@charset "UTF-8";
/**
 * NTT PC
 */

/*-------------------------------------------------------------*/
/* main */

/* useful */
.useful {
  padding: 100px 0;
  background: #1e2534;
}
.column_ttl {
	margin-top: 80px;
}
.useful_box {
	display: flex;
	flex-wrap: wrap;
	gap: 40px;
}
.useful_item {
	position: relative;
	padding: 22px 24px 85px;
	width: calc((100% - 40px) / 2);
	background: #fff;
}
.column .useful_item {
	width: calc((100% - 80px) / 3);
}
.useful_thm {
	margin-bottom: 30px;
	text-align: center;
}
.useful_thm img {
	max-width: 100%;
}
.useful_h3 {
	margin-bottom: 20px;
	font-size: 20px;
	font-weight: bold;
	text-align: center;
}
.column .useful_h3 {
	text-align: left;
}
.useful_btn {
	position: absolute;
	bottom: 22px;
	left: 50%;
	transform: translateX(-50%);
	width: calc(100% - 48px);
	max-width: 350px;
	margin: 0 auto;
}
.useful_btn a {
	position: relative;
	display: block;
	padding: 16px 40px;
	background: linear-gradient(180deg,#1D70AA,#1DB7AA);
	color: #fff;
	font-weight: bold;
	text-align: center;
	line-height: 1;
	box-shadow: 0 5px 0 #CCE1F1;
	border-radius: 5rem;
}
.useful_btn a:hover {
	opacity: .7;
}
.useful_btn a::before ,
.useful_btn a::after {
	content: "";
	display: block;
	position: absolute;
	right: 20px;
	width: 3px;
	height: 9px;
	background: #fff;
}
.useful_btn a::before {
	top: calc(50% - 7px);
	transform: rotate(-45deg);
}
.useful_btn a::after {
	top: calc(50% - 1px);
	transform: rotate(45deg);
}
@media (max-width: 1399px) {
}
@media (max-width: 1199px) {
	.useful_h3 {
		font-size: 18px;
	}
}
@media (max-width: 991px) {
	.useful_h3 {
		font-size: 18px;
	}
	.useful_item {
		padding: 15px 15px 75px;
		width: 100%;
	}
	.column .useful_item {
		width: 100%;
	}
	.useful_btn {
		bottom: 15px;
	}
}
@media (max-width: 767px) {
  .useful {
    padding: 40px 0;
  }
	.useful_h3 {
		font-size: max(3.5vw,12px);
	}
}
@media (max-width: 575px) {
}