:root {
  --ink: #181817;
  --ink-soft: #5d5954;
  --ink-faint: #6b6660;
  --canvas: #f6f4ef;
  --paper: #fbfaf7;
  --paper-strong: #ffffff;
  --red: #cf1520;
  --red-deep: #a90e17;
  --red-soft: #f5dfe1;
  --line: rgba(24, 24, 23, 0.15);
  --line-strong: rgba(24, 24, 23, 0.28);
  --dark: #151514;
  --dark-soft: #1c1b1a;
  --off-white: #f5f3ed;
  --green: #7fa889;
  --page: min(1280px, calc(100vw - 80px));
  --nav-height: 64px;
  --radius-card: 16px;
  --radius-control: 9px;
  --shadow-soft: 0 22px 55px rgba(62, 50, 43, 0.09);
  --shadow-card: 0 22px 60px rgba(45, 38, 33, 0.12);
  --motion-enter: 360ms;
  --motion-ease: cubic-bezier(.22, 1, .36, 1);
  --section-title: clamp(38px, 3.6vw, 52px);
  font-family: "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

* { box-sizing: border-box; }

html {
  background: var(--canvas);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 28px);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open { overflow: hidden; }

main { position: relative; }

.scroll-state-sentinel {
  position: absolute;
  top: 24px;
  left: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
  opacity: 0;
}

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

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

button,
a { touch-action: manipulation; }

a { color: inherit; }

button { color: inherit; }

address { font-style: normal; }

h1,
h2,
h3,
p,
figure,
dl,
dd { margin: 0; }

h1,
h2,
h3 { line-height: 1.12; text-wrap: balance; }

.page-shell {
  width: var(--page);
  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: 9px 13px;
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  transform: translateY(-180%);
}

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

:where(a, button, input, textarea, select, summary):focus-visible {
  outline: 3px solid rgba(207, 21, 32, 0.34);
  outline-offset: 3px;
}

button:active,
.button:active,
.header-cta:active { transform: translateY(1px) scale(0.99); }

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button--primary {
  background: var(--red);
  color: #fff;
}

.button--primary:hover { background: var(--red-deep); }

.button--light {
  background: var(--off-white);
  color: var(--red-deep);
}

.button--light:hover { background: #fff; }

.button--secondary {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink);
}

.button--secondary:hover { border-color: var(--ink); }

.text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 4px;
  border-bottom: 1px solid currentColor;
  font-weight: 700;
  text-decoration: none;
}

.text-link span { transition: transform 180ms ease; }
.text-link:hover span { transform: translateX(4px); }
.text-link--light { color: var(--off-white); }

.section-kicker,
.hero-kicker {
  color: var(--red);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.015em;
}

.section-kicker--red { color: #ee2530; }

.section-heading {
  max-width: 780px;
}

.section-heading h2 {
  font-size: clamp(44px, 4.6vw, 68px);
  letter-spacing: -0.045em;
  font-weight: 760;
}

.section-heading p {
  max-width: 650px;
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.75;
}

.section-heading--wide {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  align-items: end;
  gap: 70px;
}

.section-heading--wide p { margin-bottom: 8px; }

.section-action { margin-top: 32px; }



/* Global header */
.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--nav-height);
  border-bottom: 1px solid rgba(24, 24, 23, 0.08);
  background: rgba(251, 250, 247, 0.64);
  -webkit-backdrop-filter: blur(28px) saturate(155%);
  backdrop-filter: blur(28px) saturate(155%);
  transition: background-color 220ms ease, border-color 220ms ease, color 220ms ease;
}

.site-header.is-scrolled {
  background: rgba(251, 250, 247, 0.68);
  box-shadow: inset 0 1px 0 #ffffff80, 0 8px 30px rgba(38, 33, 29, 0.08);
}

.site-header[data-tone="dark"] {
  border-color: var(--line);
  background: rgba(251, 250, 247, .76);
  color: var(--ink);
}

.site-header__inner {
  width: var(--page);
  height: 100%;
  display: grid;
  grid-template-columns: 145px 1fr 130px;
  align-items: center;
  gap: 24px;
  margin-inline: auto;
}

.brand {
  width: 116px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand img { width: 100%; height: auto; }

.desktop-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(24px, 2.5vw, 40px);
}

.desktop-nav a {
  position: relative;
  padding: 20px 0 19px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 11px;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.desktop-nav a:hover::after,
.desktop-nav a[aria-current="page"]::after { transform: scaleX(1); }

.header-cta {
  min-height: 39px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 7px;
  background: var(--red);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 180ms ease, transform 180ms ease;
}

.header-cta:hover { background: var(--red-deep); }

.menu-button { display: none; }

.menu-backdrop {
  position: fixed;
  z-index: 109;
  inset: 0;
  background: rgba(14, 14, 13, 0.48);
  backdrop-filter: blur(4px);
}

.mobile-menu {
  position: fixed;
  z-index: 110;
  inset: 0 0 0 auto;
  width: min(420px, 92vw);
  display: flex;
  flex-direction: column;
  padding: max(20px, env(safe-area-inset-top)) 24px max(26px, env(safe-area-inset-bottom));
  background: var(--paper);
  box-shadow: -30px 0 80px rgba(20, 18, 17, 0.16);
  transform: translateX(102%);
  visibility: hidden;
  transition: transform 320ms cubic-bezier(.16, 1, .3, 1), visibility 320ms;
}

.mobile-menu[aria-hidden="false"] {
  transform: translateX(0);
  visibility: visible;
}

.mobile-menu__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}

.mobile-menu__head button {
  min-width: 48px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.mobile-menu__links { display: grid; padding: 18px 0; }

.mobile-menu__link {
  display: flex;
  align-items: center;
  min-height: 56px;
  border-bottom: 1px solid var(--line);
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
}

.mobile-menu__link[aria-current="page"] { color: var(--red); }

.mobile-menu__services { display: grid; gap: 9px; padding: 20px 0; }
.mobile-menu__services span { color: var(--ink-faint); font-size: 14px; }
.mobile-menu__services a { font-size: 15px; text-decoration: none; }

.mobile-menu__cta {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: auto;
  border-radius: var(--radius-control);
  background: var(--red);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

/* Footer and support */
.site-footer {
  padding: 78px 0 24px;
  background: #111110;
  color: var(--off-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr .7fr 1fr 1.25fr;
  gap: 56px;
}

.footer-brand img { width: 132px; height: auto; object-fit: contain; }
.footer-brand p { margin-top: 30px; color: #bdb8b0; }
.footer-brand strong { display: block; max-width: 330px; margin-top: 8px; font-size: 22px; line-height: 1.45; }

.footer-column { display: flex; flex-direction: column; gap: 10px; }
.footer-column > span:first-child { margin-bottom: 8px; color: #8f8a83; font-size: 13px; }
.footer-column a { color: #d7d3cc; text-decoration: none; }
.footer-column a:hover { color: #fff; }
.footer-contact address { margin-top: 6px; color: #aaa59e; font-size: 14px; line-height: 1.7; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: #8f8a83;
  font-size: 13px;
}

.support-dock {
  position: fixed;
  z-index: 90;
  right: 14px;
  bottom: 18px;
  display: grid;
  overflow: hidden;
  border: 1px solid rgba(24, 24, 23, .15);
  border-radius: 12px;
  background: rgba(251, 250, 247, .92);
  box-shadow: 0 18px 45px rgba(32, 27, 24, .13);
  backdrop-filter: blur(16px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.home-page:not(.page-scrolled) .support-dock { opacity: 0; pointer-events: none; transform: translateY(10px); }

.support-dock a,
.support-dock button {
  min-width: 70px;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.support-dock__primary { background: var(--red) !important; color: #fff; }
.support-dock__top { border-bottom: 0 !important; font-size: 18px !important; }
.mobile-action-bar { display: none; }

/* Home intro scroll container */
.home-page main { background: var(--canvas); }
.home-page main > section { scroll-snap-align: none; }
.home-page main > .snap-screen,
.home-page main > .scene-section { scroll-snap-align: start; }
.snap-screen { scroll-snap-align: start; scroll-snap-stop: always; }

/* H01 */
.home-hero {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
  padding-top: var(--nav-height);
  background:
    radial-gradient(circle at 18% 40%, rgba(207, 21, 32, .05), transparent 30rem),
    linear-gradient(180deg, #fbfaf7 0%, #f7f5f0 86%, #ebe7e0 100%);
}

.home-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 42px;
  background: linear-gradient(180deg, transparent, rgba(26, 24, 22, .16));
  pointer-events: none;
}

.home-hero__grid {
  position: relative;
  z-index: 2;
  min-height: calc(100dvh - var(--nav-height));
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(500px, .97fr);
  align-items: center;
  gap: 12px;
  padding: 54px 0 70px;
}

.home-hero__copy { position: relative; z-index: 3; max-width: 680px; }
.home-hero__copy .hero-kicker { margin-bottom: 23px; }

.home-hero__copy h1 {
  margin-bottom: 18px;
  font-size: clamp(58px, 5vw, 72px);
  line-height: 1.04;
  letter-spacing: -.055em;
  font-weight: 770;
  white-space: nowrap;
}

.hero-summary { color: #3f3c38; font-size: 20px; line-height: 1.55; }

.hero-composer {
  width: min(100%, 650px);
  margin-top: 42px;
  padding: 18px;
  border: 1px solid rgba(24, 24, 23, .24);
  border-radius: var(--radius-card);
  background: rgba(255, 255, 255, .82);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(14px);
}

.hero-composer__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  gap: 12px;
}

.hero-composer input,
.hero-composer__row button {
  min-height: 62px;
  border-radius: var(--radius-control);
}

.hero-composer input {
  width: 100%;
  padding: 0 18px;
  border: 1px solid rgba(24, 24, 23, .2);
  background: rgba(255, 255, 255, .92);
  color: var(--ink);
  font-size: 16px;
}

.hero-composer input::placeholder { color: #79746e; opacity: 1; }

.hero-composer__row button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 0;
  background: var(--red);
  color: #fff;
  cursor: pointer;
  font-size: 17px;
  font-weight: 700;
  white-space: nowrap;
  transition: background-color 180ms ease, transform 180ms ease;
}

.hero-composer__row button:hover { background: var(--red-deep); }

.hero-suggestions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.hero-suggestions button {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(24, 24, 23, .12);
  border-radius: var(--radius-control);
  background: rgba(251, 250, 247, .76);
  color: #292826;
  cursor: pointer;
  font-size: 14px;
  white-space: nowrap;
  transition: border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.hero-suggestions button:hover { border-color: rgba(207, 21, 32, .42); background: #fff; transform: translateY(-2px); }
.hero-suggestions span { color: var(--red); font-size: 18px; }

.system-map {
  position: relative;
  width: 100%;
  height: min(680px, calc(100dvh - 96px));
  align-self: center;
  margin-left: 0;
  isolation: isolate;
}

.system-map::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 15% 5% 7% 0;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(207, 21, 32, .045), transparent 69%);
  filter: blur(12px);
}

.system-map__visual { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.map-plane { color: rgba(24, 24, 23, .082); }
.map-construction,
.map-crosshairs,
.map-guides,
.feedback-orbit,
.cube-axis { fill: none; }
.map-construction { stroke: rgba(24, 24, 23, .082); stroke-width: 1; }
.map-guides { stroke: rgba(24, 24, 23, .27); stroke-width: 1.05; stroke-dasharray: 7 7; }
.map-crosshairs { stroke: rgba(24, 24, 23, .32); stroke-width: 1; }
.map-crosshairs circle { fill: var(--paper); }
.cube-motion { transform-box: fill-box; transform-origin: center; }
.cube-halo { fill: rgba(207, 21, 32, .12); filter: url(#cube-glow); }
.cube-top { fill: url(#cube-top-red); stroke: rgba(207, 21, 32, .8); }
.cube-left { fill: url(#cube-left-red); stroke: rgba(207, 21, 32, .55); }
.cube-right { fill: url(#cube-right-red); stroke: rgba(207, 21, 32, .62); }
.cube-top,
.cube-left,
.cube-right,
.cube-neutral-top,
.cube-neutral-left,
.cube-neutral-right { stroke-width: 1.2; }
.cube-axis { stroke: rgba(207, 21, 32, .33); stroke-width: .8; }
.cube-neutral-top { fill: rgba(255, 255, 255, .7); stroke: rgba(24, 24, 23, .28); }
.cube-neutral-left { fill: rgba(24, 24, 23, .03); stroke: rgba(24, 24, 23, .25); }
.cube-neutral-right { fill: rgba(24, 24, 23, .06); stroke: rgba(24, 24, 23, .25); }
.route-glow { fill: none; stroke: rgba(207, 21, 32, .28); stroke-width: 27; filter: url(#route-glow); }
.route-track { fill: none; stroke: var(--red); stroke-width: 3.2; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1000; stroke-dashoffset: 1000; }
.marker-ring { fill: var(--paper); stroke: var(--red); stroke-width: 2.2; }
.marker-core { fill: var(--red); }
.feedback-orbit { stroke: rgba(24, 24, 23, .65); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }

