:root{--ivory:#FFFEF7;--gold:#C9A96E;--gold-light:#E8D5A3;--gold-dark:#A07C3A;--charcoal:#2C2C2C;--soft-gray:#F5F3EF;--warm-white:#FDFBF7;--text-light:#6B6B6B;--border:#E8E4DC}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','Noto Serif JP',sans-serif;background:var(--ivory);color:var(--charcoal);line-height:1.7;overflow-x:hidden}
h1,h2,h3,h4{font-family:'Cormorant Garamond','Noto Serif JP',serif;font-weight:400;letter-spacing:0.02em}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}

/* LANGUAGE SYSTEM: hide all by default, show ja via CSS */
[data-lang]{display:none}
[data-lang="ja"]{display:block}
.t[data-lang]{display:none}
.t[data-lang="ja"]{display:inline}

/* NAVBAR */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;padding:1.2rem 4rem;transition:background .4s,box-shadow .4s}
.navbar.scrolled{background:rgba(255,254,247,.95);backdrop-filter:blur(10px);box-shadow:0 1px 20px rgba(0,0,0,.06)}
.nav-logo{display:flex;flex-direction:column;align-items:flex-start;text-decoration:none;color:var(--charcoal)}
.nav-logo-en{font-family:'Cormorant Garamond',serif;font-size:1.5rem;font-weight:500;letter-spacing:.25em;text-transform:uppercase}
.nav-logo-cn{font-size:.65rem;color:var(--gold);letter-spacing:.15em;margin-top:2px}
.nav-logo-line{width:100%;height:1px;background:var(--gold);margin-top:4px}
.nav-center{display:flex;gap:2.5rem;align-items:center}
.nav-link{font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;color:var(--text-light);transition:color .3s;position:relative}
.nav-link::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:1px;background:var(--gold);transition:width .3s}
.nav-link:hover,.nav-link.active{color:var(--charcoal)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:1.5rem}
.nav-cta{background:var(--charcoal);color:var(--ivory);padding:.6rem 1.5rem;font-size:.65rem;letter-spacing:.2em;text-transform:uppercase;transition:background .3s;border:none;cursor:pointer;font-family:'Inter',sans-serif;display:inline-block}
.nav-cta:hover{background:var(--gold-dark)}
.lang-toggle{display:flex;gap:.3rem;background:transparent;border:1px solid var(--border);border-radius:2px;overflow:hidden}
.lang-btn{padding:.3rem .7rem;font-size:.7rem;letter-spacing:.1em;border:none;background:transparent;cursor:pointer;color:var(--text-light);transition:all .3s;font-family:'Inter',sans-serif}
.lang-btn.active{background:var(--charcoal);color:var(--ivory)}
.lang-btn:hover:not(.active){background:var(--soft-gray)}

/* PAGE WRAPPER */
.page{padding-top:80px}

/* HERO */
.hero{min-height:calc(100vh - 80px);display:flex;align-items:center;background:linear-gradient(160deg,var(--ivory) 0%,#F9F3E8 60%,var(--gold-light) 100%);padding:5rem 4rem 4rem;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-20%;right:-10%;width:60%;height:140%;background:radial-gradient(ellipse,rgba(201,169,110,.08) 0%,transparent 70%);pointer-events:none}
.hero-inner{max-width:1200px;margin:0 auto;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.hero-text{animation:fadeUp 1s ease both}
.hero-eyebrow{font-size:.65rem;letter-spacing:.3em;color:var(--gold);text-transform:uppercase;margin-bottom:1.5rem}
.hero-title{font-size:clamp(2.2rem,4vw,3.6rem);line-height:1.15;margin-bottom:1.2rem}
.hero-title em{font-style:italic;color:var(--gold-dark)}
.hero-subtitle{font-size:1rem;color:var(--text-light);margin-bottom:2.5rem;line-height:2}
.hero-cta{display:inline-flex;align-items:center;gap:.8rem;background:var(--charcoal);color:var(--ivory);padding:1rem 2.5rem;font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;text-decoration:none;border:none;cursor:pointer;transition:all .4s;font-family:'Inter',sans-serif}
.hero-cta:hover{background:var(--gold-dark);transform:translateY(-2px)}
.hero-products{display:flex;gap:2rem;justify-content:center;align-items:flex-end;animation:fadeUp 1s .2s ease both}
.hero-product{flex:1;max-width:280px;transition:transform .5s cubic-bezier(.34,1.56,.64,1)}
.hero-product:hover{transform:translateY(-12px)}
.hero-product img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:4px;box-shadow:0 20px 60px rgba(0,0,0,.12)}
.hero-product-label{text-align:center;margin-top:1rem;font-size:.65rem;letter-spacing:.25em;color:var(--gold);text-transform:uppercase}

