/* AI 产业链 Tab */

.ai-cockpit-teaser {
  margin: 0;
  padding: 0 4px 4px;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.ai-chain-intro {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(52, 211, 153, 0.06));
  border-color: rgba(56, 189, 248, 0.22);
}

.ai-chain-intro__inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ai-chain-intro__title {
  margin: 0;
  font-size: 1.35rem;
}

.ai-chain-intro__subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.ai-chain-intro__disclaimer {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.ai-chain-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.ai-view-toggle {
  display: flex;
  gap: 4px;
  padding: 3px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.ai-view-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.ai-view-btn--active {
  background: var(--accent-soft);
  color: var(--accent);
}

.ai-mindmap-wrap {
  margin-top: 8px;
}

.ai-mindmap-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  gap: 12px;
  align-items: stretch;
}

.ai-mindmap-container {
  width: 100%;
  height: min(72vh, 760px);
  min-height: 420px;
  background: #0f172a;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.ai-mindmap-detail {
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  max-height: min(72vh, 760px);
  overflow-y: auto;
}

.ai-mindmap-detail__title {
  margin: 0 0 8px;
  font-size: 1rem;
}

.ai-mindmap-detail__meta {
  margin: 0 0 10px;
  color: var(--text-muted);
  font-size: 0.82rem;
}

.ai-mindmap-detail__desc {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.55;
}

.ai-mindmap-detail__seg {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.ai-mindmap-detail__empty {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

.ai-mindmap-detail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ai-mindmap-detail__list li {
  padding: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.82rem;
  line-height: 1.5;
}

.ai-mindmap-detail__sym {
  display: block;
  color: var(--text-muted);
  font-family: ui-monospace, monospace;
  font-size: 0.76rem;
}

.ai-mindmap-detail__role {
  display: block;
  margin-top: 4px;
  color: var(--text-muted);
}

.ai-mindmap-hint {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.78rem;
  text-align: center;
}

.ai-chain-search {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-chain-search__label {
  color: var(--text-muted);
  font-size: 0.82rem;
  white-space: nowrap;
}

.ai-chain-search__input {
  width: min(240px, 100%);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.86rem;
}

.ai-chain-search__input:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.5);
}

.ai-pipeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.ai-pipeline__step {
  position: relative;
  padding: 14px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
}

.ai-pipeline__step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
  z-index: 1;
}

.ai-pipeline__label {
  margin: 0;
  font-weight: 700;
  font-size: 0.95rem;
}

.ai-pipeline__hint {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.ai-layers {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ai-layer {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elevated);
}

.ai-layer__head {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.ai-layer__head--upstream {
  border-left: 4px solid #38bdf8;
}

.ai-layer__head--midstream {
  border-left: 4px solid #a78bfa;
}

.ai-layer__head--downstream {
  border-left: 4px solid #34d399;
}

.ai-layer__head--support {
  border-left: 4px solid #fbbf24;
}

.ai-layer__title {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.ai-layer__summary {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.ai-segments {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.ai-segment-group {
  border-bottom: 1px solid var(--border);
}

.ai-segment-group:last-child {
  border-bottom: none;
}

.ai-segment-group__title {
  margin: 0;
  padding: 14px 18px 10px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  background: rgba(56, 189, 248, 0.04);
}

.ai-segment-group__list {
  display: flex;
  flex-direction: column;
}

.ai-segment {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}

.ai-segment:last-child {
  border-bottom: none;
}

.ai-segment__head {
  margin-bottom: 12px;
}

.ai-segment__title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.ai-segment__count {
  flex-shrink: 0;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 600;
}

.ai-segment__name {
  margin: 0 0 4px;
  font-size: 0.96rem;
  font-weight: 600;
}

.ai-segment__desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.ai-stocks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
}

.ai-stock {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.ai-stock__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ai-stock__name {
  font-weight: 600;
  font-size: 0.9rem;
}

.ai-stock__symbol {
  color: var(--text-muted);
  font-size: 0.76rem;
  font-family: ui-monospace, monospace;
}

.ai-stock__role {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.ai-stock__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.ai-stock__tag {
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-muted);
  font-size: 0.68rem;
}

.ai-themes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.ai-theme {
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.ai-theme__name {
  margin: 0 0 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
}

.ai-theme__logic {
  margin: 0 0 8px;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--text);
}

.ai-theme__leaders {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.ai-chain-empty {
  padding: 24px;
  text-align: center;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .ai-mindmap-layout {
    grid-template-columns: 1fr;
  }

  .ai-mindmap-detail {
    max-height: none;
  }

  .ai-chain-toolbar {
    width: 100%;
    justify-content: flex-start;
  }

  .ai-chain-search__input {
    width: 100%;
  }

  .ai-pipeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-pipeline__step:nth-child(2n)::after {
    content: none;
  }

  .ai-themes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .ai-pipeline {
    grid-template-columns: 1fr;
  }

  .ai-pipeline__step::after {
    content: none;
  }

  .ai-stocks {
    grid-template-columns: 1fr;
  }
}