.siyuan_video_banner_main {
  position: relative;
  isolation: isolate;
  width: auto;
  max-width: none;
  height: 900px;
  min-height: 900px;
  margin-top: calc((var(--header-height) + var(--header-offset-top) + 1px) * -1);
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  overflow: hidden;
  background: #183028;
  color: #ffffff;
}

.siyuan_video_banner_main .siyuan-video-banner-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.siyuan_video_banner_main .siyuan-video-banner-bg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center center;
}

.siyuan_video_banner_main video.siyuan-video-banner-bg {
  pointer-events: none;
}

.siyuan_video_banner_main .container {
  position: static;
  height: 100%;
  max-width: 1440px;
  padding-left: 0;
  padding-right: 0;
}

.siyuan_video_banner_main .siyuan-video-banner-copy {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  bottom: auto;
  width: min(886px, calc(100vw - 48px));
  color: #ffffff;
  text-align: center;
  transform: translate(-50%, -50%);
}

.siyuan_video_banner_main .siyuan-video-banner-copy-inner {
  width: 100%;
}

.siyuan_video_banner_main .siyuan-video-banner-title {
  margin: 0;
  color: #ffffff;
  font-family: var(--font-family-bold);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0;
}

.siyuan_video_banner_main .siyuan-video-banner-desc,
.siyuan_video_banner_main .siyuan-video-banner-breadcrumb {
  margin: 20px 0 0;
  color: #ffffff;
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 400;
  line-height: 21px;
  letter-spacing: 0;
}

.siyuan_video_banner_main .siyuan-video-banner-breadcrumb-link {
  color: inherit;
  text-decoration: none;
}

.siyuan_video_banner_main .siyuan-video-banner-breadcrumb-link:hover,
.siyuan_video_banner_main .siyuan-video-banner-breadcrumb-link.is-current {
  color: inherit;
}

.siyuan_video_banner_main .siyuan-video-banner-breadcrumb-sep {
  display: inline-block;
  margin: 0 8px;
  color: inherit;
}

@media screen and (min-width: 1600px) {
  .siyuan_video_banner_main .container {
    max-width: 1440px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-copy {
    width: min(886px, 100%);
  }
}

@media screen and (max-width: 1400px) {
  .siyuan_video_banner_main {
    height: 780px;
    min-height: 780px;
  }

  .siyuan_video_banner_main .container {
    padding-left: 40px;
    padding-right: 40px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-copy {
    width: min(886px, calc(100vw - 80px));
  }
}

@media screen and (max-width: 1200px) {
  .siyuan_video_banner_main {
    height: 680px;
    min-height: 680px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-title {
    font-size: 44px;
  }
}

@media screen and (max-width: 992px) {
  .siyuan_video_banner_main {
    height: 560px;
    min-height: 560px;
  }

  .siyuan_video_banner_main .container {
    padding-left: 30px;
    padding-right: 30px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-copy {
    width: min(720px, calc(100vw - 60px));
  }

  .siyuan_video_banner_main .siyuan-video-banner-title {
    font-size: 40px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-desc,
  .siyuan_video_banner_main .siyuan-video-banner-breadcrumb {
    font-size: 16px;
    line-height: 21px;
  }
}

@media screen and (max-width: 768px) {
  .siyuan_video_banner_main {
    height: 460px;
    min-height: 460px;
  }

  .siyuan_video_banner_main .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-copy {
    width: calc(100vw - 40px);
  }

  .siyuan_video_banner_main .siyuan-video-banner-title {
    font-size: 34px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-desc,
  .siyuan_video_banner_main .siyuan-video-banner-breadcrumb {
    margin-top: 16px;
    font-size: 16px;
    line-height: 21px;
  }
}

@media screen and (max-width: 576px) {
  .siyuan_video_banner_main {
    height: 390px;
    min-height: 390px;
  }

  .siyuan_video_banner_main .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-copy {
    width: calc(100vw - 32px);
  }

  .siyuan_video_banner_main .siyuan-video-banner-title {
    font-size: 28px;
  }

  .siyuan_video_banner_main .siyuan-video-banner-desc,
  .siyuan_video_banner_main .siyuan-video-banner-breadcrumb {
    font-size: 16px;
    line-height: 21px;
  }
}