:root {
  --ink: #191816;
  --muted: #716d66;
  --gold: #b28c48;
  --gold-dark: #80622f;
  --gold-light: #e3ce99;
  --ivory: #fffdf8;
  --warm: #f6f3ec;
  --panel: rgba(255, 253, 248, 0.88);
  --line: rgba(91, 75, 45, 0.13);
  --shadow: 0 24px 70px rgba(72, 55, 25, 0.1);
  --radius-lg: 32px;
  --radius-md: 24px;
  --page: min(1240px, calc(100% - 48px));
  --scroll-progress: 0%;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  background: var(--ivory);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background: var(--ivory);
  font-family: "Noto Sans SC", "PingFang SC", "DengXian", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

.yk-intro {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgba(227, 206, 153, 0.2), transparent 36%),
    linear-gradient(135deg, #fffdf8 0%, #f8f1df 100%);
  pointer-events: none;
}

.yk-intro.intro-ready {
  animation: intro-exit 0.34s ease 1.75s forwards;
}

.intro-mark {
  display: grid;
  justify-items: center;
  gap: 24px;
  transform: translateY(-2vh);
}

.intro-text {
  position: relative;
  color: var(--ink);
  font-size: clamp(42px, 9vw, 92px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.04em;
  isolation: isolate;
}

.intro-text span {
  display: block;
  color: var(--ink);
  background: linear-gradient(90deg, var(--ink), #8b6b32 58%, var(--gold-dark));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  clip-path: inset(0 100% 0 0);
}

.yk-intro.intro-ready .intro-text span {
  animation: intro-text-reveal 0.9s cubic-bezier(0.2, 0.8, 0.18, 1) 0.42s forwards;
}

.intro-text::before,
.intro-text::after {
  position: absolute;
  left: -10%;
  right: -10%;
  content: "";
  pointer-events: none;
}

.intro-text::before {
  top: 14%;
  z-index: -1;
  width: 42%;
  height: 72%;
  border-radius: 999px;
  background:
    radial-gradient(circle at 16% 50%, rgba(255, 255, 255, 0.92), transparent 24%),
    linear-gradient(90deg, transparent, rgba(219, 187, 113, 0.44), rgba(255, 255, 255, 0.78), transparent);
  filter: blur(8px);
  opacity: 0;
  transform: translateX(-18%);
}

.yk-intro.intro-ready .intro-text::before {
  animation: intro-brush-sweep 0.82s ease-out 0.47s forwards;
}

.intro-text::after {
  bottom: -14px;
  height: 14px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, transparent 0%, rgba(178, 140, 72, 0.18) 8%, rgba(178, 140, 72, 0.76) 48%, transparent 100%);
  clip-path: inset(0 100% 0 0);
  filter: blur(0.2px);
}

.yk-intro.intro-ready .intro-text::after {
  animation: intro-smear-line 0.78s ease-out 0.58s forwards;
}

.intro-logo {
  width: clamp(82px, 16vw, 138px);
  opacity: 0;
  transform: translateY(-16px) scale(0.82);
  filter:
    drop-shadow(0 0 0 rgba(227, 206, 153, 0))
    drop-shadow(0 18px 26px rgba(128, 98, 47, 0.08));
}

.yk-intro.intro-ready .intro-logo {
  animation: intro-logo-in 0.68s cubic-bezier(0.18, 0.9, 0.22, 1.18) forwards;
}

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

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

button {
  font: inherit;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(155, 124, 66, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 124, 66, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

.ambient-noise,
.ambient-line {
  display: none;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.13;
  animation: ambientFloat 12s ease-in-out infinite alternate;
}

.ambient-orb-a {
  top: -18%;
  right: -8%;
  width: min(48vw, 700px);
  aspect-ratio: 1;
  background: #d9bd7d;
}

.ambient-orb-b {
  top: 42%;
  left: -18%;
  width: min(44vw, 640px);
  aspect-ratio: 1;
  background: #b9aa8f;
  animation-delay: -4s;
}

.ambient-orb-c {
  right: 5%;
  bottom: -18%;
  width: min(38vw, 560px);
  aspect-ratio: 1;
  background: #ead9aa;
  animation-delay: -8s;
}

.site-header {
  position: fixed;
  top: 12px;
  left: 50%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1720px, calc(100% - 16px));
  height: 72px;
  padding: 0 clamp(20px, 2.4vw, 44px);
  border: 1px solid rgba(119, 94, 47, 0.12);
  border-radius: 20px;
  background: rgba(255, 253, 248, 0.84);
  box-shadow: 0 12px 42px rgba(82, 65, 32, 0.09);
  backdrop-filter: saturate(160%) blur(22px);
  -webkit-backdrop-filter: saturate(160%) blur(22px);
  transform: translateX(-50%);
  transition: height 0.3s ease, top 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: var(--scroll-progress);
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
}

.site-header.scrolled {
  top: 8px;
  height: 64px;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 10px 34px rgba(82, 65, 32, 0.12);
}

.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  width: auto;
  height: 50px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(78vw, 1180px);
  min-height: 52px;
  margin-left: clamp(24px, 3vw, 64px);
  padding: 4px;
  gap: clamp(4px, 0.5vw, 10px);
  border: 1px solid rgba(119, 94, 47, 0.09);
  border-radius: 16px;
  color: #3e3b36;
  background: rgba(128, 98, 47, 0.045);
  font-size: 14px;
  font-weight: 600;
}

.main-nav > a:not(.nav-library) {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 clamp(10px, 1vw, 16px);
  border-radius: 12px;
  white-space: nowrap;
  transition: color 0.24s ease, background 0.24s ease, transform 0.18s ease;
}

.main-nav > a:not(.nav-library)::after {
  content: "";
  position: absolute;
  right: calc(100% - 18px);
  bottom: 5px;
  left: 18px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
  transition: right 0.3s ease;
}

.main-nav > a:not(.nav-library):hover::after {
  right: 18px;
}

.main-nav > a:not(.nav-library):hover,
.main-nav > a:not(.nav-library)[aria-current="true"] {
  color: var(--gold-dark);
  background: rgba(255, 253, 248, 0.68);
}

.main-nav > a:focus-visible {
  outline: 2px solid rgba(128, 98, 47, 0.58);
  outline-offset: 2px;
}

.main-nav > a:active {
  transform: translateY(1px);
}

.nav-library {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 144px;
  min-height: 44px;
  padding: 0 22px;
  margin-left: clamp(12px, 1vw, 20px);
  border-radius: 12px;
  color: #fff;
  background: #1d1c1a;
  box-shadow: 0 8px 20px rgba(28, 26, 22, 0.14);
  white-space: nowrap;
  transition: background 0.24s ease, box-shadow 0.24s ease, transform 0.18s ease;
}

.nav-library:hover {
  background: #35312b;
  box-shadow: 0 10px 24px rgba(28, 26, 22, 0.2);
}

.ui-icon {
  display: block;
  width: 15px;
  height: 15px;
  flex: 0 0 15px;
  overflow: hidden;
  color: currentColor;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
  transform: translateZ(0);
}

.button .ui-icon,
.nav-library .ui-icon {
  margin-left: 1px;
}

.back-to-top .ui-icon {
  width: 18px;
  height: 18px;
  flex-basis: 18px;
  margin: 0;
}

.menu-toggle {
  display: none;
  position: relative;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  position: absolute;
  left: 9px;
  width: 24px;
  height: 1px;
  background: var(--ink);
  transition: top 0.25s ease, transform 0.25s ease;
}

.menu-toggle span:first-child {
  top: 16px;
}

.menu-toggle span:last-child {
  top: 25px;
}

.menu-toggle.active span:first-child {
  top: 21px;
  transform: rotate(45deg);
}

.menu-toggle.active span:last-child {
  top: 21px;
  transform: rotate(-45deg);
}

main,
footer {
  position: relative;
  z-index: 1;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(500px, 1.18fr);
  grid-template-rows: auto auto;
  align-content: center;
  gap: 28px clamp(52px, 6vw, 96px);
  min-height: 720px;
  padding: 118px max(24px, calc((100vw - 1240px) / 2)) 68px;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 22%, rgba(198, 166, 98, 0.14), transparent 25%),
    radial-gradient(circle at 58% 72%, rgba(119, 104, 76, 0.07), transparent 29%),
    linear-gradient(180deg, var(--ivory), #f7f4ed 72%, var(--ivory));
}

