html {
  position: relative;
  font-size: 62.5%;
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  width: 100%;
  height: 100%;
  margin: 0 auto;
  font-family: 'Noto Sans', '游ゴシック体', YuGothic, '游ゴシック', 'Yu Gothic',
    'ヒラギノ角ゴシック', 'メイリオ', sans-serif;
  font-weight: 500; /*游ゴシック Windows Chrome　かすれ対策*/
  font-size: 14px;
  font-size: 1.4rem;
  font-weight: bold;
  line-height: 1.75;
  color: #222222;
}
body.gradation {
  background-image: linear-gradient(90deg, #004cfa, #008744);
  background-repeat: repeat-x;
}

a {
  transition: 0.3s;
  display: block;
}
a:hover {
  opacity: 0.7;
  cursor: pointer;
}

.wrapper {
  width: 100%;
  position: relative;
  margin: auto;
}
.wrapper.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  padding: 60px;
}

.wrapperr.login div {
  position: absolute;
  top: 0;
  left: 0;
  transform: translate(-50% -50%);
}
.loginImg {
  max-width: 500px;
  margin: auto;
}
.wrapper.black {
  background: #000;
}
.img_wrapper.gif {
  background-image: url(../assets/images/ipad_bg.jpg);
  background-repeat: no-repeat;
  position: relative;
}
.title {
  width: 100%;
  background: #ccc;
  padding: 20px;
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
}
.inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: auto;
}
a {
  margin-bottom: 30px;
  padding: 10px 15px;
  background-color: #0e3156;
  border-radius: 4px;
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 2px 2px 4px #bbb;
}

.inner_wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 20px;
  border-bottom: 1px solid #ccc;
  margin-bottom: 30px;
}
.inner_wrapper a {
  width: calc((100% - 15px) / 2);
  margin-right: 15px;
  font-size: 1.2rem;
  text-align: center;
}
.inner_wrapper a:nth-child(2n) {
  margin-right: 0;
}
.img_wrapper {
  width: 100%;
  margin: auto;
  text-align: center;
  /*height: 100dvh;*/
  /*aspect-ratio: 9/16;*/
}
.img_wrapper img {
  margin: auto;
  width: 100%;
  height: 100%;
  /*aspect-ratio: 9/16;*/
}
.img_wrapper.gif {
  background-image: url(../images/ipad_bg2.jpg);
  background-repeat: no-repeat;
  background-size: contain;
  position: relative;
}

.index_wrapper {
  padding: 30px;
  position: relative;
}
.video {
  width: 100%;
  height: 100dvh;
  aspect-ratio: 9/16;
  background: transparent;
}
button {
  width: 100%;
  height: 100%;
  display: block;
  background: transparent;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  cursor: pointer;
  border: none;
  display: none;
}

@media screen and (max-width: 768px) {
  .wrapper.login {
    padding: 40px;
  }
  .loginImg {
    max-width: 100%;
    margin: auto;
  }
}

@media screen and (max-width: 450px) {
  .wrapper.login {
    padding: 20px;
  }
}