:root {
  --black: #111111;
  --warm: #f5f3ef;
  --rock: #b7b7b7;
  --metal: #7a7d80;
  --white: #ffffff;
  --scale: 1;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #292929;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  letter-spacing: 0;
}

button {
  font: inherit;
}

.viewport {
  position: fixed;
  inset: 0;
  overflow: hidden;
}

.slide {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1280px;
  height: 720px;
  overflow: hidden;
  transform: translate(-50%, -50%) scale(var(--scale));
  transform-origin: center;
  --metal: #8f9296;
  background: var(--black);
  color: var(--warm);
}

.slide.dark {
  background: var(--black);
  color: var(--warm);
}

.slide.metal {
  background: var(--black);
  color: var(--warm);
}

.kicker,
.page-no,
.footer {
  position: absolute;
  z-index: 5;
  color: var(--metal);
  font-weight: 700;
}

.dark .kicker,
.dark .page-no,
.dark .footer,
.metal .kicker,
.metal .page-no,
.metal .footer {
  color: var(--rock);
}

.kicker {
  left: 72px;
  top: 38px;
  font-size: 16px;
}

.page-no {
  right: 72px;
  top: 38px;
  font: 700 15px/1 Arial, sans-serif;
}

.footer {
  left: 72px;
  bottom: 18px;
  width: 1136px;
  border-top: 1px solid var(--rock);
  padding-top: 8px;
  font-size: 11px;
  font-weight: 400;
}

.dark .footer,
.metal .footer {
  border-color: var(--metal);
}

.content {
  position: absolute;
  inset: 82px 72px 66px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 58px;
  line-height: 1.08;
  font-weight: 800;
}

h2 {
  font-size: 34px;
  line-height: 1.18;
  font-weight: 700;
}

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

.dark .muted,
.metal .muted {
  color: var(--rock);
}

.hero-copy {
  font-size: 72px;
  line-height: 1.08;
  font-weight: 800;
}

.display-number {
  font-family: "Aptos Display", Arial, sans-serif;
  font-size: 202px;
  line-height: 0.88;
  font-weight: 800;
}

.cover-title {
  position: absolute;
  left: 76px;
  top: 132px;
  width: 1000px;
  font-size: 66px;
  line-height: 1.42;
  font-weight: 800;
}

.cover-rule {
  position: absolute;
  left: 76px;
  top: 456px;
  width: 570px;
  height: 2px;
  background: var(--rock);
}

.cover-subtitle {
  position: absolute;
  left: 76px;
  top: 486px;
  color: var(--rock);
  font-size: 24px;
}

.cover-brand {
  position: absolute;
  left: 76px;
  bottom: 78px;
  color: var(--metal);
  font-size: 18px;
  font-weight: 700;
}

.cover-stripe-a,
.cover-stripe-b {
  position: absolute;
  top: 0;
  height: 720px;
}

.cover-stripe-a {
  right: 164px;
  width: 90px;
  background: var(--metal);
}

.cover-stripe-b {
  right: 0;
  width: 164px;
  background: var(--rock);
}

.metric-layout {
  padding-top: 66px;
}

.metric-main {
  display: flex;
  align-items: center;
  gap: 36px;
}

.project-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 44px;
  color: var(--metal);
  font-size: 22px;
  font-weight: 700;
}

.project-eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--metal);
}

.metric-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 48px;
  font-size: 28px;
  font-weight: 700;
}

.metric-meta .sep {
  color: var(--rock);
  font-weight: 400;
}

.metric-unit {
  color: var(--metal);
  font-size: 60px;
  font-weight: 800;
}

.metric-label {
  margin-top: 92px;
  font-size: 30px;
  font-weight: 800;
}

.metric-question {
  margin-top: 34px;
  color: var(--metal);
  font-size: 26px;
}

.reveal-layout {
  display: grid;
  grid-template-columns: 520px 1fr;
  align-items: center;
  gap: 74px;
  height: 100%;
}

