:root {
  --ink: #190f2e;
  --ink-soft: #2a1748;
  --pearl: #f8f3e9;
  --paper: #fffdf7;
  --amber: #ffb21c;
  --amber-soft: #ffd77a;
  --lilac: #b9a4e9;
  --line: #190f2e;
  --muted: #6c6477;
  --shadow: 8px 8px 0 var(--ink);
  --max: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--pearl);
  font-family: "Arial Narrow", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

button,
select,
textarea {
  font: inherit;
}

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

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

button {
  color: inherit;
}

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

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--ink);
  background: var(--amber);
  border: 2px solid var(--ink);
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

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

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

.section-shell,
.header-inner {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  color: var(--paper);
  background: rgba(25, 15, 46, 0.96);
  border-bottom: 2px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-mark {
  position: relative;
  display: block;
  width: 38px;
  height: 38px;
  border: 2px solid var(--paper);
}

.brand-mark i {
  position: absolute;
  display: block;
  background: var(--amber);
}

.brand-mark i:first-child {
  width: 19px;
  height: 10px;
  top: 6px;
  left: 7px;
  transform: skew(-28deg);
}

.brand-mark i:last-child {
  width: 19px;
  height: 10px;
  right: 7px;
  bottom: 6px;
  transform: skew(-28deg);
}

.brand-name {
  font-size: 13px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.06em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 42px);
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding-block: 11px;
}

.site-nav a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: var(--amber);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 10px 16px !important;
  color: var(--ink);
  background: var(--amber);
  border: 2px solid var(--paper);
  box-shadow: 4px 4px 0 var(--paper);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.nav-cta:hover {
  box-shadow: 2px 2px 0 var(--paper);
  transform: translate(2px, 2px);
}

.menu-toggle {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(400px, 0.95fr);
  gap: clamp(40px, 6vw, 84px);
  padding-top: clamp(76px, 10vw, 132px);
  padding-bottom: 56px;
}

.hero-copy {
  align-self: center;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.eyebrow > span {
  width: 28px;
  height: 4px;
  background: var(--amber);
}

.hero h1 {
  margin-bottom: 28px;
  font-size: clamp(48px, 6.2vw, 84px);
}

.hero h1 span,
.contact h2 span {
  position: relative;
  z-index: 0;
  display: inline-block;
}

.hero h1 span::after,
.contact h2 span::after {
  position: absolute;
  z-index: -1;
  right: -3px;
  bottom: 0.05em;
  left: -3px;
  height: 0.24em;
  background: var(--amber);
  content: "";
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 34px;
  color: #544b60;
  font-size: 18px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 54px;
  padding: 12px 20px;
  border: 2px solid var(--ink);
  border-radius: 0;
  font-weight: 900;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.button-primary {
  color: var(--ink);
  background: var(--amber);
  box-shadow: 6px 6px 0 var(--ink);
}

.button-primary:hover {
  box-shadow: 2px 2px 0 var(--ink);
  transform: translate(4px, 4px);
}

.text-link {
  font-size: 14px;
  font-weight: 900;
  border-bottom: 2px solid var(--ink);
}

.hero-visual {
  min-width: 0;
}

.visual-frame {
  position: relative;
  min-height: 480px;
  overflow: hidden;
  background: var(--ink);
  border: 3px solid var(--ink);
  box-shadow: 12px 12px 0 var(--amber);
}

.visual-frame::before {
  position: absolute;
  top: -60px;
  right: -70px;
  width: 240px;
  height: 240px;
  background: var(--amber);
  content: "";
  transform: rotate(27deg);
}

.visual-label {
  position: absolute;
  z-index: 3;
  top: 22px;
  left: 24px;
  padding: 6px 11px;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--ink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.visual-grid {
  position: absolute;
  inset: 0;
  opacity: 0.14;
  background-image: linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size: 34px 34px;
}

.visual-orbit {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  border: 2px solid rgba(255, 255, 255, 0.62);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.visual-orbit-one {
  width: 330px;
  height: 330px;
}

.visual-orbit-two {
  width: 210px;
  height: 210px;
  border-style: dashed;
}

.visual-core {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  width: 104px;
  height: 104px;
  place-items: center;
  background: var(--amber);
  border: 3px solid var(--paper);
  transform: translate(-50%, -50%) rotate(45deg);
}

.visual-core span {
  width: 34px;
  height: 34px;
  background: var(--ink);
  border-radius: 50%;
}

.floating-card {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 128px;
  padding: 12px 13px;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--amber);
  font-size: 14px;
}

