*{margin:0;padding:0;box-sizing:border-box;}
body{
    background:#f8f9fa;
    font-family:"微软雅黑",sans-serif;
    color:#333;
}
.container{
    width:92%;
    margin:0 auto;
    padding:30px 0;
}
.logo-box{
    text-align:center;
    margin:40px 0;
}
.logo{
    width:120px;
    height:auto;
    margin-bottom:15px;
}
.logo-box h2{
    font-weight:normal;
    color:#444;
    letter-spacing:2px;
}
.cate-box{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
    margin:50px 0;
}
.cate-card{
    display:block;
    background:#fff;
    padding:35px 20px;
    border-radius:16px;
    text-align:center;
    text-decoration:none;
    box-shadow:0 2px 12px #eee;
    transition:0.3s;
}
.cate-card:hover{
    transform:translateY(-5px);
}
.cate-card h3{
    font-size:20px;
    color:#222;
    margin-bottom:10px;
}
.cate-card p{
    color:#888;
    font-size:14px;
}
.tips-text{
    text-align:center;
    color:#999;
    font-size:14px;
    margin:30px 0;
    line-height:1.6;
}
.login-btn-box{
    display:flex;
    justify-content:center;
    gap:15px;
    margin-top:40px;
}
.btn{
    display:inline-block;
    padding:12px 30px;
    background:#333;
    color:#fff;
    border-radius:30px;
    text-decoration:none;
    font-size:15px;
}
.btn-light{
    background:#eee;
    color:#333;
}