/* ==========================================================================
   DAO YUN AGARWOOD — Global Website
   Visual identity locked to the brand VI (D-Biz_SPAF_Sample_C)
     A-07 品牌顔色   苔古 #646853 · 茶色 #a95a40 · 凝脂 #d9d0be · 烏黑 #31302c
     A-08 品牌字體   源柔ゴシックP — rounded gothic, one family throughout
     A-09 墨稿/反白稿 墨稿 on 凝脂 grounds, 反白稿 on 烏黑 grounds
   Grounds alternate: cream paper for editorial, ink for the 3D stages.
   ========================================================================== */

:root{
  /* ---- A-07: the four brand colours. Nothing outside this set. ---- */
  --moss:      #646853;
  --tea:       #a95a40;
  --cream:     #d9d0be;
  --soot:      #31302c;

  /* tints, all derived from the four above */
  --paper:     #ece7db;   /* page ground — 凝脂, lightened */
  --paper-2:   #e2dbca;   /* alternating band */
  --paper-3:   #d9d0be;   /* 凝脂 itself — panels, media wells */
  --ink:       #2b2a26;   /* 烏黑, pushed a shade deeper for the stages */
  --moss-d:    #4c5040;
  --moss-l:    #7f8470;
  --tea-d:     #8c4430;
  --tea-l:     #c07d61;

  /* ---- ground-scoped tokens. Redefine these on a container and every
         component inside it flips with no extra rules. ---- */
  --bg:        var(--paper);
  --tx:        var(--soot);
  --tx-2:      rgba(49,48,44,.70);
  --tx-3:      rgba(49,48,44,.44);
  --line:      rgba(49,48,44,.16);
  --line-2:    rgba(49,48,44,.09);
  --well:      rgba(255,255,255,.44);   /* card lift on paper */

  /* ---- type: one rounded gothic family, per A-08 ---- */
  --f-round: "Zen Maru Gothic", "GenJyuuGothic-P", "源柔ゴシックP", "Yuanti TC",
             "Hiragino Maru Gothic ProN", "PingFang TC", "Noto Sans TC",
             "Microsoft JhengHei", system-ui, sans-serif;
  --f-cjk:   "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", var(--f-round);
  --f-ui:    var(--f-round);

  --gut: clamp(20px, 5vw, 88px);
  --maxw: 1440px;
  --ease: cubic-bezier(.22,.61,.2,1);
  --ease-io: cubic-bezier(.65,.05,.36,1);
}

/* an ink ground — A-09 反白稿 territory. Every component inside reads these
   tokens, so one selector retones a whole stage. */
.ink,
.showcase,
#shengji,
#contact,
footer[data-ground="ink"]{
  --tx:     var(--cream);
  --tx-2:   rgba(217,208,190,.74);
  --tx-3:   rgba(217,208,190,.46);
  --line:   rgba(217,208,190,.18);
  --line-2: rgba(217,208,190,.11);
  --well:   rgba(255,255,255,.04);
  background: var(--ink);
  color: var(--cream);
}
/* a moss ground — the solid brand field */
.moss-f{
  --bg:     var(--moss);
  --tx:     #f2eee2;
  --tx-2:   rgba(242,238,226,.76);
  --tx-3:   rgba(242,238,226,.5);
  --line:   rgba(242,238,226,.24);
  --line-2: rgba(242,238,226,.14);
  --well:   rgba(255,255,255,.07);
  background: var(--moss);
  color: var(--tx);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
html.locked{ overflow:hidden; }

body{
  margin:0;
  background:var(--paper);
  color:var(--soot);
  font-family:var(--f-round);
  font-weight:400;
  font-size:clamp(15px,1.02vw,16.5px);
  line-height:1.8;
  letter-spacing:.02em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{ overflow:hidden; }

img,video,canvas{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
::selection{ background:rgba(169,90,64,.22); color:var(--soot); }
.ink ::selection{ background:rgba(217,208,190,.28); color:#fff; }

/* ---------- scrollbar ---------- */
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:var(--paper-2); }
::-webkit-scrollbar-thumb{ background:var(--moss-l); border-radius:10px; }
::-webkit-scrollbar-thumb:hover{ background:var(--moss); }

/* ==========================================================================
   TYPE — A-08: Bold headline / Medium subhead / Regular body
   ========================================================================== */
h1,h2,h3,h4{ margin:0; font-weight:500; line-height:1.16; letter-spacing:.005em; }
.display{
  font-size:clamp(2.6rem,7.2vw,6.6rem);
  line-height:1.02;
  letter-spacing:-.012em;
  font-weight:500;
}
.display em{ font-style:normal; color:var(--moss); }
h2.section-title{
  font-size:clamp(1.85rem,3.9vw,3.4rem);
  line-height:1.18;
  letter-spacing:-.004em;
  font-weight:700;
}
h2.section-title .cjk,
h3 .cjk,
.display .cjk{ font-family:var(--f-cjk); letter-spacing:.02em; }
h3{
  font-size:clamp(1.32rem,2.1vw,1.95rem);
  line-height:1.3;
  font-weight:700;
}
h4{ font-size:1rem; letter-spacing:.03em; font-weight:700; }

p{ margin:0 0 1.15em; color:var(--tx-2); }
p.lead{
  font-size:clamp(1rem,1.3vw,1.2rem);
  line-height:1.85;
  color:var(--tx-2);
  max-width:60ch;
}
strong{ font-weight:700; color:var(--tx); }
em{ font-style:italic; }