.floating-card i {
  color: #81738d;
  font-size: 11px;
  font-style: normal;
}

.card-strategy { top: 23%; left: 6%; }
.card-design { top: 54%; right: 6%; }
.card-tech { bottom: 8%; left: 17%; }

.hero-principles {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.hero-principles > div {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 16px;
  padding: 20px 24px;
}

.hero-principles > div + div {
  border-left: 2px solid var(--ink);
}

.hero-principles span {
  grid-row: 1 / 3;
  color: var(--amber);
  font-size: 24px;
  font-weight: 900;
}

.hero-principles strong {
  font-size: 16px;
}

.hero-principles small {
  color: var(--muted);
}

.ticker {
  overflow: hidden;
  color: var(--paper);
  background: var(--ink);
  border-block: 3px solid var(--ink);
}

.ticker-track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 3vw, 42px);
  min-width: max-content;
  padding: 17px 24px;
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 900;
  letter-spacing: 0.08em;
}

.ticker-track i {
  color: var(--amber);
  font-size: 11px;
}

.services,
.process,
.scenarios,
.contact {
  padding-top: clamp(96px, 11vw, 152px);
  padding-bottom: clamp(96px, 11vw, 152px);
}

.section-heading {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  column-gap: 60px;
  align-items: end;
  margin-bottom: 56px;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
}

.section-heading h2,
.capability-copy h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(40px, 5vw, 66px);
}

.section-heading > p:last-child {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  display: flex;
  min-height: 484px;
  padding: 28px;
  flex-direction: column;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  box-shadow: 12px 12px 0 var(--ink);
  transform: translate(-4px, -4px);
}

.service-card-accent {
  color: var(--paper);
  background: var(--ink-soft);
  box-shadow: 8px 8px 0 var(--amber);
}

.service-card-accent:hover {
  box-shadow: 12px 12px 0 var(--amber);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 2px solid currentColor;
  font-weight: 900;
}

.card-top i {
  font-size: 24px;
  font-style: normal;
}

.service-icon {
  position: relative;
  display: grid;
  width: 78px;
  height: 78px;
  margin: 42px 0 36px;
  place-items: center;
  background: var(--amber);
  border: 2px solid var(--ink);
}

.icon-diamond {
  width: 30px;
  height: 30px;
  border: 6px solid var(--ink);
  transform: rotate(45deg);
}

.icon-window {
  position: relative;
  width: 40px;
  height: 34px;
  border: 5px solid var(--ink);
}

.icon-window::before {
  position: absolute;
  top: 7px;
  right: -7px;
  width: 32px;
  height: 26px;
  border: 3px solid var(--ink);
  content: "";
}

.icon-code {
  position: relative;
  width: 40px;
  height: 7px;
  background: var(--ink);
  transform: rotate(-50deg);
}

.icon-code::after {
  position: absolute;
  right: 10px;
  width: 7px;
  height: 40px;
  background: var(--ink);
  content: "";
}

.service-card h3 {
  margin-bottom: 16px;
  font-size: 28px;
}

.service-card p {
  margin-bottom: 26px;
  opacity: 0.76;
}

.service-card ul {
  display: flex;
  gap: 8px;
  margin: auto 0 0;
  padding: 0;
  flex-wrap: wrap;
  list-style: none;
}

.service-card li {
  padding: 5px 10px;
  border: 1px solid currentColor;
  font-size: 12px;
  font-weight: 800;
}

.capabilities {
  overflow: hidden;
  color: var(--paper);
  background: var(--ink);
}

.capability-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(60px, 9vw, 120px);
  padding-top: clamp(96px, 12vw, 160px);
  padding-bottom: clamp(96px, 12vw, 160px);
}

.capability-visual {
  align-self: center;
}

.capability-poster {
  position: relative;
  min-height: 540px;
  overflow: hidden;
  color: var(--ink);
  background: var(--amber);
  border: 3px solid var(--paper);
  box-shadow: 14px 14px 0 var(--lilac);
}

.poster-tag {
  position: absolute;
  z-index: 4;
  top: 22px;
  left: 22px;
  padding: 6px 12px;
  color: var(--paper);
  background: var(--ink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.capability-poster strong {
  position: absolute;
  z-index: 3;
  right: 24px;
  bottom: 34px;
  font-size: clamp(62px, 7vw, 92px);
  line-height: 0.8;
  letter-spacing: -0.08em;
  text-align: right;
}

.capability-poster small {
  position: absolute;
  z-index: 3;
  bottom: 34px;
  left: 24px;
  padding-bottom: 5px;
  border-bottom: 3px solid var(--ink);
  font-weight: 900;
}

