:root {
  --ink: #1b1d22;
  --muted: #5f6470;
  --subtle: #858b96;
  --line: #e2e4e8;
  --paper: #ffffff;
  --soft: #f7f7f6;
  --blue: #4e7890;
  --robot-blue: #c7dbe8;
  --robot-blue-light: #e8f2f7;
  --robot-blue-mid: #a8c4d2;
  --robot-blue-deep: #5e8ba1;
  --robot-blue-wash: #f1f7fa;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 18px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
}

.page-shell,
.nav-shell {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 100;
  padding: 8px 12px;
  color: white;
  background: var(--ink);
  border-radius: 4px;
}

.skip-link:focus {
  top: 12px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(226, 228, 232, 0.92);
  backdrop-filter: blur(12px);
}

.nav-shell {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1;
}

.wordmark:hover,
.wordmark:focus-visible {
  text-decoration: none;
}

.wordmark-bot {
  width: 38px;
  height: 39px;
  flex: 0 0 auto;
  overflow: visible;
  transform-origin: 50% 90%;
  animation: brand-bot-breathe 3.6s ease-in-out infinite;
}

.brand-bot-shadow {
  fill: rgba(49, 68, 77, 0.13);
}

.brand-bot-head,
.brand-bot-base {
  fill: var(--robot-blue);
  stroke: #8eafbe;
  stroke-width: 1.5;
}

.brand-bot-face,
.brand-bot-body {
  fill: #fffefa;
  stroke: #b2c4cb;
  stroke-width: 1.2;
}

.brand-bot-panel {
  fill: var(--robot-blue-mid);
}

.brand-bot-eye {
  fill: #20272b;
  transform-box: fill-box;
  transform-origin: center;
  transform: translateX(var(--brand-eye-x, 0)) scaleY(var(--brand-eye-y, 1));
  transition: transform 150ms cubic-bezier(0.22, 0.8, 0.3, 1);
}

.wordmark-bot.is-looking-left {
  --brand-eye-x: -2px;
}

.wordmark-bot.is-looking-right {
  --brand-eye-x: 2px;
}

.wordmark-bot.is-blinking {
  --brand-eye-y: 0.08;
}

.brand-bot-arm {
  fill: none;
  stroke: #fffefa;
  stroke-width: 6;
  stroke-linecap: round;
  filter: drop-shadow(0 0.6px 0 #aebfc6);
}

.brand-bot-wheel {
  fill: #61747d;
}

@keyframes brand-bot-breathe {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-1.2px) rotate(-0.5deg); }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  color: #3f444d;
  font-size: 0.94rem;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: transparent;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 180ms ease;
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: clip;
  padding: 78px 0 72px;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  gap: 58px;
  align-items: start;
}

.hero > :not(.signal-field):not(.hero-linen-canvas):not(.hero-laundry-loop) {
  position: relative;
  z-index: 1;
}

.hero-linen-canvas {
  position: absolute;
  z-index: 0;
  top: 28px;
  right: -105px;
  width: 890px;
  height: 430px;
  pointer-events: none;
  opacity: 0.78;
  filter: saturate(1.02) contrast(1.02);
  -webkit-mask-image: radial-gradient(ellipse at 60% 43%, #000 0%, rgba(0, 0, 0, 0.9) 52%, transparent 84%);
  mask-image: radial-gradient(ellipse at 60% 43%, #000 0%, rgba(0, 0, 0, 0.9) 52%, transparent 84%);
}

.hero > .hero-laundry-loop {
  position: absolute;
  z-index: 2;
  top: -4px;
  left: -2px;
  width: 320px;
  height: 82px;
  pointer-events: none;
  opacity: 0.94;
}

.hero-laundry-loop svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

.loop-floor {
  fill: none;
  stroke: rgba(94, 139, 161, 0.18);
  stroke-width: 1.2;
  stroke-linecap: round;
}

.folding-table rect {
  fill: rgba(249, 252, 252, 0.96);
  stroke: rgba(94, 139, 161, 0.3);
  stroke-width: 1;
}

.folding-table path {
  fill: none;
  stroke: rgba(94, 139, 161, 0.25);
  stroke-width: 1.3;
  stroke-linecap: round;
}

.loop-robot-shadow {
  fill: rgba(52, 74, 84, 0.1);
}

.loop-robot-base,
.loop-robot-head-ring {
  fill: currentColor;
  stroke: color-mix(in srgb, currentColor 74%, #66808c);
  stroke-width: 0.8;
}

.loop-robot-wheel {
  fill: #53636a;
}

.loop-robot-column {
  fill: #edf1f2;
  stroke: #b9c7cd;
  stroke-width: 0.8;
}

.loop-robot-body,
.loop-robot-face {
  fill: #fffefa;
  stroke: rgba(137, 165, 176, 0.56);
  stroke-width: 0.8;
}

