:root {
  --bg: #f8f6ef;
  --surface: #fffdf8;
  --ink: #1e1f20;
  --buttonletter: #ffffff;
  --entrybtnbg:#ffffff;
  --muted: #5f6368;
  --line: #d8d0be;
  --accent: #a63227;
  --accent-soft: #f1ddd8;
  --nav-offset: 88px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

img{
	vertical-align: bottom;
}

body {
  margin: 0;
  min-width: 460px;
	-webkit-text-size-adjust: 100%;
	font-family:  "M PLUS Rounded 1c", serif;
	font-weight: 400;
	font-style: normal;
  font-size: 16pt;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgb(166 50 39 / 12%), transparent 30%),
    linear-gradient(180deg, #fdfaf4 0%, var(--bg) 55%, #f4efe3 100%);
  padding-top: 72px;
}

.is-windows body {
  font-family: "Meiryo", "Yu Gothic", "YuGothic", sans-serif;
}


.displayNone{
	display: none;
}

.container {
  width: min(100% - 32px, 1280px);
  margin-inline: auto;
}

.site-header {
  padding-top: 24px;
}

.nav-toggle {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 40;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgb(255 253 248 / 95%);
  display: grid;
  place-items: center;
  gap: 4px;
  padding: 10px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
}

.kicker {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
}

h1 {
  margin: 10px 0 0;
  font-size:clamp(2.1rem, 6vw, 3.8rem);
  line-height: 1.25;
  color:var(--accent);
}

.quick-nav {
  position: fixed;
  top: 68px;
  right: 14px;
  z-index: 30;
  display: flex;
  gap: 8px;
  flex-direction: column;
  width: min(78vw, 280px);
  padding: 12px;
  background: rgb(253 250 244 / 88%);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: 12px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition:
    opacity 180ms ease,
    transform 180ms ease,
    visibility 180ms ease;
}

.quick-nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.quick-nav a {
  flex: 1 1 auto;
  color: var(--buttonletter);
  text-decoration: none;
  font-size: 0.9rem;
  background: var(--accent);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.5rem 0.9rem;
  text-align: center;
}

.quick-nav a.entry{
	background:var(--entrybtnbg);
	color:var(--accent);
	font-weight: bold;
}

#logoimg {
	position: absolute;
	bottom:5%;
	left:2%;
	width:96%;
	max-width: 680px;
	margin:0 auto;
}

#logoimg img{
	width: 100%;
}

.hero {
	position: relative;
	width: 100%;
	max-width: 1280px;
  margin: -100px auto 0;
  overflow: hidden;
}

[data-parallax] {
  transform: translateY(var(--parallax-y, 0));
  will-change: transform;
}

.hero-image {
  border-radius: 0px;
  background-size: cover;
  background-position: center;
  box-shadow: 0 12px 26px rgb(30 31 32 / 12%);
}

.hero-mobile {
  aspect-ratio:780/960;
  background-image:url("../img/keyVisual-mobile.png")
}

.hero-desktop {
  display: none;
  aspect-ratio:1280/800;
  margin:0 auto;
  max-width:1280px;
  background-image:url("../img/keyVisual-desktop.png")
}

.content {
  padding: 28px 0 52px;
}

.section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 56px;
  min-height: calc(60vh - var(--nav-offset));
  min-height: calc(60svh - var(--nav-offset));
  scroll-margin-top: 90px;
}

h2 {
  margin: 0 0 14px;
  font-size: 1.6rem;
	color:var(--accent);
}

h3 {
  margin: 18px 0 10px;
  font-size: 1.2rem;
}

p {
  margin: 0 0 10px;
  line-height: 1.8;
}

.info-list {
  margin: 0;
}

.info-list div {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.info-list div:last-child {
  border-bottom: 0;
}

.info-list dt {
  font-weight: 700;
}

.info-list dd {
  margin: 0;
  color: var(--muted);
}

.plain-list {
  margin: 0;
  padding-left: 1.2rem;
  line-height: 1.75;
}

.detail-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: #fff;
}

.detail-table th,
.detail-table td {
  border-bottom: 1px solid var(--line);
  padding: 0.8rem 0.75rem;
  vertical-align: top;
  line-height: 1.7;
}

.detail-table tr:last-child th,
.detail-table tr:last-child td {
  border-bottom: 0;
}

.detail-table th {
  width: 36%;
  background: var(--accent-soft);
  text-align: left;
  font-weight: 700;
}

.detail-table td {
  background: #fffdfb;
}

.site-footer {
  padding: 18px 0 34px;
  border-top: 1px solid var(--line);
  background-color: var(--accent-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 200px);
  justify-content: center;
  gap: 8px;
}

.banner {
  width: 200px;
  border: none;
  display: grid;
  place-items: center;
  font-size: 0.9rem;
  font-weight: 700;
  overflow: hidden;
}

.pop-in {
  opacity: 1;
  transform: none;
  transition: none;
}

.pop-in.is-visible {
  opacity: 1;
  transform: none;
}


#overview,#fair,#plan,#venue,#column {
	display: flex;
	min-width: 0;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}

#planWrap{
	background-image: url( "../img/img_birdview.jpg");
	background-size: contain;
	background-position: center;
	background-repeat: no-repeat;
	position: relative;
}

#plan{
	background-color:rgba(255,255,255,0.7);
}

#planWrap:before{
	position: absolute;
	content:" ";
	width: 100%;
	height:100%;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}

.pictbox {
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap:20px;
}

.pictbox img{
	width: 100%;
}

iframe{
	width:90%;
	margin:20px auto;
	aspect-ratio:4/3;
}
  .quick-nav-inner {
    width: min(100%, 780px);
    margin-inline: auto;
    padding-inline: 16px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
  }


.xpostbtn {
	position: absolute;
	right:3%;
	top:14%;
	width:60px;
	height:60px;
	overflow: hidden;
}



@media (width >= 780px) {
  :root {
    --nav-offset: 78px;
  }

  body {
    padding-top: 62px;
  }

  .nav-toggle {
    display: none;
  }

  .site-header {
    padding-top: 30px;
  }
  .quick-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    transform: none;
    z-index: 30;
    width: 100%;
    display: block;
    overflow-x: auto;
    padding: 10px 0;
    border-radius: 0;
    border-top: 0;
    border-left: 0;
    border-right: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: none;
  }

  .quick-nav-inner {
    width: min(100%, 1280px);
    flex-direction: row;
    gap: 10px;
  }
	
	.hero{
		width: 100%!important;
		margin-top:-90px;
	}
	
	#logoimg{
		width:96%!important;
	}
	
	
	#logoimg img{
		width:100%;
	}
  .hero-mobile {
    display: none;
  }

  .hero-desktop {
    display: block;
  }

  .section {
    padding: 22px 24px;
    margin-bottom: 84px;
    scroll-margin-top: 60px;
  }

  .footer-grid {
    grid-template-columns: repeat(4, 200px);
    justify-content: center;
  }
	
	.pictbox{
		flex-direction: row;
		width:100%;
		max-width:1280px;
	}
	.pictbox img{
		max-width: 480px;
	}
	iframe{
		aspect-ratio:16/9;
	}
.innerColumn {
	max-width: 860px;
	margin:0 auto 60px;
	
	
	
}

.xpostbtn {
	position: absolute;
	right:3%;
	bottom:10%;
	width:60px;
	height:60px;
	overflow: hidden;
}
}




.bnrcontainer {
	margin:40px auto;
	display: flex;
	justify-content: center;
	flex-direction: column;
	align-items: center;
}