:root {
  color-scheme: light;
  --paper: #f7f0df;
  --paper-bright: #fffaf0;
  --paper-deep: #eadcbe;
  --ink: #121a32;
  --ink-soft: #4d5263;
  --navy: #111a3b;
  --navy-soft: #1d2952;
  --amethyst: #68498f;
  --amethyst-light: #b7a1d5;
  --teal: #247875;
  --teal-light: #8bd2ca;
  --gold: #ad8137;
  --gold-light: #ddbe7d;
  --line: rgba(18, 26, 50, 0.16);
  --line-light: rgba(247, 240, 223, 0.18);
  --font-display: "Kaisei Decol", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --container: 1120px;
  --container-pad: clamp(20px, 5vw, 72px);
  --section-space: clamp(104px, 12vw, 176px);
  --ease-smooth: cubic-bezier(0.28, 0, 0, 1);
  --ease-emphasized: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-micro: 180ms;
  --dur-reveal: 680ms;
  --stage-progress: 0;
}

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

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 12%, rgba(255, 255, 255, 0.78), transparent 28rem),
    var(--paper);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.18vw, 1.125rem);
  line-height: 1.85;
  letter-spacing: 0.035em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.24;
  background-image: radial-gradient(rgba(30, 27, 42, 0.24) 0.42px, transparent 0.55px);
  background-size: 5px 5px;
}

img,
picture,
svg,
canvas {
  display: block;
  max-width: 100%;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

p,
h1,
h2,
h3,
figure,
dl,
dd,
ol,
ul {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--font-display);
  font-weight: 700;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.75rem, 7vw, 6.75rem);
  line-height: 1.12;
  letter-spacing: 0.02em;
}

h2 {
  margin-bottom: 28px;
  font-size: clamp(2rem, 4.5vw, 4.25rem);
  line-height: 1.2;
  letter-spacing: 0.025em;
}

h3 {
  font-family: var(--font-body);
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  line-height: 1.35;
  letter-spacing: 0.02em;
}

.heading-chunk {
  display: inline-block;
  white-space: nowrap;
}

.keep-together {
  display: inline-block;
  white-space: nowrap;
}

strong {
  font-weight: 700;
}

::selection {
  color: var(--paper-bright);
  background: var(--amethyst);
}

:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--paper-bright);
  background: var(--navy);
  border-radius: 4px;
  transform: translateY(-160%);
  transition: transform var(--dur-micro) ease;
}

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

.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 80;
  height: 3px;
  pointer-events: none;
  background: rgba(255, 250, 240, 0.24);
}

.reading-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold-light), var(--amethyst-light), var(--teal-light));
  transform: scaleX(0);
  transform-origin: left center;
}

.site-header {
  position: fixed;
  top: 3px;
  left: 0;
  right: 0;
  z-index: 70;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 68px;
  padding: 0 clamp(20px, 4vw, 56px);
  border-bottom: 1px solid rgba(18, 26, 50, 0.09);
  background: rgba(255, 250, 240, 0.82);
  backdrop-filter: blur(16px) saturate(1.08);
  -webkit-backdrop-filter: blur(16px) saturate(1.08);
}

.brand,
.header-action,
.site-nav a {
  text-decoration: none;
}

.brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.brand-star {
  color: var(--gold);
  font-size: 1rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.8vw, 38px);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.site-nav a,
.header-action {
  position: relative;
  display: inline-grid;
  place-items: center;
  min-height: 44px;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 8px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--amethyst);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-micro) ease;
}

.header-action {
  justify-self: end;
  min-width: 126px;
  padding: 0 18px;
  color: var(--paper-bright);
  background: var(--navy);
  border: 1px solid var(--navy);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.motion-layer {
  position: fixed;
  inset: 0;
  z-index: 15;
  overflow: clip;
  pointer-events: none;
}

#magic-particles {
  width: 100%;
  height: 100%;
}

.guide {
  --guide-x: calc(100vw - 220px);
  --guide-y: 58vh;
  --guide-rotate: 0deg;
  --guide-opacity: 0;
  --guide-scale: 1;
  --guide-size: clamp(132px, 13vw, 196px);
  position: absolute;
  top: 0;
  left: 0;
  width: var(--guide-size);
  aspect-ratio: 4 / 5;
  opacity: var(--guide-opacity);
  transform: translate3d(var(--guide-x), var(--guide-y), 0) rotate(var(--guide-rotate)) scale(var(--guide-scale));
  transform-origin: 50% 60%;
  will-change: transform, opacity;
}

.guide-facing {
  position: relative;
  width: 100%;
  height: 100%;
  transform: scaleX(var(--guide-facing, 1));
  transform-origin: center;
}

.guide-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 20px 20px rgba(13, 19, 45, 0.2));
}

.guide-image-flight {
  opacity: calc(1 - var(--guide-arrival, 0));
}

.guide-image-arrival {
  opacity: var(--guide-arrival, 0);
  transform: scale(1.2);
  transform-origin: 50% 62%;
}

.guide-small-star {
  position: absolute;
  top: 45%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  color: var(--paper-bright);
  background: var(--amethyst);
  border: 1px solid var(--gold-light);
  border-radius: 50%;
  box-shadow: 0 0 24px rgba(140, 109, 192, 0.6);
  opacity: 0;
  transform: translate(-50%, -50%);
}

