:root {
  --bg: #d9e6f5;
  --bg-soft: #c7d8ec;
  --bg-accent: #9ec6ee;
  --bg-deep: #07111f;
  --panel: rgba(232, 241, 251, 0.74);
  --panel-strong: rgba(244, 248, 253, 0.88);
  --text: #081628;
  --muted: #486682;
  --line: rgba(35, 82, 186, 0.16);
  --line-strong: rgba(0, 214, 255, 0.26);
  --accent: #2471ff;
  --accent-2: #00d9ff;
  --accent-3: #74efff;
  --shadow: 0 30px 96px rgba(8, 30, 73, 0.14);
  --radius: 32px;
  --content-width: min(1220px, calc(100vw - 48px));
  --transition-slow: 520ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 260ms cubic-bezier(0.22, 1, 0.36, 1);
  --title-font: "Segoe UI Variable Display", "Segoe UI", sans-serif;
  --body-font: "Segoe UI Variable Text", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--body-font);
  background:
    radial-gradient(circle at 10% 18%, rgba(0, 214, 255, 0.04), transparent 40%),
    radial-gradient(circle at 86% 12%, rgba(36, 113, 255, 0.05), transparent 42%),
    radial-gradient(circle at 52% 84%, rgba(255, 145, 104, 0.03), transparent 38%),
    linear-gradient(180deg, #eff5ff 0%, #edf4ff 52%, #eff5ff 100%);
}

a {
  color: inherit;
}

button {
  font: inherit;
}

.page-shell {
  position: relative;
  min-height: 100vh;
  overflow-x: clip;
  overflow-y: visible;
}

.page-shell::before,
.page-shell::after {
  content: "";
  position: fixed;
  inset: auto;
  pointer-events: none;
  z-index: 0;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.55;
}

.page-shell::before {
  top: 8%;
  right: -4rem;
  width: 18rem;
  height: 18rem;
  background: rgba(36, 93, 255, 0.08);
}

.page-shell::after {
  bottom: 14%;
  left: -3rem;
  width: 14rem;
  height: 14rem;
  background: rgba(0, 214, 255, 0.08);
}

.topbar {
  position: fixed;
  inset: 20px 24px auto;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand,
.lang-toggle {
  border: 1px solid rgba(165, 190, 223, 0.18);
  background: linear-gradient(135deg, rgba(12, 24, 44, 0.82), rgba(47, 74, 118, 0.62));
  backdrop-filter: blur(22px) saturate(155%);
  box-shadow: 0 20px 60px rgba(6, 18, 38, 0.24);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 999px;
  text-decoration: none;
}

.brand-mark {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 6px rgba(47, 107, 255, 0.14);
}

.brand-text {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #eef6ff;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  color: rgba(219, 233, 252, 0.72);
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  color: #f7fbff;
  transform: translateY(-1px);
  box-shadow: 0 18px 50px rgba(0, 214, 255, 0.24);
}

.lang-toggle[data-lang="en"] .lang-toggle-en,
.lang-toggle[data-lang="zh"] .lang-toggle-zh {
  color: #f7fbff;
  font-weight: 700;
}

.lang-toggle-divider {
  color: rgba(215, 228, 244, 0.34);
}

.deck {
  position: relative;
  z-index: 1;
  width: 100%;
  margin: 0;
  padding: 96px 0 88px;
}

.deck-section {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  outline: none;
  opacity: 0.46;
  transform: translateY(38px);
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
}

.deck-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent 15%, transparent 85%, rgba(149, 177, 221, 0.06));
}

.deck-section.is-active,
.deck-section:hover,
.deck-section:focus-within {
  opacity: 1;
  transform: translateY(0);
}

.section-shell {
  position: relative;
  width: min(1220px, calc(100vw - 48px));
  margin: 0 auto;
  padding: clamp(1.2rem, 2vw, 2rem) 0;
}

.section-lead,
.section-points,
.flow-rail,
.host-cloud,
.feature-side,
.closing-links,
.section-detail {
  position: relative;
  z-index: 1;
}

.section-eyebrow {
  margin: 0 0 18px;
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  margin: 0;
  max-width: 10ch;
  font-family: var(--title-font);
  font-size: clamp(2.1rem, 4.3vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
  text-wrap: balance;
}

.section-summary {
  margin: 22px 0 0;
  max-width: 30rem;
  font-size: clamp(1rem, 1.05vw, 1.12rem);
  line-height: 1.58;
  color: var(--muted);
}

