/* 小路技能树 · SkillTreeOSS 风格适配层（仅 gamification-on 显示） */
.xiaolu-skilltree {
  display: none;
  margin: 0.75rem 0 1rem;
  padding: 1rem 1.1rem 1.15rem;
  border-radius: 18px;
  background:
    radial-gradient(circle at 12% 20%, rgba(232, 184, 74, 0.14), transparent 42%),
    radial-gradient(circle at 88% 10%, rgba(109, 155, 122, 0.12), transparent 36%),
    linear-gradient(180deg, rgba(255, 252, 245, 0.96), rgba(245, 238, 226, 0.94));
  border: 1px solid rgba(180, 160, 120, 0.4);
  box-shadow: 0 10px 24px rgba(60, 50, 30, 0.07);
}

body.gamification-on.gamification-skilltree-on .xiaolu-skilltree {
  display: block;
}

.xiaolu-skilltree__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.xiaolu-skilltree__title {
  font-weight: 700;
  font-size: 1rem;
  color: #3f3a32;
}

.xiaolu-skilltree__sub {
  font-size: 0.78rem;
  color: #7a6f5c;
  margin-top: 0.15rem;
}

.xiaolu-skilltree__canvas {
  position: relative;
  min-height: 220px;
  padding: 0.5rem 0.25rem 0.25rem;
}

.xiaolu-skilltree__links {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.xiaolu-skilltree__row {
  display: flex;
  justify-content: space-between;
  gap: 0.45rem;
  position: relative;
  z-index: 1;
}

.xiaolu-skill-node {
  flex: 1;
  max-width: 132px;
  margin: 0 auto;
  border: 2px solid rgba(160, 140, 110, 0.35);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.78);
  padding: 0.55rem 0.4rem 0.65rem;
  text-align: center;
  cursor: default;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
  opacity: 0.45;
}

.xiaolu-skill-node.is-unlocked {
  opacity: 0.85;
  border-color: rgba(180, 150, 80, 0.55);
}

.xiaolu-skill-node.is-active {
  opacity: 1;
  transform: translateY(-3px) scale(1.03);
  border-color: var(--xl-path-lit, #e8b84a);
  box-shadow: 0 0 0 3px rgba(232, 184, 74, 0.18), 0 10px 18px rgba(80, 60, 20, 0.12);
}

.xiaolu-skill-node.is-done {
  opacity: 1;
  border-color: var(--xl-summit, #6d9b7a);
  background: linear-gradient(180deg, rgba(232, 248, 238, 0.95), rgba(255, 255, 255, 0.9));
}

body.teacher-console-mode .xiaolu-skill-node.is-unlocked,
body.teacher-console-mode .xiaolu-skill-node.is-active,
body.teacher-console-mode .xiaolu-skill-node.is-done {
  cursor: pointer;
}

.xiaolu-skill-node__icon {
  font-size: 1.35rem;
  line-height: 1.2;
}

.xiaolu-skill-node__name {
  font-size: 0.78rem;
  font-weight: 700;
  margin-top: 0.25rem;
  color: #3f3a32;
}

.xiaolu-skill-node__meta {
  font-size: 0.68rem;
  color: #8a8172;
  margin-top: 0.15rem;
}

.xiaolu-skilltree__children {
  display: none;
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px dashed rgba(170, 150, 120, 0.45);
}

.xiaolu-skilltree__children.is-open {
  display: block;
}

.xiaolu-skill-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.45rem 0.65rem;
  margin-bottom: 0.35rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(180, 160, 120, 0.28);
  font-size: 0.8rem;
}

.xiaolu-skill-child.is-done {
  border-color: rgba(109, 155, 122, 0.45);
  background: rgba(232, 248, 238, 0.7);
}

.xiaolu-skill-child__status {
  font-size: 0.72rem;
  color: #7a6f5c;
  white-space: nowrap;
}

#projection-view[data-screen="display"] .xiaolu-skilltree {
  font-size: 1.05rem;
}

#projection-view[data-screen="display"] .xiaolu-skill-node__name {
  font-size: 0.9rem;
}

body.gamification-theme-dark .xiaolu-skilltree {
  background: linear-gradient(180deg, rgba(28, 32, 40, 0.95), rgba(22, 26, 32, 0.92));
  border-color: rgba(143, 211, 200, 0.25);
}

body.gamification-theme-dark .xiaolu-skill-node,
body.gamification-theme-dark .xiaolu-skill-child {
  background: rgba(40, 46, 56, 0.9);
  color: #e8eef0;
}

body.gamification-theme-dark .xiaolu-skill-node__name,
body.gamification-theme-dark .xiaolu-skilltree__title {
  color: #f2f6f7;
}