.hero-copy {
  z-index: 2;
  grid-column: 1;
  grid-row: 1;
  align-self: end;
  max-width: 560px;
}

.hero .reveal {
  opacity: 1;
  transform: none;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--gold-dark);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.17em;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  flex: 0 0 auto;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
}

.hero .eyebrow::before {
  display: none;
}

.hero h1 {
  margin: 22px 0 0;
  max-width: 520px;
  font-size: clamp(60px, 5.1vw, 82px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.hero h1 em {
  color: transparent;
  font-style: normal;
  background: linear-gradient(100deg, #8a682f, #c7a662 55%, #72562a);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-lead {
  max-width: 540px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 50px;
  padding: 0 24px;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 650;
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-gold,
.button-light {
  color: #fff;
  background: #1c1b19;
  box-shadow: 0 10px 28px rgba(29, 27, 23, 0.2);
}

.button-glass {
  color: var(--gold-dark);
  border-color: rgba(156, 119, 53, 0.34);
  background: rgba(255, 253, 248, 0.8);
}

.hero-visual {
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: center;
  min-width: 0;
  min-height: 510px;
  border-radius: 34px;
  background:
    linear-gradient(90deg, rgba(255, 253, 248, 0.04), transparent 36%),
    url("assets/visuals/hero-pearl-gold-v2.png") 78% 63% / 156% auto no-repeat;
  box-shadow: 0 36px 80px rgba(105, 79, 32, 0.13);
  animation: visualFloat 8s ease-in-out infinite;
}

.hero-manifesto {
  z-index: 3;
  grid-column: 1;
  grid-row: 2;
  align-self: start;
  width: 100%;
  max-width: 540px;
  margin: 0;
  padding: 26px 28px;
  border: 1px solid rgba(224, 202, 151, 0.25);
  border-radius: 26px;
  color: #fff;
  background: rgba(22, 20, 17, 0.74);
  box-shadow: 0 24px 70px rgba(48, 37, 17, 0.26);
  backdrop-filter: blur(22px);
}

.manifesto-index {
  color: #e1c98f;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.hero-manifesto > p {
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.56);
  font-size: 13px;
}

.hero-manifesto h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 1.75vw, 27px);
  font-weight: 560;
  line-height: 1.46;
  letter-spacing: -0.025em;
}

.manifesto-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 11px;
}

.manifesto-meta i {
  width: 18px;
  height: 1px;
  background: rgba(225, 201, 143, 0.38);
}

.scroll-cue {
  display: none;
  align-items: center;
  gap: 16px;
  color: #928b80;
  font-size: 9px;
  letter-spacing: 0.16em;
}

.scroll-cue i {
  width: 72px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}

.flow-shell,
.operating-shell {
  width: var(--page);
  margin: 0 auto;
}

.culture-flow,
.system,
.operating,
.brands,
.closing {
  position: relative;
  overflow: hidden;
}

.culture-flow {
  padding: 140px 0 150px;
  background:
    radial-gradient(circle at 50% 58%, rgba(190, 156, 87, 0.08), transparent 36%),
    var(--ivory);
}

.culture-flow::before {
  content: "";
  position: absolute;
  inset: 24% 0 0;
  opacity: 0.09;
  background:
    linear-gradient(120deg, transparent 0 31%, rgba(92, 72, 37, 0.46) 31% 31.3%, transparent 31.3% 100%),
    linear-gradient(28deg, transparent 0 42%, rgba(92, 72, 37, 0.34) 42% 42.25%, transparent 42.25% 100%),
    radial-gradient(circle at 34% 42%, rgba(92, 72, 37, 0.52) 0 2px, transparent 2px),
    radial-gradient(circle at 64% 54%, rgba(92, 72, 37, 0.4) 0 2px, transparent 2px);
  background-size: min(1100px, 82vw) 520px;
  background-position: center;
  background-repeat: no-repeat;
  filter: sepia(1) saturate(0.42) brightness(1.15);
  mask-image: radial-gradient(circle, black, transparent 70%);
  pointer-events: none;
}

.flow-heading {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.65fr);
  align-items: end;
  gap: 50px;
}

.flow-heading h2,
.system-heading h2,
.operating-heading h2,
.brand-copy h2,
.closing h2 {
  margin: 16px 0 0;
  font-size: clamp(42px, 4.2vw, 60px);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.04em;
}

.flow-heading > p,
.system-heading > p:last-child,
.brand-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.culture-path {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 72px;
}

.path-line {
  display: none;
}

.culture-node {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
  min-height: 310px;
  padding: 32px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 100% 0, rgba(205, 175, 110, 0.09), transparent 40%),
    rgba(255, 253, 248, 0.9);
  box-shadow: 0 20px 56px rgba(71, 56, 30, 0.07);
  backdrop-filter: blur(14px);
  cursor: pointer;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.culture-node:hover {
  border-color: rgba(128, 98, 47, 0.25);
  transform: translateY(-5px);
  box-shadow: 0 28px 72px rgba(71, 56, 30, 0.11);
}

.node-number {
  color: rgba(128, 98, 47, 0.38);
  font-size: 54px;
  font-weight: 250;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.culture-node p {
  margin: 0 0 16px;
  color: #8a7040;
  font-size: 12px;
  font-weight: 560;
  letter-spacing: 0.08em;
}

.culture-node h3 {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin: 0;
  font-size: clamp(22px, 1.72vw, 27px);
  line-height: 1.36;
  letter-spacing: -0.025em;
}

.culture-lead {
  color: #777067;
  font-size: 0.68em;
  font-weight: 400;
}

.culture-focus {
  color: var(--ink);
  font-weight: 590;
}

.culture-focus-team {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.culture-detail {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  color: #fff;
  background:
    radial-gradient(circle at 92% 4%, rgba(229, 204, 148, 0.25), transparent 34%),
    linear-gradient(145deg, rgba(37, 34, 29, 0.98), rgba(126, 96, 44, 0.97));
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.culture-detail span {
  color: #ead49f;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.1em;
}

.culture-detail b {
  margin-top: 16px;
  font-size: 21px;
  font-weight: 580;
  line-height: 1.4;
}

.culture-detail p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.72;
  letter-spacing: 0;
}

.culture-node:not(.is-suppressed):hover .culture-detail,
.culture-node:not(.is-suppressed).is-hovered .culture-detail,
.culture-node.is-active .culture-detail {
  opacity: 1;
  transform: none;
}

.culture-node:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.system {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  align-items: center;
  gap: clamp(50px, 7vw, 100px);
  padding: 140px max(24px, calc((100vw - 1240px) / 2));
  background:
    radial-gradient(circle at 72% 50%, rgba(191, 156, 85, 0.1), transparent 28%),
    var(--warm);
}

.system::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(151, 120, 61, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(151, 120, 61, 0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  pointer-events: none;
}

.system-glow {
  display: none;
}

.system-heading,
.capability-wheel {
  position: relative;
  z-index: 1;
}

.system-heading > p:last-child {
  max-width: 390px;
  margin-top: 26px;
}

.capability-wheel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.wheel-core,
.capability {
  position: relative;
  inset: auto;
  min-width: 0;
  min-height: 178px;
  padding: 24px;
  border-radius: var(--radius-md);
}

.wheel-core {
  grid-column: 2;
  grid-row: 2;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  color: #fff;
  background: linear-gradient(145deg, #24221e, #9b7738);
  box-shadow: 0 26px 70px rgba(95, 70, 28, 0.2);
}

.wheel-core::before {
  display: none;
}

.wheel-core span,
.wheel-core p {
  margin: 0;
  color: #e5d2a0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.wheel-core p {
  align-self: end;
  font-size: 15px;
  letter-spacing: 0.06em;
}

.wheel-core strong {
  grid-column: 2;
  grid-row: 1 / 3;
  font-size: 82px;
  font-weight: 300;
  line-height: 1;
}

.capability {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 14px 42px rgba(71, 56, 30, 0.08);
  cursor: pointer;
  transition: color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.capability > span,
.capability > p {
  margin: 0;
  color: var(--gold-dark);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.capability h3 {
  margin: auto 0;
  font-size: 23px;
  font-weight: 580;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.capability-detail {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 0, rgba(226, 202, 145, 0.25), transparent 34%),
    linear-gradient(145deg, rgba(35, 32, 27, 0.98), rgba(126, 96, 44, 0.96));
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.capability-detail b {
  font-size: 17px;
  line-height: 1.45;
}

