/* ============================================================
   AI NI 艾妮 · Skin Care & Management — Design System
   Palette: white / cream / beige / pale gold · serif + geometric sans
   ============================================================ */
:root{
  --paper:#FDFBF6;
  --cream:#F7F1E6;
  --beige:#EFE5D2;
  --gold:#C2A265;
  --gold-deep:#A07F3F;
  --gold-line:rgba(160,127,63,.28);
  --ink:#3D362A;
  --ink-soft:#7A7060;
  --ink-dark:#2A2519;
  --white:#FFFFFF;
  --serif:"Cormorant Garamond","Noto Serif SC",serif;
  --sans:"Jost","Noto Sans SC",sans-serif;
  --zh-serif:"Noto Serif SC","Cormorant Garamond",serif;
  --zh-sans:"Noto Sans SC","Jost",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip}
body{
  font-family:var(--sans);font-weight:300;font-size:1.02rem;line-height:1.75;
  color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.zh{font-family:var(--zh-sans);letter-spacing:.02em}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:var(--gold);color:#fff}

.container{max-width:1180px;margin-inline:auto;padding-inline:clamp(20px,4.5vw,44px)}
.section{padding-block:clamp(4.2rem,9vw,7.5rem)}
.section--cream{background:var(--cream)}
.section--beige{background:var(--beige)}
.center{text-align:center}

/* ---------- type ---------- */
.eyebrow{
  font-family:var(--sans);font-size:.72rem;font-weight:500;
  letter-spacing:.42em;text-transform:uppercase;color:var(--gold-deep);
  display:inline-flex;align-items:center;gap:.9em;margin-bottom:1.4rem;
}
.eyebrow::before{content:"";width:2.2em;height:1px;background:var(--gold)}
.eyebrow--bare::before{display:none}
body.zh .eyebrow{letter-spacing:.55em;font-size:.78rem}
h1,h2,h3,.serif{font-family:var(--serif);font-weight:500;line-height:1.14;color:var(--ink-dark)}
body.zh h1,body.zh h2,body.zh h3,body.zh .serif{font-family:var(--zh-serif);font-weight:600;line-height:1.3}
h1{font-size:clamp(2.5rem,6vw,4.4rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.9rem);margin-bottom:1.2rem}
h3{font-size:clamp(1.25rem,2vw,1.55rem)}
h1 em,h2 em{font-style:italic;color:var(--gold-deep);font-weight:400}
body.zh h1 em,body.zh h2 em{font-style:normal;color:var(--gold-deep)}
.lede{font-size:clamp(1.05rem,1.6vw,1.24rem);color:var(--ink-soft);max-width:44em}
.center .lede{margin-inline:auto}
p+p{margin-top:1em}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--sans);font-size:.8rem;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;
  padding:1.02em 2.3em;border-radius:999px;border:1px solid var(--gold);
  transition:all .45s var(--ease);cursor:pointer;white-space:nowrap;
}
body.zh .btn{letter-spacing:.3em;font-size:.86rem}
.btn--solid{background:var(--gold);color:#fff}
.btn--solid:hover{background:var(--gold-deep);border-color:var(--gold-deep);transform:translateY(-2px);box-shadow:0 12px 28px -12px rgba(160,127,63,.55)}
.btn--ghost{color:var(--ink-dark);background:transparent}
.btn--ghost:hover{background:var(--gold);color:#fff;transform:translateY(-2px)}
.btn--light{color:#fff;border-color:rgba(255,255,255,.75)}
.btn--light:hover{background:#fff;color:var(--ink-dark);border-color:#fff}
.textlink{
  font-family:var(--sans);font-size:.8rem;font-weight:500;letter-spacing:.24em;
  text-transform:uppercase;color:var(--gold-deep);position:relative;padding-bottom:.35em;
}
.textlink::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background:var(--gold);transform-origin:left;transition:transform .5s var(--ease)}
.textlink:hover::after{transform:scaleX(.4)}

