- 当前 Bug 的表现（可附上截图） font-weight:500;letter-spacing:4rpx 获取焦点后字重和字距失效， 失去焦点后恢复正常 [图片] [图片] - 预期表现 正常情况下字重不会改变 - 复现路径 开发者工具显示正常 在iphone8 小米6等真机上复现 - 提供一个最简复现 Demo <input class="editText {{phoneFocus?'borderRed':''}}"       placeholder-class="editText-placeholder" bindinput="phone" maxlength="11"       name='phone'       data-value='phone' bindblur='inputBlur'       bindfocus='inputFocus' type='number' placeholder='请输入手机号'/> <input class="editText {{passwordFocus?'borderRed':''}}" placeholder-class="editText-placeholder"       bindinput='password' type='password' bindfocus='inputFocus'       bindblur='inputBlur' data-value='password'       placeholder='请输入登录密码'/> input{height:108rpx;caret-color:#fc5a44;font-size:35rpx;font-weight:500;letter-spacing:4rpx;line-height:69rpx;} .borderRed{border-bottom: 1px solid #fc5a44!important;} .editText{color:rgba(36,39,46,1);border-bottom: 1px solid rgba(238,237,243,1);} .editText-placeholder{color:rgba(200,201,204,1);}