:root{--ink:#0f1f2e;--ink2:#1b3247;--steel:#51626f;--muted:#5b6b78;--line:#dfe4e8;--bg:#f4f6f8;--white:#fff;--accent:#ad4814;--accent2:#8f3a0f;--blue:#1f5f8b;--max:1240px;--r:6px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.6 var(--font);color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}a{color:var(--blue)}a:hover{color:var(--accent)}h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0 0 .5em}h2{font-size:clamp(24px,3vw,34px)}h3,.h3{font-size:18px}p{margin:0 0 1em}
.wrap{width:min(100% - 40px,var(--max));margin:0 auto}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;z-index:100}.skip:focus{left:10px}
:focus-visible{outline:3px solid #f0a35e;outline-offset:2px}
.muted{color:var(--muted)}.small{font-size:13px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin:0 0 10px}.eyebrow.light{color:#f2a46f}.light{color:#c9d5df}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r);font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:15px;line-height:1.2}
.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:var(--accent2);color:#fff}.btn-primary{background:var(--ink);color:#fff}.btn-primary:hover{background:var(--ink2);color:#fff}
.btn-outline{border-color:var(--ink);color:var(--ink)}.btn-outline:hover{background:var(--ink);color:#fff}.btn-ghost-light{border-color:#ffffff80;color:#fff}.btn-ghost-light:hover{background:#fff;color:var(--ink)}.btn-block{width:100%}
.link{font-weight:600;text-decoration:none;white-space:nowrap}
/* top & header */
.topbar{background:var(--ink);color:#b9c7d3;font-size:13px}.topbar-in{display:flex;justify-content:space-between;gap:16px;padding:7px 0}.topbar a{color:#dbe5ec;text-decoration:none}.topbar .sep{opacity:.4}.topbar .ph{font-size:12px}.lang{margin-left:12px;color:#fff}.lang .muted{color:#8ea1b1}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}.hdr{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink)}.logo-mark{background:var(--ink);color:#fff;font-weight:800;font-size:18px;padding:6px 8px;border-radius:4px;letter-spacing:.02em}.logo-txt{font-weight:800;font-size:20px;display:flex;flex-direction:column;line-height:1.05}.logo-txt small{font-size:10px;font-weight:500}.logo--light{color:#fff}.logo--light .logo-mark{background:var(--accent)}
.site-nav{display:flex;align-items:center;gap:20px;margin-left:auto}.nav-list{display:flex;list-style:none;margin:0;padding:0;gap:4px}.nav-list a{display:block;padding:10px 12px;text-decoration:none;color:var(--ink);font-weight:600;font-size:15px;border-radius:4px}.nav-list a:hover,.nav-list a[aria-current]{color:var(--accent);background:var(--bg)}
.mega{display:none}.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:4px;width:44px;height:44px;cursor:pointer}
.bars,.bars:before,.bars:after{display:block;width:20px;height:2px;background:var(--ink);position:relative;margin:auto;transition:.2s}.bars:before,.bars:after{content:"";position:absolute}.bars:before{top:-6px}.bars:after{top:6px}
.nav-toggle[aria-expanded=true] .bars{background:transparent}.nav-toggle[aria-expanded=true] .bars:before{top:0;transform:rotate(45deg)}.nav-toggle[aria-expanded=true] .bars:after{top:0;transform:rotate(-45deg)}
/* hero */
.hero{background:linear-gradient(115deg,#0b1824 0%,#13293b 55%,#1d3a52 100%);color:#fff;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff0d 1px,transparent 1px),linear-gradient(90deg,#ffffff0d 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,transparent,#000 60%)}
.hero-in{position:relative;padding:84px 0 56px}.hero h1{font-size:clamp(32px,4.6vw,56px);max-width:860px;letter-spacing:-.02em}.hero .lead{font-size:18px;color:#c9d5df;max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0}.hero-search{display:flex;max-width:620px;background:#fff;border-radius:var(--r);padding:5px}.hero-search input{flex:1;border:0;padding:10px 14px;font-size:15px;min-width:0;border-radius:4px}
