.ac-ann-bar {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px; margin-bottom: 16px;
    background: var(--bg-card); border: 1px solid var(--border-primary);
    border-radius: var(--border-radius); box-shadow: var(--shadow-sm);
    color: var(--text-primary); font-size: 14px; line-height: 1.5;
    position: relative; overflow: hidden;
}
.ac-ann-icon { flex-shrink: 0; width: 18px; height: 18px; color: var(--theme-color); display: inline-flex; }
.ac-ann-icon svg { width: 100%; height: 100%; }
.ac-ann-viewport { flex: 1; min-width: 0; height: 21px; position: relative; overflow: hidden; }

.ac-ann-bar.is-rotate .ac-ann-item {
    position: absolute; inset: 0; display: flex; align-items: center;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    opacity: 0; transform: translateY(10px); transition: opacity .35s ease, transform .35s ease; pointer-events: none;
}
.ac-ann-bar.is-rotate .ac-ann-item.is-active { opacity: 1; transform: translateY(0); pointer-events: auto; }

.ac-ann-bar.is-marquee .ac-ann-viewport { height: auto; }
.ac-ann-track { 
    display: inline-flex; 
    align-items: center; 
    white-space: nowrap; 
    animation: ac-ann-marquee 20s linear infinite; 
    will-change: transform;
}
.ac-ann-bar.is-marquee .ac-ann-item { flex-shrink: 0; padding-right: 80px; }
.ac-ann-bar:hover .ac-ann-track { animation-play-state: paused; }

@keyframes ac-ann-marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

.ac-ann-item a { color: var(--color-link); text-decoration: none; transition: color .2s ease; }
.ac-ann-item a:hover { color: var(--color-link-hover); text-decoration: underline; }

.ac-ann-close {
    flex-shrink: 0; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center;
    background: transparent; border: none; border-radius: var(--border-radius-sm);
    color: var(--text-muted); font-size: 18px; cursor: pointer; transition: background .2s ease, color .2s ease;
}
.ac-ann-close:hover { background: var(--bg-hover); color: var(--text-primary); }