:root {
  --ink: #16211d;
  --muted: #66706a;
  --paper: #f6f4ee;
  --white: #fffdf8;
  --forest: #173c2f;
  --forest-deep: #10271f;
  --leaf: #2f6b4f;
  --gold: #b88632;
  --gold-light: #d8b56c;
  --coral: #c95b42;
  --sea: #2d6e7d;
  --line: rgba(22, 33, 29, 0.16);
  --slide-width: 1600px;
  --slide-height: 900px;
  --radius: 6px;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  color: var(--ink);
  background: #09120f;
  font-synthesis: none;
  text-rendering: geometricPrecision;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #09120f;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

.presentation,
.stage {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.stage {
  display: grid;
  place-items: center;
}

.deck {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--slide-width);
  height: var(--slide-height);
  transform-origin: center center;
  will-change: transform;
}

.slide {
  position: absolute;
  inset: 0;
  display: none;
  width: var(--slide-width);
  height: var(--slide-height);
  padding: 62px 72px 48px;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  opacity: 0;
}

.slide.is-active {
  display: block;
  opacity: 1;
  animation: slideIn 420ms ease both;
}

.slide.is-leaving {
  display: block;
  animation: slideOut 260ms ease both;
  pointer-events: none;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-10px); }
}

.slide::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: var(--gold);
}

.slide-dark,
.slide-loop,
.slide-summary {
  color: var(--white);
  background: var(--forest-deep);
}

.slide-dark::before,
.slide-loop::before,
.slide-summary::before,
.slide-terminal::before,
.slide-yangmei::before,
.slide-cover::before {
  background: var(--gold-light);
}

.slide-header {
  position: relative;
  z-index: 2;
  max-width: 1260px;
  margin-bottom: 46px;
}

.slide-header.compact {
  margin-bottom: 32px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.light .eyebrow,
.slide-dark .eyebrow,
.slide-loop .eyebrow,
.slide-summary .eyebrow,
.slide-terminal .eyebrow,
.slide-yangmei .eyebrow {
  color: var(--gold-light);
}

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

h1,
h2,
h3,
strong,
b {
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 54px;
  font-weight: 800;
  line-height: 1.14;
}

.lead {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 24px;
  line-height: 1.55;
}

.slide-footer {
  position: absolute;
  z-index: 5;
  right: 72px;
  bottom: 24px;
  left: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid rgba(22, 33, 29, 0.18);
  color: #707872;
  font-size: 14px;
  font-weight: 700;
}

.slide-footer.light {
  border-color: rgba(255, 253, 248, 0.24);
  color: rgba(255, 253, 248, 0.68);
}

/* Cover */
.slide-cover {
  color: var(--white);
  background: var(--forest-deep);
}

.cover-grid {
  position: absolute;
  inset: 0;
  opacity: 0.13;
  pointer-events: none;
}

.cover-grid::before {
  content: "";
  position: absolute;
  top: 0;
  left: 330px;
  width: 1px;
  height: 100%;
  background: #fff;
  box-shadow: 310px 0 0 #fff, 620px 0 0 #fff, 930px 0 0 #fff;
}

.cover-grid::after {
  content: "";
  position: absolute;
  top: 230px;
  left: 0;
  width: 100%;
  height: 1px;
  background: #fff;
  box-shadow: 0 230px 0 #fff, 0 460px 0 #fff;
}

.cover-mark {
  position: absolute;
  top: 70px;
  right: 80px;
  display: grid;
  width: 118px;
  height: 118px;
  place-items: center;
  border: 1px solid rgba(216, 181, 108, 0.7);
  color: var(--gold-light);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 42px;
  font-weight: 700;
}

.cover-mark::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(216, 181, 108, 0.34);
}

.cover-copy {
  position: absolute;
  top: 144px;
  left: 120px;
  z-index: 2;
  width: 1020px;
}

.cover-copy h1 {
  margin: 0 0 18px;
  font-family: SimSun, "Songti SC", serif;
  font-size: 96px;
  line-height: 1;
}

.cover-subtitle {
  margin-bottom: 34px;
  color: var(--gold-light);
  font-size: 46px;
  font-weight: 600;
}

.cover-manifesto {
  width: fit-content;
  margin: 0;
  padding: 16px 22px;
  border-left: 4px solid var(--coral);
  background: rgba(255, 255, 255, 0.06);
  font-size: 24px;
}

.cover-axis {
  position: absolute;
  bottom: 192px;
  left: 120px;
  z-index: 2;
  display: flex;
  align-items: center;
  color: rgba(255, 253, 248, 0.84);
  font-size: 18px;
  font-weight: 700;
}

.cover-axis i {
  width: 34px;
  height: 1px;
  margin: 0 12px;
  background: rgba(216, 181, 108, 0.7);
}

.cover-statement {
  position: absolute;
  right: 84px;
  bottom: 94px;
  display: flex;
  width: 540px;
  padding-left: 24px;
  flex-direction: column;
  border-left: 2px solid var(--gold-light);
}

