select {
  padding: 0.375rem 2.25rem 0.375rem 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
  color: #212529;
  -webkit-appearance: none;
          appearance: none;
  background-color: #fff;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 12px;
}
select:focus {
  border-color: #86b7fe;
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

html {
  font-size: 100%;
}

body {
  font-size: 16px;
  font-family: sans-serif;
  -webkit-text-size-adjust: 100%;
     -moz-text-size-adjust: 100%;
          text-size-adjust: 100%;
  line-height: 1.75;
}

h1 {
  border-bottom: solid 3px #004d84;
  font-size: 1.5625rem;
  font-weight: 500;
  line-height: 1.5;
}
h1[lang=ja] {
  font-feature-settings: "palt" 1;
}

h2, h3 {
  padding: 0.25em 0.5em;
  background-color: #004d84;
  color: #fff;
  border-radius: 5px;
  font-weight: 500;
  line-height: 1.5;
}

h2 {
  font-size: 1.46875rem;
}

h3 {
  font-size: 1.375rem;
}

.en {
  display: inline;
}

.ja, .cn {
  display: none;
}

select {
  font-size: 1rem;
}

.back {
  position: relative;
  display: inline-flex;
  align-items: center;
  top: 0.35rem;
  height: 38px;
  padding-right: 16px;
  box-sizing: border-box;
  border: 2px solid #004d84;
  border-radius: 19px;
  color: #004d84;
  text-decoration: none;
}
.back::before {
  display: inline-flex;
  content: "";
  width: 1rem;
  height: 1rem;
  margin-left: 0.5rem;
  vertical-align: -0.125em;
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' fill='%23004d84' viewBox='0 0 16 16'><path fill-rule='evenodd' d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z' clip-rule='evenodd'/></svg>");
  background-repeat: no-repeat;
  background-size: 1rem 1rem;
}