@keyframes scale {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.1);
  }
}
:root {
  --footer-height: 60px;
}
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  z-index: 1000;
}
header .container {
  display: flex;
  align-items: center;
  height: 60px;
  color: white;
}
header .container .logo {
  width: 30px;
  height: 30px;
}
header .container .logo img {
  width: 100%;
  height: 100%;
}
header .container h1 {
  font-weight: normal;
  font-size: 25px;
}
header .container .subtitle {
  font-size: 14px;
  line-height: 13px;
}
header .container nav {
  margin: 0 auto;
}
header .container nav ul {
  display: flex;
  gap: 30px;
}
header .container #download_button {
  cursor: pointer;
  position: relative;
}
header .container #download_button::after {
  content: '';
  width: 0;
  height: 1px;
  background-color: #ffffff;
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  transition: all 0.3s ease-in-out;
}
header .container #download_button:hover::after {
  width: 100%;
}
.main {
  min-height: 100vh;
  background-image: url(https://game.chizhoushengnuo.cn/smallresources/images/googleearth/20260608images/bg.jpg);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.main h1 img {
  width: 512px;
}
.main p {
  font-size: 35px;
  color: #ffffff;
  letter-spacing: 2px;
  font-weight: 200;
  text-align: center;
  line-height: 50px;
  margin-top: 30px;
}
.main #download_button {
  width: 240px;
  height: 60px;
  font-size: 30px;
  color: #ffffff;
  background-color: #0b55eef7;
  border-radius: 5px;
  cursor: pointer;
  margin-top: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  animation: scale 0.5s linear infinite alternate;
}
footer {
  background-color: #222222;
  color: #A4A4A4;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  padding-bottom: 10px;
  
  /*display: flex;*/
  /*align-items: center;*/
  /*justify-content: center;*/
  height: var(--footer-height);
}
footer .container {
  display: flex;
  gap: 20px;
  justify-content: center;
  font-size: 14px;
  padding-top: 10px;
}
footer .container a {
  color: inherit;
}
footer .container div::after {
  content: '';
  height: 10px;
  border-right: 1px solid #A4A4A4;
  margin-left: 20px;
}
footer .container div:last-of-type::after {
  display: none;
}