:root {
  --green: #087f73;
  --green-deep: #075c56;
  --green-soft: #dff3ed;
  --ink: #152b2a;
  --muted: #617473;
  --paper: #f5f8f5;
  --white: #fff;
  --line: #dbe5e1;
  --orange: #f59d62;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--green-deep);
  transform: translateY(-200%);
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 1px 0 rgba(16, 52, 48, 0.08);
  backdrop-filter: blur(16px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 12px;
  background: var(--green);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.brand-mark i {
  width: 13px;
  height: 19px;
  border-right: 5px solid var(--white);
  border-bottom: 5px solid var(--white);
  transform: rotate(45deg) translate(-2px, -2px);
}

.brand-mark b {
  position: absolute;
  top: 0;
  right: -3px;
  display: grid;
  width: 16px;
  height: 16px;
  color: var(--green);
  font-size: 14px;
  line-height: 1;
  border-radius: 50%;
  background: var(--white);
  place-items: center;
}

.brand-text {
  font-size: 21px;
  letter-spacing: 1px;
}

.brand-text em {
  color: var(--orange);
  font-style: normal;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 38px;
  font-size: 15px;
}

.site-nav > a {
  position: relative;
  padding: 27px 0;
}

.site-nav > a::after {
  position: absolute;
  right: 0;
  bottom: 18px;
  left: 0;
  height: 2px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

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

.menu-button {
  display: none;
}

.hero {
  position: relative;
  display: flex;
  min-height: 620px;
  height: calc(100svh - 78px);
  max-height: 820px;
  align-items: center;
  color: var(--white);
  overflow: hidden;
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-image {
  background: url("/assets/hero.jpg") center 42% / cover no-repeat;
  animation: reveal 1.2s ease both;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(4, 48, 45, 0.9) 0%, rgba(4, 48, 45, 0.66) 43%, rgba(4, 48, 45, 0.14) 75%),
    linear-gradient(0deg, rgba(6, 38, 36, 0.35), transparent 45%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 0;
}

.eyebrow,
.section-kicker {
  margin: 0 0 22px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.24em;
}

.eyebrow {
  color: #bdece3;
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(60px, 7.3vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.hero h1 span {
  color: #bdece3;
}

.hero-lead {
  margin: 32px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 24px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid transparent;
  border-radius: 5px;
  transition: 0.2s ease;
}

.button:hover {
  transform: translateY(-3px);
}

.button-primary {
  color: var(--green-deep);
  background: #c9f1e9;
}

.button-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
}

.section {
  padding: 112px 0;
}

.section-heading {
  display: flex;
  margin-bottom: 52px;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.section-heading h2,
.opportunity-intro h2,
.about-copy h2 {
  margin: 0;
  font-size: clamp(38px, 4.5vw, 62px);
  line-height: 1.15;
  letter-spacing: -0.05em;
}

.section-heading > p,
.opportunity-intro > p:last-child,
.about-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.service-card {
  position: relative;
  min-height: 370px;
  padding: 36px 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: 0.3s ease;
}

.service-card:hover,
.service-card.featured {
  color: var(--white);
  background: var(--green);
  box-shadow: 0 24px 60px rgba(8, 127, 115, 0.2);
  transform: translateY(-10px);
}

.service-index {
  position: absolute;
  top: 24px;
  right: 24px;
  color: #9aabaa;
  font-size: 12px;
}

.service-card:hover .service-index,
.service-card.featured .service-index {
  color: rgba(255, 255, 255, 0.65);
}

.service-icon {
  display: grid;
  width: 60px;
  height: 60px;
  margin: 38px 0 48px;
  color: var(--green);
  font-size: 22px;
  font-weight: 800;
  border-radius: 50%;
  background: var(--green-soft);
  place-items: center;
}

.service-card:hover .service-icon,
.service-card.featured .service-icon {
  color: var(--white);
  background: rgba(255, 255, 255, 0.14);
}

.service-card h3 {
  margin: 0 0 14px;
  font-size: 24px;
}

.service-card p {
  min-height: 72px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.service-card:hover p,
.service-card.featured p {
  color: rgba(255, 255, 255, 0.76);
}

.opportunities {
  background: var(--paper);
}

.opportunity-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 52px;
  align-items: end;
  gap: 24px;
}

.opportunity-intro .section-kicker {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.opportunity-intro > p:last-child {
  padding-bottom: 7px;
  text-align: right;
}

.story-grid {
  display: grid;
  height: 600px;
  grid-template-columns: 1.35fr 0.9fr;
  grid-template-rows: 1fr 1fr;
  gap: 18px;
}

.story-card {
  position: relative;
  min-height: 0;
  color: var(--white);
  overflow: hidden;
}

.story-large {
  grid-row: 1 / 3;
}

.story-card::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(0deg, rgba(3, 36, 34, 0.8), transparent 60%);
}

.story-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.story-card:hover img {
  transform: scale(1.04);
}

.story-overlay {
  position: absolute;
  z-index: 2;
  right: 32px;
  bottom: 30px;
  left: 32px;
}

.story-overlay span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  opacity: 0.74;
}

.story-overlay h3 {
  margin: 8px 0 0;
  font-size: 28px;
}

.story-large .story-overlay h3 {
  font-size: 40px;
}

.story-overlay p {
  margin: 8px 0 0;
  opacity: 0.74;
}

.about {
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 100px;
}

.about-visual {
  position: relative;
  display: grid;
  min-height: 480px;
  background:
    radial-gradient(circle at 45% 47%, rgba(255, 255, 255, 0.14) 0 22%, transparent 23%),
    linear-gradient(135deg, #0e9d8b, #065f59);
  place-items: center;
}

