/* 🌟 韬略之道 · 人物谱系图样式 */

/* ---- 谱系图容器 ---- */
.lineage-wrapper {
  position: relative;
  overflow-x: auto;
  padding: 20px 0;
}

/* ---- 谱系图页面：容器更宽 ---- */
.lineage-wrapper {
  margin: 0 -10px;
}

@media (min-width: 1100px) {
  .lineage-wrapper {
    margin: 0 -60px;
  }
}

.lineage-chart {
  position: relative;
  padding: 20px 10px;
}

/* ---- 三栏布局 ---- */
.lineage-lanes {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 8px;
  position: relative;
  z-index: 2;
}

.lane {
  position: relative;
}

.lane-header {
  text-align: center;
  padding: 12px 8px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 2px;
  border-bottom: 2px solid;
  margin-bottom: 16px;
  border-radius: var(--radius) var(--radius) 0 0;
}

.lane-header.bingjia {
  color: var(--face-jin);
  border-color: var(--face-jin);
  background: linear-gradient(180deg, var(--face-jin-light) 0%, transparent 100%);
}

.lane-header.daoren {
  color: var(--face-bi);
  border-color: var(--face-bi);
  background: linear-gradient(180deg, var(--face-bi-light) 0%, transparent 100%);
}

.lane-header.crossover {
  color: var(--face-zhuan);
  border-color: var(--face-zhuan);
  background: linear-gradient(180deg, var(--face-zhuan-light) 0%, transparent 100%);
}

/* ---- 时代行 ---- */
.era-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 4px;
}

.era-label {
  font-size: 0.7rem;
  color: var(--ink-4);
  text-align: center;
  padding: 2px 0;
  font-weight: 600;
  letter-spacing: 1px;
  border-top: 1px dashed var(--ink-5);
  margin-top: 6px;
  padding-top: 6px;
}

.era-label:first-child {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

/* ---- 人物节点 ---- */
.person-node {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  margin: 2px 0;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
  background: var(--card-bg);
  border: 1px solid var(--ink-5);
  position: relative;
  z-index: 3;
  text-decoration: none;
  color: var(--text);
  min-height: 42px;
}

.person-node:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-hover);
}

.person-node:active {
  transform: translateX(2px);
}

/* 学校色标 */
.person-node.bingjia {
  border-left: 3px solid var(--face-jin);
}
.person-node.bingjia:hover {
  background: var(--face-jin-light);
}

.person-node.daoren {
  border-left: 3px solid var(--face-bi);
}
.person-node.daoren:hover {
  background: var(--face-bi-light);
}

.person-node.crossover {
  border-left: 3px solid var(--face-zhuan);
}
.person-node.crossover:hover {
  background: var(--face-zhuan-light);
}

/* 高亮态 */
.person-node.highlighted {
  transform: translateX(4px);
  box-shadow: 0 0 0 2px var(--accent), var(--shadow-hover);
  z-index: 10;
}
.person-node.bingjia.highlighted {
  box-shadow: 0 0 0 2px var(--face-jin), var(--shadow-hover);
}
.person-node.daoren.highlighted {
  box-shadow: 0 0 0 2px var(--face-bi), var(--shadow-hover);
}
.person-node.crossover.highlighted {
  box-shadow: 0 0 0 2px var(--face-zhuan), var(--shadow-hover);
}

/* 暗淡态（非关联节点） */
.person-node.dimmed {
  opacity: 0.25;
  filter: grayscale(0.7);
}

.person-node .node-name {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.person-node .node-era {
  font-size: 0.6rem;
  color: var(--ink-4);
  margin-left: auto;
  white-space: nowrap;
}

.person-node .node-icon {
  font-size: 1rem;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

/* ---- SVG 连线层 ---- */
.lineage-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.lineage-svg path.relation-line {
  fill: none;
  stroke-width: 1.5;
  opacity: 0.3;
  transition: opacity 0.3s ease, stroke-width 0.3s ease;
  stroke-linecap: round;
}

.lineage-svg path.relation-line.active {
  opacity: 0.7;
  stroke-width: 2.5;
}

.lineage-svg path.relation-line.bingjia-daoren {
  stroke: var(--ink-3);
  stroke-dasharray: 5 3;
}

.lineage-svg path.relation-line.in-school {
  stroke: var(--ink-2);
}

.lineage-svg path.relation-line.cross-school {
  stroke: var(--ink-4);
  stroke-dasharray: 4 4;
}

/* ---- 图例 ---- */
.lineage-legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  padding: 16px 0;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--ink-2);
}

.legend-line {
  width: 28px;
  height: 2px;
  border-radius: 1px;
}

.legend-line.solid { background: var(--ink-2); }
.legend-line.dashed { background: transparent; border-top: 2px dashed var(--ink-3); }
.legend-line.dotted { background: transparent; border-top: 2px dotted var(--ink-4); }

/* ---- 时代筛选 ---- */
.lineage-controls {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 12px 0;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.lineage-controls .era-filter-btn {
  padding: 4px 14px;
  border: 1px solid var(--ink-4);
  border-radius: 20px;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.2s ease;
  font-family: inherit;
}

.lineage-controls .era-filter-btn:hover {
  background: var(--tag-bg);
  border-color: var(--ink-3);
}

.lineage-controls .era-filter-btn.active {
  background: var(--ink-2);
  color: var(--paper);
  border-color: var(--ink-2);
}

/* ---- 简介区 ---- */
.lineage-intro {
  text-align: center;
  padding: 10px 0 0;
  color: var(--ink-3);
  font-size: 0.9rem;
  line-height: 1.7;
}

.lineage-intro strong {
  color: var(--ink-1);
}

/* ---- 交互提示 ---- */
.interact-hint {
  text-align: center;
  font-size: 0.75rem;
  color: var(--ink-4);
  padding: 6px 0 2px;
  margin-top: -8px;
}

/* ---- 空列占位 ---- */
.lane-empty {
  color: var(--ink-5);
  font-size: 0.85rem;
  text-align: center;
  padding: 20px 0;
  font-style: italic;
}

/* ---- 响应式 ---- */
/* 平板：三栏压缩 */
@media (max-width: 960px) {
  .lineage-lanes {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .person-node {
    padding: 4px 8px;
    min-height: 36px;
  }
  .person-node .node-era {
    display: none;
  }
  .lane-header {
    font-size: 0.95rem;
    padding: 8px 6px;
  }
  .lineage-wrapper {
    padding: 10px 0;
  }
}

/* 手机：单栏堆叠 */
@media (max-width: 640px) {
  .lineage-lanes {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .lineage-chart {
    padding: 10px 4px;
  }

  .lineage-svg {
    display: none;
  }

  .person-node .node-name {
    font-size: 0.85rem;
  }

  .lane-header {
    font-size: 1rem;
  }

  .lineage-controls .era-filter-btn {
    padding: 3px 10px;
    font-size: 0.72rem;
  }
}