:root {
  --bg: #101114;
  --surface: #1b1e24;
  --text: #f7f7f5;
  --muted: #c5cad3;
  --line: #343840;
  --accent: #e4c576;
  --signal: #b4531a;
  --signal-text: #ffffff;
  --display: "DengXian Light", "DengXian", "Segoe UI", sans-serif;
  --body: "DengXian", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(900px 420px at 100% -10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { max-width: 100%; }
a { color: inherit; }
::selection { background: var(--accent); color: #14120c; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #14120c;
  padding: 0.7rem 1rem;
  z-index: 5;
}
.skip:focus { left: 1rem; top: 1rem; }
.kicker, .idx {
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 600;
}
h1, h2, h3 { font-family: var(--display); font-weight: 300; letter-spacing: -0.03em; text-wrap: balance; }
h1 { font-size: clamp(4.8rem, 9vw, 8rem); line-height: 0.86; margin: 0; padding-bottom: 0.14em; overflow-wrap: break-word; }
.hero-page h1 { font-size: clamp(2.35rem, 4.2vw, 4rem); line-height: 0.98; }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); line-height: 1.05; margin: 0 0 1.25rem; }
h3 { font-size: 1.45rem; line-height: 1.2; margin: 0 0 0.45rem; }
p { margin: 0; }
.rule { width: 4.5rem; height: 0.22rem; background: var(--accent); margin: 1.15rem 0 1.15rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.15rem;
  text-decoration: none;
  border: 1px solid var(--line);
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn-signal { background: var(--signal); color: var(--signal-text); border-color: var(--signal); }
.btn-ghost { background: transparent; }
.btn:hover { transform: translateY(-1px); }
.unknown { border-bottom: 1px dashed var(--accent); }
.source { display: block; margin-top: 0.45rem; color: var(--muted); font-size: 0.75rem; letter-spacing: 0.01em; }
.direct, .block { padding: 2rem 0; border-top: 1px solid var(--line); }
.direct p { max-width: 42rem; font-size: 1.2rem; line-height: 1.55; }
.rows { list-style: none; margin: 0; padding: 0; }
.rows li {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 1.1rem;
  padding: 1.05rem 0;
  border-top: 1px solid var(--line);
}
.rows li:last-child { border-bottom: 1px solid var(--line); }
.fact-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.9rem; }
.fact-strip article, .panel {
  background: var(--surface);
  padding: 1.25rem 1.15rem 1.35rem;
  border: 1px solid var(--line);
  min-width: 0;
}
.fact-strip h3 { font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 600; }
.closer {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
  margin: 0 0 3.5rem;
  padding: 2rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 0.35rem solid var(--signal);
}
.closer h2 { margin-bottom: 0.6rem; }
.closer p { max-width: 36rem; color: var(--muted); }
.site-footer {
  padding: 1.5rem 0 3rem;
  color: var(--muted);
  display: grid;
  gap: 0.35rem;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}
/* The primary navigation is always in the document and, by default, visible at every width. The
   section control and the collapse only appear once the document is marked script-enabled, so a
   scriptless narrow viewport keeps a working menu rather than a control that cannot open. */
.nav-fold { display: contents; }
.nav-toggle {
  display: none;
  cursor: pointer;
  min-height: 44px;
  align-items: center;
  padding: 0 0.9rem;
  border: 1px solid var(--line);
  background: var(--bg);
  color: inherit;
  font: inherit;
}
form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1rem;
  max-width: 46rem;
  margin-top: 1.4rem;
  padding: 1.35rem;
  background: var(--surface);
  border: 1px solid var(--line);
}
.field { display: grid; gap: 0.35rem; min-width: 0; }
.field-wide { grid-column: 1 / -1; }
label { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
input, textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.75rem 0.8rem;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
textarea { min-height: 9rem; resize: vertical; }
button { font: inherit; cursor: pointer; }
#enquiry-result { min-height: 1.5rem; color: var(--accent); }
.hero-plate { margin: 0; min-width: 0; }
.hero-mark { color: var(--text); width: 100%; height: auto; display: block; }
.hero-mark .plate { fill: var(--surface); stroke: var(--line); }
.hero-mark .ink { fill: none; stroke: currentColor; }
.hero-mark .hair { fill: none; stroke: var(--muted); }
.hero-mark .accent { fill: none; stroke: var(--accent); }
.hero-mark .accent-fill { fill: var(--accent); }
.hero-mark .notch { fill: var(--signal); }
.hero-mark .field { fill: color-mix(in srgb, var(--text) 16%, var(--surface)); stroke: none; }
.hero-mark .field-strong { fill: color-mix(in srgb, var(--accent) 46%, var(--surface)); stroke: none; }
#faq-list details { border-top: 1px solid var(--line); padding: 0.35rem 0; }
#faq-list details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-size: 1.12rem; min-height: 44px; display: flex; align-items: center; }
details p { padding: 0.15rem 0 0.9rem; max-width: 42rem; }
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}
@media (max-width: 1024px) {
  .fact-strip { grid-template-columns: 1fr 1fr; }
  .direct, .block { padding: 1.7rem 0; }
}
@media (max-width: 720px) {
  .fact-strip, form { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .closer { flex-direction: column; align-items: stretch; padding: 1.2rem; }
  .closer .btn, .hero-actions, .hero-actions a { width: 100%; }
  h1 { font-size: clamp(3.2rem, 16vw, 4.05rem); }
  .rows li { grid-template-columns: 1fr; gap: 0.35rem; }
  .direct, .block { padding: 1.15rem 0; }
  .campaign { display: flex; flex-direction: column; align-items: stretch; gap: 0.35rem; padding-top: 1rem; }
  .campaign .hero-copy { order: 1; }
  .campaign .direct { order: 2; }
  .campaign .hero-plate { order: 3; }
  .campaign .direct { padding: 0.85rem 0 0.35rem; }
  .hero-page .hero-plate { display: none; }
  .hero-page { padding-top: 0.85rem; padding-bottom: 0.2rem; }
}

h1 { font-size: clamp(4.2rem, 7.6vw, 7rem); }
.topbar {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.8rem 2rem;
  background: color-mix(in srgb, var(--bg) 94%, var(--surface));
  border-bottom: 1px solid var(--line);
}
.topbar-id { display: flex; align-items: baseline; gap: 0.8rem; margin-right: auto; min-width: 0; }
.mark { margin: 0; font-size: 0.78rem; letter-spacing: 0.22em; color: var(--accent); }
.brand-name { margin: 0; font-family: var(--display); font-size: 1.35rem; font-weight: 300; letter-spacing: -0.02em; }
.topbar nav { display: flex; flex-wrap: wrap; gap: 0.15rem; }
.topbar nav a {
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.8rem;
  color: var(--muted);
}
.topbar nav a:hover { color: var(--text); }
.topbar nav a[aria-current="page"] { color: var(--text); box-shadow: inset 0 -2px 0 var(--accent); }
.btn-gold { background: var(--accent); color: #14120c; border-color: var(--accent); font-weight: 600; border-radius: 6px; }
.sheet { width: min(1200px, calc(100% - 4rem)); margin: 0 auto; }
.campaign-os {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  column-gap: 3rem;
  align-items: center;
  padding: 3rem 0 0.5rem;
}
.campaign-os .direct { grid-column: 1 / -1; }
.hero-os {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr);
  gap: 3rem;
  align-items: center;
  padding: 2.6rem 0 1rem;
}
.hero-copy { max-width: 42rem; }
.deck { max-width: 38rem; font-size: 1.35rem; line-height: 1.45; }
.audience { margin-top: 0.9rem; color: var(--muted); max-width: 36rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.8rem; }
.hero-actions .btn, .header-cta { border-radius: 6px; }
.visual-slot { position: relative; }