.capability-detail small {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 12px;
  line-height: 1.65;
}

.capability:not(.is-suppressed):hover,
.capability.is-active {
  color: #fff;
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: 0 24px 58px rgba(74, 55, 22, 0.2);
}

.capability:not(.is-suppressed):hover .capability-detail,
.capability.is-active .capability-detail {
  opacity: 1;
  transform: none;
}

.capability:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.capability-1 { grid-column: 1; grid-row: 1; }
.capability-2 { grid-column: 2; grid-row: 1; }
.capability-3 { grid-column: 3; grid-row: 1; }
.capability-4 { grid-column: 1; grid-row: 2; }
.capability-5 { grid-column: 1; grid-row: 3; }
.capability-6 { grid-column: 3; grid-row: 2; }

.operating {
  padding: 140px 0;
  background: var(--ivory);
}

.operating-heading {
  max-width: 760px;
}

.principle-panel {
  display: grid;
  grid-template-columns: 0.95fr 2.1fr;
  margin-top: 64px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--warm);
  box-shadow: var(--shadow);
}

.principle-lead {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 42px;
  border-right: 1px solid var(--line);
  background: linear-gradient(145deg, #f6f0e3, #efe8da);
}

.principle-lead > span,
.principle-lead p {
  color: var(--muted);
  font-size: 13px;
}

.principle-lead strong {
  margin: 28px 0 10px;
  color: transparent;
  font-size: clamp(58px, 6vw, 88px);
  font-weight: 400;
  line-height: 1;
  background: linear-gradient(100deg, #1d1c19, #b18b45);
  -webkit-background-clip: text;
  background-clip: text;
}

.principle-lead p {
  margin: 0;
}

.principle-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principle-columns article {
  min-width: 0;
  padding: 38px 28px;
  border-right: 1px solid var(--line);
}

.principle-columns article:last-child {
  border-right: 0;
}

.principle-columns b {
  display: block;
  margin-bottom: 70px;
  color: var(--gold);
  font-size: 62px;
  font-weight: 300;
}

.principle-columns span {
  font-size: 14px;
  font-weight: 700;
}

.principle-columns p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.strategy-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.strategy-item {
  min-width: 0;
  min-height: 230px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  box-shadow: 0 14px 44px rgba(71, 56, 30, 0.07);
}

.strategy-item > span {
  color: var(--gold-dark);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.strategy-item h3 {
  margin: 72px 0 0;
  overflow-wrap: anywhere;
  font-size: 22px;
  font-weight: 520;
  line-height: 1.65;
}

.brands {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(460px, 1.15fr);
  align-items: center;
  gap: clamp(50px, 7vw, 100px);
  padding: 140px max(24px, calc((100vw - 1240px) / 2));
  background:
    radial-gradient(circle at 76% 58%, rgba(192, 156, 85, 0.12), transparent 28%),
    var(--warm);
}

.brand-copy,
.product-scene {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.brand-copy > p {
  margin-top: 28px;
}

.brand-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}

.brand-tags span {
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #625b50;
  background: rgba(255, 253, 248, 0.76);
  font-size: 12px;
}

.product-scene {
  min-height: 590px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 38px;
  background:
    radial-gradient(circle at 50% 52%, rgba(212, 178, 104, 0.58) 0 18%, rgba(212, 178, 104, 0.28) 18.5% 32%, transparent 32.5%),
    rgba(255, 253, 248, 0.72);
  box-shadow: 0 30px 80px rgba(74, 57, 28, 0.12);
}

.product-brand {
  position: absolute;
  top: 34px;
  left: 34px;
  z-index: 4;
}

.product-brand img {
  width: 110px;
}

.product-orbit {
  position: absolute;
  top: 14%;
  left: 14%;
  width: 72%;
  aspect-ratio: 1;
  border: 1px solid rgba(181, 145, 79, 0.28);
  border-radius: 50%;
  animation: orbitSpin 20s linear infinite;
}

.product-box {
  position: absolute;
  left: 5%;
  bottom: 10%;
  z-index: 2;
  width: 48%;
  max-height: 58%;
  object-fit: contain;
  filter: drop-shadow(0 30px 30px rgba(63, 48, 22, 0.24));
  animation: productFloat 5s ease-in-out infinite;
}

.product-tube {
  position: absolute;
  left: 50%;
  bottom: 10%;
  z-index: 3;
  width: 10%;
  max-height: 52%;
  object-fit: contain;
  filter: drop-shadow(0 24px 24px rgba(63, 48, 22, 0.2));
  animation: productFloat 5s ease-in-out -2s infinite;
}

.product-medium,
.product-large {
  position: absolute;
  bottom: 10%;
  object-fit: contain;
  filter: drop-shadow(0 25px 26px rgba(63, 48, 22, 0.22));
}

.product-medium {
  left: 60%;
  z-index: 4;
  width: 15%;
  max-height: 62%;
  animation: productFloat 5.4s ease-in-out -1.1s infinite;
}

.product-large {
  left: 75%;
  z-index: 5;
  width: 17%;
  max-height: 72%;
  animation: productFloat 5.8s ease-in-out -2.6s infinite;
}

.product-caption {
  position: absolute;
  top: 32px;
  right: 32px;
  z-index: 5;
  margin: 0;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #6f5a32;
  background: rgba(255, 253, 248, 0.78);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.06em;
  writing-mode: horizontal-tb;
  backdrop-filter: blur(10px);
}

.brand-light {
  display: none;
}

.brand-honor {
  display: grid;
  grid-template-columns: minmax(280px, 0.65fr) minmax(0, 1.35fr);
  align-items: center;
  gap: clamp(44px, 7vw, 100px);
  padding: 120px max(24px, calc((100vw - 1240px) / 2));
  background: var(--ivory);
}

.brand-honor-copy {
  min-width: 0;
}

.brand-honor-copy h2 {
  margin: 16px 0 0;
  font-size: clamp(40px, 4vw, 58px);
  font-weight: 650;
  line-height: 1.14;
  letter-spacing: -0.055em;
}

.brand-honor-copy > p:last-child {
  max-width: 440px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.brand-honor-card {
  position: relative;
  display: block;
  min-width: 0;
  margin: 0;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow);
}

.brand-honor-card img {
  width: 100%;
  border-radius: calc(var(--radius-lg) - 12px);
}

.closing {
  display: grid;
  place-items: center;
  min-height: 620px;
  padding: 110px max(24px, calc((100vw - 1240px) / 2));
  background:
    radial-gradient(circle at 82% 22%, rgba(210, 179, 111, 0.19), transparent 28%),
    radial-gradient(circle at 10% 92%, rgba(196, 159, 86, 0.12), transparent 34%),
    linear-gradient(145deg, #fbf8f0, #f0eadc 58%, var(--ivory));
}

.closing-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(230px, 0.62fr) minmax(0, 1.38fr);
  align-items: center;
  width: min(100%, 1120px);
  min-height: 340px;
  padding: 54px clamp(40px, 6vw, 78px);
  overflow: hidden;
  border: 1px solid rgba(128, 98, 47, 0.16);
  border-radius: 36px;
  background: rgba(255, 253, 248, 0.7);
  box-shadow: 0 32px 90px rgba(72, 55, 25, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.closing-inner::after {
  content: "";
  position: absolute;
  top: -42%;
  right: -8%;
  width: 42%;
  aspect-ratio: 1;
  border: 1px solid rgba(178, 140, 72, 0.2);
  border-radius: 50%;
  box-shadow:
    0 0 0 38px rgba(178, 140, 72, 0.04),
    0 0 0 82px rgba(178, 140, 72, 0.025);
  pointer-events: none;
}

.closing-brand {
  position: relative;
  z-index: 1;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: clamp(30px, 5vw, 64px);
  border-right: 1px solid rgba(128, 98, 47, 0.15);
}

.closing-brand img {
  width: 92px;
  height: 82px;
  margin: 0 0 28px;
  object-fit: contain;
}

.closing .eyebrow {
  max-width: 180px;
  line-height: 1.65;
}

.closing .eyebrow::before {
  display: none;
}

.closing-message {
  position: relative;
  z-index: 1;
  padding-left: clamp(36px, 6vw, 78px);
}

.closing-kicker {
  margin: 0 0 18px;
  color: var(--gold-dark);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.closing h2 {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin: 0 0 36px;
  line-height: 1;
}

