:root {
  color-scheme: light;
  --ink: #122033;
  --muted: #6e7a89;
  --line: #d8e0e8;
  --line-strong: #aab7c6;
  --navy: #17304d;
  --navy-deep: #071c33;
  --gold: #d9b182;
  --gold-deep: #b88752;
  --cyan: #3b9fe8;
  --green: #18a861;
  --red: #e64a41;
  --surface: rgba(255, 255, 255, 0.78);
  --shadow: 0 28px 80px rgba(18, 32, 51, 0.14);
  --fall-duration: 0.97s;
  --feature-enter-duration: 1.136s;
  --feature-enter-ease: cubic-bezier(0.19, 1, 0.22, 1);
  --feature-fall-spin-angle: 421.6deg;
  --logo-origin-x: 49.8%;
  --logo-origin-y: 49.3%;
  --motion-vh: 100vh;
  font-family:
    "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Segoe UI",
    Arial, sans-serif;
  font-size: 16px;
}

@supports (height: 100svh) {
  :root {
    --motion-vh: 100svh;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  overflow-x: hidden;
  overflow-y: auto;
  background: #f8fafc;
  color: var(--ink);
}

body.home-page {
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
}

button,
a {
  font: inherit;
}

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

.svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.site-shell {
  position: relative;
  width: 100vw;
  height: var(--motion-vh);
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 248, 252, 0.82)),
    #fff;
}

.site-shell::before {
  position: absolute;
  inset: -192px 0;
  z-index: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(122, 146, 170, 0.11) 1px, transparent 1px),
    linear-gradient(0deg, rgba(122, 146, 170, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 146, 170, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(122, 146, 170, 0.06) 1px, transparent 1px);
  background-position:
    center,
    center,
    center,
    center;
  background-size:
    96px 96px,
    96px 96px,
    24px 24px,
    24px 24px;
  opacity: 0.74;
  backface-visibility: hidden;
  contain: paint;
  transform: translate3d(0, 0, 0);
}

.site-shell[data-step="1"]::before {
  opacity: 0.28;
  animation: shellGridFallLoop 700ms linear infinite;
  will-change: transform, opacity;
  transition:
    opacity 700ms ease;
}

.site-shell::after {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(ellipse at center, rgba(255, 255, 255, 0) 0 26%, rgba(255, 255, 255, 0.58) 66%, #fff 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0, rgba(255, 255, 255, 0.28) 34%, rgba(255, 255, 255, 0.9) 100%);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(22px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(182, 195, 208, 0.5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand img {
  display: block;
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 118px;
  height: 38px;
  padding: 0 18px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  background: var(--navy);
  border: 1px solid rgba(7, 28, 51, 0.2);
  border-radius: 6px;
  box-shadow: 0 10px 22px rgba(23, 48, 77, 0.18);
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.download-link:hover {
  transform: translateY(-1px);
  background: var(--navy-deep);
  box-shadow: 0 14px 28px rgba(23, 48, 77, 0.2);
}

.hero-scene {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero-scene::before,
.hero-scene::after {
  position: absolute;
  z-index: 4;
  pointer-events: none;
  content: "";
  opacity: 0;
  contain: paint;
  backface-visibility: hidden;
  transform-origin: center;
}

.hero-scene::before {
  inset: -78% -18%;
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0 74px,
      rgba(59, 159, 232, 0.28) 76px,
      rgba(23, 48, 77, 0.18) 79px,
      transparent 84px,
      transparent 144px
    );
  transform: rotate(-13deg) translate3d(0, 0, 0);
}

.hero-scene::after {
  inset: -82% -16%;
  background:
    repeating-linear-gradient(
      180deg,
      transparent 0 92px,
      rgba(217, 177, 130, 0.2) 94px,
      rgba(24, 168, 97, 0.12) 97px,
      transparent 102px,
      transparent 168px
    );
  transform: rotate(13deg) translate3d(0, 0, 0);
}

.site-shell[data-step="1"] .hero-scene::before,
.site-shell[data-step="3"] .hero-scene::before {
  opacity: 0.5;
  animation: speedDropStreaks var(--fall-duration) linear infinite;
  will-change: transform, opacity;
}

.site-shell[data-step="1"][data-step1-motion="settle"] .hero-scene::before,
.site-shell[data-step="3"][data-step2-motion="logo-rise-stage"] .hero-scene::before {
  opacity: 0;
  animation:
    speedDropStreaks var(--fall-duration) linear infinite,
    speedStreakFadeIn 0.3s linear 1 both;
  will-change: transform, opacity;
}

