@media (max-width: 640px){

header .left a,
header img,
#wrapper,
nav > ul,
header {
    width: 100%;
}
.titlewrap.album div {
    float: none;
}
.movie {
     position: relative;
     padding-bottom: 56.25%; /*アスペクト比 16:9の場合の縦幅*/
     height: 0;
     overflow: hidden;
}
 
.movie iframe {
     position: absolute;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
}
header {
    margin: 0;
	padding: 10px;
	box-sizing: border-box;
}
header > div {
	width: 100%;
	float: none;
}
header > div.right {
	margin-top: -20px;
}
nav {
    margin-top: 0;
	padding: 10px;
	box-sizing: border-box;
}
nav > ul > li {
    width: 50%;
}
nav > ul > li:nth-child(1),
nav > ul > li:nth-child(2) {
	margin-bottom: 15px;
}
nav > ul > li:nth-child(3) {
	border-left: 1px solid #fff;
}
/*-----------*/
.description {
    width: 100%;
    margin-bottom: 40px;
    background: none;
    height: auto;
}
.description p {
	display: block;
}
#cdlist ul {
    margin-right: -10px;
}

#cdlist ul li {
    flex: 1 calc(100% / 2 - 10px);
    margin: 0 10px 10px 0;
    max-width: 50%;
    border: 1px solid #fff;
    box-sizing: border-box;
    border-radius: 10px;
    text-align: center;
}
#cdlist ul li img {
	width: 100%;
}
#cdlist ul li a {
    display: block;
    width: 100%;
    height: 100%;
    padding: 10px 10px 30px;
    box-sizing: border-box;
    position: relative;
}
#cdlist .opa05 {
    padding: 10px;
}
#cdlist .album div div {
    width: 100%;
}
#cdlist .album div div:first-child {
    max-width: 100%;
}
#cdlist .album div div:last-child {
    width: 100%;
    height: 178px;
    text-align: center;
    background: url(../images/album_text.png) no-repeat center;
}
#cdlist .album div {
	text-align: center;
    float: none;
}
/*-----------*/
#wrapper {
	width: calc( 100% - 20px);
	margin: 0 10px;
}
#cddetail .img {
	width: 100%;
	text-align: center;
	margin: 0;
}
#cddetail img {
	margin: 0 auto 40px;
}
#cddetail {
    padding: 20px;
}
#cddetail .title img {
	max-width: 100%;
}
.cregit dl {
    width: 100%;
    text-align: center;
    padding: 30px 0px;
}
.cregit dt {
    text-align: center;
    margin-bottom: 0px;
    font-size: 12px;
}

}