:root {
  color-scheme: light;
  --paper: #f3efe5;
  --paper-deep: #e6ddcb;
  --ink: #211f1b;
  --muted: #6f6a60;
  --cinnabar: #a7372a;
  --gold: #a78349;
  --line: rgba(33, 31, 27, 0.18);
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --gutter: clamp(1.25rem, 4vw, 4.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.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; left: 1rem; top: -5rem; z-index: 100; padding: .65rem 1rem;
  color: white; background: var(--ink); transition: top .2s ease;
}
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 2px solid var(--cinnabar); outline-offset: 5px; }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 20; height: 6rem; padding: 0 var(--gutter);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  border-bottom: 1px solid transparent; transition: background .35s ease, border-color .35s ease, height .35s ease;
}
.site-header.is-scrolled {
  height: 4.8rem; background: rgba(243, 239, 229, .88); border-color: var(--line); backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; width: max-content; }
.brand-seal {
  display: grid; place-items: center; width: 2.35rem; aspect-ratio: 1; border-radius: 2px;
  background: var(--cinnabar); color: #f8efe5; font: 1.25rem/1 var(--serif);
}
.brand-name { font: 700 1.2rem/1.05 var(--serif); letter-spacing: .16em; }
.brand-name small { display: block; margin-top: .35rem; font: 500 .52rem/1 var(--sans); letter-spacing: .18em; }
.site-nav { display: flex; align-items: center; gap: clamp(1.2rem, 2.3vw, 2.8rem); }
.site-nav a { position: relative; font-size: .88rem; letter-spacing: .08em; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -.45rem; height: 1px; background: var(--cinnabar); transition: right .25s ease; }
.site-nav a:hover::after { right: 0; }
.site-nav .language-switch { color: var(--cinnabar); font-weight: 700; letter-spacing: .12em; }
.nav-cta { justify-self: end; padding: .65rem 1.15rem; border: 1px solid var(--ink); font-size: .86rem; letter-spacing: .08em; }
.menu-toggle { display: none; }

