:root {
  --section-min: calc(100vh - var(--header-h));
  --section-min: calc(100svh - var(--header-h));
  --surface: rgba(255, 255, 255, 0.84);
}

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

h1, h2, h3, h4, h5, h6 {
  margin-block-start: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  letter-spacing: 0;
}
code, pre, kbd, samp { font-family: var(--font-mono); }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page-surface);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: 0;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

.js.is-hero-preloading,
.js.is-hero-preloading body {
  overflow: hidden;
}

.site-preloader {
  display: none;
}

.js .site-preloader {
  position: fixed;
  z-index: 1000;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--page-surface);
  opacity: 1;
  transition: opacity 420ms ease, visibility 420ms ease;
}

.js .site-preloader.is-leaving {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.site-preloader img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  transform-origin: center;
  animation: site-preloader-breathe 1.5s ease-in-out infinite;
}

@keyframes site-preloader-breathe {
  0%, 100% {
    opacity: 0.76;
    transform: scale(0.94);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

.site-preloader-progress {
  min-width: 4ch;
  margin-top: 16px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  font-weight: var(--weight-medium);
  line-height: 1;
  text-align: center;
}

body.menu-open { overflow: hidden; }

button, select, input, textarea { font: inherit; }
button, a, select { color: inherit; }
a { text-decoration: none; }
button { font-family: var(--font-ui); letter-spacing: 0; }
button, a, select { -webkit-tap-highlight-color: transparent; }
button:disabled, select:disabled, [aria-disabled="true"] {
  cursor: not-allowed;
  opacity: var(--disabled-opacity);
  box-shadow: none;
}
button:disabled, select:disabled { pointer-events: none; }
p, li, dd { line-break: strict; overflow-wrap: break-word; }
img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }

.content-width {
  width: min(var(--content), calc(100% - 48px));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 8px 16px;
  color: #fff;
  background: var(--jade-deep);
  transform: translateY(-160%);
  transition: transform var(--ease-ui);
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 2px solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
  box-shadow: var(--focus-ring-shadow);
}

.icon {
  width: var(--icon-lg);
  height: var(--icon-lg);
  flex: 0 0 auto;
  fill: none;
  color: currentColor;
}

.site-header {
  position: sticky;
  z-index: var(--z-navigation);
  top: 0;
  height: var(--header-h);
  border-bottom: 1px solid var(--line-soft);
  background: rgba(250, 248, 242, 0.9);
  box-shadow: 0 4px 18px rgba(48, 44, 35, 0.06);
  backdrop-filter: blur(14px);
  transition: background-color var(--ease-ui), border-color var(--ease-ui), box-shadow var(--ease-ui), backdrop-filter var(--ease-ui);
}

.site-header:not(.is-scrolled) {
  border-bottom-color: transparent;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.site-header:not(.is-scrolled) .brand {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.header-inner {
  width: calc(100% - (2 * var(--site-gutter-wide, 72px)));
  height: 100%;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  width: max-content;
  border-radius: var(--radius-control);
  transition: opacity var(--ease-ui);
}

.brand:hover, .brand:focus-visible { opacity: 0.78; }
.brand:active { opacity: 0.66; }

.brand img { display: block; flex: 0 0 auto; height: 36px; object-fit: contain; }
.brand-logo { width: auto; aspect-ratio: 409.703 / 186.128; }
.site-menu {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  font-family: var(--font-ui);
}

.site-nav, .header-actions {
  display: flex;
  align-items: center;
  font-family: var(--font-ui);
}

.site-nav { justify-content: center; gap: 28px; }
.header-actions { justify-content: flex-end; gap: 20px; }

.site-nav a, .header-actions a {
  position: relative;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-size: 18px;
  font-weight: var(--weight-semibold);
  line-height: var(--leading-compact);
  border-radius: var(--radius-control);
  white-space: nowrap;
  transition: color var(--ease-ui), opacity var(--ease-ui);
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 50%;
  bottom: 6px;
  left: 50%;
  height: 2px;
  background: var(--jade);
  transition: right var(--ease-ui), left var(--ease-ui);
}

.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="location"],
.header-actions a:hover, .header-actions a:focus-visible { color: var(--jade-deep); }
.site-nav a:hover::after, .site-nav a:focus-visible::after, .site-nav a[aria-current="location"]::after { right: 0; left: 0; }
.site-nav a:active, .header-actions a:active { opacity: 0.66; }
.site-header:not(.is-scrolled) .site-nav a,
.site-header:not(.is-scrolled) .header-actions a {
  color: var(--ink);
  text-shadow: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-icon);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow-control);
  cursor: pointer;
  transition: border-color var(--ease-ui), background-color var(--ease-ui), box-shadow var(--ease-ui), transform var(--ease-ui);
}

.nav-toggle:hover { border-color: var(--interactive-border-hover); background: var(--surface-hover); box-shadow: var(--shadow-interactive); }
.nav-toggle:active { background: var(--surface-pressed); box-shadow: none; transform: translateY(1px); }

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  margin: 5px 0;
  background: var(--ink);
  transition: transform var(--ease-ui), opacity var(--ease-ui);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* 中英文切换入口：桌面端固定在页头最右侧，移动端位于导航按钮左侧，始终可见。 */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius-surface);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow-control);
  font-family: var(--font-ui);
}

.lang-switch button {
  width: 42px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  line-height: 1;
  cursor: pointer;
  transition: color var(--ease-ui), background-color var(--ease-ui);
}

.lang-switch button:hover { color: var(--jade-deep); background: var(--surface-hover-subtle); }
.lang-switch button:active { background: var(--surface-pressed); }
.lang-switch button[aria-pressed="true"] { color: var(--page-surface); background: var(--jade-deep); cursor: default; }
.lang-switch button:focus-visible { outline: 2px solid var(--focus-ring-color); outline-offset: 2px; }

/* 英文首屏：等待 site.js 替换完译文再显示，lang.js 设有超时兜底。 */
html.i18n-pending body { visibility: hidden; }

@media (min-width: 961px) {
  :root {
    --header-h: 64px;
    --site-gutter-wide: clamp(72px, 5.86vw, 120px);
    --lang-switch-offset: 112px;
  }

  .header-inner {
    position: relative;
    display: block;
  }

  .brand {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
  }

  .site-menu {
    display: block;
    height: 100%;
  }

  .site-nav {
    height: 100%;
    justify-content: center;
  }

  .header-actions {
    position: absolute;
    top: 0;
    right: var(--lang-switch-offset);
    height: 100%;
  }

  .lang-switch {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
  }
}

/* 语言入口占用了页头右侧空间：中等桌面宽度下导航改为靠左排列，避免与右侧入口重叠；英文文字更长，适用范围更宽。 */
@media (min-width: 961px) and (max-width: 1180px) {
  .site-nav { justify-content: flex-start; padding-left: 116px; }
}

@media (min-width: 961px) and (max-width: 1360px) {
  html[lang="en"] .site-nav { justify-content: flex-start; gap: 16px; padding-left: 116px; }
  html[lang="en"] .site-nav a, html[lang="en"] .header-actions a { font-size: 16px; }
  html[lang="en"] .header-actions { gap: 16px; }
}

.page-section {
  position: relative;
  background: var(--page-surface);
}

.section-content {
  min-height: var(--section-min);
  padding: 72px 0 48px;
}

.section-heading {
  position: relative;
  z-index: var(--z-text);
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.section-heading h1,
.section-heading h2 {
  margin: 0;
  font-size: var(--text-section-title);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
  letter-spacing: 0;
  text-wrap: balance;
}

.section-heading > p:last-child {
  max-width: 760px;
  margin: var(--space-2) auto 0;
  color: var(--ink-soft);
  font-size: var(--text-body-lg);
  line-height: var(--leading-body);
  text-wrap: balance;
}

/* Hero follows the Figma layout: left-aligned thesis, benefits, then primary action. */
.hero {
  isolation: isolate;
  display: grid;
  margin-top: calc(-1 * var(--header-h));
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100dvh;
  grid-template-rows: minmax(0, 1fr);
  padding: 0;
  overflow: hidden;
  background: var(--page-surface);
}

.hero-scene {
  position: absolute;
  z-index: var(--z-scene);
  inset: 0;
  overflow: hidden;
  background: var(--page-surface) url("../images/hero/hero-citadel-enhanced-final-frame-v1.jpg") left center / auto 114% no-repeat;
  filter: brightness(0.97) contrast(1.03);
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
  transform: translateX(10%) scale(1.05);
  transform-origin: center;
}

.hero-video--sequence {
  z-index: 2;
  opacity: 1;
  transition: opacity 160ms linear;
}

.hero-video--loop { z-index: 1; }

.hero-scene.is-video-looping .hero-video--sequence { opacity: 0; }

.hero-scene.is-video-static .hero-video { display: none; }

@media (prefers-reduced-motion: reduce), (max-width: 720px) {
  .hero-video { display: none; }
}

.hero::before {
  content: "";
  position: absolute;
  z-index: var(--z-atmosphere);
  inset: 0;
  background:
    linear-gradient(90deg,
      rgba(255, 255, 255, 0.98) 0%,
      rgba(255, 255, 255, 0.95) 360px,
      rgba(255, 255, 255, 0.86) 520px,
      rgba(255, 255, 255, 0.66) 650px,
      rgba(255, 255, 255, 0.4) 760px,
      rgba(255, 255, 255, 0.18) 860px,
      rgba(255, 255, 255, 0.06) 960px,
      transparent 1040px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 28%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: var(--z-atmosphere);
  inset: auto 0 0;
  height: clamp(220px, 24vh, 320px);
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.06) 28%,
    rgba(255, 255, 255, 0.2) 56%,
    rgba(255, 255, 255, 0.58) 84%,
    #fff 100%
  );
}

.hero-main {
  --hero-copy-width: 590px;
  --hero-support-width: 582px;
  position: relative;
  z-index: var(--z-text);
  display: grid;
  min-height: 0;
  grid-template-columns: minmax(0, 600px) minmax(0, 1fr);
  grid-template-rows: repeat(3, auto);
  align-content: start;
  align-items: start;
  justify-content: start;
  column-gap: 0;
  row-gap: 0;
  padding: calc(var(--header-h) + 136px) 0 40px;
  text-align: left;
  transform: none;
}

.hero-main.content-width { width: calc(100% - (2 * var(--site-gutter-wide, 72px))); }

.hero-intro {
  width: var(--hero-copy-width);
  min-width: 0;
  grid-column: 1;
  grid-row: 1;
}

.hero h1 {
  max-width: 590px;
  margin: 0;
  font-size: 58px;
  font-weight: var(--weight-heavy);
  line-height: var(--leading-tight);
  font-family: var(--font-hero-title);
  text-shadow: 0 1px 16px rgba(255, 255, 255, 0.9);
}

.hero-lede {
  width: var(--hero-copy-width);
  min-height: 3.4em;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  font-weight: var(--weight-medium);
  line-height: 1.7;
  text-wrap: pretty;
}

.js .hero-lede { visibility: hidden; }
.js .hero-lede.is-typewriter-ready { visibility: visible; }

.hero-lede.is-typewriting::after {
  content: "";
  display: inline-block;
  width: 1px;
  height: 1em;
  margin-left: 3px;
  background: currentColor;
  vertical-align: -0.1em;
  animation: hero-lede-caret 360ms steps(1, end) infinite;
}

