/****    表单CSS ****/
.form-control{ max-width:300px; }
.form-center{ max-width:600px; margin:0 auto;}
.form-center .btn-success{ margin-top:20px; }
label{ color:#AD7C77; }
#retrieve_password{color:#6792e0; cursor:pointer;}
#retrieve_password:hover{text-decoration:underline;}