/* CoAgent — 天蓝科技 · 可读性优先 */

:root {
  color-scheme: light;

  --brand-50: #f0f9ff;
  --brand-100: #e0f2fe;
  --brand-200: #bae6fd;
  --brand-300: #7dd3fc;
  --brand-400: #38bdf8;
  --brand-500: #0ea5e9;
  --brand-600: #0284c7;
  --brand-700: #0369a1;
  --brand-800: #075985;

  --brand: var(--brand-600);
  --brand-dark: var(--brand-700);
  --brand-light: var(--brand-100);
  --brand-muted: var(--brand-400);
  --brand-glow: rgba(2, 132, 199, 0.08);
  --brand-ring: rgba(14, 165, 233, 0.22);

  --purple: var(--brand);
  --purple-light: var(--brand-light);
  --purple-muted: var(--brand-muted);
  --purple-glow: var(--brand-glow);

  --bg: #f4f9fc;
  --bg-grid: #e3edf5;
  --bg-radial: rgba(14, 165, 233, 0.07);
  --surface: #fcfeff;
  --surface-elevated: #ffffff;
  --border: #d8e6f0;
  --border-strong: #b8cddc;
  --text: #0c1929;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --header-bg: rgba(252, 254, 255, 0.94);

  --green: #059669;
  --green-bg: #ecfdf5;
  --amber: #d97706;
  --amber-bg: #fffbeb;
  --red: #dc2626;
  --red-bg: #fef2f2;

  --kg-agent: var(--brand-600);
  --kg-incident: #2563eb;
  --kg-playbook: var(--amber);
  --kg-root: var(--red);
  --kg-action: var(--green);
  --kg-score: #5c5470;

  --shadow-sm: 0 1px 2px rgba(7, 89, 133, 0.05);
  --shadow-md: 0 4px 20px rgba(7, 89, 133, 0.07);
  --shadow-lg: 0 12px 40px rgba(2, 132, 199, 0.1);
  --radius: 10px;
  --radius-lg: 14px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --text-base: 1.0625rem;
  --text-sm: 1rem;
  --text-xs: 0.875rem;
  --leading: 1.65;
  --header-h: 60px;
  --nav-h: 48px;
  --content-max: min(1720px, 96vw);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0b141c;
  --bg-grid: #1a2834;
  --bg-radial: rgba(14, 165, 233, 0.06);
  --surface: #121c26;
  --surface-elevated: #172230;
  --border: #263645;
  --border-strong: #3a5064;
  --text: #e8f4fc;
  --text-secondary: #b8cfe0;
  --text-muted: #8aa8be;
  --header-bg: rgba(18, 28, 38, 0.94);
  --brand-glow: rgba(14, 165, 233, 0.14);
  --brand-ring: rgba(56, 189, 248, 0.28);
  --green-bg: rgba(5, 150, 105, 0.18);
  --amber-bg: rgba(217, 119, 6, 0.18);
  --red-bg: rgba(220, 38, 38, 0.18);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
  --brand-light: rgba(14, 165, 233, 0.16);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 18px;
}

body {
  font-family: var(--font);
  font-size: var(--text-base);
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 90% 60% at 50% -15%, var(--bg-radial), transparent 55%),
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 100% 480px, 40px 40px, 40px 40px;
  background-repeat: no-repeat, repeat, repeat;
  color: var(--text);
  min-height: 100vh;
  line-height: var(--leading);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s var(--ease-out), color 0.25s var(--ease-out);
}

/* ── Top bar ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 30px;
  height: 30px;
  background: linear-gradient(145deg, var(--brand-500) 0%, var(--brand-700) 100%);
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.28);
}

.brand-name {
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4375rem 0.875rem;
  font-family: var(--font);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease-out), color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}

.theme-toggle:hover {
  border-color: var(--brand-muted);
  color: var(--brand);
}

.theme-toggle-icon {
  font-size: 1rem;
  line-height: 1;
  opacity: 0.85;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.125rem;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 2px;
  text-decoration: none;
  transition: border-color 0.2s var(--ease-out), background 0.2s var(--ease-out), transform 0.2s var(--ease-out);
}

.header-cta:hover {
  border-color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.badge {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  background: var(--brand-light);
  color: var(--brand);
  border: 1px solid var(--brand-ring);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Sub navigation ── */
.subnav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
  display: flex;
  gap: 0.125rem;
  overflow-x: auto;
}

.subnav a {
  position: relative;
  padding: 0.9375rem 1.125rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease-out);
}

.subnav a:hover { color: var(--text-secondary); }

.subnav a.active {
  color: var(--brand);
  font-weight: 600;
}

.subnav a.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0.75rem;
  right: 0.75rem;
  height: 2px;
  background: var(--brand);
  border-radius: 2px 2px 0 0;
}

/* ── Page shell ── */
.page {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.page-hero {
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
}

.page-hero h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
  max-width: 36rem;
}

.page-hero h2 em {
  font-style: normal;
  color: var(--brand);
  font-weight: 700;
}

.page-hero p {
  margin-top: 0.625rem;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  max-width: 42rem;
  line-height: var(--leading);
}

/* ── Palantir-inspired app shell (all tabs) ── */
body.page-app {
  color-scheme: dark;

  /* 统一画布：Hero / 内容区 / 卡片同一色温 */
  --canvas: #0a1018;
  --canvas-elevated: #0e1623;
  --bg: var(--canvas-elevated);
  --bg-grid: #151f2e;
  --bg-radial: rgba(110, 181, 216, 0.05);

  --surface: #141e2e;
  --surface-elevated: #1a2738;
  --border: #243447;
  --border-strong: #32465c;
  --border-subtle: #1c2838;

  --text: #eef4f9;
  --text-secondary: #a8bdd0;
  --text-muted: #6b8499;

  --accent: #6eb5d8;
  --accent-bright: #8ecae6;
  --accent-soft: rgba(110, 181, 216, 0.12);
  --accent-ring: rgba(110, 181, 216, 0.32);
  --accent-border: rgba(110, 181, 216, 0.28);
  --accent-border-strong: rgba(110, 181, 216, 0.42);