.section-detail {
  max-width: 38rem;
  margin-top: 22px;
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast);
}

.section-detail p {
  margin: 0;
  font-size: clamp(0.98rem, 1.05vw, 1.06rem);
  line-height: 1.72;
  color: #214064;
}

.deck-section--problem .section-eyebrow,
.deck-section--continuity .section-eyebrow,
.deck-section--ecosystem .section-eyebrow,
.deck-section--advanced-features .section-eyebrow {
  color: #4b86ff;
}

.deck-section--problem .section-summary,
.deck-section--continuity .section-summary,
.deck-section--ecosystem .section-summary,
.deck-section--advanced-features .section-summary {
  color: #56677d;
}

.deck-section--problem .section-detail p,
.deck-section--continuity .section-detail p,
.deck-section--ecosystem .section-detail p,
.deck-section--advanced-features .section-detail p {
  color: #2f465f;
}

html:lang(zh-CN) .section-eyebrow {
  letter-spacing: 0.16em;
}

html:lang(zh-CN) .section-title {
  max-width: 8.5em;
  font-size: clamp(2rem, 3vw, 3.2rem);
  line-height: 1.14;
  letter-spacing: -0.03em;
  text-wrap: pretty;
}

html:lang(zh-CN) .section-summary {
  max-width: 28em;
  font-size: clamp(1rem, 1.02vw, 1.08rem);
  line-height: 1.78;
}

html:lang(zh-CN) .section-detail p {
  max-width: 30em;
  font-size: clamp(0.98rem, 1.02vw, 1.04rem);
  line-height: 1.84;
}

html:lang(zh-CN) .deck-section--hero .section-title {
  max-width: 8.8em;
  font-size: clamp(2.3rem, 3.2vw, 3.55rem);
  line-height: 1.18;
}

html:lang(zh-CN) .deck-section--problem .section-title,
html:lang(zh-CN) .deck-section--continuity .section-title,
html:lang(zh-CN) .deck-section--workflow .section-title {
  max-width: 7.8em;
}

html:lang(zh-CN) .deck-section--advanced-features .section-title,
html:lang(zh-CN) .deck-section--ecosystem .section-title,
html:lang(zh-CN) .deck-section--closing .section-title {
  max-width: 8.6em;
}

html:lang(zh-CN) .problem-bullet,
html:lang(zh-CN) .point-card h3,
html:lang(zh-CN) .feature-card h3,
html:lang(zh-CN) .flow-step h3 {
  letter-spacing: -0.01em;
}

.deck-section:focus-within .section-detail,
.deck-section:hover .section-detail {
  opacity: 1;
  transform: translateY(0);
}

.deck-section--hero {
  min-height: 88vh;
}

.deck-section--hero .section-shell {
  padding-top: 5.75rem;
  padding-bottom: 3.9rem;
}

.deck-section--hero {
  align-items: center;
  background:
    radial-gradient(circle at 18% 34%, rgba(0, 214, 255, 0.12), transparent 38%),
    radial-gradient(circle at 82% 70%, rgba(36, 113, 255, 0.14), transparent 42%),
    radial-gradient(circle at 56% 12%, rgba(95, 181, 255, 0.1), transparent 34%),
    linear-gradient(135deg, rgba(244, 248, 255, 0.99), rgba(227, 238, 255, 0.97) 44%, rgba(209, 226, 255, 0.95));
}

.deck-section--hero .section-title {
  font-size: clamp(2.55rem, 3.4vw, 3.7rem);
  max-width: 16.5ch;
  margin-inline: auto;
  line-height: 1.02;
  text-align: center;
  text-wrap: pretty;
}

.deck-section--hero .section-summary {
  max-width: 34rem;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  align-items: center;
  justify-items: center;
  text-align: center;
}

.hero-copy {
  grid-column: auto;
  max-width: 54rem;
  margin-top: 0;
  margin-left: 0;
}

.hero-copy .section-lead {
  max-width: 48rem;
  margin-inline: auto;
}

.hero-copy .section-detail {
  max-width: 31rem;
  margin-inline: auto;
}

.visual-hero {
  grid-column: auto;
  justify-self: center;
  width: min(36rem, 48vw);
  min-height: 16rem;
  align-self: center;
}

.hero-orbit,
.hero-accent {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

.hero-orbit {
  border-radius: 999px;
  border: 1px solid rgba(111, 181, 255, 0.18);
}

.hero-orbit-a {
  top: 18%;
  right: 4%;
  width: min(34vw, 28rem);
  height: min(34vw, 28rem);
}

