html, body, p{
  margin: 0;
  padding: 0;
}

body{ 
  height:auto;
  background: #fff;
  transition: 1s;
  color : #000000;
  margin-right: auto;
  margin-left : auto;
  width:100%;
  font-size:62.5%;
  font-family: "Yu Mincho", YuMincho, "ヒラギノ明朝 Pro W3", "Hiragino Mincho Pro", "ＭＳ Ｐ明朝", "MS PMincho", serif;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2;
  width: 100%;
  transition: .3s;
  height: 170px;
  background-color: #fff;
  font-size:18px;
}

.headerbox {
    background-color: #f5f5f5;
    height: 10px;
}

.hero{
    margin-top: 170px;
    height: auto;
	overflow: hidden;
}

.img{
    height: auto;
	width: 100%;
}

.sliderbox {
    margin-top: 170px;
}

li {
    display: list-item;
    list-style: none;
    text-align: -webkit-match-parent;
}

article {
    color: #666;
}

.youtube iframe {
    width: 100%;
}

.capbox {
    width: 80%;
    text-align: center;
}

.cap {
    border-bottom: dotted;
}

.logobox {
    width: 320px;
    margin-left: auto;
    margin-right: auto;
}

p {
    font-size: 18px;
}

.newtext {
    text-decoration: underline;
    color: #778899;
}

.concept {
    margin-top: 30px;
    height: 50px;
    margin-bottom: 10px;
    color: #666;
}

.conceptbox {
    width: 80%;
    margin-left: auto;
    margin-right: auto;
    border-bottom: dotted 1px;
}

.site-logo img{
    height: 100px;
    width: auto;
}

.gnav {
    width: 800px;
    border-radius: 10px;
    margin-left: auto;
    margin-right: auto;
}

.gnav__menu{
    display: flex;
}

.gnav__menu__item{
    margin-left: 20px;
}

.gnav__menu__item a{
    color: #666;
    text-decoration: none;
    font-size: 18px;
    text-align: center;
}

.whitespase {
    margin-top: 30px
}

.copy {
    height: 60px;
    font-size: 14px;
    background-color: #fff;
    font-family: times;
    text-align: center;
    text-transform: none;
    font-weight: 400;
    color: #B3B3B3;
    margin-top: 30px;
    padding-top: 20px;
}

.footimg {
    height: 180px;
    margin-top: 30px;
}

.bottomimg {
    width: 100%;
    height: auto;
}

#page-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 77%;
}
#page-top a {
    background: #666;
    text-decoration: none;
    color: #fff;
    width: 100px;
    padding: 30px 0;
    text-align: center;
    display: block;
    border-radius: 5px;
}
#page-top a:hover {
    text-decoration: none;
    background: #999;
}