/* CarysCloud — getminds.ai first-screen recreation
   White canvas · Selecta-like Neue Montreal · blue CTA ring
   Scroll-driven particle zoom with mouse-followed origin
*/

@font-face {
  font-family: "PP Neue Montreal";
  font-style: normal;
  font-weight: 350;
  font-display: swap;
  src: url("./fonts/PPNeueMontreal-Book.woff2") format("woff2");
}

@font-face {
  font-family: "PP Neue Montreal";
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url("./fonts/PPNeueMontreal-Light.woff2") format("woff2");
}

:root {
  --bg: #ffffff;
  --ink: #0f1012;
  --ink-muted: #6b6b6b;
  --ink-faint: #9a9a9a;
  --line: rgba(15, 16, 18, 0.1);
  --nav-surface: hsl(0 0% 96% / 0.6);
  --color-blue: #0071e3;
  --color-blue-soft: rgba(0, 113, 227, 0.45);
  --brand-blue-light: #4ca3ff;
  --brand-blue: #0071e3;
  --font: "PP Neue Montreal", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC",
    "Microsoft YaHei UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --control-h: 4.4rem;
  --control-radius: 999px;
  --hero-blur: 0px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-family: var(--font);
  font-size: 16px;
  font-weight: 350;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  text-size-adjust: none;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

#problem,
#answer,
#architecture,
#practice {
  scroll-margin-top: 5rem;
}

#remains {
  scroll-margin-top: 0;
}

@media (max-width: 859px) {
  #problem,
  #answer,
  #architecture,
  #practice {
    scroll-margin-top: 4.25rem;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.2;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 1px dashed var(--color-blue);
  outline-offset: 3px;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

img {
  display: block;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 2000;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: #fff;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
}

/* ——— Chrome ——— */
.chrome {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.5rem;
  pointer-events: none;
}

.logo,
.chrome-nav,
.lang-switch {
  pointer-events: auto;
}

/* Logo — plain, no frosted glass */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.05rem;
  font-weight: 350;
  letter-spacing: -0.03em;
  color: var(--ink);
  transition: color 0.25s ease;
}

.logo img {
  width: 22px;
  height: 26px;
  object-fit: contain;
  transition: filter 0.25s ease;
}

/* White logo over black / blue bands */
.chrome[data-chrome="inverse"] .logo {
  color: #fff;
}

.chrome[data-chrome="inverse"] .logo img {
  filter: brightness(0) invert(1);
}

.chrome[data-chrome="inverse"] .chrome-nav {
  background: rgba(255, 255, 255, 0.14);
}

.chrome[data-chrome="inverse"] .chrome-nav a {
  color: rgba(242, 242, 244, 0.72);
}

.chrome[data-chrome="inverse"] .chrome-nav a:hover,
.chrome[data-chrome="inverse"] .chrome-nav a.is-active {
  color: #4ca3ff;
}

.chrome[data-chrome="inverse"] .chrome-nav a.is-active::after {
  background: #4ca3ff;
}

.chrome[data-chrome="inverse"] .lang-btn {
  color: rgba(242, 242, 244, 0.55);
}

.chrome[data-chrome="inverse"] .lang-btn:hover {
  color: #fff;
}

.chrome[data-chrome="inverse"] .lang-btn.is-active {
  color: #fff;
  font-weight: 500;
}

.chrome-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

/* Nav — frosted glass pill, centered in chrome */
.chrome-nav {
  display: none;
  align-items: center;
  gap: 0.15rem;
  height: 44px;
  padding: 4px 6px;
  border: 0;
  border-radius: var(--control-radius);
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(18px) saturate(1.1);
  -webkit-backdrop-filter: blur(18px) saturate(1.1);
}

.chrome-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 0.95rem 0.2rem;
  border-radius: var(--control-radius);
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 350;
  letter-spacing: 0.01em;
  transition: color 0.2s ease, font-weight 0.2s ease;
}

.chrome-nav a:hover {
  color: var(--ink);
}

.chrome-nav a.is-active {
  color: var(--color-blue);
  font-weight: 600;
}

.chrome-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0.95rem;
  right: 0.95rem;
  bottom: 0.28rem;
  height: 1.5px;
  background: var(--color-blue);
  border-radius: 1px;
}

/* Language — plain text, active = blue + slightly heavier */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  height: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.lang-btn {
  min-width: 0;
  height: auto;
  padding: 0.25rem 0.4rem;
  border-radius: 0;
  background: transparent;
  color: var(--ink-muted);
  font-size: 0.8rem;
  font-weight: 350;
  letter-spacing: -0.01em;
  transition: color 0.2s ease, font-weight 0.2s ease;
}

.lang-btn:hover {
  color: var(--ink);
}

.lang-btn.is-active {
  background: transparent;
  color: var(--color-blue);
  font-weight: 500;
}

@media (min-width: 860px) {
  .chrome-nav {
    display: flex;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: auto;
  }

  .chrome-menu-btn {
    display: none !important;
  }
}

@media (max-width: 859px) {
  .chrome {
    padding: 1rem 1.15rem;
  }
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65rem;
  height: 1.65rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-style: normal;
  font-size: 0.85rem;
  line-height: 1;
  opacity: 0.85;
}

/* ——— Fixed hero canvas ——— */
.hero-wrapper {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  filter: blur(var(--hero-blur));
  will-change: filter;
}

.landing-hero-animation {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.landing-hero-animation canvas {
  display: block;
  width: 100%;
  height: 100%;
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 80px, #000);
  mask-image: linear-gradient(180deg, transparent 0, #000 80px, #000);
}

/* ——— Shared hero stage (particle field behind both text blocks) ——— */
.hero-stage {
  position: relative;
  z-index: 10;
  background: transparent;
}

.hero-block {
  position: relative;
  z-index: 1;
  padding: 0 1.25rem;
  background: transparent;
}

@media (min-width: 768px) {
  .hero-block {
    padding: 0 6vw;
  }
}

.hero-block--lead,
.hero-block--intro {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
}

.hero-block--lead {
  pointer-events: none;
}

.hero-block--intro {
  padding-top: 0;
  padding-bottom: 0;
}

.hero-block-inner {
  max-width: 42rem;
}

.hero-block--lead .hero-block-inner {
  margin-left: clamp(0.25rem, 3vw, 2.5rem);
  max-width: min(100%, 54rem);
}

.hero-block-inner--ruled {
  max-width: 52rem;
  padding-left: 1.15rem;
  border-left: 1px solid rgba(15, 16, 18, 0.14);
}

.hero-headline {
  margin-bottom: 1.1rem;
  font-size: clamp(2.2rem, 5.5vw, 3.75rem);
  font-weight: 300;
  font-synthesis: none;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.hero-line {
  display: inline;
}

.hero-intro {
  display: none;
  margin-bottom: 0;
  max-width: 36rem;
  color: var(--ink-muted);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  letter-spacing: 0.01em;
  line-height: 1.45;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  pointer-events: auto;
}

.hero-ctas--lead {
  margin-top: 1.5rem;
}

/* Augen-style pills */
.minds-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  height: 2.75rem;
  padding: 0 1.25rem;
  border: 1px solid rgba(15, 16, 18, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 350;
  letter-spacing: -0.02em;
  color: var(--ink);
  cursor: default;
  user-select: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, opacity 0.3s ease;
}

.minds-cta:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.minds-cta__content {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  white-space: nowrap;
}

.minds-cta__content--primary {
  padding: 0;
}

.minds-cta:has(.minds-cta__content--primary),
.minds-cta.primary {
  border-color: var(--color-blue-soft);
  color: var(--color-blue);
  background: rgba(255, 255, 255, 0.4);
  font-weight: 500;
  font-synthesis: weight;
}

.minds-cta:has(.minds-cta__content--primary) .minds-cta__content,
.minds-cta.primary .minds-cta__content {
  font-weight: 500;
  font-synthesis: weight;
  -webkit-text-stroke: 0;
  paint-order: normal;
}

html[lang="zh-Hans"] .minds-cta:has(.minds-cta__content--primary),
html[lang="zh-Hans"] .minds-cta.primary,
html[lang="zh-Hans"] .minds-cta:has(.minds-cta__content--primary) .minds-cta__content,
html[lang="zh-Hans"] .minds-cta.primary .minds-cta__content {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei UI",
    sans-serif;
  font-weight: 400;
  letter-spacing: 0.04em;
  -webkit-text-stroke: 0;
  paint-order: normal;
}

.minds-cta:has(.minds-cta__content--primary):hover,
.minds-cta.primary:hover {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: #fff;
}