.reveal-one {
  font: 800 318px/0.9 "Aptos Display", Arial, sans-serif;
}

.reveal-word {
  font-size: 76px;
  font-weight: 800;
}

.reveal-contrast {
  margin-top: 30px;
  font-size: 34px;
  font-weight: 800;
}

.reveal-note {
  margin-top: 28px;
  color: var(--rock);
  font-size: 30px;
  line-height: 1.5;
}

.tool-reveal h1 {
  margin-top: 34px;
  font-size: 76px;
}

.tool-reveal .builder-sub {
  margin-top: 20px;
  font-size: 42px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--rock);
}

.tool-reveal .rule,
.section-rule {
  height: 2px;
  background: var(--metal);
}

.tool-reveal .rule {
  margin-top: 70px;
}

.tool-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 38px;
  align-items: start;
  margin-top: 52px;
}

.tool-row .ai {
  color: var(--metal);
  font: 800 74px/1 Arial, sans-serif;
}

.tool-row h2 {
  margin-top: 30px;
  font-size: 38px;
}

.tool-row p {
  margin-top: 0;
  color: var(--metal);
  font-size: 26px;
}

.question-layout {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  gap: 64px;
}

.question-layout h1 {
  font-size: 64px;
  line-height: 1.12;
}

.logic-chain {
  display: grid;
  grid-template-columns: 205px 205px 260px 330px;
  margin-top: 140px;
}

.logic-chain > div {
  height: 116px;
  display: grid;
  place-items: center;
  padding: 16px;
  background: var(--rock);
  color: var(--warm);
  font-size: 27px;
  font-weight: 800;
  text-align: center;
}

.logic-chain > div:nth-child(2) {
  background: var(--metal);
}

.logic-chain > div:nth-child(4) {
  background: #3a3d40;
}

.logic-note {
  margin-top: 90px;
  color: var(--metal);
  font-size: 30px;
}

.process-subtitle {
  margin-top: 14px;
  color: var(--metal);
  font-size: 30px;
}

.process-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
  margin-top: 112px;
}

.process-row > div {
  min-height: 132px;
  display: grid;
  place-items: center;
  background: #3a3d40;
  color: var(--warm);
  padding: 18px;
  text-align: center;
  font-size: 28px;
  line-height: 1.2;
  font-weight: 800;
}

.process-row > div:nth-child(even) {
  background: var(--metal);
}

.process-conclusion {
  margin-top: 78px;
  font-size: 32px;
  font-weight: 800;
}

.role-split {
  position: absolute;
  inset: 86px 0 74px;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.role-pane {
  padding: 42px 72px;
}

.role-pane:first-child {
  background: #3a3d40;
  color: var(--warm);
}

.role-pane h2 {
  font-size: 40px;
}

.role-list {
  list-style: none;
  padding: 0;
  margin: 42px 0 0;
}

.role-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 22px;
  align-items: center;
  min-height: 86px;
  font-size: 28px;
}

.role-list b {
  color: var(--metal);
  font: 700 20px/1 Arial, sans-serif;
}

.role-pane:last-child .role-list b {
  color: var(--rock);
}

.two-part-statement {
  display: grid;
  grid-template-rows: 1fr 3px 1fr;
  height: 100%;
  align-items: center;
}

.two-part-statement h1 {
  font-size: 64px;
  line-height: 1.12;
}

.two-part-statement .separator {
  height: 3px;
  background: var(--metal);
}

.golden-quote {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: 100%;
  padding: 110px 48px 0;
}

.golden-setup {
  font-size: 52px;
  line-height: 1.2;
  font-weight: 700;
  color: var(--rock);
}

.golden-sep {
  width: 160px;
  height: 3px;
  background: var(--metal);
  margin: 40px 0;
}

.golden-punch {
  font-size: 82px;
  line-height: 1.12;
  font-weight: 800;
  color: var(--warm);
}

.account-scale {
  display: grid;
  grid-template-columns: 680px 1fr;
  align-items: center;
  padding-top: 66px;
}

.account-number {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.account-number .near {
  margin-top: 30px;
  color: var(--metal);
  font-size: 56px;
  font-weight: 800;
}

.account-number .count {
  font: 800 190px/0.95 "Aptos Display", Arial, sans-serif;
}

