:root {
  color-scheme: dark;
  --bg: #080808;
  --bg-soft: #0f0f0f;
  --ink: #f4f2ee;
  --muted: #a8a29a;
  --quiet: #6f6a62;
  --line: rgba(244, 242, 238, 0.16);
  --line-strong: rgba(244, 242, 238, 0.32);
  --surface: rgba(244, 242, 238, 0.045);
  --surface-strong: rgba(244, 242, 238, 0.08);
  --accent: #c7a15a;
  --accent-soft: rgba(199, 161, 90, 0.16);
  --max: 1240px;
  --gutter: clamp(18px, 4vw, 56px);
  --radius: 8px;
  --ease: cubic-bezier(0.2, 0.75, 0.24, 1);
  --mono: "DM Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  overflow-x: hidden;
  isolation: isolate;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(90deg, rgba(244, 242, 238, 0.045) 1px, transparent 1px),
    linear-gradient(rgba(244, 242, 238, 0.045) 1px, transparent 1px);
  background-size: 8.333vw 8.333vw;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 82%);
}

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

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

button,
input,
textarea {
  font: inherit;
}

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

h1,
h2,
h3 {
  letter-spacing: 0;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: 0.18;
  background-image: radial-gradient(rgba(255, 255, 255, 0.52) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
}

.cursor-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 420ms ease;
}

.cursor-field.is-active {
  opacity: 0.72;
}

.cursor-field::before,
.cursor-field::after {
  position: absolute;
  left: 0;
  top: 0;
  border-radius: 50%;
  content: "";
  will-change: transform;
}

.cursor-field::before {
  width: 420px;
  height: 420px;
  background:
    radial-gradient(circle at 38% 38%, rgba(244, 242, 238, 0.26), transparent 12%),
    radial-gradient(circle at 46% 48%, rgba(199, 161, 90, 0.36), transparent 32%),
    radial-gradient(circle at 66% 38%, rgba(81, 172, 196, 0.18), transparent 44%),
    radial-gradient(circle, rgba(199, 161, 90, 0.08), transparent 72%);
  filter: blur(24px);
  mix-blend-mode: screen;
  transform: translate3d(calc(var(--cursor-x, 50vw) - 50%), calc(var(--cursor-y, 50vh) - 50%), 0) scale(var(--cursor-scale, 1));
}

.cursor-field::after {
  width: 90px;
  height: 90px;
  border: 1px solid rgba(199, 161, 90, 0.22);
  background: radial-gradient(circle, rgba(244, 242, 238, 0.12), transparent 64%);
  filter: blur(2px);
  transform: translate3d(calc(var(--cursor-x, 50vw) - 50%), calc(var(--cursor-y, 50vh) - 50%), 0) scale(var(--cursor-ring, 1));
}

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

.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 90;
  width: 100%;
  height: 2px;
  background: rgba(244, 242, 238, 0.08);
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
}

.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 80;
  display: flex;
  width: min(calc(100% - 28px), var(--max));
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 8, 8, 0.72);
  transform: translateX(-50%);
  backdrop-filter: blur(20px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: clamp(12px, 2vw, 24px);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav a,
.site-footer a,
.mail-link {
  transition: color 180ms ease, opacity 180ms ease;
}

.site-nav a,
.button {
  position: relative;
  overflow: hidden;
}

.site-nav a::after,
.button::after {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--accent);
  content: attr(data-hover-label);
  transform: translateY(105%);
  transition: transform 260ms var(--ease);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.button:hover,
.button:focus-visible {
  color: transparent;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.button:hover::after,
.button:focus-visible::after {
  transform: translateY(0);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-footer a:hover,
.site-footer a:focus-visible,
.mail-link:hover,
.mail-link:focus-visible {
  color: var(--accent);
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: clamp(28px, 7vw, 96px);
  align-items: end;
  padding: 136px var(--gutter) 52px;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 74% 28%, rgba(199, 161, 90, 0.14), transparent 30%),
    linear-gradient(180deg, transparent 0%, rgba(8, 8, 8, 0.92) 92%);
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 8, 8, 0.98) 0%, rgba(8, 8, 8, 0.82) 48%, rgba(8, 8, 8, 0.44) 100%),
    linear-gradient(180deg, rgba(8, 8, 8, 0.16) 0%, rgba(8, 8, 8, 0.94) 100%);
  content: "";
}