.minds-cta:has(.minds-cta__content--primary):hover .icon-circle,
.minds-cta.primary:hover .icon-circle {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.minds-cta__content--primary::after {
  display: none;
}

.minds-cta:hover .minds-cta__content:not(.minds-cta__content--primary) {
  box-shadow: none;
}

.intro-title {
  margin: 0 0 1.75rem;
  max-width: min(100%, 42rem);
  font-size: clamp(2.2rem, 5.5vw, 3.75rem);
  font-weight: 300;
  font-synthesis: none;
  letter-spacing: -0.01em;
  line-height: 1.05;
  color: var(--ink);
}

.intro-title span {
  display: block;
  font-weight: inherit;
}

@media (min-width: 834px) {
  .intro-title span {
    white-space: nowrap;
  }
}

html[lang="zh-Hans"] .intro-title {
  max-width: none;
  letter-spacing: 0.02em;
}

html[lang="zh-Hans"] .hero-headline {
  letter-spacing: 0.02em;
  line-height: 1.28;
  max-width: none;
}

@media (min-width: 768px) {
  html[lang="zh-Hans"] .hero-line--keep {
    white-space: nowrap;
  }
}

html[lang="zh-Hans"] .intro-title,
html[lang="zh-Hans"] .hero-headline,
html[lang="zh-Hans"] .augen-master-title,
html[lang="zh-Hans"] .pt-lede,
html[lang="zh-Hans"] .augen-answer-title {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei UI",
    sans-serif;
  font-weight: 300;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}

.hero-block--intro .hero-ctas {
  margin-bottom: 3.5rem;
}

.intro-meta {
  margin: 0;
  color: var(--ink-faint);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ——— Dark band · product timeline ——— */
.augen-dark {
  --augen-outer: 5.1282051282vw;
  --pt-muted: rgba(242, 242, 244, 0.48);
  --pt-dim: rgba(242, 242, 244, 0.22);
  --pt-line: rgba(242, 242, 244, 0.14);
  position: relative;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  min-height: 80dvh;
  height: auto;
  max-height: none;
  background: #1d1e20;
  color: #f2f2f4;
  padding: 5rem 0;
  box-sizing: border-box;
  /* Keep watermark + energy glow intact (clip was cropping CARYSCLOUD) */
  overflow: visible;
}

@media (min-width: 834px) {
  .augen-dark {
    --augen-outer: 4.7961630695vw;
    min-height: 80vh;
    min-height: 80dvh;
    padding: 5rem 0;
  }
}

.augen-dark-inner--timeline {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  width: 100%;
  margin-block: auto;
  padding: 0 var(--augen-outer);
  box-sizing: border-box;
}

.pt-head {
  width: 100%;
  max-width: 42rem;
  margin-inline: auto;
  text-align: center;
}

.pt-lede {
  display: none;
}

.pt-sub {
  max-width: 42rem;
  margin: 0 auto;
  color: #ffffff;
  font-size: 1.15rem;
  letter-spacing: 0.015em;
  line-height: 1.45;
  text-align: center;
  text-wrap: pretty;
  white-space: normal;
}

.pt-interact {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
  width: 100%;
  overflow: visible;
}

/* System enclosure — energy loop: CarysCloud → sides → timeline → back */
.pt-system {
  position: relative;
  width: min(100%, 1120px);
  margin: 1.6rem auto 0;
  padding: 2.35rem 0 0.85rem;
  border: none;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}

.pt-system__frame {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: visible;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.pt-system.is-wired .pt-system__frame {
  opacity: 1;
}

.pt-system__svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.pt-system__path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.pt-system__path--base {
  stroke: rgba(242, 242, 244, 0.16);
  stroke-width: 2;
}

.pt-system__path--soft,
.pt-system__path--trail,
.pt-system__path--mid,
.pt-system__path--run {
  opacity: 0;
}

.pt-system.is-wired .pt-system__path--soft,
.pt-system.is-wired .pt-system__path--trail,
.pt-system.is-wired .pt-system__path--mid,
.pt-system.is-wired .pt-system__path--run {
  opacity: 1;
}

/* Soft layered charge: blue bloom → mid blue → bright tip */
.pt-system__path--soft {
  stroke: rgba(0, 113, 227, 0.28);
  stroke-width: 5;
  stroke-dasharray: 220 780;
}

.pt-system__path--trail {
  stroke: rgba(50, 140, 245, 0.7);
  stroke-width: 2.5;
  stroke-dasharray: 140 860;
}

.pt-system__path--mid {
  stroke: rgba(140, 200, 255, 0.88);
  stroke-width: 2.15;
  stroke-dasharray: 72 928;
}

.pt-system__path--run {
  stroke: rgba(235, 246, 255, 0.95);
  stroke-width: 2;
  stroke-dasharray: 28 972;
}

.pt-system.is-wired .pt-track__charge {
  display: none;
}

.pt-system__brand {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 5;
  margin: 0;
  padding: 0 0.55rem;
  transform: translate(-50%, -50%);
  color: #4ca3ff;
  line-height: 0;
  pointer-events: none;
}

.pt-system__brand-mark {
  display: block;
  height: clamp(1.05rem, 2.35vw, 1.4rem);
  width: auto;
  aspect-ratio: 1920 / 230.5;
  overflow: visible;
}

.pt-system .pt-stage {
  position: relative;
  z-index: auto;
  width: 100%;
}

.pt-system .pt-shell {
  width: 100%;
  max-width: none;
}

.pt-stage {
  position: relative;
  display: flex;
  justify-content: center;
  width: 100%;
  overflow: visible;
  container-type: inline-size;
  container-name: pt-stage;
}

.pt-shell {
  position: relative;
  z-index: auto;
  width: min(100%, 1120px);
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
  padding: 2.35rem 0.5rem 1.25rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.pt-watermark {
  --wm-x: 50%;
  --wm-y: 50%;
  --wm-on: 0;
  --wm-hole: 0px;
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 0;
  /* Restore original scale — large wordmark behind the timeline */
  width: min(118cqi, calc(100vw - 1rem));
  aspect-ratio: 1920 / 230.5;
  margin: 0;
  transform: translate(-50%, -50%);
  pointer-events: none;
  user-select: none;
  overflow: visible;
  color: #252628;
}

.pt-watermark__layer {
  position: absolute;
  inset: 0;
  display: block;
  overflow: visible;
}

.pt-watermark__layer svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.pt-watermark__layer svg path,
.pt-watermark__layer svg polygon {
  fill: currentColor;
}

.pt-watermark__layer--base {
  color: #252628;
  opacity: 1;
  filter: none;
}

.pt-watermark.is-hot .pt-watermark__layer--base {
  /* Punch a soft hole under the cursor so blur isn't fighting sharp edges */
  -webkit-mask-image: radial-gradient(
    circle var(--wm-hole) at var(--wm-x) var(--wm-y),
    transparent 0%,
    transparent 32%,
    rgba(0, 0, 0, 0.55) 62%,
    #000 100%
  );
  mask-image: radial-gradient(
    circle var(--wm-hole) at var(--wm-x) var(--wm-y),
    transparent 0%,
    transparent 32%,
    rgba(0, 0, 0, 0.55) 62%,
    #000 100%
  );
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

.pt-watermark__layer--spot {
  /* Expand past the wordmark box so blur fades out — no hard rectangular edge */
  inset: -3.5rem;
  color: #55585f;
  filter: blur(22px);
  opacity: 0;
  transform: scale(1.04);
  transform-origin: center;
  transition: opacity 0.2s ease;
  -webkit-mask-image: none;
  mask-image: none;
}

.pt-watermark.is-hot .pt-watermark__layer--spot {
  opacity: 1;
  -webkit-mask-image: radial-gradient(
    circle calc(var(--wm-hole) * 1.08) at var(--wm-x) var(--wm-y),
    #000 0%,
    #000 36%,
    rgba(0, 0, 0, 0.55) 64%,
    transparent 100%
  );
  mask-image: radial-gradient(
    circle calc(var(--wm-hole) * 1.08) at var(--wm-x) var(--wm-y),
    #000 0%,
    #000 36%,
    rgba(0, 0, 0, 0.55) 64%,
    transparent 100%
  );
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

.pt-timeline {
  --nodes: 4;
  --pt-dot-size: 14px;
  --pt-label-space: 3.6rem;
  --pt-axis-y: calc(var(--pt-label-space) + (var(--pt-dot-size) / 2));
  position: relative;
  z-index: auto;
  display: grid;
  grid-template-columns: repeat(var(--nodes), minmax(9.5rem, 1fr));
  align-items: start;
  column-gap: 0.5rem;
  min-width: 760px;
  width: 100%;
  margin: 0 auto;
  padding-top: 0;
}

