:root{
  --g1:#0f1f16;--g2:#1a3021;--g3:#2d5a3d;--g4:#3d7a52;
  --gold:#c8a060;--gold2:#e8d5a0;
  --cream:#f5f0e6;--cream2:#ede8dc;--white:#fdfcf8;
  --text:#2a2a2a;--muted:#6a6a6a;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Sans TC',sans-serif;background:var(--white);color:var(--text);overflow-x:hidden;}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;align-items:center;justify-content:space-between;padding:18px 5%;background:rgba(15,31,22,.97);backdrop-filter:blur(16px);border-bottom:1px solid rgba(200,160,96,.18);}
.logo-wrap{display:flex;flex-direction:column;gap:2px;}
.logo-main{font-family:'Noto Serif TC',serif;font-size:15px;font-weight:700;color:var(--gold2);letter-spacing:3px;}
.logo-sub{font-family:'Cormorant Garamond',serif;font-size:10px;letter-spacing:6px;color:rgba(200,160,96,.55);}
.nav-links{display:flex;align-items:center;gap:36px;list-style:none;}
.nav-links a{font-size:12.5px;letter-spacing:2px;color:rgba(245,240,230,.75);text-decoration:none;font-weight:300;transition:color .25s;}
.nav-links a:hover,.nav-links a.active{color:var(--gold);}
.nav-btn{border:1px solid var(--gold);color:var(--gold)!important;padding:8px 22px;font-size:11.5px!important;letter-spacing:2px;transition:all .25s!important;}
.nav-btn:hover{background:var(--gold)!important;color:var(--g2)!important;}

/* PAGE HERO */
.page-hero{
  padding:140px 7% 80px;
  background:var(--g2);
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1fr 1fr;
  gap:60px;align-items:center;
}
.page-hero::before{
  content:'MATERIALS';
  position:absolute;right:-20px;top:50%;transform:translateY(-50%);
  font-family:'Cormorant Garamond',serif;font-size:160px;font-weight:600;
  color:rgba(200,160,96,.06);white-space:nowrap;pointer-events:none;
}
.page-hero-left{}
.eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:24px;}
.eyebrow-line{width:36px;height:1px;background:var(--gold);}
.eyebrow span{font-family:'Cormorant Garamond',serif;font-size:11px;letter-spacing:6px;color:var(--gold);}
.page-title{font-family:'Noto Serif TC',serif;font-size:clamp(28px,3.5vw,48px);font-weight:700;color:#f0ece2;letter-spacing:3px;line-height:1.4;margin-bottom:20px;}
.page-desc{font-size:14px;line-height:2;color:rgba(240,235,220,.6);font-weight:300;max-width:460px;}

/* Breadcrumb */
.breadcrumb{display:flex;align-items:center;gap:10px;margin-bottom:24px;}
.breadcrumb span{font-size:11px;letter-spacing:2px;color:rgba(200,160,96,.5);font-family:'Cormorant Garamond',serif;}
.breadcrumb span.sep{color:rgba(200,160,96,.25);}
.breadcrumb span.current{color:var(--gold);}

/* Anchor nav */
.page-hero-right{}
.anchor-nav{display:flex;flex-direction:column;gap:2px;}
.anchor-item{
  display:flex;align-items:center;gap:16px;
  padding:16px 20px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(200,160,96,.1);
  text-decoration:none;
  transition:all .25s;
  cursor:pointer;
}
.anchor-item:hover{background:rgba(255,255,255,.08);border-color:rgba(200,160,96,.3);}
.anchor-num{font-family:'Cormorant Garamond',serif;font-size:13px;color:rgba(200,160,96,.4);width:24px;flex-shrink:0;}
.anchor-label{font-size:12.5px;letter-spacing:2px;color:rgba(240,235,220,.7);font-weight:300;}
.anchor-arrow{margin-left:auto;font-size:14px;color:rgba(200,160,96,.4);transition:transform .25s;}
.anchor-item:hover .anchor-arrow{transform:translateX(4px);color:var(--gold);}