.poster-shape {
  position: absolute;
  border: 3px solid var(--ink);
}

.poster-shape-a {
  top: 70px;
  left: -40px;
  width: 260px;
  height: 260px;
  background: var(--paper);
  border-radius: 50%;
}

.poster-shape-b {
  z-index: 1;
  top: 166px;
  right: -35px;
  width: 230px;
  height: 180px;
  background: var(--lilac);
  transform: rotate(22deg);
}

.poster-shape-c {
  z-index: 2;
  top: 214px;
  left: 122px;
  width: 114px;
  height: 114px;
  background: var(--ink);
  transform: rotate(45deg);
}

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

.capability-copy {
  align-self: center;
}

.capability-copy h2 {
  margin-bottom: 30px;
}

.capability-intro {
  max-width: 650px;
  margin-bottom: 40px;
  color: #cfc6dc;
  font-size: 17px;
  line-height: 1.9;
}

.capability-list {
  border-top: 1px solid rgba(255,255,255,.35);
}

.capability-list article {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 20px;
  padding: 25px 0;
  border-bottom: 1px solid rgba(255,255,255,.35);
}

.capability-list article > span {
  align-self: start;
  width: fit-content;
  padding: 3px 9px;
  color: var(--ink);
  background: var(--amber);
  font-size: 12px;
  font-weight: 900;
}

.capability-list h3 {
  margin-bottom: 7px;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.capability-list p {
  margin: 0;
  color: #bdb4c9;
}

.process-heading {
  display: block;
}

.process-heading h2 {
  max-width: 740px;
}

.process-list {
  margin: 0;
  padding: 0;
  border-top: 3px solid var(--ink);
  list-style: none;
}

.process-list li {
  display: grid;
  grid-template-columns: 72px minmax(180px, .65fr) 1fr 20px;
  gap: 28px;
  align-items: center;
  padding: 28px 18px 28px 0;
  border-bottom: 2px solid var(--ink);
  transition: background 0.2s ease, padding 0.2s ease;
}

.process-list li:hover {
  padding-left: 18px;
  background: var(--amber-soft);
}

.step-number {
  font-size: 14px;
  font-weight: 900;
}

.step-title {
  display: flex;
  align-items: baseline;
  gap: 15px;
}

.step-title h3 {
  margin: 0;
  font-size: 32px;
}

.step-title small {
  color: var(--muted);
}

.process-list p {
  margin: 0;
  color: var(--muted);
}

.process-list i {
  color: var(--amber);
  font-size: 15px;
  font-style: normal;
}

.scenarios {
  border-top: 3px solid var(--ink);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.scenario-card {
  overflow: hidden;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow);
}

.scenario-wide {
  grid-column: 1 / -1;
}

.scenario-art {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  background-color: var(--lilac);
  background-image: linear-gradient(rgba(25,15,46,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(25,15,46,.18) 1px, transparent 1px);
  background-size: 30px 30px;
  border-bottom: 3px solid var(--ink);
}

.scenario-wide .scenario-art {
  min-height: 360px;
}

.art-portal::before {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(76%, 720px);
  height: 250px;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 12px 12px 0 var(--amber);
  content: "";
  transform: translate(-50%, -50%);
}

.art-portal .browser-bar {
  position: absolute;
  z-index: 1;
  top: calc(50% - 125px);
  left: 50%;
  width: min(76%, 720px);
  height: 35px;
  background: var(--ink);
  transform: translateX(-50%);
}

.art-portal i {
  position: absolute;
  z-index: 2;
  height: 16px;
  background: var(--ink);
}

.art-portal i:nth-of-type(1) { top: 45%; left: 26%; width: 26%; }
.art-portal i:nth-of-type(2) { top: 52%; left: 26%; width: 18%; background: var(--amber); }
.art-portal i:nth-of-type(3) { top: 42%; right: 25%; width: 88px; height: 88px; border-radius: 50%; }

.art-platform {
  background-color: var(--amber);
}

.art-platform span {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 10%;
  width: 27%;
  background: var(--ink);
  border: 3px solid var(--ink);
}

.art-platform i,
.art-platform b {
  position: absolute;
  right: 10%;
  width: 48%;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 6px 6px 0 var(--ink);
}

.art-platform i { top: 28px; height: 86px; }
.art-platform b { bottom: 28px; height: 112px; }

.art-growth {
  background-color: var(--ink);
}

.art-growth::after {
  position: absolute;
  top: 54px;
  right: 10%;
  bottom: 46px;
  left: 10%;
  border-bottom: 3px solid var(--paper);
  border-left: 3px solid var(--paper);
  content: "";
}

