:root{--navy:#1c2b45;--navy2:#26395a;--gold:#b08d57;--bg:#f6f3ee;--bg2:#ece6dc;--text:#4a4f57;--line:#ddd5c8;--serif:Georgia,"Times New Roman",serif;--sans:"Segoe UI",Arial,"Microsoft YaHei",sans-serif}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:#fff;line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{width:min(1240px,92%);margin:0 auto}
h1,h2,h3,h4{font-family:var(--serif);color:var(--navy);font-weight:600;line-height:1.25}
h2{font-size:clamp(28px,3.2vw,40px);margin-bottom:16px}
h3{font-size:20px;margin-bottom:8px}
p+p{margin-top:12px}
section{padding:90px 0}
.bg-soft{background:var(--bg)}
.tag{display:inline-block;font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--gold);margin-bottom:12px;font-weight:600}
.tag:before{content:"";display:inline-block;width:28px;height:1px;background:var(--gold);vertical-align:middle;margin-right:10px}
.sec-head{text-align:center;max-width:800px;margin:0 auto 50px}
.split-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:46px;flex-wrap:wrap}
.split-head>div{max-width:720px}
.btn{display:inline-block;padding:13px 30px;background:var(--navy);color:#fff;border:1px solid var(--navy);font-size:14px;letter-spacing:1px;transition:.3s;cursor:pointer;font-family:var(--sans)}
.btn:hover{background:var(--gold);border-color:var(--gold)}
.btn.gold{background:var(--gold);border-color:var(--gold)}.btn.gold:hover{background:var(--navy);border-color:var(--navy)}
.btn.line{background:transparent;color:var(--navy)}.btn.line:hover{background:var(--navy);color:#fff}
.btn.white{background:transparent;color:#fff;border-color:#fff}.btn.white:hover{background:#fff;color:var(--navy)}
.btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.more{color:var(--gold);font-weight:600;font-size:14px}.more:after{content:" →"}
.img{position:relative;overflow:hidden;background:var(--bg2)}
.img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
a:hover .img img,.img:hover img{transform:scale(1.04)}
.note{font-size:12px;color:#9a8a6f;font-style:italic}
/* topbar header */
.topbar{background:var(--navy);color:#cfd6e2;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;padding:8px 0;gap:20px;flex-wrap:wrap}
.topbar span{margin-right:22px}
header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.06)}
header .container{display:flex;align-items:center;justify-content:space-between;height:80px;gap:20px}
.logo{font-family:var(--serif);font-size:26px;color:var(--navy);font-weight:700;letter-spacing:2px;line-height:1.1}
.logo small{display:block;font-family:var(--sans);font-size:9.5px;letter-spacing:2.6px;color:var(--gold);font-weight:600}
nav>ul{display:flex;list-style:none;gap:24px}
nav>ul>li{position:relative}
nav>ul>li>a{font-size:15px;color:var(--navy);font-weight:500;display:block;padding:29px 0;border-bottom:2px solid transparent;transition:.3s}
nav>ul>li>a:hover,nav>ul>li>a.on{border-color:var(--gold);color:var(--gold)}
nav .has>a:after{content:" ▾";font-size:11px}
nav .sub{position:absolute;top:100%;left:-18px;background:#fff;min-width:230px;list-style:none;box-shadow:0 14px 30px rgba(0,0,0,.1);border-top:2px solid var(--gold);opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s}
nav li:hover .sub{opacity:1;visibility:visible;transform:none}
nav .sub a{display:block;padding:11px 20px;font-size:14px;color:var(--navy);border-bottom:1px solid #f0ebe3}
nav .sub a:hover{background:var(--bg);color:var(--gold)}
.menu-btn{display:none;background:none;border:0;font-size:26px;color:var(--navy);cursor:pointer}
/* page banner */
.banner{position:relative;padding:0;height:400px;display:flex;align-items:center;color:#fff;background:var(--navy);overflow:hidden}
.banner .bg{position:absolute;inset:0}
.banner .bg img{width:100%;height:100%;object-fit:cover}
.banner:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,30,50,.85),rgba(20,30,50,.35))}
.banner.plain{height:300px;background:linear-gradient(135deg,#1c2b45 0%,#26395a 60%,#3a4b66 100%)}
.banner.plain:after{background:repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 80px)}
.banner .container{position:relative;z-index:2}
.banner h1{color:#fff;font-size:clamp(32px,4vw,52px);margin-bottom:10px}
.banner p{max-width:640px;color:#dfe4ec}
.crumb{font-size:13px;color:#c9d0dc;margin-bottom:14px;letter-spacing:1px}
.crumb a:hover{color:var(--gold)}
/* hero */
.hero{position:relative;height:min(780px,88vh);overflow:hidden;padding:0}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s}