.closing h2 span {
  margin-bottom: 12px;
  color: #686158;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 520;
  letter-spacing: -0.045em;
}

.closing h2 strong {
  color: var(--ink);
  font-size: clamp(58px, 7vw, 92px);
  font-weight: 680;
  letter-spacing: -0.075em;
}

.closing .button-light {
  color: #fff;
  border-color: #24211d;
  background: #24211d;
  box-shadow: 0 14px 34px rgba(36, 33, 29, 0.16);
}

.closing .button-light:hover {
  color: #fff;
  background: var(--gold-dark);
}

footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  min-height: 90px;
  padding: 22px max(24px, calc((100vw - 1240px) / 2));
  color: #79736a;
  border-top: 1px solid var(--line);
  background: var(--warm);
  font-size: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
}

.footer-brand img {
  width: 48px;
  height: 44px;
  object-fit: contain;
}

footer > p {
  margin: 0;
}

footer > p:last-child {
  text-align: right;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 106px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  color: #fff;
  background: rgba(28, 27, 25, 0.88);
  box-shadow: 0 12px 30px rgba(28, 26, 22, 0.18);
  opacity: 0;
  visibility: hidden;
  cursor: pointer;
  transform: translateY(12px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, background 0.25s ease;
  backdrop-filter: blur(14px);
}

.contact-assistant {
  position: fixed;
  right: max(24px, env(safe-area-inset-right, 0px));
  bottom: max(24px, env(safe-area-inset-bottom, 0px));
  z-index: 95;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
  pointer-events: none;
}

.contact-assistant-panel,
.contact-assistant-toggle {
  pointer-events: auto;
}

.contact-assistant-panel {
  width: min(376px, calc(100vw - 32px));
  max-height: min(680px, calc(100vh - 124px));
  padding: 24px;
  overflow: auto;
  overscroll-behavior: contain;
  border: 1px solid rgba(119, 94, 47, 0.2);
  border-radius: 26px;
  color: var(--ink);
  background: #fffdf8;
  box-shadow: 0 28px 80px rgba(49, 38, 18, 0.2), 0 4px 18px rgba(49, 38, 18, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.97);
  transform-origin: right bottom;
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-assistant.is-open .contact-assistant-panel {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.contact-assistant-header {
  display: grid;
  grid-template-columns: 46px 1fr 38px;
  align-items: center;
  gap: 12px;
}

.contact-assistant-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 15px;
  color: #fff;
  background: var(--gold-dark);
}

.contact-assistant-mark svg,
.contact-assistant-toggle-icon svg,
.contact-assistant-close svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.contact-assistant-header p,
.contact-assistant-header h2 {
  margin: 0;
}

.contact-assistant-header p {
  margin-bottom: 3px;
  color: var(--gold-dark);
  font-size: 12px;
  font-weight: 700;
}

.contact-assistant-header h2 {
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.contact-assistant-close {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 0;
  border-radius: 12px;
  color: #625d55;
  background: transparent;
  cursor: pointer;
}

.contact-assistant-close:hover,
.contact-assistant-close:focus-visible {
  color: var(--ink);
  background: #f1ede4;
  outline: none;
}

.contact-assistant-intro {
  margin: 18px 0;
  color: #625d55;
  font-size: 14px;
  line-height: 1.65;
}

.contact-assistant-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 12px;
}

.contact-assistant-fields label {
  display: grid;
  gap: 7px;
  color: #37342f;
  font-size: 13px;
  font-weight: 650;
}

.contact-assistant-fields label:nth-child(n + 3) {
  grid-column: 1 / -1;
}

.contact-assistant-fields small {
  color: #746d62;
  font-size: 11px;
  font-weight: 500;
}

.contact-assistant-fields input,
.contact-assistant-fields textarea {
  width: 100%;
  min-width: 0;
  padding: 11px 12px;
  border: 1px solid rgba(91, 75, 45, 0.2);
  border-radius: 12px;
  color: var(--ink);
  background: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.45;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-assistant-fields input::placeholder,
.contact-assistant-fields textarea::placeholder {
  color: #777168;
  opacity: 1;
}

.contact-assistant-fields textarea {
  min-height: 78px;
  resize: vertical;
}

.contact-assistant-fields input:focus,
.contact-assistant-fields textarea:focus {
  border-color: var(--gold-dark);
  box-shadow: 0 0 0 3px rgba(128, 98, 47, 0.12);
}

.contact-assistant-trap {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.contact-assistant-status {
  min-height: 20px;
  margin: 10px 0 4px;
  color: #9a342d;
  font-size: 12px;
  line-height: 1.5;
}

.contact-assistant-status.is-success {
  color: #2f6b46;
}

.contact-assistant-submit {
  width: 100%;
  min-height: 46px;
  padding: 0 20px;
  border: 0;
  border-radius: 13px;
  color: #fff;
  background: #24211d;
  box-shadow: 0 10px 24px rgba(36, 33, 29, 0.16);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.contact-assistant-submit:hover,
.contact-assistant-submit:focus-visible {
  background: var(--gold-dark);
  outline: none;
}

.contact-assistant-submit:active {
  transform: translateY(1px);
}

.contact-assistant-submit:disabled {
  cursor: wait;
  opacity: 0.68;
}

.contact-assistant-privacy {
  margin: 10px 0 0;
  color: #6e685f;
  font-size: 11px;
  line-height: 1.55;
  text-align: center;
}

.contact-assistant-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 142px;
  height: 62px;
  padding: 7px 17px 7px 7px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  color: #fff;
  background: #24211d;
  box-shadow: 0 16px 38px rgba(36, 33, 29, 0.24);
  cursor: pointer;
  transition: background 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
}

.contact-assistant-toggle:hover,
.contact-assistant-toggle:focus-visible,
.contact-assistant.is-open .contact-assistant-toggle {
  background: var(--gold-dark);
  box-shadow: 0 18px 42px rgba(70, 49, 18, 0.28);
  outline: none;
  transform: translateY(-2px);
}

.contact-assistant-toggle-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  border-radius: 50%;
  color: #302719;
  background: var(--gold-light);
}

.contact-assistant-toggle-copy {
  display: grid;
  gap: 1px;
  text-align: left;
}

.contact-assistant-toggle-copy strong {
  font-size: 14px;
  line-height: 1.3;
}

.contact-assistant-toggle-copy small {
  color: rgba(255, 255, 255, 0.78);
  font-size: 11px;
}

@media (max-width: 540px) {
  .contact-assistant {
    right: max(12px, env(safe-area-inset-right, 0px));
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
  }

  .contact-assistant-panel {
    width: calc(100vw - 24px);
    max-height: calc(100dvh - 98px - env(safe-area-inset-top, 0px));
    padding: 20px;
    border-radius: 22px;
  }

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

  .contact-assistant-fields label {
    grid-column: 1 / -1;
  }

  .contact-assistant-toggle {
    min-width: 58px;
    width: 58px;
    height: 58px;
    padding: 6px;
  }

  .contact-assistant-toggle-icon {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
  }

  .contact-assistant-toggle-copy {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }

  .back-to-top {
    right: 18px;
    bottom: 84px;
  }
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: var(--gold-dark);
  outline: none;
}

.main-nav > a[aria-current="true"]::after {
  right: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@keyframes ambientFloat {
  from { transform: translate3d(-2%, -2%, 0) scale(0.95); }
  to { transform: translate3d(3%, 3%, 0) scale(1.06); }
}

@keyframes visualFloat {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -8px; }
}

@keyframes orbitSpin {
  to { transform: rotate(360deg); }
}

@keyframes productFloat {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -10px; }
}

@keyframes intro-text-reveal {
  to {
    clip-path: inset(0 0 0 0);
  }
}

@keyframes intro-brush-sweep {
  0% {
    opacity: 0;
    transform: translateX(-18%) skewX(-10deg);
  }

  18%,
  72% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translateX(178%) skewX(-10deg);
  }
}

@keyframes intro-smear-line {
  to {
    clip-path: inset(0 0 0 0);
  }
}

@keyframes intro-logo-in {
  0% {
    opacity: 0;
    transform: translateY(-16px) scale(0.82);
    filter:
      drop-shadow(0 0 0 rgba(227, 206, 153, 0))
      drop-shadow(0 18px 26px rgba(128, 98, 47, 0.08));
  }

