:root{
 --ink:#171313;--muted:#706766;--paper:#fffdfa;--ivory:#f8f2ed;--line:#e7ddd7;
 --rose:#b54e69;--rose-dark:#7d263e;--champagne:#d8bca8;--dark:#21181a;
 --shadow:0 18px 50px rgba(48,30,33,.10);--radius:22px;--max:1400px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;background:var(--paper);color:var(--ink);line-height:1.6}
img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}.topbar{background:var(--dark);color:#f8eeee;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:36px;gap:20px}.topbar a{opacity:.92}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,250,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-row{height:82px;display:flex;align-items:center;gap:32px}.brand{font-weight:900;font-size:28px;letter-spacing:.12em}.brand em{font-style:normal;color:var(--rose)}
.main-nav{display:flex;align-items:center;gap:24px;margin-left:auto;font-size:14px;font-weight:700}.main-nav a:hover{color:var(--rose)}
.nav-actions{display:flex;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:999px;font-weight:800;font-size:14px;border:1px solid transparent;transition:.2s}
.btn-primary{background:var(--rose-dark);color:#fff}.btn-primary:hover{transform:translateY(-2px);background:#641c31}.btn-outline{border-color:var(--line);background:#fff}.btn-outline:hover{border-color:var(--rose);color:var(--rose)}
.mobile-toggle{display:none;margin-left:auto;border:0;background:transparent;font-size:27px}.hero{background:linear-gradient(115deg,#fffdfa 0%,#f6ece8 58%,#ead8d1 100%);overflow:hidden}
.hero-grid{min-height:710px;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:52px}.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:12px;font-weight:900;color:var(--rose)}
.hero h1{font-family:Georgia,'Times New Roman',serif;font-size:clamp(48px,6vw,86px);line-height:.98;letter-spacing:-.045em;margin:20px 0 24px;max-width:850px}
.hero p{font-size:19px;color:var(--muted);max-width:690px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0}.trust-row{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;font-weight:800;color:#4e4241}.trust-row span:before{content:'✓';color:var(--rose);margin-right:7px}
.hero-visual{position:relative}.hero-visual:before{content:'';position:absolute;inset:8% 3% -5% 15%;border-radius:50%;background:rgba(255,255,255,.55);filter:blur(6px)}
.hero-visual img{position:relative;width:100%;border-radius:42px;box-shadow:var(--shadow);aspect-ratio:1.25/1;object-fit:cover}.hero-note{position:absolute;right:-8px;bottom:22px;background:white;padding:16px 20px;border-radius:16px;box-shadow:var(--shadow);font-size:13px;font-weight:800}
.logo-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.logo-strip .container{display:grid;grid-template-columns:repeat(4,1fr)}
.promise{padding:22px 26px;border-right:1px solid var(--line)}.promise:last-child{border-right:0}.promise b{display:block;font-size:15px}.promise span{font-size:12px;color:var(--muted)}
.section{padding:100px 0}.section-sm{padding:70px 0}.section-ivory{background:var(--ivory)}.section-dark{background:var(--dark);color:white}.section-dark p{color:#cdbfc1}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:42px}.section-head h2{font-family:Georgia,serif;font-size:clamp(36px,4vw,58px);line-height:1.06;margin:10px 0 0;letter-spacing:-.03em;max-width:850px}.section-head p{max-width:560px;color:var(--muted);margin:0}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.category-card{position:relative;min-height:360px;border-radius:var(--radius);overflow:hidden;background:#eee;box-shadow:0 10px 32px rgba(30,20,20,.07)}
.category-card img{width:100%;height:100%;object-fit:cover;transition:.35s}.category-card:hover img{transform:scale(1.04)}.category-card:after{content:'';position:absolute;inset:0;background:linear-gradient(transparent 35%,rgba(20,12,14,.82))}
.category-copy{position:absolute;z-index:2;left:24px;right:24px;bottom:22px;color:#fff}.category-copy h3{font-size:24px;margin:0 0 4px}.category-copy span{font-size:13px;opacity:.85}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.product-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.25s}.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.product-image{aspect-ratio:4/3;background:#f0efed;overflow:hidden}.product-image img{width:100%;height:100%;object-fit:cover}.product-body{padding:18px}.model{font-size:11px;letter-spacing:.15em;color:var(--rose);font-weight:900;text-transform:uppercase}
.product-body h3{font-size:18px;line-height:1.3;margin:7px 0 13px}.spec-row{display:grid;grid-template-columns:1fr 1fr;gap:6px;font-size:12px;color:var(--muted)}.spec-row b{color:var(--ink)}
.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:13px}.tag{padding:5px 8px;border-radius:999px;background:var(--ivory);font-size:10px;font-weight:800}.card-link{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:16px;padding-top:13px;font-size:12px;font-weight:900}
