/* Product lineage and design transfer are intentionally separate. */
.project-relations{margin:0 0 32px;padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.project-relations h2,.project-relations h3{font-family:var(--font-body);font-size:1.08rem;line-height:1.5;margin:0 0 4px}
.relation-caption,.relation-related{font-size:.85rem;color:var(--muted);line-height:1.65;margin:0}
.relation-lineage{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;padding:0;margin:18px 0}
.relation-lineage li{position:relative;min-width:0;padding-left:12px;border-left:2px solid var(--accent)}
.relation-lineage li+li:before{content:"→";position:absolute;left:-26px;top:9px;color:var(--muted)}
.project-relations a{color:var(--accent);text-underline-offset:4px;text-decoration-thickness:1px}
.relation-lineage a{display:inline-flex;align-items:center;min-height:44px;font-weight:600;font-size:1rem}
.project-relations small{display:block;color:var(--muted);font-size:.82rem;line-height:1.6}
.relation-transfer{padding:14px 16px;background:var(--bg);border-radius:10px;margin-bottom:14px}
.relation-transfer p{font-size:.9rem;line-height:1.8;margin:0 0 4px}
.relation-transfer b{font-size:.8rem;color:var(--muted);font-weight:500}
.relation-transfer a,.relation-related a{display:inline-block;padding-block:5px}
.project-context{padding:16px 20px;border-left:2px solid var(--accent);background:var(--surface);font-size:.94rem;line-height:1.8}
.project-context p{margin:0}.project-context p+p{margin-top:8px}.project-context a{color:var(--accent);text-underline-offset:4px}
@media(max-width:600px){.project-relations{padding:18px;margin-bottom:24px}.relation-lineage{grid-template-columns:1fr;gap:18px;margin:12px 0 18px}.relation-lineage li{padding-left:14px}.relation-lineage li+li:before{content:"↓";left:14px;top:-21px}.relation-lineage a{min-height:44px}.relation-transfer{padding:12px}.project-context{padding:14px 16px}}