.guide.is-star .guide-image {
  opacity: 0;
}

.guide.is-star .guide-small-star {
  opacity: 1;
}

.site-container {
  position: relative;
  z-index: 20;
  width: min(calc(100% - (var(--container-pad) * 2)), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: var(--section-space);
}

.section-header {
  max-width: 810px;
  margin-bottom: clamp(56px, 7vw, 96px);
}

.section-header > p:last-child {
  max-width: 700px;
  margin-bottom: 0;
  color: var(--ink-soft);
}

.section-index,
.eyebrow {
  margin-bottom: 22px;
  color: var(--ink-soft);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.fact-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--amethyst);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.fact-label::before {
  width: 32px;
  height: 1px;
  content: "";
  background: currentColor;
}

.fact-label-dark {
  color: var(--gold-light);
}

.reveal {
  transition:
    opacity var(--dur-reveal) var(--ease-smooth),
    transform var(--dur-reveal) var(--ease-smooth);
}

html.js .reveal {
  opacity: 0;
  transform: translateY(28px);
}

html.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

html.motion-failed-safe .reveal {
  opacity: 1;
  transform: none;
}

.video-button {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 56px;
  padding: 0 24px 0 28px;
  overflow: hidden;
  color: var(--paper-bright);
  background: var(--navy);
  border: 1px solid rgba(213, 184, 116, 0.72);
  border-radius: 999px;
  box-shadow: 0 14px 32px rgba(17, 26, 59, 0.18);
  cursor: pointer;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition:
    transform var(--dur-micro) ease,
    box-shadow var(--dur-micro) ease,
    background-color var(--dur-micro) ease;
}

.video-button::before {
  position: absolute;
  inset: -1px;
  z-index: -1;
  content: "";
  background: linear-gradient(110deg, transparent 25%, rgba(255, 255, 255, 0.28) 46%, transparent 64%);
  transform: translateX(-130%);
}

.video-button.is-primed::before {
  animation: button-shimmer 1s var(--ease-emphasized) 1;
}

.button-spark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  color: var(--navy);
  background: var(--gold-light);
  border-radius: 50%;
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  font-size: 0.88rem;
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: clip;
  padding-top: 68px;
  background: var(--paper-bright);
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transform: translate3d(0, var(--hero-shift, 0), 0) scale(1.015);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(255, 250, 240, 0.98) 0%, rgba(255, 250, 240, 0.9) 37%, rgba(255, 250, 240, 0.15) 72%, transparent 100%),
    linear-gradient(0deg, var(--paper-bright) 0%, transparent 25%);
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(90svh - 68px);
  padding-block: clamp(80px, 14vh, 150px) 96px;
}

.hero-kicker {
  color: var(--amethyst);
}

.hero-title {
  max-width: 920px;
  margin-bottom: 34px;
  font-size: clamp(2.75rem, 7vw, 4.9rem);
}

.hero-line {
  display: block;
  transition:
    opacity 900ms var(--ease-emphasized),
    transform 900ms var(--ease-emphasized);
}

html.js .hero-line,
html.js .hero-lead,
html.js .hero-actions,
html.js .hero-kicker {
  opacity: 0;
  transform: translateY(24px);
}

html.js body.is-ready .hero-line,
html.js body.is-ready .hero-lead,
html.js body.is-ready .hero-actions,
html.js body.is-ready .hero-kicker {
  opacity: 1;
  transform: translateY(0);
}

.hero-line:nth-child(2) {
  transition-delay: 90ms;
}

.hero-line:nth-child(3) {
  transition-delay: 180ms;
}

.hero-line-accent {
  color: var(--amethyst);
}

.hero-kicker {
  transition: opacity 650ms ease, transform 650ms ease;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 34px;
  color: #333a4d;
  font-size: clamp(1.05rem, 1rem + 0.5vw, 1.42rem);
  line-height: 1.8;
  transition: opacity 760ms var(--ease-emphasized) 240ms, transform 760ms var(--ease-emphasized) 240ms;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 26px;
  transition: opacity 760ms var(--ease-emphasized) 420ms, transform 760ms var(--ease-emphasized) 420ms;
}

.hero-definition {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: clamp(32px, 6vw, 88px);
  align-items: end;
  margin-bottom: clamp(44px, 7vw, 96px);
  padding: clamp(28px, 4vw, 48px);
  border-top: 1px solid rgba(18, 26, 50, 0.18);
  border-bottom: 1px solid rgba(18, 26, 50, 0.12);
  background: rgba(255, 250, 240, 0.7);
  backdrop-filter: blur(12px);
}

.hero-definition .fact-label {
  margin-bottom: 8px;
}

.definition-copy,
.definition-measure {
  margin-bottom: 0;
}

.definition-copy {
  max-width: 720px;
  font-size: clamp(1.1rem, 1rem + 0.55vw, 1.5rem);
}

.definition-measure {
  padding-left: 28px;
  border-left: 1px solid var(--gold);
  color: var(--ink-soft);
}

.definition-measure strong {
  color: var(--amethyst);
  font-family: var(--font-display);
  font-size: 1.18em;
}

.section-difference {
  background: var(--paper);
}

.difference-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: clamp(42px, 7vw, 100px);
  align-items: start;
}

.difference-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.difference-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.difference-row:last-child {
  border-bottom: 1px solid var(--line);
}

.difference-number,
.difference-state {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.difference-number {
  color: var(--gold);
}

