:root {
  --forest-950: #183327;
  --forest-900: #234536;
  --forest-800: #315b46;
  --forest-700: #3f6d55;
  --linen-50: #fbf9f4;
  --linen-100: #f6f2e9;
  --linen-200: #e8e2d5;
  --ink: #17241d;
  --muted: #5f6a63;
  --gold: #a58b4b;
  --gold-light: #c7ad69;
  --white: #fffef9;
  --line: rgba(35, 69, 54, 0.19);
  --radius-sm: 14px;
  --radius-md: 24px;
  --radius-lg: 36px;
  --shadow: 0 24px 60px rgba(24, 51, 39, 0.08);
  --container: 1180px;
  --font: "Nunito Sans", "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--linen-50);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

button {
  font: inherit;
}

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

h1,
h2,
h3 {
  color: var(--forest-950);
  font-weight: 650;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 760px;
  margin-bottom: 26px;
  font-size: clamp(3rem, 6.8vw, 6.4rem);
  line-height: 1.03;
}

h1 em {
  display: block;
  color: var(--forest-700);
  font-style: normal;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.15rem, 4.4vw, 4rem);
  line-height: 1.12;
}

h3 {
  margin-bottom: 9px;
  font-size: 1.35rem;
  line-height: 1.35;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 16px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--forest-950);
  border-radius: 10px;
  transform: translateY(-150%);
}

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

.container,
.nav-shell {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: 108px 0;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  border-bottom: 1px solid transparent;
  background: rgba(251, 249, 244, 0.9);
  backdrop-filter: blur(16px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 8px 30px rgba(24, 51, 39, 0.05);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--forest-950);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--forest-800);
  border-radius: 50%;
}

.brand-mark::before,
.brand-mark::after,
.brand-mark span {
  position: absolute;
  display: block;
  content: "";
  background: var(--forest-800);
  border-radius: 999px;
}

.brand-mark::before {
  width: 16px;
  height: 2px;
}

.brand-mark::after {
  width: 2px;
  height: 16px;
}

.brand-mark span {
  width: 6px;
  height: 6px;
  background: var(--gold);
  transform: rotate(45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #405048;
  font-size: 0.94rem;
  font-weight: 600;
}

.site-nav a:not(.nav-cta) {
  position: relative;
  padding: 12px 0;
}

.site-nav a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  background: var(--gold);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:not(.nav-cta):hover::after,
.site-nav a:not(.nav-cta):focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 9px 18px;
  color: var(--white);
  background: var(--forest-900);
  border: 1px solid var(--forest-900);
  border-radius: 999px;
  transition: background-color 180ms ease, transform 180ms ease;
}

.nav-cta:hover {
  background: var(--forest-700);
  transform: translateY(-1px);
}

.menu-button {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
}

.menu-button > span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--forest-950);
  border-radius: 999px;
  transition: transform 180ms ease;
}

.menu-button[aria-expanded="true"] > span:nth-child(2) {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-button[aria-expanded="true"] > span:nth-child(3) {
  transform: translateY(-3.5px) rotate(-45deg);
}

.hero {
  min-height: 780px;
  padding-top: 170px;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  top: 108px;
  right: -150px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(165, 139, 75, 0.25);
  border-radius: 50%;
  content: "";
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
  gap: clamp(48px, 8vw, 112px);
  align-items: center;
}

.eyebrow,
.section-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  color: var(--forest-700);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.2em;
}

.eyebrow span {
  width: 28px;
  height: 1px;
  background: var(--gold);
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 36px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.24rem);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-bottom: 52px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 700;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button-primary {
  color: var(--white);
  background: var(--forest-900);
  border-color: var(--forest-900);
}

.button-primary:hover {
  background: var(--forest-700);
  border-color: var(--forest-700);
  transform: translateY(-2px);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 10px 2px;
  color: var(--forest-900);
  border-bottom: 1px solid var(--line);
  font-size: 0.94rem;
  font-weight: 700;
}

.text-link span {
  transition: transform 180ms ease;
}

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

.value-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  padding: 0;
  margin: 0;
  color: #69746d;
  font-size: 0.82rem;
  list-style: none;
}

.value-list li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.value-list li::before {
  width: 5px;
  height: 5px;
  background: var(--gold);
  border-radius: 50%;
  content: "";
}

.hero-art {
  position: relative;
  isolation: isolate;
}

.hero-art::before {
  position: absolute;
  z-index: -1;
  right: -20px;
  bottom: -22px;
  width: 75%;
  height: 50%;
  background-image: radial-gradient(rgba(49, 91, 70, 0.32) 1px, transparent 1px);
  background-size: 14px 14px;
  content: "";
}