.cover-statement strong {
  margin-bottom: 9px;
  font-size: 22px;
}

.cover-statement span {
  color: rgba(255, 253, 248, 0.68);
  font-size: 16px;
}

/* Agenda */
.agenda {
  display: grid;
  width: 100%;
  gap: 0;
  border-top: 1px solid var(--line);
}

.agenda article {
  display: grid;
  min-height: 132px;
  grid-template-columns: 112px 1fr 100px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.agenda-no {
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 50px;
}

.agenda h3 {
  margin: 0 0 9px;
  font-size: 29px;
}

.agenda p {
  margin: 0;
  color: var(--muted);
  font-size: 19px;
}

.agenda article > b {
  color: #8b928d;
  font-size: 17px;
  text-align: right;
}

/* Brand */
.brand-orbit {
  position: absolute;
  top: 230px;
  left: 118px;
  width: 620px;
  height: 510px;
  border: 1px solid rgba(184, 134, 50, 0.34);
  border-radius: 50%;
}

.brand-orbit::before,
.brand-orbit::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(23, 60, 47, 0.18);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.brand-orbit::before { width: 450px; height: 360px; }
.brand-orbit::after { width: 290px; height: 230px; }

.brand-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: flex;
  width: 230px;
  height: 170px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transform: translate(-50%, -50%);
  color: var(--white);
  background: var(--forest);
}

.brand-core small,
.brand-core span { font-size: 16px; opacity: 0.76; }
.brand-core strong { margin: 8px 0; color: var(--gold-light); font-family: SimSun, serif; font-size: 38px; }

.orbit-item {
  position: absolute;
  z-index: 3;
  display: flex;
  width: 160px;
  padding: 12px 14px;
  flex-direction: column;
  border-left: 3px solid var(--gold);
  background: var(--paper);
}

.orbit-item b { font-size: 21px; }
.orbit-item span { margin-top: 4px; color: var(--muted); font-size: 14px; }
.orbit-a { top: 40px; left: 222px; }
.orbit-b { top: 215px; right: -72px; }
.orbit-c { bottom: 36px; left: 220px; }
.orbit-d { top: 216px; left: -72px; }

.brand-definition {
  position: absolute;
  top: 268px;
  right: 92px;
  width: 650px;
  padding: 34px 0 26px 38px;
  border-left: 2px solid var(--forest);
}

.brand-definition > span {
  color: var(--coral);
  font-size: 16px;
  font-weight: 800;
}

.brand-definition h3 {
  margin: 14px 0 18px;
  font-size: 40px;
  line-height: 1.25;
}

.brand-definition p {
  color: var(--muted);
  font-size: 21px;
  line-height: 1.75;
}

.brand-values {
  position: absolute;
  right: 92px;
  bottom: 112px;
  display: flex;
  width: 650px;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--leaf);
  font-size: 18px;
  font-weight: 800;
}

/* Equity */
.equity-layout {
  display: grid;
  height: 420px;
  grid-template-columns: 330px 150px 1fr;
  align-items: center;
}

.parent-company {
  display: flex;
  height: 235px;
  padding: 34px;
  justify-content: center;
  flex-direction: column;
  color: var(--white);
  background: var(--forest);
}

.parent-company span { color: var(--gold-light); font-size: 17px; font-weight: 800; }
.parent-company strong { margin: 13px 0; font-size: 42px; }
.parent-company p { margin: 0; color: rgba(255,255,255,.7); font-size: 18px; }

.equity-rail {
  position: relative;
  height: 2px;
  background: var(--gold);
}

.equity-rail b {
  position: absolute;
  top: -42px;
  left: 50%;
  color: var(--gold);
  font-size: 16px;
  transform: translateX(-50%);
  white-space: nowrap;
}

.subsidiary-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.subsidiary-list div {
  display: flex;
  min-height: 112px;
  padding: 20px 24px;
  align-items: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.subsidiary-list i {
  margin-right: 18px;
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 26px;
  font-style: normal;
}

.subsidiary-list span { font-size: 20px; font-weight: 800; }

.governance-notes {
  display: grid;
  margin-top: 18px;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.governance-notes div { padding: 24px 28px 0 0; }
.governance-notes b { display: block; margin-bottom: 9px; color: var(--leaf); font-size: 22px; }
.governance-notes span { color: var(--muted); font-size: 17px; line-height: 1.5; }

/* Architecture */
.layer-stack {
  display: grid;
  gap: 10px;
}

.layer {
  display: grid;
  position: relative;
  min-height: 126px;
  grid-template-columns: 210px 1fr 340px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.layer:not(:last-child)::after {
  content: "↓";
  position: absolute;
  z-index: 4;
  bottom: -23px;
  left: 102px;
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 23px;
  line-height: 1;
}

.layer-label { display: flex; align-items: center; }
.layer-label span { margin-right: 18px; color: var(--gold); font-family: Georgia, serif; font-size: 35px; }
.layer-label b { font-size: 22px; }
.layer-body strong { display: block; margin-bottom: 7px; font-size: 26px; }
.layer-body p { margin: 0; color: var(--muted); font-size: 17px; }
.layer em { color: var(--leaf); font-size: 17px; font-style: normal; font-weight: 800; text-align: right; }
.layer.platform { border-left: 8px solid var(--forest); background: rgba(23,60,47,.05); }
.layer.platform .layer-label { padding-left: 22px; }
.layer.carrier { border-left: 8px solid var(--gold); }
.layer.carrier .layer-label { padding-left: 22px; }
.layer.terminal { border-left: 8px solid var(--coral); }
.layer.terminal .layer-label { padding-left: 22px; }

