/* ==========================================================================
   Unisys Intelligent Equipment — site stylesheet
   Palette: warm black, bone, signal gold. Display: Bahnschrift. CN: Noto Sans SC.
   ========================================================================== */

:root {
  --bg: #0f0f0d;
  --bg-deep: #0a0a09;
  --panel: #161613;
  --panel-2: #1c1b17;
  --bone: #f3efe6;
  --bone-2: #e9e3d7;
  --bone-dim: #cfc8ba;
  --ink: #14130f;
  --muted: #a6a196;
  --faint: #8b867c;
  --gold: #e3a24a;
  --gold-hi: #f2bd6b;
  --gold-deep: #a96f24;
  --line: rgba(243, 239, 230, 0.12);
  --line-2: rgba(243, 239, 230, 0.22);
  --line-gold: rgba(227, 162, 74, 0.45);
  --container: 1360px;
  --gutter: clamp(20px, 4.2vw, 56px);
  --header-h: 82px;
  --font-display: "Bahnschrift", "DIN Alternate", "Segoe UI Variable Display", "Segoe UI", sans-serif;
  --font-body: "Segoe UI Variable Text", "Segoe UI", "MiSans", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-cn: "Noto Sans SC", "MiSans", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-2: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.menu-open { overflow: hidden; }

html[lang="zh-CN"] body {
  font-family: var(--font-cn);
  letter-spacing: 0.01em;
  line-height: 1.75;
}

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

img { height: auto; }

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

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

button { cursor: pointer; }

h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }

ul, ol { padding: 0; list-style: none; }

::selection { background: var(--gold); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--gold);
  color: var(--ink);
  font-size: 13px;
  transform: translateY(-160%);
  transition: transform 0.3s var(--ease);
}

.skip-link:focus { transform: none; }

/* --------------------------------------------------------------------------
   Layout primitives
   -------------------------------------------------------------------------- */

.container {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.section {
  position: relative;
  padding: clamp(72px, 8vw, 120px) 0;
}

.section--tight { padding: clamp(52px, 5.6vw, 84px) 0; }

.section--panel {
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section--deep { background: var(--bg-deep); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  gap: clamp(32px, 5vw, 80px);
  align-items: end;
  margin-bottom: clamp(40px, 5vw, 64px);
}

.section-head__side p {
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.7;
  max-width: 42ch;
}

.section-head__side .text-link { margin-top: 20px; }

.section-head--stack { display: block; }

/* --------------------------------------------------------------------------
   Type
   -------------------------------------------------------------------------- */

.display,
h1, h2 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 0.98;
}

html[lang="zh-CN"] .display,
html[lang="zh-CN"] h1,
html[lang="zh-CN"] h2 {
  font-family: var(--font-cn);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.12;
}

.display em,
h1 em,
h2 em {
  font-style: normal;
  color: var(--gold);
}

h1.display { font-size: clamp(46px, 6.1vw, 92px); }

html[lang="zh-CN"] h1.display { font-size: clamp(40px, 5.4vw, 82px); }

h2.display { font-size: clamp(32px, 3.7vw, 58px); }

html[lang="zh-CN"] h2.display { font-size: clamp(30px, 3.4vw, 54px); }

h3 { font-weight: 600; letter-spacing: -0.015em; line-height: 1.25; }

.lede {
  color: var(--bone-dim);
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.65;
  max-width: 54ch;
}

html[lang="zh-CN"] .lede { line-height: 1.85; }

.body-copy {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.body-copy + .body-copy { margin-top: 16px; }

html[lang="zh-CN"] .body-copy { font-size: 15.5px; line-height: 1.9; }

.caption {
  font-family: var(--font-display);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
}

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

/* Eyebrow: index + rule + label */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 22px;
}

html[lang="zh-CN"] .eyebrow { letter-spacing: 0.12em; }

.eyebrow__index { color: var(--gold); font-variant-numeric: tabular-nums; white-space: nowrap; }

.eyebrow__line {
  width: clamp(22px, 3vw, 46px);
  height: 1px;
  background: var(--line-2);
  flex: none;
}

.eyebrow--light { color: var(--bone-dim); }

/* Links & buttons */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bone);
  border-bottom: 1px solid var(--line-2);
  padding-bottom: 6px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.text-link svg { width: 14px; height: 14px; transition: transform 0.3s var(--ease); }

.text-link:hover { color: var(--gold); border-color: var(--gold); }

.text-link:hover svg { transform: translateX(4px); }

.btn {
  --btn-bg: var(--gold);
  --btn-ink: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 26px;
  border: 1px solid transparent;
  background: var(--btn-bg);
  color: var(--btn-ink);
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

html[lang="zh-CN"] .btn { letter-spacing: 0.14em; font-size: 13px; }

.btn svg { width: 14px; height: 14px; transition: transform 0.3s var(--ease); }

.btn:hover { background: var(--gold-hi); }

.btn:hover svg { transform: translate(3px, -3px); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-ink: var(--bone);
  border-color: var(--line-2);
}

.btn--ghost:hover { border-color: var(--gold); color: var(--gold); background: transparent; }

.btn--ghost:hover svg { transform: translateX(4px); }

.btn--dark { --btn-bg: var(--ink); --btn-ink: var(--bone); }

.btn--dark:hover { background: #000; }

.btn--bone { --btn-bg: var(--bone); --btn-ink: var(--ink); }

.btn--bone:hover { background: #fff; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
    backdrop-filter 0.35s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(15, 15, 13, 0.86);
  border-bottom-color: var(--line);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand { display: inline-flex; align-items: center; gap: 13px; flex: none; }

