.zalo-fab{position:fixed;right:20px;bottom:20px;z-index:250;display:inline-flex;align-items:center;gap:10px;padding:9px 16px 9px 9px;border-radius:999px;background:linear-gradient(135deg,#0A84FF 0%,#0068FF 60%,#0055D4 100%);color:#fff;text-decoration:none;box-shadow:0 10px 26px rgba(0,84,212,.34);transition:transform .18s ease,box-shadow .18s ease}.zalo-fab:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(0,84,212,.42)}.zalo-fab:active{transform:translateY(0)}.zalo-fab-ico{position:relative;width:38px;height:38px;flex-shrink:0;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center}.zalo-fab-ico svg{width:38px;height:38px;display:block;border-radius:50%}.zalo-fab-ico::after{content:'';position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(255,255,255,.55);animation:zaloPulse 2.2s ease-out infinite}@keyframes zaloPulse{0%{transform:scale(.85);opacity:.75}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}@media (prefers-reduced-motion:reduce){.zalo-fab-ico::after{animation:none;opacity:.35}}.zalo-fab-txt{display:flex;flex-direction:column;line-height:1.2}.zalo-fab-txt b{font-size:13.5px;font-weight:700;letter-spacing:.2px}.zalo-fab-txt span{font-size:12px;font-weight:600;color:rgba(255,255,255,.86);font-variant-numeric:tabular-nums}@media (max-width:640px){.zalo-fab{right:14px;bottom:14px;padding:8px;gap:0}.zalo-fab-txt{display:none}}