:root {
  color-scheme: light;
  --paper: #f2efe8;
  --paper-bright: #fbf8f1;
  --ink: #111111;
  --muted: #57544f;
  --cobalt: #4b38ff;
  --cobalt-dark: #2818d8;
  --coral: #ff5e78;
  --burgundy: #4e0b18;
  --night: #090a0d;
  --night-soft: #11131a;
  --electric: #2d7dff;
  --white: #f7f7f4;
  --header-height: 88px;
  --page-gutter: clamp(20px, 3vw, 48px);
  --content-width: 1504px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  content: "";
  opacity: 0.14;
  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='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.26'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

body[data-dialog-open="true"] {
  overflow: hidden;
}

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

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

button {
  margin: 0;
  border: 0;
  color: inherit;
  font: inherit;
}

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

svg {
  display: block;
  width: 1em;
  height: 1em;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-height);
  color: var(--ink);
  background: rgba(242, 239, 232, 0.94);
  transition:
    color 260ms ease,
    background-color 260ms ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.topbar::after {
  position: absolute;
  right: var(--page-gutter);
  bottom: 0;
  left: var(--page-gutter);
  height: 1px;
  background: currentColor;
  content: "";
  opacity: 0.92;
}

body[data-active-section="zhiqi"] .topbar {
  color: var(--burgundy);
  background: rgba(255, 94, 120, 0.94);
}

body[data-active-section="envpilot"] .topbar {
  color: var(--white);
  background: rgba(9, 10, 13, 0.94);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, calc(var(--content-width) + var(--page-gutter) * 2));
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--page-gutter);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(22px, 2vw, 34px);
  line-height: 0.84;
  letter-spacing: -0.035em;
  text-transform: uppercase;
}

.brand span:last-child {
  display: block;
}

.project-nav {
  display: flex;
  align-self: stretch;
  gap: clamp(8px, 3vw, 52px);
}

.project-nav a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 104px;
  padding: 3px 4px 0;
  font-size: 15px;
  font-weight: 650;
  transition: color 180ms ease;
}

.project-nav a::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 4px;
  background: var(--cobalt);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.project-nav a.is-active::after {
  transform: scaleX(1);
}

body[data-active-section="zhiqi"] .project-nav a::after {
  background: var(--burgundy);
}

body[data-active-section="envpilot"] .project-nav a::after {
  background: var(--electric);
}

.nav-index {
  font-variant-numeric: tabular-nums;
}

.project-screen {
  position: relative;
  min-height: 100svh;
  padding: calc(var(--header-height) + 24px) var(--page-gutter) 30px;
  overflow: hidden;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}

.project-screen::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 14px;
  content: "";
}

.section-jiandou {
  background: var(--paper);
}

.section-jiandou::after {
  background: var(--coral);
}

.section-zhiqi {
  color: var(--burgundy);
  background: var(--coral);
}

.section-zhiqi::after {
  background: #07152f;
}

.section-envpilot {
  color: var(--white);
  background: var(--night);
}

.section-frame {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto auto;
  gap: 14px;
  width: min(100%, var(--content-width));
  min-height: calc(100svh - var(--header-height) - 68px);
  margin: 0 auto;
}

.project-grid {
  display: grid;
  min-height: 0;
  align-items: center;
}

.jiandou-grid {
  grid-template-columns: minmax(360px, 0.76fr) minmax(520px, 1.24fr);
  gap: clamp(34px, 4.5vw, 76px);
}

.zhiqi-grid {
  grid-template-columns: minmax(520px, 1.06fr) minmax(360px, 0.94fr);
  gap: clamp(30px, 4vw, 68px);
}

.envpilot-grid {
  grid-template-columns: minmax(600px, 1.25fr) minmax(360px, 0.75fr);
  gap: clamp(34px, 5vw, 80px);
}

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

.display-lockup {
  margin-bottom: 24px;
}

.project-number {
  display: block;
  margin: 0;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(116px, 12vw, 205px);
  font-weight: 900;
  line-height: 0.72;
  letter-spacing: -0.055em;
  font-variant-numeric: tabular-nums;
}

