:root {
  --bg: #f3f5f7;
  --bg-elevated: #fafbfc;
  --ink: #1c2421;
  --ink-soft: #3a4540;
  --muted: #6b7570;
  --line: rgba(28, 36, 33, 0.1);
  --accent: #3d6b5a;
  --accent-deep: #2a4a3e;
  --accent-mist: rgba(61, 107, 90, 0.12);
  --hero-veil: linear-gradient(
    105deg,
    rgba(243, 245, 247, 0.94) 0%,
    rgba(243, 245, 247, 0.78) 38%,
    rgba(243, 245, 247, 0.18) 68%,
    rgba(243, 245, 247, 0.05) 100%
  );
  --serif-en: "Cormorant Garamond", "Noto Serif SC", Georgia, serif;
  --serif-zh: "Noto Serif SC", "Cormorant Garamond", serif;
  --sans: "Outfit", "Noto Sans SC", sans-serif;
  --sans-zh: "Noto Sans SC", "Outfit", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4.5rem;
  --space: clamp(1.25rem, 3vw, 2.5rem);
  --max: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61, 107, 90, 0.07), transparent 55%),
    radial-gradient(900px 500px at 100% 20%, rgba(180, 198, 210, 0.22), transparent 50%),
    var(--bg);
  font-family: var(--sans-zh);
  font-weight: 300;
  font-size: 1.05rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body[data-lang="en"] {
  font-family: var(--sans);
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

body[data-lang="zh"] h1,
body[data-lang="zh"] h2,
body[data-lang="zh"] h3,
body[data-lang="zh"] .brand-zh,
body[data-lang="zh"] blockquote {
  font-family: var(--serif-zh);
}

body[data-lang="en"] h1,
body[data-lang="en"] h2,
body[data-lang="en"] h3,
body[data-lang="en"] blockquote {
  font-family: var(--serif-en);
}

p {
  margin: 0;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.035;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-h);
  padding: 0 var(--space);
  background: rgba(243, 245, 247, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(243, 245, 247, 0.9);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  justify-self: start;
}

.brand-mark-img {
  display: block;
  width: 1.7rem;
  height: 1.7rem;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-logo {
  display: block;
  height: 2.25rem;
  width: auto;
  object-fit: contain;
}

.brand-mark {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-mist);
}

.brand-text {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.brand-en {
  font-family: var(--serif-en);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1;
}

.brand-zh {
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0.18em;
}

.nav {
  display: none;
  gap: 1.75rem;
}

.nav a,
.mobile-nav a {
  position: relative;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  transition: color 0.25s var(--ease);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.35rem;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav a:hover,
.mobile-nav a:hover {
  color: var(--ink);
}

.nav a:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: none;
  align-items: center;
  gap: 1rem;
  justify-self: end;
}

.lang-switch {
  min-width: 2.75rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease),
    background 0.25s var(--ease);
}

.lang-switch:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
  background: var(--accent-mist);
}

.header-cta {
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg-elevated);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.header-cta:hover {
  background: var(--accent-deep);
  transform: translateY(-1px);
}

.menu-toggle {
  justify-self: end;
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-content: center;
  gap: 6px;
}

.menu-toggle span {
  display: block;
  width: 1.25rem;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease);
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 auto;
  z-index: 45;
  display: grid;
  gap: 1.25rem;
  padding: 1.5rem var(--space) 2rem;
  background: rgba(250, 251, 252, 0.97);
  border-bottom: 1px solid var(--line);
  transform-origin: top;
  animation: drop 0.35s var(--ease);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav .lang-switch {
  justify-self: start;
  margin-top: 0.5rem;
}

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

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 55% center;
  transform: scale(1.04);
  animation: heroZoom 18s var(--ease) forwards;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background: var(--hero-veil);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: calc(var(--header-h) + 4rem) var(--space) 5.5rem;
  max-width: 38rem;
  margin-left: max(var(--space), calc((100% - var(--max)) / 2));
}

.hero-brand {
  margin-bottom: 0.35rem;
  font-family: var(--serif-en);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.05;
  color: var(--ink);
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.15s forwards;
}

.hero-brand-zh {
  margin-bottom: 1.35rem;
  font-family: var(--serif-zh);
  font-size: clamp(1rem, 2vw, 1.2rem);
  letter-spacing: 0.35em;
  color: var(--accent-deep);
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.22s forwards;
}

.hero h1 {
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  max-width: 28rem;
  opacity: 0;
  animation: rise 1s var(--ease) 0.28s forwards;
}

body[data-lang="zh"] .hero h1 {
  letter-spacing: 0.12em;
}

.hero-lead {
  margin-top: 1.35rem;
  max-width: 28rem;
  color: var(--ink-soft);
  font-size: 1.05rem;
  opacity: 0;
  animation: rise 1s var(--ease) 0.42s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.25rem;
  opacity: 0;
  animation: rise 1s var(--ease) 0.55s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
    color 0.25s var(--ease), border-color 0.25s var(--ease);
}

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

.btn-primary {
  background: var(--ink);
  color: #f7f8f9;
}

.btn-primary:hover {
  background: var(--accent-deep);
}

.btn-ghost {
  border: 1px solid rgba(28, 36, 33, 0.22);
  background: rgba(250, 251, 252, 0.55);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 1.5rem;
  z-index: 2;
  width: 1.25rem;
  height: 2rem;
  border: 1px solid rgba(28, 36, 33, 0.25);
  border-radius: 999px;
  transform: translateX(-50%);
  opacity: 0;
  animation: rise 0.8s var(--ease) 1s forwards;
}

