:root {
  --landing-ink: #172126;
  --landing-muted: #536169;
  --landing-paper: #ffffff;
  --landing-soft: #eef3f2;
  --landing-line: #cfd9d8;
  --landing-teal: #0d6f78;
  --landing-teal-dark: #084d54;
  --landing-red: #b33f32;
  --landing-night: #182326;
  --landing-yellow: #e6b944;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.laesim-landing {
  background: var(--landing-paper);
  color: var(--landing-ink);
  font-family: "Noto Sans CJK SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  letter-spacing: 0;
  margin: 0;
}

.laesim-landing a {
  color: inherit;
  text-decoration: none;
}

.landing-shell {
  margin: 0 auto;
  max-width: 1180px;
  padding-left: 32px;
  padding-right: 32px;
  width: 100%;
}

.landing-header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--landing-line);
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 20;
}

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

.landing-identity {
  align-items: center;
  display: flex;
  gap: 16px;
  min-width: 0;
}

.landing-brand {
  color: var(--landing-ink);
  font-size: 22px;
  font-weight: 800;
}

.landing-institution {
  border-left: 1px solid var(--landing-line);
  color: var(--landing-muted);
  display: flex;
  flex-direction: column;
  font-size: 11px;
  line-height: 1.45;
  padding-left: 16px;
  white-space: nowrap;
}

.landing-institution strong {
  color: var(--landing-ink);
  font-size: 12px;
}

.landing-nav {
  align-items: center;
  display: flex;
  gap: 28px;
}

.landing-nav a {
  color: #344148;
  font-size: 14px;
  font-weight: 700;
}

.landing-nav a:hover,
.landing-nav a:focus-visible {
  color: var(--landing-teal);
}

.landing-hero {
  height: min(760px, calc(100svh - 96px));
  min-height: 520px;
  overflow: hidden;
  position: relative;
}

.landing-hero__image,
.landing-hero__shade {
  height: 100%;
  inset: 0;
  position: absolute;
  width: 100%;
}

.landing-hero__image {
  object-fit: cover;
  object-position: center 45%;
}

.landing-hero__shade {
  background: rgba(8, 18, 21, 0.57);
}

.landing-hero__content {
  color: #fff;
  display: flex;
  flex-direction: column;
  height: 100%;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.landing-kicker,
.landing-affiliation,
.landing-eyebrow {
  color: var(--landing-teal);
  font-size: 13px;
  font-weight: 800;
  margin: 0 0 14px;
  text-transform: uppercase;
}

.landing-affiliation {
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  margin-bottom: 12px;
  text-transform: none;
}

.landing-kicker {
  color: #f2d370;
}

.landing-hero h1 {
  color: #fff;
  font-size: 72px;
  line-height: 1;
  margin: 0 0 24px;
}

.landing-hero__lead {
  font-size: 20px;
  line-height: 1.7;
  margin: 0;
  max-width: 760px;
}

.landing-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.landing-button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 4px;
  display: inline-flex;
  font-size: 15px;
  font-weight: 800;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
}

.landing-button--primary {
  background: var(--landing-teal);
  color: #fff !important;
}

.landing-button--primary:hover,
.landing-button--primary:focus-visible {
  background: var(--landing-teal-dark);
}

.landing-button--secondary {
  border-color: rgba(255, 255, 255, 0.72);
  color: #fff !important;
}

.landing-button--secondary:hover,
.landing-button--secondary:focus-visible {
  background: rgba(255, 255, 255, 0.12);
}

.landing-button--light {
  background: #fff;
  color: var(--landing-night) !important;
}

.landing-button--outline {
  border-color: var(--landing-ink);
}

.landing-hero__meta {
  bottom: 34px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  margin: 0;
  position: absolute;
}

.landing-facts {
  background: var(--landing-soft);
  border-bottom: 1px solid var(--landing-line);
}

.landing-facts__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.landing-facts__grid > div {
  align-items: baseline;
  border-right: 1px solid var(--landing-line);
  display: flex;
  gap: 12px;
  min-height: 96px;
  padding: 30px 24px;
}

.landing-facts__grid > div:first-child {
  border-left: 1px solid var(--landing-line);
}

.landing-facts strong {
  color: var(--landing-red);
  font-size: 30px;
}

.landing-facts span {
  color: var(--landing-muted);
  font-size: 14px;
}

.landing-section {
  padding: 104px 0;
}

.landing-feature {
  align-items: center;
  display: grid;
  gap: 72px;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
}

.landing-feature__media {
  margin: 0;
}

.landing-feature__media img {
  aspect-ratio: 16 / 10;
  display: block;
  object-fit: cover;
  width: 100%;
}

