:root {
  color-scheme: light;
  --page: #eef5f3;
  --surface: #ffffff;
  --surface-soft: #f7fbfa;
  --surface-tint: #e3efec;
  --ink: #173330;
  --ink-soft: #3f5b56;
  --muted: #718681;
  --line: #d4e1dd;
  --line-strong: #c2d3ce;
  --accent: #159c8c;
  --accent-dark: #08786c;
  --accent-pale: #d9efeb;
  --focus: #08786c;
  --radius: 14px;
  --content-width: 1280px;
  --page-gutter: 56px;
  --shadow-soft: 0 18px 44px rgb(30 67 61 / 10%);
  --shadow-frame: 0 30px 70px rgb(22 61 56 / 16%), 0 2px 4px rgb(22 61 56 / 6%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--page);
  letter-spacing: 0;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--page);
  color: var(--ink);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1,
h2,
h3,
p,
figure,
dl,
dd {
  margin: 0;
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0;
}

section[id] {
  scroll-margin-top: 92px;
}

.page-shell,
.header-shell {
  width: min(100% - (var(--page-gutter) * 2), var(--content-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 50;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #f7fbfa;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 76px;
  border-bottom: 1px solid var(--line);
  background: rgb(247 251 250 / 96%);
}

.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
}

.brand-mark {
  display: inline-grid;
  width: 36px;
  height: 36px;
  place-items: center;
  flex: 0 0 36px;
  border: 1px solid rgb(255 255 255 / 76%);
  border-radius: 10px;
  background: var(--ink);
  color: #f7fbfa;
  font-size: 17px;
  font-weight: 800;
  line-height: 1;
}

.brand-copy {
  display: grid;
  gap: 1px;
  line-height: 1.15;
}

.brand-copy strong {
  font-size: 16px;
  font-weight: 750;
}

.brand-copy small {
  color: var(--muted);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.16em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  height: 100%;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 650;
  white-space: nowrap;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.main-nav a:hover {
  border-bottom-color: var(--accent);
  color: var(--accent-dark);
}

.main-nav .nav-cta {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
}

.main-nav .nav-cta:hover {
  border-color: var(--accent);
  background: var(--accent-pale);
}

.hero {
  min-height: calc(100vh - 76px);
  border-bottom: 1px solid var(--line);
  background: var(--page);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(340px, 0.9fr) minmax(0, 1.4fr);
  gap: 64px;
  align-items: center;
  min-height: calc(100vh - 76px);
  padding-block: 68px 84px;
}

.hero-copy {
  max-width: 500px;
}

.eyebrow {
  margin-bottom: 24px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 64px;
  font-weight: 760;
  letter-spacing: -0.03em;
}

.hero h1 span {
  color: var(--accent-dark);
}

.hero-intro {
  max-width: 25ch;
  margin-top: 28px;
  color: var(--ink-soft);
  font-size: 21px;
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 36px;
}

.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 11px;
  background: var(--accent);
  color: #f8fffd;
  font-size: 14px;
  font-weight: 750;
  transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.button-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 8px 22px rgb(21 156 140 / 20%);
  transform: translateY(-2px);
}

.button-primary:active {
  transform: translateY(1px);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
}

.text-link span {
  color: var(--accent-dark);
  transition: transform 160ms ease;
}

.text-link:hover span {
  transform: translateX(4px);
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 62px;
  color: var(--muted);
  font-size: 12px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-pale);
}

.hero-visual {
  min-width: 0;
}

.screen-wrap {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow-frame);
}

.screen-wrap img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: contain;
}

.hero-visual figcaption {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  color: var(--muted);
  font-size: 11px;
}

.section {
  padding-block: 136px;
}

.section-heading {
  max-width: 790px;
}

.section-heading .eyebrow {
  margin-bottom: 26px;
}

.section-heading h2,
.workflow-heading h2,
.about-statement h2 {
  font-size: 56px;
  font-weight: 720;
  letter-spacing: -0.03em;
}

.section-lead {
  max-width: 55ch;
  margin-top: 28px;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.8;
}

.product {
  background: var(--surface-soft);
}

.product-grid {
  display: block;
  margin-top: 84px;
}

.product-copy {
  display: grid;
  grid-template-columns: minmax(260px, 0.78fr) minmax(0, 1.22fr);
  column-gap: 96px;
  max-width: none;
  padding-top: 42px;
  border-top: 1px solid var(--line-strong);
}

.product-kicker {
  grid-column: 1;
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 750;
}

.product-copy h3 {
  grid-column: 1;
  max-width: 15ch;
  font-size: 34px;
  font-weight: 700;
}

.product-copy > p:not(.product-kicker) {
  grid-column: 2;
  grid-row: 1 / span 2;
  margin-top: 24px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.8;
}