.project-name {
  margin: 22px 0 0;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", "PingFang SC", sans-serif;
  font-size: clamp(62px, 7vw, 114px);
  font-weight: 900;
  line-height: 0.88;
  letter-spacing: -0.045em;
}

.project-headline {
  max-width: 680px;
  margin: 0 0 18px;
  padding-top: 26px;
  border-top: 12px solid currentColor;
  font-size: clamp(30px, 3vw, 49px);
  font-weight: 830;
  line-height: 1.16;
  letter-spacing: -0.04em;
}

.section-jiandou .project-headline {
  border-color: var(--cobalt);
}

.project-lede {
  max-width: 660px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 1.25vw, 20px);
  line-height: 1.8;
}

.section-zhiqi .project-lede {
  color: #642733;
}

.section-envpilot .project-lede {
  color: #c4c6cc;
}

.feature-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(22px, 3.4vh, 42px);
  border-top: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
}

.feature-item {
  display: flex;
  min-width: 0;
  min-height: 84px;
  padding: 16px 8px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 9px;
  text-align: center;
  font-size: 13px;
  font-weight: 680;
  line-height: 1.25;
}

.feature-item + .feature-item {
  border-left: 1px solid currentColor;
}

.feature-item svg {
  width: 28px;
  height: 28px;
  stroke-width: 1.55;
}

.media-stage {
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 0;
  place-items: center;
  perspective: 1200px;
}

.jiandou-stage {
  align-self: stretch;
  min-height: 520px;
}

.stage-block {
  position: absolute;
  inset: 4% -6% 1% 7%;
  background: var(--cobalt);
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%, 0 22%);
}

.product-window,
.phone-shell {
  position: relative;
  z-index: 2;
  display: block;
  padding: 0;
  cursor: zoom-in;
  background: transparent;
  transform: translate3d(var(--px, 0), var(--py, 0), 0);
  transition:
    transform 260ms cubic-bezier(0.2, 0.7, 0.2, 1),
    box-shadow 200ms ease;
}

.product-window:focus-visible,
.phone-shell:focus-visible,
.action:focus-visible,
.project-nav a:focus-visible,
.brand:focus-visible,
.dialog-close:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 5px;
}

.product-window:hover,
.phone-shell:hover {
  transform: translate3d(var(--px, 0), calc(var(--py, 0) - 5px), 0);
}

.product-window-dark {
  width: min(100%, 900px);
  overflow: hidden;
  border: 8px solid var(--ink);
  border-radius: 3px;
  background: var(--ink);
  box-shadow: 18px 22px 0 rgba(17, 17, 17, 0.18);
}

.window-bar {
  display: grid;
  grid-template-columns: 9px 9px 9px 1fr auto;
  gap: 8px;
  align-items: center;
  height: 34px;
  padding: 0 12px;
  color: var(--white);
  background: var(--ink);
}

.window-bar > span {
  width: 9px;
  height: 9px;
  border: 1px solid var(--white);
  border-radius: 50%;
}

.window-bar strong {
  padding-left: 8px;
  text-align: left;
  font-size: 10px;
  font-weight: 680;
  letter-spacing: 0.12em;
}

.window-bar svg {
  width: 14px;
  height: 14px;
}

.product-window-dark img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  object-position: top left;
}

.zhiqi-dossier {
  align-self: center;
  padding: clamp(28px, 3.5vw, 58px);
  border: 2px solid var(--burgundy);
  background: var(--paper-bright);
  box-shadow: 14px 14px 0 var(--burgundy);
}

.zhiqi-dossier .project-number {
  font-size: clamp(92px, 9vw, 150px);
  line-height: 0.8;
}

.zhiqi-dossier .project-name {
  margin-top: 20px;
  font-family:
    "Arial Narrow", "Avenir Next Condensed", "PingFang SC", sans-serif;
  font-size: clamp(52px, 5.5vw, 88px);
  line-height: 1;
}