.site-shell[data-step="0"][data-step0-motion="return"] .hero-scene::before,
.site-shell[data-step="2"][data-step2-motion="logo-drop"] .hero-scene::before {
  opacity: 0;
  animation:
    speedDropStreaks var(--fall-duration) linear infinite,
    speedStreakFadeOut 0.3s linear 1 both;
  will-change: transform, opacity;
}

.site-shell[data-step="0"][data-step0-motion="return"] .hero-scene::after,
.site-shell[data-step="1"] .hero-scene::after,
.site-shell[data-step="2"][data-step2-motion="logo-drop"] .hero-scene::after,
.site-shell[data-step="3"][data-step2-motion="logo-rise-stage"] .hero-scene::after {
  opacity: 0;
  animation: none;
}

.draft-grid {
  position: absolute;
  left: 50%;
  top: 55%;
  width: min(96vw, 1400px);
  height: min(70vh, 620px);
  transform: translate(-50%, -50%) perspective(950px) rotateX(62deg);
  transform-origin: center;
  opacity: 0.8;
  background:
    linear-gradient(90deg, rgba(67, 99, 129, 0.14) 1px, transparent 1px),
    linear-gradient(0deg, rgba(67, 99, 129, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(67, 99, 129, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(67, 99, 129, 0.06) 1px, transparent 1px);
  background-size:
    88px 88px,
    88px 88px,
    22px 22px,
    22px 22px;
  border: 1px solid rgba(176, 192, 208, 0.28);
  backface-visibility: hidden;
  will-change: transform, opacity;
  transition:
    transform 260ms cubic-bezier(0.2, 0.78, 0.16, 1),
    opacity 260ms cubic-bezier(0.2, 0.78, 0.16, 1);
}

.draft-grid::before,
.draft-grid::after {
  position: absolute;
  content: "";
  border: 1px dashed rgba(75, 105, 133, 0.28);
  border-radius: 50%;
}

.draft-grid::before {
  left: 14%;
  top: 12%;
  width: 62%;
  height: 78%;
}

.draft-grid::after {
  right: 9%;
  bottom: 16%;
  width: 34%;
  height: 48%;
}

.axis-mark {
  position: absolute;
  left: clamp(24px, 6vw, 96px);
  bottom: clamp(64px, 12vh, 130px);
  z-index: 2;
  width: 150px;
  height: 112px;
  opacity: 0.23;
  backface-visibility: hidden;
  will-change: transform, opacity;
  transition:
    transform 620ms cubic-bezier(0.12, 0.78, 0.16, 1),
    opacity 620ms cubic-bezier(0.12, 0.78, 0.16, 1);
}

.axis-mark .axis-line,
.axis-mark .axis-head {
  fill: none;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.axis-mark .axis-head {
  fill: currentColor;
  stroke: none;
}

.axis-mark .x-axis {
  color: var(--red);
  stroke: var(--red);
}

.axis-mark .y-axis {
  color: var(--green);
  stroke: var(--green);
}

.axis-mark .z-axis {
  color: var(--cyan);
  stroke: var(--cyan);
}

.axis-mark text {
  fill: currentColor;
  font-size: 22px;
  font-weight: 700;
}

.cabinet-drawing {
  position: absolute;
  top: 13%;
  right: clamp(26px, 8vw, 140px);
  z-index: 2;
  width: min(18vw, 230px);
  min-width: 150px;
  color: rgba(63, 84, 106, 0.42);
  opacity: 0.74;
  backface-visibility: hidden;
  will-change: transform, opacity;
  transition:
    transform 620ms cubic-bezier(0.12, 0.78, 0.16, 1),
    opacity 620ms cubic-bezier(0.12, 0.78, 0.16, 1);
}

.cabinet-art {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  height: auto;
  opacity: 0.78;
}

.cabinet-dim-line {
  position: absolute;
  z-index: 3;
  display: grid;
  place-items: center;
  color: currentColor;
  font-size: clamp(12px, 1.25vw, 17px);
  font-weight: 700;
  line-height: 1.1;
  pointer-events: none;
}

.cabinet-dim-line::before {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  content: "";
  background: repeating-linear-gradient(90deg, currentColor 0 7px, transparent 7px 14px);
  opacity: 0.72;
}

.cabinet-dim-line span {
  position: relative;
  z-index: 1;
  padding: 0 5px;
  text-align: center;
  transform: translateY(var(--dim-label-offset, -0.82em));
}

