repeat bottom;
  z-index:1;
}
.index_02 li .index_02-txt{
  font-size:2rem;
  font-weight:normal;
  display:table;
  background:rgba(245,180,0,0.9);
  width:100%;
  box-sizing:border-box;
  padding:15px 20px 35px;
  text-shadow:0px 0px 3px #7d7d7d;
  text-align:center;
  position:absolute;
  bottom:0;
  z-index:2;
}
.index_02 li .index_02-txt::after{
  content:'';
  display:block;
  background-color: #fff;
  width:20px;
  height:1px;
  margin-left:-10px;
  box-shadow:0 0 3px #888;
  position:absolute;
  bottom:25px;
  left:50%;
}
.index_02 li .index_02-txt span {
  color:#fff;
  text-decoration:none;
  display:table-cell;
  vertical-align:middle;
}

@media screen and (max-width:1000px){
.index_02 li .index_02-txt{
  font-size:1.6rem;
  padding:10px 10px 25px;
}
.index_02 li .index_02-txt::after{
  bottom:20px;
}
}

@media screen and (max-width:767px){
.index_02 li .index_02-txt{
  padding:5px 5px 20px;
}
.index_02 li .index_02-txt::after{
  bottom:15px;
}
}

@media screen and (max-width:640px){
.index_02 li{
  width:calc(50% - 10px);
  margin-right:10px;
  margin-bottom:10px;
}
.index_02 li:nth-child(4n){
  margin-right:10px;
}
.index_02 li:nth-child(2n){
  margin-right:0;
}
.index_02 li .index_02-txt{
  padding:5px 5px 20px;
}
.index_02 li .index_02-txt::after{
  bottom:15px;
}
}