.hero-stats{list-style:none;padding:0;margin:48px 0 0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #ffffff26}.hero-stats li{padding:20px 0 0}.hero-stats b{display:block;font-size:30px;color:#fff}.hero-stats span{color:#9fb2c2;font-size:14px}
.phero{background:var(--bg);border-bottom:1px solid var(--line);padding:36px 0 40px}.phero h1{font-size:clamp(28px,4vw,44px)}.phero .lead{font-size:17px;color:var(--muted);max-width:780px;margin:0}
.phero--cat{background:linear-gradient(115deg,#0b1824,#1d3a52);color:#fff;border:0}.phero--cat .lead{color:#c9d5df}.phero--cat .crumbs a,.phero--cat .crumbs li{color:#b9c7d3}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0 0 18px;font-size:13px;color:var(--muted)}.crumbs li+li:before{content:"/";margin-right:6px;opacity:.5}.crumbs a{color:var(--muted)}
/* sections */
.sec{padding:72px 0}.sec--tight{padding:44px 0}.sec--alt{background:var(--bg)}.sec--dark{background:var(--ink);color:#fff}.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:30px}.sec-head h2{margin:0;max-width:720px}.sub{color:var(--muted);max-width:720px;margin:10px 0 0}.sec--dark .sub{color:#b9c7d3}
.cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.ccard{position:relative;display:flex;flex-direction:column;padding:24px;border:1px solid var(--line);border-radius:var(--r);text-decoration:none;color:var(--ink);background:#fff;transition:.2s;min-height:250px}.ccard:hover{border-color:var(--accent);box-shadow:0 12px 30px #0f1f2e14;transform:translateY(-2px);color:var(--ink)}
.ccard-n{position:absolute;right:18px;top:16px;font-size:13px;color:#66737d;font-weight:700}.ico{width:34px;height:34px;color:var(--accent);margin-bottom:16px;flex:none}.ccard p{color:var(--muted);font-size:14px;flex:1}.ccard-c{font-size:13px;font-weight:700;color:var(--blue)}
.chips{display:flex;flex-wrap:wrap;gap:10px}.chip{padding:8px 14px;border:1px solid #c9d2da;border-radius:40px;background:#fff;text-decoration:none;color:var(--ink);font-weight:600;font-size:14px}.chip:hover{border-color:var(--accent);color:var(--accent)}
.agrid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.atile{background:#fff;padding:24px;text-decoration:none;color:var(--ink)}.atile:hover{background:var(--bg);color:var(--ink)}.atile p{font-size:14px;color:var(--muted)}.atile span{font-size:12px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.06em}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}.steps--6{grid-template-columns:repeat(3,1fr)}.steps li{border-top:2px solid var(--accent);padding-top:18px}.step-n{font-weight:800;color:var(--accent);font-size:14px}.steps h3{margin:8px 0}.steps p{font-size:14px;color:inherit;opacity:.82}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}.split--small{margin-top:40px}
.checklist{list-style:none;counter-reset:c;padding:0;margin:0;display:grid;gap:12px}.checklist li{counter-increment:c;display:grid;grid-template-columns:44px 1fr;gap:2px 14px;padding:16px;border:1px solid var(--line);border-radius:var(--r);color:var(--muted);font-size:14px}.checklist li:before{content:counter(c,decimal-leading-zero);grid-row:span 2;font-weight:800;color:var(--accent);font-size:20px}.checklist b{color:var(--ink);font-size:16px}
.qgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.qgrid>div{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px}.qgrid p{font-size:14px;color:var(--muted);margin:0}.sec .qgrid .media{margin:-22px -22px 16px;border-radius:var(--r) var(--r) 0 0}
.ngrid,.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
/* media placeholder */
.media{position:relative;aspect-ratio:16/10;display:grid;place-items:center;background:linear-gradient(135deg,#e7ecf0,#cfd8df);overflow:hidden;color:#7d8f9c}
.media:before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(45deg,#ffffff38 0 1px,transparent 1px 14px)}