.cabinet-dim-width {
  left: -1.5%;
  top: 2.5%;
  width: 36%;
  transform: rotate(-30deg);
}

.cabinet-dim-depth {
  --dim-label-offset: -0.62em;
  left: 42.5%;
  top: 7%;
  width: 60%;
  transform: rotate(30deg);
}

.cabinet-dim-height {
  --dim-label-offset: -0.62em;
  right: -39%;
  top: 52%;
  width: 78%;
  transform: rotate(90deg);
}

.hero-content {
  position: relative;
  z-index: 5;
  width: 100%;
  height: 100%;
  transform: translateX(var(--content-offset-x, 0px));
}

.model-stage {
  position: absolute;
  left: 50%;
  top: 43%;
  z-index: 9;
  --model-y: 0px;
  --logo-view-y: 0px;
  --model-exit-y: calc(57vh + 180px);
  width: clamp(190px, min(27vw, 44vh), 360px);
  aspect-ratio: 1;
  transform: translate3d(-50%, -50%, 0) translateY(calc(var(--model-y) + var(--logo-view-y))) scale(1);
  transform-origin: center;
  perspective: 980px;
  contain: layout;
  overflow: visible;
  will-change: transform, opacity;
  transition:
    transform var(--fall-duration) linear,
    opacity var(--fall-duration) linear;
}

.site-shell[data-step="1"] .draft-grid {
  top: 55%;
  transform: translate3d(-50%, calc(-50% - 190px), 0) perspective(950px) rotateX(68deg) scale(1.14);
  opacity: 0;
  animation: none;
  transition:
    transform 740ms cubic-bezier(0.16, 0.78, 0.16, 1),
    opacity 700ms ease;
}

.site-shell[data-step="1"] .axis-mark {
  transform: translateY(-150px) scale(1.08);
  opacity: 0;
  transition:
    transform 740ms cubic-bezier(0.16, 0.78, 0.16, 1),
    opacity 700ms ease;
}

.site-shell[data-step="1"] .cabinet-drawing {
  transform: translateY(-180px) scale(0.92);
  opacity: 0;
  transition:
    transform 740ms cubic-bezier(0.16, 0.78, 0.16, 1),
    opacity 700ms ease;
}

.site-shell[data-has-features="true"] .model-stage {
  --model-y: 0px;
  opacity: 1;
  filter: none;
  transform: translate3d(-50%, -50%, 0) translateY(calc(var(--model-y) + var(--logo-view-y))) scale(1);
  pointer-events: none;
  transition:
    transform var(--feature-enter-duration) linear;
}

.site-shell[data-feature-mode="overview"] .model-stage {
  --logo-view-y: calc(var(--motion-vh) + 240px);
  opacity: 1;
}

.site-shell[data-step="2"][data-feature-return="overview-in"] .model-stage {
  transition: none;
}

.site-shell[data-step="2"][data-step2-motion="logo-drop"] .model-stage {
  animation: logoHoldThenDrop 1.2s linear 1 both;
}

.site-shell[data-step="2"][data-step2-motion="logo-overview-down"] .model-stage {
  opacity: 1;
  animation: logoOverviewDown 1.2s linear 1 both;
}

.site-shell[data-step="1"][data-step2-motion="logo-rise"] .model-stage {
  animation: logoRiseFromBottom 1.2s linear 1 both;
}

.site-shell[data-step="3"][data-step2-motion="logo-rise-stage"] .model-stage {
  animation: logoRiseToStage 1.2s linear 1 both;
}

.site-shell[data-step="3"] .model-stage {
  --logo-view-y: -70px;
  opacity: 1;
}

.site-shell[data-feature-mode="demo"] .model-stage {
  --logo-view-y: -70px;
  opacity: 0;
}

.site-shell[data-step="3"][data-step2-motion="logo-enter-down"] .model-stage,
.site-shell[data-step="4"][data-step2-motion="logo-exit-down"] .model-stage {
  opacity: 1;
}

.site-shell[data-step="3"][data-step2-motion="logo-enter-down"] .model-stage {
  animation: logoEnterDown 1.2s linear 1 both;
}

.site-shell[data-step="4"][data-step2-motion="logo-exit-down"] .model-stage {
  animation: logoExitDown 1.2s linear 1 both;
}

.site-shell[data-step="4"][data-step2-motion="logo-exit-up"] .model-stage {
  opacity: 1;
  animation: logoExitUp 1.2s linear 1 both;
}

.site-shell[data-has-features="true"] .logo-model {
  animation: none;
  transform: rotateY(360deg);
}