/* ---------- header ---------- */
.site-head{
  position:fixed;inset:0 0 auto 0;z-index:90;
  transition:box-shadow .5s var(--ease),padding .5s var(--ease);
  padding-block:1.4rem;
}
/* blur lives on a pseudo-element so the fixed mobile nav is not trapped
   in a backdrop-filter containing block */
.site-head::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:rgba(253,251,246,.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  opacity:0;transition:opacity .5s var(--ease);
}
.site-head.scrolled::before{opacity:1}
.site-head .container{display:flex;align-items:center;justify-content:space-between;max-width:1320px}
.site-head.scrolled{box-shadow:0 1px 0 var(--gold-line);padding-block:.7rem}
.brand{display:flex;align-items:baseline;gap:.7em;line-height:1}
.brand-en{font-family:var(--serif);font-weight:600;font-size:1.55rem;letter-spacing:.24em;color:#fff;transition:color .4s}
.brand-zh{font-family:var(--zh-serif);font-size:.95rem;letter-spacing:.35em;color:var(--gold);transform:translateY(-1px)}
.nav{display:flex;align-items:center;gap:clamp(1.2rem,2.6vw,2.4rem)}
.nav a.navlink{
  font-size:.78rem;font-weight:400;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(255,255,255,.88);position:relative;padding-block:.4em;transition:color .4s;
}
body.zh .nav a.navlink{letter-spacing:.28em;font-size:.85rem}
.nav a.navlink::after{content:"";position:absolute;left:50%;bottom:0;width:0;height:1px;background:var(--gold);transition:all .4s var(--ease);transform:translateX(-50%)}
.nav a.navlink:hover::after,.nav a.navlink.active::after{width:100%}
.nav a.navlink.active{color:var(--gold)}
.head-cta{display:flex;align-items:center;gap:1rem;position:relative;z-index:115}
body.nav-open{overflow:hidden}
body.nav-open .lang-pill{color:var(--ink-dark);border-color:var(--gold)}
.lang-pill{
  font-size:.72rem;font-weight:500;letter-spacing:.18em;
  border:1px solid rgba(255,255,255,.55);border-radius:999px;
  padding:.5em 1.15em;color:#fff;transition:all .4s var(--ease);
}
.lang-pill:hover{background:var(--gold);border-color:var(--gold);color:#fff}
.btn--book{padding:.78em 1.7em;font-size:.72rem}
.site-head.scrolled .brand-en,.site-head.solid .brand-en{color:var(--ink-dark)}
.site-head.scrolled .nav a.navlink,.site-head.solid .nav a.navlink{color:var(--ink)}
.site-head.scrolled .nav a.navlink.active,.site-head.solid .nav a.navlink.active{color:var(--gold-deep)}
.site-head.scrolled .lang-pill,.site-head.solid .lang-pill{color:var(--ink);border-color:var(--gold)}
.site-head.scrolled .lang-pill:hover,.site-head.solid .lang-pill:hover{color:#fff}
.burger{display:none;background:none;border:none;width:42px;height:42px;position:relative;cursor:pointer;z-index:120}
.burger span{position:absolute;left:8px;right:8px;height:1.5px;background:#fff;transition:all .4s var(--ease)}
.burger span:nth-child(1){top:15px}.burger span:nth-child(2){top:21px}.burger span:nth-child(3){top:27px}
.site-head.scrolled .burger span,.site-head.solid .burger span{background:var(--ink-dark)}
body.nav-open .burger span{background:var(--ink-dark)}
body.nav-open .burger span:nth-child(1){top:21px;transform:rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:92vh;min-height:92svh;display:flex;align-items:flex-end;color:#fff;overflow:hidden;isolation:isolate}
.hero--short{min-height:64vh;min-height:64svh}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;animation:kenburns 22s var(--ease) both alternate infinite}
@keyframes kenburns{from{transform:scale(1)}to{transform:scale(1.09)}}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(42,37,25,.34) 0%,rgba(42,37,25,.08) 42%,rgba(42,37,25,.62) 100%)}
.hero-inner{padding-block:clamp(4rem,10vh,7rem);max-width:820px}
.hero h1{color:#fff;text-shadow:0 2px 30px rgba(0,0,0,.25)}
.hero h1 em{color:#E8CE96}
.hero .eyebrow{color:#E8CE96}
.hero .eyebrow::before{background:#E8CE96}
.hero .lede{color:rgba(255,255,255,.92);margin-top:1.4rem;text-shadow:0 1px 18px rgba(0,0,0,.3)}
.hero-cta{display:flex;gap:1rem;margin-top:2.4rem;flex-wrap:wrap}
.scroll-hint{position:absolute;left:50%;bottom:1.6rem;transform:translateX(-50%);width:1px;height:56px;overflow:hidden}
.scroll-hint::after{content:"";position:absolute;top:-56px;left:0;width:1px;height:56px;background:linear-gradient(180deg,transparent,#fff);animation:drop 2.2s var(--ease) infinite}
@keyframes drop{to{top:56px}}