/* SECTION COMMON */
.sec{padding:80px 7%;}
.sec-alt{background:var(--cream);}
.sec-dark{background:var(--g2);}
.sec-darker{background:var(--g1);}

.label-row{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.label-line{width:32px;height:1px;background:var(--gold);}
.label-text{font-family:'Cormorant Garamond',serif;font-size:11px;letter-spacing:6px;color:var(--gold);}
.sec-title{font-family:'Noto Serif TC',serif;font-size:clamp(22px,2.5vw,34px);font-weight:700;color:var(--g2);letter-spacing:3px;line-height:1.4;margin-bottom:12px;}
.sec-title-light{color:var(--cream);}
.sec-desc{font-size:13.5px;line-height:2;color:var(--muted);font-weight:300;max-width:580px;margin-bottom:48px;}
.sec-desc-light{color:rgba(240,235,220,.55);}

/* ── 01 COLOR SWATCHES ── */
.filter-tabs{display:flex;gap:8px;margin-bottom:32px;flex-wrap:wrap;}
.tab{
  font-size:11px;letter-spacing:2px;
  border:1px solid rgba(26,48,33,.2);
  color:var(--muted);padding:7px 20px;
  cursor:pointer;transition:all .25s;
  font-family:'Cormorant Garamond',serif;
}
.tab:hover,.tab.active{background:var(--g2);color:var(--gold2);border-color:var(--g2);}

.swatch-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:10px;}
.swatch{overflow:hidden;cursor:pointer;transition:transform .25s;border:1px solid transparent;}
.swatch:hover{transform:scale(1.06);z-index:1;border-color:var(--gold);}
.swatch-color{aspect-ratio:1;}
.swatch-info{padding:7px 9px;background:rgba(26,48,33,.05);}
.swatch-name{font-size:9.5px;letter-spacing:1px;color:var(--text);display:block;margin-bottom:1px;font-weight:400;}
.swatch-series{font-family:'Cormorant Garamond',serif;font-size:9px;color:var(--muted);}

.swatch-note{
  margin-top:20px;padding:14px 20px;
  background:var(--g2);
  display:flex;align-items:center;gap:12px;
}
.swatch-note span{font-size:12px;letter-spacing:1px;color:rgba(240,235,220,.6);font-weight:300;}
.swatch-note strong{color:var(--gold2);}

/* ── 02 DOOR PANELS ── */
.door-intro{
  display:grid;grid-template-columns:1fr 2fr;
  gap:48px;align-items:start;
  margin-bottom:48px;
}
.door-intro-left{
  padding:32px;
  background:var(--g2);
  border-left:3px solid var(--gold);
}
.door-intro-left p{font-size:13px;line-height:2;color:rgba(240,235,220,.65);font-weight:300;}
.door-intro-left strong{color:var(--gold2);display:block;font-family:'Noto Serif TC',serif;font-size:15px;letter-spacing:2px;margin-bottom:12px;}

.door-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.door-card{
  background:var(--white);
  border:1px solid rgba(26,48,33,.1);
  overflow:hidden;
  transition:all .3s;cursor:pointer;
}
.door-card:hover{box-shadow:0 12px 40px rgba(26,48,33,.12);transform:translateY(-4px);}
.door-card.featured{border-color:var(--gold);border-width:2px;}

.door-visual{
  height:180px;
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
  font-size:11px;letter-spacing:3px;color:rgba(200,160,96,.5);
  font-family:'Noto Sans TC',sans-serif;font-weight:300;
}
.dv1{background:linear-gradient(135deg,#3d5c48,#2a4035);}
.dv2{background:linear-gradient(135deg,#c8c0b0,#a8a098);}
.dv3{background:linear-gradient(135deg,#2a3528,#1e2a20);}
.dv4{background:linear-gradient(135deg,#8a8880,#6a6860);}
.dv5{background:linear-gradient(135deg,#5a7a80,#3a5860);}
.dv6{background:linear-gradient(135deg,#7a6858,#5a4838);}