.loop-robot-eye {
  fill: #202629;
}

.courier-arm {
  fill: none;
  stroke: #fffefa;
  stroke-width: 5.5;
  stroke-linecap: round;
  filter: drop-shadow(0 0.5px 0 rgba(120, 148, 158, 0.72));
}

.folder-arm {
  filter: drop-shadow(0 1px 0 rgba(103, 142, 158, 0.28));
}

.folder-joint {
  fill: #f8f9f8;
  stroke: #a8b7bd;
  stroke-width: 0.75;
}

.folder-shoulder-shell {
  fill: #fffefa;
  stroke: #a8b7bd;
  stroke-width: 0.8;
}

.folder-limb {
  stroke-width: 0.75;
}

.folder-limb--upper {
  fill: #fffefa;
  stroke: #a8b7bd;
}

.folder-limb--forearm {
  fill: #fffefa;
  stroke: #a8b7bd;
}

.folder-seam {
  fill: none;
  stroke: rgba(126, 147, 156, 0.48);
  stroke-width: 0.65;
}

.folder-wrist {
  fill: #34434a;
  stroke: #1e292e;
  stroke-width: 0.6;
}

.folder-palm {
  fill: #fdfcf8;
  stroke: #637b85;
  stroke-width: 0.8;
}

.folder-fingers {
  fill: none;
  stroke: #34434a;
  stroke-width: 1.35;
  stroke-linecap: round;
}

.orange-rumple,
.incoming-rumple {
  fill: #f2c59f;
  stroke: rgba(170, 107, 63, 0.35);
  stroke-width: 0.8;
}

.orange-rumple path + path,
.incoming-rumple path + path {
  fill: none;
  stroke: rgba(159, 99, 59, 0.42);
  stroke-linecap: round;
}

.folding-cloth {
  fill: var(--robot-blue-light);
  stroke: rgba(94, 139, 161, 0.34);
  stroke-width: 0.8;
  transform-origin: 180px 61px;
}

.folding-cloth path + path {
  fill: none;
}

.loop-cloth {
  stroke: rgba(94, 139, 161, 0.32);
  stroke-width: 0.7;
}

.loop-cloth--bottom {
  fill: #fbf8f2;
}

.loop-cloth--middle {
  fill: var(--robot-blue-mid);
}

.loop-cloth--top {
  fill: var(--robot-blue-light);
}

.finished-stack path {
  fill: none;
  stroke: rgba(94, 139, 161, 0.52);
  stroke-width: 0.75;
  stroke-linecap: round;
}

.green-stack {
  opacity: 0;
  transform: translateX(-7px);
}

.orange-courier,
.orange-rumple,
.incoming-rumple,
.blue-folder,
.folder-upper,
.folder-forearm,
.folding-cloth,
.finished-stack,
.green-courier,
.green-stack {
  will-change: transform, opacity;
}

.loop-sparkles {
  fill: none;
  stroke: rgba(94, 139, 161, 0.62);
  stroke-width: 1;
  stroke-linecap: round;
  opacity: 0;
}

.orange-courier {
  animation: orange-laundry-run 14s linear infinite;
}

.orange-rumple {
  animation: orange-load-release 14s linear infinite;
}

.incoming-rumple {
  opacity: 0;
  animation: incoming-laundry-cycle 14s linear infinite;
}

.blue-folder {
  animation: folder-body-bob 14s ease-in-out infinite;
}

.folder-arm--left {
  animation: left-shoulder-cycle 14s ease-in-out infinite;
}

.folder-arm--right {
  animation: right-shoulder-cycle 14s ease-in-out infinite;
}

.folder-arm--left .folder-upper {
  transform-origin: 0 0;
  animation: left-upper-cycle 14s ease-in-out infinite;
}

.folder-arm--left .folder-forearm {
  transform-origin: 0 0;
  animation: left-forearm-cycle 14s ease-in-out infinite;
}

.folder-arm--right .folder-upper {
  transform-origin: 0 0;
  animation: right-upper-cycle 14s ease-in-out infinite;
}

.folder-arm--right .folder-forearm {
  transform-origin: 0 0;
  animation: right-forearm-cycle 14s ease-in-out infinite;
}

.folding-cloth {
  opacity: 0;
  animation: cloth-fold-cycle 14s ease-in-out infinite;
}

.finished-stack {
  opacity: 0;
  animation: finished-stack-cycle 14s linear infinite;
}

.green-courier {
  opacity: 0;
  animation: green-laundry-run 14s linear infinite;
}