.difference-state {
  margin-top: 5px;
  color: var(--ink-soft);
}

.difference-row h3 {
  margin-bottom: 10px;
}

.difference-row p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.difference-row-key h3,
.difference-row-key .difference-state {
  color: var(--amethyst);
}

.artifact-scene {
  position: sticky;
  top: 110px;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(18, 26, 50, 0.12);
  border-radius: 28px 4px 28px 4px;
  box-shadow: 0 30px 70px rgba(34, 31, 42, 0.13);
}

.artifact-scene img {
  width: 100%;
  height: auto;
}

.artifact-scene figcaption {
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: min(68%, 340px);
  padding: 18px 20px;
  color: var(--ink-soft);
  background: rgba(255, 250, 240, 0.86);
  border: 1px solid rgba(18, 26, 50, 0.11);
  border-radius: 3px 18px 3px 18px;
  backdrop-filter: blur(10px);
  font-size: 0.82rem;
  line-height: 1.7;
}

.artifact-scene figcaption span {
  display: block;
  margin-bottom: 5px;
  color: var(--amethyst);
  font-weight: 700;
}

.term-note {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  max-width: 780px;
  margin: clamp(56px, 8vw, 112px) auto 0;
  padding: 28px 0;
  border-top: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
}

.term-note p {
  margin-bottom: 0;
}

.term-note-mark {
  color: var(--gold);
}

.section-stages,
.section-business {
  overflow: clip;
  color: var(--paper-bright);
  background: var(--navy);
}

.section-stages {
  --stage-progress: 0;
}

.section-stages::before,
.section-business::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 86% 18%, rgba(112, 85, 162, 0.22), transparent 24rem),
    radial-gradient(circle at 12% 78%, rgba(49, 139, 133, 0.13), transparent 28rem);
}

.section-stages > .site-container {
  display: grid;
  grid-template-columns: minmax(300px, 0.78fr) minmax(430px, 1.22fr);
  gap: clamp(56px, 9vw, 130px);
  align-items: start;
}

.section-header-light {
  position: sticky;
  top: 124px;
  margin-bottom: 0;
}

.section-header-light .section-index,
.section-header-light > p:last-child {
  color: rgba(255, 250, 240, 0.68);
}

.stage-path {
  --stage-progress: 0;
  position: relative;
  margin: 0;
  padding: 24px 0 24px 74px;
  list-style: none;
}

.stage-path::before,
.stage-path::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 25px;
  width: 1px;
  content: "";
}

.stage-path::before {
  background: var(--line-light);
}

.stage-path::after {
  background: linear-gradient(var(--gold-light), var(--amethyst-light), var(--teal-light));
  transform: scaleY(var(--stage-progress));
  transform-origin: top;
}

.stage-step {
  position: relative;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 20px;
  min-height: 210px;
  padding: 22px 0 70px;
}

.stage-step::before {
  position: absolute;
  top: 31px;
  left: -56px;
  width: 15px;
  height: 15px;
  content: "";
  background: var(--navy);
  border: 2px solid var(--gold-light);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(221, 190, 125, 0.45);
}

.stage-step-key::before {
  border-color: var(--amethyst-light);
  box-shadow: 0 0 24px rgba(183, 161, 213, 0.68);
}

.stage-number {
  padding-top: 4px;
  color: var(--gold-light);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.stage-verb {
  margin-bottom: 14px;
  color: var(--paper-bright);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  font-weight: 700;
  line-height: 1.3;
}

.stage-step p:last-child {
  max-width: 510px;
  margin-bottom: 0;
  color: rgba(255, 250, 240, 0.72);
}

.stage-conclusion {
  grid-column: 1 / -1;
  max-width: 780px;
  margin: 48px 0 0 auto;
  padding: 34px 0 8px 40px;
  border-left: 1px solid var(--gold-light);
  color: rgba(255, 250, 240, 0.72);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
}

.stage-conclusion strong {
  color: var(--paper-bright);
}

.section-roles {
  background: var(--paper-bright);
}

.role-shelves {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
}

.role {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  row-gap: clamp(28px, 3vw, 42px);
  min-height: 320px;
  padding: clamp(28px, 3.25vw, 48px);
  overflow: hidden;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.role-receive {
  grid-column: span 4;
  background: #f2e8d2;
}

.role-source {
  grid-column: span 5;
  background: #e9e6dd;
}

.role-judgment {
  grid-column: span 3;
  color: var(--paper-bright);
  background: var(--navy-soft);
  border-color: var(--gold-light);
}

.role-number {
  margin: 0;
  color: var(--gold);
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 5.5rem);
  line-height: 1;
  opacity: 0.62;
}

.role h3 {
  margin-bottom: 18px;
}

.role p:last-child {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.role-judgment p:last-child {
  color: rgba(255, 250, 240, 0.74);
}

.role-glow {
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(141, 102, 193, 0.38), transparent 68%);
}

.role-footnotes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 6vw, 80px);
  margin-top: 60px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.role-footnotes p {
  margin-bottom: 0;
}

.section-questions {
  background: var(--paper);
}

.question-scene {
  position: relative;
  min-height: 600px;
  overflow: hidden;
  border: 1px solid rgba(18, 26, 50, 0.12);
  border-radius: 4px 36px 4px 36px;
  box-shadow: 0 36px 80px rgba(37, 33, 45, 0.12);
}

.question-scene picture,
.question-scene picture img {
  width: 100%;
  height: 100%;
}