  58% {
    opacity: 1;
    transform: translateY(4px) scale(1.08);
    filter:
      drop-shadow(0 0 20px rgba(227, 206, 153, 0.6))
      drop-shadow(0 18px 30px rgba(128, 98, 47, 0.18));
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter:
      drop-shadow(0 0 10px rgba(227, 206, 153, 0.26))
      drop-shadow(0 14px 24px rgba(128, 98, 47, 0.18));
  }
}

@keyframes intro-exit {
  to {
    opacity: 0;
    visibility: hidden;
  }
}

@media (max-width: 1100px) {
  :root {
    --page: min(100% - 40px, 960px);
  }

  .hero {
    grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
    gap: 26px 42px;
    min-height: 680px;
    padding-top: 112px;
    padding-bottom: 70px;
  }

  .hero h1 {
    font-size: clamp(54px, 6vw, 70px);
  }

  .hero-visual {
    min-height: 480px;
  }

  .hero-manifesto {
    padding: 24px;
  }

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

  .system {
    grid-template-columns: 1fr;
  }

  .system-heading {
    max-width: 720px;
  }

  .principle-panel {
    grid-template-columns: 1fr;
  }

  .principle-lead {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .brands {
    grid-template-columns: minmax(0, 0.8fr) minmax(400px, 1.2fr);
    gap: 40px;
  }
}

@media (min-width: 821px) and (max-width: 1180px) {
  .site-header,
  .site-header.scrolled {
    top: 8px;
    right: 8px;
    left: 8px;
    width: calc(100% - 16px);
    height: 64px;
    padding: 0 16px;
    border-radius: 18px;
    transform: none;
  }

  .site-header.menu-active,
  .site-header.scrolled.menu-active {
    bottom: 8px;
    height: auto;
    align-items: flex-start;
    background: rgba(255, 253, 248, 0.99);
  }

  .brand img {
    height: 44px;
  }

  .menu-toggle {
    z-index: 102;
    display: block;
    flex: 0 0 auto;
  }

  .main-nav {
    position: absolute;
    inset: 0;
    z-index: 101;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    width: auto;
    min-height: 0;
    margin-left: 0;
    padding: 90px 32px 32px;
    overflow-y: auto;
    border: 0;
    border-radius: inherit;
    visibility: hidden;
    opacity: 0;
    color: var(--ink);
    background: rgba(255, 253, 248, 0.98);
    backdrop-filter: blur(24px);
    transform: translateY(-12px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  }

  .main-nav.open {
    visibility: visible;
    opacity: 1;
    transform: none;
  }

  .main-nav > a:not(.nav-library) {
    display: flex;
    align-items: center;
    min-height: 58px;
    padding: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 20px;
  }

  .main-nav > a:not(.nav-library)::after {
    display: none;
  }

  .nav-library {
    min-width: 0;
    min-height: 54px;
    margin: 24px 0 0;
  }
}

@media (max-width: 820px) {
  :root {
    --page: calc(100% - 36px);
    --radius-lg: 26px;
    --radius-md: 22px;
  }

  .brand-honor {
    grid-template-columns: 1fr;
    gap: 42px;
    padding: 100px 18px;
  }

  .brand-honor-copy {
    max-width: 680px;
  }

  .brand-honor-card {
    width: min(100%, 820px);
    margin: 0 auto;
  }

  html {
    scroll-padding-top: 76px;
  }

  .site-header,
  .site-header.scrolled {
    top: 8px;
    right: 8px;
    left: 8px;
    width: calc(100% - 16px);
    height: 58px;
    padding: 0 14px;
    border-radius: 16px;
    transform: none;
  }

  .site-header.menu-active {
    bottom: 8px;
    height: auto;
    align-items: flex-start;
    background: rgba(255, 253, 248, 0.99);
  }

  .brand img {
    height: 42px;
  }

  .menu-toggle {
    z-index: 102;
    display: block;
    flex: 0 0 auto;
  }

  .main-nav {
    position: absolute;
    inset: 0;
    z-index: 101;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    width: auto;
    min-height: 0;
    margin-left: 0;
    padding: 90px 24px 32px;
    overflow-y: auto;
    border: 0;
    border-radius: inherit;
    visibility: hidden;
    opacity: 0;
    color: var(--ink);
    background: rgba(255, 253, 248, 0.98);
    backdrop-filter: blur(24px);
    transform: translateY(-12px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
  }

  .main-nav.open {
    visibility: visible;
    opacity: 1;
    transform: none;
  }

  .main-nav > a:not(.nav-library) {
    display: flex;
    align-items: center;
    min-height: 66px;
    border-bottom: 1px solid var(--line);
    font-size: 22px;
  }

  .main-nav > a:not(.nav-library)::after {
    display: none;
  }

  .nav-library {
    min-height: 54px;
    margin-top: 24px;
  }

  .hero {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 32px;
    min-height: auto;
    padding: 104px 18px 82px;
  }

  .hero-visual {
    grid-column: 1;
    grid-row: 2;
    min-height: clamp(200px, 48vw, 340px);
    margin: 0;
    border-radius: 26px;
    background-position: 78% 62%;
    background-size: 154% auto;
  }

  .hero-copy {
    grid-column: 1;
    grid-row: 1;
    max-width: 620px;
  }

  .hero h1 {
    max-width: 540px;
    font-size: clamp(50px, 11vw, 70px);
  }

  .hero-lead {
    max-width: 580px;
    font-size: 16px;
  }

  .hero-manifesto {
    grid-column: 1;
    grid-row: 3;
    justify-self: stretch;
    width: auto;
    max-width: 620px;
    margin: 0;
    color: var(--ink);
    border: 1px solid var(--line);
    background: linear-gradient(145deg, #f4eddf, #eee5d4);
    box-shadow: 0 18px 50px rgba(80, 59, 25, 0.1);
  }

  .manifesto-index,
  .hero-manifesto > p,
  .manifesto-meta {
    color: #8c7140;
  }

  .hero-manifesto > p {
    margin-top: 24px;
  }

  .hero-manifesto h2 {
    font-size: clamp(25px, 5vw, 32px);
  }

  .scroll-cue {
    display: none;
  }

  .culture-flow,
  .operating {
    padding: 100px 0;
  }

  .flow-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .flow-heading h2,
  .system-heading h2,
  .operating-heading h2,
  .brand-copy h2 {
    font-size: clamp(38px, 7.2vw, 52px);
  }

  .culture-path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 50px;
  }

  .culture-node {
    min-height: 280px;
  }

  .system {
    gap: 46px;
    padding: 100px 18px;
  }

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

  .wheel-core {
    grid-column: 1 / -1;
    grid-row: 3;
  }

  .capability-1 { grid-column: 1; grid-row: 1; }
  .capability-2 { grid-column: 2; grid-row: 1; }
  .capability-3 { grid-column: 1; grid-row: 2; }
  .capability-4 { grid-column: 2; grid-row: 2; }
  .capability-5 { grid-column: 1; grid-row: 4; }
  .capability-6 { grid-column: 2; grid-row: 4; }

  .principle-columns {
    grid-template-columns: 1fr;
  }

  .principle-columns article {
    display: grid;
    grid-template-columns: 70px 1fr;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .principle-columns article:last-child {
    border-bottom: 0;
  }

  .principle-columns b {
    grid-row: 1 / 3;
    margin: 0;
  }

  .strategy-strip {
    grid-template-columns: 1fr;
  }

  .strategy-item {
    min-height: 190px;
  }

  .strategy-item h3 {
    margin-top: 52px;
  }

  .brands {
    grid-template-columns: 1fr;
    gap: 52px;
    padding: 100px 18px 80px;
  }

  .brand-copy {
    max-width: 680px;
  }

  .product-scene {
    width: min(100%, 660px);
    min-height: clamp(440px, 76vw, 590px);
    margin: 0 auto;
  }

  .closing {
    min-height: 560px;
  }

  footer {
    grid-template-columns: 1fr auto;
  }

  footer > p:nth-child(2) {
    display: none;
  }
}

@media (max-width: 540px) {
  :root {
    --page: calc(100% - 32px);
  }

  .ambient {
    background-size: 42px 42px;
  }

  .hero {
    gap: 26px;
    padding: 94px 16px 72px;
  }

  .hero-visual {
    min-height: clamp(176px, 48vw, 210px);
    border-radius: 22px;
    background-position: 80% 64%;
    background-size: 164% auto;
  }

