/* ============ ICHAG — Chinese Cultural ============ */
:root{
  --paper:#eeece7;
  --paper-2:#d8d2cb;
  --ink:#292929;
  --ink-3:#6f6a62;
  --accent:#687886;
  --accent-hover:#98a3ac;
  --seal:#db3356;
  --white:#ffffff;
  --space-1:8px; --space-2:16px; --space-3:24px; --space-4:32px;
  --space-6:48px; --space-8:64px; --space-10:80px; --space-12:100px;
  --font-latin:'Inter',sans-serif;
  --font-accent:'Proza Libre',sans-serif;
  --font-cn:'Noto Serif SC',serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-latin),'Noto Sans CJK SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:15px; line-height:1.75; letter-spacing:.5px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:var(--white)}

/* ---------- header ---------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:20px 40px;
  color:var(--white);
  transition:background .45s ease,color .45s ease,padding .45s ease;
}
.site-header.solid{background:var(--paper);color:var(--ink);padding:14px 40px;box-shadow:0 1px 0 rgba(41,41,41,.08)}
.brand{display:flex;align-items:center;gap:12px}
.brand-seal{
  width:38px;height:38px;flex:none;border:1px solid currentColor;
  display:grid;place-items:center;
  font-family:var(--font-cn);font-weight:900;font-size:20px;line-height:1;
  color:var(--seal); border-color:var(--seal);
}
.brand-name{font-weight:700;letter-spacing:4px;font-size:17px;text-transform:uppercase}
.brand-name small{display:block;font-family:var(--font-cn);font-weight:400;font-size:10px;letter-spacing:6px;opacity:.85}
.site-nav{display:flex;gap:34px}
.site-nav a{
  font-size:12px;text-transform:uppercase;letter-spacing:2px;font-weight:700;
  position:relative;padding-bottom:4px;
}
.site-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:currentColor;transition:width .35s ease;
}
.site-nav a:hover::after,.site-nav a.active::after{width:100%}
@media(max-width:760px){.site-nav{display:none}.site-header{padding:16px 20px}}

/* ---------- hero ---------- */
.hero{position:relative;height:92vh;min-height:600px;overflow:hidden;background:var(--ink)}
.hero img{width:100%;height:100%;object-fit:cover;opacity:.82;transform:scale(1.04);animation:heroZoom 9s ease-out forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(20,20,20,.55),rgba(20,20,20,.05) 55%)}
.hero-inner{
  position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;color:var(--white);padding:0 24px;
}
.hero-cn{
  font-family:var(--font-cn);font-weight:900;
  font-size:clamp(64px,11vw,140px);line-height:1;letter-spacing:.08em;
  text-shadow:0 4px 40px rgba(0,0,0,.35);
}
.hero-title{margin-top:18px;font-size:clamp(20px,3vw,34px);font-weight:700;letter-spacing:6px;text-transform:uppercase}
.hero-sub{margin-top:14px;max-width:560px;font-size:14px;letter-spacing:1px;opacity:.92}
.hero-rule{width:56px;height:1px;background:var(--seal);margin:26px 0 0}

/* ---------- entrance animation ---------- */
.anim{opacity:0;transform:translateY(26px);transition:opacity .6s ease-out,transform .6s ease-out}
.anim.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.18s}.d3{transition-delay:.28s}.d4{transition-delay:.38s}

/* ---------- sections ---------- */
.section{padding:var(--space-12) 40px;max-width:1280px;margin:0 auto}
.section--wide{max-width:none;padding-left:0;padding-right:0}
.kicker{
  font-size:11px;text-transform:uppercase;letter-spacing:3px;font-weight:700;color:var(--accent);
  display:flex;align-items:center;gap:14px;margin-bottom:22px;
}
.kicker::before{content:"";width:34px;height:1px;background:var(--accent)}
.kicker .cn{font-family:var(--font-cn);font-size:13px;letter-spacing:4px;color:var(--ink-3)}
h2.title{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:2px;text-transform:uppercase}
h2.title .cn{display:block;font-family:var(--font-cn);font-weight:900;font-size:22px;letter-spacing:10px;text-transform:none;margin-top:10px;color:var(--ink-3)}
.lede{max-width:640px;color:var(--ink-3);margin-top:20px}

/* split screen */
.split{display:grid;grid-template-columns:1fr 1fr;min-height:520px}
.split--rev .split-media{order:2}
.split-media{position:relative;overflow:hidden;min-height:340px}
.split-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s ease}
.split:hover .split-media img{transform:scale(1.045)}
.split-body{display:flex;flex-direction:column;justify-content:center;padding:var(--space-8) var(--space-10)}
.split-body p{color:var(--ink-3);margin-top:18px;max-width:480px}
@media(max-width:860px){.split{grid-template-columns:1fr}.split-body{padding:var(--space-6) 24px}}

/* ---------- border-link button ---------- */
.btn-border-link{
  display:inline-block;position:relative;margin-top:34px;
  padding:15px 34px;font-size:12px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;
  color:var(--ink);
}
.btn-border-link::before,.btn-border-link::after,
.btn-border-link span::before,.btn-border-link span::after{
  content:"";position:absolute;background:var(--ink);transition:transform .35s ease;
}
.btn-border-link::before{top:0;left:0;width:100%;height:1px;transform-origin:right}
.btn-border-link::after{bottom:0;left:0;width:100%;height:1px;transform-origin:left}
.btn-border-link span::before{top:0;left:0;width:1px;height:100%;transform-origin:bottom}
.btn-border-link span::after{top:0;right:0;width:1px;height:100%;transform-origin:top}
.btn-border-link:hover::before{transform:scaleX(0);transform-origin:left}
.btn-border-link:hover::after{transform:scaleX(0);transform-origin:right}
.btn-border-link:hover span::before{transform:scaleY(0);transform-origin:top}
.btn-border-link:hover span::after{transform:scaleY(0);transform-origin:bottom}
.btn-border-link:hover{color:var(--accent)}
.btn-border-link--light{color:var(--white)}
.btn-border-link--light::before,.btn-border-link--light::after,
.btn-border-link--light span::before,.btn-border-link--light span::after{background:var(--white)}
.btn-border-link--light:hover{color:var(--accent-hover)}
.btn-fill{
  display:inline-block;margin-top:34px;padding:16px 38px;background:var(--accent);color:var(--white);
  font-size:12px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;transition:background .3s ease;
}
.btn-fill:hover{background:var(--accent-hover)}