.scroll-hint span {
  position: absolute;
  left: 50%;
  top: 0.35rem;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--ink);
  transform: translateX(-50%);
  animation: scrollDot 1.6s var(--ease) infinite;
}

@keyframes heroZoom {
  to {
    transform: scale(1);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollDot {
  0% {
    opacity: 1;
    transform: translate(-50%, 0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, 12px);
  }
}

/* Sections */
.section {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: clamp(4.5rem, 10vw, 8rem) var(--space);
}

.section-intro {
  max-width: 38rem;
  margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.eyebrow {
  margin-bottom: 0.85rem;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.section-lead {
  margin-top: 1rem;
  color: var(--ink-soft);
  max-width: 32rem;
}

/* Philosophy */
.philosophy-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}

.philosophy-visual {
  margin: 0;
  overflow: hidden;
}

.philosophy-visual img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.02);
  transition: transform 1.2s var(--ease);
}

.philosophy-visual:hover img {
  transform: scale(1.03);
}

.philosophy-copy {
  display: grid;
  gap: 1.25rem;
  color: var(--ink-soft);
}

.philosophy-copy blockquote {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent);
  color: var(--ink);
  font-size: 1.35rem;
  font-style: italic;
  line-height: 1.45;
}

/* Beliefs */
.beliefs-body {
  display: grid;
  gap: clamp(2rem, 4vw, 3.25rem);
  align-items: stretch;
}

.belief-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.belief {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
}

.belief-index {
  font-family: var(--serif-en);
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  padding-top: 0.2rem;
}

.belief h3 {
  margin-bottom: 0.45rem;
  font-size: 1.45rem;
}

.belief p {
  color: var(--ink-soft);
  max-width: 38rem;
}

.beliefs-visual {
  margin: 0;
  position: relative;
  display: flex;
  flex-direction: column;
}

.beliefs-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.beliefs-visual figcaption {
  margin-top: 0.85rem;
  flex-shrink: 0;
  font-size: 0.9rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  max-width: 18rem;
}

/* Presence */
.presence {
  width: 100%;
  max-width: none;
  padding-left: 0;
  padding-right: 0;
  background:
    linear-gradient(180deg, transparent, rgba(61, 107, 90, 0.05) 40%, transparent),
    var(--bg);
}

.presence-layout {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 0 var(--space);
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.presence-copy {
  max-width: 32rem;
  display: grid;
  gap: 1.1rem;
}

.presence-copy p:not(.eyebrow) {
  color: var(--ink-soft);
}

.presence-gallery {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 0.75rem;
  align-items: stretch;
  min-height: clamp(18rem, 48vw, 28rem);
}

.presence-gallery figure {
  margin: 0;
  overflow: hidden;
  height: 100%;
}

.presence-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease);
}

.presence-gallery figure:hover img {
  transform: scale(1.03);
}

/* Contact */
.contact-panel {
  display: grid;
  gap: 2.5rem;
  padding: clamp(2rem, 5vw, 3.5rem);
  background: var(--bg-elevated);
  border: 1px solid var(--line);
}

.contact-details {
  margin: 0;
  display: grid;
  gap: 1.35rem;
}

.contact-details div {
  display: grid;
  gap: 0.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.contact-details dt {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-details dd {
  margin: 0;
  font-size: 1.05rem;
}

.contact-details a {
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.contact-details a:hover {
  color: var(--accent-deep);
  border-bottom-color: var(--accent);
}

/* Footer */
.site-footer {
  padding: 3rem var(--space) 2.5rem;
  border-top: 1px solid var(--line);
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.85rem;
}

.footer-mark {
  display: block;
  width: 2.4rem;
  height: 2.4rem;
  object-fit: contain;
}

.footer-brand-text {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.footer-brand-text .brand-en {
  font-size: 1.35rem;
}

.footer-logo {
  display: block;
  height: 3.5rem;
  width: auto;
  object-fit: contain;
}

.footer-tagline {
  color: var(--ink-soft);
  font-family: var(--serif-zh);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

body[data-lang="en"] .footer-tagline {
  font-family: var(--serif-en);
  font-style: italic;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--muted);
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}

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

/* Desktop */
@media (min-width: 860px) {
  .nav,
  .header-actions {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .hero-content {
    align-self: center;
    padding-bottom: 0;
    margin-top: calc(var(--header-h) * 0.5);
  }

  .hero-veil {
    background: linear-gradient(
      100deg,
      rgba(243, 245, 247, 0.96) 0%,
      rgba(243, 245, 247, 0.82) 34%,
      rgba(243, 245, 247, 0.2) 58%,
      transparent 78%
    );
  }

  .philosophy-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 4rem;
  }

  .philosophy-visual img {
    aspect-ratio: 4 / 5;
    min-height: 34rem;
  }

  .belief {
    grid-template-columns: 5rem 1fr;
    gap: 1.5rem;
    padding: 2rem 0;
  }

  .beliefs-body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2.5rem, 4vw, 4rem);
    align-items: stretch;
  }

  .beliefs-visual {
    height: 100%;
    min-height: 0;
  }

  .beliefs-visual img {
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    aspect-ratio: auto;
  }

  .presence-layout {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(3rem, 5vw, 5rem);
  }

  .presence-gallery {
    min-height: clamp(26rem, 42vw, 34rem);
  }

  .contact-panel {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: end;
    gap: 3rem;
  }
}

@media (min-width: 1100px) {
  .hero-media img {
    object-position: 60% center;
  }
}

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

  .hero-media img,
  .hero-brand,
  .hero-brand-zh,
  .hero h1,
  .hero-lead,
  .hero-actions,
  .scroll-hint,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}