body {
	margin: 0;
	overflow: auto;
	font-size: 14px;
	color: #ffffff;
	min-height: 700px;
}
.hdr {
    position: relative;
	width: 100%;
	height: 65px;
    min-width: 1000px;
}
.hdr .logo {
	position: absolute;
    margin-left: 10%;
    margin-top: 1%;
}
.logo img {
    width: 300px; 
}
.nav {
    position: relative;
    float: right;
    margin-right: 10%;
    line-height: 65px;
}
.nav .active{
    color: gold;
    font-weight: bold;
}
.nav span {
    margin: 0 35px;
    cursor: pointer;
    font-size: 14px;
}
.main {
    position: relative;
    width: 100%;
}
.main .content {
    position: relative;
    text-align: center;
    width: 80%;
    margin: 0 auto;
}
.login {
    position: relative;
    top: 50%;
    left: 71%;
    transform: translate(-50%,55%);
}

.btn-oem {
    background-color: #0090ff;
    border-color: #0090ff; 
    color: #0090ff;
}
#upgrade{
    position: absolute;
    left: 0%;
    display: none;
}
 .toplinks  {
      position: relative;
    float: right;
    margin-right: 10%;
    line-height: 65px;
    }
 .gradient-link {
   font-size: 16px;
  font-weight: bold;
  text-decoration: none;
  margin-right: 30px;
  /* 渐变背景 */
  background: linear-gradient(#5B73C9, #AE6BB2, #CE6198, #E05371);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  
  /* 悬停动画 */
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
}

.gradient-link:hover {
  transform: translateY(-2px);
  background-position: 100% 50%;
}
.auto-height-img {
  width: 100%;  /* 宽度自适应容器 */
  height: auto; /* 高度按比例自动调整 */
}