.hero-orbit-b {
  right: 12%;
  bottom: 10%;
  width: min(18vw, 14rem);
  height: min(18vw, 14rem);
  border-color: rgba(0, 214, 255, 0.26);
}

.hero-accent {
  right: 8%;
  top: 28%;
  width: min(24vw, 18rem);
  aspect-ratio: 1;
  border-radius: 34% 66% 64% 36% / 38% 36% 64% 62%;
  background:
    linear-gradient(135deg, rgba(36, 93, 255, 0.3), rgba(0, 214, 255, 0.28));
  filter: blur(12px);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
  gap: clamp(1.6rem, 5vw, 5rem);
  align-items: start;
}

.problem-bullets {
  display: grid;
  grid-template-columns: repeat(3, max-content);
  gap: 0.9rem 1.2rem;
  margin-top: 1.8rem;
}

.problem-bullet {
  display: inline-flex;
  align-items: center;
  padding-left: 1rem;
  position: relative;
  color: #2b4b74;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.problem-bullet::before {
  content: "";
  position: absolute;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 7px rgba(59, 130, 246, 0.08);
}

.deck-section--problem {
  min-height: 80vh;
  background:
    radial-gradient(circle at 82% 24%, rgba(52, 223, 183, 0.11), transparent 38%),
    radial-gradient(circle at 14% 84%, rgba(0, 214, 255, 0.11), transparent 40%),
    linear-gradient(135deg, rgba(244, 251, 250, 0.985), rgba(230, 246, 242, 0.97) 46%, rgba(210, 236, 231, 0.95));
}

.deck-section--problem .split-layout {
  grid-template-columns: 1fr;
  max-width: 42rem;
  gap: 1.25rem;
  align-items: start;
}

.deck-section--problem .section-summary {
  max-width: 24rem;
}

.problem-copy .section-lead {
  max-width: 38rem;
}

.deck-section--problem .section-detail {
  max-width: 20rem;
  margin: 0;
}

.deck-section--problem .section-detail p {
  font-size: 0.98rem;
  line-height: 1.64;
  color: #35587f;
}

.problem-note {
  align-self: start;
  justify-self: start;
  margin-top: 0;
  margin-left: 0;
  padding-left: 0;
  padding-bottom: 0;
  border-left: 0;
}

.section-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
  margin-top: 2.8rem;
}

.deck-section--continuity {
  background:
    radial-gradient(circle at 18% 76%, rgba(88, 230, 124, 0.11), transparent 42%),
    radial-gradient(circle at 82% 18%, rgba(187, 255, 72, 0.1), transparent 38%),
    linear-gradient(135deg, rgba(248, 252, 239, 0.985), rgba(236, 248, 225, 0.97) 55%, rgba(219, 240, 204, 0.95));
}

.deck-section--workflow {
  background:
    radial-gradient(circle at 78% 16%, rgba(64, 136, 255, 0.14), transparent 40%),
    radial-gradient(circle at 14% 86%, rgba(0, 214, 255, 0.13), transparent 42%),
    linear-gradient(135deg, rgba(244, 248, 255, 0.985), rgba(227, 239, 252, 0.975) 52%, rgba(200, 231, 248, 0.95));
}

.deck-section--continuity .section-shell {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.continuity-layout {
  display: grid;
  grid-template-columns: minmax(22rem, 0.8fr) minmax(24rem, 1.2fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.continuity-copy {
  max-width: 28rem;
  padding-top: 3rem;
}

.continuity-copy .section-title {
  max-width: 8.8ch;
}

.continuity-copy .section-lead,
.continuity-copy .section-detail {
  margin-left: 0;
}

.deck-section--continuity .section-points {
  grid-template-columns: 1fr;
  margin-top: 0;
}

.deck-section--continuity .point-card {
  grid-template-columns: 9rem minmax(0, 1fr);
  gap: 1.25rem;
}

.continuity-side {
  position: relative;
  min-height: auto;
  padding-top: 0;
}

.point-card,
.feature-card {
  padding: 0 0 1.1rem;
  border: 0;
  border-bottom: 1px solid rgba(35, 82, 186, 0.16);
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    opacity var(--transition-fast);
}

.deck-section--continuity .point-card {
  display: grid;
  grid-template-columns: minmax(8rem, 0.48fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.deck-section--continuity .point-card p,
.deck-section--advanced-features .feature-card p {
  margin-top: 0;
}