.question-scene picture {
  position: absolute;
  inset: 0;
}

.question-scene picture img {
  object-fit: cover;
}

.question-copy {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 18px;
  width: min(45%, 480px);
  padding: clamp(28px, 5vw, 64px);
}

.question-card {
  padding: 26px 28px;
  background: rgba(255, 250, 240, 0.9);
  border: 1px solid rgba(104, 73, 143, 0.24);
  border-radius: 3px 22px 3px 22px;
  backdrop-filter: blur(12px);
}

.question-card-second {
  margin-left: 32px;
  border-color: rgba(36, 120, 117, 0.28);
}

.question-count {
  margin-bottom: 10px;
  color: var(--amethyst);
  font-size: 0.76rem;
  font-weight: 700;
}

.question-card-second .question-count {
  color: var(--teal);
}

.question-card h3 {
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.4vw, 2.35rem);
}

.question-card p:last-child {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.72;
}

.judgment-note {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(44px, 8vw, 112px);
  margin-top: clamp(80px, 10vw, 128px);
  padding: clamp(36px, 5vw, 64px);
  background: var(--paper-bright);
  border-top: 3px solid var(--navy);
  box-shadow: 0 24px 62px rgba(43, 35, 48, 0.09);
}

.judgment-note-heading h3 {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.35rem);
}

.note-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.note-fields div {
  min-height: 122px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.note-fields dt {
  margin-bottom: 8px;
  color: var(--amethyst);
  font-weight: 700;
}

.note-fields dd {
  color: var(--ink-soft);
}

.hold-note {
  max-width: 760px;
  margin: 72px auto 0;
  padding-left: 34px;
  border-left: 1px solid var(--teal);
  font-size: clamp(1.12rem, 2vw, 1.45rem);
}

.section-ai {
  background: var(--paper-bright);
}

.ai-scene {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(18, 26, 50, 0.12);
  border-radius: 34px 4px 34px 4px;
  box-shadow: 0 34px 76px rgba(26, 31, 47, 0.12);
}

.ai-scene img {
  width: 100%;
  height: auto;
}

.ai-scene figcaption {
  position: absolute;
  top: 12%;
  left: 6%;
  width: 28%;
  color: var(--navy);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.4;
}

.responsibility-boundary {
  display: grid;
  grid-template-columns: 1fr 64px 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: stretch;
  margin-top: clamp(80px, 10vw, 132px);
}

.ai-role,
.human-role {
  padding: 40px 0;
  border-top: 2px solid var(--teal);
  border-bottom: 1px solid var(--line);
}

.human-role {
  border-top-color: var(--amethyst);
}

.boundary-label {
  margin-bottom: 8px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.human-role .boundary-label {
  color: var(--amethyst);
}

.ai-role ul,
.human-role ul {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.ai-role li,
.human-role li {
  position: relative;
  padding: 14px 0 14px 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.ai-role li::before,
.human-role li::before {
  position: absolute;
  top: 22px;
  left: 2px;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--teal);
  transform: rotate(45deg);
}

.human-role li::before {
  background: var(--amethyst);
}

.boundary-line {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--gold);
}

.boundary-line::before,
.boundary-line::after {
  width: 1px;
  height: 38%;
  content: "";
  background: var(--gold);
}

.prompt-example {
  max-width: 860px;
  margin: 80px auto 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.prompt-example summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.prompt-example summary::-webkit-details-marker {
  display: none;
}

.prompt-example summary::after {
  content: "＋";
  color: var(--amethyst);
  font-size: 1.4rem;
}

.prompt-example[open] summary::after {
  content: "−";
}

.prompt-example pre {
  margin: 0 0 24px;
  padding: clamp(24px, 4vw, 42px);
  overflow-x: auto;
  color: var(--ink);
  background: #f3ead6;
  border-left: 3px solid var(--amethyst);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.85;
  white-space: pre-wrap;
}

.prompt-example > p {
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.section-business > .site-container {
  position: relative;
}

.business-glow {
  position: absolute;
  top: 34%;
  right: -12vw;
  width: 36vw;
  height: 36vw;
  pointer-events: none;
  background: radial-gradient(circle, rgba(99, 69, 143, 0.24), transparent 70%);
}

.section-business .section-header-light {
  position: relative;
  top: auto;
  max-width: 850px;
  margin-bottom: clamp(68px, 9vw, 120px);
}

.business-sequence {
  border-top: 1px solid var(--line-light);
}

.business-block {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: clamp(28px, 6vw, 80px);
  padding: clamp(44px, 7vw, 84px) 0;
  border-bottom: 1px solid var(--line-light);
}

.business-number {
  margin-bottom: 0;
  color: var(--gold-light);
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.9;
  opacity: 0.7;
}

.business-block h3 {
  max-width: 740px;
  margin-bottom: 24px;
  color: var(--paper-bright);
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 3rem);
}

.business-block p:last-child {
  max-width: 760px;
  margin-bottom: 0;
  color: rgba(255, 250, 240, 0.68);
}

.business-definitions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  max-width: 760px;
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.business-definitions div {
  padding: 20px 22px;
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.business-definitions dt {
  color: var(--teal-light);
  font-weight: 700;
}

.business-definitions dd {
  color: rgba(255, 250, 240, 0.68);
}

.business-keywords {
  color: var(--paper-bright) !important;
  font-size: clamp(1.15rem, 2.2vw, 1.6rem);
  font-weight: 700;
}

