:root {
  --navy: #06142d;
  --navy-2: #0a234a;
  --ink: #101725;
  --paper: #f4f1e9;
  --paper-deep: #e8e0d2;
  --gold: #c8a04b;
  --gold-light: #efd27f;
  --muted: #6c6f74;
  --line: rgba(16, 23, 37, .14);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Songti SC", "STSong", "Noto Serif SC", Georgia, serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header { position: fixed; z-index: 50; top: 0; left: 0; width: 100%; height: 84px; padding: 0 max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; justify-content: space-between; color: #fff; border-bottom: 1px solid rgba(255,255,255,.12); transition: .35s ease; }
.site-header.scrolled { height: 70px; color: var(--ink); border-color: var(--line); background: rgba(244,241,233,.94); backdrop-filter: blur(16px); }
.brand { display: flex; align-items: center; gap: 13px; }
.brand-type { display: flex; flex-direction: column; gap: 2px; }
.brand-type strong { font-size: 18px; letter-spacing: .18em; font-weight: 600; }
.brand-type small { font: 8px/1 Arial, sans-serif; letter-spacing: .32em; opacity: .65; }
.logo-crop { position: relative; display: block; overflow: hidden; border-radius: 50%; background: #fff; }
.logo-crop img { position: absolute; width: 148%; max-width: none; left: -24%; top: -2%; }
.logo-crop-small { width: 46px; height: 46px; border: 1px solid rgba(239,210,127,.65); }
.main-nav { display: flex; height: 100%; gap: 29px; }
.main-nav a { position: relative; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 4px; }
.main-nav a span { font-size: 13px; letter-spacing: .12em; }
.main-nav a small { font: 8px/1 Arial, sans-serif; letter-spacing: .16em; opacity: .5; }
.main-nav a::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 0; height: 2px; background: var(--gold); transform: translateX(-50%); transition: .25s; }
.main-nav a:hover::after, .main-nav a.active::after { width: 24px; }
.menu-toggle { display: none; padding: 12px; color: inherit; border: 0; background: none; }
.menu-toggle span { display: block; width: 24px; height: 1px; margin: 6px 0; background: currentColor; }

.hero { position: relative; min-height: 100svh; overflow: hidden; display: grid; place-items: center; padding: 104px max(32px, calc((100vw - var(--max)) / 2)) 54px; color: #fff; background: radial-gradient(circle at 50% 48%, #12376b 0, #071b3c 30%, transparent 59%), linear-gradient(135deg, #020918, var(--navy) 55%, #030b1c); }
.hero-pattern { position: absolute; inset: 0; opacity: .3; background-image: linear-gradient(90deg, transparent 49.8%, rgba(255,255,255,.045) 50%), linear-gradient(0deg, transparent 49.8%, rgba(255,255,255,.035) 50%); background-size: 130px 130px; mask-image: linear-gradient(90deg, transparent, #000 40%); }
.hero::before { content: ""; position: absolute; width: 650px; height: 650px; right: -250px; top: -270px; border: 1px solid rgba(239,210,127,.16); border-radius: 50%; }
.hero-copy { position: absolute; z-index: 4; inset: 0; text-align: center; pointer-events: none; }
.hero-symbol { position: relative; z-index: 2; }
.eyebrow { position: absolute; top: 126px; left: 0; right: 0; margin: 0; color: var(--gold-light); font-size: 12px; letter-spacing: .46em; }
.hero h1 { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.hero-en { display: none; }
.hero-lead { display: none; }
.line-link { position: absolute; left: 50%; bottom: 48px; display: inline-flex; align-items: center; gap: 28px; padding-bottom: 8px; border-bottom: 1px solid rgba(239,210,127,.6); color: var(--gold-light); font-size: 12px; letter-spacing: .18em; transform: translateX(-50%); pointer-events: auto; }
.line-link span { font: 18px Arial, sans-serif; transition: transform .25s; }
.line-link:hover span { transform: translateX(6px); }
.hero-symbol { width: min(72vw, 760px); min-height: 680px; display: grid; place-items: center; }
.hero-pack-art { position: relative; z-index: 2; width: min(42vw, 540px); height: min(72vh, 650px); display: grid; place-items: center; filter: drop-shadow(0 40px 55px rgba(0,0,0,.38)); }
.hero-pack-art img { width: 100%; max-height: 100%; display: block; object-fit: contain; }
.hero-ring { position: absolute; border: 1px solid rgba(239,210,127,.23); border-radius: 50%; }
.ring-one { width: min(46vw, 620px); height: min(46vw, 620px); }
.ring-two { width: min(58vw, 790px); height: min(24vw, 320px); transform: rotate(-22deg); }
.vertical-copy { position: absolute; right: 10px; bottom: 44px; color: rgba(255,255,255,.35); font: 8px Arial, sans-serif; letter-spacing: .28em; writing-mode: vertical-rl; }
.scroll-cue { position: absolute; z-index: 3; right: 28px; bottom: 24px; display: flex; flex-direction: column; align-items: center; gap: 8px; font: 8px Arial, sans-serif; letter-spacing: .28em; opacity: .55; }
.scroll-cue i { display: block; width: 1px; height: 30px; background: currentColor; animation: cue 1.7s infinite ease-in-out; }
@keyframes cue { 0%,100% { transform: scaleY(.35); transform-origin: top; } 50% { transform: scaleY(1); } }

