:root {
  --navy: #111A30;
  --ivory: #F7F4ED;
  --gold: #B59A64;
  --ink: #050505;
  --navy-soft: #1b2742;
  --ivory-muted: rgba(247, 244, 237, 0.66);
  --ink-muted: rgba(5, 5, 5, 0.62);
  --line-dark: rgba(5, 5, 5, 0.17);
  --line-light: rgba(181, 154, 100, 0.28);
  --shell: min(88vw, 1440px);
  --header-height: 84px;
  --sans: Bahnschrift, "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --serif-cn: "Songti SC", STSong, SimSun, serif;
  color-scheme: light dark;
}

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

html {
  scroll-behavior: smooth;
  background: var(--navy);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  color: var(--ink);
  background: var(--ivory);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -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;
}

:focus-visible {
  outline: 1px solid var(--gold);
  outline-offset: 5px;
}

::selection {
  color: var(--navy);
  background: var(--gold);
}

.visually-hidden {
  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;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--navy);
  background: var(--ivory);
  font-size: 12px;
  letter-spacing: 0.08em;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  display: flex;
  width: 100%;
  height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  padding: 0 4.6vw;
  color: var(--ivory);
  border-bottom: 1px solid transparent;
  transition: background-color 320ms ease, border-color 320ms ease, height 320ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  height: 72px;
  background: rgba(17, 26, 48, 0.96);
  border-color: var(--line-light);
  backdrop-filter: blur(14px);
}

.site-header.is-open {
  backdrop-filter: none;
}

.header-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  overflow: visible;
  background: transparent;
  border-radius: 0;
}

.header-mark img {
  width: 42px;
  height: 42px;
  filter: brightness(0) invert(1);
}

.site-navigation {
  display: flex;
  align-items: center;
  gap: clamp(24px, 3vw, 54px);
}

.site-navigation a {
  position: relative;
  padding: 8px 0;
  color: rgba(247, 244, 237, 0.8);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-navigation a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--gold);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

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

.site-navigation span {
  margin-right: 7px;
  color: var(--gold);
  font-size: 9px;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--ivory);
  background: none;
  border: 0;
  font: 500 11px/1 var(--sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
}

.menu-icon {
  display: grid;
  width: 22px;
  gap: 5px;
}

.menu-icon i {
  display: block;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: transform 200ms ease;
}

.hero {
  position: relative;
  min-height: max(720px, 100svh);
  overflow: hidden;
  color: var(--ivory);
  background: var(--navy);
  isolation: isolate;
}

.hero-field {
  position: absolute;
  top: 11%;
  left: 50%;
  z-index: -1;
  width: min(76vw, 1100px);
  height: min(76vw, 1100px);
  border: 1px solid rgba(181, 154, 100, 0.08);
  border-radius: 50%;
  transform: translateX(-50%);
}

.hero-field::before,
.hero-field::after {
  position: absolute;
  inset: 8%;
  border: 1px solid rgba(181, 154, 100, 0.055);
  border-radius: inherit;
  content: "";
}

.hero-field::after {
  inset: 20%;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  width: var(--shell);
  min-height: max(590px, calc(100svh - clamp(170px, 18vw, 260px)));
  margin: 0 auto;
  padding: calc(var(--header-height) + 52px) 0 54px;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.eyebrow,
.section-index {
  margin: 0;
  color: var(--gold);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero-eyebrow {
  margin-bottom: clamp(20px, 3vh, 38px);
}

.hero-signature {
  width: min(68vw, 760px);
  height: auto;
  filter: brightness(0) invert(1);
  opacity: 0;
  animation: signature-enter 1000ms 180ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-maxim {
  margin-top: clamp(22px, 3.5vh, 42px);
  opacity: 0;
  animation: maxim-enter 800ms 520ms ease forwards;
}

.hero-maxim p {
  margin: 0;
}

.hero-maxim p:first-child {
  font-family: var(--serif-cn);
  font-size: clamp(20px, 2vw, 29px);
  letter-spacing: 0.18em;
}