.architecture-caption {
  display: flex;
  margin: 18px 0 0;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: var(--muted);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 1px;
}

.architecture-caption span {
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 22px;
  line-height: 1;
}

/* Digital */
.digital-system {
  position: relative;
  height: 590px;
}

.digital-system::before,
.digital-system::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(216,181,108,.24);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.digital-system::before { width: 850px; height: 430px; }
.digital-system::after { width: 560px; height: 300px; }

.digital-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: flex;
  width: 420px;
  height: 236px;
  padding: 26px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(216,181,108,.5);
  background: #17372c;
  text-align: center;
}

.digital-core small { color: var(--gold-light); font-size: 15px; font-weight: 800; }
.digital-core strong { margin: 10px 0; font-size: 34px; }
.digital-core > span { color: var(--gold-light); font-size: 24px; font-weight: 800; }
.digital-core p { margin: 12px 0 0; color: rgba(255,255,255,.66); font-size: 15px; }

.digital-branch {
  position: absolute;
  z-index: 3;
  display: flex;
  width: 310px;
  min-height: 86px;
  padding: 18px 22px;
  justify-content: center;
  flex-direction: column;
  border-left: 3px solid var(--gold-light);
  background: #1b4536;
}

.digital-branch b { margin-bottom: 6px; font-size: 23px; }
.digital-branch span { color: rgba(255,255,255,.66); font-size: 16px; }
.branch-1 { top: 35px; left: 80px; }
.branch-2 { top: 35px; right: 80px; }
.branch-3 { top: 250px; left: 0; }
.branch-4 { top: 250px; right: 0; }
.branch-5 { bottom: 35px; left: 80px; }
.branch-6 { right: 80px; bottom: 35px; }

.digital-caption {
  position: absolute;
  right: 72px;
  bottom: 72px;
  display: flex;
  flex-direction: column;
  text-align: right;
}

.digital-caption b { color: var(--gold-light); font-size: 20px; }
.digital-caption span { margin-top: 5px; color: rgba(255,255,255,.6); font-size: 14px; }

/* Source map */
.source-map {
  position: relative;
  display: grid;
  height: 500px;
  grid-template-columns: 1.2fr .9fr 1.25fr .8fr;
  gap: 16px;
}

.region {
  position: relative;
  z-index: 2;
  padding: 28px 26px;
  border-top: 5px solid var(--leaf);
  background: rgba(255,255,255,.7);
}

.region:nth-child(2) { margin-top: 74px; border-top-color: var(--gold); }
.region:nth-child(3) { margin-top: 24px; border-top-color: var(--coral); }
.region:nth-child(4) { margin-top: 122px; border-top-color: var(--sea); }
.region > span { display: block; margin-bottom: 26px; color: var(--muted); font-size: 17px; font-weight: 800; }
.region b { display: block; margin-top: 18px; font-size: 26px; }
.region p { margin: 5px 0 0; color: var(--muted); font-size: 16px; line-height: 1.45; }
.map-watermark { position: absolute; right: -22px; bottom: -58px; color: rgba(23,60,47,.05); font-family: Georgia,serif; font-size: 360px; font-weight: 800; }

.source-result {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  color: var(--forest);
  font-size: 19px;
  font-weight: 800;
}

.source-result i { width: 48px; height: 1px; margin: 0 14px; background: var(--gold); }

/* Carrier */
.carrier-layout {
  display: grid;
  height: 480px;
  grid-template-columns: 510px 1fr;
  gap: 70px;
  align-items: center;
}

.carrier-name {
  padding: 50px 46px;
  color: var(--white);
  background: var(--forest);
}

.carrier-name small { color: var(--gold-light); font-size: 17px; font-weight: 800; }
.carrier-name strong { display: block; margin: 22px 0; font-family: SimSun, serif; font-size: 76px; }
.carrier-name p { margin: 0; color: rgba(255,255,255,.7); font-size: 19px; line-height: 1.7; }

.carrier-routes { border-top: 1px solid var(--line); }
.carrier-routes div { display: grid; min-height: 86px; grid-template-columns: 54px 180px 1fr; align-items: center; border-bottom: 1px solid var(--line); }
.carrier-routes i { color: var(--gold); font-family: Georgia,serif; font-size: 20px; font-style: normal; }
.carrier-routes b { font-size: 22px; }
.carrier-routes span { color: var(--muted); font-size: 17px; }

.carrier-band {
  display: flex;
  height: 74px;
  align-items: center;
  justify-content: center;
  background: #e9e3d6;
  font-size: 20px;
}

.carrier-band span { margin: 0 20px; color: var(--gold); }
.carrier-band strong { color: var(--coral); font-size: 24px; }