.hero-media img {
  position: absolute;
  border: 1px solid rgba(244, 242, 238, 0.16);
  border-radius: var(--radius);
  object-fit: cover;
  filter: grayscale(0.35) contrast(1.08) saturate(0.72);
  transform: translate3d(calc(var(--drift-x, 0px) * -0.24), calc(var(--drift-y, 0px) * -0.18), 0);
  transition: transform 420ms var(--ease), opacity 260ms ease;
}

.hero-portrait {
  right: clamp(18px, 6vw, 96px);
  bottom: clamp(64px, 12vw, 140px);
  width: min(34vw, 460px);
  height: min(58vh, 620px);
  opacity: 0.8;
  object-position: left center;
}

.hero-proof {
  right: clamp(260px, 36vw, 560px);
  top: clamp(110px, 19vh, 190px);
  width: min(22vw, 320px);
  height: min(22vh, 210px);
  opacity: 0.42;
  transform: translate3d(calc(var(--drift-x, 0px) * 0.32), calc(var(--drift-y, 0px) * 0.22), 0) rotate(-1deg);
}

.hero-copy {
  max-width: 980px;
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(34px, 6vw, 72px);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.availability span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 20px rgba(199, 161, 90, 0.6);
}

h1 {
  max-width: 980px;
  font-size: clamp(58px, 11vw, 168px);
  font-weight: 950;
  line-height: 0.9;
  text-wrap: balance;
}

h2 {
  font-size: clamp(34px, 5.3vw, 78px);
  font-weight: 920;
  line-height: 1.02;
  text-wrap: balance;
}

h3 {
  font-size: clamp(22px, 2.3vw, 34px);
  font-weight: 880;
  line-height: 1.12;
  text-wrap: balance;
}

.hero-lede {
  max-width: 840px;
  margin-top: 34px;
  color: rgba(244, 242, 238, 0.72);
  font-size: clamp(18px, 2vw, 25px);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 12px 20px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 180ms var(--ease), border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #0b0b0b;
}

.button-primary::after {
  color: #0b0b0b;
}

.button-quiet {
  color: var(--ink);
}

.hero-panel {
  display: grid;
  gap: 32px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.hero-panel p,
.section-label,
.row-main p,
.row-no,
.case-card span,
.case-label,
.proof-item span,
.method-list span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-panel ul {
  display: grid;
  gap: 16px;
  padding: 0;
  color: var(--muted);
  font-size: 15px;
  list-style: none;
}

.hero-panel li {
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}

.scroll-cue {
  position: absolute;
  right: var(--gutter);
  bottom: 28px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-cue i {
  position: relative;
  width: 28px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.scroll-cue i::after {
  position: absolute;
  top: 9px;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: var(--accent);
  content: "";
  transform: translateX(-50%);
  animation: scroll-dot 1.8s ease-in-out infinite;
}

.section {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin: 0 auto;
  padding: clamp(84px, 12vw, 150px) 0;
}

.section[id] {
  scroll-margin-top: 112px;
}

.section-head {
  display: grid;
  max-width: 1020px;
  gap: 24px;
  margin-bottom: clamp(36px, 6vw, 72px);
}

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

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
  gap: clamp(28px, 6vw, 80px);
}

.intro-grid p {
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 22px);
}

.stage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: clamp(34px, 6vw, 72px);
}

.stage-grid article {
  min-height: 280px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 22px;
  transition: transform 180ms var(--ease), border-color 180ms ease, background 180ms ease;
}

.stage-grid article:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: var(--surface-strong);
}