.hero {
  min-height: 100svh; padding: 8.5rem var(--gutter) 3rem; position: relative;
  display: grid; grid-template-columns: minmax(0, .95fr) minmax(22rem, 1.05fr); align-items: center; gap: clamp(2rem, 6vw, 8rem);
  isolation: isolate; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -3; opacity: .45; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.065'/%3E%3C/svg%3E");
}
.hero-orbit { position: absolute; z-index: -2; border: 1px solid rgba(167, 131, 73, .2); border-radius: 50%; }
.hero-orbit-one { width: 44vw; height: 44vw; right: -17vw; top: 8vh; }
.hero-orbit-two { width: 24vw; height: 24vw; left: -12vw; bottom: -5vw; }
.hero-copy { max-width: 43rem; padding-top: 2rem; }
.eyebrow { margin: 0 0 1.4rem; color: var(--cinnabar); font-size: .78rem; font-weight: 650; letter-spacing: .25em; }
h1, h2 { margin: 0; font-family: var(--serif); font-weight: 500; letter-spacing: -.04em; }
h1 { font-size: clamp(3.9rem, 7.2vw, 8.8rem); line-height: .98; }
h1 span { display: block; }
h1 span:last-child { margin-left: .55em; color: var(--cinnabar); }
.hero-lead { max-width: 34rem; margin: 2rem 0 0; color: var(--muted); font-size: clamp(1rem, 1.25vw, 1.18rem); }
.hero-actions { display: flex; align-items: center; gap: 2rem; margin-top: 2.2rem; }
.button { min-height: 3.25rem; display: inline-flex; align-items: center; gap: 2rem; padding: .75rem 1.2rem; }
.button-primary { background: var(--ink); color: var(--paper); }
.button-primary span { color: #d6b77a; font-size: 1.2rem; }
.text-link { border-bottom: 1px solid var(--ink); font-size: .9rem; }
.hero-facts { display: flex; gap: clamp(1.6rem, 3vw, 3.5rem); margin: 3rem 0 0; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.hero-facts div { display: grid; gap: .15rem; }
.hero-facts dt { font: 1.3rem var(--serif); }
.hero-facts dd { margin: 0; color: var(--muted); font-size: .76rem; letter-spacing: .08em; }
.hero-visual { position: relative; height: min(72vh, 49rem); min-height: 36rem; }
.brush-frame { position: absolute; inset: 0 5% 0 8%; margin: 0; overflow: hidden; background: var(--paper-deep); }
.brush-frame::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.2); box-shadow: inset 0 0 80px rgba(24,21,18,.2); }
.brush-frame img { width: 100%; height: 100%; object-fit: cover; object-position: 53% center; filter: saturate(.78) contrast(1.04); }
.concept-label { position: absolute; left: 1rem; top: 1rem; z-index: 2; padding: .35rem .55rem; background: rgba(243,239,229,.88); color: var(--ink); font-size: .75rem; letter-spacing: .12em; }
.ink-mark { position: absolute; right: -12%; bottom: 7%; width: 58%; aspect-ratio: 1.4; z-index: 2; opacity: .82; pointer-events: none; background: radial-gradient(ellipse at 45% 45%, rgba(22,21,18,.92) 0 22%, rgba(22,21,18,.75) 34%, rgba(22,21,18,.13) 58%, transparent 72%); filter: blur(6px); mix-blend-mode: multiply; }
.vertical-note { position: absolute; margin: 0; top: 7%; right: 0; z-index: 3; writing-mode: vertical-rl; font: .92rem/1.8 var(--serif); letter-spacing: .22em; }
.figure-index { position: absolute; left: 0; bottom: 7%; z-index: 3; padding: .35rem .55rem; background: var(--cinnabar); color: white; font-size: .7rem; letter-spacing: .1em; }
.scroll-cue { position: absolute; right: var(--gutter); bottom: 1.5rem; display: flex; align-items: center; gap: .7rem; color: var(--muted); font-size: .72rem; letter-spacing: .2em; writing-mode: vertical-rl; }
.scroll-cue i { display: block; width: 1px; height: 3.2rem; background: linear-gradient(var(--cinnabar) 50%, var(--line) 50%); }

.products-section { padding: clamp(6rem, 10vw, 10rem) var(--gutter); border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: .45fr 1.1fr .75fr; gap: 4vw; align-items: start; }
.section-kicker { color: var(--muted); font-size: .75rem; letter-spacing: .17em; }
h2 { font-size: clamp(2.7rem, 5vw, 5.8rem); line-height: 1.08; }
.section-intro { margin: 3rem 0 0; color: var(--muted); max-width: 26rem; }
.product-grid { margin-top: clamp(4rem, 8vw, 8rem); display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 2.2vw, 2.5rem); align-items: start; }
.product-card { --tilt-x: 0deg; --tilt-y: 0deg; position: relative; transform: perspective(1000px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)); transition: transform .45s cubic-bezier(.2,.7,.2,1); }
.product-card:nth-child(2) { margin-top: 7rem; }
.product-image { position: relative; aspect-ratio: .76; overflow: hidden; background: var(--paper-deep); }
.product-image::after { content: ""; position: absolute; inset: 0; border: 1px solid rgba(255,255,255,.24); }
.product-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s cubic-bezier(.2,.7,.2,1), filter .7s ease; }
.product-card-tall .product-image img { object-position: 71% center; }
.product-card-ink .product-image { background: #292824; }
.product-card-ink .product-image img { object-position: 77% center; filter: grayscale(1) contrast(1.15) brightness(.52); mix-blend-mode: screen; }
.product-card-red .product-image { background: var(--cinnabar); }
.product-card-red .product-image img { object-position: 75% center; filter: grayscale(1) contrast(1.2); mix-blend-mode: multiply; opacity: .78; }
.product-card:hover .product-image img { transform: scale(1.025); }
.product-meta, .product-title-row { display: flex; justify-content: space-between; gap: 1rem; }
.product-meta { margin-top: 1rem; color: var(--muted); font-size: .72rem; letter-spacing: .1em; }
.product-title-row { align-items: baseline; margin-top: .65rem; }
.product-title-row h3 { margin: 0; font: 2rem var(--serif); }
.product-title-row span { color: var(--cinnabar); font-size: .85rem; }
.product-card > p { min-height: 3.4em; margin: .7rem 0; color: var(--muted); font-size: 1rem; }
.product-card > a, .guide-list a { display: inline-flex; gap: .5rem; border-bottom: 1px solid var(--line); font-size: .85rem; }
.demo-note { margin: 3rem 0 0; color: var(--muted); font-size: 1rem; }

