/* 模板 token：換產品主要改呢度（色、字體）。--bg 會畀 3D 折射層讀，一定要係實色 */
:root{
  --bg:#efe8dc; --paper:#f6f2ea; --stone:#ddd3c4; --ink:#2a2520; --ink-2:#5f564b; --dim:#948978; --accent:#9a7552;
  --line:rgba(42,37,32,.14);
  --en:"Cormorant Garamond",Georgia,serif; --zh-serif:"Noto Serif TC","Songti TC",serif; --sans:"Inter","Noto Sans TC",system-ui,sans-serif;
  --gut:clamp(20px,3.4vw,52px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg)}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
em{font-style:italic}
.eyebrow{font-family:var(--sans);font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--dim)}
.en{font-family:var(--en);font-weight:300;letter-spacing:-.02em;line-height:.95}
.en em{font-weight:300}
.zh{font-family:var(--zh-serif);font-weight:300;letter-spacing:.02em;line-height:1.3}

/* 3D 主體：固定全畫面；大字喺佢下面，UI 喺佢上面 */
#stage{position:fixed;inset:0;width:100vw;height:100vh;z-index:5;pointer-events:none}
section{position:relative}
.above{position:relative;z-index:10}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:40;display:flex;align-items:center;justify-content:space-between;padding:22px var(--gut)}
.nav::before{content:"";position:absolute;inset:0 0 -30px;z-index:-1;pointer-events:none;background:linear-gradient(180deg,rgba(239,232,220,.94),rgba(239,232,220,.7) 55%,transparent)}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--en);font-weight:500;font-size:18px;letter-spacing:.3em}
.logo i{width:12px;height:18px;background:linear-gradient(160deg,#fff,#cfc3b1);clip-path:polygon(50% 0,100% 28%,100% 78%,50% 100%,0 78%,0 28%);box-shadow:inset 0 0 0 1px var(--ink)}
.logo b{font-family:var(--zh-serif);font-weight:400;font-size:14px;letter-spacing:.2em;color:var(--ink-2);margin-left:2px}
.links{display:flex;gap:30px;font-size:13px;letter-spacing:.12em;color:var(--ink-2)}
.links a:hover{color:var(--ink)}
.pill{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 22px;border-radius:99px;border:1px solid rgba(42,37,32,.3);font-size:13px;letter-spacing:.1em;transition:background .35s,color .35s,border-color .35s;white-space:nowrap}
.pill:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.pill--solid{background:var(--ink);color:var(--paper);border-color:var(--ink);height:54px;padding:0 30px;font-size:15px}
.pill--solid:hover{background:var(--accent);border-color:var(--accent)}
.pill svg{width:18px;height:18px;fill:currentColor}

/* ---------- 1 hero ---------- */
.hero{height:100svh;overflow:hidden}
.headline{position:absolute;z-index:2;left:0;right:0;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;
          font-family:var(--en);font-weight:300;font-size:clamp(96px,19vw,360px);line-height:.8;letter-spacing:-.035em;color:var(--ink)}
.headline .l1{transform:translateX(-.42em)}
.headline .l2{transform:translateX(.38em)}
.headline em{font-weight:300}
.obj-slot{position:absolute;left:50%;top:51%;width:1px;height:66svh;transform:translate(-50%,-50%)}
/* 光效：斜射光＋彩虹帶＋地面影／焦散（淺底唔用 bloom） */
.beam{position:absolute;z-index:1;left:-10%;top:-30%;width:70%;height:90%;transform:rotate(28deg);transform-origin:100% 100%;
      background:linear-gradient(90deg,transparent,rgba(255,252,244,.8) 45%,rgba(255,252,244,.8) 55%,transparent);filter:blur(30px);opacity:.9;pointer-events:none}
.spectrum{position:absolute;z-index:1;left:50%;top:60%;width:58vw;height:15svh;transform-origin:0 50%;transform:rotate(14deg);pointer-events:none;mix-blend-mode:multiply;filter:blur(10px);
      background:linear-gradient(180deg,transparent 0,#ff7a7a 18%,#ffb35c 32%,#ffe66b 46%,#8fe08a 60%,#6fb8ff 74%,#b38bff 88%,transparent 100%);
      -webkit-mask-image:linear-gradient(90deg,transparent,#000 18%,rgba(0,0,0,.6) 60%,transparent);mask-image:linear-gradient(90deg,transparent,#000 18%,rgba(0,0,0,.6) 60%,transparent);opacity:.35}
.floor{position:absolute;z-index:1;left:50%;top:calc(51% + 36svh);width:0;height:0;pointer-events:none}
.floor i{position:absolute;left:0;top:0;border-radius:50%;transform:translate(-50%,-50%)}
.floor .shadow{width:34svh;height:5svh;background:radial-gradient(closest-side,rgba(74,60,44,.34),rgba(74,60,44,.12) 60%,transparent)}
.floor .caustic{width:14svh;height:2.4svh;margin-left:2svh;background:radial-gradient(closest-side,rgba(255,244,214,.95),rgba(255,236,190,.4) 55%,transparent);mix-blend-mode:screen}
.hero-foot{position:absolute;z-index:10;left:var(--gut);right:var(--gut);bottom:30px;display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:20px}
.hero-foot p{font-family:var(--zh-serif);font-size:15px;line-height:1.8;color:var(--ink-2)}
.hero-foot .scroll,.hero-foot .tag{font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:var(--dim)}
.hero-foot .tag{justify-self:end;letter-spacing:.18em}