.account-label {
  font-size: 42px;
  font-weight: 800;
}

.account-question {
  position: absolute;
  left: 0;
  bottom: 94px;
  font-size: 44px;
  font-weight: 800;
}

.number-change {
  display: grid;
  grid-template-columns: 340px 160px 320px 90px;
  align-items: center;
  margin-top: 70px;
}

.number-change .old,
.number-change .new {
  font: 800 202px/0.9 "Aptos Display", Arial, sans-serif;
}

.number-change .old {
  color: var(--rock);
}

.number-change .arrow {
  color: var(--metal);
  font-size: 84px;
  text-align: center;
}

.number-change .unit {
  font-size: 48px;
  font-weight: 800;
}

.number-change-note {
  margin-top: 96px;
  text-align: center;
  font-size: 42px;
  font-weight: 800;
}

.responsibility-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 140px;
}

.responsibility-column h2 {
  font-size: 42px;
}

.responsibility-column .rule {
  height: 4px;
  margin: 34px 0 18px;
  background: var(--rock);
}

.responsibility-column:last-child .rule {
  background: var(--metal);
}

.responsibility-column p {
  padding: 22px 0;
  font-size: 28px;
}

.responsibility-column:last-child p {
  font-weight: 800;
}

.responsibility-note {
  margin-top: 52px;
  color: var(--metal);
  font-size: 34px;
  font-weight: 800;
}

.ai-built {
  padding-top: 28px;
}

.ai-built h1 {
  font-size: 54px;
}

.ai-built-line {
  display: flex;
  align-items: center;
  gap: 78px;
  margin-top: 80px;
}

.ai-built-line .prefix {
  color: var(--metal);
  font-size: 58px;
  font-weight: 800;
}

.ai-built-line .ai {
  font: 800 138px/1 Arial, sans-serif;
}

.ai-built-line .suffix {
  font-size: 58px;
  font-weight: 800;
}

.ai-built .rule {
  height: 2px;
  margin-top: 58px;
  background: var(--rock);
}

.ai-built p {
  margin-top: 40px;
  color: var(--metal);
  font-size: 34px;
}

.transition-layout {
  padding-top: 38px;
}

.transition-layout .lead {
  font-size: 56px;
  font-weight: 800;
}

.transition-layout h1 {
  margin-top: 32px;
  font-size: 86px;
}

.transition-layout .rule {
  width: 840px;
  height: 2px;
  margin-top: 58px;
  background: var(--rock);
}

.transition-layout .questions {
  margin-top: 38px;
  font-size: 38px;
  font-weight: 800;
}

.transition-layout .conclusion {
  margin-top: 62px;
  color: var(--warm);
  font-size: 28px;
}

.chaos-question {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}

.chaos-question h1 {
  font-size: 72px;
}

.chaos-question .why {
  margin-top: 72px;
  color: var(--metal);
  font-size: 44px;
}

.chaos-question .answer {
  margin-top: 26px;
  font-size: 82px;
  font-weight: 800;
}

.equation-list {
  width: 690px;
  margin: 34px auto 0;
}

.equation-list div {
  min-height: 120px;
  display: grid;
  place-items: center;
  border-bottom: 1px solid var(--rock);
  font-size: 58px;
  font-weight: 800;
}

.equation-list div:nth-child(even) {
  color: var(--metal);
}

.equation-list div:last-child {
  border: 0;
  font-size: 52px;
}

.training-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
  margin-top: 104px;
}

.training-flow > div {
  height: 156px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #3a3d40;
  color: var(--warm);
}

.training-flow > div:nth-child(2) {
  background: var(--metal);
}

.training-flow h2 {
  font-size: 34px;
}

.training-flow p {
  margin-top: 24px;
  color: var(--rock);
  font-size: 22px;
}

.training-conclusion {
  margin-top: 78px;
  font-size: 32px;
  font-weight: 800;
}

.standard-bands {
  margin-top: 56px;
}

.standard-band {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 28px;
  align-items: center;
  min-height: 114px;
  border-top: 1px solid var(--rock);
}

