.slider {
  display: flex;
  width: 1280px;
  margin-top: 30px;
}

.slick-slide a {
  position: relative;
  display: block;
  width: 1200px;
  height: 100%;
  border-radius: 27px;
  text-decoration: none;
  background: #1D1919; /* ← 下地（白） */
  overflow: hidden;
}

.slick-slide img {
  width: 1200px;
  height: auto;
}

.slide_link {
  transition-property: opacity;
  transition-duration: 0.5s;
}

.slide_link:hover {
  opacity: 0.5;
}

.slide-arrow {
  background-color: transparent;
  bottom: 0;
  height: 0;
  margin: auto;
  position: absolute;
  top: 0;
  width: 0;
}

.prev-arrow {
  border-bottom: 20px solid transparent;
  border-left: 0;
  border-right: 15px solid #d70159;
  border-top: 20px solid transparent;
  left: 15px;
}

.next-arrow {
  border-bottom: 20px solid transparent;
  border-left: 15px solid #d70159;
  border-right: 0;
  border-top: 20px solid transparent;
  right: 15px;
}

button {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  outline: none;
  padding: 0;
}