.pt-track {
  position: absolute;
  left: calc(100% / var(--nodes) / 2);
  right: calc(100% / var(--nodes) / 2);
  top: calc(var(--pt-axis-y) - 1px);
  height: 2px;
  pointer-events: none;
  overflow: visible;
  z-index: 0;
}

.pt-track__base {
  position: absolute;
  inset: 0;
  background: var(--pt-line);
  transition: opacity 0.25s ease;
}

.pt-track__charge {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pt-lit, 33.333%);
  right: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.pt-track__charge::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 42%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(
    90deg,
    rgba(0, 113, 227, 0.05),
    rgba(77, 163, 255, 0.85),
    rgba(255, 255, 255, 0.55),
    transparent
  );
  box-shadow: 0 0 10px rgba(0, 113, 227, 0.45);
  transform: translate(-30%, -50%);
  opacity: 0;
}

.pt-track__lit {
  --pt-lit-core: 0%;
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  z-index: 1;
  background: linear-gradient(
    90deg,
    #005bb8 0%,
    #0071e3 max(var(--pt-lit-core), 8%),
    #4da3ff calc(var(--pt-lit-core) + 18%),
    rgba(0, 113, 227, 0.42) 58%,
    rgba(0, 113, 227, 0.14) 78%,
    rgba(242, 242, 244, 0.14) 92%,
    transparent 100%
  );
  box-shadow: none;
  transform-origin: left center;
}

.pt-track__lit::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: max(var(--pt-lit-core), 12%);
  height: 2px;
  border-radius: 2px;
  transform: translateY(-50%);
  background: linear-gradient(
    90deg,
    rgba(0, 113, 227, 0.55),
    rgba(90, 173, 255, 0.2),
    transparent
  );
  box-shadow: 0 0 12px rgba(0, 113, 227, 0.45);
  pointer-events: none;
}

.pt-track__lit::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.22) 35%,
    transparent 70%
  );
  background-size: 40% 100%;
  opacity: 0;
  mask-image: linear-gradient(90deg, #000 0%, #000 45%, transparent 78%);
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 45%, transparent 78%);
}

.pt-track__tip {
  display: none;
}

.pt-timeline.is-ready .pt-track__lit {
  transition: width 1.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.pt-timeline.is-lit {
  --pt-charging: 1;
}

.pt-timeline.is-lit .pt-track__lit::after {
  opacity: 1;
  animation: pt-lit-shimmer 2.2s linear infinite;
}

.pt-timeline.is-lit .pt-track__charge {
  opacity: 1;
}

.pt-timeline.is-lit .pt-track__charge::before {
  animation: pt-charge 1.75s ease-in-out infinite;
}

.pt-seg {
  position: relative;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  padding: 0 0.25rem;
}

.pt-seg::before {
  content: "";
  position: absolute;
  left: 50%;
  top: calc(var(--pt-axis-y) - 2.8rem);
  width: min(100%, 11rem);
  height: 7.5rem;
  border-radius: 50%;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 113, 227, 0.38) 0%,
    rgba(0, 113, 227, 0.12) 42%,
    transparent 72%
  );
  filter: blur(22px);
  opacity: 0;
  transform: translateX(-50%) scale(0.85);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
  z-index: 0;
}

.pt-seg:hover::before,
.pt-seg.is-active::before,
.pt-seg:has(.pt-child:hover)::before,
.pt-seg:has(.pt-child.is-active)::before {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

.pt-seg__main {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
  text-align: center;
  padding: var(--pt-label-space) 0 0;
}

.pt-seg__dot {
  position: relative;
  z-index: 3;
  width: var(--pt-dot-size);
  height: var(--pt-dot-size);
  border-radius: 50%;
  border: 1.5px solid var(--pt-dim);
  background: #16171a;
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease,
    transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.pt-seg__ring {
  display: none;
}

.pt-seg__meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  min-height: 2.6rem;
  transform-origin: center top;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), filter 0.3s ease;
}

/* Live labels stay under the axis */
.pt-seg.is-live .pt-seg__meta {
  order: 2;
  transform-origin: center top;
}

/* CarysFrame / Cores + Coming Soon sit above the axis */
.pt-seg.is-soon .pt-seg__main {
  gap: 0;
}

.pt-seg.is-soon .pt-seg__meta {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  transform-origin: center bottom;
  width: max-content;
  max-width: 12.5rem;
  min-height: 0;
  padding-bottom: 0.35rem;
}

.pt-seg__name {
  font-size: 0.92rem;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--pt-muted);
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

.pt-seg__badge {
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--pt-dim);
  text-transform: uppercase;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

.pt-seg.is-live .pt-seg__dot {
  border-color: #0071e3;
  background: #0071e3;
}

.pt-seg.is-live.is-on .pt-seg__dot {
  width: calc(var(--pt-dot-size) + 2px);
  height: calc(var(--pt-dot-size) + 2px);
  border: 1.5px solid #3d96f5;
  background: #0071e3;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  /* Knock out the track under the node, then soft blue falloff */
  box-shadow:
    0 0 0 3px #1d1e20,
    0 0 0 5px rgba(0, 113, 227, 0.18),
    0 0 12px 3px rgba(0, 113, 227, 0.42),
    0 0 26px 8px rgba(0, 113, 227, 0.22);
  animation: pt-breathe 2.4s ease-in-out infinite;
}

.pt-seg.is-live.is-on .pt-seg__dot::after {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(77, 163, 255, 0.38) 0%,
    rgba(0, 113, 227, 0.18) 34%,
    rgba(0, 113, 227, 0.07) 58%,
    rgba(0, 113, 227, 0.02) 74%,
    transparent 88%
  );
  filter: blur(8px);
  pointer-events: none;
  animation: pt-halo 2.4s ease-in-out infinite;
  z-index: -1;
}

.pt-seg.is-live.is-on.is-energy .pt-seg__dot {
  border-color: #5eb0ff;
  background: #1a82f0;
  box-shadow:
    0 0 0 3px #1d1e20,
    0 0 0 5px rgba(77, 163, 255, 0.28),
    0 0 14px 4px rgba(77, 163, 255, 0.5),
    0 0 28px 9px rgba(0, 113, 227, 0.3);
  transform: scale(1.1);
  animation: none;
}

.pt-seg.is-live.is-on.is-energy .pt-seg__dot::after {
  opacity: 1;
  background: radial-gradient(
    circle,
    rgba(150, 205, 255, 0.42) 0%,
    rgba(77, 163, 255, 0.2) 36%,
    rgba(0, 113, 227, 0.06) 62%,
    transparent 84%
  );
  animation: none;
}

.pt-seg.is-live.is-on .pt-seg__name {
  color: #ffffff;
  font-size: 1.2rem;
  font-weight: 700;
  font-synthesis: weight;
  letter-spacing: 0.08em;
  text-shadow:
    0 0 16px rgba(0, 113, 227, 0.55),
    0 0 2px rgba(255, 255, 255, 0.4);
}

.pt-seg.is-live.is-on.is-energy .pt-seg__name {
  color: #ffffff;
  text-shadow:
    0 0 8px rgba(255, 255, 255, 0.75),
    0 0 18px rgba(120, 190, 255, 0.95),
    0 0 32px rgba(0, 113, 227, 0.75);
}

.pt-seg.is-live.is-on .pt-seg__badge {
  color: #4ca3ff;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.pt-seg.is-live.is-on.is-energy .pt-seg__badge {
  color: #9fd0ff;
  text-shadow: 0 0 12px rgba(77, 163, 255, 0.65);
}

.pt-seg.is-live.is-flash .pt-seg__dot {
  animation: none;
  transform: scale(1.35);
  background: #3d9eff;
  border-color: #7ec4ff;
  box-shadow:
    0 0 0 1px rgba(180, 220, 255, 0.55),
    0 0 20px 4px rgba(0, 113, 227, 0.85),
    0 0 44px 12px rgba(0, 113, 227, 0.6),
    0 0 78px 22px rgba(77, 163, 255, 0.4);
}

.pt-seg.is-soon.is-on .pt-seg__dot {
  border-color: rgba(242, 242, 244, 0.5);
  background: #1a1b1e;
}

.pt-seg.is-soon .pt-seg__name {
  color: rgba(255, 255, 255, 0.88);
  font-weight: 500;
  font-synthesis: weight;
}

