h4{font-size:18px;font-weight:600;color:#333;margin-top:20px;margin-bottom:12px}.intro-box{background-color:#f8f8f8;border-left:4px solid #333;padding:20px;margin:30px 0;border-radius:4px}.intro-box p{margin-bottom:0;font-size:16px}.step-box{background-color:#f0f4ff;border-left:4px solid #06c;padding:18px;margin:20px 0;border-radius:4px}hr{border:none;border-top:1px solid #e0e0e0;margin:40px 0}strong em{font-style:italic;font-weight:600}