.floating-contact-group {
    position: fixed;
    bottom: 30px;
    right: 25px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}
.floating-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: var(--radius);
    color: #ffffff;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    transition: var(--transition);
    position: relative;
    border: none;
    cursor: pointer;
}
.floating-btn .floating-label {
    position: absolute;
    right: 60px;
    background: #0f172a;
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    border: 1px solid var(--accent);
}
.floating-btn:hover .floating-label {
    opacity: 1;
    right: 65px;
}

.floating-alert {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    font-size: 20px;
}
.floating-alert:hover {
    transform: scale(1.08);
}
.floating-zalo {
    background: #0068ff;
    font-weight: 700;
    font-size: 13px;
}
.floating-zalo .zalo-icon-badge {
    font-family: var(--font-main);
    font-weight: 800;
    letter-spacing: -0.5px;
}
.floating-zalo:hover {
    background: #0054cc;
    transform: scale(1.08);
}
.floating-phone {
    background: #059669;
    font-size: 20px;
}
.floating-phone:hover {
    background: #047857;
    transform: scale(1.08);
}
.back-to-top {
    background: #1e293b;
    font-size: 18px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--accent);
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(234, 88, 12, 0.7); }
    70% { box-shadow: 0 0 0 14px rgba(234, 88, 12, 0); }
    100% { box-shadow: 0 0 0 0 rgba(234, 88, 12, 0); }
}
.floating-phone.pulse {
    animation: pulseGlow 2s infinite;
}

@media (max-width: 768px) {
    .floating-contact-group { bottom: 20px; right: 16px; gap: 10px; }
    .floating-btn { width: 44px; height: 44px; font-size: 16px; }
    .floating-btn .floating-label { display: none; }
}