.slide.active{opacity:1}
.slide .img{position:absolute;inset:0}
.slide .img:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,30,50,.8),rgba(20,30,50,.15));z-index:1}
.slide-txt{position:relative;z-index:3;height:100%;display:flex;flex-direction:column;justify-content:center;color:#fff;max-width:700px}
.slide-txt .tag{color:#e3c99c}
.slide-txt h1{color:#fff;font-size:clamp(34px,4.6vw,60px);margin-bottom:20px}
.slide-txt p{font-size:17px;color:#e6e9ef}
.dots{position:absolute;bottom:90px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.dots button{width:34px;height:3px;border:0;background:rgba(255,255,255,.45);cursor:pointer}
.dots button.active{background:var(--gold)}
.strip{padding:0;margin-top:-60px;position:relative;z-index:6}
.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;box-shadow:0 18px 40px rgba(0,0,0,.08)}
.strip-item{padding:32px 28px;border-left:1px solid var(--line)}
.strip-item:first-child{border-left:0;background:var(--navy);color:#cfd6e2}
.strip-item:first-child h4{color:#fff}
.strip-item .ico{font-size:28px;color:var(--gold);margin-bottom:6px}
.strip-item h4{font-size:18px;margin-bottom:4px}
.strip-item p{font-size:14px}
/* grids & cards */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);transition:.35s;display:block}
.card:hover{box-shadow:0 18px 40px rgba(28,43,69,.12);transform:translateY(-4px)}
.card .img{aspect-ratio:4/3}
.card .body{padding:22px 24px 26px}
.card p{font-size:14px;margin-bottom:12px}
.card .meta{font-size:12px;letter-spacing:1.5px;color:var(--gold);text-transform:uppercase;margin-bottom:6px;font-weight:600}
.tall{aspect-ratio:4/5}
.wide{aspect-ratio:16/9}
.photo{aspect-ratio:4/3}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:34px 20px;text-align:center;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{font-family:var(--serif);font-size:44px;color:var(--navy);display:block;line-height:1.1}
.stat span{font-size:14px;letter-spacing:1px}
.stats.dark{border-color:rgba(255,255,255,.15)}.stats.dark .stat{border-color:rgba(255,255,255,.15)}.stats.dark b{color:#fff}.stats.dark span{color:#c9d0dc}
.badge-img{position:relative}
.badge{position:absolute;right:-24px;bottom:36px;background:var(--gold);color:#fff;padding:24px 28px;font-family:var(--serif)}
.badge b{font-size:42px;display:block;line-height:1}
.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.feat div{border-top:2px solid var(--gold);padding-top:16px}
.feat h4{font-size:17px;margin-bottom:4px}
.feat p{font-size:14px}
.box{background:#fff;padding:30px;border-bottom:3px solid var(--gold)}
.box .num{font-family:var(--serif);font-size:34px;color:var(--bg2);font-weight:700;line-height:1}
.bg-soft .box{background:#fff}
.list{list-style:none;margin:16px 0}
.list li{padding:7px 0 7px 26px;position:relative;border-bottom:1px solid var(--line)}
.list li:before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:700}
.dark-sec{background:var(--navy);color:#c9d0dc}
.dark-sec h2,.dark-sec h3{color:#fff}
.dark-sec .list li{border-color:rgba(255,255,255,.12)}
/* sector cards */
.sector{position:relative;display:block;aspect-ratio:3/4;overflow:hidden}
.sector .img{position:absolute;inset:0}
.sector:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,30,50,.88),rgba(20,30,50,0) 60%)}
.sector .t{position:absolute;left:0;right:0;bottom:0;padding:28px;z-index:2;color:#dfe4ec}
.sector h3{color:#fff;font-size:24px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(6,1fr);position:relative}
.steps:before{content:"";position:absolute;top:36px;left:8%;right:8%;height:1px;background:var(--gold);opacity:.5}
.step{text-align:center;padding:0 12px;position:relative}
.step .c{width:72px;height:72px;border-radius:50%;background:#fff;border:1px solid var(--gold);display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-family:var(--serif);font-size:24px;color:var(--navy);position:relative;z-index:1}
.step h4{font-size:17px;margin-bottom:6px}.step p{font-size:13px}
/* process rows */
.prow{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:70px}
.prow:last-child{margin-bottom:0}
.prow:nth-child(even) .img{order:2}
.prow .n{font-family:var(--serif);font-size:56px;color:var(--bg2);line-height:1}
/* tabs/filter */
.filters{display:flex;justify-content:center;gap:10px;margin-bottom:40px;flex-wrap:wrap}
