{% macro sentiment_badge(sentiment) %}
  {% set config = {
    "positive": ("正向", "bg-success"),
    "neutral": ("中性", "bg-warning text-dark"),
    "negative": ("负向", "bg-danger"),
    "unknown": ("未知", "bg-secondary"),
  } %}
  {% set label, style = config.get(sentiment, ("未知", "bg-secondary")) %}
  <span class="badge {{ style }}">{{ label }}</span>
{% endmacro %}