body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            max-width: 800px;
            margin: 0;
            padding: 60px 20px 60px 60px;
            line-height: 1.7;
            color: #1a1a1a;
            background-color: #E8E4DB;
        }
        .site-header {
            font-size: 1.1em;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .back-link {
            display: inline-block;
            margin-bottom: 50px;
            color: #17A2B8;
            text-decoration: none;
            font-size: 1em;
        }
        .back-link:hover {
            text-decoration: underline;
        }
        h1 {
            font-family: 'Roboto Slab', serif;
            font-size: 3em;
            font-weight: 900;
            color: #1a1a1a;
            margin-bottom: 15px;
            margin-top: 0;
        }
        .date {
            color: #1a1a1a;
            font-size: 1.1em;
            margin-bottom: 15px;
        }
        .separator {
            border: none;
            border-top: 6px solid #1a1a1a;
            margin: 20px 0 40px 0;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        li {
            margin-bottom: 25px;
            padding-left: 30px;
            position: relative;
            line-height: 1.7;
        }
        li::before {
            content: "●";
            color: #cc0;
            font-size: 1.0em;
            position: absolute;
            left: 0;
            top: -1px;
        }
        a {
            color: #17A2B8;
            text-decoration: none;
        }
        a:hover {
            text-decoration: underline;
        }
        em {
            font-style: italic;
        }
        @media (max-width: 768px) {
            body {
                padding: 40px 20px;
            }
            h1 {
                font-size: 2em;
            }
            .site-header {
                font-size: 1em;
            }
        }