body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.8;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background-color: #fff;
        }
        h1 {
            font-size: 2em;
            font-weight: 600;
            text-align: center;
            margin-bottom: 30px;
            color: #222;
        }
        h2 {
            font-size: 1.5em;
            font-weight: 600;
            margin: 30px 0 15px;
            color: #222;
        }
        hr {
            border: none;
            border-top: 1px solid #eee;
            margin: 30px 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 25px auto;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin: -10px 0 30px;
            font-size: 0.95em;
        }
        ul {
            margin: 15px 0;
            padding-left: 25px;
        }
        li {
            margin: 10px 0;
        }
        strong {
            color: #222;
        }