.site-shell[data-has-features="true"] .logo-piece {
  animation: flatClockwiseSpin var(--top-spin-duration, 1.45s) linear infinite;
  will-change: transform;
}

.site-shell[data-has-features="true"][data-step2-motion="fall"] .logo-piece {
  will-change: transform;
}

.site-shell[data-has-features="true"] .draft-grid {
  top: 42%;
  transform: translate(-50%, -50%) perspective(950px) rotateX(64deg) translateY(-40px) scale(1.02);
  visibility: visible;
  opacity: 0.78;
}

.site-shell[data-step="3"] .draft-grid,
.site-shell[data-feature-mode="demo"] .draft-grid {
  top: 42%;
  transform: translate(-50%, -50%) perspective(950px) rotateX(68deg) translateY(-280px) scale(1.14);
  visibility: visible;
  opacity: 0;
}

.site-shell[data-feature-mode="demo"] .draft-grid {
  transform: translate(-50%, -50%) perspective(950px) rotateX(70deg) translateY(-470px) scale(1.24);
  opacity: 0;
}

.site-shell[data-has-features="true"] .axis-mark {
  visibility: visible;
  opacity: 0.2;
}

.site-shell[data-step="3"] .axis-mark,
.site-shell[data-feature-mode="demo"] .axis-mark {
  visibility: visible;
  opacity: 0;
  transform: translateY(-160px) scale(1.08);
}

.site-shell[data-feature-mode="demo"] .axis-mark {
  opacity: 0;
  transform: translateY(-320px) scale(1.1);
}

.site-shell[data-has-features="true"] .cabinet-drawing {
  visibility: visible;
  opacity: 0.58;
}

.site-shell[data-step="3"] .cabinet-drawing,
.site-shell[data-feature-mode="demo"] .cabinet-drawing {
  visibility: visible;
  opacity: 0;
  transform: translateY(-170px) scale(0.9);
}

.site-shell[data-feature-mode="demo"] .cabinet-drawing {
  opacity: 0;
  transform: translateY(-340px) scale(0.88);
}

.logo-model {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transform-origin: var(--logo-origin-x) var(--logo-origin-y);
  animation: modelSpin 5.8s linear infinite;
  contain: layout paint;
}

.site-shell[data-step="0"] .logo-model,
.site-shell[data-step="0"][data-step0-motion="return"] .logo-piece,
.site-shell[data-step="1"][data-step1-motion="settle"] .logo-model {
  will-change: transform;
}

.site-shell[data-step="1"] .logo-model,
.site-shell[data-step="2"] .logo-model,
.site-shell[data-step="3"] .logo-model {
  animation: none;
  transform: rotateY(360deg);
}

.site-shell[data-step="1"][data-step1-motion="settle"] .logo-model {
  animation: settleFront var(--settle-duration, 520ms) linear both;
}

.logo-piece {
  position: absolute;
  inset: 0;
  display: block;
  transform-style: preserve-3d;
  transform-origin: var(--logo-origin-x) var(--logo-origin-y);
}

.site-shell[data-step="1"] .logo-piece,
.site-shell[data-step="2"] .logo-piece,
.site-shell[data-step="3"] .logo-piece {
  animation: flatClockwiseSpin var(--top-spin-duration, 1.45s) linear infinite;
  will-change: transform;
}

.site-shell[data-step="0"][data-step0-motion="return"] .logo-piece {
  animation: returnPieceSpin 960ms cubic-bezier(0.32, 0, 0.18, 1) 1 both;
}

.site-shell[data-has-features="true"][data-step2-motion="fall"] .logo-piece {
  will-change: transform;
}

.logo-face {
  position: absolute;
  inset: 0;
  display: block;
  transform-origin: var(--logo-origin-x) var(--logo-origin-y);
  background-image: url("assets/autodim-logo-transparent.png?v=20260703203200");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  backface-visibility: visible;
}

.logo-face-front {
  transform: translateZ(0.6px);
}

.logo-face-back {
  display: none;
}

.site-shell[data-step="1"] .logo-face {
  filter: none;
}

.site-shell[data-has-features="true"][data-step2-motion="fall"] .logo-face-front {
  animation: none;
}

.site-shell[data-has-features="true"] .logo-face-front {
  transform: translateZ(0.6px);
}

