body {
  font-family: "Lato", "Roboto", "Meiryo", sans-serif;
  color: rgba(0, 0, 0, 0.8);
  font-size: 1rem;
}

.header-container {
  padding-top: env(safe-area-inset-top);
  background-color: #0097A7;
  color: white;
  margin-bottom: 1rem;
}
.header-container .header {
  min-height: 3rem;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.frame {
  max-width: 50rem;
  margin: auto;
}
.frame .language-select {
  display: flex;
  padding-bottom: 0.5rem;
}
.frame .language-select a {
  margin-right: 1rem;
  color: #0097A7;
  font-size: 0.9rem;
  text-decoration: underline;
}
@media screen and (max-width: 899px) {
  .frame .main {
    padding: 1rem;
  }
}
@media screen and (min-width: 900px) {
  .frame .main {
    border: solid 1px rgba(0, 0, 0, 0.2);
    padding: 1.8rem;
  }
}
.frame .main h1 {
  font-size: 1.6rem;
}
.frame .main h2 {
  position: relative;
  font-size: 1.6rem;
  padding: 0.5rem 0.8rem;
  border-radius: 5px;
  background-color: #0097A7;
  color: white;
}
.frame .main .block {
  margin-bottom: 4rem;
}
.frame .main .block > div {
  line-height: 1.7;
  padding: 1.8rem 0;
}
.frame .main a {
  color: #0097A7;
}
.frame .main .block > ul {
  list-style: decimal;
  padding: 1em 0 1em 1.5em;
}
.frame .main .block > ul > li {
  line-height: 2;
}
.frame .main .block > ul > li:not(:last-child) {
  margin-bottom: 1em;
}
.frame .main ul {
  padding: 1em 0 1em 2em;
  list-style: disc;
}
.frame .main ul li {
  line-height: 2;
}

.footer-container {
  padding-bottom: env(safe-area-inset-bottom);
  background-color: #0097A7;
  color: white;
}
.footer-container .footer {
  margin-top: 1rem;
  min-height: 2rem;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}