:root {
  --paper: #f7f4ed;
  --ink: #171717;
  --muted: #68635d;
  --line: #d8d0c3;
  --panel: #fffdf7;
  --black: #111111;
  --red: #d62b1f;
  --yellow: #f6c744;
  --cyan: #1e8fa3;
  --green: #337a53;
  --shadow: 0 18px 42px rgba(21, 18, 12, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(17, 17, 17, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(17, 17, 17, 0.028) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

button,
select,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px;
  background: var(--black);
  color: #fff8e7;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--red), #8c160f);
  border: 2px solid var(--yellow);
  font-weight: 900;
  letter-spacing: 0;
}

.brand-lockup small,
.side-note span,
.eyebrow,
.section-kicker {
  display: block;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.sidebar .brand-lockup small,
.side-note span {
  color: #c7bda6;
}

.nav-list {
  display: grid;
  gap: 8px;
}

.nav-item {
  width: 100%;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  color: #fff8e7;
  text-align: left;
  padding: 10px 12px;
  cursor: pointer;
}

.nav-item:hover,
.nav-item.active {
  background: var(--yellow);
  color: var(--black);
}

.side-note {
  margin-top: auto;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
}

.main-panel {
  padding: 28px;
  overflow: hidden;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 24px;
}

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

h1 {
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.08;
  margin-bottom: 0;
}

h2 {
  font-size: clamp(22px, 2vw, 32px);
  margin-bottom: 8px;
}

h3 {
  font-size: 17px;
  margin-bottom: 14px;
}

.top-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.select-label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}

select {
  min-width: 160px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  padding: 10px 12px;
}

.status-pill,
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  border-radius: 999px;
  padding: 6px 10px;
  background: #e9f0dd;
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 18px;
  margin-bottom: 18px;
}

.hero-copy,
.panel,
.metric-card,
.opportunity-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.92);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 28px;
}

.hero-copy p:last-child,
.section-head p {
  color: var(--muted);
  line-height: 1.7;
}

.signal-map {
  position: relative;
  min-height: 260px;
  border-radius: 8px;
  border: 1px solid #211d18;
  background:
    radial-gradient(circle at 50% 50%, rgba(246, 199, 68, 0.22), transparent 32%),
    linear-gradient(135deg, #2b2924, #111);
  overflow: hidden;
}

.signal-map::before,
.signal-map::after {
  content: "";
  position: absolute;
  inset: 42px;
  border: 1px dashed rgba(246, 199, 68, 0.35);
  border-radius: 50%;
}

.signal-map::after {
  inset: 78px;
  border-color: rgba(255, 255, 255, 0.18);
}

.battery-core {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 118px;
  height: 72px;
  border: 2px solid var(--yellow);
  border-radius: 7px;
  background: var(--red);
  color: #fff;
  display: grid;
  place-items: center;
  text-align: center;
  z-index: 2;
}

.battery-core::after {
  content: "";
  position: absolute;
  right: -10px;
  width: 8px;
  height: 26px;
  background: var(--yellow);
  border-radius: 0 3px 3px 0;
}

.battery-core span {
  font-size: 13px;
  font-weight: 900;
}

.battery-core strong {
  font-size: 14px;
}

.map-node {
  position: absolute;
  display: grid;
  place-items: center;
  width: 62px;
  height: 34px;
  border-radius: 999px;
  background: var(--panel);
  color: var(--black);
  font-size: 13px;
  font-weight: 800;
}

.n1 { left: 18%; top: 18%; }
.n2 { right: 18%; top: 15%; }
.n3 { left: 9%; bottom: 22%; }
.n4 { right: 10%; bottom: 23%; }
.n5 { left: 40%; top: 7%; }
.n6 { right: 39%; bottom: 8%; }

.kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.metric-card {
  padding: 16px;
}

.metric-card span {
  color: var(--muted);
  font-size: 12px;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
}

.metric-card em {
  display: block;
  margin-top: 6px;
  color: var(--green);
  font-style: normal;
  font-size: 12px;
  font-weight: 800;
}

.content-section {
  display: none;
}

.content-section.active {
  display: block;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin: 26px 0 14px;
}

.section-head p {
  max-width: 560px;
  margin-bottom: 0;
}

.opportunity-grid,
.model-grid,
.tracking-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.supply-panel {
  margin-top: 14px;
}

.supply-grid,
.advice-grid {
  display: grid;
  gap: 12px;
}

.supply-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 12px;
}

.advice-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.supply-card,
.advice-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
  padding: 14px;
}

.supply-card {
  display: grid;
  gap: 12px;
  min-height: 190px;
}

.supply-card span {
  color: var(--muted);
  font-size: 12px;
}

.supply-card strong {
  font-size: 22px;
}

.supply-card em {
  align-self: end;
  justify-self: start;
  border-radius: 999px;
  background: #23322a;
  color: #f7f1e6;
  padding: 6px 10px;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.advice-item strong {
  display: block;
  margin-bottom: 6px;
  color: var(--red);
}