.map-label {
  position: absolute;
  z-index: 3;
  min-width: 180px;
  opacity: 0;
  transform: translateY(12px);
}

.map-label strong { display: flex; gap: 10px; align-items: baseline; font-size: 18px; }
.map-label b { font-size: 15px; }
.map-label span { display: block; margin: 5px 0 0 34px; color: var(--ink-soft); font-size: 14px; }
.label-one { top: 14.8%; right: 14%; }
.label-two { top: 36.2%; right: -4%; }
.label-three { top: 60.2%; right: 0; }
.label-four { right: 30%; bottom: 4.8%; min-width: 230px; }

@media (prefers-reduced-motion: no-preference) {
  .home-hero.is-running .route-track { animation: route-draw 1.2s .15s var(--motion-ease) forwards; }
  .home-hero.is-running .cube-one { animation: cube-arrive 400ms .2s var(--motion-ease) both; }
  .home-hero.is-running .cube-middle { animation: cube-arrive 400ms .55s var(--motion-ease) both; }
  .home-hero.is-running .cube-four { animation: cube-arrive 400ms .9s var(--motion-ease) both; }
  .home-hero.is-running .map-label { animation: label-arrive 360ms var(--motion-ease) forwards; }
  .home-hero.is-running .label-one { animation-delay: .2s; }
  .home-hero.is-running .label-two { animation-delay: .45s; }
  .home-hero.is-running .label-three { animation-delay: .7s; }
  .home-hero.is-running .label-four { animation-delay: .95s; }
  .home-hero.is-running .feedback-orbit { animation: orbit-breathe 1.2s 1s ease-in-out both; }
}

@keyframes route-draw { to { stroke-dashoffset: 0; } }
@keyframes cube-arrive { from { opacity: 0; transform: scale(.96) translateY(8px); } to { opacity: 1; transform: scale(1) translateY(0); } }
@keyframes label-arrive { to { opacity: 1; transform: none; } }
@keyframes orbit-breathe { 50% { opacity: .4; } }

/* H02 */
.proof-section {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 68px) 0 84px;
  background:
    radial-gradient(circle at 52% 48%, rgba(207, 21, 32, .17), transparent 35%),
    #151514;
  color: var(--off-white);
}

.proof-shell {
  min-height: 650px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 72px 82px 60px;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 28px;
  background: rgba(255, 255, 255, .018);
}

.proof-copy h2 {
  max-width: 980px;
  margin-top: 22px;
  font-size: clamp(52px, 5.2vw, 76px);
  letter-spacing: -.048em;
  font-weight: 710;
}

.proof-copy > p:last-child { margin-top: 18px; color: #aaa59e; font-size: 18px; }

.proof-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 64px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.proof-metrics article {
  min-height: 186px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.proof-metrics article + article { border-left: 1px solid rgba(255, 255, 255, .18); }
.proof-metrics strong { font-size: clamp(50px, 5vw, 72px); line-height: 1; letter-spacing: -.055em; }
.proof-metrics span { color: #aaa59e; }

.proof-practice {
  display: grid;
  grid-template-columns: 1.35fr repeat(4, 1fr);
  align-items: center;
  gap: 0;
  margin-top: 56px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.proof-practice > * { min-height: 28px; display: flex; align-items: center; padding: 0 34px; border-left: 1px solid rgba(255, 255, 255, .17); color: #b9b4ad; text-decoration: none; font-weight: 500; }
.proof-practice > *:first-child { padding-left: 0; border-left: 0; color: var(--off-white); font-size: 14px; font-weight: 700; }
.proof-practice a:hover { color: #fff; }

/* H03 */
.system-definition-section {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 64px) 0 78px;
  background:
    linear-gradient(rgba(24, 24, 23, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 24, 23, .035) 1px, transparent 1px),
    var(--paper);
  background-size: 48px 48px;
}

.system-definition__shell { display: grid; grid-template-columns: 390px minmax(0, 1fr); align-items: center; gap: 78px; }
.system-definition__shell .section-heading h2 { font-size: clamp(44px, 4vw, 62px); }

.system-definition__map {
  position: relative;
  min-height: 650px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(251, 250, 247, .88);
  box-shadow: 0 28px 80px rgba(56, 48, 42, .08);
  overflow: hidden;
}

.system-definition__map::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 48%, rgba(207, 21, 32, .1), transparent 24rem);
  pointer-events: none;
}

.system-definition__core {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: 310px;
  min-height: 186px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px;
  border: 1px solid rgba(207, 21, 32, .42);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: var(--shadow-card);
  transform: translate(-50%, -50%);
}

.system-definition__core span { color: var(--red); font-size: 14px; font-weight: 700; }
.system-definition__core strong { margin-top: 8px; font-size: 26px; }
.system-definition__core p { margin-top: 8px; color: var(--ink-soft); font-size: 14px; }
.system-definition__core > span:last-child { display: block; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); color: var(--red); font-size: 12px; font-weight: 700; }

.system-definition__paths i {
  position: absolute;
  z-index: 1;
  display: block;
  height: 1px;
  background: linear-gradient(90deg, rgba(207, 21, 32, .72), rgba(207, 21, 32, .18));
  transform-origin: left;
  transition: height 180ms ease, box-shadow 180ms ease;
}

.system-definition__tabs {
  position: absolute;
  z-index: 4;
  inset: 0;
}

.path-diagnose { top: 30%; left: 26%; width: 27%; transform: rotate(21deg); }
.path-plan { top: 29%; left: 49%; width: 26%; transform: rotate(-22deg); }
.path-execute { top: 63%; left: 24%; width: 29%; transform: rotate(-22deg); }
.path-review { top: 62%; left: 49%; width: 29%; transform: rotate(21deg); }

[data-active-system="diagnose"] .path-diagnose,
[data-active-system="plan"] .path-plan,
[data-active-system="execute"] .path-execute,
[data-active-system="review"] .path-review { height: 3px; box-shadow: 0 0 18px rgba(207, 21, 32, .34); }

.system-node { position: absolute; z-index: 4; }
.system-node--diagnose { top: 8%; left: 5%; }
.system-node--plan { top: 8%; right: 5%; }
.system-node--execute { bottom: 10%; left: 5%; }
.system-node--review { right: 5%; bottom: 10%; }

.system-node button {
  width: 210px;
  min-height: 122px;
  display: grid;
  grid-template-columns: 38px 1fr;
  align-content: center;
  gap: 5px 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, .78);
  cursor: pointer;
  text-align: left;
  box-shadow: 0 14px 35px rgba(52, 43, 37, .06);
  transition: border-color 180ms ease, transform 180ms ease, background-color 180ms ease;
}

.system-node button:hover,
.system-node button.is-active { border-color: rgba(207, 21, 32, .48); background: #fff; transform: translateY(-3px); }
.system-node button > span { grid-row: 1 / span 2; color: var(--red); font-size: 14px; font-weight: 800; }
.system-node button strong { font-size: 18px; }
.system-node button small { color: var(--ink-soft); font-size: 13px; }

.system-definition__panel {
  position: absolute;
  z-index: 5;
  right: 24px;
  bottom: 24px;
  width: 330px;
  padding: 20px 22px;
  border-left: 3px solid var(--red);
  background: rgba(247, 245, 240, .94);
  backdrop-filter: blur(12px);
}

.system-definition__panel > span:first-child { display: none; }
.system-definition__panel strong { display: block; font-size: 17px; }
.system-definition__panel p { margin-top: 4px; color: var(--ink-soft); font-size: 13px; }
.system-definition__panel > span:last-child { display: block; margin-top: 8px; color: var(--red); font-size: 12px; font-weight: 700; }

/* H04 */
.service-depths-section {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 56px) 0 72px;
  background: linear-gradient(180deg, #f7f5f0, #eeebe5);
}

.service-depths__shell .section-heading { max-width: none; display: grid; grid-template-columns: 1.1fr .9fr; align-items: end; gap: 70px; }
.service-depths__shell .section-heading p { margin: 0 0 8px; }

.service-depths {
  height: 510px;
  display: grid;
  grid-template-columns: 1fr 1.72fr 1fr;
  gap: 14px;
  margin-top: 48px;
  transition: none;
}

[data-active-service="starter"] .service-depths { grid-template-columns: 1.72fr 1fr 1fr; }
[data-active-service="department"] .service-depths { grid-template-columns: 1fr 1.72fr 1fr; }
[data-active-service="enterprise"] .service-depths { grid-template-columns: 1fr 1fr 1.72fr; }

.service-depth {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(24, 24, 23, .15);
  border-radius: var(--radius-card);
  background: #222;
  box-shadow: 0 22px 48px rgba(44, 37, 32, .14);
  isolation: isolate;
}

.service-depth > img { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 650ms cubic-bezier(.16, 1, .3, 1), filter 300ms ease; }
.service-depth:not(.is-active) > img { filter: grayscale(1) contrast(1.05) brightness(.66); }
.service-depth.is-active > img { transform: scale(1.025); }
.service-depth__shade { position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg, rgba(12, 12, 12, .08), rgba(12, 12, 12, .86)); }

.service-depth__content {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 30px;
  color: #fff;
}

.service-depth__content > span { color: #f4bec1; font-size: 14px; font-weight: 700; }
.service-depth__content h3 { max-width: 430px; margin-top: 8px; font-size: clamp(25px, 2.6vw, 38px); }
.service-depth__content p { max-width: 420px; margin-top: 12px; color: #d6d1ca; opacity: 0; transform: translateY(10px); transition: opacity 220ms ease, transform 220ms ease; }
.service-depth__content button { min-height: 44px; margin-top: 16px; margin-right: 16px; padding: 0 12px; border: 1px solid rgba(255,255,255,.5); border-radius: 6px; background: transparent; color: #fff; cursor: pointer; }
.service-depth__content button[aria-pressed="true"] { border-color: #fff; background: rgba(255,255,255,.16); }
.service-depth__content a { display: inline-flex; margin-top: 20px; padding-bottom: 3px; border-bottom: 1px solid currentColor; color: #fff; font-weight: 700; text-decoration: none; opacity: 0; transform: translateY(10px); transition: opacity 220ms ease, transform 220ms ease; }
.service-depth.is-active .service-depth__content p,
.service-depth.is-active .service-depth__content a { opacity: 1; transform: none; }

.service-depth__flow {
  position: absolute;
  top: 28px;
  right: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, .4);
  border-radius: 10px;
  background: rgba(255, 255, 255, .82);
  color: var(--ink);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 240ms ease, transform 240ms ease;
}

.service-depth.is-active .service-depth__flow { opacity: 1; transform: none; }
.service-depth__flow span { font-size: 12px; font-weight: 700; }
.service-depth__flow i { width: 18px; height: 1px; background: var(--red); }

.service-depth--enterprise { background: #171716; }
.enterprise-grid {
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .08) 1px, transparent 1px),
    radial-gradient(circle at 58% 44%, rgba(207, 21, 32, .54), transparent 35%),
    #171716;
  background-size: 42px 42px, 42px 42px, auto, auto;
  transform: perspective(700px) rotateX(58deg) scale(1.5) translateY(12%);
  transform-origin: center;
}

/* H05 */
.scene-section {
  padding: 132px 0 122px;
  background: var(--paper);
}

.scene-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr 1fr 1fr;
  grid-template-rows: 220px 220px 210px;
  gap: 14px;
  margin-top: 58px;
}

.scene-card {
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: #fff;
}

.scene-card > span,
.scene-card > div > span { color: var(--red); font-size: 13px; font-weight: 700; }
.scene-card h3 { max-width: 420px; margin-top: 10px; font-size: clamp(20px, 2vw, 29px); line-height: 1.25; }
.scene-card button {
  align-self: flex-start;
  margin-top: auto;
  padding: 10px 0 2px;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}

