html {
  font-size: 16px;
}

body {
  padding: 0;
  margin: 0;
}

* {
  box-sizing: border-box;
}

body {
  background: #F39800;
  color: #fff;
}

h1,
h2 i,
h2 small,
nav {
  font-family: 'Tangerine', cursive;
}

h2 b,
article {
  font-family: 'New Tegomin', serif;
}

h3,
aside {
  font-family: "YuGothic", "Yu Gothic", "游ゴシック体", sans-serif;
}

a {
  color: #fff;
  text-decoration: none;
}

.aki {
  background: linear-gradient(0deg, #3A5800, #F39800);
}

h1,
article::before {
  background: linear-gradient(90deg, #3A5800, #F39800);
}

h2,
.solo {
  background: linear-gradient(0deg, #F39800, #3A5800);
}

h3 *,
::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, #F39800, #3A5800);
}

h1,
h3 *,
article::before {
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h1 {
  font-size: 333%;
}

h2,
h2 i {
  font-size: 222%;
}

nav {
  font-size: 200%;
}

article::before {
  font-size: 150%;
}

h3,
a {
  font-size: 125%;
}

h4,
article section {
  font-size: 90%;
}

h1,
h3,
h4 {
  text-align: center;
}

h2,
nav,
article section {
  float: left;
}

h3,
h4 {
  float: right;
}

h2 {
  padding: 2.5rem;
  margin: 2.5vw 5vw;
  line-height: 175%;
}

h2 small {
  display: inline-block;
  transform: scale(0.75);
}

h3 {
  background: #fff;
  border-radius: 50%;
  color: #111;
  padding: 2rem;
  margin: 2.5vw 5vw;
  width: 12.5rem;
  height: 12.5rem;
}

h3 small {
  display: inline-block;
  padding: 0.9rem 0;
}

h4 {
  padding: 1rem 1.75rem;
  margin: 1.5vw;
  border-radius: 5rem;
}

nav {
  border-bottom: 22.5rem solid #3A5800;
  border-left: 4.5rem solid transparent;
  border-right: 4.5rem solid transparent;
  padding: 0;
  margin: 5vw 5vw 2.5rem;
  height: 0;
  max-width: 550px;
}

nav p {
  padding: 0;
  margin: 1.5rem 1rem;
}

aside {
  padding: 0;
  margin: 2rem 0.5rem 0.5rem;
}

article {
  break-before: page;
  display: flex;
  padding: 4rem 0 0;
  position: relative;
  width: 100%;
}

aside p,
article p {
  padding: 0;
  margin: 1rem;
}

article::before {
  content: "ギャラクシー・エクスプレス 555 日本ツアー 2018年・秋";
  box-sizing: border-box;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  padding: 1rem 0.5rem;
  width: 100%;
}

article section {
  border-radius: 2rem;
  padding: 0;
  margin: 0.25rem;
  width: calc(50% - 0.5rem);
  max-width: 25rem;
  height: 12.5rem;
}

article::-webkit-scrollbar {
  width: 2rem;
  height: 2rem;
}

article::-webkit-scrollbar-track {
  background-color: transparent;
}

article::-webkit-scrollbar-thumb {
  border-radius: 2rem;
}


@media (orientation: landscape) {
  article {
    overflow-x: auto;
    scroll-snap-type: x proximity;
  }

  article section {
    flex: 0 0 auto;
    scroll-snap-align: start;
    list-style-position: inside;
  }
}


@media (orientation: portrait) {
  html {
    font-size: 2.5vw;
  }

  nav {
    width: calc(100% - 10vw);
    max-width: calc(100% - 10vw);
    border-bottom: 22.5rem solid #3A5800;
  }

  article {
    flex-flow: wrap;
    padding: 4rem 0.5rem 0.5rem;
  }

  article::before {
    text-align: center;
  }

  article section {
    height: 14.5rem;
  }
}