/* 标签云容器 */
#tagcloud-container {
    position: fixed;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80vmin;
    height: 80vmin;
    max-width: 700px;
    max-height: 700px;
    z-index: 5;
}

@media (max-width: 768px) {
    #tagcloud-container {
        width: 90vmin;
        height: 90vmin;
    }
}

/* SVG标签文本元素 */
#tagcloud-container svg text {
    transition: fill 0.2s ease;
}

/* SVG高亮矩形背景 */
#tagcloud-container svg .highlight-rect {
    animation: pulse-svg 1s infinite;
}

/* SVG专用脉冲动画 - 针对filter和stroke */
@keyframes pulse-svg {
    0%, 100% {
        filter: url(#textShadow) drop-shadow(0 0 20px rgba(255, 215, 0, 0.6));
    }
    50% {
        filter: url(#textShadow) drop-shadow(0 0 30px rgba(255, 215, 0, 0.9));
    }
}

/* 标签提示框 */
.tag-tooltip {
    position: fixed;
    max-width: 300px;
    background: rgba(0, 20, 40, 0.95);
    color: #fff;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.5;
    box-shadow: 0 4px 20px rgba(0, 255, 255, 0.3);
    border: 1px solid rgba(0, 255, 255, 0.5);
    z-index: 2000;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tag-tooltip.show {
    opacity: 1;
}

.tag-tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 20px;
    width: 12px;
    height: 12px;
    background: rgba(0, 20, 40, 0.95);
    border-top: 1px solid rgba(0, 255, 255, 0.5);
    border-left: 1px solid rgba(0, 255, 255, 0.5);
    transform: rotate(45deg);
}

/* 响应式适配 */
@media (max-width: 768px) {
    .tag-tooltip {
        max-width: 250px;
        font-size: 12px;
        padding: 10px 14px;
    }
}