:root{
  --bg:#ffffff; --ink:#111111; --muted:#9a9a9a; --line:#ececec;
  --gold:#a8843f; --gold-light:#c9a961; --dark:#111111; --cream:#f7f4ee;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Jost','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;font-weight:300;letter-spacing:.02em}
h1,h2,h3,.logo{font-family:'Cormorant Garamond','PingFang SC','Microsoft YaHei',serif}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1280px;margin:0 auto;padding:0 40px}

/* Header — white, minimal */
.site-header{background:#fff;color:var(--ink);position:sticky;top:0;z-index:100;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{font-size:26px;font-weight:600;color:var(--ink);letter-spacing:4px}
.logo span{color:var(--gold)}
.main-nav{display:flex;gap:40px;align-items:center}
.main-nav>a{color:#333;font-size:12px;transition:color .25s;padding:8px 0;letter-spacing:2px;text-transform:uppercase;font-weight:400}
.main-nav>a:hover{color:var(--gold)}
.nav-dropdown{position:relative}
.dropdown-menu{display:none;position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;min-width:230px;box-shadow:0 16px 40px rgba(0,0,0,.1);padding:14px 0;border-top:1px solid var(--gold-light)}
.nav-dropdown:hover .dropdown-menu{display:block}
.dropdown-menu a{display:block;padding:11px 26px;color:#333;font-size:13px;letter-spacing:1px;transition:.2s;text-align:center}
.dropdown-menu a:hover{color:var(--gold)}
.hamburger{display:none;background:var(--ink);border:0;cursor:pointer;width:44px;height:44px;border-radius:50%;position:relative;z-index:200;flex-direction:column;justify-content:center;align-items:center;flex-shrink:0}
.hamburger span{display:block;width:18px;height:1.5px;background:#fff;margin:2.5px 0;transition:.3s}
.hamburger.active span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.nav-close{display:none}

/* Hero — light, airy, editorial */
.hero{background:linear-gradient(180deg,#fff 0%,var(--cream) 100%);color:var(--ink);padding:160px 0 140px;text-align:center;position:relative}
.hero-sm{padding:100px 0 80px}
.hero-eyebrow{font-size:11px;color:var(--gold);letter-spacing:4px;text-transform:uppercase;margin-bottom:28px}
.hero h1{font-size:68px;font-weight:400;letter-spacing:1px;margin-bottom:26px;line-height:1.08;color:var(--ink)}
.hero-sub{font-size:15px;color:#888;max-width:560px;margin:0 auto 48px;font-weight:300;letter-spacing:1px;line-height:1.8}
.hero-cta{display:flex;gap:16px;justify-content:center}
.hero-link{font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--ink);border-bottom:1px solid var(--gold);padding-bottom:6px;transition:.3s}
.hero-link:hover{color:var(--gold)}
.hero::after{content:'';display:block;width:40px;height:1px;background:var(--gold);margin:0 auto}

/* Buttons */
.btn{display:inline-block;padding:16px 46px;font-size:11px;transition:.3s;cursor:pointer;border:1px solid transparent;letter-spacing:3px;text-transform:uppercase;font-weight:400}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-primary:hover{background:var(--gold);border-color:var(--gold)}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-lg{padding:18px 56px}

/* Trust bar — white with hairline dividers */
.trust-bar{background:#fff;padding:70px 0}
.trust-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;text-align:center}
.trust-item{border-right:1px solid var(--line)}
.trust-item:last-child{border-right:0}
.trust-num{font-family:'Cormorant Garamond',serif;font-size:42px;font-weight:400;color:var(--ink)}
.trust-label{font-size:10px;color:var(--muted);letter-spacing:2px;text-transform:uppercase;margin-top:8px}

/* Tags */
.tags-strip{padding:36px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tag{background:transparent;border:1px solid var(--line);padding:8px 22px;border-radius:30px;font-size:12px;color:#666;letter-spacing:1px}

/* Sections */
.section{padding:110px 0}
.section-alt{background:var(--cream)}
.section-title{font-size:42px;text-align:center;margin-bottom:16px;font-weight:500;letter-spacing:1px;color:var(--ink)}
.section-title::after{content:'';display:block;width:40px;height:1px;background:var(--gold);margin:22px auto 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:56px}
.section-head .section-title{margin-bottom:0;text-align:left}
.section-head .section-title::after{margin:18px 0 0}
.view-all{color:var(--ink);font-size:11px;letter-spacing:2px;text-transform:uppercase;border-bottom:1px solid var(--gold);padding-bottom:3px}

/* Category grid */
.cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:24px}
.cat-card{background:#fff;padding:50px 16px;text-align:center;transition:.3s;border:1px solid var(--line)}
.cat-card:hover{border-color:var(--gold-light);transform:translateY(-3px)}
.cat-card span{font-family:'Cormorant Garamond',serif;font-size:20px;letter-spacing:1px;color:var(--ink)}