/* Simulated door patterns */
.dv1::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(200,160,96,.15) 0,rgba(200,160,96,.15) 2px,transparent 2px,transparent 14px);}
.dv2::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.3),rgba(255,255,255,.1));backdrop-filter:blur(2px);}
.dv3::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(200,160,96,.08) 0,rgba(200,160,96,.08) 1px,transparent 1px,transparent 20px);}

.door-badge{
  position:absolute;top:12px;right:12px;
  font-size:9px;letter-spacing:2px;
  background:rgba(200,160,96,.9);
  color:var(--g2);padding:3px 10px;
  font-family:'Cormorant Garamond',serif;
}

.door-body{padding:20px 22px;}
.door-tag{font-size:9px;letter-spacing:3px;color:var(--gold);font-family:'Cormorant Garamond',serif;display:block;margin-bottom:8px;}
.door-name{font-family:'Noto Serif TC',serif;font-size:16px;font-weight:600;color:var(--g2);letter-spacing:2px;margin-bottom:8px;}
.door-desc{font-size:12px;line-height:1.9;color:var(--muted);font-weight:300;margin-bottom:14px;}
.door-styles{display:flex;flex-wrap:wrap;gap:6px;}
.door-style-tag{font-size:9.5px;letter-spacing:1px;color:var(--g3);border:1px solid rgba(45,90,61,.25);padding:3px 10px;}

/* ── 03 CRAFTSMANSHIP ── */
.craft-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.craft-card{
  padding:36px 32px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(200,160,96,.15);
  position:relative;overflow:hidden;
}
.craft-card.highlight{
  background:rgba(200,160,96,.08);
  border-color:rgba(200,160,96,.35);
}
.craft-card::after{
  content:'';position:absolute;left:0;top:0;bottom:0;
  width:3px;background:var(--gold);
}
.craft-num{font-family:'Cormorant Garamond',serif;font-size:11px;letter-spacing:4px;color:rgba(200,160,96,.4);margin-bottom:16px;}
.craft-icon{font-size:32px;margin-bottom:16px;}
.craft-title{font-family:'Noto Serif TC',serif;font-size:18px;font-weight:600;color:var(--gold2);letter-spacing:2px;margin-bottom:12px;}
.craft-desc{font-size:13px;line-height:2;color:rgba(240,235,220,.55);font-weight:300;margin-bottom:20px;}
.craft-tags{display:flex;flex-wrap:wrap;gap:8px;}
.craft-tag{font-size:10px;letter-spacing:2px;color:var(--gold);border:1px solid rgba(200,160,96,.25);padding:4px 12px;}

/* vs bar */
.vs-bar{
  display:flex;align-items:center;
  margin:20px 0;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(200,160,96,.1);
  overflow:hidden;
}
.vs-item{flex:1;padding:14px 20px;}
.vs-item.good{background:rgba(200,160,96,.08);}
.vs-label{font-size:10px;letter-spacing:2px;color:rgba(200,160,96,.5);margin-bottom:4px;font-family:'Cormorant Garamond',serif;}
.vs-val{font-size:13px;color:rgba(240,235,220,.8);font-weight:400;}
.vs-val.highlight{color:var(--gold2);font-weight:600;}
.vs-divider{width:1px;background:rgba(200,160,96,.15);align-self:stretch;}

/* ── 04 HARDWARE ── */
.hw-grid{display:grid;grid-template-columns:1fr 2fr;gap:40px;align-items:start;}
.hw-philosophy{
  padding:36px 28px;
  background:var(--cream);
  border-top:3px solid var(--g2);
}
.hw-philosophy strong{font-family:'Noto Serif TC',serif;font-size:17px;font-weight:600;color:var(--g2);letter-spacing:2px;display:block;margin-bottom:14px;}
.hw-philosophy p{font-size:13px;line-height:2;color:var(--muted);font-weight:300;}

