.text-transition {
    transition-duration: .15s;
    transition-timing-function: cubic-bezier(.4,0,.2,1);
}

.text-duration {
    transition-duration: .3s;
}

p a {
    position: relative;
    z-index: 1;
    background-color: transparent;
    text-decoration: none;
}

p a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 0.5em;
    background-color: rgba(219, 110, 167, 0.5);
    z-index: -1;
    transition: height 0.3s cubic-bezier(.4,0,.2,1);
}

p a:hover::before {
    height: 1.2em;
}

/* 未访问的链接 */
p a:link {
    color: #8B0000; 
}

/* 已访问的链接 */
p a:visited {
    color: #8B0000;     
}

p a:active {
    color: #8B0000; 
}