:root {
  --ink: #24120d;
  --ink-2: #362018;
  --cream: #f5efe7;
  --paper: #fbf8f3;
  --gold: #b99a73;
  --gold-2: #d8c4a9;
  --muted: #756962;
  --line: rgba(42, 24, 17, 0.16);
  --shadow: 0 28px 70px rgba(39, 19, 12, 0.16);
  --container: min(1180px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: var(--container); margin: 0 auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 9999; background: #fff; padding: 12px 16px; }
.skip-link:focus { top: 12px; }

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 1000;
  transition: background .35s ease, box-shadow .35s ease, color .35s ease;
  color: #fff;
}
.site-header.scrolled { background: rgba(247, 242, 235, .94); color: var(--ink); box-shadow: 0 8px 30px rgba(32, 17, 12, .08); backdrop-filter: blur(18px); }
.nav-wrap { height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; flex-direction: column; line-height: 1.15; }
.brand-en { font-family: Georgia, "Times New Roman", serif; font-size: 21px; letter-spacing: .24em; }
.brand-cn { font-size: 10px; letter-spacing: .25em; opacity: .72; margin-top: 6px; }
.main-nav { display: flex; align-items: center; gap: 28px; font-size: 14px; letter-spacing: .08em; }
.main-nav a { position: relative; }
.main-nav a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: -8px; width: 0; height: 1px; background: currentColor; transition: width .25s ease; }
.main-nav a:hover::after { width: 100%; }
.nav-cta { border: 1px solid rgba(255,255,255,.6); padding: 10px 19px; border-radius: 999px; }
.scrolled .nav-cta { border-color: rgba(36,18,13,.35); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; padding: 9px; }
.nav-toggle span { display: block; height: 1px; background: currentColor; margin: 6px 0; transition: .3s; }

.hero { min-height: 100svh; position: relative; display: flex; align-items: center; overflow: hidden; color: #fff; background: var(--ink); }
.hero-media { position: absolute; inset: 0; background: url("assets/images/store-13.jpg") center/cover no-repeat; transform: scale(1.04); animation: heroZoom 16s ease-in-out infinite alternate; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(25,10,6,.94) 0%, rgba(34,17,11,.82) 45%, rgba(34,17,11,.35) 78%, rgba(34,17,11,.52) 100%), linear-gradient(0deg, rgba(15,6,4,.48), transparent 45%); }
.hero-content { position: relative; z-index: 2; padding-top: 110px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr); align-items: end; gap: 70px; }
.hero-copy { max-width: 690px; padding-bottom: 9vh; }
.eyebrow, .section-no { font-size: 12px; letter-spacing: .28em; text-transform: uppercase; color: var(--gold-2); }
.hero-logo { width: min(550px, 88vw); margin: 18px 0 4px; mix-blend-mode: screen; border-radius: 3px; }
.hero h1 { font-family: Georgia, "Songti SC", serif; font-size: clamp(34px, 5vw, 68px); line-height: 1.12; font-weight: 500; letter-spacing: .06em; margin: 22px 0; }
.hero-lead { max-width: 660px; color: rgba(255,255,255,.78); font-size: 17px; }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-width: 138px; padding: 13px 23px; border-radius: 999px; border: 1px solid transparent; font-size: 14px; letter-spacing: .08em; transition: transform .2s ease, background .2s ease, color .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-light { background: #f3ebe1; color: var(--ink); }
.btn-ghost { border-color: rgba(255,255,255,.45); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.hero-card { align-self: center; margin-bottom: 7vh; padding: 30px; border: 1px solid rgba(255,255,255,.2); background: rgba(45,25,18,.42); backdrop-filter: blur(15px); box-shadow: var(--shadow); }
.hero-card-kicker { margin: 0; font-family: Georgia, serif; letter-spacing: .28em; color: var(--gold-2); font-size: 11px; }
.hero-card-title { margin: 10px 0 24px; font-family: Georgia, "Songti SC", serif; font-size: 24px; }
.hero-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.hero-card-grid div { border-top: 1px solid rgba(255,255,255,.22); padding-top: 17px; }
.hero-card-grid strong { display: block; font: 30px/1 Georgia, serif; }
.hero-card-grid span { display: block; margin-top: 9px; font-size: 11px; color: rgba(255,255,255,.64); }
.scroll-hint { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 2; color: rgba(255,255,255,.66); font-size: 9px; letter-spacing: .28em; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.scroll-hint span { display: block; width: 1px; height: 34px; background: linear-gradient(#fff, transparent); animation: scrollLine 1.8s infinite; }