/* ---------- marquee ---------- */
.marquee{border-block:1px solid var(--gold-line);padding-block:1.15rem;overflow:hidden;background:var(--paper)}
.marquee-track{display:flex;gap:3.5rem;padding-right:3.5rem;width:max-content;animation:slide 46s linear infinite}
.marquee span{font-family:var(--serif);font-style:italic;font-size:1.15rem;color:var(--ink-soft);white-space:nowrap;display:flex;align-items:center;gap:3.5rem}
.marquee span::after{content:"✦";font-style:normal;font-size:.6rem;color:var(--gold)}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2.5rem,6vw,5.5rem);align-items:center}
.split--rev>.split-media{order:2}
.split-media{position:relative}
.img-frame{position:relative}
.img-frame::before{content:"";position:absolute;inset:0;border:1px solid var(--gold);transform:translate(16px,16px);z-index:0;transition:transform .7s var(--ease)}
.img-frame:hover::before{transform:translate(10px,10px)}
.img-frame img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.split-body .lede{margin-bottom:1.4rem}
.split-body .textlink{margin-top:1.8rem;display:inline-block}

/* ---------- cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(1.6rem,3.5vw,2.8rem)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.6rem,3vw,2.6rem)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(1.4rem,2.6vw,2.2rem)}
.card{background:var(--white);border:1px solid var(--gold-line);transition:transform .6s var(--ease),box-shadow .6s var(--ease)}
.card:hover{transform:translateY(-6px);box-shadow:0 30px 50px -30px rgba(61,54,42,.28)}
.card-media{aspect-ratio:4/3;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.card:hover .card-media img{transform:scale(1.06)}
.card-body{padding:1.8rem 1.7rem 2rem}
.card-body .num{font-family:var(--serif);font-style:italic;color:var(--gold);font-size:1rem;letter-spacing:.1em}
.card-body h3{margin:.5rem 0 .55rem}
.card-body p{color:var(--ink-soft);font-size:.95rem}
.card-body .textlink{margin-top:1.2rem;display:inline-block;font-size:.72rem}

/* ---------- steps ---------- */
.step .n{font-family:var(--serif);font-size:2.9rem;font-weight:300;color:var(--gold);line-height:1;font-style:italic}
.step h3{margin:.8rem 0 .5rem}
.step p{color:var(--ink-soft);font-size:.96rem}

/* ---------- ghost hanzi ---------- */
.ghost-wrap{position:relative;overflow:hidden}
.ghost-hanzi{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-54%);
  font-family:var(--zh-serif);font-weight:600;white-space:nowrap;
  font-size:clamp(6rem,17vw,13rem);letter-spacing:.12em;
  color:transparent;-webkit-text-stroke:1px rgba(160,127,63,.16);
  pointer-events:none;user-select:none;z-index:0;
}
@supports not (-webkit-text-stroke:1px black){.ghost-hanzi{color:rgba(160,127,63,.07)}}
.ghost-wrap>.container{position:relative;z-index:1}

/* ---------- quote ---------- */
.quote-band blockquote{font-family:var(--zh-serif);font-weight:600;font-size:clamp(1.6rem,3.4vw,2.6rem);line-height:1.55;color:var(--ink-dark);letter-spacing:.06em}
.quote-band .en-tr{font-family:var(--serif);font-style:italic;font-size:clamp(1.02rem,1.6vw,1.25rem);color:var(--ink-soft);margin-top:1.4rem}
.quote-band cite{display:block;margin-top:1.8rem;font-style:normal;font-family:var(--sans);font-size:.78rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold-deep)}