.brand__mark { width: 34px; height: 34px; flex: none; }

.brand__text { display: flex; flex-direction: column; gap: 3px; }

.brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.2em;
  line-height: 1;
  color: var(--bone);
}

.brand__sub {
  font-family: var(--font-display);
  font-size: 7.5px;
  font-weight: 500;
  letter-spacing: 0.24em;
  line-height: 1;
  color: var(--faint);
  text-transform: uppercase;
}

.main-nav { display: flex; align-items: center; gap: clamp(2px, 1vw, 14px); }

.nav-link {
  position: relative;
  padding: 10px 12px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bone-dim);
  white-space: nowrap;
  transition: color 0.25s var(--ease);
}

html[lang="zh-CN"] .nav-link { letter-spacing: 0.06em; font-size: 12.5px; }

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.nav-link:hover,
.nav-link.is-active { color: var(--bone); }

.nav-link.is-active::after,
.nav-link:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 16px; flex: none; }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--faint);
}

.lang-switch a { padding: 4px 2px; transition: color 0.2s; }

.lang-switch a:hover { color: var(--bone); }

.lang-switch .is-active { color: var(--gold); }

.lang-switch__sep { width: 1px; height: 10px; background: var(--line-2); }

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  padding: 0 18px;
  border: 1px solid var(--line-2);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
}

.header-cta svg { width: 12px; height: 12px; }

.header-cta:hover { border-color: var(--gold); color: var(--gold); }

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line-2);
  background: transparent;
  position: relative;
}

.menu-toggle__lines {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.menu-toggle__lines span {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--bone);
  transition: transform 0.3s var(--ease), opacity 0.2s;
}

.menu-open .menu-toggle__lines span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .menu-toggle__lines span:nth-child(2) { opacity: 0; }
.menu-open .menu-toggle__lines span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--bg-deep);
  padding: calc(var(--header-h) + 40px) var(--gutter) 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.35s var(--ease), visibility 0.35s, transform 0.35s var(--ease);
}

.mobile-menu.is-open { opacity: 1; visibility: visible; transform: none; }

.mobile-menu__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: clamp(28px, 7vw, 42px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
}

html[lang="zh-CN"] .mobile-menu__link { font-family: var(--font-cn); font-weight: 800; }

.mobile-menu__link span {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.mobile-menu__link:hover { color: var(--gold); }

.mobile-menu__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  padding-top: 28px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--faint);
}

.mobile-menu__foot a { color: var(--bone-dim); text-transform: none; letter-spacing: 0.02em; }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(48px, 7vw, 92px));
  overflow: hidden;
  background: var(--bg);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/hero-glow.jpg");
  background-size: cover;
  background-position: 60% 40%;
  opacity: 0.17;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.9) 0%, rgba(0,0,0,.45) 55%, transparent 100%);
  mask-image: linear-gradient(180deg, rgba(0,0,0,.9) 0%, rgba(0,0,0,.45) 55%, transparent 100%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, rgba(243,239,230,.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(243,239,230,.035) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 0%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 0%, transparent 75%);
  opacity: 0.5;
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: end;
  padding-bottom: clamp(48px, 6vw, 76px);
}

.hero-copy { padding-bottom: 4px; }

.hero-title {
  margin-bottom: 28px;
  max-width: 14ch;
}

html[lang="zh-CN"] .hero-title { max-width: 11em; }

.hero__lede {
  max-width: 50ch;
  color: var(--bone-dim);
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.7;
}

html[lang="zh-CN"] .hero__lede { line-height: 1.9; }

.hero__actions { margin-top: 34px; }

.hero__signature {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: clamp(34px, 4vw, 56px);
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--faint);
}

.hero__sig-line { width: 42px; height: 1px; background: var(--line-2); }

/* System panel */
.sys-panel {
  position: relative;
  border: 1px solid var(--line-2);
  background: linear-gradient(160deg, rgba(29,28,24,.92), rgba(17,17,14,.96));
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.8);
}

.sys-panel::before,
.sys-panel::after,
.plate::before,
.plate::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 9px;
  border-color: var(--gold);
  border-style: solid;
  pointer-events: none;
}

.sys-panel::before,
.plate::before { top: -1px; left: -1px; border-width: 1px 0 0 1px; }

.sys-panel::after,
.plate::after { bottom: -1px; right: -1px; border-width: 0 1px 1px 0; }

.sys-panel__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
}

.sys-panel__id { color: var(--gold); }

.sys-panel__body { padding: 6px 16px; }

.sys-mod {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.sys-mod:last-child { border-bottom: 0; }

.sys-mod__thumb {
  width: 66px;
  height: 52px;
  background: var(--bone);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.sys-mod__thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  padding: 4px;
  filter: saturate(0.9) contrast(1.03);
}

.sys-mod__meta { display: flex; flex-direction: column; gap: 3px; min-width: 0; }

.sys-mod__index {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.sys-mod__name { font-size: 14px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; }

.sys-mod__spec {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sys-mod__state {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.sys-mod__state::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 8px rgba(227, 162, 74, 0.8);
}

.sys-panel__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 16px;
  border-top: 1px solid var(--line);
  background: rgba(243, 239, 230, 0.03);
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.sys-panel__foot strong { color: var(--bone-dim); font-weight: 500; }

