.card-header {
    font-weight: 600;
    font-size: 16px;
    color: #303133;
}

.filter-bar {
    background: #ffffff;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.05);
}

.status-display, .mode-display {
    text-align: center;
    padding: 20px 0;
}

.battery-display {
    padding: 10px 0;
}

.data-item {
    text-align: center;
    padding: 20px 0;
    background: #f5f7fa;
    border-radius: 8px;
}

.data-label {
    font-size: 14px;
    color: #909399;
    margin-bottom: 8px;
}

.data-value {
    font-size: 24px;
    font-weight: 600;
    color: #303133;
}

.health-indicators {
    padding: 10px 0;
}

.health-score {
    margin-bottom: 15px;
    font-size: 16px;
}

.health-score .score-value {
    font-size: 28px;
    font-weight: 600;
}

.health-issues {
    font-size: 14px;
}

.stat-card {
    cursor: pointer;
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.stat-card .stat-label {
    font-size: 14px;
    color: #606266;
    text-align: center;
}

.video-container {
    position: relative;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}

.video-placeholder {
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.video-icon {
    margin-bottom: 20px;
}

.video-text {
    color: #909399;
    font-size: 16px;
}

.video-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.device-info-bar {
    padding: 10px 0;
    font-size: 14px;
    color: #606266;
}

.alarm-item {
    display: flex;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.alarm-item:last-child {
    border-bottom: none;
}

.alarm-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 6px;
    margin-right: 12px;
    flex-shrink: 0;
}

.alarm-content {
    flex: 1;
}

.alarm-title {
    font-size: 14px;
    color: #303133;
    margin-bottom: 4px;
}

.alarm-time {
    font-size: 12px;
    color: #909399;
}

.chart-placeholder {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f7fa;
    border-radius: 4px;
}

.latest-alarms {
    max-height: 300px;
    overflow-y: auto;
}