.designer-knowledge{color:#292929;overflow-wrap:anywhere;max-width:1080px;margin:0 auto;padding:48px 24px;line-height:1.8}.designer-knowledge h1{font-size:clamp(26px,4vw,40px);line-height:1.3}.designer-knowledge h2{margin:0 0 16px;font-size:24px}.designer-knowledge p{color:#555;margin:10px 0}.dk-section{border-bottom:1px solid #e5e5e5;padding:28px 0;scroll-margin-top:24px}.dk-section details{border:1px solid #ddd;border-radius:6px;margin:12px 0;padding:12px 16px}.dk-section summary{cursor:pointer;font-weight:600}.dk-barcodes{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px 18px;padding:14px 0 0;list-style:none;display:grid}.dk-barcodes li{align-items:center;gap:8px;font-size:13px;display:flex}.dk-barcodes small{color:#777;font-size:11px}.dk-toc{flex-wrap:wrap;gap:10px 20px;margin:24px 0;display:flex}.dk-toc a,.dk-guide-link{color:#333;text-underline-offset:3px;text-decoration:underline}.dk-guide-link{margin-top:24px;display:inline-block}@media (max-width:650px){.designer-knowledge{padding:28px 18px}.dk-barcodes{grid-template-columns:repeat(2,minmax(0,1fr))}.dk-section details{padding:10px}.dk-barcodes li{flex-wrap:wrap;gap:2px 5px}}