@charset "UTF-8";

:root {
  color-scheme: light;
}
html, body, div#wrapper {
  height: 100%;
  min-height: 100%;
}

.top .kv {
  max-width: 1920px;
  height: 100%;
  margin: 0 auto;
  background-position: center top;
  background-size: contain;
  background-repeat: no-repeat;
}
@media screen and (max-width: 600px) {
  .top .kv {
    background-image: url(../images/common/home-sp-bg.png);

    aspect-ratio: 1 / 1;
  }
}
@media screen and (min-width: 601px) {
  .top .kv {
    background-image: url(../images/common/home-bg.png);

    aspect-ratio: 3 / 2;
  }
}

h1 {
  width: 0;
  height: 0;
  overflow: hidden;
}

.nav-contents-menu, .nav-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 1920px;
  margin: 0 auto;
  margin: 20px;

  gap: 30px;
}

.nav-contents-menu a {
  display: inline-block;
  max-width: 300px;
}

.nav-menu {
  margin-top: 60px;
}
.nav-menu .btn {
  display: inline-block;
  min-width: 10em;
  padding: .5em 1em .6em;
  border-radius: 50px;
  background-color: orange;
  color: #ffffff;
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  text-align: center;
}
.nav-menu .btn span.rubi {
  display: block;
  font-size: .5em;
}
@media screen and (max-width: 600px) {
}
@media screen and (min-width: 601px) {
  .nav-menu .btn {
    font-size: clamp(20px, 10.912px + 1.52vw, 40px);
  }
}
@media screen and (min-width: 769px) {
  .nav-contents-menu a {
    max-width: 360px;
  }
}
@media screen and (min-width: 1920px) {
  .nav-menu .btn {
    font-size: 40px;
  }
}

.annotation {
  margin: 120px auto 60px;
  padding-left: 20px;
  padding-right: 20px;
}
.annotation .content-inner {
  width: 100%;
  max-width: 1200px;
  margin-right: auto;
  margin-left: auto;
}
.annotation .block {
  max-width: 640px;
  margin-right: auto;
  margin-left: auto;
  padding: 20px;
  border: 3px double;
  border-radius: 5px;
  font-size: 14px;
}
.annotation img {
  display: inline-block;
  margin: 20px 10px 0;
}