.media--titanium-superalloys{background:linear-gradient(135deg,#dfe5ea,#b9c4cd)}.media--marine-specialty-steel{background:linear-gradient(135deg,#d6dee6,#a9b8c5)}.media--composites{background:linear-gradient(135deg,#d9dcdf,#9ea6ad)}.media--metals-coating-powders{background:linear-gradient(135deg,#e9e3da,#c9bba7)}.media--technical-ceramics{background:linear-gradient(135deg,#f1eee8,#d8d1c4)}.media--power-equipment{background:linear-gradient(135deg,#dfe7ef,#b1c3d4)}.media--flow-instruments{background:linear-gradient(135deg,#e1eae8,#b6c9c5)}.media--equipment-manufacturing{background:linear-gradient(135deg,#e6e4e1,#bdb7b0)}
.media-ico{width:64px;height:64px;position:relative;opacity:.8}.media-tag{position:absolute;left:10px;bottom:10px;background:#ffffffe6;color:#41525f;font-size:11px;font-weight:600;padding:3px 8px;border-radius:3px;letter-spacing:.04em;text-transform:uppercase}
/* cards */
.pcard,.ncard{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;transition:.2s}.pcard:hover,.ncard:hover{box-shadow:0 12px 30px #0f1f2e14;border-color:#b8c4ce}.pcard-link,.ncard a{display:flex;flex-direction:column;height:100%;text-decoration:none;color:var(--ink)}
.pcard-body,.ncard-b{padding:20px;display:flex;flex-direction:column;flex:1}.pcard-cat{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:6px}.pcard h3{font-size:18px}.pcard p,.ncard p{font-size:14px;color:var(--muted)}
.pcard-spec{margin:auto 0 12px;padding:12px;background:var(--bg);border-radius:4px;font-size:13px}.pcard-spec dt{font-weight:700;color:var(--steel);font-size:11px;text-transform:uppercase;letter-spacing:.06em}.pcard-spec dd{margin:2px 0 0}.more{font-weight:700;color:var(--blue);font-size:14px}
.badge{align-self:flex-start;background:#fff3c4;color:#6b4a00;font-size:11px;font-weight:700;padding:2px 8px;border-radius:3px;margin-bottom:8px;text-transform:uppercase;letter-spacing:.06em}
/* product index */
.psearch{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:28px}.psearch label{font-weight:700;display:block;margin-bottom:8px}.psearch input{width:100%;padding:13px 14px;border:1px solid #b9c4cd;border-radius:4px;font-size:16px}.psearch p{margin:8px 0 0;font-size:14px}
.catnav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.catnav a{font-size:13px;font-weight:600;padding:6px 12px;border:1px solid var(--line);border-radius:4px;text-decoration:none;color:var(--ink)}.catnav a:hover{border-color:var(--accent)}
.pcat{padding:28px 0;border-top:1px solid var(--line)}.pcat-h{display:flex;gap:16px;align-items:flex-start}.pcat-h h2{font-size:22px;margin:0 0 4px}.pcat-h h2 a{color:var(--ink);text-decoration:none}.pcat-h p{color:var(--muted);margin:0 0 14px}
.plist{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.plist a{display:block;padding:14px 16px;border:1px solid var(--line);border-radius:4px;text-decoration:none;color:var(--ink);height:100%}.plist a:hover{border-color:var(--accent);background:#fffaf6}.plist b{display:block}.plist span{display:block;font-size:13px;color:var(--muted)}.plist--results{margin-top:12px}
/* tables */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:12px}.tbl{width:100%;border-collapse:collapse;font-size:15px}.tbl th,.tbl td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}.tbl thead th{background:var(--ink);color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.05em}.tbl tbody tr:last-child>*{border-bottom:0}.tbl--spec th{width:34%;background:var(--bg);font-weight:600}.tbl tbody tr:hover td{background:#fafbfc}
.note{font-size:13px;color:var(--muted)}.notice{background:#fff8e1;border-left:4px solid #d9a400;padding:12px 16px;font-size:14px;border-radius:0 4px 4px 0}
.ticks{list-style:none;padding:0;margin:0 0 28px}.ticks li{padding:6px 0 6px 26px;position:relative}.ticks li:before{content:"";position:absolute;left:2px;top:14px;width:12px;height:7px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}.ticks.cols{columns:2;column-gap:32px}.ticks li{break-inside:avoid}
/* product detail */
.pd{padding:28px 0 48px;background:var(--bg);border-bottom:1px solid var(--line)}.pd-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}.pd-media .media{border-radius:var(--r);aspect-ratio:4/3}.pd h1{font-size:clamp(26px,3.4vw,40px)}.pd .lead{font-size:17px;color:var(--muted)}