.zhiqi-dossier .project-headline {
  margin-top: 26px;
  padding-top: 26px;
  border-top-width: 2px;
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(34px, 3.5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.035em;
}

.zhiqi-stage {
  align-self: stretch;
  min-height: 540px;
}

.backdrop-number {
  position: absolute;
  right: -4%;
  bottom: -2%;
  z-index: 0;
  color: var(--burgundy);
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(290px, 35vw, 520px);
  line-height: 0.72;
  letter-spacing: -0.08em;
  opacity: 0.88;
}

.phone-shell {
  width: min(340px, 27vw);
  padding: 9px;
  border: 2px solid #060606;
  border-radius: 48px;
  background: #080808;
  box-shadow:
    0 28px 62px rgba(78, 11, 24, 0.34),
    12px 12px 0 rgba(78, 11, 24, 0.68);
}

.phone-shell img {
  width: 100%;
  max-height: min(66vh, 680px);
  border-radius: 38px;
  object-fit: cover;
  object-position: top;
}

.phone-expand,
.window-expand {
  position: absolute;
  right: 16px;
  bottom: 16px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid currentColor;
  background: var(--paper-bright);
  color: var(--ink);
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.product-window:hover .window-expand,
.phone-shell:hover .phone-expand,
.product-window:focus-visible .window-expand,
.phone-shell:focus-visible .phone-expand {
  opacity: 1;
  transform: translateY(0);
}

.phone-expand svg,
.window-expand svg {
  width: 18px;
  height: 18px;
}

.envpilot-stage {
  min-height: 510px;
}

.runtime-line {
  position: absolute;
  right: -11%;
  z-index: 0;
  width: 32%;
  height: 2px;
  background: var(--electric);
}

.runtime-line::after {
  position: absolute;
  top: -6px;
  right: 0;
  width: 14px;
  height: 14px;
  background: var(--electric);
  content: "";
}

.product-window-light {
  width: min(100%, 960px);
  overflow: hidden;
  border: 1px solid #aeb2ba;
  border-radius: 10px;
  background: #fff;
  box-shadow:
    0 32px 70px rgba(0, 0, 0, 0.46),
    10px 10px 0 rgba(45, 125, 255, 0.24);
}

.product-window-light img {
  width: 100%;
  max-height: min(62vh, 660px);
  object-fit: contain;
}

.envpilot-copy .project-number {
  color: var(--white);
  font-size: clamp(140px, 15vw, 250px);
}

.envpilot-copy .project-name {
  margin-top: 28px;
  font-family: "Arial Narrow", "Avenir Next Condensed", sans-serif;
  font-size: clamp(58px, 6.4vw, 100px);
  letter-spacing: -0.055em;
}

.envpilot-copy .project-headline {
  margin-top: 26px;
  padding-top: 0;
  border: 0;
  font-size: clamp(32px, 3vw, 48px);
}

.envpilot-copy .project-headline span {
  color: var(--electric);
}

.runtime-list {
  display: grid;
  margin-top: 24px;
  color: var(--electric);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: clamp(15px, 1.5vw, 21px);
  font-weight: 700;
}

.runtime-list span {
  padding: 8px 0;
  border-bottom: 1px solid rgba(45, 125, 255, 0.56);
}

.action-rail {
  display: flex;
  min-height: 68px;
  align-items: stretch;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 620;
}

.project-meta span {
  opacity: 0.5;
}

.project-actions {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.action {
  display: inline-flex;
  min-width: 190px;
  min-height: 58px;
  padding: 14px 22px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 730;
  line-height: 1.2;
  transition:
    background-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.action svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

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

.action-primary {
  color: #fff;
  background: var(--cobalt);
}

.action-primary:hover {
  background: var(--cobalt-dark);
}

.section-envpilot .action-primary {
  background: var(--electric);
}

.action-outline {
  border-right: 1px solid currentColor;
  border-left: 1px solid currentColor;
  background: transparent;
}

