.board-shell{background:#e7eef5;flex-direction:column;height:100vh;min-height:0;display:flex;overflow:hidden}.board-flash{color:#9b2c2c;background:#fff1f0;flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;margin:0;padding:8px 20px;display:flex}