@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700;900&family=Playfair+Display:ital,wght@0,600;1,600&display=swap");

:root {
  --ink: #17231f;
  --forest: #12352f;
  --forest-deep: #08231f;
  --cream: #f2eee5;
  --paper: #fbfaf7;
  --coral: #ff6b45;
  --lime: #d7f477;
  --mist: #d8e1dc;
  --line: rgba(23, 35, 31, 0.16);
  --white-line: rgba(255, 255, 255, 0.18);
  --content: min(1220px, calc(100vw - 48px));
  --display: "Noto Sans SC", "DM Sans", sans-serif;
  --serif: "Playfair Display", Georgia, serif;
  --body: "DM Sans", "Noto Sans SC", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

body.lang-en-active .lang-zh,
body:not(.lang-en-active) .lang-en {
  display: none !important;
}

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

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

button,
input,
textarea {
  font: inherit;
}

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

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

.sr-only,
.skip-link {
  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:focus {
  z-index: 2000;
  width: auto;
  height: auto;
  padding: 12px 18px;
  margin: 8px;
  clip: auto;
  background: var(--lime);
  color: var(--forest-deep);
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 36px;
  height: 84px;
  padding: 0 max(24px, calc((100vw - 1440px) / 2));
  color: white;
  transition: background 260ms ease, color 260ms ease, height 260ms ease, box-shadow 260ms ease;
}

.site-header.scrolled {
  height: 70px;
  color: var(--ink);
  background: rgba(251, 250, 247, 0.94);
  box-shadow: 0 8px 32px rgba(8, 35, 31, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.brand-mark {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 21px;
  font-style: italic;
  line-height: 1;
}

.brand-word {
  font-size: 14px;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(22px, 3.2vw, 48px);
  font-size: 13px;
  font-weight: 600;
}

.site-nav a {
  position: relative;
  padding: 9px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 1px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.language-button {
  border: 0;
  padding: 9px;
  color: inherit;
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  padding: 9px;
  color: inherit;
  background: transparent;
}

.menu-button span:not(.sr-only) {
  display: block;
  width: 23px;
  height: 1px;
  margin: 6px 0;
  background: currentColor;
}

.button {
  display: inline-flex;
  min-height: 55px;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

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

.button-small {
  min-height: 42px;
  padding: 0 20px;
  font-size: 12px;
}

.button-light {
  border-color: rgba(255, 255, 255, 0.5);
  color: white;
  background: rgba(255, 255, 255, 0.06);
}

.scrolled .button-light {
  border-color: var(--forest);
  color: var(--forest);
}

.button-accent {
  color: var(--forest-deep);
  background: var(--lime);
}

.button-cream {
  color: var(--forest-deep);
  background: var(--cream);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  color: white;
  background: var(--forest-deep);
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center 48%;
  transform: scale(1.03);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(4, 27, 23, 0.9) 0%, rgba(4, 27, 23, 0.6) 46%, rgba(4, 27, 23, 0.18) 100%),
    linear-gradient(0deg, rgba(4, 27, 23, 0.65) 0%, transparent 48%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: var(--content);
  margin: 0 auto;
  padding-top: clamp(148px, 20vh, 220px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow-line {
  width: 40px;
  height: 1px;
  background: currentColor;
}

.hero h1 {
  max-width: 850px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(58px, 8.7vw, 126px);
  font-weight: 900;
  letter-spacing: -0.065em;
  line-height: 0.96;
}

body.lang-en-active .hero h1,
body.lang-en-active h2 {
  font-family: var(--serif);
  font-style: italic;
  letter-spacing: -0.04em;
}

.hero-copy {
  max-width: 610px;
  margin: 34px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(16px, 1.4vw, 20px);
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-top: 40px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid currentColor;
  padding: 8px 0;
  font-size: 13px;
  font-weight: 700;
}

.light-link {
  color: white;
}

.hero-note {
  position: absolute;
  z-index: 3;
  right: max(24px, calc((100vw - 1440px) / 2));
  bottom: 36px;
  display: flex;
  width: min(360px, 32vw);
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.42);
  padding-top: 16px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 12px;
}

.hero-note span:first-child {
  color: var(--lime);
  font-weight: 700;
}

.hero-note p {
  margin: 0;
}

.scroll-cue {
  position: absolute;
  z-index: 3;
  bottom: 30px;
  left: 50%;
  display: grid;
  width: 36px;
  height: 54px;
  place-items: start center;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 30px;
  padding-top: 11px;
}

.scroll-cue span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: white;
  animation: scroll 1.8s ease-in-out infinite;
}

@keyframes scroll {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(18px); opacity: 1; }
}

.section {
  padding: 112px max(24px, calc((100vw - 1440px) / 2));
}

.section-kicker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.17em;
}

.section-kicker.light {
  border-color: var(--white-line);
  color: rgba(255, 255, 255, 0.65);
}

.section-number {
  letter-spacing: 0;
}

.manifesto {
  background: var(--cream);
}

.manifesto-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 10vw;
  padding: 95px 0 108px;
}

h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(48px, 6.4vw, 92px);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1.02;
}