/* Product grid */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:36px}
.product-card{background:transparent;transition:.3s}
.product-card:hover{transform:translateY(-4px)}
.product-img{aspect-ratio:1;background:#fff;overflow:hidden;position:relative;border:1px solid #f2f2f2}
.product-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.product-card:hover .product-img img{transform:scale(1.05)}
.product-name{padding:18px 4px;font-size:13px;line-height:1.5;letter-spacing:.5px;text-align:center;color:var(--ink)}

/* Features */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:50px}
.feature{text-align:center;padding:10px}
.feature-icon{font-size:28px;margin-bottom:18px;color:var(--gold)}
.feature h3{font-family:'Cormorant Garamond',serif;font-size:24px;margin-bottom:12px;font-weight:500;letter-spacing:1px}
.feature p{font-size:13px;color:#777;line-height:1.8}

/* Article grid */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.article-card{background:#fff;padding:40px 32px;transition:.3s;border:1px solid var(--line)}
.article-card:hover{border-color:var(--gold-light)}
.article-cat{font-size:11px;color:var(--gold);text-transform:uppercase;letter-spacing:2px}
.article-card h3{font-family:'Cormorant Garamond',serif;font-size:24px;margin:14px 0;font-weight:500;line-height:1.3}
.article-card p{font-size:13px;color:#777;margin-top:10px}

/* Compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:30px;max-width:920px;margin:0 auto}
.compare-col{padding:50px 40px;background:#fff;border:1px solid var(--line)}
.compare-good{border-top:2px solid var(--gold)}
.compare-col h3{font-family:'Cormorant Garamond',serif;font-size:26px;margin-bottom:24px;font-weight:500}
.compare-col ul{list-style:none}
.compare-col li{padding:11px 0;font-size:14px;border-bottom:1px solid #f0ece2;color:#444}

/* Product detail */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:70px;margin-bottom:90px}.product-detail>*{min-width:0;max-width:100%}
.gallery-main{border:1px solid var(--line);overflow:hidden;background:#fff}
.gallery-main img{width:100%;aspect-ratio:1;object-fit:cover}
.gallery-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}
.gallery-thumbs img{width:100%;aspect-ratio:1;object-fit:cover;cursor:pointer;border:1px solid var(--line);transition:.2s}
.gallery-thumbs img:hover{border-color:var(--gold)}
.product-info h1{font-size:36px;margin-bottom:18px;font-weight:500;line-height:1.2}
.badges{margin-bottom:22px}
.badge{display:inline-block;background:var(--ink);color:#fff;padding:6px 16px;font-size:11px;margin-right:6px;letter-spacing:1px;text-transform:uppercase}
.product-desc{color:#666;margin-bottom:30px;font-size:14px;line-height:1.9}
.spec-table,.price-table{width:100%;border-collapse:collapse;margin-bottom:24px;font-size:14px}
.spec-table td,.price-table td,.price-table th{padding:14px 0;border-bottom:1px solid var(--line);text-align:left}
.spec-table td:first-child{color:var(--muted);width:40%;font-size:13px;letter-spacing:1px}
.price-table th{background:var(--ink);color:#fff;padding:14px 18px;text-align:left;font-weight:400;letter-spacing:1px}
.moq{background:var(--cream);padding:16px 20px;margin-bottom:24px;font-size:13px;letter-spacing:1px;color:#555}
.cta-row{display:flex;gap:14px;margin-top:32px}
.cta-row .btn{flex:1;text-align:center}

/* Breadcrumb */
.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:28px;letter-spacing:1px}
.breadcrumb a{color:var(--gold)}

/* Pagination */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:70px}
.pagination a{padding:11px 18px;border:1px solid var(--line);font-size:13px;letter-spacing:1px;color:#555}
.pagination a.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Knowledge */
.kb-cats{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:50px}
.kb-cat{padding:10px 24px;border:1px solid var(--line);font-size:13px;letter-spacing:1px;background:transparent;color:#555}
.kb-cat.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Article page */
.article-page{max-width:780px}
.article-meta{color:var(--muted);font-size:12px;margin-bottom:36px;letter-spacing:1px}
.article-body{font-size:16px;line-height:1.9;color:#333}
.article-body h2,.article-body h3{margin:36px 0 18px;font-family:'Cormorant Garamond',serif;color:var(--ink)}
.article-body img{margin:28px 0}
.article-body p{margin-bottom:18px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:50px}
.step{text-align:center;padding:10px}
.step-num{width:60px;height:60px;border:1px solid var(--gold);color:var(--gold);font-family:'Cormorant Garamond',serif;font-size:28px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;border-radius:50%}
.step h3{font-size:20px;margin-bottom:12px;font-weight:500;font-family:'Jost',sans-serif;letter-spacing:1px}
.step p{font-size:13px;color:#777}