.filters button{padding:10px 24px;border:1px solid var(--line);background:#fff;color:var(--navy);cursor:pointer;font-size:14px;font-family:var(--sans)}
.filters button.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.case.hide{display:none}
.case dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:13px;margin-bottom:14px}
.case dt{color:var(--navy);font-weight:600}
.featured-case{display:grid;grid-template-columns:1.4fr 1fr;background:#fff;margin-bottom:50px;border:1px solid var(--line)}
.featured-case .img{min-height:420px}
.featured-case .body{padding:46px}
/* table */
.tbl{width:100%;border-collapse:collapse;background:#fff;font-size:14px}
.tbl th{background:var(--navy);color:#fff;text-align:left;padding:14px 18px;font-weight:500}
.tbl td{padding:14px 18px;border-bottom:1px solid var(--line)}
.tbl tr:hover td{background:var(--bg)}
/* certificates */
.cert{background:#fff;border:1px solid var(--line);padding:30px 20px;text-align:center}
.cert .seal{width:96px;height:96px;border-radius:50%;margin:0 auto 16px;border:2px solid var(--gold);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;color:var(--navy);font-size:20px;background:radial-gradient(circle,#fff 55%,var(--bg) 56%)}
.cert p{font-size:13px}
.g5{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
/* faq */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{padding:20px 0;cursor:pointer;font-family:var(--serif);font-size:18px;color:var(--navy);display:flex;justify-content:space-between;gap:20px}
.faq-q:after{content:"+";color:var(--gold);font-size:22px;line-height:1}
.faq-item.open .faq-q:after{content:"−"}
.faq-a{max-height:0;overflow:hidden;transition:.4s;font-size:14.5px}
.faq-item.open .faq-a{max-height:400px;padding-bottom:20px}
.faq-cat{margin:40px 0 6px;font-size:13px;letter-spacing:3px;color:var(--gold);text-transform:uppercase;font-weight:600}
.faq-cat:first-child{margin-top:0}
/* forms */
.form-box{background:var(--navy);padding:40px;color:#fff}
.form-box h3{color:#fff;font-size:26px}
.form-box p{color:#c9d0dc;font-size:14px;margin-bottom:20px}
.form-box input,.form-box textarea,.form-box select{width:100%;padding:13px 14px;margin-bottom:12px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;font-family:var(--sans);font-size:14px}
.form-box select option{color:#333}
.form-box ::placeholder{color:#aab3c2}
.form-box textarea{height:110px;resize:vertical}
.form-box .btn{width:100%}
.lform input,.lform textarea,.lform select{width:100%;padding:13px 14px;margin-bottom:14px;border:1px solid var(--line);font-family:var(--sans);font-size:14px;background:var(--bg)}
.lform textarea{height:140px}
.lform .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.lform label.lb{display:block;font-size:13px;color:var(--navy);font-weight:600;margin:4px 0 8px}
.checks{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:16px;font-size:14px}
.checks label{display:flex;align-items:center;gap:6px;cursor:pointer}
.checks input{width:auto;margin:0}
/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;background:#fff;box-shadow:0 18px 40px rgba(0,0,0,.06)}
.contact-info{background:var(--bg2);padding:46px}
.ci{display:flex;gap:16px;margin-bottom:24px}
.ci .ico{width:46px;height:46px;background:var(--navy);color:var(--gold);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:18px}
.ci b{color:var(--navy);display:block}
.contact-form{padding:46px}
.map{height:340px;background:linear-gradient(135deg,#e7e1d6,#d8cfbf);display:flex;align-items:center;justify-content:center;color:var(--navy);font-family:var(--serif);font-size:18px;text-align:center}
/* product detail */
.pd{display:grid;grid-template-columns:1.1fr 1fr;gap:60px}
.pd-main{aspect-ratio:4/3}
.pd-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}
.pd-thumbs .img{aspect-ratio:4/3;cursor:pointer;opacity:.6;border:2px solid transparent}
.pd-thumbs .img.active{opacity:1;border-color:var(--gold)}
.spec{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.spec td{padding:11px 14px;border-bottom:1px solid var(--line)}
.spec td:first-child{color:var(--navy);font-weight:600;width:38%;background:var(--bg)}
.tabs-h{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:30px;flex-wrap:wrap}
.tabs-h button{padding:14px 26px;border:0;background:none;font-family:var(--serif);font-size:17px;color:var(--navy);cursor:pointer;border-bottom:2px solid transparent}
.tabs-h button.active{border-color:var(--gold);color:var(--gold)}
.tab-p{display:none}.tab-p.active{display:block}
