* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.swiper {
  width: 100vw;
  height: 100vh;
}

.swiper-slide {
  overflow: hidden;
}

.banner-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: rgba(0, 0, 0, 0.4);
}

.banner-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 200px;
}

.banner-title {
  display: flex;
  width: 441px;
  height: 293px;
}

.banner-title img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.banner-description {
  color: #fff;
  text-align: center;
  font-size: 60px;
  font-weight: 400;
}

.banner-img {
  display: block;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center center;
}
.logo {
  position: absolute;
  top: 48px;
  left: 80px;
  z-index: 10;
  display: flex;
  width: 80px;
  height: 80px;
}

.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.platform {
  position: absolute;
  top: 67vh;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none;
}

.platform-item {
  display: flex;
  width: 212px;
  height: 74px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  text-decoration: none;
  pointer-events: auto;
}

.platform-item:not(:first-child) {
  margin-left: 36px;
}

.platform-icon {
  display: flex;
  width: 50px;
  height: 50px;
}

.platform-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.platform-name {
  margin-left: 6px;
  color: #333;
  font-size: 20px;
  font-weight: 500;
}

.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  width: 65vw;
  padding-top: 24px;
  padding-bottom: 40px;
  margin: 0 auto;
  font-size: 14px;
  color: #fff;
  border-top: 2px solid rgba(255, 255, 255, 0.6);
}

.footer a {
  color: #fff;
  text-decoration: none;
}

.footer-divider {
  margin: 0 12px;
}

.footer-policy {
  display: flex;
  white-space: nowrap;
}

.footer-link {
  border-bottom: 1px solid #fff;
}

.footer-contact {
  margin-left: 86px;
}

.footer-copyright {
  margin-left: auto;
}

@media (max-width: 1440px) {
  .banner-title {
    width: 265px;
    height: 176px;
  }
  .banner-description {
    font-size: 36px;
  }

  .logo {
    top: 38px;
    left: 60px;
    width: 60px;
    height: 60px;
  }

  .platform {
    top: 54vh;
  }

  .platform-item {
    width: 180px;
    height: 59px;
  }

  .platform-icon {
    width: 40px;
    height: 40px;
  }

  .platform-name {
    margin-left: 4px;
    font-size: 16px;
  }

  .footer {
    row-gap: 4px;
    padding-top: 20px;
    padding-bottom: 20px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .footer-contact {
    margin-left: 0;
  }

  .footer-copyright {
    margin-left: 0;
  }
}

@media (max-width: 768px) {
  .banner-title {
    width: 159px;
    height: 105px;
  }

  .banner-description {
    font-size: 22px;
  }

  .logo {
    top: 30px;
    left: 30px;
    width: 48px;
    height: 48px;
  }

  .platform {
    flex-direction: column;
  }

  .platform-item:not(:first-child) {
    margin-left: 0;
    margin-top: 15px;
  }

  .footer {
    width: auto;
    left: 15px;
    right: 15px;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .footer-divider {
    margin: 0 4px;
  }
}

@media (max-width: 320px), (max-height: 656px) {
  .banner-content {
    margin-bottom: 240px;
  }
  .platform-item {
    width: 136px;
    height: 47px;
  }

  .platform-icon {
    width: 32px;
    height: 32px;
  }

  .platform-name {
    margin-left: 2px;
    font-size: 12px;
  }
}