  .eyebrow {
    font-size: 10px;
    letter-spacing: 0.13em;
  }

  .hero h1 {
    font-size: clamp(44px, 13.4vw, 58px);
    line-height: 1.02;
  }

  .hero-lead {
    margin-top: 22px;
    font-size: 15px;
    line-height: 1.75;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    margin-top: 26px;
  }

  .button {
    width: 100%;
  }

  .hero-manifesto {
    padding: 24px 22px;
    border-radius: 22px;
  }

  .hero-manifesto h2 {
    font-size: 25px;
  }

  .culture-flow,
  .operating {
    padding: 84px 0;
  }

  .flow-heading h2,
  .system-heading h2,
  .operating-heading h2,
  .brand-copy h2 {
    font-size: clamp(34px, 10vw, 42px);
  }

  .flow-heading > p,
  .system-heading > p:last-child,
  .brand-copy > p {
    font-size: 15px;
    line-height: 1.8;
  }

  .culture-path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    width: 100%;
    padding: 0;
    overflow: visible;
  }

  .culture-node {
    aspect-ratio: 1;
    min-height: 0;
    padding: clamp(17px, 4.9vw, 22px);
    border-radius: 22px;
  }

  .culture-node:hover {
    transform: none;
  }

  .culture-node p {
    margin-bottom: 8px;
    font-size: clamp(8px, 2.35vw, 10px);
    line-height: 1.35;
    letter-spacing: 0.045em;
  }

  .culture-node h3 {
    gap: 4px;
    font-size: clamp(15px, 4.35vw, 19px);
    line-height: 1.3;
    letter-spacing: -0.02em;
  }

  .node-number {
    font-size: clamp(34px, 10vw, 42px);
  }

  .system {
    padding: 84px 16px;
  }

  .wheel-core,
  .capability {
    min-height: 148px;
    padding: 20px;
  }

  .wheel-core strong {
    font-size: 68px;
  }

  .capability h3 {
    font-size: 20px;
  }

  .principle-panel {
    margin-top: 46px;
  }

  .principle-lead {
    padding: 30px 24px;
  }

  .principle-lead strong {
    font-size: 58px;
  }

  .principle-columns article {
    grid-template-columns: 56px 1fr;
    padding: 28px 22px;
  }

  .principle-columns b {
    font-size: 50px;
  }

  .principle-columns p {
    font-size: 14px;
  }

  .strategy-item {
    min-height: 180px;
    padding: 25px 22px;
  }

  .strategy-item h3 {
    margin-top: 44px;
    font-size: 20px;
  }

  .brands {
    padding: 84px 16px 70px;
  }

  .brand-honor {
    gap: 34px;
    padding: 84px 16px;
  }

  .brand-honor-copy h2 {
    font-size: clamp(34px, 10vw, 42px);
  }

  .brand-honor-copy > p:last-child {
    font-size: 15px;
    line-height: 1.8;
  }

  .brand-honor-card {
    padding: 8px;
    border-radius: 22px;
  }

  .brand-honor-card img {
    border-radius: 16px;
  }

  .button .ui-icon,
  .nav-library .ui-icon {
    width: 14px;
    height: 14px;
    flex-basis: 14px;
  }

  .brand-tags span {
    font-size: 11px;
  }

  .product-scene {
    min-height: 430px;
    border-radius: 26px;
  }

  .product-brand {
    top: 24px;
    left: 22px;
  }

  .product-brand img {
    width: 84px;
  }

  .product-caption {
    top: 22px;
    right: 20px;
    padding: 7px 10px;
    font-size: 10px;
  }

  .product-box {
    left: 4%;
    right: auto;
    bottom: 11%;
    width: 48%;
    max-height: 50%;
  }

  .product-tube {
    left: 50%;
    bottom: 11%;
    width: 10%;
    max-height: 48%;
  }

  .product-medium {
    left: 60%;
    bottom: 11%;
    width: 14%;
    max-height: 58%;
  }

  .product-large {
    left: 75%;
    bottom: 11%;
    width: 17%;
    max-height: 66%;
  }

  .closing {
    min-height: 0;
    padding: 68px 16px;
  }

  .closing-inner {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 34px 24px 28px;
    border-radius: 28px;
    text-align: center;
    background:
      radial-gradient(circle at 50% 0, rgba(210, 179, 111, 0.13), transparent 34%),
      rgba(255, 253, 248, 0.78);
  }

  .closing-brand {
    align-items: center;
    padding: 0 0 24px;
    border-right: 0;
    border-bottom: 1px solid rgba(128, 98, 47, 0.15);
  }

  .closing-brand img {
    width: 72px;
    height: 64px;
    margin-bottom: 12px;
  }

  .closing .eyebrow {
    max-width: none;
  }

  .closing-message {
    padding: 28px 0 0;
  }

  .closing-kicker {
    margin-bottom: 16px;
    font-size: 9px;
    letter-spacing: 0.16em;
  }

  .closing h2 {
    align-items: center;
    margin-bottom: 26px;
    line-height: 1;
  }

  .closing h2 span {
    margin-bottom: 12px;
    color: #766c5e;
    font-size: clamp(22px, 6.4vw, 27px);
    font-weight: 520;
    letter-spacing: 0.06em;
  }

  .closing h2 strong {
    color: transparent;
    font-size: clamp(46px, 13vw, 56px);
    letter-spacing: -0.055em;
    background: linear-gradient(100deg, #24211d, #9a7639 72%, #5d4828);
    -webkit-background-clip: text;
    background-clip: text;
  }

  footer {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 26px 18px;
  }

  footer > p:last-child {
    text-align: left;
  }

  .back-to-top {
    display: none;
  }
}

@media (max-width: 370px) {
  .hero h1 {
    font-size: 43px;
  }

  .hero-manifesto h2 {
    font-size: 21px;
    line-height: 1.5;
  }

  .culture-node {
    padding: 14px;
  }

  .culture-node p {
    margin-bottom: 5px;
    font-size: 7px;
  }

  .culture-node h3 {
    gap: 3px;
    font-size: 12.5px;
    line-height: 1.3;
  }

  .node-number {
    font-size: 32px;
  }

  .capability-wheel {
    grid-template-columns: 1fr;
  }

  .wheel-core,
  .capability-1,
  .capability-2,
  .capability-3,
  .capability-4,
  .capability-5,
  .capability-6 {
    grid-column: 1;
    grid-row: auto;
  }

  .wheel-core {
    order: -1;
  }
}

/* Unified hero: visual, message and actions live in one composition. */
.hero {
  display: block;
  min-height: 0;
  padding: 112px max(24px, calc((100vw - 1240px) / 2)) 72px;
  background:
    radial-gradient(circle at 78% 20%, rgba(198, 166, 98, 0.1), transparent 25%),
    linear-gradient(180deg, var(--ivory), #f7f4ed);
}

.hero-stage {
  position: relative;
  min-height: 650px;
  overflow: hidden;
  border: 1px solid rgba(119, 94, 47, 0.12);
  border-radius: 40px;
  background:
    linear-gradient(90deg, rgba(255, 253, 248, 0.98) 0%, rgba(255, 253, 248, 0.88) 31%, rgba(255, 253, 248, 0.2) 57%, transparent 72%),
    url("assets/visuals/hero-pearl-gold-v2.png") 68% center / cover no-repeat;
  box-shadow: 0 40px 100px rgba(88, 67, 31, 0.13);
}

.hero-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 54%;
  min-height: 650px;
  padding: 58px 56px;
}

.hero h1 {
  max-width: 520px;
  font-size: clamp(60px, 5.15vw, 82px);
}

.hero-lead {
  max-width: 500px;
}

.hero-manifesto {
  position: absolute;
  right: 34px;
  bottom: 34px;
  z-index: 3;
  width: min(430px, 38%);
  margin: 0;
  padding: 25px 28px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 24px;
  background: rgba(35, 32, 27, 0.76);
  box-shadow: 0 22px 54px rgba(48, 37, 17, 0.2);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.hero-manifesto > p {
  margin-top: 18px;
}

.hero-manifesto h2 {
  font-size: clamp(21px, 1.65vw, 27px);
  line-height: 1.46;
}

.manifesto-meta {
  margin-top: 18px;
}

@media (max-width: 1100px) {
  .hero {
    padding-top: 96px;
    padding-bottom: 60px;
  }

  .hero-stage {
    min-height: 610px;
    background-position: 64% center;
  }

  .hero-copy {
    width: 58%;
    min-height: 610px;
    padding: 46px 38px;
  }

  .hero h1 {
    font-size: clamp(52px, 6vw, 68px);
  }

  .hero-manifesto {
    right: 24px;
    bottom: 24px;
    width: min(390px, 42%);
    padding: 22px 24px;
  }
}