.eyebrow{
  font-size:.7rem;
  font-weight:700;
  letter-spacing:.34em;
  text-transform:uppercase;
  color:var(--tea);
  display:flex; align-items:center; gap:.9em;
  margin:0 0 1.15rem;
}
.eyebrow::before{
  content:""; width:28px; height:2px; border-radius:2px;
  background:var(--tea);
}
.eyebrow.center{ justify-content:center; }
.eyebrow.center::after{
  content:""; width:28px; height:2px; border-radius:2px;
  background:var(--tea);
}
.eyebrow .zh{ letter-spacing:.2em; color:var(--tx-3); }

.tnum{ font-variant-numeric:tabular-nums; font-feature-settings:"tnum"; }
.gold{ color:var(--moss); }          /* legacy hook — now the moss headline tone */
.muted{ color:var(--tx-3); }
.hair{ height:1px; background:var(--line); border:0; margin:0; }

/* ==========================================================================
   LAYOUT
   ========================================================================== */
.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gut); }
section{ position:relative; }
.sec{ padding:clamp(84px,11vh,168px) 0; background:var(--bg); color:var(--tx); }
.sec-tight{ padding:clamp(60px,7vh,110px) 0; }
.sec-paper{ background:var(--paper-2); }

.grid{ display:grid; gap:clamp(22px,3vw,52px); }
.g2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.g3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.g4{ grid-template-columns:repeat(4,minmax(0,1fr)); }
.split{ display:grid; grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr); gap:clamp(30px,5vw,86px); align-items:center; }
.split.rev{ grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr); }

/* ==========================================================================
   PRELOADER — the VI cover: 凝脂 ground, 苔古 mark
   ========================================================================== */
#loader{
  position:fixed; inset:0; z-index:999;
  background:var(--paper);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:34px;
  transition:opacity .8s var(--ease), visibility .8s;
}
#loader.done{ opacity:0; visibility:hidden; }
.ld-coin{
  width:104px; height:104px; border-radius:50%;
  display:grid; place-items:center; position:relative;
  animation:coinIn 3.2s var(--ease) infinite;
}
.ld-coin img{ width:100%; }
.ld-coin::after{
  content:""; position:absolute; inset:-16px; border-radius:50%;
  border:1px solid rgba(100,104,83,.28);
  animation:ring 2.6s var(--ease) infinite;
}
@keyframes coinIn{ 0%,100%{transform:scale(1)} 50%{transform:scale(1.04)} }
@keyframes ring{ 0%{transform:scale(.92);opacity:.9} 100%{transform:scale(1.24);opacity:0} }
.ld-bar{ width:min(230px,52vw); height:2px; border-radius:2px; background:rgba(49,48,44,.14); overflow:hidden; }
.ld-bar i{ display:block; height:100%; width:0%; background:var(--moss); border-radius:2px; transition:width .5s var(--ease); }
.ld-txt{ font-size:.66rem; letter-spacing:.4em; text-transform:uppercase; color:var(--tx-3); }

/* ==========================================================================
   NAV — cream bar, flips to 反白 over the ink stages
   ========================================================================== */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:120;
  padding:16px 0;
  transition:background .5s var(--ease), backdrop-filter .5s, padding .5s var(--ease),
             border-color .5s, color .5s;
  border-bottom:1px solid transparent;
  color:var(--soot);
}
.nav.solid{
  background:rgba(236,231,219,.82);
  backdrop-filter:blur(22px) saturate(1.2);
  -webkit-backdrop-filter:blur(22px) saturate(1.2);
  border-bottom-color:rgba(49,48,44,.1);
  padding:10px 0;
}
body.in-ink .nav.solid{
  background:rgba(43,42,38,.80);
  border-bottom-color:rgba(217,208,190,.12);
}
/* the nav is position:fixed, so it sits OUTSIDE every ink container and would
   otherwise keep the paper-ground tokens — links and lang chips would render
   dark grey on the dark bar. Re-declare the ink tokens on the nav itself. */
body.in-ink .nav{
  --tx:var(--cream);        --tx-2:rgba(217,208,190,.74); --tx-3:rgba(217,208,190,.46);
  --line:rgba(217,208,190,.18); --line-2:rgba(217,208,190,.11);
  --well:rgba(255,255,255,.04);
  color:var(--cream);
}
.nav-in{ display:flex; align-items:center; gap:clamp(14px,2.4vw,40px); }