/* Hero stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}

.hero-stat {
  padding: 26px 26px 30px 0;
  border-right: 1px solid var(--line);
}

.hero-stat:last-child { border-right: 0; }

.hero-stat__value {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-size: clamp(34px, 3.4vw, 48px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--bone);
}

.hero-stat__value em {
  font-style: normal;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--faint);
}

.hero-stat__label {
  display: block;
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

html[lang="zh-CN"] .hero-stat__label { font-size: 12.5px; letter-spacing: 0.02em; }

/* --------------------------------------------------------------------------
   Ticker
   -------------------------------------------------------------------------- */

.ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 16px 0;
  background: var(--bg-deep);
}

.ticker__track {
  display: flex;
  width: max-content;
  animation: ticker 46s linear infinite;
}

.ticker:hover .ticker__track { animation-play-state: paused; }

.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  padding-right: 26px;
  font-family: var(--font-display);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  white-space: nowrap;
}

.ticker__item::after {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--gold);
  transform: rotate(45deg);
  opacity: 0.7;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* --------------------------------------------------------------------------
   Positioning
   -------------------------------------------------------------------------- */

.position-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}

.position-lead { position: sticky; top: calc(var(--header-h) + 40px); }

.position-lead .display { margin-bottom: 26px; }

.position-lead .body-copy { max-width: 46ch; }

.pillar-list { border-top: 1px solid var(--line-2); }

.pillar {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.pillar__icon { width: 38px; height: 38px; color: var(--gold); margin-top: 3px; }

.pillar__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.pillar__head h3 { font-size: clamp(19px, 1.6vw, 23px); }

.pillar__tag {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.pillar p { color: var(--muted); font-size: 14.5px; line-height: 1.7; max-width: 52ch; }

/* Four rights strip */
.rights-strip {
  margin-top: clamp(48px, 6vw, 72px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.rights-strip__item {
  padding: 24px 22px 26px 0;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rights-strip__item:last-child { border-right: 0; }

.rights-strip__num {
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.rights-strip__word {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 30px);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

html[lang="zh-CN"] .rights-strip__word { font-family: var(--font-cn); font-weight: 800; }

.rights-strip__word small {
  display: block;
  margin-top: 4px;
  font-family: var(--font-body);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--faint);
}

/* --------------------------------------------------------------------------
   Solution cards
   -------------------------------------------------------------------------- */

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.solution-card {
  min-width: 0;
  position: relative;
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: border-color 0.35s var(--ease), background 0.35s var(--ease),
    transform 0.35s var(--ease);
}

.solution-card--wide { grid-column: span 6; }

.solution-card:hover {
  border-color: var(--line-gold);
  background: var(--panel-2);
  transform: translateY(-3px);
}

.solution-card__media {
  position: relative;
  background: var(--bone);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.solution-card--wide .solution-card__media { aspect-ratio: 16 / 8.6; }
.solution-card__media { aspect-ratio: 4 / 3; }

.solution-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
  mix-blend-mode: multiply;
  filter: saturate(0.9) contrast(1.03);
  transition: transform 0.7s var(--ease);
}

.solution-card--wide .solution-card__media img { padding: 18px 26px; }

.solution-card:hover .solution-card__media img { transform: scale(1.025); }

.solution-card__media-label {
  position: absolute;
  top: 12px;
  left: 14px;
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(20, 19, 15, 0.55);
}

.solution-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 22px 24px 24px;
}

.solution-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.solution-card__top span:first-child { color: var(--gold); }

.solution-card h3 {
  font-family: var(--font-display);
  font-size: clamp(22px, 1.9vw, 28px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 9px;
}

html[lang="zh-CN"] .solution-card h3 { font-family: var(--font-cn); font-weight: 800; }

.solution-card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.68;
  margin-bottom: 18px;
}

.solution-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 4px;
}

.solution-card__tags span {
  padding: 5px 9px;
  border: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.solution-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.circle-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  color: var(--bone-dim);
  font-size: 12px;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.solution-card:hover .circle-arrow {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   Proof / data
   -------------------------------------------------------------------------- */

.data-section { position: relative; overflow: hidden; }

.data-section::before {
  content: "";
  position: absolute;
  width: 60vw;
  height: 60vw;
  max-width: 900px;
  max-height: 900px;
  left: -20vw;
  top: -10vw;
  background: radial-gradient(circle, rgba(227, 162, 74, 0.14), transparent 62%);
  pointer-events: none;
}

.data-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(40px, 6vw, 90px);
  align-items: start;
}

.data-copy { position: sticky; top: calc(var(--header-h) + 40px); }

.data-copy .display { margin-bottom: 24px; }

.data-copy .body-copy { max-width: 40ch; }

.data-footnote {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--faint);
  max-width: 40ch;
}

.data-rows { border-top: 1px solid var(--line-2); }

.data-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.55fr) minmax(0, 1fr);
  gap: 26px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.data-row__value {
  font-family: var(--font-display);
  font-size: clamp(42px, 4.4vw, 66px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.data-row__value sup {
  font-size: 0.4em;
  vertical-align: super;
  letter-spacing: 0;
  color: var(--gold-hi);
}

.data-row__label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.data-row__body h3 {
  font-size: 20px;
  margin-bottom: 7px;
}

.data-row__body p { color: var(--muted); font-size: 14px; line-height: 1.65; max-width: 46ch; }

.data-row__case {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--bone-dim);
}

