*{box-sizing:border-box}
:root{--red:#c8102e;--red-dark:#9d0b22;--ink:#1b2328;--muted:#66757d;--line:#e2e7e9;--paper:#f5f7f8}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font:16px/1.65 "Inter","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.header{position:fixed;inset:0 0 auto;z-index:50;height:76px;display:flex;align-items:center;gap:28px;padding:0 4vw;background:rgba(255,255,255,.96);box-shadow:0 1px 0 rgba(0,0,0,.08);transition:height .25s}
.header.small{height:62px}
.logo{display:flex;align-items:center;gap:10px;white-space:nowrap}
.logo span{display:grid;place-items:center;width:44px;height:38px;background:var(--red);color:#fff;font-weight:900;letter-spacing:.06em}
.logo b{font-size:15px;letter-spacing:.08em}
.header nav{display:flex;gap:24px;margin-left:auto;font-size:13px}
.header nav a{color:#3b474d;position:relative;padding:6px 0}
.header nav a:after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--red);transition:right .25s}
.header nav a:hover:after{right:0}
.header-right{margin-left:auto;text-align:right;line-height:1.2;white-space:nowrap}
.hotline{display:block;color:var(--muted);font-size:10px;letter-spacing:.12em;text-transform:uppercase}
.phone{display:block;color:var(--red);font-weight:800;font-size:16px}
#menuBtn{display:none;background:none;border:0;font-size:24px;color:var(--ink)}
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px 7vw 90px;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('assets/hero.jpg') center/cover no-repeat;filter:saturate(.7)}
.hero-bg:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,20,26,.83) 0%,rgba(12,20,26,.58) 45%,rgba(12,20,26,.22) 100%)}
.hero-text{position:relative;z-index:2;max-width:820px}
.overline{color:var(--red);font-size:11px;font-weight:800;letter-spacing:.22em;text-transform:uppercase;margin:0 0 18px}
.overline.dark{color:var(--red)}
.hero .overline{color:#ff8a9a}
.hero h1{font-size:clamp(44px,6.4vw,86px);line-height:1.02;letter-spacing:-.045em;margin:0;font-weight:300}
.hero h1 strong{font-weight:800}
.sub{max-width:620px;color:#d6e0e5;font-size:18px;margin:26px 0 0}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.btn{display:inline-block;background:var(--red);color:#fff;padding:14px 26px;font-weight:700;font-size:14px;border:1px solid var(--red);cursor:pointer}
.btn:hover{background:var(--red-dark)}
.btn.line{background:transparent;border-color:rgba(255,255,255,.55)}
.btn.line:hover{background:rgba(255,255,255,.1)}
.hero-badge{position:absolute;right:5vw;bottom:120px;z-index:2;border-left:3px solid var(--red);padding-left:14px}
.hero-badge b{display:block;font-size:26px}
.hero-badge span{font-size:12px;color:#c9d5db;text-transform:uppercase;letter-spacing:.14em}
.scroll{position:absolute;left:7vw;bottom:28px;z-index:2;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#aebcc4;display:flex;gap:10px;align-items:center}
.applications{padding:92px 4vw 80px;background:var(--paper)}
.app-head{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;max-width:1280px;margin:0 auto 38px}
.app-head h2,.about h2,.process h2,.catalog h2,.quality h2,.contact h2{font-size:clamp(30px,3.6vw,48px);line-height:1.08;letter-spacing:-.035em;margin:0}
.app-head>p{max-width:430px;color:var(--muted);font-size:14px;margin:0}
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:1280px;margin:0 auto}
.app-card{background:#fff;position:relative;overflow:hidden;transition:transform .25s,box-shadow .25s}
.app-card:hover{transform:translateY(-5px);box-shadow:0 22px 40px rgba(20,40,50,.12)}
.app-img{height:230px;background-size:cover;background-position:center;filter:saturate(.85)}
.a1{background-image:url('assets/hero.jpg')}
.a2{background-image:url('assets/factory.jpg')}
.a3{background-image:url('assets/energy.jpg')}
.a4{background-image:url('assets/design.jpg')}
.app-card.text-only{padding:26px 22px;border:1px solid #dbe2e5;display:flex;flex-direction:column;justify-content:space-between;min-height:210px}
.app-card.text-only:before{content:"";display:block;width:34px;height:3px;background:var(--red);margin-bottom:18px}
