*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#0a0a0a;--surface:#111;--border:#222;--gold:#c9a96e;--gold-light:#d4b87a;--gold-dim:rgba(201,169,110,.15);--text:#e8e8e8;--text-dim:#999;--white:#f5f5f5;--radius:4px;--max-w:1200px}
html{scroll-behavior:smooth}
body{font:15px/1.7 -apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden}
a{color:var(--gold);text-decoration:none;transition:color .3s}
a:hover{color:var(--gold-light)}
img{max-width:100%;height:auto}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}

/* Nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:999;padding:0 48px;height:80px;display:flex;align-items:center;justify-content:space-between;transition:all .5s cubic-bezier(.4,0,.2,1);background:transparent}
.nav.scrolled{background:rgba(10,10,10,.88);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid rgba(201,169,110,.12);box-shadow:0 4px 40px rgba(0,0,0,.5)}
.nav .logo{display:flex;align-items:baseline;gap:6px;font-size:20px;font-weight:300;letter-spacing:4px;color:var(--text);text-decoration:none;transition:all .4s}
.nav .logo .cn{font-weight:600;color:var(--gold);font-size:22px;letter-spacing:2px}
.nav .logo .divider{color:var(--gold-dim);font-weight:200;margin:0 2px}
.nav .logo .en{font-size:14px;letter-spacing:6px;color:var(--text-dim);font-weight:400;text-transform:uppercase}
.nav .logo:hover .cn{color:var(--gold-light)}
.nav .logo:hover .en{color:var(--gold)}
.nav .links{display:flex;gap:36px;list-style:none;align-items:center}
.nav .links a{color:var(--text-dim);font-size:13px;letter-spacing:1.5px;font-weight:400;position:relative;padding:4px 0;transition:color .35s}
.nav .links a::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:1.5px;background:linear-gradient(90deg,var(--gold),var(--gold-light));transition:width .4s cubic-bezier(.4,0,.2,1)}
.nav .links a:hover,.nav .links a.active{color:var(--gold)}
.nav .links a:hover::after,.nav .links a.active::after{width:100%}
.nav .menu-btn{display:none;background:none;border:none;color:var(--gold);font-size:26px;cursor:pointer;padding:4px;transition:transform .3s}
.nav .menu-btn:hover{transform:scale(1.1)}

/* Hero */
.hero{position:relative;height:100vh;min-height:600px;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;background:linear-gradient(135deg,#0a0a0a 0%,#1a1a1a 50%,#0a0a0a 100%)}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(201,169,110,.06) 0%,transparent 70%)}
.hero .hero-content{position:relative;z-index:1;max-width:800px;padding:0 24px}
.hero h1{font-size:clamp(32px,6vw,64px);font-weight:200;letter-spacing:8px;color:var(--gold);margin-bottom:24px;line-height:1.3}
.hero h1 strong{font-weight:600;display:block;font-size:clamp(20px,3vw,28px);letter-spacing:4px;color:var(--text);margin-top:8px}
.hero p{color:var(--text-dim);font-size:16px;letter-spacing:2px;margin-bottom:40px;line-height:1.8}
.hero .btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{padding:14px 36px;border:1px solid var(--gold);border-radius:0;font-size:13px;letter-spacing:3px;cursor:pointer;transition:all .4s;display:inline-block;text-transform:uppercase}
.btn-primary{background:var(--gold);color:#0a0a0a}
.btn-primary:hover{background:transparent;color:var(--gold)}
.btn-outline{background:transparent;color:var(--gold)}
.btn-outline:hover{background:var(--gold);color:#0a0a0a}
.scroll-indicator{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);color:var(--gold);font-size:12px;letter-spacing:2px;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(10px)}}

/* Section */
.section{padding:100px 0}
.section.dark{background:var(--surface)}
.section-header{text-align:center;margin-bottom:64px}
.section-header .tag{display:inline-block;font-size:11px;letter-spacing:4px;color:var(--gold);text-transform:uppercase;margin-bottom:16px;border:1px solid var(--gold-dim);padding:4px 16px}
.section-header h2{font-size:clamp(24px,4vw,36px);font-weight:300;letter-spacing:4px;color:var(--text);margin-bottom:12px}
.section-header .line{width:40px;height:1px;background:var(--gold);margin:16px auto 0}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.about-text h3{font-size:24px;font-weight:300;letter-spacing:3px;color:var(--gold);margin-bottom:20px}
.about-text p{color:var(--text-dim);line-height:2;margin-bottom:16px}
.about-image{position:relative}
.about-image img{width:100%;border:1px solid var(--border);filter:grayscale(20%)}
.about-image::after{content:'';position:absolute;top:16px;left:16px;right:-16px;bottom:-16px;border:1px solid var(--gold-dim);z-index:-1}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;text-align:center;padding:60px 0}
.stat-item .num{font-size:42px;font-weight:200;color:var(--gold);letter-spacing:2px}
.stat-item .label{color:var(--text-dim);font-size:13px;letter-spacing:2px;margin-top:8px;text-transform:uppercase}

