bytedance-flowgram/apps/demo-free-layout/src/components/testrun/node-status-bar/viewer/index.css

.node-status-data-structure-viewer {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    background: #fafafa;
    border-radius: 6px;
    padding: 12px 12px 12px 0;
    margin: 12px;
    border: 1px solid #e1e4e8;
    overflow: hidden;
}

.tree-node {
    margin: 2px 0;
}

.tree-node-header {
    display: flex;
    align-items: flex-start;
    gap: 4px;
    min-height: 20px;
    padding: 2px 0;
    border-radius: 3px;
    transition: background-color 0.15s ease;
}

.tree-node-header:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

.expand-button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 10px;
    color: #666;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    transition: all 0.15s ease;
    padding: 0;
    margin: 0;
}

.expand-button:hover {
    background-color: rgba(0, 0, 0, 0.1);
    color: #333;
}

.expand-button.expanded {
    transform: rotate(90deg);
}

.expand-button.collapsed {
    transform: rotate(0deg);
}

.expand-placeholder {
    width: 16px;
    height: 16px;
    display: inline-block;
    flex-shrink: 0;
}

.node-label {
    color: #0969da;
    font-weight: 500;
    cursor: pointer;
    user-select: auto;
    margin-right: 4px;
}

.node-label:hover {
    text-decoration: underline;
}

.node-value {
    margin-left: 4px;
}

.primitive-value-quote {
    color: #8f8f8f;
}

.primitive-value {
    cursor: pointer;
    user-select: all;
    padding: 1px 3px;
    border-radius: 3px;
    transition: background-color 0.15s ease;
}

.primitive-value:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.primitive-value.string {
    color: #032f62;
    background-color: rgba(3, 47, 98, 0.05);
}

.primitive-value.number {
    color: #005cc5;
    background-color: rgba(0, 92, 197, 0.05);
}

.primitive-value.boolean {
    color: #e36209;
    background-color: rgba(227, 98, 9, 0.05);
}

.primitive-value.null,
.primitive-value.undefined {
    color: #6a737d;
    font-style: italic;
    background-color: rgba(106, 115, 125, 0.05);
}

.tree-node-children {
    margin-left: 8px;
    padding-left: 8px;
    position: relative;
}

.tree-node-children::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: #e1e4e8;
}