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public/assets/js/main.js

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+/* 酷冰甲降温服 · 前台交互 */
+(function () {
+  'use strict';
+
+  // 明暗切换
+  var root = document.documentElement;
+  var toggle = document.getElementById('themeToggle');
+  if (toggle) {
+    toggle.addEventListener('click', function () {
+      var cur = root.getAttribute('data-theme') === 'dark' ? 'light' : 'dark';
+      root.setAttribute('data-theme', cur);
+      try { localStorage.setItem('site_theme', cur); } catch (e) {}
+    });
+  }
+
+  // 滚动时 header 阴影
+  var header = document.getElementById('siteHeader');
+  function onScroll() {
+    if (header) header.classList.toggle('scrolled', window.scrollY > 10);
+  }
+  window.addEventListener('scroll', onScroll, { passive: true });
+  onScroll();
+
+  // 移动端菜单
+  var burger = document.getElementById('navBurger');
+  var links = document.getElementById('navLinks');
+  if (burger && links) {
+    burger.addEventListener('click', function () { links.classList.toggle('open'); });
+    links.addEventListener('click', function (e) {
+      if (e.target.tagName === 'A') links.classList.remove('open');
+    });
+  }
+
+  // 滚动揭示
+  var io = new IntersectionObserver(function (entries) {
+    entries.forEach(function (en) {
+      if (en.isIntersecting) { en.target.classList.add('in'); io.unobserve(en.target); }
+    });
+  }, { threshold: 0.12 });
+  document.querySelectorAll('.reveal').forEach(function (el, i) {
+    el.style.transitionDelay = (i % 6) * 60 + 'ms';
+    io.observe(el);
+  });
+
+  // 磁性按钮
+  document.querySelectorAll('.magnetic').forEach(function (el) {
+    el.addEventListener('mousemove', function (e) {
+      var r = el.getBoundingClientRect();
+      var x = e.clientX - r.left - r.width / 2;
+      var y = e.clientY - r.top - r.height / 2;
+      el.style.transform = 'translate(' + x * 0.18 + 'px,' + y * 0.28 + 'px)';
+    });
+    el.addEventListener('mouseleave', function () { el.style.transform = ''; });
+  });
+})();