let currentSort = 'total_income'; function switchSort(el) { document.querySelectorAll('.sort-btn').forEach(b => b.classList.remove('active')); el.classList.add('active'); currentSort = el.dataset.sort; } async function loadRankingDetail() { const startDate = document.getElementById('rankStartDate').value; const endDate = document.getElementById('rankEndDate').value; let url = API + '/api/stats/boss-ranking?sortBy=' + currentSort; if (startDate) url += '&startDate=' + startDate; if (endDate) { const d = new Date(endDate); d.setDate(d.getDate() + 1); url += '&endDate=' + formatLocalDate(d); } try { const res = await fetch(url, { headers: headers() }); if (!res.ok) return; const rows = await res.json(); const container = document.getElementById('rankingDetailList'); if (rows.length === 0) { container.innerHTML = '