.pt-seg.is-soon .pt-seg__badge {
  color: rgba(255, 255, 255, 0.48);
}

.pt-seg.is-active .pt-seg__dot,
.pt-seg:hover .pt-seg__dot,
.pt-seg:has(.pt-child:hover) .pt-seg__dot,
.pt-seg:has(.pt-child.is-active) .pt-seg__dot,
.pt-seg__main:focus-visible .pt-seg__dot {
  transform: scale(1.42);
}

.pt-seg.is-live.is-on.is-active .pt-seg__dot,
.pt-seg.is-live.is-on:hover .pt-seg__dot,
.pt-seg.is-live.is-on:has(.pt-child:hover) .pt-seg__dot,
.pt-seg.is-live.is-on .pt-seg__main:focus-visible .pt-seg__dot {
  animation: none;
  background: #0071e3;
  border-color: #4da3ff;
  box-shadow:
    0 0 0 1px rgba(180, 220, 255, 0.55),
    0 0 18px 4px rgba(0, 113, 227, 0.8),
    0 0 40px 10px rgba(0, 113, 227, 0.55),
    0 0 72px 20px rgba(77, 163, 255, 0.35);
}

.pt-seg.is-live.is-on.is-energy.is-active .pt-seg__dot,
.pt-seg.is-live.is-on.is-energy:hover .pt-seg__dot {
  background: #3d9eff;
  border-color: #7ec4ff;
}

.pt-seg.is-live.is-active .pt-seg__dot,
.pt-seg.is-live .pt-seg__main:hover .pt-seg__dot {
  box-shadow:
    0 0 0 7px rgba(0, 113, 227, 0.28),
    0 0 26px rgba(0, 113, 227, 0.7);
}

.pt-seg.is-active .pt-seg__name,
.pt-seg:hover .pt-seg__name,
.pt-seg__main:hover .pt-seg__name,
.pt-seg:has(.pt-child:hover) .pt-seg__name,
.pt-seg:has(.pt-child.is-active) .pt-seg__name {
  color: #fff;
  text-shadow:
    0 0 12px rgba(0, 113, 227, 0.75),
    0 0 28px rgba(77, 163, 255, 0.45);
}

.pt-seg.is-active .pt-seg__badge,
.pt-seg:hover .pt-seg__badge,
.pt-seg__main:hover .pt-seg__badge,
.pt-seg:has(.pt-child:hover) .pt-seg__badge,
.pt-seg:has(.pt-child.is-active) .pt-seg__badge {
  text-shadow: 0 0 10px rgba(0, 113, 227, 0.55);
}

.pt-seg.is-live.is-active .pt-seg__badge,
.pt-seg.is-live:hover .pt-seg__badge {
  color: #4da3ff;
}

.pt-seg.is-active .pt-seg__meta,
.pt-seg:hover .pt-seg__meta,
.pt-seg:has(.pt-child:hover) .pt-seg__meta,
.pt-seg:has(.pt-child.is-active) .pt-seg__meta {
  transform: scale(1.1);
}

.pt-seg.is-soon.is-active .pt-seg__meta,
.pt-seg.is-soon:hover .pt-seg__meta,
.pt-seg.is-soon:has(.pt-child:hover) .pt-seg__meta,
.pt-seg.is-soon:has(.pt-child.is-active) .pt-seg__meta {
  transform: translateX(-50%) scale(1.1);
}

.pt-seg__main:focus-visible {
  outline: none;
}

/* Group children */
.pt-seg__kids {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem 0.65rem;
  max-width: 13rem;
  margin-top: 0.35rem;
  padding-top: 0;
  border-top: 0;
}

.pt-child {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.35rem;
  border: 0;
  border-radius: 0.35rem;
  background: transparent;
  color: rgba(255, 255, 255, 0.62);
  font: inherit;
  font-size: 0.72rem;
  letter-spacing: -0.02em;
  cursor: pointer;
  transition: color 0.25s ease, background 0.25s ease;
}

.pt-child__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.pt-child.is-on .pt-child__dot {
  border-color: rgba(255, 255, 255, 0.55);
}

.pt-child.is-sib {
  color: rgba(255, 255, 255, 0.78);
}

.pt-child.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.pt-child.is-active .pt-child__dot {
  border-color: #0071e3;
  background: #0071e3;
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.22);
}

.pt-child:hover {
  color: rgba(242, 242, 244, 0.85);
}

.pt-seg.is-ripple .pt-child {
  animation: pt-ripple 0.65s ease;
}

.pt-seg.is-ripple .pt-child:nth-child(2) {
  animation-delay: 0.08s;
}

.pt-seg.is-ripple .pt-child:nth-child(3) {
  animation-delay: 0.16s;
}

.pt-seg.is-group-hot .pt-seg__name {
  color: rgba(255, 255, 255, 0.92);
}

@keyframes pt-breathe {
  0%,
  100% {
    box-shadow:
      0 0 0 1px rgba(77, 163, 255, 0.32),
      0 0 14px 3px rgba(0, 113, 227, 0.65),
      0 0 32px 8px rgba(0, 113, 227, 0.45),
      0 0 56px 14px rgba(77, 163, 255, 0.3),
      0 0 80px 22px rgba(0, 113, 227, 0.18),
      inset 0 0 12px rgba(180, 220, 255, 0.22);
  }
  50% {
    box-shadow:
      0 0 0 1px rgba(180, 220, 255, 0.5),
      0 0 22px 5px rgba(0, 113, 227, 0.85),
      0 0 46px 12px rgba(0, 113, 227, 0.6),
      0 0 78px 22px rgba(77, 163, 255, 0.42),
      0 0 110px 30px rgba(0, 113, 227, 0.28),
      inset 0 0 14px rgba(180, 220, 255, 0.32);
  }
}

@keyframes pt-halo {
  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.18);
  }
}

@keyframes pt-tip-pulse {
  0%,
  100% {
    transform: translateY(-50%) scale(1);
    box-shadow:
      0 0 0 3px rgba(0, 113, 227, 0.3),
      0 0 14px rgba(0, 113, 227, 0.75);
  }
  50% {
    transform: translateY(-50%) scale(1.28);
    box-shadow:
      0 0 0 6px rgba(0, 113, 227, 0.22),
      0 0 26px rgba(77, 163, 255, 0.95);
  }
}

@keyframes pt-lit-shimmer {
  0% {
    background-position: -40% 0;
  }
  100% {
    background-position: 140% 0;
  }
}

@keyframes pt-charge {
  0% {
    transform: translate(-20%, -50%);
    opacity: 0;
  }
  18% {
    opacity: 1;
  }
  70% {
    opacity: 0.85;
  }
  100% {
    transform: translate(160%, -50%);
    opacity: 0;
  }
}

/* Legacy unused — energy loop is JS-driven */
@keyframes pt-sys-charge {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -1000;
  }
}

@keyframes pt-ripple {
  0% {
    transform: translateY(0);
    opacity: 0.45;
  }
  40% {
    transform: translateY(-3px);
    opacity: 1;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

.pt-detail {
  position: absolute;
  left: 50%;
  top: calc(100% + 0.15rem);
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  align-items: baseline;
  justify-content: center;
  gap: 0.45rem 0.85rem;
  width: min(100%, 40rem);
  height: 5.75rem;
  min-height: 5.75rem;
  max-height: 5.75rem;
  max-width: 40rem;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  filter: blur(14px);
  transform: translateX(-50%) translateY(8px);
  transition:
    opacity 0.28s ease,
    visibility 0.28s ease,
    filter 0.32s ease,
    transform 0.28s ease;
  pointer-events: none;
  overflow: hidden;
}

.pt-detail.is-visible {
  opacity: 1;
  visibility: visible;
  filter: blur(0);
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
  transition:
    opacity 0.45s ease,
    visibility 0.45s ease,
    filter 0.55s ease,
    transform 0.45s ease;
}

.pt-detail.is-leaving {
  opacity: 0;
  visibility: hidden;
  filter: blur(12px);
  transform: translateX(-50%) translateY(6px);
  transition:
    opacity 0.22s ease,
    visibility 0.22s ease,
    filter 0.22s ease,
    transform 0.22s ease;
}

.pt-detail__status {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #0071e3;
}

.pt-detail.is-soon .pt-detail__status {
  color: var(--pt-muted);
}

.pt-detail__name {
  font-size: 1.15rem;
  font-weight: 350;
  letter-spacing: -0.03em;
}

.pt-detail__copy {
  flex-basis: 100%;
  color: var(--pt-muted);
  font-size: 0.92rem;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .pt-seg.is-live.is-on .pt-seg__dot,
  .pt-track__charge::before,
  .pt-timeline.is-lit .pt-track__lit::after,
  .pt-seg.is-ripple .pt-child {
    animation: none;
  }

