body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }

.board-container { min-height: calc(100vh - 200px); }
.task-card { cursor: grab; }
.task-card:active { cursor: grabbing; }
.task-ghost { opacity: 0.4; }
.board-column { min-height: 400px; }
.board-column .card-body { overflow-y: auto; max-height: 70vh; }
.empty-hint { border: 2px dashed #dee2e6; border-radius: 0.375rem; }