*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: #0a1628;
  color: #e8e4d8;
  font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
  font-size: 14px;
  line-height: 1.8;
}

.header {
    width: 100%;
    max-width: 680px;
    aspect-ratio: 9 / 5;
    margin: 0 auto;
}
.top_title {
    width: 100%;
    height: 100%;
    text-align: center;
    background-repeat: no-repeat;
}

.contents_bg {
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
}
.top_bg {
    width: 100%;
}
.wrapper {
    width: 100%;
    margin: 0 auto;
    background-size: 100% auto;
}
.display_off {
	display: none;
}