.pd-key{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:8px}.pd-key li{display:grid;grid-template-columns:160px 1fr;gap:12px;background:#fff;border:1px solid var(--line);padding:10px 14px;border-radius:4px;font-size:14px}.pd-key span{color:var(--muted)}
.pd-body{display:grid;grid-template-columns:1fr 340px;gap:48px;align-items:start}.pd-body h2{font-size:24px;margin-top:8px}.pd-aside{position:sticky;top:96px;display:grid;gap:16px}
.box{border:1px solid var(--line);border-radius:var(--r);padding:22px;background:#fff}.box--alt{background:var(--bg)}.box p{font-size:14px;color:var(--muted)}
/* applications */
.apps{display:grid;gap:0}.app{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;padding:32px 0;border-bottom:1px solid var(--line);scroll-margin-top:90px}.app p{color:var(--muted)}.app .mats{font-size:13px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.06em}
.app-links{list-style:none;padding:0;margin:0;display:grid;gap:8px}.app-links a{display:flex;align-items:center;gap:12px;padding:12px 16px;border:1px solid var(--line);border-radius:4px;text-decoration:none;color:var(--ink);font-weight:600}.app-links a:hover{border-color:var(--accent)}.app-links .ico{width:24px;height:24px;margin:0}
.factbox{background:var(--bg);border:1px solid var(--line);border-radius:var(--r);padding:24px}.factbox dl,.cdl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:10px 18px;font-size:14px}.factbox dt,.cdl dt{font-weight:700;color:var(--steel)}.factbox dd,.cdl dd{margin:0}
.certs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}.cert{border:1px dashed #b9c4cd;border-radius:var(--r);padding:28px 12px;text-align:center;background:#fff}
.article{max-width:780px}
/* contact */
.contact{display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:start}.rfq{display:grid;gap:16px}.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}.f label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.f input,.f select,.f textarea{width:100%;padding:12px;border:1px solid #9fadb8;border-radius:4px;font:inherit;background:#fff}.f input:focus,.f select:focus,.f textarea:focus{border-color:var(--blue);outline:2px solid #1f5f8b33}
.f--check{display:flex;gap:10px;align-items:flex-start}.f--check input{width:20px;height:20px;margin-top:2px;flex:none}.f--check label{font-weight:400}
.f [aria-invalid=true]{border-color:#b42318;background:#fff6f5}.form-msg{font-weight:600;margin:0}.form-msg.err{color:#b42318}.form-msg.ok{color:#1a7f37}
.contact-side{display:grid;gap:16px}.mini{padding-left:20px;margin:0;font-size:14px}details{border-top:1px solid var(--line);padding:10px 0}details summary{cursor:pointer;font-weight:600;font-size:14px}details p{margin:8px 0 0}
/* cta + footer */
.cta-band{background:var(--accent);color:#fff}.cta-in{display:flex;justify-content:space-between;align-items:center;gap:32px;padding:48px 0}.cta-band h2{margin:0 0 8px}.cta-band p{margin:0;color:#ffe6d6;max-width:640px}.cta-band .eyebrow{color:#ffd2b5}.cta-actions{display:flex;gap:12px;flex-wrap:wrap}.cta-band .btn-accent{background:var(--ink)}.cta-band .btn-accent:hover{background:#000}
.site-footer{background:#0a1520;color:#aebdc9;font-size:14px}.ft{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding:56px 0 36px}.ft h3{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.1em}.ft ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}.ft a{color:#cfdae3;text-decoration:none}.ft a:hover{color:#fff}.ft-about{margin-top:16px;line-height:1.9}
.ft-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff1a;padding:18px 0 28px;font-size:12px;color:#8396a5}
/* responsive */
@media (max-width:1100px){.cgrid,.agrid,.qgrid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(3,1fr)}.nav-list a{padding:10px 8px;font-size:14px}}
@media (max-width:960px){
