/*彩色文字*/
.rainbow-text {
    background: -webkit-linear-gradient(45deg, #0000ff, #dd00ff, #ff0d4d, #008000);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/**渐变背景*/
.header-footer {
    background: linear-gradient(120deg, rgba(247,135,54,0.208) 0%, rgba(54,125,247,0.208) 100%);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}