.fcb-wrap{position:fixed;right:24px;bottom:24px;width:58px;height:58px;z-index:99999;font-family:Arial,sans-serif}
.fcb-items{position:absolute;inset:0}
.fcb-main,.fcb-item{position:absolute;right:0;bottom:0;width:58px!important;height:58px!important;min-width:58px!important;min-height:58px!important;padding:0!important;margin:0!important;border:0!important;border-radius:50%!important;box-sizing:border-box;display:flex!important;align-items:center;justify-content:center;text-decoration:none!important;cursor:pointer;will-change:transform;}
.fcb-main{z-index:20;background:var(--fcb-main-color,#21a85c)!important;color:#fff!important;box-shadow:0 7px 22px rgba(0,0,0,.16);transition:box-shadow .3s ease,filter .3s ease}
.fcb-main-icon{width:26px;height:26px;display:flex;align-items:center;justify-content:center;transition:transform .42s cubic-bezier(.34,1.56,.64,1),opacity .2s ease}.fcb-main-icon img{width:26px;height:26px;object-fit:contain;display:block}.fcb-main-icon-open{position:absolute;opacity:0;transform:scale(.55) rotate(-45deg)}.fcb-wrap.is-open .fcb-main-icon-closed{opacity:0;transform:scale(.55) rotate(45deg)}.fcb-wrap.is-open .fcb-main-icon-open{opacity:1;transform:scale(1) rotate(0)}
.fcb-plus,.fcb-close-icon{position:relative;width:20px;height:20px;display:block}.fcb-plus:before,.fcb-plus:after,.fcb-close-icon:before,.fcb-close-icon:after{content:"";position:absolute;left:50%;top:50%;width:18px;height:3px;border-radius:3px;background:#fff;transform:translate(-50%,-50%)}.fcb-plus:after{transform:translate(-50%,-50%) rotate(90deg)}.fcb-close-icon:before{transform:translate(-50%,-50%) rotate(45deg)}.fcb-close-icon:after{transform:translate(-50%,-50%) rotate(-45deg)}
.fcb-item{opacity:0;pointer-events:none;transform:translate3d(0,10px,0) scale(.45);background:var(--fcb-color)!important;color:#fff!important;box-shadow:0 7px 22px rgba(0,0,0,.14);transition:transform .62s cubic-bezier(.22,1,.36,1),opacity .28s ease,box-shadow .35s ease,filter .35s ease;transition-delay:var(--fcb-delay,0ms)}
.fcb-item:nth-child(1){--fcb-x:0px;--fcb-y:-72px}.fcb-item:nth-child(2){--fcb-x:0px;--fcb-y:-144px}.fcb-item:nth-child(3){--fcb-x:0px;--fcb-y:-216px}.fcb-item:nth-child(4){--fcb-x:0px;--fcb-y:-288px}.fcb-item:nth-child(5){--fcb-x:0px;--fcb-y:-360px}.fcb-item:nth-child(6){--fcb-x:0px;--fcb-y:-432px}
.fcb-wrap.is-open .fcb-item{opacity:1;pointer-events:auto;transform:translate3d(var(--fcb-x),var(--fcb-y),0) scale(1)}
.fcb-icon{width:28px;height:28px;display:flex;align-items:center;justify-content:center;color:#fff}.fcb-icon svg{width:25px;height:25px;fill:currentColor;display:block}.fcb-custom-icon{width:27px;height:27px;object-fit:contain;display:block}.fcb-letter{font-size:26px;line-height:1;font-weight:800;font-family:Arial,sans-serif}.fcb-facebook-letter{font-family:Arial,sans-serif;font-size:31px;line-height:30px}.fcb-zalo-letter{font-size:25px}
