高级搜索 - 招标信息查询系统 <script> // === Keyword Highlight === (function(){ const kw = new URLSearchParams(location.search).get('keyword'); if (!kw || !kw.trim()) return; const words = kw.trim().split(/\s+/).filter(w => w.length > 0); if (!words.length) return; const pattern = new RegExp('(' + words.map(w => w.replace(/[.*+?^${}()|[\]\]/g, '\$&')).join('|') + ')', 'gi'); document.querySelectorAll('.card-body a[href^="/tender/"]').forEach(el => { el.innerHTML = el.textContent.replace(pattern, '<mark class="hl">$1</mark>'); }); })(); // === Search History (localStorage) === (function(){ const KEY = 'search_history'; const MAX = 15; const input = document.getElementById('kw-input'); const dropdown = document.getElementById('sh-dropdown'); if (!input || !dropdown) return; function getHistory() { try { return JSON.parse(localStorage.getItem(KEY)) || []; } catch(e) { return []; } } function saveHistory(list) { localStorage.setItem(KEY, JSON.stringify(list.slice(0, MAX))); } function addHistory(kw) { if (!kw || !kw.trim()) return; let list = getHistory().filter(h => h !== kw.trim()); list.unshift(kw.trim()); saveHistory(list); } function clearHistory() { localStorage.removeItem(KEY); dropdown.style.display = 'none'; } function renderDropdown(filter) { let list = getHistory(); if (filter) list = list.filter(h => h.includes(filter)); if (!list.length) { dropdown.style.display = 'none'; return; } dropdown.innerHTML = '<div class="sh-header"><span>搜索历史</span><a onclick="event.stopPropagation();localStorage.removeItem('search_history');document.getElementById('sh-dropdown').style.display='none'">清空</a></div>' + list.map(h => '<div class="sh-item" data-kw="' + h.replace(/"/g, '"') + '"><i class="fas fa-history"></i>' + h + '</div>').join(''); dropdown.style.display = 'block'; dropdown.querySelectorAll('.sh-item').forEach(el => { el.addEventListener('click', function(e) { e.stopPropagation(); input.value = this.dataset.kw; dropdown.style.display = 'none'; input.closest('form').submit(); }); }); } // Save current search keyword const currentKw = new URLSearchParams(location.search).get('keyword'); if (currentKw && currentKw.trim()) addHistory(currentKw.trim()); // Show on focus input.addEventListener('focus', function() { renderDropdown(this.value); }); input.addEventListener('input', function() { renderDropdown(this.value); }); // Hide on click outside document.addEventListener('click', function(e) { if (!input.contains(e.target) && !dropdown.contains(e.target)) { dropdown.style.display = 'none'; } }); })(); </script>

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