  .pt-system.is-wired .pt-system__path--soft,
  .pt-system.is-wired .pt-system__path--trail,
  .pt-system.is-wired .pt-system__path--mid,
  .pt-system.is-wired .pt-system__path--run {
    opacity: 0.4;
    stroke-dasharray: none;
  }

  .pt-detail {
    filter: none;
    transform: translateX(-50%);
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }

  .pt-detail.is-visible {
    transform: translateX(-50%);
  }

  .pt-detail.is-leaving {
    filter: none;
    transform: translateX(-50%);
  }

  .pt-watermark__layer--spot {
    display: none;
  }

  .pt-watermark.is-hot .pt-watermark__layer--base {
    -webkit-mask-image: none;
    mask-image: none;
  }

  .pt-timeline.is-ready .pt-track__lit {
    transition: none;
  }

  .augen-item-line,
  .augen-about-line {
    transition: none !important;
  }
}

/* ——— Shared Augen tokens / links / pills ——— */
.augen-section-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: #0f1012;
}

.augen-section-head__label {
  font-size: 16px;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

@media (min-width: 834px) {
  .augen-section-head__label {
    font-size: 14px;
  }
}

@media (min-width: 1440px) {
  .augen-section-head__label {
    font-size: 16px;
  }
}

.augen-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 7.5rem;
  height: 2.4rem;
  padding: 0 1.1rem;
  border: 1px solid #0071e3;
  border-radius: 999px;
  color: #0071e3;
  font-size: 14px;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.augen-pill:hover {
  background: #0071e3;
  color: #fff;
}

.augen-pill--filled {
  background: #0071e3;
  color: #fff;
}

.augen-pill--filled:hover {
  background: #005bb8;
  border-color: #005bb8;
}

.augen-arrow-link {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 2.1rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: #0071e3;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
  cursor: pointer;
  text-align: left;
}

.augen-arrow-link:hover {
  color: #4ca3ff;
}

.augen-arrow-link__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 1.35rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  flex-shrink: 0;
}

.augen-arrow-link--light {
  color: #f2f2f4;
}

.augen-arrow-link--down {
  margin-top: 2.1rem;
}

.augen-arrow-link--down .augen-arrow-link__icon {
  width: 1.35rem;
  height: 2.2rem;
}

.augen-arrow-link--down .augen-arrow-link__icon svg {
  transform: rotate(90deg);
}

/* Architecture detail modal */
body.is-arch-modal-open {
  overflow: hidden;
}

.arch-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s var(--ease), visibility 0.28s var(--ease);
}

.arch-modal[hidden] {
  display: none !important;
}

.arch-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.arch-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 9, 11, 0.72);
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  cursor: pointer;
}

.arch-modal__panel {
  position: relative;
  z-index: 1;
  width: min(100%, 58rem);
  max-height: min(90dvh, 46rem);
  overflow: auto;
  padding: 1.35rem 1.35rem 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1.25rem;
  background: rgba(18, 19, 22, 0.92);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  color: #f2f2f4;
  transform: translateY(12px) scale(0.985);
  transition: transform 0.3s var(--ease);
  -webkit-overflow-scrolling: touch;
}

.arch-modal.is-open .arch-modal__panel {
  transform: none;
}

.arch-modal__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.arch-modal__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: #fff;
}

.arch-modal__close {
  appearance: none;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.arch-modal__close:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

.arch-modal .pyramid-viz {
  margin-top: 0.25rem;
}

@media (max-width: 833px) {
  .arch-modal__panel {
    width: 100%;
    max-height: min(92dvh, 100%);
    padding: 1.1rem 1rem 1.35rem;
  }

  .arch-modal .pyramid-viz {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .arch-modal .pyramid-stage {
    min-height: 15rem;
  }

  .arch-modal .pyramid-legend {
    min-height: 0;
  }
}

/* ——— Answer · Invisible Approach (no image) ——— */
.augen-answer {
  --augen-gutter: 2.5641025641vw;
  --augen-outer: 5.1282051282vw;
  position: relative;
  z-index: 20;
  background: #f2f2f4;
  color: #0f1012;
}

.augen-answer-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  min-height: 80vh;
  min-height: 80dvh;
  padding: 5rem var(--augen-outer) 4.5rem;
  box-sizing: border-box;
}

@media (min-width: 834px) {
  .augen-answer {
    --augen-gutter: 2.3980815348vw;
    --augen-outer: 4.7961630695vw;
  }

  .augen-answer-inner {
    gap: 3.5rem;
    min-height: 80vh;
    min-height: 80dvh;
    padding: 5rem var(--augen-outer);
  }
}

.augen-answer .augen-section-head {
  width: 100%;
}

.augen-answer-title-wrap {
  display: flex;
  justify-content: center;
  width: 100%;
  margin: 0;
  text-align: center;
}

.augen-answer-title {
  max-width: none;
  margin: 0;
  color: #0071e3;
  font-size: clamp(2.75rem, 7.5vw, 8.5vw);
  font-weight: 300;
  letter-spacing: 0.008em;
  line-height: 1.05;
  text-align: center;
}

.augen-answer-title span {
  display: block;
  text-align: center;
}

@media (min-width: 834px) {
  .augen-answer-title span {
    white-space: nowrap;
  }
}

@media (min-width: 834px) {
  .augen-answer-title {
    font-size: clamp(3.5rem, 6.5vw, 7.2vw);
    line-height: 1.08;
  }
}

.augen-answer-foot {
  display: flex;
  justify-content: center;
  width: 100%;
  margin: 0;
}

.augen-answer-copy {
  text-align: center;
  max-width: 36rem;
}

@media (min-width: 834px) {
  .augen-answer-copy {
    max-width: 40rem;
  }
}

.augen-answer-copy p {
  max-width: none;
  margin: 0 auto;
  font-size: 18px;
  font-weight: 350;
  letter-spacing: 0.005em;
  line-height: 1.25;
}

@media (min-width: 834px) {
  .augen-answer-copy p {
    font-size: 16px;
  }
}

@media (min-width: 1440px) {
  .augen-answer-copy p {
    font-size: 18px;
  }
}

.augen-answer-copy span:first-of-type {
  display: block;
  opacity: 0.5;
}

.augen-answer-copy__emph {
  display: block;
  margin-top: 1.25rem;
  color: #0f1012;
  opacity: 1;
}

/* ——— Architecture + Practice · Augen Progress / Aim ——— */
.augen-about {
  --augen-gutter: 2.5641025641vw;
  --augen-outer: 5.1282051282vw;
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  min-height: 80vh;
  min-height: 80dvh;
  background: #0f1012;
  color: #f2f2f4;
  padding: 6.5rem 0 6rem;
  box-sizing: border-box;
}

@media (min-width: 834px) {
  .augen-about {
    --augen-gutter: 2.3980815348vw;
    --augen-outer: 4.7961630695vw;
    min-height: 80vh;
    min-height: 80dvh;
    padding: 6rem 0 5.5rem;
  }
}

.augen-about-inner {
  display: flex;
  flex-direction: column;
  width: min(100% - 2 * var(--augen-outer), 58rem);
  margin: 0 auto;
  padding: 0;
  box-sizing: border-box;
}

.augen-about-item {
  display: grid;
  grid-template-columns: 1fr;
  column-gap: var(--augen-gutter);
  row-gap: 2.5rem;
}

.augen-about-item + .augen-about-item {
  padding-top: 8vw;
}

@media (min-width: 834px) {
  .augen-about-item {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr);
    row-gap: 2.2vw;
    align-items: start;
  }

  .augen-about-item + .augen-about-item {
    padding-top: 4.3vw;
  }

  .augen-about-item--arch {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr);
  }

  .augen-about-item--arch .pyramid-viz,
  .augen-about-item--arch .augen-about-line {
    grid-column: 1 / -1;
  }
}

/* ——— Frosted glass discs (architecture layers) ——— */
.pyramid-viz {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  margin-top: 0.75rem;
}

@media (min-width: 834px) {
  .pyramid-viz {
    grid-column: 1 / -1;
    grid-template-columns: minmax(16rem, 1.1fr) minmax(0, 1fr);
    gap: 1.5rem 2.75rem;
    margin-top: 1.5rem;
  }
}

.pyramid-stage {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 20rem;
  isolation: isolate;
}

.pyramid-ambient {
  position: absolute;
  inset: 4% 6% 8%;
  z-index: 0;
  background:
    radial-gradient(circle at 30% 28%, rgba(76, 163, 255, 0.26), transparent 55%),
    radial-gradient(circle at 70% 70%, rgba(0, 113, 227, 0.2), transparent 50%);
  filter: blur(22px);
  pointer-events: none;
}

