Like Button States
A button can appear in three different states: normal, hovered, and clicked.
In the normal state, the button is outlined with a neutral color and shows a heart icon followed by the text Like.
In the hovered state, the outline and icon/text change to a highlighted color.
In the clicked state, the button is filled with the highlighted color and the icon/text become white.
Design or implement the button states so that the visual appearance changes correctly according to user interaction.
这道题考察的是按钮交互状态设计，核心是根据用户的鼠标悬停和点击行为切换不同的 UI 样式。通常需要把按钮拆成多个状态来管理：默认态显示灰色描边和图标，hover 态切换为高亮描边与文字颜色，clicked 态则变为实心高亮背景并将内容改为白色。实现时重点在于状态机式的样式切换、类名控制或前端组件状态管理，而不是复杂算法。
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