.landing-feature__media figcaption {
  color: var(--landing-muted);
  font-size: 12px;
  margin-top: 10px;
}

.landing-section h2,
.landing-cta h2 {
  color: var(--landing-ink);
  font-size: 38px;
  line-height: 1.25;
  margin: 0 0 22px;
}

.landing-feature__copy > p:not(.landing-eyebrow),
.landing-section__heading > p:not(.landing-eyebrow) {
  color: var(--landing-muted);
  font-size: 17px;
  line-height: 1.8;
}

.landing-feature code {
  background: #e8eeee;
  border: 1px solid var(--landing-line);
  border-radius: 3px;
  color: #923a30;
  padding: 2px 5px;
}

.landing-checklist {
  border-top: 1px solid var(--landing-line);
  list-style: none;
  margin: 30px 0 26px;
  padding: 0;
}

.landing-checklist li {
  align-items: baseline;
  border-bottom: 1px solid var(--landing-line);
  display: grid;
  gap: 18px;
  grid-template-columns: 70px 1fr;
  padding: 13px 0;
}

.landing-checklist span {
  color: var(--landing-muted);
  font-size: 14px;
}

.landing-text-link {
  color: var(--landing-teal) !important;
  font-size: 14px;
  font-weight: 800;
}

.landing-section--map {
  background: #f6f7f4;
  border-bottom: 1px solid var(--landing-line);
  border-top: 1px solid var(--landing-line);
}

.landing-section--showcase {
  border-bottom: 1px solid var(--landing-line);
}

.landing-gallery {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 48px 0 28px;
}

.landing-gallery figure {
  margin: 0;
  min-width: 0;
}

.landing-gallery img {
  aspect-ratio: 16 / 10;
  display: block;
  object-fit: cover;
  width: 100%;
}

.landing-gallery figcaption {
  border-bottom: 1px solid var(--landing-line);
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 0;
}

.landing-gallery figcaption strong {
  font-size: 15px;
}

.landing-gallery figcaption span {
  color: var(--landing-muted);
  font-size: 13px;
}

.landing-section--demo {
  background: #f6f7f4;
  border-bottom: 1px solid var(--landing-line);
}

.landing-demo {
  align-items: center;
  display: grid;
  gap: 64px;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1.3fr);
}

.landing-demo__copy > p:not(.landing-eyebrow) {
  color: var(--landing-muted);
  font-size: 17px;
  line-height: 1.8;
}

.landing-demo__video {
  aspect-ratio: 16 / 9;
  background: #11191c;
  display: block;
  object-fit: contain;
  width: 100%;
}

.landing-section__heading {
  max-width: 790px;
}

.landing-pipeline {
  align-items: stretch;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  margin-top: 54px;
}

.landing-pipeline > div {
  border-top: 3px solid var(--landing-teal);
  min-height: 150px;
  padding: 22px 6px 0;
}

.landing-pipeline > b {
  align-self: center;
  color: #87928f;
  font-size: 22px;
}

.landing-pipeline span,
.landing-network-flow small {
  color: var(--landing-red);
  display: block;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 12px;
}

.landing-pipeline strong,
.landing-pipeline small {
  display: block;
}

.landing-pipeline small {
  color: var(--landing-muted);
  line-height: 1.6;
  margin-top: 10px;
}

.landing-section--network {
  background: var(--landing-night);
  color: #fff;
}

.landing-section__heading--light h2 {
  color: #fff;
}

.landing-section__heading--light > p:not(.landing-eyebrow) {
  color: #bdc9cc;
}

.landing-section--network .landing-eyebrow {
  color: var(--landing-yellow);
}

.landing-network-flow {
  align-items: stretch;
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  margin-top: 50px;
}

.landing-network-flow > div {
  border: 1px solid #4b5a5e;
  border-radius: 4px;
  min-height: 170px;
  padding: 28px;
}

.landing-network-flow > b {
  align-self: center;
  color: #819095;
  font-size: 24px;
}

.landing-network-flow small {
  color: var(--landing-yellow);
}

.landing-network-flow strong,
.landing-network-flow span {
  display: block;
}

.landing-network-flow strong {
  font-size: 22px;
  margin-bottom: 16px;
}

.landing-network-flow span {
  color: #bdc9cc;
  font-size: 14px;
  line-height: 1.65;
}

.landing-network-actions {
  align-items: center;
  display: flex;
  gap: 24px;
  margin-top: 34px;
}

.landing-text-link--light {
  color: #fff !important;
}

.landing-workflow {
  display: grid;
  gap: 80px;
  grid-template-columns: 0.75fr 1.25fr;
}

.landing-workflow ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.landing-workflow li {
  border-top: 1px solid var(--landing-line);
  display: grid;
  gap: 20px;
  grid-template-columns: 32px 1fr;
  padding: 19px 0;
}

