.qhd-search-overlay{position:fixed;inset:0;z-index:9999;background:rgba(15,23,42,0.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:flex-start;justify-content:center;padding-top:12vh;opacity:0;pointer-events:none;transition:opacity 0.2s ease}.qhd-search-overlay.open{opacity:1;pointer-events:auto}.qhd-search-modal{width:100%;max-width:640px;max-height:70vh;background:#fff;border-radius:16px;box-shadow:0 24px 64px rgba(0,0,0,0.2);display:flex;flex-direction:column;overflow:hidden;transform:translateY(-20px) scale(0.98);transition:transform 0.2s cubic-bezier(0.16,1,0.3,1)}.qhd-search-overlay.open .qhd-search-modal{transform:translateY(0) scale(1)}.qhd-search-header{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--gray-100,#f1f5f9)}.qhd-search-icon{width:22px;height:22px;color:var(--gray-400,#94a3b8);flex-shrink:0}.qhd-search-input{flex:1;border:none;outline:none;background:none;font-size:1.05rem;font-family:inherit;color:var(--gray-900,#0f172a)}.qhd-search-input::placeholder{color:var(--gray-400,#94a3b8)}.qhd-search-close{background:none;border:none;cursor:pointer;padding:4px;color:var(--gray-400,#94a3b8);border-radius:6px;transition:all 0.15s}.qhd-search-close:hover{background:var(--gray-100,#f1f5f9);color:var(--gray-700,#334155)}.qhd-search-close svg{width:20px;height:20px}.qhd-search-body{flex:1;overflow-y:auto;padding:8px 0}.qhd-search-hint{padding:24px 20px;text-align:center}.qhd-search-hint p{font-size:0.9rem;color:var(--gray-500,#64748b);margin-bottom:16px}.qhd-search-suggestions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.qhd-suggestion-chip{padding:6px 16px;border-radius:999px;font-size:0.85rem;font-weight:600;border:1px solid var(--gray-200,#e2e8f0);background:#fff;color:var(--gray-600,#475569);cursor:pointer;transition:all 0.15s;font-family:inherit}.qhd-suggestion-chip:hover{border-color:var(--brand,#1a73e8);color:var(--brand,#1a73e8);background:rgba(26,115,232,0.04)}.qhd-search-empty{padding:48px 20px;text-align:center;color:var(--gray-400,#94a3b8)}.qhd-search-empty svg{margin-bottom:12px;opacity:0.4}.qhd-search-empty p{font-size:1rem;color:var(--gray-600,#475569);margin-bottom:8px}.qhd-search-empty span{font-size:0.85rem}.qhd-search-empty a{color:var(--brand,#1a73e8);font-weight:600}.qhd-results{padding:4px 0}.qhd-result-group{margin-bottom:4px}.qhd-result-group-label{font-size:0.72rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--gray-400,#94a3b8);padding:8px 20px 4px}.qhd-result-item{display:flex;align-items:center;gap:12px;padding:10px 20px;text-decoration:none;transition:background 0.12s;cursor:pointer}.qhd-result-item:hover,.qhd-result-item.active{background:rgba(26,115,232,0.05)}.qhd-result-info{flex:1;min-width:0}.qhd-result-title{font-size:0.95rem;font-weight:600;color:var(--gray-900,#0f172a);margin-bottom:2px}.qhd-result-desc{font-size:0.82rem;color:var(--gray-500,#64748b);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.qhd-result-tag{flex-shrink:0;font-size:0.72rem;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--gray-100,#f1f5f9);color:var(--gray-600,#475569)}.qhd-result-item mark{background:rgba(26,115,232,0.12);color:var(--brand,#1a73e8);border-radius:2px;padding:0 2px}.nav-search-trigger{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:999px;background:transparent;border:none;cursor:pointer;color:var(--text-secondary,#475569);transition:all 0.2s;margin-left:8px;flex-shrink:0}.nav-search-trigger:hover{background:rgba(26,115,232,0.06);color:var(--brand,#1a73e8)}.nav-search-trigger svg{width:20px;height:20px}.nav-search-trigger .search-kbd{font-size:0.65rem;padding:1px 5px;border-radius:4px;background:var(--gray-100,#f1f5f9);border:1px solid var(--gray-200,#e2e8f0);color:var(--gray-500,#64748b);margin-left:4px}@media (max-width:768px){.qhd-search-overlay{padding-top:0}.qhd-search-modal{max-height:100vh;border-radius:0}.nav-search-trigger .search-kbd{display:none}}