.unsoune-ad {
  margin: 16px auto 24px;
  max-width: 100%;
  width: 728px;
  min-height: 110px;
  text-align: center;
}
.unsoune-ad-label {
  display: block;
  margin-bottom: 4px;
  color: #596470;
  font-size: 10px;
}
@media (max-width: 767px) {
  .unsoune-ad { width: 320px; min-height: 70px; }
}

.unsoune-fixed-ad {
  position: fixed;
  z-index: 1000;
  right: 0;
  bottom: 0;
  width: 300px;
  height: 250px;
  box-sizing: border-box;
  background: #fff;
  box-shadow: 0 0 16px rgba(0, 0, 0, .18);
  text-align: center;
}
.unsoune-fixed-ad iframe {
  display: block;
  width: 300px;
  height: 250px;
  border: 0;
}
@media (max-width: 340px) {
  .unsoune-fixed-ad {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
  }
}
@media (max-width: 767px) {
  .unsoune-fixed-ad {
    left: 50%;
    right: auto;
    width: 320px;
    height: 50px;
    transform: translateX(-50%);
  }
  .unsoune-fixed-ad iframe {
    width: 320px;
    height: 50px;
  }
}

/* 操作・読書の区切りに置く通常枠。配信前も高さを確保する。 */
.unsoune-inline-ad {
  width: 100%;
  min-height: 134px;
  margin: 40px auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.unsoune-inline-ad .unsoune-ad-label { color: var(--muted); }
.unsoune-inline-ad iframe {
  display: block;
  margin: 0 auto;
  border: 0;
  max-width: 100%;
}
.unsoune-inline-ad.is-too-narrow {
  min-height: 0;
  padding: 0;
  border: 0;
}
.unsoune-inline-ad.is-too-narrow .unsoune-ad-label { display: none; }
@media (max-width: 767px) {
  .unsoune-inline-ad { min-height: 90px; margin: 32px auto; }
}