.app-card.text-only .app-copy{padding:0}
.app-copy{padding:20px}
.app-copy h3{font-size:17px;margin:0 0 6px}
.app-copy p{color:var(--muted);font-size:13px;margin:0 0 12px}
.app-copy span{color:var(--red);font-size:12px;font-weight:700}
.about{display:grid;grid-template-columns:1.05fr 1fr;gap:0;max-width:1280px;margin:0 auto;padding:100px 4vw;align-items:center}
.about-media{position:relative}
.about-media:after{content:"";position:absolute;right:-12px;bottom:-12px;width:55%;height:55%;border:10px solid var(--red);z-index:-1}
.about-copy{padding-left:7vw}
.about-copy .lead{font-size:19px;color:#2d3b42;margin:20px 0 12px}
.about-copy p{color:var(--muted)}
.about-stats{display:flex;gap:34px;margin:30px 0;flex-wrap:wrap}
.about-stats div{border-left:2px solid var(--red);padding-left:12px}
.about-stats b{display:block;font-size:24px;line-height:1.1}
.about-stats span{font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.dark-btn{background:var(--red)}
.process{padding:80px 4vw;background:#101a20;color:#fff}
.process-head{max-width:1280px;margin:0 auto 40px;display:flex;justify-content:space-between;align-items:flex-end;gap:20px}
.process-head .overline{color:#ff8a9a}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#2a3942;max-width:1280px;margin:0 auto}
.step{background:#101a20;padding:28px}
.step span{color:var(--red);font:12px ui-monospace,monospace;letter-spacing:.18em}
.step h3{font-size:20px;margin:30px 0 8px}
.step p{color:#9fb0ba;font-size:13px;margin:0}
.catalog{padding:96px 4vw;max-width:1280px;margin:0 auto}
.catalog-head{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;margin-bottom:30px}
.catalog-head>p{max-width:420px;color:var(--muted);font-size:14px;margin:0}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.filter{border:1px solid var(--line);background:#fff;color:var(--muted);padding:8px 15px;cursor:pointer;font-size:12px}
.filter.on,.filter:hover{border-color:var(--red);color:var(--red)}
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:16px}
.p-card{border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;transition:box-shadow .25s,transform .25s}
.p-card:hover{box-shadow:0 16px 34px rgba(20,40,50,.08);transform:translateY(-3px)}
.p-visual{height:170px;display:grid;place-items:center;background:linear-gradient(135deg,#f4f6f7,#e8edef);position:relative}
.p-visual:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,transparent 0 16px,rgba(200,16,46,.035) 16px 17px)}
.p-visual svg{width:62%;height:62%;position:relative}
.p-visual span{position:absolute;top:10px;left:10px;font-size:10px;color:var(--red);letter-spacing:.12em;text-transform:uppercase}
.p-body{padding:18px;display:flex;flex-direction:column;flex:1}
.p-body h3{font-size:17px;margin:0 0 8px}
.p-body p{color:var(--muted);font-size:13px;margin:0 0 12px}
.p-body ul{list-style:none;padding:0;margin:0 0 16px;font-size:12px;color:#4f6068}
.p-body li{padding:4px 0;border-top:1px solid var(--line)}
.text-btn{margin-top:auto;border:0;background:none;padding:0;color:var(--red);font-weight:700;font-size:13px;cursor:pointer;text-align:left}
.quality{padding:50px 4vw;background:var(--red);color:#fff;display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:center}
.quality .overline{color:#ffd1d8}
.quality ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.quality li{padding-left:20px;position:relative;font-size:14px}
.quality li:before{content:"✓";position:absolute;left:0;color:#fff}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:50px;padding:90px 7vw;background:var(--paper)}
.contact-info{display:grid;gap:8px;margin-top:24px;font-size:15px}
.contact-info a{color:var(--red);font-weight:700}
.contact-info span{color:var(--muted);font-size:13px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:#fff;padding:26px;border-top:4px solid var(--red)}
.f{display:flex;flex-direction:column;gap:5px}
.f.full{grid-column:1/-1}
label{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
input,textarea{width:100%;border:1px solid var(--line);padding:11px;font:inherit;font-size:14px}
