html {
    line-height: 1;
    font-size: 16px;
}

body {
    font-family: 'Noto sans CJK TC', sans-serif, serif;
    position: relative;
}

main {

    height: 100vh;
}

a {
    text-decoration: none;
    color: black;
    text-align: center;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
}

a:hover {
    color: #E50012;
}

a h1 {
    margin: auto;
    width: 100%;
    height: 500px;
    background-image: url("../img/logo.png");
    background-repeat: no-repeat;
    background-size: 100%;
    overflow: hidden;
    text-indent: 100%;
    white-space: nowrap;
    transition: all 0.2s ease-in-out;
    margin-bottom: 0;
    transform: scale(0.9);
}

a:hover h1 {
    transform: scale(1);
}

.btn-link {
    font-size: 30px;
    font-weight: bolder;
    text-decoration: none;
    background-color: #b02417;
    color: #fff;
    padding: 25px 50px;
    border-radius: 15px;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    color: #fff;
    display: block;
    text-align: center;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    margin-top: -150px;
}

.btn-link:hover {
    color: #fff;
    background-color: #b3443a;

    box-shadow: 0 0.5rem 0.5rem rgba(0, 0, 0, 0.35);

}

@media (min-width: 576px) {
    a h1 {
        width: 400px;
        height: 400px;
    }
}

@media (min-width: 992px) {


    .btn-link {
        margin-top: 0;
        display: inline-block;
    }
}