:root {
  --ink: #111411;
  --charcoal: #19211d;
  --mist: #f0f2ed;
  --paper: #faf7ef;
  --line: rgba(17, 20, 17, 0.12);
  --muted: #74786f;
  --silver: #dfe2dc;
  --cedar: #294f42;
  --copper: #b78a68;
  --plum: #2b183d;
  --white: #ffffff;
  --heading-font: "Songti SC", "Noto Serif SC", "Source Han Serif SC", STSong, serif;
  --body-font: Inter, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow: 0 30px 110px rgba(17, 20, 17, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #111411 0 1100px, var(--paper) 1100px),
    var(--paper);
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  padding: 0 56px;
  color: rgba(255, 255, 255, 0.78);
  background: rgba(12, 15, 14, 0.56);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(22px);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(248, 247, 242, 0.92);
  border-color: rgba(12, 15, 14, 0.1);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 156px;
  color: inherit;
}

.brand-symbol {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--paper);
  background: linear-gradient(135deg, #241139, #2e5c4a);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 4px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  font-weight: 700;
}

.brand-mark strong,
.brand-mark em {
  display: block;
  font-style: normal;
  line-height: 1.05;
}

.brand-mark strong {
  font-size: 14px;
  font-weight: 600;
}

.brand-mark em {
  margin-top: 4px;
  color: currentColor;
  font-size: 10px;
  letter-spacing: 0.09em;
  opacity: 0.72;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 13px;
  font-weight: 500;
  color: inherit;
}

.site-nav a {
  transition: color 160ms ease;
}

.site-nav a:hover {
  color: var(--white);
}

.site-header.is-scrolled .site-nav a:hover {
  color: var(--ink);
}

.nav-cta {
  padding: 9px 15px;
  color: var(--ink) !important;
  background: var(--paper);
  border-radius: 999px;
}

.site-header.is-scrolled .nav-cta {
  color: var(--white) !important;
  background: var(--ink);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  color: inherit;
}

.menu-toggle span {
  display: block;
  width: 16px;
  height: 1px;
  margin: 5px auto;
  background: currentColor;
}

.section-shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  align-items: center;
  gap: 94px;
  padding: 132px 0 78px;
  color: var(--paper);
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 880px;
  margin-bottom: 30px;
  font-family: var(--heading-font);
  font-size: 82px;
  line-height: 1.12;
  font-weight: 400;
}

h2 {
  max-width: 820px;
  margin-bottom: 0;
  font-family: var(--heading-font);
  font-size: 56px;
  line-height: 1.16;
  font-weight: 400;
}

h3 {
  font-size: 27px;
  line-height: 1.34;
  font-weight: 520;
}

.nowrap {
  white-space: nowrap;
}

.hero-lede {
  max-width: 680px;
  margin-bottom: 34px;
  color: rgba(250, 247, 239, 0.68);
  font-size: 21px;
  font-weight: 300;
  line-height: 1.82;
}

.hero-lede span {
  color: var(--muted);
  font-size: 0.72em;
}

.service-line {
  width: fit-content;
  margin-bottom: 38px;
  padding: 11px 0;
  border-top: 1px solid rgba(248, 247, 242, 0.18);
  border-bottom: 1px solid rgba(248, 247, 242, 0.18);
  color: rgba(250, 247, 239, 0.72);
  font-size: 14px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

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

.button-primary {
  color: var(--ink);
  background: var(--paper);
}

.button-secondary {
  color: var(--paper);
  background: transparent;
}

.hero-visual {
  position: relative;
  min-height: 590px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 43%, rgba(183, 138, 104, 0.15), transparent 23%),
    radial-gradient(circle at 88% 12%, rgba(43, 24, 61, 0.36), transparent 26%),
    linear-gradient(135deg, rgba(248, 247, 242, 0.08), transparent 38%),
    linear-gradient(135deg, rgba(20, 28, 25, 0.98), rgba(8, 10, 10, 0.98)),
    var(--charcoal);
  border: 1px solid rgba(248, 247, 242, 0.18);
  border-radius: 2px;
  box-shadow: var(--shadow);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(248, 247, 242, 0.12);
}

