:root {
  --ink: #132126;
  --muted: #58676d;
  --line: #d7dfdc;
  --teal: #087c7b;
  --teal-dark: #075f5f;
  --paper: #fbfaf6;
  --paper-deep: #f1eee6;
  --white: #ffffff;
  --page-pad: clamp(20px, 5vw, 80px);
  color: var(--ink);
  font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-synthesis: none;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

body {
  background: var(--paper);
  margin: 0;
  min-width: 320px;
}

body,
button,
input {
  font: inherit;
}

a {
  color: inherit;
}

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

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

.sr-only {
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.site-header {
  align-items: center;
  background: rgba(251, 250, 246, 0.96);
  border-bottom: 1px solid rgba(19, 33, 38, 0.08);
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(265px, 1fr) auto minmax(265px, 1fr);
  min-height: 74px;
  padding: 12px var(--page-pad);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 12px;
  justify-self: start;
  text-decoration: none;
}

.brand__mark {
  align-items: center;
  background: var(--teal);
  border-radius: 8px;
  color: var(--white);
  display: inline-flex;
  flex: 0 0 40px;
  font-size: 1.25rem;
  font-weight: 850;
  height: 40px;
  justify-content: center;
}

.brand__lockup {
  display: grid;
  gap: 2px;
}

.brand__lockup strong {
  font-size: 1.03rem;
  letter-spacing: -0.01em;
}

.brand__lockup span {
  color: var(--muted);
  font-size: 0.73rem;
}

.site-nav {
  align-items: center;
  display: flex;
  gap: clamp(20px, 2.5vw, 40px);
  justify-content: center;
}

.site-nav a {
  color: #29363a;
  font-size: 0.9rem;
  font-weight: 650;
  position: relative;
  text-decoration: none;
}

.site-nav a::after {
  background: var(--teal);
  bottom: -8px;
  content: "";
  height: 2px;
  left: 0;
  position: absolute;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
  width: 100%;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.header-contact {
  align-items: center;
  display: flex;
  gap: 20px;
  justify-self: end;
}

.header-contact__phone {
  color: var(--teal-dark);
  font-size: 0.86rem;
  font-weight: 750;
  text-decoration: none;
}

.menu-toggle {
  background: transparent;
  border: 0;
  display: none;
  padding: 8px;
}

.menu-toggle__line {
  background: var(--ink);
  display: block;
  height: 2px;
  margin: 4px 0;
  width: 24px;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  font-weight: 750;
  justify-content: center;
  min-height: 52px;
  padding: 13px 24px;
  text-decoration: none;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

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

.button--primary {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--white);
}

.button--primary:hover {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.button--outline {
  background: transparent;
  border-color: rgba(8, 124, 123, 0.45);
  color: var(--teal-dark);
}

.button--outline:hover {
  background: var(--teal);
  color: var(--white);
}

.button--small {
  min-height: 42px;
  padding: 9px 17px;
}

.text-link {
  align-items: center;
  color: var(--teal-dark);
  display: inline-flex;
  font-weight: 750;
  gap: 8px;
  min-height: 44px;
  text-decoration: none;
}

.text-link span {
  transition: transform 160ms ease;
}

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

.hero {
  background-color: var(--paper);
  display: grid;
  grid-template-columns: minmax(400px, 0.72fr) minmax(620px, 1.28fr);
  min-height: 500px;
  overflow: hidden;
}

.hero__copy {
  align-content: center;
  display: grid;
  padding: 48px 42px 46px var(--page-pad);
  position: relative;
  z-index: 2;
}

.proof-pill {
  border: 1px solid rgba(8, 124, 123, 0.5);
  border-radius: 999px;
  color: var(--teal-dark);
  font-size: 0.8rem;
  font-weight: 750;
  justify-self: start;
  margin: 0 0 24px;
  padding: 7px 14px;
}

.hero h1 {
  font-size: clamp(2.85rem, 3.15vw, 3.8rem);
  letter-spacing: -0.055em;
  line-height: 1.05;
  margin: 0;
  max-width: 680px;
}

.hero__lead {
  color: var(--muted);
  font-size: clamp(1rem, 1.25vw, 1.18rem);
  line-height: 1.8;
  margin: 23px 0 0;
  max-width: 610px;
}

