.main-layout-appbar-inner {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    width: 100%;
    padding: 0 16px;
    box-sizing: border-box;
}

.main-layout-left,
.main-layout-right {
    display: flex;
    align-items: center;
    padding-right: 16px;
}

.main-layout-link {
    margin-left: 32px;
    color: #1976d2;
    text-decoration: none;
}

.main-layout-content {
    min-height: 400px;
    padding-top: 64px;
    padding-left: 16px;
    padding-right: 16px;
    background-color: #FCFCFC;
}

.main-layout-footer {
    background-color: #fff;
    padding: 16px;
    text-align: center;
    border-top: 1px solid #e5ded9;
}

.topic-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    background-color: #fff;
    border: 1px solid #E5DED9;
    border-radius: 8px;
}

.topic-card-title {
    font-size: 18px;
    color: #302B27;
    padding: 16px 16px 0px
}

.topic-card-description {
    font-size: 13px;
    color: #555;
    padding: 8px 16px
}

.richtext-content {
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

    .richtext-content p {
        margin: 1rem 0;
    }

    .richtext-content h1,
    .richtext-content h2,
    .richtext-content h3,
    .richtext-content h4,
    .richtext-content h5,
    .richtext-content h6 {
        margin: 1.5rem 0 1rem;
        font-weight: 600;
    }

    .richtext-content ul,
    .richtext-content ol {
        margin: 1rem 0 1rem 2rem;
        padding-left: 1.5rem;
    }

    .richtext-content li {
        margin-bottom: 0.5rem;
    }

    .richtext-content blockquote {
        border-left: 4px solid #ccc;
        padding-left: 1rem;
        color: #666;
        margin: 1rem 0;
        font-style: italic;
    }

    .richtext-content pre {
        background-color: #f5f5f5;
        padding: 1rem;
        overflow-x: auto;
        font-family: Consolas, monospace;
        border-radius: 4px;
        margin: 1rem 0;
    }

    .richtext-content code {
        background-color: #eee;
        padding: 0.2rem 0.4rem;
        border-radius: 3px;
        font-family: Consolas, monospace;
    }

    .richtext-content a {
        color: #384949;
        text-decoration: underline;
    }

richtext-content table {
    border-collapse: collapse;
    border-spacing: 0!important;
    width: 100%;
}

.richtext-content th,
.richtext-content td {
    border: 1px solid #E5DED9;
    text-align: left;
    vertical-align: top;
    padding: 8px;
    border-spacing: 0!important
}

.richtext-content th {
    background-color: #f2f2f2;
    font-weight: 600;
}