/* XCLASS 前端反复制保护 — 仅限制展示内容，输入框不受影响 */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
/* 输入框/可编辑区始终可选中、可复制 */
input,
textarea,
[contenteditable] {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}