.point-card:hover,
.feature-card:hover,
.deck-section.is-active .point-card,
.deck-section.is-active .feature-card {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  opacity: 1;
}

.point-card h3,
.feature-card h3,
.flow-step h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.point-card p,
.feature-card p,
.flow-step p {
  margin: 0.6rem 0 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--muted);
}

.flow-module {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
  margin-top: 1rem;
  width: 100%;
}

.flow-display {
  min-height: auto;
  order: 2;
  width: min(34rem, 100%);
  margin: 0 auto;
  padding: 1.1rem 1.2rem 1.15rem;
  border: 1px solid rgba(76, 132, 232, 0.14);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(0, 214, 255, 0.08), transparent 42%),
    rgba(245, 249, 255, 0.76);
  box-shadow: 0 18px 34px rgba(18, 47, 95, 0.12);
  text-align: center;
}

.flow-display-label {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.flow-display-count {
  color: rgba(58, 87, 129, 0.52);
  letter-spacing: 0.12em;
}

.flow-display-text {
  margin: 0.65rem 0 0;
  color: rgba(30, 58, 96, 0.78);
  font-size: 1rem;
  line-height: 1.66;
  max-width: none;
}

.flow-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  order: 1;
  margin-top: 0;
  padding: 0;
  position: relative;
  width: 100%;
}

.flow-rail::before {
  content: "";
  position: absolute;
  left: 4%;
  right: 4%;
  top: 1rem;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 214, 255, 0.14), rgba(125, 211, 252, 0.34), rgba(0, 214, 255, 0.14));
}

.deck-section--workflow .flow-rail::before {
  background: linear-gradient(90deg, rgba(74, 149, 255, 0.14), rgba(0, 214, 255, 0.28), rgba(74, 149, 255, 0.14));
}

.flow-step {
  position: relative;
  padding: 1.5rem 0.75rem 0.6rem;
  border-top: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 18px;
  cursor: pointer;
  text-align: center;
  transition:
    transform 280ms ease,
    border-color 280ms ease,
    background 280ms ease,
    opacity 280ms ease;
}

.flow-step-index {
  display: inline-block;
  margin-bottom: 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.flow-step-accent {
  display: inline-flex;
  margin-bottom: 0.5rem;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  background: rgba(216, 235, 255, 0.72);
  border: 1px solid rgba(126, 173, 236, 0.24);
  color: rgba(26, 61, 110, 0.88);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.flow-step::before {
  content: "";
  position: absolute;
  top: 0.45rem;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 8px rgba(59, 130, 246, 0.08);
}

.deck-section--workflow .flow-step::before {
  box-shadow: 0 0 0 8px rgba(0, 214, 255, 0.08);
}

.deck-section--workflow .flow-step h3 {
  font-size: 1.02rem;
  margin: 0;
}

.deck-section--workflow .flow-step p {
  display: none;
}

.deck-section--workflow .flow-step.is-current h3 {
  color: #0f223f;
}

.deck-section--workflow .flow-step.is-current p {
  color: rgba(36, 71, 116, 0.74);
}

.deck-section--workflow .flow-step.is-current .flow-step-accent {
  background: rgba(0, 214, 255, 0.1);
  border-color: rgba(120, 182, 255, 0.24);
}

.deck-section--workflow .flow-step:hover,
.deck-section--workflow .flow-step:focus-visible,
.deck-section--workflow .flow-step.is-current {
  transform: translateY(-3px);
  border-color: rgba(120, 182, 255, 0.18);
  background: rgba(221, 236, 255, 0.48);
}

.deck-section--workflow .section-lead {
  display: block;
  margin-inline: auto;
}

.deck-section--workflow .section-shell {
  padding: 4.6rem 0 4.2rem;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
}

.deck-section--workflow .section-eyebrow,
.deck-section--workflow .flow-step-index {
  color: #357fff;
}

.deck-section--workflow .section-title,
.deck-section--workflow .flow-step h3 {
  color: #0a1830;
}

.deck-section--workflow .section-summary,
.deck-section--workflow .flow-step p {
  color: rgba(52, 81, 120, 0.78);
}

.deck-section--workflow .section-detail p {
  color: rgba(52, 81, 120, 0.78);
}

.deck-section--workflow .section-title {
  max-width: 12ch;
  font-size: clamp(2rem, 2.7vw, 2.8rem);
  line-height: 1.02;
  margin-inline: auto;
  text-align: center;
}

.deck-section--workflow .section-summary {
  margin-top: 1rem;
  max-width: 28rem;
}