.green-stack {
  animation: green-load-pickup 14s linear infinite;
}

.loop-sparkles {
  animation: laundry-loop-sparkle 14s ease infinite;
}

@keyframes orange-laundry-run {
  0%, 2% { transform: translateX(-72px); }
  12% { transform: translateX(45px); animation-timing-function: ease-out; }
  19% { transform: translateX(45px); animation-timing-function: ease-in; }
  29%, 100% { transform: translateX(-72px); }
}

@keyframes orange-load-release {
  0%, 15.5% { opacity: 1; transform: translate(0, 0) scale(1); }
  18% { opacity: 0.5; transform: translate(0, 0) scale(1); }
  20%, 100% { opacity: 0; transform: translate(0, 0) scale(1); }
}

@keyframes incoming-laundry-cycle {
  0%, 15.5% { opacity: 0; transform: translate(0, 0) scale(1); }
  18% { opacity: 0.5; transform: translate(0, 0) scale(1); }
  20% { opacity: 1; transform: translate(0, 0) scale(1); animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1); }
  22.5% { opacity: 1; transform: translateX(28px) scale(0.97); }
  25% { opacity: 1; transform: translateX(53px) scale(0.91); }
  27% { opacity: 0.45; transform: translateX(61px) scale(0.86); }
  28%, 100% { opacity: 0; transform: translateX(63px) scale(0.84); }
}

@keyframes folder-body-bob {
  0%, 22%, 30%, 42%, 72%, 100% { transform: translate(180px, 8px); }
  34% { transform: translate(178.5px, 9px) rotate(-1deg); }
  48%, 57%, 66% { transform: translate(180px, 9px); }
  52%, 61% { transform: translate(180px, 7.5px); }
}

@keyframes left-shoulder-cycle {
  0%, 22%, 30%, 42%, 70%, 100% { transform: translate(-12px, 31px); }
  34%, 48%, 56%, 64% { transform: translate(-12px, 32px); }
  52%, 60%, 67% { transform: translate(-12px, 30.5px); }
}

@keyframes left-upper-cycle {
  0%, 22% { transform: rotate(-56deg); }
  26%, 32% { transform: rotate(-20deg); }
  40% { transform: rotate(-36deg); }
  47% { transform: rotate(-50deg); }
  51% { transform: rotate(-30deg); }
  55% { transform: rotate(-46deg); }
  59% { transform: rotate(-27deg); }
  63% { transform: rotate(-43deg); }
  67% { transform: rotate(-34deg); }
  70%, 100% { transform: rotate(-62deg); }
}

@keyframes left-forearm-cycle {
  0%, 22% { transform: translate(-16px, 0) rotate(-105deg); }
  26%, 32% { transform: translate(-16px, 0) rotate(-20deg); }
  40% { transform: translate(-16px, 0) rotate(-118deg); }
  47% { transform: translate(-16px, 0) rotate(-142deg); }
  51% { transform: translate(-16px, 0) rotate(-112deg); }
  55% { transform: translate(-16px, 0) rotate(-138deg); }
  59% { transform: translate(-16px, 0) rotate(-108deg); }
  63% { transform: translate(-16px, 0) rotate(-134deg); }
  67% { transform: translate(-16px, 0) rotate(-116deg); }
  70%, 100% { transform: translate(-16px, 0) rotate(-118deg); }
}

@keyframes right-shoulder-cycle {
  0%, 40%, 70%, 88%, 100% { transform: translate(12px, 31px) scale(-1, 1); }
  47%, 55%, 63%, 76%, 82% { transform: translate(12px, 32px) scale(-1, 1); }
  51%, 59%, 67% { transform: translate(12px, 30.5px) scale(-1, 1); }
}

@keyframes right-upper-cycle {
  0%, 40% { transform: rotate(-62deg); }
  47% { transform: rotate(-30deg); }
  51% { transform: rotate(-50deg); }
  55% { transform: rotate(-27deg); }
  59% { transform: rotate(-46deg); }
  63% { transform: rotate(-34deg); }
  67% { transform: rotate(-43deg); }
  73%, 76% { transform: rotate(-28deg); }
  82%, 84% { transform: rotate(-18deg); }
  88%, 100% { transform: rotate(-62deg); }
}

@keyframes right-forearm-cycle {
  0%, 40% { transform: translate(-16px, 0) rotate(-118deg); }
  47% { transform: translate(-16px, 0) rotate(-112deg); }
  51% { transform: translate(-16px, 0) rotate(-142deg); }
  55% { transform: translate(-16px, 0) rotate(-108deg); }
  59% { transform: translate(-16px, 0) rotate(-138deg); }
  63% { transform: translate(-16px, 0) rotate(-116deg); }
  67% { transform: translate(-16px, 0) rotate(-134deg); }
  73%, 76% { transform: translate(-16px, 0) rotate(-112deg); }
  82%, 84% { transform: translate(-16px, 0) rotate(-22deg); }
  88%, 100% { transform: translate(-16px, 0) rotate(-118deg); }
}