/* Experiences */
.experience-line {
  position: relative;
  display: grid;
  height: 330px;
  grid-template-columns: repeat(5, 1fr);
  gap: 22px;
  align-items: end;
}

.experience-line::before { content: ""; position: absolute; top: 112px; right: 40px; left: 40px; height: 2px; background: var(--gold); }
.experience-line article { position: relative; z-index: 2; display: flex; height: 250px; padding: 28px 20px; align-items: center; justify-content: center; flex-direction: column; border: 1px solid var(--line); background: var(--paper); text-align: center; }
.experience-line article:nth-child(even) { height: 286px; background: #ece8dd; }
.experience-line span { display: grid; width: 54px; height: 54px; place-items: center; margin-bottom: 24px; border-radius: 50%; color: var(--white); background: var(--forest); font-family: Georgia,serif; font-size: 19px; }
.experience-line b { font-size: 24px; }
.experience-line p { margin: 8px 0 0; color: var(--muted); font-size: 17px; }

.experience-purpose { display: grid; margin-top: 32px; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.experience-purpose div { padding: 22px 24px 0 0; }
.experience-purpose b { display: block; margin-bottom: 6px; color: var(--leaf); font-size: 22px; }
.experience-purpose span { color: var(--muted); font-size: 16px; }
.takeaway { margin: 28px 0 0; color: var(--coral); font-size: 19px; font-weight: 800; text-align: center; }

/* Terminal */
.slide-terminal {
  padding: 0;
  color: var(--white);
  background: var(--forest-deep);
}

.terminal-media {
  position: absolute;
  top: 0;
  right: 0;
  display: grid;
  width: 690px;
  height: 100%;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 3px;
  background: #fff;
}

.terminal-media::after { content: ""; position: absolute; inset: 0; background: rgba(16,39,31,.18); }
.terminal-media img { width: 100%; height: 100%; object-fit: cover; }

.terminal-copy { position: absolute; top: 90px; left: 92px; width: 760px; }
.terminal-copy h2 { margin-bottom: 48px; font-size: 52px; }
.terminal-models { border-top: 1px solid rgba(255,255,255,.2); }
.terminal-models div { display: grid; min-height: 92px; grid-template-columns: 180px 1fr; align-items: center; border-bottom: 1px solid rgba(255,255,255,.2); }
.terminal-models b { color: var(--gold-light); font-size: 21px; }
.terminal-models span { color: rgba(255,255,255,.78); font-size: 18px; }
.terminal-range { display: flex; align-items: center; margin-top: 40px; color: rgba(255,255,255,.7); font-size: 16px; font-weight: 800; }
.terminal-range i { width: 36px; height: 1px; margin: 0 12px; background: var(--gold-light); }
.slide-terminal .slide-footer { right: 72px; left: 92px; width: 1416px; }

/* Responsibilities */
.responsibility-matrix { border-top: 1px solid var(--line); }
.matrix-row { display: grid; min-height: 95px; grid-template-columns: 70px 250px 1fr 90px; align-items: center; border-bottom: 1px solid var(--line); }
.matrix-row > span { color: var(--gold); font-family: Georgia,serif; font-size: 26px; }
.matrix-row b { font-size: 23px; }
.matrix-row p { margin: 0; color: var(--muted); font-size: 18px; }
.matrix-row em { padding: 8px 10px; border: 1px solid rgba(47,107,79,.36); color: var(--leaf); font-size: 15px; font-style: normal; font-weight: 800; text-align: center; }

/* Value loop */
.loop-ring {
  position: relative;
  width: 1160px;
  height: 590px;
  margin: 4px auto 0;
  border: 1px solid rgba(216,181,108,.28);
  border-radius: 50%;
}

.loop-ring::before { content: ""; position: absolute; top: 50%; left: 50%; width: 760px; height: 390px; border: 1px solid rgba(255,255,255,.12); border-radius: 50%; transform: translate(-50%,-50%); }
.loop-center { position: absolute; top: 50%; left: 50%; display: flex; width: 310px; height: 170px; align-items: center; justify-content: center; flex-direction: column; transform: translate(-50%,-50%); border: 1px solid rgba(216,181,108,.5); background: #17372c; }
.loop-center b { color: var(--gold-light); font-size: 31px; }
.loop-center span { margin-top: 9px; color: rgba(255,255,255,.66); font-size: 16px; }
.loop-node { position: absolute; display: flex; width: 210px; min-height: 84px; padding: 14px 18px; justify-content: center; flex-direction: column; border-left: 3px solid var(--gold-light); background: #1b4536; }
.loop-node i { position: absolute; top: 12px; right: 14px; color: rgba(255,255,255,.36); font-family: Georgia,serif; font-style: normal; }
.loop-node b { font-size: 20px; }
.loop-node span { margin-top: 4px; color: rgba(255,255,255,.62); font-size: 14px; }
.node-1 { top: -20px; left: 475px; }
.node-2 { top: 55px; right: 48px; }
.node-3 { top: 250px; right: -70px; }
.node-4 { right: 52px; bottom: 40px; }
.node-5 { bottom: -20px; left: 475px; }
.node-6 { bottom: 40px; left: 52px; }
.node-7 { top: 250px; left: -70px; }
.node-8 { top: 55px; left: 48px; }
.loop-message { position: absolute; right: 84px; bottom: 66px; display: flex; flex-direction: column; text-align: right; }
.loop-message strong { color: var(--gold-light); font-size: 18px; }
.loop-message span { margin-top: 4px; color: rgba(255,255,255,.56); font-size: 14px; }