.os-mark .glow { fill: color-mix(in srgb, var(--accent) 12%, transparent); }
.os-mark .trace { fill: none; stroke: color-mix(in srgb, var(--accent) 55%, var(--line)); }
.os-mark .node { fill: var(--surface); stroke: var(--line); }
.os-mark .chip-top { fill: color-mix(in srgb, var(--accent) 22%, var(--surface)); stroke: var(--accent); stroke-width: 1.5; }
.os-mark .chip-side { fill: color-mix(in srgb, var(--accent) 34%, var(--bg)); }
.os-mark .chip-side-dark { fill: color-mix(in srgb, var(--accent) 16%, var(--bg)); }
.os-mark .chip-core { fill: var(--accent); }
.hero-page .hero-mark { max-height: 16rem; width: auto; max-width: 100%; }
.brief-bar {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr);
  align-items: center;
  gap: 1.5rem;
  margin: 1.4rem 0;
  padding: 1.3rem 1.6rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 0.3rem solid var(--accent);
  border-radius: 10px;
}
.brief-bar h2 { margin: 0; font-family: var(--body); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }
.brief-bar .source { grid-column: 2; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1rem; }
.cards li {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.3rem 1.2rem 1.4rem;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 7%, var(--surface)), var(--surface));
  border: 1px solid var(--line);
  border-radius: 12px;
}
.cards li:last-child { border-bottom: 1px solid var(--line); }
.cards h3 { font-size: 1.3rem; }
.cards p { color: var(--muted); }
.site-footer { margin-top: 1rem; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr)); gap: 0.75rem; }
.steps li { display: grid; gap: 0.4rem; padding: 1rem; background: var(--surface); border: 1px solid var(--line); border-top: 0.2rem solid var(--accent); border-radius: 10px; }
.card-link { display: inline-flex; align-items: center; min-height: 44px; margin-top: 0.35rem; color: var(--accent); text-underline-offset: 0.2em; }
.back-link { padding: 1.4rem 0 0.6rem; }
.back-link a { display: inline-flex; align-items: center; min-height: 44px; color: var(--accent); }
.hero-os + .brief-bar, .hero-page + .direct { margin-top: 0.5rem; }
.visual-slot img { display: block; width: 100%; height: auto; border-radius: 16px; }
.avatar-block { display: none; margin: 0; }
.dept-art { display: none; margin: 0; }
.campaign-os .kicker, .hero-os .kicker { display: inline-flex; align-items: center; gap: 0.55rem; padding: 0.4rem 0.85rem; border: 1px solid var(--line); border-radius: 999px; background: color-mix(in srgb, var(--surface) 70%, transparent); }
.campaign-os .kicker::before, .hero-os .kicker::before { content: ""; width: 0.45rem; height: 0.45rem; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.campaign-os .rule, .hero-os .rule { display: none; }
.campaign-os h1 { font-size: clamp(2.4rem, 3.7vw, 3.75rem); line-height: 1.04; margin-top: 1.1rem; letter-spacing: -0.035em; }
/* The approved brand slogan is the main home headline at every viewport. */
.campaign-os .kicker[data-fact-id="brand-slogan"] {
  display: block; padding: 0; border: 0; border-radius: 0; background: transparent;
  font-family: var(--display); font-size: clamp(2.5rem, 3.2vw, 2.9rem);
  font-weight: 300; line-height: 1.22; letter-spacing: 0; margin-top: 0;
}
.campaign-os .kicker[data-fact-id="brand-slogan"]::before { display: none; }
.campaign-os .kicker[data-fact-id="brand-slogan"] > .tone:nth-child(odd) { display: block; white-space: nowrap; }
.campaign-os .kicker[data-fact-id="brand-slogan"] > .tone:nth-child(even) { display: none; }
.campaign-os .hero-positioning { font-family: var(--display); font-size: 1.6rem; line-height: 1.35; margin-top: 1.3rem; letter-spacing: -0.015em; }
.hero-os.hero-page h1 { margin-top: 1rem; }
.tone { color: var(--accent); }
.campaign-os .audience { font-size: 1.12rem; margin-top: 1.1rem; }
