export function HydrogenOverviewSkeleton() {
  return (
    <div className="flex flex-col gap-3 animate-pulse">
      <div className="bg-white rounded-xl border border-slate-100 px-3 py-2">
        <div className="h-3 w-44 bg-slate-100 rounded" />
      </div>

      {/* 5 卡占位 */}
      <div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-5 gap-2 md:gap-3">
        {Array.from({ length: 5 }).map((_, i) => (
          <div key={i} className="bg-white rounded-2xl border border-slate-100 shadow-sm p-3 md:p-4 space-y-2">
            <div className="flex items-center gap-2">
              <div className="w-7 h-7 rounded-xl bg-slate-100" />
              <div className="h-3 w-16 bg-slate-100 rounded" />
            </div>
            <div className="h-7 w-24 bg-slate-200 rounded" />
            <div className="space-y-1.5 pt-1 border-t border-slate-50">
              <div className="flex justify-between"><div className="h-2.5 w-10 bg-slate-100 rounded" /><div className="h-2.5 w-16 bg-slate-100 rounded" /></div>
              <div className="flex justify-between"><div className="h-2.5 w-10 bg-slate-100 rounded" /><div className="h-2.5 w-16 bg-slate-100 rounded" /></div>
            </div>
          </div>
        ))}
      </div>

      {/* 月度柱图占位 */}
      <div className="bg-white rounded-2xl border border-slate-100 shadow-sm p-4">
        <div className="flex items-center justify-between mb-3">
          <div className="h-4 w-32 bg-slate-100 rounded" />
          <div className="h-3 w-12 bg-slate-100 rounded" />
        </div>
        <div className="flex items-end gap-2 h-[120px]">
          {[60, 75, 50, 80, 35, 90, 45].map((h, i) => (
            <div key={i} className="flex-1 bg-slate-100 rounded-t" style={{ height: `${h}%` }} />
          ))}
        </div>
      </div>

      <div className="grid grid-cols-1 md:grid-cols-2 gap-3">
        <div className="bg-white rounded-2xl border border-slate-100 shadow-sm p-4">
          <div className="flex items-center justify-between mb-3">
            <div className="h-4 w-32 bg-slate-100 rounded" />
            <div className="h-3 w-12 bg-slate-100 rounded" />
          </div>
          <div className="space-y-3">
            {[100, 78, 56, 40, 28].map((w, i) => (
              <div key={i} className="flex items-center gap-3">
                <div className="w-5 h-5 rounded-full bg-slate-200" />
                <div className="h-3 w-32 bg-slate-100 rounded" />
                <div className="flex-1 h-4 rounded-md bg-gradient-to-r from-slate-200 to-slate-100" style={{ maxWidth: `${w}%` }} />
                <div className="h-3 w-12 bg-slate-100 rounded" />
              </div>
            ))}
          </div>
        </div>
        <div className="bg-white rounded-2xl border border-slate-100 shadow-sm p-4 flex flex-col gap-3">
          <div className="h-4 w-28 bg-slate-100 rounded" />
          <div className="flex items-center gap-3">
            <div className="w-1/2 h-[200px] flex items-center justify-center">
              <div className="w-32 h-32 rounded-full border-[18px] border-slate-100" />
            </div>
            <div className="flex-1 space-y-2">
              {Array.from({ length: 5 }).map((_, i) => (
                <div key={i} className="flex items-center gap-2">
                  <div className="w-2 h-2 rounded-full bg-slate-200" />
                  <div className="h-3 w-16 bg-slate-100 rounded" />
                  <div className="h-3 w-10 bg-slate-100 rounded ml-auto" />
                </div>
              ))}
            </div>
          </div>
        </div>
      </div>

      <div className="text-center text-[11px] text-slate-400 font-bold flex items-center justify-center gap-1.5">
        <span className="inline-block w-1.5 h-1.5 rounded-full bg-blue-400 animate-pulse" />
        正在加载氢能总览…
      </div>
    </div>
  );
}