       padding: 1.5rem;
        }
        
        .article-title {
            font-size: 1.8rem;
        }
        
        .article-meta {
            flex-direction: column;
            gap: 1rem;
        }
        
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .toc-layout { grid-template-columns: 1fr; }
        .toc-sidebar { display: none; }
    }
</style>

</head>
<body>
    <header class="site-header">
        <div class="container">
            <div class="logo">
 