.stage-grid span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stage-grid h3 {
  margin-top: 70px;
}

.stage-grid p {
  margin-top: 16px;
  color: var(--muted);
}

.system-index {
  border-top: 1px solid var(--line);
}

.system-row {
  position: relative;
  display: grid;
  grid-template-columns: 90px minmax(260px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(18px, 4vw, 52px);
  align-items: start;
  border-bottom: 1px solid var(--line);
  padding: clamp(24px, 4vw, 44px) 0;
  cursor: pointer;
  outline: none;
  transition: border-color 180ms ease, opacity 180ms ease, transform 180ms var(--ease);
}

.system-row::before {
  position: absolute;
  inset: 0 calc(var(--gutter) * -1);
  z-index: -1;
  background: linear-gradient(90deg, rgba(199, 161, 90, 0.1), transparent 52%);
  content: "";
  opacity: 0;
  transition: opacity 180ms ease;
}

.system-row::after {
  position: absolute;
  right: 0;
  top: 50%;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent 48%, var(--accent) 48%, var(--accent) 52%, transparent 52%),
    linear-gradient(transparent 48%, var(--accent) 48%, var(--accent) 52%, transparent 52%);
  content: "";
  opacity: 0;
  transform: translate(12px, -50%) scale(0.72) rotate(-18deg);
  transition: opacity 220ms ease, transform 260ms var(--ease), border-color 220ms ease;
}

.system-row:hover,
.system-row:focus-visible,
.system-row.is-selected {
  border-color: var(--line-strong);
  transform: translateX(8px);
}

.system-row:hover::after,
.system-row:focus-visible::after,
.system-row.is-selected::after {
  border-color: var(--accent);
  opacity: 1;
  transform: translate(0, -50%) scale(1) rotate(0deg);
}

.system-row:hover::before,
.system-row:focus-visible::before,
.system-row.is-selected::before {
  opacity: 1;
}

.row-no {
  color: var(--quiet);
}

.row-main {
  display: grid;
  gap: 12px;
}

.row-main strong {
  max-width: 560px;
  color: rgba(244, 242, 238, 0.74);
  font-size: clamp(17px, 1.7vw, 21px);
  font-weight: 500;
}

.row-detail dl,
.case-card dl {
  display: grid;
  gap: 14px;
}

.row-detail div,
.case-card dl div {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

dt {
  color: var(--quiet);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

dd {
  color: var(--muted);
  font-size: 15px;
}

.index-preview {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 70;
  width: min(360px, calc(100vw - 48px));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 10, 10, 0.82);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  padding: 18px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 180ms ease, transform 180ms var(--ease);
  backdrop-filter: blur(18px);
}

.index-preview.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.index-preview span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.index-preview strong {
  display: block;
  margin-top: 12px;
  font-size: 24px;
  line-height: 1.1;
}

.index-preview p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(280px, 1fr));
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x proximity;
}

.case-grid::-webkit-scrollbar {
  height: 0;
}

.case-card {
  position: relative;
  display: flex;
  min-height: 470px;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 22px;
  scroll-snap-align: start;
  transition: transform 180ms var(--ease), border-color 180ms ease, background 180ms ease;
}

.case-card:nth-child(2) {
  margin-top: 42px;
}

.case-card:nth-child(3) {
  margin-top: 84px;
}

.case-card:nth-child(4) {
  margin-top: 24px;
}

.case-card::before,
.proof-item::before,
.method-list li::before {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--card-x, 50%) var(--card-y, 50%), rgba(199, 161, 90, 0.12), transparent 38%);
  content: "";
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.case-card:hover::before,
.proof-item:hover::before,
.method-list li:hover::before {
  opacity: 1;
}

.case-card:hover,
.case-card:focus-within {
  transform: translateY(-5px);
  border-color: var(--line-strong);
  background: var(--surface-strong);
}

.case-card h3 {
  margin-top: 28px;
}

.case-card p {
  margin-top: 16px;
  color: var(--muted);
}

.case-card strong {
  color: var(--ink);
  font-size: 16px;
  font-weight: 720;
}