/* BENEFITS */
.benefits{padding:7rem 4rem;background:var(--ivory)}
.section-eyebrow{text-align:center;font-size:.65rem;letter-spacing:.4em;color:var(--gold);text-transform:uppercase;margin-bottom:1rem}
.section-title{text-align:center;font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:4rem}
.benefits-grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}
.benefit-card{text-align:center;padding:2.5rem 1.5rem;border:1px solid var(--border);border-radius:2px;transition:all .4s}
.benefit-card:hover{border-color:var(--gold-light);box-shadow:0 10px 40px rgba(201,169,110,.1);transform:translateY(-4px)}
.benefit-icon{width:48px;height:48px;margin:0 auto 1.5rem;stroke:var(--gold);fill:none;stroke-width:1}
.benefit-title{font-size:1.05rem;margin-bottom:.7rem;font-family:'Cormorant Garamond',serif}
.benefit-desc{font-size:.78rem;color:var(--text-light);line-height:1.8}

/* PRODUCT PREVIEW GRID */
.products-preview{padding:7rem 4rem;background:var(--soft-gray)}
.products-grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.product-card{background:#fff;border-radius:4px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:all .5s cubic-bezier(.34,1.56,.64,1)}
.product-card:hover{transform:translateY(-8px);box-shadow:0 20px 60px rgba(0,0,0,.1)}
.product-img-wrap{aspect-ratio:4/3;overflow:hidden;position:relative;background:linear-gradient(135deg,#f9f6f0,#f0ebe0)}
.product-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.product-card:hover .product-img-wrap img{transform:scale(1.04)}
.product-badge{position:absolute;top:1rem;left:1rem;background:var(--gold);color:#fff;padding:.3rem .8rem;font-size:.6rem;letter-spacing:.2em;text-transform:uppercase}
.product-info{padding:2rem}
.product-variant{font-size:.6rem;letter-spacing:.3em;color:var(--gold);text-transform:uppercase;margin-bottom:.5rem}
.product-name-en{font-family:'Cormorant Garamond',serif;font-size:1.15rem;margin-bottom:.3rem;line-height:1.4}
.product-price{font-family:'Cormorant Garamond',serif;font-size:1.6rem;color:var(--charcoal);margin-bottom:1.5rem}
.product-btn{display:inline-block;padding:.8rem 2rem;background:var(--charcoal);color:var(--ivory);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;font-family:'Inter',sans-serif;transition:background .3s;text-align:center}
.product-btn:hover{background:var(--gold-dark)}

/* CTA BAND */
.cta-band{padding:5rem 4rem;background:var(--charcoal);text-align:center}
.cta-band h2{font-size:clamp(1.8rem,3vw,2.6rem);color:var(--ivory);margin-bottom:1rem}
.cta-band p{color:rgba(255,254,247,.6);font-size:.85rem;margin-bottom:2.5rem;max-width:500px;margin-left:auto;margin-right:auto}
.cta-btn{display:inline-flex;align-items:center;gap:.8rem;background:var(--gold);color:#fff;padding:1rem 2.5rem;font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;text-decoration:none;transition:all .3s;font-family:'Inter',sans-serif}
.cta-btn:hover{background:var(--gold-dark);transform:translateY(-2px)}
.cta-btn svg{flex-shrink:0}

/* FOOTER */
footer{background:#1a1a1a;color:rgba(255,254,247,.5);padding:4rem 4rem 2rem}
.footer-inner{max-width:1000px;margin:0 auto}
.footer-brand{margin-bottom:2.5rem}
.footer-logo-en{font-family:'Cormorant Garamond',serif;font-size:1.8rem;color:var(--ivory);letter-spacing:.25em;text-transform:uppercase}
.footer-logo-cn{font-size:.7rem;color:var(--gold);letter-spacing:.2em;margin-top:4px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:3rem;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-col-title{font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:1rem}
.footer-col p,.footer-col li{font-size:.72rem;line-height:2;list-style:none}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:1.5rem;font-size:.65rem}
.footer-company{font-family:'Cormorant Garamond',serif;font-size:.9rem;color:var(--ivory);letter-spacing:.1em}