@keyframes hero-lede-caret {
  50% { opacity: 0; }
}

.download-panel {
  position: relative;
  isolation: isolate;
  display: grid;
  width: var(--hero-support-width);
  grid-column: 1;
  grid-row: 3;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  grid-template-rows: auto 44px;
  justify-items: start;
  column-gap: 12px;
  row-gap: 8px;
  margin-top: 44px;
}

.primary-action {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  height: 64px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 24px;
  overflow: hidden;
  border: 1px solid rgba(181, 156, 107, 0.74);
  border-radius: var(--radius-primary-action);
  color: #ead8b6;
  background:
    radial-gradient(circle at 50% -36%, rgba(216, 200, 168, 0.16), transparent 58%),
    linear-gradient(180deg, rgba(40, 43, 37, 0.99), rgba(24, 27, 23, 0.99));
  font-family: var(--font-ui);
  font-size: 18px;
  font-weight: var(--weight-semibold);
  box-shadow: 0 8px 20px rgba(37, 40, 34, 0.15), inset 0 1px rgba(255, 255, 255, 0.06);
  transition: border-color 140ms ease, color 140ms ease, transform var(--ease-ui), box-shadow var(--ease-ui);
}

.primary-download {
  width: 100%;
  grid-column: 1;
  grid-row: 1;
}

.primary-action::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  background: linear-gradient(110deg, #8d7442 0%, #b59c6b 52%, #cbb27c 100%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease-out;
}

.primary-action::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  right: 24px;
  left: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(216, 200, 168, 0.42), transparent);
  pointer-events: none;
}

.primary-action > * { position: relative; z-index: 1; }
.primary-action:not([aria-disabled="true"]):hover,
.primary-action:not([aria-disabled="true"]):focus-visible { border-color: #cbb27c; color: #fffdf8; box-shadow: 0 12px 24px rgba(91, 72, 37, 0.22), 0 0 0 3px rgba(181, 156, 107, 0.12); transform: translateY(-1px); }
.primary-action:focus-visible { outline-color: rgba(181, 156, 107, 0.9); }
.primary-action:not([aria-disabled="true"]):hover::before,
.primary-action:not([aria-disabled="true"]):focus-visible::before { opacity: 1; }
.primary-action:not([aria-disabled="true"]):active { box-shadow: 0 4px 10px rgba(37, 40, 34, 0.16); transform: translateY(0); }
.download-mark {
  position: relative;
  display: grid;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  place-items: center;
}

.download-mark svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--gold-pale);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: var(--icon-stroke-width);
  filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.24));
  transition: transform var(--ease-ui), stroke var(--ease-ui);
}

.primary-action:not([aria-disabled="true"]):hover .download-mark svg,
.primary-action:not([aria-disabled="true"]):focus-visible .download-mark svg { stroke: #fffdf8; transform: translateY(1px); }

.download-knowledge {
  display: inline-flex;
  width: 100%;
  height: 64px;
  align-items: center;
  justify-content: center;
  grid-column: 2;
  grid-row: 1;
  padding: 12px 20px;
  border: 1px solid var(--interactive-border-hover);
  border-radius: var(--radius-primary-action);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.12);
  font-family: var(--font-ui);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  line-height: var(--leading-compact);
  transition: color var(--ease-ui), border-color var(--ease-ui), background-color var(--ease-ui), transform var(--ease-ui), box-shadow var(--ease-ui);
}

.download-knowledge:hover,
.download-knowledge:focus-visible {
  color: var(--jade-deep);
  border-color: var(--jade-deep);
  background: rgba(255, 255, 255, 0.42);
  box-shadow: var(--shadow-control);
  transform: translateY(-1px);
}

.download-knowledge:active { background: var(--surface-pressed); transform: translateY(0); }

.download-choice {
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  grid-column: 1;
  grid-row: 2;
  gap: 8px;
  margin-top: 0;
  color: rgba(101, 104, 95, 0.62);
  font-family: var(--font-ui);
  font-size: var(--text-body-xs);
  line-height: var(--leading-compact);
}

.download-platform-label { white-space: nowrap; }

.download-switch {
  position: relative;
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  cursor: pointer;
  transition: color var(--ease-ui);
}

.download-switch select {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  opacity: 0;
}

.download-switch-label {
  position: relative;
  pointer-events: none;
}

.download-switch-label::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -2px;
  left: 0;
  height: 1px;
  background: currentColor;
  opacity: 0;
  transform: scaleX(0.5);
  transition: opacity var(--ease-ui), transform var(--ease-ui);
}

.download-switch:hover,
.download-switch:focus-within { color: var(--jade-deep); }

.download-switch:hover .download-switch-label::after,
.download-switch:focus-within .download-switch-label::after { opacity: 0.62; transform: scaleX(1); }

.download-switch select:focus-visible {
  outline: 0;
  box-shadow: none;
}

.download-switch:has(select:focus-visible) {
  border-radius: var(--radius-control);
  outline: 2px solid var(--focus-ring-color);
  outline-offset: 1px;
  box-shadow: var(--focus-ring-shadow);
}

.hero-features {
  position: relative;
  z-index: var(--z-assets);
  display: grid;
  width: var(--hero-support-width);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-column: 1;
  grid-row: 2;
  gap: 0;
  justify-content: start;
  margin: 32px 0 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  transform: none;
}

.hero-feature {
  position: relative;
  display: block;
  min-height: 152px;
  padding: 32px 20px 28px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: left;
}

.hero-feature + .hero-feature::before {
  content: "";
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 0;
  width: 1px;
  background: var(--line-soft);
}

.hero-feature > * { position: relative; z-index: var(--z-text); }
.hero-feature:nth-child(2) { padding-left: 26px; }
.hero-feature:nth-child(3) { padding-left: 50px; }
.hero-feature h2 { margin: 0; font-size: 20px; font-weight: var(--weight-semibold); line-height: 1.5; }
.hero-feature p { margin: 12px 0 0; color: rgba(101, 104, 95, 0.58); font-size: 16px; font-weight: var(--weight-medium); line-height: 1.75; }
.hero-feature p span { display: block; }

.hero-caption {
  position: absolute;
  z-index: var(--z-text);
  right: 64px;
  bottom: 48px;
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  color: rgba(101, 104, 95, 0.72);
  font-family: var(--font-slogan);
  font-size: 14px;
  line-height: 1.5;
}

.hero-caption span { width: 48px; height: 1px; background: var(--gold); }

.card-icon {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--interactive-border);
  border-radius: var(--radius-icon);
  color: var(--jade);
  background: var(--surface-selected);
}

.card-icon .icon { width: var(--icon-md); height: var(--icon-md); }

/* Agent architecture */
.architecture {
  --architecture-reveal-duration: 5000ms;
  --architecture-card-duration: 900ms;
  isolation: isolate;
  min-height: var(--section-min);
  overflow: hidden;
  background: var(--page-surface);
}

.architecture .section-content {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1240px, calc(100% - 48px));
  min-height: var(--section-min);
  align-content: center;
  padding: 72px 0;
}

.architecture-grid {
  position: relative;
  display: grid;
  height: 656px;
  grid-template-columns: minmax(280px, 1fr) minmax(480px, 1.78fr) minmax(280px, 1fr);
  align-items: center;
  gap: 32px;
  margin-top: 24px;
}

.architecture-grid::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: -24px;
  right: 23%;
  bottom: -24px;
  left: 23%;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.86) 0%, rgba(255, 255, 255, 0.54) 52%, rgba(255, 255, 255, 0) 76%);
  pointer-events: none;
}

.architecture-cards {
  position: relative;
  z-index: 2;
  display: grid;
  height: 608px;
  grid-template-rows: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
  align-self: center;
  transition: grid-template-rows 360ms cubic-bezier(0.22, 1, 0.36, 1), gap 360ms cubic-bezier(0.22, 1, 0.36, 1);
}

.architecture-card {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 0;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-template-rows: minmax(40px, auto) minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 8px;
  padding: 16px 20px 18px;
  overflow: hidden;
  border: 1px solid rgba(82, 104, 84, 0.16);
  border-radius: var(--radius-card);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.46);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.72);
  cursor: pointer;
  filter: opacity(1);
  transition: background-color var(--ease-ui), border-color var(--ease-ui), box-shadow var(--ease-ui), transform var(--ease-ui), filter 200ms ease, padding var(--ease-out), z-index 0s linear;
}

.architecture-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 20px;
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, rgba(181, 156, 107, 0.92), rgba(181, 156, 107, 0));
  opacity: 0.72;
  transition: width var(--ease-out), opacity var(--ease-ui);
}

.architecture-cards-left .architecture-card::before {
  right: 20px;
  left: auto;
  background: linear-gradient(270deg, rgba(181, 156, 107, 0.92), rgba(181, 156, 107, 0));
}

.architecture-card > * { position: relative; z-index: 1; }

.architecture-card .card-icon {
  position: relative;
  grid-area: 1 / 1;
  width: var(--icon-control-size);
  height: var(--icon-control-size);
  align-self: center;
  border-color: var(--interactive-border);
  border-radius: 50%;
  color: var(--jade-deep);
  background: var(--surface-interactive);
  box-shadow: 0 1px 2px rgba(55, 51, 43, 0.06);
  transition: border-color var(--ease-ui), background-color var(--ease-ui), box-shadow var(--ease-ui), color var(--ease-ui);
}
.architecture-card .card-icon::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(181, 156, 107, 0.44);
  border-radius: 50%;
  pointer-events: none;
}
.architecture-card .card-icon .icon { z-index: 1; width: var(--icon-md); height: var(--icon-md); overflow: visible; }
.architecture-card .card-icon .icon-stroke {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: var(--icon-stroke-width);
}
.architecture-card h3 {
  grid-area: 1 / 2;
  display: flex;
  align-items: center;
  align-self: center;
  gap: 8px;
  margin: 0;
  color: var(--ink);
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
}
.architecture-card h3::after {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  margin-left: auto;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  color: var(--jade);
  opacity: 0.72;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--ease-ui), opacity var(--ease-ui);
}
.architecture-card > p {
  grid-row: 2;
  grid-column: 1 / -1;
  align-self: start;
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-body-sm);
  line-height: var(--leading-body);
  text-wrap: pretty;
  transition: max-height 180ms ease, opacity 160ms ease, transform 180ms ease;
}

.architecture-card-detail {
  position: static;
  z-index: 1;
  display: grid;
  grid-row: 3;
  grid-column: 1 / -1;
  align-content: start;
  gap: 16px;
  min-height: 0;
  max-height: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: transparent;
  box-shadow: none;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  visibility: hidden;
  transition: max-height 320ms cubic-bezier(0.22, 1, 0.36, 1), padding 320ms cubic-bezier(0.22, 1, 0.36, 1), opacity 180ms ease, transform var(--ease-out), visibility 0s linear 320ms;
}

.architecture-card-detail p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-body-xs);
  line-height: 1.65;
  text-wrap: pretty;
}

.architecture-card-detail ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 0;
  color: rgba(37, 40, 34, 0.9);
  font-size: var(--text-label);
  line-height: 1.65;
  list-style: none;
}

.architecture-card-detail strong { color: var(--ink); font-weight: var(--weight-semibold); }

@media (min-width: 1041px) {
  .architecture-card-detail {
    grid-template-rows: auto minmax(min-content, 1fr);
    align-content: stretch;
  }

  .architecture-card-detail:not(:has(> p)) {
    grid-template-rows: minmax(min-content, 1fr);
  }

  .architecture-card-detail ul {
    height: 100%;
    align-content: space-between;
  }

  .architecture-card[data-content-density="relaxed"] .architecture-card-detail {
    gap: 24px;
  }