  --brand: var(--accent);
  --brand-dark: #4a9ec4;
  --brand-muted: var(--accent-bright);
  --brand-light: var(--accent-soft);
  --brand-glow: rgba(110, 181, 216, 0.1);
  --brand-ring: var(--accent-ring);
  --brand-500: var(--accent);
  --brand-600: var(--accent);
  --brand-700: var(--brand-dark);

  --purple: var(--accent);
  --purple-light: var(--accent-soft);
  --purple-muted: var(--accent-bright);
  --purple-glow: var(--brand-glow);

  --green: #5cb894;
  --green-bg: rgba(92, 184, 148, 0.14);
  --amber: #d4a054;
  --amber-bg: rgba(212, 160, 84, 0.14);
  --red: #d47070;
  --red-bg: rgba(212, 112, 112, 0.14);

  --kg-agent: #3d6d8c;
  --kg-incident: #4a6fa5;
  --kg-playbook: #9a7344;
  --kg-root: #a85858;
  --kg-action: #45896e;
  --kg-score: #5a6478;

  --header-bg: transparent;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.28);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.32);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.38);

  background: var(--canvas);
  background-image: none;
}

body.page-app .site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  border-bottom: none;
  backdrop-filter: none;
  z-index: 200;
}

body.page-app .brand {
  color: #fff;
}

body.page-app .brand-mark {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

body.page-app .subnav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  z-index: 199;
  background: transparent;
  border-bottom: none;
}

body.page-app .subnav a {
  color: rgba(255, 255, 255, 0.52);
}

body.page-app .subnav a:hover {
  color: rgba(255, 255, 255, 0.82);
}

body.page-app .subnav a.active {
  color: #fff;
}

body.page-app .subnav a.active::after {
  background: #fff;
}

.tab-overview,
.tab-workspace,
.tab-audit {
  max-width: none;
  margin: 0;
  padding: 0;
}

.page-content,
.overview-content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2rem) clamp(1.25rem, 4vw, 2.5rem) clamp(2rem, 5vw, 3rem);
  background: transparent;
}

body.page-app .page-content,
body.page-app .overview-content {
  background: linear-gradient(180deg, var(--canvas-elevated) 0%, var(--canvas) 100%);
}

body.page-app .card {
  background: var(--surface);
  border-color: var(--border-subtle);
}

body.page-app .card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

body.page-app .card-count {
  background: var(--canvas-elevated);
  border: 1px solid var(--border-subtle);
}

body.page-app .card h3 {
  color: var(--text-secondary);
}

body.page-app .btn:not(.btn-secondary):not(.btn-outline):not(.btn-success):not(.btn-warning):not(.btn-danger) {
  background: var(--accent);
  color: var(--canvas);
  border: 1px solid transparent;
}

body.page-app .btn:not(.btn-secondary):not(.btn-outline):not(.btn-success):not(.btn-warning):not(.btn-danger):hover {
  background: var(--accent-bright);
  color: var(--canvas);
  border-color: transparent;
}

body.page-app .btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
}

body.page-app .btn-secondary {
  background: var(--surface-elevated);
  border-color: var(--border);
  color: var(--text);
}

body.page-app .select-field,
body.page-app .timeline-entry pre {
  background: var(--canvas-elevated);
  border-color: var(--border-subtle);
}

.pal-page-banner {
  position: relative;
  min-height: clamp(220px, 34vh, 340px);
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + var(--nav-h) + 1rem) clamp(1.25rem, 4vw, 2.5rem) 2.25rem;
  overflow: hidden;
  background: var(--canvas);
}

.pal-banner-scrim {
  background:
    linear-gradient(180deg, rgba(10, 16, 24, 0.55) 0%, rgba(10, 16, 24, 0.9) 100%),
    radial-gradient(ellipse 80% 60% at 20% 30%, transparent 0%, rgba(10, 16, 24, 0.55) 100%);
}

.pal-page-banner-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  color: #fff;
}

.pal-page-banner .pal-hero-eyebrow {
  margin-bottom: 0.75rem;
}

.pal-page-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.pal-page-lead {
  margin-top: 0.75rem;
  max-width: 42rem;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.72);
  line-height: var(--leading);
}

/* ── Palantir-inspired landing hero (Tab 1) ── */
.pitch-hero.pal-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: calc(var(--header-h) + var(--nav-h) + 2rem) clamp(1.25rem, 4vw, 2.5rem) 4.5rem;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: var(--canvas);
  overflow: hidden;
}

.pal-hero-media {
  position: absolute;
  inset: 0;
  background: url("images/hero-ops.jpg") center / cover no-repeat;
  transform: scale(1.03);
  animation: pal-hero-ken 28s ease-in-out infinite alternate;
}

@keyframes pal-hero-ken {
  from { transform: scale(1.03); }
  to { transform: scale(1.09); }
}

.pal-hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 16, 24, 0.48) 0%, rgba(10, 16, 24, 0.62) 42%, rgba(10, 16, 24, 0.86) 100%),
    radial-gradient(ellipse 90% 70% at 50% 35%, transparent 0%, rgba(10, 16, 24, 0.48) 100%);
}

.pal-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 62rem;
  color: #fff;
}

.pal-hero-subtitle {
  font-size: clamp(1.0625rem, 2.2vw, 1.375rem);
  font-weight: 400;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.82);
  max-width: 46rem;
  margin: 0 auto clamp(1.75rem, 4vw, 2.5rem);
}

.pal-hero-eyebrow {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
  margin-bottom: clamp(1rem, 2.5vw, 1.75rem);
}

.pal-hero-title {
  font-size: clamp(2rem, 5.8vw, 3.875rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.14;
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

.pal-hero-title span {
  display: block;
  margin-top: 0.12em;
}

.pal-hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 10.5rem;
  padding: 0.9375rem 2.125rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #0c1929;
  background: #fff;
  border: none;
  border-radius: 2px;
  text-decoration: none;
  transition: transform 0.22s var(--ease-out), box-shadow 0.22s var(--ease-out);
}

.pal-hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.38);
}

.pal-hero-scroll {
  position: absolute;
  bottom: 1.75rem;
  left: 50%;
  z-index: 2;
  color: rgba(255, 255, 255, 0.62);
  font-size: 1.125rem;
  line-height: 1;
  text-decoration: none;
  transform: translateX(-50%);
  animation: pal-scroll-bounce 2.4s ease-in-out infinite;
}

