.relation-main {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 10px 40px;
}
.relation-legend {
  display: flex;
  gap: 16px;
  justify-content: center;
  padding: 10px 0;
  flex-wrap: wrap;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-dim);
}
.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.legend-dot.cp { background: #ff6b6b; }
.legend-dot.friend { background: #2ecc71; }
.legend-dot.sister { background: #f1c40f; }
.legend-dot.be { 
  background: transparent;
  border: 2px dashed #ff6b6b;
  border-radius: 0;
  width: 8px;
  height: 8px;
}
.relation-canvas {
  width: 100%;
  min-height: 600px;
  background: rgba(0,0,0,0.2);
  border-radius: 12px;
  overflow: hidden;
}
.relation-tooltip {
  display: none;
  position: absolute;
  background: rgba(20,20,30,0.95);
  color: #eee;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.78rem;
  pointer-events: none;
  z-index: 100;
  max-width: 200px;
  border: 1px solid rgba(255,255,255,0.1);
}
.relation-tooltip strong {
  color: #ff6b6b;
  font-size: 0.85rem;
}
.relation-tooltip hr {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.1);
}