body {
        background-color: #000;
        margin: 0;
      }
      #app {
        background-image: url(../img/bg.webp);
        background-repeat: no-repeat;
        background-position: center;
        background-size: cover;
      }
      .kv-image {
        display: block;
        max-width: 738px;
        width: 100%;
        height: auto;
        margin: auto;
        padding-bottom: 1rem;
      }
      .coming-soon {
        max-width: 480px;
        margin: 0 auto;
        padding: 0 1.5rem 3rem;
        text-align: center;
        font-family: 'Noto Serif', serif;
        color: #fff;
      }
      .coming-soon__label {
        margin: 0 0 0.75rem;
        font-size: 2rem;
        font-weight: 700;
        letter-spacing: 0.15em;
        text-transform: uppercase;
        color: #fff;
      }
      .coming-soon__text {
        margin: 0 0 2rem;
        font-size: 0.9375rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.85);
      }
      .coming-soon__btn {
        display: inline-block;
        padding: 0.85rem 3rem;
        border: 1px solid #e5dc91;
        color: #e5dc91;
        font-size: 0.875rem;
        letter-spacing: 0.1em;
        text-decoration: none;
        transition: background-color 0.25s ease, color 0.25s ease;
      }
      .coming-soon__btn:hover {
        background-color: #e5dc91;
        color: #000;
      }
      .sp-only {
        display: none;
      }
      @media (max-width: 767px) {
        .sp-only {
          display: inline;
        }
      }