.EO_E4a_board{align-items:stretch;gap:16px;min-width:0;height:clamp(360px,100dvh - 340px,800px);padding:16px 20px;display:flex;overflow-x:auto}.EO_E4a_column{border:1px solid var(--erp-line);background:var(--erp-surface);border-radius:8px;flex-direction:column;flex:0 0 300px;min-width:0;min-height:0;display:flex;overflow:hidden}.EO_E4a_heading{border-bottom:2px solid var(--erp-brand);min-height:48px;color:var(--erp-ink);flex-shrink:0;align-items:center;gap:10px;padding:8px 12px;display:flex}.EO_E4a_heading h3{flex:1;margin:0;font-size:13px;font-weight:600}.EO_E4a_heading>span{color:var(--erp-muted);font-size:12px}.EO_E4a_scroll{overscroll-behavior-y:contain;scrollbar-gutter:stable;background:var(--erp-canvas);flex:1;min-height:0;padding:12px;overflow-y:auto}.EO_E4a_scroll:focus-visible{outline:2px solid var(--erp-brand);outline-offset:-2px}.EO_E4a_item{margin-block-end:10px}.EO_E4a_item>:is(button,article){margin-block-end:0}.EO_E4a_message{color:var(--erp-muted);text-align:center;padding:10px 0;font-size:12px}.EO_E4a_more{width:100%;min-height:40px}.EO_E4a_columnLoader{color:var(--erp-muted);flex:none;align-self:center;padding:12px;font-size:12px}@media (width<=640px){.EO_E4a_board{gap:12px;padding:12px}.EO_E4a_column{flex-basis:min(86vw,340px)}.EO_E4a_more{min-height:44px}}