.keynote-slide {
  --s-bg: #0d0f0e;
  --s-ink: #f5f4ee;
  --s-muted: #979c97;
  --s-accent: #c9f5a3;
  --s-line: #ffffff25;
  width: 1280px;
  height: 720px;
  position: relative;
  overflow: hidden;
  background: var(--s-bg);
  color: var(--s-ink);
  font-family:
    "Avenir Next", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  isolation: isolate;
}
.keynote-slide * {
  box-sizing: border-box;
}
.theme-paper {
  --s-bg: #f3f0e8;
  --s-ink: #242823;
  --s-muted: #74786f;
  --s-accent: #446743;
  --s-line: #29352c30;
}
.theme-ember {
  --s-bg: #21120e;
  --s-ink: #fff0da;
  --s-muted: #bd9884;
  --s-accent: #ff9a63;
  --s-line: #ffc49d30;
}
.slide-meta,
.slide-footer {
  position: absolute;
  left: 54px;
  right: 54px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  letter-spacing: 1.5px;
  z-index: 3;
}
.slide-meta {
  top: 32px;
  color: var(--s-muted);
}
.slide-meta span:first-child {
  max-width: 600px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.slide-meta span:last-child {
  font-size: 9px;
}
.slide-footer {
  bottom: 28px;
  color: var(--s-muted);
  font-size: 9px;
  letter-spacing: 1.6px;
}
.scene-copy {
  position: relative;
  z-index: 2;
  margin: 0;
}
.slide-kicker {
  font-size: 14px;
  color: var(--s-accent);
  letter-spacing: 2px;
  font-weight: 500;
  margin: 0 0 28px;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.keynote-slide h1 {
  font-weight: 600;
  font-size: 87px;
  line-height: 1.1;
  letter-spacing: -4px;
  margin: 0;
  text-wrap: balance;
  overflow-wrap: anywhere;
}
.keynote-slide[lang="zh-CN"] h1 {
  letter-spacing: -3px;
  font-size: 82px;
  line-height: 1.18;
}
.keynote-slide h1.title-medium {
  font-size: 64px;
  letter-spacing: -2px;
}
.keynote-slide h1.title-compact {
  font-size: 49px;
  letter-spacing: -1px;
}
.slide-body {
  font-size: 21px;
  line-height: 1.7;
  color: var(--s-muted);
  max-width: 730px;
  margin: 26px 0 0;
  overflow-wrap: anywhere;
  text-wrap: pretty;
}
.scene-hook .scene-copy {
  position: absolute;
  left: 76px;
  top: 190px;
  max-width: 990px;
}
.scene-hook h1 {
  max-width: 980px;
}
.scene-hook .slide-body {
  font-size: 19px;
  max-width: 760px;
}
.hook-orbit {
  position: absolute;
  width: 590px;
  height: 590px;
  right: -100px;
  top: 70px;
  border: 1px solid var(--s-line);
  border-radius: 50%;
  box-shadow:
    0 0 0 75px #a2d88905,
    0 0 0 150px #a2d88903;
}
.hook-orbit:before {
  content: "";
  position: absolute;
  inset: 90px;
  border: 1px solid var(--s-line);
  border-radius: 50%;
}
.opening-line {
  position: absolute;
  left: 76px;
  bottom: 111px;
  width: 70px;
  height: 4px;
  background: var(--s-accent);
}
.scene-problem .scene-copy {
  position: absolute;
  left: 76px;
  top: 190px;
  max-width: 960px;
}
.scene-problem .slide-body {
  max-width: 700px;
}
.problem-index {
  position: absolute;
  right: 66px;
  top: 52px;
  font:
    650 520px/1 Georgia,
    serif;
  color: var(--s-accent);
  opacity: 0.07;
  transform: rotate(-9deg);
}
.problem-caption {
  position: absolute;
  left: 76px;
  bottom: 100px;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--s-muted);
}
.scene-reveal .reveal-copy {
  position: absolute;
  left: 76px;
  top: 245px;
  z-index: 2;
  max-width: 650px;
}
.scene-reveal h1 {
  font-size: 86px;
  line-height: 1.05;
  letter-spacing: -4px;
  max-width: 650px;
}
.scene-reveal[lang="zh-CN"] h1 {
  font-size: 84px;
}
.scene-reveal h1.title-medium {
  font-size: 62px;
}
.scene-reveal h1.title-compact {
  font-size: 46px;
}
.scene-reveal .slide-body {
