/* CSS Document */
html {
  font-size: 10px;
}
body {
  font-family: "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "Noto Sans JP", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
  font-size: 17px;
  color: #000;
  font-weight: 400;
  background: #fff;
  letter-spacing: 2px;
  line-height: 1.7;
}
@media (max-width: 768px) {
  body {
    letter-spacing: normal;
    font-size: 15px;
    line-height: 1.7;
  }
}
*,
*:before,
*:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -o-box-sizing: border-box;
  -ms-box-sizing: border-box;
  box-sizing: border-box;
}
img {
  vertical-align: middle;
  max-width: 100%;
}
@media (max-width: 768px) {
  .mbCont {
    margin-bottom: 30px;
  }
  .graybox {
    padding: 10px;
  }
}
footer,
footer a {
  background: #000;
  padding: 10px;
  color: #fff;
  text-align: center;
}
table {
  margin: 4em 0;
  font-size: 16px;
  width: 100%;
  border-collapse: collapse;
}
table tr {
  border-bottom: solid 2px #fff;
}
table tr:last-child {
  border-bottom: none;
}
table th {
  position: relative;
  background-color: #616161;
  color: #fff;
  text-align: center;
  padding: 10px 0;
  width: 150px;
  vertical-align: middle;
}
table th:after {
  display: block;
  content: "";
  width: 0px;
  height: 0px;
  position: absolute;
  top: calc(40%);
  right: -10px;
  border-left: 10px solid #616161;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
}
table td {
  background-color: #eee;
  padding: 10px 10px 10px 40px;
  vertical-align: middle;
}
.graybox {
  padding: 30px;
  background: #f6f6f6;
  border-radius: 10px;
}
iframe,
audio {
  width: 100%;
}
iframe.youtube {
  max-width: 640px;
  height: 400px;
}
.logo {
  padding: 20px;
}
.logo img {
  width: 250px;
}
@media (max-width: 768px) {
  .graybox {
    padding: 10px;
  }
}
@media (max-width: 640px) {
  iframe,
  iframe.youtube {
    height: calc(56.40625vw);
  }
}