.decision-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  margin-top: 14px;
}

.c2m-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.c2m-card {
  position: relative;
  min-height: 190px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 22px 18px 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.c2m-card span {
  position: absolute;
  right: 12px;
  top: -22px;
  color: rgba(214, 43, 31, 0.12);
  font-size: 112px;
  font-weight: 900;
  line-height: 1;
}

.c2m-card strong {
  position: relative;
  display: block;
  margin-bottom: 12px;
  font-size: 20px;
}

.c2m-card p {
  position: relative;
}

.centers-panel,
.value-chain-panel {
  margin-bottom: 14px;
}

.center-grid,
.value-chain-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.axes-panel {
  margin-bottom: 14px;
}

.axes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.axis-card {
  display: grid;
  gap: 14px;
  min-height: 210px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
  padding: 16px;
}

.axis-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
}

.axis-card strong {
  display: block;
  font-size: 24px;
}

.axis-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-self: end;
}

.axis-checks em {
  border: 1px solid rgba(214, 43, 31, 0.32);
  border-radius: 999px;
  background: #fdf0df;
  color: var(--red);
  padding: 5px 8px;
  font-style: normal;
  font-size: 12px;
  font-weight: 900;
}

.value-chain-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.factory-panel {
  margin-bottom: 14px;
}

.factory-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.factory-card {
  display: grid;
  gap: 10px;
  min-height: 198px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
  padding: 14px;
}

.factory-card span {
  color: var(--muted);
  font-size: 12px;
}

.factory-card strong {
  display: block;
  font-size: 20px;
}

.factory-card em {
  align-self: end;
  justify-self: start;
  border-radius: 999px;
  background: #23322a;
  color: #f7f1e6;
  padding: 6px 10px;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.center-card,
.value-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf6eb;
  padding: 14px;
}

.center-card strong,
.value-card strong {
  display: block;
  margin-bottom: 6px;
}

.center-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
}

.execution-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 14px;
  margin-bottom: 14px;
}

.loop-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.loop-step,
.action-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf6eb;
  padding: 11px;
}

.loop-step span {
  display: block;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  margin-bottom: 6px;
}

.loop-step strong,
.action-item strong {
  display: block;
}

.action-list {
  display: grid;
  gap: 8px;
}

.c2m-columns {
  align-items: start;
}

.paradox-list,
.simulation-list {
  display: grid;
  gap: 10px;
}

.paradox-item,
.simulation-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf6eb;
  padding: 12px;
}

.paradox-item strong,
.simulation-item strong {
  display: block;
  margin-bottom: 5px;
}

.paradox-item b {
  display: block;
  color: var(--green);
  font-size: 13px;
  line-height: 1.6;
}

.decision-list,
.check-list {
  display: grid;
  gap: 10px;
}

.decision-item,
.check-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf6eb;
  padding: 12px;
}

.decision-item strong,
.check-item strong {
  display: block;
  margin-bottom: 5px;
}

.check-item {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 9px;
}

.check-item span {
  width: 12px;
  height: 12px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(51, 122, 83, 0.12);
}

.opportunity-card {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.card-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.score-ring {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: conic-gradient(var(--red) var(--score), #eee0c9 0);
  font-weight: 900;
}

.score-ring span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--panel);
}

.card-meta,
.mini-copy,
.dense-list,
td {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.chip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 8px;
  background: #fbf0d1;
  font-size: 12px;
  font-weight: 700;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.flow-step,
.model-card,
.track-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
}

.flow-step b {
  display: block;
  color: var(--red);
  margin-bottom: 8px;
}

.two-column,
.similarity-layout,
.price-lab {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 14px;
}

.good-price-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 14px;
  margin-top: 14px;
}

.lever-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.lever-card,
.gate-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbf6eb;
  padding: 12px;
}

.lever-card strong,
.gate-item span {
  display: block;
  margin-bottom: 6px;
  font-weight: 900;
}

.gate-item span {
  color: var(--red);
}

.gate-list {
  display: grid;
  gap: 10px;
}

.low-price-flywheel-panel {
  margin-top: 14px;
}

.price-calibration-panel {
  margin-top: 14px;
}

.panel-headline {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.panel-headline p:last-child {
  max-width: 480px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.flywheel-grid,
.calibration-grid,
.operating-grid {
  display: grid;
  gap: 12px;
}

.flywheel-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.calibration-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flywheel-step,
.calibration-card,
.operating-gate {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
}

.flywheel-step {
  min-height: 170px;
  padding: 14px;
  position: relative;
}

.flywheel-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  border-radius: 999px;
  background: var(--black);
  color: #fff7e9;
  font-weight: 900;
  font-size: 12px;
}