.brand{ display:flex; align-items:center; flex:0 0 auto; }
/* the lockup's box is 285x68 units (it has to clear the crown of the seal),
   so 34px here yields the same optical size the 30px/60-unit box used to */
.brand img{ display:block; height:34px; width:auto; }
.brand .lk-w{ display:none; }
body.in-ink .brand .lk-c{ display:none; }
body.in-ink .brand .lk-w{ display:block; }
body:not(.in-ink) .brand .lk-c{ display:block; }

.nav-links{ display:flex; gap:clamp(12px,1.7vw,30px); margin-left:auto; }
.nav-links a{
  position:relative; font-size:.76rem; letter-spacing:.13em; text-transform:uppercase;
  font-weight:500; color:var(--tx-2); padding:6px 0; white-space:nowrap;
  transition:color .35s var(--ease);
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; height:2px; width:0; border-radius:2px;
  background:var(--tea); transition:width .45s var(--ease);
}
.nav-links a:hover,.nav-links a.on{ color:var(--tx); }
.nav-links a:hover::after,.nav-links a.on::after{ width:100%; }
.nav-right{ display:flex; align-items:center; gap:14px; flex:0 0 auto; }

.lang{ display:flex; border:1px solid var(--line); border-radius:100px; overflow:hidden; }
.lang button{
  padding:6px 12px; font-size:.66rem; letter-spacing:.08em; font-weight:500;
  color:var(--tx-3); transition:.3s var(--ease); white-space:nowrap;
}
.lang button:hover{ color:var(--tx); }
.lang button.on{ background:var(--moss); color:#f4f1e8; }

.btn{
  display:inline-flex; align-items:center; gap:.7em;
  padding:13px 26px; border-radius:100px;
  font-size:.755rem; letter-spacing:.13em; text-transform:uppercase; font-weight:700;
  border:1.5px solid rgba(100,104,83,.55); color:var(--moss);
  position:relative; overflow:hidden;
  transition:color .4s var(--ease), border-color .4s var(--ease), transform .4s var(--ease);
}
.btn::before{
  content:""; position:absolute; inset:0; background:var(--moss);
  transform:translateY(101%); transition:transform .52s var(--ease); z-index:-1;
}
.btn>*{ position:relative; z-index:1; }
.btn:hover{ color:#f6f4ec; border-color:var(--moss); }
.btn:hover::before{ transform:translateY(0); }
.btn.solid{ background:var(--moss); border-color:var(--moss); color:#f6f4ec; }
.btn.solid::before{ background:var(--tea); }
.btn.solid:hover{ color:#fff; border-color:var(--tea); }
.btn.ghost{ border-color:var(--line); color:var(--tx); }
.btn.ghost::before{ background:var(--tea); }
.btn.sm{ padding:10px 20px; font-size:.69rem; }
.ink .btn.ghost{ border-color:rgba(217,208,190,.32); color:var(--cream); }
.ink .btn{ border-color:rgba(217,208,190,.34); color:var(--cream); }
.ink .btn.solid{ background:var(--cream); border-color:var(--cream); color:var(--soot); }
.ink .btn.solid::before{ background:#fff; }
.ink .btn.solid:hover{ color:var(--soot); }

.burger{ display:none; width:42px; height:42px; place-items:center; border:1px solid var(--line); border-radius:50%; }
.burger i{ display:block; width:16px; height:1.5px; background:currentColor; position:relative; transition:.35s; border-radius:2px; }
.burger i::before,.burger i::after{ content:""; position:absolute; left:0; width:16px; height:1.5px; background:currentColor; transition:.35s; border-radius:2px; }
.burger i::before{ top:-5px; } .burger i::after{ top:5px; }
.burger.x i{ background:transparent; }
.burger.x i::before{ transform:rotate(45deg); top:0; }
.burger.x i::after{ transform:rotate(-45deg); top:0; }

.drawer{
  position:fixed; inset:0; z-index:118;
  background:var(--ink); color:var(--cream);
  backdrop-filter:blur(16px); display:flex; flex-direction:column; justify-content:center;
  padding:0 var(--gut); gap:6px;
  clip-path:inset(0 0 100% 0); transition:clip-path .7s var(--ease);
}
.drawer.open{ clip-path:inset(0 0 0 0); }
.drawer a{
  font-size:clamp(1.5rem,5.6vw,2.2rem); font-weight:700;
  padding:14px 0; border-bottom:1px solid rgba(217,208,190,.12);
  display:flex; justify-content:space-between; align-items:baseline;
}
.drawer a span{ font-size:.68rem; letter-spacing:.28em; color:var(--tea-l); font-weight:500; }