/* category nav */
.catnav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px}
.catnav a{padding:10px 22px;border:1px solid var(--line);font-size:14px;color:var(--navy);background:#fff}
.catnav a.on,.catnav a:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
/* timeline */
.tl{position:relative;max-width:900px;margin:0 auto}
.tl:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--gold)}
.tl-i{width:50%;padding:0 40px 40px;position:relative}
.tl-i:nth-child(odd){text-align:right}
.tl-i:nth-child(even){margin-left:50%}
.tl-i:after{content:"";position:absolute;top:6px;width:13px;height:13px;border-radius:50%;background:var(--gold)}
.tl-i:nth-child(odd):after{right:-7px}.tl-i:nth-child(even):after{left:-6px}
.tl-i b{font-family:var(--serif);font-size:24px;color:var(--navy);display:block}
/* exhibitions */
.ex-row{display:grid;grid-template-columns:140px 1fr auto;gap:30px;align-items:center;background:#fff;border:1px solid var(--line);padding:26px 30px;margin-bottom:16px}
.ex-date{text-align:center;border-right:1px solid var(--line);padding-right:20px}
.ex-date b{font-family:var(--serif);font-size:30px;color:var(--navy);display:block;line-height:1.1}
.ex-date span{font-size:12px;letter-spacing:2px;color:var(--gold)}
/* downloads */
.dl-item{display:flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--line);padding:22px 26px;margin-bottom:14px}
.dl-ico{width:56px;height:66px;background:var(--navy);color:#fff;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px;font-size:12px;font-weight:700;flex-shrink:0;clip-path:polygon(0 0,72% 0,100% 22%,100% 100%,0 100%)}
.dl-item div{flex:1}
.dl-item small{color:#8a8f97}
/* article */
.article{max-width:820px;margin:0 auto}
.article h2{font-size:28px;margin:36px 0 12px}
.article p{margin-bottom:14px}
.article .lead{font-size:18px;color:var(--navy);border-left:3px solid var(--gold);padding-left:20px;margin:24px 0}
.article table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article th{background:var(--navy);color:#fff;padding:12px;text-align:left;font-weight:500}
.article td{padding:12px;border-bottom:1px solid var(--line)}
.article figure{margin:28px 0}
.article figcaption{font-size:13px;color:#8a8f97;margin-top:8px}
.side-layout{display:grid;grid-template-columns:1fr 320px;gap:50px}
.side-box{background:var(--bg);padding:28px;margin-bottom:24px}
.side-box h4{font-size:18px;margin-bottom:12px}
.side-box a{display:block;padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}
.side-box a:hover{color:var(--gold)}
/* cta */
.cta{position:relative;color:#fff;text-align:center;padding:110px 0;overflow:hidden}
.cta .img{position:absolute;inset:0}
.cta:before{content:"";position:absolute;inset:0;background:rgba(20,30,50,.78);z-index:1}
.cta .container{position:relative;z-index:2;max-width:820px}
.cta h2{color:#fff}.cta p{color:#d6dbe4;margin-bottom:28px}
.cta-plain{background:var(--gold);color:#fff;padding:60px 0}
.cta-plain .container{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta-plain h2{color:#fff;font-size:30px;margin:0}
/* footer */
footer{background:#141f33;color:#9aa5b8;padding:70px 0 0;font-size:14px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.2fr;gap:36px}
footer h4{color:#fff;font-size:17px;margin-bottom:18px}
footer ul{list-style:none}footer li{padding:4px 0}
footer a:hover{color:var(--gold)}
footer .logo{color:#fff;margin-bottom:14px}
.f-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:50px;padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.float{position:fixed;right:22px;bottom:22px;display:flex;flex-direction:column;gap:10px;z-index:60}
.float a,.float button{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:600;border:0;cursor:pointer;box-shadow:0 6px 16px rgba(0,0,0,.18)}
.f-wa{background:#25d366}.f-mail{background:var(--gold)}.f-top{background:var(--navy)}
.modal{position:fixed;inset:0;background:rgba(10,16,28,.7);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal.show{display:flex}
.modal .form-box{width:min(480px,100%);position:relative;max-height:92vh;overflow:auto}
.modal .close{position:absolute;right:16px;top:10px;font-size:28px;color:#fff;cursor:pointer;background:none;border:0}
.toast{position:fixed;left:50%;top:24px;transform:translateX(-50%);background:var(--gold);color:#fff;padding:12px 26px;z-index:200;display:none}
@media(max-width:1100px){nav>ul{gap:16px}nav>ul>li>a{font-size:14px}.header-cta{display:none}}