.data-row__case svg { width: 11px; height: 11px; color: var(--gold); }

/* --------------------------------------------------------------------------
   Cases
   -------------------------------------------------------------------------- */

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.case-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: border-color 0.3s var(--ease);
}

.case-card:hover { border-color: var(--line-gold); }

.case-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bone);
}

.case-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.42) sepia(0.2) contrast(1.06) brightness(0.84);
  transition: transform 0.8s var(--ease), filter 0.4s;
}

.case-card:hover .case-card__media img { transform: scale(1.04); filter: saturate(0.9) contrast(1.05) brightness(0.96); }

.case-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,15,13,.05) 40%, rgba(15,15,13,.72) 100%);
}

.case-card__tag {
  position: absolute;
  z-index: 1;
  top: 14px;
  left: 14px;
  padding: 5px 9px;
  background: rgba(15, 15, 13, 0.72);
  border: 1px solid var(--line-2);
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-dim);
  backdrop-filter: blur(6px);
}

.case-card__body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }

.case-card h3 { font-size: 21px; margin-bottom: 6px; }

.case-card__sub { color: var(--faint); font-size: 11.5px; letter-spacing: 0.03em; margin-bottom: 18px; }

.case-metrics { display: flex; flex-wrap: wrap; gap: 12px 20px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); }

.case-metric { display: flex; flex-direction: column; gap: 2px; }

.case-metric strong {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--gold);
  line-height: 1.1;
}

.case-metric span { font-size: 9.5px; letter-spacing: 0.04em; color: var(--faint); line-height: 1.35; }

/* --------------------------------------------------------------------------
   Process
   -------------------------------------------------------------------------- */

.process-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}

.process-copy { position: sticky; top: calc(var(--header-h) + 40px); }

.process-copy .display { margin-bottom: 22px; }

.process-copy .body-copy { max-width: 40ch; margin-bottom: 28px; }

.process-aside {
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  max-width: 300px;
}

.process-list { border-top: 1px solid var(--line-2); }

.process-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 18px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s;
}

.process-item__num {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-top: 6px;
}

.process-item h3 { font-size: clamp(19px, 1.7vw, 24px); margin-bottom: 7px; }

.process-item p { color: var(--muted); font-size: 14px; line-height: 1.7; max-width: 52ch; }

/* --------------------------------------------------------------------------
   About teaser / image bands
   -------------------------------------------------------------------------- */

.about-teaser {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(36px, 5vw, 80px);
  align-items: center;
}

.figure-frame {
  position: relative;
  border: 1px solid var(--line-2);
  overflow: hidden;
  background: var(--panel-2);
}

.figure-frame img {
  width: 100%;
  aspect-ratio: 4 / 3.05;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06) brightness(0.85);
}

.figure-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, transparent 45%, rgba(15, 15, 13, 0.65));
  pointer-events: none;
}

.figure-frame figcaption {
  position: absolute;
  z-index: 1;
  left: 18px;
  bottom: 16px;
  right: 18px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-dim);
}

.figure-frame figcaption span:last-child { color: var(--faint); }

.about-teaser .display { margin-bottom: 22px; }

.facts-row {
  display: flex;
  gap: clamp(24px, 3vw, 48px);
  margin: 30px 0;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fact__value {
  font-family: var(--font-display);
  font-size: clamp(26px, 2.4vw, 34px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--bone);
}

.fact__label { display: block; margin-top: 6px; font-size: 11px; color: var(--faint); letter-spacing: 0.03em; }

/* --------------------------------------------------------------------------
   CTA band
   -------------------------------------------------------------------------- */

.cta-band {
  position: relative;
  background: var(--bone);
  color: var(--ink);
  overflow: hidden;
  padding: clamp(64px, 8vw, 112px) 0;
}

.cta-band::before {
  content: "U";
  position: absolute;
  right: 3%;
  bottom: -0.04em;
  font-family: var(--font-display);
  font-size: 25vw;
  font-weight: 600;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(20, 19, 15, 0.1);
  pointer-events: none;
}

.cta-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: end;
}

.cta-band .eyebrow { color: rgba(20, 19, 15, 0.55); }
.cta-band .eyebrow__line { background: rgba(20, 19, 15, 0.2); }
.cta-band .eyebrow__index { color: var(--gold-deep); }

.cta-band h2 {
  font-size: clamp(32px, 4vw, 60px);
  margin-bottom: 20px;
  max-width: 20ch;
}

.cta-band h2 em { color: var(--gold-deep); }

.cta-band p {
  color: rgba(20, 19, 15, 0.66);
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.7;
}

.cta-actions { display: flex; flex-direction: column; gap: 18px; align-items: flex-start; }

.cta-actions__note {
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(20, 19, 15, 0.5);
}

.cta-actions .text-link { color: var(--ink); border-color: rgba(20, 19, 15, 0.25); }
.cta-actions .text-link:hover { color: var(--gold-deep); border-color: var(--gold-deep); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
  padding-top: clamp(56px, 7vw, 90px);
  overflow: hidden;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(280px, 1.6fr) repeat(3, minmax(140px, 0.8fr));
  gap: clamp(28px, 4vw, 64px);
  padding-bottom: 54px;
}

.footer-brand p {
  margin-top: 20px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
  max-width: 38ch;
}

.footer-brand__meta {
  margin-top: 18px;
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  line-height: 1.9;
}

.footer-col h3 {
  font-family: var(--font-display);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 20px;
}