  .architecture-card[data-content-density="relaxed"] .architecture-card-detail p {
    line-height: 1.72;
  }

  .architecture-card[data-content-density="relaxed"] .architecture-card-detail ul {
    gap: 20px;
    line-height: 1.72;
  }

  .architecture-card[data-content-density="relaxed"]:hover:not([data-hover-suppressed="true"]) .architecture-card-detail,
  .architecture-card[data-content-density="relaxed"]:focus-visible:not([data-hover-suppressed="true"]) .architecture-card-detail,
  .architecture-card[data-content-density="relaxed"][aria-expanded="true"] .architecture-card-detail {
    padding-top: 26px;
    padding-bottom: 18px;
  }
}

.architecture-card:hover:not([data-hover-suppressed="true"]),
.architecture-card:focus-visible:not([data-hover-suppressed="true"]),
.architecture-card[aria-expanded="true"] {
  z-index: 3;
  grid-template-rows: minmax(40px, auto) 0 minmax(0, 1fr);
  row-gap: 0;
  padding: 24px;
  border-color: var(--interactive-border-hover);
  background-color: rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.74), 0 10px 24px rgba(61, 55, 44, 0.1);
}

.architecture-card:hover:not([data-hover-suppressed="true"])::before,
.architecture-card:focus-visible:not([data-hover-suppressed="true"])::before,
.architecture-card[aria-expanded="true"]::before {
  width: 72px;
  opacity: 1;
}

.architecture-card:hover:not([data-hover-suppressed="true"]) .card-icon,
.architecture-card:focus-visible:not([data-hover-suppressed="true"]) .card-icon,
.architecture-card[aria-expanded="true"] .card-icon {
  border-color: var(--interactive-border-hover);
  color: var(--jade-deep);
  background: var(--surface-hover);
  box-shadow: 0 0 0 3px rgba(82, 104, 84, 0.08);
}

.architecture-card:active { background-color: var(--surface-pressed); transform: translateY(1px); }

.architecture-card:hover:not([data-hover-suppressed="true"]) > p,
.architecture-card:focus-visible:not([data-hover-suppressed="true"]) > p,
.architecture-card[aria-expanded="true"] > p {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(-4px);
}

.architecture-card:hover:not([data-hover-suppressed="true"]) .architecture-card-detail,
.architecture-card:focus-visible:not([data-hover-suppressed="true"]) .architecture-card-detail,
.architecture-card[aria-expanded="true"] .architecture-card-detail {
  max-height: none;
  padding: 16px 0 0;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  visibility: visible;
  transition-delay: 0s;
}

.architecture-card:hover:not([data-hover-suppressed="true"]) h3::after,
.architecture-card:focus-visible:not([data-hover-suppressed="true"]) h3::after,
.architecture-card[aria-expanded="true"] h3::after {
  opacity: 1;
  transform: rotate(225deg) translate(-1px, -1px);
}

@media (min-width: 1041px) {
  .architecture-cards:has(.architecture-card:nth-child(1)[aria-expanded="true"]) {
    grid-template-rows: minmax(0, 1fr) 80px 80px;
  }

  .architecture-cards:has(.architecture-card:nth-child(2)[aria-expanded="true"]) {
    grid-template-rows: 80px minmax(0, 1fr) 80px;
  }

  .architecture-cards:has(.architecture-card:nth-child(3)[aria-expanded="true"]) {
    grid-template-rows: 80px 80px minmax(0, 1fr);
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) {
    gap: 8px;
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card[aria-expanded="true"] {
    padding: 20px;
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card[aria-expanded="true"] .architecture-card-detail {
    height: auto;
    align-content: start;
    gap: 10px;
    padding-top: 12px;
    padding-bottom: 0;
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card[aria-expanded="true"] .architecture-card-detail p,
  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card[aria-expanded="true"] .architecture-card-detail ul {
    line-height: 1.5;
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card[aria-expanded="true"] .architecture-card-detail ul {
    height: auto;
    align-content: start;
    gap: 8px;
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card:not([aria-expanded="true"]) {
    min-height: 80px;
    grid-template-rows: minmax(40px, auto);
    align-content: center;
    row-gap: 0;
    padding: 12px 16px;
    border-color: rgba(82, 104, 84, 0.14);
    background: rgba(255, 255, 255, 0.58);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.72);
    filter: opacity(0.82);
    pointer-events: auto;
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card:not([aria-expanded="true"]) > p {
    display: none;
  }

  .architecture-cards:has(.architecture-card[aria-expanded="true"]) .architecture-card:not([aria-expanded="true"])::before {
    width: 40px;
    opacity: 0.54;
  }
}

.architecture-indicators {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: none;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.architecture-indicator {
  --indicator-delay: 0ms;
  --indicator-duration: 820ms;
  opacity: 0;
  transition: opacity 140ms ease;
}

.architecture-indicator[data-indicator="heart"] { --indicator-delay: 820ms; }
.architecture-indicator[data-indicator="legs"] { --indicator-delay: 1640ms; }
.architecture-indicator[data-indicator="hand"] { --indicator-delay: 2460ms; }
.architecture-indicator[data-indicator="throat"] { --indicator-delay: 3280ms; }
.architecture-indicator[data-indicator="orbit"] { --indicator-delay: 4100ms; --indicator-duration: 920ms; }

.architecture-indicator-line {
  fill: none;
  stroke: rgba(61, 81, 64, 0.88);
  stroke-width: 1.15px;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
  transition: stroke-dashoffset 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.architecture-indicator-node {
  fill: none;
  stroke: rgba(61, 81, 64, 0.92);
  stroke-width: 8px;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}

@media (min-width: 1041px) {
  .architecture-indicators { display: block; }

  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="head"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="head"],
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="heart"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="heart"],
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="legs"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="legs"],
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="hand"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="hand"],
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="throat"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="throat"],
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="orbit"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="orbit"] {
    opacity: 1;
  }

  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="head"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="head"] .architecture-indicator-line,
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="heart"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="heart"] .architecture-indicator-line,
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="legs"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="legs"] .architecture-indicator-line,
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="hand"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="hand"] .architecture-indicator-line,
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="throat"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="throat"] .architecture-indicator-line,
  .architecture.is-wire-done .architecture-grid:has(.architecture-card[data-indicator="orbit"]:is(:hover, [aria-expanded="true"])) .architecture-indicator[data-indicator="orbit"] .architecture-indicator-line {
    stroke-dashoffset: 0;
  }
}

.agent-schematic {
  position: relative;
  z-index: 2;
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  margin: 0;
  overflow: visible;
}

.agent-construction {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  width: min(682px, 110%);
  aspect-ratio: 1;
  height: auto;
  max-width: none;
  max-height: none;
  overflow: visible;
  background: transparent;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.construction-path {
  fill: none;
  stroke-dasharray: 100;
  stroke-dashoffset: 0;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
  will-change: stroke-dashoffset, opacity;
}
.construction-orbit-primary, .construction-final-orbit-primary { stroke: #728678; stroke-width: 1.2px; }
.construction-orbit-secondary, .construction-final-orbit-secondary { stroke: #d8cdb8; stroke-width: 0.8px; }
.construction-frame, .construction-final-frame { stroke: #b8bcb4; stroke-width: 0.9px; }
.construction-axis, .construction-final-axis { stroke: #adb3ac; stroke-width: 0.7px; }

.construction-final {
  fill: none;
  opacity: 0;
  vector-effect: non-scaling-stroke;
}

.architecture.is-wire-done .construction-final { opacity: 1; }

.agent-figure-stack {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: min(682px, 110%);
  aspect-ratio: 1;
  height: auto;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.agent-figure {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 74%;
  max-width: none;
  height: auto;
  opacity: 0;
  object-fit: contain;
  transform: translate3d(-50%, -50%, 0);
  transform-origin: 50% 50%;
  backface-visibility: hidden;
  will-change: opacity;
}

.agent-schematic figcaption {
  position: absolute;
  z-index: 3;
  bottom: 0;
  padding: 6px 0;
  border: 0;
  color: var(--gold-text);
  background: transparent;
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  line-height: 1.4;
  text-shadow: 0 1px 3px var(--page-surface), 0 0 8px var(--page-surface);
}

@media (max-width: 1180px) {
  .architecture .section-content { width: min(1100px, calc(100% - 48px)); }
  .architecture .architecture-grid {
    grid-template-columns: minmax(250px, 1fr) minmax(420px, 1.72fr) minmax(250px, 1fr);
    gap: 24px;
  }
}

@media (max-width: 1040px) {
  .architecture .section-content { min-height: 0; padding: 88px 0 64px; }
  .architecture .architecture-grid {
    height: auto;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "figure figure" "left right";
    align-items: start;
  }
  .architecture .architecture-cards { height: auto; }
  .architecture .architecture-card { min-height: 164px; flex: 0 0 auto; }
  .architecture .agent-schematic { height: 480px; }
  .architecture .agent-construction,
  .architecture .agent-figure-stack { width: min(460px, 100%); height: auto; }
}

/* Presets */
.page-section.presets {
  isolation: isolate;
  border-top: 0;
  min-height: 100vh;
  min-height: 100dvh;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--page-surface-muted);
}

.preset-image {
  --preset-focus-shift-x: clamp(80px, 8vw, 224px);
  position: absolute;
  z-index: var(--z-scene);
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: translate3d(var(--preset-focus-shift-x), 0, 0);
  transition: opacity 180ms ease, transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.preset-wash {
  position: absolute;
  z-index: var(--z-atmosphere);
  inset: 0;
  background:
    linear-gradient(180deg,
      rgba(253, 252, 249, 0.98) 0%,
      rgba(253, 252, 249, 0.48) 7%,
      rgba(253, 252, 249, 0.08) 16%,
      transparent 24%,
      transparent 80%,
      rgba(253, 252, 249, 0.16) 90%,
      rgba(253, 252, 249, 0.68) 96%,
      rgba(253, 252, 249, 0.98) 100%),
    linear-gradient(90deg,
      rgba(253, 252, 249, 0.99) 0%,
      rgba(253, 252, 249, 0.98) 30%,
      rgba(253, 252, 249, 0.9) 43%,
      rgba(253, 252, 249, 0.58) 54%,
      rgba(253, 252, 249, 0.16) 67%,
      transparent 78%);
  pointer-events: none;
}

.preset-layout {
  --preset-info-width: 560px;
  --preset-identity-text-inset: 0px;
  position: relative;
  z-index: var(--z-text);
  display: grid;
  grid-template-columns: minmax(0, var(--preset-info-width)) minmax(0, 1fr);
  grid-template-rows: auto auto minmax(0, 1fr);
  column-gap: 64px;
  min-height: 100vh;
  min-height: 100dvh;
  height: 100vh;
  height: 100dvh;
  padding: calc(var(--header-h) + 24px) 0 32px;
}

.preset-layout.content-width { width: min(1240px, calc(100% - 48px)); }

.preset-heading {
  width: min(542px, calc(100% - var(--preset-identity-text-inset)));
  max-width: none;
  margin: 0 0 0 var(--preset-identity-text-inset);
  text-align: left;
}

@media (min-width: 961px) {
  .preset-heading { transform: translateY(64px); }
}

.preset-info-cluster {
  display: flex;
  width: var(--preset-info-width);
  height: auto;
  flex-direction: column;
  grid-column: 1;
  grid-row: 1;
  justify-content: flex-start;
  gap: 192px;
  transform: none;
}

.preset-heading h2,
.preset-heading > p:last-child {
  line-break: strict;
  text-wrap: pretty;
}

