:root {
  --paper: #f9f7ee;
  --paper-2: #f1efe3;
  --white: #fffdf7;
  --ink: #243b31;
  --ink-soft: #53645b;
  --moss: #37674b;
  --leaf: #b7d98a;
  --leaf-bright: #dff3a8;
  --green-pop: #87d85b;
  --honey: #f6d36e;
  --coral: #ff806b;
  --blue: #8ed9e6;
  --line: rgba(55, 103, 75, 0.17);
  --shadow: 0 22px 70px rgba(47, 78, 59, 0.12);
  --radius: 30px;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "DM Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

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

a,
button {
  color: inherit;
}

button {
  font: inherit;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 9999;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

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

.container {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.section-pad {
  padding: clamp(88px, 10vw, 150px) 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--moss);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

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

.section-heading h2,
.work-header h2,
.evidence-intro h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.13;
}

.section-heading > p:last-child,
.evidence-intro > p {
  max-width: 600px;
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(249, 247, 238, 0.84);
  box-shadow: 0 8px 30px rgba(36, 59, 49, 0.06);
  backdrop-filter: blur(16px);
}

.nav-shell {
  width: min(1240px, calc(100% - 48px));
  min-height: 78px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
}

.wordmark-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid var(--moss);
  border-radius: 50% 48% 44% 52%;
  background: var(--leaf-bright);
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 900;
}

.wordmark strong,
.wordmark small {
  display: block;
}

.wordmark strong {
  font-family: var(--serif);
  font-size: 0.96rem;
  line-height: 1.2;
}

.wordmark small {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 0.66rem;
}

.site-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-menu a {
  position: relative;
  color: var(--ink);
  font-size: 0.83rem;
  font-weight: 600;
  text-decoration: none;
}

.site-menu > a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  background: var(--moss);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.2s ease;
}

.site-menu > a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 10px 16px;
  border: 1px solid var(--moss);
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-cta:hover {
  background: var(--moss);
  color: white;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: var(--leaf-bright);
  cursor: pointer;
}

.menu-button span {
  width: 18px;
  height: 2px;
  margin: 4px auto;
  display: block;
  background: var(--ink);
  transition: transform 0.2s ease;
}

.hero {
  min-height: 100svh;
  padding-top: 140px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  top: -250px;
  left: -260px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  gap: clamp(44px, 8vw, 110px);
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero h1 {
  max-width: 800px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(4.2rem, 8.3vw, 8.4rem);
  font-weight: 700;
  letter-spacing: -0.075em;
  line-height: 0.98;
}

.hand-highlight {
  position: relative;
  white-space: nowrap;
  z-index: 0;
}

.hand-highlight::after {
  content: "";
  position: absolute;
  left: -0.01em;
  right: -0.04em;
  bottom: 0.08em;
  z-index: -1;
  height: 0.22em;
  border-radius: 50% 28% 47% 35%;
  background: var(--honey);
  transform: rotate(-1deg);
}

.hero-lead {
  max-width: 670px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.04rem, 1.6vw, 1.25rem);
}

.hero-lead strong {
  color: var(--ink);
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 13px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  background: var(--moss);
  color: white;
  box-shadow: 0 12px 30px rgba(55, 103, 75, 0.2);
}

.button-primary:hover {
  box-shadow: 0 16px 34px rgba(55, 103, 75, 0.28);
}

.text-link,
.card-link {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
  text-underline-offset: 5px;
}

.role-chips,
.mini-tags {
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
}

.role-chips {
  margin: 30px 0 0;
  gap: 8px;
}

.role-chips li,
.mini-tags li {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 253, 247, 0.55);
  font-size: 0.72rem;
}

.role-chips li {
  padding: 7px 12px;
}

.hero-art {
  min-height: 590px;
  position: relative;
  display: grid;
  place-items: center;
  transform-style: preserve-3d;
}

.hero-blob {
  position: absolute;
  width: 91%;
  aspect-ratio: 0.86;
  border-radius: 47% 53% 43% 57% / 39% 39% 61% 61%;
  background: var(--leaf);
  transform: rotate(6deg);
  box-shadow: inset 0 0 0 1px rgba(55, 103, 75, 0.08);
}

