/* 剧集树表（对应 ParseTreeView） */

.tree-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.tree-table th {
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-bottom: 1px solid var(--stroke);
  background: var(--subtle-bg);
  user-select: none;
  white-space: nowrap;
}

.tree-table td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--stroke);
  font-size: 13px;
  vertical-align: middle;
}

.tree-table tr:last-child td { border-bottom: none; }

.tree-table tbody tr:hover { background: var(--subtle-hover); }

.tree-table tr.row-node td { font-weight: 600; }

.tree-table tr.row-leaf .col-title { font-weight: 400; }

.col-number { width: 120px; }
.col-title { width: auto; }
.col-badge { width: 90px; }
.col-duration { width: 80px; font-variant-numeric: tabular-nums; }
.col-time { width: 110px; color: var(--text-secondary); font-variant-numeric: tabular-nums; }

.title-cell {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.title-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 展开箭头 */
.expander {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: none;
  background: transparent;
  border-radius: 3px;
  cursor: pointer;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 120ms;
}

.expander:hover { background: var(--subtle-hover); }
.expander.open { transform: rotate(90deg); }
.expander.placeholder { visibility: hidden; }

/* 三态复选框 */
.check {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  border: 1px solid var(--stroke-strong);
  border-radius: 3px;
  background: var(--card-solid);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: transparent;
  transition: background 80ms, border-color 80ms;
}

.check:hover { border-color: var(--accent); }

.check.checked {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.check.partial {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.check svg { width: 12px; height: 12px; }

.number-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}

.link-target-tag {
  color: var(--accent);
  font-size: 11px;
  margin-left: 4px;
}

.empty-tip {
  text-align: center;
  color: var(--text-secondary);
  padding: 48px 0;
  font-size: 13px;
}