.flow-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
  justify-items: center;
}

.flow-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  align-items: center;
  justify-items: center;
  text-align: center;
  max-width: 34rem;
}

.flow-intro {
  position: static;
}

.host-cloud {
  display: grid;
  grid-template-columns: repeat(4, max-content);
  justify-content: space-between;
  gap: 1.4rem 1rem;
  margin-top: 4.5rem;
  max-width: 100%;
  align-items: center;
}

.deck-section--ecosystem {
  background:
    radial-gradient(circle at 84% 24%, rgba(166, 116, 255, 0.11), transparent 40%),
    radial-gradient(circle at 22% 74%, rgba(255, 151, 113, 0.1), transparent 34%),
    linear-gradient(135deg, rgba(255, 244, 241, 0.985), rgba(248, 232, 242, 0.97) 54%, rgba(229, 225, 252, 0.95));
}

.deck-section--ecosystem::before {
  display: none;
}

.host-pill,
.closing-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 0;
  border: 0;
  background: transparent;
  color: #122b45;
  font-size: clamp(1.2rem, 2vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.deck-section--continuity .section-title,
.deck-section--continuity .point-card h3 {
  color: #1f3913;
}

.deck-section--continuity .section-summary,
.deck-section--continuity .section-detail p,
.deck-section--continuity .point-card p {
  color: rgba(69, 92, 49, 0.82);
}

.deck-section--continuity .point-card {
  border-color: rgba(124, 194, 78, 0.18);
}

.deck-section--ecosystem .section-title,
.deck-section--ecosystem .host-pill {
  color: #27183f;
}

.deck-section--ecosystem .section-summary,
.deck-section--ecosystem .section-detail p {
  color: rgba(92, 72, 112, 0.8);
}

.deck-section--ecosystem .host-pill {
  border-color: rgba(183, 140, 224, 0.2);
}

.deck-section--ecosystem .section-shell::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 61%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(183, 140, 224, 0.26), transparent);
  display: none;
}

.deck-section--ecosystem .section-shell {
  text-align: center;
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.deck-section--ecosystem .section-lead {
  margin-inline: auto;
}

.deck-section--ecosystem .section-title,
.deck-section--ecosystem .section-summary,
.deck-section--ecosystem .section-detail {
  margin-inline: auto;
}

.feature-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.88fr) minmax(22rem, 1.12fr);
  gap: clamp(1.8rem, 5vw, 4rem);
  align-items: start;
}

.deck-section--advanced-features {
  min-height: 68vh;
  background:
    radial-gradient(circle at 78% 24%, rgba(0, 214, 255, 0.12), transparent 40%),
    radial-gradient(circle at 12% 16%, rgba(36, 113, 255, 0.08), transparent 36%),
    linear-gradient(135deg, rgba(239, 249, 253, 0.985), rgba(222, 239, 246, 0.965) 56%, rgba(198, 226, 236, 0.945));
}

.deck-section--problem .section-eyebrow {
  color: #15bfa0;
}

.deck-section--continuity .section-eyebrow {
  color: #5fa400;
}

.deck-section--ecosystem .section-eyebrow {
  color: #ff7d5b;
}

.deck-section--advanced-features .section-eyebrow {
  color: #0aa9d3;
}

.feature-head {
  max-width: 29rem;
  margin-inline: 0;
  padding-top: 0.4rem;
  text-align: left;
}

.feature-head .section-lead,
.feature-head .section-detail {
  margin-inline: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 2rem;
}

.closing-links {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2.6rem;
}

.deck-section--closing .section-shell {
  padding-top: 8rem;
  padding-bottom: 8rem;
}

.deck-section--closing {
  background:
    radial-gradient(circle at 18% 16%, rgba(0, 214, 255, 0.11), transparent 40%),
    radial-gradient(circle at 82% 72%, rgba(58, 109, 255, 0.13), transparent 42%),
    linear-gradient(135deg, rgba(242, 247, 255, 0.99), rgba(223, 233, 255, 0.97) 54%, rgba(204, 221, 255, 0.95));
}

.deck-section--closing .section-lead {
  max-width: 44rem;
}

.deck-section--closing .section-title {
  max-width: 12ch;
}

.closing-layout {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 1.8rem;
}

.closing-copy {
  max-width: 38rem;
}

.closing-copy .section-lead,
.closing-copy .section-detail {
  margin-inline: auto;
}