/* PAGE HEADER */
.page-header{padding:6rem 4rem 4rem;background:linear-gradient(160deg,var(--ivory) 0%,#F9F3E8 100%);text-align:center}
.page-header h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:.8rem}
.page-header p{color:var(--text-light);font-size:.9rem;max-width:500px;margin:0 auto}

/* PRODUCTS PAGE */
.products-section{padding:5rem 4rem}
.products-list{max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:4rem}
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;background:#fff;border-radius:4px;overflow:hidden;box-shadow:0 4px 30px rgba(0,0,0,.06)}
.product-detail:nth-child(even){direction:rtl}
.product-detail:nth-child(even) > * {direction:ltr}
.product-detail-img{aspect-ratio:3/4;overflow:hidden;background:linear-gradient(135deg,#f9f6f0,#f0ebe0)}
.product-detail-img img{width:100%;height:100%;object-fit:cover}
.product-detail-info{padding:3rem}
.product-detail-badge{background:var(--gold);color:#fff;padding:.3rem .8rem;font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;display:inline-block;margin-bottom:1rem}
.product-detail-name{font-family:'Cormorant Garamond',serif;font-size:1.8rem;margin-bottom:.3rem;line-height:1.3}
.product-detail-jp{font-family:'Noto Serif JP',serif;font-size:.85rem;color:var(--text-light);margin-bottom:.2rem}
.product-detail-cn{font-size:.85rem;color:var(--text-light);margin-bottom:1.5rem}
.product-detail-price{font-family:'Cormorant Garamond',serif;font-size:2rem;color:var(--charcoal);margin-bottom:.5rem}
.product-detail-note{font-size:.72rem;color:var(--text-light);margin-bottom:2rem}
.product-detail-btn{display:inline-block;padding:.9rem 2.5rem;background:var(--charcoal);color:var(--ivory);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;font-family:'Inter',sans-serif;transition:background .3s}
.product-detail-btn:hover{background:var(--gold-dark)}

/* INGREDIENTS */
.ingredients-section{padding:5rem 4rem;background:var(--soft-gray)}
.ingredients-inner{max-width:1000px;margin:0 auto}
.ingredients-title{font-size:1.8rem;text-align:center;margin-bottom:3rem}
.ingredients-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.ingredient-card{background:#fff;padding:2rem;border-radius:2px;border:1px solid var(--border)}
.ingredient-card h4{font-size:1.05rem;margin-bottom:.3rem}
.ingredient-card .role{font-size:.65rem;color:var(--gold);text-transform:uppercase;letter-spacing:.15em;margin-bottom:.8rem}
.ingredient-card p{font-size:.78rem;color:var(--text-light);line-height:1.8}

/* HOW TO USE */
.usage-section{padding:5rem 4rem;background:var(--ivory)}
.usage-inner{max-width:800px;margin:0 auto}
.usage-title{font-size:1.8rem;text-align:center;margin-bottom:3rem}
.usage-steps{display:flex;flex-direction:column;gap:1.5rem}
.usage-step{display:flex;gap:1.5rem;align-items:flex-start}
.step-num{width:32px;height:32px;border:1px solid var(--gold);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Cormorant Garamond',serif;font-size:.95rem;color:var(--gold);flex-shrink:0}
.step-text{font-size:.85rem;color:var(--text-light);line-height:1.8;padding-top:3px}

