.form-control input:focus {
box-shadow:0;
border-color: #FF0000;
box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(255, 0, 0, 0.6);
}
參考文章：http://stackoverflow.com/questions/14820952/change-bootstrap-input-focus-blue-glow
修改bootstrap3.*的form input在focus時的狀態
