@charset "UTF-8";
:root {
  --font_jp: 'Noto Sans JP', "游ゴシック", YuGothic, "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN", "メイリオ", Meiryo, sans-serif;
  --font_en: 'Marcellus', serif;
}
* {
  margin: 0;
  padding: 0;
}
body {
  background: url(images/bg-gtop.jpg) no-repeat top center #ccadad;
  background-size: cover;
  font-family: var(--font_jp);
  letter-spacing: .08em;
  line-height: 1.6;
}
h1,
h2,
h3 {
  font-size: 14px;
  font-weight: normal;
  color: #5a4949;
}
p {
  font-size: 14px;
  color: #5a4949;
}
a {
  text-decoration: none;
  border-bottom: 1px solid #b99e9e;
  color: #5a4949;
}
header {
  padding: 10px 2%;
}
header h1 {
  text-align: right;
  font-size: 13px;
}
main {
  display: flex;
  justify-content: center;
}
.main {
  padding: 140px 0 100px 0;
  text-align: center;
}
.main h2 {
  margin: 0 0 20px 0;
  color: #5a4949;
}
.enter {
  display: block;
  padding: 20px;
  color: #b64f4f;
  font-size: 17px;
  letter-spacing: .2em;
  border: none;
}
.about-seo {
  width: 450px;
  margin: 40px auto 50px auto;
}
.about-seo p {
  font-size: 13px;
}
summary {
  display: flex;
  /* デフォルト▶矢印をリセット */
  justify-content: space-between;
  align-items: center;
  padding: 10px 30px 10px 30px;
  cursor: pointer;
  text-align: left;
  border-top: 1px solid #cabab6;
  color: #5a4949;
}
summary::-webkit-details-marker {
  display: none;
}
details:last-of-type {
  border-bottom: 1px solid #cabab6;
  margin-bottom: 50px;
}
summary:hover,
details[open] summary {}
summary::after {
  content: '+';
  margin-left: 30px;
  font-size: 20px;
  transition: transform .5s;
}
details[open] summary::after {
  transform: rotate(45deg);
}
details[open] .detail {
  animation: fadein 1s ease;
}
.detail {
  padding: 10px 30px 20px 30px;
  text-align: left;
}
@keyframes fadein {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

footer {
  width: 96%;
  bottom: 0;
  padding: 20px 2%;
  text-align: center;
}
footer p,
footer p a,
footer p small {
  font-size: 11px;
  color: #927470;
  line-height: 2;
}
footer p a {
  border: none;
}
br.sp {
  display: none;
}


@media screen and (max-width:768px) {
  body {
    box-sizing: border-box;
    letter-spacing: .02em;
    background-size: auto 100%;
  }
  header h1 {
    text-align: left;
    font-size: 11px;
  }
  .main {
    width: 100%;
    padding: 80px 5% 100px 5%;
  }
  .main h2 {
    font-size: 12px;
  }
  .main img {
    width: 100%;
    height: auto;
  }
  .about-seo {
    width: 100%;
    margin: 30px auto 50px auto;
  }
  br.sp {
    display: block;
  }
  footer {
    position: static;
    background: #ccadad;
  }
  footer p,
  footer p a,
  footer p small {
    font-size: 9.5px;
    line-height: 1.4;
    color: #4e4545;
  }
}