.seo-index {
            max-width: 900px;
            margin: 0 auto;
            line-height: 2;
            text-transform: lowercase;
            letter-spacing: 0.5px;
        }

        .seo-index a {
            color: #555;
            text-decoration: none;
            margin: 0 6px;
            transition: 0.3s;
            border-bottom: 1px solid transparent;
        }

        .seo-index a:hover {
            color: var(--accent);
            border-bottom: 1px solid var(--accent);
        }
        
        .seo-index span { color: #333; }