.card-icon { display: inline-flex; width: 2.6rem; height: 2.6rem; align-items: center; justify-content: center; border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 10px; background: color-mix(in srgb, var(--bg) 80%, transparent); margin-bottom: 0.35rem; }
.card-icon svg { width: 1.35rem; height: 1.35rem; fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.brand-logo { display: inline-flex; align-items: center; min-height: 44px; }
.logo-crop { display: block; width: 13.75rem; height: auto; overflow: visible; }
.logo-crop img { display: block; width: 100%; height: auto; margin-top: 0; mix-blend-mode: lighten; }
.footer-logo { position: relative; width: min(26rem, 100%); aspect-ratio: 3169 / 805; margin: 2.4rem 0 0.4rem; }
.footer-logo img { position: absolute; inset: 0; width: 100%; height: 100%; mix-blend-mode: lighten; }
.fl-letters { clip-path: inset(0 0 38% 0); }
.fl-line { clip-path: inset(62% 0 0 0); }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.dept-art img { display: block; width: 100%; height: auto; border-radius: 16px; border: 1px solid var(--line); }
.avatar-block img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; object-position: center 22%; border-radius: 16px; border: 1px solid var(--line); }
/* Review R7.2: on the home hero the artwork blends into the page rather than sitting in a framed box. */
.campaign-os .visual-slot { margin-right: -3rem; }
.campaign-os .visual-slot img { border-radius: 0; transform: scale(1.08); mix-blend-mode: lighten; -webkit-mask-image: radial-gradient(ellipse 72% 70% at 50% 50%, #000 58%, transparent 100%); mask-image: radial-gradient(ellipse 72% 70% at 50% 50%, #000 58%, transparent 100%); }
.sheet > .block > h2 { font-size: clamp(2.2rem, 3.4vw, 3.2rem); margin-bottom: 1.6rem; }
.sheet > .block > h2::after { content: ""; display: block; width: 3.5rem; height: 0.2rem; margin-top: 0.8rem; background: var(--accent); }
.hero-actions .btn-signal, .closer .btn-signal { background: var(--accent); color: #14120c; border-color: var(--accent); font-weight: 600; }
.hero-os.hero-page h1 { font-size: clamp(2.1rem, 3.1vw, 3.15rem); line-height: 1.04; }
.cards li {
  padding-bottom: 5.5rem;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 96%, transparent) 0%, color-mix(in srgb, var(--surface) 90%, transparent) 45%, color-mix(in srgb, var(--bg) 30%, transparent) 100%),
    url("card-background-v1.webp") 0% 100% / 260% auto no-repeat,
    var(--bg);
}
.cards li:nth-child(4n + 2) { background-position: 0 0, 33% 100%, 0 0; }
.cards li:nth-child(4n + 3) { background-position: 0 0, 66% 100%, 0 0; }
.cards li:nth-child(4n + 4) { background-position: 0 0, 100% 100%, 0 0; }
@media (max-width: 1024px) {
  .topbar {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: 0.8rem;
    padding: 0.85rem 1.2rem;
  }
  .header-cta { display: none; }
  .topbar nav { flex-direction: column; align-items: flex-start; grid-column: 1 / -1; grid-row: 2; width: 100%; }
  :root[data-js="on"] .topbar .nav-toggle { display: inline-flex; grid-column: 2; grid-row: 1; justify-self: end; }
  :root[data-js="on"] .topbar .nav-fold[data-nav-open="false"] nav { display: none; }
  .sheet { width: min(1200px, calc(100% - 2.4rem)); }
  .campaign-os { grid-template-columns: 1fr; padding-top: 1.6rem; }
  .campaign-os .visual-slot { margin-right: 0; }
  .campaign-os .visual-slot img { transform: none; }
  .hero-os, .hero-page { grid-template-columns: 1fr; padding: 1.3rem 0 1rem; gap: 1.1rem; }
  .os-mark { max-width: 34rem; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .closer { flex-direction: column; align-items: stretch; }
  .closer .btn { width: 100%; }
}
@media (max-width: 720px) {
  .topbar { padding: 0.85rem 1rem; }
  .sheet { width: calc(100% - 2rem); }
  .hero-page { padding: 0.85rem 0 0.2rem; }
  .deck { font-size: 1.12rem; }