/* Cashier */
.cashier-flow { display: grid; height: 470px; grid-template-columns: 310px 150px 340px 150px 1fr; align-items: center; }
.channel-cloud { display: flex; align-content: center; justify-content: center; flex-wrap: wrap; gap: 12px; }
.channel-cloud span { display: grid; width: 92px; height: 54px; place-items: center; border: 1px solid var(--line); background: rgba(255,255,255,.64); font-size: 16px; font-weight: 800; }
.flow-arrow { position: relative; height: 2px; background: var(--gold); }
.flow-arrow::after { content: ""; position: absolute; top: -7px; right: -1px; width: 13px; height: 13px; border-top: 2px solid var(--gold); border-right: 2px solid var(--gold); transform: rotate(45deg); }
.flow-arrow b { position: absolute; top: -38px; left: 50%; color: var(--muted); font-size: 14px; transform: translateX(-50%); white-space: nowrap; }
.cashier-core { display: flex; height: 250px; padding: 26px; align-items: center; justify-content: center; flex-direction: column; color: var(--white); background: var(--forest); text-align: center; }
.cashier-core small { color: var(--gold-light); font-size: 16px; font-weight: 800; }
.cashier-core strong { margin: 18px 0; font-size: 46px; }
.cashier-core p { margin: 0; color: rgba(255,255,255,.64); font-size: 16px; }
.settlement-output { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.settlement-output div { display: flex; min-height: 116px; align-items: center; justify-content: center; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.settlement-output b { margin-bottom: 6px; color: var(--leaf); font-size: 22px; }
.settlement-output span { color: var(--muted); font-size: 15px; }
.settlement-rule { display: flex; padding: 20px 26px; align-items: center; border-left: 4px solid var(--coral); background: #ece8dd; }
.settlement-rule b { margin-right: 28px; color: var(--coral); font-size: 20px; white-space: nowrap; }
.settlement-rule span { color: var(--muted); font-size: 16px; }

/* Media flywheel */
.media-flywheel { position: relative; width: 1080px; height: 500px; margin: 18px auto 0; border: 1px solid rgba(184,134,50,.38); border-radius: 50%; }
.media-flywheel::before { content: ""; position: absolute; top: 50%; left: 50%; width: 650px; height: 270px; border: 1px solid var(--line); border-radius: 50%; transform: translate(-50%,-50%); }
.flywheel-core { position: absolute; top: 50%; left: 50%; display: flex; width: 300px; height: 150px; align-items: center; justify-content: center; flex-direction: column; transform: translate(-50%,-50%); color: var(--white); background: var(--forest); }
.flywheel-core b { color: var(--gold-light); font-size: 28px; }
.flywheel-core span { margin-top: 8px; color: rgba(255,255,255,.66); font-size: 15px; }
.flywheel-step { position: absolute; display: flex; width: 300px; min-height: 104px; padding: 18px 24px 18px 58px; justify-content: center; flex-direction: column; border-left: 3px solid var(--gold); background: var(--paper); }
.flywheel-step i { position: absolute; left: 20px; color: var(--gold); font-family: Georgia,serif; font-size: 20px; font-style: normal; }
.flywheel-step b { font-size: 22px; }
.flywheel-step span { margin-top: 5px; color: var(--muted); font-size: 15px; }
.step-a { top: -20px; left: 390px; }
.step-b { top: 190px; right: -90px; }
.step-c { bottom: -20px; left: 390px; }
.step-d { top: 190px; left: -90px; }
.media-scope { display: flex; justify-content: center; gap: 38px; margin-top: 28px; color: var(--leaf); font-size: 16px; font-weight: 800; }

/* Moats */
.moat-axis { display: grid; height: 410px; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.moat-axis article { display: flex; padding: 38px 30px; flex-direction: column; border-right: 1px solid var(--line); }
.moat-axis article:last-child { border-right: 0; }
.moat-axis article > span { margin-bottom: 62px; color: var(--gold); font-family: Georgia,serif; font-size: 46px; }
.moat-axis b { font-size: 28px; }
.moat-axis p { margin: 14px 0 0; color: var(--muted); font-size: 18px; line-height: 1.6; }
.moat-result { display: grid; margin-top: 34px; grid-template-columns: 150px 1fr 320px; align-items: center; }
.moat-result small { color: var(--coral); font-size: 17px; font-weight: 800; }
.moat-result strong { font-size: 24px; }
.moat-result p { margin: 0; color: var(--muted); font-size: 17px; text-align: right; }