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

.landing-workflow li > span {
  color: var(--landing-red);
  font-weight: 800;
}

.landing-workflow strong,
.landing-workflow p {
  display: block;
  margin: 0;
}

.landing-workflow p {
  color: var(--landing-muted);
  font-size: 14px;
  margin-top: 6px;
}

.landing-section--team {
  background: #f6f7f4;
  border-top: 1px solid var(--landing-line);
}

.landing-team__grid {
  display: grid;
  gap: 64px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 48px;
}

.landing-team__group {
  border-top: 3px solid var(--landing-teal);
  padding-top: 20px;
}

.landing-team__role {
  color: var(--landing-muted);
  font-size: 13px;
  font-weight: 800;
  margin: 0 0 18px;
}

.landing-team__names {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 42px;
}

.landing-team__names strong {
  color: var(--landing-ink);
  font-size: 24px;
}

.landing-team__links {
  border-top: 1px solid var(--landing-line);
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  margin-top: 42px;
  padding-top: 24px;
}

.landing-cta {
  background: #edf4f3;
  border-top: 1px solid var(--landing-line);
  padding: 72px 0;
}

.landing-cta__inner {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.landing-cta h2 {
  margin-bottom: 0;
}

.landing-cta .landing-actions {
  flex-wrap: nowrap;
  margin-top: 0;
}

.landing-footer {
  background: #11191c;
  color: #aebabc;
  padding: 30px 0;
}

.landing-footer__inner {
  align-items: center;
  display: flex;
  font-size: 13px;
  gap: 22px;
}

.landing-footer strong {
  color: #fff;
  font-size: 17px;
  margin-right: auto;
}

.landing-footer__institution {
  color: #fff;
  line-height: 1.55;
}

.landing-footer__note {
  max-width: 300px;
}

.landing-footer a {
  color: #fff;
}

@media (max-width: 900px) {
  .landing-feature,
  .landing-demo,
  .landing-workflow {
    gap: 46px;
    grid-template-columns: 1fr;
  }

  .landing-pipeline {
    grid-template-columns: 1fr 1fr;
  }

  .landing-pipeline > b {
    display: none;
  }

  .landing-network-flow {
    grid-template-columns: 1fr;
  }

  .landing-network-flow > b {
    display: none;
  }

  .landing-gallery {
    grid-template-columns: 1fr 1fr;
  }

  .landing-team__grid {
    gap: 40px;
  }

  .landing-cta__inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 30px;
  }
}

@media (max-width: 700px) {
  .landing-shell {
    padding-left: 20px;
    padding-right: 20px;
  }

  .landing-header {
    height: 60px;
  }

  .landing-nav {
    gap: 16px;
  }

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

  .landing-institution {
    display: none;
  }

  .landing-hero {
    height: calc(100svh - 88px);
    min-height: 440px;
  }

  .landing-hero__image {
    object-position: 51% center;
  }

  .landing-hero h1 {
    font-size: 48px;
  }

  .landing-hero__lead {
    font-size: 17px;
    line-height: 1.65;
  }

  .landing-affiliation {
    font-size: 12px;
    line-height: 1.6;
    max-width: 310px;
  }

  .landing-hero__meta {
    bottom: 22px;
    font-size: 11px;
  }

  .landing-facts__grid {
    grid-template-columns: 1fr 1fr;
  }

  .landing-facts__grid > div,
  .landing-facts__grid > div:first-child {
    border: 0;
    border-bottom: 1px solid var(--landing-line);
    min-height: 78px;
    padding: 20px;
  }

  .landing-facts__grid > div:nth-child(odd) {
    border-right: 1px solid var(--landing-line);
  }

  .landing-section {
    padding: 70px 0;
  }

  .landing-section h2,
  .landing-cta h2 {
    font-size: 30px;
  }

  .landing-feature__media img {
    aspect-ratio: 4 / 3;
  }

  .landing-gallery {
    grid-template-columns: 1fr;
  }

  .landing-team__grid {
    grid-template-columns: 1fr;
  }

  .landing-team__names strong {
    font-size: 21px;
  }

  .landing-pipeline {
    grid-template-columns: 1fr;
  }

  .landing-pipeline > div {
    min-height: auto;
    padding-bottom: 20px;
  }

  .landing-network-actions,
  .landing-cta .landing-actions {
    align-items: stretch;
    flex-direction: column;
    width: 100%;
  }

  .landing-button {
    width: 100%;
  }

  .landing-footer__inner {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .landing-footer strong,
  .landing-footer__institution,
  .landing-footer__note {
    flex-basis: 100%;
  }
}