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(max-width:700px){.he-nav{flex-wrap:wrap;padding:14px 20px 0}.he-nav-logo{flex:1}.he-nav-center{border-top:1px solid var(--border);order:3;justify-content:center;gap:20px;width:100%;margin-top:10px;padding:10px 0 14px}.he-main{padding:36px 20px 72px}.he-sle-grid,.he-tips-grid{grid-template-columns:1fr}.he-arcp-grid{grid-template-columns:1fr 1fr}.he-abbr-list{border-radius:var(--radius-md)}.he-tree{grid-template-columns:1fr}.he-tree-col{border-right:none;border-bottom:1px solid var(--border)}.he-tree-col:last-child{border-bottom:none}}