  .brief-bar, .campaign .brief-bar { grid-template-columns: 1fr; gap: 0.5rem; padding: 1.1rem; }
  /* Review R6.3: a tighter phone opening, so the proposition, action and In brief sit closer together. */
  .campaign-os .rule { margin: 0.7rem 0; }
  .campaign-os .audience { margin-top: 0.6rem; font-size: 0.98rem; }
  .campaign-os .hero-actions { margin-top: 1.1rem; }
  .campaign .brief-bar p { font-size: 1.05rem; line-height: 1.5; }
  /* Owner, 2026-10-06: the brand slogan leads the mobile opening, in three complete phrases. */
  .campaign-os .kicker[data-fact-id="brand-slogan"] {
    display: block;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    font-family: var(--display);
    font-size: clamp(1.35rem, 7.7vw, 1.9rem);
    font-weight: 300;
    line-height: 1.28;
    letter-spacing: 0.01em;
  }
  .campaign-os .kicker[data-fact-id="brand-slogan"]::before { display: none; }
  .campaign-os .kicker[data-fact-id="brand-slogan"] > .tone:nth-child(odd) { display: block; white-space: nowrap; }
  .campaign-os .kicker[data-fact-id="brand-slogan"] > .tone:nth-child(even) { display: none; }
  .campaign-os h1 { font-size: clamp(2rem, 8.6vw, 2.6rem); }
  .campaign-os .hero-positioning { font-size: 1.35rem; line-height: 1.35; margin-top: 1rem; }
  .brief-bar .source { grid-column: auto; }
  .cards { grid-template-columns: 1fr; }
  .campaign-os .visual-slot:has(img) { display: none; }
  .campaign-os .visual-slot { margin-right: 0; }
  .campaign .avatar-block { display: block; order: 3; margin-top: 0.8rem; }
  .dept-art { display: block; margin: 0.4rem 0 0.8rem; }
}
/* Original AI SMITH artwork and editorial hierarchy. No borrowed tilted frames or portraits. */
.sheet > .block { padding: 5rem 0; border-top: 0; }
.sheet > .block > h2 { font-size: clamp(3rem, 5.8vw, 5.4rem); line-height: 1; margin-bottom: 3rem; }
.sheet > .block > h2::after { width: 4.5rem; margin-top: 1.2rem; }
.department-showcase .cards { display: block; }
.department-showcase .cards li {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 4rem; align-items: center; padding: 4rem 0; min-height: 32rem;
  background: transparent; border: 0; border-top: 1px solid var(--line); border-radius: 0;
}
.department-showcase .cards li:last-child { border-bottom: 0; }
.department-showcase .idx { position: absolute; top: 1.5rem; left: 0; font-size: 1rem; }
.department-showcase .cards li:nth-child(even) > div { grid-column: 2; grid-row: 1; }
.department-showcase .cards li:nth-child(even) .department-art { grid-column: 1; grid-row: 1; }
.department-showcase h3 { font-size: 1rem; letter-spacing: 0.04em; line-height: 1.45; }
.department-showcase h3 .tone { display: block; font-size: clamp(2.25rem, 3.5vw, 3.2rem); line-height: 1.08; letter-spacing: -0.03em; margin-top: 0.8rem; }
.department-showcase p { font-size: 1.18rem; line-height: 1.6; margin-top: 1.3rem; max-width: 32rem; }
.department-showcase .card-link { text-decoration: none; border-bottom: 1px solid var(--accent); padding: 0.4rem 0; margin-top: 1.5rem; }
.department-art { margin: 0; position: relative; min-width: 0; }
.department-art img { display: block; width: 100%; height: auto; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 0; mix-blend-mode: lighten; }
.sheet > [aria-labelledby="services-heading"] {
  position: relative; padding: 5rem 2rem; margin: 0 -2rem;
  background: radial-gradient(ellipse at 0% 0%, #343c49, #1c222b 65%);
}
[aria-labelledby="services-heading"] .cards { gap: 1.5rem; }
[aria-labelledby="services-heading"] .cards li { padding: 2rem 1.5rem 6rem; min-height: 23rem; border-radius: 0; border-color: #4a515d; }
[aria-labelledby="services-heading"] .cards h3 { font-size: 1.65rem; margin-top: 0.5rem; }
[aria-labelledby="services-heading"] .card-icon { border: 0; background: transparent; width: 3rem; height: 3rem; }
