.tip-box{background:#f0f7ff;border-left:4px solid #1a3a5c;padding:1rem 1.25rem;margin:1.5rem 0;border-radius:0 6px 6px 0}.intro-hook{background:#fef9f0;border-left:4px solid #d4a017;padding:1rem 1.25rem;margin-bottom:2rem;font-style:italic;color:#444;border-radius:0 6px 6px 0}