.hero__actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 28px;
}

.hero__visual {
  background: var(--paper-deep);
  min-height: 500px;
  overflow: hidden;
  position: relative;
}

.hero__visual::before {
  background: var(--paper);
  content: "";
  height: 120%;
  left: -110px;
  position: absolute;
  top: -10%;
  transform: rotate(7deg);
  width: 150px;
  z-index: 1;
}

.hero__visual img {
  height: 100%;
  inset: 0;
  object-fit: cover;
  object-position: center;
  position: absolute;
  width: 100%;
}

.workflow-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  left: 6%;
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  right: 4%;
  top: 38px;
  z-index: 2;
}

.workflow-rail li {
  border-bottom: 1px solid rgba(8, 95, 95, 0.34);
  color: var(--teal-dark);
  display: grid;
  gap: 5px;
  padding: 0 12px 13px;
  position: relative;
  text-align: center;
}

.workflow-rail li::after {
  background: var(--teal);
  border: 4px solid rgba(251, 250, 246, 0.85);
  border-radius: 50%;
  bottom: -6px;
  content: "";
  height: 11px;
  left: calc(50% - 5px);
  position: absolute;
  width: 11px;
}

.workflow-rail span {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
}

.workflow-rail strong {
  font-size: 0.88rem;
}

.product-band {
  background: #f7f5ef;
  padding: 52px var(--page-pad) 70px;
  scroll-margin-top: 82px;
}

.section-heading {
  align-items: end;
  display: grid;
  gap: 40px;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.6fr);
  margin: 0 auto 34px;
  max-width: 1440px;
}

.eyebrow {
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.section-heading h2,
.service h2,
.case-study h2 {
  font-size: clamp(2.25rem, 3.5vw, 3.75rem);
  letter-spacing: -0.045em;
  line-height: 1.08;
  margin: 0;
}

.section-heading > p {
  color: var(--muted);
  line-height: 1.75;
  margin: 0;
}

.case-study {
  background: #082e36;
  min-height: 500px;
  overflow: hidden;
  position: relative;
}

.case-study__image {
  height: 100%;
  inset: 0;
  object-fit: cover;
  position: absolute;
  width: 100%;
}

.case-study__copy {
  color: var(--white);
  max-width: 630px;
  padding: 90px 40px 86px var(--page-pad);
  position: relative;
  z-index: 1;
}

.eyebrow--light {
  color: #8bc7c3;
}

.case-study__copy > p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.75;
  max-width: 520px;
}

.case-study__metrics {
  display: grid;
  gap: 0;
  grid-template-columns: repeat(3, 1fr);
  margin: 42px 0 28px;
}

.case-study__metrics div {
  border-left: 1px solid rgba(255, 255, 255, 0.25);
  padding: 0 20px;
}

.case-study__metrics div:first-child {
  padding-left: 0;
}

.case-study__metrics dt {
  font-size: 1.15rem;
  font-weight: 800;
}

.case-study__metrics dd {
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.75rem;
  line-height: 1.5;
  margin: 7px 0 0;
}

.text-link--light {
  color: var(--white);
}

.service {
  background: var(--white);
  padding: 86px var(--page-pad) 76px;
}

.service__intro {
  display: grid;
  gap: 28px;
  grid-template-columns: 0.42fr 1.1fr;
  margin: 0 auto 52px;
  max-width: 1440px;
}

.service__items {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0 auto;
  max-width: 1440px;
}

.service__items article {
  min-height: 205px;
  padding: 28px 30px 30px;
}

.service__items article + article {
  border-left: 1px solid var(--line);
}

.service__number {
  color: var(--teal);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.service__items h3 {
  font-size: 1.18rem;
  margin: 30px 0 10px;
}

.service__items p {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
  margin: 0;
}

.service__contact {
  align-items: center;
  background: var(--paper-deep);
  display: grid;
  gap: 25px;
  grid-template-columns: 1fr auto auto;
  margin: 34px auto 0;
  max-width: 1440px;
  padding: 24px 30px;
}

.service__contact div {
  display: grid;
  gap: 5px;
}

.service__contact span,
.service__contact p {
  color: var(--muted);
  font-size: 0.75rem;
  margin: 0;
}

.service__contact a:not(.button) {
  color: var(--teal-dark);
  font-size: 1.35rem;
  font-weight: 850;
  text-decoration: none;
}