@keyframes cloth-fold-cycle {
  0%, 36% { opacity: 0; transform: scaleX(1.12) rotate(-2deg); }
  39% { opacity: 1; transform: scaleX(1.02) rotate(-1deg); }
  47% { opacity: 1; transform: scaleX(0.8) rotate(1deg); }
  55% { opacity: 1; transform: scaleX(0.58) translateX(8px); }
  62% { opacity: 1; transform: scaleX(0.42) translateX(20px); }
  65% { opacity: 0.3; transform: scaleX(0.37) translateX(26px); }
  66%, 100% { opacity: 0; transform: scaleX(0.36) translateX(28px); }
}

@keyframes finished-stack-cycle {
  0%, 62% { opacity: 0; transform: translate(0, 4px); }
  65% { opacity: 0.7; transform: translate(0, 1px); }
  67%, 78% { opacity: 1; transform: translate(0, 0); }
  79.5% { opacity: 0.45; transform: translate(0, -1px); }
  81%, 100% { opacity: 0; transform: translate(0, -1px); }
}

@keyframes green-laundry-run {
  0%, 70% { opacity: 0; transform: translateX(70px); }
  71.5% { opacity: 1; transform: translateX(54px); animation-timing-function: cubic-bezier(0.22, 0.61, 0.36, 1); }
  77% { opacity: 1; transform: translateX(-72px); }
  82% { opacity: 1; transform: translateX(-72px); animation-timing-function: cubic-bezier(0.55, 0.06, 0.68, 0.19); }
  93% { opacity: 1; transform: translateX(70px); }
  95%, 100% { opacity: 0; transform: translateX(70px); }
}

@keyframes green-load-pickup {
  0%, 78% { opacity: 0; transform: translateX(-7px) translateY(2px); }
  79.5% { opacity: 0.55; transform: translateX(-7px) translateY(0); }
  81%, 93% { opacity: 1; transform: translateX(-7px) translateY(0); }
  95%, 100% { opacity: 0; transform: translateX(-7px) translateY(0); }
}

@keyframes laundry-loop-sparkle {
  0%, 43%, 57%, 65%, 82%, 100% { opacity: 0; transform: scale(0.7); }
  50%, 69% { opacity: 0.78; transform: scale(1.08); }
}

.signal-field {
  position: absolute;
  z-index: 0;
  top: 58px;
  right: -135px;
  width: 700px;
  height: 285px;
  overflow: hidden;
  pointer-events: none;
  opacity: 0.42;
  -webkit-mask-image: radial-gradient(ellipse at 78% 42%, #000 0%, rgba(0, 0, 0, 0.8) 35%, transparent 72%);
  mask-image: radial-gradient(ellipse at 78% 42%, #000 0%, rgba(0, 0, 0, 0.8) 35%, transparent 72%);
}

.signal-field canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.signal-field-fallback {
  background: radial-gradient(ellipse at 65% 50%, rgba(94, 139, 161, 0.13), transparent 68%);
}

.portrait-wrap {
  position: relative;
  overflow: hidden;
  background: #faf9f7;
  border-radius: 8px;
  box-shadow: 0 8px 28px rgba(22, 27, 36, 0.065);
}

.portrait-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: rgba(255, 252, 248, 0.035);
}

.portrait {
  width: 100%;
  height: 338px;
  display: block;
  object-fit: cover;
  object-position: center 24%;
  filter: saturate(0.94) contrast(0.97);
}

.hero h1 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.08em 0.26em;
  margin-bottom: 4px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.4rem, 6vw, 5rem);
  font-weight: 500;
  letter-spacing: -0.035em;
}

.cn-name {
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 0.51em;
  font-weight: 400;
  letter-spacing: 0.015em;
  white-space: nowrap;
}

.role {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 1.18rem;
}

.hero-copy > p:not(.role) {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: 1.03rem;
}

.profile-links {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  font-size: 0.94rem;
  font-weight: 600;
}

.profile-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 8px 5px 6px;
  border-radius: 7px;
  line-height: 1.25;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.profile-link:hover,
.profile-link:focus-visible {
  color: #365e72;
  background: rgba(94, 139, 161, 0.09);
  text-decoration: none;
  transform: translateY(-1px);
}

.profile-icon {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
  opacity: 0.84;
}

.icon-stroke {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-fill {
  fill: currentColor;
}

.section {
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.section > h2,
.section-intro h2 {
  margin-bottom: 32px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.28rem;
  font-weight: 500;
}

.research-summary {
  max-width: 900px;
  margin-bottom: 30px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.48rem;
  line-height: 1.52;
}