/* ==========================================================================
   HERO — 凝脂 ground, the estate video washed back to paper
   ========================================================================== */
.hero{
  position:relative; min-height:100svh; display:flex; align-items:flex-end;
  padding-bottom:clamp(48px,9vh,110px); padding-top:130px; overflow:hidden;
  background:var(--paper); color:var(--soot);
}
.hero-bg{ position:absolute; inset:0; z-index:0; }
.hero-bg video,.hero-bg img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:.26; transform:scale(1.05);
  filter:grayscale(.3) sepia(.24) contrast(.9) brightness(1.14);
}
.hero-bg::after{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(120% 92% at 50% 4%, rgba(236,231,219,.14) 0%, rgba(236,231,219,.82) 62%, var(--paper) 100%),
    linear-gradient(180deg, rgba(236,231,219,.86) 0%, rgba(236,231,219,.42) 30%,
                    rgba(236,231,219,.72) 76%, var(--paper) 100%);
}
.hero-canvas{ position:absolute; inset:0; z-index:1; pointer-events:none; }
.hero-canvas canvas{ width:100%!important; height:100%!important; }
.hero-in{ position:relative; z-index:2; width:100%; }
.hero h1{ margin-bottom:.4em; }
.hero h1 .l1{ display:block; }
.hero .sub{ max-width:min(44ch,33rem); margin-bottom:2em; color:var(--tx-2); }
.hero-meta{
  display:flex; flex-wrap:wrap; gap:clamp(20px,4vw,64px);
  padding-top:26px; border-top:1px solid var(--line);
}
.hero-meta div{ min-width:0; }
.hero-meta b{ display:block; font-size:1.5rem; font-weight:700; color:var(--moss); }
.hero-meta span{ font-size:.66rem; letter-spacing:.22em; text-transform:uppercase; color:var(--tx-3); }
.scroll-cue{
  position:absolute; bottom:26px; left:50%; transform:translateX(-50%);
  z-index:3; display:flex; flex-direction:column; align-items:center; gap:9px;
  font-size:.6rem; letter-spacing:.32em; text-transform:uppercase; color:var(--tx-3);
}
.scroll-cue i{ width:2px; border-radius:2px; height:44px; background:linear-gradient(180deg,var(--moss),rgba(100,104,83,0)); animation:cue 2.4s var(--ease) infinite; }
@keyframes cue{ 0%{transform:scaleY(.15); transform-origin:top} 45%{transform:scaleY(1); transform-origin:top} 100%{transform:scaleY(.15); transform-origin:bottom} }

/* ==========================================================================
   MARQUEE
   ========================================================================== */
.marquee{ border-block:1px solid var(--line-2); padding:20px 0; overflow:hidden; background:var(--paper-2); }
.marquee-t{ display:flex; gap:56px; width:max-content; animation:slide 42s linear infinite; }
.marquee-t span{
  font-size:clamp(.95rem,1.5vw,1.3rem); letter-spacing:.14em; font-weight:500;
  color:var(--tx-3); display:flex; align-items:center; gap:56px; white-space:nowrap;
}
.marquee-t span::after{ content:"◆"; font-size:.46rem; color:var(--tea); }
@keyframes slide{ to{ transform:translateX(-50%); } }

/* ==========================================================================
   REVEAL
   ========================================================================== */
.rv{ opacity:0; transform:translateY(34px); transition:opacity .72s var(--ease), transform .8s var(--ease); }
.rv.in{ opacity:1; transform:none; }
.rv.d1{ transition-delay:.06s } .rv.d2{ transition-delay:.12s }
.rv.d3{ transition-delay:.18s } .rv.d4{ transition-delay:.24s } .rv.d5{ transition-delay:.3s }
.rv.d6{ transition-delay:.36s }
@media (prefers-reduced-motion:reduce){
  .rv{ opacity:1!important; transform:none!important; }
  .marquee-t{ animation:none; }
  html{ scroll-behavior:auto; }
}

/* ==========================================================================
   MEDIA FRAMES
   ========================================================================== */
.ph{
  position:relative; overflow:hidden; background:var(--paper-3);
  border-radius:6px;
  /* A ratio box with a definite height reports that height x ratio back as its
     MIN-CONTENT width, and a grid column defaults to minmax(auto,1fr) -- so the
     column is forced open to match and the whole page overflows sideways.  The
     grove video carried an inline min-height:320px, which at 16/9 asks for
     568.9px inside a 350px column and pushed the document to 589px wide on a
     390px phone.  Capping the box and cancelling its automatic minimum lets the
     column win, exactly as it should. */
  max-width:100%; min-width:0;
}
.ph img,.ph video{ width:100%; height:100%; object-fit:cover; transition:transform 1.4s var(--ease); }
.ph.r169{ aspect-ratio:16/9 } .ph.r43{ aspect-ratio:4/3 }
.ph.r11{ aspect-ratio:1/1 }   .ph.r34{ aspect-ratio:3/4 }
.ph.r219{ aspect-ratio:21/9 }
.ph:hover img{ transform:scale(1.045); }
.ph .cap{
  position:absolute; left:0; right:0; bottom:0; padding:22px;
  background:linear-gradient(0deg,rgba(43,42,38,.78),transparent);
  font-size:.68rem; letter-spacing:.18em; text-transform:uppercase; color:var(--cream);
}
.ph .tag{
  position:absolute; top:16px; left:16px; z-index:2;
  padding:6px 13px; border:1px solid rgba(217,208,190,.36); border-radius:100px;
  background:rgba(43,42,38,.5); backdrop-filter:blur(10px);
  font-size:.6rem; letter-spacing:.18em; text-transform:uppercase; color:var(--cream);
}
.pgrid{ display:grid; gap:clamp(10px,1.2vw,18px); }
.pgrid.c2{ grid-template-columns:repeat(2,1fr); }
.pgrid.c3{ grid-template-columns:repeat(3,1fr); }
.pgrid.c4{ grid-template-columns:repeat(4,1fr); }
.pgrid .ph.tall{ grid-row:span 2; }
/* the VI brand plate is artwork, not a photograph — never crop or zoom it */
.ph.plate{ background:var(--cream); }
.ph.plate img{ object-fit:contain; }
.ph.plate:hover img{ transform:none; }

