@media screen and (min-width: 481px) {
  .quality {
    padding: 0 20px;
  }
}
.quality_head {
  width: 100%;
  max-width: 1134px;
  margin-top: 30px;
}
@media screen and (min-width: 769px) {
  .quality_head {
    padding: 0 20px;
    margin: 50px 50px 0 auto;
  }
}
.quality_in {
  padding: 20px 0;
  margin-top: 80px;
}
@media screen and (min-width: 481px) {
  .quality_in {
    padding: 20px;
  }
}
@media screen and (min-width: 769px) {
  .quality_in {
    max-width: 1400px;
    margin: 80px auto 0;
  }
}

.slide_outer {
  max-width: 960px;
  margin: 0 auto;
}
.slide_container {
  width: 100%;
  background: rgba(0, 0, 0, 0.5);
  aspect-ratio: 16/18;
}
@media screen and (min-width: 481px) {
  .slide_container {
    aspect-ratio: 16/16;
  }
}
@media (min-width: 760px) {
  .slide_container {
    aspect-ratio: 18/13;
  }
}
.slide_in {
  display: flex;
  justify-content: space-between;
  padding: 20px 0;
  position: absolute;
  top: 0;
  left: 20px;
  width: calc(100% - 40px);
  opacity: 0;
  transition: opacity 0.5s;
}
.slide_in.show {
  opacity: 1;
}
@media screen and (min-width: 481px) {
  .slide_in {
    left: 30px;
    width: calc(100% - 60px);
  }
}
.slide_item {
  width: calc(50% - 5px);
}
.slide_item_head {
  font-size: 18px;
  margin-top: 10px;
}
.slide_item_text {
  margin-top: 10px;
  font-size: 12px;
}
@media screen and (min-width: 481px) {
  .slide_item {
    width: calc(50% - 10px);
  }
  .slide_item_head {
    font-size: 24px;
    margin-top: 20px;
  }
  .slide_item_text {
    font-size: 14px;
    margin-top: 20px;
  }
}
.slide_img_num {
  position: absolute;
  bottom: -4px;
  right: -4px;
  display: grid;
  place-items: center;
  width: 30px;
  aspect-ratio: 1/1;
  font-size: 12px;
  line-height: 1;
  border: 2px solid #000;
  background: #FFF;
  color: #000;
}
@media screen and (min-width: 481px) {
  .slide_img_num {
    width: 60px;
    right: -8px;
    bottom: -8px;
    font-size: 24px;
  }
}
.slide_bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}
.slide_bottom::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: rgba(0, 0, 0, 0.5);
}
.slide_bottom_bg {
  width: 60%;
  z-index: -1;
}
.slide_bottom_nav {
  display: flex;
  justify-content: space-between;
  width: calc(40% - 20px);
}
.slide_bottom_btn {
  width: calc(50% - 1px);
  aspect-ratio: 1/1;
  display: grid;
  place-items: center;
  background: #505050;
}
.slide_bottom_btn::after {
  content: "";
  display: bliock;
  width: 12px;
  height: 12px;
  border-top: 1px solid #FFF;
  border-right: 1px solid #FFF;
}
.slide_bottom_btn_prev::after {
  transform: rotate(-135deg);
}
.slide_bottom_btn_next::after {
  transform: rotate(45deg);
}
@media screen and (min-width: 481px) {
  .slide_bottom {
    padding: 0 30px;
  }
  .slide_bottom_btn::after {
    width: 20px;
    height: 20px;
  }
}

.pcprev {
  display: none;
}
@media screen and (min-width: 769px) {
  .pcprev {
    display: block;
    position: absolute;
    background: #888;
    top: 20px;
    right: calc(100% + 20px);
    width: calc(50% - 40px);
  }
  .pcprev::after {
    content: "";
    width: calc(100% + 8px);
    height: calc(100% + 8px);
    position: absolute;
    top: 0;
    left: 0;
    background: linear-gradient(-90deg, rgba(40, 40, 40, 0.7) 0%, #282828 20%);
  }
  .pcprev .num {
    position: absolute;
    display: grid;
    place-items: center;
    aspect-ratio: 1/1;
    line-height: 1;
    border: 2px solid #000;
    background: #FFF;
    color: #000;
    width: 60px;
    right: -8px;
    bottom: -8px;
    font-size: 24px;
  }
}

.pcnext {
  display: none;
}
@media screen and (min-width: 769px) {
  .pcnext {
    display: block;
    position: absolute;
    background: #888;
    top: 20px;
    left: calc(100% + 20px);
    width: calc(50% - 40px);
  }
  .pcnext::after {
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: linear-gradient(90deg, rgba(40, 40, 40, 0.7) 0%, #282828 20%);
  }
}

.assurance {
  max-width: 960px;
  margin: 100px auto 0;
}