/* 小枫网络：www.xfwl.club */
* {
    padding: 0;
    margin: 0;
}
#xf_dmy {
    position: fixed;
    height: 100%;
    width: 100%;
    z-index: -1;
    opacity: 1;
}
main {
    position: absolute;
    color: #fff;
}
section {
    padding: 3rem 0;
    text-align: center;
}
section img {
    width: 50%;
    border-radius: .8rem;
    opacity: .7;
}
section div {
    margin: 1.8rem auto;
    width: 85%;
}
section div h2 {
    font-size: 3rem;
    color: #00ffff;
}
section div h3 {
    font-size: 2rem;
    color: red;
}
section div p,
section div h3 {
    letter-spacing: .2rem;
    margin-top: 1.2rem;
}
section div p {
    font-size: 1.1rem;
}
section div p a {
    transition: color .5s;
    color: bisque;
}
section div a:hover {
    color: darkviolet;
}
ul {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 5;
    background-color: rgba(0, 0, 0, .5);
    border: 1px solid green;
    padding: 1rem;
}
ul li {
    list-style: none;
    text-align: center;
    line-height: 2.2rem;
}
ul li:first-child {
    font-weight: bold;
    font-size: 1rem;
    margin-bottom: .4rem;
}
ul li a {
    color: #b8b8b8;
    text-decoration: none;
    transition: color .5s;
}
ul li a:hover {
    color: #00ffff;
}
@media only screen and (min-width: 0)and (max-width: 500px) {
    section div h2 {
        font-size: 2rem;
    }
    section div h3 {
        font-size: 1.5rem;
    }
    ul li {
        line-height: 1.5rem;
        font-size: .7rem;
    }
    section img {
        width: 80%;
        border-radius: .5rem;
    }
}