.btn-disabled {
      background-color: gray;
      cursor: not-allowed;
      color: white;
      opacity: 0.8;
      display: inline-block;
      border-radius: 8px;
      text-align: center;
  }

  .hidden-container {
      display: none;
      visibility: hidden;
  }

  /* 영수증 스타일 */
  .receipt-container {
      max-width: 500px;
      margin: 40px auto;
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
      overflow: hidden;
  }

  .receipt-header {
      background-color: #0b3eb3;
      text-align: center;
      padding: 20px;
      border-bottom: 2px solid #333;
  }

  .receipt-header h2 {
      margin: 0;
      font-size: 24px;
      font-weight: 700;
      letter-spacing: 1px;
      color: #fff;
  }

  .receipt-content {
      padding: 30px;
  }

  .receipt-info {
      background: #f8f9fa;
      border: 1px solid #e9ecef;
      border-radius: 6px;
      padding: 20px;
      margin-bottom: 30px;
  }

  .receipt-info p {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin: 0 0 12px 0;
      padding: 8px 0;
      border-bottom: 1px dotted #dee2e6;
      font-size: 16px;
      line-height: 1.5;
  }

  .receipt-info p:last-child {
      border-bottom: none;
      margin-bottom: 0;
  }

  .receipt-info .label {
      font-weight: 600;
      color: #495057;
      min-width: 120px;
  }

  .receipt-info .value {
      color: #212529;
      font-weight: 500;
      text-align: right;
      flex: 1;
  }

  .receipt-info .value.price {
      color: #dc3545;
      font-weight: 700;
      font-size: 18px;
  }

  .receipt-divider {
      height: 2px;
      background: repeating-linear-gradient(to right,
              #333 0px,
              #333 10px,
              transparent 10px,
              transparent 20px);
      margin: 20px 0;
  }

  .receipt-footer {
      text-align: center;
      padding: 20px 30px 30px;
      background: #f8f9fa;
  }

  .receipt-footer .btn {
      width: 100%;
      height: 50px;
      font-size: 18px;
      font-weight: 600;
      border-radius: 6px;
      letter-spacing: 0.5px;
  }

  .receipt-notice {
      margin-top: 15px;
      font-size: 12px;
      color: #6c757d;
      line-height: 1.4;
  }

  .payment-method {
      margin-top: 20px;
  }

  .agreement {
      margin-top: 10px;
      display: none;
      visibility: hidden;
  }

  /* 반응형 */
  @media screen and (max-width: 767px) {
      .receipt-container {
          margin: 20px;
          max-width: none;
      }

      .receipt-header {
          padding: 15px;
      }

      .receipt-header h2 {
          font-size: 20px;
      }

      .receipt-content {
          padding: 20px;
      }

      .receipt-info {
          padding: 15px;
      }

      .receipt-info p {
          font-size: 14px;
          flex-direction: column;
          align-items: flex-start;
          gap: 4px;
      }

      .receipt-info .label {
          min-width: auto;
      }

      .receipt-info .value {
          text-align: left;
      }

      .receipt-footer {
          padding: 15px 20px 20px;
      }

      .receipt-footer .btn {
          height: 48px;
          font-size: 16px;
      }
  }