/* ==========================================================================
   COLLECTIONS — 3D SHOWCASE (烏黑 stage, 反白 type)
   ========================================================================== */
.showcase{ position:relative; background:var(--ink); color:var(--cream); }
.showcase .eyebrow{ color:var(--tea-l); }
.showcase .eyebrow::before{ background:var(--tea-l); }
.sc-pin{ position:relative; height:520vh; }
.sc-sticky{
  position:sticky; top:0; height:100svh; overflow:hidden;
  display:grid; grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  align-items:center;
  background:var(--ink);
}
.sc-canvas{ position:absolute; inset:0; z-index:1; }
.sc-canvas canvas{ width:100%!important; height:100%!important; }
.sc-hud{ position:relative; z-index:3; padding:0 var(--gut); max-width:min(560px,44vw); }
.sc-hud .idx{
  font-size:.7rem; letter-spacing:.2em; color:var(--tea-l); font-weight:500;
  margin-bottom:1.6rem; display:flex; align-items:center; gap:14px;
}
.sc-hud .idx i{ display:block; width:44px; height:2px; border-radius:2px; background:var(--tea-l); }
.sc-panels{ position:relative; min-height:min(430px,52vh); }
.sc-panel{
  position:absolute; inset:0; opacity:0; transform:translateY(22px);
  transition:opacity .45s var(--ease), transform .55s var(--ease);
  pointer-events:none;
}
.sc-panel.on{ opacity:1; transform:none; pointer-events:auto; }
.sc-panel h3{ margin-bottom:1.1rem; color:var(--cream); }
.sc-panel .zh-name{
  font-family:var(--f-cjk); font-size:.88rem; letter-spacing:.3em; color:var(--cream);
  opacity:.62; margin-bottom:1rem; display:block;
}
.sc-panel p{ font-size:.96rem; max-width:46ch; color:var(--tx-2); }
.sc-specs{ list-style:none; margin:1.7rem 0 0; padding:0; display:grid; gap:1px; }
.sc-specs li{
  display:flex; justify-content:space-between; gap:20px; align-items:baseline;
  padding:11px 0; border-top:1px solid var(--line-2);
  font-size:.78rem; letter-spacing:.04em;
}
.sc-specs li b{ font-weight:500; color:var(--tx-3); text-transform:uppercase; letter-spacing:.14em; font-size:.67rem; }
.sc-specs li span{ color:var(--cream); text-align:right; font-variant-numeric:tabular-nums; font-size:.8rem; font-weight:500; }
.sc-rail{
  position:absolute; right:var(--gut); top:50%; transform:translateY(-50%); z-index:4;
  display:flex; flex-direction:column; gap:15px;
}
.sc-rail b{ width:7px; height:7px; border-radius:50%; background:rgba(217,208,190,.22); transition:.4s var(--ease); }
.sc-rail b.on{ background:var(--tea-l); box-shadow:0 0 0 4px rgba(192,125,97,.2); transform:scale(1.2); }
.sc-hint{
  position:absolute; left:var(--gut); bottom:34px; z-index:4;
  font-size:.62rem; letter-spacing:.26em; text-transform:uppercase; color:var(--tx-3);
}

/* ==========================================================================
   PRODUCT CARDS
   ========================================================================== */
.cards{ display:grid; gap:clamp(14px,1.6vw,24px); }
.card{
  position:relative; border:1px solid var(--line-2); border-radius:8px;
  padding:26px 24px 24px; background:var(--well);
  transition:border-color .5s var(--ease), transform .5s var(--ease), background .5s var(--ease);
  overflow:hidden;
}
.card::after{
  content:""; position:absolute; left:0; top:0; height:3px; width:0; border-radius:0 3px 3px 0;
  background:var(--tea); transition:width .7s var(--ease);
}
.card:hover{ border-color:rgba(100,104,83,.4); transform:translateY(-5px); }
.card:hover::after{ width:100%; }
.card .n{ font-size:.68rem; color:var(--moss); letter-spacing:.18em; font-weight:700; display:block; margin-bottom:14px; }
.card h4{ margin-bottom:.6rem; color:var(--tx); }
.card p{ font-size:.875rem; margin:0; color:var(--tx-2); }
.card .zh{ font-family:var(--f-cjk); font-size:.74rem; letter-spacing:.2em; color:var(--tx-3); display:block; margin:.6rem 0 0; }

