.site-comment-toast {
    position: fixed;
    z-index: 99999;
    top: 50%;
    left: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-width: 140px;
    max-width: calc(100vw - 32px);
    min-height: 36px;
    padding: 10px 16px;
    color: #fff;
    background: rgba(0, 0, 0, .5);
    border-radius: 6px;
    transform: translate(-50%, -50%);
    pointer-events: none;
    visibility: hidden;
    opacity: 0;
    transition: opacity .2s ease, visibility .2s ease;
}

.site-comment-toast.is-visible {
    visibility: visible;
    opacity: 1;
}

.site-comment-toast__text {
    margin: 0;
    font-family: 'PingFang SC', 'PingFang SC Regular', 'Microsoft YaHei', sans-serif;
    font-size: 12px;
    font-weight: 400;
    line-height: 16px;
    text-align: center;
}

@media (min-width: 768px) {
    .site-comment-toast {
        min-width: 192px;
        min-height: 56px;
        padding: 16px 24px;
        border-radius: 12px;
    }

    .site-comment-toast__text {
        font-size: 16px;
        line-height: 24px;
        white-space: nowrap;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-comment-toast {
        transition: none;
    }
}