.footer-col li + li { margin-top: 10px; }

.footer-col a, .footer-col p {
  color: var(--bone-dim);
  font-size: 13.5px;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--gold); }

.footer-contact__item { margin-bottom: 18px; }

.footer-contact__label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.footer-contact__item a,
.footer-contact__item p { font-size: 13.5px; line-height: 1.55; }

.footer-watermark {
  font-family: var(--font-display);
  font-size: clamp(72px, 15vw, 250px);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 0.72;
  text-align: center;
  color: transparent;
  -webkit-text-stroke: 1px rgba(243, 239, 230, 0.09);
  user-select: none;
  pointer-events: none;
  transform: translateY(0.1em);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 22px 0 26px;
  border-top: 1px solid var(--line);
  font-size: 10.5px;
  letter-spacing: 0.03em;
  color: var(--faint);
}

.footer-bottom a:hover { color: var(--bone-dim); }

/* Back to top */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 60;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-2);
  background: rgba(15, 15, 13, 0.78);
  backdrop-filter: blur(8px);
  color: var(--bone-dim);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, border-color 0.2s, color 0.2s;
}

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

.back-to-top:hover { border-color: var(--gold); color: var(--gold); }

.back-to-top svg { width: 14px; height: 14px; }

/* --------------------------------------------------------------------------
   Inner page hero
   -------------------------------------------------------------------------- */

.page-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(56px, 7vw, 96px)) 0 clamp(48px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/hero-glow.jpg");
  background-size: cover;
  background-position: 70% 50%;
  opacity: 0.22;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
}

.page-hero::after {
  content: attr(data-index);
  position: absolute;
  right: var(--gutter);
  bottom: -0.18em;
  font-family: var(--font-display);
  display: none;
  font-size: clamp(120px, 20vw, 300px);
  font-weight: 600;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(243, 239, 230, 0.07);
  pointer-events: none;
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.6fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: end;
}

.page-hero h1 { font-size: clamp(40px, 5.2vw, 78px); margin-bottom: 20px; max-width: 16ch; }

html[lang="zh-CN"] .page-hero h1 { font-size: clamp(36px, 4.6vw, 68px); max-width: 13em; }

.page-hero .lede { max-width: 56ch; }

.page-hero__side {
  border-left: 1px solid var(--line);
  padding-left: clamp(20px, 3vw, 36px);
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.7;
}

.page-hero__side strong {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Solutions page
   -------------------------------------------------------------------------- */

.solutions-index {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.solutions-index a {
  padding: 18px 16px 18px 0;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: color 0.2s, background 0.2s;
}

.solutions-index a:last-child { border-right: 0; }

.solutions-index a:hover { color: var(--gold); }

.solutions-index__num {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.solutions-index__name { font-size: 13.5px; font-weight: 600; line-height: 1.3; }

.solution-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
  padding: clamp(56px, 7vw, 92px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.solution-detail:last-of-type { border-bottom: 0; }

.solution-detail__visual { position: sticky; top: calc(var(--header-h) + 28px); }

.solution-detail__plate {
  position: relative;
  background: var(--bone);
  border: 1px solid rgba(243, 239, 230, 0.2);
  overflow: hidden;
}

.solution-detail__plate img {
  width: 100%;
  aspect-ratio: 4 / 3.2;
  object-fit: contain;
  padding: clamp(20px, 4vw, 46px);
  mix-blend-mode: multiply;
  filter: saturate(0.92) contrast(1.03);
}

.solution-detail__plate-caption {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 16px;
  background: rgba(20, 19, 15, 0.06);
  border-top: 1px solid rgba(20, 19, 15, 0.12);
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(20, 19, 15, 0.56);
}

.solution-detail__thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.solution-detail__thumb {
  position: relative;
  background: var(--bone);
  border: 1px solid rgba(243, 239, 230, 0.18);
  overflow: hidden;
}

.solution-detail__thumb img {
  width: 100%;
  aspect-ratio: 1.55 / 1;
  object-fit: contain;
  padding: 12px;
  mix-blend-mode: multiply;
  filter: saturate(0.92) contrast(1.03);
}

.solution-detail__thumb span {
  position: absolute;
  left: 8px;
  bottom: 6px;
  font-family: var(--font-display);
  font-size: 7.5px;
  letter-spacing: 0.12em;
  color: rgba(20, 19, 15, 0.5);
}

.solution-detail__head { margin-bottom: 26px; }

.solution-detail__index {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 14px;
}

.solution-detail__index b { color: var(--gold); font-weight: 500; }

.solution-detail h2 {
  font-size: clamp(30px, 3vw, 44px);
  margin-bottom: 14px;
}

.solution-detail__tagline {
  font-family: var(--font-display);
  font-size: clamp(15px, 1.2vw, 17px);
  letter-spacing: 0.01em;
  color: var(--gold);
  line-height: 1.4;
  margin-bottom: 14px;
}

html[lang="zh-CN"] .solution-detail__tagline { font-family: var(--font-cn); font-weight: 700; }

.solution-detail__lede { color: var(--muted); font-size: 15px; line-height: 1.75; max-width: 52ch; }

.module-list { margin-top: 28px; border-top: 1px solid var(--line-2); }

.module {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.module__num {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 5px;
}

.module h3 { font-size: 17px; margin-bottom: 5px; }

.module p { font-size: 13.5px; color: var(--muted); line-height: 1.65; }

.module__hl {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 9px;
}

.module__hl span {
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bone-dim);
  border: 1px solid var(--line);
  padding: 3px 7px;
}