.business-keywords span {
  color: var(--gold-light);
  font-weight: 400;
}

.execution-boundary {
  margin-top: clamp(92px, 12vw, 160px);
  padding: clamp(44px, 7vw, 80px);
  background: rgba(255, 250, 240, 0.06);
  border-top: 1px solid var(--gold-light);
  border-bottom: 1px solid var(--line-light);
}

.execution-boundary h3 {
  max-width: 820px;
  margin-bottom: 42px;
  color: var(--paper-bright);
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 3.5rem);
}

.execution-planes {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 36px;
}

.execution-planes p {
  display: grid;
  gap: 8px;
  margin-bottom: 0;
  padding: 24px;
  border: 1px solid var(--line-light);
}

.execution-planes strong {
  color: var(--teal-light);
}

.execution-planes span {
  color: rgba(255, 250, 240, 0.66);
}

.execution-plus {
  color: var(--gold-light) !important;
  font-size: 1.5rem;
}

.execution-boundary > p:last-child {
  margin-bottom: 0;
  color: rgba(255, 250, 240, 0.68);
}

.approval-gate {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(28px, 5vw, 60px);
  align-items: center;
  margin-top: 72px;
  padding: clamp(34px, 5vw, 60px);
  background: rgba(108, 70, 145, 0.22);
  border: 1px solid rgba(221, 190, 125, 0.4);
}

.approval-symbol {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  color: var(--gold-light);
  border: 1px solid var(--gold-light);
  border-radius: 50%;
  font-size: 2rem;
}

.approval-gate h3 {
  color: var(--paper-bright);
}

.approval-gate p:last-child {
  margin-bottom: 0;
  color: rgba(255, 250, 240, 0.72);
}

.business-term-note {
  max-width: 840px;
  margin: 48px 0 0 auto;
  color: rgba(255, 250, 240, 0.52);
  font-size: 0.8rem;
}

.section-final {
  min-height: 100svh;
  padding-block: clamp(120px, 14vw, 190px);
  overflow: clip;
  background: var(--paper-bright);
}

.final-media,
.final-shade {
  position: absolute;
  inset: 0;
}

.final-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.final-shade {
  background:
    linear-gradient(90deg, rgba(255, 250, 240, 0.98) 0%, rgba(255, 250, 240, 0.94) 48%, rgba(255, 250, 240, 0.26) 78%, rgba(255, 250, 240, 0.08) 100%),
    linear-gradient(0deg, var(--paper-bright) 0%, transparent 24%);
}

.final-content {
  padding-right: min(30vw, 380px);
}

.section-final .section-header {
  margin-bottom: 52px;
}

.today-steps {
  max-width: 760px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.today-steps li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  align-items: center;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}

.today-steps span {
  color: var(--gold);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
}

.today-steps strong {
  font-size: clamp(1rem, 1.5vw, 1.18rem);
}

.final-cta {
  max-width: 720px;
  margin-top: 72px;
  padding-top: 38px;
  border-top: 1px solid var(--gold);
  scroll-margin-top: 96px;
}

.final-cta h3 {
  margin-bottom: 26px;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 3.2rem);
}

.final-whisper {
  color: var(--ink-soft);
}

.lecture-player {
  width: 100%;
}

.lecture-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  padding: clamp(4px, 0.6vw, 7px);
  overflow: hidden;
  background: linear-gradient(125deg, var(--gold-light), var(--amethyst), var(--teal), var(--gold-light));
  border-radius: 28px 4px 28px 4px;
  box-shadow:
    0 24px 54px rgba(17, 26, 59, 0.24),
    0 0 0 1px rgba(255, 250, 240, 0.62) inset;
}

.lecture-frame::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(110deg, transparent 12%, rgba(255, 255, 255, 0.42) 31%, transparent 42%),
    radial-gradient(circle at 88% 14%, rgba(221, 190, 125, 0.86) 0 2px, transparent 3px);
  opacity: 0.5;
}

.lecture-video {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  background: #090d1f;
  border-radius: 22px 2px 22px 2px;
  object-fit: cover;
}

.lecture-caption {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px 22px;
  align-items: start;
  padding: 16px 4px 0;
  color: var(--ink-soft);
  font-size: 0.76rem;
  line-height: 1.65;
}

.lecture-caption p {
  margin: 0;
}

.lecture-caption p:first-child {
  display: flex;
  gap: 8px;
  align-items: baseline;
  color: var(--ink);
  white-space: nowrap;
}

.lecture-caption p:first-child span {
  color: var(--gold);
  font-size: 0.7rem;
}

.lecture-caption a {
  font-weight: 700;
  white-space: nowrap;
}

.final-message {
  max-width: 760px;
  margin: 96px 0 0;
  padding-left: 28px;
  border-left: 1px solid var(--amethyst);
  font-size: clamp(1.2rem, 2vw, 1.62rem);
}

.reference-material {
  position: relative;
  isolation: isolate;
  padding-block: clamp(88px, 10vw, 144px);
  overflow: hidden;
  color: var(--paper-bright);
  background:
    radial-gradient(circle at 80% 26%, rgba(104, 73, 143, 0.42), transparent 28rem),
    radial-gradient(circle at 17% 112%, rgba(36, 120, 117, 0.2), transparent 25rem),
    linear-gradient(135deg, #0c132d 0%, var(--navy) 52%, #151d42 100%);
  border-top: 1px solid rgba(221, 190, 125, 0.34);
  border-bottom: 1px solid rgba(221, 190, 125, 0.34);
  scroll-margin-top: 88px;
}