.intro-band { padding: 21px 0; background: #ebe0d2; overflow: hidden; }
.intro-grid { display: flex; justify-content: center; align-items: center; gap: clamp(18px, 4vw, 54px); font-family: Georgia, "Songti SC", serif; letter-spacing: .2em; font-size: 13px; white-space: nowrap; }
.intro-grid p { margin: 0; }
.intro-grid i { width: 4px; height: 4px; border-radius: 50%; background: var(--gold); }

.section { padding: 125px 0; }
.section h2 { margin: 8px 0 26px; font-family: Georgia, "Songti SC", serif; font-weight: 500; font-size: clamp(38px, 5vw, 66px); line-height: 1.18; letter-spacing: .04em; }
.section p { color: #5f534d; }
.section .lead { font-size: 19px; color: var(--ink); }
.split-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 9vw; align-items: center; }
.section-copy { max-width: 500px; }
.text-link { display: inline-block; margin-top: 25px; padding-bottom: 7px; border-bottom: 1px solid var(--ink); font-size: 14px; letter-spacing: .08em; }
.text-link span { margin-left: 15px; }
.image-frame { position: relative; margin: 0; }
.image-frame img { width: 100%; height: 720px; object-fit: cover; box-shadow: var(--shadow); }
.image-frame::before { content: ""; position: absolute; top: -24px; right: -24px; width: 58%; height: 40%; border: 1px solid var(--gold); z-index: -1; }
.image-frame figcaption { position: absolute; left: -22px; bottom: 34px; background: var(--paper); padding: 13px 21px; font-family: Georgia, "Songti SC", serif; letter-spacing: .14em; font-size: 14px; }

.founder-section { background: #eee3d7; }
.founder-grid { display: grid; grid-template-columns: .95fr 1.05fr; align-items: center; gap: 9vw; }
.founder-photo { position: relative; margin: 0; }
.founder-photo img { width: 100%; height: 760px; object-fit: cover; object-position: center 18%; box-shadow: var(--shadow); }
.founder-year { position: absolute; right: -32px; bottom: 42px; writing-mode: vertical-rl; letter-spacing: .2em; color: var(--gold); font-family: Georgia, serif; font-size: 11px; }
.founder-copy { max-width: 560px; }
.founder-copy h2 em { color: var(--gold); font-style: normal; }
.founder-copy blockquote { margin: 22px 0 30px; padding: 23px 0 23px 28px; border-left: 1px solid var(--gold); color: var(--ink); font-family: Georgia, "Songti SC", serif; font-size: 21px; line-height: 1.8; }
.signature { margin-top: 38px; font-family: Georgia, serif; font-style: italic; letter-spacing: .16em; color: #8d755c; }

.space-section { background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 8vw; align-items: end; margin-bottom: 54px; }
.section-heading > p { max-width: 480px; margin-bottom: 22px; }
.gallery { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: 180px; gap: 16px; }
.gallery-item { position: relative; overflow: hidden; padding: 0; border: 0; background: #ddd; cursor: zoom-in; color: #fff; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .65s ease, filter .4s ease; }
.gallery-item:hover img { transform: scale(1.045); filter: brightness(.85); }
.gallery-item span { position: absolute; inset: auto 0 0 0; padding: 40px 18px 15px; background: linear-gradient(transparent, rgba(20,9,5,.7)); text-align: left; font-size: 13px; letter-spacing: .08em; }
.gallery-item span b { font-family: Georgia, serif; margin-right: 10px; color: var(--gold-2); }
.g1 { grid-column: span 7; grid-row: span 2; }
.g2 { grid-column: span 5; grid-row: span 2; }
.g3 { grid-column: span 4; grid-row: span 2; }
.g4 { grid-column: span 4; grid-row: span 2; }
.g5 { grid-column: span 4; grid-row: span 2; }