/* Summary */
.summary-metrics { display: grid; height: 445px; grid-template-columns: repeat(4, 1fr); grid-template-rows: 1fr 1fr; gap: 1px; background: rgba(216,181,108,.22); border: 1px solid rgba(216,181,108,.22); }
.metric { display: flex; padding: 24px 28px; justify-content: center; flex-direction: column; background: #17372c; }
.metric.hero { grid-row: span 2; background: #1e4938; }
.metric.wide { grid-column: auto; }
.metric strong { color: var(--gold-light); font-family: Georgia,serif; font-size: 60px; line-height: 1; }
.metric.hero strong { font-size: 110px; line-height: .86; }
.metric span { margin: 15px 0 8px; font-size: 23px; font-weight: 800; }
.metric small { color: rgba(255,255,255,.58); font-size: 15px; }
.slide-summary blockquote { width: 1280px; margin: 42px auto 0; color: rgba(255,255,255,.78); font-family: SimSun, serif; font-size: 23px; line-height: 1.65; text-align: center; }

/* Yangmei */
.slide-yangmei { padding: 0; color: var(--white); background: #231f1a; }
.yangmei-media { position: absolute; top: 0; right: 0; display: grid; width: 570px; height: 100%; grid-template-rows: minmax(0, 1fr) minmax(0, 1fr); gap: 4px; overflow: hidden; background: #fff; }
.yangmei-media::after { content: ""; position: absolute; inset: 0; background: rgba(35,31,26,.2); }
.yangmei-media img { width: 100%; height: 100%; min-height: 0; object-fit: cover; }
.yangmei-content { position: absolute; top: 66px; left: 78px; width: 890px; }
.yangmei-content h2 { margin-bottom: 10px; font-size: 47px; }
.yangmei-lead { margin-bottom: 30px; color: var(--gold-light); font-size: 21px; font-weight: 800; }
.yangmei-pillars { border-top: 1px solid rgba(255,255,255,.18); }
.yangmei-pillars div { display: grid; min-height: 112px; grid-template-columns: 55px 210px 1fr; align-items: center; border-bottom: 1px solid rgba(255,255,255,.18); }
.yangmei-pillars span { color: var(--gold-light); font-family: Georgia,serif; font-size: 20px; }
.yangmei-pillars b { font-size: 22px; }
.yangmei-pillars p { margin: 0; color: rgba(255,255,255,.65); font-size: 16px; line-height: 1.55; }
.yangmei-enablers { display: flex; justify-content: space-between; margin-top: 24px; color: rgba(255,255,255,.72); font-size: 15px; font-weight: 800; }
.yangmei-enablers span { padding-bottom: 8px; border-bottom: 2px solid var(--coral); }
.yangmei-close { display: flex; margin-top: 30px; padding-left: 20px; flex-direction: column; border-left: 3px solid var(--gold-light); }
.yangmei-close b { font-size: 20px; }
.yangmei-close span { margin-top: 7px; color: rgba(255,255,255,.58); font-size: 15px; }
.slide-yangmei .slide-footer { right: 64px; left: 78px; width: 1458px; }

/* Controls */
.controls {
  position: fixed;
  z-index: 50;
  right: max(18px, env(safe-area-inset-right));
  bottom: max(18px, env(safe-area-inset-bottom));
  display: flex;
  height: 46px;
  align-items: center;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius);
  background: rgba(9,18,15,.9);
  box-shadow: 0 12px 30px rgba(0,0,0,.25);
}

.controls button,
.overview-header button {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 0;
  border-right: 1px solid rgba(255,255,255,.12);
  color: #fff;
  background: transparent;
  cursor: pointer;
  font-size: 22px;
}

.controls button:hover,
.controls button:focus-visible,
.overview-header button:hover,
.overview-header button:focus-visible {
  color: var(--gold-light);
  background: rgba(255,255,255,.08);
  outline: none;
}

.controls button:disabled { opacity: .35; cursor: default; }
.counter { display: flex; width: 88px; align-items: baseline; justify-content: center; color: #fff; }
.counter b { margin-right: 5px; color: var(--gold-light); font-family: Georgia,serif; font-size: 18px; }
.counter span { color: rgba(255,255,255,.55); font-size: 13px; }

.progress-track { position: fixed; z-index: 60; right: 0; bottom: 0; left: 0; height: 3px; background: rgba(255,255,255,.1); }
.progress-track span { display: block; width: 0; height: 100%; background: var(--gold-light); transition: width 280ms ease; }

.overview {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(430px, 92vw);
  padding: 22px;
  overflow-y: auto;
  color: #fff;
  background: #10231d;
  transform: translateX(102%);
  transition: transform 260ms ease;
}