  max-width: 500px;
}
.reveal-art {
  position: absolute;
  width: 650px;
  height: 610px;
  right: -10px;
  top: 65px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-photo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 35px 25px #0005);
}
.reveal-glow {
  position: absolute;
  width: 660px;
  height: 600px;
  right: -60px;
  top: 60px;
  background: radial-gradient(ellipse, var(--s-accent), transparent 65%);
  opacity: 0.09;
}
.sculpture {
  position: relative;
  width: 410px;
  height: 410px;
  perspective: 800px;
  transform: rotate(-12deg);
}
.sculpture-core {
  position: absolute;
  inset: 85px;
  border-radius: 50%;
  background: radial-gradient(
    circle at 30% 20%,
    #eef7e9,
    #869580 25%,
    #26352b 55%,
    #0f1410 75%
  );
  box-shadow:
    inset -10px -20px 40px #000a,
    0 0 90px #c9f5a315;
}
.theme-ember .sculpture-core {
  background: radial-gradient(
    circle at 30% 20%,
    #fff1cf,
    #c98a5a 25%,
    #6c3e28 55%,
    #24180f 75%
  );
}
.sculpture-orbit {
  position: absolute;
  inset: 30px;
  border: 2px solid var(--s-accent);
  border-radius: 50%;
  transform: rotateX(65deg) rotateZ(-25deg);
  opacity: 0.65;
}
.orbit-b {
  inset: 0;
  transform: rotateY(70deg) rotateZ(20deg);
  opacity: 0.25;
}
.sculpture-ring {
  position: absolute;
  inset: 66px;
  border: 1px solid var(--s-accent);
  border-radius: 50%;
  opacity: 0.25;
}
.scene-architecture .scene-copy {
  position: absolute;
  left: 76px;
  top: 112px;
  max-width: 1090px;
}
.scene-architecture h1 {
  font-size: 65px;
  letter-spacing: -2px;
}
.scene-architecture[lang="zh-CN"] h1 {
  font-size: 61px;
}
.architecture-flow {
  position: absolute;
  left: 76px;
  right: 76px;
  top: 360px;
  display: flex;
  align-items: center;
  gap: 22px;
}
.architecture-node {
  flex: 1;
  min-width: 0;
  position: relative;
  border-top: 1px solid var(--s-line);
  padding-top: 20px;
}
.node-number {
  position: absolute;
  top: 17px;
  left: 0;
  font-size: 11px;
  color: var(--s-muted);
  font-family: monospace;
}
.node-visual {
  height: 65px;
  margin: 12px 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}
.node-visual i {
  height: 29px;
  width: 29px;
  border: 1px solid var(--s-accent);
  border-radius: 50%;
}
.node-1 i {
  border-radius: 5px;
  height: 39px;
  width: 12px;
  background: var(--s-accent);
  opacity: 0.8;
  transform: skewY(-15deg);
}
.node-1 i:nth-child(2) {
  height: 55px;
}
.node-1 i:nth-child(3) {
  height: 45px;
}
.node-2 i {
  height: 8px;
  width: 8px;
  background: var(--s-accent);
  box-shadow:
    0 17px 0 var(--s-accent),
    0 -17px 0 var(--s-accent);
}
.architecture-node h2 {
  font-size: 22px;
  font-weight: 500;
  text-align: center;
  line-height: 1.45;
  margin: 0;
  overflow-wrap: anywhere;
  max-height: 97px;
  overflow: hidden;
}
.flow-arrow {
  font-size: 25px;
  color: var(--s-muted);
  transform: translateY(-25px);
}
.architecture-caption {
  position: absolute;
  bottom: 90px;
  left: 76px;
  font-size: 16px;
  color: var(--s-muted);
  max-width: 1080px;
}
.scene-benefits .scene-copy {
  position: absolute;
  left: 76px;
  top: 125px;
  max-width: 520px;
}
.scene-benefits h1,
.scene-benefits[lang="zh-CN"] h1 {
  font-size: 65px;
  letter-spacing: -2px;
}
.benefit-list {
  position: absolute;
  left: 670px;
  right: 76px;
  top: 160px;
}
.benefit-item {
  display: flex;
  gap: 20px;
  padding: 26px 0;
  border-top: 1px solid var(--s-line);
  align-items: flex-start;
}
.benefit-item span {
  font-family: monospace;
  font-size: 12px;