.science-section { background: #f0e8df; overflow: hidden; }
.science-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 8vw; align-items: center; }
.science-visual { position: relative; }
.science-visual img { height: 680px; width: 100%; object-fit: cover; box-shadow: var(--shadow); }
.science-badge { position: absolute; right: -28px; bottom: -34px; width: 185px; aspect-ratio: 1; border-radius: 50%; background: var(--ink); color: white; display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: var(--shadow); }
.science-badge span { font: 11px Georgia, serif; letter-spacing: .25em; color: var(--gold-2); }
.science-badge b { margin-top: 8px; font: 20px Georgia, "Songti SC", serif; }
.science-list { margin: 34px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.science-list li { display: grid; grid-template-columns: 50px 1fr; gap: 18px; align-items: center; padding: 17px 0; border-bottom: 1px solid var(--line); }
.science-list li > span { font-family: Georgia, serif; color: var(--gold); }
.science-list b, .science-list small { display: block; }
.science-list small { color: var(--muted); margin-top: 2px; }

.services-section { background: var(--ink); color: #fff; }
.section-heading.light h2, .section-heading.light p { color: #fff; }
.section-heading.light > p { color: rgba(255,255,255,.62); }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.service-card { min-height: 400px; padding: 35px 28px; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); display: flex; flex-direction: column; transition: background .3s ease, transform .3s ease; }
.service-card:hover { background: rgba(255,255,255,.06); transform: translateY(-6px); }
.service-num { color: var(--gold-2); font-family: Georgia, serif; font-size: 13px; }
.service-card h3 { margin: 84px 0 18px; font-family: Georgia, "Songti SC", serif; font-size: 26px; font-weight: 500; }
.service-card p { color: rgba(255,255,255,.58); font-size: 14px; }
.service-tag { margin-top: auto; font: 11px Georgia, serif; letter-spacing: .22em; color: var(--gold); }
.disclaimer { margin: 25px 0 0; text-align: center; color: rgba(255,255,255,.4) !important; font-size: 12px; }

.culture-section { background: #fbf8f3; }
.culture-title { text-align: center; margin-bottom: 65px; }
.culture-list { border-top: 1px solid var(--line); }
.culture-item { display: grid; grid-template-columns: 90px 260px 1fr; gap: 32px; align-items: center; padding: 32px 0; border-bottom: 1px solid var(--line); }
.culture-item span { font-family: Georgia, serif; color: var(--gold); }
.culture-item h3 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: 25px; font-weight: 500; }
.culture-item p { margin: 0; max-width: 670px; }

.contact-section { position: relative; min-height: 760px; display: flex; align-items: center; overflow: hidden; color: #fff; background: #1d0e09; }
.contact-image { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(24,10,6,.95), rgba(24,10,6,.72) 48%, rgba(24,10,6,.35)), url("assets/images/store-07.jpg") center/cover no-repeat; }
.contact-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr .8fr; gap: 9vw; align-items: center; padding: 110px 0; }
.contact-copy h2 { margin: 8px 0 24px; font-family: Georgia, "Songti SC", serif; font-size: clamp(42px, 6vw, 76px); line-height: 1.16; font-weight: 500; }
.contact-copy > p:not(.section-no) { color: rgba(255,255,255,.68); max-width: 520px; }
.contact-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.contact-card { margin: 0; padding: 32px 36px; background: rgba(250,245,238,.92); color: var(--ink); font-style: normal; box-shadow: var(--shadow); }
.contact-card > div { display: grid; grid-template-columns: 88px 1fr; gap: 15px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.contact-card > div:last-child { border-bottom: 0; }
.contact-card span { font: 10px Georgia, serif; letter-spacing: .2em; color: var(--gold); padding-top: 5px; }
.contact-card p { margin: 0; }
.contact-card > div > a { grid-column: 2; font-size: 12px; color: #8c6b50; text-decoration: underline; text-underline-offset: 4px; }

.social-float { position: fixed; right: 18px; top: 50%; transform: translateY(-50%); z-index: 900; display: flex; flex-direction: column; gap: 9px; }
.social-link { width: 56px; min-height: 60px; border-radius: 16px; display: flex; flex-direction: column; justify-content: center; align-items: center; color: #fff; box-shadow: 0 12px 30px rgba(0,0,0,.18); transition: transform .2s ease, filter .2s ease; }
.social-link:hover { transform: translateX(-4px); filter: brightness(1.06); }
.social-link svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.social-link span { font-size: 9px; margin-top: 2px; }
.social-link.xhs { background: #ff2442; }
.social-link.douyin { background: #111; }
.social-link.douyin svg { fill: #fff; stroke: #fff; }