/* ---------- product grid ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:56px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:56px}
@media(max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-2,.grid-4{grid-template-columns:1fr}}
.card-img{
  position:relative;aspect-ratio:1/1;overflow:hidden;background:var(--white);
}
.card-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .5s ease}
.card-img img.alt{opacity:0}
.card:hover .card-img img.alt{opacity:1}
.card:hover .card-img img.main{opacity:0}
.card-title{margin-top:18px;text-align:center;font-weight:700;font-size:14px;letter-spacing:1px}
.card-cn{text-align:center;font-family:var(--font-cn);font-size:12px;letter-spacing:3px;color:var(--ink-3);margin-top:6px}
.card-tag{
  position:absolute;top:14px;left:14px;z-index:2;background:var(--seal);color:#fff;
  font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;padding:5px 10px;
}

/* ---------- dark scheme ---------- */
.scheme-dark{background:var(--ink);color:var(--paper)}
.scheme-dark .lede,.scheme-dark p{color:rgba(238,236,231,.72)}
.scheme-dark .kicker{color:var(--accent-hover)}
.scheme-dark .kicker::before{background:var(--accent-hover)}
.scheme-dark h2.title .cn{color:rgba(238,236,231,.55)}
.scheme-2{background:var(--paper-2)}

/* ---------- culture essays ---------- */
.essay{border-top:1px solid rgba(41,41,41,.18);padding:44px 0;display:grid;grid-template-columns:200px 1fr;gap:48px}
.essay:last-child{border-bottom:1px solid rgba(41,41,41,.18)}
.essay-glyph{font-family:var(--font-cn);font-weight:900;font-size:56px;line-height:1.1;color:var(--ink)}
.essay-glyph small{display:block;font-family:var(--font-latin);font-weight:700;font-size:11px;letter-spacing:3px;text-transform:uppercase;color:var(--accent);margin-top:14px}
.essay h3{font-size:20px;letter-spacing:1.5px;font-weight:700;margin-bottom:14px}
.essay p{color:var(--ink-3);max-width:720px}
.essay p+p{margin-top:12px}
@media(max-width:760px){.essay{grid-template-columns:1fr;gap:20px}.essay-glyph{font-size:44px}}

/* ---------- product detail ---------- */
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:start;margin-top:64px}
.pd-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.pd-gallery img{aspect-ratio:1/1;object-fit:cover;width:100%;background:var(--white)}
.pd-info h3{font-size:24px;font-weight:700;letter-spacing:1px;line-height:1.4}
.pd-info .cn{font-family:var(--font-cn);color:var(--ink-3);letter-spacing:3px;margin-top:8px;font-size:14px}
.pd-price{margin-top:20px;font-size:22px;font-weight:700;letter-spacing:1px}
.pd-price small{font-size:12px;color:var(--ink-3);font-weight:400;letter-spacing:1px}
.pd-bullets{margin-top:26px;border-top:1px solid rgba(41,41,41,.15)}
.pd-bullets li{list-style:none;padding:16px 0;border-bottom:1px solid rgba(41,41,41,.1);font-size:14px;color:var(--ink-3)}
.pd-bullets li strong{display:block;color:var(--ink);letter-spacing:1px;font-size:13px;text-transform:uppercase;margin-bottom:4px}
.pd-meta{margin-top:22px;font-size:12px;color:var(--ink-3);letter-spacing:1px}
.pd-meta span{display:inline-block;margin-right:22px}
@media(max-width:900px){.pd{grid-template-columns:1fr;gap:36px}}

/* ---------- big CTA ---------- */
.cta-band{text-align:center;padding:var(--space-12) 24px}
.cta-band .big-cn{font-family:var(--font-cn);font-weight:900;font-size:clamp(40px,7vw,84px);letter-spacing:.12em;line-height:1.15}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(238,236,231,.75);padding:var(--space-10) 40px var(--space-6)}
.footer-grid{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}
.site-footer h4{color:var(--paper);font-size:12px;letter-spacing:3px;text-transform:uppercase;margin-bottom:18px}
.site-footer a{display:block;padding:5px 0;font-size:13px;letter-spacing:1px;transition:color .3s}
.site-footer a:hover{color:var(--white)}
.footer-bottom{max-width:1280px;margin:56px auto 0;padding-top:24px;border-top:1px solid rgba(238,236,231,.15);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;letter-spacing:1px;color:rgba(238,236,231,.45)}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:32px}}

/* page hero (sub pages) */
.page-hero{padding:180px 40px 90px;background:var(--paper-2);text-align:center}
.page-hero .cn{font-family:var(--font-cn);font-weight:900;font-size:clamp(44px,7vw,76px);letter-spacing:.14em;line-height:1.1}
.page-hero h1{font-size:clamp(18px,2.4vw,26px);letter-spacing:5px;text-transform:uppercase;font-weight:700;margin-top:18px}
.page-hero p{max-width:560px;margin:18px auto 0;color:var(--ink-3)}