.section { padding: 120px max(32px, calc((100vw - var(--max)) / 2)); }
.section-index { display: flex; align-items: center; gap: 14px; margin-bottom: 38px; color: #183b70; font: 9px Arial, sans-serif; letter-spacing: .24em; }
.section-index span { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; }
.section-index.light { color: var(--gold-light); }
.cn-label { margin: 0 0 15px; color: #183b70; font-size: 13px; letter-spacing: .24em; }
.cn-label.gold { color: var(--gold-light); }
.section h2 { margin: 0; font-size: clamp(42px, 5.2vw, 74px); font-weight: 500; line-height: 1.17; letter-spacing: .04em; }
.section-top { display: flex; justify-content: space-between; align-items: flex-end; gap: 70px; margin-bottom: 64px; }
.section-summary { max-width: 420px; margin: 0; color: rgba(255,255,255,.56); font-size: 15px; line-height: 1.9; }
.section-summary.dark { color: var(--muted); }

.brand-section { background: var(--paper); }
.brand-intro { display: grid; grid-template-columns: .9fr 1.1fr; gap: 10vw; }
.brand-story { padding-top: 44px; border-top: 1px solid var(--line); }
.brand-story > p { margin: 0 0 22px; color: var(--muted); font-size: 16px; line-height: 2; }
.brand-story .lead { color: var(--ink); font-size: 22px; }
.brand-principles { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 40px; border-top: 1px solid var(--line); }
.brand-principles div { padding: 24px 10px 0 0; display: flex; flex-direction: column; gap: 8px; }
.brand-principles b { font-size: 16px; font-weight: 500; }
.brand-principles span { color: #949089; font: 8px Arial, sans-serif; letter-spacing: .12em; }

.products { color: #fff; background: #020b1d; }
.product-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.product-item { position: relative; padding: 18px; border: 1px solid rgba(255,255,255,.14); transition: transform .35s, border-color .35s; }
.product-item:hover { transform: translateY(-10px); border-color: rgba(239,210,127,.5); }
.product-photo { position: relative; height: 350px; overflow: hidden; display: grid; place-items: center; background: linear-gradient(150deg, #f5f1e8, #e5dccb); }
.product-photo::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 65px rgba(2,11,29,.08); pointer-events: none; }
.product-photo img { width: 100%; height: 100%; display: block; object-fit: contain; }
.product-info { padding: 28px 10px 12px; }
.product-info span { color: var(--gold); font: 8px Arial, sans-serif; letter-spacing: .2em; }
.product-info h3 { margin: 12px 0 8px; font-size: 27px; font-weight: 500; }
.product-info p { margin: 0; color: rgba(255,255,255,.5); font-size: 13px; }