.scene-card--feature { grid-row: 1 / span 2; grid-column: 1 / span 2; color: #fff; }
.scene-card--wide { grid-column: 3 / span 2; }
.scene-card--red { background: var(--red); color: #fff; }
.scene-card--red > span { color: #fff0f1; }
.scene-card--photo { grid-column: 2 / span 2; color: #fff; }
.scene-card--dark { background: var(--dark); color: var(--off-white); }
.scene-card--dark > span { color: #f07178; }
.scene-card--line {
  background:
    radial-gradient(circle at 90% 20%, rgba(207, 21, 32, .12), transparent 10rem),
    repeating-linear-gradient(135deg, transparent 0 27px, rgba(24, 24, 23, .045) 28px 29px),
    #fff;
}

.scene-card > img {
  position: absolute;
  z-index: -2;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(.16, 1, .3, 1);
}

.scene-card:hover > img { transform: scale(1.025); }
.scene-card__shade { position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg, rgba(11, 11, 11, .05), rgba(11, 11, 11, .82)); }
.scene-card--feature > div,
.scene-card--photo > div { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; }

/* Dialogs */
.content-dialog,
.case-dialog {
  width: min(680px, calc(100vw - 36px));
  max-height: min(760px, calc(100dvh - 36px));
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 30px 90px rgba(23, 20, 18, .3);
}

.content-dialog::backdrop,
.case-dialog::backdrop { background: rgba(15, 15, 14, .62); backdrop-filter: blur(5px); }

.dialog-close {
  position: sticky;
  z-index: 2;
  top: 16px;
  float: right;
  min-width: 54px;
  min-height: 40px;
  margin: 16px 16px 0 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(251, 250, 247, .94);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}

.content-dialog__body { padding: 72px 48px 48px; }
.content-dialog__body > span { color: var(--red); font-size: 14px; font-weight: 700; }
.content-dialog__body h2 { margin-top: 10px; font-size: clamp(34px, 6vw, 52px); letter-spacing: -.035em; }
.content-dialog__body dl { display: grid; gap: 20px; margin-top: 34px; }
.content-dialog__body dl div { padding-top: 18px; border-top: 1px solid var(--line); }
.content-dialog__body dt { color: var(--ink-faint); font-size: 13px; }
.content-dialog__body dd { margin-top: 6px; font-size: 17px; }
.content-dialog__body .button { margin-top: 34px; }

/* H06 */
.feedback-section {
  padding: 130px 0;
  background:
    radial-gradient(circle at 78% 42%, rgba(207, 21, 32, .18), transparent 30rem),
    #151514;
  color: var(--off-white);
}

.feedback-shell { display: grid; grid-template-columns: minmax(320px, .68fr) minmax(620px, 1.32fr); align-items: center; gap: 70px; }
.feedback-copy h2 { max-width: 570px; margin-top: 18px; font-size: clamp(48px, 5vw, 72px); letter-spacing: -.048em; }
.feedback-copy > p:not(.section-kicker) { max-width: 540px; margin-top: 22px; color: #aaa59e; font-size: 18px; line-height: 1.75; }
.feedback-copy .text-link { margin-top: 30px; }

.feedback-board {
  min-height: 610px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 22px;
  background: rgba(255, 255, 255, .025);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .04);
}

.feedback-board__head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding-bottom: 20px; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.feedback-board__head strong { font-size: 18px; }
.feedback-board__head span { color: #79756f; font-size: 12px; }

.feedback-loop {
  position: relative;
  height: 250px;
  margin: 28px 0 24px;
}

.feedback-loop::before {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  width: 360px;
  height: 145px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.feedback-loop__path {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 360px;
  height: 145px;
  border: 2px solid transparent;
  border-top-color: var(--red);
  border-right-color: var(--red);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-28deg);
  opacity: .85;
}

.feedback-step {
  position: absolute;
  z-index: 2;
  width: 132px;
  min-height: 78px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 12px;
  background: #1c1b1a;
  opacity: .46;
  transition: opacity 260ms ease, border-color 260ms ease, transform 260ms ease;
}

.feedback-step b { font-size: 17px; }
.feedback-step small { color: #8f8a83; }
.feedback-step--one { top: 84px; left: 2%; }
.feedback-step--two { top: 10px; left: 36%; }
.feedback-step--three { top: 84px; right: 2%; }
.feedback-step--four { bottom: 4px; left: 36%; }

.feedback-section.is-running .feedback-step { animation: feedback-step-on 620ms cubic-bezier(.16, 1, .3, 1) forwards; }
.feedback-section.is-running .feedback-step--two { animation-delay: .22s; }
.feedback-section.is-running .feedback-step--three { animation-delay: .44s; }
.feedback-section.is-running .feedback-step--four { animation-delay: .66s; }

@keyframes feedback-step-on { to { opacity: 1; border-color: rgba(207, 21, 32, .56); transform: translateY(-3px); } }

.feedback-metrics { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(255, 255, 255, .14); border-radius: 12px; overflow: hidden; }
.feedback-metrics button { min-height: 80px; padding: 13px; border: 0; border-left: 1px solid rgba(255, 255, 255, .12); background: transparent; color: #aaa59e; cursor: pointer; text-align: left; }
.feedback-metrics button:first-child { border-left: 0; }
.feedback-metrics button:hover,
.feedback-metrics button.is-active { background: rgba(207, 21, 32, .12); color: #fff; }
.feedback-metrics span,
.feedback-metrics small { display: block; }
.feedback-metrics span { font-weight: 700; }
.feedback-metrics small { margin-top: 2px; color: inherit; font-size: 12px; opacity: .76; }

.feedback-panel { display: grid; grid-template-columns: 105px 110px 1fr; align-items: center; gap: 16px; margin-top: 18px; padding: 15px 18px; border-left: 2px solid var(--red); background: rgba(255, 255, 255, .035); }
.feedback-panel span { color: #79756f; font-size: 12px; }
.feedback-panel strong { font-size: 15px; }
.feedback-panel p { color: #aaa59e; font-size: 13px; }

/* H07 */
.home-cases-section { padding: 132px 0; background: var(--canvas); }

.case-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, .7fr);
  align-items: end;
  gap: 74px;
}

.case-heading h2 { margin-top: 18px; font-size: clamp(48px, 5vw, 72px); letter-spacing: -.05em; }
.case-heading > div:last-child p { color: var(--ink-soft); font-size: 17px; line-height: 1.8; }
.case-heading .text-link { margin-top: 22px; }

.home-cases-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.85fr) minmax(280px, .75fr);
  grid-template-rows: repeat(2, minmax(270px, auto));
  gap: 18px;
  margin-top: 54px;
}

.home-case {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: #fff;
  box-shadow: 0 18px 45px rgba(55, 47, 42, .06);
}

.home-case > a { height: 100%; display: grid; grid-template-rows: minmax(170px, 1fr) auto; color: inherit; text-decoration: none; }
.home-case > a > img { width: 100%; height: 100%; min-height: 160px; object-fit: cover; transition: transform 650ms cubic-bezier(.16, 1, .3, 1); }
.home-case:hover > a > img,
.home-case:hover .home-case__media > img:first-child { transform: scale(1.025); }
.home-case--feature { grid-row: 1 / span 2; }
.home-case--feature > a { display: flex; flex-direction: column; }

.home-case__media { position: relative; overflow: hidden; background: #ddd; width: 100%; aspect-ratio: 848 / 572; flex: 0 0 auto; }
.home-case__media > img:first-child { width: 100%; height: 100%; object-fit: cover; transition: transform 650ms cubic-bezier(.16, 1, .3, 1); }
.home-case__inset { position: absolute; right: 24px; bottom: 24px; width: 230px; height: auto; aspect-ratio: 849 / 572; object-fit: cover; border: 4px solid #fff; border-radius: 12px; box-shadow: 0 12px 34px rgba(20, 18, 17, .18); }

.home-case__body { padding: 24px 26px 28px; }
.home-case__body > span { color: var(--red); font-size: 12px; font-weight: 700; }
.home-case__body h3 { margin-top: 7px; font-size: clamp(23px, 2.2vw, 34px); }
.home-case__body p { margin-top: 10px; color: var(--ink-soft); }
.home-case__body strong { display: block; margin-top: 17px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--ink-faint); font-size: 12px; font-weight: 600; }

/* H08 */
.principles-section { padding: 130px 0; background: var(--paper); }
.principles-shell { display: grid; grid-template-columns: minmax(340px, .74fr) minmax(590px, 1.26fr); gap: 72px; }
.principles-copy h2 { margin-top: 18px; font-size: clamp(48px, 4.8vw, 68px); letter-spacing: -.05em; }
.principles-copy > p:not(.section-kicker) { max-width: 520px; margin-top: 22px; color: var(--ink-soft); font-size: 17px; }
.principles-copy > .text-link { margin-top: 28px; }

.principle-tabs { display: grid; margin-top: 38px; border-top: 1px solid var(--line); }
.principle-tabs button {
  min-height: 62px;
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: center;
  padding: 0 14px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.principle-tabs button span { color: var(--ink-faint); font-size: 12px; }
.principle-tabs button:hover,
.principle-tabs button.is-active { padding-left: 20px; background: rgba(207, 21, 32, .045); color: var(--red); }

.principle-evidence {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  grid-template-rows: 1fr auto;
  gap: 16px;
}

.principle-evidence__panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 390px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background:
    radial-gradient(circle at 88% 14%, rgba(207, 21, 32, .13), transparent 13rem),
    #fff;
}

.principle-evidence__panel > span { color: var(--red); font-size: 13px; font-weight: 700; }
.principle-evidence__panel h3 { margin-top: 10px; font-size: clamp(30px, 3vw, 44px); }
.principle-evidence__panel p { margin-top: 14px; color: var(--ink-soft); }
.principle-evidence__panel strong { display: block; margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 15px; }

.principle-evidence__photo { position: relative; overflow: hidden; border-radius: var(--radius-card); background: #ddd; }
.principle-evidence__photo img { width: 100%; height: 100%; min-height: 390px; object-fit: cover; }
.principle-evidence__photo figcaption { position: absolute; right: 0; bottom: 0; left: 0; padding: 28px 18px 14px; background: linear-gradient(transparent, rgba(10, 10, 10, .7)); color: #f2f0eb; font-size: 12px; }

.principle-evidence__flow {
  grid-column: 1 / -1;
  min-height: 104px;
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 16px;
  padding: 20px 28px;
  border-radius: var(--radius-card);
  background: var(--dark);
  color: var(--off-white);
}

.principle-evidence__flow span { font-weight: 700; }
.principle-evidence__flow i { flex: 1; height: 1px; max-width: 90px; background: var(--red); }

/* H09 */
.final-cta-section { padding: 72px 0; background: var(--canvas); }
.final-cta {
  min-height: 470px;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  align-items: center;
  gap: 70px;
  padding: 72px 78px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 85% 90%, rgba(255, 255, 255, .12), transparent 22rem),
    var(--red);
  color: #fff;
  overflow: hidden;
}

.final-cta > div:first-child > span { color: #ffd7d9; font-size: 15px; font-weight: 700; }
.final-cta h2 { max-width: 780px; margin-top: 16px; font-size: clamp(52px, 5.5vw, 78px); letter-spacing: -.055em; }
.final-cta p { max-width: 640px; margin-top: 20px; color: #ffd7d9; font-size: 18px; }
.final-cta__action { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.final-cta__action .button { min-width: 230px; }
.final-cta__action > a:not(.button):last-child { color: #ffd7d9; font-size: 14px; text-decoration: none; }

/* Inner page foundations */
.inner-page main { padding-top: var(--nav-height); }
.inner-hero { min-height: 680px; display: flex; align-items: center; overflow: hidden; background: var(--paper); }
.inner-hero__grid { min-height: 610px; display: grid; grid-template-columns: minmax(0, .95fr) minmax(500px, 1.05fr); align-items: center; gap: 76px; padding: 70px 0; }
.inner-hero__copy { max-width: 720px; }
.breadcrumb { display: flex; align-items: center; gap: 9px; margin-bottom: 34px; color: var(--ink-faint); font-size: 13px; }
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--red); }
.inner-hero h1 { font-size: clamp(56px, 5.5vw, 82px); letter-spacing: -.055em; font-weight: 770; }
.inner-hero__copy > p { max-width: 650px; margin-top: 24px; color: var(--ink-soft); font-size: 19px; line-height: 1.75; }
.inner-hero__copy > .button { margin-top: 34px; }

.section-nav {
  position: sticky;
  z-index: 80;
  top: var(--nav-height);
  border-block: 1px solid var(--line);
  background: rgba(251, 250, 247, .94);
  backdrop-filter: blur(16px);
}