.reference-material::before,
.reference-material::after {
  position: absolute;
  z-index: -1;
  pointer-events: none;
  content: "";
}

.reference-material::before {
  inset: 0;
  opacity: 0.42;
  background-image:
    linear-gradient(115deg, transparent 0 48%, rgba(221, 190, 125, 0.08) 48.1% 48.3%, transparent 48.4%),
    radial-gradient(circle, rgba(255, 250, 240, 0.56) 0 1px, transparent 1.5px);
  background-position: center, 0 0;
  background-size: auto, 68px 68px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 50%, #000 100%);
}

.reference-material::after {
  top: -190px;
  right: -160px;
  width: 460px;
  aspect-ratio: 1;
  border: 1px solid rgba(221, 190, 125, 0.2);
  border-radius: 50%;
  box-shadow:
    0 0 0 54px rgba(183, 161, 213, 0.035),
    0 0 0 110px rgba(139, 210, 202, 0.025);
}

.reference-material-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 1fr);
  gap: clamp(44px, 5vw, 72px);
  align-items: center;
}

.reference-material-copy,
.reference-material-action {
  min-width: 0;
}

.reference-material-copy {
  max-width: 680px;
}

.reference-material-label {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  margin-bottom: 26px;
  padding: 4px 12px;
  color: var(--navy);
  background: var(--gold-light);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.reference-material-platform {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
  color: rgba(255, 250, 240, 0.6);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.reference-material-platform span {
  color: var(--teal-light);
  font-size: 0.62rem;
}

.reference-material h2 {
  max-width: 660px;
  margin-bottom: 28px;
  font-size: clamp(2.1rem, 4.2vw, 4.1rem);
  line-height: 1.18;
}

.reference-material-copy > p:last-child {
  max-width: 620px;
  margin-bottom: 0;
  color: rgba(255, 250, 240, 0.72);
}

.reference-material-action {
  display: grid;
  justify-items: stretch;
  padding: 0;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 250, 240, 0.09), rgba(255, 250, 240, 0.035));
  border: 1px solid rgba(221, 190, 125, 0.42);
  border-radius: 3px 32px 3px 32px;
  box-shadow:
    0 24px 70px rgba(4, 8, 24, 0.28),
    0 0 0 1px rgba(255, 250, 240, 0.04) inset;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.reference-material-image-link,
.reference-material-image-link picture {
  display: block;
}

.reference-material-image-link {
  overflow: hidden;
  background: #fff;
  border-bottom: 1px solid rgba(221, 190, 125, 0.42);
}

.reference-material-image-link img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 628;
  object-fit: contain;
  object-position: center;
  transition: transform 520ms var(--ease-emphasized);
}

.reference-material-action-body {
  display: grid;
  justify-items: start;
  padding: clamp(30px, 4vw, 48px);
}

.reference-material-disclosure {
  margin-bottom: 24px;
  color: rgba(255, 250, 240, 0.78);
  font-size: 0.875rem;
  line-height: 1.72;
}

.reference-material-disclosure strong {
  display: block;
  margin-bottom: 6px;
  color: var(--gold-light);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.reference-material-button {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  width: 100%;
  min-height: 64px;
  padding: 14px 18px 14px 22px;
  color: var(--navy);
  background: var(--paper-bright);
  border: 1px solid var(--gold-light);
  border-radius: 999px;
  box-shadow: 0 16px 36px rgba(4, 8, 24, 0.22);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.35;
  text-decoration: none;
  transition:
    color var(--dur-micro) ease,
    background var(--dur-micro) ease,
    border-color var(--dur-micro) ease,
    transform var(--dur-micro) var(--ease-emphasized),
    box-shadow var(--dur-micro) ease;
}

.reference-material-arrow {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: var(--paper-bright);
  background: var(--amethyst);
  border-radius: 50%;
  transition: transform var(--dur-micro) var(--ease-emphasized);
}

.reference-material-note {
  margin: 14px 0 0;
  color: rgba(255, 250, 240, 0.54);
  font-size: 0.72rem;
  line-height: 1.65;
}

.source-section {
  padding-block: clamp(80px, 9vw, 128px);
  background: #ece2cf;
  border-top: 1px solid var(--line);
}

.source-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(44px, 8vw, 120px);
}

.source-layout h2 {
  margin-bottom: 0;
  font-family: var(--font-body);
  font-size: clamp(1.6rem, 2.7vw, 2.6rem);
}

.source-copy > p:first-child {
  margin-bottom: 28px;
  color: var(--ink-soft);
}

.source-links {
  margin: 0 0 32px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.source-links li {
  border-bottom: 1px solid var(--line);
}

.source-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 56px;
  font-weight: 700;
}

.source-links a::after {
  content: "↗";
  color: var(--amethyst);
}

.source-disclaimer {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.site-footer {
  color: var(--paper-bright);
  background: #0c132d;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 124px;
  gap: 24px;
}

.footer-brand {
  color: var(--paper-bright);
}

.footer-inner p {
  margin-bottom: 0;
  color: rgba(255, 250, 240, 0.56);
  font-size: 0.84rem;
}

@keyframes button-shimmer {
  to { transform: translateX(130%); }
}

@media (hover: hover) and (pointer: fine) {
  .site-nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .header-action:hover,
  .video-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 38px rgba(17, 26, 59, 0.24);
  }