 .nav-toggle{display:block}.site-nav{display:none;position:absolute;left:0;right:0;top:72px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 20px 24px;box-shadow:0 20px 30px #0f1f2e22;max-height:calc(100vh - 72px);overflow:auto}
 .site-nav.open{display:flex}.nav-list{flex-direction:column}.nav-list a{padding:14px 4px;border-bottom:1px solid var(--line);border-radius:0;font-size:16px}
 .mega{display:block}.mega ul{list-style:none;padding:8px 0 0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:4px}.mega a{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--ink);text-decoration:none;padding:8px 4px}.mega .ico{width:20px;height:20px;margin:0}.nav-cta{margin-top:12px}
 .pd-grid,.pd-body,.contact,.split,.app{grid-template-columns:1fr;gap:28px}.pd-aside{position:static}.ngrid,.pgrid{grid-template-columns:repeat(2,1fr)}.ft{grid-template-columns:1fr 1fr}.cta-in{flex-direction:column;align-items:flex-start}}
@media (max-width:640px){
 .topbar-r{display:none}.hdr{height:64px}.site-nav{top:64px}.sec{padding:48px 0}.hero-in{padding:48px 0 36px}.hero .lead{font-size:16px}
 .hero-stats{grid-template-columns:1fr 1fr;margin-top:28px}.hero-stats b{font-size:24px}.cgrid,.agrid,.qgrid,.ngrid,.pgrid,.plist,.frow,.certs{grid-template-columns:1fr}.steps,.steps--6{grid-template-columns:1fr}
 .sec-head{flex-direction:column;align-items:flex-start}.ccard{min-height:0}.ticks.cols{columns:1}.pd-key li{grid-template-columns:1fr;gap:2px}.ft{grid-template-columns:1fr}.ft-bottom{flex-direction:column}.hero-search .btn{padding:10px 14px}.mega ul{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.sec--dark .step-n,.sec--dark .steps li{border-color:#f2a46f}.sec--dark .step-n{color:#f2a46f}.phero--cat .eyebrow{color:#f2a46f}
.cta-band .eyebrow.light{color:#fff}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center;padding:64px 0}.hero--products h1{font-size:clamp(30px,4.2vw,50px)}.hero--products .hero-search{margin-top:24px}
.hero-cats{background:#ffffff0f;border:1px solid #ffffff26;border-radius:var(--r);padding:18px}.hero-cats-t{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#f2a46f;margin:0 0 8px}
.hero-cats ul{list-style:none;margin:0;padding:0;display:grid}.hero-cats a{display:flex;align-items:center;gap:12px;padding:10px 8px;color:#fff;text-decoration:none;font-weight:600;font-size:15px;border-bottom:1px solid #ffffff1a;border-radius:4px}.hero-cats li:last-child a{border-bottom:0}.hero-cats a:hover{background:#ffffff1a;color:#fff}.hero-cats .ico{width:22px;height:22px;margin:0;color:#f2a46f}
.topbar-r a{margin:0 2px}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr;gap:28px;padding:44px 0}}
@media (max-width:640px){.hero-cats ul{grid-template-columns:1fr 1fr}.hero-cats a{font-size:13px;gap:8px;padding:8px 4px;border-bottom:0}}

/* ================= v3 premium theme ================= */
@font-face{font-family:"Inter";src:url(/assets/fonts/inter-latin-var.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
:root{--ink:#0d1117;--ink2:#1a222c;--steel:#4a5561;--muted:#5a6470;--line:#e4e1db;--bg:#f5f4f1;--accent:#9a4a1c;--accent2:#7e3c16;--blue:#1d4f73;--max:1280px;--r:2px;
 --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif}
body{font-feature-settings:"cv11","ss01";letter-spacing:-.003em;color:var(--ink)}
h1,h2,h3{font-weight:600;letter-spacing:-.022em}h2{font-size:clamp(28px,3.4vw,44px);line-height:1.1}h3{font-weight:600}
.eyebrow{font-size:11.5px;font-weight:600;letter-spacing:.2em;color:var(--accent)}.eyebrow.light{color:#d9b39a}
.btn{border-radius:var(--r);padding:14px 26px;font-weight:600;letter-spacing:.01em;transition:background .25s,color .25s,border-color .25s}
.btn-light{background:#fff;color:var(--ink)}.btn-light:hover{background:#e9e6e1;color:var(--ink)}
.btn-ghost-light{border:1px solid #ffffff73}.btn-outline{border:1px solid var(--ink)}
.topbar{background:#07090c;font-size:12.5px}.site-header{background:#ffffffeb;backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid #00000012}