.copy-prompt {
  width: min(100%, 34rem);
  display: grid;
  gap: 0.45rem;
  text-align: left;
  padding: 0.9rem 1rem 0.78rem;
  margin: 0.8rem auto 0;
  border: 1px solid rgba(27, 72, 153, 0.1);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 10px 24px rgba(61, 103, 174, 0.05);
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.copy-prompt:hover,
.copy-prompt:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(45, 125, 255, 0.18);
  box-shadow: 0 14px 30px rgba(61, 103, 174, 0.08);
  background: rgba(255, 255, 255, 0.66);
  outline: none;
}

.copy-prompt.is-copied {
  border-color: rgba(18, 181, 143, 0.2);
  background: rgba(247, 255, 252, 0.78);
}

.copy-prompt-text {
  font-size: clamp(0.98rem, 1.2vw, 1.08rem);
  line-height: 1.35;
  font-weight: 600;
  color: #13284f;
  word-break: break-word;
}

.copy-prompt-status {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #5f86c8;
  justify-self: end;
  text-align: right;
}

.copy-prompt.is-copied .copy-prompt-status {
  color: #129d7e;
}

.closing-link {
  position: relative;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0;
  padding-bottom: 0;
  text-decoration: none;
}

.deck-section--advanced-features .section-shell {
  padding-top: 3rem;
  padding-bottom: 2.5rem;
}

.feature-side .section-detail {
  max-width: 30rem;
}

.deck-section--advanced-features .section-title {
  max-width: 11.5ch;
  font-size: clamp(2.15rem, 2.9vw, 3.2rem);
}

.deck-section--problem .section-title,
.deck-section--continuity .section-title {
  max-width: 11ch;
  font-size: clamp(2.15rem, 2.9vw, 3.25rem);
  line-height: 1.02;
}

.deck-section--ecosystem .section-title {
  max-width: 10.5ch;
  font-size: clamp(2.35rem, 4.2vw, 3.8rem);
  line-height: 1.04;
}

.section-visual {
  position: relative;
}

.visual-glow,
.visual-device,
.feature-accent,
.closing-wave {
  position: absolute;
  border-radius: 999px;
}

.visual-glow-a {
  inset: 3rem auto auto 3rem;
  width: 20rem;
  height: 20rem;
  background: rgba(59, 130, 246, 0.16);
  filter: blur(24px);
}

.visual-glow-b {
  inset: auto auto 3rem 10%;
  width: 16rem;
  height: 16rem;
  background: rgba(0, 214, 255, 0.18);
  filter: blur(28px);
}

.visual-device-a {
  inset: 4rem auto auto 3rem;
  width: min(30vw, 24rem);
  height: min(30vw, 24rem);
  border-radius: 34% 66% 58% 42% / 40% 34% 66% 60%;
  background: linear-gradient(180deg, rgba(255,255,255,0.7), rgba(179, 229, 255, 0.75));
  border: 1px solid rgba(59, 130, 246, 0.14);
}

.visual-device-b {
  inset: auto auto 2rem 11rem;
  width: 9rem;
  height: 9rem;
  border: 1px solid rgba(59, 130, 246, 0.16);
  background: rgba(255,255,255,0.18);
}

.visual-problem {
  margin-top: 3rem;
  display: grid;
  gap: 1rem;
  max-width: 24rem;
}

.visual-line {
  display: block;
  height: 1px;
  background: linear-gradient(90deg, rgba(59,130,246,0.4), transparent);
}

.visual-line:nth-child(2) {
  width: 72%;
}

.visual-line:nth-child(3) {
  width: 48%;
}

.visual-continuity {
  position: relative;
  top: auto;
  right: auto;
  left: 0;
  min-height: auto;
  margin-bottom: 0;
  pointer-events: none;
}

.impact-stack {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  margin-bottom: 2rem;
}

.impact-stack span {
  display: block;
  font-size: clamp(1.9rem, 2.8vw, 3rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
  text-align: left;
  color: rgba(31, 64, 100, 0.1);
}

.visual-flow {
  display: flex;
  justify-content: center;
  margin-top: 0.35rem;
}

.flow-badge {
  display: inline-flex;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.1);
  color: #2b4b74;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.visual-hosts {
  position: relative;
  width: min(28rem, 72vw);
  height: 12rem;
  margin: 2rem auto 1rem;
}

.host-node {
  position: absolute;
  display: inline-flex;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(59,130,246,0.14);
  box-shadow: 0 8px 24px rgba(59,130,246,0.08);
  font-size: 0.88rem;
  font-weight: 700;
  color: #1e3a5f;
}