.art-growth span,
.art-growth i,
.art-growth b {
  position: absolute;
  z-index: 1;
  bottom: 49px;
  width: 16%;
  background: var(--amber);
  border: 3px solid var(--paper);
}

.art-growth span { left: 18%; height: 27%; }
.art-growth i { left: 43%; height: 49%; }
.art-growth b { left: 68%; height: 72%; }

.scenario-info {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: 20px;
  align-items: end;
  padding: 28px;
}

.scenario-info span {
  color: #766986;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.scenario-info h3 {
  margin: 7px 0 0;
  font-size: 26px;
}

.scenario-info p {
  margin: 0;
  color: var(--muted);
}

.contact {
  padding-top: 24px;
}

.contact-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 8vw, 92px);
  color: var(--paper);
  background: var(--ink-soft);
  border: 3px solid var(--ink);
  box-shadow: 12px 12px 0 var(--amber);
}

.contact-panel::after {
  position: absolute;
  top: -130px;
  right: -110px;
  width: 410px;
  height: 410px;
  border: 70px solid rgba(255,178,28,.95);
  border-radius: 50%;
  content: "";
}

.contact-panel > *:not(.contact-mark) {
  position: relative;
  z-index: 2;
}

.contact h2 {
  max-width: 730px;
  margin-bottom: 26px;
}

.contact-panel > p:not(.eyebrow) {
  max-width: 600px;
  margin-bottom: 30px;
  color: #d7cfe2;
  font-size: 17px;
}

.contact-button {
  margin-bottom: 22px;
}

.contact-panel > small {
  display: block;
  color: #b9aec7;
}

.contact-mark {
  position: absolute;
  z-index: 1;
  right: 60px;
  bottom: 54px;
  width: 120px;
  height: 120px;
  border: 3px solid var(--paper);
  transform: rotate(45deg);
}

.contact-mark span {
  position: absolute;
  background: var(--paper);
}

.contact-mark span:first-child {
  top: 57px;
  left: 18px;
  width: 80px;
  height: 3px;
}

.contact-mark span:last-child {
  top: 18px;
  left: 57px;
  width: 3px;
  height: 80px;
}

.brief-dialog {
  width: min(calc(100% - 32px), 620px);
  max-height: min(90vh, 820px);
  overflow: auto;
  padding: 0;
  color: var(--ink);
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 12px 12px 0 var(--amber);
}

.brief-dialog::backdrop {
  background: rgba(14, 7, 27, 0.76);
  backdrop-filter: blur(3px);
}

.brief-form {
  padding: 32px;
}

.dialog-head {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--ink);
}

.dialog-head .eyebrow {
  margin-bottom: 10px;
}

.dialog-head h2 {
  margin: 0;
  font-size: 32px;
}

.dialog-close {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  color: var(--paper);
  background: var(--ink);
  border: 0;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}

.dialog-intro {
  margin: 24px 0;
  color: var(--muted);
}

.brief-form > label,
.brief-result label {
  display: block;
  margin-bottom: 18px;
  font-size: 14px;
  font-weight: 900;
}

.brief-form label > span {
  display: block;
  margin-bottom: 7px;
}

.brief-form select,
.brief-form textarea {
  width: 100%;
  margin-top: 7px;
  padding: 12px 14px;
  color: var(--ink);
  background: var(--pearl);
  border: 2px solid var(--ink);
  border-radius: 0;
}

.brief-form select {
  margin-top: 0;
}

.brief-generate {
  width: 100%;
  margin-top: 4px;
}

.brief-result {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 2px solid var(--ink);
}

.brief-result textarea {
  resize: vertical;
}

.copy-button {
  padding: 9px 15px;
  background: transparent;
  border: 2px solid var(--ink);
  font-weight: 900;
  cursor: pointer;
}

.copy-status {
  display: inline;
  margin: 0 0 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

@media (max-width: 920px) {
  .section-shell,
  .header-inner {
    width: min(calc(100% - 36px), var(--max));
  }

  .js .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    padding: 8px 10px;
    color: var(--paper);
    background: transparent;
    border: 2px solid rgba(255,255,255,.55);
    font-size: 13px;
    font-weight: 900;
    cursor: pointer;
  }

  .menu-icon {
    display: grid;
    gap: 5px;
  }

  .menu-icon i {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--amber);
    transition: transform 0.2s ease;
  }