.section-nav__inner { display: flex; align-items: center; gap: clamp(22px, 3.2vw, 48px); min-height: 58px; overflow-x: auto; scrollbar-width: none; }
.section-nav__inner::-webkit-scrollbar { display: none; }
.section-nav a { position: relative; flex: 0 0 auto; padding: 17px 0; color: var(--ink-soft); font-size: 14px; font-weight: 650; text-decoration: none; white-space: nowrap; }
.section-nav a::after { content: ""; position: absolute; right: 0; bottom: 7px; left: 0; height: 2px; background: var(--red); transform: scaleX(0); transform-origin: left; transition: transform 180ms ease; }
.section-nav a:hover,
.section-nav a[aria-current] { color: var(--ink); }
.section-nav a[aria-current]::after { transform: scaleX(1); }

.scope-note,
.enterprise-note,
.team-boundary { color: var(--ink-faint); font-size: 13px; line-height: 1.7; }

/* Solutions hero */
.solutions-hero {
  background:
    radial-gradient(circle at 84% 24%, rgba(207, 21, 32, .09), transparent 28rem),
    linear-gradient(180deg, #fbfaf7, #f2efe9);
}

.stage-visual { position: relative; height: 470px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: end; gap: 16px; padding: 54px 10px 36px; }
.stage-visual__axis { position: absolute; right: 4%; bottom: 35px; left: 4%; height: 1px; background: var(--line-strong); }
.stage-visual__axis::before { content: ""; position: absolute; left: 0; bottom: 0; width: 72%; height: 2px; background: var(--red); transform-origin: left; }
.stage-visual article { position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: flex-end; padding: 26px 22px; border: 1px solid var(--line); border-radius: var(--radius-card); background: rgba(255, 255, 255, .82); box-shadow: 0 20px 52px rgba(45, 38, 34, .08); }
.stage-visual article:nth-of-type(1) { min-height: 190px; }
.stage-visual article:nth-of-type(2) { min-height: 270px; }
.stage-visual article:nth-of-type(3) { min-height: 350px; background: var(--dark); color: var(--off-white); }
.stage-visual article:nth-of-type(3) > span { color: #f2777e; }
.stage-visual article::after { content: ""; position: absolute; left: 24px; bottom: -7px; width: 13px; height: 13px; border: 2px solid var(--red); border-radius: 50%; background: var(--paper); }
.stage-visual article:nth-of-type(3)::after { background: var(--dark); }
.stage-visual article > span { color: var(--red); font-size: 13px; font-weight: 700; }
.stage-visual article strong { margin-top: 4px; font-size: 32px; }
.stage-visual article p { margin-top: 10px; color: var(--ink-soft); font-size: 13px; }
.stage-visual article:nth-of-type(3) p { color: #aaa59e; }

/* Solution blocks */
.solution-block { scroll-margin-top: calc(var(--nav-height) + 72px); padding: 120px 0; }
.solution-block--starter { background: var(--canvas); }
.solution-block--department { background: var(--paper); }
.solution-block__grid { display: grid; grid-template-columns: minmax(320px, .68fr) minmax(580px, 1.32fr); gap: 80px; }
.solution-block__intro { align-self: start; position: sticky; top: calc(var(--nav-height) + 92px); }
.solution-block__intro > span,
.enterprise-intro > span { color: var(--red); font-size: 14px; font-weight: 700; }
.solution-block__intro h2,
.enterprise-intro h2 { margin-top: 13px; font-size: clamp(44px, 4.5vw, 64px); letter-spacing: -.045em; }
.solution-block__intro > p,
.enterprise-intro > p { margin-top: 20px; color: var(--ink-soft); font-size: 17px; line-height: 1.75; }
.solution-block__intro .text-link,
.enterprise-intro .text-link { margin-top: 28px; }

.solution-block__body { display: grid; gap: 16px; }
.solution-question,
.solution-result { min-height: 150px; display: flex; flex-direction: column; justify-content: space-between; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.solution-question > span,
.solution-result > span { color: var(--ink-faint); font-size: 13px; }
.solution-question strong,
.solution-result strong { max-width: 640px; margin-top: 18px; font-size: clamp(23px, 2.4vw, 34px); line-height: 1.35; }
.solution-result { border-color: rgba(207, 21, 32, .28); background: rgba(207, 21, 32, .045); }

.deliverable-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.deliverable-grid article { min-height: 150px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-card); background: rgba(255, 255, 255, .6); }
.deliverable-grid span { color: var(--red); font-size: 13px; font-weight: 700; }
.deliverable-grid p { margin-top: 12px; color: var(--ink-soft); }

.solution-block__grid--media { grid-template-columns: minmax(0, .8fr) minmax(340px, .62fr); }
.solution-media { position: relative; min-height: 500px; overflow: hidden; border-radius: var(--radius-card); grid-row: 1 / span 2; }
.solution-media img { width: 100%; height: 100%; object-fit: cover; }
.solution-media figcaption { position: absolute; right: 0; bottom: 0; left: 0; padding: 40px 18px 15px; background: linear-gradient(transparent, rgba(10, 10, 10, .72)); color: #f2f0eb; font-size: 12px; }
.solution-block__grid--media .solution-block__intro { position: static; }
.department-workflow { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(7, auto); align-items: center; gap: 14px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.department-workflow article { min-width: 0; }
.department-workflow article > span { color: var(--red); font-size: 12px; font-weight: 700; }
.department-workflow strong { display: block; margin-top: 5px; font-size: 16px; }
.department-workflow p { margin-top: 6px; color: var(--ink-soft); font-size: 12px; }
.department-workflow > i { width: 24px; height: 1px; background: var(--red); }
.solution-result-strip { grid-column: 1 / -1; display: grid; grid-template-columns: 1.4fr .6fr; gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-card); background: var(--line); }
.solution-result-strip > div { padding: 24px 28px; background: var(--canvas); }
.solution-result-strip span { display: block; color: var(--ink-faint); font-size: 12px; }
.solution-result-strip strong { display: block; margin-top: 8px; font-size: 17px; }

.solution-block--enterprise { background: var(--dark); color: var(--off-white); }
.solution-block--enterprise .enterprise-intro > span { color: #f2777e; }
.enterprise-shell { display: grid; grid-template-columns: minmax(330px, .65fr) minmax(620px, 1.35fr); gap: 74px; }
.enterprise-intro > p { color: #aaa59e; }
.enterprise-architecture { position: relative; min-height: 520px; display: flex; flex-direction: column; justify-content: center; align-items: center; perspective: 900px; }
.enterprise-architecture::before { content: ""; position: absolute; inset: 8% 0; background: radial-gradient(circle, rgba(207, 21, 32, .2), transparent 62%); filter: blur(10px); }
.enterprise-layer { position: relative; width: 72%; min-height: 112px; display: grid; grid-template-columns: 110px 1fr; align-items: center; padding: 18px 26px; border: 1px solid rgba(255, 255, 255, .18); border-radius: var(--radius-card); background: rgba(255, 255, 255, .045); box-shadow: 0 20px 60px rgba(0, 0, 0, .22); transform: rotateX(58deg) rotateZ(-5deg); }
.enterprise-layer + .enterprise-layer { margin-top: -14px; }
.enterprise-layer--top { z-index: 3; border-color: rgba(207, 21, 32, .7); background: rgba(207, 21, 32, .16); }
.enterprise-layer--middle { z-index: 2; width: 82%; }
.enterprise-layer--base { z-index: 1; width: 92%; }
.enterprise-layer span { color: #f2777e; font-size: 12px; font-weight: 700; }
.enterprise-layer strong { font-size: 18px; }
.enterprise-layer small { grid-column: 2; color: #8f8a83; }
.enterprise-orbit { position: absolute; inset: 8% 5%; pointer-events: none; }
.enterprise-orbit i { position: absolute; border: 1px solid rgba(207, 21, 32, .34); border-radius: 50%; }
.enterprise-orbit i:nth-child(1) { inset: 8% 13%; }
.enterprise-orbit i:nth-child(2) { inset: 18% 3%; transform: rotate(12deg); }
.enterprise-orbit i:nth-child(3) { inset: 28% 20%; transform: rotate(-10deg); }
.enterprise-deliverables { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(255, 255, 255, .16); border-radius: var(--radius-card); overflow: hidden; }
.enterprise-deliverables article { min-height: 150px; padding: 25px; border-left: 1px solid rgba(255, 255, 255, .14); }
.enterprise-deliverables article:first-child { border-left: 0; }
.enterprise-deliverables span { color: #f2777e; font-size: 13px; font-weight: 700; }
.enterprise-deliverables p { margin-top: 12px; color: #aaa59e; }
.enterprise-note { grid-column: 1 / -1; color: #aaa59e; }

/* Method explorer */
.method-explorer-section { scroll-margin-top: calc(var(--nav-height) + 72px); padding: 128px 0; background: var(--canvas); }
.method-explorer { display: grid; grid-template-columns: 1.25fr .75fr; gap: 28px; margin-top: 54px; }
.method-steps { display: grid; grid-template-columns: repeat(7, 1fr); min-width: 0; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; overflow: hidden; }
.method-steps button { min-width: 0; min-height: 218px; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start; padding: 22px 16px; border: 0; border-left: 1px solid var(--line); background: transparent; cursor: pointer; text-align: left; transition: background-color 180ms ease, color 180ms ease; }
.method-steps button:first-child { border-left: 0; }
.method-steps button:hover,
.method-steps button.is-active { background: var(--red); color: #fff; }
.method-steps button > span { color: var(--ink-faint); font-size: 12px; }
.method-steps button.is-active > span,
.method-steps button:hover > span { color: #fff0f1; }
.method-steps strong { writing-mode: vertical-rl; text-orientation: mixed; font-size: 16px; letter-spacing: .06em; }
.method-steps small { color: var(--ink-faint); font-size: 12px; }
.method-steps button.is-active small,
.method-steps button:hover small { color: #fff0f1; }

.method-panel { min-height: 218px; display: flex; flex-direction: column; justify-content: center; padding: 30px; border-radius: var(--radius-card); background: var(--dark); color: var(--off-white); }
.method-panel > span { color: #f2777e; font-size: 12px; font-weight: 700; }
.method-panel h3 { margin-top: 8px; font-size: 30px; }
.method-panel > p { margin-top: 12px; color: #aaa59e; }
.method-panel > div { margin-top: 26px; padding-top: 17px; border-top: 1px solid rgba(255, 255, 255, .16); }
.method-panel > div span { display: block; color: #bdb8b0; font-size: 12px; }
.method-panel > div strong { display: block; margin-top: 5px; font-size: 14px; }

/* Comparison and cooperation */
.comparison-section { scroll-margin-top: calc(var(--nav-height) + 72px); padding: 126px 0; background: var(--paper); }
.comparison-scroll-hint { display: none; }
.comparison-table-wrap { margin-top: 50px; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.comparison-table { width: 100%; min-width: 860px; border-collapse: collapse; text-align: left; }
.comparison-table caption { padding: 18px 22px; color: var(--ink-faint); font-size: 12px; text-align: left; }
.comparison-table th,
.comparison-table td { padding: 22px 24px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); vertical-align: top; }
.comparison-table th:first-child,
.comparison-table td:first-child { border-left: 0; }
.comparison-table thead th { background: #f0ede7; font-size: 15px; }
.comparison-table thead th:last-child { background: var(--dark); color: var(--off-white); }
.comparison-table tbody th { width: 150px; color: var(--ink-faint); font-size: 13px; font-weight: 650; }
.comparison-table td { color: var(--ink-soft); }
.comparison-table td a { color: var(--red); font-weight: 700; text-decoration: none; }

.cooperation-section { padding: 120px 0; background: var(--canvas); }
.cooperation-grid { display: grid; grid-template-columns: minmax(320px, .68fr) minmax(620px, 1.32fr); gap: 80px; }
.cooperation-copy h2 { font-size: clamp(44px, 4.5vw, 64px); letter-spacing: -.045em; }
.cooperation-copy p { max-width: 500px; margin-top: 20px; color: var(--ink-soft); }
.cooperation-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 0; padding: 0; list-style: none; counter-reset: cooperate; }
.cooperation-steps li { min-height: 170px; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; counter-increment: cooperate; }
.cooperation-steps li::before { content: "0" counter(cooperate); color: var(--red); font-size: 12px; font-weight: 800; }
.cooperation-steps span { display: block; margin-top: 26px; font-size: 19px; font-weight: 750; }
.cooperation-steps p { margin-top: 8px; color: var(--ink-soft); font-size: 14px; }

