:root {
  --ink: #172026;
  --muted: #5c6670;
  --paper: #f5f7f4;
  --surface: rgba(255, 255, 252, 0.92);
  --surface-soft: rgba(255, 255, 252, 0.72);
  --line: rgba(23, 32, 38, 0.14);
  --line-strong: rgba(23, 32, 38, 0.28);
  --green: #176b53;
  --blue: #255b8d;
  --amber: #9a681f;
  --red: #a13a3f;
  --violet: #6251a8;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(37, 91, 141, 0.08), transparent 32%),
    linear-gradient(120deg, rgba(23, 107, 83, 0.08), transparent 28%),
    var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(23, 32, 38, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 32, 38, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

a {
  color: inherit;
}

.china-flow-shell {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: clamp(18px, 3.4vw, 42px);
}

.topbar,
.decision-band,
.resonance-section,
.route-section,
.landing-section,
.source-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 22px 70px rgba(23, 32, 38, 0.08);
}

.topbar {
  display: grid;
  gap: 24px;
  padding: clamp(18px, 3vw, 30px);
}

.tool-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-nav a,
.plain-link {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 252, 0.66);
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 760;
  text-decoration: none;
}

.title-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 360px);
  gap: 18px;
  align-items: end;
}

.title-copy {
  min-width: 0;
}

.kicker,
.panel-kicker {
  margin: 0 0 6px;
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(2.6rem, 6vw, 5.8rem);
  line-height: 0.94;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.22rem, 2.4vw, 1.65rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 0.98rem;
}

.hero-read {
  max-width: 920px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  font-weight: 650;
  line-height: 1.7;
}

.sync-panel {
  display: grid;
  gap: 8px;
  justify-items: end;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.sync-panel span,
.cadence,
.state-pill,
.status-dot {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 252, 0.78);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 780;
}

.sync-panel strong {
  font-size: 1.45rem;
}

.decision-band {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 0;
}

.decision-panel,
.check-panel,
.resonance-section,
.route-section,
.landing-section,
.source-section {
  padding: clamp(16px, 2.6vw, 24px);
}

.decision-panel {
  border-right: 1px solid var(--line);
}

.panel-head,
.section-head,
.scale-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  justify-content: space-between;
}

.score-row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-top: 18px;
}

.score-ring {
  display: grid;
  width: 112px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, var(--surface) 55%, transparent 56%),
    conic-gradient(var(--green) var(--score, 0%), rgba(23, 32, 38, 0.12) 0);
  color: var(--green);
  font-size: 1.55rem;
  font-weight: 880;
}

.score-row p {
  margin-bottom: 8px;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.65;
}

.score-row small {
  color: var(--muted);
  line-height: 1.55;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
}

.kpi-grid,
.scale-grid,
.landing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.kpi-card,
.scale-card,
.landing-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 16px 46px rgba(23, 32, 38, 0.06);
}

.kpi-card {
  display: grid;
  gap: 6px;
  min-height: 116px;
  padding: 16px;
}

.kpi-card span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 760;
}

.kpi-card strong {
  font-size: 2rem;
}

.kpi-card small {
  color: var(--muted);
}

.scale-card {
  display: grid;
  gap: 14px;
  min-width: 0;
  padding: 18px;
}

.scale-head strong {
  color: var(--blue);
  font-size: 1.6rem;
}

.scale-card > p,
.section-read {
  margin-bottom: 0;
  color: var(--muted);
  font-weight: 650;
  line-height: 1.6;
}

.mini-group {
  display: grid;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.signal-row,
.metric-row,
.text-row,
.rank-row,
.route-link {
  display: grid;
  grid-template-columns: minmax(110px, 0.85fr) minmax(88px, auto);
  gap: 8px 12px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid rgba(23, 32, 38, 0.08);
}

.signal-row small,
.metric-row small,
.text-row small,
.rank-row small,
.route-link small {
  grid-column: 1 / -1;
  color: var(--muted);
  line-height: 1.45;
}

.signal-row span,
.metric-row strong,
.rank-row strong,
.route-link strong {
  justify-self: end;
  font-weight: 850;
}

.resonance-section,
.route-section,
.landing-section,
.source-section {
  display: grid;
  gap: 16px;
}

.conflict-list,
.confirm-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.conflict-list span,
.confirm-list span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 252, 0.72);
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 680;
}

.node-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.route-node {
  display: grid;
  gap: 8px;
  min-height: 88px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 252, 0.72);
}

.route-node span {
  color: var(--muted);
  font-weight: 760;
}

.route-node strong {
  font-size: 1.4rem;
}

.link-list {
  display: grid;
  gap: 4px;
  margin-top: 14px;
}

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

.landing-grid article {
  padding: 16px;
}

.rank-list {
  display: grid;
  gap: 2px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 920px;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid rgba(23, 32, 38, 0.1);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
}

td {
  color: var(--ink);
  line-height: 1.45;
}

td a {
  color: var(--blue);
  font-weight: 760;
}

.tone-pos {
  color: var(--green);
}

.tone-neg {
  color: var(--red);
}

.tone-warn {
  color: var(--amber);
}

.tone-flat {
  color: var(--blue);
}

.empty {
  color: var(--muted);
}

@media (max-width: 1080px) {
  .kpi-grid,
  .scale-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .node-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .china-flow-shell {
    padding: 14px;
  }

  .title-row,
  .decision-band,
  .score-row,
  .kpi-grid,
  .scale-grid,
  .landing-grid,
  .node-strip {
    grid-template-columns: 1fr;
  }

  .decision-panel {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .sync-panel {
    justify-items: start;
  }

  .panel-head,
  .section-head,
  .scale-head {
    display: grid;
  }

  .signal-row,
  .metric-row,
  .text-row,
  .rank-row,
  .route-link {
    grid-template-columns: minmax(0, 1fr);
  }

  .signal-row span,
  .metric-row strong,
  .rank-row strong,
  .route-link strong {
    justify-self: start;
  }
}