.maindesign {
	color: #333;
	margin-block-start: 30px;
}
.maindesign *,
.maindesign *:before,
.maindesign *:after {
	box-sizing: border-box;
	min-height: 0%;
}

.maindesign .mt-leave {
	margin-top: 50px;
}
.maindesign .mt-moderate {
	margin-top: 30px;
}
.maindesign .mt-close {
	margin-top: 20px;
}
.maindesign .mt-thin {
	margin-top: 10px;
}
@media screen and (max-width: 767px) {
	.maindesign .mt-leave {
		margin-top: 30px;
	}
	.maindesign .mt-moderate {
		margin-top: 20px;
	}
	.maindesign .mt-close {
		margin-top: 15px;
	}
}

.maindesign img {
	width: 100%;
	height: auto;
	display: block;
}

.maindesign .lead-text {
	font-size: 1.1rem;
	line-height: 1.5;
}
@media screen and (max-width: 767px) {
	.maindesign .lead-text {
		font-size: 0.95rem;
	}
}

.maindesign .feature-hdg1 {
	position: relative;
}
.maindesign .feature-hdg1__ttl {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	display: flex;
	justify-content: center;
	align-items: center;
	width: 80%;
	height: 80%;
	background-color: rgba(0, 0, 0, 0.3);
	color: #fff;
	font-weight: bold;
	font-size: 3.75rem;
	letter-spacing: 0.05em;
	text-shadow: 2px 3px 3px rgba(0, 0, 0, 0.5);
}

@media screen and (max-width: 767px) {
	.maindesign .feature-hdg1__ttl {
		width: 90%;
		font-size: 7vw;
	}
}

.maindesign .lr-heading {
	border-left: 4px solid #f00;
	padding: 0.3rem 1rem;
	font-size: 1.5rem;
}

.maindesign .catchphrase {
	font-size: 1.35rem;
	line-height: 1.5;
}
@media screen and (max-width: 767px) {
	.maindesign .catchphrase {
		font-size: 1rem;
	}
}

.maindesign .menu_column {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 15px;
}
.maindesign .menu_column > li,
.maindesign .menu_column a {
	display: contents;
}
.maindesign .menu_column__card {
	display: grid;
	grid-template-rows: subgrid;
	grid-row: span 2;
	padding: 15px;
	border: 1px solid #ccc;
	gap: 10px;
}
.maindesign .menu_column__card:hover {
	transition: 0.6s;
	opacity: 0.75;
}
.maindesign .menu_column__img--gray {
	background-image: linear-gradient(136deg, rgba(148, 162, 169, 1), rgba(159, 172, 177, 1) 25%, rgba(177, 184, 190, 1) 75%, rgba(190, 196, 199, 1)),
		linear-gradient(127deg, rgba(148, 162, 169, 1), rgba(190, 196, 199, 1));
}
.maindesign .menu_column__name {
	font-weight: bold;
	text-align: center;
	font-size: 1.25rem;
	line-height: 1.15;
	color: #333;
	display: flex;
	align-items: center;
	justify-content: center;
}

@media screen and (max-width: 767px) {
	.maindesign .menu_column {
		grid-template-columns: repeat(2, 1fr);
		gap: 10px;
	}
	.maindesign .menu_column__card {
		padding: 8px;
	}
	.maindesign .menu_column__name {
		font-size: 1rem;
	}
}

.maindesign .relation-column {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px 50px;
}
.maindesign .relation-column > li,
.maindesign .relation-column a {
	display: contents;
}
.maindesign .relation-column__card {
	position: relative;
	box-shadow: rgba(99, 99, 99, 0.2) 0px 2px 8px 0px;
	display: flex;
	justify-content: space-between;
	align-items: center;
	border-radius: 5px;
	overflow: hidden;
	padding: 20px 15px 15px 20px;
}
.maindesign .relation-column__card::after {
	content: '';
	position: absolute;
	top: 5px;
	right: 5px;
	border-top: 10px solid #1e91d1;
	border-left: 10px solid rgba(0, 0, 0, 0);
	border-right: 10px solid #1e91d1;
	border-bottom: 10px solid rgba(0, 0, 0, 0);
}
.maindesign .relation-column__card:hover {
	transition: 0.6s;
	opacity: 0.75;
}
.maindesign .relation-column__ttl {
	font-size: 1.5rem;
	font-weight: bold;
	width: 72%;
	color: #333;
	line-height: 1.15;
}
.maindesign .relation-column__img {
	width: 24%;
}

@media screen and (max-width: 767px) {
	.maindesign .relation-column {
		grid-template-columns: repeat(1, 1fr);
	}
	.maindesign .relation-column__ttl {
		font-size: 1.1rem;
	}
}