.ecosystem{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}.ecosystem-panel{background:white;border-radius:30px;padding:34px;box-shadow:var(--shadow)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.step{background:var(--ivory);border:1px solid var(--line);border-radius:16px;padding:20px;min-height:150px}.step strong{display:block;font-size:13px;color:var(--rose);margin-bottom:8px}.step b{display:block;font-size:17px;margin-bottom:6px}.step span{font-size:12px;color:var(--muted)}
.buyer-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.buyer-card{padding:24px;border-radius:18px;background:#fff;border:1px solid var(--line)}.buyer-card h3{font-size:18px;margin:0 0 10px}.buyer-card p{font-size:13px;color:var(--muted)}
.oem-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}.oem-board{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.oem-item{padding:22px;border-radius:18px;background:#312428;border:1px solid #49363b}.oem-item b{display:block;margin-bottom:6px}.oem-item span{font-size:12px;color:#cdbfc1}
.qc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.qc-card{border-top:3px solid var(--rose);background:#fff;padding:22px 18px;border-radius:0 0 14px 14px;box-shadow:0 8px 26px rgba(20,10,12,.06)}.qc-card b{font-size:14px}.qc-card p{font-size:12px;color:var(--muted)}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article-card{border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff}.article-card small{color:var(--rose);font-weight:900}.article-card h3{font-family:Georgia,serif;font-size:25px;line-height:1.15;margin:12px 0}.article-card p{font-size:13px;color:var(--muted)}
.rfq{background:linear-gradient(130deg,#7d263e,#321d24);color:#fff;border-radius:34px;padding:54px}.rfq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:46px}.rfq h2{font-family:Georgia,serif;font-size:48px;line-height:1.05;margin:10px 0}.rfq p{color:#edd9df}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.field input,.field select,.field textarea{width:100%;padding:13px 14px;border:1px solid rgba(255,255,255,.25);border-radius:10px;background:rgba(255,255,255,.1);color:#fff}.field select option{color:#111}.field textarea{min-height:100px}.btn-light{background:#fff;color:#4d2130}
.footer{background:#171214;color:#e8dfe1;padding:70px 0 30px}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:40px}.footer h4{font-size:13px;text-transform:uppercase;letter-spacing:.12em}.footer a{display:block;color:#bfaeb2;font-size:13px;margin:8px 0}.footer-bottom{border-top:1px solid #35272a;margin-top:46px;padding-top:22px;color:#8f7e82;font-size:12px}
.page-hero{padding:84px 0 58px;background:var(--ivory);border-bottom:1px solid var(--line)}.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:18px}.page-hero h1{font-family:Georgia,serif;font-size:clamp(44px,6vw,72px);line-height:1;margin:0 0 18px}.page-hero p{max-width:780px;color:var(--muted);font-size:17px}
.catalog-layout{display:grid;grid-template-columns:250px 1fr;gap:30px}.filters{position:sticky;top:110px;align-self:start;border:1px solid var(--line);border-radius:18px;padding:20px;background:#fff}.filter-group{margin-bottom:18px}.filter-group label{font-size:11px;text-transform:uppercase;font-weight:900;display:block;margin-bottom:6px}.filter-group input,.filter-group select{width:100%;padding:11px;border:1px solid var(--line);border-radius:9px;background:#fff}
.result-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.result-count{font-size:13px;color:var(--muted)}
.product-detail{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}.gallery-main{background:#f1efed;border-radius:24px;overflow:hidden}.gallery-main img{width:100%;aspect-ratio:4/3;object-fit:cover}.gallery-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:10px}.thumb{background:#eee;border-radius:10px;overflow:hidden;border:2px solid transparent}.thumb.active{border-color:var(--rose)}.detail-panel{position:sticky;top:112px}.detail-panel h1{font-family:Georgia,serif;font-size:50px;line-height:1.05;margin:8px 0 16px}.lead{color:var(--muted);font-size:16px}.detail-specs{border-top:1px solid var(--line);margin:24px 0}.detail-spec{display:grid;grid-template-columns:150px 1fr;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}.detail-spec span:first-child{color:var(--muted)}.detail-actions{display:flex;gap:10px;flex-wrap:wrap}.content-grid{display:grid;grid-template-columns:1fr 300px;gap:48px}.prose h2{font-family:Georgia,serif;font-size:38px;margin-top:50px}.prose h3{font-size:22px;margin-top:30px}.prose p,.prose li{color:#4f4645}.toc{position:sticky;top:112px;align-self:start;background:var(--ivory);border-radius:18px;padding:20px}.toc a{display:block;font-size:13px;padding:6px 0;color:var(--muted)}
.compare{width:100%;border-collapse:collapse;font-size:13px}.compare th,.compare td{padding:12px;border:1px solid var(--line);text-align:left}.compare th{background:var(--ivory)}
.notice{padding:16px 18px;border-left:4px solid var(--rose);background:#fff3f5;border-radius:8px;font-size:13px}
