div.about_main {
	background-image: url("../img/AdobeStock_449663267.webp");
	background-repeat: no-repeat;
	background-size: cover;
	background-position: center;
    position: relative;
}

div.about_main::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: black;
    opacity: 0.2;
}


div.about_main h1 {
    position: relative;
    z-index: 1;
    color: white;
    font-size: 2rem;
    text-shadow: #00000047 1px 0 10px;
    height: 256px;
    width: 100%;
    max-width: 1450px;
    margin: auto;
    display: flex;
    align-items: center;
    width: 90%;
    font-weight: bold;
}
div.booktop h3 {
	padding: 14px 4% 30px 4%;
	font-size: 1rem;
	text-align: center;
	line-height: 2;
	color: #454545;
	font-weight: 400;
}
div.booktop h2 {
	padding: 61px 4% 20px;
	font-size: 1.6rem;
	font-weight: bold;
	text-align: center;
	/* background: white; */
	color: #1D7E5C;
}
body {
	font-family: noto sans jp;
}

p.bound {
	font-size: 0.9rem;
	text-align: right;
	padding: 20px 14% 0 0;
}

.pc_only img, .sp_only img {
    max-width: 100%;
    height: auto;
}

@media screen and (min-width: 601px){
    .sp_only {
        display: none;
    }
}

@media screen and (max-width: 600px) {
	div.about_main h1 {
    font-size: 1.4rem;
    /* padding-top: 70px; */
    /* padding-left: 70px; */
    height: 160px;
    width: 90%;
}

div.booktop h3 {
	padding: 0px 5% 30px 5%;
	font-size: 13.7px;
	text-align: center;
	line-height: 1.6;
	text-align: left;
}
	div.booktop h2 {
    padding: 20px 5%;
    line-height: 1.7;
    font-size: 0.9rem;
    text-align: center;

}

.pc_only {
    display: none;
}
}