.phongvt-contact { position: fixed; bottom: 20px; left: 20px; z-index: 99999; }
.phongvt-contact > a { border-radius: 20px; padding: 0 18px; color: #fff; display: block; margin-bottom: 6px; font-size: 15px; font-weight: 400; text-transform: none; line-height: 2.4; text-decoration: none; }
.phongvt-contact > .chat-zalo { background: #f58620; }
.phongvt-contact > .chat-face { background: #125c9e; }
.phongvt-contact > .hotline { background: #e82829 !important; }
.phongvt-contact > a:hover, .phongvt-contact > a:focus { color: #fff; filter: brightness(.95); }
#phongvt-contact-footer-outer { position: fixed; width: 100%; z-index: 100 !important; bottom: 0; display: none; }
#phongvt-contact-footer::after { content: ""; position: absolute; pointer-events: none; background-image: var(--ht-cta-background); background-color: unset; background-position: center top; background-repeat: no-repeat; background-size: 100%; height: 65px; width: 100%; left: 0; bottom: 0; z-index: -1; }
#phongvt-contact-footer { border-bottom: 15px solid #fff; display: flex; max-width: 1200px; margin: auto; position: relative; padding-top: 5px; }
#phongvt-contact-footer > a { position: relative; display: block; flex: 1; min-width: 0; text-align: center; padding: 11px 0 0; color: #313131; }
#phongvt-contact-footer span { display: block; }
#phongvt-contact-footer .phongvt-contact-footer-btn-label { padding: 0 2px; font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: bold; }
#phongvt-contact-footer > a img { height: 30px; width: 30px; object-fit: contain; }
#phongvt-contact-footer-btn-center { position: relative; background: transparent !important; }
#phongvt-contact-footer-btn-center .phongvt-contact-footer-btn-label { position: absolute; left: 50%; bottom: 2px; transform: translateX(-50%); }
#phongvt-contact-footer-btn-center .phongvt-contact-footer-btn-label > span { padding: 0 8px; background-image: linear-gradient(92.83deg, #0e68c8 0, #02a4a5 100%); border-radius: 30px; color: white; display: inline-block; }
.phongvt-contact-footer-btn-center-icon { left: 50%; position: absolute; transform: translateX(-50%); background-image: linear-gradient(92.83deg, #f90000 0, #950099 100%); width: 50px; height: 50px; border-radius: 50%; top: -28px; text-align: center; box-shadow: rgb(0 0 0 / 15%) 0 -3px 10px 0; border: 2px solid #fff; }
#phongvt-contact-footer .phongvt-contact-footer-btn-center-icon img { max-width: 20px; height: auto !important; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }
#phongvt-contact-footer .phone-vr-circle-fill { width: 50px; height: 50px; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); border-radius: 50%; box-shadow: 0 0 0 0 #0e68c8; border: 2px solid transparent; transition: all .5s; animation: ht-cta-zoom 1.3s infinite; }
@keyframes ht-cta-zoom { 0% { box-shadow: 0 0 0 0 #0e68c8; } 70% { box-shadow: 0 0 0 15px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
/* Keep the original breakpoints: both layouts appear from 550px to 850px. */
@media (max-width: 549px) { .phongvt-contact { display: none; } }
@media (max-width: 850px) { #phongvt-contact-footer-outer { display: block; } }
@media (prefers-reduced-motion: reduce) { #phongvt-contact-footer .phone-vr-circle-fill { animation: none; } }