  .menu-toggle[aria-expanded="true"] .menu-icon i:first-child {
    transform: translateY(3.5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-icon i:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .js .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    padding: 12px 18px 20px;
    background: var(--ink);
    border-bottom: 3px solid var(--amber);
    transform: scaleY(0);
    transform-origin: top;
    visibility: hidden;
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease, visibility 0.2s;
  }

  .js .site-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: scaleY(1);
  }

  .js .site-nav a {
    padding: 13px 6px;
    border-bottom: 1px solid rgba(255,255,255,.18);
  }

  .js .site-nav .nav-cta {
    width: fit-content;
    margin-top: 12px;
    border-bottom: 2px solid var(--paper);
  }

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

  .visual-frame {
    min-height: 430px;
  }

  .hero-principles {
    grid-template-columns: 1fr;
  }

  .hero-principles > div + div {
    border-top: 2px solid var(--ink);
    border-left: 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 26px;
  }

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

  .service-card {
    min-height: 430px;
  }

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

  .capability-visual {
    width: min(100%, 530px);
    margin-inline: auto;
  }

  .process-list li {
    grid-template-columns: 52px 180px 1fr 12px;
    gap: 18px;
  }

  .scenario-info {
    grid-template-columns: 1fr;
  }

  html:not(.js) .header-inner {
    flex-wrap: wrap;
    padding-block: 12px;
  }

  html:not(.js) .site-nav {
    flex-basis: 100%;
    flex-wrap: wrap;
    gap: 4px 22px;
    padding-top: 10px;
  }
}

@media (max-width: 640px) {
  html {
    scroll-padding-top: 76px;
  }

  .section-shell,
  .header-inner {
    width: min(calc(100% - 28px), var(--max));
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-name {
    display: none;
  }

  .hero {
    gap: 46px;
    padding-top: 62px;
  }

  .hero h1 {
    font-size: clamp(43px, 13vw, 62px);
  }

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

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

  .visual-frame {
    min-height: 370px;
    box-shadow: 8px 8px 0 var(--amber);
  }

  .visual-orbit-one {
    width: 270px;
    height: 270px;
  }

  .visual-orbit-two {
    width: 170px;
    height: 170px;
  }

  .visual-core {
    width: 86px;
    height: 86px;
  }

  .floating-card {
    width: 110px;
    padding: 9px;
    font-size: 12px;
  }

  .card-strategy { top: 25%; left: 4%; }
  .card-design { top: 54%; right: 4%; }

  .ticker-track {
    justify-content: flex-start;
  }

  .section-heading h2,
  .capability-copy h2,
  .contact h2 {
    font-size: clamp(38px, 11vw, 52px);
  }

  .service-card {
    min-height: 450px;
    padding: 24px;
  }

  .capability-layout {
    gap: 74px;
  }

  .capability-poster {
    min-height: 430px;
    box-shadow: 9px 9px 0 var(--lilac);
  }

  .poster-shape-a {
    width: 210px;
    height: 210px;
  }

  .poster-shape-b {
    width: 180px;
    height: 145px;
  }

  .poster-shape-c {
    top: 190px;
    left: 100px;
    width: 90px;
    height: 90px;
  }

  .capability-poster strong {
    font-size: 65px;
  }

  .capability-list article {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .process-list li {
    grid-template-columns: 42px 1fr 12px;
    padding: 24px 8px 24px 0;
  }

  .process-list li:hover {
    padding-left: 8px;
  }

  .process-list p {
    grid-column: 2 / 4;
  }

  .step-title {
    flex-wrap: wrap;
  }

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

  .scenario-wide {
    grid-column: auto;
  }

  .scenario-art,
  .scenario-wide .scenario-art {
    min-height: 260px;
  }

  .art-portal::before {
    height: 180px;
  }

  .art-portal .browser-bar {
    top: calc(50% - 90px);
  }

  .art-portal i:nth-of-type(1) { left: 20%; width: 30%; }
  .art-portal i:nth-of-type(2) { left: 20%; }
  .art-portal i:nth-of-type(3) { right: 20%; width: 60px; height: 60px; }

  .contact-panel {
    padding: 44px 25px 52px;
    box-shadow: 8px 8px 0 var(--amber);
  }

  .contact-panel::after {
    top: -145px;
    right: -190px;
  }

  .contact-mark {
    display: none;
  }

  .contact-button {
    width: 100%;
  }

  .brief-form {
    padding: 22px;
  }

  .dialog-head h2 {
    font-size: 27px;
  }
}

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

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

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

@media print {
  .site-header,
  .ticker,
  .contact-button {
    display: none;
  }

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