.solution-outcome {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 26px;
  padding: 18px 20px;
  border: 1px solid var(--line-gold);
  background: rgba(227, 162, 74, 0.05);
}

.solution-outcome strong {
  font-family: var(--font-display);
  font-size: clamp(16px, 1.4vw, 19px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--gold-hi);
}

html[lang="zh-CN"] .solution-outcome strong { font-family: var(--font-cn); font-weight: 800; }

.solution-outcome span {
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}

/* Included strip */
.included-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.included-item {
  background: var(--bg);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.included-item__num {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.included-item h3 { font-size: 17px; }

.included-item p { font-size: 13px; color: var(--muted); line-height: 1.65; }

/* --------------------------------------------------------------------------
   About page
   -------------------------------------------------------------------------- */

.manifest {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(36px, 6vw, 96px);
  align-items: start;
}

.manifest__quote {
  font-family: var(--font-display);
  font-size: clamp(26px, 2.9vw, 42px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.22;
}

html[lang="zh-CN"] .manifest__quote { font-family: var(--font-cn); font-weight: 800; line-height: 1.45; }

.manifest__quote em { font-style: normal; color: var(--gold); }

.manifest__body p { color: var(--muted); font-size: 15.5px; line-height: 1.8; }

.manifest__body p + p { margin-top: 16px; }

.manifest__sig {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.wide-figure {
  position: relative;
  border: 1px solid var(--line-2);
  overflow: hidden;
}

.wide-figure img {
  width: 100%;
  aspect-ratio: 21 / 8.5;
  object-fit: cover;
  filter: saturate(0.68) contrast(1.08) brightness(0.78);
}

.wide-figure figcaption {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 40px 22px 18px;
  background: linear-gradient(transparent, rgba(10, 10, 9, 0.85));
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bone-dim);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line);
}

.value-item { padding: 26px 24px 30px 0; border-right: 1px solid var(--line); }

.value-item:last-child { border-right: 0; }

.value-item__num {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--gold);
  display: block;
  margin-bottom: 34px;
}

.value-item h3 { font-size: 18px; margin-bottom: 8px; }

.value-item p { font-size: 13px; color: var(--muted); line-height: 1.65; }

.two-col-copy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 64px);
}

/* --------------------------------------------------------------------------
   Cases page
   -------------------------------------------------------------------------- */

.results-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.results-bar__item { padding: 24px 20px 26px 0; border-right: 1px solid var(--line); }

.results-bar__item:last-child { border-right: 0; }

.results-bar__value {
  font-family: var(--font-display);
  font-size: clamp(28px, 2.8vw, 40px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--bone);
}

.results-bar__value em { font-style: normal; color: var(--gold); }

.results-bar__label { display: block; margin-top: 8px; font-size: 11px; color: var(--faint); }

.case-study {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
  padding: clamp(56px, 7vw, 96px) 0;
  border-bottom: 1px solid var(--line);
}

.case-study:last-of-type { border-bottom: 0; }

.case-study__visual { position: sticky; top: calc(var(--header-h) + 28px); }

.case-study__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
}

.case-study__media img {
  width: 100%;
  aspect-ratio: 4 / 3.1;
  object-fit: cover;
  filter: saturate(0.42) sepia(0.2) contrast(1.06) brightness(0.82);
}

.case-study__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(190deg, transparent 35%, rgba(10, 10, 9, 0.55));
}

.case-study__tag {
  position: absolute;
  z-index: 1;
  top: 14px;
  left: 14px;
  padding: 5px 9px;
  background: rgba(10, 10, 9, 0.7);
  border: 1px solid var(--line-2);
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-dim);
}

.case-study__index {
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.case-study h2 { font-size: clamp(28px, 2.9vw, 42px); margin-bottom: 10px; }

.case-study__sub {
  color: var(--faint);
  font-size: 13px;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.case-study__body p { color: var(--muted); font-size: 15px; line-height: 1.8; }

.case-study__body p + p { margin-top: 14px; }

.case-study__config {
  margin-top: 24px;
  border-top: 1px solid var(--line-2);
}

.case-study__config li {
  display: flex;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--bone-dim);
}

.case-study__config li span {
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 4px;
  flex: none;
}

.case-study__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line-2);
}

.case-study__metric strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 34px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--gold);
  line-height: 1.05;
}

.case-study__metric span { display: block; margin-top: 4px; font-size: 10px; color: var(--faint); line-height: 1.4; }

.method-note {
  border: 1px solid var(--line);
  padding: 22px 24px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--faint);
  max-width: 780px;
}

.method-note strong { color: var(--bone-dim); font-weight: 600; }

/* --------------------------------------------------------------------------
   Contact page
   -------------------------------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.inquiry-panel {
  background: var(--bone);
  color: var(--ink);
  padding: clamp(28px, 3.5vw, 44px);
  position: relative;
}

.inquiry-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 3px;
  background: var(--gold-deep);
}

.inquiry-panel h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.2vw, 32px);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

html[lang="zh-CN"] .inquiry-panel h2 { font-family: var(--font-cn); font-weight: 800; }

.inquiry-panel__sub {
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(20, 19, 15, 0.6);
  margin-bottom: 26px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 16px;
}