.faq-section { scroll-margin-top: calc(var(--nav-height) + 72px); padding: 126px 0; background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: minmax(320px, .72fr) minmax(600px, 1.28fr); gap: 80px; }
.faq-copy h2 { font-size: clamp(42px, 4vw, 60px); letter-spacing: -.04em; }
.faq-copy p { max-width: 480px; margin-top: 20px; color: var(--ink-soft); }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; font-size: 18px; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: 0 0 auto; color: var(--red); font-size: 26px; font-weight: 400; transition: transform 180ms ease; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { max-width: 660px; padding: 0 40px 24px 0; color: var(--ink-soft); }

.final-cta--compact { min-height: 360px; }

/* Cases page */
.inner-hero.cases-hero {
  min-height: calc(100svh - var(--nav-height));
  background:
    radial-gradient(circle at 78% 34%, rgba(207, 21, 32, .12), transparent 26rem),
    var(--paper);
}

.cases-hero__grid { min-height: 610px; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(370px, .8fr); align-items: center; gap: 88px; padding: 70px 0; }
.case-evidence-brief { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius-card); background: rgba(255, 255, 255, .82); box-shadow: var(--shadow-soft); }
.case-evidence-brief > span { color: var(--red); font-size: 13px; font-weight: 700; }
.case-evidence-brief ol { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 26px 0 0; padding: 0; list-style: none; counter-reset: evidence; }
.case-evidence-brief li { min-height: 84px; display: flex; flex-direction: column; justify-content: center; padding: 14px; border: 1px solid var(--line); border-radius: 10px; counter-increment: evidence; font-weight: 700; }
.case-evidence-brief li::before { content: "0" counter(evidence); color: var(--red); font-size: 12px; }
.case-evidence-brief p { margin-top: 20px; color: var(--ink-faint); font-size: 12px; }

.featured-case-section { padding: 32px 0; background: var(--canvas); }
.featured-case { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); grid-template-rows: repeat(2, minmax(0, 1fr)); height: clamp(480px, calc(100svh - 224px), 720px); overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: 0 30px 75px rgba(52, 44, 39, .09); }
.featured-case__media,
.featured-case__detail { position: relative; min-width: 0; min-height: 0; overflow: hidden; background: #ddd; }
.featured-case__media > img,
.featured-case__detail > img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 24%; }
.featured-case__media > span,
.featured-case__detail > span { position: absolute; bottom: 16px; left: 16px; padding: 8px 11px; border-radius: 6px; background: rgba(20, 20, 19, .84); color: #fff; font-size: 12px; }
.featured-case__copy { display: flex; flex-direction: column; justify-content: center; min-width: 0; padding: 24px 32px; }
.featured-case__copy > span { color: var(--red); font-size: 13px; font-weight: 700; }
.featured-case__copy h2 { margin-top: 10px; font-size: clamp(21px, 1.85vw, 28px); }
.featured-case__copy h3 { margin-top: 16px; font-size: clamp(24px, 2.35vw, 34px); letter-spacing: -.035em; }
.featured-case__facts { display: flex; align-items: center; min-width: 0; padding: 24px 36px; }
.featured-case__facts dl { display: grid; width: 100%; gap: 16px; }
.featured-case__facts dl div { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
.featured-case__facts dl div:first-child { padding-top: 0; border-top: 0; }
.featured-case__facts dt { color: var(--red); font-size: 13px; font-weight: 700; }
.featured-case__facts dd { color: var(--ink-soft); font-size: 15px; }
.featured-case__copy .button { align-self: flex-start; flex-shrink: 0; margin-top: 20px; }
@media (min-width: 901px) and (max-height: 760px) {
  .featured-case__copy,
  .featured-case__facts { padding: 20px 24px; }
  .featured-case__copy h2 { font-size: 22px; }
  .featured-case__copy h3 { margin-top: 12px; font-size: 24px; }
  .featured-case__copy .button { margin-top: 14px; }
  .featured-case__facts dl { gap: 12px; }
  .featured-case__facts dl div { padding-top: 12px; }
}

.case-archive-section { padding: 126px 0; background: var(--paper); }
.case-toolbar { display: grid; grid-template-columns: 1fr minmax(340px, .48fr); align-items: end; gap: 64px; }
.case-toolbar h2 { font-size: clamp(43px, 4.6vw, 66px); letter-spacing: -.045em; }
.case-toolbar > div:first-child p { margin-top: 12px; color: var(--ink-faint); }
.case-search { display: grid; gap: 8px; }
.case-search label { font-size: 13px; font-weight: 700; }
.case-search input { min-height: 50px; padding: 0 15px; border: 1px solid var(--line-strong); border-radius: var(--radius-control); background: #fff; color: var(--ink); }
.case-search input::placeholder { color: #77716a; }

.case-filters { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 34px; }
.case-filters button { min-height: 44px; padding: 0 17px; border: 1px solid var(--line); border-radius: 999px; background: transparent; cursor: pointer; font-size: 13px; }
.case-filters button:hover,
.case-filters button.is-active { border-color: var(--red); background: var(--red); color: #fff; }

.case-archive-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: minmax(430px, auto); gap: 16px; margin-top: 40px; }
.archive-case { position: relative; min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.archive-case[hidden] { display: none; }
.archive-case--wide { grid-column: span 2; }
.archive-case--tall { grid-row: span 2; }
.archive-case > img { width: 100%; height: 230px; object-fit: cover; transition: transform 620ms cubic-bezier(.16, 1, .3, 1); }
.archive-case--wide > img { height: 300px; }
.archive-case--tall > img { height: 62%; min-height: 400px; }
.archive-case:hover > img { transform: scale(1.025); }
.archive-case > div { padding: 23px 24px 26px; }
.archive-case > div > span { color: var(--red); font-size: 12px; font-weight: 700; }
.archive-case h3 { margin-top: 8px; font-size: 23px; }
.archive-case p { margin-top: 10px; color: var(--ink-soft); }
.archive-case strong { display: block; margin-top: 18px; color: var(--ink-faint); font-size: 12px; }
.archive-case button { min-height: 44px; display: inline-flex; align-items: center; margin-top: 10px; padding: 0 0 3px; border: 0; border-bottom: 1px solid currentColor; background: transparent; cursor: pointer; font-size: 13px; font-weight: 700; }

.case-empty { margin-top: 40px; padding: 52px; border: 1px dashed var(--line-strong); border-radius: var(--radius-card); background: #fff; text-align: center; }
.case-empty h3 { font-size: 28px; }
.case-empty p { margin: 8px 0 24px; color: var(--ink-soft); }
.case-empty .button + .button { margin-left: 10px; }

.evidence-rules-section { padding: 120px 0; background: var(--canvas); }
.evidence-rules-grid { display: grid; grid-template-columns: minmax(320px, .66fr) minmax(620px, 1.34fr); gap: 84px; }
.evidence-rules-grid h2 { font-size: clamp(44px, 4.4vw, 62px); letter-spacing: -.045em; }
.evidence-rules-grid > div:first-child p { max-width: 480px; margin-top: 18px; color: var(--ink-soft); }
.evidence-rules { display: grid; gap: 12px; }
.evidence-rules article { min-height: 110px; display: grid; grid-template-columns: 160px 1fr; align-items: center; gap: 24px; padding: 22px 25px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.evidence-rules span { color: var(--red); font-weight: 750; }
.evidence-rules p { color: var(--ink-soft); }

.case-dialog__body { padding: 72px 48px 48px; }
.case-dialog__body > span { color: var(--red); font-size: 13px; font-weight: 700; }
.case-dialog__body h2 { margin-top: 7px; font-size: 22px; }
.case-dialog__body h3 { margin-top: 18px; font-size: clamp(30px, 4vw, 44px); letter-spacing: -.03em; }
.case-dialog__body dl { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 30px; }
.case-dialog__body dl div { padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.case-dialog__body dt { color: var(--ink-faint); font-size: 12px; }
.case-dialog__body dd { margin-top: 7px; color: var(--ink-soft); font-size: 14px; }
.case-dialog__body .button { margin-top: 28px; }

/* About page */
.about-hero {
  background: var(--paper);
}

.about-hero__grid { min-height: 610px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(500px, 1fr); align-items: center; gap: 78px; padding: 70px 0; }
.about-system-visual { min-width: 0; width: 100%; max-width: 620px; justify-self: center; }
.about-system-visual__art { height: 300px; }
.about-system-visual__art > img { display: block; width: 100%; height: 100%; object-fit: cover; mix-blend-mode: multiply; mask-image: radial-gradient(ellipse 65% 76% at center, #000 35%, transparent 80%); }
.about-system-visual__links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 20px; padding-top: 22px; border-top: 1px solid var(--line); }
.about-system-visual__links a { display: grid; grid-template-columns: 24px minmax(0, 1fr) 18px; align-items: center; gap: 14px; min-height: 78px; padding: 12px; border-radius: var(--radius-control); color: var(--ink); text-decoration: none; }
.about-system-visual__links strong { display: block; font-size: 17px; font-weight: 650; }
.about-system-visual__links small { display: block; margin-top: 5px; font-size: 13px; line-height: 1.5; color: var(--ink-soft); }
.about-system-visual__arrow { opacity: .55; }
.about-system-visual__links a:is(:hover,:focus-visible) { background: #fff; color: var(--red); box-shadow: 0 8px 20px rgba(62,50,43,.06); }
.about-system-visual__links a:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }
@media (prefers-reduced-motion: no-preference) {
  .about-system-visual__links a,
  .about-system-visual__arrow { transition: transform 220ms var(--motion-ease), opacity 220ms var(--motion-ease); }
  .about-system-visual__links a:is(:hover,:focus-visible) { transform: translateY(-3px); }
  .about-system-visual__links a:is(:hover,:focus-visible) .about-system-visual__arrow { opacity: 1; transform: translateX(3px); }
  .about-system-visual__links a:active { transform: translateY(0); }
}
@media (max-width: 650px) {
  .about-system-visual__art { height: auto; aspect-ratio: 3 / 2; }
  .about-system-visual__links { grid-template-columns: 1fr; gap: 4px; padding-top: 16px; }
  .about-system-visual__links a { min-height: 72px; padding-inline: 10px; }
}

.brand-judgement-section { padding: 120px 0; background: var(--canvas); }
.brand-judgement-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(400px, .85fr); align-items: center; gap: 90px; }
.brand-judgement-copy h2 { font-size: clamp(45px, 4.7vw, 67px); letter-spacing: -.045em; }
.brand-judgement-copy p { max-width: 720px; margin-top: 24px; color: var(--ink-soft); font-size: 17px; line-height: 1.8; }
.brand-judgement-quote { margin: 0; padding: 42px; border-left: 4px solid var(--red); background: #fff; box-shadow: var(--shadow-soft); }
.brand-judgement-quote p { font-size: 25px; line-height: 1.55; font-weight: 680; }
.brand-judgement-quote footer { margin-top: 24px; color: var(--ink-faint); font-size: 13px; }

.maturity-section { padding: 126px 0; background: var(--paper); }
.maturity-path { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 55px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; overflow: hidden; }
.maturity-path article { min-height: 310px; display: flex; flex-direction: column; padding: 28px; border-left: 1px solid var(--line); }
.maturity-path article:first-child { border-left: 0; }
.maturity-path article > span { color: var(--ink-faint); font-size: 13px; }
.maturity-path article strong { margin-top: 34px; font-size: 25px; }
.maturity-path article p { margin-top: 14px; color: var(--ink-soft); }
.maturity-path article small { margin-top: auto; padding-top: 22px; border-top: 1px solid var(--line); color: var(--ink-faint); }
.maturity-path__active { background: var(--red); color: #fff; }
.maturity-path__active > span,
.maturity-path__active p,
.maturity-path__active small { color: #fff0f1 !important; }
.maturity-path__active small { border-color: rgba(255, 255, 255, .24) !important; }

