:root {
  --bg: #ffffff;
  --panel: #f7f8f6;
  --panel-strong: #eef3f0;
  --ink: #1d2522;
  --ink-soft: #4f5d58;
  --muted: #7a8782;
  --line: rgba(29, 37, 34, 0.1);
  --orange: #ee650f;
  --orange-deep: #c84f05;
  --green: #43b36d;
  --blue: #3677d8;
  --shadow: 0 22px 70px rgba(31, 45, 39, 0.12);
  --shadow-soft: 0 14px 44px rgba(31, 45, 39, 0.08);
  --shadow-tight: 0 10px 28px rgba(31, 45, 39, 0.06);
  --radius: 8px;
  color-scheme: light;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

body.menu-open {
  overflow: hidden;
}

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

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

button {
  color: inherit;
  font: inherit;
}

.copy-en {
  display: none !important;
}

body[data-lang="zh"] .copy-en {
  display: none !important;
}

body[data-lang="en"] .copy-zh {
  display: none !important;
}

body[data-lang="en"] .copy-en {
  display: inline !important;
}

.site-header {
  position: fixed;
  z-index: 40;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  min-height: 76px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(29, 37, 34, 0);
  backdrop-filter: blur(18px);
  transition:
    min-height 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  min-height: 64px;
  background: rgba(255, 255, 255, 0.94);
  border-color: var(--line);
  box-shadow: 0 10px 30px rgba(31, 45, 39, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: max-content;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--orange);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 900;
  box-shadow: 0 12px 24px rgba(238, 101, 15, 0.22);
}

.star-mark {
  background: #ffd86b;
  color: #935000;
}

.brand strong {
  display: block;
  color: var(--orange);
  font-size: 1.2rem;
  font-weight: 860;
  line-height: 1;
}

.brand small {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  line-height: 1;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2.4vw, 30px);
  font-size: 0.9rem;
  font-weight: 720;
}

.desktop-nav > a,
.nav-menu-trigger {
  opacity: 0.82;
  transition:
    opacity 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.desktop-nav > a:hover,
.desktop-nav > a.is-active,
.nav-menu-trigger:hover {
  opacity: 1;
  color: var(--orange);
  transform: translateY(-1px);
}

.product-menu {
  position: relative;
}

.nav-menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-menu-trigger svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.product-dropdown {
  position: absolute;
  z-index: 60;
  top: calc(100% + 18px);
  left: 50%;
  display: grid;
  min-width: 260px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -8px);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.product-menu:hover .product-dropdown,
.product-menu.is-open .product-dropdown,
.product-menu:focus-within .product-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.product-dropdown a {
  display: grid;
  gap: 6px;
  padding: 16px;
  border-radius: 6px;
}

.product-dropdown a:hover {
  background: var(--panel);
}

.dropdown-title {
  color: var(--orange);
  font-size: 0.98rem;
  font-weight: 850;
}

.dropdown-title em {
  margin-left: 4px;
  color: var(--ink-soft);
  font-size: 0.74rem;
  font-style: normal;
}

.product-dropdown .copy-zh,
.product-dropdown .copy-en {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.header-tools {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.lang-switch {
  display: inline-grid;
  grid-template-columns: repeat(2, 1fr);
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.lang-switch button {
  min-width: 36px;
  height: 30px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 850;
  cursor: pointer;
}

.lang-switch button.is-active {
  background: var(--orange);
  color: #fff;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  border-radius: 999px;
  background: currentColor;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.menu-open .menu-button span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-open .menu-button span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  z-index: 34;
  top: 72px;
  left: 16px;
  right: 16px;
  display: none;
  gap: 2px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.mobile-nav.is-open {
  display: grid;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-nav a {
  padding: 14px 12px;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 760;
}

.mobile-nav a:hover {
  background: var(--panel);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: clamp(32px, 5vw, 78px);
  align-items: center;
  min-height: 88svh;
  padding: 108px clamp(20px, 5vw, 72px) 48px;
  overflow: hidden;
}

