.hotline-float {
  position: fixed;
  bottom: 90px;
  left: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hotline-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px 6px 6px;
  border-radius: 40px;
  text-decoration: none !important;
  color: #fff !important;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.3;
  box-shadow: 0 4px 15px rgba(0, 0, 0, .2);
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
}

.hotline-btn:hover,
.hotline-btn:focus-visible {
  transform: scale(1.05);
  box-shadow: 0 6px 25px rgba(0, 0, 0, .3);
  color: #fff !important;
}

.hotline-btn:focus-visible,
#sangiaodienptvn-contact-footer > a:focus-visible {
  outline: 3px solid #ffbf47;
  outline-offset: 3px;
}

.hotline-red {
  background: linear-gradient(135deg, #e53935, #c62828);
}

.hotline-blue {
  background: linear-gradient(135deg, #039be5, #0277bd);
}

.hotline-zalo {
  background: linear-gradient(135deg, #0068ff, #0052cc);
}

.hotline-icon {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hotline-icon i {
  font-size: 18px;
  color: #fff;
  z-index: 2;
  position: relative;
}

.hotline-icon-zalo img {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  z-index: 2;
  position: relative;
}

.hotline-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .6);
  animation: hotline-pulse 1.8s ease-out infinite;
}

.hotline-pulse-2 {
  animation-delay: .6s;
}

.hotline-number {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .5px;
  white-space: nowrap;
}

#sangiaodienptvn-contact-footer-outer {
  position: fixed;
  width: 100%;
  z-index: 99999;
  bottom: 0;
  left: 0;
  display: none;
}

#sangiaodienptvn-contact-footer::after {
  content: "";
  position: absolute;
  pointer-events: none;
  background-image: url("../../../uploads/2025/03/mb-footer-bg.svg");
  background-position: center top;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  height: 65px;
  width: 100%;
  left: 0;
  bottom: 0;
  z-index: -1;
}

#sangiaodienptvn-contact-footer {
  border-bottom: 1px solid #fff;
  display: flex;
  max-width: 1200px;
  margin: auto;
  position: relative;
  padding-top: 5px;
}

#sangiaodienptvn-contact-footer > a {
  display: block;
  flex: 1 1 20%;
  min-width: 0;
  text-align: center;
  padding: 3px 0 0;
  color: #313131;
  text-decoration: none;
}

#sangiaodienptvn-contact-footer span {
  display: block;
}

.sangiaodienptvn-contact-footer-btn-label {
  padding: 0 2px;
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 700;
}

#sangiaodienptvn-contact-footer > a > img {
  display: inline-block;
  height: 30px;
  width: 30px;
  object-fit: contain;
}

#sangiaodienptvn-contact-footer-btn-center {
  position: relative;
  background: transparent !important;
}

#sangiaodienptvn-contact-footer-btn-center .sangiaodienptvn-contact-footer-btn-label {
  position: absolute;
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
}

#sangiaodienptvn-contact-footer-btn-center .sangiaodienptvn-contact-footer-btn-label > span {
  padding: 0 8px;
  background-image: linear-gradient(92.83deg, #0e68c8 0, #02a4a5 100%);
  border-radius: 30px;
  color: #fff;
  display: inline-block;
}

.sangiaodienptvn-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: 0 -3px 10px rgba(0, 0, 0, .15);
  border: 2px solid #fff;
}

.sangiaodienptvn-contact-footer-btn-center-icon img {
  width: 20px;
  height: 20px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.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;
  animation: hotline-zoom 1.3s infinite;
}

@keyframes hotline-pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: .8;
  }
  100% {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}

@keyframes hotline-zoom {
  70% {
    box-shadow: 0 0 0 15px transparent;
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

@media only screen and (max-width: 850px) {
  #sangiaodienptvn-contact-footer-outer {
    display: block;
  }

  .hotline-zalo {
    display: none;
  }

  .hotline-float {
    bottom: 75px;
    left: 8px;
    gap: 8px;
  }

  .hotline-btn {
    padding: 4px 12px 4px 4px;
    font-size: 13px;
  }

  .hotline-icon,
  .hotline-pulse {
    width: 32px;
    height: 32px;
  }

  .hotline-icon i,
  .hotline-number {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hotline-btn {
    transition: none;
  }

  .hotline-pulse,
  .phone-vr-circle-fill {
    animation: none;
  }
}