.culture { display: grid; grid-template-columns: 1fr 1fr; padding-top: 0; padding-bottom: 0; background: var(--paper-deep); }
.culture-copy { align-self: center; padding: 100px 8vw 100px 0; }
.culture-copy > p:not(.cn-label) { max-width: 520px; margin: 34px 0 40px; color: var(--muted); font-size: 16px; line-height: 2; }
.culture-values { display: flex; gap: 12px; }
.culture-values span { min-width: 92px; padding: 13px 18px; text-align: center; border: 1px solid var(--line); font-size: 13px; letter-spacing: .16em; }
.culture-visual { min-height: 720px; position: relative; display: grid; place-items: center; background: radial-gradient(circle at center, #15396e 0, #071d42 40%, #020b1d 72%); overflow: hidden; }
.culture-visual::before, .culture-visual::after { content: ""; position: absolute; width: 78%; height: 78%; border: 1px solid rgba(239,210,127,.2); border-radius: 50%; }
.culture-visual::after { width: 90%; height: 36%; transform: rotate(28deg); }
.logo-panel { position: relative; z-index: 2; width: min(72%, 460px); display: grid; justify-items: center; gap: 24px; }
.logo-panel::before, .logo-panel::after { content: ""; position: absolute; z-index: -1; top: 39%; left: 50%; width: 112%; aspect-ratio: 1; border: 1px solid rgba(239,210,127,.22); border-radius: 50%; transform: translate(-50%, -50%); animation: logoOrbit 16s linear infinite; }
.logo-panel::after { width: 132%; border-style: dashed; opacity: .55; animation-direction: reverse; animation-duration: 24s; }
.logo-emblem { width: min(70%, 310px); aspect-ratio: 1; position: relative; display: block; overflow: hidden; border-radius: 50%; filter: drop-shadow(0 24px 45px rgba(0,0,0,.42)); animation: logoFloat 4.8s ease-in-out infinite; }
.logo-emblem img { position: absolute; width: 148%; max-width: none; left: -24%; top: -2%; }
.logo-name { display: flex; flex-direction: column; align-items: center; color: #fff; }
.logo-name strong { font-size: 30px; font-weight: 500; letter-spacing: .28em; text-indent: .28em; }
.logo-name small { margin-top: 9px; color: var(--gold-light); font: 9px/1 Arial, sans-serif; letter-spacing: .55em; text-indent: .55em; }
@keyframes logoOrbit { to { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes logoFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.culture-visual p { position: absolute; z-index: 2; bottom: 48px; color: rgba(255,255,255,.42); font: 8px Arial, sans-serif; letter-spacing: .25em; }

.digital { background: #f8f6f0; }
.journey { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.journey-step { min-height: 270px; padding: 32px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.journey-step > span { color: #244b82; font: 10px Arial, sans-serif; }
.journey-step h3 { margin: 90px 0 12px; font-size: 24px; font-weight: 500; }
.journey-step p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

.partnership { display: grid; grid-template-columns: .92fr 1.08fr; gap: 8vw; align-items: center; color: #fff; background: #020b1d; }
.partnership-poster { position: relative; max-width: 520px; padding: 10px; border: 1px solid rgba(239,210,127,.28); }
.partnership-poster::before { content: ""; position: absolute; inset: 22px -22px -22px 22px; z-index: 0; border: 1px solid rgba(239,210,127,.12); }
.partnership-poster img { position: relative; z-index: 1; width: 100%; display: block; }
.partnership-copy > p:not(.cn-label) { max-width: 540px; margin: 32px 0; color: rgba(255,255,255,.58); font-size: 16px; line-height: 2; }
.support-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid rgba(255,255,255,.15); border-left: 1px solid rgba(255,255,255,.15); }
.support-grid span { padding: 18px 20px; border-right: 1px solid rgba(255,255,255,.15); border-bottom: 1px solid rgba(255,255,255,.15); font-size: 13px; letter-spacing: .16em; }

footer { padding: 44px max(32px, calc((100vw - var(--max)) / 2)) 24px; color: #fff; background: #010713; }
.footer-main { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; padding-bottom: 34px; border-bottom: 1px solid rgba(255,255,255,.12); }
.footer-main > p { margin: 0; color: rgba(255,255,255,.58); font-size: 12px; letter-spacing: .1em; }
.back-top { justify-self: end; color: var(--gold-light); font-size: 11px; letter-spacing: .12em; }
.footer-bottom { display: flex; justify-content: space-between; gap: 30px; padding-top: 22px; color: rgba(255,255,255,.38); font-size: 10px; }
.footer-bottom p { margin: 0; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .main-nav { gap: 18px; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .product-photo { height: 380px; }
  .culture-copy { padding-right: 5vw; }
}