.pyramid {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  width: min(100%, 22rem);
  animation: pyramid-float 8s ease-in-out infinite;
}

@keyframes pyramid-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .pyramid {
    animation: none;
  }
}

.pyramid-layer {
  --w: calc(10.5rem + var(--i) * 2.15rem);
  --h: calc(2.55rem + var(--i) * 0.18rem);
  position: relative;
  width: var(--w);
  height: var(--h);
  margin: 0;
  padding: 0 1rem;
  border: 1px solid #0071e3;
  border-radius: 999px;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  transition:
    transform 0.3s var(--ease),
    background 0.3s var(--ease),
    border-color 0.3s var(--ease),
    opacity 0.3s var(--ease);
}

.pyramid-layer::before {
  display: none;
}

.pyramid-layer__name {
  position: relative;
  z-index: 1;
  max-width: 100%;
  color: #0071e3;
  font-size: clamp(0.72rem, 1.5vw, 0.86rem);
  font-weight: 350;
  letter-spacing: 0.03em;
  line-height: 1.1;
  text-align: center;
  text-shadow: none;
  white-space: nowrap;
  overflow: visible;
}

.pyramid-layer:hover,
.pyramid-layer.is-active {
  transform: translateY(-3px);
  z-index: 2;
  border-color: #4ca3ff;
  background: rgba(0, 113, 227, 0.12);
  box-shadow: none;
}

.pyramid-layer:hover .pyramid-layer__name,
.pyramid-layer.is-active .pyramid-layer__name {
  color: #4ca3ff;
}

.pyramid.is-hovering .pyramid-layer:not(:hover):not(.is-active) {
  opacity: 0.45;
}

.pyramid-legend {
  margin: 0;
  padding: 0.25rem 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.85rem;
  min-height: 17rem;
}

.pyramid-legend__item {
  position: relative;
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: 0.65rem;
  align-items: start;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.pyramid-legend__item.is-active,
.pyramid-legend__item:hover {
  opacity: 1;
  transform: translateX(2px);
}

.pyramid-legend__rail {
  position: relative;
  display: block;
  height: 1.15rem;
  margin-top: 0.35rem;
  border-top: 1px dotted rgba(0, 113, 227, 0.55);
}

.pyramid-legend__rail::after {
  content: "";
  position: absolute;
  top: -3.5px;
  right: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1px solid #0071e3;
  background: transparent;
  box-shadow: none;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.pyramid-legend__item.is-active .pyramid-legend__rail::after,
.pyramid-legend__item:hover .pyramid-legend__rail::after {
  background: #0071e3;
  border-color: #0071e3;
  transform: scale(1.1);
}

.pyramid-legend__copy strong {
  display: block;
  margin: 0 0 0.2rem;
  color: #0071e3;
  font-size: 0.95rem;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.pyramid-legend__item.is-active .pyramid-legend__copy strong {
  color: #0071e3;
}

.pyramid-legend__copy p {
  margin: 0;
  color: rgba(242, 242, 244, 0.58);
  font-size: 0.82rem;
  line-height: 1.4;
  letter-spacing: -0.015em;
  opacity: 1;
}

.augen-about-label {
  grid-column: 1 / -1;
  margin: 0;
  font-size: 16px;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

@media (min-width: 834px) {
  .augen-about-label {
    font-size: 12px;
  }
}

@media (min-width: 1440px) {
  .augen-about-label {
    font-size: 14px;
  }
}

.augen-about-head {
  grid-column: 1 / -1;
}

@media (min-width: 834px) {
  .augen-about-head {
    grid-column: auto;
  }
}

.augen-about-subtitle {
  margin: 0;
  max-width: 19rem;
  font-size: 25px;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

@media (min-width: 1440px) {
  .augen-about-subtitle {
    font-size: 27px;
  }
}

.augen-about-copy {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  row-gap: 1.25rem;
  max-width: 28rem;
  font-size: 16px;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

@media (min-width: 834px) {
  .augen-about-copy {
    grid-column: auto;
    max-width: none;
    font-size: 14px;
  }
}

@media (min-width: 1440px) {
  .augen-about-copy {
    font-size: 16px;
  }
}

.augen-about-copy p {
  margin: 0;
  opacity: 0.5;
}

#architecture .augen-about-copy p {
  opacity: 0.85;
}

#practice .augen-about-copy p {
  color: rgba(242, 242, 244, 0.58);
  opacity: 1;
}

.augen-about-copy h3 {
  margin: 0;
  font-size: inherit;
  font-weight: 350;
  opacity: 1;
}

.augen-about-copy strong {
  font-weight: 350;
  color: #f2f2f4;
  opacity: 1;
}

.augen-about-note {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  row-gap: 1.25rem;
  max-width: 22rem;
  margin: 0;
  font-size: 16px;
  font-weight: 350;
  letter-spacing: -0.02em;
  line-height: 1.2;
  opacity: 0.4;
}

.augen-about-note span {
  display: block;
}

@media (min-width: 834px) {
  .augen-about-note {
    grid-column: 4 / 5;
    max-width: 17rem;
    font-size: 12px;
  }
}

@media (min-width: 1440px) {
  .augen-about-note {
    font-size: 14px;
  }
}

.augen-about-line {
  grid-column: 1 / -1;
  height: 0.5px;
  background: rgba(255, 255, 255, 0.1);
  transform-origin: left center;
}

@media (min-width: 834px) {
  .augen-about-line {
    margin-top: 2.5vw;
  }
}

/* ——— What Remains · blue CTA band ——— */
.augen-master {
  --augen-outer: 5.1282051282vw;
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  min-height: 80dvh;
  background: #0071e3;
  color: #fff;
  padding: 5.5rem var(--augen-outer);
  box-sizing: border-box;
}

@media (min-width: 834px) {
  .augen-master {
    --augen-outer: 4.7961630695vw;
    min-height: 80vh;
    min-height: 80dvh;
    padding: 5rem var(--augen-outer);
  }
}

.augen-master-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  box-sizing: border-box;
}

.augen-master-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: min(100%, 52rem);
  text-align: center;
}

.augen-master-title {
  margin: 0;
  width: 100%;
  max-width: min(100%, 52rem);
  font-size: clamp(1.45rem, 4.8vw, 3.4rem);
  font-weight: 350;
  letter-spacing: -0.012em;
  line-height: 1.28;
  text-align: center;
}

.augen-master-title span {
  display: block;
  white-space: nowrap;
}

.augen-master-title span:empty {
  display: none;
}

.augen-master-title span + span {
  margin-top: 0.12em;
}

.augen-master-lede {
  max-width: 34rem;
  margin: 1.75rem 0 0;
  font-size: 16px;
  font-weight: 350;
  letter-spacing: 0.01em;
  line-height: 1.35;
  color: rgba(255, 255, 255, 0.72);
}

@media (min-width: 834px) {
  .augen-master-lede {
    font-size: 14px;
  }
}

@media (min-width: 1440px) {
  .augen-master-lede {
    font-size: 16px;
  }
}

.augen-master-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 2.4rem;
  height: 2.4rem;
  padding: 0 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 999px;
  background: transparent;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  font-synthesis: weight;
  letter-spacing: -0.02em;
  line-height: 1;
  -webkit-text-stroke: 0;
  paint-order: normal;
  cursor: default;
  user-select: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

html[lang="zh-Hans"] .augen-master-btn {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei UI",
    sans-serif;
  font-weight: 400;
  letter-spacing: 0.04em;
  -webkit-text-stroke: 0;
  paint-order: normal;
}

.augen-master-btn:hover {
  background: #fff;
  border-color: #fff;
  color: #0071e3;
}

/* ——— Footer (aligned to caryscloud.com) ——— */
.site-footer {
  --footer-pad: clamp(1.5rem, 5vw, 4rem);
  position: relative;
  z-index: 20;
  background: #1d1e20;
  color: #fff;
  padding: 3.5rem 0 0;
}

.site-footer-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 var(--footer-pad);
  box-sizing: border-box;
}

.site-footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2.5rem 4rem;
  padding-bottom: 3rem;
}

.site-footer-col {
  min-width: 10rem;
}

.site-footer-col--contact {
  text-align: left;
}

@media (min-width: 640px) {
  .site-footer-col--contact {
    text-align: right;
  }

  .site-footer-col--contact .site-footer-heading,
  .site-footer-col--contact .site-footer-email {
    text-align: right;
  }
}

.site-footer-heading {
  margin: 0 0 1.1rem;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.3;
}

.site-footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer-links li + li {
  margin-top: 0.65rem;
}