@media(max-width:1024px){
 .g4,.feat,.strip-grid{grid-template-columns:repeat(2,1fr)}
 .g5{grid-template-columns:repeat(3,1fr)}
 .steps{grid-template-columns:repeat(3,1fr);row-gap:40px}.steps:before{display:none}
 .f-grid{grid-template-columns:1fr 1fr}
 .side-layout{grid-template-columns:1fr}
}
@media(max-width:900px){
 nav{position:fixed;top:80px;left:0;right:0;bottom:0;background:#fff;display:none;overflow:auto}
 nav.open{display:block}
 nav>ul{flex-direction:column;gap:0;padding:10px 5%}
 nav>ul>li>a{padding:14px 0;border-bottom:1px solid var(--line)}
 nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding-left:16px}
 .menu-btn{display:block}
 .g2,.g3,.prow,.featured-case,.pd,.contact-grid{grid-template-columns:1fr;gap:34px}
 .prow:nth-child(even) .img{order:0}
 .stats{grid-template-columns:1fr 1fr}.stat:nth-child(3){border-left:0}
 .badge{right:10px}
 .featured-case .img{min-height:280px}
 .ex-row{grid-template-columns:1fr}.ex-date{border:0;text-align:left}
 .tl:before{left:8px}.tl-i,.tl-i:nth-child(even){width:100%;margin:0;text-align:left;padding:0 0 30px 36px}.tl-i:after,.tl-i:nth-child(odd):after{left:2px;right:auto}
 section{padding:64px 0}
 .banner{height:320px}
}
@media(max-width:560px){.g4,.g5,.feat,.strip-grid,.steps,.f-grid,.lform .row{grid-template-columns:1fr}.strip-item{border-left:0;border-top:1px solid var(--line)}}

/* ===== product collection page ===== */
.pc-banner{position:relative;min-height:540px;display:flex;align-items:center;color:#fff;overflow:hidden;padding:70px 0}
.pc-banner .bg{position:absolute;inset:0}.pc-banner .bg img{width:100%;height:100%;object-fit:cover}
.pc-banner:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,30,50,.9) 0%,rgba(20,30,50,.6) 45%,rgba(20,30,50,.1) 100%)}
.pc-banner .container{position:relative;z-index:2}
.pc-banner h1{color:#fff;font-size:clamp(34px,4.4vw,56px);max-width:720px;margin-bottom:14px}
.pc-banner .sub{max-width:640px;color:#e3e7ee;font-size:17px}
.pc-banner .proof{font-size:14px;letter-spacing:1px;color:#e3c99c;margin-bottom:16px}
.pc-stats{display:grid;grid-template-columns:repeat(4,auto);gap:0;margin:30px 0;max-width:760px;border-top:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}
.pc-stats li{list-style:none;padding:16px 22px 16px 0;font-size:14px;color:#dfe4ec}
.pc-stats b{display:block;font-family:var(--serif);font-size:26px;color:#fff}
.gal{display:grid;grid-template-columns:90px 1fr;gap:14px}
.gal .pd-thumbs{display:flex;flex-direction:column;gap:12px;margin:0}
.gal .pd-thumbs .img{aspect-ratio:1/1}
.gal .pd-main{aspect-ratio:4/3}
.model{font-size:13px;letter-spacing:2px;color:var(--gold);font-weight:600;margin-bottom:8px}
.check{list-style:none;margin:18px 0 6px}
.check li{padding:9px 0 9px 32px;position:relative;border-bottom:1px dashed var(--line);color:var(--navy)}
.check li:before{content:"✓";position:absolute;left:0;top:9px;width:20px;height:20px;border-radius:50%;background:var(--gold);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center}
.slider-wrap{position:relative}
.slider{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 72px)/4);gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:4px}
.slider::-webkit-scrollbar{display:none}
.slider>*{scroll-snap-align:start}
.sl-btns{display:flex;gap:10px}
.sl-btns button{width:46px;height:46px;border:1px solid var(--navy);background:#fff;color:var(--navy);cursor:pointer;font-size:18px}
.sl-btns button:hover{background:var(--navy);color:#fff}
.iconbox{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.iconbox div{background:#fff;padding:30px 26px}
.iconbox .i{width:54px;height:54px;border-radius:50%;background:var(--bg);color:var(--gold);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.iconbox h4{font-size:18px;margin-bottom:6px}.iconbox p{font-size:14px}
.res{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.res>div{background:#fff;padding:34px;border:1px solid var(--line);text-align:center}
.res .i{font-size:34px;color:var(--gold);margin-bottom:10px}
.video{position:relative;display:block;aspect-ratio:16/9}
.video .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:84px;height:84px;border-radius:50%;background:rgba(176,141,87,.92);color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;z-index:2;box-shadow:0 0 0 12px rgba(255,255,255,.25)}
.vrow{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;padding:40px 0;border-bottom:1px solid var(--line)}