/* ==========================================================================
   SHENGJI — 3D AERIAL (烏黑 stage)
   ========================================================================== */
#shengji{ background:var(--ink); color:var(--cream); }
#shengji .eyebrow{ color:var(--tea-l); }
#shengji .eyebrow::before{ background:var(--tea-l); }
.sj-pin{ position:relative; height:440vh; }
.sj-sticky{ position:sticky; top:0; height:100svh; overflow:hidden; background:var(--ink); }
.sj-canvas{ position:absolute; inset:0; z-index:1; }
.sj-canvas canvas{ width:100%!important; height:100%!important; }
.sj-veil{
  position:absolute; inset:0; z-index:2; pointer-events:none;
  background:
    linear-gradient(90deg, rgba(43,42,38,.94) 0%, rgba(43,42,38,.62) 25%, rgba(43,42,38,0) 48%),
    radial-gradient(95% 75% at 55% 50%, transparent 38%, rgba(43,42,38,.72) 100%);
}
.sj-copy{ position:absolute; inset:0; z-index:3; display:flex; align-items:center; padding:0 var(--gut); pointer-events:none; }
.sj-copy-in{ width:min(520px,42vw); position:relative; min-height:min(430px,54vh); }
.sj-step{
  position:absolute; inset:0; opacity:0; transform:translateY(24px);
  transition:opacity .8s var(--ease), transform 1s var(--ease);
}
.sj-step.on{ opacity:1; transform:none; }
.sj-step h3{ margin-bottom:1rem; color:var(--cream); }
.sj-step .zh-name{ font-family:var(--f-cjk); font-size:.86rem; letter-spacing:.3em; color:var(--cream); opacity:.6; display:block; margin-bottom:1rem; }
.sj-step p{ font-size:.95rem; max-width:44ch; color:var(--tx-2); }
.sj-hud{
  position:absolute; left:var(--gut); bottom:32px; z-index:5;
  display:flex; flex-direction:column; gap:8px;
}
.sj-hud .alt{ font-size:.68rem; letter-spacing:.14em; color:var(--tx-3); }
.sj-hud .alt b{ color:var(--cream); font-weight:500; }
.sj-steps{ position:absolute; right:var(--gut); bottom:32px; z-index:5; display:flex; gap:9px; }
.sj-steps b{ width:22px; height:3px; border-radius:3px; background:rgba(217,208,190,.2); transition:.45s var(--ease); }
.sj-steps b.on{ background:var(--tea-l); width:40px; }

/* ==========================================================================
   TREE / 5-YEAR — 凝脂 stage: the growth story drawn on paper
   ========================================================================== */
#tree{ background:var(--paper); color:var(--soot); }
.tree-pin{ position:relative; height:400vh; }
.tree-sticky{ position:sticky; top:0; height:100svh; overflow:hidden; background:var(--paper); }
.tree-canvas{ position:absolute; inset:0; z-index:1; }
.tree-canvas canvas{ width:100%!important; height:100%!important; }
.tree-veil{
  position:absolute; inset:0; z-index:2; pointer-events:none;
  background:linear-gradient(90deg,
    rgba(236,231,219,.92) 0%, rgba(236,231,219,.66) 26%, rgba(236,231,219,.04) 50%,
    rgba(236,231,219,.34) 72%, rgba(236,231,219,.68) 100%);
}
.tree-copy{
  position:relative; z-index:3; height:100%;
  display:grid; grid-template-columns:minmax(0,1fr) minmax(0,.82fr) minmax(0,.9fr);
  align-items:center; gap:24px 34px; padding:0 var(--gut);
}
.tree-copy .c{ min-width:0; }
.tree-copy .l{ max-width:520px; }
.tree-year{
  font-size:clamp(2.4rem,6vw,5rem); line-height:1; font-weight:700;
  color:transparent; -webkit-text-stroke:1.5px rgba(100,104,83,.55);
  margin-bottom:.7rem; transition:opacity .5s;
}
.tree-bar{ display:flex; gap:6px; margin-top:2rem; }
.tree-bar i{ flex:1; height:3px; border-radius:3px; background:rgba(49,48,44,.13); }
.tree-bar i.on{ background:var(--moss); }
.tree-stages{ list-style:none; padding:0; margin:1.6rem 0 0; }
.tree-stages li{
  display:flex; gap:16px; padding:10px 0; border-top:1px solid var(--line-2);
  font-size:.83rem; color:var(--tx-3); transition:color .5s var(--ease);
}
.tree-stages li.on{ color:var(--tx); }
.tree-stages li.on b{ color:var(--tea); }
.tree-stages li b{ font-size:.72rem; font-weight:700; color:var(--tx-3); flex:0 0 46px; }