input:focus,textarea:focus{outline:1px solid var(--red);border-color:var(--red)}
.form .btn{grid-column:1/-1;justify-self:start}
.note{grid-column:1/-1;margin:0;color:var(--muted);font-size:11px}
footer{background:#0d151a;color:#c8d4da;padding:52px 4vw 20px}
.foot-top{display:flex;justify-content:space-between;gap:30px;max-width:1280px;margin:0 auto;flex-wrap:wrap}
.foot-top b{color:#fff;letter-spacing:.12em}
.foot-top p{color:#82929b;font-size:13px;max-width:430px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;font-size:11px;letter-spacing:.06em}
.foot-links a:hover{color:#fff}
.foot-bottom{max-width:1280px;margin:30px auto 0;padding-top:16px;border-top:1px solid #243239;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:11px;color:#73838c}
.reveal{opacity:1;transform:none}
.p-card.is-hidden{display:none}
@media(max-width:1024px){.header nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:10px 4vw;box-shadow:0 8px 20px rgba(0,0,0,.1)}.header nav.open{display:flex}.header nav a{padding:12px 0;border-bottom:1px solid var(--line)}.header-right{margin-left:auto}#menuBtn{display:inline-block;margin-left:8px}.hotline{display:none}.app-grid{grid-template-columns:1fr 1fr}.about{grid-template-columns:1fr;padding:70px 5vw}.about-copy{padding:36px 0 0}.steps{grid-template-columns:1fr 1fr}.contact{grid-template-columns:1fr;padding:70px 5vw}.quality{grid-template-columns:1fr}.process-head,.catalog-head,.app-head{flex-direction:column;align-items:flex-start}}
@media(max-width:620px){.header{height:64px}.logo b{font-size:12px}.logo span{width:36px;height:32px}.phone{font-size:13px}.hero{min-height:88vh;padding:100px 6vw 80px}.hero h1{font-size:44px}.hero-badge{display:none}.app-grid{grid-template-columns:1fr}.app-head h2,.about h2,.process h2,.catalog h2,.quality h2,.contact h2{font-size:32px}.steps{grid-template-columns:1fr}.form{grid-template-columns:1fr;padding:20px}.about-media:after{display:none}.quality ul{grid-template-columns:1fr}.catalog{padding:70px 5vw}.foot-links{gap:12px}}

section[id],.catalog{scroll-margin-top:86px}

.facility{padding:90px 4vw;background:#fff}
.facility-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;max-width:1280px;margin:0 auto 34px}
.facility-head h2{font-size:clamp(30px,3.6vw,48px);line-height:1.08;letter-spacing:-.035em;margin:0}
.facility-head>p{max-width:430px;color:var(--muted);font-size:14px;margin:0}
.facility-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:14px;max-width:1280px;margin:0 auto}
.facility-card{position:relative;margin:0;min-height:360px;overflow:hidden;background:#dbe2e5}
.facility-card img{width:100%;height:100%;min-height:360px;object-fit:cover;display:block;filter:saturate(.86);transition:transform .6s ease}
.facility-card:hover img{transform:scale(1.035)}
.facility-card:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(10,22,28,.86));pointer-events:none}
.facility-card figcaption{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff}
.facility-card span{color:#ff8a9a;font:11px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.18em}
.facility-card b{display:block;margin:5px 0 2px;font-size:17px;line-height:1.2}
.facility-card small{color:#c9d7dd;font-size:12px;line-height:1.4}
@media(max-width:1024px){.facility{padding:70px 5vw}.facility-head{flex-direction:column;align-items:flex-start}.facility-grid{grid-template-columns:1fr 1fr}.facility-card:first-child{grid-column:1/-1}}
@media(max-width:620px){.facility-grid{grid-template-columns:1fr}.facility-card:first-child{grid-column:auto}.facility-card,.facility-card img{min-height:250px}}
.facility-grid.quad{grid-template-columns:1.3fr 1fr 1fr 1fr}
.facility-grid.quad .facility-card:first-child{grid-column:auto}
@media(max-width:1024px){.facility-grid.quad{grid-template-columns:1fr 1fr}.facility-grid.quad .facility-card:first-child{grid-column:auto}}
@media(max-width:620px){.facility-grid.quad{grid-template-columns:1fr}}

@media(max-width:620px){.header{gap:10px}.header-right .phone{display:none}.logo b{letter-spacing:.04em}}