*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
 font-family:'Inter',-apple-system,sans-serif;
 background:#080604;
 color:#E8DCC8;
 line-height:1.7;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
:root{
 --bg:#080604;
 --surface:#14100C;
 --card:#1C1612;
 --card-hover:#241E18;
 --text:#E8DCC8;
 --text-muted:#A89880;
 --amber:#C4944A;
 --amber-deep:#8B5E3C;
 --amber-dark:#6B3A2A;
 --green-ink:#1A3A2A;
 --green-mid:#2D5A3D;
 --green-light:#4A7C59;
 --border:rgba(196,148,74,0.12);
 --glow-amber:rgba(196,148,74,0.06);
 --max-w:1200px;
}
h1,h2,h3,h4{font-family:'Cormorant Garamond',serif;font-weight:600;line-height:1.15}
h1{font-size:clamp(2.8rem,7vw,5.5rem);letter-spacing:0.02em}
h2{font-size:clamp(2rem,4.5vw,3.5rem);letter-spacing:0.01em}
h3{font-size:clamp(1.3rem,2.5vw,1.8rem)}
h4{font-size:1.1rem;font-weight:500}
.section-label{
 font-family:'Inter',sans-serif;
 font-size:0.7rem;
 font-weight:500;
 text-transform:uppercase;
 letter-spacing:0.25em;
 color:var(--amber);
 margin-bottom:1rem;
}
nav{
 position:fixed;top:0;left:0;right:0;
 z-index:1000;
 padding:0 2rem;
 height:56px;
 display:flex;align-items:center;justify-content:center;
 background:rgba(8,6,4,0.92);
 backdrop-filter:blur(20px);
 -webkit-backdrop-filter:blur(20px);
 border-bottom:1px solid var(--border);
 box-shadow:0 4px 30px rgba(0,0,0,0.4);
}

nav ul{
 display:flex;gap:0.25rem;
 list-style:none;
 flex-wrap:wrap;justify-content:center;
}
nav a{
 font-family:'Inter',sans-serif;font-size:0.72rem;
 font-weight:500;text-transform:uppercase;letter-spacing:0.12em;
 color:var(--text-muted);text-decoration:none;
 padding:0.4rem 0.8rem;border-radius:4px;
 transition:color .2s,background .2s;
 white-space:nowrap;
}
nav a:hover{color:var(--amber);background:rgba(196,148,74,0.08)}
section{padding:6rem 1.5rem}
.section-inner{
 max-width:var(--max-w);margin:0 auto;
}
.hero{
 min-height:60vh;
 display:flex;align-items:center;justify-content:center;
 position:relative;
 overflow:hidden;
 padding:4rem 1.5rem 2rem;
}
.hero-bg{
 position:absolute;inset:0;
 background:var(--bg);
 z-index:0;
}
.hero-bg img{
 width:100%;height:100%;
 object-fit:cover;
 opacity:0.35;
 mix-blend-mode:luminosity;
}
.hero-top-deco{
 position:absolute;top:0;left:0;right:0;
 z-index:1;
 display:flex;justify-content:space-between;
 pointer-events:none;
 opacity:0.15;
}
.hero-top-deco img{height:clamp(60px,10vw,120px);object-fit:contain}
.hero-overlay{
 position:absolute;inset:0;
 background:radial-gradient(ellipse at center, transparent 40%, var(--bg) 85%),
       linear-gradient(180deg, transparent 50%, var(--bg) 100%);
 z-index:2;
}
.hero-content{
 position:relative;z-index:2;
 text-align:center;
 max-width:800px;
}
.hero-badge{
 display:inline-block;
 font-size:0.7rem;font-weight:500;text-transform:uppercase;letter-spacing:0.3em;
 color:var(--amber);
 border:1px solid rgba(196,148,74,0.25);
 padding:0.4rem 1.2rem;border-radius:100px;
 margin-bottom:2rem;
}
.hero h1{margin-bottom:0.5rem}
.hero .sub{
 font-family:'Cormorant Garamond',serif;
 font-size:clamp(1.2rem,2.5vw,1.8rem);
 font-weight:400;font-style:italic;
 color:var(--text-muted);
 margin-bottom:1rem;
}
.hero .sub-cn{
 font-size:0.9rem;color:rgba(168,152,128,0.6);
 margin-bottom:2.5rem;
}
.hero-scroll{
 display:inline-flex;align-items:center;gap:0.5rem;
 color:var(--text-muted);font-size:0.75rem;text-transform:uppercase;letter-spacing:0.15em;
 text-decoration:none;
 animation:float 2s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}
.intro{background:var(--surface)}
.intro-grid{
 display:grid;
 grid-template-columns:1fr 1fr;
 gap:3rem;align-items:center;
}
.intro-img{
 width:100%;border-radius:8px;
 box-shadow:0 20px 60px rgba(0,0,0,0.5);
 transition:transform .4s,box-shadow .4s;
 background:var(--card);
}
