html,
body {
  margin: 0;
  padding: 0;
}
h1,p {
  margin: 0;
  padding: 0;
}
html {
  font-size: 100%;
}
body {
  margin-inline: auto;
  font-size: 1rem;
}
img,
svg {
  display: block;
  height: auto;
  max-width: 100%;
}
.en {
  font-family: "Roboto", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
.zh {
  font-family: "Noto Sans SC", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
/* 言語選択 */
.lang-select {
  background: url('../img/lang/bg-sp.webp') no-repeat top center / cover;
  min-height: 100vh;
  margin-inline: auto;
  width: 100%;
  padding-top: 14vh;
  text-align: center;
  color: #333333;
}
.lang-select__inner {
  padding-inline: 20px;
}
.lang-select__title-item {
  display: block;
  font-size: 1.75rem;
  line-height: 1.45;
  letter-spacing: 0.04em;
}
.lang-select__img {
  width: 122px;
  margin-inline: auto;
  margin-block: 20px 14px;
}
.lang-select__text-item {
  display: block;
  font-size: 1.125rem;
  line-height: 1.45;
  letter-spacing: 0.04em;
}
.lang-select__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 28px;
}
.lang-select__item {
  display: block;
  color: #ffffff;
  background: #3E75EC;
  font-size: 1.25rem;
  width: 100%;
  border-radius: 8px;
  padding-block: 23px;
  text-decoration: none;
  letter-spacing: 0.04em;
}
@media (min-width: 768px) {
  .lang-select {
    background: url('../img/lang/bg-pc.webp') no-repeat top center / cover;
  }
  .lang-select__inner {
    max-width: 750px;
    margin-inline: auto;
  }
  .lang-select__title-item {
    font-size: 2.3125rem;
  }
  .lang-select__img {
    margin-block: 38px 24px;
  }
  .lang-select__nav {
    flex-wrap:  nowrap;
    gap: 24px;
    margin-top: 42px;
  }
  .lang-select__text-item {
    font-size: 1.375rem;
  }
  .lang-select__item {
    cursor: pointer;
    transition: .3s ease;
  }
  .lang-select__item:hover {
    opacity: .6;
  }
}