.hdr{height:76px}.logo-mark{border-radius:2px;background:var(--ink)}.nav-list a{font-weight:500;letter-spacing:.005em;color:var(--ink2)}.nav-list a:hover,.nav-list a[aria-current]{background:none;color:var(--accent)}
.sec{padding:96px 0}.sec--lg{padding:120px 0}.sec--tight{padding:56px 0}.sec-head{margin-bottom:48px}.sub{font-size:17px;line-height:1.65}
/* hero */
.hero3{position:relative;color:#fff;background:#0b0e12;overflow:hidden;min-height:clamp(560px,calc(100vh - 110px),820px);display:flex;flex-direction:column;justify-content:flex-end}
.hero3-bg,.cat-hero-bg{position:absolute;inset:0;display:block}.hero3-bg img,.cat-hero-bg img{width:100%;height:100%;object-fit:cover;object-position:70% 50%}
.hero3-shade{position:absolute;inset:0;background:linear-gradient(90deg,#07090cf2 0%,#07090cc4 38%,#07090c33 75%,#07090c1a),linear-gradient(0deg,#07090ce6 0%,transparent 40%)}
.hero3-in{position:relative;padding:96px 0 56px;max-width:var(--max)}.hero3 h1{font-size:clamp(36px,4.8vw,68px);line-height:1.03;letter-spacing:-.035em;max-width:900px;margin-bottom:24px;font-weight:600}
.hero3 .lead{font-size:clamp(16px,1.5vw,19px);line-height:1.65;color:#cfd5db;max-width:640px}
.hero3 .hero-search{margin-top:36px;max-width:600px;background:#ffffff14;border:1px solid #ffffff38;border-radius:var(--r);padding:6px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.hero3 .hero-search input{background:transparent;color:#fff;font-size:16px}.hero3 .hero-search input::placeholder{color:#aab3bc}
.hero3-strip{position:relative;border-top:1px solid #ffffff26;background:#07090c8c;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.hero3-strip ul{list-style:none;margin:0 auto;padding:0;display:grid;grid-template-columns:repeat(8,1fr)}
.hero3-strip a{display:flex;flex-direction:column;gap:4px;padding:18px 14px 20px;color:#e6e9ec;text-decoration:none;font-size:13px;font-weight:500;line-height:1.3;border-left:1px solid #ffffff1a;height:100%;transition:background .25s}
.hero3-strip li:first-child a{border-left:0}.hero3-strip a:hover{background:#ffffff14;color:#fff}.hs-n{font-size:11px;color:#d9b39a;letter-spacing:.12em}
/* category cards with images */
.cgrid--img{gap:28px}.cgrid--img .ccard{padding:0;border:0;background:transparent;min-height:0}.cgrid--img .ccard:hover{box-shadow:none;transform:none}
.ccard-img{aspect-ratio:4/3;overflow:hidden;background:#d9d6d0}.ccard-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.ccard:hover .ccard-img img{transform:scale(1.045)}.ccard-b{padding:20px 0 0;position:relative}.cgrid--img .ccard-n{position:static;display:block;font-size:11.5px;letter-spacing:.16em;color:var(--accent);margin-bottom:8px}
.cgrid--img h3{font-size:19px;margin-bottom:8px}.cgrid--img .ccard p{font-size:14.5px;line-height:1.6}.ccard-c{color:var(--ink);font-weight:600;font-size:13.5px;border-bottom:1px solid var(--ink);padding-bottom:2px}
/* product cards refined */
.pcard,.ncard{border-radius:var(--r);border-color:var(--line)}.pcard:hover{box-shadow:0 18px 40px #0d11170f;border-color:#cfcac2}
.media{background:linear-gradient(160deg,#e9e7e3,#d6d2cb)}.media:before{background-image:repeating-linear-gradient(135deg,#ffffff2e 0 1px,transparent 1px 18px)}
.media-ico{opacity:.5;color:#6d6a65;width:52px;height:52px}.media-tag{background:transparent;color:#77736c;font-weight:500;letter-spacing:.14em;font-size:10.5px}
.pcard-body{padding:24px}.pcard h3{font-size:18.5px;line-height:1.3}.pcard-spec{background:var(--bg);border-radius:0}.more{color:var(--ink);font-size:13.5px}
.pgrid{gap:28px}
/* trust */
.trust{display:grid;grid-template-columns:1fr 1fr;background:#0b0e12;color:#fff;min-height:620px}
.trust-img{position:relative;overflow:hidden}.trust-img picture,.trust-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.trust-b{padding:96px clamp(24px,6vw,96px)}.trust-b h2{max-width:560px;margin-bottom:40px}