.intro-img:hover{transform:scale(1.01);box-shadow:0 24px 80px rgba(0,0,0,0.6)}
.intro-text h2{margin-bottom:1rem}
.intro-text p{color:var(--text-muted);font-size:0.95rem;margin-bottom:1.5rem}
.labels{display:grid;gap:0.75rem}
.label-item{
 display:flex;align-items:flex-start;gap:0.75rem;
 padding:0.75rem 1rem;
 background:rgba(255,255,255,0.03);
 border-radius:6px;
 border-left:2px solid var(--amber);
}
.label-item .en{font-size:0.85rem;color:var(--text)}
.label-item .cn{font-size:0.75rem;color:var(--text-muted);margin-top:0.15rem}
.timeline-intro{text-align:center;margin-bottom:3rem}
.timeline-grid{
 display:grid;
 grid-template-columns:1fr 1fr;
 gap:3rem;align-items:center;
}
.timeline-stages{
 display:grid;
 grid-template-columns:1fr 1fr;
 gap:1rem;
}
.tl-stage{
 background:var(--card);
 border:1px solid var(--border);
 border-radius:8px;
 padding:1.25rem;
 transition:background .3s,border-color .3s;
}
.tl-stage:hover{background:var(--card-hover);border-color:rgba(196,148,74,0.3)}
.tl-stage .num{
 font-family:'Cormorant Garamond',serif;
 font-size:1.6rem;font-weight:700;color:var(--amber);
 line-height:1;
 margin-bottom:0.35rem;
}
.tl-stage .name{
 font-size:0.85rem;font-weight:500;color:var(--text);
 margin-bottom:0.3rem;
}
.tl-stage .days{
 font-size:0.7rem;color:var(--amber-deep);text-transform:uppercase;letter-spacing:0.08em;
 margin-bottom:0.4rem;
}
.tl-stage .desc{
 font-size:0.78rem;color:var(--text-muted);
 line-height:1.5;
}
.stages-gallery{
 background:
  radial-gradient(ellipse 60% 40% at 30% 20%, rgba(196,148,74,0.03) 0%, transparent 70%),
  radial-gradient(ellipse 50% 50% at 70% 80%, rgba(26,58,42,0.08) 0%, transparent 70%),
  var(--bg);
}
.stages-intro{text-align:center;margin-bottom:3.5rem}
.stages-intro h2{color:var(--amber)}

.stage-card{
 background:var(--surface);
 border:1px solid var(--border);
 border-radius:12px;
 overflow:hidden;
 transition:transform .4s,border-color .3s,box-shadow .4s;
}
.stage-card:hover{
 transform:translateY(-4px);
 border-color:rgba(196,148,74,0.25);
 box-shadow:0 20px 60px rgba(0,0,0,0.4);
}
.stage-card .img-wrap{
 position:relative;
 overflow:hidden;
 aspect-ratio:16/10;
 background:var(--card);
}
.stage-card .img-wrap img{
 width:100%;height:100%;
 object-fit:cover;
 transition:transform .5s;
}
.stage-card:hover .img-wrap img{transform:scale(1.04)}
.stage-card .stage-badge{
 position:absolute;top:1rem;left:1rem;
 font-size:0.65rem;font-weight:500;text-transform:uppercase;letter-spacing:0.1em;
 color:var(--amber);
 background:rgba(8,6,4,0.8);
 backdrop-filter:blur(8px);
 padding:0.3rem 0.8rem;border-radius:100px;
 border:1px solid rgba(196,148,74,0.2);
}
.stage-card .body{padding:1.5rem}
.stage-card .body h3{font-size:1.15rem;margin-bottom:0.4rem}
.stage-card .body .days{font-size:0.7rem;color:var(--amber-deep);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:0.6rem}
.stage-card .body p{font-size:0.85rem;color:var(--text-muted)}
.stage-packs{display:flex;flex-direction:column;gap:3rem}
.stage-pack{
 background:var(--surface);
 border:1px solid var(--border);
 border-radius:12px;
 overflow:hidden;
 transition:border-color .3s,box-shadow .3s;
}
.stage-pack:hover{border-color:rgba(196,148,74,0.25);box-shadow:0 12px 48px rgba(0,0,0,0.35)}
.stage-pack-header{
 display:flex;align-items:center;gap:0.75rem;
 padding:1.5rem 1.5rem 0;
 flex-wrap:wrap;
}
.stage-pack-header .badge{
 font-size:0.65rem;font-weight:500;text-transform:uppercase;letter-spacing:0.1em;
 color:var(--amber);
 background:rgba(196,148,74,0.1);
 padding:0.3rem 0.8rem;border-radius:100px;
 border:1px solid rgba(196,148,74,0.2);
}
.stage-pack-header h3{font-size:1.15rem}
.stage-pack-header .days{
 font-size:0.7rem;color:var(--amber-deep);text-transform:uppercase;letter-spacing:0.08em;
 margin-left:auto;
}