/* Products Grid */
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:30px}
.product-card{background:var(--surface);border:1px solid var(--border);overflow:hidden;transition:all .4s;cursor:pointer}
.product-card:hover{transform:translateY(-6px);border-color:var(--gold-dim);box-shadow:0 20px 60px rgba(0,0,0,.3)}
.product-card .img-wrap{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--bg)}
.product-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.product-card:hover .img-wrap img{transform:scale(1.05)}
.product-card .info{padding:24px}
.product-card .info h4{font-size:16px;font-weight:400;letter-spacing:1px;margin-bottom:8px;color:var(--text)}
.product-card .info .cat{font-size:11px;color:var(--gold);letter-spacing:2px;text-transform:uppercase}
.product-card .info .desc{font-size:13px;color:var(--text-dim);margin-top:8px;line-height:1.6}

/* Parallax Banner */
.parallax{position:relative;padding:120px 0;text-align:center;background:var(--surface);overflow:hidden}
.parallax::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 50%,var(--gold-dim) 0%,transparent 60%)}
.parallax h2{position:relative;font-size:clamp(24px,4vw,36px);font-weight:200;letter-spacing:6px;color:var(--gold);margin-bottom:16px}
.parallax p{position:relative;color:var(--text-dim);letter-spacing:2px;font-size:14px}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:30px}
.news-card{background:var(--surface);border:1px solid var(--border);overflow:hidden;transition:all .4s}
.news-card:hover{transform:translateY(-4px);border-color:var(--gold-dim)}
.news-card .img-wrap{aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.news-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.news-card:hover .img-wrap img{transform:scale(1.05)}
.news-card .info{padding:24px}
.news-card .info .date{font-size:11px;color:var(--gold);letter-spacing:2px;margin-bottom:8px}
.news-card .info h4{font-size:16px;font-weight:400;margin-bottom:8px;color:var(--text)}
.news-card .info p{font-size:13px;color:var(--text-dim);line-height:1.6}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.contact-info h3{font-size:20px;font-weight:300;color:var(--gold);letter-spacing:2px;margin-bottom:24px}
.contact-info .item{display:flex;align-items:flex-start;gap:16px;margin-bottom:24px}
.contact-info .item .icon{font-size:18px;color:var(--gold);flex-shrink:0;margin-top:2px}
.contact-info .item .text{color:var(--text-dim);font-size:14px;line-height:1.8}
.contact-form .form-group{margin-bottom:20px}
.contact-form input,.contact-form textarea{width:100%;padding:14px 18px;background:transparent;border:1px solid var(--border);color:var(--text);font-size:14px;transition:border-color .3s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--gold)}
.contact-form textarea{resize:vertical;min-height:140px}
.contact-form .btn{width:100%}

/* Page Hero (sub pages) */
.page-hero{padding:160px 0 80px;text-align:center;background:linear-gradient(180deg,var(--surface) 0%,var(--bg) 100%)}
.page-hero h1{font-size:clamp(28px,5vw,44px);font-weight:200;letter-spacing:6px;color:var(--gold)}
.page-hero p{color:var(--text-dim);margin-top:12px;letter-spacing:2px;font-size:14px}

/* Product Detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.product-detail .gallery img{width:100%;border:1px solid var(--border)}
.product-detail .info h2{font-size:28px;font-weight:300;letter-spacing:2px;color:var(--text);margin-bottom:16px}
.product-detail .info .meta{color:var(--gold);font-size:13px;letter-spacing:2px;margin-bottom:20px}
.product-detail .info .desc{color:var(--text-dim);line-height:2}

/* News Detail */
.news-detail{max-width:800px;margin:0 auto}
.news-detail h2{font-size:28px;font-weight:300;letter-spacing:2px;margin-bottom:16px}
.news-detail .meta{color:var(--gold);font-size:12px;letter-spacing:2px;margin-bottom:32px}
.news-detail .cover{margin-bottom:32px;border:1px solid var(--border)}
.news-detail .content{color:var(--text-dim);line-height:2;font-size:15px}