.about-principles-section { padding: 128px 0; background: var(--canvas); }
.about-principles-grid { display: grid; grid-template-columns: minmax(370px, .78fr) minmax(580px, 1.22fr); gap: 72px; }
.about-principles-intro h2 { margin-top: 18px; font-size: clamp(44px, 4.4vw, 62px); letter-spacing: -.045em; }
.about-principles-intro > p:not(.section-kicker) { margin-top: 20px; color: var(--ink-soft); }
.about-principles-tabs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 34px; }
.about-principles-tabs button { min-height: 128px; display: grid; grid-template-columns: 38px 1fr; align-content: center; gap: 4px 10px; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer; text-align: left; }
.about-principles-tabs button:hover,
.about-principles-tabs button.is-active { border-color: var(--red); background: rgba(207, 21, 32, .04); }
.about-principles-tabs button > span { grid-row: 1 / span 2; color: var(--red); font-size: 12px; }
.about-principles-tabs strong { font-size: 17px; }
.about-principles-tabs small { color: var(--ink-faint); }
.about-principles-evidence { display: grid; grid-template-rows: auto 1fr; gap: 14px; }
.about-principles-evidence > article { min-height: 235px; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.about-principles-evidence > article > span { color: var(--red); font-size: 13px; font-weight: 700; }
.about-principles-evidence h3 { margin-top: 10px; font-size: 34px; }
.about-principles-evidence article p { margin-top: 12px; color: var(--ink-soft); }
.about-principles-evidence article strong { display: block; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); }
.about-principles-evidence figure { position: relative; min-height: 370px; overflow: hidden; border-radius: var(--radius-card); }
.about-principles-evidence figure img { width: 100%; height: 100%; object-fit: cover; }
.about-principles-evidence figcaption { position: absolute; right: 0; bottom: 0; left: 0; padding: 35px 18px 14px; background: linear-gradient(transparent, rgba(10, 10, 10, .72)); color: #f2f0eb; font-size: 12px; }

.about-proof-section { padding: 120px 0; background: var(--dark); color: var(--off-white); }
.about-proof-grid { display: grid; grid-template-columns: minmax(350px, .7fr) minmax(600px, 1.3fr); align-items: center; gap: 80px; }
.about-proof-copy h2 { font-size: clamp(44px, 4.5vw, 64px); letter-spacing: -.045em; }
.about-proof-copy p { max-width: 500px; margin-top: 20px; color: #aaa59e; }
.about-proof-metrics { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid rgba(255, 255, 255, .18); border-radius: var(--radius-card); overflow: hidden; }
.about-proof-metrics article { min-height: 210px; display: flex; flex-direction: column; align-items: center; justify-content: center; border-left: 1px solid rgba(255, 255, 255, .14); }
.about-proof-metrics article:first-child { border-left: 0; }
.about-proof-metrics strong { font-size: clamp(45px, 4.5vw, 65px); letter-spacing: -.05em; }
.about-proof-metrics span { color: #aaa59e; }

.method-assets-section { padding: 128px 0; background: var(--paper); }
.method-assets-grid { display: grid; grid-template-columns: minmax(330px, .68fr) minmax(620px, 1.32fr); gap: 80px; }
.method-assets-copy h2 { font-size: clamp(44px, 4.4vw, 62px); letter-spacing: -.045em; }
.method-assets-copy p { max-width: 490px; margin-top: 20px; color: var(--ink-soft); }
.method-assets-copy .text-link { margin-top: 28px; }
.method-assets-board { display: grid; grid-template-columns: 1.1fr .9fr; grid-template-rows: repeat(2, minmax(220px, auto)); gap: 14px; }
.method-asset { display: flex; flex-direction: column; justify-content: flex-end; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.method-asset > span { color: var(--red); font-size: 12px; font-weight: 700; }
.method-asset h3 { margin-top: 8px; font-size: 27px; }
.method-asset p { margin-top: 10px; color: var(--ink-soft); }
.method-asset--workflow { grid-row: span 2; background: var(--dark); color: var(--off-white); }
.method-asset--workflow > span { color: #f2777e; }
.method-asset--workflow > div { display: grid; gap: 8px; margin-top: 30px; }
.method-asset--workflow i { font-style: normal; font-weight: 700; }
.method-asset--workflow b { width: 2px; height: 24px; margin-left: 14px; background: var(--red); }
.method-asset--team { background: rgba(207, 21, 32, .055); }
.team-boundary { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line); }
.team-boundary strong { color: var(--ink); }
.team-boundary p { margin-top: 5px; }

.final-cta--soft { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.final-cta--soft > div:first-child > span { color: var(--red); }
.final-cta--soft p { color: var(--ink-soft); }
.final-cta--soft .final-cta__action > a:last-child { color: var(--ink-soft); border-bottom: 1px solid currentColor; padding-bottom: 3px; }

/* Contact page */
.contact-hero {
  min-height: 570px;
  background:
    linear-gradient(110deg, transparent 0 62%, rgba(207, 21, 32, .08) 62% 100%),
    var(--paper);
}

.contact-hero__grid { min-height: 500px; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(370px, .85fr); align-items: center; gap: 90px; padding: 64px 0; }
.contact-hero__contact { display: grid; border: 1px solid var(--line); border-radius: var(--radius-card); background: rgba(255, 255, 255, .86); overflow: hidden; box-shadow: var(--shadow-soft); }
.contact-hero__contact a { min-height: 110px; display: flex; flex-direction: column; justify-content: center; padding: 26px 30px; border-top: 1px solid var(--line); text-decoration: none; }
.contact-hero__contact a:first-child { border-top: 0; }
.contact-hero__contact a:hover { background: rgba(207, 21, 32, .035); }
.contact-hero__contact span { color: var(--ink-faint); font-size: 12px; }
.contact-hero__contact strong { margin-top: 4px; font-size: 22px; }

.contact-process-section { padding: 0 0 82px; background: var(--paper); }
.contact-process { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; overflow: hidden; list-style: none; counter-reset: contact-process; }
.contact-process li { min-height: 150px; padding: 26px; border-left: 1px solid var(--line); counter-increment: contact-process; }
.contact-process li:first-child { border-left: 0; }
.contact-process li::before { content: "0" counter(contact-process); display: block; color: var(--red); font-size: 12px; font-weight: 800; }
.contact-process span { display: block; margin-top: 20px; font-size: 19px; font-weight: 750; }
.contact-process p { margin-top: 7px; color: var(--ink-soft); font-size: 14px; }

.contact-main-section { scroll-margin-top: calc(var(--nav-height) + 24px); padding: 120px 0; background: var(--canvas); }
.contact-main-grid { display: grid; grid-template-columns: minmax(380px, .78fr) minmax(620px, 1.22fr); gap: 72px; align-items: start; }
.contact-information__intro h2 { margin-top: 16px; font-size: clamp(44px, 4.4vw, 62px); letter-spacing: -.045em; }
.contact-information__intro > p:not(.section-kicker) { margin-top: 20px; color: var(--ink-soft); }
.contact-information__list { display: grid; margin-top: 36px; border-top: 1px solid var(--line-strong); }
.contact-information__list article { display: grid; grid-template-columns: 105px 1fr; padding: 20px 0; border-bottom: 1px solid var(--line); }
.contact-information__list article > span { color: var(--ink-faint); font-size: 12px; }
.contact-information__list a,
.contact-information__list address { font-size: 17px; font-weight: 700; text-decoration: none; }
.contact-information__list small { grid-column: 2; margin-top: 5px; color: var(--ink-faint); }
.contact-map-card { position: relative; min-height: 210px; margin-top: 24px; overflow: hidden; padding: 28px; border-radius: var(--radius-card); background: var(--dark); color: var(--off-white); }
.contact-map-card > span { color: #f2777e; font-size: 13px; font-weight: 700; }
.contact-map-card strong { display: block; margin-top: 8px; font-size: 25px; }
.contact-map-card p { max-width: 360px; margin-top: 18px; color: #aaa59e; font-size: 13px; }
.contact-map-card i { position: absolute; right: -40px; bottom: -80px; width: 240px; height: 240px; border: 1px solid rgba(207, 21, 32, .65); border-radius: 50%; box-shadow: inset 0 0 0 34px rgba(207, 21, 32, .07), inset 0 0 0 68px rgba(207, 21, 32, .05); }

.diagnosis-form-panel { padding: 42px; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: 0 28px 80px rgba(48, 40, 36, .09); }
.diagnosis-form-panel__head > span { color: var(--red); font-size: 13px; font-weight: 700; }
.diagnosis-form-panel__head h2 { margin-top: 8px; font-size: clamp(35px, 4vw, 52px); letter-spacing: -.04em; }
.diagnosis-form-panel__head p { margin-top: 10px; color: var(--ink-faint); }

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 18px; margin-top: 34px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label,
.field > label { font-size: 13px; font-weight: 700; }
.field input,
.field textarea,
.field select { width: 100%; border: 1px solid var(--line-strong); border-radius: var(--radius-control); background: var(--paper); color: var(--ink); }
.field input,
.field select { min-height: 50px; padding: 0 13px; }
.field textarea { min-height: 170px; resize: vertical; padding: 13px; line-height: 1.65; }
.field input:focus,
.field textarea:focus,
.field select:focus { border-color: var(--red); background: #fff; }
.field [aria-invalid="true"] { border-color: var(--red); box-shadow: 0 0 0 3px rgba(207, 21, 32, .08); }
.field-helper { color: var(--ink-faint); font-size: 12px; }
.field-error { min-height: 18px; color: #a90e17; font-size: 12px; }
.consent { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; color: var(--ink-soft); font-size: 12px; }
.consent input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--red); }
.form-submit { width: 100%; margin-top: 24px; }
.form-submit:disabled { cursor: wait; opacity: .68; }
.form-status { min-height: 24px; margin-top: 13px; padding-left: 15px; border-left: 2px solid var(--line-strong); color: var(--ink-faint); font-size: 12px; }
.form-status[data-state="loading"] { border-color: #907e54; color: #665936; }
.form-status[data-state="success"] { border-color: var(--green); color: #42624a; }
.form-status[data-state="error"] { border-color: var(--red); color: var(--red-deep); }

.contact-boundary-section { padding: 115px 0; background: var(--paper); }
.contact-boundary-grid { display: grid; grid-template-columns: minmax(300px, .62fr) minmax(650px, 1.38fr); gap: 82px; }
.contact-boundary-grid h2 { font-size: clamp(42px, 4.2vw, 60px); letter-spacing: -.04em; }
.contact-boundary-list { display: grid; gap: 12px; }
.contact-boundary-list article { display: grid; grid-template-columns: 130px 1fr; gap: 22px; padding: 22px 25px; border: 1px solid var(--line); border-radius: var(--radius-card); background: #fff; }
.contact-boundary-list span { color: var(--red); font-weight: 750; }
.contact-boundary-list p { color: var(--ink-soft); }

/* Responsive */
@media (min-width: 1100px) {
  .home-page { overflow: hidden; }
  .home-page main { height: 100dvh; overflow-y: auto; overscroll-behavior-y: contain; scroll-snap-type: y mandatory; scroll-behavior: smooth; }
  .home-page main.is-reading { scroll-snap-type: y proximity; }
  .home-page .site-footer { scroll-snap-align: none; }
}

@media (max-width: 1240px) {
  :root { --page: min(1120px, calc(100vw - 56px)); }
  .home-hero__grid { grid-template-columns: minmax(0, .95fr) minmax(500px, 1.05fr); }
  .system-map { width: 100%; margin-left: 0; transform: scale(.94); }
  .label-two { right: 0; }
  .feedback-shell,
  .principles-shell,
  .solution-block__grid,
  .enterprise-shell,
  .method-assets-grid,
  .contact-main-grid { gap: 48px; }
  .system-definition__shell { grid-template-columns: 330px minmax(0, 1fr); gap: 45px; }
  .system-node button { width: 188px; }
  .department-workflow { gap: 10px; padding: 24px; }
  .department-workflow > i { width: 14px; }
}

@media (max-width: 1100px) {
  :root { --page: calc(100vw - 44px); }
  .desktop-nav { gap: 22px; }
  .home-hero__grid { grid-template-columns: minmax(0, .92fr) minmax(490px, 1.08fr); }
  .home-hero__copy h1 { font-size: 56px; }
  .system-map { transform: scale(.88); transform-origin: center; }
  .proof-shell { padding-inline: 54px; }
  .proof-practice > * { padding-inline: 18px; }
  .service-depths { height: 480px; }
  .scene-grid { grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(4, 210px); }
  .scene-card--feature { grid-column: 1 / span 2; }
  .scene-card--wide { grid-column: auto; }
  .scene-card--photo { grid-column: 2 / span 2; }
  .feedback-shell { grid-template-columns: 340px minmax(0, 1fr); }
  .home-cases-grid { grid-template-columns: 1.55fr .8fr; }
  .principles-shell { grid-template-columns: 380px minmax(0, 1fr); }
  .inner-hero__grid,
  .about-hero__grid,
  .cases-hero__grid,
  .contact-hero__grid { gap: 48px; }
  .case-archive-grid { grid-template-columns: repeat(2, 1fr); }
  .archive-case--wide { grid-column: span 2; }
  .archive-case--tall { grid-row: auto; }
  .archive-case--tall > img { height: 260px; min-height: 0; }
}

