/* SX-GIFPERF 20260802: giam lag GIF dong.
   Card ngoai man hinh -> trinh duyet BO QUA render, GIF ngoai man hinh khong ton CPU.
   contain-intrinsic-size:auto = ghi nho chieu cao that sau lan hien dau, khong giat cuon.
   Trinh duyet cu khong ho tro thi tu bo qua, giao dien KHONG doi. */
@supports (content-visibility: auto) {
    .sl-prodli { content-visibility: auto; contain-intrinsic-size: auto 340px; }
}