.overview.is-open { transform: translateX(0); }
.overview-header { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.14); }
.overview-header div { display: flex; flex-direction: column; }
.overview-header small { margin-bottom: 4px; color: var(--gold-light); font-size: 11px; font-weight: 800; }
.overview-header b { font-size: 22px; }
.overview-header button { border: 0; font-size: 28px; }
.thumbnail-list { display: grid; gap: 10px; margin-top: 18px; }
.thumbnail { display: grid; min-height: 72px; padding: 12px 14px; grid-template-columns: 44px 1fr; align-items: center; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); color: #fff; background: transparent; cursor: pointer; text-align: left; }
.thumbnail:hover,
.thumbnail:focus-visible { border-color: rgba(216,181,108,.58); outline: none; }
.thumbnail.is-active { border-color: var(--gold-light); background: rgba(216,181,108,.1); }
.thumbnail span { color: var(--gold-light); font-family: Georgia,serif; font-size: 18px; }
.thumbnail b { font-size: 15px; line-height: 1.35; }
.overview-help { display: flex; justify-content: space-between; margin-top: 20px; color: rgba(255,255,255,.48); font-size: 11px; }
.overview-backdrop { position: fixed; z-index: 90; inset: 0; display: none; border: 0; background: rgba(0,0,0,.55); }
.overview-backdrop.is-open { display: block; }

body.controls-hidden .controls,
body.controls-hidden .progress-track { opacity: 0; pointer-events: none; }

@media (max-width: 720px) {
  .controls { right: 50%; transform: translateX(50%); }
  .controls button { width: 42px; }
  .counter { width: 74px; }

  .architecture-caption { gap: 8px; font-size: 11px; letter-spacing: 0; }
  .architecture-caption span { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 1ms !important; transition-duration: 1ms !important; }
}

@page {
  size: 16in 9in;
  margin: 0;
}

@media print {
  html,
  body {
    width: auto;
    height: auto;
    overflow: visible;
    background: #fff;
  }

  .presentation,
  .stage,
  .deck {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    transform: none !important;
  }

  .slide,
  .slide.is-active,
  .slide.is-leaving {
    position: relative;
    display: block !important;
    width: 1600px;
    height: 900px;
    break-after: page;
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }

  .controls,
  .progress-track,
  .overview,
  .overview-backdrop {
    display: none !important;
  }
}

/* Direction variants: the same verified story, tuned for three audiences. */
body[data-theme="roadshow"] .variant-only,
body[data-theme="brand"] .variant-only,
body[data-theme="government"] .variant-only { display: block; }

body[data-theme="brand"] {
  --ink: #28211c;
  --muted: #786f67;
  --paper: #f6eee3;
  --white: #fffaf2;
  --forest: #7b3327;
  --forest-deep: #47221e;
  --leaf: #1c615b;
  --gold: #d27b30;
  --gold-light: #efbb76;
  --coral: #e2573b;
  --sea: #2d7780;
  --line: rgba(40,33,28,.16);
}

body[data-theme="brand"] .slide {
  border-radius: 18px;
}

body[data-theme="brand"] h2 {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-weight: 900;
}

body[data-theme="brand"] .slide-cover,
body[data-theme="brand"] .slide-dark,
body[data-theme="brand"] .slide-loop,
body[data-theme="brand"] .slide-summary {
  background: var(--forest-deep);
}

body[data-theme="brand"] .cover-grid::before {
  background: rgba(239,187,118,.32);
  box-shadow: 310px 0 0 rgba(239,187,118,.32), 620px 0 0 rgba(239,187,118,.32), 930px 0 0 rgba(239,187,118,.32);
}

body[data-theme="brand"] .cover-grid::after {
  background: rgba(239,187,118,.32);
  box-shadow: 0 230px 0 rgba(239,187,118,.32), 0 460px 0 rgba(239,187,118,.32);
}

body[data-theme="brand"] .cover-copy h1 {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  letter-spacing: 4px;
}

body[data-theme="brand"] .cover-manifesto {
  border-left-width: 0;
  border-radius: 4px 18px 18px 4px;
  background: rgba(226,87,59,.2);
}

body[data-theme="brand"] .brand-core,
body[data-theme="brand"] .parent-company,
body[data-theme="brand"] .carrier-name,
body[data-theme="brand"] .digital-core,
body[data-theme="brand"] .cashier-core,
body[data-theme="brand"] .flywheel-core,
body[data-theme="brand"] .loop-center {
  border-radius: 20px;
  box-shadow: 0 18px 40px rgba(71,34,30,.16);
}

body[data-theme="brand"] .orbit-item,
body[data-theme="brand"] .digital-branch,
body[data-theme="brand"] .loop-node,
body[data-theme="brand"] .flywheel-step,
body[data-theme="brand"] .metric,
body[data-theme="brand"] .experience-line article,
body[data-theme="brand"] .region {
  border-radius: 12px;
}

body[data-theme="brand"] .experience-line article:nth-child(even),
body[data-theme="brand"] .settlement-rule,
body[data-theme="brand"] .carrier-band {
  background: #ead8c6;
}

body[data-theme="brand"] .terminal-media img,
body[data-theme="brand"] .yangmei-media img {
  filter: saturate(1.14) contrast(1.04);
}

body[data-theme="government"] {
  --ink: #17353e;
  --muted: #62757b;
  --paper: #f2f6f4;
  --white: #f8fbfa;
  --forest: #123f53;
  --forest-deep: #0c2d3d;
  --leaf: #19726f;
  --gold: #ba8d43;
  --gold-light: #ddbd79;
  --coral: #b75e49;
  --sea: #2f7488;
  --line: rgba(23,53,62,.16);
}

body[data-theme="government"] .slide::before {
  height: 6px;
  background: var(--sea);
}