/* ---------- pillars ---------- */
.pillar{text-align:center;padding:2.4rem 1.4rem;border:1px solid var(--gold-line);background:rgba(255,255,255,.55);transition:all .5s var(--ease)}
.pillar:hover{background:#fff;transform:translateY(-5px);box-shadow:0 24px 44px -30px rgba(61,54,42,.3)}
.pillar svg{width:44px;height:44px;stroke:var(--gold-deep);fill:none;stroke-width:1.3;margin:0 auto 1.1rem}
.pillar h3{font-size:1.18rem;margin-bottom:.55rem}
.pillar .zh-tag{display:block;font-family:var(--zh-serif);color:var(--gold-deep);font-size:.9rem;letter-spacing:.3em;margin-bottom:.9rem}
.pillar p{font-size:.9rem;color:var(--ink-soft)}

/* ---------- price band ---------- */
.price-figure{font-family:var(--serif);font-size:clamp(3.4rem,9vw,6.5rem);font-weight:400;color:var(--ink-dark);line-height:1}
.price-figure sup{font-size:.35em;color:var(--gold-deep);font-style:italic}
.price-meta{font-family:var(--sans);letter-spacing:.28em;text-transform:uppercase;font-size:.78rem;color:var(--gold-deep);margin-top:1.2rem}
body.zh .price-meta{letter-spacing:.4em}

/* ---------- cta banner ---------- */
.cta-banner{position:relative;color:#fff;text-align:center;overflow:hidden;isolation:isolate;padding-block:clamp(5rem,12vw,8.5rem)}
.cta-banner .bg{position:absolute;inset:0;z-index:-2}
.cta-banner .bg img{width:100%;height:100%;object-fit:cover}
.cta-banner::after{content:"";position:absolute;inset:0;z-index:-1;background:rgba(42,37,25,.55)}
.cta-banner h2{color:#fff}
.cta-banner .lede{color:rgba(255,255,255,.9);margin:0 auto 2.2rem}
.cta-banner .phone{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:.08em;color:#E8CE96;display:inline-block;margin-bottom:2rem}

/* ---------- service detail ---------- */
.svc-block{padding-block:clamp(3.4rem,7vw,5.5rem);border-top:1px solid var(--gold-line)}
.svc-block.first{border-top:none}
.svc-meta{display:flex;gap:2.2rem;margin-top:1.6rem;font-family:var(--sans)}
.svc-meta div b{display:block;font-family:var(--serif);font-size:1.35rem;font-weight:500;color:var(--gold-deep)}
.svc-meta div span{font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft)}
.checklist{margin-top:1.2rem}
.checklist li{position:relative;padding-left:1.7em;margin-bottom:.55em;color:var(--ink-soft);font-size:.97rem}
.checklist li::before{content:"";position:absolute;left:0;top:.62em;width:.9em;height:1px;background:var(--gold)}

/* ---------- note box ---------- */
.note-box{border:1px solid var(--gold-line);background:var(--cream);padding:clamp(1.8rem,4vw,2.8rem);max-width:860px;margin-inline:auto;text-align:center}
.note-box h3{font-style:italic;font-weight:400;color:var(--gold-deep);margin-bottom:.8rem}
body.zh .note-box h3{font-style:normal}
.note-box p{color:var(--ink-soft);font-size:.95rem}

/* ---------- info / contact ---------- */
.info-card{background:#fff;border:1px solid var(--gold-line);padding:clamp(2rem,4vw,3rem)}
.info-row{display:flex;gap:1.2rem;padding-block:1.15rem;border-bottom:1px solid var(--gold-line);align-items:flex-start}
.info-row:last-child{border-bottom:none}
.info-row svg{width:22px;height:22px;stroke:var(--gold-deep);fill:none;stroke-width:1.4;flex-shrink:0;margin-top:.2em}
.info-row b{display:block;font-family:var(--sans);font-weight:500;font-size:.74rem;letter-spacing:.26em;text-transform:uppercase;color:var(--gold-deep);margin-bottom:.3em}
.map-frame{border:1px solid var(--gold-line);height:100%;min-height:420px}
.map-frame iframe{width:100%;height:100%;min-height:420px;border:0;filter:sepia(.22) saturate(.85)}