.standard-band h2 {
  font-size: 28px;
}

.standard-band p {
  color: var(--metal);
  font-size: 24px;
}

.inequality-layout {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}

.inequality-layout h1 {
  font-size: 82px;
}

.inequality-layout .neq {
  margin: 70px 0 30px;
  color: var(--metal);
  font: 800 90px/1 Arial, sans-serif;
}

.fde-start {
  padding-top: 38px;
}

.fde-start h1 {
  font-size: 74px;
}

.fde-start .not {
  margin-top: 70px;
  color: var(--metal);
  font-size: 46px;
}

.fde-start .rule {
  height: 3px;
  margin-top: 54px;
  background: var(--metal);
}

.fde-start .yes {
  margin-top: 44px;
  font-size: 66px;
  font-weight: 800;
}

.debt-list {
  margin-top: 54px;
}

.debt-row {
  display: grid;
  grid-template-columns: 72px 260px 1fr;
  align-items: center;
  min-height: 104px;
  border-top: 1px solid var(--rock);
}

.debt-row:first-child {
  border-color: var(--rock);
  border-width: 2px;
}

.debt-row .index {
  color: var(--metal);
  font: 700 22px/1 Arial, sans-serif;
}

.debt-row h2 {
  font-size: 30px;
}

.debt-row p {
  color: var(--metal);
  font-size: 24px;
}

.hidden-truth {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
}

.hidden-truth h1 {
  font-size: 76px;
}

.hidden-truth .but {
  margin-top: 66px;
  color: var(--metal);
  font-size: 42px;
}

.hidden-truth .truth {
  margin-top: 28px;
  font-size: 82px;
  font-weight: 800;
}

.hidden-truth .detail {
  margin-top: 62px;
  color: var(--rock);
  font-size: 28px;
}

.asset-compare {
  display: grid;
  grid-template-columns: 430px 130px 1fr;
  align-items: center;
  gap: 50px;
  margin-top: 24px;
}

.asset-compare h1 {
  font-size: 46px;
}

.asset-compare .neq {
  color: var(--metal);
  font: 800 92px/1 Arial, sans-serif;
  text-align: center;
}

.asset-compare .right {
  font-size: 44px;
}

.asset-rule {
  height: 2px;
  margin-top: 58px;
  background: var(--rock);
}

.asset-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  row-gap: 74px;
  margin-top: 62px;
}

.asset-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: center;
}

.asset-item b {
  color: var(--rock);
  font: 700 18px/1 Arial, sans-serif;
}

.asset-item span {
  font-size: 26px;
  font-weight: 800;
}

.fde-flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
  margin-top: 104px;
}

.fde-flow > div {
  min-height: 126px;
  display: grid;
  place-items: center;
  background: #3a3d40;
  color: var(--warm);
  padding: 14px;
  text-align: center;
  font-size: 26px;
  line-height: 1.2;
  font-weight: 800;
}

.fde-flow > div:nth-child(even) {
  background: var(--metal);
}

.fde-delivery {
  margin-top: 76px;
  font-size: 32px;
  font-weight: 800;
}

.fde-definition {
  display: grid;
  grid-template-rows: auto 2px auto;
  gap: 52px;
  padding-top: 18px;
}

.fde-definition h1 {
  font-size: 72px;
}

.fde-definition .rule {
  background: var(--metal);
}

.fde-definition .prefix {
  color: var(--metal);
  font-size: 32px;
}

.fde-definition .definition {
  margin-top: 26px;
  font-size: 54px;
  line-height: 1.16;
  font-weight: 800;
}

.closing-layout h1 {
  font-size: 58px;
}

.closing-layout .sub {
  margin-top: 14px;
  color: var(--metal);
  font-size: 30px;
}

.closing-bands {
  margin-top: 64px;
}

.closing-band {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 8px;
  align-items: center;
  min-height: 120px;
  border-top: 1px solid var(--rock);
}

