:root{--red:#b6001b;--red2:#e20a2c;--ink:#0b0b0c;--paper:#f5f3ef;--line:#d9d5ce;--muted:#706d68;--max:1240px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.65}
body.menu-open{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit}
.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:#fff;padding:10px 16px}
.skip-link:focus{top:12px}
.site-header{height:82px;padding:0 max(24px,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between;position:absolute;top:0;left:0;right:0;z-index:20;color:#fff;border-bottom:1px solid #ffffff28}
.brand{display:flex;align-items:center;gap:12px}
.brand b{display:block;font-size:20px;letter-spacing:.12em;line-height:1}
.brand small{display:block;font-size:8px;letter-spacing:.13em;margin-top:6px;opacity:.62}
.brand-mark{display:flex;gap:4px;transform:skew(26deg)}
.brand-mark i{display:block;width:22px;height:10px;background:var(--red2)}
.nav{display:flex;align-items:center;gap:30px;font-size:14px}
.nav>a{opacity:.78;transition:.2s}
.nav>a:hover{opacity:1}
.nav .nav-cta{opacity:1;border:1px solid #ffffff80;padding:10px 18px}
.menu-toggle{display:none;background:none;border:0;color:#fff;width:46px;height:46px}
.menu-toggle span{display:block;width:22px;height:1px;background:currentColor;margin:7px auto}
.hero{position:relative;min-height:800px;height:100vh;max-height:980px;background:#0a0a0b;color:#fff;overflow:hidden;display:flex;align-items:center}
.hero-visual{position:absolute;inset:0 0 0 44%;overflow:hidden}
.hero-visual img{width:100%;height:100%;object-fit:cover;filter:saturate(.7) contrast(1.08)}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#080809 0%,#080809 37%,#080809de 55%,#08080936 78%,#08080966 100%),linear-gradient(0deg,#080809b8 0%,transparent 45%)}
.hero-content{position:relative;z-index:2;width:var(--max);margin:auto;padding:90px 24px 120px}
.eyebrow{margin:0 0 22px;font-size:12px;letter-spacing:.22em;font-weight:700}
.eyebrow.red{color:var(--red)}
.hero h1{font-size:clamp(52px,6.2vw,94px);line-height:1.04;letter-spacing:-.045em;margin:0;max-width:850px}
.hero h1 em,.contact h2 em{font-style:normal;color:var(--red2)}
.hero-copy{max-width:570px;color:#d2d0cc;font-size:17px;margin:26px 0 34px}
.hero-actions{display:flex;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:space-between;min-width:180px;padding:14px 18px;font-weight:700;font-size:14px}
.btn-primary{background:var(--red2)}
.btn-primary span{font-size:20px}
.btn-ghost{border:1px solid #ffffff4a}
.hero-stats{position:absolute;z-index:3;left:calc((100vw - var(--max))/2 + 24px);right:calc((100vw - var(--max))/2 + 24px);bottom:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #ffffff32}
.hero-stats>div{padding:22px 24px;border-right:1px solid #ffffff22}
.hero-stats strong{font-size:30px}
.hero-stats sup{font-size:14px}
.hero-stats span{display:block;color:#aaa;font-size:12px}
.scroll-cue{position:absolute;right:25px;bottom:170px;z-index:3;writing-mode:vertical-rl;font-size:9px;letter-spacing:.2em;color:#aaa}
.scroll-cue span{margin-top:12px;color:#fff}
.section{max-width:var(--max);margin:auto;padding:130px 24px}
.section-heading{display:grid;grid-template-columns:1.3fr .7fr;align-items:end;gap:80px;margin-bottom:64px}
.section-heading h2,.factory h2,.about h2,.contact h2{font-size:clamp(40px,5vw,70px);line-height:1.12;letter-spacing:-.04em;margin:0}
.section-heading>p{color:var(--muted);font-size:15px;margin:0 0 8px}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--line)}
.service-card{padding:28px 22px 34px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:300px;position:relative}
.service-card:nth-child(4n){border-right:0}
.service-card:nth-last-child(-n+4){border-bottom:0}
.content-loading{grid-column:1/-1;padding:42px 0;color:var(--muted)}
.service-card>span{font-size:11px;color:var(--muted)}
.service-card i{display:flex;width:54px;height:54px;border:1px solid var(--red);color:var(--red);border-radius:50%;align-items:center;justify-content:center;font-style:normal;font-weight:700;font-size:21px;margin:48px 0 26px}
.service-card h3{font-size:22px;margin:0 0 8px}