.company-hero {
  isolation: isolate;
  grid-template-columns: minmax(0, 1fr);
  min-height: 88svh;
  padding-top: clamp(118px, 12vh, 148px);
  padding-bottom: clamp(58px, 8vh, 86px);
  background:
    linear-gradient(90deg, #fff 0%, rgba(255, 255, 255, 0.98) 34%, rgba(255, 255, 255, 0.78) 50%, rgba(255, 255, 255, 0.2) 70%, rgba(255, 255, 255, 0) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.82) 0%, rgba(255, 255, 255, 0.1) 38%, rgba(255, 255, 255, 0.74) 100%),
    url("assets/hero-study-1440.webp");
  background-repeat: no-repeat;
  background-position:
    center,
    center,
    right center;
  background-size:
    cover,
    cover,
    min(72vw, 1120px) auto;
}

.company-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 62%, #fff 100%);
  transform: translateZ(0);
  pointer-events: none;
}

.product-hero {
  grid-template-columns: minmax(0, 0.92fr) minmax(460px, 1.08fr);
  align-items: center;
  min-height: 760px;
  padding-top: clamp(116px, 10vh, 142px);
  padding-bottom: clamp(52px, 7vh, 78px);
  background:
    radial-gradient(circle at 90% 16%, rgba(54, 119, 216, 0.1), rgba(54, 119, 216, 0) 28%),
    linear-gradient(180deg, #fff 0%, #f8faf9 100%);
}

.hero-copy-block {
  position: relative;
  z-index: 2;
  width: min(620px, 100%);
}

.company-hero .hero-copy-block {
  width: min(920px, 58vw);
}

.hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.95rem, 5.4vw, 5.45rem);
  font-weight: 880;
  line-height: 1.02;
  letter-spacing: 0;
}

body[data-page="company"][data-lang="zh"] .hero h1 {
  font-size: clamp(2.8rem, 3.55vw, 4.65rem);
  white-space: nowrap;
}

body[data-page="company"][data-lang="zh"] .company-hero h1 .copy-zh {
  display: block !important;
  white-space: nowrap;
}

body[data-lang="en"] .hero h1 {
  font-size: clamp(2.65rem, 4.8vw, 4.75rem);
  line-height: 1.04;
}

.product-hero h1 {
  font-size: clamp(2.7rem, 4.15vw, 4.55rem);
  line-height: 1.02;
}

.hero-lede {
  margin: 24px 0 0;
  color: var(--orange);
  font-size: clamp(1.18rem, 2.2vw, 2.2rem);
  font-weight: 780;
  line-height: 1.2;
}

.hero-text {
  max-width: 590px;
  margin: 20px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.35vw, 1.16rem);
  line-height: 1.82;
}

.hero-actions,
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 50px;
  border: 0;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 840;
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.primary-button {
  padding: 0 20px 0 22px;
  background: var(--orange);
  color: #fff;
  box-shadow: 0 18px 36px rgba(238, 101, 15, 0.23);
}

.secondary-button {
  padding: 0 20px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.secondary-button:hover {
  border-color: rgba(238, 101, 15, 0.35);
  color: var(--orange);
}

.primary-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.hero-points > span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink-soft);
  font-size: 0.85rem;
  font-weight: 760;
}

.hero-points > span:nth-child(1)::before,
.hero-points > span:nth-child(2)::before,
.hero-points > span:nth-child(3)::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border-radius: 50%;
}

.hero-points > span:nth-child(1)::before {
  background: var(--green);
}

.hero-points > span:nth-child(2)::before {
  background: var(--orange);
}

.hero-points > span:nth-child(3)::before {
  background: var(--blue);
}

.hero-media {
  position: relative;
  height: clamp(440px, 68vh, 650px);
  min-height: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-media picture {
  display: block;
  height: 100%;
}

.hero-media img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: center;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.video-shell {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0f1513;
  box-shadow: var(--shadow);
}

.product-hero .video-shell {
  width: min(760px, 100%);
  justify-self: end;
  align-self: center;
}

.video-poster {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: #0f1513;
  cursor: pointer;
}