.action-outline:hover,
.action-quiet:hover {
  color: var(--paper-bright);
  background: var(--ink);
}

.section-zhiqi .action-outline:hover,
.section-zhiqi .action-quiet:hover {
  color: var(--paper-bright);
  background: var(--burgundy);
}

.section-envpilot .action-outline:hover,
.section-envpilot .action-quiet:hover {
  color: var(--night);
  background: var(--white);
}

.action-quiet {
  min-width: 170px;
  background: transparent;
}

.section-progress {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  min-height: 22px;
  align-items: center;
  font-size: 12px;
  font-weight: 680;
}

.section-progress span {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
  opacity: 0.32;
}

.section-progress span.is-current {
  opacity: 1;
}

.section-progress b {
  font-weight: 760;
}

.section-progress i {
  display: block;
  height: 3px;
  background: currentColor;
}

.section-jiandou .section-progress .is-current {
  color: var(--cobalt);
}

.section-envpilot .section-progress .is-current {
  color: var(--electric);
}

.media-dialog {
  width: min(94vw, 1540px);
  max-width: none;
  max-height: 92vh;
  margin: auto;
  padding: 0;
  overflow: visible;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 0;
  background: var(--night);
  color: var(--white);
  box-shadow: 0 30px 120px rgba(0, 0, 0, 0.7);
}

.media-dialog::backdrop {
  background: rgba(4, 5, 8, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.media-dialog[open] {
  animation: dialog-in 220ms ease-out both;
}

.media-dialog figure {
  display: grid;
  max-height: 92vh;
  margin: 0;
  grid-template-rows: minmax(0, 1fr) auto;
}

.media-dialog img {
  width: 100%;
  max-height: calc(92vh - 54px);
  object-fit: contain;
  background: #050609;
}

.media-dialog figcaption {
  min-height: 54px;
  padding: 16px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.dialog-close {
  position: absolute;
  top: -48px;
  right: 0;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  cursor: pointer;
  color: var(--white);
  background: transparent;
}

.dialog-close svg {
  width: 24px;
  height: 24px;
}

@keyframes dialog-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 1180px) {
  :root {
    --header-height: 78px;
  }

  .project-screen {
    padding-top: calc(var(--header-height) + 20px);
  }

  .jiandou-grid {
    grid-template-columns: minmax(330px, 0.82fr) minmax(460px, 1.18fr);
    gap: 32px;
  }

  .zhiqi-grid {
    grid-template-columns: minmax(470px, 1.1fr) minmax(320px, 0.9fr);
    gap: 28px;
  }

  .envpilot-grid {
    grid-template-columns: minmax(500px, 1.2fr) minmax(320px, 0.8fr);
    gap: 32px;
  }

  .project-number {
    font-size: clamp(104px, 11vw, 160px);
  }

  .project-name {
    font-size: clamp(58px, 6.7vw, 90px);
  }

  .project-headline {
    border-top-width: 8px;
    font-size: clamp(28px, 2.8vw, 40px);
  }

  .project-lede {
    font-size: 15px;
    line-height: 1.65;
  }

  .feature-item {
    min-height: 72px;
    font-size: 11px;
  }

  .feature-item svg {
    width: 24px;
    height: 24px;
  }

  .jiandou-stage,
  .zhiqi-stage,
  .envpilot-stage {
    min-height: 430px;
  }
}

@media (max-height: 820px) and (min-width: 901px) {
  :root {
    --header-height: 72px;
  }

  .project-screen {
    padding-top: calc(var(--header-height) + 12px);
    padding-bottom: 16px;
  }

  .section-frame {
    min-height: calc(100svh - var(--header-height) - 28px);
    gap: 8px;
  }

  .display-lockup {
    margin-bottom: 16px;
  }

  .project-number {
    font-size: clamp(96px, 9vw, 118px);
  }

  .project-name {
    margin-top: 14px;
    font-size: clamp(62px, 6vw, 76px);
  }

  .project-headline {
    margin-bottom: 12px;
    padding-top: 16px;
    border-top-width: 7px;
    font-size: clamp(27px, 2.5vw, 32px);
  }