@media (min-width: 1100px) and (max-height: 820px) {
  .home-hero__grid { padding-block: 24px 32px; }
  .home-hero__copy .hero-kicker { margin-bottom: 15px; }
  .home-hero__copy h1 { margin-bottom: 12px; font-size: clamp(52px, 4.4vw, 62px); }
  .hero-summary { font-size: 18px; }
  .hero-composer { margin-top: 26px; padding: 14px; }
  .hero-composer input,
  .hero-composer__row button { min-height: 54px; }
  .hero-suggestions button { min-height: 42px; }
  .system-map { height: calc(100dvh - 120px); transform: scale(.88); transform-origin: center; }
  .map-label strong { font-size: 16px; }
  .map-label span { font-size: 12px; }
  .label-two,
  .label-three { right: 2%; }
  .proof-section { padding: calc(var(--nav-height) + 14px) 0 16px; }
  .proof-shell { min-height: calc(100dvh - var(--nav-height) - 30px); padding: 34px 68px 26px; }
  .proof-copy h2 { margin-top: 14px; font-size: clamp(50px, 4.4vw, 58px); }
  .proof-copy > p:last-child { margin-top: 10px; font-size: 16px; }
  .proof-metrics { margin-top: 28px; }
  .proof-metrics article { min-height: 126px; }
  .proof-metrics strong { font-size: 52px; }
  .proof-practice { margin-top: 24px; padding-top: 18px; }
  .system-definition-section { padding: calc(var(--nav-height) + 12px) 0 18px; }
  .system-definition__map { min-height: 535px; }
  .system-definition__shell .section-heading h2 { font-size: 48px; }
  .system-definition__shell .section-heading p { margin-top: 12px; font-size: 15px; }
  .system-node button { min-height: 100px; padding: 17px 19px; }
  .system-definition__core { min-height: 170px; padding: 25px; }
  .service-depths-section { padding: calc(var(--nav-height) + 10px) 0 16px; }
  .service-depths__shell .section-heading h2 { font-size: 49px; }
  .service-depths__shell .section-heading p { font-size: 15px; line-height: 1.65; }
  .service-depths { height: 395px; margin-top: 22px; }
  .service-depth__content { padding: 23px; }
  .service-depth__content h3 { font-size: 30px; }
  .service-depth__content p { margin-top: 8px; font-size: 14px; }
  .service-depth__content a { margin-top: 12px; }
}

@media (max-width: 1099px) {
  :root { --page: calc(100vw - 40px); --nav-height: 62px; }
  html { scroll-snap-type: none; }
  .home-page { overflow: visible; }
  .home-page main { height: auto; overflow: visible; }
  .desktop-nav,
  .header-cta { display: none; }
  .site-header__inner { grid-template-columns: 1fr auto; }
  .menu-button { width: 48px; height: 44px; display: grid; align-content: center; gap: 6px; padding: 0 12px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, .68); cursor: pointer; }
  .menu-button span { display: block; height: 1.5px; background: currentColor; }

  .snap-screen { scroll-snap-align: none; }
  .home-hero { min-height: auto; }
  .home-hero__grid { min-height: auto; grid-template-columns: 1fr; gap: 16px; padding: 90px 0 54px; }
  .home-hero__copy { max-width: 760px; }
  .home-hero__copy h1 { font-size: clamp(52px, 8vw, 70px); white-space: normal; }
  .system-map { width: min(760px, 100%); height: 620px; margin: -18px auto 0; transform: none; }
  .label-two { right: 4%; }
  .label-three { right: 4%; }

  .proof-section,
  .system-definition-section,
  .service-depths-section { min-height: auto; padding: 100px 0; }
  .proof-shell { min-height: 0; padding: 62px 46px; }
  .system-definition__shell { grid-template-columns: 1fr; }
  .system-definition__map { min-height: 640px; }
  .service-depths__shell .section-heading { grid-template-columns: 1fr; gap: 12px; }
  .service-depths__shell .section-heading p { margin-top: 0; }
  .service-depths { height: auto; grid-template-columns: 1fr !important; }
  .service-depth { min-height: 300px; }
  .service-depth:not(.is-active) > img { filter: grayscale(.65) contrast(1.02) brightness(.7); }
  .service-depth__content p,
  .service-depth__content a { opacity: 1; transform: none; }
  .service-depth__content button { display: none; }
  .service-depth__flow { opacity: 1; transform: none; }

  .section-heading--wide,
  .case-heading { grid-template-columns: 1fr; gap: 22px; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(5, 220px); }
  .scene-card--feature { grid-row: span 2; grid-column: span 1; }
  .scene-card--wide { grid-column: span 1; }
  .scene-card--photo { grid-column: span 1; }
  .feedback-shell { grid-template-columns: 1fr; }
  .feedback-copy { max-width: 720px; }
  .home-cases-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .home-case--feature { grid-column: 1 / -1; grid-row: auto; }
  .principles-shell { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1.35fr 1fr 1fr; }
  .footer-contact { grid-column: 2 / span 2; }

  .inner-hero,
  .contact-hero { min-height: auto; }
  .inner-hero__grid,
  .about-hero__grid,
  .cases-hero__grid,
  .contact-hero__grid { min-height: 0; grid-template-columns: 1fr; padding: 90px 0 72px; }
  .stage-visual { height: auto; min-height: 390px; }
  .solution-block__grid,
  .solution-block__grid--media,
  .enterprise-shell,
  .cooperation-grid,
  .faq-grid,
  .evidence-rules-grid,
  .brand-judgement-grid,
  .about-principles-grid,
  .about-proof-grid,
  .method-assets-grid,
  .contact-main-grid,
  .contact-boundary-grid { grid-template-columns: 1fr; }
  .solution-block__intro { position: static; }
  .solution-media { min-height: 430px; grid-row: auto; }
  .department-workflow { grid-template-columns: repeat(4, 1fr); }
  .department-workflow > i { display: none; }
  .method-explorer { grid-template-columns: 1fr; }
  .method-steps { grid-template-columns: repeat(7, minmax(118px, 1fr)); overflow-x: auto; }
  .method-steps button { min-height: 178px; }
  .method-steps strong { writing-mode: horizontal-tb; }
  .enterprise-deliverables { grid-template-columns: repeat(2, 1fr); }
  .enterprise-deliverables article:nth-child(3) { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .14); }
  .enterprise-deliverables article:nth-child(4) { border-top: 1px solid rgba(255, 255, 255, .14); }
  .featured-case { grid-template-columns: 1fr; grid-template-rows: auto; height: auto; }
  .featured-case__media,
  .featured-case__detail { aspect-ratio: 848 / 572; }
  .featured-case__copy,
  .featured-case__facts { padding: 32px; }
  .maturity-path { grid-template-columns: repeat(2, 1fr); }
  .maturity-path article:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .maturity-path article:nth-child(4) { border-top: 1px solid var(--line); }
  .about-proof-metrics { max-width: 760px; }
}

@media (max-width: 767px) {
  :root { --page: calc(100vw - 28px); --nav-height: 60px; }
  body { padding-bottom: calc(58px + env(safe-area-inset-bottom)); }
  .brand { width: 104px; }
  .site-header__inner { width: var(--page); }
  .support-dock { display: none; }
  .mobile-action-bar { position: fixed; z-index: 95; right: 0; bottom: 0; left: 0; min-height: calc(58px + env(safe-area-inset-bottom)); display: grid; grid-template-columns: 1fr 1.25fr; padding-bottom: env(safe-area-inset-bottom); border-top: 1px solid var(--line); background: rgba(251, 250, 247, .96); backdrop-filter: blur(14px); }
  .mobile-action-bar a { display: flex; align-items: center; justify-content: center; font-weight: 700; text-decoration: none; }
  .mobile-action-bar a:last-child { margin: 7px; border-radius: 8px; background: var(--red); color: #fff; }

  .section-heading h2,
  .case-heading h2,
  .feedback-copy h2,
  .principles-copy h2,
  .about-principles-intro h2 { font-size: 40px; line-height: 1.12; }
  .section-heading p { font-size: 16px; }
  .section-kicker,
  .hero-kicker { font-size: 15px; }
  .section-heading--wide { display: block; }
  .section-heading--wide p { margin-top: 16px; }

  .home-hero__grid { padding-top: 74px; }
  .home-hero__copy .hero-kicker { margin-bottom: 14px; }
  .home-hero__copy h1 { margin-bottom: 14px; font-size: 43px; line-height: 1.1; }
  .hero-summary { font-size: 17px; }
  .hero-composer { margin-top: 30px; padding: 13px; }
  .hero-composer__row { grid-template-columns: 1fr; }
  .hero-composer input,
  .hero-composer__row button { min-height: 54px; }
  .hero-suggestions { grid-template-columns: repeat(2, 1fr); }
  .system-map { height: 430px; margin-top: 8px; transform: scale(1.08); transform-origin: center top; }
  .map-label { min-width: 120px; }
  .map-label strong { gap: 5px; font-size: 12px; }
  .map-label b { font-size: 12px; }
  .map-label span { display: none; }
  .label-one { top: 16%; right: 12%; }
  .label-two { top: 36%; right: 0; }
  .label-three { top: 60%; right: 1%; }
  .label-four { right: 24%; bottom: 2%; min-width: 142px; }

  .proof-section,
  .system-definition-section,
  .service-depths-section,
  .scene-section,
  .feedback-section,
  .home-cases-section,
  .principles-section { padding: 82px 0; }
  .proof-shell { padding: 38px 22px; border-radius: 20px; }
  .proof-copy h2 { font-size: 42px; }
  .proof-metrics { grid-template-columns: 1fr; margin-top: 40px; }
  .proof-metrics article { min-height: 130px; }
  .proof-metrics article + article { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .18); }
  .proof-metrics strong { font-size: 52px; }
  .proof-practice { grid-template-columns: repeat(2, 1fr); gap: 14px 0; }
  .proof-practice > * { min-height: 36px; padding-inline: 12px; }
  .proof-practice > *:first-child { grid-column: 1 / -1; }

  .system-definition__map { min-height: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 12px; }
  .system-definition__map::before { inset: 18% 0 0; }
  .system-definition__core { position: relative; top: auto; left: auto; grid-column: 1 / -1; order: 2; width: 100%; min-height: 220px; transform: none; }
  .system-definition__paths { display: none; }
  .system-definition__tabs { position: static; grid-column: 1 / -1; order: 1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .system-node,
  .system-node--diagnose,
  .system-node--plan,
  .system-node--execute,
  .system-node--review { position: static; inset: auto !important; }
  .system-node button { width: 100%; min-height: 112px; grid-template-columns: 30px 1fr; padding: 15px 14px; }
  .system-node button > span { grid-row: 1 / span 2; }
  .system-node button strong { font-size: 16px; }
  .system-node button small { font-size: 12px; }
  .system-definition__panel { display: none; }

  .service-depths { margin-top: 34px; }
  .service-depth { min-height: 360px; }
  .service-depth__content { padding: 24px; }
  .service-depth__content h3 { font-size: 28px; }
  .service-depth__flow { right: 16px; left: 16px; justify-content: center; }
  .service-depth__flow span { font-size: 12px; }

  .scene-grid { grid-template-columns: 1fr; grid-template-rows: none; }
  .scene-card,
  .scene-card--feature,
  .scene-card--photo { min-height: 220px; grid-row: auto; grid-column: auto; }
  .scene-card--feature { min-height: 370px; }
  .scene-card--photo { min-height: 300px; }
  .content-dialog__body,
  .case-dialog__body { padding: 66px 22px 28px; }

  .feedback-board { min-height: 0; padding: 20px; }
  .feedback-board__head { display: block; }
  .feedback-board__head span { display: block; margin-top: 4px; }
  .feedback-loop { height: 360px; }
  .feedback-loop::before,
  .feedback-loop__path { width: 190px; height: 260px; }
  .feedback-step { width: 120px; min-height: 70px; }
  .feedback-step--one { top: 20px; left: 0; }
  .feedback-step--two { top: 20px; right: 0; left: auto; }
  .feedback-step--three { top: auto; right: 0; bottom: 20px; }
  .feedback-step--four { bottom: 20px; left: 0; }
  .feedback-metrics { grid-template-columns: repeat(2, 1fr); }
  .feedback-metrics button:nth-child(3) { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .12); }
  .feedback-metrics button:nth-child(4) { border-top: 1px solid rgba(255, 255, 255, .12); }
  .feedback-panel { grid-template-columns: 1fr; }