.preset-heading > p:last-child > span { display: block; }

.preset-heading > p:last-child {
  width: min(400px, 100%);
  max-width: 400px;
  margin: 16px 0 0;
  text-align: left;
}
.preset-heading h2, .preset-heading > p:last-child { text-shadow: 0 1px 3px rgba(255, 255, 255, 0.72); }

.preset-copy {
  display: grid;
  width: var(--preset-info-width);
  min-height: 256px;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: 20px;
  margin-left: var(--preset-identity-text-inset);
  transition: opacity 180ms ease 100ms, transform 180ms ease 100ms;
}

.preset-identity { min-width: 0; }
.preset-rule { display: none; }
.preset-identity-content { display: flex; min-width: 0; align-items: baseline; gap: 24px; }
.preset-identity h3 { margin: 0; font-size: 72px; font-weight: var(--weight-semibold); line-height: 1.08; }
.preset-role-actions {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  align-self: baseline;
  gap: 32px;
}
.preset-identity p {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
}

.preset-download {
  display: inline-flex;
  min-width: 0;
  min-height: var(--icon-control-size);
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0;
  border: 0;
  color: var(--ink-soft);
  background: transparent;
  font-family: var(--font-ui);
  font-size: var(--text-body-xs);
  font-weight: var(--weight-medium);
  line-height: 20px;
  text-align: center;
  white-space: nowrap;
  transition: color var(--ease-ui);
}

.preset-download svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: var(--icon-stroke-width);
}

.preset-download:hover,
.preset-download:focus-visible {
  color: var(--jade-deep);
  background: transparent;
}

.preset-download:hover { text-decoration: underline; text-underline-offset: 4px; }
.preset-download:active { color: var(--ink); background: transparent; }

.preset-narrative { display: grid; min-width: 0; gap: 16px; }
.preset-bio { width: 100%; margin: 0; color: var(--ink-soft); font-size: var(--text-body-sm); line-height: 1.72; text-wrap: pretty; }
.preset-greeting {
  --preset-bubble-surface: rgba(112, 137, 130, 0.22);
  --preset-bubble-border: rgba(83, 111, 103, 0.38);
  --preset-bubble-ink: #344a43;
  --preset-bubble-caret: #526f66;
  position: relative;
  width: 100%;
  min-width: 0;
  max-width: none;
  min-height: 0;
  margin: 0;
  padding: 10px 16px;
  border: 1px solid var(--preset-bubble-border);
  border-radius: var(--radius-surface);
  color: var(--preset-bubble-ink);
  background: var(--preset-bubble-surface);
  box-shadow: 0 6px 14px rgba(55, 65, 58, 0.06);
  font-size: var(--text-body-xs);
  line-height: 1.65;
  overflow-wrap: anywhere;
  backdrop-filter: blur(8px);
  transition: color var(--ease-ui), background-color var(--ease-ui), border-color var(--ease-ui);
}
.preset-greeting-caret {
  display: none;
  width: 1px;
  height: 1.15em;
  margin-left: 2px;
  vertical-align: -0.14em;
  background: var(--preset-bubble-caret);
  animation: preset-caret-blink 720ms steps(1, end) infinite;
}
.preset-greeting.is-typing .preset-greeting-caret { display: inline-block; }

@keyframes preset-caret-blink {
  0%, 46% { opacity: 1; }
  47%, 100% { opacity: 0; }
}

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

.preset-tabs {
  display: grid;
  width: var(--preset-info-width);
  grid-column: 1;
  grid-row: 2;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-self: start;
  margin-top: 64px;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  overflow: visible;
}

.preset-tabs button {
  position: relative;
  min-height: 52px;
  padding: 14px 8px;
  border: 0;
  color: var(--ink-soft);
  background: transparent;
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: var(--text-body-sm);
  line-height: var(--leading-compact);
  font-weight: var(--weight-medium);
  transition: color var(--ease-ui), background-color var(--ease-ui), box-shadow var(--ease-ui), font-weight var(--ease-ui);
}

.preset-tabs button::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 40px;
  height: 2px;
  background: var(--jade);
  opacity: 0;
  transform: translateX(-50%) scaleX(0.5);
  transform-origin: center;
  transition: opacity var(--ease-ui), transform var(--ease-ui);
}

.preset-tabs button + button { border-left: 0; }
.preset-tabs button:hover { color: var(--jade-deep); background: transparent; }
.preset-tabs button:focus-visible { color: var(--jade-deep); outline-color: var(--focus-ring-color); outline-offset: -3px; box-shadow: none; }
.preset-tabs button:active { background: var(--surface-hover-subtle); }
.preset-tabs button[aria-selected="true"] { color: var(--ink); background: var(--surface-hover-subtle); font-weight: var(--weight-semibold); }
.preset-tabs button[aria-selected="true"]::after { opacity: 0.88; transform: translateX(-50%) scaleX(1); }

.presets.is-preset-switching .preset-image { opacity: 0.46; }
.presets.is-preset-switching .preset-copy { opacity: 0.5; transform: translateY(4px); transition-delay: 0ms; }

@media (min-width: 1181px) and (max-width: 1599px) {
  :root { --header-h: 56px; }

  .brand img { height: 32px; }
  .site-nav { gap: 24px; }
  .header-actions { gap: 16px; }
  .site-nav a, .header-actions a { min-height: 40px; font-size: 16px; }

  .hero-main { --hero-support-width: 548px; padding-top: calc(var(--header-h) + 120px); }
  .hero h1 { font-size: 52px; }
  .hero-lede { min-height: 1.7em; margin-top: 16px; font-size: 16px; }
  .hero-features { margin-top: 24px; }
  .hero-feature { min-height: 136px; padding: 24px 16px; }
  .hero-feature:nth-child(2) { padding-left: 24px; }
  .hero-feature:nth-child(3) { padding-left: 48px; }
  .hero-feature h2 { font-size: 18px; }
  .hero-feature p { margin-top: 8px; font-size: 15px; }

  .download-panel { margin-top: 40px; }
  .primary-action { height: 56px; font-size: 16px; }
  .download-knowledge { height: 56px; font-size: 14px; }
  .download-mark, .download-mark svg { width: 24px; height: 24px; }
  .download-mark { flex-basis: 24px; }
  .download-choice { min-height: 44px; font-size: 13px; }
  .download-switch { min-height: 44px; }
}

@media (min-width: 1800px) and (min-height: 1000px) {
  .hero-scene {
    inset: 0;
    background-position: center;
    background-size: cover;
  }

  .hero-main {
    --hero-copy-width: 640px;
    --hero-support-width: 616px;
    grid-template-columns: minmax(0, 640px) minmax(0, 1fr);
    padding-top: calc(var(--header-h) + 200px);
  }

  .hero h1 { max-width: 640px; font-size: 72px; }
  .hero-lede { min-height: 1.7em; font-size: 18px; }
  .hero-feature { min-height: 158px; padding-inline: 10px; }
  .hero-feature:nth-child(2) { padding-left: 26px; }
  .hero-feature:nth-child(3) { padding-left: 50px; }
  .hero-feature h2 { font-size: 20px; }
  .hero-feature p { font-size: 16px; }
  .primary-action { height: 64px; font-size: 18px; }

  .preset-layout {
    --preset-info-width: 680px;
    --preset-identity-text-inset: 0px;
    column-gap: 80px;
  }

  .preset-layout.content-width { width: min(2240px, calc(100% - 160px)); }

  .preset-info-cluster {
    width: var(--preset-info-width);
    justify-content: flex-start;
    gap: 200px;
    padding-top: 48px;
    transform: none;
  }

  .preset-heading {
    width: min(656px, calc(100% - var(--preset-identity-text-inset)));
    transform: translateY(72px);
  }
  .preset-heading h2 { font-size: 48px; }
  .preset-heading > p:last-child { width: min(480px, 100%); max-width: 480px; font-size: 18px; }

  .preset-copy {
    width: var(--preset-info-width);
    min-height: 288px;
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .preset-identity h3 { font-size: 88px; }
  .preset-identity p { font-size: 24px; }
  .preset-bio { font-size: 16px; line-height: 1.75; }
  .preset-greeting { padding: 14px 18px; font-size: 16px; }
  .preset-tabs {
    position: relative;
    top: auto;
    left: auto;
    width: var(--preset-info-width);
    grid-column: 1;
    grid-row: 2;
    margin-top: 72px;
  }
}

@media (min-width: 961px) and (max-height: 799px) {
  .preset-info-cluster { gap: 160px; }
}

/* Use cases */
.use-cases,
.case-video-dialog { --case-video-aspect: 55 / 42; }

.use-cases { background: var(--page-surface); }
.use-cases .section-content { padding: 72px 0; }

.case-showcase {
  display: grid;
  grid-template-columns: minmax(0, 42fr) minmax(0, 58fr);
  gap: 48px;
  margin-top: 48px;
  align-items: start;
}

.case-tabs {
  display: flex;
  min-width: 0;
  flex-direction: column;
  margin: 0;
  font-family: var(--font-ui);
}

.case-tabs button {
  display: flex;
  min-height: 320px;
  flex-direction: column;
  justify-content: center;
  padding: 56px 16px;
  border: 0;
  border-radius: 0;
  color: var(--ink-soft);
  background: transparent;
  text-align: left;
  cursor: pointer;
  opacity: 0.32;
  transition: color 360ms ease, opacity 420ms ease, transform 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

.case-tabs button:hover { opacity: 0.66; }
.case-tabs button:focus-visible { color: var(--ink); opacity: 1; }
.case-tabs button[aria-selected="true"] { color: var(--ink); opacity: 1; transform: translateX(8px); }
.case-tab-title { display: block; margin-top: 16px; font-family: var(--font-heading); font-size: 28px; font-weight: var(--weight-semibold); line-height: var(--leading-heading); text-wrap: balance; }
.case-tab-description { display: block; margin-top: 16px; color: var(--ink-soft); font-family: var(--font-body); font-size: var(--text-body-md); line-height: 1.7; }
.case-tab-description code,
.case-tab-description strong { color: var(--jade-deep); font-family: var(--font-mono); font-size: 0.94em; font-weight: var(--weight-semibold); }
.case-command { display: block; margin-top: 24px; padding: 16px 0 16px 16px; border-left: 2px solid var(--jade); color: var(--jade-deep); background: rgba(82, 104, 84, 0.045); }
.case-command code { font-family: var(--font-mono); font-size: var(--text-body-sm); line-height: var(--leading-body); white-space: normal; }

.case-panels { position: sticky; top: calc(var(--header-h) + 48px); min-width: 0; min-height: 0; }
.case-panels.is-switching .case-workbench { opacity: 0.34; transform: translateY(6px); }
.case-panels.is-entering .case-workbench:not([hidden]) { animation: case-panel-enter 240ms cubic-bezier(0.22, 1, 0.36, 1) both; }