/* ==========================================================================
   TIERS — the featured plan on a solid 苔古 field
   ========================================================================== */
.tier{
  border:1px solid var(--line); border-radius:10px; padding:clamp(26px,2.6vw,40px);
  display:flex; flex-direction:column; gap:18px; position:relative; overflow:hidden;
  background:var(--well);
  transition:.55s var(--ease);
}
.tier:hover{ border-color:rgba(100,104,83,.42); transform:translateY(-6px); }
.tier.feat{ border-color:var(--moss); background:var(--moss); color:#f4f1e8;
  --tx:#f4f1e8; --tx-2:rgba(244,241,232,.78); --tx-3:rgba(244,241,232,.56);
  --line:rgba(244,241,232,.26); --line-2:rgba(244,241,232,.16); --well:rgba(255,255,255,.06); }
.tier.feat:hover{ border-color:var(--moss); }
.tier .badge{
  position:absolute; top:0; right:0; padding:8px 16px;
  background:var(--tea); color:#fdf8f2; font-size:.6rem; letter-spacing:.2em;
  text-transform:uppercase; font-weight:700;
  border-bottom-left-radius:10px;
}
.tier .g{ font-size:1.4rem; font-weight:500; color:var(--tx-3); letter-spacing:.06em; }
.tier h4{ font-family:var(--f-cjk); font-size:1.22rem; letter-spacing:.12em; font-weight:700; color:var(--tx); }
.tier .price{ font-size:clamp(2rem,3.2vw,2.8rem); line-height:1; font-weight:700; color:var(--tx); }
.tier .price small{ font-size:.66rem; letter-spacing:.2em; color:var(--tx-3); display:block; margin-top:8px; text-transform:uppercase; font-weight:500; }
.tier ul{ list-style:none; padding:0; margin:0; display:grid; gap:11px; }
.tier li{ display:flex; gap:11px; font-size:.855rem; color:var(--tx-2); line-height:1.6; }
.tier li::before{ content:""; flex:0 0 6px; width:6px; height:6px; margin-top:.6em; border-radius:50%; background:var(--tea); }
.tier.feat li::before{ background:var(--cream); }
.tier .foot{ margin-top:auto; padding-top:20px; border-top:1px solid var(--line-2); }

/* ==========================================================================
   RITUAL / PROCESS
   ========================================================================== */
.steps{ display:grid; gap:0; }
.step{ display:grid; grid-template-columns:76px minmax(0,1fr); gap:clamp(16px,3vw,44px); padding:clamp(24px,3vw,40px) 0; border-top:1px solid var(--line-2); }
.step:last-child{ border-bottom:1px solid var(--line-2); }
.step .no{ font-size:clamp(1.5rem,2.4vw,2.2rem); font-weight:700; color:rgba(169,90,64,.5); line-height:1; }
.step h4{ font-family:var(--f-cjk); font-size:1.02rem; letter-spacing:.14em; font-weight:700; margin-bottom:.5rem; color:var(--tx); }
.step p{ font-size:.88rem; margin:0; max-width:64ch; }

/* ==========================================================================
   CONTACT (烏黑)
   ========================================================================== */
#contact{ background:var(--ink); color:var(--cream); }
#contact .eyebrow{ color:var(--tea-l); }
#contact .eyebrow::before{ background:var(--tea-l); }
.contact-cards{ display:grid; gap:clamp(12px,1.4vw,20px); grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); }
.cc{
  border:1px solid var(--line-2); border-radius:8px; padding:24px 22px;
  display:flex; flex-direction:column; gap:8px; transition:.5s var(--ease);
  background:var(--well);
}
.cc:hover{ border-color:rgba(192,125,97,.45); background:rgba(192,125,97,.08); }
.cc b{ font-size:.62rem; letter-spacing:.24em; text-transform:uppercase; color:var(--tea-l); }
.cc span{ font-family:var(--f-cjk); font-size:1rem; letter-spacing:.06em; color:var(--cream); }
.cc a{ font-size:.82rem; color:var(--tx-2); word-break:break-all; }
.cc a:hover{ color:var(--cream); }

.form{ display:grid; gap:16px; }
.f2{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
label.fld{ display:flex; flex-direction:column; gap:9px; }
label.fld span{ font-size:.62rem; letter-spacing:.22em; text-transform:uppercase; color:var(--tx-3); }
input,select,textarea{
  width:100%; padding:14px 16px; background:var(--well);
  border:1px solid var(--line); border-radius:6px; color:var(--tx);
  font-family:var(--f-round); font-size:.9rem; transition:.4s var(--ease);
}
input::placeholder,textarea::placeholder{ color:var(--tx-3); }
input:focus,select:focus,textarea:focus{ outline:none; border-color:var(--tea-l); background:rgba(192,125,97,.09); }
textarea{ min-height:132px; resize:vertical; }
select option{ background:var(--ink); color:var(--cream); }
.note{ font-size:.74rem; color:var(--tx-3); line-height:1.65; }

