body {
  background: #000;
}
img {
  width: 100%;
  height: 100%;
}
.wrapper {
  position: relative;
  height: 100%;
  width: 100%;
  overflow: hidden;
}
.bp-part {
  position: relative;
}
.part1 {
  height: 100%;
  width: 100%;
}
.part2 {
  height: 200px;
}
.bg {
  width: 100%;
  height: 100%;
}
.bg img {
  object-fit: contain;
  width: 120rem;
  height: 67.5rem;
}
.part1 .logo {
  position: absolute;
  left: 2.875rem;
  top: 2.25rem;
  width: 11.625rem;
  height: 3.5rem;
}
.part1 .site-btn {
  position: absolute;
  right: 2.875rem;
  top: 2.25rem;
  width: 10.9375rem;
  height: 2.3125rem;
}
.part1 .video-btn {
  cursor: pointer;
  position: absolute;
  left: 29rem;
  top: 0;
  bottom: 0;
  margin: auto;
  height: 6rem;
  width: 6rem;
  z-index: 100;
  filter: brightness(1.2);
  opacity: 0.5;
}
.video-btn:hover {
  filter: brightness(1);
}
.part1 .video-btn2 {
  cursor: pointer;
  position: absolute;
  top: 18rem;
  left: 0;
  right: 0;
  margin: auto;
  height: 6rem;
  width: 6rem;
  z-index: 100;
  opacity: 0.5;
  filter: brightness(1.2);
}
.part1 .slogan {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  margin-top: 1rem;
  /* height: 13rem; */
  width: 76.75rem;
}
.part1 .slogan2 {
  width: 101.1875rem;
  height: 17.375rem;
  margin-top: 4rem;
}
.part1 .slogan3 {
  width: 102.625rem;
  height: 18.25rem;
  margin-top: -4rem;
}
.part1 .download-btn1 {
  right: 12.25rem;
  top: 40rem;
  position: absolute;
  width: 57.5625rem;
  height: 21.4375rem;
}
.part1 .download-btn2 {
  position: absolute;
  left: 0;
  right: 0;
  top: 40rem;
  margin: auto;
  width: 57.5625rem;
  height: 21.4375rem;
}
.part1 .download-btn3 {
  margin-top: 11.5rem;
}
.part1 .complete-btn {
  position: absolute;
  left: 1.875rem;
  bottom: 1.25rem;
  width: 11.8125rem;
  height: 8.4375rem;
}

.hide {
  display: none;
}
.pop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 999;
}
.pop-cover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  opacity: 0.8;
}
.pop-content {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: auto;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: translate(-50%, -50%);
  z-index: 4;
  width: auto;
}
.pop-video-content img {
  display: block;
  width: auto;
  height: 80%;
}
.pop-video video {
  width: 62.5rem;
  margin: 0 auto;
}

.transform-control {
  transition: all 0.3s ease 0s;
}
.translateY {
  transform: translateY(-16.25rem);
}

.m_wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  background-color: #000;
}
.m_tips {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  font-size: 2rem;
  color: #fff;
}
@keyframes down {
  0% {
    transform: translateY(-20px);
    opacity: 1;
  }
  50% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(-20px);
    opacity: 1;
  }
}
.fadeInDown {
  animation: down 1s infinite;
}

@keyframes breathe {
  0% {
    transform: scale(1.1);
  }
  50% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.1);
  }
}
.breathe-btn {
  cursor: pointer;
  object-fit: contain;
  animation: breathe 2s infinite;
}

.pvVideo {
  position: absolute;
  display: none;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 103;
}
.pvVideo iframe {
  position: relative;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}