[aria-labelledby="services-heading"] .card-icon svg { width: 2.2rem; height: 2.2rem; }
[aria-labelledby="method-heading"] .cards { display: block; }
[aria-labelledby="method-heading"] .cards li {
  display: grid; grid-template-columns: 6rem minmax(0, 1fr); padding: 2.2rem 0;
  border: 0; border-top: 1px solid var(--line); border-radius: 0; background: transparent;
}
[aria-labelledby="method-heading"] .idx { font-family: var(--display); font-weight: 300; font-size: 3.5rem; line-height: 1; letter-spacing: -0.03em; }
[aria-labelledby="method-heading"] h3 { font-size: 2rem; }
[aria-labelledby="method-heading"] p { max-width: 48rem; font-size: 1.12rem; }
#faq-list { max-width: 62rem; margin: 0 auto; }
#faq-list details { padding: 1rem 0; }
#faq-list summary { position: relative; font-size: 1.35rem; line-height: 1.4; padding: 0.3rem 2.5rem 0.3rem 0; }
#faq-list summary::after { content: "+"; position: absolute; right: 0.5rem; font-size: 2rem; color: var(--accent); font-weight: 300; }
#faq-list details[open] summary::after { content: "−"; }
#faq-list details p { color: var(--muted); padding-top: 0.8rem; font-size: 1.1rem; }
.hero-os.hero-page { padding: 5rem 0 3rem; gap: 4rem; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); min-height: 35rem; }
.hero-os.hero-page h1 { font-size: clamp(4.4rem, 7.6vw, 7rem); line-height: 1; margin-top: 1.8rem; }
.hero-os.hero-page h1[data-fact-id] { font-size: 1.1rem; letter-spacing: 0.04em; line-height: 1.4; }
.hero-os.hero-page h1[data-fact-id] .tone { display: block; font-size: clamp(2.8rem, 4.6vw, 4.4rem); line-height: 1.05; letter-spacing: -0.035em; margin-top: 1rem; }
.hero-os.hero-page .deck { margin-top: 1.5rem; font-size: 1.25rem; line-height: 1.5; }
.hero-page .visual-slot { isolation: isolate; }
.hero-page .visual-slot img { border-radius: 0; mix-blend-mode: lighten; }
.hero-page .hero-mark { max-height: 28rem; width: 100%; }
.hero-os + .brief-bar { margin: 0 0 3rem; }
.sheet > .closer {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center;
  padding: 4rem 2.5rem; margin: 3rem 0; border: 0; border-top: 2px solid var(--accent);
  background: radial-gradient(ellipse at 100% 0%, #343b47, #1b2028 70%);
}
.closer h2 { font-size: clamp(2.8rem, 5vw, 4.8rem); line-height: 1.05; margin-top: 0.8rem; }
.closer p { font-size: 1.08rem; }
.sheet > #enquiry-panel { padding-top: 2rem; }
#enquiry-panel form { max-width: none; padding: 2.5rem; gap: 1.5rem; background: #1e242d; }
#enquiry-panel input, #enquiry-panel textarea { background: #14181f; border-color: #515a67; }
#enquiry-panel label { color: var(--text); }
.footer-logo { width: min(38rem, 100%); margin-top: 4rem; }
.site-footer { padding: 2rem 0 3rem; }
@media (max-width: 1024px) {
  .sheet > .block { padding: 3.5rem 0; }
  .sheet > .block > h2 { font-size: 3.8rem; margin-bottom: 2.5rem; }
  .department-showcase .cards li { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem; min-height: 0; }
  .department-showcase h3 .tone { font-size: 2.2rem; }
  .department-showcase p { font-size: 1.05rem; }
  .sheet > [aria-labelledby="services-heading"] { margin: 0 -1.2rem; padding: 3.5rem 1.2rem; }
  .hero-os.hero-page { grid-template-columns: 1fr; min-height: 0; gap: 2.5rem; padding: 3rem 0 2rem; }
  .hero-os.hero-page .hero-copy { max-width: none; }
  .hero-page .visual-slot { width: min(40rem, calc(100% - 2rem)); justify-self: center; }
  .sheet > .closer { grid-template-columns: 1fr; gap: 2rem; padding: 3rem 2rem; }
}
@media (max-width: 720px) {
  .sheet > .block { padding: 3rem 0; }
  .sheet > .block > h2 { font-size: clamp(2.3rem, 10vw, 3.2rem); margin-bottom: 2rem; }
  .department-showcase .cards li { display: flex; flex-direction: column; align-items: stretch; gap: 2.5rem; padding: 3.5rem 0 2.5rem; }
  .department-showcase .idx { top: 1rem; }
