<div class="stats-grid">
<div class="stat-card stat-card-1">
  <div class="stat-icon">🚀</div>
  <span class="stat-number" data-target="12847" data-suffix="" data-decimals="0">0</span>
  <div class="stat-label">Active Users</div>
</div>
<!-- 其他卡的类似结构 -->
</div>

<style>
`
.stat-number {
background: linear-gradient(135deg, var(--accent), var(--accent-light));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
}
.stat-card-1 { --accent: #6366f1; --accent-light: #8b5cf6; }
`
</style>

<script>
(function() {
function animateCounter(el, target, suffix, decimals, duration) {
  var start = null;
  function step(ts) {
    if (!start) start = ts;
    var p = Math.min((ts-start)/duration,1);
    var v = (1-Math.pow(1-p,3))*target;
    el.textContent=(decimals>0?v.toFixed(decimals):Math.floor(v).toLocaleString())+suffix;
    if(p<1) requestAnimationFrame(step);
  }
  requestAnimationFrame(step);
}
var observer = new IntersectionObserver(function(entries) {
  entries.forEach(function(e) {
    if (e.isIntersecting) {
      var el = e.target;
      if (!el.classList.contains('animated')) {
        el.classList.add('animated');
        animateCounter(el, parseFloat(el.dataset.target), el.dataset.suffix || '', parseInt(el.dataset.decimals || '0'), 2000);
      }
    }
  });
}, { threshold: 0.5 });

document.querySelectorAll('.stat-number').forEach(function(el) {
  observer.observe(el);
});
})();
</script>