*{margin:0;padding:0;box-sizing:border-box;}
body{background:#f5f7fa;font-family:"微软雅黑";}
.container{width:500px;margin:50px auto;background:#fff;padding:30px;border-radius:8px;box-shadow:0 0 10px rgba(0,0,0,0.1);}
h2{text-align:center;margin-bottom:30px;color:#333;}
.form-item{margin-bottom:20px;}
label{display:block;margin-bottom:8px;color:#555;}
input,select,textarea{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;}
.submit-btn{width:100%;padding:12px;background:#2d8cf0;color:#fff;border:none;border-radius:4px;font-size:16px;cursor:pointer;}