* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #f5f6f8; color: #1d2129; font-size: 14px; line-height: 1.6;
}
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; background: #fff; border-bottom: 1px solid #e5e6eb;
}
.brand { font-size: 16px; font-weight: 600; }
.who { display: flex; align-items: center; gap: 8px; }
.who label { color: #86909c; font-size: 13px; }
select, input, textarea {
  border: 1px solid #d9d9d9; border-radius: 6px; padding: 6px 8px; font-size: 13px;
  background: #fff; color: #1d2129; font-family: inherit;
}
.badge { font-size: 12px; padding: 2px 8px; border-radius: 10px; background: #e8f3ff; color: #185fa5; }
.badge.admin { background: #fef3e6; color: #b76e00; }

.stats { display: flex; gap: 12px; padding: 16px 20px; }
.stat {
  flex: 1; background: #fff; border-radius: 10px; padding: 14px 18px; text-align: center;
  border: 1px solid #e5e6eb;
}
.stat .num { font-size: 26px; font-weight: 600; }
.stat.done .num { color: #2ba471; }
.stat.undone .num { color: #e54545; }
.stat.rate .num { color: #185fa5; }

.toolbar { display: flex; align-items: center; gap: 12px; padding: 0 20px 12px; flex-wrap: wrap; }
.filters { display: flex; gap: 8px; }
.btn {
  border: 1px solid #d9d9d9; background: #fff; color: #1d2129; border-radius: 6px;
  padding: 7px 14px; cursor: pointer; font-size: 13px;
}
.btn:hover { border-color: #185fa5; color: #185fa5; }
.btn.primary { background: #185fa5; border-color: #185fa5; color: #fff; }
.btn.primary:hover { background: #0c447c; color: #fff; }
.btn.ghost { background: #f2f3f5; }

.board { display: flex; gap: 16px; padding: 0 20px 30px; align-items: flex-start; }
.col { flex: 1; background: #fff; border-radius: 10px; border: 1px solid #e5e6eb; min-height: 200px; }
.col-h { padding: 12px 16px; font-size: 14px; border-bottom: 1px solid #f0f1f3; }
.col-h.undone { color: #e54545; }
.col-h.done { color: #2ba471; }
.col-h span { background: #f2f3f5; border-radius: 10px; padding: 1px 8px; font-size: 12px; color: #4e5969; }
.cards { padding: 12px; display: flex; flex-direction: column; gap: 10px; }

.card {
  border: 1px solid #e5e6eb; border-radius: 8px; padding: 12px; background: #fff;
  border-left: 4px solid #d9d9d9;
}
.card.p-高 { border-left-color: #e54545; }
.card.p-中 { border-left-color: #ff9a2e; }
.card.p-低 { border-left-color: #d9d9d9; }
.card.mine { background: #fffbe6; }
.card .title { font-weight: 600; margin-bottom: 4px; }
.card .meta { color: #86909c; font-size: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.card .desc { margin: 6px 0; color: #4e5969; font-size: 13px; }
.tag { display: inline-block; padding: 0 6px; border-radius: 4px; font-size: 12px; }
.tag.高 { background: #fde2e2; color: #e54545; }
.tag.中 { background: #fff0e0; color: #b76e00; }
.tag.低 { background: #f0f1f3; color: #4e5969; }
.card .actions { margin-top: 8px; display: flex; gap: 8px; }
.card.muted { opacity: 0.7; }

.modal-mask {
  position: fixed; inset: 0; background: rgba(0,0,0,0.35); display: flex;
  align-items: center; justify-content: center; z-index: 50;
}
.modal {
  background: #fff; border-radius: 12px; padding: 22px; width: 420px; max-width: 92vw;
  display: flex; flex-direction: column; gap: 8px;
}
.modal h3 { margin-bottom: 6px; }
.modal label { font-size: 13px; color: #4e5969; margin-top: 4px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }
.empty { color: #c9cdd4; text-align: center; padding: 24px 0; font-size: 13px; }