/* Footer — dark contrast */
.site-footer{background:#111;color:#999;padding:90px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.3fr;gap:70px;padding-bottom:60px}
.footer-logo{font-size:24px;color:#fff;font-weight:600;letter-spacing:4px;margin-bottom:20px}
.site-footer h4{color:#fff;margin-bottom:22px;font-size:12px;letter-spacing:2px;text-transform:uppercase;font-weight:400}
.site-footer a,.site-footer span{display:block;font-size:13px;padding:6px 0;color:#999}
.site-footer a:hover{color:var(--gold-light)}
.footer-bottom{border-top:1px solid #262626;padding:28px 0;font-size:12px;letter-spacing:1px}

/* Float WA */
.wa-float{position:fixed;right:28px;bottom:28px;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 6px 20px rgba(0,0,0,.25);z-index:99}

/* About */
.about-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:70px;align-items:start}
.about-h2{font-size:40px;line-height:1.2;margin-bottom:28px;font-weight:500}
.eyebrow{font-size:12px;color:var(--gold);letter-spacing:3px;text-transform:uppercase;margin-bottom:16px}
.about-rich p{color:#555;margin-bottom:18px;font-size:15px;line-height:1.9}
.about-stats{background:var(--cream);padding:50px 30px;display:grid;grid-template-columns:1fr 1fr;gap:30px;text-align:center}
.compare-bad{background:#fff;border:1px solid var(--line);border-top:2px solid #c98a8a}
.compare-bad h3{color:#8a5a5a}

/* Responsive */
@media (max-width:900px){
  .feature-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:1fr}
  .product-detail{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .header-inner{height:64px}
  .logo{font-size:20px}
  .hamburger{display:flex}
  .main-nav{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:85vw;background:#fff;flex-direction:column;gap:0;padding:20px 0;transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;-webkit-overflow-scrolling:touch;z-index:150;height:100vh}
  .main-nav.open{transform:translateX(0)}
  .main-nav>a{padding:15px 24px;width:100%;color:#333;border-bottom:1px solid var(--line);display:block;font-size:12px;text-align:left}
  .nav-dropdown{width:100%}
  .nav-drop-toggle{display:flex;justify-content:space-between;align-items:center;padding:15px 24px;width:100%;color:#333;border-bottom:1px solid var(--line);font-size:12px;letter-spacing:2px;text-transform:uppercase}
  .nav-drop-toggle .arrow{transition:transform .2s}
  .nav-dropdown.open .nav-drop-toggle .arrow{transform:rotate(180deg)}
  .dropdown-menu{position:static;display:none;background:#fafafa;box-shadow:none;padding:0;transform:none;border-top:0}
  .nav-dropdown:hover .dropdown-menu{display:none}
  .nav-dropdown.open .dropdown-menu{display:block}
  .dropdown-menu a{display:block;padding:12px 24px 12px 40px;color:#777;border-bottom:1px solid #eee;font-size:13px;text-align:left}
  .nav-close{display:block;width:100%;padding:16px 24px;background:var(--ink);color:#fff;border:0;font-size:12px;cursor:pointer;letter-spacing:2px;text-align:left;text-transform:uppercase;margin-bottom:10px}
  .hero{padding:80px 0}
  .hero h1{font-size:38px}
  .section{padding:70px 0}
  .section-title{font-size:30px}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .about-h2{font-size:30px}
}

/* Product gallery — Taobao style swipe */
.gallery{position:relative}
.gallery-main-swipe{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;border:1px solid var(--line);background:#fff;scrollbar-width:none;width:100%;aspect-ratio:1/1}
.gallery-main-swipe::-webkit-scrollbar{display:none}
.gallery-slide{flex:0 0 100%;height:100%;scroll-snap-align:center;position:relative;overflow:hidden;max-width:100%}
.gallery-slide img{width:100%;height:100%;object-fit:cover;display:block}
.gal-arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--line);font-size:22px;line-height:1;cursor:pointer;color:#333;z-index:5;transition:.2s}
.gal-arrow:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.gal-prev{left:10px}
.gal-next{right:10px}
.gallery-thumbs{display:flex;gap:8px;margin-top:10px;overflow-x:auto;scrollbar-width:none}
.gallery-thumbs::-webkit-scrollbar{display:none}
.gallery-thumbs img{width:64px;height:64px;object-fit:cover;border:1px solid var(--line);cursor:pointer;flex-shrink:0;transition:.2s}
.gallery-thumbs img.active{border:2px solid var(--gold);padding:2px}
@media(max-width:768px){.gal-arrow{display:none}}