.hero-art img {
  width: min(470px, 100%);
  position: relative;
  z-index: 2;
  transform: translate3d(var(--parallax-x, 0), var(--parallax-y, 0), 20px);
  filter: drop-shadow(0 20px 35px rgba(55, 103, 75, 0.14));
  transition: transform 0.2s ease-out;
}

.orbit-label {
  position: absolute;
  z-index: 3;
  padding: 9px 13px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.orbit-label span {
  margin-right: 7px;
  color: var(--moss);
}

.orbit-label-a {
  top: 14%;
  left: -4%;
  transform: rotate(-8deg);
}

.orbit-label-b {
  right: -4%;
  bottom: 22%;
  transform: rotate(6deg);
}

.hero-note {
  position: absolute;
  right: -2%;
  top: 16%;
  z-index: 4;
  padding: 13px 16px;
  display: flex;
  align-items: flex-start;
  gap: 9px;
  border-radius: 16px;
  background: var(--white);
  box-shadow: var(--shadow);
  transform: rotate(3deg);
}

.hero-note p {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.5;
}

.hero-note-dot {
  width: 8px;
  height: 8px;
  margin-top: 4px;
  border-radius: 50%;
  background: var(--coral);
}

.hero-marquee {
  width: 100%;
  margin-top: clamp(50px, 7vh, 90px);
  border-block: 1px solid var(--line);
  overflow: hidden;
}

.hero-marquee > div {
  width: min(1180px, calc(100% - 48px));
  min-height: 58px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-marquee i {
  color: var(--moss);
  font-style: normal;
}

.hero-enter {
  opacity: 1;
  transform: none;
}

.js .hero-enter {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.js .is-loaded .hero-enter {
  opacity: 1;
  transform: none;
}

.hero-delay-1 {
  transition-delay: 0.07s;
}

.hero-delay-2 {
  transition-delay: 0.14s;
}

.hero-delay-3 {
  transition-delay: 0.21s;
}

.hero-delay-4 {
  transition-delay: 0.28s;
}

.positioning {
  background: var(--white);
}

.positioning-grid {
  margin-top: 70px;
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.positioning-grid::before {
  content: "";
  position: absolute;
  top: 70px;
  left: 14%;
  right: 14%;
  border-top: 1px dashed rgba(55, 103, 75, 0.28);
}

.lens-card {
  min-height: 330px;
  position: relative;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.lens-number {
  font-family: var(--mono);
  font-size: 0.7rem;
}

.lens-icon {
  width: 76px;
  height: 76px;
  margin: 28px 0;
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  border: 1px solid var(--moss);
  border-radius: 50%;
  background: var(--leaf-bright);
  font-family: var(--serif);
  font-size: 2.2rem;
}

.lens-card:nth-child(2) .lens-icon {
  background: var(--honey);
}

.lens-card:nth-child(3) .lens-icon {
  background: var(--blue);
}

.lens-card h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.5rem;
}

.lens-card p {
  margin: 12px 0 24px;
  color: var(--ink-soft);
  font-size: 0.93rem;
}

.lens-card small {
  color: var(--moss);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.work-header,
.evidence-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.filter-bar {
  max-width: 100%;
  display: flex;
  gap: 8px;
}

.filter-chip {
  padding: 9px 14px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 0.76rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

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

.filter-chip.is-active {
  background: var(--ink);
  color: white;
}

.project-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.project-card {
  min-height: 390px;
  position: relative;
  padding: clamp(28px, 4vw, 46px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: opacity 0.24s ease, transform 0.24s ease, box-shadow 0.24s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.project-card.is-filtered-out {
  display: none;
}

.project-featured {
  min-height: 520px;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 40px;
  background: var(--leaf);
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-meta span + span::before {
  content: "•";
  margin-right: 9px;
}

.project-card h3 {
  margin: 40px 0 14px;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.project-card:not(.project-featured) h3 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.project-card p {
  max-width: 590px;
  color: var(--ink-soft);
}

.mini-tags {
  margin: 30px 0;
  gap: 7px;
}

.mini-tags li {
  padding: 6px 10px;
  background: rgba(255, 253, 247, 0.42);
  font-family: var(--mono);
}

.project-visual {
  min-height: 400px;
  position: relative;
  display: grid;
  place-items: center;
}

.mini-window {
  width: min(360px, 90%);
  aspect-ratio: 1.05;
  padding: 18px;
  border: 1px solid rgba(36, 59, 49, 0.18);
  border-radius: 22px;
  background: var(--white);
  box-shadow: 0 30px 70px rgba(36, 59, 49, 0.18);
  transform: rotate(3deg);
}

