/* 图表容器样式 */
.chart-container {
    position: relative;
    width: 100%;
    height: 300px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.chart-container.large {
    height: 400px;
}

.chart-container.small {
    height: 200px;
}

/* 图表标题 */
.chart-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chart-title i {
    color: #2657FD;
    margin-right: 8px;
}

.chart-subtitle {
    font-size: 0.875rem;
    color: #9CA3AF;
    margin-bottom: 20px;
}

/* 图表选项按钮 */
.chart-options {
    display: flex;
    gap: 8px;
}

.chart-option-btn {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #9CA3AF;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chart-option-btn:hover,
.chart-option-btn.active {
    background: rgba(38, 87, 253, 0.2);
    border-color: rgba(38, 87, 253, 0.3);
    color: #ffffff;
}

/* 图表加载状态 */
.chart-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    flex-direction: column;
    gap: 16px;
}

.chart-loading .loading-spinner {
    width: 32px;
    height: 32px;
}

.chart-loading-text {
    color: #9CA3AF;
    font-size: 0.875rem;
}

/* 图表数据为空状态 */
.chart-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    flex-direction: column;
    gap: 12px;
    color: #9CA3AF;
}

.chart-empty i {
    font-size: 2rem;
    color: #4B5563;
}

.chart-empty-text {
    font-size: 0.875rem;
}

/* 图表图例自定义 */
.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: #9CA3AF;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

/* 统计卡片网格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(38, 87, 253, 0.3);
    transform: translateY(-2px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #2657FD, #64B5F6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.25rem;
    color: #ffffff;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 4px;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: #9CA3AF;
    margin-bottom: 8px;
}

.stat-trend {
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.stat-trend.up {
    color: #10B981;
}

.stat-trend.down {
    color: #EF4444;
}

.stat-trend i {
    font-size: 0.75rem;
}

/* 图表工具栏 */
.chart-toolbar {
    display: flex;
    align-items: center;
    justify-content: between;
    margin-bottom: 16px;
    gap: 12px;
}

.chart-period-selector {
    display: flex;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 4px;
    gap: 2px;
}

.period-btn {
    padding: 6px 12px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: #9CA3AF;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.period-btn:hover,
.period-btn.active {
    background: #2657FD;
    color: #ffffff;
}

.chart-export-btn {
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #9CA3AF;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: auto;
}

.chart-export-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

/* 响应式图表 */
@media (max-width: 768px) {
    .chart-container {
        height: 250px;
        padding: 12px;
    }
    
    .chart-container.large {
        height: 300px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 12px;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .chart-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .chart-export-btn {
        margin-left: 0;
        margin-top: 8px;
    }
}

/* 图表动画 */
.chart-container canvas {
    animation: chartFadeIn 0.8s ease-out;
}

@keyframes chartFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 实时数据指示器 */
.realtime-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: #10B981;
    margin-bottom: 12px;
}

.realtime-dot {
    width: 6px;
    height: 6px;
    background: #10B981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* 图表比较模式 */
.chart-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 768px) {
    .chart-comparison {
        grid-template-columns: 1fr;
    }
}