.model-shadow {
  position: absolute;
  left: 50%;
  bottom: 1%;
  z-index: 3;
  width: 64%;
  height: 15%;
  transform: translate3d(-50%, 0, 0);
  background: radial-gradient(ellipse at center, rgba(11, 28, 48, 0.26), transparent 66%);
  filter: blur(10px);
  contain: paint;
  will-change: transform, opacity;
  transition:
    transform var(--fall-duration) linear,
    opacity 850ms cubic-bezier(0.19, 1, 0.22, 1),
    background-color 850ms cubic-bezier(0.19, 1, 0.22, 1);
}

.site-shell[data-shadow-return="fade"] .model-shadow {
  transition:
    opacity 560ms ease,
    transform 560ms ease,
    background-color 560ms ease;
}

.site-shell[data-step="0"][data-shadow-return="fade"] .model-shadow {
  transition: none;
  animation: shadowReturnFade 620ms ease both;
}

.site-shell[data-step="0"] .model-shadow {
  width: 48%;
  height: 16%;
  opacity: 0.82;
  background: radial-gradient(ellipse at center, rgba(11, 28, 48, 0.44), transparent 66%);
}

.site-shell[data-step="1"] .model-shadow {
  opacity: 0;
  transform: translate3d(-50%, calc(var(--motion-vh) + 10vh), 0) scale(0.44, 2.8);
  background: radial-gradient(ellipse at center, rgba(11, 28, 48, 0.3), transparent 68%);
}

.site-shell[data-step="3"] .model-shadow {
  display: none;
  opacity: 0;
  animation: none;
  transition: none;
}

.site-shell[data-step="4"][data-step2-motion="logo-exit-down"] .model-shadow {
  display: none;
  opacity: 0;
  animation: none;
  transition: none;
}

.site-shell[data-step="4"][data-step2-motion="logo-exit-up"] .model-shadow {
  display: none;
  opacity: 0;
  animation: none;
  transition: none;
}

.hero-lockup {
  position: absolute;
  left: 50%;
  top: calc(43% + min(18vw, 23vh, 210px));
  z-index: 3;
  width: min(92vw, 560px);
  transform: translateX(-50%);
  text-align: center;
  transition:
    opacity 520ms ease,
    transform 700ms ease;
}

.site-shell:not([data-step="0"]) .hero-lockup {
  opacity: 0;
  transform: translateX(-50%) translateY(-18px);
  pointer-events: none;
}

.hero-lockup h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: 0;
  color: var(--navy-deep);
}

.hero-lockup p {
  margin: 14px 0 0;
  font-size: clamp(16px, 1.7vw, 22px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--muted);
}

.scene-hint {
  position: absolute;
  left: 50%;
  bottom: clamp(24px, 5vh, 46px);
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid rgba(19, 44, 73, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: rgba(18, 39, 66, 0.68);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 12px 34px rgba(20, 42, 66, 0.08);
  transform: translateX(-50%);
  transition:
    opacity 360ms ease,
    transform 420ms ease;
  white-space: nowrap;
}

.scene-hint svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  stroke-width: 2.4;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  animation: hintSlide 1.35s ease-in-out infinite;
}

.site-shell:not([data-step="0"]) .scene-hint {
  opacity: 0;
  transform: translateX(-50%) translateY(12px);
  pointer-events: none;
}

.feature-rail {
  position: absolute;
  left: 50%;
  top: clamp(82px, 12vh, 118px);
  z-index: 7;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(8px, 1.1vh, 13px);
  width: min(88vw, 480px);
  margin: 0;
  padding: 0;
  list-style: none;
  transform: translateX(-50%);
  pointer-events: none;
}

.site-shell[data-feature-mode="demo"] .feature-rail {
  top: clamp(132px, 20vh, 176px);
  min-height: clamp(54px, 7vh, 66px);
}

.feature-rail::before {
  content: none;
}

.feature-item {
  --item-delay: calc(var(--feature-index) * 72ms);
  position: relative;
  opacity: 0;
  transform: translate3d(0, 22px, 0) scale(0.98);
  backface-visibility: hidden;
  will-change: transform, opacity;
  transition:
    opacity 330ms ease var(--item-delay),
    transform 420ms var(--feature-enter-ease) var(--item-delay);
}

.site-shell[data-feature-mode="demo"] .feature-item {
  position: absolute;
  inset: 0;
  --item-delay: 0ms;
}

.feature-item.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  pointer-events: auto;
}

.site-shell[data-feature-return="down-out"] .feature-rail {
  top: clamp(132px, 20vh, 176px);
  min-height: clamp(54px, 7vh, 66px);
}