.video-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.98);
  transition: transform 360ms ease, filter 360ms ease;
}

.video-poster:hover img {
  transform: scale(1.015);
  filter: saturate(1.04);
}

.play-button {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--orange);
  box-shadow: 0 18px 44px rgba(15, 21, 19, 0.22);
  transform: translate(-50%, -50%);
}

.play-button svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.video-caption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 820;
}

.video-shell video {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-shell.is-playing .video-poster {
  display: none;
}

.video-shell.is-playing video {
  display: block;
}

.section,
.ecosystem-band,
.loop-section,
.timeline-section {
  padding: clamp(74px, 10vw, 132px) clamp(20px, 5vw, 72px);
}

.section-heading,
.ecosystem-band > h2,
.section-copy,
.contact-band > div,
.loop-section > .section-heading,
.timeline-section > .section-heading {
  width: min(960px, 100%);
}

.section-heading {
  margin: 0 auto clamp(36px, 5vw, 66px);
  text-align: center;
}

.section-kicker {
  margin-bottom: 14px;
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 880;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section h2,
.ecosystem-band h2,
.loop-section h2,
.timeline-section h2,
.contact-band h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.2rem, 4.6vw, 4.7rem);
  font-weight: 860;
  line-height: 1.08;
  letter-spacing: 0;
}

.section-copy > p,
.contact-band p,
.privacy-card p {
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.35vw, 1.16rem);
  line-height: 1.82;
}

.ecosystem-band {
  position: relative;
  width: min(1240px, calc(100% - 40px));
  margin: -34px auto 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-soft);
}

.ecosystem-band > h2 {
  margin-bottom: clamp(34px, 5vw, 58px);
}

.ecosystem-grid,
.hardware-grid,
.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.ecosystem-grid article,
.hardware-grid article,
.principle-grid article,
.insight-panel > div,
.capability-list > div,
.report-card,
.privacy-card,
.loop-detail {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-tight);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.ecosystem-grid article:hover,
.hardware-grid article:hover,
.principle-grid article:hover,
.insight-panel > div:hover,
.capability-list > div:hover,
.report-card:hover,
.privacy-card:hover,
.loop-detail:hover {
  transform: translateY(-5px);
  border-color: rgba(238, 101, 15, 0.28);
  box-shadow: var(--shadow-soft);
}

.ecosystem-grid article,
.hardware-grid article {
  display: grid;
  grid-template-rows: 162px auto 1fr;
  gap: 14px;
  align-content: stretch;
  min-height: 330px;
  padding: 24px;
}

.ecosystem-grid img,
.hardware-grid img {
  width: 100%;
  height: 100%;
  margin-bottom: 0;
  object-fit: contain;
}

.ecosystem-grid picture,
.hardware-grid picture {
  display: block;
  width: 100%;
  height: 162px;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(180deg, #fbfaf7, #f4f6f3);
}

.ecosystem-grid picture img,
.hardware-grid picture img {
  width: 100%;
  height: 100%;
  margin-bottom: 0;
  object-fit: contain;
  transform: translateZ(0);
}

.ecosystem-grid h3,
.hardware-grid h3,
.principle-grid h3,
.insight-panel h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.14rem;
  line-height: 1.2;
}

.ecosystem-grid p,
.hardware-grid p,
.principle-grid p,
.insight-panel p,
.capability-list span,
.loop-detail p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.62;
}

.split-section,
.team-section,
.parent-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(34px, 6vw, 84px);
  align-items: center;
}

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

.insight-panel > div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  padding: clamp(20px, 3vw, 28px);
}

.insight-panel h3 span,
.insight-panel p span {
  width: auto;
  height: auto;
  background: transparent;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.insight-panel > div > span:first-child {
  grid-row: span 2;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: rgba(238, 101, 15, 0.1);
  color: var(--orange);
  font-size: 0.82rem;
  font-weight: 900;
}

.principles-section,
.hardware-section {
  background: var(--panel);
}

.principle-grid {
  width: min(1120px, 100%);
  margin: 0 auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principle-grid article {
  display: grid;
  grid-template-rows: auto auto 1fr;
  min-height: 300px;
  padding: clamp(24px, 3vw, 34px);
}

