@media only screen and (max-width:992px) {
    .header {position: static}
    .layui-container{
        margin-top: 6px;
    }
}
.text-light
{
    color: #a1a7b7;
}
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(37, 117, 252, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}
#back-to-top.show {
    opacity: 1;
    visibility: visible;
}
#back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 117, 252, 0.6);
}
@media (max-width: 768px) {
    #back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

.toast-center {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /*min-width: 300px;*/
    max-width: 90%;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 9999;
    animation: toastFade 0.3s ease-out;
}
@keyframes toastFade {
    from {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}
.toast-icon {
    font-size: 1.5em;
    flex-shrink: 0;
}
.toast-success .toast-icon {
    color: #28a745;
}
.toast-error .toast-icon {
    color: #dc3545;
}
.toast-message {
    flex: 1;
    line-height: 1.5;
}