.tlist{list-style:none;padding:0;margin:0 0 40px;display:grid;grid-template-columns:1fr 1fr;gap:36px 40px}.tlist h3{font-size:16.5px;margin:10px 0 8px}.tlist p{color:#b6bec6;font-size:14.5px;line-height:1.6;margin:0}.t-n{font-size:11.5px;color:#d9b39a;letter-spacing:.16em}
.tlist li{border-top:1px solid #ffffff26;padding-top:16px}
/* misc refinement */
.chip{border-radius:2px;border-color:#d5d1ca;font-weight:500;padding:9px 16px}.agrid{background:var(--line);border-color:var(--line)}.atile{padding:32px 28px}.atile h3{font-size:17px}
.checklist li{border-radius:0;border-color:var(--line);padding:20px}
.phero{background:var(--bg);padding:64px 0}.phero h1{font-size:clamp(32px,4.4vw,56px);letter-spacing:-.03em}
.cat-hero{position:relative;color:#fff;background:#0b0e12;overflow:hidden;min-height:440px;display:flex;align-items:flex-end}.cat-hero-in{position:relative;padding:72px 0 64px}
.cat-hero h1{font-size:clamp(34px,5vw,64px);letter-spacing:-.035em;margin-bottom:16px}.cat-hero .lead{color:#cfd5db;font-size:18px;max-width:720px;margin:0}.cat-hero .crumbs a,.cat-hero .crumbs li{color:#c3cad1}
.pd{background:var(--bg);padding:40px 0 72px}.tbl thead th{background:var(--ink)}.box{border-radius:var(--r)}
.cta-band{background:var(--ink)}.cta-band p{color:#b6bec6}.cta-band .eyebrow.light{color:#d9b39a}.cta-band .btn-accent{background:var(--accent)}.cta-band .btn-accent:hover{background:var(--accent2)}
.cta-in{padding:72px 0}.site-footer{background:#07090c}
/* motion */
@media (prefers-reduced-motion:no-preference){
 .js .reveal.pre{opacity:0;transform:translateY(18px)}.js .reveal{transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
 .hero3-bg img{animation:heroZoom 14s ease-out both}@keyframes heroZoom{from{transform:scale(1.06)}to{transform:scale(1)}}
}
@media (max-width:1100px){.hero3-strip ul{grid-template-columns:repeat(4,1fr)}.hero3-strip li:nth-child(5) a{border-left:0}.hero3-strip li:nth-child(n+5) a{border-top:1px solid #ffffff1a}}
@media (max-width:960px){.trust{grid-template-columns:1fr}.trust-img{min-height:300px}.hdr{height:68px}.site-nav{top:68px}.sec--lg{padding:88px 0}}
@media (max-width:640px){.hero3{min-height:0}.hero3-in{padding:72px 0 40px}.hero3-strip ul{grid-template-columns:1fr 1fr}.hero3-strip li:nth-child(odd) a{border-left:0}.hero3-strip li:nth-child(n+3) a{border-top:1px solid #ffffff1a}.hero3-strip a{padding:14px 4px 14px 0;font-size:12.5px}
 .hero3-shade{background:linear-gradient(0deg,#07090cf5 0%,#07090cc7 55%,#07090c80)}.sec,.sec--lg{padding:64px 0}.tlist{grid-template-columns:1fr}.trust-b{padding:64px 20px}.cat-hero{min-height:360px}.hdr{height:64px}.site-nav{top:64px}.cgrid--img{gap:36px}}
/* v4: WhatsApp floating button */
.wa-fab{position:fixed;right:20px;bottom:20px;z-index:60;display:flex;align-items:center;gap:10px;height:56px;padding:0 20px 0 14px;border-radius:28px;background:#1f8f4e;color:#fff;text-decoration:none;font-weight:600;font-size:15px;box-shadow:0 10px 28px #0d111740,0 2px 6px #0d111726;transition:transform .2s,background .2s}
.wa-fab:hover{background:#18763f;color:#fff;transform:translateY(-2px)}.wa-fab:focus-visible{outline:3px solid #f0a35e;outline-offset:3px}
.site-footer{padding-bottom:88px}
@media (max-width:640px){.wa-fab{right:16px;bottom:16px;width:56px;padding:0;justify-content:center}.wa-fab-t{display:none}
 .hero3 .hero-search input{font-size:15px;padding:10px}.hero3 .hero-search .btn{padding:10px 16px;flex:none}}
@media print{.wa-fab{display:none}}
.wa-fab--hide{opacity:0;pointer-events:none;transform:translateY(12px)}.wa-fab{transition:transform .2s,background .2s,opacity .2s}
@media (prefers-reduced-motion:reduce){.wa-fab{transition:none}}
.media{aspect-ratio:4/3}.media--photo{background:#f4f3f1}.media--photo:before{display:none}.media--photo picture,.media--photo img{position:absolute;inset:0;width:100%;height:100%}.media--photo img{object-fit:cover;transition:transform .5s ease}.pcard-link:hover .media--photo img{transform:scale(1.03)}