.DM113-container { max-width: 1300px; margin: 0 auto; padding: 0 20px; } .DM113-section { margin: 40px 0; } .DM113-container h2 { margin-bottom: 20px; } /* Usage Layout */ .DM113-usage-container { display: flex; flex-direction: column; gap: 40px; } .DM113-usage-block { display: flex; flex-direction: column; align-items: center; text-align: center; } .DM113-usage-image img { width: 100%; height: auto; display: block; } .DM113-usage-text { padding: 15px; } .DM113-usage-text h3 { margin-bottom: 8px; } .DM113-usage-text p { margin: 0; color: #555; } /* Desktop */ @media (min-width: 769px) { .DM113-usage-block, .DM113-usage-block.reverse { flex-direction: row; justify-content: space-between; align-items: center; text-align: left; } .DM113-usage-block.reverse { flex-direction: row-reverse; } .DM113-usage-image { flex: 0 0 60%; } .DM113-usage-text { flex: 0 0 40%; padding: 0 30px; } } /* Mobile */ @media (max-width: 768px) { .DM113-container { padding: 0; } .DM113-usage-text { padding: 20px; } } Assembly Guide Watch how to assemble this engine model step by step. This detailed assembly video will help you gain a deeper understanding of the product! More than a toy or display model, this four-cylinder engine kit offers a hands-on assembly experience inspired by real mechanical engineering. Built with precision metal parts and realistic internal details to recreate the look and structure of a real four-cylinder engine. Craftsmanship · Experience · Connection · Inspiration Precision-Crafted From Premium Metal. Made from high-quality metal parts with precision craftsmanship for a realistic mechanical look and feel. Not Just A Model. A Real Mechanical Experience. An interactive engine kit that lets you assemble, observe, and experience mechanical motion firsthand. Build Memories Engineer Together. Enjoy the fun of building together while exploring the fascinating world of mechanical engineering. The Perfect Gift For Engineers And Dreamers. A unique gift for engine enthusiasts, makers, hobbyists, and anyone who loves engineering and creativity.