.field { display: flex; flex-direction: column; gap: 6px; }

.field--full { grid-column: 1 / -1; }

.field label {
  font-family: var(--font-display);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(20, 19, 15, 0.55);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid rgba(20, 19, 15, 0.18);
  background: rgba(255, 255, 255, 0.4);
  color: var(--ink);
  border-radius: 0;
  font-size: 14px;
  transition: border-color 0.2s, background 0.2s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--gold-deep);
  background: rgba(255, 255, 255, 0.75);
}

.field textarea { min-height: 104px; resize: vertical; }

.field--full .btn { width: 100%; margin-top: 4px; }

.inquiry-panel .btn--dark { background: var(--ink); color: var(--bone); }

.inquiry-panel .btn--dark:hover { background: #000; }

.form-note {
  grid-column: 1 / -1;
  font-size: 11px;
  line-height: 1.6;
  color: rgba(20, 19, 15, 0.5);
}

.form-status {
  grid-column: 1 / -1;
  display: none;
  padding: 10px 12px;
  border: 1px solid rgba(20, 19, 15, 0.2);
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink);
}

.form-status.is-visible { display: block; }

.contact-cards { display: flex; flex-direction: column; border-top: 1px solid var(--line-2); }

.contact-card {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.contact-card__icon { width: 22px; height: 22px; color: var(--gold); margin-top: 4px; }

.contact-card__label {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

.contact-card a, .contact-card p {
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.45;
  color: var(--bone);
  word-break: break-word;
}

.contact-card a:hover { color: var(--gold); }

.contact-card small { display: block; margin-top: 5px; font-size: 11.5px; color: var(--faint); line-height: 1.5; }

.contact-aside {
  margin-top: 26px;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.contact-aside strong {
  display: block;
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}

.contact-aside p { font-size: 12.5px; line-height: 1.65; color: var(--muted); }

.checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 28px;
}

.checklist li {
  background: var(--bg);
  padding: 16px 18px;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--bone-dim);
}

.checklist li span {
  font-family: var(--font-display);
  font-size: 8.5px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 3px;
}

.faq { border-top: 1px solid var(--line-2); }

.faq details { border-bottom: 1px solid var(--line); }

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

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

.faq summary::after {
  content: "+";
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 300;
  color: var(--gold);
  transition: transform 0.3s var(--ease);
}

.faq details[open] summary::after { transform: rotate(45deg); }

.faq details p {
  padding: 0 0 22px;
  max-width: 72ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   Reveal animation
   -------------------------------------------------------------------------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--delay, 0ms);
}

.js [data-reveal].is-visible { opacity: 1; transform: none; }

.js [data-reveal-group] > * {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.js [data-reveal-group].is-visible > * { opacity: 1; transform: none; }

.js [data-reveal-group].is-visible > *:nth-child(2) { transition-delay: 80ms; }
.js [data-reveal-group].is-visible > *:nth-child(3) { transition-delay: 160ms; }
.js [data-reveal-group].is-visible > *:nth-child(4) { transition-delay: 240ms; }
.js [data-reveal-group].is-visible > *:nth-child(5) { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js [data-reveal], .js [data-reveal-group] > * { opacity: 1; transform: none; }
  .ticker__track { animation: none; }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1180px) {
  .main-nav { gap: 0; }
  .nav-link { padding: 10px 9px; font-size: 11.5px; }
  .header-actions { gap: 12px; }
  .header-cta { padding: 0 14px; }
  .hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.95fr); gap: 40px; }
}

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .sys-panel { width: 100%; max-width: 560px; margin-left: auto; }
  .hero-title { max-width: 16ch; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-stat:nth-child(2n) { border-right: 0; }
  .hero-stat { padding: 22px 20px 24px 0; }
  .position-grid,
  .data-grid,
  .process-grid,
  .manifest,
  .about-teaser,
  .contact-grid,
  .cta-grid,
  .page-hero__grid { grid-template-columns: 1fr; }
  .position-lead,
  .data-copy,
  .process-copy { position: static; }
  .page-hero__side { border-left: 0; border-top: 1px solid var(--line); padding: 18px 0 0; }
  .solutions-grid { gap: 16px; }
  .solution-card { grid-column: span 6; }
  .solution-card--wide { grid-column: span 12; }
  .case-grid { grid-template-columns: minmax(0, 1fr); }
  .case-card { display: grid; grid-template-columns: 1fr 1fr; }
  .case-card__media { aspect-ratio: auto; height: 100%; min-height: 240px; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col:last-child { grid-column: 1 / -1; }
  .solution-detail { grid-template-columns: 1fr; }
  .solution-detail__visual { position: static; max-width: 640px; }
  .case-study { grid-template-columns: 1fr; }
  .case-study__visual { position: static; }
  .case-study__media img { aspect-ratio: 16 / 9; }
  .included-grid { grid-template-columns: 1fr 1fr; }
  .results-bar { grid-template-columns: repeat(2, 1fr); }
  .results-bar__item:nth-child(2n) { border-right: 0; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .value-item:nth-child(2n) { border-right: 0; }
  .value-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 860px) {
  :root { --header-h: 68px; }
  .section { padding: 64px 0; }
  .wide-figure img { aspect-ratio: 4 / 3; }
  .manifest__sig { display: none; }
  .solutions-index a:last-child { grid-column: 1 / -1; border-right: 0; }
  .section--tight { padding: 46px 0; }
  .rights-strip { margin-top: 40px; }
  .main-nav { display: none; }
  .menu-toggle { display: block; }
  .header-cta { display: none; }
  .brand__mark { width: 30px; height: 30px; }
  .brand__name { font-size: 17px; }
  .hero { padding-top: calc(var(--header-h) + 40px); }
  .section-head { grid-template-columns: 1fr; }
  .rights-strip { grid-template-columns: 1fr 1fr; }
  .rights-strip__item:nth-child(2n) { border-right: 0; }
  .rights-strip__item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .solutions-index { grid-template-columns: 1fr 1fr; }
  .solutions-index a { border-bottom: 1px solid var(--line); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col:last-child { grid-column: auto; }
  .data-row { grid-template-columns: 1fr; gap: 10px; }
  .case-card { display: flex; }
  .case-card__media { aspect-ratio: 4 / 3; min-height: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .checklist { grid-template-columns: 1fr; }
  .two-col-copy { grid-template-columns: 1fr; }
  .cta-band::before { font-size: 60vw; opacity: 0.6; }
}