@keyframes pal-scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.62; }
  50% { transform: translateX(-50%) translateY(7px); opacity: 1; }
}

.pitch-stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.pitch-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
}

.pitch-stat strong {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.pitch-stat span {
  font-size: 0.6875rem;
  color: var(--text-muted);
}

@media (max-width: 520px) {
  .pitch-stats-bar { grid-template-columns: 1fr; }
}

/* ── Hackathon pitch (Tab 1 below fold) ── */
.pitch-hero:not(.pal-hero) {
  display: grid;
  gap: 1.5rem;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

@media (min-width: 900px) {
  .pitch-hero:not(.pal-hero) {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

.pitch-badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-light);
  border: 1px solid var(--brand-ring);
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  margin-bottom: 0.875rem;
}

.pitch-hero h2 {
  font-size: clamp(1.375rem, 2.8vw, 1.875rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
  max-width: 36rem;
}

.pitch-hero h2 em {
  font-style: normal;
  color: var(--brand);
}

.pitch-lead {
  margin-top: 0.75rem;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  max-width: 40rem;
  line-height: var(--leading);
}

.pitch-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

.pitch-meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.pitch-metrics {
  display: flex;
  gap: 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.pitch-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-width: 4.5rem;
}

.pitch-metric-val {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
}

.pitch-metric-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.pitch-narrative {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 1024px) {
  .pitch-narrative { grid-template-columns: repeat(3, 1fr); }
}

.pitch-pillar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.pitch-pillar-tag {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.625rem;
}

.pitch-problem { border-top: 3px solid var(--red); }
.pitch-solution { border-top: 3px solid var(--brand); }
.pitch-impact { border-top: 3px solid var(--green); }

.pitch-pillar h3 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.pain-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  flex: 1;
}

.pain-list li {
  font-size: var(--text-xs);
  line-height: 1.5;
  padding-left: 0.75rem;
  border-left: 2px solid var(--border);
}

.pain-list strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--text);
  margin-bottom: 0.125rem;
}

.pain-list span { color: var(--text-secondary); }

.solution-flow {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  flex: 1;
}

.solution-step {
  display: flex;
  gap: 0.625rem;
  align-items: flex-start;
  padding: 0.5rem 0;
}

.solution-num {
  flex-shrink: 0;
  width: 1.375rem;
  height: 1.375rem;
  border-radius: 50%;
  background: var(--brand-light);
  color: var(--brand);
  font-size: 0.6875rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.solution-step strong {
  display: block;
  font-size: var(--text-sm);
  margin-bottom: 0.125rem;
}

.solution-step span {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.solution-arrow {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding-left: 1.75rem;
  line-height: 1;
}

.pitch-formula {
  margin-top: 0.875rem;
  padding: 0.625rem 0.75rem;
  background: var(--bg);
  border-radius: 6px;
  border-left: 2px solid var(--brand);
}

.pitch-formula code {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--brand-dark);
  word-break: break-all;
}

.impact-grid {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  flex: 1;
}

.impact-item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0 0.625rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--border);
}

.impact-score {
  grid-row: span 2;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  align-self: center;
  min-width: 2rem;
  text-align: center;
}

.impact-item.green .impact-score { color: var(--green); }
.impact-item.amber .impact-score { color: var(--amber); }
.impact-item.red .impact-score { color: var(--red); }

.impact-item strong {
  font-size: var(--text-sm);
}

.impact-item span:last-child {
  grid-column: 2;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  line-height: 1.45;
}

.impact-footnote {
  margin-top: 0.75rem;
  font-size: var(--text-xs);
  color: var(--text-muted);
  font-style: italic;
}

.demo-script { margin-bottom: 1.25rem; }

.demo-steps {
  list-style: none;
  display: grid;
  gap: 0.375rem;
}

@media (min-width: 768px) {
  .demo-steps { grid-template-columns: 1fr 1fr; gap: 0.5rem 1.5rem; }
}

.demo-steps li {
  display: flex;
  gap: 0.625rem;
  align-items: baseline;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  padding: 0.375rem 0;
}

.demo-time {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--brand);
  min-width: 2.5rem;
}

.pitch-live { margin-top: 0; }

.btn-lg {
  padding: 0.625rem 1.25rem;
  font-size: var(--text-sm);
}

/* ── 场景触发条 ── */
.demo-control-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.demo-control-meta {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 10rem;
}

.demo-control-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber);
}

.demo-control-desc {
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.demo-control-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  flex: 1;
}

.demo-scenario-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4375rem 0.75rem;
  font-family: var(--font);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, opacity 0.15s;
}

.demo-scenario-btn:hover:not(:disabled) {
  border-color: var(--brand-muted);
  box-shadow: var(--shadow-sm);
}

.demo-scenario-btn:disabled,
.demo-scenario-btn.running {
  opacity: 0.65;
  cursor: wait;
}

.demo-scenario-btn.s1 { border-top: 2px solid var(--brand); }
.demo-scenario-btn.s2 { border-top: 2px solid var(--amber); }
.demo-scenario-btn.s3 { border-top: 2px solid var(--red); }

.demo-scenario-id {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.demo-scenario-name {
  white-space: nowrap;
}

.demo-scenario-grade {
  font-size: 0.6875rem;
  font-weight: 600;
}

.demo-scenario-grade.green { color: var(--green); }
.demo-scenario-grade.amber { color: var(--amber); }
.demo-scenario-grade.red { color: var(--red); }

.demo-trigger-result {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  min-width: 8rem;
}

.demo-result-text strong {
  color: var(--brand);
}

.scenario-pso {
  margin: 0.625rem 0 0.75rem;
}

.pso-row {
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 0.375rem;
  padding: 0.375rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  font-size: var(--text-xs);
  line-height: 1.45;
}

.pso-row:last-child { border-bottom: none; }

.pso-row dt {
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.625rem;
  letter-spacing: 0.04em;
  padding-top: 0.125rem;
}