#research {
  --towel-lift-x: 0deg;
  --towel-lift-y: 0deg;
  --towel-corner-lift: 0px;
  position: relative;
  isolation: isolate;
  margin: 10px 0 18px;
  padding: 70px 44px 66px;
  overflow: hidden;
  border-top: 0;
  border-radius: 24px;
  perspective: 1100px;
}

#research > :not(.research-textile) {
  position: relative;
  z-index: 1;
}

.research-textile {
  position: absolute;
  z-index: 0;
  inset: 16px 0;
  overflow: hidden;
  border: 1px solid rgba(94, 139, 161, 0.17);
  border-radius: 24px 26px 34px 22px;
  background:
    repeating-linear-gradient(90deg, transparent 0 4px, rgba(82, 126, 147, 0.032) 4px 5px),
    repeating-linear-gradient(0deg, transparent 0 4px, rgba(255, 255, 255, 0.46) 4px 5px),
    linear-gradient(124deg, #fcfefe 0%, #f3f9fb 54%, #e9f3f7 100%);
  box-shadow:
    0 22px 58px rgba(58, 79, 89, 0.075),
    inset 0 1px rgba(255, 255, 255, 0.92);
}

.research-textile::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 82% 12%, rgba(255, 255, 255, 0.92), transparent 25%),
    linear-gradient(108deg, rgba(255, 255, 255, 0.46), transparent 44%);
}

.research-textile__weave {
  position: absolute;
  inset: 13px;
  border: 1px dashed rgba(94, 139, 161, 0.075);
  border-radius: 17px 20px 28px 16px;
}

.research-textile__band {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12%;
  height: 8%;
  min-height: 34px;
  border-block: 1px solid rgba(94, 139, 161, 0.095);
  background: rgba(199, 219, 232, 0.16);
}

.research-textile__fold {
  position: absolute;
  top: -1px;
  right: -1px;
  width: 116px;
  aspect-ratio: 1;
  border-radius: 0 26px 0 100%;
  background:
    repeating-linear-gradient(90deg, transparent 0 4px, rgba(78, 120, 144, 0.025) 4px 5px),
    repeating-linear-gradient(0deg, transparent 0 4px, rgba(255, 255, 255, 0.34) 4px 5px),
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(205, 228, 239, 0.94)),
    var(--robot-blue-light);
  box-shadow: -13px 17px 30px rgba(63, 97, 113, 0.17);
  transform:
    translate3d(calc(var(--towel-corner-lift) * -0.18), calc(var(--towel-corner-lift) * -0.52), 24px)
    rotateX(var(--towel-lift-x))
    rotateY(var(--towel-lift-y));
  transform-origin: top right;
  transition: transform 95ms linear, box-shadow 220ms ease;
}

.research-textile__fold::after {
  content: "";
  position: absolute;
  inset: 14px 12px auto auto;
  width: 42%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(94, 139, 161, 0.19));
  transform: rotate(45deg);
  transform-origin: right;
}

.research-textile__label {
  position: absolute;
  right: 32px;
  bottom: 26px;
  color: rgba(78, 120, 144, 0.48);
  font: 700 10px/1 Georgia, "Times New Roman", serif;
  letter-spacing: 0.18em;
}

.research-lines {
  margin: 0;
  border-top: 1px solid var(--line);
}

.research-lines > div {
  padding: 18px 0;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.research-lines dt,
.research-lines dd {
  margin: 0;
  font-size: 1rem;
}

.research-lines dt {
  font-weight: 700;
}

.research-lines dd {
  color: var(--muted);
}

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

.keyword::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -0.04em;
  right: -0.04em;
  bottom: 0.04em;
  height: 0.28em;
  background: #dce8f7;
  border-radius: 999px;
  transform: rotate(-1.2deg) scaleX(0);
  transform-origin: left center;
  transition: transform 680ms cubic-bezier(0.22, 1, 0.36, 1);
}

#research.is-visible .keyword::after {
  transform: rotate(-1.2deg) scaleX(1);
}

#research.is-visible .keyword:nth-of-type(2)::after {
  transition-delay: 100ms;
}

#research.is-visible .keyword:nth-of-type(3)::after {
  transition-delay: 200ms;
}

.marked-term {
  color: var(--ink);
  background-image: linear-gradient(#94acd0, #94acd0);
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0 1.5px;
  transition: background-size 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

#research.is-visible .marked-term {
  background-size: 100% 1.5px;
}

.news-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  padding: 15px 0;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  border-top: 1px solid var(--line);
}

.news-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.news-list time {
  color: var(--blue);
  font-size: 0.88rem;
  font-weight: 700;
}

.news-list p {
  margin: 0;
  font-size: 1rem;
}

.publication-group + .publication-group {
  margin-top: 50px;
}

.group-heading {
  margin-bottom: 6px;
}

.group-heading p {
  margin-bottom: 5px;
  color: var(--subtle);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.group-heading h3 {
  margin-bottom: 20px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.82rem;
  font-weight: 500;
}