.guide-section { padding: clamp(6rem, 11vw, 11rem) var(--gutter); display: grid; grid-template-columns: .9fr 1.1fr; gap: 8vw; background: #e8e0d2; }
.guide-copy { position: sticky; top: 8rem; align-self: start; }
.guide-copy .eyebrow { margin-top: 2rem; }
.guide-list { border-top: 1px solid var(--line); }
.guide-list article { display: grid; grid-template-columns: 3rem 1fr 1.4fr auto; gap: 1rem; align-items: baseline; padding: 2.1rem 0; border-bottom: 1px solid var(--line); }
.guide-list article > span { color: var(--cinnabar); font: 1rem var(--serif); }
.guide-list h3 { margin: 0; font: 2rem var(--serif); }
.guide-list p { margin: 0; color: var(--muted); font-size: 1rem; }

.virtues-section { padding: clamp(7rem, 12vw, 12rem) var(--gutter); background: var(--ink); color: var(--paper); }
.virtues-heading { text-align: center; }
.virtues-heading .section-kicker { color: #a9a396; }
.virtues-heading .eyebrow { margin-top: 2rem; }
.virtues-heading h2 { letter-spacing: .08em; }
.virtue-grid { margin-top: clamp(4rem, 7vw, 7rem); display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid rgba(243,239,229,.16); }
.virtue-card { min-height: 24rem; padding: 2rem; display: flex; flex-direction: column; border-right: 1px solid rgba(243,239,229,.16); transition: background .35s ease, color .35s ease; }
.virtue-card:last-child { border-right: 0; }
.virtue-card:hover { background: var(--paper); color: var(--ink); }
.virtue-card strong { font: 6.5rem/1 var(--serif); color: var(--cinnabar); }
.virtue-card span { margin-top: auto; font: 1.3rem var(--serif); }
.virtue-card p { color: #aaa397; font-size: 1rem; }
.virtue-card:hover p { color: var(--muted); }

.craft-section { padding: clamp(7rem, 11vw, 11rem) var(--gutter); }
.craft-heading { display: grid; grid-template-columns: .45fr 1.15fr .75fr; gap: 4vw; }
.craft-heading > p { margin-top: 3.2rem; color: var(--muted); }
.process-list { list-style: none; padding: 0; margin: clamp(4rem, 8vw, 8rem) 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.process-step { display: grid; grid-template-rows: auto 1fr; gap: 3rem; min-height: 20rem; padding: 2rem; border-right: 1px solid var(--line); }
.process-step:last-child { border-right: 0; }
.process-step > span { color: var(--cinnabar); font-size: .8rem; letter-spacing: .1em; }
.process-step div { display: grid; align-content: end; gap: 1rem; }
.process-step h3 { margin: 0; font: 2.5rem var(--serif); }
.process-step p { margin: 0; color: var(--muted); }