.hero-art img {
  width: 100%;
  border: 1px solid rgba(35, 69, 54, 0.11);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.art-note {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 165px;
  padding: 13px 16px;
  color: var(--forest-950);
  background: rgba(255, 254, 249, 0.94);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(24, 51, 39, 0.09);
  font-size: 0.81rem;
  font-weight: 700;
}

.art-note span {
  color: #806d37;
  font-size: 0.7rem;
}

.note-top {
  top: 14%;
  left: -8%;
}

.note-bottom {
  right: -5%;
  bottom: 12%;
}

.capabilities {
  background: var(--linen-100);
  border-top: 1px solid rgba(35, 69, 54, 0.08);
  border-bottom: 1px solid rgba(35, 69, 54, 0.08);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.44fr);
  gap: 70px;
  align-items: end;
  margin-bottom: 64px;
}

.section-heading > p {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}

.section-kicker {
  margin-bottom: 18px;
}

.section-kicker::before {
  width: 7px;
  height: 7px;
  background: var(--gold);
  border-radius: 50%;
  content: "";
}

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

.capability-card {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) minmax(280px, auto);
  gap: 28px;
  align-items: center;
  min-height: 168px;
  padding: 34px 10px;
  border-bottom: 1px solid var(--line);
  transition: padding 180ms ease, background-color 180ms ease;
}

.capability-card:hover {
  padding-right: 22px;
  padding-left: 22px;
  background: rgba(255, 254, 249, 0.58);
}

.card-number {
  align-self: start;
  padding-top: 5px;
  color: #806d37;
  font-size: 0.78rem;
  font-weight: 750;
}

.card-body p {
  max-width: 630px;
  margin-bottom: 0;
  color: var(--muted);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.tag-list li,
.scenario-result {
  padding: 6px 12px;
  color: var(--forest-800);
  border: 1px solid rgba(49, 91, 70, 0.22);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 650;
  line-height: 1.5;
  white-space: nowrap;
}

.method-section {
  padding: 56px 0;
  background: var(--linen-50);
}

.method-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(390px, 1.1fr);
  gap: 100px;
  padding: clamp(54px, 7vw, 96px);
  color: rgba(255, 254, 249, 0.74);
  background: var(--forest-900);
  border-radius: var(--radius-lg);
}

.section-kicker-light {
  color: var(--gold-light);
}

.method-intro h2 {
  margin-bottom: 30px;
  color: var(--white);
}

.method-intro > p:last-child {
  max-width: 480px;
  margin-bottom: 0;
}

.method-steps {
  padding: 0;
  margin: 0;
  list-style: none;
}

.method-steps li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 20px;
  padding: 0 0 27px;
  margin-bottom: 27px;
  border-bottom: 1px solid rgba(255, 254, 249, 0.16);
}

.method-steps li:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.step-index {
  color: var(--gold-light);
  font-size: 0.72rem;
  font-weight: 750;
}

.method-steps h3 {
  margin-bottom: 4px;
  color: var(--white);
  font-size: 1.18rem;
}

.method-steps p {
  margin-bottom: 0;
  color: rgba(255, 254, 249, 0.67);
  font-size: 0.92rem;
}

.compact-heading {
  grid-template-columns: minmax(0, 820px);
  margin-bottom: 52px;
}

.scenario-list {
  display: grid;
  gap: 14px;
}

.scenario-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  gap: 30px;
  align-items: center;
  padding: 30px 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color 180ms ease, transform 180ms ease;
}

.scenario-row:hover {
  border-color: rgba(165, 139, 75, 0.55);
  transform: translateY(-2px);
}

.scenario-icon {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  color: var(--forest-800);
  background: var(--linen-100);
  border: 1px solid var(--line);
  border-radius: 50%;
  font-weight: 750;
}

.scenario-row h3 {
  margin-bottom: 6px;
}

.scenario-row p {
  margin-bottom: 0;
  color: var(--muted);
}

.scenario-result {
  color: #6e5b29;
  border-color: rgba(165, 139, 75, 0.4);
}

.about-section {
  background: var(--linen-200);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(70px, 12vw, 160px);
}

.about-statement {
  position: relative;
}

.about-statement::after {
  display: block;
  width: 88px;
  height: 2px;
  margin-top: 44px;
  background: var(--gold);
  content: "";
}