.publication {
  padding: 24px 0;
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
  border-top: 1px solid var(--line);
}

.publication:last-child {
  border-bottom: 1px solid var(--line);
}

.paper-status {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-style: italic;
}

.paper-demo {
  --pointer-x: 50%;
  --pointer-y: 50%;
  position: relative;
  aspect-ratio: 16 / 9;
  margin: 0;
  overflow: hidden;
  border: 1px solid #dfe4ea;
  border-radius: 8px;
  background:
    radial-gradient(circle at var(--pointer-x) var(--pointer-y), rgba(85, 126, 178, 0.13), transparent 34%),
    linear-gradient(145deg, #fbfcfd 0%, #f3f6f8 100%);
  transform: perspective(700px) rotateX(var(--tilt-y, 0deg)) rotateY(var(--tilt-x, 0deg));
  transform-style: preserve-3d;
  transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1), border-color 260ms ease;
}

.paper-demo::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(51, 85, 126, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51, 85, 126, 0.1) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(135deg, #000, transparent 72%);
  mask-image: linear-gradient(135deg, #000, transparent 72%);
}

.paper-demo.has-media::before {
  z-index: 1;
  opacity: 0;
}

.paper-demo.has-media::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 48% 0 0;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgba(10, 19, 27, 0.56));
}

.paper-demo:hover {
  border-color: #c8d4e2;
}

.paper-demo img,
.paper-demo video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.paper-demo video {
  background: #eef3f6;
}

.paper-demo figcaption {
  position: absolute;
  z-index: 2;
  left: 14px;
  right: 14px;
  bottom: 11px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  color: #536172;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.paper-demo.has-media figcaption {
  color: rgba(255, 255, 255, 0.96);
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.42);
}

.paper-demo figcaption small {
  color: #8b95a0;
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.paper-demo.has-media figcaption small {
  color: rgba(255, 255, 255, 0.76);
}

.demo-signal {
  position: absolute;
  inset: 12px 12px 30px;
}

.demo-signal::before,
.demo-signal::after {
  content: "";
  position: absolute;
  left: 9%;
  top: 50%;
  width: 82%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(94, 139, 161, 0.42), transparent);
  transform-origin: center;
}

.demo-signal::before {
  transform: rotate(9deg);
}

.demo-signal::after {
  transform: rotate(-13deg);
}

.demo-signal i {
  position: absolute;
  width: 7px;
  height: 7px;
  border: 1px solid rgba(94, 139, 161, 0.58);
  border-radius: 50%;
  background: #f9fbfc;
  box-shadow: 0 0 0 5px rgba(94, 139, 161, 0.06);
  animation: signal-drift 5.8s ease-in-out infinite alternate;
}

.demo-signal i:nth-child(1) {
  left: 14%;
  top: 58%;
}

.demo-signal i:nth-child(2) {
  left: 49%;
  top: 32%;
  animation-delay: -2.1s;
}

.demo-signal i:nth-child(3) {
  right: 12%;
  top: 53%;
  animation-delay: -3.8s;
}

@keyframes signal-drift {
  from { transform: translate3d(-2px, 3px, 0) scale(0.9); opacity: 0.55; }
  to { transform: translate3d(4px, -4px, 0) scale(1.08); opacity: 1; }
}

.publication.reveal-ready {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 540ms ease, transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

.publication-copy h4 {
  max-width: 780px;
  margin-bottom: 6px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.24rem;
  font-weight: 600;
}

.publication-copy p {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.96rem;
}

.publication-copy .authors {
  margin-bottom: 3px;
  color: #454a53;
  font-size: 0.91rem;
}

.paper-links {
  margin-top: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.94rem;
  font-weight: 700;
}

.paper-links > * + *::before {
  content: "·";
  margin-right: 14px;
  color: #b1b5bc;
  text-decoration: none;
}

.reserved-link {
  color: #737984;
  font-weight: 500;
}

.reserved-link small {
  color: #a0a5ad;
  font-size: 0.7em;
  font-weight: 400;
}

.contact p {
  max-width: 640px;
  color: var(--muted);
}

.contact > a {
  font-weight: 700;
}

/* A small domestic-robot story that doubles as the page scroll indicator. */
.laundry-progress {
  position: fixed;
  right: 22px;
  bottom: 18px;
  z-index: 18;
  width: 318px;
  height: 94px;
  padding: 8px 10px 7px;
  pointer-events: none;
  opacity: 0;
  transform: translateY(10px) scale(0.985);
  transition: opacity 320ms ease, transform 420ms cubic-bezier(0.2, 0.72, 0.24, 1);
}