  .project-lede {
    font-size: 14px;
    line-height: 1.55;
  }

  .feature-rail {
    margin-top: 12px;
  }

  .feature-item {
    min-height: 58px;
    padding: 8px 5px;
    gap: 5px;
    font-size: 10px;
  }

  .feature-item svg {
    width: 21px;
    height: 21px;
  }

  .jiandou-stage,
  .zhiqi-stage,
  .envpilot-stage {
    min-height: 390px;
  }

  .zhiqi-dossier {
    padding: 24px 28px;
  }

  .zhiqi-dossier .project-number {
    font-size: 76px;
  }

  .zhiqi-dossier .project-name {
    margin-top: 12px;
    font-size: 50px;
  }

  .zhiqi-dossier .project-headline {
    margin-top: 14px;
    padding-top: 14px;
    border-top-width: 2px;
    font-size: 32px;
  }

  .phone-shell img {
    max-height: none;
    object-fit: contain;
  }

  .phone-shell {
    width: min(250px, 21vw);
  }

  .backdrop-number {
    font-size: 360px;
  }

  .product-window-light img {
    max-height: 53vh;
  }

  .envpilot-copy .project-number {
    font-size: 118px;
  }

  .envpilot-copy .project-name {
    margin-top: 12px;
    font-size: 58px;
  }

  .envpilot-copy .project-headline {
    margin-top: 14px;
    font-size: 29px;
  }

  .runtime-list {
    margin-top: 12px;
    font-size: 14px;
  }

  .runtime-list span {
    padding: 5px 0;
  }

  .action-rail {
    min-height: 54px;
  }

  .action {
    min-height: 52px;
    padding: 10px 18px;
    font-size: 13px;
  }

  .project-meta {
    font-size: 13px;
  }

  .section-progress {
    min-height: 18px;
    font-size: 10px;
  }
}

@media (max-width: 900px) {
  html {
    scroll-snap-type: y proximity;
  }

  .project-screen {
    min-height: auto;
    padding-bottom: 48px;
    scroll-snap-align: none;
  }

  .section-frame {
    min-height: 0;
    gap: 24px;
  }

  .project-grid,
  .jiandou-grid,
  .zhiqi-grid,
  .envpilot-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .project-copy {
    max-width: 720px;
  }

  .display-lockup {
    display: flex;
    align-items: flex-end;
    gap: 24px;
  }

  .display-lockup .project-number,
  .display-lockup .project-name {
    margin: 0;
  }

  .project-number {
    font-size: 112px;
  }

  .project-name {
    font-size: 78px;
  }

  .project-headline {
    max-width: 760px;
  }

  .jiandou-stage {
    min-height: 460px;
  }

  .stage-block {
    inset: 0 -10% 0 9%;
  }

  .zhiqi-dossier {
    max-width: 760px;
  }

  .zhiqi-stage {
    min-height: 720px;
  }

  .phone-shell {
    width: min(330px, 76vw);
  }

  .backdrop-number {
    right: 4%;
    font-size: 410px;
  }

  .envpilot-copy {
    order: -1;
  }

  .envpilot-copy .project-number {
    font-size: 128px;
  }

  .envpilot-copy .project-name {
    font-size: 78px;
  }

  .envpilot-stage {
    min-height: 500px;
  }

  .action-rail {
    flex-wrap: wrap;
    min-height: 0;
  }

  .project-meta {
    min-height: 58px;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 68px;
    --page-gutter: 16px;
  }

  body::before {
    opacity: 0.1;
  }

  .brand {
    display: grid;
    gap: 0;
    font-size: 19px;
  }

  .project-nav {
    gap: 8px;
  }

  .project-nav a {
    min-width: 38px;
    justify-content: center;
    padding-inline: 7px;
    font-size: 13px;
  }

