body {
  font-family: "Meiryo", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  color: #333;
}

main {
  background: url(/shopping/img/genre/water/corporation/lp/bg_water.jpg) top center no-repeat;
  background-size: 100%;
  padding-top: 40px;
  padding-bottom: 40px;
}

#head_area .hd_area {
  height: 125px !important;
}

.form_container {
  max-width: 800px;
  margin-right: auto;
  margin-left: auto;
  padding: 56px 40px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  box-sizing: border-box;
  line-height: 1.2;
}

#select_form {
  margin-bottom: 64px;
}

.question_block {
  margin-bottom: 56px;
}

.tit_question {
  margin-bottom: 16px;
  padding-bottom: 4px;
  border-bottom: 2px solid #eef2f5;
}

.notes_order {
  margin-bottom: 40px;
  color: rgb(230, 0, 18);
}

.tit_question p {
  font-weight: 700;
  font-size: 20px;
  margin: 0;
}

.sub_question p {
  margin-top: 24px;
  font-size: 18px;
  font-weight: 400;
}

#select_form .main_message {
  margin-bottom: 16px;
  color: #005bac;
  font-size: 1.6em;
}

#select_form .sub_message {
  margin-bottom: 4px;
  color: #333;
  font-size: 0.9em;
}

/* 必須ラベル */
.txt_required {
  color: #e60012;
  margin-left: 12px;
  font-size: 0.9rem;
  font-weight: 400;
  vertical-align: middle;
}

/* 入力フォーム（フォーカス時のエフェクト追加） */
main .select_box,
main input[type="text"],
main input[type="email"],
main input[type="tel"],
main textarea {
  width: 64%;
  padding: 8px;
  border: 1px solid #dcdcdc;
  border-radius: 6px;
  box-sizing: border-box;
  font-size: 16px;
  line-height: 1.2;
  transition: border-color 0.3s, background-color 0.3s;
  cursor: pointer;
}

main textarea {
  width: 100%;
}

.select_box:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus {
  border-color: #005bac;
  background-color: #fff;
  outline: none;
}

textarea {
  resize: vertical;
}

.radio_box label,
.checkList label {
  display: inline-flex;
  align-items: center;
  margin-right: 25px;
  margin-bottom: 12px;
  cursor: pointer;
  font-size: 16px;
}

.radio_box input[type="radio"],
.checkList input[type="checkbox"] {
  margin-right: 8px;
  transform: scale(1.3);
  cursor: pointer;
}

.submit_btn {
  display: block;
  width: 100%;
  max-width: 360px;
  margin: 20px auto 20px;
  padding: 20px;
  background: linear-gradient(to bottom, #ff7a00, #e60012);
  color: #fff;
  text-align: center;
  border: none;
  border-radius: 50px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 2px;
  cursor: pointer;
  box-shadow: 0 6px 15px rgba(230, 0, 18, 0.3);
  transition: all 0.3s ease;
}

.submit_btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(230, 0, 18, 0.4);
  opacity: 0.9;
}

/* 送信ボタンの非活性（disabled）スタイル */
.submit_btn:disabled {
  background: #cccccc;
  color: #888888;
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
  opacity: 1;
}

/* バリデーション文言スタイル */
#validation_message {
  text-align: center;
  color: #e60012;
  font-size: 16px;
}

/* バリデーション用：枠線による正否の可視化スタイル */
main .select_box.is-error,
main input[type="text"].is-error,
main input[type="email"].is-error,
main input[type="tel"].is-error,
main textarea.is-error {
  border: 1px solid #e60012;
}

main .select_box.is-success,
main input[type="text"].is-success,
main input[type="email"].is-success,
main input[type="tel"].is-success,
main textarea.is-success {
  border: 1px solid #4caf50;
}

/* スマホ向け調整 */
@media screen and (max-width: 600px) {
  main {
    padding-top: 4vw;
    padding-bottom: 4vw;
  }

  main .select_box,
  main input[type="text"],
  main input[type="email"],
  main input[type="tel"],
  main textarea {
    width: 100%;
    padding: 2vw 2%;
  }

  .form_container {
    margin: 8vw 2%;
    padding: 8vw 4%;
  }

  #select_form {
    margin-bottom: 12vw;
  }

  .question_block {
    margin-bottom: 8vw;
  }

  .tit_question {
    margin-bottom: 2vw;
    padding-bottom: 1vw;
  }

  #select_form .tit_question {
    margin-bottom: 4vw;
  }

  .tit_question p {
    font-size: 18px;
    line-height: 1.2;
  }

  #select_form .tit_question p {
    font-size: 1.4em;
  }

  .txt_required {
    margin-left: 0;
    font-size: 0.8em;
  }

  .radio_box label {
    display: block;
    margin-bottom: 15px;
  }

  .sub_question p {
    margin-top: 6vw;
    font-size: 0.9rem;
  }

  #validation_message {
    margin-top: 8vw;
    font-size: 14px;
  }

  .submit_btn {
    margin-top: 5vw;
    font-size: 18px;
  }
}