.txt_period ul {
    font-weight: bold;
    display: flex;
    column-gap: 10px;
    justify-content: center;
}

.tbl_reg {
	margin:15px 0;
	background: #fff;
}
	.tbl_reg caption {
		text-align:left;
		font-weight:bold;
	}
	.tbl_reg th {
		text-align:center;
		padding:5px;
		border:1px solid #aaa;
		background:#eee;
		vertical-align: middle;
	}
	.tbl_reg td {
		padding:5px 1em;
		border:1px solid #aaa;
		text-indent:0;
		vertical-align:middle;
	}
.tbl_reg td.bg01 {
	background: #eee;
}
.tbl_reg td.bg00 {
	background: #F6F6F6;
}

dl.q_and_a {
  margin: 1.5em 0;
	margin-top: 1.5em;
  margin-top: 1.5em;
}
dl.q_and_a dt {
  margin: 0;
  padding-bottom: 0;
  padding: 10px 0 10px 30px;
  font-weight: 700;
}
dl.q_and_a dt .head {
  color:rgb(40,80,180);
}
dl.q_and_a dd {
  border-bottom: solid 1px rgb(200,200,200);
  padding-top: 0;
  padding-left: 30px;
  margin-bottom:10px;
	padding-bottom: 10px;
}
dl.q_and_a dd .head {
  color: #cc0700;
}
dl.q_and_a .head {
  -webkit-box-sizing: border-box;
  display: inline-block;
  margin-left: -2.4em;
  padding-right: .2em;
  width: 2.4em;
  text-align: right;
}


@media screen and (max-width: 640px){
	
	.txt_period ul {
        flex-direction: column;
    }
}