.pso-row dd { color: var(--text-secondary); margin: 0; }

.pso-impact dd { color: var(--text); }

.pso-impact strong { font-weight: 700; }

/* ── Pipeline stack (Palantir-inspired layer diagram) ── */
.pipeline-stack {
  display: none;
}

@media (min-width: 1024px) {
  .tab-overview .pipeline-stack {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
  }
}

.stack-layer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.stack-layer span:first-child {
  width: 3px;
  height: 1rem;
  border-radius: 2px;
  flex-shrink: 0;
}

.stack-layer:nth-child(1) span:first-child { background: var(--brand-200); }
.stack-layer:nth-child(2) span:first-child { background: var(--brand-300); }
.stack-layer:nth-child(3) span:first-child { background: var(--brand-400); }
.stack-layer:nth-child(4) span:first-child { background: var(--brand); }
.stack-layer:nth-child(5) span:first-child { background: var(--brand-700); }

.stack-layer.active {
  background: var(--brand-glow);
  color: var(--brand);
}

/* ── Layout grids ── */
.grid-2 {
  display: grid;
  grid-template-columns: minmax(240px, 300px) 1fr;
  gap: 1.25rem;
}

.advanced-panels .kg-layout {
  grid-template-columns: minmax(420px, 1.35fr) minmax(280px, 0.65fr);
  align-items: start;
}

@media (max-width: 1100px) {
  .advanced-panels .kg-layout { grid-template-columns: 1fr; }
}

.kg-layout .kg-card {
  min-width: 0;
}

.kg-layout .kg-topology-wrap {
  min-height: 360px;
}

@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; }
}

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: none;
  transition: border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
}

.card-count {
  font-size: var(--text-xs);
  color: var(--text-muted);
  background: var(--bg);
  padding: 0.1875rem 0.5625rem;
  border-radius: 999px;
}

/* ── Agent list ── */
.agent-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8125rem 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--text-sm);
  transition: background 0.15s;
}

.agent-item:last-child { border-bottom: none; }

.agent-item:hover { background: var(--brand-glow); margin: 0 -0.5rem; padding-left: 0.5rem; padding-right: 0.5rem; border-radius: 6px; }

.agent-id {
  font-weight: 500;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.score-badge {
  font-weight: 600;
  font-size: 0.8125rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
}

.score-green { color: var(--green); background: var(--green-bg); }
.score-amber { color: var(--amber); background: var(--amber-bg); }
.score-red { color: var(--red); background: var(--red-bg); }

/* ── Timeline ── */
.timeline {
  max-height: 520px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

.timeline-entry {
  position: relative;
  padding: 0.75rem 0 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.timeline-entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--purple-muted);
  border: 2px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border);
}

.timeline-entry:first-child::before {
  background: var(--purple);
  box-shadow: 0 0 0 1px var(--purple), 0 0 8px var(--purple-glow);
}

.timeline-entry .type {
  color: var(--brand);
  font-weight: 600;
  font-size: var(--text-sm);
  font-family: var(--font);
}

.timeline-entry .ts {
  color: var(--text-muted);
  font-size: 0.6875rem;
  margin-left: 0.5rem;
}

.timeline-entry pre {
  margin-top: 0.5rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.55;
  font-size: var(--text-xs);
}

/* ── Scenario cards · 图表背景 ── */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.scenario-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  position: relative;
  overflow: hidden;
  min-height: 420px;
}

.scenario-card-bg {
  position: absolute;
  inset: 0;
  background-size: 155% auto;
  background-position: 92% 45%;
  background-repeat: no-repeat;
  opacity: 0.52;
  pointer-events: none;
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.scenario-card.s1 .scenario-card-bg { background-image: url('/static/images/scenario-s1.svg'); }
.scenario-card.s2 .scenario-card-bg { background-image: url('/static/images/scenario-s2.svg'); }
.scenario-card.s3 .scenario-card-bg { background-image: url('/static/images/scenario-s3.svg'); }

.scenario-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(108deg, var(--surface) 48%, color-mix(in srgb, var(--surface) 62%, transparent) 100%);
  pointer-events: none;
}

[data-theme="dark"] .scenario-card::after {
  background: linear-gradient(108deg, var(--surface) 44%, color-mix(in srgb, var(--surface) 48%, transparent) 100%);
}

.scenario-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 2;
}

.scenario-card.s1::before { background: linear-gradient(90deg, var(--green), color-mix(in srgb, var(--green) 65%, white)); }
.scenario-card.s2::before { background: linear-gradient(90deg, var(--amber), color-mix(in srgb, var(--amber) 65%, white)); }
.scenario-card.s3::before { background: linear-gradient(90deg, var(--red), color-mix(in srgb, var(--red) 65%, white)); }

.scenario-card-content {
  position: relative;
  z-index: 1;
  padding: 1.5rem;
}

.scenario-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: var(--brand-muted);
}

.scenario-card:hover .scenario-card-bg {
  opacity: 0.68;
  transform: scale(1.03);
}

.scenario-card .scenario-id {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 0.375rem;
}

.scenario-card h4 {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

.scenario-card p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-bottom: 0.75rem;
  line-height: var(--leading);
}

.scenario-chart-panel {
  margin: 0.5rem 0 0.875rem;
  height: 7.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  overflow: hidden;
  backdrop-filter: blur(4px);
}

.scenario-chart-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
  display: block;
  opacity: 0.92;
}

.scenario-card .expected {
  font-size: 0.6875rem;
  font-style: italic;
  color: var(--text-secondary);
  padding: 0.5rem 0.75rem;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 1rem;
  backdrop-filter: blur(4px);
}

.scenario-card .btn { width: 100%; text-align: center; position: relative; z-index: 2; }

/* ── 图表组件 · 全站复用 ── */
.viz-panel {
  margin-bottom: 1.25rem;
}

.viz-panel .card-header {
  margin-bottom: 0.75rem;
}

.viz-bar-chart,
.viz-grouped-bars,
.viz-stacked-bars {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  padding: 0 0.25rem 0.5rem;
}

.viz-bar-row,
.viz-group,
.viz-stack-row {
  display: grid;
  grid-template-columns: 5.5rem 1fr 2.25rem;
  align-items: center;
  gap: 0.625rem;
  font-size: var(--text-xs);
}

