.home_banner {
  overflow: hidden;
  position: relative;
  color: white;
  mask-image: linear-gradient(
        to bottom,                    /* 渐变方向：从左到右 */
        transparent,                 /* 最左边：完全透明 */
        black,     /* 从 --mask-width 位置开始：完全不透明（黑色） 不需要变量可以删除*/
        black, /* 直到 --right-mask-width 位置：保持不透明 不需要变量可以删除*/
        transparent                  /* 最右边：完全透明 */
    );
}
.home_banner .banner_bg {
  width: 100%;
}
.home_banner .banner_phone {
  display: none;
}
.home_banner .banner_txt {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
.home_banner .banner_txt > * {
  opacity: 0;
  -webkit-transform: translateY(25px);
      -ms-transform: translateY(25px);
          transform: translateY(25px);
  -webkit-transition: all 1s;
  transition: all 1s;
}
.home_banner .banner_txt > *:nth-child(1) {
  -webkit-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
.home_banner .banner_txt > *:nth-child(2) {
  -webkit-transition-delay: 0.6s;
          transition-delay: 0.6s;
}
.home_banner .banner_txt > *:nth-child(3) {
  -webkit-transition-delay: 0.8s;
          transition-delay: 0.8s;
}
.home_banner .banner_sub {
  color: rgba(255, 255, 255, 0.7);
}
.home_banner video {
  height: 100%;
  width: 100%;
  -o-object-fit: cover;
     object-fit: cover;
  position: absolute;
  z-index: 2;
  max-height: 100%;
  max-width: 100%;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
.home_banner .swiper-slide {
  height: 100vh;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.home_banner .swiper-slide-active .banner_txt > * {
  opacity: 1;
  -webkit-transform: none;
      -ms-transform: none;
          transform: none;
}
.home_banner .play {
  display: none;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  border: 2px solid white;
  width: 40px;
  height: 40px;
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  border-radius: 50%;
}
.home_banner .bannerPoint {
  position: absolute;
  z-index: 2;
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  bottom: 100px;
}

.task {
  display: none;
}

@media screen and (max-width: 768px) {
  .home_banner {
    margin-top: 60px;
  }
  .home_banner .swiper-slide {
    height: auto;
  }
  .home_banner .banner_phone {
    display: block;
  }
  .home_banner .banner_pc {
    display: none;
  }
  .home_banner video {
    display: none;
  }
}