/* CONTACT PAGE */
.contact-section{padding:5rem 4rem;min-height:60vh}
.contact-inner{max-width:600px;margin:0 auto}
.contact-title{font-size:2rem;text-align:center;margin-bottom:.5rem}
.contact-subtitle{text-align:center;color:var(--text-light);font-size:.85rem;margin-bottom:3rem}
.form-group{margin-bottom:1.5rem}
.form-label{display:block;font-size:.7rem;letter-spacing:.15em;text-transform:uppercase;color:var(--text-light);margin-bottom:.5rem}
.form-input,.form-select,.form-textarea{width:100%;padding:.9rem 1rem;border:1px solid var(--border);background:var(--ivory);font-family:'Inter',sans-serif;font-size:.85rem;color:var(--charcoal);transition:border-color .3s;outline:none;border-radius:0}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--gold)}
.form-textarea{resize:vertical;min-height:120px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form-submit{width:100%;padding:1rem;background:var(--charcoal);color:var(--ivory);border:none;cursor:pointer;font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;font-family:'Inter',sans-serif;transition:background .3s;margin-top:1rem}
.form-submit:hover{background:var(--gold-dark)}
.form-note{font-size:.68rem;color:var(--text-light);margin-top:.8rem;text-align:center}
.form-success{text-align:center;padding:3rem;display:none}
.form-success.show{display:block}
.form-success h3{font-size:1.5rem;margin-bottom:.8rem;color:var(--gold)}

/* ABOUT PAGE */
.about-hero{padding:7rem 4rem 5rem;background:linear-gradient(160deg,var(--ivory) 0%,#F9F3E8 60%,var(--gold-light) 100%);text-align:center}
.about-hero h1{font-size:clamp(2rem,4vw,3rem);margin-bottom:1rem}
.about-hero p{max-width:600px;margin:0 auto;color:var(--text-light);font-size:.95rem;line-height:2}
.about-values{padding:5rem 4rem;background:var(--ivory)}
.about-values-grid{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:3rem;text-align:center}
.about-value h3{font-size:1.2rem;margin-bottom:.5rem}
.about-value p{font-size:.8rem;color:var(--text-light);line-height:1.8}
.about-mfg{padding:5rem 4rem;background:var(--charcoal);text-align:center}
.about-mfg h2{color:var(--ivory);font-size:1.8rem;margin-bottom:1rem}
.about-mfg p{color:rgba(255,254,247,.6);font-size:.85rem;max-width:500px;margin:0 auto;line-height:1.8}

/* PAGE NAV */
.page-nav{padding:3rem 4rem;background:var(--soft-gray);text-align:center}
.page-nav-list{display:flex;gap:2rem;justify-content:center;flex-wrap:wrap}
.page-nav-item{font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;color:var(--text-light);transition:color .3s}
.page-nav-item:hover{color:var(--gold)}

/* TOAST */
.toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(80px);background:var(--charcoal);color:var(--ivory);padding:.9rem 2rem;font-size:.75rem;letter-spacing:.1em;z-index:3000;opacity:0;transition:all .4s cubic-bezier(.34,1.56,.64,1);white-space:nowrap;border-radius:2px}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}

/* ANIMATIONS */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* RESPONSIVE */
@media(max-width:768px){
  .navbar{padding:1rem 1.5rem}
  .nav-center{display:none}
  .page{padding-top:60px}
  .hero{padding:5rem 1.5rem 3rem}
  .hero-inner{grid-template-columns:1fr;gap:3rem}
  .hero-products{gap:1rem}
  .hero-product{max-width:200px}
  .benefits{padding:4rem 1.5rem}
  .benefits-grid{grid-template-columns:1fr 1fr;gap:1rem}
  .products-preview{padding:4rem 1.5rem}
  .products-grid{grid-template-columns:1fr;max-width:480px}
  .product-detail{grid-template-columns:1fr}
  .product-detail:nth-child(even){direction:ltr}
  .ingredients-section{padding:3rem 1.5rem}
  .ingredients-grid{grid-template-columns:1fr}
  .usage-section{padding:3rem 1.5rem}
  .contact-section{padding:3rem 1.5rem}
  .form-row{grid-template-columns:1fr}
  .cta-band{padding:3rem 1.5rem}
  footer{padding:3rem 1.5rem 1.5rem}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .footer-bottom{flex-direction:column;gap:.5rem;text-align:center}
  .about-hero{padding:5rem 1.5rem 3rem}
  .about-values{padding:3rem 1.5rem}
  .about-values-grid{grid-template-columns:1fr}
  .about-mfg{padding:3rem 1.5rem}
  .page-header{padding:5rem 1.5rem 3rem}
  .products-section{padding:3rem 1.5rem}
}