.vrow:nth-child(even) .img{order:2}
.vrow .img{aspect-ratio:4/3}
.art-layout{display:grid;grid-template-columns:1fr 340px;gap:56px;align-items:start}
.art-layout aside{position:sticky;top:100px}
.article.full{max-width:none}
.article h3{font-size:21px;margin:22px 0 8px}
.toc{background:var(--bg);padding:24px 28px;margin-bottom:24px}
.toc a{display:block;padding:5px 0;font-size:14px;color:var(--navy)}.toc a:hover{color:var(--gold)}
.related{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.related a{background:#fff;border:1px solid var(--line);padding:26px;transition:.3s}
.related a:hover{border-color:var(--gold);transform:translateY(-3px)}
.tbl-note{font-size:13px;color:#8a8f97;margin-top:10px}
.tbl-wrap{overflow-x:auto}
@media(max-width:1024px){.slider{grid-auto-columns:calc((100% - 24px)/2)}.iconbox,.related{grid-template-columns:1fr 1fr}.art-layout{grid-template-columns:1fr}.art-layout aside{position:static}.pc-stats{grid-template-columns:1fr 1fr}}
@media(max-width:900px){.vrow{grid-template-columns:1fr;gap:24px}.vrow:nth-child(even) .img{order:0}.res{grid-template-columns:1fr}.gal{grid-template-columns:1fr}.gal .pd-thumbs{flex-direction:row;order:2}.gal .pd-thumbs .img{width:80px}}
@media(max-width:560px){.slider{grid-auto-columns:85%}.iconbox,.related{grid-template-columns:1fr}}

/* article TOC */
.toc{background:var(--bg);border-left:3px solid var(--gold);padding:22px 28px;margin:0 0 30px}
.toc-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.toc-h b{font-family:var(--serif);font-size:20px;color:var(--navy)}
.toc-tg{width:30px;height:30px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--navy)}
.toc ol{margin:0;padding-left:22px;columns:2;column-gap:36px}
.toc li{padding:4px 0;font-size:14.5px;break-inside:avoid;color:var(--gold)}
.toc li a{color:var(--navy)}.toc li a:hover{color:var(--gold);text-decoration:underline}
.toc.closed ol{display:none}
.article h2[id]{scroll-margin-top:110px}
.article ul{margin:10px 0 16px 20px}.article li{margin:6px 0}
@media(max-width:700px){.toc ol{columns:1}}

/* ===== home trust sections ===== */
.certs{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.cert-card{background:#fff;border:1px solid var(--line);padding:30px 20px;text-align:center;transition:.3s}
.cert-card:hover{border-color:var(--gold);transform:translateY(-4px);box-shadow:0 14px 30px rgba(28,43,69,.08)}
.seal{width:92px;height:92px;margin:0 auto 16px;border-radius:50%;border:2px solid var(--gold);display:flex;align-items:center;justify-content:center;position:relative}
.seal:before{content:"";position:absolute;inset:6px;border:1px dashed var(--gold);border-radius:50%}
.seal span{font-family:var(--serif);font-weight:700;color:var(--navy);font-size:17px}
.cert-card h4{font-size:18px;margin-bottom:2px}.cert-card b{display:block;font-size:13px;color:var(--gold);font-weight:600;margin-bottom:8px}.cert-card p{font-size:13.5px}
.brand-group{margin-top:34px}
.brand-group h3{font-size:16px;letter-spacing:2px;text-transform:uppercase;color:var(--gold);font-family:var(--sans);margin-bottom:14px;text-align:center}
.brands{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.brands.b3{grid-template-columns:repeat(3,1fr);max-width:820px;margin:0 auto}
.brand{background:#fff;padding:28px 14px;text-align:center;transition:.3s}
.brand b{display:block;font-family:var(--serif);font-size:26px;color:var(--navy);letter-spacing:1px;filter:grayscale(1);opacity:.85}
.brand span{font-size:12px;color:#8a8f97}
.brand:hover{background:var(--bg)}.brand:hover b{color:var(--gold);opacity:1}
.showroom{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:240px 240px;gap:16px}
.showroom>div{position:relative;overflow:hidden}
.showroom .img{height:100%}
.showroom .img img{transition:.6s}.showroom>div:hover img{transform:scale(1.05)}
.sr-big{grid-row:span 2}
.sr-s:nth-of-type(4){grid-column:span 2}
.showroom .cap{position:absolute;left:0;right:0;bottom:0;padding:18px 20px;background:linear-gradient(transparent,rgba(20,30,50,.85));color:#fff}
.showroom .cap b{display:block;font-family:var(--serif);font-size:19px}.showroom .cap span{font-size:13px;color:#dfe4ec}
.clients{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.client{border:1px solid var(--line);padding:28px;display:grid;grid-template-columns:54px 1fr;column-gap:16px;transition:.3s}
.client:hover{border-color:var(--gold)}