/* ==========================================================================
   FOOTER — 反白稿 on 烏黑 (A-09)
   ========================================================================== */
footer{ background:var(--ink); color:var(--cream); border-top:1px solid rgba(217,208,190,.12); padding:clamp(56px,7vh,92px) 0 34px; }
.f-grid{ display:grid; grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr)); gap:clamp(24px,3vw,50px); }
.f-grid h5{ font-size:.62rem; letter-spacing:.24em; text-transform:uppercase; color:var(--tea-l); margin:0 0 18px; font-weight:700; }
.f-grid a,.f-grid p{ display:block; font-size:.83rem; color:rgba(217,208,190,.6); margin:0 0 11px; }
.f-grid a:hover{ color:var(--cream); }
.f-brand img{ height:38px; width:auto; margin-bottom:22px; }
.f-brand p{ max-width:34ch; font-size:.83rem; color:rgba(217,208,190,.56); }
.f-bot{
  margin-top:clamp(40px,5vw,64px); padding-top:24px; border-top:1px solid rgba(217,208,190,.12);
  display:flex; flex-wrap:wrap; gap:16px 30px; justify-content:space-between;
  font-size:.71rem; color:rgba(217,208,190,.42); letter-spacing:.05em;
}
.f-bot .disc{ max-width:74ch; line-height:1.75; }

/* ==========================================================================
   LIGHTBOX
   ========================================================================== */
.lb{
  position:fixed; inset:0; z-index:200; background:rgba(43,42,38,.97);
  backdrop-filter:blur(14px); display:grid; place-items:center; padding:clamp(16px,4vw,60px);
  opacity:0; visibility:hidden; transition:opacity .5s var(--ease), visibility .5s;
}
.lb.open{ opacity:1; visibility:visible; }
.lb img{ max-height:82svh; max-width:100%; object-fit:contain; border-radius:6px; }
.lb .x{ position:absolute; top:22px; right:24px; width:46px; height:46px; border:1px solid rgba(217,208,190,.32); border-radius:50%; display:grid; place-items:center; color:var(--cream); }
.lb .x:hover{ border-color:var(--tea-l); color:var(--tea-l); }
.lb .lcap{ position:absolute; bottom:26px; left:0; right:0; text-align:center; font-size:.72rem; letter-spacing:.2em; text-transform:uppercase; color:rgba(217,208,190,.6); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1080px){
  .nav-links{ display:none; }
  .burger{ display:grid; }
  .g4{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .f-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .sc-sticky{ grid-template-columns:1fr; }
  .sc-hud{ max-width:none; padding-top:16svh; align-self:start; }
  .sc-panels{ min-height:330px; }
  .sc-rail{ right:auto; left:var(--gut); top:auto; bottom:26px; transform:none; flex-direction:row; }
  .sc-hint{ display:none; }
  .sc-canvas::after{
    content:""; position:absolute; inset:0; pointer-events:none;
    background:linear-gradient(180deg,
      rgba(43,42,38,.95) 0%, rgba(43,42,38,.88) 40%, rgba(43,42,38,.3) 60%, rgba(43,42,38,.86) 100%);
  }
  .sj-copy-in{ max-width:none; }
  .tree-copy{ grid-template-columns:minmax(0,1fr) minmax(0,.7fr); }
  .tree-copy .c{ display:none; }
  .tree-veil{ background:linear-gradient(90deg, rgba(236,231,219,.95) 0%, rgba(236,231,219,.86) 44%, rgba(236,231,219,.24) 68%, rgba(236,231,219,.64) 100%); }
}
@media (max-width:760px){
  /* minmax(0,1fr), not 1fr: a bare 1fr means minmax(auto,1fr), whose auto
     minimum lets a wide child push the whole track -- and the page -- wider than
     the screen.  The base rules above all guard against this; the mobile
     override simply forgot to. */
  .g3,.g2,.g4,.split,.split.rev{ grid-template-columns:minmax(0,1fr); }
  .pgrid.c4{ grid-template-columns:repeat(2,1fr); }
  .pgrid.c3{ grid-template-columns:repeat(2,1fr); }
  .hero{ align-items:center; padding-top:110px; }
  .hero-meta{ gap:18px 26px; }
  .hero-meta b{ font-size:1.2rem; }
  .f2{ grid-template-columns:1fr; }
  .f-grid{ grid-template-columns:1fr; }
  .step{ grid-template-columns:48px 1fr; }
  .sc-pin{ height:440vh; }
  .sj-pin{ height:380vh; }
  .tree-pin{ height:340vh; }
  .lang button{ padding:6px 9px; font-size:.6rem; }
  .brand img{ height:27px; }
  .tree-copy{ grid-template-columns:1fr; align-content:start; row-gap:24px; padding-top:16svh; }
  .tree-copy .r{ justify-self:start; max-width:100%; }
  .tree-veil{ background:linear-gradient(180deg, rgba(236,231,219,.97) 0%, rgba(236,231,219,.9) 46%, rgba(236,231,219,.42) 66%, rgba(236,231,219,.92) 100%); }
  .sj-copy-in{ min-height:0; }
  .sj-steps{ bottom:auto; top:104px; }
  .pgrid .ph.tall{ grid-row:auto; }
}