  color: var(--s-accent);
  padding-top: 6px;
}
.benefit-item h2 {
  font-size: 27px;
  line-height: 1.35;
  font-weight: 500;
  margin: 0;
  overflow-wrap: anywhere;
  max-height: 115px;
  overflow: hidden;
}
.benefit-caption {
  position: absolute;
  bottom: 115px;
  left: 76px;
  max-width: 490px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--s-muted);
}
.scene-twist {
  background: var(--s-accent);
  color: var(--s-bg);
}
.scene-twist .slide-meta,
.scene-twist .slide-footer {
  color: var(--s-bg);
  opacity: 0.55;
}
.scene-twist .scene-copy {
  position: absolute;
  left: 76px;
  right: 76px;
  top: 198px;
  max-width: 1050px;
}
.scene-twist .slide-kicker {
  color: var(--s-bg);
  opacity: 0.65;
}
.scene-twist .slide-body {
  color: var(--s-bg);
  opacity: 0.6;
  font-size: 16px;
}
.scene-twist h1 {
  font-size: 84px;
}
.twist-star {
  position: absolute;
  font: 450px/1 Arial;
  right: -65px;
  bottom: -60px;
  opacity: 0.07;
  transform: rotate(15deg);
}
.scene-closing .scene-copy {
  position: absolute;
  inset: 165px 76px 80px;
  text-align: center;
}
.scene-closing .slide-body {
  margin-left: auto;
  margin-right: auto;
}
.scene-closing .slide-kicker {
  letter-spacing: 5px;
}
.scene-closing h1 {
  font-size: 85px;
}
.closing-frame {
  position: absolute;
  inset: 82px 33px;
  border: 1px solid var(--s-line);
  border-radius: 180px;
}
.closing-mark {
  display: inline-block;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -6px;
  margin-top: 34px;
}
.closing-mark span {
  font-size: 29px;
  color: var(--s-accent);
}
.keynote-slide.animate .scene-copy,
.keynote-slide.animate .reveal-copy {
  animation: copy-enter 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.keynote-slide.animate .reveal-art {
  animation: product-enter 1.1s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.keynote-slide.animate .architecture-node {
  animation: copy-enter 0.7s both;
}
.keynote-slide.animate .architecture-node:nth-of-type(2) {
  animation-delay: 0.12s;
}
.keynote-slide.animate .architecture-node:nth-of-type(3) {
  animation-delay: 0.24s;
}
.keynote-slide.animate .benefit-item {
  animation: copy-enter 0.7s both;
}
.keynote-slide.animate .benefit-item:nth-child(2) {
  animation-delay: 0.1s;
}
.keynote-slide.animate .benefit-item:nth-child(3) {
  animation-delay: 0.2s;
}
@keyframes copy-enter {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes product-enter {
  from {
    opacity: 0;
    transform: translateX(40px) scale(0.94);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}
@media (prefers-reduced-motion: reduce) {
  .keynote-slide.animate * {
    animation: none !important;
  }
}
.keynote-slide h1 {
  max-height: 310px;
  overflow: hidden;
}
.scene-architecture h1 {
  max-height: 215px;
}
.scene-benefits h1 {
  max-height: 350px;
}
.scene-reveal h1 {
  max-height: 250px;
}
.keynote-slide .slide-body {
  max-height: 120px;
  overflow: hidden;
}
.scene-closing h1 {
  max-height: 290px;
}
.architecture-caption {
  max-height: 54px;
  overflow: hidden;
}
.benefit-caption {
  max-height: 100px;
  overflow: hidden;
}
/* Reserve space for body copy and diagrams, including long editable headings. */
.scene-hook h1,
.scene-problem h1,
.scene-twist h1,
.scene-closing h1 {
  max-height: 225px;
}
.scene-architecture h1 {
  max-height: 175px;
}
.scene-benefits h1 {
  max-height: 275px;
}
.scene-reveal .reveal-copy {
  width: 540px;
  max-width: 540px;
}
.scene-reveal h1 {
  max-height: 210px;
}
.scene-problem .slide-body {
  max-height: 88px;
}
.opening-line {
  bottom: 76px;
}