@media (max-width: 620px) {
  :root { --gutter: 20px; }
  body { font-size: 15px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stat__value { font-size: 32px; }
  .solution-card { grid-column: span 12; }
  .solutions-grid { gap: 14px; }
  .case-metrics { flex-wrap: wrap; gap: 14px 22px; }
  .included-grid { grid-template-columns: 1fr; }
  .results-bar { grid-template-columns: 1fr 1fr; }
  .results-bar__item { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 20px 14px 22px 0; }
  .results-bar__item:nth-child(2n) { border-right: 0; }
  .results-bar__item:nth-last-child(-n+2) { border-bottom: 0; }
  .values-grid { grid-template-columns: 1fr; }
  .value-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .value-item:last-child { border-bottom: 0; }
  .hero__signature { flex-wrap: wrap; gap: 10px 14px; }
  .eyebrow { align-items: flex-start; }
  .eyebrow__line { margin-top: 6px; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-col:last-child { grid-column: auto; }
  .footer-brand { grid-column: auto; }
  .case-study__metrics { grid-template-columns: 1fr 1fr; }
  .cta-actions { align-items: stretch; }
  .cta-actions .btn { width: 100%; }
  .page-hero::after { display: none; }
  .btn { min-height: 50px; padding: 0 20px; font-size: 12px; }
  .facts-row { flex-wrap: wrap; gap: 20px 32px; }
}

/* Hidden inline SVG symbol library */
.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}


/* Static capture mode (?static=1) */
.static [data-reveal],
.static [data-reveal-group] > * {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}
.static .ticker__track { animation: none !important; }




/* Principles */
.principle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.principle {
  background: var(--bg);
  padding: 26px 26px 30px;
}

.principle__num {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.principle h3 { font-size: 20px; margin: 12px 0 8px; }

.principle p { color: var(--muted); font-size: 13.5px; line-height: 1.68; max-width: 46ch; }

.solution-detail__plate--wide img { aspect-ratio: 16 / 6.6; }

@media (max-width: 860px) {
  .principle-grid { grid-template-columns: 1fr; }
}





/* Tablet header: collapse navigation before it crowds the CTA */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .menu-toggle { display: block; }
  .header-cta { display: none; }
}


/* Process proof facts */
.process-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 26px 40px;
  margin-top: 24px;
  max-width: 440px;
}

.process-fact strong {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--bone);
}

.process-fact strong em {
  font-style: normal;
  margin-left: 5px;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.process-fact span {
  display: block;
  margin-top: 7px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--faint);
}




/* Inquiry form: attachment, honeypot and result states */
.hp-field {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.field input[type="file"] {
  padding: 9px 12px;
  font-size: 12px;
  color: rgba(20, 19, 15, 0.65);
  background: rgba(255, 255, 255, 0.4);
  border: 1px dashed rgba(20, 19, 15, 0.3);
  cursor: pointer;
}

.field input[type="file"]::file-selector-button {
  margin-right: 12px;
  padding: 6px 10px;
  border: 1px solid rgba(20, 19, 15, 0.3);
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}

.file-hint {
  font-size: 10.5px;
  line-height: 1.5;
  color: rgba(20, 19, 15, 0.5);
}

.form-status.is-ok {
  border-color: rgba(37, 92, 52, 0.35);
  background: rgba(37, 92, 52, 0.07);
}

.form-status.is-error {
  border-color: rgba(140, 45, 32, 0.35);
  background: rgba(140, 45, 32, 0.06);
}

/* Desktop contact: align the side note with the bottom of the taller form */
@media (min-width: 1025px) {
  .contact-grid { align-items: stretch; }
  .contact-grid > aside { display: flex; flex-direction: column; }
  .contact-grid > aside .contact-aside { margin-top: auto; }
}

/* Centered stat / rights rows */
.hero-stat {
  text-align: center;
  padding-left: 16px;
  padding-right: 16px;
}

.hero-stat__value { justify-content: center; }

.rights-strip__item {
  align-items: center;
  text-align: center;
  padding-left: 16px;
  padding-right: 16px;
}

.results-bar__item {
  text-align: center;
  padding-left: 16px;
  padding-right: 16px;
}

/* Center the solutions index and the four-module grid */
.solutions-index a {
  align-items: center;
  text-align: center;
  padding-left: 12px;
  padding-right: 12px;
}

.value-item {
  text-align: center;
  padding-left: 18px;
  padding-right: 18px;
}

.value-item p {
  max-width: 34ch;
  margin-left: auto;
  margin-right: auto;
}