/* Footer */
.footer{background:var(--surface);border-top:1px solid var(--border);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer h4{font-size:11px;letter-spacing:3px;color:var(--gold);text-transform:uppercase;margin-bottom:20px}
.footer .about-text{color:var(--text-dim);font-size:13px;line-height:2}
.footer .links{list-style:none}
.footer .links li{margin-bottom:10px}
.footer .links a{color:var(--text-dim);font-size:13px}
.footer .links a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;text-align:center;color:var(--text-dim);font-size:12px;letter-spacing:1px}

/* Filter */
.filter-bar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:40px;justify-content:center}
.filter-bar button{padding:8px 20px;background:transparent;border:1px solid var(--border);color:var(--text-dim);cursor:pointer;font-size:12px;letter-spacing:2px;transition:all .3s}
.filter-bar button:hover,.filter-bar button.active{background:var(--gold);color:#0a0a0a;border-color:var(--gold)}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(30px);transition:all .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* Toast */
.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 20px;border-radius:var(--radius);font-size:13px;animation:slideIn .3s ease;max-width:360px}
.toast-success{background:#27ae60;color:#fff}
.toast-error{background:#e74c3c;color:#fff}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* Responsive */
@media(max-width:1024px){
  .about-grid,.contact-grid,.product-detail{grid-template-columns:1fr;gap:40px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav{padding:0 20px}
  .nav .links{display:none;position:absolute;top:72px;left:0;right:0;background:rgba(10,10,10,.98);flex-direction:column;padding:24px;gap:20px;border-bottom:1px solid var(--border)}
  .nav .links.open{display:flex}
  .nav .menu-btn{display:block}
  .hero h1{letter-spacing:4px}
  .section{padding:60px 0}
  .stats{grid-template-columns:1fr 1fr;gap:20px}
  .stat-item .num{font-size:28px}
  .products-grid,.news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
/* Gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.gallery-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:6px;overflow:hidden;transition:transform .4s,border-color .4s,box-shadow .4s;text-decoration:none;color:var(--text)}
.gallery-card:hover{transform:translateY(-6px);border-color:var(--gold);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.gallery-card-img{position:relative;overflow:hidden;height:240px}
.gallery-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.gallery-card:hover .gallery-card-img img{transform:scale(1.05)}
.gallery-card-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.7) 0%,transparent 60%);display:flex;align-items:flex-end;padding:16px;opacity:0;transition:opacity .3s}
.gallery-card:hover .gallery-card-overlay{opacity:1}
.gallery-card-overlay span{color:var(--gold);font-size:13px;letter-spacing:2px}
.gallery-card-info{padding:14px 16px}
.gallery-card-info h3{font-size:15px;font-weight:500;letter-spacing:1px;margin-bottom:4px}
.gallery-card-info p{font-size:12px;color:var(--text-dim)}
.back-link{display:inline-block;color:var(--gold);font-size:13px;letter-spacing:1px;margin-bottom:24px;text-decoration:none}
.back-link:hover{color:var(--gold-light)}
/* masonry fallback */
.gallery-masonry{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.gallery-item{background:var(--surface);border:1px solid var(--border);border-radius:6px;overflow:hidden;cursor:pointer;transition:transform .3s,border-color .3s}
.gallery-item:hover{transform:translateY(-3px);border-color:var(--gold)}
.gallery-item img{width:100%;height:220px;object-fit:cover;display:block;transition:transform .5s}
.gallery-item:hover img{transform:scale(1.03)}
.gallery-item-info{padding:10px 14px}
.gallery-item-info h4{font-size:13px;font-weight:500;color:var(--text)}
.gallery-item-info p{font-size:11px;color:var(--text-dim);margin-top:2px}
/* Lightbox */
.lightbox{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.92);display:none;align-items:center;justify-content:center}
.lightbox.open{display:flex}
.lightbox-close{position:absolute;top:20px;right:30px;font-size:36px;color:var(--text-dim);cursor:pointer;z-index:2;transition:color .3s}
.lightbox-close:hover{color:var(--gold)}
.lightbox-prev,.lightbox-next{position:absolute;top:50%;transform:translateY(-50%);font-size:48px;color:var(--text-dim);cursor:pointer;z-index:2;background:none;border:none;padding:10px;transition:color .3s}
.lightbox-prev{left:20px}
.lightbox-next{right:20px}
.lightbox-prev:hover,.lightbox-next:hover{color:var(--gold)}
.lightbox-content{text-align:center;max-width:90vw;max-height:90vh}
.lightbox-content img{max-width:100%;max-height:80vh;object-fit:contain;border-radius:4px}
.lightbox-content p{margin-top:12px;color:var(--text-dim);font-size:13px;letter-spacing:1px}
/* Lazy load */
img.lazy{opacity:.2;transition:opacity .5s}
img.lazy.loaded{opacity:1}
/* Load more */
.load-more-wrap{text-align:center;margin-top:32px}