body {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica,
    Arial, sans-serif;
}

.main {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  overflow: hidden;
}

.video-color-overlay {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.9) -4.74%,
    rgba(0, 0, 0, 0.2) 98.7%
  );
}

.title {
  position: relative;
  z-index: 2;
  color: white;
  text-align: center;
}

.title .zh {
  font-size: 66px;
  font-weight: 500;
}

.title .en {
  font-size: 24px;
  margin-top: 25px;
}

.footer {
  position: relative;
  height: 123px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #181818;
}

.footer .box1 {
  position: relative;
  top: 15px;
  text-align: center;
}

.footer .box1 .slogon {
  color: #fff;
  font-size: 20px;
}

.footer .box1 .record {
  display: block;
  color: #8b8b8b;
  font-size: 12px;
  text-decoration: none;
  margin-top: 19px;
}

.footer .box2 {
  position: absolute;
  right: 24px;
  display: flex;
  color: #fff;
  font-size: 12px;
}

.footer .box2 .info {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.footer .box2 .info .row {
  display: flex;
  align-items: center;
  margin-top: 6px;
}

.footer .box2 .info .row .icon {
  width: 16px;
  margin-right: 4px;
}

.footer .box2 .qr {
  display: flex;
}

.footer .box2 .item {
  margin-left: 16px;
}

.footer .box2 .qr img {
  width: 80px;
  height: 80px;
  margin-top: 2px;
}

.footer .box2 .qr .item:first-child img {
  transform: scale(1.11);
}

.go-admin {
  position: absolute;
  top: 15px;
  right: 22px;
  z-index: 15;
  vertical-align: top;
  padding: 8px 10px;
  color: #fff;
  border: 1px solid #fff;
  transition: all 0.2s ease-in-out;
  opacity: 1;
  font-size: 16px;
  text-align: center;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.go-admin:before {
  content: "";
  background-color: #000;
  height: 100%;
  width: 3em;
  display: block;
  position: absolute;
  top: 0;
  left: -4.5em;
  transform: skewX(-45deg) translateX(0);
  transition: none;
}

.go-admin:hover {
  background-color: #fff;
  color: #000;
}

.go-admin:hover:before {
  transform: skewX(-45deg) translateX(260px);
  transition: all 0.5s ease-in-out;
}

.go-admin:active {
  opacity: 0.8;
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
  .main {
    height: 100vh;
    min-height: 500px;
  }

  .title .zh {
    font-size: 32px;
    padding: 0 20px;
    line-height: 1.3;
  }

  .title .en {
    font-size: 14px;
    margin-top: 15px;
    padding: 0 20px;
  }

  .go-admin {
    top: 10px;
    right: 10px;
    padding: 6px 8px;
    font-size: 12px;
  }

  .footer {
    height: auto;
    flex-direction: column;
    padding: 30px 20px;
  }

  .footer .box1 {
    position: static;
    margin-bottom: 25px;
  }

  .footer .box1 .slogon {
    font-size: 14px;
    line-height: 1.6;
  }

  .footer .box1 .record {
    margin-top: 12px;
  }

  .footer .box2 {
    position: static;
    flex-direction: column;
    align-items: center;
  }

  .footer .box2 .info {
    align-items: center;
    margin-bottom: 20px;
  }

  .footer .box2 .info .row {
    justify-content: center;
  }

  .footer .box2 .qr {
    justify-content: center;
  }

  .footer .box2 .item {
    margin: 0 10px;
    text-align: center;
  }

  .footer .box2 .qr img {
    width: 70px;
    height: 70px;
  }

  .footer .box2 .qr .item:first-child img {
    transform: scale(1);
  }

  .footer .box2 .qr .label {
    font-size: 11px;
    margin-bottom: 5px;
  }
}

/* 更小屏幕适配 */
@media screen and (max-width: 375px) {
  .title .zh {
    font-size: 26px;
  }

  .title .en {
    font-size: 12px;
  }

  .footer .box1 .slogon {
    font-size: 13px;
  }

  .footer .box2 .qr img {
    width: 60px;
    height: 60px;
  }
}