.whatsapp{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:#1f9d61;color:#fff;font-weight:900;box-shadow:0 10px 30px rgba(0,0,0,.22)}
.hidden{display:none!important}
@media(max-width:1100px){.main-nav{display:none}.mobile-toggle{display:block}.nav-actions .btn-outline{display:none}.hero-grid,.ecosystem,.oem-grid,.rfq-grid,.product-detail,.content-grid{grid-template-columns:1fr}.hero-grid{padding:70px 0}.hero-visual{max-width:760px}.product-grid{grid-template-columns:repeat(3,1fr)}.buyer-grid{grid-template-columns:repeat(3,1fr)}.qc-grid{grid-template-columns:repeat(3,1fr)}.catalog-layout{grid-template-columns:1fr}.filters{position:static}.detail-panel{position:static}.toc{position:static}}
@media(max-width:760px){.container{width:min(100% - 28px,var(--max))}.topbar .container{justify-content:center}.topbar .container span:last-child{display:none}.nav-row{height:70px}.brand{font-size:22px}.nav-actions{display:none}.hero h1{font-size:48px}.hero p{font-size:16px}.hero-note{position:static;margin-top:10px}.logo-strip .container{grid-template-columns:1fr 1fr}.promise:nth-child(2){border-right:0}.category-grid,.article-grid{grid-template-columns:1fr}.product-grid{grid-template-columns:repeat(2,1fr);gap:10px}.product-body{padding:12px}.product-body h3{font-size:14px}.spec-row{grid-template-columns:1fr;font-size:11px}.buyer-grid{grid-template-columns:1fr}.steps,.oem-board{grid-template-columns:1fr}.qc-grid{grid-template-columns:1fr 1fr}.section{padding:68px 0}.section-head{display:block}.section-head p{margin-top:16px}.rfq{padding:30px 20px}.rfq h2{font-size:38px}.form-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.detail-panel h1{font-size:38px}.detail-spec{grid-template-columns:115px 1fr}.page-hero{padding:60px 0 40px}}

/* GEO / AI Search v2 */
.geo-answer{margin:0 0 34px;padding:28px 30px;border:1px solid #eadfe2;border-radius:22px;background:linear-gradient(135deg,#fff 0%,#fbf5f6 100%);box-shadow:0 16px 45px rgba(48,31,35,.06)}
.geo-answer-kicker{text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:12px;color:#8d2942;margin-bottom:8px}.geo-answer h2{margin:0 0 10px;font-size:clamp(26px,3vw,40px)}.geo-answer p{font-size:18px;line-height:1.75;margin:0;max-width:980px}.recommend-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0 0 30px}.recommend-card{padding:24px;border:1px solid #eadfe2;border-radius:18px;background:#fff}.recommend-card.muted{background:#f7f3f1}.recommend-card span{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:#8d2942;margin-bottom:8px}.recommend-card p{margin:0;line-height:1.7}.faq-list details{border-top:1px solid #e8e2e0;padding:18px 0}.faq-list details:last-child{border-bottom:1px solid #e8e2e0}.faq-list summary{cursor:pointer;font-weight:750;font-size:17px}.faq-list p{margin:10px 0 0}.compare-table-wrap{overflow:auto;margin:22px 0 34px}.compare-table{width:100%;border-collapse:collapse;background:#fff}.compare-table th,.compare-table td{border:1px solid #e8e2e0;padding:15px;text-align:left;vertical-align:top}.compare-table th{background:#f7f3f1}.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.solution-card{display:block;padding:28px;border-radius:22px;background:#fff;border:1px solid #eadfe2;text-decoration:none;color:inherit;transition:.25s}.solution-card:hover{transform:translateY(-3px);box-shadow:0 18px 45px rgba(48,31,35,.08)}.solution-card span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#8d2942;font-weight:800}.solution-card h3{font-size:24px;margin:10px 0}.solution-card p{margin:0;line-height:1.65}@media(max-width:800px){.recommend-grid,.solution-grid{grid-template-columns:1fr}.geo-answer{padding:22px}.geo-answer p{font-size:16px}}

/* GEO Content Authority v3 */
.article-toc{padding:22px 24px;border:1px solid var(--line,#e7dfda);border-radius:18px;background:#fff;margin:24px 0 36px}.article-toc ol{margin:12px 0 0;padding-left:20px}.article-toc li{margin:7px 0}.article-toc a{text-decoration:none}.data-source,.article-meta{font-size:13px;color:#746b67;line-height:1.6}.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.resource-card{display:block;padding:26px;border:1px solid #eadfd8;background:#fff;border-radius:20px;text-decoration:none;color:inherit}.resource-card span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#9a4057}.resource-card h3{font-size:22px;margin:10px 0}.resource-card p{color:#69615e}.resource-card b{display:inline-block;margin-top:10px}.compare-table-wrap{overflow-x:auto}.prose .compare-table{width:100%;border-collapse:collapse;margin:22px 0 30px}.prose .compare-table th,.prose .compare-table td{border:1px solid #e8dfda;padding:12px 14px;text-align:left;vertical-align:top}.prose .compare-table th{background:#f8f4f1}.prose h2{scroll-margin-top:100px}@media(max-width:900px){.resource-grid{grid-template-columns:1fr 1fr}}@media(max-width:640px){.resource-grid{grid-template-columns:1fr}.article-toc{padding:18px}.prose .compare-table{font-size:13px}}