.case-workbench {
  min-height: 0;
  aspect-ratio: var(--case-video-aspect);
  overflow: hidden;
  border: 1px solid rgba(82, 104, 84, 0.18);
  border-radius: var(--radius-surface);
  background: #fff;
  box-shadow: 0 14px 34px rgba(61, 55, 44, 0.08);
  transition: opacity 160ms ease, transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.case-index { color: var(--gold-text); font-family: var(--font-ui); font-size: var(--text-micro); font-weight: var(--weight-semibold); font-variant-numeric: tabular-nums; }
.case-media {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 0;
  aspect-ratio: var(--case-video-aspect);
  place-items: center;
  overflow: hidden;
  border-radius: inherit;
  background: #fff;
}
.case-video-trigger {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: var(--case-video-aspect);
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: inherit;
  color: #fff;
  background: #fff;
  cursor: pointer;
}
.case-video-trigger::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(26, 29, 25, 0.02) 0 20%, rgba(26, 29, 25, 0.11) 100%);
  opacity: 0.42;
  transition: opacity 180ms ease;
}
.case-video-trigger img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  object-fit: cover;
  object-position: center;
  transition: transform 360ms cubic-bezier(0.22, 1, 0.36, 1);
}
.case-video-trigger--edge-crop {
  border-radius: var(--radius-surface);
}
.case-video-trigger--edge-crop img {
  width: calc(100% + 6px);
  height: calc(100% + 6px);
  max-width: none;
  margin: -3px;
  border-radius: var(--radius-surface);
}
.case-play-button {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  width: 80px;
  height: 80px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 50%;
  color: #fff;
  background: rgba(37, 40, 34, 0.84);
  box-shadow: 0 12px 30px rgba(31, 35, 29, 0.2);
  transform: translate(-50%, -50%);
  transition: background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  backdrop-filter: blur(8px);
}
.case-play-button svg { width: 32px; height: 32px; fill: currentColor; transform: translateX(2px); }
.case-video-trigger:hover::after { opacity: 0.12; }
.case-video-trigger:hover img { transform: scale(1.012); }
.case-video-trigger:hover .case-play-button {
  background: rgba(61, 81, 64, 0.94);
  box-shadow: 0 14px 34px rgba(31, 35, 29, 0.26);
  transform: translate(-50%, -50%) scale(1.04);
}
.case-video-trigger:active .case-play-button { transform: translate(-50%, -50%) scale(0.98); }
.case-video-trigger:focus-visible { z-index: 1; outline: 2px solid var(--jade); outline-offset: -4px; }

.case-video-dialog {
  width: min(1180px, calc(100vw - 64px), calc(130.952vh - 83.81px));
  max-width: none;
  max-height: calc(100vh - 64px);
  aspect-ratio: var(--case-video-aspect);
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: var(--radius-surface);
  background: transparent;
}
.case-video-dialog[open] { animation: case-video-dialog-enter 180ms cubic-bezier(0.22, 1, 0.36, 1) both; }
.case-video-dialog.is-closing { animation: case-video-dialog-leave 150ms ease both; }
.case-video-dialog::backdrop { background: rgba(25, 26, 23, 0.68); backdrop-filter: blur(6px); }
.case-video-dialog-shell {
  position: relative;
  width: 100%;
  height: 100%;
  aspect-ratio: var(--case-video-aspect);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: inherit;
  background: #11120f;
  box-shadow: 0 24px 64px rgba(23, 24, 21, 0.34);
}
.case-video-dialog video {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: var(--case-video-aspect);
  border-radius: inherit;
  background: #11120f;
  object-fit: cover;
}
.case-video-close {
  position: absolute;
  z-index: 3;
  top: 12px;
  right: 12px;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: var(--radius-icon);
  color: #fff;
  background: rgba(24, 26, 22, 0.72);
  font-family: var(--font-body);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease;
  backdrop-filter: blur(8px);
}
.case-video-close:hover { border-color: rgba(255, 255, 255, 0.62); background: rgba(61, 81, 64, 0.94); }
.case-video-close:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
/* Scenarios */
.scenarios { background: var(--page-surface); }
.scenarios .section-content { min-height: 0; padding: 72px 0; }
.scenarios .section-heading { max-width: 760px; }

.scenario-stream {
  position: relative;
  width: min(960px, 100%);
  margin: 48px auto 0;
}

.scenario-stream-scroll {
  height: auto;
  padding: 0;
  overflow: visible;
}

.scenario-wall-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.scenario-wall-grid.is-masonry { display: block; }
.scenario-wall-grid.is-masonry .scenario-card { position: absolute; }

.scenario-card {
  position: relative;
  isolation: isolate;
  display: flex;
  width: 100%;
  height: 352px;
  flex-direction: column;
  align-items: flex-start;
  margin: 0;
  padding: 24px;
  overflow: hidden;
  break-inside: avoid;
  page-break-inside: avoid;
  border: 1px solid var(--interactive-border);
  border-radius: var(--radius-card);
  color: var(--ink);
  background: var(--page-surface);
  box-shadow: 0 2px 8px rgba(55, 51, 43, 0.06);
  text-align: left;
  transition: transform var(--ease-ui), box-shadow var(--ease-ui), border-color var(--ease-ui), background-color var(--ease-ui);
}

.scenario-card:nth-child(1) { height: 368px; }
.scenario-card:nth-child(2) { height: 392px; }
.scenario-card:nth-child(3) { height: 344px; }
.scenario-card:nth-child(4) { height: 368px; }
.scenario-card:nth-child(5) { height: 352px; }
.scenario-card:nth-child(6) { height: 368px; }
.scenario-card:nth-child(7) { height: 392px; }
.scenario-card:nth-child(8) { height: 344px; }
.scenario-card:nth-child(9) { height: 400px; }
.scenario-card:nth-child(10) { height: 392px; }

.scenario-cover {
  position: absolute;
  z-index: 0;
  right: 0;
  bottom: 0;
  left: 0;
  height: 58%;
  overflow: hidden;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  pointer-events: none;
  transform: scale(1.001);
  transform-origin: center bottom;
  transition: opacity 180ms ease, transform 420ms cubic-bezier(0.22, 1, 0.36, 1), filter 180ms ease;
}

.scenario-cover--image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--page-surface) 0%, rgba(253, 252, 249, 0.88) 12%, rgba(253, 252, 249, 0.22) 42%, rgba(253, 252, 249, 0) 68%);
}

.scenario-cover--image img {
  width: 100%;
  height: 100%;
  filter: saturate(0.68) contrast(0.92) brightness(1.04);
  object-fit: cover;
}

.scenario-card[data-scenario="war-room"] .scenario-cover { height: 54%; }
.scenario-card[data-scenario="war-room"] .scenario-cover img { object-position: 50% 62%; }
.scenario-card[data-scenario="soul-distill"] .scenario-cover { height: 64%; }
.scenario-card[data-scenario="soul-distill"] .scenario-cover img { object-position: 58% 58%; }
.scenario-card[data-scenario="scheduled-story"] .scenario-cover img { object-position: 50% 58%; }
.scenario-card[data-scenario="tiger-eye"] .scenario-cover img { object-position: 58% 58%; }
.scenario-card[data-scenario="public-tunnel"] .scenario-cover img { object-position: 62% 58%; }

.scenario-card--text {
  background: var(--page-surface-muted);
}

.scenario-card--text[data-scenario="skill-audit"],
.scenario-card--text[data-scenario="cli-orchestration"] {
  background: rgba(219, 224, 214, 0.34);
}

.scenario-card--text[data-scenario="version-restore"],
.scenario-card--text[data-scenario="local-security"] {
  background: rgba(244, 240, 231, 0.7);
}

.scenario-tag {
  position: relative;
  z-index: 2;
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  margin: 0;
  padding: 3px 8px;
  border: 1px solid rgba(82, 104, 84, 0.2);
  border-radius: var(--radius-control);
  color: var(--gold-text);
  background: rgba(253, 252, 249, 0.78);
  font-family: var(--font-ui);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-compact);
  backdrop-filter: blur(6px);
  transition: opacity 150ms ease, transform var(--ease-out);
}

.scenario-card-title {
  position: relative;
  z-index: 2;
  max-width: 100%;
  margin: 16px 0 0;
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: var(--weight-semibold);
  line-height: 1.4;
  text-wrap: pretty;
  transition: opacity 150ms ease, transform var(--ease-out);
}

.scenario-card[data-scenario="soul-distill"] .scenario-card-title {
  max-width: 100%;
  margin-top: 16px;
}

.scenario-card[data-scenario="thought-to-order"] .scenario-card-title {
  max-width: 100%;
}

.scenario-card[data-scenario="cli-orchestration"] .scenario-card-title {
  padding: 0;
}

.scenario-card--text .scenario-card-title {
  max-width: 100%;
  margin: auto 0;
  font-size: 29px;
  line-height: 1.36;
}

.scenario-card--text[data-scenario="thought-to-order"] .scenario-card-title,
.scenario-card--text[data-scenario="cli-orchestration"] .scenario-card-title {
  font-size: 27px;
}

.scenario-card--text[data-scenario="thought-to-order"] .scenario-card-title {
  margin: auto 0 32px;
}

.scenario-card--text[data-scenario="cli-orchestration"] .scenario-card-title {
  margin: auto 0 8px;
}

.scenario-card--text[data-scenario="local-security"] .scenario-card-title {
  font-size: 32px;
}

.scenario-reveal {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: flex;
  width: auto;
  min-height: 0;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  background: rgba(253, 252, 249, 0.97);
  transform: translateY(8px);
  transition: opacity 160ms ease, transform var(--ease-out);
}

.scenario-solution-label,
.scenario-dialog-solution-label,
.scenario-dialog-case > p {
  margin: 0;
  color: var(--jade-deep);
  font-family: var(--font-ui);
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-compact);
}

.scenario-solution {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-body-xs);
  line-height: 1.62;
  text-wrap: pretty;
}

.scenario-solution code {
  color: var(--jade-deep);
  font-size: 0.94em;
}

.scenario-demo {
  display: inline-flex;
  width: max-content;
  min-height: 40px;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding: 0 0 2px;
  border: 0;
  border-bottom: 1px solid rgba(61, 81, 64, 0.4);
  border-radius: 0;
  color: var(--jade-deep);
  background: transparent;
  box-shadow: none;
  font-size: var(--text-body-sm);
  font-weight: var(--weight-semibold);
  line-height: 1;
  cursor: pointer;
  transition: border-color var(--ease-ui), color var(--ease-ui), transform var(--ease-ui);
}

.scenario-demo span { font-family: var(--font-mono); font-size: var(--text-body-xs); transition: transform var(--ease-ui); }
.scenario-demo:hover { border-bottom-color: var(--jade-deep); color: var(--ink); }
.scenario-demo:focus-visible { border-bottom-color: transparent; }
.scenario-demo:hover span { transform: translate(2px, -2px); }
.scenario-demo:active { transform: translateY(1px); }

.scenario-card:hover,
.scenario-card:focus-within {
  border-color: var(--interactive-border-hover);
  box-shadow: var(--shadow-interactive-hover);
  transform: translateY(-2px);
}

.scenario-card:hover > .scenario-cover,
.scenario-card:focus-within > .scenario-cover {
  opacity: 0;
  filter: saturate(0.84);
  transform: scale(1.035);
}

.scenario-card:hover > .scenario-tag,
.scenario-card:hover > .scenario-card-title,
.scenario-card:focus-within > .scenario-tag,
.scenario-card:focus-within > .scenario-card-title { opacity: 0; transform: translateY(-6px); }
.scenario-card:hover .scenario-reveal,
.scenario-card:focus-within .scenario-reveal { opacity: 1; pointer-events: auto; transform: translateY(0); }
.scenario-card:has(.scenario-demo:active) { box-shadow: var(--shadow-control); transform: translateY(0); }

.scenario-closing {
  margin: 48px 0 0;
  color: var(--ink);
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
  text-align: center;
}

/* News */
.news {
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  background: var(--page-surface);
}

.news .news-content {
  display: flex;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
  flex-direction: column;
  justify-content: center;
  padding: 80px 0 96px;
}