.story-section { min-height: 92vh; padding: clamp(7rem, 11vw, 11rem) var(--gutter); position: relative; display: grid; grid-template-columns: 1.2fr .8fr; gap: 8vw; align-items: center; overflow: hidden; background: #2a2925; color: var(--paper); }
.story-section::before { content: ""; position: absolute; inset: 0; opacity: .3; background: radial-gradient(circle at 20% 30%, rgba(167,55,42,.35), transparent 24%), linear-gradient(115deg, transparent 45%, rgba(255,255,255,.04) 45% 46%, transparent 46%); }
.story-mark { position: absolute; right: -2vw; top: -13vw; color: rgba(243,239,229,.035); font: 47vw/1 var(--serif); }
.story-copy, .story-section blockquote { position: relative; z-index: 1; }
.story-copy h2 { font-size: clamp(3.4rem, 6vw, 7rem); }
.story-lead { max-width: 43rem; color: #bcb5a8; }
.source-link { display: inline-block; margin-top: 1rem; border-bottom: 1px solid rgba(243,239,229,.28); color: #d1c7b6; font-size: .8rem; }
.story-section blockquote { margin: 9rem 0 0; padding: 2rem 0 2rem 2rem; border-left: 1px solid var(--cinnabar); }
.story-section blockquote p { margin: 0; font: 1.8rem/1.7 var(--serif); }
.story-section blockquote cite { display: block; margin-top: 1.5rem; color: #9b9488; font-size: .76rem; font-style: normal; }

.closing-section { padding: clamp(8rem, 14vw, 14rem) var(--gutter); text-align: center; background: var(--cinnabar); color: var(--paper); }
.closing-section .eyebrow { color: var(--paper); opacity: .72; }
.closing-section h2 { font-size: clamp(4rem, 9vw, 10rem); }
.button-light { margin-top: 2.5rem; border: 1px solid rgba(243,239,229,.8); }
.site-footer { padding: 2.5rem var(--gutter); display: grid; grid-template-columns: 1fr auto auto; gap: 3rem; align-items: center; background: var(--ink); color: #afa99e; font-size: .78rem; }
.footer-brand { color: var(--paper); }

.locale-en { --serif: Georgia, "Times New Roman", serif; --sans: Inter, Avenir, "Helvetica Neue", Arial, sans-serif; }
.locale-en h1 { max-width: 10ch; font-size: clamp(3.45rem, 6.2vw, 7.4rem); letter-spacing: -.055em; }
.locale-en h1 span:last-child { margin-left: .28em; }
.locale-en h2 { letter-spacing: -.045em; }
.locale-en .site-nav { gap: clamp(.9rem, 1.8vw, 2rem); }
.locale-en .site-nav a { letter-spacing: .035em; }
.locale-en .vertical-note { letter-spacing: .08em; }
.locale-en .hero-facts dd,
.locale-en .section-kicker,
.locale-en .product-meta { letter-spacing: .04em; }

.js [data-reveal]:not(.product-card) { opacity: 0; transform: translateY(1.5rem); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.js [data-reveal]:not(.product-card).is-visible { opacity: 1; transform: translateY(0); }
.js .product-card[data-reveal] { opacity: 0; transform: translateY(1.5rem) perspective(1000px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.js .product-card[data-reveal].is-visible { opacity: 1; transform: translateY(0) perspective(1000px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)); }
.js .hero-copy.is-visible h1 span { animation: title-rise .9s cubic-bezier(.2,.7,.2,1) both; }
.js .hero-copy.is-visible h1 span:last-child { animation-delay: .13s; }
.js .hero-visual.is-visible .brush-frame { animation: brush-float 6s ease-in-out infinite; }
.js .hero-visual.is-visible .ink-mark { animation: ink-bloom 1.25s cubic-bezier(.2,.7,.2,1) both; }

@keyframes title-rise { from { opacity: 0; transform: translateY(.55em); } to { opacity: 1; transform: translateY(0); } }
@keyframes brush-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-.7rem); } }
@keyframes ink-bloom { from { opacity: 0; transform: scale(.72); filter: blur(14px); } to { opacity: .82; transform: scale(1); filter: blur(6px); } }