.visual-header,
.visual-caption {
  position: absolute;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  color: rgba(250, 247, 239, 0.56);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.visual-header {
  inset: 36px 36px auto;
}

.visual-header strong {
  color: var(--paper);
}

.visual-caption {
  inset: auto 36px 36px;
  gap: 18px;
}

.visual-modules {
  position: absolute;
  left: 50%;
  top: 52%;
  z-index: 2;
  display: grid;
  width: min(82%, 560px);
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(250, 247, 239, 0.16);
  transform: translate(-50%, -50%);
}

.visual-module {
  min-height: 210px;
  padding: 24px 20px;
  border-right: 1px solid rgba(250, 247, 239, 0.12);
  background: rgba(250, 247, 239, 0.035);
}

.visual-module:last-child {
  border-right: 0;
}

.visual-module span {
  display: block;
  margin-bottom: 52px;
  color: var(--copper);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  line-height: 1;
}

.visual-module strong {
  display: block;
  margin-bottom: 12px;
  color: var(--paper);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.15;
}

.visual-module p {
  margin: 0;
  color: rgba(250, 247, 239, 0.54);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.45;
  text-transform: uppercase;
}

.signal-map {
  position: absolute;
  inset: 0;
  opacity: 0.9;
}

.node,
.route,
.axis {
  position: absolute;
  display: block;
}

.node {
  width: 11px;
  height: 11px;
  background: var(--silver);
  border-radius: 50%;
  box-shadow: 0 0 0 9px rgba(216, 221, 212, 0.08);
}

.node-a {
  left: 18%;
  bottom: 22%;
}

.node-b {
  left: 46%;
  bottom: 36%;
  background: var(--copper);
}

.node-c {
  right: 17%;
  bottom: 18%;
}

.node-d {
  right: 25%;
  top: 38%;
  background: #8da196;
}

.route {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(216, 221, 212, 0.76), transparent);
  transform-origin: left center;
}

.route-one {
  left: 19%;
  bottom: 23%;
  width: 34%;
  transform: rotate(-21deg);
}

.route-two {
  left: 47%;
  bottom: 37%;
  width: 32%;
  transform: rotate(22deg);
}

.route-three {
  right: 22%;
  top: 41%;
  width: 30%;
  transform: rotate(67deg);
}

.axis {
  background: rgba(255, 255, 255, 0.08);
}

.axis-x {
  right: 0;
  bottom: 30%;
  width: 86%;
  height: 1px;
}

.axis-y {
  right: 34%;
  bottom: 0;
  width: 1px;
  height: 74%;
}

.philosophy,
.services,
.about,
.insights,
.follow,
.contact {
  padding: 136px 0;
}

.philosophy,
.about,
.follow,
.contact {
  background: var(--mist);
}

.section-heading {
  margin-bottom: 64px;
}

.service-intro {
  max-width: 780px;
  margin-top: 34px;
  color: var(--muted);
  font-size: 19px;
  font-weight: 300;
  line-height: 1.9;
}

.service-intro p {
  margin-bottom: 18px;
}

.service-intro strong {
  display: block;
  margin-top: 28px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 500;
}

.belief-grid,
.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.belief-card,
.insight-card {
  min-height: 330px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.belief-card span,
.insight-card span {
  display: block;
  margin-bottom: 56px;
  color: var(--cedar);
  font-size: 12px;
  font-weight: 600;
}

.belief-card h3,
.insight-card h3 {
  margin-bottom: 18px;
}

.belief-card p,
.insight-card p {
  color: var(--muted);
}

.belief-card strong {
  display: block;
  margin-top: 24px;
  font-size: 15px;
  font-weight: 600;
}

.service-list {
  border-top: 1px solid var(--line);
}

.service-item {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) minmax(240px, 0.48fr);
  gap: 52px;
  padding: 42px 0;
  border-bottom: 1px solid var(--line);
}

.service-index {
  color: var(--cedar);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  font-weight: 400;
  line-height: 1;
}

.service-item h3 {
  margin-bottom: 14px;
}

.service-item p {
  max-width: 610px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 21px;
  font-weight: 300;
  line-height: 1.78;
}

