/* セクション全体コンテナ */
  .support-line {
    position: relative;
    width: 90%;
    max-width: 800px;
    margin: 120px  auto 0px;
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    padding: 50px 60px;
    border: 1px solid #707070;
    box-sizing: border-box;
  }
  .support-line * {
    box-sizing: border-box;
  }

  /* RECOMMENDED バッジ */
  .support-line__badge {
    position: absolute;
    top: 0;
    right: 0;
    background-color: #000000;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.15em;
    padding: 10px 24px;
    border-bottom-left-radius: 8px;
    text-transform: uppercase;
    font-family: "Renner*", a-otf-gothic-bbb-pr6n, sans-serif;
  }

  /* ヘッダーブロック */
  .support-line__header {
    text-align: center;
    margin-top: 15px;
    margin-bottom: 40px;
  }
  .support-line__ttl {
    font-size: 20px;
    font-weight: 700;
    color: #111827;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    line-height: 1.4;
    font-family: "游ゴシック体", YuGothic, "游ゴシック Medium", "Yu Gothic Medium", "游ゴシック", "Yu Gothic", sans-serif;
  }
  .support-line__txt {
    font-size: 14px;
    color: #333;
    line-height: 1.7;
  }

  /* 3ステップグリッド */
  .support-line__steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 32px;
  }
  .support-line__step-box {
    background: #f5f5f5;
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
  }
  .support-line__step-num {
    background-color: #000000;
    color: #ffffff;
    font-size: 12px;
    font-weight: 500;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    margin-top: 2px;
    font-family: "Renner*", a-otf-gothic-bbb-pr6n, sans-serif;
  }
  .support-line__step-subttl {
    font-size: 14px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 6px;
    line-height: 1.3;
  }
  .support-line__step-txt {
    font-size: 12px;
    color: #333;
    line-height: 1.5;
  }

  /* アクションエリア（緑ボタン ＆ QRコードのラップ枠） */
  .support-line__action-flex {
    background: #f5f5f5;
    padding: 32px 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 38px;
    margin-bottom: 32px;
  }

  /* 左側：ボタン配置エリア */
  .support-line__btn-wrap {
    flex: 1;
    max-width: 440px;
    text-align: center;
  }
  .support-line__link-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #06C755;
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    width: 100%;
    padding: 16px;
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    gap: 12px;
    transition: background-color 0.2s ease;
  }
  .support-line__link-btn:hover {
    background-color: #05b34c;
  }
  .support-line__icon-svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
  }
  .support-line__btn-attention {
    font-size: 10px;
    color: #666;
    margin-top: 12px;
  }

  /* 中央の境界線 */
  .support-line__divider {
    width: 1px;
    height: 96px;
    background-color: #707070;
  }

  /* 右側：QRコード配置エリア */
  .support-line__qr-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
  }
  .support-line__qr-imgbox {
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 12px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  }
  .support-line__qr-imgbox img {
    width: 100px;
    height: 100px;
    display: block;
  }
  .support-line__qr-txt {
    font-size: 11px;
    color: #333;
    font-weight: 500;
    margin-top: 12px;
  }

  /* 下部補足テキスト */
  .support-line__notice {
    font-size: 11px;
    color: #666;
    line-height: 1.6;
    border-top: 1px solid #707070;
    padding-top: 24px;
  }
  .support-line__notice p {
    margin-bottom: 6px;
  }
  .support-line__notice p:last-child {
    margin-bottom: 0;
  }

  /* 既存ページのレスポンシブブレイクポイント（768px）に同期 */
  @media (max-width: 768px) {
    .support-line {
      padding: 40px 20px 24px 20px;
      margin: 20px 15px;
    }
    .support-line__ttl {
      font-size: 18px;
    }
    .support-line__txt {
      font-size: 12px;
      text-align: left;
    }
    .support-line__br-pc {
      display: none;
    }
    .support-line__steps {
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .support-line__action-flex {
      flex-direction: column;
      padding: 24px 16px;
      gap: 32px;
    }
    .support-line__divider {
      display: none;
    }
    .support-line__link-btn {
      font-size: 13px;
      padding: 14px 12px;
    }
  }