.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.abs-full {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.safe-top {
    padding-top: env(safe-area-inset-top);
}

.safe-bottom {
    padding-bottom: env(safe-area-inset-bottom);
}

.no-scrollbar::-webkit-scrollbar {
    display: none;
}

/* Toast 通用样式 */
.toast-wrap {
    position: fixed;
    top: 30%;
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
    pointer-events: none;
    z-index: 9999;
}

.toast {
    background: rgba(0, 0, 0, 0.78);
    color: #fff;
    padding: 0.18rem 0.36rem;
    border-radius: 0.1rem;
    font-size: 0.28rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 0.1rem 0.3rem rgba(0, 0, 0, 0.6);
    animation: toastIn 0.25s ease-out, toastOut 0.3s ease-in 1.6s forwards;
    max-width: 80%;
    text-align: center;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateY(-0.15rem) scale(0.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to   { opacity: 0; transform: translateY(-0.1rem) scale(0.98); }
}