.accordion {
    --bs-accordion-bg: transparent;
    --bs-accordion-border-color: transparent;
    --bs-accordion-border-radius: 0;
    --bs-accordion-inner-border-radius: 0;
    --bs-accordion-btn-padding-x: 0;
    --bs-accordion-btn-bg: transparent;
    --bs-accordion-btn-focus-border-color: transparent;
    --bs-accordion-active-bg: transparent;
}