.site-footer {
  align-items: center;
  background: #102126;
  color: var(--white);
  display: grid;
  gap: 30px;
  grid-template-columns: 1fr 1.2fr auto;
  padding: 32px var(--page-pad);
}

.brand--footer .brand__lockup span,
.site-footer > p {
  color: rgba(255, 255, 255, 0.62);
}

.site-footer > p {
  font-size: 0.78rem;
  line-height: 1.6;
  margin: 0;
}

.site-footer__legal {
  text-align: right;
}

:focus-visible {
  outline: 3px solid rgba(8, 124, 123, 0.34);
  outline-offset: 4px;
}

@media (min-width: 981px) {
  .site-nav[hidden] {
    display: flex !important;
  }
}

@media (max-width: 1180px) {
  .site-header {
    gap: 18px;
    grid-template-columns: minmax(240px, 1fr) auto;
  }

  .site-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    padding-bottom: 8px;
  }

  .header-contact {
    grid-column: 2;
    grid-row: 1;
  }

  .hero {
    grid-template-columns: minmax(360px, 0.8fr) minmax(480px, 1.2fr);
  }

  .hero__visual::before {
    display: none;
  }
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 68px;
  }

  .menu-toggle {
    display: block;
    grid-column: 2;
    grid-row: 1;
  }

  .header-contact {
    display: none;
  }

  .site-nav {
    align-items: stretch;
    background: var(--paper);
    border-top: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    grid-column: 1 / -1;
    margin: 4px calc(-1 * var(--page-pad)) -12px;
    padding: 8px var(--page-pad) 18px;
  }

  .site-nav[hidden] {
    display: none !important;
  }

  .site-nav a {
    border-bottom: 1px solid var(--line);
    padding: 14px 0;
  }

  .site-nav a::after {
    display: none;
  }

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

  .hero__copy {
    padding-bottom: 56px;
    padding-top: 68px;
  }

  .hero__visual {
    min-height: min(72vw, 620px);
  }

  .section-heading,
  .service__intro {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .service__items {
    grid-template-columns: repeat(2, 1fr);
  }

  .service__items article:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .service__items article:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-footer__legal {
    text-align: left;
  }
}

@media (max-width: 620px) {
  .brand__lockup strong {
    font-size: 0.92rem;
  }

  .brand__lockup span {
    font-size: 0.66rem;
  }

  .brand__mark {
    flex-basis: 36px;
    height: 36px;
  }

  .hero__copy {
    padding: 52px 20px 48px;
  }

  .proof-pill {
    font-size: 0.72rem;
    margin-bottom: 20px;
  }

  .hero h1 {
    font-size: clamp(2.55rem, 13vw, 4rem);
  }

  .hero__lead {
    font-size: 0.96rem;
    line-height: 1.7;
    margin-top: 22px;
  }

  .hero__actions {
    align-items: stretch;
    flex-direction: column;
    gap: 7px;
    margin-top: 28px;
  }

  .hero__visual {
    min-height: 360px;
  }

  .hero__visual img {
    object-position: 35% center;
  }

  .workflow-rail {
    left: 12px;
    right: 12px;
    top: 18px;
  }

  .workflow-rail li {
    padding-left: 3px;
    padding-right: 3px;
  }

  .workflow-rail strong {
    font-size: 0.68rem;
  }

  .product-band,
  .service {
    padding: 62px 16px 68px;
  }

  .section-heading {
    gap: 18px;
    margin-bottom: 26px;
  }

  .section-heading h2,
  .service h2,
  .case-study h2 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .case-study {
    min-height: 630px;
  }

  .case-study__image {
    object-position: 60% center;
  }

  .case-study__copy {
    padding: 56px 20px;
  }

  .case-study__metrics {
    grid-template-columns: 1fr;
  }

  .case-study__metrics div,
  .case-study__metrics div:first-child {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.22);
    padding: 14px 0;
  }

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

  .service__items article,
  .service__items article + article,
  .service__items article:nth-child(3),
  .service__items article:nth-child(4) {
    border-left: 0;
    border-top: 1px solid var(--line);
    min-height: auto;
    padding: 24px 4px;
  }

  .service__items article:first-child {
    border-top: 0;
  }

  .service__items h3 {
    margin-top: 14px;
  }

  .service__contact {
    align-items: start;
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .site-footer {
    padding: 32px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}