section.content {
    padding: 5rem 16%;
}

.header-title {
    font-family: var(--title-font);
    font-weight: bold;
    font-size: 1.8rem;
    margin: 2rem 0;
}

.paper-container {
    background: #fffbf4;
    border: 1px solid #e6dfd2;
    padding: 4%;

    box-shadow:
        0 1px 2px rgba(0, 0, 0, 0.1),
        0 8px 20px rgba(0, 0, 0, 0.08);
}

.date {
    margin-top: 2rem;
    margin-bottom: .5rem;
    text-align: right;
    font-size: 1.2rem;
    font-family: var(--title-font);

    .date-before {
        font-size: 1.1rem;
    }
}

.title-wrapper {
    border-bottom: .2rem solid #81a7bd;
    margin-bottom: 2rem;
    font-family: var(--title-font);

    .title {
        position: relative;
        font-weight: 500;
        font-size: 1.5rem;
        line-height: 2rem;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;

        .title-before {
            font-weight: normal;
            font-size: 1.3rem;
        }
    }
}

.markdown-body {
    margin: 2rem 0;

    .toc {
        border-radius: 1rem;
        background-color: var(--white);
        padding: .8rem .5rem;
        margin: 1.5rem 0;
        border: .1rem solid #cecece;

        ul {
            margin: 0;
        }

        a {
            text-decoration: none;
            color: #3f3f3f;
        }

        a:hover {
            color: var(--black);
        }
    }

    .toc::before {
        display: block;
        content: "目次";
        margin: .2rem 0 .7rem 1.2rem;
        font-weight: bold;
    }
}