.news-grid {
  display: grid;
  width: 100%;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.news-card {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 368px;
  grid-template-rows: auto minmax(120px, 1fr);
  overflow: hidden;
  border: 1px solid var(--interactive-border);
  border-radius: var(--radius-card);
  color: var(--ink);
  background: var(--page-surface-muted);
  box-shadow: var(--shadow-control);
  transition: border-color var(--ease-ui), box-shadow var(--ease-ui), transform var(--ease-ui);
}

.news-card:hover,
.news-card:focus-visible {
  border-color: var(--interactive-border-hover);
  box-shadow: var(--shadow-interactive-hover);
  transform: translateY(-2px);
}

.news-card:active { box-shadow: var(--shadow-control); transform: translateY(0); }

.news-cover {
  position: relative;
  isolation: isolate;
  display: flex;
  box-sizing: border-box;
  width: 100%;
  aspect-ratio: 3 / 2;
  min-height: 248px;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  overflow: hidden;
  background: var(--page-surface-muted);
}

.news-cover::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 0;
  height: 58%;
  pointer-events: none;
  background: linear-gradient(
    to top,
    rgba(17, 20, 17, 0.78) 0%,
    rgba(17, 20, 17, 0.4) 52%,
    rgba(17, 20, 17, 0) 100%
  );
}

.news-cover-image {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1), filter var(--ease-ui);
}

.news-cover h2,
.news-cover h3 {
  position: relative;
  z-index: 1;
  margin: 0;
  width: 100%;
  max-width: 100%;
  color: var(--page-surface);
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
  text-shadow: 0 2px 10px rgba(17, 20, 17, 0.42);
}

.news-card:hover .news-cover-image,
.news-card:focus-visible .news-cover-image {
  filter: saturate(1.04) contrast(1.02);
  transform: scale(1.025);
}

.news-card-body {
  display: grid;
  min-height: 120px;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 16px;
  padding: 20px 24px 16px;
  background: rgba(253, 252, 249, 0.96);
}

.news-card-body p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-body-sm);
  line-height: 1.62;
  text-wrap: pretty;
}

.news-card-body p strong,
.news-detail-lede strong {
  color: var(--ink);
  font-weight: var(--weight-semibold);
}

.news-card-body time {
  justify-self: end;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: var(--text-caption);
  font-variant-numeric: tabular-nums;
  line-height: var(--leading-compact);
}

/* News archive and detail pages */
.news-archive-main {
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
}

.news-archive {
  padding: 72px 0 112px;
}

.news-archive-grid {
  align-items: stretch;
}

.news-detail-page .site-header:not(.is-scrolled) {
  border-bottom-color: var(--line-soft);
  background: rgba(250, 248, 242, 0.9);
  box-shadow: 0 4px 18px rgba(48, 44, 35, 0.04);
  backdrop-filter: blur(14px);
}

.news-detail-main {
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100svh - var(--header-h));
}

.news-detail {
  padding: 72px 0 112px;
}

.news-detail-back {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: var(--text-label);
  font-weight: var(--weight-medium);
  transition: color var(--ease-ui), transform var(--ease-ui);
}

.news-detail-back:hover,
.news-detail-back:focus-visible { color: var(--jade-deep); transform: translateX(-2px); }
.news-detail-back:active { transform: translateX(0); }

.news-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 96px;
  align-items: start;
  margin-top: 72px;
}

.news-detail-heading { position: relative; min-width: 0; }

.news-detail-heading > strong {
  display: block;
  margin-bottom: 24px;
  color: rgba(61, 81, 64, 0.14);
  font-family: var(--font-heading);
  font-size: 104px;
  font-weight: var(--weight-semibold);
  line-height: 0.9;
  letter-spacing: 0;
}

.news-detail-heading > .news-detail-promo-title {
  max-width: 680px;
  margin: 0 0 24px;
  color: var(--ink);
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: var(--weight-semibold);
  line-height: 1.25;
  text-wrap: balance;
}

.news-detail-heading time {
  display: block;
  margin-bottom: 16px;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: var(--text-caption);
  font-variant-numeric: tabular-nums;
  line-height: var(--leading-compact);
}

.news-detail-heading h1 {
  max-width: 680px;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
  text-wrap: balance;
}

.news-detail-lede {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: var(--text-body-lg);
  line-height: var(--leading-body);
  text-wrap: pretty;
}

.news-detail-panel {
  min-width: 0;
  padding-top: 8px;
}

.news-detail-panel h2 {
  margin: 0 0 24px;
  font-size: var(--text-card-title);
  line-height: var(--leading-heading);
}

.news-detail-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
}

.news-detail-list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink);
  font-size: var(--text-body);
  line-height: var(--leading-body);
}

.invite-social-panel {
  width: 100%;
}

.invite-social-qr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.invite-social-qr {
  display: flex;
  min-width: 0;
  margin: 0;
  padding: 16px 12px;
  border: 1px solid rgba(82, 104, 84, 0.12);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, 0.58);
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.invite-social-code {
  width: 100%;
  max-width: 160px;
}

.invite-social-code img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  margin: 0 auto;
  border-radius: var(--radius-card);
  background: var(--page-surface);
}

.invite-social-qr figcaption {
  margin-top: 16px;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: var(--text-body-xs);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-compact);
  text-wrap: balance;
}

.invite-benefits {
  margin-top: 112px;
}

.invite-benefits-heading {
  max-width: 720px;
}

.invite-benefits-heading h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
  text-wrap: balance;
}

.invite-benefits-heading p {
  margin: 16px 0 0;
  color: var(--ink-soft);
  font-size: var(--text-body-lg);
  line-height: var(--leading-body);
}

.invite-benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.invite-benefit {
  display: flex;
  min-width: 0;
  min-height: 216px;
  flex-direction: column;
  padding: 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-card);
  background: rgba(253, 252, 249, 0.72);
}

.invite-benefit-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.invite-benefit-meta svg {
  width: var(--icon-lg);
  height: var(--icon-lg);
  fill: none;
  stroke: var(--jade);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: var(--icon-stroke-width);
}

.invite-benefit h3 {
  margin: 32px 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-card-title);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
  text-wrap: balance;
}

.invite-benefit p {
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: var(--text-body-sm);
  line-height: 1.7;
  text-wrap: pretty;
}

@media (max-width: 960px) {
  .news-archive { padding: 56px 0 88px; }
  .news-detail { padding: 56px 0 88px; }
  .news-detail-layout { grid-template-columns: 1fr; gap: 56px; margin-top: 48px; }
  .news-detail-heading > strong { font-size: 80px; }
  .invite-benefits { margin-top: 88px; }
  .invite-benefits-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .news-archive { padding: 40px 0 72px; }
  .news-detail { padding: 40px 0 72px; }
  .news-detail-layout { gap: 40px; margin-top: 32px; }
  .news-detail-heading > strong { margin-bottom: 16px; font-size: 64px; }
  .news-detail-heading > .news-detail-promo-title { font-size: 36px; }
  .news-detail-heading h1 { font-size: 32px; }
  .invite-social-qr-grid { gap: 12px; }
  .invite-social-qr { padding: 12px 8px; }
  .invite-social-code { max-width: 144px; }
  .invite-social-qr figcaption { margin-top: 12px; }
  .invite-benefits { margin-top: 64px; }
  .invite-benefits-heading h2 { font-size: 28px; }
  .invite-benefits-grid { grid-template-columns: 1fr; gap: 16px; margin-top: 32px; }
  .invite-benefit { min-height: auto; padding: 24px; }
}

.scenario-dialog {
  width: min(1180px, calc(100vw - 48px));
  max-width: none;
  max-height: calc(100vh - 48px);
  padding: 0;
  border: 0;
  color: var(--ink);
  background: transparent;
  overflow: visible;
}

.scenario-dialog[open] { animation: scenario-dialog-enter 180ms cubic-bezier(0.22, 1, 0.36, 1) both; }
.scenario-dialog.is-closing { animation: scenario-dialog-leave 160ms ease both; }
.scenario-dialog::backdrop { background: rgba(25, 26, 23, 0.56); backdrop-filter: blur(4px); animation: scenario-backdrop-enter 180ms ease both; }

.scenario-dialog-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  gap: 40px;
  max-height: calc(100vh - 48px);
  padding: 48px;
  overflow: auto;
  border: 1px solid var(--gold);
  border-radius: var(--radius-surface);
  background: var(--page-surface);
  box-shadow: 0 28px 80px rgba(24, 24, 21, 0.34);
}

.dialog-close {
  position: absolute;
  z-index: 3;
  top: 16px;
  right: 16px;
  display: grid;
  width: var(--icon-control-size);
  height: var(--icon-control-size);
  place-items: center;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-icon);
  color: var(--ink-soft);
  background: transparent;
  box-shadow: none;
  font-family: var(--font-ui);
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  cursor: pointer;
  transition: color var(--ease-ui), border-color var(--ease-ui), background-color var(--ease-ui), transform var(--ease-ui);
}

.dialog-close:hover { border-color: var(--interactive-border); color: var(--ink); background: var(--surface-hover); box-shadow: var(--shadow-interactive); }
.dialog-close:active { background: var(--surface-pressed); transform: translateY(1px); }

.scenario-dialog-copy { min-width: 0; align-self: center; }
.scenario-dialog-tag { margin: 0 48px 16px 0; color: var(--gold-text); font-family: var(--font-ui); font-size: var(--text-body-lg); font-weight: var(--weight-semibold); line-height: var(--leading-compact); }
.scenario-dialog-copy h2 { max-width: 670px; margin: 0; font-size: 32px; line-height: 1.45; text-wrap: balance; }
.scenario-dialog-solution-label { margin-top: 32px; }
.scenario-dialog-solution { max-width: 680px; margin: 8px 0 0; color: var(--ink-soft); font-size: var(--text-body); line-height: var(--leading-body); text-wrap: pretty; }

.scenario-dialog-case {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}

.scenario-dialog-case h3 { margin: 8px 0 0; color: var(--ink); font-size: 20px; line-height: var(--leading-heading); text-wrap: balance; }
.scenario-dialog-case ol { display: grid; gap: 12px; margin: 20px 0 0; padding: 0; list-style: none; counter-reset: scenario-step; }
.scenario-dialog-case li {
  position: relative;
  min-height: 24px;
  padding-left: 32px;
  color: var(--ink-soft);
  font-size: var(--text-body-sm);
  line-height: var(--leading-body);
  text-wrap: pretty;
  counter-increment: scenario-step;
}

.scenario-dialog-case li::before {
  content: counter(scenario-step, decimal-leading-zero);
  position: absolute;
  top: 1px;
  left: 0;
  color: var(--gold-text);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: var(--weight-semibold);
  line-height: 1.7;
}

.scenario-dialog-visual {
  position: sticky;
  top: 0;
  display: grid;
  min-height: 360px;
  aspect-ratio: 1;
  place-items: center;
  align-self: start;
  overflow: hidden;
  border: 1px solid var(--interactive-border);
  border-radius: var(--radius-card);
  background:
    linear-gradient(rgba(82, 104, 84, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(82, 104, 84, 0.055) 1px, transparent 1px),
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(244, 240, 231, 0.72));
  background-size: 24px 24px, 24px 24px, auto;
}

.scenario-dialog-visual::before {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(181, 156, 107, 0.26);
  pointer-events: none;
}