.mini-window-bar {
  display: flex;
  gap: 6px;
}

.mini-window-bar i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--coral);
}

.mini-window-bar i:nth-child(2) {
  background: var(--honey);
}

.mini-window-bar i:nth-child(3) {
  background: var(--green-pop);
}

.mini-score {
  width: 120px;
  height: 120px;
  margin: 44px auto 30px;
  display: grid;
  place-items: center;
  border: 12px solid var(--leaf-bright);
  border-right-color: var(--moss);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 2.9rem;
  font-weight: 700;
}

.mini-lines {
  display: grid;
  gap: 8px;
}

.mini-lines i {
  height: 8px;
  border-radius: 999px;
  background: var(--paper-2);
}

.mini-lines i:nth-child(2) {
  width: 78%;
}

.mini-lines i:nth-child(3) {
  width: 56%;
}

.mini-window > span {
  margin-top: 18px;
  display: block;
  color: var(--moss);
  font-family: var(--mono);
  font-size: 0.65rem;
  text-align: center;
}

.visual-sticker {
  position: absolute;
  right: 0;
  bottom: 10%;
  padding: 10px 14px;
  border: 1px solid var(--ink);
  border-radius: 4px;
  background: var(--honey);
  font-family: var(--mono);
  font-size: 0.65rem;
  transform: rotate(-7deg);
}

.project-stat {
  margin: 46px 0 20px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.project-stat strong {
  font-family: var(--serif);
  font-size: 5rem;
  line-height: 1;
}

.project-stat span {
  font-size: 0.8rem;
}

.project-research {
  background: var(--paper-2);
}

.research-mark {
  width: 140px;
  height: 140px;
  margin-top: 28px;
  position: relative;
  display: grid;
  place-items: center;
  border-radius: 50% 45% 55% 44%;
  background: var(--blue);
}

.research-mark span {
  font-family: var(--serif);
  font-size: 4rem;
}

.research-mark i {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--coral);
}

.research-mark i:nth-child(2) {
  top: 0;
  right: 9px;
}

.research-mark i:nth-child(3) {
  right: -15px;
  bottom: 42px;
  background: var(--honey);
}

.research-mark i:nth-child(4) {
  left: 4px;
  bottom: -5px;
  background: var(--green-pop);
}

.project-note {
  font-size: 0.75rem;
}

.flagship {
  background: var(--ink);
  color: white;
}

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

.case-intro {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 80px;
  align-items: end;
}

.case-intro h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 6vw, 6.2rem);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 1.06;
}

.case-intro > p {
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.68);
}

.system-flow {
  margin: 78px 0 42px;
  padding: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
}

.system-flow div {
  padding: 9px 12px;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.75rem;
  white-space: nowrap;
}

.system-flow div span {
  color: var(--leaf);
  font-family: var(--mono);
  font-size: 0.6rem;
}

.system-flow i {
  color: var(--leaf);
  font-style: normal;
}

.case-tabs {
  display: grid;
  grid-template-columns: 0.34fr 1fr;
  border-block: 1px solid rgba(255, 255, 255, 0.14);
}

.tab-list {
  padding: 30px 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.tab-list button {
  padding: 14px 22px;
  border: 0;
  border-left: 3px solid transparent;
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.tab-list button[aria-selected="true"] {
  border-left-color: var(--leaf);
  color: white;
}

.tab-panels {
  min-height: 310px;
  padding: clamp(38px, 6vw, 76px);
}

.tab-panels article {
  animation: panel-in 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

.tab-kicker {
  margin: 0;
  color: var(--leaf);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tab-panels h3 {
  max-width: 720px;
  margin: 16px 0;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.5vw, 3.1rem);
  line-height: 1.25;
}

.tab-panels article > p:last-child {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.68);
}

.product-gallery {
  margin-top: 80px;
  display: grid;
  grid-template-columns: 0.42fr 0.58fr;
  gap: 20px;
  align-items: start;
}

.product-shot {
  margin: 0;
  padding: 18px;
  border-radius: 26px;
  background: var(--paper);
  color: var(--ink);
  transition: transform 0.22s ease;
}

.product-shot:hover {
  transform: translateY(-5px);
}

.shot-label {
  padding-bottom: 14px;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.62rem;
}