.principle-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 26px;
  place-items: center;
  border-radius: 8px;
  background: var(--panel-strong);
  color: var(--orange);
  font-weight: 900;
}

.team-section {
  background: #fff;
}

.capability-list {
  display: grid;
  gap: 14px;
}

.capability-list > div {
  display: grid;
  gap: 8px;
  padding: 24px;
}

.capability-list b {
  color: var(--ink);
  font-size: 1rem;
}

.contact-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: clamp(64px, 8vw, 96px) clamp(20px, 5vw, 72px);
  background: #17221e;
  color: #fff;
}

.contact-band h2 {
  color: #fff;
}

.contact-band p {
  color: rgba(255, 255, 255, 0.72);
}

.loop-section {
  background: #fff;
}

.timeline-section {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, #fff 0%, #f7faf8 100%);
}

.timeline-section::before {
  content: "";
  position: absolute;
  top: 50%;
  left: clamp(20px, 5vw, 72px);
  right: clamp(20px, 5vw, 72px);
  height: 1px;
  background: linear-gradient(90deg, rgba(238, 101, 15, 0), rgba(238, 101, 15, 0.42), rgba(54, 119, 216, 0.28), rgba(238, 101, 15, 0));
}

.timeline-track {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.timeline-track article {
  position: relative;
  display: grid;
  grid-template-rows: auto auto 1fr;
  min-height: 260px;
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-tight);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.timeline-track article::before {
  content: "";
  position: absolute;
  top: -9px;
  left: 28px;
  width: 16px;
  height: 16px;
  border: 4px solid #fff;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 1px rgba(238, 101, 15, 0.24);
}

.timeline-track article:hover {
  transform: translateY(-5px);
  border-color: rgba(238, 101, 15, 0.28);
  box-shadow: var(--shadow-soft);
}

.timeline-track article > span {
  color: var(--orange);
  font-size: 0.82rem;
  font-weight: 900;
}

.timeline-track h3 {
  margin: 18px 0 0;
  color: var(--ink);
  font-size: 1.16rem;
  line-height: 1.22;
}

.timeline-track p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.62;
}

.loop-map {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  width: min(1180px, 100%);
  margin: 0 auto 18px;
}

.loop-map button {
  display: grid;
  gap: 12px;
  min-height: 118px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  text-align: left;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.loop-map button:hover,
.loop-map button.is-active {
  border-color: rgba(238, 101, 15, 0.38);
  background: rgba(238, 101, 15, 0.06);
  transform: translateY(-3px);
}

.loop-map span {
  color: var(--orange);
  font-size: 0.82rem;
  font-weight: 900;
}

.loop-map b {
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.26;
}

.loop-detail {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 36px);
  text-align: center;
}

.loop-detail > span {
  color: var(--orange);
  font-size: 0.84rem;
  font-weight: 900;
}

.loop-detail h3 {
  margin: 10px 0 0;
  color: var(--ink);
  font-size: clamp(1.4rem, 2.6vw, 2.3rem);
  line-height: 1.18;
}

.loop-detail.is-changing {
  animation: pulse-in 320ms ease;
}

@keyframes pulse-in {
  0% {
    opacity: 0.7;
    transform: translateY(4px) scale(0.99);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.hardware-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.parent-section {
  background: #fff;
}

.report-card {
  padding: clamp(24px, 4vw, 38px);
}

.report-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.report-head span {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 820;
}

.report-head b {
  color: var(--orange);
  font-size: clamp(3rem, 7vw, 5rem);
  line-height: 0.9;
}

.report-bars {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.report-bars span {
  position: relative;
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--panel-strong);
}

.report-bars span::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--bar);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--blue));
}

.report-card ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.report-card li {
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.55;
}

.report-card li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--orange);
}

.privacy-section {
  background:
    radial-gradient(circle at 78% 16%, rgba(67, 179, 109, 0.14), rgba(67, 179, 109, 0) 28%),
    var(--panel);
}