  .video-button:active,
  .header-action:active {
    transform: translateY(1px);
  }

  .source-links a:hover {
    color: var(--amethyst);
  }

  .reference-material-button:hover {
    color: var(--paper-bright);
    background: var(--amethyst);
    border-color: var(--amethyst-light);
    box-shadow: 0 20px 44px rgba(4, 8, 24, 0.34);
    transform: translateY(-2px);
  }

  .reference-material-button:hover .reference-material-arrow {
    color: var(--navy);
    background: var(--gold-light);
    transform: translate(2px, -2px);
  }

  .reference-material-image-link:hover img {
    transform: scale(1.012);
  }
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .difference-layout {
    grid-template-columns: 1fr;
  }

  .artifact-scene {
    position: relative;
    top: auto;
    width: min(100%, 720px);
    margin-inline: auto;
  }

  .section-stages > .site-container {
    grid-template-columns: 1fr;
  }

  .section-header-light {
    position: relative;
    top: auto;
    max-width: 760px;
    margin-bottom: 68px;
  }

  .stage-path {
    max-width: 760px;
    margin-left: auto;
  }

  .stage-conclusion {
    margin-left: 74px;
  }

  .role-receive,
  .role-source {
    grid-column: span 6;
  }

  .role-judgment {
    grid-column: 3 / span 8;
  }

  .question-copy {
    width: 52%;
  }

  .final-content {
    padding-right: 20vw;
  }

  .guide {
    width: var(--guide-size);
  }
}

@media (min-width: 1101px) {
  .section-stages .section-header-light h2 {
    font-size: min(4.5vw, 3.8rem);
  }

  .role-shelves {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr) minmax(0, 1fr);
  }

  .role-receive,
  .role-source,
  .role-judgment {
    grid-column: auto;
  }
}

@media (max-width: 820px) {
  :root {
    --section-space: 104px;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(255, 250, 240, 0.97) 0%, rgba(255, 250, 240, 0.84) 58%, rgba(255, 250, 240, 0.18) 100%),
      linear-gradient(0deg, var(--paper-bright) 0%, transparent 25%);
  }

  .hero-definition,
  .judgment-note,
  .source-layout {
    grid-template-columns: 1fr;
  }

  .definition-measure {
    padding: 24px 0 0;
    border-top: 1px solid var(--gold);
    border-left: 0;
  }

  .question-scene {
    min-height: 540px;
  }

  .question-copy {
    width: 60%;
  }

  .responsibility-boundary {
    grid-template-columns: 1fr;
  }

  .boundary-line {
    flex-direction: row;
  }

  .boundary-line::before,
  .boundary-line::after {
    width: 38%;
    height: 1px;
  }

  .execution-planes {
    grid-template-columns: 1fr;
  }

  .execution-plus {
    justify-self: center;
  }

  .final-content {
    padding-right: 12vw;
  }

  .reference-material-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 52px;
  }

  .reference-material-action {
    width: min(100%, 720px);
  }
}

@media (max-width: 767px) {
  :root {
    --container-pad: 16px;
    --section-space: 88px;
  }

  html {
    scroll-padding-top: 72px;
  }

  body {
    line-height: 1.78;
  }

  .hero-title {
    font-size: clamp(2.2rem, 9.7vw, 2.5rem);
    line-height: 1.16;
  }

  h2 {
    font-size: clamp(2rem, 9.4vw, 3rem);
    line-height: 1.24;
  }

  .site-header {
    min-height: 60px;
    padding-inline: 16px;
    background: rgba(255, 250, 240, 0.96);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .brand {
    font-size: 0.68rem;
  }

  .header-action {
    min-width: 104px;
    padding-inline: 14px;
    font-size: 0.72rem;
  }

  .guide {
    --guide-size: 64px;
  }

  [data-guide-blocker] {
    padding-right: 76px;
  }

  html.guide-star-mode [data-guide-blocker] {
    padding-right: 0;
  }

  .hero {
    padding-top: 60px;
  }

  .hero-media img {
    object-position: 63% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(255, 250, 240, 0.98) 0%, rgba(255, 250, 240, 0.91) 66%, rgba(255, 250, 240, 0.42) 100%),
      linear-gradient(0deg, var(--paper-bright) 0%, transparent 30%);
  }

  .hero-content {
    min-height: calc(88svh - 60px);
    padding-block: 88px 64px;
  }

  .hero-title {
    margin-bottom: 26px;
  }

  .hero-lead {
    margin-bottom: 28px;
  }

  .desktop-break {
    display: none;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .hero-definition {
    width: calc(100% - 24px);
    padding: 26px 18px;
  }

  .section-header {
    margin-bottom: 50px;
  }

  .section-index {
    margin-bottom: 16px;
  }

  .difference-row {
    grid-template-columns: 36px 1fr;
  }

  .difference-state {
    grid-column: 2;
    margin-top: -10px;
  }

  .artifact-scene {
    border-radius: 22px 3px 22px 3px;
  }

  .artifact-scene figcaption {
    position: relative;
    right: auto;
    bottom: auto;
    width: 100%;
    padding: 20px;
    background: var(--paper-bright);
    border: 0;
    border-top: 1px solid var(--line);
    border-radius: 0;
  }

  .term-note {
    margin-top: 56px;
  }

  .stage-path {
    padding-left: 48px;
  }

  .stage-path::before,
  .stage-path::after {
    left: 11px;
  }

  .stage-step {
    grid-template-columns: 46px 1fr;
    gap: 12px;
    min-height: 190px;
  }