  .department-showcase h3 .tone { font-size: clamp(2rem, 8.5vw, 2.8rem); }
  .department-showcase p { font-size: 1.05rem; margin-top: 1rem; }
  .department-art { margin: 0.5rem 0.5rem 0; }
  .sheet > [aria-labelledby="services-heading"] { margin: 0 -1rem; padding: 3rem 1rem; }
  [aria-labelledby="services-heading"] .cards li { min-height: 20rem; padding: 1.8rem 1.4rem 5rem; }
  [aria-labelledby="method-heading"] .cards li { grid-template-columns: 3rem minmax(0, 1fr); gap: 1rem; padding: 1.8rem 0; }
  [aria-labelledby="method-heading"] .idx { font-size: 2.5rem; }
  [aria-labelledby="method-heading"] h3 { font-size: 1.6rem; }
  [aria-labelledby="method-heading"] p { font-size: 1rem; }
  #faq-list summary { font-size: 1.15rem; }
  .hero-os.hero-page { padding: 2.2rem 0 1.5rem; }
  .hero-os.hero-page h1 { font-size: clamp(3.8rem, 16vw, 5rem); }
  .hero-os.hero-page h1[data-fact-id] { font-size: 0.98rem; }
  .hero-os.hero-page h1[data-fact-id] .tone { font-size: clamp(2.4rem, 10vw, 3rem); }
  .hero-os.hero-page .deck { font-size: 1.12rem; }
  .dept-art { margin: 2rem 0 1rem; }
  .dept-art img { border-radius: 0; mix-blend-mode: lighten; }
  .sheet > .closer { padding: 2.5rem 1.4rem; margin: 2rem 0; }
  .closer h2 { font-size: clamp(2.6rem, 11vw, 3.8rem); }
  #enquiry-panel form { padding: 1.4rem; }
  .footer-logo { margin-top: 3rem; }
}

/* Owner correction, 2026-10-07: scale, space and premium imagery. */
.sheet { width: min(1320px, calc(100% - 6rem)); }
.campaign-os { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); column-gap: 2.5rem; padding: 5rem 0 1rem; }
.campaign-os .kicker[data-fact-id="brand-slogan"] { font-size: clamp(2.6rem, 4.2vw, 4rem); line-height: 1.08; letter-spacing: -0.025em; }
.campaign-os .kicker[data-fact-id="brand-slogan"] > .tone:nth-child(3) { color: var(--text); }
.campaign-os .kicker[data-fact-id="brand-slogan"] > .tone:last-child { font-size: 0.64em; margin-top: 0.8rem; letter-spacing: 0.025em; }
.campaign-os .hero-positioning { font-size: clamp(1.25rem, 1.8vw, 1.65rem); margin-top: 1.8rem; }
.campaign-os .audience { font-size: 1rem; line-height: 1.6; max-width: 34rem; }
.campaign-os .visual-slot { margin: 0; width: 100%; }
.campaign-os .visual-slot img { transform: none; border: 0; aspect-ratio: 3 / 2; object-fit: contain; }
.campaign-os .direct { margin-top: 4rem; }
.brief-bar { background: transparent; border: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); border-radius: 0; padding: 2rem 0; }
.sheet > .block { padding: 5.5rem 0; }
.sheet > .block > h2 { font-size: clamp(2.8rem, 4.8vw, 4.4rem); }
.department-showcase .cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4rem 3rem; }
.department-showcase .cards li { display: flex; flex-direction: column; align-items: stretch; padding: 0; gap: 0; min-height: 0; border: 0; background: none; }
.department-showcase .idx { position: static; font-size: 0.85rem; letter-spacing: 0.1em; margin-top: 1.7rem; color: var(--muted); }
.department-showcase .cards li > div { order: 2; }
.department-showcase .cards li > .idx { order: 1; }
.department-showcase .department-art { order: 0; margin: 0; }
.department-showcase h3 { font-size: 0.85rem; letter-spacing: 0.04em; margin-top: 0.6rem; }
.department-showcase h3 .tone { font-size: clamp(2rem, 2.6vw, 2.5rem); line-height: 1.12; margin-top: 0.55rem; }
.department-showcase p { font-size: 1.06rem; max-width: 35rem; margin-top: 1.1rem; }
.department-art img { mix-blend-mode: normal; border: 0; border-radius: 0; }
.sheet > [aria-labelledby="services-heading"] { padding: 4.5rem 2rem; background: #181b20; }
[aria-labelledby="services-heading"] .cards li { min-height: 16rem; padding: 1.8rem 1.2rem; background: transparent; border: 0; border-left: 1px solid var(--line); }