.fcb-item:after,.fcb-main:after{content:attr(data-label);position:absolute;right:68px;top:50%;transform:translateY(-50%);background:#111827;color:#fff;padding:7px 10px;border-radius:7px;font-size:12px;line-height:1;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .22s ease}.fcb-main:after{right:68px}.fcb-item:hover:after,.fcb-main:hover:after{opacity:1}
.fcb-main::before,.fcb-item::before{content:"";position:absolute;inset:-3px;border-radius:50%;border:2px solid currentColor;pointer-events:none;opacity:0;z-index:-1;animation:fcb-ripple 2.8s cubic-bezier(.2,.65,.35,1) infinite}.fcb-main::before{color:var(--fcb-main-color,#21a85c)}.fcb-item::before{color:var(--fcb-color,#21a85c);animation-delay:calc(var(--fcb-delay,0ms) + .15s)}
.fcb-main{animation:fcb-breathe 3.2s ease-in-out infinite}
@keyframes fcb-breathe{0%,100%{box-shadow:0 7px 22px rgba(0,0,0,.16);filter:brightness(1)}50%{box-shadow:0 10px 28px rgba(0,0,0,.22);filter:brightness(1.035)}}
@keyframes fcb-ripple{0%{transform:scale(.94);opacity:.55}70%{transform:scale(1.42);opacity:0}100%{transform:scale(1.42);opacity:0}}
.fcb-wrap.is-open .fcb-item{animation:fcb-float 3.6s ease-in-out infinite;animation-delay:calc(var(--fcb-delay,0ms) + .8s)}
@keyframes fcb-float{0%,100%{filter:brightness(1);box-shadow:0 7px 22px rgba(0,0,0,.14)}50%{filter:brightness(1.035);box-shadow:0 10px 27px rgba(0,0,0,.20)}}
.fcb-mode-always .fcb-items{display:flex;flex-direction:column;gap:10px;align-items:flex-end;justify-content:flex-end}.fcb-mode-always .fcb-item{position:relative;right:auto;bottom:auto;opacity:1!important;pointer-events:auto;transform:none!important;flex:0 0 auto;animation:fcb-always-breathe 3.8s ease-in-out infinite!important}.fcb-mode-always .fcb-item:nth-child(1){animation-delay:0s!important}.fcb-mode-always .fcb-item:nth-child(2){animation-delay:.55s!important}.fcb-mode-always .fcb-item:nth-child(3){animation-delay:1.1s!important}.fcb-mode-always .fcb-item:nth-child(4){animation-delay:1.65s!important}.fcb-mode-always .fcb-item:nth-child(5){animation-delay:2.2s!important}.fcb-mode-always .fcb-item:nth-child(6){animation-delay:2.75s!important}
@keyframes fcb-always-breathe{0%,100%{filter:brightness(1);box-shadow:0 7px 22px rgba(0,0,0,.14)}50%{filter:brightness(1.04);box-shadow:0 10px 27px rgba(0,0,0,.20)}}
.fcb-mode-always .fcb-main{display:none!important}.fcb-item:hover,.fcb-main:hover{filter:brightness(1.08);box-shadow:0 12px 30px rgba(0,0,0,.26)!important}.fcb-mode-always .fcb-item:hover{transform:scale(1.06)!important}
@media(max-width:767px){.fcb-wrap{right:16px;bottom:16px}.fcb-main,.fcb-item{width:54px!important;height:54px!important;min-width:54px!important;min-height:54px!important}.fcb-item:nth-child(1){--fcb-y:-66px}.fcb-item:nth-child(2){--fcb-y:-132px}.fcb-item:nth-child(3){--fcb-y:-198px}.fcb-item:nth-child(4){--fcb-y:-264px}.fcb-item:nth-child(5){--fcb-y:-330px}.fcb-item:nth-child(6){--fcb-y:-396px}.fcb-mode-always .fcb-items{gap:8px}}
@media(prefers-reduced-motion:reduce){.fcb-main,.fcb-item,.fcb-main::before,.fcb-item::before,.fcb-main-icon{animation:none!important;transition:none!important}}