.up-d_banner-list {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 20px;
  margin-bottom: 40px;
}

.up-d_banner-item {
  display: flex;
  flex: 1 1 0;
  max-width: 580px;
  min-width: 0;
}

.up-d_banner-item > a {
  display: block;
  width: 100%;
}

#up-d_steam-banner {
  position: relative;
}

#up-d_steam-banner > a {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 18px 20px;
  overflow: hidden;
  border: 3px solid #00a6b4;
  border-radius: 8px;
  background:
    radial-gradient(circle at 14% 20%, rgba(255, 218, 74, 0.35) 0 18%, transparent 19%),
    linear-gradient(135deg, #e8fbff 0%, #fff9d7 52%, #f2fbdf 100%);
  box-shadow: 0 6px 0 rgba(0, 126, 136, 0.18);
  color: #083f52;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
  box-sizing: border-box;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}

#up-d_steam-banner > a::after {
  position: absolute;
  right: 14px;
  bottom: 10px;
  width: 52px;
  height: 52px;
  border: 2px solid rgba(0, 166, 180, 0.22);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent 47%, rgba(0, 166, 180, 0.22) 48% 52%, transparent 53%),
    linear-gradient(0deg, transparent 47%, rgba(0, 166, 180, 0.22) 48% 52%, transparent 53%);
  content: "";
}

.up-d_steam-banner-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  padding: 4px 12px;
  border-radius: 999px;
  background: #00a6b4;
  color: #ffffff;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
}

.up-d_steam-banner-copy {
  position: relative;
  z-index: 1;
  color: #083f52;
  font-size: 22px;
  font-weight: 900;
  line-height: 1.35;
}

#up-d_steam-banner > a:hover,
#up-d_steam-banner > a:focus-visible {
  border-color: #ffb600;
  box-shadow: 0 8px 0 rgba(0, 126, 136, 0.16);
  transform: translateY(-2px);
}

#up-d_steam-banner > a:focus-visible {
  outline: 3px solid #006b78;
  outline-offset: 4px;
}

@media (max-width: 750px), (max-device-width: 750px) {
  .up-d_banner-list {
    gap: 10px;
  }

  #up-d_steam-banner > a {
    padding: 4px 6px;
    border-width: 2px;
  }

  #up-d_steam-banner > a::after {
    right: 6px;
    bottom: 5px;
    width: 32px;
    height: 32px;
  }

  .up-d_steam-banner-label {
    margin-bottom: 0;
    padding: 1px 6px;
    font-size: 9px;
    line-height: 1.05;
  }

  .up-d_steam-banner-copy {
    font-size: 10px;
    line-height: 1.05;
  }
}