html,
body {
	background: #dbbba2;
}
ul.navigation {
	widows: 100%;
	display: flex;
	font-size: 1.6rem;
	margin: 0;
	padding: 0;
	flex-wrap: wrap;
}
ul.navigation li {
	flex: 1;
	display: flex;
	list-style: none;
	width: calc(100% / 4);
	word-wrap: break-word;
}
ul.navigation li a {
	width: 100%;
	display: inline-block;
	padding: 15px 20px;
	color: #fff;
	text-decoration: none;
	border: 5px solid #fff;
	border-bottom: 0;
	border-radius: 15px 15px 0 0;
	box-sizing: border-box;
}
ul.navigation li.other {
	padding: 15px 20px;
	text-decoration: none;
	border: 5px solid #fff;
	border-bottom: 0;
	border-radius: 15px 15px 0 0;
}
ul.navigation li a:hover,
ul.navigation li.other{
	font-weight: bold;
	color: #A81F31;
	background-color: rgba(255,255,255,0.5);
}
ul.navigation li a:hover img {
	opacity: 80%;
}
h1 {
	text-shadow: 1px 2px 3px #dbbba2;
}
h3 {
	color: #574a40;
}
h3::before {
	background: #dbbba2; /* 色 */
}
h3::after {
	background: #dbbba2; /* 色 */
}
.mainTop {
	margin: 0;
	padding: 0;
	width: 100%;
}
iframe {
	width: 100%;
}
@media screen and (max-width: 1000px) {
	h1{
		padding: 10px;
		position: relative;
		text-align:left;
		background: #dbbba2;
		display: block;
		top: 0;
		left: 0;
	}
	.mainArea {
		margin: 0 auto;
		border: 10px solid #dbbba2;
	}
	.mainTop h2 {
		padding: 4rem 0 0;
	}
}

#other ul.center {
	display: flex;
	flex-wrap: wrap;
	justify-content: left;
	gap: 16px;
}

#other ul.center:not(:last-child) {
	margin-bottom: calc(2.4rem + 30px);
}

#other ul.center li {
	width: calc(50% - 8px);
	text-align: left;
}

@media screen and (max-width: 780px) {
	#other ul.center li {
		width: 100%;
	}
}

#other ul.center li a {
	text-decoration: none;
	text-align: left;
	color: #000;
}

#other ul.center li.linkBlank a {
	display: flex;
}

#other ul.center li.linkBlank .img {
	max-width: 40%;
	height: 52.5%;
	display: flex;
	justify-content: center;
	align-items: center;
	overflow: hidden;
	margin-right: 20px;
}

#other ul.center li img {
	width: 100%;
}
#other ul.center li span {
	display: block;
}

#other ul.center li .title {
	font-size: 1.8rem;
	font-weight: bold;
}

#other ul.center li .day {
	font-size: 1.6rem;
}

#illustration .twitter-tweet {
	margin: 0 auto;
}

@media screen and (max-width: 780px) {
	#other ul.center li {
		width: 100%;
	}
	#other ul.center li:not(:last-child) {
		margin-bottom: 20px;
		padding-bottom: 20px;
		border-bottom: 1px dotted #dbbba2;
	}
}