*{margin:0;padding:0;box-sizing:border-box;font-family:Microsoft Yahei}
body{background:#f3f6fa;padding:15px}
.card{background:#fff;padding:16px;border-radius:10px;margin-bottom:14px}
.btn{width:100%;padding:13px;border:none;border-radius:8px;color:#fff;font-size:15px;margin:6px 0}
.blue{background:#2563eb}
.green{background:#10b981}
.red{background:#ef4444}
input,textarea{width:100%;padding:12px;border:1px solid #dde2ec;border-radius:8px;margin:7px 0}