.typing-changing {
    background: linear-gradient(to right, #ff6b6b, #f06595, #e58a8a, #d9a7c7, #bcc6cc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
```css

#subtitle {
    background: linear-gradient(-45deg, #ee7752, #ce3e75, #6ed8ff, #23d5ab);/* 渐变参数 */
    background-size: 400% 400%;
    -webkit-animation: Gradient 10s ease infinite;
    -moz-animation: Gradient 10s ease infinite;
    animation: Gradient 10s ease infinite;
    -o-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

#subtitle:before {
    background-color: rgba(0, 0, 0, 0);
}