/* ---------- 2 manifesto ---------- */
.manifesto{height:240svh}
.manifesto .pin{position:sticky;top:0;z-index:10;height:100svh;display:flex;align-items:center;padding:0 clamp(20px,7vw,120px)}
.manifesto .copy{max-width:min(50vw,760px)}
.manifesto .eyebrow{margin-bottom:34px}
.manifesto p{font-family:var(--zh-serif);font-weight:300;font-size:clamp(26px,2.7vw,46px);line-height:1.62;letter-spacing:.03em}
.manifesto p .w{opacity:.13}
.manifesto p em{font-style:normal;color:var(--accent)}

/* ---------- 共用標題 ---------- */
.sec-head{padding:0 var(--gut);margin-bottom:8svh}
.sec-head .eyebrow{margin-bottom:24px}
.sec-head h2.en{font-size:clamp(56px,8vw,150px)}
.sec-head h2.zh{font-size:clamp(34px,4.4vw,72px)}
.sec-head .lede{margin-top:22px;max-width:34em;color:var(--ink-2);font-size:16px}

/* ---------- 3 collection ---------- */
.collection{padding:20svh 0 16svh;background:var(--bg)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(28px,3vw,48px) clamp(14px,1.6vw,24px);padding:0 var(--gut)}
.item figure{aspect-ratio:1;overflow:hidden;border-radius:14px;background:var(--stone)}
.item img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.item:hover img{transform:scale(1.04)}
.item .meta{display:flex;justify-content:space-between;align-items:baseline;margin-top:18px;gap:12px}
.item h3{font-family:var(--zh-serif);font-weight:400;font-size:20px;letter-spacing:.04em}
.item .price{font-family:var(--en);font-size:22px;font-weight:400}
.item .spec{margin-top:4px;font-size:13px;color:var(--dim);letter-spacing:.02em}
.item .ask{display:inline-block;margin-top:12px;font-size:13px;color:var(--accent);border-bottom:1px solid transparent;transition:border-color .3s}
.item .ask:hover{border-color:currentColor}

/* ---------- 4 light ---------- */
.light{height:230svh;background:var(--bg)}
.light .pin{position:sticky;top:0;height:100svh;overflow:hidden}
.light .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:30% 50%;transform-origin:30% 45%;z-index:1}
.light .veil{position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,var(--bg) 0%,rgba(239,232,220,.1) 26%,rgba(239,232,220,0) 60%,var(--bg) 100%)}
.light .txt{position:absolute;z-index:10;left:var(--gut);right:var(--gut);top:14svh;text-align:right}
.light .txt .eyebrow{margin-bottom:20px}
.light h2{font-size:clamp(52px,7vw,128px)}
.light .cap{position:absolute;z-index:10;right:var(--gut);bottom:9svh;text-align:right;font-family:var(--zh-serif);font-size:17px;line-height:1.9;color:var(--ink-2)}