.closing-band h2 {
  font-size: 28px;
}

.closing-band p {
  color: var(--metal);
  font-size: 24px;
}

.closing-final {
  margin-top: 28px;
  font-size: 26px;
  font-weight: 800;
}

.deck-control {
  position: fixed;
  z-index: 50;
  bottom: 14px;
  width: 44px;
  height: 44px;
  border: 1px solid rgb(255 255 255 / 24%);
  background: rgb(17 17 17 / 72%);
  color: var(--warm);
  cursor: pointer;
  font-size: 28px;
  line-height: 1;
}

.deck-control:hover,
.deck-control:focus-visible {
  background: var(--black);
  outline: 2px solid var(--rock);
  outline-offset: 2px;
}

.deck-control.prev {
  left: 14px;
}

.deck-control.next {
  right: 14px;
}

.deck-control.fullscreen {
  right: 68px;
  font-size: 22px;
}

.deck-progress {
  position: fixed;
  z-index: 49;
  left: 0;
  bottom: 0;
  height: 3px;
  background: var(--rock);
}

.notes-overlay {
  position: fixed;
  z-index: 80;
  right: 18px;
  top: 18px;
  width: min(520px, calc(100vw - 36px));
  max-height: calc(100vh - 92px);
  overflow: auto;
  padding: 24px;
  border: 1px solid var(--metal);
  background: rgb(17 17 17 / 96%);
  color: var(--warm);
  font-size: 16px;
  line-height: 1.7;
}

.notes-overlay[hidden] {
  display: none;
}

@media (hover: none) {
  .deck-control {
    opacity: 0.72;
  }
}

@media print {
  html,
  body,
  .viewport {
    width: 1280px;
    height: 720px;
    background: transparent;
  }

  .slide {
    left: 0;
    top: 0;
    transform: none;
  }

  .deck-control,
  .deck-progress,
  .notes-overlay {
    display: none !important;
  }
}

.kicker,
.page-no,
.footer {
  display: none;
}

.case-intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 72px 72px 56px;
}

.case-intro-eyebrow {
  color: var(--rock);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
}

.case-intro-eyebrow::before {
  content: "";
  display: inline-block;
  width: 34px;
  height: 2px;
  background: var(--metal);
  margin-right: 16px;
  vertical-align: middle;
}

.case-intro-statement {
  margin-top: 34px;
  font-size: 66px;
  line-height: 1.1;
  font-weight: 800;
}

.case-intro-statement span {
  display: block;
  margin-top: 12px;
  color: var(--rock);
  font-size: 38px;
  font-weight: 700;
}

.case-intro-stat {
  display: flex;
  align-items: baseline;
  gap: 26px;
  margin-top: 48px;
}

.case-intro-number {
  font-family: "Aptos Display", Arial, sans-serif;
  font-size: 190px;
  line-height: 0.88;
  font-weight: 800;
}

.case-intro-unit {
  color: var(--rock);
  font-size: 58px;
  font-weight: 800;
}

.case-intro-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 46px;
  color: var(--metal);
  font-size: 26px;
  font-weight: 700;
}

.case-intro-meta .sep {
  color: var(--rock);
  font-weight: 400;
}

.resource-layout {
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  padding: 0 72px;
}

.resource-eyebrow {
  color: var(--rock);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 28px;
}

.resource-heading {
  font-size: 42px;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 46px;
}

.resource-rows {
  display: flex;
  flex-direction: column;
}

.resource-row {
  display: flex;
  align-items: baseline;
  gap: 48px;
  padding: 28px 0;
  border-top: 1px solid var(--metal);
}

.resource-row:last-child {
  border-bottom: 1px solid var(--metal);
}

.resource-label {
  width: 130px;
  color: var(--rock);
  font-size: 30px;
  font-weight: 700;
}

.resource-value {
  font-size: 56px;
  font-weight: 800;
}

.screenshot-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 80px;
}

.screenshot-page img {
  display: block;
  width: 840px;
  height: auto;
  background: #fff;
  border: 1px solid var(--metal);
  border-radius: 6px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
}

.data-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px 80px 36px;
  gap: 26px;
}

.data-title {
  color: var(--rock);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 1px;
}

.data-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
}

.data-row img {
  max-height: 540px;
  width: auto;
  max-width: 100%;
  background: #fff;
  border: 1px solid var(--metal);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
}