.mt-50{
	margin-top: 50px;
}

.mt-30{
	margin-top: 30px;
}

.textcontainer{
	width: 90%;
	box-sizing: border-box;
	border: 1px solid #E1E1E1;
	margin: 0 auto;
	padding: 2.5em;
}

.textcontainer_ttl{
	font-size: 30px;
	margin-bottom: -10px;
	font-family: YuMincho, "Yu Mincho", "Hiragino Mincho ProN", "serif";
}

.p_underline {
  border-bottom:2px solid #666666; /*下線の太さと色*/
  padding-bottom:2px;/*テキストから下線までの間隔*/
}

.ttl{
	font-size: 20px;
	margin-bottom: -10px;
	font-family: YuMincho, "Yu Mincho", "Hiragino Mincho ProN", "serif";
	text-align: center;
	margin-top: 1.5em;
	margin-bottom: 1em;
	background-color:aliceblue;
}

.item_setsumei{
	text-align: left;
	font-size: 14px;
	line-height: 1.5;
	padding: 0 20px;
}

.item_shiyou{
	text-align: left;
	font-size: 12px;
	line-height: 1.2;
	padding: 0 5px;
}

.shiyou_ttl{
	font-size: 14px;
	font-weight: bold;
}

.box_image img {
    display: block;
    max-width: 100%;
}

.box_text {
    box-sizing: border-box;
}

h2{
	font-size: 16px;
}


@media screen and (max-width: 767.98px) {
    .box_text {
        padding: 50px 20px;
    }
	
	.textcontainer_ttl{
		font-size: 20px;
	}

}
@media screen and (min-width: 768px) {
    .box {
        position: relative;
    }
    .box_text {
        padding: 60px;
    }
}
@media screen and (min-width: 768px) and (max-width: 1100px) {
    .box_text {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translateX(-50%) translateY(-50%);
        width: 80%;
        background-color: rgba(255, 255, 255, 0.95);
    }
}
@media screen and (min-width: 1100px) {
    .box_text {
        border: 0px solid #E1E1E1;
        background-color: #fff;
		opacity: 0.85;
    }
    .box_image {
        position: relative;
        top: 0px;
        left: 50%;
        transform: translateX(-100%);
        width: 50%;
        max-width: 700px;
    }
    .box_text {
        position: absolute;
        top: 50%;
        left: 47%;
        transform: translateY(-50%);
        width: 50%;
        max-width: 700px;
    }
    .box:nth-of-type(even) .box_image {
        transform: translateX(0%);
    }
    .box:nth-of-type(even) .box_text {
        left: 53%;
        transform: translateX(-100%) translateY(-50%);
    }
}