.shot-label em {
  color: var(--ink-soft);
  font-style: normal;
}

.product-shot img {
  width: 100%;
  max-height: 660px;
  border: 1px solid var(--line);
  border-radius: 16px;
  object-fit: contain;
  background: white;
}

.product-shot figcaption {
  padding: 15px 4px 2px;
  color: var(--ink-soft);
  font-size: 0.74rem;
}

.boundary-note {
  margin-top: 20px;
  padding: 22px 26px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  color: rgba(255, 255, 255, 0.72);
}

.boundary-note span {
  color: var(--honey);
}

.boundary-note p {
  margin: 0;
}

.boundary-note strong {
  color: white;
}

.evidence {
  background: var(--paper-2);
}

.evidence-intro > p {
  max-width: 420px;
}

.evidence-grid {
  margin-top: 68px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.evidence-card {
  min-height: 350px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-radius: var(--radius);
  background: var(--honey);
}

.evidence-card-green {
  background: var(--green-pop);
}

.evidence-card-coral {
  background: var(--coral);
}

.counter {
  display: block;
  font-family: var(--serif);
  font-size: clamp(5rem, 9vw, 8rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 0.85;
}

.evidence-card h3 {
  margin: 28px 0 8px;
  font-family: var(--serif);
  font-size: 1.5rem;
}

.evidence-card p {
  margin: 0;
  color: rgba(36, 59, 49, 0.75);
  font-size: 0.82rem;
}

.evidence-detail {
  margin-top: 20px;
  padding: 28px 32px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 253, 247, 0.65);
}

.evidence-detail p {
  margin: 0;
}

.method-note {
  margin-top: 10px !important;
  color: var(--ink-soft);
  font-size: 0.75rem;
}

.method-grid {
  margin-top: 68px;
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.method-grid::before {
  content: "";
  position: absolute;
  top: 82px;
  left: 4%;
  right: 4%;
  border-top: 1px solid var(--line);
}

.method-step {
  position: relative;
  padding: 0 20px 20px;
}

.method-step > span {
  color: var(--moss);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.method-dot {
  width: 20px;
  height: 20px;
  margin: 44px 0 32px;
  position: relative;
  z-index: 2;
  border: 5px solid var(--paper);
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 0 1px var(--moss);
}

.method-step:nth-child(2) .method-dot {
  background: var(--honey);
}

.method-step:nth-child(3) .method-dot {
  background: var(--coral);
}

.method-en {
  margin: 0;
  color: var(--moss);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.method-step h3 {
  margin: 8px 0 14px;
  font-family: var(--serif);
  font-size: 1.7rem;
}

.method-step > p:last-child {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.about {
  position: relative;
  overflow: hidden;
  background: var(--leaf);
}

.about-shape {
  position: absolute;
  border-radius: 50%;
  background: var(--leaf-bright);
}

.about-shape-a {
  width: 440px;
  height: 440px;
  top: -260px;
  right: -100px;
}

.about-shape-b {
  width: 180px;
  height: 180px;
  left: -70px;
  bottom: -60px;
  background: var(--honey);
}

.about-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 0.45fr;
  gap: 80px;
  align-items: end;
}

.about-copy h2 {
  max-width: 900px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.7rem, 6vw, 6.2rem);
  line-height: 1.08;
  letter-spacing: -0.06em;
}

.about-copy h2 span {
  position: relative;
  z-index: 0;
}

.about-copy h2 span::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.02em;
  height: 0.18em;
  z-index: -1;
  background: var(--honey);
  transform: rotate(-1deg);
}

.about-copy > p {
  max-width: 720px;
  margin: 34px 0;
  color: rgba(36, 59, 49, 0.78);
  font-size: 1.04rem;
}

.about-copy strong {
  color: var(--ink);
}

.button-dark {
  background: var(--ink);
  color: white;
}

.about-signature {
  padding: 24px;
  border: 1px solid rgba(36, 59, 49, 0.15);
  border-radius: 24px;
  background: rgba(255, 253, 247, 0.58);
  transform: rotate(2deg);
}

.about-signature img {
  width: 150px;
  margin: -70px auto 10px;
}

.about-signature strong,
.about-signature span {
  display: block;
}

.about-signature strong {
  font-family: var(--serif);
  font-size: 1.1rem;
}

.about-signature span {
  margin-top: 6px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.65rem;
}