.stage-pack-images{
 display:grid;
 grid-template-columns:1fr 1fr;
 gap:1rem;
 padding:1rem 1.5rem;
}
.stage-pack-images figure{
 margin:0;border-radius:8px;overflow:hidden;
 background:var(--card);
 position:relative;
}
.stage-pack-images figure img{
 width:100%;display:block;
 aspect-ratio:16/10;object-fit:cover;
 transition:transform .5s;
}
.stage-pack:hover .stage-pack-images figure img{transform:scale(1.04)}
.stage-pack-images figcaption{
 position:absolute;bottom:0;left:0;right:0;
 font-size:0.6rem;text-transform:uppercase;letter-spacing:0.08em;
 background:rgba(8,6,4,0.78);
 backdrop-filter:blur(6px);
 padding:0.35rem 0.7rem;
 text-align:center;
}
.stage-pack-images .stage-main-caption{color:var(--amber)}
.stage-pack-images .stage-supp-caption{color:var(--green-light)}
.stage-pack .body{padding:0 1.5rem 1.5rem}
.stage-pack .body p{font-size:0.85rem;color:var(--text-muted)}
.stage-pack.featured{
 border-color:rgba(196,148,74,0.2);
 background:linear-gradient(135deg, var(--surface) 0%, rgba(26,58,42,0.12) 100%);
}
.anatomy-intro{text-align:center;margin-bottom:3rem}
.anatomy-content{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.anatomy-img{
 width:100%;border-radius:12px;
 box-shadow:0 20px 60px rgba(0,0,0,0.4);
}
.anatomy-layers{display:grid;gap:0.75rem}
.layer-item{
 display:flex;align-items:flex-start;gap:1rem;
 padding:1rem 1.25rem;
 background:rgba(255,255,255,0.02);
 border-radius:8px;
 border-left:3px solid transparent;
 transition:background .3s;
}
.layer-item:hover{background:rgba(255,255,255,0.04)}
.layer-item:nth-child(1){border-color:#C4944A}
.layer-item:nth-child(2){border-color:#2D5A3D}
.layer-item:nth-child(3){border-color:#6B8A5A}
.layer-item:nth-child(4){border-color:#8B5E3C}
.layer-item .num{
 font-family:'Cormorant Garamond',serif;
 font-size:1.4rem;font-weight:700;color:var(--amber);
 line-height:1;min-width:1.5rem;
}
.layer-item .en{font-size:0.85rem;color:var(--text);font-weight:500}
.layer-item .cn{font-size:0.75rem;color:var(--text-muted);margin-top:0.1rem}
.matrix{background:var(--surface)}
.matrix-intro{text-align:center;margin-bottom:3rem}
.matrix-img-wrap{
 max-width:1000px;margin:0 auto;
 border-radius:12px;overflow:hidden;
 box-shadow:0 20px 60px rgba(0,0,0,0.4);
 background:var(--card);
}
.matrix-img-wrap img{width:100%;display:block}
.conclusion{
 text-align:center;
 position:relative;
 background:
  radial-gradient(ellipse 50% 30% at 50% 80%, rgba(196,148,74,0.04) 0%, transparent 70%),
  radial-gradient(ellipse 40% 40% at 50% 20%, rgba(26,58,42,0.06) 0%, transparent 60%),
  var(--bg);
}
.conclusion-inner{max-width:800px;margin:0 auto}
.conclusion-img{
 max-width:100%;border-radius:12px;
 box-shadow:0 20px 60px rgba(0,0,0,0.5);
 margin-bottom:3rem;
}
.conclusion blockquote{
 font-family:'Cormorant Garamond',serif;
 font-size:clamp(1.1rem,2.5vw,1.6rem);
 font-style:italic;font-weight:400;
 color:var(--text-muted);
 line-height:1.6;
 max-width:700px;margin:0 auto;
}
footer{
 text-align:center;
 padding:3rem 1.5rem;
 border-top:1px solid var(--border);
 font-size:0.75rem;color:rgba(168,152,128,0.4);
 letter-spacing:0.05em;
}
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s,transform .8s}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:0.1s}
.reveal-delay-2{transition-delay:0.2s}
.reveal-delay-3{transition-delay:0.3s}
.reveal-delay-4{transition-delay:0.4s}
@media(max-width:900px){
 .intro-grid{grid-template-columns:1fr}
 .timeline-grid{grid-template-columns:1fr}
 .stage-pack-images{grid-template-columns:1fr}
 .anatomy-content{grid-template-columns:1fr}
 section{padding:4rem 1.25rem}
}
@media(max-width:640px){
 .timeline-stages{grid-template-columns:1fr}
 nav{height:48px;padding:0 0.75rem}
 nav a{font-size:0.65rem;padding:0.3rem 0.5rem}
 .hero{padding:3rem 1rem 1.5rem}
}