body{
	background-color: #F3F2ED;
}
#mainvisual{
	background-image: url("/img/performance/高性能img.jpg");
	background-size: cover;
	background-position: center top;
	height: 600px;
	position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
#mainvisual_inner{
    text-align: center;
}
#mainvisual_inner h1{
    color: #fff;
    text-shadow: 0 2px 6px rgba(0,0,0,0.9);
    font-size: 2em;
    margin: 15px 0 0 ;
}
#management_head_area{
	background-color: #6C6B6C;
	color: #fff;
	padding: 30px 0;
	font-size: 1.2em;
}
#management_area{
	padding: 40px 0 60px;
}
#img_area {
	padding: 0 0 80px;
}
#img_area img{
	width: 100%;
}

#management_head_area::before{
    content: "";
    position: absolute;
    top: -15px;
    left: 0;
    width: 100%;
    height: 15px;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0.15) 50%,
        rgba(0, 0, 0, 0.3) 100%
    );
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.8s ease-out;
}
#section-title-management{
    z-index: -1;
    top: -42px;
    height: 42px;
    overflow: hidden;
}
#section-title-management img{
	height: 45px;
}

@media screen and (max-width:767px){
	#mainvisual{
		height: 250px;
		background-image: url("/img/performance/高性能img_sp.jpg");
	}
	#mainvisual_logos{
		max-width: 100%;
		margin: auto;
	}
	#mainvisual_inner h1{
		font-size: 1.1em;
	}
	#section-title-management img{
		height: 28px;
	}
	#section-title-management{
		top: -25px;
	    height: 25px;
	}
	#management_head_area{
		padding: 15px 0;
		font-size: 1em;
	}
	#management_area{
		padding: 20px 0 40px;
	}
}