.flywheel-step strong,
.calibration-card strong,
.operating-gate strong {
  display: block;
  margin-bottom: 8px;
}

.calibration-card {
  display: grid;
  gap: 10px;
  min-height: 188px;
  padding: 14px;
}

.calibration-card span {
  color: var(--muted);
  font-size: 12px;
}

.calibration-card em {
  align-self: end;
  justify-self: start;
  border-radius: 999px;
  background: #fdf0df;
  color: var(--red);
  padding: 6px 10px;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

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

.brand-growth-panel {
  margin-top: 14px;
}

.brand-growth-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.brand-growth-card {
  display: grid;
  gap: 10px;
  min-height: 198px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffaf0;
  padding: 14px;
}

.brand-growth-card span {
  color: var(--muted);
  font-size: 12px;
}

.brand-growth-card strong {
  display: block;
  font-size: 20px;
}

.brand-growth-card em {
  align-self: end;
  justify-self: start;
  border-radius: 999px;
  background: #23322a;
  color: #f7f1e6;
  padding: 6px 10px;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.operating-gate {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 14px;
}

.operating-gate span {
  white-space: nowrap;
  border-radius: 999px;
  background: #23322a;
  color: #f7f1e6;
  padding: 5px 9px;
  font-size: 12px;
  font-weight: 900;
}

.panel {
  padding: 18px;
}

.bar-list {
  display: grid;
  gap: 12px;
}

.bar-row {
  display: grid;
  gap: 6px;
}

.bar-label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

.bar-track {
  height: 10px;
  border-radius: 999px;
  background: #ebe2d2;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--red), var(--yellow), var(--cyan));
}

.compact .bar-track {
  height: 8px;
}

.relation-graph {
  position: relative;
  min-height: 270px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: #fbf6eb;
}

.relation-node {
  position: absolute;
  max-width: 112px;
  min-height: 42px;
  display: grid;
  place-items: center;
  text-align: center;
  border-radius: 6px;
  padding: 8px;
  background: #111;
  color: #fff8e7;
  font-size: 12px;
  font-weight: 800;
  z-index: 2;
}

.relation-line {
  position: absolute;
  height: 2px;
  transform-origin: 0 0;
  background: rgba(214, 43, 31, 0.55);
}

.table-wrap {
  overflow-x: auto;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--ink);
  font-size: 13px;
  background: #f0e7d6;
}

tr:last-child td {
  border-bottom: 0;
}

.model-card strong,
.track-card strong {
  display: block;
  margin-bottom: 8px;
}

.range-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  color: var(--muted);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--red);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.mini-metric {
  padding: 13px;
  border-radius: 8px;
  background: #f4ead7;
}

.mini-metric span {
  color: var(--muted);
  font-size: 12px;
}

.mini-metric strong {
  display: block;
  margin-top: 6px;
  font-size: 22px;
}

.price-curve {
  display: flex;
  align-items: end;
  gap: 8px;
  min-height: 260px;
  padding-top: 16px;
}

.curve-bar {
  flex: 1;
  min-width: 26px;
  display: grid;
  align-items: end;
  gap: 6px;
  text-align: center;
}

.curve-bar i {
  display: block;
  border-radius: 5px 5px 0 0;
  background: var(--cyan);
}

.curve-bar.active i {
  background: var(--red);
}

.curve-bar span {
  color: var(--muted);
  font-size: 11px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.timeline-step {
  border-left: 4px solid var(--red);
  padding-left: 12px;
}

.timeline-step strong {
  display: block;
  margin-bottom: 6px;
}

@media (max-width: 1060px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

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

  .hero-grid,
  .two-column,
  .similarity-layout,
  .price-lab,
  .good-price-grid {
    grid-template-columns: 1fr;
  }

  .kpi-strip,
  .opportunity-grid,
  .model-grid,
  .supply-grid,
  .advice-grid,
  .tracking-grid,
  .c2m-grid,
  .center-grid,
  .axes-grid,
  .value-chain-grid,
  .factory-grid,
  .execution-grid,
  .decision-layout,
  .flywheel-grid,
  .calibration-grid,
  .operating-grid,
  .brand-growth-grid,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .main-panel {
    padding: 16px;
  }

  .topbar,
  .section-head {
    display: grid;
  }

  .nav-list,
  .workflow,
  .kpi-strip,
  .opportunity-grid,
  .model-grid,
  .supply-grid,
  .advice-grid,
  .tracking-grid,
  .c2m-grid,
  .center-grid,
  .axes-grid,
  .value-chain-grid,
  .factory-grid,
  .execution-grid,
  .loop-list,
  .decision-layout,
  .timeline,
  .lever-grid,
  .flywheel-grid,
  .calibration-grid,
  .operating-grid,
  .brand-growth-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .panel-headline,
  .operating-gate {
    grid-template-columns: 1fr;
    display: grid;
  }

  .signal-map {
    min-height: 220px;
  }
}