body { background-image: url("/images/bg-login.jpg"); background-repeat: no-repeat; background-size: cover; min-height: 100vh; }
body:before { content: ""; background-color: rgba(0, 0, 0, .2); position: fixed; top: 0; left: 0; right: 0; bottom: 0; }
.login-wrapper { max-width: 420px; padding: 20px; margin: 0 auto; position: relative; box-sizing: border-box; z-index: 2; }
.login-wrapper > .layui-form { padding: 25px 30px; background-color: #fff; box-shadow: 0 3px 6px -1px rgba(0, 0, 0, 0.19); box-sizing: border-box; border-radius: 4px; }
.login-wrapper > .layui-form > h2 { color: #333; font-size: 18px; text-align: center; margin-bottom: 25px; }
.login-wrapper > .layui-form > .layui-form-item { margin-bottom: 25px; position: relative; }
.login-wrapper > .layui-form > .layui-form-item:last-child { margin-bottom: 0; }
.login-wrapper > .layui-form > .layui-form-item > .layui-input { height: 46px; line-height: 1; border-radius: 2px !important; }
.login-wrapper .layui-input-icon-group > .layui-input { padding-left: 46px; }
.login-wrapper .layui-input-icon-group > .layui-icon { width: 46px; height: 46px; line-height: 46px; font-size: 20px; color: #909399; position: absolute; left: 0; top: 0; text-align: center; }
.login-wrapper > .layui-form > .layui-form-item.login-captcha-group { padding-right: 135px; }
.login-wrapper > .layui-form > .layui-form-item.login-captcha-group > .login-captcha { height: 46px; width: 120px; cursor: pointer; box-sizing: border-box; border: 1px solid #e6e6e6; border-radius: 2px !important; position: absolute; right: 0; top: 0; }
.login-wrapper > .layui-form > .layui-form-item > .layui-form-checkbox { margin: 0 !important; padding-left: 25px; }
.login-wrapper > .layui-form > .layui-form-item > .layui-form-checkbox > .layui-icon { width: 15px !important; height: 15px !important; }
.login-wrapper > .layui-form .layui-btn-fluid { height: 48px; line-height: 48px; font-size: 16px; border-radius: 2px !important; }
.login-wrapper > .layui-form > .layui-form-item.login-oauth-group > a > .layui-icon { font-size: 26px; }
.login-copyright { color: #eee; padding-bottom: 20px; text-align: center; position: relative; z-index: 1; }
@media screen and (min-height: 550px) {
    .login-wrapper { margin: -250px auto 0; position: absolute; top: 50%; left: 0; right: 0; width: 100%; }
    .login-copyright { position: absolute; bottom: 0; right: 0; left: 0; }
}