.client .i{grid-row:span 2;width:54px;height:54px;border-radius:50%;background:var(--bg);color:var(--gold);font-size:22px;display:flex;align-items:center;justify-content:center}
.client h4{font-size:18px}.client p{font-size:14px}
.regions{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center}
.regions b{color:var(--navy);margin-right:6px}
.regions span{border:1px solid var(--line);padding:6px 16px;font-size:14px;background:var(--bg)}
.rv-slider{grid-auto-columns:calc((100% - 48px)/3)}
.review{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);padding:32px;display:flex;flex-direction:column}
.review .stars{color:var(--gold);letter-spacing:3px;margin-bottom:12px}
.review p{color:#dfe4ec;font-size:15px;flex:1}
.review .who{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}
.review .who b{display:block;color:#fff;font-family:var(--serif);font-size:17px}.review .who span{font-size:13px;color:#9aa6b8}
.dark-sec .sl-btns button{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
@media(max-width:1024px){.certs{grid-template-columns:repeat(3,1fr)}.brands{grid-template-columns:repeat(3,1fr)}.clients{grid-template-columns:1fr 1fr}.rv-slider{grid-auto-columns:calc((100% - 24px)/2)}}
@media(max-width:760px){.showroom{grid-template-columns:1fr 1fr;grid-template-rows:auto}.sr-big{grid-column:span 2;grid-row:auto;height:260px}.sr-s{height:200px}.sr-s:nth-of-type(4){grid-column:span 2}}
@media(max-width:560px){.certs,.brands,.brands.b3{grid-template-columns:1fr 1fr}.clients{grid-template-columns:1fr}.rv-slider{grid-auto-columns:88%}}
.range{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.range .rg{background:#fff;border:1px solid var(--line);padding:18px 20px;display:flex;flex-direction:column;gap:6px;transition:.25s}
.range .rg b{font-family:var(--serif);color:var(--navy);font-size:16px;font-weight:600}
.range .rg span{font-size:13px;color:#8a8f97}
.range .rg.on{border-left:3px solid var(--gold)}.range .rg.on span{color:var(--gold)}
.range .rg:hover{border-color:var(--gold);transform:translateY(-2px)}
.subtags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.subtags span{background:var(--bg);border:1px solid var(--line);padding:6px 14px;font-size:13px;color:var(--navy)}
.bg-soft .subtags span{background:#fff}
.idx-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.idx{background:#fff;border:1px solid var(--line);padding:24px}
.idx h3{font-size:18px;margin-bottom:10px;border-bottom:1px solid var(--line);padding-bottom:10px}
.idx ul{list-style:none;margin:0;padding:0}.idx li{padding:4px 0;font-size:14px}
.idx li a{color:var(--navy)}.idx li a:hover{color:var(--gold)}.idx li.soon{color:#a6abb3}
#nav .sub{max-height:80vh;overflow:auto}
@media(max-width:1000px){.range,.idx-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.range,.idx-grid{grid-template-columns:1fr}}
nav .has-mega{position:static}
header .container{position:relative}
nav .mega{position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 18px 40px rgba(0,0,0,.12);border-top:2px solid var(--gold);opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s;padding:28px 34px 0;z-index:60}
nav .has-mega:hover .mega{opacity:1;visibility:visible;transform:none}
.mega-in{display:grid;grid-template-columns:repeat(5,1fr);gap:8px 26px;max-height:62vh;overflow:auto}
.mcol{padding-bottom:16px}
.mcol a{display:block;font-size:13px;color:#59606b;padding:3px 0;border:0}
.mcol a:hover{color:var(--gold)}
.mcol a.mh{font-family:var(--serif);font-size:15px;font-weight:600;color:var(--navy);padding:0 0 6px;margin-bottom:6px;border-bottom:1px solid var(--line)}
.mega-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:14px 0;margin-top:6px;font-size:13px;color:#8a8f97}
.mega-foot a{color:var(--gold);font-weight:600;border:0;padding:0}
.idx-sub{font-size:12px;color:#8a8f97;margin:-4px 0 10px;line-height:1.7}.idx-sub a{color:var(--gold)}
.subtags a span:hover{border-color:var(--gold);color:var(--gold)}
@media(max-width:900px){nav .mega{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:6px 0 6px 16px;display:none}nav .has-mega:hover .mega{display:block}.mega-in{grid-template-columns:1fr 1fr;max-height:none}.mega-foot{display:none}}
.article .afig{margin:30px 0 34px}
.article .afig .img img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.article .afig figcaption{font-size:13px;color:#8a8f97;margin-top:10px;padding-left:12px;border-left:2px solid var(--gold)}