.laundry-progress::before {
  content: "";
  position: absolute;
  inset: 10px 2px 1px;
  border: 1px solid rgba(117, 143, 156, 0.16);
  border-radius: 25px;
  background:
    linear-gradient(112deg, rgba(255, 255, 255, 0.89), rgba(241, 247, 250, 0.78)),
    rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 34px rgba(53, 72, 83, 0.09);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.laundry-progress.is-active {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.laundry-progress__track {
  position: relative;
  width: 100%;
  height: 100%;
}

.laundry-progress__track::before,
.laundry-progress__fill {
  position: absolute;
  left: 16px;
  right: 57px;
  bottom: 19px;
  height: 1.5px;
  border-radius: 999px;
  content: "";
}

.laundry-progress__track::before {
  background: rgba(94, 139, 161, 0.18);
}

.laundry-progress__fill {
  background: linear-gradient(90deg, var(--robot-blue-mid), var(--robot-blue-deep));
  box-shadow: 0 0 9px rgba(94, 139, 161, 0.16);
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

.laundry-progress__track::after {
  position: absolute;
  left: 15px;
  bottom: 16.5px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--robot-blue-mid);
  box-shadow: 0 0 0 4px rgba(199, 219, 232, 0.18);
  content: "";
}

.laundry-robot {
  position: absolute;
  left: 0;
  bottom: 7px;
  z-index: 2;
  width: 72px;
  height: 68px;
  will-change: transform;
}

.laundry-robot__bob {
  width: 100%;
  height: 100%;
  transform-origin: 50% 88%;
}

.laundry-progress.is-moving .laundry-robot__bob {
  animation: robot-delivery-bob 580ms ease-in-out infinite alternate;
}

.laundry-robot svg,
.laundry-wardrobe svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.robot-ground-shadow,
.wardrobe-shadow {
  fill: rgba(51, 70, 80, 0.12);
}

.robot-base {
  fill: var(--robot-blue);
  stroke: var(--robot-blue-mid);
  stroke-width: 1.2;
}

.robot-wheel {
  fill: #52626b;
}

.robot-column {
  fill: #eef1f2;
  stroke: #b7c3c8;
  stroke-width: 1;
}

.robot-body {
  fill: #fffefb;
  stroke: #cbd4d8;
  stroke-width: 1.15;
}

.robot-head-ring {
  fill: var(--robot-blue);
  stroke: var(--robot-blue-mid);
  stroke-width: 1;
}

.robot-face {
  fill: #fffefa;
  stroke: rgba(168, 196, 210, 0.72);
  stroke-width: 0.8;
}

.robot-eye {
  fill: #1f2529;
}

.robot-arm {
  fill: none;
  stroke: #fdfdfb;
  stroke-width: 7;
  stroke-linecap: round;
  filter: drop-shadow(0 0.5px 0 #bfcbd0);
}

.laundry-stack {
  transform-origin: 47px 54px;
  transition: opacity 240ms ease, transform 360ms ease;
}

.cloth,
.stored-cloth {
  stroke: rgba(94, 139, 161, 0.24);
  stroke-width: 0.7;
}

.cloth--bottom,
.stored-cloth--bottom {
  fill: #f8f5ef;
}

.cloth--middle,
.stored-cloth--middle {
  fill: var(--robot-blue-mid);
}

.cloth--top,
.stored-cloth--top {
  fill: var(--robot-blue-light);
}

.cloth-fold {
  fill: none;
  stroke: rgba(94, 139, 161, 0.56);
  stroke-width: 0.8;
  stroke-linecap: round;
}

.laundry-wardrobe {
  position: absolute;
  right: 1px;
  bottom: 4px;
  z-index: 3;
  width: 62px;
  height: 78px;
}

.wardrobe-frame {
  fill: #eef4f6;
  stroke: #b9c9d0;
  stroke-width: 1.2;
}

.wardrobe-inside {
  fill: #fbfcfc;
}

.wardrobe-shelf {
  fill: none;
  stroke: #cbd7dc;
  stroke-width: 1.2;
}

.wardrobe-door {
  fill: #fffefa;
  stroke: #b9c9d0;
  stroke-width: 1.1;
  transition: transform 430ms cubic-bezier(0.25, 0.7, 0.2, 1);
}

.wardrobe-door--left {
  transform-box: fill-box;
  transform-origin: left center;
}

.wardrobe-door--right {
  transform-box: fill-box;
  transform-origin: right center;
}

.wardrobe-knob {
  fill: var(--robot-blue-deep);
  transition: opacity 180ms ease;
}

.wardrobe-clothes {
  opacity: 0;
  transform: translateY(3px);
  transform-origin: center;
  transition: opacity 260ms ease 100ms, transform 360ms ease 80ms;
}