.manifesto-copy {
  align-self: end;
  font-size: 17px;
}

.manifesto-copy p {
  margin: 0 0 24px;
}

.manifesto-copy p:first-child {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.4;
}

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

.value-strip > div {
  display: flex;
  min-height: 138px;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line);
  padding: 0 28px;
}

.value-strip > div:first-child {
  padding-left: 0;
}

.value-strip > div:last-child {
  border-right: 0;
}

.value-strip strong {
  font-family: var(--serif);
  font-size: 42px;
  font-style: italic;
  font-weight: 600;
}

.value-strip span {
  margin-top: 5px;
  color: rgba(23, 35, 31, 0.63);
  font-size: 12px;
}

.section-dark {
  color: white;
  background: var(--forest);
}

.flagship-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  gap: clamp(48px, 7vw, 110px);
  padding-top: 75px;
}

.flagship-visual {
  position: relative;
  min-height: 740px;
  overflow: hidden;
  border-radius: 180px 180px 10px 10px;
}

.flagship-visual img {
  height: 100%;
  object-fit: cover;
}

.image-label {
  position: absolute;
  right: 22px;
  bottom: 22px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 100px;
  padding: 10px 16px;
  background: rgba(8, 35, 31, 0.6);
  backdrop-filter: blur(8px);
  font-size: 11px;
  font-weight: 700;
}

.flagship-content {
  align-self: center;
}

.location {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--white-line);
  padding-bottom: 11px;
  color: var(--lime);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.flagship-content h2 {
  margin-top: 30px;
}

.flagship-intro {
  max-width: 560px;
  margin: 30px 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
}

.trip-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--white-line);
  border-bottom: 1px solid var(--white-line);
  margin: 34px 0;
}

.trip-facts > div {
  display: flex;
  min-height: 92px;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--white-line);
  padding: 0 20px;
}

.trip-facts > div:first-child {
  padding-left: 0;
}

.trip-facts > div:last-child {
  border-right: 0;
}

.fact-label {
  color: rgba(255, 255, 255, 0.55);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.trip-facts strong {
  margin-top: 7px;
  font-size: 17px;
}

.experience-list {
  margin: 0 0 38px;
  padding: 0;
  list-style: none;
}

.experience-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  border-bottom: 1px solid var(--white-line);
  padding: 15px 0;
  font-size: 14px;
}

.experience-list li > span:first-child {
  color: var(--lime);
  font-size: 10px;
  font-weight: 700;
}

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

.section-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.55fr);
  gap: 10vw;
  align-items: end;
  padding: 80px 0 70px;
}

.section-heading-row p {
  margin: 0;
  color: rgba(23, 35, 31, 0.68);
  font-size: 17px;
}

.journey-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.journey-card {
  overflow: hidden;
  background: white;
}

.journey-image {
  position: relative;
  height: 430px;
  overflow: hidden;
}

.journey-image img {
  height: 100%;
  object-fit: cover;
  transition: transform 600ms ease;
}

.journey-card:hover .journey-image img {
  transform: scale(1.045);
}

.status-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  border-radius: 100px;
  padding: 8px 12px;
  color: var(--forest-deep);
  background: var(--lime);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.journey-body {
  padding: 25px 25px 28px;
}

.journey-meta {
  display: flex;
  justify-content: space-between;
  color: rgba(23, 35, 31, 0.54);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.journey-body h3 {
  min-height: 68px;
  margin: 21px 0 12px;
  font-family: var(--display);
  font-size: 25px;
  line-height: 1.25;
}

.journey-body p {
  min-height: 52px;
  margin: 0;
  color: rgba(23, 35, 31, 0.66);
  font-size: 14px;
}

.journey-body a {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  margin-top: 24px;
  padding-top: 17px;
  font-size: 12px;
  font-weight: 700;
}

.partner-disclaimer {
  margin: 24px 0 0;
  color: rgba(23, 35, 31, 0.48);
  font-size: 11px;
}

.difference {
  color: white;
  background: var(--forest-deep);
}

.difference-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(460px, 1.2fr);
  gap: 10vw;
  padding-top: 90px;
}

.difference-title {
  position: sticky;
  top: 120px;
  align-self: start;
}

.difference-title p {
  max-width: 460px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 17px;
}

.principle {
  display: grid;
  grid-template-columns: 70px 1fr;
  border-top: 1px solid var(--white-line);
  padding: 34px 0 40px;
}

.principle-number {
  color: var(--lime);
  font-size: 11px;
  font-weight: 700;
}

.principle h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: 28px;
}

.principle p {
  max-width: 560px;
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
}

.partners {
  background: var(--cream);
}

.partners-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(340px, 0.65fr);
  gap: 7vw;
  align-items: end;
  padding-top: 90px;
}