body[data-theme="government"] .slide-cover::before,
body[data-theme="government"] .slide-dark::before,
body[data-theme="government"] .slide-loop::before,
body[data-theme="government"] .slide-summary::before,
body[data-theme="government"] .slide-terminal::before,
body[data-theme="government"] .slide-yangmei::before {
  background: var(--gold-light);
}

body[data-theme="government"] .slide {
  border: 1px solid rgba(47,116,136,.13);
}

body[data-theme="government"] h2 {
  font-size: 51px;
  letter-spacing: 0;
}

body[data-theme="government"] .eyebrow {
  letter-spacing: 2px;
}

body[data-theme="government"] .slide-header {
  border-left: 4px solid var(--sea);
  padding-left: 24px;
}

body[data-theme="government"] .slide-header.compact {
  border-left-width: 3px;
}

body[data-theme="government"] .parent-company,
body[data-theme="government"] .carrier-name,
body[data-theme="government"] .cashier-core,
body[data-theme="government"] .digital-core,
body[data-theme="government"] .flywheel-core,
body[data-theme="government"] .loop-center,
body[data-theme="government"] .brand-core {
  border: 1px solid rgba(221,189,121,.42);
}

body[data-theme="government"] .layer,
body[data-theme="government"] .agenda article,
body[data-theme="government"] .matrix-row,
body[data-theme="government"] .subsidiary-list,
body[data-theme="government"] .moat-axis {
  background: rgba(255,255,255,.45);
}

body[data-theme="government"] .layer.platform,
body[data-theme="government"] .layer.carrier,
body[data-theme="government"] .layer.terminal {
  border-left-width: 5px;
}

body[data-theme="government"] .layer:not(:last-child)::after {
  left: 97px;
  color: var(--sea);
}

body[data-theme="government"] .channel-cloud span,
body[data-theme="government"] .settlement-output div,
body[data-theme="government"] .experience-line article,
body[data-theme="government"] .region {
  background: #ffffff;
}

body[data-theme="government"] .settlement-rule,
body[data-theme="government"] .carrier-band {
  background: #e1eceb;
}

body[data-theme="government"] .cover-copy h1 {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 88px;
}

body[data-theme="government"] .cover-statement {
  border-left-color: var(--sea);
}

body[data-theme="government"] .controls {
  background: rgba(12,45,61,.94);
}

/* Variant guide page */
.guide-page {
  overflow: auto;
  background: #10271f;
}

.variant-guide {
  min-height: 100vh;
  padding: 70px 6vw;
  color: #fffaf2;
  background: #10271f;
}

.variant-guide::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .09;
  background-image: linear-gradient(rgba(255,255,255,.8) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.8) 1px, transparent 1px);
  background-size: 120px 120px;
}

.variant-guide > * { position: relative; z-index: 1; }
.variant-guide .eyebrow { color: #d8b56c; }
.variant-guide h1 { max-width: 880px; margin: 0 0 18px; font-size: clamp(42px, 6vw, 86px); line-height: 1.08; }
.variant-guide .guide-lead { max-width: 760px; margin: 0 0 54px; color: rgba(255,255,255,.68); font-size: 22px; line-height: 1.7; }
.variant-grid { display: grid; max-width: 1250px; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.variant-card { display: flex; min-height: 330px; padding: 30px; justify-content: space-between; flex-direction: column; border: 1px solid rgba(255,255,255,.16); border-radius: 10px; background: rgba(255,255,255,.06); transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.variant-card:hover { transform: translateY(-5px); border-color: #d8b56c; background: rgba(255,255,255,.1); }
.variant-card strong { font-size: 29px; }
.variant-card p { color: rgba(255,255,255,.65); font-size: 17px; line-height: 1.7; }
.variant-card a { display: inline-flex; width: fit-content; padding: 12px 16px; align-items: center; border: 1px solid rgba(216,181,108,.72); border-radius: 4px; color: #d8b56c; font-weight: 800; text-decoration: none; }
.variant-card a:hover { color: #10271f; background: #d8b56c; }
.variant-meta { display: flex; margin-bottom: 18px; justify-content: space-between; color: rgba(255,255,255,.45); font-size: 13px; }
.guide-architecture { display: grid; max-width: 1250px; margin-top: 64px; grid-template-columns: repeat(4, 1fr); gap: 12px; align-items: center; }
.guide-architecture div { position: relative; padding: 18px 20px; border-left: 3px solid #d8b56c; background: rgba(255,255,255,.07); }
.guide-architecture div:not(:last-child)::after { content: "→"; position: absolute; top: 50%; right: -27px; color: #d8b56c; font-size: 24px; transform: translateY(-50%); }
.guide-architecture b { display: block; margin-bottom: 5px; font-size: 18px; }
.guide-architecture span { color: rgba(255,255,255,.58); font-size: 14px; }

@media (max-width: 900px) {
  .variant-grid { grid-template-columns: 1fr; }
  .guide-architecture { grid-template-columns: 1fr; }
  .guide-architecture div:not(:last-child)::after { top: auto; right: auto; bottom: -27px; left: 50%; transform: translateX(-50%) rotate(90deg); }
}