Speed up top nav with turbo routing and external base CSS.

Remove view-transition lag, swap main content without full reload, prefetch pages, and tear down SSE timers on leave.

Co-authored-by: Cursor <cursoragent@cursor.com>

static/js/market.js

@@ -689,7 +689,12 @@
         }
     }
 
-    document.addEventListener('DOMContentLoaded', function () {
+    function cleanupMarketPage() {
+        stopKlineStream();
+        destroyChart();
+    }
+
+    function bootMarketPage() {
         if (!window.LightweightCharts) {
             if (emptyEl) emptyEl.textContent = '图表库加载失败，请刷新页面';
             return;
@@ -699,15 +704,6 @@
         bindAutoButton();
         bindChartOptions();
 
-        document.addEventListener('click', function (e) {
-            if (e.target.closest('[data-theme-pick]') && lastData) {
-                setTimeout(function () {
-                    destroyChart();
-                    renderChart(lastData, { forceFull: true });
-                }, 80);
-            }
-        });
-
         var active = document.querySelector('.period-tab.active');
         if (active) currentPeriod = active.getAttribute('data-period') || '15m';
 
@@ -732,10 +728,22 @@
         } else {
             updateRefreshHint(false);
         }
+    }
 
-        window.addEventListener('beforeunload', function () {
-            stopKlineStream();
-            destroyChart();
+    if (!window.__QIHUO_MARKET_THEME__) {
+        window.__QIHUO_MARKET_THEME__ = true;
+        document.addEventListener('click', function (e) {
+            if (e.target.closest('[data-theme-pick]') && lastData) {
+                setTimeout(function () {
+                    destroyChart();
+                    renderChart(lastData, { forceFull: true });
+                }, 80);
+            }
         });
-    });
+    }
+
+    if (window.qihuoOnPageLoad) window.qihuoOnPageLoad(bootMarketPage);
+    else document.addEventListener('DOMContentLoaded', bootMarketPage);
+    if (window.qihuoOnPageLeave) window.qihuoOnPageLeave(cleanupMarketPage);
+    window.addEventListener('pagehide', cleanupMarketPage);
 })();