.phuyu-chart {
    width: 100%;
    margin: auto;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
    color: #111827;
    background: #fff;
}

.phuyu-chart,
.phuyu-chart * {
    box-sizing: border-box;
}

.phuyu-chart-head {
    padding-top: 0px;
    margin-bottom: 10px;
}

.phuyu-chart-title {
    font-size: var(--phuyu-title-size, 14px);
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: 0;
    color: #173D7A;
}

.phuyu-chart-subtitle {
    margin-top: 3px;
    font-size: var(--phuyu-subtitle-size, 10px);
    line-height: 1.35;
    color: #4B5563;
}

.phuyu-chart-canvas-wrap {
    position: relative;
    width: 100%;
    height: var(--phuyu-chart-height, 360px);
    min-height: 220px;
}

.phuyu-chart-canvas {
    width: 100% !important;
    height: 100% !important;
}

.phuyu-chart-footer {
    margin-top: 8px;
    padding: 8px 0 8px;
}

.phuyu-chart-note {
    margin-bottom: 10px;
    font-size: var(--phuyu-footer-size, 9px);
    line-height: 1.4;
    color: #6B7280;
    border-bottom: 1px solid #ccc;
}

.phuyu-chart-credits {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 20px;
    font-size: var(--phuyu-footer-size, 9px);
    line-height: 1.35;
    color: #1F2937;
}

.phuyu-chart-credits strong {
    font-weight: 700;
}

.phuyu-chart-empty,
.phuyu-chart-error {
    padding: 14px;
    border: 1px solid #E5E7EB;
    background: #F9FAFB;
    font-size: 13px;
}

.phuyu-chart-a11y {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

@media (max-width: 640px) {
    .phuyu-chart {
        margin: 18px auto;
    }

    .phuyu-chart-canvas-wrap {
        height: var(--phuyu-chart-mobile-height, 340px);
    }

    .phuyu-chart-credits {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}