@media (min-width: 821px) and (max-height: 950px) {
  .hero { padding-top: 82px; padding-bottom: 68px; }
  .eyebrow { top: 92px; }
  .hero-symbol { min-height: 0; height: calc(100svh - 150px); transform: translateY(-10px); }
  .hero-pack-art { width: min(36vw, 460px); height: calc(100svh - 230px); }
  .line-link { bottom: 24px; }
}

@media (max-width: 820px) {
  .site-header { height: 70px; padding: 0 22px; }
  .menu-toggle { display: block; }
  .main-nav { position: fixed; inset: 70px 0 auto; height: auto; padding: 16px 22px 22px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; color: var(--ink); background: rgba(244,241,233,.98); border-bottom: 1px solid var(--line); transform: translateY(-140%); transition: .3s ease; }
  .main-nav.open { transform: none; }
  .main-nav a { min-height: 68px; border-bottom: 1px solid var(--line); }
  .main-nav a::after { display: none; }
  .hero { min-height: 100svh; padding: 96px 22px 44px; }
  .scroll-cue { display: none; }
  .eyebrow { top: 104px; }
  .line-link { bottom: 39px; }
  .hero-symbol { width: min(94vw, 620px); min-height: 600px; opacity: 1; }
  .hero-pack-art { width: min(66vw, 430px); height: min(67vh, 560px); }
  .ring-one { width: 450px; height: 450px; }
  .ring-two { width: 520px; height: 220px; }
  .vertical-copy { display: none; }
  .brand-intro, .culture, .partnership { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .product-item { padding: 10px; }
  .product-photo { height: 330px; }
  .culture { padding-left: 0; padding-right: 0; }
  .culture-copy { padding: 90px 32px; }
  .culture-visual { min-height: 600px; }
  .journey { grid-template-columns: repeat(2, 1fr); }
  .partnership { gap: 80px; }
  .partnership-poster { margin: 0 auto; }
}

@media (max-width: 560px) {
  .brand-type small { display: none; }
  .brand-type strong { font-size: 16px; }
  .logo-crop-small { width: 40px; height: 40px; }
  .section { padding: 88px 22px; }
  .hero { padding: 88px 18px 42px; }
  .eyebrow { top: 92px; font-size: 10px; }
  .hero-symbol { width: 100%; min-height: 560px; }
  .hero-pack-art { width: min(78vw, 380px); height: min(64vh, 520px); }
  .ring-one { width: 355px; height: 355px; }
  .ring-two { width: 410px; height: 180px; }
  .section-top { align-items: flex-start; flex-direction: column; gap: 30px; }
  .brand-intro { gap: 50px; }
  .brand-story { padding-top: 28px; }
  .brand-story .lead { font-size: 19px; }
  .brand-principles { grid-template-columns: 1fr; }
  .brand-principles div { padding: 20px 0; border-bottom: 1px solid var(--line); }
  .product-grid { grid-template-columns: 1fr; gap: 22px; }
  .product-photo { height: 440px; }
  .culture-copy { padding: 88px 22px; }
  .culture-visual { min-height: 500px; }
  .journey { grid-template-columns: 1fr; }
  .journey-step { min-height: 220px; }
  .journey-step h3 { margin-top: 55px; }
  .partnership { padding-top: 88px; padding-bottom: 100px; }
  .partnership-poster::before { inset: 14px -10px -14px 14px; }
  .support-grid span { padding: 16px 12px; font-size: 12px; }
  .footer-main { grid-template-columns: 1fr auto; }
  .footer-main > p { grid-column: 1 / -1; grid-row: 2; }
  .footer-bottom { flex-direction: column; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}