@media (max-width: 900px) {
  .site-header { position: static; height: auto; min-height: 5rem; grid-template-columns: 1fr auto; background: rgba(243,239,229,.96); }
  .js .site-header { position: fixed; height: 5rem; min-height: 0; }
  .nav-cta { display: none; }
  .js .menu-toggle { width: 2.75rem; height: 2.75rem; display: grid; align-content: center; gap: 5px; padding: .65rem; border: 1px solid var(--line); background: rgba(243,239,229,.8); }
  .menu-toggle span:not(.sr-only) { height: 1px; background: var(--ink); }
  .site-nav { grid-column: 1 / -1; display: grid; gap: 0; padding: 1rem 0 1.5rem; border-top: 1px solid var(--line); }
  .js .site-nav { position: fixed; inset: 5rem 0 auto; padding: 1rem var(--gutter) 1.5rem; background: var(--paper); border-top: 0; border-bottom: 1px solid var(--line); transform: translateY(-130%); visibility: hidden; pointer-events: none; transition: transform .3s ease, visibility 0s linear .3s; }
  .js .site-nav.is-open { transform: translateY(0); visibility: visible; pointer-events: auto; transition-delay: 0s; }
  .site-nav a { padding: .8rem 0; }
  .hero { padding-top: 7rem; grid-template-columns: 1fr; gap: 3rem; }
  .hero-copy { padding-top: 0; }
  .hero-visual { height: 66vh; min-height: 31rem; }
  .scroll-cue { display: none; }
  .section-heading, .craft-heading { grid-template-columns: 1fr; gap: 1.5rem; }
  .section-intro { margin-top: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card:nth-child(2) { margin-top: 0; }
  .product-image { aspect-ratio: 1 / .9; }
  .guide-section { grid-template-columns: 1fr; }
  .guide-copy { position: static; }
  .guide-list article { grid-template-columns: 2.5rem .6fr 1.4fr; }
  .guide-list article a { grid-column: 2 / -1; width: max-content; }
  .virtue-grid { grid-template-columns: repeat(2, 1fr); }
  .virtue-card:nth-child(2) { border-right: 0; }
  .virtue-card:nth-child(-n+2) { border-bottom: 1px solid rgba(243,239,229,.16); }
  .story-section { grid-template-columns: 1fr; min-height: auto; }
  .story-section blockquote { margin-top: 0; }
  .site-footer { grid-template-columns: 1fr; gap: 1rem; }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(2) { border-right: 0; }
  .process-step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 560px) {
  h1 { font-size: clamp(3.4rem, 18vw, 5.4rem); }
  h1 span:last-child { margin-left: .18em; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 1rem; }
  .hero-facts { gap: 1rem; justify-content: space-between; }
  .hero-visual { min-height: 27rem; height: 60vh; }
  .brush-frame { inset-inline: 0 8%; }
  .product-image { aspect-ratio: .85; }
  .guide-list article { grid-template-columns: 2rem 1fr; }
  .guide-list article p, .guide-list article a { grid-column: 2; }
  .virtue-grid { grid-template-columns: 1fr; }
  .virtue-card, .virtue-card:nth-child(2) { min-height: 18rem; border-right: 0; border-bottom: 1px solid rgba(243,239,229,.16); }
  .process-list { grid-template-columns: 1fr; }
  .process-step, .process-step:nth-child(2) { min-height: 14rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .process-step:last-child { border-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js [data-reveal], .js .product-card[data-reveal], .js .product-card[data-reveal].is-visible { opacity: 1; transform: none; }
  .js .hero-copy.is-visible h1 span, .js .hero-visual.is-visible .brush-frame, .js .hero-visual.is-visible .ink-mark { animation: none; }
  .product-card:hover .product-image img { transform: none; }
}