.hero-maxim p:last-child {
  margin-top: 8px;
  color: var(--ivory-muted);
  font-size: clamp(9px, 0.8vw, 12px);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-ornament {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  z-index: 1;
  height: clamp(156px, 16.56vw, 239px);
  opacity: 0;
  animation: ornament-enter 1200ms 260ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-ornament img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center bottom;
}

.scroll-cue {
  position: absolute;
  right: 4.6vw;
  bottom: clamp(182px, calc(16.56vw + 25px), 265px);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ivory-muted);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.scroll-cue i {
  display: block;
  width: 38px;
  height: 1px;
  background: var(--gold);
  transition: width 200ms ease;
}

.scroll-cue:hover i {
  width: 52px;
}

.section {
  position: relative;
  scroll-margin-top: 72px;
}

.section-shell {
  width: var(--shell);
  margin: 0 auto;
}

.section-light {
  color: var(--ink);
  background: var(--ivory);
}

.section-navy {
  color: var(--ivory);
  background: var(--navy);
}

#purpose {
  padding: clamp(110px, 13vw, 200px) 0 clamp(120px, 15vw, 230px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(170px, 0.8fr) minmax(360px, 2.3fr) minmax(260px, 1fr);
  column-gap: clamp(30px, 5vw, 90px);
  align-items: start;
}

.section-heading h2 {
  margin: -0.12em 0 0;
  font-size: clamp(42px, 5.1vw, 82px);
  font-weight: 470;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.section-intro {
  margin: 0;
  color: var(--ink-muted);
  font-family: var(--serif-cn);
  font-size: clamp(15px, 1.2vw, 19px);
  letter-spacing: 0.08em;
  line-height: 2;
}

.principles {
  display: grid;
  margin-top: clamp(90px, 10vw, 150px);
  border-top: 1px solid var(--line-dark);
  grid-template-columns: repeat(3, 1fr);
}

.principle {
  min-height: 390px;
  padding: 32px clamp(26px, 3vw, 52px) 20px 0;
  border-right: 1px solid var(--line-dark);
}

.principle + .principle {
  padding-left: clamp(26px, 3vw, 52px);
}

.principle:last-child {
  padding-right: 0;
  border-right: 0;
}

.principle-number,
.item-index {
  margin: 0 0 62px;
  color: var(--gold);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.principle h3,
.stewardship-list h3 {
  margin: 0;
  font-size: clamp(25px, 2.4vw, 38px);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.principle-cn,
.item-cn {
  margin: 2px 0 28px;
  color: var(--gold);
  font-family: var(--serif-cn);
  font-size: 14px;
  letter-spacing: 0.22em;
}

.principle > p:not(.principle-number, .principle-cn) {
  max-width: 31ch;
  margin: 0 0 14px;
  color: var(--ink-muted);
  font-size: 13px;
  line-height: 1.75;
}

.principle > p[lang="zh-CN"] {
  font-family: var(--serif-cn);
  letter-spacing: 0.05em;
}

#stewardship {
  padding: clamp(120px, 14vw, 220px) 0 clamp(110px, 13vw, 200px);
}

.section-navy .section-heading h2 {
  grid-column: 2;
}

.section-heading-split {
  grid-template-columns: 1fr 1fr;
}

.section-heading-split > div {
  grid-column: 1;
}

.section-heading-split h2 {
  margin-top: 34px;
}

.section-navy .section-intro {
  max-width: 33ch;
  color: var(--ivory-muted);
  grid-column: 2;
  justify-self: end;
}

.stewardship-list {
  margin-top: clamp(90px, 10vw, 150px);
  border-top: 1px solid var(--line-light);
}

.stewardship-list article {
  display: grid;
  min-height: 168px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line-light);
  grid-template-columns: 0.35fr 1.25fr 0.65fr 1fr;
  gap: 24px;
  align-items: center;
  transition: padding 260ms ease, background-color 260ms ease;
}

.stewardship-list article:hover {
  padding-right: 18px;
  padding-left: 18px;
  background: rgba(247, 244, 237, 0.025);
}

.stewardship-list .item-index {
  margin: 0;
}

.stewardship-list .item-cn {
  margin: 0;
}

.stewardship-list article > p:last-child {
  max-width: 36ch;
  margin: 0;
  color: var(--ivory-muted);
  font-size: 13px;
  line-height: 1.8;
}