.article .afig figcaption a{color:var(--gold)}
.article a.ilink{color:var(--gold);border-bottom:1px dotted var(--gold)}
.inl-prod,.inl-read{margin:40px 0 0;padding:26px 28px;background:var(--soft,#f6f3ee);border-left:3px solid var(--gold)}
.inl-prod h3,.inl-read h3{font-size:20px;margin:0 0 16px}
.inl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.inl-grid a{background:#fff;border:1px solid var(--line);padding:12px 14px;display:flex;flex-direction:column;gap:4px}
.inl-grid a b{font-family:var(--serif);color:var(--navy);font-size:15px}.inl-grid a span{font-size:12px;color:var(--gold)}
.inl-grid a:hover{border-color:var(--gold)}
.inl-read{margin-top:16px}.inl-read ul{margin:0;padding-left:18px}.inl-read li{margin:6px 0}.inl-read a{color:var(--navy)}
.hcols{display:grid;grid-template-columns:repeat(5,1fr);gap:24px 28px;margin-top:10px}
.hc a{display:block;font-size:14px;color:#59606b;padding:3px 0}.hc a:hover{color:var(--gold)}
.hc a.hc-h{font-family:var(--serif);font-size:17px;font-weight:600;color:var(--navy);border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:8px}
.hot{margin-top:34px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;font-size:14px}
.hot a{border:1px solid var(--line);padding:6px 14px;color:var(--navy)}.hot a:hover{border-color:var(--gold);color:var(--gold)}
@media(max-width:900px){.inl-grid{grid-template-columns:1fr 1fr}.hcols{grid-template-columns:1fr 1fr}}
.article .art-faq{margin-top:18px}
.article .art-faq .faq-item{border-bottom:1px solid var(--line)}
.topbar a{color:inherit;margin-right:22px}.topbar a:hover{color:var(--gold)}
footer li a.js-wa,footer li a.js-mail{color:inherit}

/* real certificate documents */
.cert-docs{display:grid;grid-template-columns:repeat(7,1fr);gap:16px}
.cert-doc{background:#fff;border:1px solid var(--line);padding:12px 12px 16px;text-align:center;transition:.3s;display:block;color:inherit}
.cert-doc:hover{border-color:var(--gold);transform:translateY(-4px);box-shadow:0 14px 30px rgba(28,43,69,.08)}
.cert-doc .img{aspect-ratio:707/1000;overflow:hidden;background:#f4f2ee;margin-bottom:12px;border:1px solid #eee}
.cert-doc .img img{width:100%;height:100%;object-fit:cover;object-position:top}
.cert-doc h4{font-size:15px;margin-bottom:2px;line-height:1.3}.cert-doc b{display:block;font-size:12px;color:var(--gold);font-weight:600;margin-bottom:4px}.cert-doc p{font-size:12px;line-height:1.45;margin:0}
/* craftsmanship */
.crafts{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.craft{background:#fff;border:1px solid var(--line);overflow:hidden;transition:.3s}
.craft:hover{box-shadow:0 14px 30px rgba(28,43,69,.1);transform:translateY(-4px)}
.craft .img{aspect-ratio:4/3;overflow:hidden}.craft .img img{width:100%;height:100%;object-fit:cover;transition:.5s}.craft:hover .img img{transform:scale(1.05)}
.craft .ct{padding:18px 20px 22px}.craft h3{font-size:18px;margin-bottom:6px}.craft p{font-size:13.5px;margin:0}
@media(max-width:1024px){.cert-docs{grid-template-columns:repeat(4,1fr)}.crafts{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.cert-docs{grid-template-columns:repeat(2,1fr)}.crafts{grid-template-columns:1fr}}

.ex-grid{gap:26px}.ex-card .img{aspect-ratio:1/1;overflow:hidden}.ex-card .img img{width:100%;height:100%;object-fit:cover}.ex-card .meta{color:var(--gold);font-size:13px;font-weight:600;margin-bottom:6px}.ex-card h3{font-size:19px;line-height:1.35}.ex-card p{font-size:14px}

.gal img.pd-main{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.gal .pd-thumbs .img img{width:100%;height:100%;object-fit:cover}
.video-wrap{max-width:1000px;margin:0 auto;background:#111;box-shadow:0 16px 40px rgba(28,43,69,.14)}
.video-wrap video{display:block;width:100%;max-height:620px}

.badge-img .img.tall{aspect-ratio:auto;height:470px}.badge-img .img.tall img{width:100%;height:100%;object-fit:cover}@media(max-width:900px){.badge-img .img.tall{height:auto;aspect-ratio:4/3}}

.pager{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap}.pager button{min-width:42px;height:42px;padding:0 14px;border:1px solid var(--line);background:#fff;color:var(--navy);cursor:pointer;font-size:14px}.pager button.active{background:var(--navy);color:#fff;border-color:var(--navy)}.pager button:disabled{opacity:.4;cursor:default}.pager button:not(:disabled):hover{border-color:var(--gold)}

.slide-txt h2.h1{color:#fff;font-size:clamp(34px,4.6vw,60px);margin-bottom:20px}