.service-item strong {
  align-self: end;
  color: var(--charcoal);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.growth-engine {
  display: grid;
  grid-template-columns: 0.42fr 1fr auto;
  gap: 28px;
  align-items: center;
  margin-top: 48px;
  padding: 30px;
  color: var(--white);
  background: var(--ink);
  border-radius: 2px;
}

.growth-engine p,
.growth-engine h3 {
  margin-bottom: 0;
}

.growth-engine p {
  color: var(--silver);
}

.growth-engine h3 {
  font-size: 28px;
}

.growth-engine a {
  white-space: nowrap;
  color: var(--silver);
  font-weight: 600;
}

.about-layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 92px;
}

.about-layout .section-heading {
  margin-bottom: 0;
}

.about-copy {
  max-width: 680px;
  color: var(--charcoal);
  font-family: var(--body-font);
  font-size: 19px;
  font-weight: 300;
  line-height: 1.9;
}

.about-copy p {
  margin-bottom: 18px;
}

.about-copy p:first-child {
  color: var(--ink);
  font-family: var(--heading-font);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.72;
}

.team-strip {
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.team-strip div {
  padding: 22px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.team-strip span {
  display: block;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.team-strip strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 600;
}

.team-strip a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 300;
  overflow-wrap: anywhere;
}

.insight-grid {
  counter-reset: insight;
}

.insight-card {
  position: relative;
  display: flex;
  min-height: 390px;
  flex-direction: column;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(250, 247, 239, 0.94)),
    var(--white);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.insight-card::before {
  counter-increment: insight;
  content: "0" counter(insight);
  position: absolute;
  top: 24px;
  right: 24px;
  color: rgba(41, 79, 66, 0.22);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 58px;
  line-height: 1;
}

.insight-card::after {
  content: "";
  position: absolute;
  inset: auto 28px 88px;
  height: 1px;
  background: linear-gradient(90deg, rgba(17, 20, 17, 0.22), transparent);
}

.insight-card:hover {
  transform: translateY(-6px);
  border-color: rgba(41, 79, 66, 0.34);
  box-shadow: 0 24px 70px rgba(17, 20, 17, 0.12);
}

.insight-card span {
  width: fit-content;
  margin-bottom: 64px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(183, 138, 104, 0.42);
}

.insight-card h3 {
  position: relative;
  z-index: 1;
  margin-bottom: 20px;
}

.insight-card p {
  position: relative;
  z-index: 1;
  margin-bottom: 44px;
  line-height: 1.74;
}

.insight-card em {
  position: relative;
  z-index: 1;
  display: inline-flex;
  width: fit-content;
  margin-top: auto;
  color: var(--cedar);
  font-size: 12px;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.insight-card em::after {
  content: "";
  width: 34px;
  height: 1px;
  margin: 11px 0 0 12px;
  background: currentColor;
  transition: width 180ms ease;
}

.insight-card:hover em::after {
  width: 48px;
}

.follow-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 72px;
  align-items: center;
}

.follow-copy h2 {
  margin-bottom: 28px;
}

.follow-copy p:not(.eyebrow) {
  max-width: 660px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 21px;
  font-weight: 300;
  line-height: 1.82;
}

.qr-card {
  display: grid;
  gap: 20px;
  justify-items: center;
  padding: 24px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 2px;
  box-shadow: 0 20px 70px rgba(17, 20, 17, 0.08);
}

.qr-card img {
  width: 212px;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--white);
}

.qr-card div {
  display: grid;
  gap: 6px;
  justify-items: center;
}

.qr-card span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.qr-card strong {
  font-size: 22px;
  font-weight: 600;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: 96px;
  align-items: start;
}

.contact-copy h2 {
  margin-bottom: 28px;
}

.contact-copy > p:not(.eyebrow) {
  max-width: 620px;
  color: var(--muted);
  font-size: 24px;
  font-weight: 300;
  line-height: 1.78;
}

.contact-channels {
  display: grid;
  gap: 0;
  margin-top: 42px;
  border-top: 1px solid var(--line);
}

.contact-channel {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.contact-channel span {
  color: var(--copper);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.contact-channel strong {
  color: var(--ink);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.feishu-form {
  display: grid;
  gap: 20px;
  min-height: 420px;
  align-content: center;
  padding: 42px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
  box-shadow: 0 24px 80px rgba(17, 20, 17, 0.08);
}