.host-node:nth-child(1) { left: 6%; top: 36%; }
.host-node:nth-child(2) { left: 32%; top: 6%; }
.host-node:nth-child(3) { right: 26%; top: 52%; }
.host-node:nth-child(4) { right: 4%; top: 18%; }

.visual-features {
  min-height: 1rem;
}

.feature-accent:nth-child(1) {
  top: -0.5rem;
  right: 1rem;
  width: 6rem;
  height: 6rem;
  background: rgba(0, 214, 255, 0.1);
  filter: blur(24px);
}

.feature-accent:nth-child(2) {
  bottom: -0.5rem;
  left: 0;
  width: 8rem;
  height: 8rem;
  background: rgba(36, 93, 255, 0.08);
  filter: blur(26px);
}

.visual-closing {
  position: absolute;
  inset: auto 0 0 auto;
  width: min(26rem, 44vw);
  height: 10rem;
  pointer-events: none;
  display: none;
}

.closing-wave {
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 214, 255, 0.42), transparent);
}

.deck-section--hero .section-eyebrow,
.deck-section--closing .section-eyebrow {
  color: #4f89ff;
}

.deck-section--hero .section-title,
.deck-section--closing .section-title {
  color: #10203f;
}

.deck-section--hero .section-summary,
.deck-section--closing .section-summary,
.deck-section--hero .section-detail p,
.deck-section--closing .section-detail p,
.deck-section--closing .section-lead {
  color: rgba(67, 93, 130, 0.82);
}

.deck-section--closing .closing-link {
  color: #1b315a;
}

.deck-section--hero .section-title,
.deck-section--hero .section-summary,
.deck-section--hero .section-detail {
  transition:
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.deck-section--hero:not(.is-active) .section-title,
.deck-section--hero:not(.is-active) .section-summary,
.deck-section--hero:not(.is-active) .section-detail {
  transform: translateY(18px);
}

.deck-section--hero.is-active .visual-device-a,
.deck-section--hero.is-active .visual-device-b {
  transform: translateY(-10px) scale(1.01);
}

.visual-device-a,
.visual-device-b,
.visual-glow-a,
.visual-glow-b {
  transition:
    transform 900ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 900ms cubic-bezier(0.22, 1, 0.36, 1);
}

.deck-section--problem .visual-line {
  transform-origin: left center;
  transform: scaleX(0.55);
  opacity: 0.42;
  transition:
    transform 600ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.deck-section--problem.is-active .visual-line {
  transform: scaleX(1);
  opacity: 1;
}

.problem-bullet {
  transition:
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 520ms cubic-bezier(0.22, 1, 0.36, 1);
}

.deck-section--problem:not(.is-active) .problem-bullet {
  opacity: 0.58;
  transform: translateY(8px);
}

.deck-section--problem .problem-bullet:nth-child(2) {
  transition-delay: 70ms;
}

.deck-section--problem .problem-bullet:nth-child(3) {
  transition-delay: 140ms;
}

.point-card {
  transition:
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 520ms cubic-bezier(0.22, 1, 0.36, 1);
}

.deck-section--continuity:not(.is-active) .point-card {
  opacity: 0.56;
  transform: translateY(12px);
}

.deck-section--continuity .point-card:nth-child(2) {
  transition-delay: 70ms;
}

.deck-section--continuity .point-card:nth-child(3) {
  transition-delay: 140ms;
}

.flow-step {
  transition:
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 520ms cubic-bezier(0.22, 1, 0.36, 1);
}

.deck-section--workflow:not(.is-active) .flow-step {
  opacity: 0.5;
  transform: translateX(18px);
}

.deck-section--workflow .flow-step:nth-child(2) {
  transition-delay: 60ms;
}

.deck-section--workflow .flow-step:nth-child(3) {
  transition-delay: 120ms;
}

.deck-section--workflow .flow-step:nth-child(4) {
  transition-delay: 180ms;
}

.deck-section--workflow .flow-step:nth-child(5) {
  transition-delay: 240ms;
}

.host-node,
.host-pill {
  transition:
    transform 560ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

.deck-section--ecosystem:not(.is-active) .host-node,
.deck-section--ecosystem:not(.is-active) .host-pill {
  opacity: 0.52;
  transform: translateY(10px) scale(0.98);
}

.feature-card,
.closing-link {
  transition:
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 520ms cubic-bezier(0.22, 1, 0.36, 1),
    border-color var(--transition-fast),
    opacity var(--transition-fast);
}