.case-label {
  display: grid;
  width: max-content;
  min-height: 44px;
  align-content: start;
  gap: 4px;
}

.case-label b,
.case-label i {
  display: block;
  font: inherit;
  letter-spacing: inherit;
  line-height: 1;
}

.case-label i {
  color: rgba(199, 161, 90, 0.68);
  font-style: normal;
}

.proof-index {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.proof-item {
  position: relative;
  display: flex;
  min-height: 280px;
  grid-column: span 2;
  flex-direction: column;
  justify-content: flex-start;
  gap: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 20px;
  transition: transform 180ms var(--ease), border-color 180ms ease;
}

.proof-item:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.proof-photo {
  grid-column: span 3;
  min-height: 420px;
  overflow: hidden;
  padding: 0;
}

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

.proof-photo > img {
  width: 100%;
  height: auto;
  max-height: 78vh;
  border-bottom: 1px solid var(--line);
  object-fit: contain;
  background: #f4f2ee;
  filter: contrast(1.03) saturate(0.92);
}

.proof-photo div {
  padding: 20px;
}

.proof-gallery-media {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 1px;
  padding: 0 !important;
  border-bottom: 1px solid var(--line);
  background: var(--line);
}

.proof-gallery-media img {
  width: 100%;
  height: min(58vh, 520px);
  object-fit: cover;
  filter: grayscale(0.06) contrast(1.02) saturate(0.9);
}

.proof-item h3 {
  margin-top: 14px;
}

.proof-item p {
  margin-top: 16px;
  color: var(--muted);
}

.method-section .section-head p:not(.section-label) {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 22px);
}

.method-stages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: clamp(28px, 5vw, 56px);
}

.method-stages article,
.story-values span {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.method-stages article {
  min-height: 260px;
  padding: 22px;
  transition: transform 180ms var(--ease), border-color 180ms ease, background 180ms ease;
}

.method-stages article:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: var(--surface-strong);
}

.method-stages span,
.story-values span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.method-stages h3 {
  margin-top: 54px;
}

.method-stages p {
  margin-top: 16px;
  color: var(--muted);
}

.method-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.method-list li {
  position: relative;
  min-height: 330px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px;
  transition: background 180ms ease;
}

.method-list li:hover {
  background: var(--surface);
}

.method-list h3 {
  margin-top: 86px;
}

.method-list p {
  margin-top: 16px;
  color: var(--muted);
}

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

.story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(28px, 6vw, 80px);
  align-items: start;
}

.story-grid > p {
  max-width: 840px;
  color: rgba(244, 242, 238, 0.76);
  font-size: clamp(21px, 2.5vw, 34px);
  line-height: 1.38;
}

.story-values {
  display: grid;
  gap: 12px;
}

.story-values span {
  display: grid;
  min-height: 62px;
  align-items: center;
  padding: 14px 16px;
}

.contact-section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: clamp(28px, 6vw, 80px);
  align-items: stretch;
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.contact-marquee {
  grid-column: 1 / -1;
  display: flex;
  width: calc(100% + var(--gutter) * 2);
  margin: calc(clamp(84px, 12vw, 150px) * -0.46) calc(var(--gutter) * -1) clamp(28px, 5vw, 60px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  color: rgba(244, 242, 238, 0.12);
  font-family: var(--mono);
  font-size: clamp(38px, 7vw, 96px);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

.contact-marquee div {
  display: flex;
  min-width: max-content;
  animation: marquee-flow 34s linear infinite;
}

.contact-marquee span {
  padding-right: clamp(28px, 5vw, 72px);
}

.contact-copy p:not(.section-label) {
  max-width: 820px;
  margin-top: 24px;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 22px);
}

.diagnostic-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  max-width: 720px;
  margin-top: 26px;
}

.diagnostic-list span {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 14px 16px;
  color: rgba(244, 242, 238, 0.8);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fit-panel {
  display: grid;
  gap: 14px;
}