.delivery-sparkles {
  opacity: 0;
  fill: none;
  stroke: var(--robot-blue-deep);
  stroke-width: 1.2;
  stroke-linecap: round;
  transform-origin: center;
}

.laundry-progress.is-near .wardrobe-door--left {
  transform: translateX(-2px) scaleX(0.78);
}

.laundry-progress.is-near .wardrobe-door--right {
  transform: translateX(2px) scaleX(0.78);
}

.laundry-progress.is-near .wardrobe-knob {
  opacity: 0;
}

.laundry-progress.is-delivered .laundry-stack {
  opacity: 0;
  transform: translate(13px, -1px) scale(0.78);
}

.laundry-progress.is-delivered .wardrobe-door--left {
  transform: translateX(-5px) scaleX(0.4);
}

.laundry-progress.is-delivered .wardrobe-door--right {
  transform: translateX(5px) scaleX(0.4);
}

.laundry-progress.is-delivered .wardrobe-clothes {
  opacity: 1;
  transform: translateY(0);
}

.laundry-progress.is-complete .wardrobe-door--left,
.laundry-progress.is-complete .wardrobe-door--right {
  transform: translateX(0) scaleX(1);
  transition-delay: 240ms;
}

.laundry-progress.is-complete .delivery-sparkles {
  animation: delivery-sparkle 900ms ease 360ms both;
}

@keyframes robot-delivery-bob {
  from { transform: translateY(0) rotate(-0.7deg); }
  to { transform: translateY(-1.8px) rotate(0.7deg); }
}

@keyframes delivery-sparkle {
  0% { opacity: 0; transform: scale(0.65); }
  42% { opacity: 0.85; transform: scale(1.08); }
  100% { opacity: 0; transform: scale(1.25); }
}

.site-footer {
  padding: 24px 0 32px;
  color: var(--subtle);
  background: var(--soft);
  font-size: 0.78rem;
}

.site-footer .page-shell {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
  }

  .nav-toggle[aria-expanded="true"] span:not(.sr-only):nth-child(2) {
    transform: translateY(3.5px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:not(.sr-only):nth-child(3) {
    transform: translateY(-3.5px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    padding: 18px 20px;
    display: none;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    background: white;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 28px rgba(21, 26, 34, 0.08);
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero {
    padding-top: 104px;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 28px;
  }

  .hero > .hero-laundry-loop {
    top: 5px;
    left: 0;
    width: 286px;
    height: 74px;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  .signal-field {
    right: -250px;
    opacity: 0.56;
  }

  .hero-linen-canvas {
    right: -265px;
    width: 760px;
    opacity: 0.67;
  }

  .portrait {
    height: 188px;
  }

  .publication {
    grid-template-columns: 185px minmax(0, 1fr);
    gap: 20px;
  }

}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

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

  .hero > .hero-laundry-loop {
    top: 8px;
    width: min(286px, 86vw);
  }

  .signal-field {
    display: none;
  }

  .hero-linen-canvas {
    top: 175px;
    right: -190px;
    width: 620px;
    height: 410px;
    opacity: 0.58;
  }

  .portrait-wrap {
    width: 170px;
  }

  .portrait {
    height: 213px;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .cn-name {
    font-size: 0.48em;
  }

  .news-list li {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .research-lines > div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  #research {
    margin-top: 4px;
    padding: 58px 20px 54px;
    border-radius: 20px;
  }

  .research-textile {
    inset: 12px 0;
    border-radius: 20px 22px 28px 18px;
  }

  .research-textile__fold {
    width: 78px;
  }

  .research-textile__label {
    right: 22px;
    bottom: 20px;
  }

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

  .paper-demo {
    width: min(100%, 360px);
  }

  .site-footer .page-shell {
    flex-direction: column;
    gap: 3px;
  }

  .laundry-progress {
    right: 8px;
    bottom: 8px;
    width: 244px;
    height: 76px;
    transform-origin: right bottom;
  }

  .laundry-progress::before {
    inset: 9px 2px 1px;
    border-radius: 21px;
  }

  .laundry-progress__track::before,
  .laundry-progress__fill {
    right: 47px;
    bottom: 15px;
  }

  .laundry-progress__track::after {
    bottom: 12.5px;
  }

  .laundry-robot {
    bottom: 4px;
    width: 59px;
    height: 57px;
  }

  .laundry-wardrobe {
    width: 50px;
    height: 64px;
  }
}

@media (max-width: 420px) {
  .page-shell,
  .nav-shell {
    width: min(calc(100% - 28px), var(--max-width));
  }

}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .keyword::after {
    transform: rotate(-1.2deg) scaleX(1);
  }

  .marked-term {
    background-size: 100% 1.5px;
  }

  .laundry-progress {
    display: none;
  }

  .research-textile__fold {
    transform: none;
  }

  .hero-laundry-loop {
    display: none;
  }
}