@charset "UTF-8";
#contents_serial {
  max-width: 1000px;
  margin: auto;
}

.serialcode-disc {
  margin: 30px 0;
}

@media all and (min-width: 769px) {
  .serialcode-disc {
    font-size: 30px;
    margin: 50px 0;
  }
}

.serialcode-list {
  padding: 0 20px;
  max-width: 900px;
  margin: auto;
}

.serialcode-list dt {
  font-weight: bold;
  text-align: center;
  font-size: 20px;
}

@media all and (min-width: 769px) {
  .serialcode-list dt {
    font-size: 30px;
  }
}

.serialcode-list dd {
  margin-top: .5em;
  margin-bottom: 1em;
}

.serialcode-list input {
  width: 100%;
  padding: .5em;
  border: 1px solid rgba(0, 0, 0, 0.2);
  font-size: 20px;
}

@media all and (min-width: 769px) {
  .serialcode-list input {
    font-size: 28px;
  }
}

.serialcode-form button {
  display: block;
  width: 60%;
  margin: 0 auto 40px;
  padding: 0;
  border: none;
}

@media all and (min-width: 769px) {
  .serialcode-form button {
    margin-bottom: 60px;
  }
}