.product-tree{background:#f8f9fa}.tree-intro{color:#4b5563;max-width:720px}.tree-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}.tree-branch{background:#fff;border:1px solid #e5e7eb;padding:24px}.tree-branch h3{font-size:18px;padding-bottom:13px;border-bottom:2px solid #c5a880}.tree-branch ul{list-style:none;margin:0;padding:0}.tree-branch li{border-bottom:1px solid #e5e7eb}.tree-branch li:last-child{border-bottom:0}.tree-branch a{display:flex;justify-content:space-between;gap:12px;padding:12px 0;color:#1c2024;text-decoration:none;font-size:14px;font-weight:700}.tree-branch a:hover{color:#9b7e50}.tree-branch span{color:#c5a880}@media(max-width:760px){.tree-grid{grid-template-columns:1fr}}