.sb-ann {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(16px);
    max-width: 600px;
    width: 90%;
    background: var(--ann-bg, #1e40af);
    color: var(--ann-color, #ffffff);
    border-radius: 12px;
    padding: 16px 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    z-index: 9990;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.sb-ann.sb-ann-show {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.sb-ann-inner {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.sb-ann-text {
    flex: 1;
    font-size: 14px;
    margin: 0;
    line-height: 1.5;
}

.sb-ann-link {
    background: rgba(255, 255, 255, 0.2);
    color: inherit;
    padding: 5px 14px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    transition: background 0.2s ease;
}

.sb-ann-link:hover {
    background: rgba(255, 255, 255, 0.35);
    color: inherit;
    text-decoration: none;
}

.sb-ann-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    opacity: 0.7;
    padding: 0 4px;
    margin-left: auto;
    transition: opacity 0.2s ease;
    flex-shrink: 0;
}

.sb-ann-close:hover {
    opacity: 1;
}

@media (max-width: 600px) {
    .sb-ann {
        bottom: 0;
        border-radius: 12px 12px 0 0;
        width: 100%;
        max-width: 100%;
        left: 0;
        transform: translateY(16px);
    }

    .sb-ann.sb-ann-show {
        transform: translateY(0);
    }
}