.site-footer-links a,
.site-footer-email,
.site-footer-email a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.5;
  text-decoration: none;
}

.site-footer-links a:hover,
.site-footer-email a:hover {
  color: #0071e3;
}

.site-footer-email {
  margin: 0;
}

.site-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.15rem 0 1.5rem;
}

.site-footer-legal {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.35rem 0.45rem;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.75rem;
  letter-spacing: 0.01em;
  line-height: 1.6;
  text-align: center;
}

.site-footer-legal a {
  color: inherit;
  text-decoration: none;
}

.site-footer-legal a:hover {
  color: #0071e3;
}

.site-footer-dot {
  opacity: 0.7;
}

.site-footer-icp {
  margin-left: 0.15rem;
}

@media (prefers-reduced-motion: reduce) {
  .hero-wrapper,
  .hero-block-inner,
  .augen-item-line,
  .augen-about-line {
    transition: none !important;
    animation: none !important;
    filter: none !important;
  }
}

/* ——— Mobile menu button ——— */
.chrome-menu-btn {
  display: none;
  pointer-events: auto;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(18px) saturate(1.1);
  -webkit-backdrop-filter: blur(18px) saturate(1.1);
  color: var(--ink);
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chrome-menu-btn__bars,
.chrome-menu-btn__bars::before,
.chrome-menu-btn__bars::after {
  display: block;
  width: 1rem;
  height: 1.5px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.25s var(--ease), opacity 0.2s ease;
}

.chrome-menu-btn__bars {
  position: relative;
}

.chrome-menu-btn__bars::before,
.chrome-menu-btn__bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.chrome-menu-btn__bars::before {
  top: -5px;
}

.chrome-menu-btn__bars::after {
  top: 5px;
}

.chrome.is-nav-open .chrome-menu-btn__bars {
  background: transparent;
}

.chrome.is-nav-open .chrome-menu-btn__bars::before {
  top: 0;
  transform: rotate(45deg);
}

.chrome.is-nav-open .chrome-menu-btn__bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.chrome[data-chrome="inverse"] .chrome-menu-btn {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

/* ——— Responsive / mobile adaptations ——— */
@media (max-width: 859px) {
  .chrome {
    padding: 0.85rem 1rem;
    padding-top: max(0.85rem, env(safe-area-inset-top));
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
  }

  .chrome-menu-btn {
    display: inline-flex;
  }

  .chrome-nav {
    display: none;
    position: fixed;
    top: calc(3.6rem + env(safe-area-inset-top, 0px));
    right: max(0.85rem, env(safe-area-inset-right));
    left: auto;
    transform: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    width: min(14.5rem, calc(100vw - 2rem));
    height: auto;
    padding: 0.55rem;
    border-radius: 1.1rem;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 18px 40px rgba(15, 16, 18, 0.12);
    pointer-events: auto;
    z-index: 60;
  }

  .chrome.is-nav-open .chrome-nav {
    display: flex;
  }

  .chrome-nav a {
    height: 2.55rem;
    padding: 0 0.95rem;
    font-size: 0.9rem;
  }

  .chrome-nav a.is-active::after {
    left: 0.95rem;
    right: auto;
    width: 1.1rem;
    bottom: 0.45rem;
  }

  .chrome[data-chrome="inverse"] .chrome-nav {
    background: rgba(29, 30, 32, 0.94);
  }
}

@media (max-width: 833px) {
  html {
    overflow-x: clip;
  }

  body {
    overflow-x: clip;
  }

  .logo span {
    font-size: 0.95rem;
  }

  .hero-block {
    padding: 0 max(1rem, env(safe-area-inset-right)) 0 max(1rem, env(safe-area-inset-left));
  }

  .hero-block--lead,
  .hero-block--intro {
    min-height: 100svh;
    min-height: 100dvh;
    align-items: flex-end;
    padding-bottom: max(4.5rem, env(safe-area-inset-bottom));
    padding-top: 5.5rem;
  }

  .hero-block--intro {
    align-items: center;
    padding-bottom: max(3rem, env(safe-area-inset-bottom));
  }

  .hero-headline,
  .intro-title {
    font-size: clamp(1.7rem, 8.2vw, 2.35rem);
    line-height: 1.12;
    letter-spacing: -0.015em;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  html[lang="zh-Hans"] .hero-headline,
  html[lang="zh-Hans"] .intro-title {
    overflow-wrap: break-word;
    word-break: normal;
  }

  .hero-block-inner--ruled {
    padding-left: 0.9rem;
    max-width: 100%;
  }

  .hero-intro {
    font-size: 0.98rem;
    max-width: 100%;
  }

  .minds-cta {
    height: auto;
    min-height: 2.75rem;
    padding: 0.65rem 1.15rem;
    max-width: 100%;
  }

  .minds-cta__content {
    white-space: normal;
    text-align: center;
    line-height: 1.25;
  }

  .hero-block--intro .hero-ctas {
    margin-bottom: 2rem;
  }

  .intro-meta {
    letter-spacing: 0.04em;
    font-size: 0.68rem;
    line-height: 1.4;
    white-space: normal;
  }

  /* Timeline: spacious vertical list on phones */
  .augen-dark {
    height: auto;
    max-height: none;
    min-height: 80svh;
    min-height: 80dvh;
    overflow: visible;
    padding: 4.5rem 0;
    align-items: center;
    justify-content: center;
  }

  .augen-dark-inner--timeline {
    gap: 2.35rem;
    width: 100%;
    align-items: center;
    justify-content: center;
    padding: 0 max(1.25rem, env(safe-area-inset-right)) 0 max(1.25rem, env(safe-area-inset-left));
  }

  .pt-head {
    width: 100%;
    max-width: none;
    display: flex;
    justify-content: center;
  }

  .pt-sub {
    margin: 0 auto;
    font-size: 1.02rem;
    line-height: 1.4;
    max-width: none;
    width: 100%;
    color: #ffffff;
    text-align: center;
    text-wrap: pretty;
  }

  .pt-interact {
    gap: 1.75rem;
    width: 100%;
  }

  .pt-system {
    width: 100%;
    margin-top: 1.25rem;
    padding: 1.7rem 0 0.65rem;
  }

  .pt-system__brand {
    padding: 0 0.35rem;
  }

  .pt-system__brand-mark {
    height: clamp(0.88rem, 3.8vw, 1.12rem);
  }

  .pt-watermark {
    display: none;
  }

  .pt-shell {
    width: 100%;
    overflow: visible;
    padding: 1.35rem 0.7rem 1.35rem;
    box-sizing: border-box;
  }

  .pt-timeline {
    --pt-dot-size: 12px;
    --pt-label-space: 0px;
    --pt-axis-y: 1rem;
    --pt-text-gap: 2rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
    min-width: 0;
    width: 100%;
    margin: 0;
    padding: 0.15rem 0 0.35rem;
  }

  .pt-track {
    left: calc(0.05rem + (var(--pt-dot-size) / 2) - 1px);
    right: auto;
    top: 1.35rem;
    bottom: 1.35rem;
    width: 2px;
    height: auto;
  }

  .pt-track__lit {
    inset: 0 0 auto 0;
    width: 100% !important;
    height: var(--pt-lit, 0%);
    background: linear-gradient(
      180deg,
      #005bb8 0%,
      #0071e3 max(var(--pt-lit-core), 8%),
      #4da3ff calc(var(--pt-lit-core) + 18%),
      rgba(0, 113, 227, 0.42) 58%,
      rgba(0, 113, 227, 0.14) 78%,
      rgba(242, 242, 244, 0.14) 92%,
      transparent 100%
    );
    transform-origin: top center;
  }

  .pt-track__lit::before {
    top: 0;
    left: 50%;
    width: 2px;
    height: max(var(--pt-lit-core), 12%);
    transform: translateX(-50%);
    background: linear-gradient(
      180deg,
      rgba(0, 113, 227, 0.55),
      rgba(90, 173, 255, 0.2),
      transparent
    );
  }

  .pt-track__charge {
    display: none;
  }

  .pt-timeline.is-ready .pt-track__lit {
    transition: height 1.45s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .pt-seg {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
    padding: 1.15rem 0 1.35rem;
    min-width: 0;
  }

  .pt-seg:last-child {
    padding-bottom: 1.85rem;
  }

  .pt-seg + .pt-seg {
    border-top: none;
  }

  .pt-seg + .pt-seg::after {
    content: "";
    position: absolute;
    top: 0;
    left: calc(var(--pt-dot-size) + var(--pt-text-gap) + 0.15rem);
    width: min(9.25rem, 48%);
    right: auto;
    height: 1px;
    background: rgba(242, 242, 244, 0.1);
    pointer-events: none;
  }