.viz-stack-row {
  grid-template-columns: 7.5rem 1fr 2rem;
}

.viz-bar-label,
.viz-group-label,
.viz-stack-row > span:first-child {
  color: var(--text-secondary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.viz-bar-track {
  height: 0.5rem;
  background: var(--bg);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.viz-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--brand);
  transition: width 0.6s var(--ease-out);
}

.viz-bar-fill.green { background: linear-gradient(90deg, var(--green), color-mix(in srgb, var(--green) 65%, white)); }
.viz-bar-fill.amber { background: linear-gradient(90deg, var(--amber), color-mix(in srgb, var(--amber) 65%, white)); }
.viz-bar-fill.red { background: linear-gradient(90deg, var(--red), color-mix(in srgb, var(--red) 65%, white)); }
.viz-bar-fill.brand { background: linear-gradient(90deg, var(--brand-dark), var(--brand-muted)); }
.viz-bar-fill.muted { background: var(--border-strong); width: 4% !important; min-width: 4px; }

.viz-bar-value,
.viz-group > span:last-child {
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text);
  text-align: right;
}

.viz-sparkline {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.viz-sparkline svg {
  width: 100%;
  height: 3rem;
  display: block;
}

.viz-sparkline-caption {
  display: block;
  margin-top: 0.375rem;
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.viz-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.viz-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.35rem;
  vertical-align: middle;
}

.viz-dot.green { background: var(--green); }
.viz-dot.amber { background: var(--amber); }
.viz-dot.red { background: var(--red); }

.viz-donut-row {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.5rem 0.25rem 1rem;
  flex-wrap: wrap;
}

.viz-donut {
  position: relative;
  width: 7.5rem;
  height: 7.5rem;
  flex-shrink: 0;
}

.viz-donut-ring {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(
    var(--green) 0 calc(var(--pct-up, 50) * 1%),
    var(--red) calc(var(--pct-up, 50) * 1%) 100%
  );
  mask: radial-gradient(circle at center, transparent 52%, #000 53%);
  -webkit-mask: radial-gradient(circle at center, transparent 52%, #000 53%);
}

.viz-donut-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.viz-donut-legend {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* ── 飞轮历史 ── */
.flywheel-history {
  display: flex;
  flex-direction: column;
}

.flywheel-history-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--text-xs);
}

.flywheel-history-row:last-child { border-bottom: none; }

.flywheel-rating {
  font-weight: 600;
  white-space: nowrap;
}

.flywheel-rating.up { color: var(--green); }
.flywheel-rating.down { color: var(--red); }

.flywheel-meta {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.flywheel-meta code {
  font-size: 0.75rem;
}

.flywheel-time {
  color: var(--text-muted);
  white-space: nowrap;
}

.flywheel-detail-link {
  color: var(--brand);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.flywheel-detail-link:hover { text-decoration: underline; }

@media (max-width: 720px) {
  .flywheel-history-row {
    grid-template-columns: 1fr;
    gap: 0.375rem;
  }
}

/* ── 企业审计 · 故障详情 ── */
.audit-detail-panel {
  margin-bottom: 1.25rem;
  border-color: var(--brand-muted);
  box-shadow: var(--shadow-md);
}

.audit-detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  padding: 0 0 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.audit-detail-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.audit-detail-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 1.25rem;
}

.audit-feedback-row .audit-feedback-hint {
  flex: 1;
  min-width: 10rem;
  margin: 0;
}

.audit-detail-timeline h4 {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.audit-detail-step {
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--text-xs);
}

.audit-detail-step:last-child { border-bottom: none; }

.audit-step-time {
  color: var(--text-muted);
  margin-right: 0.75rem;
}

.audit-step-type {
  font-weight: 600;
  color: var(--brand);
  margin-right: 0.5rem;
}

.audit-step-op { color: var(--text-secondary); }

.audit-step-payload {
  margin-top: 0.375rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border-radius: 6px;
  font-size: 0.6875rem;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-word;
}

.incident-row.audit-row-highlight,
.incident-row.audit-row-link:hover {
  background: var(--brand-glow);
  margin: 0 -0.5rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  border-radius: 6px;
}

.incident-row.audit-row-highlight {
  border-left: 3px solid var(--brand);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}

.btn:hover { background: var(--brand-dark); }
.btn:active { transform: scale(0.98); }

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
}

.btn-secondary:hover { background: var(--bg); border-color: var(--text-muted); }

.btn-outline {
  background: transparent;
  color: var(--purple);
  border: 1px solid var(--purple-muted);
}

.btn-outline:hover { background: var(--purple-light); }

.btn-success { background: var(--green); }
.btn-success:hover { background: color-mix(in srgb, var(--green) 85%, black); }

.btn-warning { background: var(--amber); }
.btn-warning:hover { background: color-mix(in srgb, var(--amber) 85%, black); }

.btn-danger { background: var(--red); }
.btn-danger:hover { background: color-mix(in srgb, var(--red) 85%, black); }

/* ── Decision panel ── */
.decision-panel {
  max-width: 720px;
  border-left: 4px solid var(--border);
}

.decision-panel.executable { border-left-color: var(--green); }
.decision-panel.needs_confirmation { border-left-color: var(--amber); }
.decision-panel.escalate { border-left-color: var(--red); }

.decision-score-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.25rem;
}

.decision-score-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--text);
}

.grade-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
}

.grade-pill.executable { background: var(--green-bg); color: var(--green); }
.grade-pill.needs_confirmation { background: var(--amber-bg); color: var(--amber); }
.grade-pill.escalate { background: var(--red-bg); color: var(--red); }

.factors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1.25rem 0;
}

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

.factor {
  text-align: center;
  padding: 1rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.factor .label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.factor .value {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: 0.25rem;
  color: var(--purple);
}

.impact-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 1rem 0;
  padding: 1rem;
  background: var(--bg);
  border-radius: var(--radius);
  border-left: 3px solid var(--purple-muted);
}

.steps-list {
  list-style: none;
  margin: 1rem 0;
}

.steps-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
}

.steps-list li:last-child { border-bottom: none; }

.risk-tag {
  flex-shrink: 0;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
}