.fit-panel > div,
.mail-link {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 20px;
}

.fit-panel p {
  color: var(--muted);
}

.mail-link {
  place-items: center;
  min-height: 72px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px var(--gutter);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

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

@keyframes scroll-dot {
  0% {
    opacity: 0;
    transform: translate(-50%, 0);
  }

  45% {
    opacity: 1;
  }

  100% {
    opacity: 0;
    transform: translate(-50%, 22px);
  }
}

@keyframes marquee-flow {
  to {
    transform: translateX(-100%);
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .cursor-field {
    display: none;
  }

  .system-row:hover,
  .case-card:hover,
  .proof-item:hover,
  .button:hover {
    transform: none;
  }
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 620px;
  }

  .hero-portrait {
    right: 18px;
    width: min(48vw, 420px);
  }

  .hero-proof {
    right: min(48vw, 380px);
    width: min(28vw, 280px);
  }

  .system-row {
    grid-template-columns: 72px 1fr;
  }

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

  .row-detail {
    grid-column: 2;
  }

  .proof-index {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof-item,
  .proof-photo {
    grid-column: auto;
  }

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

  .method-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .method-stages {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    transform: none;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .site-nav {
    max-width: 68vw;
    overflow-x: auto;
    white-space: nowrap;
  }

  .cursor-field {
    display: none;
  }

  .site-nav::-webkit-scrollbar {
    height: 0;
  }

  .hero {
    display: flex;
    flex-direction: column;
    min-height: auto;
    padding: 74px 18px 52px;
  }

  .hero-copy {
    order: 1;
  }

  .availability {
    margin-bottom: 42px;
    font-size: 11px;
  }

  h1 {
    font-size: clamp(48px, 17vw, 82px);
  }

  .hero-lede {
    font-size: 17px;
  }

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

  .diagnostic-list {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    display: none;
  }

  .hero-media {
    position: relative;
    order: 2;
    z-index: 0;
    height: 280px;
    margin-top: 42px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg-soft);
  }

  .hero-media::after {
    background: linear-gradient(180deg, transparent 0%, rgba(8, 8, 8, 0.68) 100%);
  }

  .hero-media img {
    border: 0;
    transform: none;
  }

  .hero-portrait {
    right: 0;
    bottom: 0;
    width: 64%;
    height: 100%;
  }

  .hero-proof {
    left: 0;
    top: 0;
    right: auto;
    width: 44%;
    height: 100%;
    opacity: 0.62;
  }

  .scroll-cue {
    position: static;
    order: 3;
    margin-top: 44px;
  }

  .section {
    width: calc(100% - 36px);
    padding: 76px 0;
  }

  .intro-grid,
  .story-grid,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .system-row {
    grid-template-columns: 1fr;
    gap: 18px;
    transform: none !important;
  }

  .stage-grid article {
    min-height: 240px;
  }

  .row-detail {
    grid-column: auto;
  }

  .row-detail div,
  .case-card dl div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .index-preview {
    display: none;
  }

  .case-grid {
    grid-template-columns: none;
    grid-auto-columns: minmax(280px, 86vw);
    grid-auto-flow: column;
  }

  .case-card {
    min-height: 430px;
    margin-top: 0 !important;
  }

  .contact-marquee {
    margin-top: -30px;
    font-size: 34px;
  }

  .proof-index,
  .method-list {
    grid-template-columns: 1fr;
  }

  .method-stages article {
    min-height: 220px;
  }

  .proof-photo {
    min-height: 0;
  }

  .proof-photo img {
    height: 220px;
  }

  .proof-wide > img {
    height: auto;
    max-height: none;
  }

  .proof-gallery-media {
    grid-template-columns: 1fr;
  }

  .proof-gallery-media img {
    height: auto;
  }

  .method-list li {
    min-height: 250px;
  }

  .method-list h3 {
    margin-top: 58px;
  }

  .site-footer {
    flex-direction: column;
  }
}