.horizon {
  padding: clamp(120px, 15vw, 230px) 0;
}

.horizon-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(70px, 11vw, 180px);
}

.horizon .section-heading {
  display: block;
}

.horizon .section-heading h2 {
  margin-top: 42px;
}

.horizon-copy {
  padding-top: 48px;
  border-top: 1px solid var(--line-dark);
}

.horizon-copy .lead {
  margin: 0;
  font-size: clamp(22px, 2.2vw, 34px);
  font-weight: 420;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.horizon-copy > p[lang="zh-CN"] {
  margin: 32px 0 0;
  color: var(--ink-muted);
  font-family: var(--serif-cn);
  font-size: 15px;
  letter-spacing: 0.06em;
  line-height: 2;
}

.criteria {
  display: flex;
  margin-top: 54px;
  flex-wrap: wrap;
  gap: 10px;
}

.criteria span {
  padding: 8px 13px;
  border: 1px solid var(--line-dark);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contact {
  overflow: hidden;
  color: var(--ivory);
  background: var(--navy);
}

.contact-rule {
  width: 100%;
  height: 5px;
  background: var(--gold);
}

.contact-grid {
  display: grid;
  min-height: 560px;
  padding: clamp(110px, 13vw, 190px) 0;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(70px, 12vw, 190px);
  align-items: center;
}

.contact h2 {
  margin: 40px 0 0;
  font-size: clamp(48px, 6.1vw, 94px);
  font-weight: 450;
  letter-spacing: -0.05em;
  line-height: 0.98;
}

.contact-action {
  padding-top: 38px;
  border-top: 1px solid var(--line-light);
}

.contact-action p {
  margin: 0 0 48px;
  color: var(--ivory-muted);
  font-family: var(--serif-cn);
  font-size: 15px;
  letter-spacing: 0.06em;
  line-height: 2;
}

.contact-action a {
  display: flex;
  padding: 0 0 16px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--gold);
  font-size: clamp(17px, 1.7vw, 25px);
  letter-spacing: 0.02em;
}

.contact-action i {
  color: var(--gold);
  font-style: normal;
  transition: transform 200ms ease;
}

.contact-action a:hover i {
  transform: translate(4px, -4px);
}

.site-footer {
  display: grid;
  width: var(--shell);
  min-height: 112px;
  margin: 0 auto;
  padding: 30px 0;
  border-top: 1px solid var(--line-light);
  grid-template-columns: 170px 1fr auto;
  gap: 40px;
  align-items: center;
}

.site-footer img {
  width: 150px;
  height: auto;
  filter: brightness(0) invert(1);
}

.site-footer p {
  margin: 0;
  color: var(--ivory-muted);
  font-size: 9px;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.site-footer p:last-child {
  text-align: right;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

@keyframes signature-enter {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes maxim-enter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ornament-enter {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 980px) {
  :root {
    --shell: min(88vw, 760px);
  }

  .section-heading {
    grid-template-columns: 1fr 2.2fr;
  }

  .section-heading .section-intro {
    grid-column: 2;
    margin-top: 38px;
  }

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

  .principle,
  .principle + .principle {
    display: grid;
    min-height: 0;
    padding: 30px 0 46px;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
    grid-template-columns: 0.35fr 1fr 1fr;
    column-gap: 24px;
  }

  .principle-number {
    grid-row: span 3;
    margin: 0;
  }

  .principle-cn {
    grid-column: 2;
  }

  .principle > p:not(.principle-number, .principle-cn) {
    grid-column: 3;
  }

  .section-heading-split,
  .horizon-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .section-navy .section-intro {
    grid-column: 1;
    justify-self: start;
  }

  .stewardship-list article {
    grid-template-columns: 0.25fr 1fr 0.5fr;
  }

  .stewardship-list article > p:last-child {
    grid-column: 2 / -1;
  }

  .horizon-copy {
    width: 76%;
    margin-left: auto;
  }

  .contact-grid {
    gap: 86px;
  }
}

@media (max-width: 720px) {
  :root {
    --header-height: 70px;
    --shell: 88vw;
  }

  .site-header,
  .site-header.is-scrolled,
  .site-header.is-open {
    height: var(--header-height);
    padding: 0 6vw;
  }