[aria-labelledby="services-heading"] .cards li:last-child { border-bottom: 0; }
[aria-labelledby="services-heading"] .cards h3 { font-size: 1.4rem; }
.website-feature { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 4rem; align-items: center; }
.website-feature h2 { font-size: clamp(3rem, 4.5vw, 4.4rem); line-height: 1.06; margin: 1rem 0 1.5rem; }
.website-feature p { color: var(--muted); max-width: 32rem; line-height: 1.6; font-size: 1.2rem; }
.eyebrow { text-transform: uppercase; font-size: 0.78rem !important; letter-spacing: 0.18em; color: var(--accent) !important; }
.website-feature-art { margin: 0; }
.website-feature-art img { display: block; width: 100%; height: auto; }
.hero-os.hero-page { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); min-height: 38rem; padding: 5rem 0 4rem; gap: 3rem; }
.hero-page .visual-slot { width: 100%; margin: 0; }
.hero-page .visual-slot img { border: 0; mix-blend-mode: normal; }
.hero-os.hero-page h1[data-fact-id] .tone { font-size: clamp(2.7rem, 4vw, 4rem); line-height: 1.1; }
.hero-os.website-hero h1[data-fact-id] { font-size: clamp(3.3rem, 5vw, 4.8rem); line-height: 1.03; letter-spacing: -0.03em; }
.hero-os.website-hero h1[data-fact-id] .tone { font-size: inherit; margin-top: 0; }
.sheet > .closer { background: #181b20; border-top: 1px solid var(--line); padding: 4.5rem 3rem; }
@media (max-width: 1024px) {
  .sheet { width: min(1320px, calc(100% - 3rem)); }
  .campaign-os { grid-template-columns: 1fr; padding-top: 3rem; gap: 1.5rem; }
  .campaign-os .hero-copy { max-width: 46rem; }
  .campaign-os .visual-slot { width: min(42rem, 100%); margin: 0 auto; }
  .campaign-os .direct { margin-top: 1rem; }
  .department-showcase .cards { gap: 3rem 2rem; }
  .department-showcase h3 .tone { font-size: 2rem; }
  .hero-os.hero-page { grid-template-columns: 1fr; min-height: 0; gap: 2.5rem; padding: 3.5rem 0 2.5rem; }
  .hero-page .visual-slot { width: min(46rem, 100%); justify-self: center; }
  .website-feature { grid-template-columns: 1fr; gap: 2rem; }
  .website-feature-art { width: min(46rem, 100%); justify-self: center; }
  .sheet > .closer { grid-template-columns: 1fr; padding: 3rem 2rem; }
}
@media (max-width: 720px) {
  .sheet { width: calc(100% - 2.5rem); }
  .campaign-os { padding-top: 2rem; }
  .campaign-os .kicker[data-fact-id="brand-slogan"] { font-size: clamp(1.7rem, 8.5vw, 2.8rem); line-height: 1.12; }
  .campaign-os .kicker[data-fact-id="brand-slogan"] > .tone:last-child { font-size: 0.65em; letter-spacing: 0; margin-top: 0.7rem; }
  .campaign-os .hero-positioning { font-size: 1.25rem; line-height: 1.4; margin-top: 1.5rem; }
  .campaign-os .audience { font-size: 0.98rem; }
  .campaign-os .visual-slot:has(img) { display: block; order: 1; }
  .campaign-os .direct { order: 2; margin-top: 0; }
  .sheet > .block { padding: 3.5rem 0; }
  .sheet > .block > h2 { font-size: 2.8rem; }
  .department-showcase .cards { grid-template-columns: 1fr; gap: 3.5rem; }
  .department-showcase .cards li { padding: 0; gap: 0; }
  .department-showcase .idx { margin-top: 1.3rem; }
  .department-showcase h3 .tone { font-size: 2.15rem; }
  .department-showcase .department-art { margin: 0; }
  .sheet > [aria-labelledby="services-heading"] { margin: 0 -1.25rem; padding: 3.5rem 1.25rem; }
  [aria-labelledby="services-heading"] .cards li { min-height: 0; padding: 1.4rem 0 1.4rem 1rem; }
  .hero-os.hero-page { padding: 2.5rem 0 2rem; }
  .dept-art img { border: 0; mix-blend-mode: normal; }
  .hero-os.website-hero h1[data-fact-id] { font-size: clamp(3rem, 12vw, 4rem); }
  .hero-os.website-hero .visual-slot:has(img) { display: block; }
  .website-feature { gap: 2rem; }
  .website-feature h2 { font-size: 3.1rem; }
  .website-feature p { font-size: 1.1rem; }
  .sheet > .closer { padding: 3rem 1.4rem; }
}

#enquiry-mailto[hidden] { display: none; }