.site-footer {
  padding: 26px 0;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.62);
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.site-footer p {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.62rem;
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-d1 {
  transition-delay: 0.08s;
}

.reveal-d2 {
  transition-delay: 0.16s;
}

@media (max-width: 1023px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
    gap: 30px;
  }

  .hero h1 {
    font-size: clamp(4rem, 8vw, 6.2rem);
  }

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

  .project-featured {
    grid-template-columns: 1fr 0.75fr;
  }

  .case-intro {
    gap: 40px;
  }

  .system-flow {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .system-flow i {
    display: none;
  }
}

@media (max-width: 900px) {
  html {
    scroll-padding-top: 74px;
  }

  .container,
  .nav-shell,
  .hero-marquee > div {
    width: min(100% - 28px, 1180px);
  }

  .section-pad {
    padding: 76px 0;
  }

  .nav-shell {
    min-height: 68px;
  }

  .menu-button {
    display: block;
  }

  .menu-button[aria-expanded="true"] span:first-child {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] span:last-child {
    transform: translateY(-3px) rotate(-45deg);
  }

  .site-menu {
    position: absolute;
    top: 68px;
    left: 14px;
    right: 14px;
    padding: 22px;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 18px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .site-menu.is-open {
    display: flex;
    animation: menu-in 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  }

  @keyframes menu-in {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
  }

  .site-menu a {
    font-size: 0.92rem;
  }

  .nav-cta {
    text-align: center;
  }

  .hero {
    min-height: auto;
    padding-top: 116px;
    padding-bottom: 0;
  }

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

  .hero h1 {
    font-size: clamp(3.45rem, 17vw, 5.2rem);
    line-height: 1.01;
  }

  .hero-lead {
    margin-top: 26px;
    font-size: 1rem;
  }

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

  .hero-art {
    min-height: 440px;
    margin-top: 16px;
  }

  .hero-art img {
    width: min(390px, 100%);
  }

  .orbit-label-a {
    left: 2%;
  }

  .orbit-label-b {
    right: 0;
  }

  .hero-note {
    right: 2%;
  }

  .hero-marquee {
    margin-top: 26px;
  }

  .hero-marquee > div {
    min-height: 52px;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .hero-marquee span {
    white-space: nowrap;
  }

  .positioning-grid,
  .project-grid,
  .evidence-grid,
  .method-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .positioning-grid {
    margin-top: 46px;
  }

  .positioning-grid::before {
    top: 8%;
    bottom: 8%;
    left: 50px;
    right: auto;
    border-top: 0;
    border-left: 1px dashed rgba(55, 103, 75, 0.28);
  }

  .lens-card {
    min-height: 300px;
  }

  .work-header,
  .evidence-intro {
    align-items: flex-start;
    flex-direction: column;
  }

  .filter-bar {
    width: 100%;
    padding-bottom: 5px;
    overflow-x: auto;
  }

  .project-featured {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .project-card {
    min-height: 360px;
  }

  .project-visual {
    min-height: 350px;
  }

  .case-intro {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .case-intro h2 br {
    display: none;
  }

  .system-flow {
    margin-top: 50px;
  }

  .case-tabs {
    grid-template-columns: 1fr;
  }

  .tab-list {
    padding: 0;
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .tab-list button {
    min-width: max-content;
    border-left: 0;
    border-bottom: 3px solid transparent;
  }

  .tab-list button[aria-selected="true"] {
    border-left-color: transparent;
    border-bottom-color: var(--leaf);
  }

  .tab-panels {
    min-height: 360px;
    padding: 36px 4px;
  }

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

  .evidence-card {
    min-height: 290px;
  }

  .method-grid {
    gap: 0;
  }

  .method-grid::before {
    top: 42px;
    bottom: 44px;
    left: 29px;
    right: auto;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .method-step {
    padding-left: 62px;
  }

  .method-dot {
    position: absolute;
    top: 34px;
    left: 20px;
    margin: 0;
  }

  .about-grid {
    gap: 80px;
  }

  .about-copy h2 br {
    display: none;
  }

  .about-signature {
    max-width: 300px;
  }

  .site-footer .container {
    flex-direction: column;
    gap: 7px;
  }
}

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

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

  .js .hero-enter,
  .js .reveal {
    opacity: 1;
    transform: none;
  }
}