.risk-low { background: var(--green-bg); color: var(--green); }
.risk-medium { background: var(--amber-bg); color: var(--amber); }
.risk-high { background: var(--red-bg); color: var(--red); }

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.25rem;
}

/* ── Stats / flywheel ── */
.flywheel-loop-card {
  margin-bottom: 1.25rem;
  border-color: var(--accent-border, var(--brand-ring));
  background: linear-gradient(135deg, var(--accent-soft, var(--brand-glow)) 0%, var(--surface) 55%);
}

.flywheel-card-header {
  align-items: flex-start;
  gap: 0.75rem;
}

.flywheel-card-note {
  flex: 1;
  max-width: 28rem;
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--text-muted);
  text-align: right;
}

@media (max-width: 720px) {
  .flywheel-card-header {
    flex-direction: column;
    align-items: stretch;
  }
  .flywheel-card-note {
    max-width: none;
    text-align: left;
  }
}

.flywheel-track {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.35rem;
  padding: 0.25rem 0 0.75rem;
}

.flywheel-node {
  flex: 1 1 140px;
  min-width: 120px;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  text-align: center;
  transition: border-color 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

.flywheel-node-accent {
  border-color: var(--accent-border-strong, var(--brand-ring));
  background: var(--accent-soft, var(--brand-glow));
}

.flywheel-node.flywheel-pulse {
  border-color: var(--brand-muted);
  box-shadow: 0 0 0 2px var(--brand-ring);
  transform: translateY(-2px);
}

.flywheel-num {
  display: inline-flex;
  width: 1.375rem;
  height: 1.375rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  background: var(--brand-light);
  color: var(--brand);
  margin-bottom: 0.375rem;
}

.flywheel-node strong {
  display: block;
  font-size: 0.875rem;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.flywheel-node small {
  display: block;
  font-size: 0.6875rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.flywheel-arrow {
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 1rem;
  padding: 0 0.15rem;
}

.flywheel-arrow-return {
  font-size: 1.25rem;
  color: var(--brand-muted);
  margin-left: auto;
}

.flywheel-loop-foot {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin: 0;
  padding-top: 0.25rem;
  border-top: 1px solid var(--border);
}

.flywheel-stats-row {
  display: grid;
  grid-template-columns: minmax(220px, 1.35fr) repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
  align-items: stretch;
}

@media (max-width: 960px) {
  .flywheel-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .flywheel-donut-card {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .flywheel-stats-row {
    grid-template-columns: 1fr;
  }
}

.flywheel-donut-card .card-header {
  margin-bottom: 0.5rem;
}

.flywheel-donut-inner {
  padding: 0.25rem 0 0.75rem;
  min-height: 7.5rem;
  align-items: center;
}

.stat-box-inline {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem 1rem;
  text-align: center;
}

.stat-box-inline .num {
  font-size: 2rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: 1fr; }
}

.stat-box {
  text-align: center;
  padding: 2rem 1.5rem;
}

.stat-box .num {
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--purple);
  line-height: 1;
}

.stat-box .label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.stat-box.stat-down .num { color: var(--red); }
.stat-box.stat-up .num { color: var(--green); }

/* ── Form elements ── */
.select-field {
  width: 100%;
  padding: 0.6875rem 0.875rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font-family: var(--font);
  font-size: var(--text-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.select-field:focus {
  outline: none;
  border-color: var(--purple-muted);
  box-shadow: 0 0 0 3px var(--purple-glow);
}

.feedback-btns {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
}

.audit-log-header {
  flex-wrap: wrap;
  gap: 0.75rem;
}

.audit-log-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0 1rem 0.875rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.25rem;
}

.audit-log-footnote {
  padding: 0 1rem 1rem;
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin: 0;
}

/* ── Collapsible card sections ── */
details.collapsible-card {
  margin-bottom: 1rem;
}

details.collapsible-card > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}

details.collapsible-card > summary::-webkit-details-marker {
  display: none;
}

.collapsible-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0;
}

.collapsible-summary h3 {
  flex: 1;
  margin: 0;
}

.collapse-chevron {
  flex-shrink: 0;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform 0.2s var(--ease-out);
  margin-right: 0.25rem;
}

details.collapsible-card:not([open]) > summary .collapse-chevron {
  transform: rotate(-45deg);
}

details.collapsible-card:not([open]) > summary {
  margin-bottom: 0;
}

.collapsible-body {
  padding-top: 0.25rem;
}

details.collapsible-card:not([open]) .collapsible-body {
  display: none;
}

.audit-detail-panel.collapsible-card > summary {
  margin-bottom: 0;
}

.audit-detail-panel .collapsible-body {
  padding: 0 0 0.25rem;
}

.audit-detail-panel .audit-detail-grid {
  padding: 0 1rem;
}

.audit-detail-panel .audit-detail-actions {
  padding: 0 1rem 1rem;
}

.audit-detail-panel .audit-detail-timeline {
  padding: 0 1rem 1rem;
}

.audit-feedback-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  max-width: 16rem;
}

.btn-sm {
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
}

.retry-exec-panel {
  margin-top: 1rem;
  padding: 1rem 1.125rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.retry-exec-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: var(--text-sm);
}

.retry-exec-header.success .retry-exec-status { color: var(--green); }
.retry-exec-header.failed .retry-exec-status { color: var(--red); }

.retry-exec-status {
  font-size: var(--text-xs);
  color: var(--brand);
  font-weight: 600;
}

.retry-exec-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.retry-exec-steps li {
  position: relative;
  padding: 0.5rem 0.75rem 0.5rem 2rem;
  border-radius: 6px;
  font-size: var(--text-xs);
  color: var(--text-secondary);
  background: var(--surface);
  border: 1px solid var(--border);
}

.retry-exec-steps li::before {
  content: '○';
  position: absolute;
  left: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75rem;
}

.retry-exec-steps li.running {
  border-color: var(--brand-ring);
  color: var(--text);
}

.retry-exec-steps li.running::before {
  content: '◉';
  color: var(--brand);
  animation: pulse 1s ease-in-out infinite;
}

.retry-exec-steps li.done {
  border-color: rgba(5, 150, 105, 0.35);
  color: var(--text);
}