  .case-heading { display: block; }
  .case-heading > div:last-child { margin-top: 20px; }
  .home-cases-grid { grid-template-columns: 1fr; }
  .home-case--feature { grid-column: auto; }
  .home-case--feature > a { grid-template-rows: 270px auto; }
  .home-case__inset { right: 14px; bottom: 14px; width: 42%; border-width: 3px; }

  .principle-evidence { grid-template-columns: 1fr; }
  .principle-evidence__panel { min-height: 300px; }
  .principle-evidence__photo { min-height: 310px; }
  .principle-evidence__photo img { min-height: 310px; }
  .principle-evidence__flow { grid-column: auto; flex-wrap: wrap; }
  .principle-evidence__flow i { max-width: 28px; }

  .final-cta-section { padding: 42px 0; }
  .final-cta { min-height: 0; grid-template-columns: 1fr; gap: 34px; padding: 46px 24px; }
  .final-cta h2 { font-size: 43px; }
  .final-cta p { font-size: 16px; }
  .final-cta__action { width: 100%; }
  .final-cta__action .button { width: 100%; min-width: 0; }

  .site-footer { padding: 60px 0 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px 26px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }
  .footer-bottom { display: grid; gap: 6px; margin-top: 44px; }

  .inner-hero__grid,
  .about-hero__grid,
  .cases-hero__grid,
  .contact-hero__grid { padding: 68px 0 54px; }
  .inner-hero h1 { font-size: 44px; }
  .inner-hero__copy > p { font-size: 16px; }
  .breadcrumb { margin-bottom: 24px; }
  .stage-visual { min-height: 0; grid-template-columns: 1fr; align-items: stretch; gap: 10px; padding: 20px 0 0; }
  .stage-visual__axis { display: none; }
  .stage-visual article,
  .stage-visual article:nth-of-type(1),
  .stage-visual article:nth-of-type(2),
  .stage-visual article:nth-of-type(3) { min-height: 130px; }
  .stage-visual article::after { display: none; }
  .section-nav__inner { width: auto; padding-inline: 14px; }
  .section-nav { top: var(--nav-height); }
  .solution-block,
  .method-explorer-section,
  .comparison-section,
  .cooperation-section,
  .faq-section { padding: 82px 0; }
  .solution-block__intro h2,
  .enterprise-intro h2 { font-size: 40px; }
  .deliverable-grid { grid-template-columns: 1fr; }
  .solution-media { min-height: 330px; }
  .department-workflow { grid-template-columns: 1fr; }
  .department-workflow article { padding: 16px; border-bottom: 1px solid var(--line); }
  .department-workflow article:last-of-type { border-bottom: 0; }
  .solution-result-strip { grid-template-columns: 1fr; }
  .enterprise-architecture { min-height: 430px; }
  .enterprise-layer { width: 90%; grid-template-columns: 90px 1fr; }
  .enterprise-layer--middle { width: 96%; }
  .enterprise-layer--base { width: 100%; }
  .enterprise-deliverables { grid-template-columns: 1fr; }
  .enterprise-deliverables article { min-height: 120px; border-left: 0; border-top: 1px solid rgba(255, 255, 255, .14); }
  .enterprise-deliverables article:first-child { border-top: 0; }
  .method-steps { grid-template-columns: repeat(7, 124px); }
  .method-panel { min-height: 250px; }
  .comparison-scroll-hint { display: block; margin: 24px 0 10px; color: var(--ink-faint); font-size: 13px; }
  .comparison-table-wrap { margin-top: 0; margin-right: -14px; border-radius: 12px 0 0 12px; }
  .cooperation-steps { grid-template-columns: 1fr; }
  .faq-list summary { min-height: 72px; font-size: 16px; }

  .case-evidence-brief { padding: 24px; }
  .featured-case-section,
  .case-archive-section,
  .evidence-rules-section { padding: 82px 0; }
  .featured-case__copy,
  .featured-case__facts { padding: 28px 24px; }
  .featured-case__facts dl div { grid-template-columns: 1fr; gap: 6px; }
  .case-toolbar { grid-template-columns: 1fr; gap: 24px; }
  .case-toolbar h2 { font-size: 40px; }
  .case-archive-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .archive-case--wide { grid-column: auto; }
  .archive-case > img,
  .archive-case--wide > img,
  .archive-case--tall > img { height: 240px; }
  .evidence-rules article { grid-template-columns: 1fr; gap: 7px; }
  .case-dialog__body dl { grid-template-columns: 1fr; }

  .brand-judgement-section,
  .maturity-section,
  .about-principles-section,
  .about-proof-section,
  .method-assets-section { padding: 82px 0; }
  .brand-judgement-copy h2,
  .about-proof-copy h2,
  .method-assets-copy h2 { font-size: 40px; }
  .brand-judgement-quote { padding: 28px; }
  .brand-judgement-quote p { font-size: 21px; }
  .maturity-path { grid-template-columns: 1fr; }
  .maturity-path article { min-height: 240px; border-left: 0; border-top: 1px solid var(--line); }
  .maturity-path article:first-child { border-top: 0; }
  .about-principles-tabs { grid-template-columns: 1fr; }
  .about-principles-evidence figure { min-height: 320px; }
  .about-proof-metrics { grid-template-columns: 1fr; }
  .about-proof-metrics article { min-height: 135px; border-left: 0; border-top: 1px solid rgba(255, 255, 255, .14); }
  .about-proof-metrics article:first-child { border-top: 0; }
  .method-assets-board { grid-template-columns: 1fr; grid-template-rows: none; }
  .method-asset,
  .method-asset--workflow { min-height: 210px; grid-row: auto; }

  .contact-process-section { padding-bottom: 60px; }
  .contact-process { grid-template-columns: 1fr; }
  .contact-process li { min-height: 120px; border-left: 0; border-top: 1px solid var(--line); }
  .contact-process li:first-child { border-top: 0; }
  .contact-main-section,
  .contact-boundary-section { padding: 82px 0; }
  .contact-information__intro h2,
  .contact-boundary-grid h2 { font-size: 40px; }
  .diagnosis-form-panel { padding: 28px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .field--full { grid-column: auto; }
  .contact-boundary-list article { grid-template-columns: 1fr; gap: 7px; }
}

@media (max-width: 420px) {
  :root { --page: calc(100vw - 24px); }
  .home-hero__copy h1,
  .inner-hero h1,
  .final-cta h2 { font-size: 39px; }
  .system-map { height: 390px; transform: scale(1.14); }
  .map-label strong { font-size: 12px; }
  .proof-copy h2,
  .section-heading h2,
  .case-heading h2,
  .feedback-copy h2,
  .principles-copy h2,
  .solution-block__intro h2,
  .enterprise-intro h2,
  .brand-judgement-copy h2,
  .about-principles-intro h2,
  .about-proof-copy h2,
  .method-assets-copy h2,
  .contact-information__intro h2,
  .contact-boundary-grid h2 { font-size: 36px; }
  .proof-shell { padding-inline: 18px; }
  .service-depth__flow { gap: 5px; padding-inline: 8px; }
  .service-depth__flow i { width: 10px; }
  .principle-tabs button { grid-template-columns: 42px 1fr; }
  .case-empty { padding: 34px 18px; }
  .case-empty .button { width: 100%; }
  .case-empty .button + .button { margin: 10px 0 0; }
  .contact-information__list article { grid-template-columns: 84px 1fr; }
}

/* Homepage audit corrections: one type scale, stable panels and bounded media. */
.home-page :is(.proof-copy, .section-heading, .feedback-copy, .case-heading, .principles-copy) h2 {
  font-size: var(--section-title);
  line-height: 1.22;
  letter-spacing: -.035em;
  text-wrap: pretty;
}
.home-page :is(.section-heading, .feedback-copy, .principles-copy) > p:not(.section-kicker) { font-size: 16px; line-height: 1.7; }
.home-page .final-cta h2 { font-size: clamp(40px, 4.4vw, 60px); line-height: 1.18; }
.system-definition__core { min-height: 260px; }
.system-definition__core p { min-height: 3.2em; }
.system-definition__core > span:last-child { min-height: 3.2em; }
.feedback-panel { min-height: 100px; }
.feedback-panel p { min-height: 3.2em; }
.feedback-board__head span,
.feedback-panel > span { color: #aaa59e; }
.feedback-section.is-running .feedback-step { animation-duration: 360ms; }
.feedback-section.is-running .feedback-step--two { animation-delay: 80ms; }
.feedback-section.is-running .feedback-step--three { animation-delay: 160ms; }
.feedback-section.is-running .feedback-step--four { animation-delay: 240ms; }
.service-depths-section .service-depths { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.service-depths-section .service-depth { transition: border-color 180ms ease; }
.service-depths-section .service-depth.is-active { border-color: var(--red); }
.service-depth__content h3 { font-size: clamp(22px, 2vw, 28px); line-height: 1.3; }
.service-depth__content p { min-height: 3.2em; font-size: 16px; }
.service-depth__content p,
.service-depth__content a { opacity: 1; transform: none; }
.service-depth__content a { min-height: 44px; align-items: center; }
.service-depth__flow { left: 16px; right: 16px; justify-content: center; gap: 5px; padding-inline: 8px; }
.service-depth__flow i { width: 12px; }
.service-depth > img,
.home-case > a > img,
.home-case__media > img:first-child { transition: transform 360ms var(--motion-ease), filter 200ms ease; }
.service-depth.is-active > img,
.home-case:hover > a > img,
.home-case:hover .home-case__media > img:first-child { transform: scale(1.015); }
.home-cases-grid { grid-template-columns: minmax(0, 1.6fr) minmax(0, .9fr); grid-template-rows: auto auto; }
.home-case > a { grid-template-rows: auto 1fr; }
.home-case > a > img { height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.home-case__body { flex: 1; }
.content-dialog[open], .case-dialog[open] { animation: dialog-enter 220ms var(--motion-ease); }
@keyframes dialog-enter { from { opacity: 0; translate: 0 8px; } to { opacity: 1; translate: 0 0; } }

@media (min-width: 1100px) {
  .proof-section { padding: calc(var(--nav-height) + 24px) 0 24px; }
  .proof-shell { min-height: calc(100dvh - var(--nav-height) - 48px); padding-block: clamp(24px, 4vh, 40px); }
  .feedback-shell { grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: 48px; }
  .feedback-copy h2 br { display: none; }
  .feedback-panel { grid-template-columns: 90px 1fr; }
  .feedback-panel p { grid-column: 1 / -1; }
  .system-definition__shell { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 40px; }
  .system-node button { width: 200px; grid-template-columns: 28px 1fr; gap: 5px 8px; padding: 16px; }
  .system-node--diagnose, .system-node--plan { top: 4%; }
  .system-node--execute, .system-node--review { bottom: 4%; }
  .system-node--diagnose, .system-node--execute { left: 3%; }
  .system-node--plan, .system-node--review { right: 3%; }
  .system-definition__core { width: 290px; padding: 24px; }
}
@media (min-width: 1100px) and (max-height: 820px) {
  .system-definition__map { min-height: 550px; }
  .service-depth__content { padding: 20px; }
  .service-depth__content h3 { font-size: 24px; }
}
@media (max-height: 679px) and (min-width: 1100px) {
  .home-page main, .home-page main.is-reading { scroll-snap-type: none; }
  .home-page .snap-screen { scroll-snap-stop: normal; }
}
@media (max-width: 1099px) {
  .home-cases-grid { grid-template-columns: 1fr 1fr; }
  .home-case--feature { max-width: 848px; width: 100%; justify-self: center; }
}
@media (max-width: 767px) {
  :root { --page: calc(100vw - 40px); --section-title: clamp(30px, 8vw, 36px); }
  .home-page .final-cta h2 { font-size: 36px; }
  .home-cases-grid { grid-template-columns: 1fr; }
  .home-case--feature > a { grid-template-rows: auto 1fr; }
  .home-hero .system-map { transform: none; height: 410px; }
  .system-definition__core { min-height: 260px; }
  .system-node button > span { grid-row: auto; }
  .system-node button small { grid-column: 1 / -1; }
  .feedback-panel { min-height: 166px; }
  .service-depth__content h3 { font-size: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; translate: none; }
  .feedback-step { opacity: 1; }
  .home-page main { scroll-snap-type: none; }
  .route-track { stroke-dashoffset: 0; }
  .map-label { opacity: 1; transform: none; }
}

@media (prefers-contrast: more) {
  :root { --line: rgba(24, 24, 23, .34); --line-strong: rgba(24, 24, 23, .58); }
  .site-header { background: var(--paper); }
  .button--primary,
  .header-cta { background: #a40812; }
}