*{margin:0;padding:0;box-sizing:border-box;font-family:'Roboto', "ヒラギノ角ゴ Pro", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif}a,a *{color:#04397b;text-decoration:none;word-wrap:break-word;transition:.3s}#wrapper{min-height:100vh;padding-top:43px}header{position:fixed;top:0;left:0;display:flex;justify-content:center;align-items:center;width:100%;height:43px;border-bottom:1px solid #ccc;background-color:#fff;z-index:10}header h1{font-size:1rem}header .bt_back{display:none !important;position:absolute;left:0;display:flex;justify-content:center;align-items:center;width:2.75rem;height:2.75rem;padding:0;min-width:2.75rem}header .bt_back:before{content:'';width:152%;height:152%;position:absolute;left:-26%;top:-26%;background-image:-webkit-radial-gradient(center, circle cover, rgba(255,255,255,0.15) 66%, rgba(255,255,255,0) 66%);background-image:radial-gradient(circle at center, rgba(255,255,255,0.15) 66%, rgba(255,255,255,0) 66%);background-repeat:no-repeat;background-position:center;background-size:100% 100%;opacity:0;pointer-events:none;-webkit-transition-duration:.6s;transition-duration:.6s}header .bt_back:after{content:" ";display:block;width:1rem;height:1rem;background-image:url("../../lib/img/btn_back.png");background-repeat:no-repeat;background-position:0 0;background-size:auto 200%}#contents{position:relative;min-height:calc( 100vh - 43px);margin:0 auto;padding-top:20px;overflow-y:auto}#contents>.inner{position:relative;max-width:640px;margin:0 auto}@media screen and (max-width: 767px){#contents{padding-top:0}}