.site-shell[data-feature-return="down-out"] .feature-item {
  position: absolute;
  inset: 0;
  --item-delay: 0ms;
  opacity: 0;
  transform: translate3d(0, calc(var(--motion-vh) + 180px), 0) scale(0.98);
  pointer-events: none;
  transition:
    opacity 1200ms ease,
    transform 2100ms cubic-bezier(0.22, 0.72, 0.18, 1);
}

.site-shell[data-feature-return="overview-in"] .feature-item.is-visible {
  animation: featureOverviewReturnIn 820ms var(--feature-enter-ease) var(--item-delay) 1 both;
}

.feature-command {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: center;
  width: 100%;
  min-height: clamp(44px, 6.2vh, 58px);
  padding: 0 20px 0 0;
  overflow: hidden;
  color: var(--ink);
  text-align: left;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(181, 194, 207, 0.72);
  border-radius: 8px;
  box-shadow: 0 16px 34px rgba(18, 32, 51, 0.08);
  cursor: pointer;
  backface-visibility: hidden;
  transform: translateZ(0);
  transition:
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.feature-command::after {
  content: none;
}

.feature-command svg {
  justify-self: center;
  width: 23px;
  height: 23px;
  color: var(--navy);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.feature-command span {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: clamp(15px, 1.25vw, 18px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0;
  white-space: normal;
}

.feature-command:hover,
.feature-item.is-active .feature-command {
  color: var(--navy-deep);
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(35, 83, 128, 0.4);
  box-shadow: 0 18px 38px rgba(18, 32, 51, 0.13);
  transform: translateY(-1px);
}

.feature-command:hover svg,
.feature-item.is-active .feature-command svg {
  color: var(--cyan);
  transform: translateY(-1px);
}

.feature-item.is-active .feature-command::after {
  opacity: 1;
  transform: scaleX(1);
}

.step-dots {
  position: absolute;
  right: clamp(20px, 4vw, 56px);
  top: 50%;
  z-index: 8;
  display: grid;
  gap: 9px;
  transform: translateY(-50%);
}

.step-dot {
  width: 7px;
  height: 7px;
  padding: 0;
  background: rgba(26, 48, 74, 0.18);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition:
    width 180ms ease,
    background-color 180ms ease;
}

.step-dot.is-active {
  width: 22px;
  background: var(--navy);
  border-radius: 999px;
}

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

@keyframes modelSpin {
  0% {
    transform: rotateX(0deg) rotateY(0deg) rotateZ(0deg);
  }
  50% {
    transform: rotateX(0deg) rotateY(180deg) rotateZ(0deg);
  }
  100% {
    transform: rotateX(0deg) rotateY(360deg) rotateZ(0deg);
  }
}

@keyframes settleFront {
  0% {
    transform: rotateY(var(--spin-start-y, 0deg));
  }
  100% {
    transform: rotateY(var(--spin-front-y, 360deg));
  }
}

@keyframes shadowReturnFade {
  0% {
    opacity: 0;
    transform: translate3d(-50%, 0, 0) scale(0.71, 0.75);
  }
  34% {
    opacity: 1;
    transform: translate3d(-50%, 0, 0) scale(1.25, 1.38);
  }
  72% {
    opacity: 0.9;
    transform: translate3d(-50%, 0, 0) scale(1.08, 1.13);
  }
  100% {
    opacity: 0.82;
    transform: translate3d(-50%, 0, 0) scale(1);
  }
}

@keyframes hintSlide {
  0%,
  100% {
    transform: translateY(-2px);
  }
  50% {
    transform: translateY(3px);
  }
}

@keyframes flatClockwiseSpin {
  0% {
    transform: rotateZ(0deg);
  }
  100% {
    transform: rotateZ(360deg);
  }
}

@keyframes returnPieceSpin {
  0% {
    transform: rotateZ(var(--return-piece-start, 0deg));
  }
  100% {
    transform: rotateZ(0deg);
  }
}

@keyframes logoHoldThenDrop {
  0%,
  6.2% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(0) scale(1);
  }
  100% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--motion-vh) + 240px)) scale(1);
  }
}

@keyframes logoRiseFromBottom {
  0% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--motion-vh) + 240px)) scale(1);
  }
  100% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(0) scale(1);
  }
}

@keyframes logoRiseToStage {
  0% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--motion-vh) + 240px)) scale(1);
  }
  100% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(-70px) scale(1);
  }
}

@keyframes logoExitUp {
  0% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(-70px) scale(1);
  }
  99% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(-50%, -50%, 0) translateY(calc(0px - var(--motion-vh) - 240px)) scale(1);
  }
}