  .project-nav a::after {
    height: 3px;
  }

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

  .project-screen {
    padding-top: calc(var(--header-height) + 30px);
    padding-bottom: 54px;
  }

  .section-frame {
    gap: 22px;
  }

  .project-grid,
  .jiandou-grid,
  .zhiqi-grid,
  .envpilot-grid {
    gap: 28px;
  }

  .display-lockup {
    display: block;
    margin-bottom: 22px;
  }

  .project-number,
  .display-lockup .project-number {
    font-size: 98px;
  }

  .project-name,
  .display-lockup .project-name {
    margin-top: 16px;
    font-size: clamp(58px, 18vw, 76px);
  }

  .project-headline {
    margin-bottom: 14px;
    padding-top: 20px;
    border-top-width: 7px;
    font-size: clamp(29px, 8.4vw, 39px);
    line-height: 1.14;
  }

  .project-lede {
    font-size: 15px;
    line-height: 1.72;
  }

  .feature-rail {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 26px;
  }

  .feature-item {
    min-height: 78px;
    font-size: 12px;
  }

  .feature-item:nth-child(3) {
    border-left: 0;
  }

  .feature-item:nth-child(n + 3) {
    border-top: 1px solid currentColor;
  }

  .jiandou-stage {
    min-height: 300px;
  }

  .stage-block {
    inset: 0 -16% 0 5%;
  }

  .product-window-dark {
    width: 104%;
    border-width: 5px;
    box-shadow: 9px 11px 0 rgba(17, 17, 17, 0.18);
  }

  .window-bar {
    height: 28px;
  }

  .window-bar strong {
    font-size: 8px;
  }

  .zhiqi-dossier {
    padding: 24px 20px;
    box-shadow: 8px 8px 0 var(--burgundy);
  }

  .zhiqi-dossier .project-number {
    font-size: 86px;
  }

  .zhiqi-dossier .project-name {
    font-size: clamp(48px, 14vw, 66px);
  }

  .zhiqi-dossier .project-headline {
    margin-top: 22px;
    font-size: clamp(32px, 9vw, 44px);
  }

  .zhiqi-stage {
    min-height: 640px;
  }

  .phone-shell {
    width: min(306px, 84vw);
    border-radius: 42px;
    box-shadow:
      0 24px 54px rgba(78, 11, 24, 0.3),
      8px 8px 0 rgba(78, 11, 24, 0.62);
  }

  .phone-shell img {
    max-height: none;
    border-radius: 33px;
  }

  .backdrop-number {
    right: -10%;
    font-size: 300px;
  }

  .envpilot-copy .project-number {
    font-size: 112px;
  }

  .envpilot-copy .project-name {
    font-size: clamp(56px, 18vw, 78px);
  }

  .envpilot-copy .project-headline {
    margin-top: 20px;
    font-size: clamp(30px, 8vw, 38px);
  }

  .envpilot-stage {
    min-height: 280px;
  }

  .product-window-light {
    width: 108%;
    margin-left: 8%;
    border-radius: 5px;
    box-shadow:
      0 24px 54px rgba(0, 0, 0, 0.4),
      7px 7px 0 rgba(45, 125, 255, 0.24);
  }

  .runtime-line {
    right: -20%;
    width: 42%;
  }

  .action-rail,
  .project-actions {
    width: 100%;
  }

  .project-actions {
    flex-wrap: wrap;
  }

  .project-meta {
    width: 100%;
    padding: 0 4px;
  }

  .action {
    width: 100%;
    min-width: 0;
    min-height: 56px;
    border-right: 0;
    border-bottom: 1px solid currentColor;
    border-left: 0;
  }

  .action-rail > .action-quiet {
    width: 100%;
  }

  .section-progress {
    gap: 10px;
  }

  .section-progress span {
    gap: 6px;
  }

  .media-dialog {
    width: calc(100vw - 24px);
    max-height: 88vh;
  }

  .media-dialog img {
    max-height: calc(88vh - 52px);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .product-window,
  .phone-shell {
    transform: none !important;
  }
}