.retry-exec-steps li.done::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
}

.retry-exec-note {
  margin: 0.75rem 0 0;
  font-size: var(--text-xs);
  color: var(--green);
}

.retry-exec-panel.retry-exec-failed .retry-exec-note {
  color: var(--red);
}

/* ── Incident history ── */
.incident-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.875rem;
  transition: background 0.15s;
  text-decoration: none;
  color: inherit;
}

a.incident-row { display: flex; }

.incident-row:last-child { border-bottom: none; }

.incident-row:hover {
  background: var(--purple-glow);
  margin: 0 -0.5rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  border-radius: 6px;
}

.status-dot {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

.status-dot.completed { color: var(--green); }
.status-dot.failed { color: var(--red); }
.status-dot.running { color: var(--amber); }

/* ── Alerts ── */
.alert {
  padding: 0.875rem 1rem;
  border-radius: var(--radius);
  margin: 1rem 0;
  font-size: 0.875rem;
  line-height: 1.5;
}

.alert-warning {
  background: var(--amber-bg);
  color: #92400e;
  border: 1px solid rgba(217, 119, 6, 0.2);
}

.alert-danger {
  background: var(--red-bg);
  color: #991b1b;
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.footnote {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--purple-glow);
  border-radius: 6px;
  font-style: normal;
}

.empty {
  color: var(--text-muted);
  font-size: 0.875rem;
  padding: 3rem 1.5rem;
  text-align: center;
  line-height: 1.6;
}

.empty-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

.result-banner {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--purple-glow);
  border: 1px solid var(--brand-ring);
  border-radius: var(--radius);
  font-size: 0.875rem;
}

.result-banner code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  background: var(--surface);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
}

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
}

/* ── Incident workspace ── */
.incident-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding: 1rem 1.25rem;
}

.incident-meta .meta-item {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.incident-meta .meta-item strong {
  color: var(--text);
  font-family: var(--font-mono);
  font-weight: 500;
}

.incident-meta .meta-item.highlight strong {
  color: var(--purple);
}

.incident-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

@media (max-width: 960px) {
  .incident-split { grid-template-columns: 1fr; }
}

/* ── Execution chain · 复用 What-if 逻辑链样式 ── */
.execution-chain {
  margin-bottom: 1.25rem;
}

#execution-chain-body.whatif-panel {
  padding-top: 0;
}

/* ── 把握度页 · 高级分析（原 Ultra） ── */
.advanced-panels {
  margin-top: 1.25rem;
}

.advanced-side {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.advanced-panel-body {
  padding: 0 1rem 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: var(--leading);
}

.whatif-controls {
  padding: 0 1rem 1rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.pipeline-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  margin-bottom: 1.25rem;
}

.pipeline-step {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: border-color 0.15s, background 0.15s;
}

.pipeline-step.done {
  background: var(--brand-light);
  border-color: var(--brand-ring);
  color: var(--brand);
}

.pipeline-step.active {
  background: var(--purple);
  border-color: var(--purple);
  color: #fff;
}

.pipeline-arrow {
  color: var(--text-muted);
  font-size: 0.75rem;
  user-select: none;
}

.causal-chain {
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}

.causal-chain h4 {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.875rem;
}

.causal-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 1.25rem;
}

.causal-steps::before {
  content: "";
  position: absolute;
  left: 0.3125rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--purple-muted), var(--purple));
  border-radius: 1px;
}

.causal-step {
  position: relative;
  padding: 0.625rem 0 0.625rem 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.causal-step::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 0.875rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--purple);
}

.causal-step:first-child::before {
  background: var(--purple);
}

.causal-step strong {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 0.125rem;
}

.incident-row.selected {
  background: var(--purple-glow);
  margin: 0 -0.5rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  border-radius: 6px;
}

.trace-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1.25rem;
  background: var(--brand-glow);
  border: 1px solid var(--brand-ring);
  border-radius: var(--radius);
  font-size: 0.8125rem;
}

.trace-banner a {
  color: var(--purple);
  font-weight: 600;
  text-decoration: none;
}

.trace-banner a:hover { text-decoration: underline; }

/* ── Ultra: 知识图谱 · 分层流程图（可读性优先） ── */
.kg-topology-wrap {
  position: relative;
  padding: 0 1rem 1rem;
  min-height: 280px;
}

.kg-topology-wrap[data-empty="1"] .kg-readable-graph {
  opacity: 0.15;
}

.kg-topology-wrap[data-empty="1"]::after {
  content: "暂无图谱数据，请先在「场景」页触发 S1/S2/S3";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  pointer-events: none;
}

.kg-readable-graph {
  position: relative;
  z-index: 1;
  width: 100%;
}

.kg-readable-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 0.75rem 0.5rem 0.25rem;
}

.kg-tier-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: -0.375rem;
}

.kg-flow-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.625rem;
}

.kg-flow-row.main {
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--accent-soft, var(--brand-light)), var(--surface));
  border: 1px solid var(--accent-border, var(--brand-ring));
  border-radius: 12px;
}

.kg-flow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.kg-flow-arrow {
  font-size: 0.875rem;
  color: var(--purple);
  font-weight: 600;
}

.kg-card-node {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 7rem;
  max-width: 11rem;
  padding: 0.625rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.kg-card-node.kg-hub {
  border-width: 2px;
  border-color: var(--kg-incident);
  box-shadow: 0 2px 8px color-mix(in srgb, var(--kg-incident) 22%, transparent);
}

.kg-card-type {
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
}

.kg-card-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.35;
  word-break: break-word;
}

.kg-card-node.kg-agent { background: var(--kg-agent); border-color: color-mix(in srgb, var(--kg-agent) 72%, black); }
.kg-card-node.kg-incident { background: var(--kg-incident); border-color: color-mix(in srgb, var(--kg-incident) 72%, black); }
.kg-card-node.kg-playbook { background: var(--kg-playbook); border-color: color-mix(in srgb, var(--kg-playbook) 72%, black); }
.kg-card-node.kg-root_cause { background: var(--kg-root); border-color: color-mix(in srgb, var(--kg-root) 72%, black); }
.kg-card-node.kg-action { background: var(--kg-action); border-color: color-mix(in srgb, var(--kg-action) 72%, black); }
.kg-card-node.kg-score,
.kg-card-node.kg-score-final { background: var(--kg-score); border-color: color-mix(in srgb, var(--kg-score) 72%, black); }