.partners h2 {
  font-size: clamp(48px, 5.2vw, 78px);
}

.partner-title-line {
  white-space: nowrap;
}

.partner-copy > p {
  margin-top: 0;
  font-size: 18px;
}

.partner-types {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.partner-types > span {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(23, 35, 31, 0.18);
  border-radius: 100px;
  padding: 0 16px;
  background: rgba(255, 255, 255, 0.22);
  font-size: 11px;
  font-weight: 700;
}

.partner-types > span > span {
  border: 0;
  padding: 0;
}

.contact {
  position: relative;
  min-height: 700px;
  overflow: hidden;
  color: white;
  background: var(--forest);
}

.contact-inner {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 480px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.contact-kicker {
  color: var(--lime);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.contact h2 {
  margin: 23px 0 42px;
  font-size: clamp(54px, 7.5vw, 110px);
}

.contact-email {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
}

.contact-orbit {
  position: absolute;
  border: 1px solid rgba(215, 244, 119, 0.25);
  border-radius: 50%;
}

.orbit-one {
  top: 50%;
  left: 50%;
  width: 900px;
  height: 900px;
  transform: translate(-50%, -50%);
}

.orbit-two {
  top: 50%;
  left: 50%;
  width: 520px;
  height: 520px;
  transform: translate(-50%, -50%);
}

.footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 46px max(24px, calc((100vw - 1440px) / 2));
  color: white;
  background: var(--forest-deep);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 15px;
}

.footer-brand div {
  display: flex;
  flex-direction: column;
}

.footer-brand strong {
  font-size: 14px;
  letter-spacing: 0.12em;
}

.footer-brand div span {
  color: rgba(255, 255, 255, 0.48);
  font-family: var(--serif);
  font-size: 12px;
  font-style: italic;
}

.footer-meta {
  display: flex;
  gap: 25px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 10px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 980px) {
  :root {
    --content: min(100% - 40px, 820px);
  }

  .site-header {
    grid-template-columns: auto auto 1fr;
    gap: 12px;
    padding: 0 20px;
  }

  .menu-button {
    display: block;
    order: 3;
    justify-self: end;
  }

  .header-actions {
    order: 2;
    justify-self: end;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 18px 24px 28px;
    color: var(--ink);
    background: var(--paper);
    box-shadow: 0 20px 36px rgba(8, 35, 31, 0.12);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    border-bottom: 1px solid var(--line);
    padding: 13px 0;
  }

  .hero-content {
    padding-top: 180px;
  }

  .hero-note {
    display: none;
  }

  .scroll-cue {
    left: auto;
    right: 24px;
  }

  .manifesto-grid,
  .section-heading-row,
  .difference-grid,
  .partners-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .manifesto-grid {
    padding: 72px 0;
  }

  .flagship-layout {
    grid-template-columns: 1fr;
  }

  .flagship-visual {
    min-height: 640px;
  }

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

  .journey-card:last-child {
    grid-column: 1 / -1;
    width: calc(50% - 12px);
  }

  .difference-title {
    position: static;
  }
}

@media (max-width: 680px) {
  :root {
    --content: calc(100% - 32px);
  }

  .site-header {
    height: 72px;
  }

  .site-header.scrolled {
    height: 64px;
  }

  .brand-word,
  .header-actions .button {
    display: none;
  }

  .header-actions {
    margin-left: auto;
  }

  .hero {
    min-height: 820px;
  }

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

  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(4, 27, 23, 0.93) 0%, rgba(4, 27, 23, 0.5) 72%, rgba(4, 27, 23, 0.4) 100%);
  }

  .hero-content {
    padding-top: 166px;
  }

  .hero h1 {
    font-size: clamp(58px, 18vw, 78px);
  }

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

  .hero-cta {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .section {
    padding: 82px 16px;
  }

  h2 {
    font-size: clamp(44px, 13vw, 66px);
  }

  .partners h2 {
    font-size: clamp(42px, 12vw, 60px);
  }

  .partner-title-line {
    white-space: normal;
  }

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

  .value-strip > div {
    min-height: 112px;
    border-bottom: 1px solid var(--line);
    padding: 0 18px;
  }

  .value-strip > div:nth-child(odd) {
    padding-left: 0;
  }

  .value-strip > div:nth-child(2) {
    border-right: 0;
  }

  .flagship-layout {
    padding-top: 52px;
  }

  .flagship-visual {
    min-height: 480px;
    border-radius: 110px 110px 8px 8px;
  }

  .trip-facts > div {
    padding: 0 10px;
  }

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

  .journey-card:last-child {
    grid-column: auto;
    width: 100%;
  }

  .journey-image {
    height: 380px;
  }

  .difference-grid {
    padding-top: 60px;
  }

  .principle {
    grid-template-columns: 42px 1fr;
  }

  .contact {
    min-height: 600px;
  }

  .contact h2 {
    font-size: clamp(48px, 14vw, 72px);
  }

  .orbit-one {
    width: 680px;
    height: 680px;
  }

  .orbit-two {
    width: 360px;
    height: 360px;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 35px;
  }

  .footer-meta {
    flex-direction: column;
    gap: 6px;
  }
}

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

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}