body {
      margin: 0;
      color: #1f1f1f;
      background-color: #ffffff; /* 背景を白に */
    }

    .contact-wrapper {
      max-width: 960px;
      margin: 0 auto;
      padding: 1.5rem 1rem 3rem;
    }

    @media (min-width: 768px) {
      .contact-wrapper {
        padding: 3rem 1.5rem 4rem;
      }
    }

    h1 {
      font-size: 1.8rem;
      margin-bottom: 0.5rem;
    }

    p.lead {
      margin-top: 0;
      margin-bottom: 1.5rem;
      color: #1f1f1f;
      font-size: 1rem;
    }

    /* ========= フォーム全体 ========= */

    form.contact-form {
      background-color: #FFFFFF;
      padding: 0;
      border-radius: 0;
      box-shadow: none;
    }

    .contact-table {
      display: table;
      width: 100%;
      border-collapse: collapse;
      border: 1px solid #b3b3b3; /* 外枠 */
    }

    .form-row {
      display: table-row;
    }

    .form-label-cell,
    .form-field-cell {
      border-bottom: 1px solid #b3b3b3;
    }

    .form-row:last-child .form-label-cell,
    .form-row:last-child .form-field-cell {
      border-bottom: none;
    }

    .form-label-cell {
      display: table-cell;
      width: 28%;
      background-color: #f5faff;
      padding: 12px 18px;
      vertical-align: top;
      font-size: 0.9rem;
      font-weight: 600;
      white-space: nowrap;
    }

    .form-field-cell {
      display: table-cell;
      padding: 12px 18px;
      background-color: #fff;
      font-size: 0.9rem;
    }

    .form-label-cell label {
      display: inline;
      margin: 0;
      font-weight: 600;
    }

    .required {
      color: #d00;
      font-size: 0.8rem;
      margin-left: 0.3rem;
    }

    /* ========= 入力要素 ========= */

    input[type="text"],
    input[type="email"],
    input[type="tel"],
    select,
    textarea {
      width: 95%;
      padding: 0.45rem 0.5rem;
      border: 1px solid #ccc;
      border-radius: 2px;
      font-size: 0.9rem;
      font-family: inherit;
      background-color: #fff;
    }

    input[type="text"]:focus,
    input[type="email"]:focus,
    input[type="tel"]:focus,
    select:focus,
    textarea:focus {
      outline: none;
      border-color: #555;
      box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
    }

    .note10 {
      margin: 0.1rem 0 0;
      font-size: 0.75rem;
      color: #1f1f1f;
      padding-bottom: 5px;
    }

    .field-row {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
    }

    .field-row .field {
      flex: 1 1 140px;
    }

    .field-label-sub {
      display: block;
      font-size: 0.8rem;
      margin: 0.1rem 0 0.15rem;
      color: #1f1f1f;
    }

    textarea {
      min-height: 160px;
      resize: vertical;
    }

    /* ========= 送信ボタン ========= */

    .submit-area {
      margin-top: 1.5rem;
      padding-top: 1.5rem;
      text-align: center;
      background-color: #FFFFFF;
      /* border-top は削除 */
    }

    .btn-submit {
      display: inline-block;
      min-width: 200px;
      padding: 0.65rem 2.5rem;
      border-radius: 999px;
      border: none;
      background: #284e8c;
      color: #fff;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      letter-spacing: 0.08em;
      transition: background 0.18s ease, transform 0.08s ease;
    }

    .btn-submit:hover {
      background: #333;
    }

    .btn-submit:active {
      transform: translateY(1px);
    }

    .small-text {
      font-size: 0.8rem;
      color: #1f1f1f;
      margin-top: 0.5rem;
    }

    /* ========= スマホレイアウト ========= */

    @media (max-width: 767px) {
      .contact-table {
        display: block;
        border-collapse: separate;       /* 外枠を生かす */
        border: 1px solid #b3b3b3;      /* 下罫も含めて維持 */
        width: 100% !important;
      }

      .form-row {
        display: block;
      }

      .form-row:first-child {
        border-top: none;
      }

      .form-label-cell,
      .form-field-cell {
        display: block;
        width: 92.5%;
        border: none;                   /* 内側の罫線は消す */
      }

      .form-label-cell {
        padding: 10px 12px;
        background-color: #FFFFFF;
      }

      .form-field-cell {
        padding: 10px 12px 12px;
      }

      .field-row {
        flex-direction: column;
        gap: 0.5rem;
      }

      .field-row .field {
        flex: 0 0 auto;   /* 高さの自動調整。140pxの最低高さを無効化 */
      }

    }