/* 科技风格视频背景 */
.tech-video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: #0a0a1a;
}

.tech-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.tech-canvas.active {
    opacity: 1;
}

/* 视频指示器 */
.video-indicator {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    gap: 10px;
    z-index: 1000;
}

.video-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-dot.active {
    background: #667eea;
    border-color: #667eea;
    box-shadow: 0 0 15px rgba(102, 126, 234, 0.6);
}

.video-dot:hover {
    transform: scale(1.2);
    background: rgba(255, 255, 255, 0.5);
}

/* 响应式 */
@media (max-width: 768px) {
    .video-indicator {
        bottom: 20px;
        right: 20px;
    }
    
    .video-dot {
        width: 10px;
        height: 10px;
    }
}