body {
    width: 75%;
    margin: 0 auto;
}

header {
    margin-top: 10vh;
    margin-bottom: 5rem;
}

header > nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
}

header > nav a {
    padding: 2rem;
    color: var(--蓝色);
}
header > nav a:hover {
    background-color: var(--浅蓝色);
    border-radius: 10px;
}

header > nav svg {
    width: 6rem;
}

main > h1 {
    text-align: center;
    margin-bottom: 1em;
    color: var(--黑色);
}

main > a {
    display: grid;
    grid-template-columns: 2rem auto;
    color: var(--灰色);
    margin-bottom: 1rem;
}
main > a:hover {
    background-color: var(--浅蓝色);
    border-radius: 10px;
}

main > a > svg {
    width: 1rem;
    color: var(--蓝色);
    place-self: center;
}

main > a > p {
    grid-column: 2/3;
}

main > a > h2,
main > a > p
{
    font-size: 1rem;
    line-height: 2;
}

#more-button {
    display: block;
    margin: 3rem auto 0 auto;
    padding: 0.75rem;
    width: 70%;
    border: none;
    border-radius: 0.5rem;
    background-color: var(--蓝色);
    color: var(--白色);
    font-size: 1rem;
}


@media (max-width: 767px) {
    body {
        width: 95vw;
    }
    header {
        margin-top: 0;
    }
    header > nav {
        grid-template-columns: repeat(2, 1fr);
    }
}