.kg-causal-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: 1.25rem;
  position: relative;
}

.kg-causal-list::before {
  content: "";
  position: absolute;
  left: 0.375rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--red) 55%, white), var(--red));
  border-radius: 1px;
}

.kg-causal-item {
  position: relative;
  padding: 0.625rem 0.875rem 0.625rem 1rem;
  margin-bottom: 0.25rem;
  background: var(--red-bg);
  border: 1px solid color-mix(in srgb, var(--red) 28%, transparent);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.45;
}

.kg-causal-item::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 50%;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: -0.25rem;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 3px var(--surface);
}

.kg-causal-connector {
  padding: 0.125rem 0 0.125rem 1rem;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.kg-action-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
}

.kg-action-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  background: var(--green-bg);
  border: 1px solid color-mix(in srgb, var(--green) 28%, transparent);
  border-radius: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.35;
}

.kg-action-chip .risk-tag {
  font-style: normal;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.kg-action-chip .risk-tag.risk-high { background: var(--red-bg); color: var(--red); }
.kg-action-chip .risk-tag.risk-medium { background: var(--amber-bg); color: var(--amber); }
.kg-action-chip .risk-tag.risk-low { background: var(--green-bg); color: var(--green); }

.kg-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  padding: 0 1rem 0.75rem;
  font-size: 0.6875rem;
  color: var(--text-muted);
}

.kg-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.25rem;
  vertical-align: middle;
}

.kg-dot.agent { background: var(--kg-agent); }
.kg-dot.incident { background: var(--kg-incident); }
.kg-dot.playbook { background: var(--kg-playbook); }
.kg-dot.root_cause { background: var(--kg-root); }
.kg-dot.action { background: var(--kg-action); }
.kg-dot.score { background: var(--kg-score); }

@media (max-width: 720px) {
  .kg-flow-row.main {
    flex-direction: column;
    align-items: stretch;
  }
  .kg-flow-link {
    justify-content: center;
    padding: 0.125rem 0;
  }
  .kg-card-node {
    max-width: none;
  }
}

/* ── Ultra: What-if 逻辑链 · 纵向因果轨 ── */
.whatif-panel { padding: 0 1rem 1rem; }

.logic-ontology-rail {
  position: relative;
  padding-left: 2.5rem;
  margin-top: 0.5rem;
}

.logic-ontology-rail::before {
  content: "";
  position: absolute;
  left: 0.875rem;
  top: 0.75rem;
  bottom: 0.75rem;
  width: 2px;
  background: linear-gradient(180deg, var(--purple-muted), var(--purple));
  border-radius: 1px;
}

.logic-rail-step {
  position: relative;
  margin-bottom: 0.25rem;
}

.logic-rail-marker {
  position: absolute;
  left: -1.65rem;
  top: 1rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--purple);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.6875rem;
  font-weight: 700;
  box-shadow: 0 0 0 4px var(--surface);
  z-index: 1;
}

.logic-rail-step:nth-child(odd) .logic-rail-marker { background: var(--brand-600); }
.logic-rail-step:nth-child(even) .logic-rail-marker { background: var(--brand-500); }

.logic-rail-body {
  margin-bottom: 0.5rem;
  padding: 1rem 1.125rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.logic-rail-head {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.75rem;
}

.logic-rail-head strong {
  font-size: 0.875rem;
  color: var(--purple);
}

.logic-rail-head span {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.logic-rail-connector {
  margin-left: 0.55rem;
  height: 1.25rem;
  color: var(--purple-muted);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.logic-rail-chain {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

.logic-rail-node {
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.8125rem;
  border: 1px solid var(--border);
  background: var(--bg);
}

.logic-rail-node.root {
  border-left: 3px solid var(--red);
}

.logic-rail-link {
  font-size: 0.6875rem;
  color: var(--text-muted);
  padding-left: 0.5rem;
}

.logic-rail-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.logic-rail-flow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.8125rem;
}

.logic-rail-pill {
  padding: 0.25rem 0.625rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.logic-rail-pill.accent {
  background: var(--brand-light);
  border-color: var(--brand-ring);
  color: var(--brand);
}

.logic-link-rel {
  min-width: 4rem;
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-weight: 500;
}

/* ── page-app · 组件微调（统一深色色板） ── */
body.page-app .scenario-card .expected,
body.page-app .factor,
body.page-app .impact-text,
body.page-app .pipeline-step {
  background: var(--surface-elevated);
}

body.page-app .scenario-card,
body.page-app .logic-rail-body {
  background: var(--surface);
}

body.page-app .stack-layer.active {
  background: var(--brand-glow);
}

body.page-app .trace-banner {
  border-color: var(--accent-border);
}

body.page-app .subnav a.active::after {
  background: var(--accent-bright);
}

body.page-app .flywheel-node {
  background: var(--canvas-elevated);
}

/* ── 夜间模式 · 组件微调（兼容 data-theme） ── */
[data-theme="dark"] .kg-flow-row.main {
  background: linear-gradient(135deg, var(--accent-soft, rgba(14, 165, 233, 0.1)), var(--surface));
  border-color: var(--accent-border, rgba(56, 189, 248, 0.2));
}

[data-theme="dark"] .kg-causal-item {
  background: var(--red-bg);
  border-color: color-mix(in srgb, var(--red) 35%, transparent);
}

[data-theme="dark"] .kg-action-chip {
  background: var(--green-bg);
  border-color: color-mix(in srgb, var(--green) 28%, transparent);
}

[data-theme="dark"] .scenario-card .expected,
[data-theme="dark"] .factor,
[data-theme="dark"] .impact-text,
[data-theme="dark"] .pipeline-step {
  background: var(--surface-elevated);
}

[data-theme="dark"] .card,
[data-theme="dark"] .scenario-card,
[data-theme="dark"] .logic-rail-body {
  background: var(--surface);
}

[data-theme="dark"] .stack-layer.active {
  background: var(--brand-glow);
}