html{scroll-behavior: smooth;}
body{margin:0px;font-size:20px;line-height:1.5;font-feature-settings:"palt";font-family: "游ゴシック Medium", "Yu Gothic Medium", "游ゴシック体", "YuGothic", "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", "Meiryo", "verdana", sans-serif;position:relative;}
img{border:none;max-width:100%;margin:0px;padding:0px;display:block;}
a{text-decoration:none;width:25.4em;margin:1em auto 0;display:block;}
a:hover,a img:hover{opacity:.6;transition-duration:.3s;}
h1,h2{font-size:.9em;margin:0;padding:0;}

/* 本文ヘッダー */
div{background:url(img/bg.jpg) no-repeat center center;background-size:cover;width:100%;height:calc(100% + 5em);position:fixed;z-index:-1;top:-5em;}
header,article,footer{wodth:100%;max-width:37.5em;margin:0 auto;background:black}
header{padding-bottom:7.9em;margin-top:5em;display:block;}
#intro{padding-bottom:5.5em}
#main{padding-bottom:10em;}
#topic{padding-bottom:9em}
#point{padding-bottom:8em}
#form{padding-bottom:9em}
#form a{margin:2em auto 0}
footer{background:#595757;color:white;padding:2em 0}

footer table{width:auto;display:table;margin:0 auto;}
footer table th{text-align:center;width:10.7em;}
footer table td p{font-size:.7em;margin:1em 5em 0 0;}
a.gotop{position:fixed;width:4.35em;right:2em;bottom:2em;}

@media all and (min-width: 0) and (max-width: 749px)  {
div{display:none;}
header{margin-top:0em;}
body{font-size:2.67vw;}
header,section,article{overflow:hidden}
}