@media (max-width: 820px) {
  .hero {
    display: block;
    padding: 86px 14px 64px;
  }

  .hero-stage {
    display: block;
    min-height: 0;
    padding-top: clamp(205px, 56vw, 330px);
    border-radius: 28px;
    background:
      linear-gradient(180deg, transparent 0, rgba(255, 253, 248, 0.04) 26%, rgba(255, 253, 248, 0.96) 42%, #fffdf8 56%),
      url("assets/visuals/hero-pearl-gold-v2.png") 78% 8% / 150% auto no-repeat,
      #fffdf8;
    box-shadow: 0 26px 70px rgba(88, 67, 31, 0.11);
  }

  .hero-copy {
    display: block;
    width: auto;
    min-height: 0;
    padding: 18px 24px 26px;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(48px, 10vw, 66px);
  }

  .hero-lead {
    max-width: 600px;
  }

  .hero-actions {
    display: flex;
    grid-template-columns: none;
  }

  .hero-actions .button {
    width: auto;
  }

  .hero-manifesto {
    position: relative;
    right: auto;
    bottom: auto;
    width: auto;
    max-width: none;
    margin: 0 24px 24px;
    padding: 24px 0 0;
    color: var(--ink);
    border: 0;
    border-top: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .manifesto-index,
  .hero-manifesto > p,
  .manifesto-meta {
    color: #8c7140;
  }

  .hero-manifesto h2 {
    font-size: clamp(24px, 5vw, 30px);
  }
}

@media (max-width: 540px) {
  .hero {
    padding: 76px 10px 52px;
  }

  .hero-stage {
    padding-top: clamp(172px, 51vw, 205px);
    border-radius: 24px;
    background:
      linear-gradient(180deg, transparent 0, rgba(255, 253, 248, 0.06) 24%, rgba(255, 253, 248, 0.97) 38%, #fffdf8 49%),
      url("assets/visuals/hero-pearl-gold-v2.png") 80% 2% / 165% auto no-repeat,
      #fffdf8;
  }

  .hero-copy {
    padding: 14px 18px 22px;
  }

  .hero h1 {
    margin-top: 16px;
    font-size: clamp(42px, 12vw, 52px);
    line-height: 1.04;
  }

  .hero-lead {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.72;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 22px;
  }

  .hero-actions .button {
    width: 100%;
    min-height: 46px;
    padding: 0 12px;
    gap: 8px;
    font-size: 12px;
  }

  .hero-manifesto {
    margin: 0 18px 20px;
    padding-top: 20px;
  }

  .hero-manifesto > p {
    margin-top: 16px;
    font-size: 12px;
  }

  .hero-manifesto h2 {
    margin-top: 8px;
    font-size: clamp(21px, 6.2vw, 25px);
    line-height: 1.48;
  }

  .manifesto-meta {
    margin-top: 16px;
  }
}

@media (max-width: 370px) {
  .hero-stage {
    padding-top: 162px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-manifesto h2 {
    font-size: 20px;
  }
}

/* Symmetric enablement matrix. */
@media (min-width: 821px) {
  .capability-wheel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: auto repeat(2, minmax(178px, auto));
  }

  .wheel-core {
    grid-column: 1 / -1;
    grid-row: 1;
    grid-template-columns: auto 1fr auto;
    min-height: 118px;
  }

  .wheel-core span {
    grid-column: 1;
    grid-row: 1;
  }

  .wheel-core p {
    grid-column: 2;
    grid-row: 1;
    align-self: center;
    margin-left: 20px;
  }

  .wheel-core strong {
    grid-column: 3;
    grid-row: 1;
    font-size: 72px;
  }

  .capability-1 { grid-column: 1; grid-row: 2; }
  .capability-2 { grid-column: 2; grid-row: 2; }
  .capability-3 { grid-column: 3; grid-row: 2; }
  .capability-4 { grid-column: 1; grid-row: 3; }
  .capability-5 { grid-column: 2; grid-row: 3; }
  .capability-6 { grid-column: 3; grid-row: 3; }
}

@media (max-width: 820px) {
  .capability-wheel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wheel-core {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .capability-1 { grid-column: 1; grid-row: 2; }
  .capability-2 { grid-column: 2; grid-row: 2; }
  .capability-3 { grid-column: 1; grid-row: 3; }
  .capability-4 { grid-column: 2; grid-row: 3; }
  .capability-5 { grid-column: 1; grid-row: 4; }
  .capability-6 { grid-column: 2; grid-row: 4; }
}

@media (max-width: 540px) {
  .culture-detail {
    padding: 18px;
  }

  .culture-detail b {
    margin-top: 9px;
    font-size: 15px;
  }

  .culture-detail p {
    margin-top: 7px;
    font-size: 10px;
    line-height: 1.55;
  }
}

@media (max-width: 370px) {
  .capability-wheel {
    grid-template-columns: 1fr;
  }

  .wheel-core,
  .capability-1,
  .capability-2,
  .capability-3,
  .capability-4,
  .capability-5,
  .capability-6 {
    grid-column: 1;
    grid-row: auto;
  }

  .wheel-core {
    order: -1;
  }

  .culture-detail {
    padding: 14px;
  }

  .culture-detail span {
    font-size: 7px;
  }

  .culture-detail b {
    font-size: 13px;
  }

  .culture-detail p {
    font-size: 9px;
  }
}

/* Compact first-screen composition. */
.hero {
  padding-top: 86px;
  padding-bottom: 34px;
}

.hero-stage {
  min-height: clamp(540px, calc(100svh - 150px), 620px);
}

.hero-copy {
  min-height: clamp(540px, calc(100svh - 150px), 620px);
  padding-top: 42px;
  padding-bottom: 42px;
}

.hero h1 {
  font-size: clamp(54px, 4.5vw, 72px);
}

.hero-manifesto {
  right: 26px;
  bottom: 26px;
  padding: 22px 25px;
}

/* Shared editorial title language for culture and enablement. */
.section-display-title {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 3px;
  isolation: isolate;
  padding: 16px 0 18px;
}

.section-display-title::before {
  content: attr(data-section);
  position: absolute;
  top: -24px;
  right: 0;
  z-index: -1;
  color: rgba(178, 140, 72, 0.1);
  font-size: clamp(76px, 8vw, 118px);
  font-weight: 220;
  line-height: 1;
  letter-spacing: -0.08em;
}

.section-display-title::after {
  content: "";
  width: 68px;
  height: 3px;
  margin-top: 14px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
}

.section-display-title span,
.section-display-title strong {
  display: block;
}

.section-display-title span {
  color: #292724;
  font-size: 0.72em;
  font-weight: 480;
  letter-spacing: -0.025em;
}

.section-display-title strong {
  color: transparent;
  font-size: 1.04em;
  font-weight: 620;
  background: linear-gradient(100deg, #1c1b19 0 24%, #a17b3b 72%, #6f542a);
  -webkit-background-clip: text;
  background-clip: text;
}

.flow-heading .eyebrow,
.system-heading .eyebrow {
  width: max-content;
  padding: 6px 10px;
  border: 1px solid rgba(128, 98, 47, 0.15);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.68);
}

.flow-heading .eyebrow::before,
.system-heading .eyebrow::before {
  width: 12px;
}

.system-heading .section-display-title {
  font-size: clamp(40px, 3.7vw, 54px);
}

@media (max-width: 820px) {
  .hero {
    padding-top: 68px;
    padding-bottom: 38px;
  }

  .hero-stage {
    min-height: 0;
    padding-top: clamp(145px, 42vw, 210px);
  }

  .hero-copy {
    min-height: 0;
    padding-top: 8px;
    padding-bottom: 18px;
  }

  .hero h1 {
    font-size: clamp(42px, 9vw, 58px);
  }

  .hero-lead {
    margin-top: 17px;
  }

  .hero-actions {
    margin-top: 18px;
  }

  .hero-manifesto {
    padding-top: 17px;
    margin-bottom: 16px;
  }

  .hero-manifesto > p {
    margin-top: 12px;
  }

  .hero-manifesto h2 {
    font-size: clamp(21px, 4.5vw, 27px);
  }

  .section-display-title {
    padding-top: 12px;
  }

  .system-heading .section-display-title {
    font-size: clamp(38px, 8vw, 48px);
  }