.privacy-card {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: clamp(30px, 6vw, 62px);
}

.privacy-card .secondary-button {
  margin-top: 28px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: var(--ink);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
}

.footer-links a:hover {
  color: var(--orange);
}

.js-enabled .reveal {
  opacity: 1;
  transform: translateY(14px);
  transition:
    opacity 420ms ease,
    transform 520ms ease;
}

.js-enabled .reveal.is-visible,
.reveal {
  opacity: 1;
  transform: translateY(0);
}

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

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

@media (max-width: 1080px) {
  .desktop-nav {
    display: none;
  }

  .site-header {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .menu-button {
    display: block;
  }

  .hero,
  .split-section,
  .team-section,
  .parent-section {
    grid-template-columns: 1fr;
  }

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

  .company-hero {
    min-height: 78svh;
    background:
      linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.9) 46%, rgba(255, 255, 255, 0.34) 100%),
      linear-gradient(180deg, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0.18) 42%, rgba(255, 255, 255, 0.84) 100%),
      url("assets/hero-study-960.webp");
    background-repeat: no-repeat;
    background-position:
      center,
      center,
      right center;
    background-size:
      cover,
      cover,
      min(92vw, 820px) auto;
  }

  .company-hero::before {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0) 58%, #fff 100%);
  }

  .company-hero .hero-copy-block {
    width: min(760px, 100%);
  }

  .product-hero {
    min-height: auto;
  }

  .product-hero .video-shell {
    justify-self: start;
  }

  .hero-media {
    height: 420px;
  }

  .hero-media img {
    min-height: 0;
  }

  .ecosystem-grid,
  .hardware-grid,
  .timeline-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .loop-map {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .brand small {
    display: none;
  }

  .site-header {
    padding-inline: 16px;
  }

  .hero {
    padding: 104px 18px 42px;
  }

  .company-hero {
    min-height: 86svh;
    padding-top: 120px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.72) 0%, rgba(255, 255, 255, 0.96) 48%, #fff 100%),
      url("assets/hero-study-960.webp");
    background-repeat: no-repeat;
    background-position:
      center,
      center top 76px;
    background-size:
      cover,
      auto 46svh;
  }

  .hero h1,
  .product-hero h1,
  body[data-lang="en"] .hero h1 {
    font-size: clamp(2.35rem, 12vw, 3.7rem);
  }

  body[data-page="company"][data-lang="zh"] .hero h1 {
    font-size: clamp(2.05rem, 10.5vw, 3.2rem);
    white-space: normal;
  }

  body[data-page="company"][data-lang="zh"] .company-hero h1 .copy-zh {
    white-space: normal;
  }

  .product-hero {
    padding-top: 104px;
  }

  .product-hero .video-shell {
    width: 100%;
  }

  .hero-media {
    height: 320px;
  }

  .hero-media img {
    min-height: 0;
  }

  .ecosystem-band {
    width: calc(100% - 24px);
    margin-top: 0;
    padding-inline: 18px;
  }

  .section,
  .ecosystem-band,
  .loop-section,
  .timeline-section {
    padding: 68px 18px;
  }

  .ecosystem-grid,
  .hardware-grid,
  .principle-grid,
  .loop-map,
  .timeline-track {
    grid-template-columns: 1fr;
  }

  .timeline-section::before {
    top: 0;
    bottom: 54px;
    left: 38px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(238, 101, 15, 0), rgba(238, 101, 15, 0.42), rgba(54, 119, 216, 0.28), rgba(238, 101, 15, 0));
  }

  .timeline-track {
    gap: 12px;
  }

  .timeline-track article {
    min-height: 0;
    padding: 22px 22px 22px 42px;
  }

  .timeline-track article::before {
    top: 24px;
    left: 12px;
    width: 12px;
    height: 12px;
  }

  .principle-grid article:first-child {
    grid-column: span 1;
  }

  .contact-band,
  .site-footer {
    display: grid;
    justify-items: start;
  }

  .footer-links {
    justify-content: flex-start;
  }
}