.scenario-motion-svg { position: relative; z-index: 1; width: 100%; height: 100%; }
.motion-scene { display: none; transform-origin: center; }
.scenario-dialog-visual[data-motion="war-room"] .motion-war-room,
.scenario-dialog-visual[data-motion="soul"] .motion-soul,
.scenario-dialog-visual[data-motion="skill"] .motion-skill,
.scenario-dialog-visual[data-motion="schedule"] .motion-schedule,
.scenario-dialog-visual[data-motion="rollback"] .motion-rollback,
.scenario-dialog-visual[data-motion="command"] .motion-command,
.scenario-dialog-visual[data-motion="tiger-eye"] .motion-tiger-eye,
.scenario-dialog-visual[data-motion="tunnel"] .motion-tunnel,
.scenario-dialog-visual[data-motion="cli"] .motion-cli,
.scenario-dialog-visual[data-motion="security"] .motion-security { display: block; }

.motion-scene > * {
  stroke: var(--jade);
  stroke-width: 1.25;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.motion-scene .motion-command,
.motion-scene .motion-package,
.motion-scene .motion-calendar,
.motion-scene .motion-order,
.motion-scene .motion-browser,
.motion-scene .motion-https,
.motion-scene .motion-cli-window,
.motion-scene .motion-report,
.motion-scene .motion-vault,
.motion-scene .motion-approval-gate {
  fill: rgba(255, 255, 255, 0.56);
}

.motion-scene .motion-furnace-core,
.motion-scene .motion-evidence,
.motion-scene .motion-risk,
.motion-scene .motion-demo-dot,
.motion-scene .motion-team,
.motion-scene .motion-sage,
.motion-scene .motion-eye-pupil,
.motion-scene .motion-vault-wheel,
.motion-scene .motion-matrix-cell.cell-a {
  fill: var(--jade-pale);
}

.motion-scene .motion-soul-file,
.motion-scene .motion-summary-card,
.motion-scene .motion-story-card,
.motion-scene .motion-document,
.motion-scene .motion-matrix-cell {
  fill: rgba(255, 255, 255, 0.48);
}

.motion-scene .motion-seal,
.motion-scene .motion-clock-text,
.motion-scene .motion-https-text,
.motion-scene .motion-sage-text {
  fill: var(--jade-deep);
  stroke: none;
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: var(--weight-semibold);
  letter-spacing: 0;
}

.motion-scene .motion-seal { fill: var(--gold-text); font-size: var(--text-body-xs); }
.motion-scene .motion-cloud-boundary { stroke: var(--gold); }
.motion-scene .motion-risk { stroke: var(--gold-text); }

@media (prefers-reduced-motion: no-preference) {
  .scenario-dialog-visual[data-motion] .motion-trace,
  .scenario-dialog-visual[data-motion] .motion-tunnel-path,
  .scenario-dialog-visual[data-motion] .motion-timeline,
  .scenario-dialog-visual[data-motion] .motion-audit {
    stroke-dasharray: 240;
    stroke-dashoffset: 240;
    animation: scenario-motion-trace 3200ms ease-in-out infinite;
  }

  .scenario-dialog-visual[data-motion] .trace-b,
  .scenario-dialog-visual[data-motion] .tunnel-path-b { animation-delay: 260ms; }
  .scenario-dialog-visual[data-motion] .trace-c { animation-delay: 520ms; }
  .scenario-dialog-visual[data-motion] .trace-d { animation-delay: 780ms; }
  .scenario-dialog-visual[data-motion] .motion-evidence,
  .scenario-dialog-visual[data-motion] .motion-risk,
  .scenario-dialog-visual[data-motion] .motion-matrix-cell.cell-a,
  .scenario-dialog-visual[data-motion] .motion-team {
    animation: scenario-motion-pulse 1800ms ease-in-out infinite;
  }

  .scenario-dialog-visual[data-motion] .evidence-b,
  .scenario-dialog-visual[data-motion] .risk-b,
  .scenario-dialog-visual[data-motion] .team-b { animation-delay: 180ms; }
  .scenario-dialog-visual[data-motion] .evidence-c,
  .scenario-dialog-visual[data-motion] .risk-c,
  .scenario-dialog-visual[data-motion] .team-c { animation-delay: 360ms; }
  .scenario-dialog-visual[data-motion] .motion-furnace-core,
  .scenario-dialog-visual[data-motion] .motion-eye-pupil,
  .scenario-dialog-visual[data-motion] .motion-awake,
  .scenario-dialog-visual[data-motion] .motion-demo-dot {
    transform-origin: center;
    animation: scenario-motion-breathe 1800ms ease-in-out infinite;
  }

  .scenario-dialog-visual[data-motion] .motion-document.doc-b,
  .scenario-dialog-visual[data-motion] .motion-story-card,
  .scenario-dialog-visual[data-motion] .motion-report,
  .scenario-dialog-visual[data-motion] .motion-seal {
    transform-origin: center;
    animation: scenario-motion-arrive 3200ms cubic-bezier(0.22, 1, 0.36, 1) infinite;
  }

  .scenario-dialog-visual[data-motion="soul"] .motion-agent-eye {
    transform-box: fill-box;
    transform-origin: center;
    animation: scenario-soul-eye 3200ms cubic-bezier(0.22, 1, 0.36, 1) infinite;
  }
}

@keyframes scenario-motion-trace {
  0%, 12% { stroke-dashoffset: 240; opacity: 0.18; }
  42%, 78% { stroke-dashoffset: 0; opacity: 1; }
  100% { stroke-dashoffset: -32; opacity: 0.4; }
}

@keyframes scenario-motion-pulse {
  0%, 100% { fill: rgba(219, 224, 214, 0.4); opacity: 0.5; }
  50% { fill: var(--jade-pale); opacity: 1; }
}

@keyframes scenario-motion-breathe {
  0%, 100% { opacity: 0.55; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.08); }
}

@keyframes scenario-motion-arrive {
  0%, 22% { opacity: 0; transform: translateY(8px); }
  42%, 80% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0.65; transform: translateY(0); }
}

@keyframes scenario-soul-eye {
  0%, 36% { opacity: 0; transform: scaleY(0.05); }
  52%, 86% { opacity: 1; transform: scaleY(1); }
  100% { opacity: 0.7; transform: scaleY(1); }
}

/* Footer */
.site-footer {
  min-height: 112px;
  padding: 24px 0;
  border-top: 1px solid var(--line-soft);
  background: rgba(250, 249, 244, 0.82);
}

.footer-bar {
  display: grid;
  min-height: 64px;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  column-gap: 32px;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: var(--text-body-xs);
  line-height: var(--leading-compact);
}

.footer-contact {
  display: inline-flex;
  width: fit-content;
  min-height: 44px;
  align-items: center;
  justify-self: start;
  color: inherit;
  transition: color var(--ease-ui), opacity var(--ease-ui);
}

.footer-contact:hover,
.footer-contact:focus-visible {
  color: var(--jade-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.footer-contact:active { opacity: 0.66; }

.footer-copyright {
  margin: 0;
  text-align: center;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.footer-legal {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 12px;
  white-space: nowrap;
}

@media (max-width: 1180px) {
  .site-nav { gap: 16px; }
  .hero-main {
    --hero-copy-width: 520px;
    --hero-support-width: var(--hero-copy-width);
    grid-template-columns: minmax(0, 560px) minmax(0, 1fr);
    column-gap: 0;
  }
  .hero-feature:nth-child(2), .hero-feature:nth-child(3) { padding-left: 16px; }
  .hero-feature { min-height: 144px; padding: 28px 16px 24px; }
  .hero-feature h2 { font-size: 18px; }
  .hero-feature p { font-size: 15px; }
  .architecture-grid { grid-template-columns: 250px minmax(360px, 440px) 250px; }
  .agent-schematic { width: 100%; }
}

@media (max-width: 960px) {
  :root { --section-min: auto; --header-h: 64px; }

  .header-inner {
    position: static;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    column-gap: 12px;
  }
  .lang-switch { order: 1; }
  .nav-toggle { order: 2; }
  .brand { position: static; transform: none; }
  .site-menu { height: auto; }
  .header-actions { position: static; height: auto; }
  .nav-toggle { display: block; }
  .site-menu { position: fixed; top: var(--header-h); right: 0; left: 0; display: none; max-height: calc(100svh - var(--header-h)); grid-template-columns: 1fr; gap: 0; padding: 16px 24px 24px; overflow: auto; border-bottom: 1px solid var(--line); background: rgba(250, 248, 242, 0.98); box-shadow: var(--shadow); }
  .site-menu.open { display: grid; }
  .site-nav, .header-actions { align-items: stretch; }
  .site-nav { flex-direction: column; gap: 0; }
  .header-actions { justify-content: flex-start; gap: 24px; padding-top: 16px; border-top: 1px solid var(--line-soft); }
  .site-nav a { min-height: 52px; }
  .site-nav a::after { right: auto; bottom: 8px; left: 0; width: 0; }
  .site-nav a[aria-current="location"]::after { width: 16px; }

  .section-content { min-height: 0; padding: 64px 0; }
  .section-heading h1, .section-heading h2 { font-size: 34px; }

  .hero-main { grid-template-columns: minmax(0, 520px) minmax(0, 1fr); column-gap: 0; }
  .hero h1 { font-size: 44px; }

  .architecture-cards-left { grid-area: left; gap: 24px; }
  .architecture-cards-right { grid-area: right; }
  .agent-schematic { grid-area: figure; justify-self: center; }

  .presets { min-height: 880px; }
  .preset-layout { min-height: 840px; padding: 88px 0 40px; }



  .scenario-wall-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scenario-dialog-shell { grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; padding: 40px; }

  .news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

}

@media (max-width: 760px) {
  .content-width, .header-inner { width: min(var(--content), calc(100% - 32px)); }
  .section-content { padding: 56px 0; }
  .section-heading h1, .section-heading h2 { font-size: 30px; }
  .section-heading > p:last-child { font-size: 16px; }

  .hero {
    min-height: 100svh;
    padding: 0;
  }
  .hero-main.content-width { width: min(var(--content), calc(100% - 32px)); }
  .hero-main { display: flex; min-height: 0; flex-direction: column; align-items: flex-start; justify-content: flex-start; padding: calc(var(--header-h) + 80px) 0 24px; transform: none; }
  .hero h1 { margin: 0 0 32px; font-size: 32px; }
  .hero-lede { width: 100%; margin-top: 16px; font-size: 16px; }
  .hero-intro { width: 100%; }
  .download-panel { width: min(100%, 360px); grid-template-columns: minmax(0, 2fr) minmax(96px, 1fr); column-gap: 8px; }
  .primary-download, .download-knowledge, .download-choice { width: 100%; }
  .hero-features { inset: auto; width: 100%; grid-template-columns: 1fr; gap: 0; margin-top: 32px; transform: none; }
  .hero-feature { min-height: auto; padding: 16px 0; }
  .hero-feature:nth-child(2), .hero-feature:nth-child(3) { padding-left: 0; }
  .hero-feature + .hero-feature::before { top: 0; right: 0; bottom: auto; left: 0; width: auto; height: 1px; }
  .hero-feature h2 { font-size: 18px; }
  .hero-feature p { margin-top: 4px; font-size: 14px; }
  .hero-feature p span { display: inline; }
  .hero-feature p span + span::before { content: " · "; }
  .hero-caption { display: none; }

  .architecture .architecture-grid { grid-template-columns: 1fr; grid-template-areas: "figure" "left" "right"; margin-top: 40px; }
  .architecture-cards { gap: 16px; }
  .architecture-card, .architecture-cards-left .architecture-card { min-height: 0; }
  .architecture-card-detail {
    position: relative;
    inset: auto;
    grid-column: 1 / -1;
    max-height: none;
    margin: 8px -20px -18px;
    padding: 0;
    overflow: visible;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    visibility: visible;
    box-shadow: none;
  }
  .agent-schematic { width: min(504px, 100%); height: 448px; }
  .agent-construction { top: 0; left: 50%; inset: auto; width: min(600px, 134%); height: calc(100% - 44px); transform: translateX(-50%); }
  .agent-figure-stack { width: min(600px, 134%); }

