.code-block {
            background-color: #1e1e2f !important;
            color: #f8f8f2 !important;
            padding: 1.2rem;
            border-radius: 8px;
            font-family: 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
            font-size: 0.9rem;
            line-height: 1.5;
            white-space: pre-wrap;
            word-break: break-word;
            border: 1px solid #444;
            max-height: 400px;
            overflow: auto;
        }
        .config-preview {
            margin-top: 1rem;
        }
        .badge-nginx {
            background-color: #009900;
            color: white;
            font-size: 0.8rem;
            padding: 0.3rem 0.6rem;
            border-radius: 20px;
        }
        .param-label {
            font-weight: 600;
            color: var(--accent-color);
            width: 150px;
        }
        .instruction-hint {
            background-color: #eef5ff;
            border-left: 4px solid #0d6efd;
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 0 6px 6px 0;
        }
        .upstream-list textarea {
            font-family: monospace;
        }
        .example-badge {
            background-color: #f0f0f0;
            color: #333;
            padding: 0.25rem 0.75rem;
            border-radius: 30px;
            font-size: 0.8rem;
            border: 1px solid #ccc;
        }
        .advanced-toggle {
            color: #0d6efd;
            cursor: pointer;
            text-decoration: none;
            font-weight: 500;
        }
        .advanced-toggle:hover {
            text-decoration: underline;
        }
        .advanced-section {
            background-color: #f9f9fc;
            padding: 1rem;
            border-radius: 8px;
            margin-top: 0.5rem;
            border: 1px solid #e0e0e0;
        }