/* ---------- faq ---------- */
.faq{max-width:820px;margin-inline:auto}
.faq details{border-bottom:1px solid var(--gold-line);padding-block:1.4rem}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1.5rem;font-family:var(--serif);font-size:1.28rem;font-weight:500;color:var(--ink-dark)}
body.zh .faq summary{font-family:var(--zh-serif)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--serif);font-size:1.5rem;color:var(--gold);transition:transform .4s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin-top:.9rem;color:var(--ink-soft);max-width:60ch}

/* ---------- herb grid ---------- */
.herb{border:1px solid var(--gold-line);padding:2rem 1.6rem;background:rgba(255,255,255,.6);transition:all .5s var(--ease)}
.herb:hover{background:#fff;transform:translateY(-4px)}
.herb .zh-name{font-family:var(--zh-serif);font-size:1.7rem;color:var(--gold-deep);display:block;margin-bottom:.2rem}
.herb h3{font-size:1.05rem;font-style:italic;font-weight:400;margin-bottom:.6rem}
body.zh .herb h3{font-style:normal}
.herb p{font-size:.88rem;color:var(--ink-soft)}

/* ---------- stats ---------- */
.stat .big{font-family:var(--serif);font-size:clamp(3.2rem,7vw,5.2rem);color:var(--gold-deep);line-height:1;font-weight:400}
.stat p{letter-spacing:.2em;text-transform:uppercase;font-size:.75rem;color:var(--ink-soft);margin-top:.6rem}
body.zh .stat p{letter-spacing:.35em}

/* ---------- footer ---------- */
.site-foot{background:var(--ink-dark);color:rgba(255,255,255,.72);padding-top:clamp(3.5rem,7vw,5.5rem)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:clamp(2rem,5vw,4rem);padding-bottom:3rem}
.site-foot .brand-en{color:#fff;font-size:1.7rem}
.foot-tagline{font-family:var(--serif);font-style:italic;color:var(--gold);margin-top:1rem;font-size:1.05rem}
body.zh .foot-tagline{font-family:var(--zh-serif);font-style:normal}
.site-foot h4{font-family:var(--sans);font-size:.72rem;font-weight:500;letter-spacing:.32em;text-transform:uppercase;color:var(--gold);margin-bottom:1.3rem}
.site-foot li{margin-bottom:.7rem;font-size:.93rem}
.site-foot a:hover{color:var(--gold)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-block:1.6rem;font-size:.8rem;color:rgba(255,255,255,.45);display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.disclaimer{font-size:.8rem;color:rgba(255,255,255,.45);max-width:72ch;line-height:1.7;padding-bottom:1.2rem}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.12s}.reveal[data-d="2"]{transition-delay:.24s}
.reveal[data-d="3"]{transition-delay:.36s}.reveal[data-d="4"]{transition-delay:.48s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-bg img{animation:none}
  .marquee-track{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- mobile nav ---------- */
@media (max-width:1020px){
  .nav{
    position:fixed;inset:0;background:var(--cream);flex-direction:column;justify-content:center;
    gap:2.2rem;transform:translateX(100%);transition:transform .55s var(--ease);z-index:110;
  }
  body.nav-open .nav{transform:none}
  .nav a.navlink{color:var(--ink-dark)!important;font-size:1.05rem}
  .burger{display:block}
  .head-cta .btn--book{display:none}
}
@media (max-width:900px){
  .split,.grid-2{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .split--rev>.split-media{order:0}
  .foot-grid{grid-template-columns:1fr}
  .hero{min-height:78vh;min-height:78svh}
  .img-frame::before{inset:0 8px 8px 0;transform:translate(8px,8px)}
  .img-frame:hover::before{transform:translate(8px,8px)}
}
@media (max-width:620px){
  .grid-3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr}
  .svc-meta{flex-wrap:wrap;gap:1.2rem}
  .hero-inner{padding-bottom:5rem}
  .img-frame::before{inset:0 6px 6px 0;transform:translate(6px,6px)}
  .img-frame:hover::before{transform:translate(6px,6px)}
}