  .section-display-title::before {
    top: -12px;
    font-size: clamp(64px, 16vw, 88px);
  }
}

@media (max-width: 540px) {
  .hero {
    padding: 66px 8px 34px;
  }

  .hero-stage {
    padding-top: clamp(132px, 39vw, 160px);
  }

  .hero-copy {
    padding: 6px 16px 16px;
  }

  .hero h1 {
    margin-top: 13px;
    font-size: clamp(38px, 10.5vw, 45px);
  }

  .hero-lead {
    margin-top: 15px;
    font-size: 13px;
  }

  .hero-actions {
    margin-top: 16px;
  }

  .hero-manifesto {
    margin: 0 16px 14px;
    padding-top: 15px;
  }

  .hero-manifesto h2 {
    font-size: clamp(19px, 5.2vw, 22px);
  }

  .manifesto-meta {
    margin-top: 12px;
  }

  .flow-heading h2,
  .system-heading h2 {
    font-size: clamp(34px, 9.5vw, 40px);
  }

  .system-heading .section-display-title {
    font-size: clamp(32px, 8.5vw, 38px);
  }

  .section-display-title::after {
    width: 52px;
    margin-top: 11px;
  }
}

/* Mobile content must remain visible and keep one stable reading order. */
@media (max-width: 820px) {
  .yk-intro {
    min-height: 100dvh;
    padding:
      max(24px, env(safe-area-inset-top, 0px))
      24px
      max(24px, env(safe-area-inset-bottom, 0px));
  }

  .yk-intro.intro-ready {
    animation: intro-exit 0.34s ease 2.25s forwards;
  }

  .intro-mark {
    gap: 28px;
    transform: translateY(-4vh);
  }

  .intro-text {
    font-size: clamp(52px, 16vw, 78px);
  }

  .yk-intro.intro-ready .intro-text span {
    animation-duration: 1.08s;
    animation-delay: 0.48s;
  }

  .intro-text::before {
    height: 86%;
  }

  .yk-intro.intro-ready .intro-text::before {
    animation-duration: 1s;
    animation-delay: 0.54s;
  }

  .yk-intro.intro-ready .intro-text::after {
    animation-delay: 0.66s;
  }

  .intro-logo {
    width: clamp(108px, 28vw, 142px);
  }

  .yk-intro.intro-ready .intro-logo {
    animation-delay: 0s;
  }

  html {
    min-width: 0;
    scroll-padding-top: calc(80px + env(safe-area-inset-top, 0px));
  }

  body {
    min-width: 0;
  }

  .site-header,
  .site-header.scrolled {
    position: sticky;
    top: max(8px, env(safe-area-inset-top, 0px));
    right: auto;
    left: auto;
    width: calc(100% - 16px);
    height: 64px;
    margin: max(8px, env(safe-area-inset-top, 0px)) 8px 0;
    padding:
      0
      max(14px, env(safe-area-inset-right, 0px))
      0
      max(14px, env(safe-area-inset-left, 0px));
    border-radius: 20px 20px 0 0;
    border-bottom-color: transparent;
    transform: none;
  }

  .site-header.menu-active {
    position: fixed;
    top: max(8px, env(safe-area-inset-top, 0px));
    right: max(8px, env(safe-area-inset-right, 0px));
    bottom: max(8px, env(safe-area-inset-bottom, 0px));
    left: max(8px, env(safe-area-inset-left, 0px));
    width: auto;
    margin: 0;
    border-radius: 20px;
    border-bottom-color: rgba(119, 94, 47, 0.12);
  }

  .brand img {
    height: 46px;
  }

  .brand {
    position: relative;
    z-index: 102;
  }

  .hero {
    padding-top: 0;
  }

  .hero-stage {
    margin-top: -1px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
  }

  .hero-stage,
  .hero-copy,
  .hero-actions {
    min-width: 0;
    max-width: 100%;
  }

  .hero-actions .button {
    min-width: 0;
  }

  .site-header::after {
    display: none;
  }

  .hero-manifesto {
    margin-top: 16px;
    padding-top: 0;
    border-top: 0;
  }

  .reveal,
  .reveal.visible {
    opacity: 1;
    transform: none;
    transition-delay: 0ms !important;
  }

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

  .wheel-core {
    grid-column: 1 / -1;
    grid-row: 1;
    order: 0;
  }

  .capability-1 { grid-column: 1; grid-row: 2; }
  .capability-2 { grid-column: 2; grid-row: 2; }
  .capability-3 { grid-column: 1; grid-row: 3; }
  .capability-4 { grid-column: 2; grid-row: 3; }
  .capability-5 { grid-column: 1; grid-row: 4; }
  .capability-6 { grid-column: 2; grid-row: 4; }
}

@media (max-width: 540px) {
  .site-header,
  .site-header.scrolled {
    height: 62px;
  }

  .brand img {
    height: 44px;
  }

  .hero {
    padding-top: 0;
  }

  .hero-manifesto {
    margin: 14px 16px 14px;
  }
}

@media (max-width: 820px) {
  .site-header.menu-active,
  .site-header.scrolled.menu-active {
    height: auto;
  }
}

@media (max-width: 370px) {
  .hero-actions {
    grid-template-columns: 1fr;
  }

  .hero-actions .button {
    width: 100%;
  }

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

  .wheel-core {
    grid-column: 1 / -1;
    grid-row: 1;
    order: 0;
  }

  .capability-1 { grid-column: 1; grid-row: 2; }
  .capability-2 { grid-column: 2; grid-row: 2; }
  .capability-3 { grid-column: 1; grid-row: 3; }
  .capability-4 { grid-column: 2; grid-row: 3; }
  .capability-5 { grid-column: 1; grid-row: 4; }
  .capability-6 { grid-column: 2; grid-row: 4; }

  .capability {
    padding: 16px;
  }

  .capability h3 {
    font-size: 17px;
  }
}

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

  .yk-intro.intro-ready {
    animation: intro-exit 0.01ms linear 0.8s forwards;
  }

  .intro-text span {
    clip-path: inset(0 0 0 0);
  }

  .intro-logo {
    opacity: 1;
    transform: none;
  }

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

/* 首页首屏双流计划重点入口 */
.hero-actions {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) auto;
  align-items: center;
  width: min(100%, 540px);
}

.hero-feature-link {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 88px;
  padding: 16px 17px 15px 23px;
  overflow: hidden;
  color: #fff;
  border: 1px solid rgba(211, 176, 102, 0.62);
  border-radius: 24px;
  background: linear-gradient(135deg, #1c1b19 0%, #292318 64%, #624a25 150%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 18px 38px rgba(67, 49, 20, 0.24);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.hero-feature-link::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 88% 14%, rgba(217, 181, 105, 0.2), transparent 38%);
  pointer-events: none;
}

.hero-feature-link:hover {
  transform: translateY(-3px);
  border-color: rgba(224, 195, 132, 0.9);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 22px 44px rgba(67, 49, 20, 0.3);
}

.hero-feature-link:active {
  transform: translateY(-1px) scale(0.99);
}

.hero-feature-link:focus-visible {
  outline: 3px solid rgba(166, 125, 54, 0.36);
  outline-offset: 3px;
}

.hero-feature-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
}

.hero-feature-copy strong {
  white-space: nowrap;
  font-size: 20px;
  font-weight: 720;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.hero-feature-copy small {
  margin-top: 8px;
  color: #e3ca91;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.28em;
}

.hero-feature-icon {
  display: grid;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(233, 207, 150, 0.34);
  border-radius: 50%;
  color: #f1dba6;
  background: rgba(255, 255, 255, 0.06);
}

.hero-feature-icon .ui-icon {
  width: 18px;
  height: 18px;
}

.hero-explore-link {
  white-space: nowrap;
}

@media (max-width: 540px) {
  .hero-actions {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    width: calc(100% - 24px);
  }

  .hero-feature-link {
    min-width: 0;
    max-width: 100%;
    width: 100%;
    min-height: 80px;
    padding: 14px 15px 13px 19px;
    border-radius: 20px;
  }

  .hero-feature-copy strong {
    font-size: 18px;
  }

  .hero-feature-copy small {
    margin-top: 7px;
    font-size: 11px;
  }

  .hero-feature-icon {
    flex-basis: 38px;
    width: 38px;
    height: 38px;
  }

  .hero-explore-link {
    width: 100%;
  }
}