.contact h3 {
  font-size: 2rem;
  margin: 5rem auto 1rem;
}
.contact table {
  width: 70%;
  margin: 0 auto 0.5rem;
  border: 1px solid #ddd;
  display: table;
  font-size: 1rem;
  text-align: left;
  table-layout: fixed;
}
.contact th {
  width: 30%;
  background-color: #eee;
  font-size: 1rem;
  padding: 0.5rem;
}
.contact td {
  padding: 0.5rem;
}
.contact table p {
  font-size: 1rem;
  white-space: pre-line;
}

/*入力欄*/
.contact input[type="text"],
.contact input[type="email"],
.contact input[type="tel"] {
  border: 1px solid #d8d8d8;
  width: 100%;
  padding: 0.5rem;
}
.contact input[type="radio"] {
  margin-left: 1rem;
}
.contact label {
  font-size: 1.2rem;
  display: inline-block;
}
.contact textarea {
  border: 1px solid #d8d8d8;
  width: 100%;
  max-width: 100%;
}
.contact input[type="submit"] {
  width: 12rem;
  display: inline-block;
  vertical-align: middle;
  margin: 2rem 2rem 0;
  padding: 0.5rem 1rem;
  color: #f15a24;
  font-weight: bold;
  border: 1px solid #f15a24;
  cursor: pointer;
  background-color: white;
  transition-duration: 0.3s;
}
.contact input[type="submit"]:hover {
  color: #fff;
  background-color: #f15a24;
}

/*必須・任意*/
.req {
  font-size: 0.8rem;
  padding: 3px 5px;
  background: #f79034;
  color: #fff;
  border-radius: 3px;
  margin-right: 0.8rem;
}
.unreq {
  font-size: 0.8rem;
  padding: 3px 5px;
  background: #bdbdbd;
  color: #fff;
  border-radius: 3px;
  margin-right: 0.8rem;
}

/* エラー表示 */
.error {
  display: none;
}
input:invalid + .error {
  font-size: 0.9em;
  display: block;
  color: red;
}

/* メディアクエリ */
@media (width < 767px) {
  .contact table {
    width: 100%;
  }
  .contact tr,
  .contact td,
  .contact th {
    display: block;
    width: 100%;
    line-height: 2.5em;
  }
}