/* 全画面ポップアップバナーのスタイル */
  .popup-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.6s, opacity 0s 0.6s;
  }

  .popup-banner.is-active {
    visibility: visible;
    opacity: 1;
    transition: visibility 0s, opacity 0s;
  }

  .popup-banner__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.6s ease-out;
  }

  .popup-banner.is-active .popup-banner__overlay {
    opacity: 1;
  }

  .popup-banner__inner {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .popup-banner.is-active .popup-banner__inner {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  .popup-banner__content {
    position: relative;
    max-width: 100%;
    max-height: 100%;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  }

  .popup-banner__content img {
    display: block;
    max-width: 100%;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
  }

  .popup-banner__content a {
    display: block;
    transition: opacity 0.25s ease-out, transform 0.25s ease-out;
    will-change: opacity, transform;
  }

  .popup-banner__content a:hover {
    opacity: 0.9;
    transform: scale(1.02);
  }

  .popup-banner__content a:hover img {
    opacity: 0.9;
  }

  .popup-banner__close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.25s ease-out, transform 0.25s ease-out;
    will-change: background-color, transform;
    z-index: 10001;
  }

  .popup-banner__close:hover {
    background-color: rgba(255, 255, 255, 1);
    transform: scale(1.1);
  }

  .popup-banner__close-icon {
    font-size: 28px;
    line-height: 1;
    color: #333;
    font-weight: bold;
  }

  /* スマートフォン対応 */
  @media screen and (max-width: 767px) {
    .popup-banner__inner {
      max-width: 95%;
      max-height: 95%;
    }

    .popup-banner__close {
      top: -35px;
      width: 35px;
      height: 35px;
    }

    .popup-banner__close-icon {
      font-size: 24px;
    }

    .popup-banner__content img {
      max-height: 85vh;
    }
  }