/* ===== 边层 ===== */
.edge-layer {
  position: absolute; top: 0; left: 0;
  overflow: visible;
  pointer-events: none;
}
.edge-path {
  fill: none;
  stroke: var(--area-color);
  stroke-width: 1.6;
  opacity: 0.32;
  transition: opacity .18s, stroke-width .18s;
}
.edge-path.highlight { opacity: 0.95; stroke-width: 2.6; filter: drop-shadow(0 0 4px var(--area-color)); }
.edge-path.dim { opacity: 0.06; }

/* ===== 节点层 ===== */
.node-layer { position: absolute; top: 0; left: 0; }

.node {
  --c: var(--area-color);
  position: absolute;
  width: 152px; height: 78px;
  background: linear-gradient(160deg, #111a2b, #0a1018);
  border: 1px solid color-mix(in srgb, var(--c) 45%, transparent);
  border-radius: 9px;
  display: flex; align-items: center; gap: 9px;
  padding: 8px 10px 8px 8px;
  cursor: pointer;
  transition: transform .14s, box-shadow .18s, border-color .18s, opacity .18s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.35);
  overflow: hidden;
}
.node::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, color-mix(in srgb, var(--c) 10%, transparent), transparent 60%);
  pointer-events: none; opacity: .8;
}
.node:hover {
  border-color: var(--c);
  box-shadow: 0 0 0 1px var(--c), 0 0 18px color-mix(in srgb, var(--c) 55%, transparent);
  transform: translateY(-1px);
  z-index: 5;
}
.node.selected {
  border-color: var(--c);
  box-shadow: 0 0 0 2px var(--c), 0 0 26px color-mix(in srgb, var(--c) 70%, transparent);
  z-index: 6;
}

/* 稀有 / 危险 / 起始 标记色 */
.node.rare { --c: var(--rare); }
.node.danger { --c: var(--danger); }
.node.start { border-color: color-mix(in srgb, var(--start) 50%, transparent); }
.node .start-mark {
  position: absolute; top: 3px; right: 5px;
  font-size: 8.5px; color: var(--start); letter-spacing: .5px;
  background: rgba(0,0,0,0.4); padding: 1px 4px; border-radius: 3px; z-index: 2;
}

.node-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 6px;
  background-color: #050810;
  background-repeat: no-repeat;
  image-rendering: auto;
  border: 1px solid color-mix(in srgb, var(--c) 30%, transparent);
  position: relative; z-index: 1;
}
.node-body { flex: 1; min-width: 0; position: relative; z-index: 1; }
.node-name {
  font-size: 12.5px; font-weight: 600; line-height: 1.25;
  color: var(--text);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 3px;
}
.node-meta { display: flex; align-items: center; gap: 6px; font-size: 10.5px; }
.node-cost {
  font-family: var(--mono); color: var(--c);
  display: flex; align-items: center; gap: 2px;
}
.node-tier {
  font-family: var(--mono); font-size: 9.5px;
  color: var(--text-faint);
  background: rgba(255,255,255,0.06); padding: 0 5px; border-radius: 3px;
}
.node-flag {
  position: absolute; top: 4px; right: 5px;
  font-size: 9px; line-height: 1;
  display: flex; gap: 3px; z-index: 2;
}
.node-flag .fl { width: 7px; height: 7px; border-radius: 50%; }
.node-flag .fl.rare { background: var(--rare); box-shadow: 0 0 5px var(--rare); }
.node-flag .fl.danger { background: var(--danger); box-shadow: 0 0 5px var(--danger); }

/* 交互状态 */
.node.match {
  border-color: #fff;
  box-shadow: 0 0 0 1px #fff, 0 0 20px rgba(255,255,255,0.5);
  z-index: 7;
}
.node.dim { opacity: 0.16; }
.node.hide { display: none; }

/* 可重复科技卡片（抽屉内，网格） */
.rd-card {
  display: flex; align-items: center; gap: 9px;
  background: linear-gradient(160deg, #111a2b, #0a1018);
  border: 1px solid color-mix(in srgb, var(--area-color) 40%, transparent);
  border-radius: 8px; padding: 7px 9px;
  cursor: pointer; transition: all .16s;
}
.rd-card:hover { border-color: var(--area-color); box-shadow: 0 0 14px color-mix(in srgb, var(--area-color) 40%, transparent); }
.rd-card .node-icon { width: 36px; height: 36px; }
.rd-card .node-name { font-size: 12px; -webkit-line-clamp: 1; }
.rd-card .node-meta { font-size: 10px; }