.right-side-banner {
  position: fixed;
  z-index: 1500;
  inset-block-end: 130px;
  inset-inline-end: 20px;

  opacity: 0;
  transform: translateX(20px);
  pointer-events: none;
  transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
  display: none; /* 처음에는 숨김 */
}
/* 나타날 때 클래스 */
.right-side-banner.show {
  display: block; /* 보이도록 설정 */
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}
/* 사라질 때 클래스 */
.right-side-banner.hide {
  opacity: 0;
  transform: translateX(20px);
  pointer-events: none;
}
@keyframes slide-right {
  0% {
    opacity: 0;
    transform: translateX(20px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}
.trailer-banner {
  position: relative;
  overflow: hidden;
  width: 220px;
  height: 300px;
  border-radius: 16px;
  background: url("../assets/img/742a453.webp") 50% / contain no-repeat;
  box-shadow: 0 4px 3.5px 0 rgba(0, 0, 0, 0.5),
    inset 0 0.8px 1px 0 hsla(0, 0%, 75.7%, 0.82);
}
.btn-hide {
  z-index: 1;
  cursor: pointer;
  position: absolute;
  inset-block-start: 14px;
  inset-inline-end: 14px;
  width: 28px;
  height: 28px;
  background: url("../assets/img/a5a9722.webp") 50% / contain no-repeat;
}
.btn-show {
  cursor: pointer;
  display: flex;
  align-items: end;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.trailer-text {
  font-weight: 500;
  font-size: 24px;
  padding: 0 10px 22px;
  color: #fff;
  letter-spacing: -0.015em;
  line-height: 1.3;
  background: radial-gradient(
    circle at center,
    #fff 0,
    #e0e0e0 40%,
    #b0b0b0 70%,
    #888 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  -webkit-text-stroke-width: 0.15px;
  -webkit-text-stroke-color: hsla(0, 0%, 100%, 0.4);
  text-shadow: 0 2px 3.5px rgba(0, 0, 0, 0.2);
}