  .header-mark {
    width: 38px;
    height: 38px;
  }

  .header-mark img {
    width: 38px;
    height: 38px;
  }

  .menu-toggle {
    display: flex;
    z-index: 2;
  }

  .menu-toggle[aria-expanded="true"] .menu-icon i:first-child {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-icon i:last-child {
    transform: translateY(-3px) rotate(-45deg);
  }

  .site-navigation {
    position: fixed;
    inset: 0;
    display: flex;
    padding: 116px 8vw 64px;
    align-items: stretch;
    flex-direction: column;
    justify-content: center;
    gap: 0;
    visibility: hidden;
    background: var(--navy);
    opacity: 0;
    transition: opacity 220ms ease, visibility 220ms ease;
  }

  .site-navigation.is-open {
    visibility: visible;
    opacity: 1;
  }

  .site-navigation a {
    display: flex;
    padding: 24px 0;
    align-items: baseline;
    border-bottom: 1px solid var(--line-light);
    font-size: clamp(25px, 8vw, 38px);
    font-weight: 420;
    letter-spacing: -0.02em;
    text-transform: none;
  }

  .site-navigation span {
    width: 46px;
    font-size: 10px;
  }

  .hero {
    min-height: max(680px, 100svh);
  }

  .hero-field {
    top: 20%;
    width: 130vw;
    height: 130vw;
  }

  .hero-content {
    min-height: max(520px, calc(100svh - 160px));
    padding-top: 108px;
    padding-bottom: 44px;
  }

  .hero-signature {
    width: min(88vw, 540px);
  }

  .hero-eyebrow {
    margin-bottom: 12px;
    font-size: 9px;
  }

  .hero-maxim p:first-child {
    font-size: 19px;
    letter-spacing: 0.12em;
  }

  .hero-maxim p:last-child {
    max-width: 30ch;
    margin: 8px auto 0;
    line-height: 1.55;
  }

  .hero-ornament {
    height: 160px;
  }

  .hero-ornament img {
    width: 1360px;
    max-width: none;
    margin-left: 50%;
    transform: translateX(-50%);
    object-fit: cover;
    object-position: center;
  }

  .scroll-cue {
    display: none;
  }

  #purpose,
  #stewardship,
  .horizon {
    padding: 100px 0;
  }

  .section-heading {
    display: block;
  }

  .section-heading h2,
  .section-heading-split h2,
  .horizon .section-heading h2 {
    margin-top: 32px;
    font-size: clamp(39px, 12vw, 58px);
  }

  .section-heading .section-intro,
  .section-navy .section-intro {
    margin-top: 38px;
  }

  .principles {
    margin-top: 72px;
  }

  .principle,
  .principle + .principle {
    display: block;
    padding: 26px 0 42px;
  }

  .principle-number,
  .item-index {
    margin-bottom: 36px;
  }

  .principle-cn {
    margin-bottom: 24px;
  }

  .principle > p:not(.principle-number, .principle-cn) {
    max-width: 40ch;
  }

  .stewardship-list {
    margin-top: 70px;
  }

  .stewardship-list article {
    display: grid;
    padding: 28px 0 34px;
    grid-template-columns: 42px 1fr;
    gap: 0 14px;
  }

  .stewardship-list article:hover {
    padding-right: 0;
    padding-left: 0;
  }

  .stewardship-list .item-index {
    grid-row: span 3;
  }

  .stewardship-list .item-cn,
  .stewardship-list article > p:last-child {
    grid-column: 2;
  }

  .stewardship-list .item-cn {
    margin: 3px 0 18px;
  }

  .horizon-grid {
    gap: 72px;
  }

  .horizon-copy {
    width: 100%;
    padding-top: 34px;
  }

  .criteria {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-grid {
    min-height: 0;
    padding: 100px 0;
    gap: 76px;
  }

  .contact h2 {
    font-size: clamp(44px, 13vw, 62px);
  }

  .site-footer {
    display: flex;
    min-height: 0;
    padding: 34px 0 42px;
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .site-footer img {
    width: 132px;
  }

  .site-footer p:last-child {
    text-align: left;
  }
}

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

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

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}