.hw-brands{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.hw-brand{
  padding:20px 22px;
  background:var(--white);
  border:1px solid rgba(26,48,33,.1);
  display:flex;align-items:center;gap:16px;
  transition:all .25s;
}
.hw-brand:hover{border-color:var(--g3);box-shadow:0 4px 20px rgba(26,48,33,.08);}
.hw-brand-icon{
  width:48px;height:48px;
  background:var(--g2);
  border-radius:2px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;flex-shrink:0;
}
.hw-brand-name{font-family:'Noto Serif TC',serif;font-size:14px;font-weight:600;color:var(--g2);letter-spacing:1px;margin-bottom:4px;}
.hw-brand-desc{font-size:11px;color:var(--muted);font-weight:300;letter-spacing:.5px;}
.hw-brand-tag{display:inline-block;font-size:9px;letter-spacing:2px;border:1px solid rgba(45,90,61,.3);color:var(--g3);padding:2px 8px;margin-top:5px;font-family:'Cormorant Garamond',serif;}

.hw-note{
  margin-top:20px;padding:18px 22px;
  background:var(--g2);
  display:flex;align-items:flex-start;gap:14px;
}
.hw-note-icon{font-size:20px;flex-shrink:0;margin-top:2px;}
.hw-note p{font-size:12.5px;line-height:1.9;color:rgba(240,235,220,.65);font-weight:300;}
.hw-note strong{color:var(--gold2);}

/* ── 05 PARTNER BRANDS ── */
.partner-intro{
  display:grid;grid-template-columns:2fr 1fr;
  gap:40px;align-items:center;
  margin-bottom:48px;
}
.partner-desc{font-size:14px;line-height:2;color:var(--muted);font-weight:300;}

.partner-stat{
  text-align:center;
  padding:28px;
  background:var(--g2);
  border:1px solid rgba(200,160,96,.2);
}
.partner-stat-num{font-family:'Cormorant Garamond',serif;font-size:52px;font-weight:600;color:var(--gold);line-height:1;}
.partner-stat-unit{font-size:16px;color:var(--gold);}
.partner-stat-label{font-size:11px;letter-spacing:3px;color:rgba(240,235,220,.5);margin-top:6px;}

.partner-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:2px;}
.partner-card{
  background:var(--white);
  border:1px solid rgba(26,48,33,.08);
  padding:28px 20px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;
  transition:all .3s;cursor:default;
  min-height:120px;
}
.partner-card:hover{background:var(--cream);border-color:rgba(26,48,33,.2);}
.partner-logo{
  width:64px;height:32px;
  background:linear-gradient(135deg,rgba(26,48,33,.15),rgba(26,48,33,.05));
  border-radius:2px;
  display:flex;align-items:center;justify-content:center;
}
.partner-logo span{font-family:'Cormorant Garamond',serif;font-size:12px;letter-spacing:2px;color:var(--g3);font-weight:600;}
.partner-name{font-size:11px;letter-spacing:1px;color:var(--muted);font-weight:300;}
.partner-cert{font-size:9px;letter-spacing:2px;color:var(--gold);border:1px solid rgba(200,160,96,.3);padding:2px 8px;font-family:'Cormorant Garamond',serif;}

.partner-note{
  margin-top:16px;
  padding:16px 22px;
  background:var(--cream2);
  border-left:3px solid var(--g3);
  font-size:12.5px;line-height:1.9;
  color:var(--muted);font-weight:300;
}

