form {
  max-width: 800px;
  margin: auto;
}

.form_item:not(:first-child) {
  margin-top: 24px;
}

/* head_box */

.form_item .head_box {
  display: flex;
  align-items: center;
}

.form_item .element_box {
  padding-top: 4px;
}

/* 必須 */
.form_item .head_box p.must {
  padding: 6px 10px;
  margin-left: 15px;
  white-space: nowrap;
  font-size: calc(12px + 2 * (100vw - 320px) / 1046);
  color: var(--site_color1);
}

/* エラー文 */
.form_item .element_box p.errors {
  color: #dc0000;
  margin-top: 5px;
}

/* element_box */

.element_box {
  border-left: unset;
  border-right: unset;
}

.input_wrap {
  width: 100%;
}
.double_text_input_wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* submitボタン */
.submit_btn {
  min-width: 200px;
  width: 100%;
  padding: 16px;
  background-color: var(--black);
  border: 1px solid var(--black);
  text-align: center;
  display: block;
  margin: auto;
  margin-top: 24px;
  cursor: pointer;
  transition: all 0.5s;
  color: #ffffff;
  font-weight: bold;
  border-radius: 0;
  line-height: 1.5;
}
.submit_btn:hover {
  background-color: var(--white);
  color: var(--black);
  opacity: 1;
}
@media screen and (max-width: 768px) {
  .submit_btn {
    margin-top: 60px;
    padding: 12px;
  }
}

/* テキストボックス用スタイル */
.input_item.text {
  width: 100%;
  padding: 15px;
  background-color: var(--white);
  width: 100%;
  font-size: 16px;
  border: 1px solid var(--black);
}

.input_item.half {
  width: 48%;
}
/* テキストエリア用スタイル */
.input_item.textarea {
  width: 100%;
  padding: 15px;
  background-color: var(--white);
  border: 1px solid var(--black);
  height: 20vw;
  max-height: 270px;
  min-height: 160px;
  resize: none;
  font-size: 16px;
}

.agree_wrap {
  display: flex;
  margin-top: 24px;
  width: fit-content;
}

.form_agree {
  border: 1px solid var(--black);
  background-color: var(--white);
  width: 24px;
  height: 24px;
  margin-right: 16px;
  position: relative;
  cursor: pointer;
}

.form_agree::before {
  opacity: 0;
  visibility: hidden;
  content: "";
  display: block;
  background-image: url(../../../../assets/img/common/icon_check.svg);
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 18px;
  height: 18px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.2s;
}

.form_agree:checked::before {
  opacity: 1;
  visibility: visible;
}

.agree_txt {
  cursor: pointer;
  flex: 1;
  a {
    border-bottom: 1px solid var(--black);
  }
}

/* ====================================================================================================== */
/* レスポンシブ */
/* ====================================================================================================== */
@media screen and (max-width: 1024px) {
  form {
    width: 90%;
    padding-top: 60px;
    padding-bottom: 80px;
  }
}

@media screen and (max-width: 768px) {
  .form_item {
    flex-direction: column;
  }

  .form_item:not(:first-child) {
    margin-top: 30px;
  }

  .form_item .head_box {
    width: 100%;
    border-bottom: unset;
  }

  .form_item:first-child .head_box {
    border-top: unset;
  }

  .form_item:first-child .element_box {
    border-top: unset;
  }

  .element_box {
    width: 100%;
  }

  .input_item.text {
    padding: 12px;
  }
}

@media screen and (max-width: 480px) {
  form {
    width: 100%;
    padding: 40px 0 60px;
  }
  .form_item:not(:first-child) {
    margin-top: 0;
  }
  .form_item .head_box {
    padding-bottom: 0;
  }
  .form_item .element_box {
    padding: 5px 0 15px;
  }
  .submit_btn {
    margin-top: 40px;
  }
}