  .stage-step::before {
    left: -44px;
  }

  .stage-conclusion {
    margin: 24px 0 0 48px;
    padding-left: 24px;
  }

  .role-shelves {
    grid-template-columns: 1fr;
  }

  .role-receive,
  .role-source,
  .role-judgment {
    grid-column: auto;
  }

  .role {
    min-height: 250px;
  }

  .role-footnotes {
    grid-template-columns: 1fr;
  }

  .question-scene {
    min-height: 0;
    overflow: visible;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .question-scene picture {
    position: relative;
    height: auto;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 3px 22px 3px 22px;
  }

  .question-scene picture img {
    height: auto;
  }

  .question-copy {
    width: 100%;
    padding: 22px 0 0;
  }

  html:not(.guide-star-mode) .question-copy[data-guide-blocker] {
    padding-right: 76px;
  }

  .question-card,
  .question-card-second {
    margin-left: 0;
    padding: 24px 22px;
    background: var(--paper-bright);
    backdrop-filter: none;
  }

  .judgment-note {
    gap: 30px;
    margin-top: 72px;
    padding: 28px 22px;
  }

  .note-fields {
    grid-template-columns: 1fr;
  }

  .note-fields div {
    min-height: 98px;
  }

  .hold-note {
    margin-top: 52px;
  }

  .ai-scene {
    border-radius: 22px 3px 22px 3px;
  }

  .ai-scene figcaption {
    position: relative;
    top: auto;
    left: auto;
    width: 100%;
    padding: 22px;
    background: var(--paper);
    font-size: 1.35rem;
  }

  .responsibility-boundary {
    margin-top: 72px;
  }

  .prompt-example {
    margin-top: 56px;
  }

  .business-block {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 16px;
  }

  .business-number {
    font-size: 3rem;
  }

  .business-definitions {
    grid-template-columns: 1fr;
  }

  .business-keywords span {
    display: none;
  }

  .business-keywords {
    display: grid;
    gap: 8px;
  }

  .execution-boundary {
    margin-inline: -8px;
    padding: 34px 22px;
  }

  .approval-gate {
    grid-template-columns: 1fr;
    padding: 28px 22px;
  }

  .approval-symbol {
    width: 62px;
    height: 62px;
  }

  .section-final {
    padding-block: 104px;
  }

  .final-media img {
    object-position: 62% center;
  }

  .final-shade {
    background:
      linear-gradient(90deg, rgba(255, 250, 240, 0.98) 0%, rgba(255, 250, 240, 0.92) 78%, rgba(255, 250, 240, 0.42) 100%),
      linear-gradient(0deg, var(--paper-bright) 0%, transparent 28%);
  }

  .final-content {
    padding-right: 0;
  }

  .today-steps li {
    grid-template-columns: 44px 1fr;
    min-height: 72px;
  }

  .final-message {
    margin-top: 72px;
  }

  .reference-material {
    padding-block: 88px;
  }

  .reference-material h2 {
    font-size: clamp(2rem, 9.2vw, 3rem);
  }

  .reference-material-card {
    gap: 40px;
  }

  .reference-material-action {
    border-radius: 3px 24px 3px 24px;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .reference-material-action-body {
    padding: 28px 22px;
  }

  .reference-material-button {
    gap: 12px;
    min-height: 60px;
    padding-left: 18px;
    font-size: 0.84rem;
  }

  .reference-material-arrow {
    width: 34px;
    height: 34px;
  }

  .lecture-frame {
    border-radius: 20px 3px 20px 3px;
  }

  .lecture-video {
    border-radius: 15px 1px 15px 1px;
  }

  .lecture-caption {
    grid-template-columns: 1fr;
    gap: 6px;
    padding-top: 14px;
  }

  .lecture-caption a {
    white-space: normal;
  }

  .source-layout {
    gap: 44px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: 30px;
  }
}

@media (max-width: 359px) {
  [data-guide-blocker] {
    padding-right: 0;
  }

  .guide {
    --guide-size: 38px;
  }

  .guide-image {
    opacity: 0 !important;
  }

  .guide-small-star {
    opacity: 1;
  }

  .header-action {
    min-width: 96px;
    padding-inline: 10px;
  }

  .brand span:last-child {
    max-width: 74px;
    line-height: 1.2;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js .reveal,
  html.js .hero-line,
  html.js .hero-lead,
  html.js .hero-actions,
  html.js .hero-kicker,
  .stage-path::after,
  .hero-media img {
    opacity: 1 !important;
    transform: none !important;
  }

  #magic-particles {
    display: none;
  }

  .motion-layer {
    position: absolute;
    height: 100svh;
    bottom: auto;
  }

  .guide {
    position: absolute;
    top: min(62svh, 560px);
    right: 12px;
    left: auto;
    width: 32px;
    opacity: 0 !important;
    transform: none !important;
  }

  [data-guide-blocker] {
    padding-right: 0 !important;
  }

  .guide-image-flight,
  .guide-image-arrival,
  .guide-image {
    opacity: 0 !important;
  }

  .guide-small-star {
    opacity: 0 !important;
  }
}

@media print {
  .site-header,
  .reading-progress,
  .motion-layer,
  .lecture-player,
  .video-button,
  .text-link {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }

  .hero,
  .section,
  .reference-material,
  .source-section {
    break-inside: avoid;
  }
}