@keyframes logoEnterDown {
  0% {
    opacity: 0;
    transform: translate3d(-50%, -50%, 0) translateY(calc(0px - var(--motion-vh) - 240px)) scale(1);
  }
  18% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(-70px) scale(1);
  }
}

@keyframes logoExitDown {
  0% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(-70px) scale(1);
  }
  99% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--motion-vh) + 240px)) scale(1);
  }
}

@keyframes logoOverviewDown {
  0% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(-70px) scale(1);
  }
  99% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--motion-vh) + 240px)) scale(1);
  }
}

@keyframes featureOverviewReturnIn {
  0% {
    opacity: 0;
    transform: translate3d(0, 46px, 0) scale(0.97);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

@keyframes fallFaceSpin {
  0% {
    transform: rotateZ(0deg) translateZ(0.6px);
  }
  100% {
    transform: rotateZ(var(--feature-fall-spin-angle)) translateZ(0.6px);
  }
}

@keyframes shellGridFallLoop {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(0, -192px, 0);
  }
}

@keyframes draftGridEnter {
  0% {
    transform: translate3d(-50%, -50%, 0) perspective(950px) rotateX(62deg) translateY(0) scale(1);
    opacity: 0.8;
  }
  100% {
    transform: translate3d(-50%, -50%, 0) perspective(950px) rotateX(72deg) translateY(-500px) scale(1.28);
    opacity: 0.96;
  }
}

@keyframes draftGridFallLoop {
  0% {
    transform: translate3d(-50%, -50%, 0) perspective(950px) rotateX(72deg) translateY(-500px) scale(1.28);
    opacity: 0.96;
  }
  100% {
    transform: translate3d(-50%, -50%, 0) perspective(950px) rotateX(72deg) translateY(-588px) scale(1.28);
    opacity: 0.96;
  }
}

@keyframes speedDropStreaks {
  0% {
    transform: rotate(-13deg) translate3d(0, 0, 0);
  }
  100% {
    transform: rotate(-13deg) translate3d(0, -576px, 0);
  }
}

@keyframes speedStreakFadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 0.5;
  }
}

@keyframes speedStreakFadeOut {
  0% {
    opacity: 0.5;
  }
  100% {
    opacity: 0;
  }
}

@keyframes speedDropStreaksAlt {
  0% {
    transform: rotate(13deg) translate3d(0, 0, 0);
  }
  100% {
    transform: rotate(13deg) translate3d(0, -672px, 0);
  }
}

.icp-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 2px;
  z-index: 30;
  color: #8f8f8f;
  font: 12px/1.5 "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
  text-align: center;
  pointer-events: none;
}

.site-shell:not([data-show-footer="true"]) .icp-footer {
  opacity: 0;
}

.site-shell:not([data-show-footer="true"]) .icp-footer a {
  pointer-events: none;
}

.icp-footer a {
  color: inherit;
  text-decoration: none;
  pointer-events: auto;
}

.icp-footer a:hover {
  color: var(--navy);
}

.legal-page {
  min-height: 100vh;
  overflow: auto;
  background: #f5f7fb;
  color: #202631;
}

.legal-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(32, 38, 49, 0.1);
  backdrop-filter: blur(12px);
}

.legal-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

.legal-nav a {
  color: #31405a;
  text-decoration: none;
  padding: 7px 10px;
  border-radius: 7px;
}

.legal-nav a:hover {
  background: #eef2f7;
  color: #0c1422;
}

.legal-shell {
  width: min(940px, calc(100vw - 32px));
  margin: 32px auto 20px;
}

.legal-document {
  background: #ffffff;
  border: 1px solid rgba(32, 38, 49, 0.12);
  border-radius: 8px;
  padding: clamp(24px, 5vw, 54px);
  box-shadow: 0 24px 70px rgba(23, 37, 61, 0.09);
}

.legal-document h1 {
  margin: 0 0 18px;
  color: #0b1422;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.12;
}

.legal-document h2 {
  margin: 30px 0 10px;
  color: #15243a;
  font-size: 18px;
  line-height: 1.45;
}

.legal-document p {
  margin: 8px 0;
  color: #303a4c;
  font-size: 15px;
  line-height: 1.85;
}

.legal-document .legal-meta {
  margin: 4px 0;
  color: #4b5568;
  line-height: 1.65;
}

.legal-footer {
  padding: 16px 18px 28px;
  text-align: center;
  font: 12px/1.5 "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;
}

.legal-footer a {
  color: #687386;
  text-decoration: none;
}

.legal-footer a:hover {
  color: #111827;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 760px) {
  body.home-page {
    overflow: hidden;
  }

