/* 图表容器样式 */
.chart-container {
    width: 100%;
    height: 300px;
    margin: 16px 0;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    background-color: white;
    transition: all 0.3s ease;
}

/* 图表控制区域样式 */
.chart-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    margin-bottom: 8px;
}

/* 图表类型选择器样式 */
.chart-type-selector {
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid #ccc;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-size: 14px;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23333" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/><path d="M0 0h24v24H0z" fill="none"/></svg>');
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
    width: 85px;
}

.chart-type-selector:hover {
    border-color: #999;
}

.chart-type-selector:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}