.contact-fab-container{position:fixed;bottom:20px;right:20px;z-index:10000}
.contact-fab-main-btn,.contact-fab-links a{width:55px;height:55px;border-radius:50%;text-align:center;line-height:55px;color:white;box-shadow:0 4px 10px rgba(0,0,0,0.3);cursor:pointer;transition:all 0.3s ease;margin-top:10px}
.contact-fab-main-btn{background-color:#5a8d5c;font-size:24px;position:relative}
.contact-fab-main-btn:hover{background-color:#4a754c}
.contact-fab-main-btn.open{transform:rotate(45deg);background-color:#d9534f}
.contact-fab-links{display:flex;flex-direction:column;align-items:center;transition:opacity 0.3s ease,transform 0.3s ease;position:absolute;bottom:0;right:0;opacity:0;pointer-events:none;transform:translateY(0)}
.contact-fab-container.active .contact-fab-links{opacity:1;pointer-events:auto}
.contact-fab-container.active .contact-fab-links a:nth-child(1){transform:translateY(-1px)}
.contact-fab-container.active .contact-fab-links a:nth-child(2){transform:translateY(-1px)}
.contact-fab-container.active .contact-fab-links a:nth-child(3){transform:translateY(-5px)}
.btn-call{background-color:#5a8d5c}
.btn-messenger{background-color:#ffffff2b}
.btn-zalo{background-color:#ffffff}