.about-visual::before,
.about-visual::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 50%;
}

.about-visual::before {
  width: 330px;
  height: 330px;
}

.about-visual::after {
  width: 220px;
  height: 220px;
}

.city-ring {
  position: absolute;
  width: 440px;
  height: 440px;
  border: 74px solid rgba(255, 255, 255, 0.07);
  border-radius: 50%;
  transform: translate(-35%, 42%);
}

.city-label {
  position: relative;
  z-index: 2;
  color: var(--white);
  text-align: center;
}

.city-label small {
  display: block;
  margin-bottom: 18px;
  color: #bdece3;
  font-size: 13px;
  letter-spacing: 0.3em;
}

.city-label strong {
  font-size: 38px;
  line-height: 1.35;
}

.about-copy > p {
  max-width: 600px;
  margin-top: 28px;
}

.principles {
  display: grid;
  margin-top: 42px;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.principles div {
  padding-top: 18px;
  border-top: 2px solid var(--green);
}

.principles b,
.principles span {
  display: block;
}

.principles b {
  margin-bottom: 7px;
  font-size: 18px;
}

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

.site-footer {
  padding: 32px 0 24px;
  color: rgba(255, 255, 255, 0.7);
  background: #0d2827;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  font-size: 13px;
}

.footer-top,
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-top p {
  margin: 0;
}

.footer-bottom {
  padding-top: 20px;
  color: rgba(255, 255, 255, 0.54);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom a {
  transition: color 0.2s ease;
}

.footer-bottom a:hover,
.footer-bottom a:focus-visible {
  color: var(--white);
}

.brand-footer {
  color: var(--white);
}

.brand-footer .brand-mark {
  width: 34px;
  height: 34px;
}

.brand-footer .brand-text {
  font-size: 18px;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: scale(1.04);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@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;
  }
}

@media (max-width: 900px) {
  .container {
    width: min(100% - 34px, 720px);
  }

  .nav-wrap {
    min-height: 72px;
  }

  .menu-button {
    position: relative;
    z-index: 22;
    display: grid;
    width: 42px;
    height: 42px;
    padding: 10px;
    color: inherit;
    border: 0;
    background: transparent;
    place-content: center;
    gap: 5px;
  }

  .menu-button span {
    display: block;
    width: 23px;
    height: 2px;
    background: currentColor;
    transition: 0.2s ease;
  }

  .menu-open .menu-button span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-open .menu-button span:nth-child(2) {
    opacity: 0;
  }

  .menu-open .menu-button span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    inset: 0;
    display: flex;
    padding: 120px 32px 42px;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    color: var(--white);
    background: var(--green-deep);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-20px);
    transition: 0.25s ease;
  }

  .menu-open .site-nav {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .site-nav > a {
    width: 100%;
    padding: 22px 0;
    font-size: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

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

  .menu-open .site-header {
    color: var(--white);
    background: transparent;
    box-shadow: none;
  }

  .hero {
    min-height: 700px;
    height: 90vh;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(4, 48, 45, 0.9), rgba(4, 48, 45, 0.45)),
      linear-gradient(0deg, rgba(6, 38, 36, 0.5), transparent 55%);
  }

  .hero h1 {
    font-size: clamp(52px, 14vw, 76px);
  }

  .section {
    padding: 82px 0;
  }

  .section-heading {
    display: block;
  }

  .section-heading > p {
    margin-top: 20px;
  }

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

  .service-card {
    min-height: 340px;
  }

  .opportunity-intro {
    grid-template-columns: 1fr;
  }

  .opportunity-intro .section-kicker {
    grid-column: auto;
  }

  .opportunity-intro > p:last-child {
    text-align: left;
  }

  .story-grid {
    height: auto;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 430px 280px;
  }

  .story-large {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .about-visual {
    min-height: 400px;
  }

  .footer-top,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
}

@media (max-width: 600px) {
  .container {
    width: calc(100% - 28px);
  }

  .brand-text {
    font-size: 18px;
  }

  .hero {
    min-height: 670px;
  }

  .hero-image {
    background-position: 62% center;
  }

  .hero-content {
    padding-top: 50px;
  }

  .eyebrow {
    letter-spacing: 0.16em;
  }

  .hero h1 {
    letter-spacing: -0.07em;
  }

  .hero-lead {
    font-size: 16px;
  }

  .desktop-break {
    display: none;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .section {
    padding: 68px 0;
  }

  .section-heading h2,
  .opportunity-intro h2,
  .about-copy h2 {
    font-size: 37px;
  }

  .section-heading > p br {
    display: none;
  }

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

  .service-card {
    min-height: 315px;
  }

  .service-card:hover,
  .service-card.featured {
    transform: none;
  }

  .story-grid {
    display: block;
  }

  .story-card {
    height: 300px;
    margin-bottom: 14px;
  }

  .story-large {
    height: 390px;
  }

  .story-overlay {
    right: 22px;
    bottom: 22px;
    left: 22px;
  }

  .story-large .story-overlay h3 {
    font-size: 30px;
  }

  .about-visual {
    min-height: 340px;
  }

  .city-ring {
    width: 320px;
    height: 320px;
  }

  .city-label strong {
    font-size: 30px;
  }

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

}