  /* SVG frame owns the rail — hide CSS track so colors don't double up */
  .pt-system.is-wired .pt-track {
    opacity: 0;
  }

  .pt-system.is-wired .pt-system__path--base {
    stroke: rgba(242, 242, 244, 0.2);
    stroke-width: 1.75;
  }

  .pt-system.is-wired .pt-system__path--soft {
    stroke-width: 2.6;
    stroke: rgba(0, 113, 227, 0.16);
  }

  .pt-system.is-wired .pt-system__path--trail {
    stroke-width: 1.85;
  }

  .pt-system.is-wired .pt-system__path--mid,
  .pt-system.is-wired .pt-system__path--run {
    stroke-width: 1.55;
  }

  .pt-seg.is-live.is-on .pt-seg__dot {
    box-shadow:
      0 0 0 3px #1d1e20,
      0 0 0 4.5px rgba(0, 113, 227, 0.2),
      0 0 10px 2px rgba(0, 113, 227, 0.4),
      0 0 22px 7px rgba(0, 113, 227, 0.2);
  }

  .pt-seg.is-live.is-on .pt-seg__dot::after {
    inset: -16px;
    filter: blur(9px);
    background: radial-gradient(
      circle,
      rgba(90, 170, 255, 0.32) 0%,
      rgba(0, 113, 227, 0.14) 38%,
      rgba(0, 113, 227, 0.05) 62%,
      transparent 86%
    );
  }

  .pt-seg__badge {
    white-space: nowrap;
  }

  .pt-seg::before {
    display: none;
  }

  .pt-seg__main,
  .pt-seg.is-live .pt-seg__main,
  .pt-seg.is-soon .pt-seg__main {
    display: grid;
    grid-template-columns: var(--pt-dot-size) minmax(0, 1fr);
    align-items: start;
    gap: 0;
    row-gap: 0;
    column-gap: var(--pt-text-gap);
    width: 100%;
    min-width: 0;
    padding: 0 0 0 0.05rem;
    text-align: left;
  }

  .pt-seg__dot {
    grid-column: 1;
    grid-row: 1;
    margin-top: 0.28rem;
    flex-shrink: 0;
  }

  .pt-seg__meta,
  .pt-seg.is-live .pt-seg__meta,
  .pt-seg.is-soon .pt-seg__meta {
    grid-column: 2;
    grid-row: 1;
  }

  .pt-seg.is-live .pt-seg__meta,
  .pt-seg.is-soon .pt-seg__meta,
  .pt-seg.is-active .pt-seg__meta,
  .pt-seg:hover .pt-seg__meta,
  .pt-seg:has(.pt-child:hover) .pt-seg__meta,
  .pt-seg:has(.pt-child.is-active) .pt-seg__meta,
  .pt-seg.is-soon.is-active .pt-seg__meta,
  .pt-seg.is-soon:hover .pt-seg__meta,
  .pt-seg.is-soon:has(.pt-child:hover) .pt-seg__meta,
  .pt-seg.is-soon:has(.pt-child.is-active) .pt-seg__meta {
    position: static !important;
    order: 0;
    left: auto !important;
    top: auto !important;
    width: auto;
    max-width: none;
    min-height: 0;
    padding: 0;
    align-items: flex-start;
    text-align: left;
    transform: none !important;
  }

  .pt-seg__meta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    min-width: 0;
    min-height: 0;
  }

  .pt-seg__name {
    font-size: 1.05rem;
    line-height: 1.25;
    overflow-wrap: anywhere;
  }

  .pt-seg.is-live.is-on .pt-seg__name {
    font-size: 1.28rem;
    letter-spacing: 0.1em;
  }

  .pt-seg.is-soon .pt-seg__name {
    font-size: 1.02rem;
  }

  .pt-seg__badge {
    font-size: 0.68rem;
  }

  .pt-seg__kids {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.35rem;
    max-width: calc(100% - 1.35rem);
    width: auto;
    margin: 0;
    margin-left: 0;
    padding-left: calc(var(--pt-dot-size) + var(--pt-text-gap));
    padding-right: 0.85rem;
    box-sizing: border-box;
  }

  .pt-child {
    width: auto;
    max-width: 100%;
    justify-content: flex-start;
    padding: 0.42rem 0.62rem;
    border: 1px solid rgba(242, 242, 244, 0.1);
    border-radius: 0.7rem;
    background: rgba(255, 255, 255, 0.03);
    font-size: 0.8rem;
    line-height: 1.3;
  }

  .pt-child.is-active {
    background: rgba(255, 255, 255, 0.07);
  }

  .pt-detail {
    position: static;
    left: auto;
    top: auto;
    width: 100%;
    height: auto;
    min-height: 5.25rem;
    max-height: none;
    margin-top: 0;
    padding: 0.85rem 0 0;
    justify-content: flex-start;
    text-align: left;
    border-top: 1px solid rgba(242, 242, 244, 0.08);
    transform: none;
  }

  .pt-detail.is-visible,
  .pt-detail.is-leaving {
    transform: none;
  }

  .pt-detail__name {
    font-size: 1.05rem;
  }

  .pt-detail__copy {
    -webkit-line-clamp: 5;
    line-clamp: 5;
    text-align: left;
    font-size: 0.88rem;
    line-height: 1.5;
  }

  /* Answer */
  .augen-answer-inner {
    gap: 2.5rem;
    min-height: 80svh;
    min-height: 80dvh;
    padding: 4.5rem max(1.15rem, env(safe-area-inset-right)) 4rem max(1.15rem, env(safe-area-inset-left));
  }

  .augen-answer-title {
    font-size: clamp(1.85rem, 9vw, 2.75rem);
    line-height: 1.12;
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  html[lang="zh-Hans"] .augen-answer-title {
    overflow-wrap: break-word;
  }

  .augen-answer-copy p {
    font-size: 1rem;
    line-height: 1.45;
  }

  /* Architecture / practice */
  .augen-about {
    min-height: 80svh;
    min-height: 80dvh;
    padding: 5rem 0 4.5rem;
    align-items: center;
  }

  .augen-about-inner {
    width: min(100% - 2rem, 58rem);
  }

  .augen-about-item + .augen-about-item {
    padding-top: 4.75rem;
  }

  .augen-about-subtitle {
    max-width: 100%;
    font-size: clamp(1.25rem, 5.5vw, 1.55rem);
  }

  .augen-about-copy {
    max-width: 100%;
    font-size: 0.98rem;
    line-height: 1.45;
  }

  .pyramid-stage {
    min-height: 16rem;
  }

  .pyramid {
    width: min(100%, 18.5rem);
    gap: 0.55rem;
  }

  .pyramid-layer {
    --w: calc(8.6rem + var(--i) * 1.65rem);
    --h: calc(2.35rem + var(--i) * 0.12rem);
    padding: 0 0.65rem;
  }

  .pyramid-layer__name {
    white-space: normal;
    font-size: 0.72rem;
    letter-spacing: 0.02em;
  }

  .pyramid-legend {
    min-height: 0;
    gap: 0.7rem;
  }

  .pyramid-legend__copy p {
    font-size: 0.8rem;
  }

  /* Remains */
  .augen-master {
    min-height: 80svh;
    min-height: 80dvh;
    padding: 4.5rem max(1.15rem, env(safe-area-inset-right)) 4.25rem max(1.15rem, env(safe-area-inset-left));
  }

  .augen-master-title {
    width: 100%;
    max-width: none;
    margin-inline: auto;
    font-size: clamp(1.2rem, 5.2vw, 2rem);
    line-height: 1.3;
    text-align: center;
  }

  .augen-master-title span {
    white-space: nowrap;
  }

  .augen-master-lede {
    margin-top: 1.35rem;
    font-size: 0.95rem;
    line-height: 1.45;
  }

  .augen-master-btn {
    margin-top: 1.85rem;
    height: 2.65rem;
    padding: 0 1.25rem;
    font-size: 0.9rem;
  }

  .site-footer {
    padding: 3rem 0 0;
  }

  .site-footer-inner {
    padding: 0 max(1.15rem, env(safe-area-inset-right)) 0 max(1.15rem, env(safe-area-inset-left));
  }

  .site-footer-bottom {
    padding-bottom: max(1.35rem, env(safe-area-inset-bottom));
  }
}

@media (max-width: 420px) {
  .hero-headline,
  .intro-title {
    font-size: clamp(1.55rem, 7.5vw, 1.95rem);
  }

  .pyramid-layer {
    --w: calc(7.8rem + var(--i) * 1.45rem);
  }
}