body {
  background: #0f1112;
}
.banner_m {
  /* background: url("../image/case/case_banner.png"); */
  width: 100%;
  height: 750px;
  background: center center no-repeat;
  background-size: cover;
}
.banner_m video {
  object-fit: cover;
}
.case_choose {
  padding: 50px 0;
  background: #0f1112;
}
.case_choose div {
  width: 150px;
  height: 50px;
  line-height: 50px;
  text-align: center;
  font-size: 24px;
  font-weight: 400;
  color: #ffffff;
  opacity: 0.5;
  cursor: pointer;
  border-radius: 25px;
  transition: all 0.5s;
}
.case_choose div:hover {
  background: #af100c;
  opacity: 1;
}
.case_choose .active {
  background: #af100c;
  border-radius: 25px;
  opacity: 1;
}
.case_content {
  width: 100%;
  flex-wrap: wrap;
}
.case_content .case_s {
  width: 50%;
  overflow: hidden;
  cursor: pointer;
}
.case_content .case_s img {
  width: 100%;
  display: block;
  position: absolute;
  top: 80px;
  opacity: 0;
}
.case_content .case_s .pos_abs {
  display: flex;
  align-items: center;
  justify-content: center;
}
.case_content .case_s .pos_abs img {
  width: unset;
  animation: unset;
  top: unset !important;
}
.running img {
  animation: img_enter 0.6s forwards;
}
@keyframes img_enter {
  0% {
    top: 80px;
    opacity: 0;
  }
  100% {
    top: 0;
    opacity: 1;
  }
}
@keyframes img_hover {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.1);
  }
}
@keyframes img_leave {
  0% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}
.case_s .pos_abs {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.4);
}

.img_src {
  width: 70%;
}
.img_boxes0 .img_src {
  width: 40%;
}
.img_boxes {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 15;
}
.img_name {
  bottom: 50px;
  color: #ffffff;
  font-size: 20px;
  margin-top: 20px;
}
.button_p {
  position: absolute;
  color: #ffffff;
  opacity: 1;
  font-size: 80px;
  font-family: fangsong;
  font-weight: 500;
  cursor: pointer;
}
.next {
  right: 10%;
}
.prev {
  left: 10%;
}
.close_cover {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0;
  z-index: -1;
}
.return {
  position: absolute;
  top: 50px;
  left: calc(50% - 48px);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.return p {
  font-size: 12px;
  font-weight: 400;
  margin-top: 20px;
  color: #ffffff;
  opacity: 0.5;
}
@media screen and (max-width: 1024px) {
  .banner_m {
    /* background: url("../img/mobile/case.png"); */
    width: 100%;
    height: 350px;
    background-size: cover;
  }
  .case_choose {
    width: 100%;
    flex-wrap: wrap;
    padding: 22px 0;
  }
  .case_choose div {
    width: 80px;
    height: 30px;
    line-height: 30px;
    font-size: 12px;
  }
  .case_choose .active {
    background: linear-gradient(90deg, #af100c 0%, #ff1e18 100%);
    color: #fff;
  }
  .case_choose div:hover {
    background: linear-gradient(90deg, #af100c 0%, #ff1e18 100%);
    color: #fff;
  }
  iframe {
    display: none;
  }
  .case_content .case_s {
    width: 100%;
  }
  .next,
  .prev,
  .close_img {
    display: none;
  }
  .case_content .case_s .pos_abs img {
    width: 48px;
    height: 48px;
  }
  .case_choose1 {
    display: none;
  }
  .img_src {
    width: 100%;
  }
  .img_boxes2 video {
    width: 100%;
  }
  .return {
    display: flex;
  }
}