.product-facts {
  grid-column: 2;
  margin-top: 38px;
  border-top: 1px solid var(--line);
}

.product-facts > div {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 22px;
  padding-block: 18px;
  border-bottom: 1px solid var(--line);
}

.product-facts dt {
  color: var(--accent-dark);
  font-size: 15px;
  font-weight: 750;
}

.product-facts dd {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.workflow {
  background: var(--page);
}

.workflow-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-strong);
}

.workflow-heading h2 {
  max-width: 14ch;
}

.workflow-heading p {
  max-width: 28ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.workflow-list {
  border-bottom: 1px solid var(--line-strong);
}

.workflow-list article {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 80px;
  gap: 26px;
  align-items: baseline;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
}

.workflow-list article:last-child {
  border-bottom: 0;
}

.workflow-index,
.workflow-type {
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.workflow-list h3 {
  font-size: 24px;
  font-weight: 700;
}

.workflow-list p {
  max-width: 54ch;
  margin-top: 5px;
  color: var(--muted);
  font-size: 15px;
}

.workflow-type {
  justify-self: end;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0;
}

.about {
  background: var(--surface-tint);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 120px;
  align-items: start;
}

.about-statement h2 {
  max-width: 10ch;
}

.about-copy {
  max-width: 560px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.85;
}

.about-copy p + p {
  margin-top: 22px;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgb(23 51 48 / 22%);
}

.principles > div {
  display: grid;
  gap: 8px;
  align-content: start;
}

.principles span {
  color: var(--accent-dark);
  font-size: 11px;
  font-weight: 750;
}

.principles strong {
  color: var(--ink);
  font-size: 20px;
}

.principles p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.site-footer {
  padding-block: 30px;
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 28px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 750;
}

.footer-brand .brand-mark {
  width: 28px;
  height: 28px;
  flex-basis: 28px;
  border-radius: 8px;
  font-size: 13px;
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy > * {
    animation: rise-in 620ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .hero-copy > .hero-intro {
    animation-delay: 80ms;
  }

  .hero-copy > .hero-actions {
    animation-delay: 140ms;
  }

  .hero-copy > .hero-status {
    animation-delay: 200ms;
  }

  .hero-visual {
    animation: visual-in 720ms cubic-bezier(0.16, 1, 0.3, 1) 80ms both;
  }

  @keyframes rise-in {
    from {
      opacity: 0;
      transform: translateY(16px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes visual-in {
    from {
      opacity: 0;
      transform: translateY(24px) scale(0.985);
    }

    to {
      opacity: 1;
      transform: translateY(0) scale(1);
    }
  }
}

@media (max-width: 1120px) {
  :root {
    --page-gutter: 36px;
  }

  .hero-grid {
    gap: 42px;
  }

  .hero h1 {
    font-size: 58px;
  }

  .section-heading h2,
  .workflow-heading h2,
  .about-statement h2,
  .contact-panel h2 {
    font-size: 50px;
  }

  .about-grid {
    gap: 72px;
  }

}

@media (max-width: 900px) {
  .site-header {
    height: 70px;
  }

  .main-nav {
    gap: 18px;
  }

  .hero,
  .hero-grid {
    min-height: auto;
  }

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

  .hero-grid {
    padding-block: 76px 96px;
  }

  .hero-copy {
    max-width: 660px;
  }

  .hero-visual {
    max-width: 780px;
  }

  .product-grid {
    margin-top: 60px;
  }

  .about-grid {
    gap: 46px;
  }

  .about-statement h2 {
    max-width: 15ch;
  }
}

@media (max-width: 640px) {
  :root {
    --page-gutter: 22px;
  }

  .brand-copy small {
    display: none;
  }

  .main-nav {
    gap: 12px;
    font-size: 12px;
  }

  .main-nav a:nth-child(2) {
    display: none;
  }

  .main-nav .nav-cta {
    min-height: 36px;
    padding-inline: 12px;
  }

  .hero-grid {
    padding-block: 56px 72px;
  }

  .hero h1 {
    font-size: 52px;
  }

  .hero-intro {
    font-size: 18px;
  }

  .hero-actions {
    gap: 16px;
  }

  .hero-status {
    margin-top: 42px;
  }

  .section {
    padding-block: 92px;
  }

  .section-heading h2,
  .workflow-heading h2,
  .about-statement h2 {
    font-size: 40px;
  }

  .workflow-heading {
    display: grid;
    gap: 20px;
  }

  .workflow-list article {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
  }

  .workflow-type {
    grid-column: 2;
    justify-self: start;
  }

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .product-copy {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .product-kicker,
  .product-copy h3,
  .product-copy > p:not(.product-kicker),
  .product-facts {
    grid-column: 1;
    grid-row: auto;
  }
}