  .presets { min-height: 900px; }
  .preset-image { inset: 0; height: 100%; object-position: center; transform: none; }
  .preset-wash { inset: 0; background: linear-gradient(180deg, rgba(255, 255, 255, 0.99) 0%, rgba(255, 255, 255, 0.96) 44%, rgba(255, 255, 255, 0.55) 65%, rgba(255, 255, 255, 0.12) 100%); }
  .preset-layout { display: flex; min-height: 868px; flex-direction: column; padding: 48px 0 24px; }
  .preset-info-cluster { width: 100%; height: auto; justify-content: flex-start; gap: 40px; transform: none; }
  .preset-copy { position: relative; top: auto; width: 100%; min-height: 0; grid-template-columns: minmax(0, 1fr); gap: 20px; margin-top: 0; margin-left: 0; }
  .preset-identity-content { flex-wrap: wrap; gap: 8px 16px; }
  .preset-role-actions { flex-wrap: wrap; gap: 8px 24px; }
  .preset-identity h3 { font-size: 56px; }
  .preset-identity p { font-size: 20px; }
  .preset-greeting { width: 100%; max-width: none; }
  .preset-tabs { position: relative; display: flex; width: 100%; grid-template-columns: none; gap: 0; margin-top: auto; margin-left: 0; overflow-x: auto; }
  .preset-tabs button { flex: 0 0 auto; min-width: 52px; }


  .case-showcase { display: block; margin-top: 40px; }
  .case-tabs { gap: 0; }
  .case-tabs button { min-height: 0; padding: 28px 0; opacity: 0.48; }
  .case-tabs button[aria-selected="true"] { opacity: 1; transform: none; }
  .case-tabs button:not([aria-selected="true"]) .case-tab-description,
  .case-tabs button:not([aria-selected="true"]) .case-command { display: none; }
  .case-tab-title { font-size: 24px; }
  .case-panels { position: relative; top: auto; min-height: 440px; margin-top: 24px; }
  .case-media, .case-video-trigger { min-height: 0; height: auto; aspect-ratio: var(--case-video-aspect); }


  .scenario-stream { max-width: 620px; }
  .scenario-stream-scroll { height: auto; padding: 0; overflow: visible; scrollbar-gutter: auto; }
  .scenario-wall-grid { grid-template-columns: 1fr; }
  .scenario-card,
  .scenario-card:nth-child(n) { height: auto; min-height: 368px; padding: 32px; }
  .scenario-cover { opacity: 0.14; }
  .scenario-card[data-scenario] .scenario-card-title { max-width: 100%; margin: 24px 0 0; }
  .scenario-reveal { position: relative; inset: auto; min-height: 200px; margin-top: auto; padding: 24px 0 0; opacity: 1; pointer-events: auto; background: transparent; transform: none; }
  .scenario-card:hover > .scenario-tag,
  .scenario-card:hover > .scenario-card-title,
  .scenario-card:focus-within > .scenario-tag,
  .scenario-card:focus-within > .scenario-card-title { opacity: 1; transform: none; }
  .scenario-dialog { width: min(760px, calc(100vw - 32px)); }
  .scenario-dialog-shell { grid-template-columns: 1fr; padding: 48px 32px 32px; }
  .scenario-dialog-visual { position: relative; top: auto; width: 100%; max-width: 360px; min-height: 0; justify-self: center; }

  .news .news-content { min-height: 0; padding: 72px 0; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card { width: min(100%, 520px); min-height: 360px; justify-self: center; }

  .footer-bar {
    min-height: 88px;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0 24px;
  }
  .footer-copyright {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: start;
    text-align: left;
    white-space: normal;
  }
}

@media (max-width: 560px) {
  .section-content { padding: 48px 0; }
  .section-heading h1, .section-heading h2 { font-size: 28px; }

  .hero { min-height: calc(100svh - 16px); }
  .hero-main { min-height: 340px; }
  .hero h1 { font-size: 30px; }
  .download-choice { margin-top: 4px; }

  .agent-schematic { height: 376px; }
  .agent-construction { width: min(520px, 140%); }
  .agent-figure-stack { width: min(520px, 140%); }
  .agent-schematic figcaption { bottom: 4px; }

  .presets { min-height: 920px; }
  .preset-layout { min-height: 888px; }
  .preset-copy { grid-template-columns: 1fr; gap: 20px; margin-top: 32px; }
  .preset-identity h3 { font-size: 52px; }
  .preset-narrative { width: min(400px, 100%); }
  .preset-greeting { width: 100%; margin-left: 0; }





  .scenario-card, .scenario-card:nth-child(n) { min-height: 400px; padding: 24px; }
  .scenario-card-title { font-size: 22px; }
  .scenario-reveal { min-height: 220px; }
  .scenario-closing { margin-top: 48px; font-size: 24px; }
  .scenario-dialog-copy h2 { font-size: 26px; }

  .site-footer { padding: 16px 0; }
}

@media (prefers-reduced-motion: no-preference) {
  .hero h1, .download-panel { animation: hero-enter 520ms ease both; }
  .hero h1 { animation-delay: 80ms; }
  .download-panel { animation-delay: 160ms; }
  .hero .hero-feature {
    animation: benefit-enter 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }
  .hero .hero-feature:nth-child(1) { animation-delay: 700ms; }
  .hero .hero-feature:nth-child(2) { animation-delay: 800ms; }
  .hero .hero-feature:nth-child(3) { animation-delay: 900ms; }
  .js.is-hero-preloading .hero h1,
  .js.is-hero-preloading .download-panel,
  .js.is-hero-preloading .hero .hero-feature {
    animation-play-state: paused;
  }
  .js .architecture[data-awakening] .construction-path {
    stroke-dashoffset: 100;
    opacity: 0;
  }
  .js .architecture[data-awakening] .construction-final,
  .js .architecture[data-awakening] .agent-figure { opacity: 0; }
  .js .architecture[data-awakening].is-wire-done .construction-final { opacity: 1; }
  .js .architecture[data-awakening] .architecture-card {
    opacity: 0;
  }
  .js .architecture[data-awakening] .architecture-cards-left .architecture-card {
    transform: translateX(16px);
  }
  .js .architecture[data-awakening] .architecture-cards-right .architecture-card {
    transform: translateX(-16px);
  }
  .js .architecture.is-awake .construction-orbit-primary,
  .js .architecture.is-awake .construction-orbit-secondary,
  .js .architecture.is-awake .construction-frame,
  .js .architecture.is-awake .construction-axis-horizontal,
  .js .architecture.is-awake .construction-axis-vertical {
    animation: construction-draw var(--architecture-reveal-duration) 0ms cubic-bezier(0.35, 0, 0.18, 1) both;
  }

  .js .architecture.is-awake .agent-figure-outline { animation: agent-frame-outline var(--architecture-reveal-duration) 0ms linear both; }
  .js .architecture.is-awake .agent-figure-closed-1 { animation: agent-frame-closed-1 var(--architecture-reveal-duration) 0ms linear both; }
  .js .architecture.is-awake .agent-figure-closed-2 { animation: agent-frame-closed-2 var(--architecture-reveal-duration) 0ms linear both; }
  .js .architecture.is-awake .agent-figure-closed-3 { animation: agent-frame-closed-3 var(--architecture-reveal-duration) 0ms linear both; }
  .js .architecture.is-awake .agent-figure-awake { animation: agent-frame-awake var(--architecture-reveal-duration) 0ms linear both; }

  .js .architecture.is-awake .architecture-cards-left .architecture-card:nth-child(1) { animation: architecture-card-enter-left var(--architecture-card-duration) 0ms cubic-bezier(0.16, 1, 0.3, 1) both; }
  .js .architecture.is-awake .architecture-cards-left .architecture-card:nth-child(2) { animation: architecture-card-enter-left var(--architecture-card-duration) 820ms cubic-bezier(0.16, 1, 0.3, 1) both; }
  .js .architecture.is-awake .architecture-cards-left .architecture-card:nth-child(3) { animation: architecture-card-enter-left var(--architecture-card-duration) 1640ms cubic-bezier(0.16, 1, 0.3, 1) both; }
  .js .architecture.is-awake .architecture-cards-right .architecture-card:nth-child(1) { animation: architecture-card-enter-right var(--architecture-card-duration) 2460ms cubic-bezier(0.16, 1, 0.3, 1) both; }
  .js .architecture.is-awake .architecture-cards-right .architecture-card:nth-child(2) { animation: architecture-card-enter-right var(--architecture-card-duration) 3280ms cubic-bezier(0.16, 1, 0.3, 1) both; }
  .js .architecture.is-awake .architecture-cards-right .architecture-card:nth-child(3) { animation: architecture-card-enter-right var(--architecture-card-duration) calc(var(--architecture-reveal-duration) - var(--architecture-card-duration)) cubic-bezier(0.16, 1, 0.3, 1) both; }

  .js .architecture.is-awake:not(.is-wire-done) .architecture-indicator {
    animation: architecture-indicator-visibility var(--indicator-duration) var(--indicator-delay) linear both;
  }

  .js .architecture.is-awake:not(.is-wire-done) .architecture-indicator-line {
    animation: architecture-indicator-draw var(--indicator-duration) var(--indicator-delay) cubic-bezier(0.22, 1, 0.36, 1) both;
  }
}

@keyframes hero-enter {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes benefit-enter {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes case-panel-enter {
  from { opacity: 0.34; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes case-video-dialog-enter {
  from { opacity: 0; transform: translateY(8px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes case-video-dialog-leave {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(6px) scale(0.99); }
}

@keyframes scenario-dialog-enter {
  from { opacity: 0; transform: translateY(8px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes scenario-dialog-leave {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(6px) scale(0.99); }
}

@keyframes scenario-backdrop-enter {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes construction-draw {
  0% { stroke-dashoffset: 100; opacity: 0; }
  7% { opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 1; }
}

@keyframes agent-frame-outline {
  0% { opacity: 0; }
  6%, 14% { opacity: 0.42; }
  23%, 100% { opacity: 0; }
}

@keyframes agent-frame-closed-1 {
  0%, 11% { opacity: 0; }
  21%, 30% { opacity: 1; }
  41%, 100% { opacity: 0; }
}

@keyframes agent-frame-closed-2 {
  0%, 29% { opacity: 0; }
  39%, 49% { opacity: 1; }
  61%, 100% { opacity: 0; }
}

@keyframes agent-frame-closed-3 {
  0%, 49% { opacity: 0; }
  59%, 78% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes agent-frame-awake {
  0%, 78% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes architecture-card-enter-left {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes architecture-card-enter-right {
  from { opacity: 0; transform: translateX(-16px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes architecture-indicator-visibility {
  0% { opacity: 0; }
  14%, 78% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes architecture-indicator-draw {
  0% { stroke-dashoffset: 1000; }
  24%, 100% { stroke-dashoffset: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .architecture .construction-path { display: none; }
  .architecture .construction-final,
  .architecture .agent-figure-awake { opacity: 1; }
  .architecture .agent-figure-outline,
  .architecture .agent-figure-closed-1,
  .architecture .agent-figure-closed-2,
  .architecture .agent-figure-closed-3 { display: none; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}