.large-copy {
  margin-bottom: 24px;
  color: var(--forest-900);
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  font-weight: 650;
  line-height: 1.55;
}

.about-copy > p:not(.large-copy) {
  color: var(--muted);
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-top: 28px;
  margin: 38px 0 0;
  border-top: 1px solid var(--line);
}

.principles div {
  padding-right: 14px;
}

.principles dt {
  margin-bottom: 4px;
  color: var(--forest-900);
  font-size: 1rem;
  font-weight: 750;
}

.principles dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.start-section {
  padding-bottom: 42px;
}

.start-panel {
  display: grid;
  grid-template-columns: minmax(0, 760px) auto;
  gap: 40px;
  align-items: end;
  padding: clamp(38px, 6vw, 76px);
  background: var(--linen-100);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.start-panel h2 {
  margin-bottom: 22px;
}

.start-panel p:last-child {
  max-width: 660px;
  margin-bottom: 0;
  color: var(--muted);
}

.start-panel .button {
  white-space: nowrap;
}

.back-top {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 12px;
  margin: 28px 0 0 auto;
  color: var(--forest-700);
  font-size: 0.82rem;
  font-weight: 700;
}

@media (max-width: 980px) {
  .section {
    padding: 88px 0;
  }

  .site-nav {
    gap: 22px;
  }

  .hero {
    padding-top: 145px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 70px;
  }

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

  .hero-art {
    width: min(78%, 620px);
    margin-left: auto;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-heading > p {
    max-width: 680px;
  }

  .capability-card {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .tag-list {
    grid-column: 2;
    justify-content: flex-start;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 58px;
  }

  .about-statement h2 br {
    display: none;
  }

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

  .start-panel .button {
    width: fit-content;
  }
}

@media (max-width: 760px) {
  .container,
  .nav-shell {
    width: min(calc(100% - 32px), var(--container));
  }

  .nav-shell {
    min-height: 70px;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 70px;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 28px 24px 40px;
    overflow-y: auto;
    background: var(--linen-50);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 180ms ease, visibility 180ms ease, transform 180ms ease;
  }

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

  .site-nav a:not(.nav-cta) {
    padding: 17px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 1.1rem;
  }

  .nav-cta {
    justify-content: center;
    margin-top: 28px;
    padding: 13px 20px;
    text-align: center;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    min-height: 0;
    padding-top: 125px;
  }

  .hero::before {
    display: none;
  }

  h1 {
    font-size: clamp(2.7rem, 13vw, 4.4rem);
  }

  h2 {
    font-size: clamp(2rem, 9vw, 3rem);
  }

  .hero-actions {
    align-items: flex-start;
  }

  .hero-art {
    width: calc(100% - 18px);
    margin: 0 auto;
  }

  .art-note {
    min-width: 0;
    padding: 10px 12px;
    font-size: 0.72rem;
  }

  .note-top {
    left: -3%;
  }

  .note-bottom {
    right: -3%;
  }

  .section-heading {
    margin-bottom: 44px;
  }

  .capability-card {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 16px;
    padding: 28px 0;
  }

  .capability-card:hover {
    padding-right: 0;
    padding-left: 0;
  }

  .method-section {
    padding: 20px 0;
  }

  .method-panel {
    gap: 48px;
    padding: 48px 28px;
    border-radius: 28px;
  }

  .scenario-row {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 18px;
    padding: 26px 22px;
  }

  .scenario-icon {
    width: 50px;
    height: 50px;
  }

  .scenario-result {
    grid-column: 2;
    width: fit-content;
  }

  .principles {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .principles div {
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 10px;
    align-items: baseline;
  }

  .start-panel {
    padding: 40px 24px;
    border-radius: 26px;
  }
}

@media (max-width: 520px) {
  .brand-name {
    max-width: 154px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .hero-actions {
    flex-direction: column;
    gap: 18px;
  }

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

  .value-list {
    display: grid;
  }

  .hero-art::before {
    display: none;
  }

  .art-note {
    position: static;
    display: inline-flex;
    margin-top: 10px;
    margin-right: 6px;
    box-shadow: none;
  }

  .capability-card {
    grid-template-columns: 1fr;
  }

  .card-number,
  .tag-list {
    grid-column: 1;
  }

  .method-panel {
    padding: 42px 22px;
  }

  .method-intro h2 br {
    display: none;
  }

  .method-steps li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .scenario-row {
    grid-template-columns: 1fr;
  }

  .scenario-result {
    grid-column: 1;
  }

  .start-panel .button {
    width: 100%;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}