:root{--bch-zindex:100;--bch-bottom-space:20px;--bch-horizontal-space:20px;--bch-button-size:48px;--bch-svg-size:36px;--bch-item-space:1em;--bch-border-radius:12px;--bch-color-border:#fefefe;--bch-color-white:#fff;--bch-color-text:#fff;--bch-bgcolor-text:#777;--bch-bgcolor-dark:#333;--bch-bgcolor-zalo:#0091ff;--bch-bgcolor-messenger:#1877f2;--bch-bgcolor-WhatsApp:#29a71a;--bch-bgcolor-phone:#ff6a00;--bch-bgcolor-button:#dc3545}.bch-block{position:fixed;bottom:var(--bch-bottom-space);z-index:var(--bch-zindex)}.bch-block *{box-sizing:border-box}.bch-block.position-left{left:var(--bch-bottom-space)}.bch-block.position-right{right:var(--bch-bottom-space)}.bch-block.position-left-center{bottom:50%;left:var(--bch-bottom-space)}.bch-block.position-right-center{bottom:50%;right:var(--bch-bottom-space)}.bch-block.position-left-center .bch-block__text,.bch-block.position-left .bch-block__text{margin-left:.5em}.bch-block.position-right-center .bch-block__text,.bch-block.position-right .bch-block__text{margin-right:.5em}.bch-block.position-left-center .bch-block__item,.bch-block.position-left .bch-block__item{justify-content:flex-start}.bch-block.position-right-center .bch-block__item,.bch-block.position-right .bch-block__item{justify-content:flex-end}.bch-block.position-right-center .bch-block__toggle-button,.bch-block.position-right .bch-block__toggle-button{align-self:flex-end}.bch-block.position-left-center .bch-block__url,.bch-block.position-left .bch-block__url{flex-direction:row-reverse}.bch-block.text-hover .bch-block__text{opacity:0;transform:translateY(4px);pointer-events:none;transition:transform .4s ease-in-out;will-change:transform}.bch-block.text-hover .bch-block__item:hover .bch-block__text{opacity:1;transform:translateY(0)}.bch-block__inner{display:flex;flex-direction:column}.bch-block__list{margin:0;padding:0;list-style:none;transition:transform .4s ease-in-out,opacity .4s ease-in-out}.bch-block__item,.bch-block__url{display:flex;align-items:center}.bch-block__url{text-decoration:none}.bch-block__item{margin-bottom:var(--bch-item-space)}.bch-block__item.is-messenger:hover .bch-block__text,.bch-block__item.is-messenger .bch-block__icon{background:var(--bch-bgcolor-messenger)}.bch-block__item.is-WhatsApp:hover .bch-block__text,.bch-block__item.is-WhatsApp .bch-block__icon{background:var(--bch-bgcolor-WhatsApp)}.bch-block__item.is-zalo:hover .bch-block__text,.bch-block__item.is-zalo .bch-block__icon{background:var(--bch-bgcolor-zalo)}.bch-block__item.is-phone:hover .bch-block__text,.bch-block__item.is-phone .bch-block__icon{background:var(--bch-bgcolor-phone)}.bch-block__text{display:inline-block;padding:4px 8px;background:var(--bch-bgcolor-text);color:var(--bch-color-text);font-size:13px;box-shadow:#63636333 0 2px 8px;border:2px solid var(--bch-color-border);border-radius:var(--bch-border-radius);user-select:none;pointer-events:none;transition:all .4s ease}.bch-block__icon{display:flex;align-items:center;justify-content:center;flex-direction:column;width:var(--bch-button-size);height:var(--bch-button-size);padding:6px;background:var(--bch-bgcolor-dark);animation:ring 1s linear infinite;border-radius:50%;border:3px solid var(--bch-bgcolor-white)}.bch-block__icon svg{width:var(--bch-svg-size);height:var(--bch-svg-size);fill:var(--bch-color-white)}.bch-block .bch-block__inner .bch-block__toggle-button{position:relative;display:inline-flex;align-items:center;justify-content:center;margin-top:.25em;width:48px;height:48px;background:var(--bch-bgcolor-dark);color:var(--bch-color-text);border:2px solid var(--bch-color-border);border-radius:50%;cursor:pointer;transition:all .5s ease;overflow:hidden}.bch-block__toggle-button svg{width:32px;height:32px;fill:var(--bch-color-white)}.bch-block__toggle-button span{position:absolute;top:4px;left:4px;width:36px;height:36px;z-index:1;pointer-events:none;transition:transform .5s ease-in-out}@keyframes ring{0%{transform:scaleZ(1)}10%,20%{transform:scale3d(.9,.9,.9) rotate3d(0,0,1,-3deg)}30%,50%,70%,90%{transform:scale3d(1.1,1.1,1.1) rotate3d(0,0,1,3deg)}40%,60%,80%{transform:scale3d(1.1,1.1,1.1) rotate3d(0,0,1,-3deg)}to{transform:scaleZ(1)}}.bch-block .open-icon{transform:translateY(150%)}.bch-block.is-hidden .open-icon{transform:translateY(0)}.bch-block.is-hidden .close-icon{transform:translateY(150%)}.bch-block__list{opacity:1;transform:translateY(0)}.bch-block.is-hidden .bch-block__list{opacity:0;transform:translateY(15px);pointer-events:none;transition:.5s ease-in-out}.bch-block.is-hidden .bch-block__toggle-button{background:var(--bch-bgcolor-button)}