:root {
  color-scheme: light;
  --page-bg: #f6fbfa;
  --frame: #dfeceb;
  --teal: #0b8179;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--page-bg);
}

body {
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;
}

.home-page {
  width: min(100%, 1024px);
  margin: 0 auto;
  background: #fff;
  border-right: 1px solid var(--frame);
  border-left: 1px solid var(--frame);
  box-shadow: 0 18px 45px rgba(28, 49, 58, 0.08);
}

.lp-full {
  position: relative;
}

.lp-full img,
.page-preview img {
  display: block;
  width: 100%;
  height: auto;
}

.hotspot {
  position: absolute;
  display: block;
  border-radius: 8px;
}

.hotspot:focus-visible {
  outline: 3px solid #ff9a1f;
  outline-offset: 2px;
}

.nav-theater {
  left: 37.2%;
  top: 1.5%;
  width: 7.8%;
  height: 2.3%;
}

.nav-museum {
  left: 46.5%;
  top: 1.5%;
  width: 8.2%;
  height: 2.3%;
}

.nav-gallery {
  left: 56.2%;
  top: 1.5%;
  width: 8.5%;
  height: 2.3%;
}

.nav-forum {
  left: 66.7%;
  top: 1.5%;
  width: 7.2%;
  height: 2.3%;
}

.guide-theater {
  left: 3.4%;
  top: 23.9%;
  width: 21%;
  height: 16.4%;
}

.guide-museum {
  left: 25.8%;
  top: 23.9%;
  width: 22.3%;
  height: 16.4%;
}

.guide-gallery {
  left: 49.8%;
  top: 23.9%;
  width: 22.3%;
  height: 16.4%;
}

.guide-forum {
  left: 73.8%;
  top: 23.9%;
  width: 22.5%;
  height: 16.4%;
}

.update-gallery {
  left: 3.6%;
  top: 44.3%;
  width: 21.2%;
  height: 11.7%;
}

.update-museum {
  left: 27.4%;
  top: 44.3%;
  width: 20.8%;
  height: 11.7%;
}

.update-theater {
  left: 50.4%;
  top: 44.3%;
  width: 21.6%;
  height: 11.7%;
}

.update-forum {
  left: 74.2%;
  top: 44.3%;
  width: 22%;
  height: 11.7%;
}

.link-theater {
  left: 2.4%;
  top: 57.9%;
  width: 22.4%;
  height: 26.3%;
}

.link-museum {
  left: 26.4%;
  top: 57.9%;
  width: 22.6%;
  height: 26.3%;
}

.link-gallery {
  left: 50.8%;
  top: 57.9%;
  width: 22.4%;
  height: 26.3%;
}

.link-forum {
  left: 75%;
  top: 57.9%;
  width: 22.4%;
  height: 26.3%;
}

.page-preview {
  padding: 34px 24px 0;
  scroll-margin-top: 24px;
}

.single-page {
  padding-bottom: 34px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--frame);
}

.page-header a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid var(--frame);
  border-radius: 999px;
  color: var(--teal);
  font-weight: 700;
  text-decoration: none;
}

.page-title {
  margin: 0;
  color: var(--teal);
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.35;
}

.page-preview h2 {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.35;
}

.page-preview > img,
.tab-preview-grid figure {
  border: 1px solid var(--frame);
  border-radius: 8px;
  box-shadow: 0 18px 45px rgba(28, 49, 58, 0.08);
}

.forum-detail {
  padding-bottom: 34px;
}

.tab-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.tab-preview-grid figure {
  margin: 0;
  padding: 16px;
  background: #fff;
}

.tab-preview-grid figcaption {
  margin-bottom: 10px;
  color: var(--teal);
  font-weight: 700;
}

@media (max-width: 1024px) {
  .home-page {
    border: 0;
    box-shadow: none;
  }
}

@media (max-width: 640px) {
  .page-preview {
    padding: 22px 10px 0;
  }

  .forum-detail {
    padding-bottom: 22px;
  }

  .tab-preview-grid {
    grid-template-columns: 1fr;
  }
}