.form-kicker {
  margin-bottom: 22px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.feishu-form h3 {
  margin-bottom: 0;
}

.feishu-form p:not(.form-kicker) {
  max-width: 420px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 18px;
  font-weight: 300;
  line-height: 1.78;
}

.feishu-form .button {
  width: fit-content;
  color: var(--white);
  background: var(--ink);
}

.growth-engine .button-primary {
  color: var(--white);
  background: var(--ink);
}

.site-footer {
  display: grid;
  grid-template-columns: 1.4fr 1fr auto;
  gap: 28px;
  align-items: end;
  padding: 44px 56px;
  color: rgba(255, 255, 255, 0.72);
  background: var(--ink);
}

.site-footer strong {
  display: block;
  margin-bottom: 8px;
  color: var(--white);
  font-size: 18px;
  font-weight: 600;
}

.site-footer p,
.site-footer small {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 920px) {
  .site-nav {
    position: fixed;
    inset: 76px 14px auto;
    display: grid;
    gap: 0;
    padding: 12px;
    background: rgba(251, 251, 247, 0.98);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    transform: translateY(-18px);
    opacity: 0;
    pointer-events: none;
    color: var(--ink);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  body.menu-open .site-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 14px;
  }

  .nav-cta {
    margin-top: 6px;
    color: var(--white) !important;
    background: var(--ink);
    text-align: center;
  }

  .menu-toggle {
    display: block;
  }

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

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.7fr);
    gap: 28px;
    padding-top: 118px;
  }

  h1 {
    font-size: 54px;
  }

  h2 {
    font-size: 44px;
  }

  h3 {
    font-size: 24px;
  }

  .hero-lede,
  .service-intro,
  .service-item p,
  .contact-copy > p:not(.eyebrow) {
    font-size: 19px;
  }

  .philosophy,
  .services,
  .about,
  .insights,
  .follow,
  .contact {
    padding: 112px 0;
  }

  .section-heading {
    margin-bottom: 48px;
  }

  .hero-visual {
    min-height: 470px;
  }

  .belief-grid,
  .insight-grid {
    grid-template-columns: 1fr;
  }

  .belief-card,
  .insight-card {
    min-height: auto;
  }

  .belief-card span,
  .insight-card span {
    margin-bottom: 34px;
  }

  .service-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-item strong {
    align-self: auto;
  }

  .growth-engine {
    grid-template-columns: 1fr;
  }

  .follow-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .qr-card {
    width: fit-content;
  }

  .team-strip {
    grid-column: auto;
  }

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

@media (max-width: 760px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 430px;
  }
}

@media (max-width: 560px) {
  .section-shell {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    height: 68px;
    padding: 0 14px;
  }

  .brand-mark {
    min-width: 138px;
  }

  .site-nav {
    inset: 68px 14px auto;
  }

  .hero {
    min-height: auto;
    padding-bottom: 56px;
  }

  h1 {
    font-size: 39px;
    line-height: 1.18;
  }

  h2 {
    font-size: 34px;
  }

  h3 {
    font-size: 22px;
  }

  .eyebrow {
    font-size: 10px;
  }

  .hero-lede,
  .service-intro,
  .service-item p,
  .follow-copy p:not(.eyebrow),
  .contact-copy > p:not(.eyebrow) {
    font-size: 18px;
    line-height: 1.72;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 520px;
  }

  .visual-caption {
    display: none;
  }

  .visual-modules {
    top: 55%;
    width: calc(100% - 64px);
    grid-template-columns: 1fr;
  }

  .visual-module {
    min-height: 112px;
    border-right: 0;
    border-bottom: 1px solid rgba(250, 247, 239, 0.12);
  }

  .visual-module:last-child {
    border-bottom: 0;
  }

  .visual-module span {
    margin-bottom: 18px;
    font-size: 20px;
  }

  .about-copy {
    font-size: 17px;
  }

  .about-copy p:first-child {
    font-size: 21px;
  }

  .team-strip {
    grid-template-columns: 1fr;
  }

  .feishu-form {
    min-height: auto;
    padding: 28px;
  }
}