.site-footer { background: #130806; color: rgba(255,255,255,.58); padding: 30px 0; }
.footer-grid { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; font-size: 11px; letter-spacing: .08em; }
.footer-brand { display: flex; flex-direction: column; }
.footer-brand strong { color: #fff; font: 17px Georgia, serif; letter-spacing: .18em; }
.footer-brand span { margin-top: 3px; }
.footer-grid > a { justify-self: end; color: #fff; }

.lightbox { width: min(94vw, 1100px); max-height: 90vh; padding: 0; border: 0; background: transparent; overflow: visible; }
.lightbox::backdrop { background: rgba(13,6,4,.88); backdrop-filter: blur(7px); }
.lightbox img { width: 100%; max-height: 86vh; object-fit: contain; }
.lightbox-close { position: absolute; right: -4px; top: -45px; border: 0; background: transparent; color: #fff; font-size: 38px; cursor: pointer; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes heroZoom { from { transform: scale(1.04); } to { transform: scale(1.1); } }
@keyframes scrollLine { 0% { opacity: 0; transform: scaleY(.2); transform-origin: top; } 50% { opacity: 1; transform: scaleY(1); } 100% { opacity: 0; transform: translateY(10px); } }

@media (max-width: 980px) {
  :root { --container: min(100% - 36px, 760px); }
  .nav-wrap { height: 76px; }
  .nav-toggle { display: block; position: relative; z-index: 1002; color: inherit; }
  .main-nav { position: fixed; inset: 0; background: #21100b; color: #fff; display: flex; flex-direction: column; justify-content: center; gap: 28px; font-size: 18px; transform: translateX(100%); transition: transform .35s ease; }
  .main-nav.open { transform: translateX(0); }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero-content { grid-template-columns: 1fr; gap: 0; align-items: center; }
  .hero-copy { padding-bottom: 0; }
  .hero-card { max-width: 570px; margin: 35px 0 90px; }
  .split-grid, .founder-grid, .science-grid, .contact-grid { grid-template-columns: 1fr; }
  .split-grid { gap: 70px; }
  .section-copy { max-width: none; }
  .founder-grid { gap: 60px; }
  .founder-photo img { height: 680px; }
  .section-heading { grid-template-columns: 1fr; gap: 0; }
  .science-grid { gap: 80px; }
  .science-copy { order: -1; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-item { grid-template-columns: 60px 180px 1fr; }
  .contact-grid { gap: 60px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > p { display: none; }
}

@media (max-width: 680px) {
  :root { --container: calc(100% - 32px); }
  .section { padding: 88px 0; }
  .brand-en { font-size: 18px; }
  .brand-cn { font-size: 9px; }
  .hero { min-height: 900px; }
  .hero-content { padding-top: 116px; }
  .hero-logo { width: 100%; }
  .hero-lead { font-size: 15px; }
  .hero-card { padding: 23px 20px; margin-bottom: 75px; }
  .hero-card-grid strong { font-size: 24px; }
  .intro-grid { justify-content: flex-start; overflow-x: auto; padding-bottom: 4px; }
  .image-frame img { height: 480px; }
  .image-frame::before { right: -10px; top: -12px; }
  .image-frame figcaption { left: 10px; bottom: 16px; }
  .founder-photo img { height: 540px; }
  .founder-year { right: 8px; bottom: 20px; background: rgba(255,255,255,.8); padding: 10px 7px; }
  .founder-copy blockquote { font-size: 18px; }
  .gallery { grid-template-columns: 1fr; grid-auto-rows: 260px; }
  .g1,.g2,.g3,.g4,.g5 { grid-column: auto; grid-row: auto; }
  .science-visual img { height: 480px; }
  .science-badge { width: 140px; right: 12px; bottom: -45px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 330px; }
  .service-card h3 { margin-top: 55px; }
  .culture-item { grid-template-columns: 44px 1fr; gap: 10px 14px; }
  .culture-item p { grid-column: 2; }
  .contact-section { min-height: auto; }
  .contact-grid { padding: 90px 0; }
  .contact-card { padding: 25px 22px; }
  .contact-card > div { grid-template-columns: 70px 1fr; }
  .social-float { right: 9px; top: auto; bottom: 14px; transform: none; flex-direction: row; }
  .social-link { width: 50px; min-height: 52px; border-radius: 14px; }
  .social-link svg { width: 22px; height: 22px; }
  .footer-grid { grid-template-columns: 1fr auto; }
}

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