  .site-header {
    height: 64px;
    padding: 0 18px;
  }

  .brand {
    gap: 10px;
    font-size: 17px;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .download-link {
    min-width: auto;
    height: 36px;
    padding: 0 13px;
    font-size: 13px;
  }

  .cabinet-drawing {
    top: 10%;
    right: -42px;
    width: 220px;
    min-width: 0;
    opacity: 0.3;
  }

  .axis-mark {
    left: 12px;
    bottom: 48px;
    width: 118px;
    opacity: 0.14;
  }

  .model-stage {
    top: 39%;
    --model-exit-y: calc(61vh + 180px);
    width: min(60vw, 250px);
  }

  .site-shell[data-step="1"] .model-stage {
    top: 39%;
    width: min(60vw, 250px);
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--model-y) + var(--logo-view-y))) scale(1);
  }

  .site-shell[data-has-features="true"] .model-stage {
    width: min(60vw, 250px);
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--model-y) + var(--logo-view-y))) scale(1);
  }

  .hero-lockup {
    top: calc(39% + min(36vw, 170px));
  }

  .hero-lockup h1 {
    font-size: clamp(42px, 16vw, 62px);
  }

  .hero-lockup p {
    margin-top: 10px;
    font-size: 15px;
  }

  .feature-rail {
    top: 74px;
    gap: 7px;
    width: min(91vw, 410px);
  }

  .feature-rail::before {
    left: 24px;
  }

  .feature-command {
    grid-template-columns: 48px minmax(0, 1fr);
    min-height: clamp(38px, 5.3vh, 42px);
    padding-right: 12px;
    border-radius: 7px;
  }

  .feature-command::after {
    left: 48px;
  }

  .feature-command svg {
    width: 20px;
    height: 20px;
  }

  .feature-command span {
    font-size: 13px;
    line-height: 1.2;
  }

  .step-dots {
    display: none;
  }
}

@media (max-height: 690px) and (min-width: 761px) {
  .site-header {
    height: 64px;
  }

  .feature-rail {
    top: 70px;
    gap: 6px;
    width: min(86vw, 450px);
  }

  .feature-command {
    min-height: 38px;
  }

  .feature-command span {
    font-size: 14px;
  }

  .model-stage {
    top: 41%;
    --model-exit-y: calc(59vh + 150px);
    width: clamp(180px, min(24vw, 40vh), 310px);
  }

  .hero-lockup {
    top: calc(41% + min(15vw, 19vh, 150px));
  }

  .hero-lockup h1 {
    font-size: clamp(38px, 5vw, 62px);
  }

  .hero-lockup p {
    margin-top: 10px;
    font-size: clamp(14px, 1.4vw, 18px);
  }

  .site-shell[data-step="1"] .model-stage {
    top: 41%;
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--model-y) + var(--logo-view-y))) scale(1);
  }

  .site-shell[data-has-features="true"] .model-stage {
    transform: translate3d(-50%, -50%, 0) translateY(calc(var(--model-y) + var(--logo-view-y))) scale(1);
  }
}

@media (max-height: 570px) and (min-width: 761px) {
  .site-header {
    height: 58px;
    padding-inline: clamp(18px, 4vw, 52px);
  }

  .brand {
    font-size: 16px;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .download-link {
    height: 34px;
    min-width: 96px;
    padding-inline: 15px;
  }

  .model-stage,
  .site-shell[data-step="1"] .model-stage {
    top: 39%;
    --model-exit-y: calc(61vh + 150px);
    width: clamp(160px, min(20vw, 36vh), 250px);
  }

  .hero-lockup {
    top: calc(39% + min(12vw, 17vh, 112px));
    width: min(90vw, 500px);
  }

  .hero-lockup h1 {
    font-size: clamp(34px, 4.7vw, 54px);
    line-height: 0.96;
  }

  .hero-lockup p {
    margin-top: 7px;
    font-size: 13px;
    line-height: 1.35;
  }

  .feature-rail {
    top: 62px;
    gap: 4px;
    width: min(82vw, 420px);
  }

  .feature-command {
    grid-template-columns: 42px minmax(0, 1fr);
    min-height: 33px;
    padding-right: 12px;
  }

  .feature-command::after {
    left: 42px;
  }

  .feature-command svg {
    width: 18px;
    height: 18px;
  }

  .feature-command span {
    font-size: 13px;
    line-height: 1.15;
  }

  .feature-rail::before {
    left: 21px;
    top: 16px;
    bottom: 16px;
  }
}