/* ── 06 CERTS ── */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.cert-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(200,160,96,.15);
  padding:28px 22px;
  text-align:center;
  transition:all .3s;
}
.cert-card:hover{background:rgba(255,255,255,.08);transform:translateY(-3px);}
.cert-icon{font-size:36px;margin-bottom:16px;}
.cert-title{font-family:'Noto Serif TC',serif;font-size:14px;font-weight:600;color:var(--gold2);letter-spacing:2px;margin-bottom:8px;}
.cert-scope{font-size:11px;color:rgba(200,160,96,.5);letter-spacing:1px;margin-bottom:14px;font-family:'Cormorant Garamond',serif;}
.cert-desc{font-size:12px;line-height:1.9;color:rgba(240,235,220,.5);font-weight:300;margin-bottom:18px;}
.cert-btn{
  display:inline-block;
  background:transparent;
  border:1px solid rgba(200,160,96,.35);
  color:var(--gold);
  font-size:10px;letter-spacing:3px;
  padding:7px 20px;
  cursor:pointer;
  font-family:'Cormorant Garamond',serif;
  transition:all .25s;text-decoration:none;
}
.cert-btn:hover{background:var(--gold);color:var(--g2);}

/* CTA strip */
.cta-strip{
  background:var(--cream);
  padding:70px 7%;
  text-align:center;
}
.cta-strip h2{font-family:'Noto Serif TC',serif;font-size:clamp(22px,3vw,36px);font-weight:700;color:var(--g2);letter-spacing:4px;margin-bottom:16px;}
.cta-strip p{font-size:14px;color:var(--muted);line-height:2;font-weight:300;max-width:440px;margin:0 auto 36px;}
.cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
.btn-dark{background:var(--g2);color:var(--cream);padding:15px 44px;font-size:12.5px;letter-spacing:3px;font-weight:500;border:none;cursor:pointer;font-family:'Noto Sans TC',sans-serif;text-decoration:none;display:inline-block;transition:all .3s;}
.btn-dark:hover{background:var(--g3);transform:translateY(-2px);}
.btn-out{background:transparent;color:var(--g2);border:1.5px solid var(--g2);padding:15px 44px;font-size:12.5px;letter-spacing:3px;cursor:pointer;font-family:'Noto Sans TC',sans-serif;text-decoration:none;display:inline-block;transition:all .3s;}
.btn-out:hover{background:var(--g2);color:var(--cream);}

/* FOOTER */
footer{background:var(--g1);padding:50px 7% 32px;border-top:1px solid rgba(200,160,96,.1);}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:40px;}
.footer-logo{font-family:'Noto Serif TC',serif;font-size:18px;font-weight:700;color:var(--gold2);letter-spacing:5px;}
.footer-logo-sub{font-family:'Cormorant Garamond',serif;font-size:9.5px;letter-spacing:5px;color:rgba(200,160,96,.4);margin-top:3px;margin-bottom:16px;}
.footer-about{font-size:12px;line-height:1.9;color:rgba(240,235,220,.32);font-weight:300;max-width:240px;}
.footer-col h4{font-family:'Noto Serif TC',serif;font-size:12px;letter-spacing:3px;color:var(--gold);font-weight:600;margin-bottom:16px;}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:12px;letter-spacing:1px;color:rgba(240,235,220,.35);text-decoration:none;font-weight:300;transition:color .25s;}
.footer-col a:hover{color:var(--gold);}
.footer-bottom{border-top:1px solid rgba(200,160,96,.08);padding-top:22px;display:flex;justify-content:space-between;}
.footer-bottom p{font-size:10.5px;letter-spacing:2px;color:rgba(240,235,220,.2);font-family:'Cormorant Garamond',serif;}

@media(max-width:768px){
  .nav-links{display:none;}
  .page-hero{grid-template-columns:1fr;padding:120px 6% 60px;}
  .swatch-grid{grid-template-columns:repeat(4,1fr);}
  .door-intro{grid-template-columns:1fr;}
  .door-grid{grid-template-columns:1fr;}
  .craft-grid{grid-template-columns:1fr;}
  .hw-grid{grid-template-columns:1fr;}
  .partner-grid{grid-template-columns:repeat(2,1fr);}
  .cert-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .partner-intro{grid-template-columns:1fr;}
}