.deck-section--advanced-features:not(.is-active) .feature-card {
  opacity: 0.58;
  transform: translateY(12px);
}

.deck-section--advanced-features .feature-card:nth-child(2) {
  transition-delay: 50ms;
}

.deck-section--advanced-features .feature-card:nth-child(3) {
  transition-delay: 100ms;
}

.deck-section--advanced-features .feature-card:nth-child(4) {
  transition-delay: 150ms;
}

.deck-section--closing:not(.is-active) .closing-link {
  opacity: 0.52;
  transform: translateY(8px);
}

@media (max-width: 1080px) {
  .section-points,
  .flow-rail,
  .feature-grid,
  .feature-layout,
  .hero-layout,
  .continuity-layout,
  .flow-module,
  .flow-layout,
  .deck-section--continuity .section-shell,
  .deck-section--closing .section-shell,
  .split-layout {
    grid-template-columns: 1fr;
  }

  .flow-step {
    padding-left: 1rem;
  }

  .flow-step::before {
    left: -1.76rem;
    top: 0.9rem;
  }

  .flow-rail::before,
  .deck-section--ecosystem .section-shell::after {
    display: none;
  }

  .host-cloud {
    grid-template-columns: repeat(2, max-content);
    justify-content: start;
  }

  .problem-bullets {
    grid-template-columns: 1fr;
  }

  .visual-hosts {
    width: 100%;
    height: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
  }

  .host-node {
    position: static;
  }

  .hero-copy,
  .feature-head,
  .continuity-copy {
    max-width: none;
    padding-top: 0;
  }

  .hero-copy,
  .feature-head {
    grid-column: auto;
    text-align: center;
  }

  .hero-copy .section-lead,
  .hero-copy .section-detail,
  .feature-head .section-lead,
  .feature-head .section-detail {
    margin-inline: auto;
  }

  .problem-note {
    justify-self: start;
    align-self: start;
    padding-left: 0;
    padding-bottom: 0;
    border-left: 0;
  }

  .continuity-side {
    min-height: auto;
    padding-top: 0;
  }
}

@media (max-width: 1280px) {
  .deck {
    width: 100%;
  }

  .deck-section--hero .section-title {
    font-size: clamp(2.8rem, 4.8vw, 4.6rem);
    max-width: 7.8ch;
  }

  .deck-section--problem .section-title,
  .deck-section--continuity .section-title,
  .deck-section--ecosystem .section-title {
    font-size: clamp(2.2rem, 3.8vw, 3.6rem);
  }

  .deck-section--workflow .section-title,
  .deck-section--advanced-features .section-title,
  .deck-section--closing .section-title {
    font-size: clamp(2rem, 3.5vw, 3.2rem);
  }
}

@media (max-width: 900px) {
  .topbar {
    inset: 16px 16px auto;
  }

  .deck {
    padding-top: 88px;
  }

  .deck-section {
    min-height: auto;
    padding: 20px 0;
    opacity: 1;
    transform: none;
  }

  .section-shell {
    width: min(100vw - 28px, 1220px);
    padding: 0.6rem 0;
  }

  .deck-section--workflow .section-shell,
  .deck-section--ecosystem .section-shell {
    padding: 2.25rem 1.5rem;
    border-radius: 24px;
  }

  .flow-display {
    margin-bottom: 1rem;
  }

  .flow-intro {
    position: static;
  }

  .section-title {
    max-width: none;
    font-size: clamp(2.4rem, 10vw, 4.2rem);
    line-height: 0.98;
  }

  .deck-section--hero .section-title {
    font-size: clamp(2.8rem, 11vw, 4.6rem);
    max-width: 6.2ch;
  }

  .deck-section--workflow .section-summary,
  .deck-section--ecosystem .section-summary,
  .deck-section--advanced-features .section-summary {
    max-width: 28rem;
  }

  .hero-orbit,
  .hero-accent,
  .visual-hero,
  .visual-hosts,
  .visual-features,
  .visual-closing,
  .deck-section--ecosystem .section-shell::after {
    display: none;
  }

  .host-cloud {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem 1.25rem;
  }

  .host-pill {
    font-size: 1.2rem;
    justify-content: flex-start;
  }

  .closing-links {
    gap: 1rem 1.4rem;
  }
}

@media (hover: none) {
  .section-detail {
    opacity: 1;
    transform: none;
  }

  .point-card,
  .feature-card {
    transform: none;
  }
}