/* ---------- 5 uses ---------- */
.uses{padding:20svh 0 16svh;background:var(--bg)}
.trio{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:clamp(12px,1.4vw,20px);padding:0 var(--gut)}
.card{position:relative;overflow:hidden;border-radius:16px;aspect-ratio:4/5;background:var(--stone)}
.card:first-child{aspect-ratio:auto}
.card img{position:absolute;inset:-6% 0;width:100%;height:112%;object-fit:cover;will-change:transform}
.card:first-child img{object-position:62% 50%}
.card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(38,30,22,.62),rgba(38,30,22,0) 46%)}
.card figcaption{position:absolute;left:24px;right:24px;bottom:22px;z-index:2;color:#fbf7f0}
.card figcaption b{display:block;font-family:var(--zh-serif);font-weight:400;font-size:clamp(24px,2vw,32px);letter-spacing:.08em}
.card figcaption span{display:block;margin-top:6px;font-size:14px;line-height:1.65;opacity:.9;max-width:26em}

/* ---------- 6 buy ---------- */
.buy{padding:14svh 0 18svh;background:var(--bg)}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,64px);padding:0 var(--gut)}
.steps li{border-top:1px solid var(--line);padding-top:24px}
.steps .n{font-family:var(--en);font-style:italic;font-size:22px;color:var(--accent)}
.steps h3{margin-top:14px;font-family:var(--zh-serif);font-weight:400;font-size:clamp(20px,1.7vw,26px)}
.steps p{margin-top:10px;color:var(--ink-2);max-width:28em}

/* ---------- 7 cta + footer ---------- */
.cta{height:100svh;display:grid;place-items:center;text-align:center;padding:0 20px}
.cta>div{width:100%}
.cta .eyebrow{position:absolute!important;left:0;right:0;top:14svh}
.cta .act{position:absolute;z-index:10;left:0;right:0;bottom:9svh;padding:0 var(--gut)}
.cta h2{font-size:clamp(76px,11vw,210px);line-height:.86}
.cta p{margin:0 auto 26px;max-width:26em;font-family:var(--zh-serif);font-size:18px;color:var(--ink-2);text-shadow:0 0 14px var(--bg),0 0 28px var(--bg)}
footer{padding:0 var(--gut) 30px;overflow:hidden}
.wordmark{font-family:var(--en);font-weight:300;font-size:15.2vw;line-height:.8;letter-spacing:-.04em;color:var(--stone);text-align:center;margin:0 -2vw}
.foot{margin-top:26px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:12px;color:var(--dim)}
.foot span{max-width:62em}
.foot nav{display:flex;gap:24px}

.toast{position:fixed;z-index:60;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--ink);color:var(--paper);font-size:13px;padding:12px 20px;border-radius:99px;transition:opacity .35s,transform .35s;max-width:calc(100vw - 32px);text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (max-width:820px){
  .links{display:none}
  .logo{font-size:15px;letter-spacing:.22em}
  .logo b{display:none}
  .nav{padding:18px 16px}
  .nav .pill{height:36px;padding:0 14px;font-size:12px}
  :root{--gut:16px}
  .headline{font-size:31vw;top:44%}
  .obj-slot{top:44%;height:46svh}
  .floor{top:calc(44% + 25svh)}
  .floor .shadow{width:26svh}
  .spectrum{width:90vw;top:56%}
  .hero-foot{grid-template-columns:1fr;gap:10px;bottom:22px}
  .hero-foot .scroll{display:none}
  .hero-foot .tag{justify-self:start}
  .manifesto .pin{align-items:flex-start;padding-top:15svh}
  .manifesto .copy{max-width:none}
  .manifesto p{font-size:22px}
  .grid{grid-template-columns:1fr 1fr;gap:28px 12px}
  .item h3{font-size:16px}
  .item .price{font-size:18px}
  .item .meta{flex-direction:column;gap:0;margin-top:12px}
  .item .spec{font-size:12px}
  .light .txt{text-align:left;top:12svh}
  .light .cap{left:var(--gut);text-align:left;font-size:15px}
  .light .bg{object-position:22% 50%}
  .trio{grid-template-columns:1fr}
  .card:first-child{aspect-ratio:4/3}
  .steps{grid-template-columns:1fr;gap:32px}
  .foot nav{flex-wrap:wrap;gap:12px 20px}
}
@media (prefers-reduced-motion:reduce){
  .manifesto,.light{height:auto}
  .manifesto .pin,.light .pin{position:relative;min-height:100svh}
  .manifesto p .w{opacity:1}
}

/* CTA：大字喺主體後面（會被折射），文字同掣喺前面 */
.cta h2{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center}
.cta h2 span:first-child{transform:translateX(-.3em)}
.cta h2 span:last-child{transform:translateX(.3em)}
.cta .eyebrow,.cta p,.cta .pill{position:relative;z-index:10}