.service-card p{color:var(--muted);font-size:13px;margin:0}
.cases{padding-top:70px}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px}
.filters button{border:1px solid var(--line);background:transparent;padding:9px 17px;cursor:pointer;border-radius:100px;color:#57534e}
.filters button.active,.filters button:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:70px 22px}
.case-card.is-hidden{display:none}
.case-open{display:block;width:100%;padding:0;border:0;background:#ddd;overflow:hidden;position:relative;cursor:zoom-in;aspect-ratio:1.66}
.case-open img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case-open:hover img{transform:scale(1.025)}
.case-plus{position:absolute;right:16px;bottom:16px;width:44px;height:44px;border-radius:50%;background:#fff;display:grid;place-items:center;font-size:25px}
.case-card>div{padding:20px 4px 0}
.case-card>div>span{font-size:11px;color:var(--red);font-weight:700;letter-spacing:.08em}
.case-card h3{font-size:25px;margin:6px 0}
.case-card p{color:var(--muted);font-size:14px;margin:0;max-width:580px}
.case-featured{grid-column:1/-1;display:grid;grid-template-columns:1.35fr .65fr;gap:26px;align-items:end}
.case-featured .case-open{aspect-ratio:1.85}
.case-featured>div{padding:0 0 12px}
.case-featured h3{font-size:34px}
.case-note{text-align:right;color:#999;font-size:11px;margin:38px 0 0}
.factory{background:var(--ink);color:#fff;padding:120px max(24px,calc((100vw - var(--max))/2));display:grid;grid-template-columns:.72fr 1.28fr;gap:80px;align-items:center}
.factory-copy>p:not(.eyebrow){color:#aaa;max-width:500px}
.process{display:flex;align-items:center;flex-wrap:wrap;gap:9px;margin-top:35px;font-size:12px}
.process span{border:1px solid #ffffff28;padding:8px 10px}
.process b{color:var(--red2)}
.factory-images{display:grid;grid-template-columns:1.25fr .75fr;gap:10px}
.factory-images img{height:440px;width:100%;object-fit:cover}
.about{display:grid;grid-template-columns:.82fr 1.18fr;gap:100px;align-items:center}
.about-image{position:relative}
.about-image img{width:100%;height:600px;object-fit:cover}
.about-image span{position:absolute;right:-40px;bottom:40px;background:var(--red);color:#fff;padding:13px 19px;font-size:12px;letter-spacing:.08em}
.about-copy>p:not(.eyebrow){color:var(--muted);font-size:16px}
.about-copy ul{list-style:none;padding:0;margin:30px 0 0;border-top:1px solid var(--line)}
.about-copy li{padding:15px 0;border-bottom:1px solid var(--line)}
.contact{background:var(--red);color:#fff;padding:120px max(24px,calc((100vw - var(--max))/2));display:grid;grid-template-columns:1fr 1fr;gap:70px}
.contact-lead>p:last-child{max-width:580px;color:#f3b8c1}
.contact-cards{display:grid;gap:12px}
.contact-cards a{border:1px solid #ffffff65;padding:22px 26px;display:grid;grid-template-columns:1fr auto;align-items:end}
.contact-cards small{grid-column:1/-1;opacity:.7}
.contact-cards strong{font-size:28px;letter-spacing:.03em}
.contact-cards span{font-size:12px}
.contact-qr{grid-column:1/-1;display:flex;align-items:center;gap:28px;background:#fff;color:var(--ink);padding:20px;width:max-content;max-width:100%}
.contact-qr img{width:190px;height:auto;border:1px solid #eee}
.contact-qr b{display:block;font-size:24px}
.contact-qr span{display:block;color:var(--muted);font-size:13px;margin-top:7px}
.addresses{grid-column:1/-1;border-top:1px solid #ffffff4a;padding-top:25px;display:grid;grid-template-columns:1fr 1fr;gap:30px;font-size:13px}
.addresses p{margin:0}
.addresses b{display:block;margin-bottom:6px}
footer{background:#070708;color:#fff;padding:38px max(24px,calc((100vw - var(--max))/2));display:flex;align-items:center;justify-content:space-between}
footer p{color:#777;font-size:12px}
footer>a{font-size:12px}
.footer-links{display:flex;gap:24px;font-size:12px}
.mobile-call{display:none}
.lightbox{width:min(1100px,92vw);padding:0;border:0;background:#0b0b0c;color:#fff;box-shadow:0 30px 100px #0008}
.lightbox::backdrop{background:#000c;backdrop-filter:blur(6px)}
.lightbox img{width:100%;max-height:78vh;object-fit:contain}
.lightbox p{margin:0;padding:16px 20px}
.lightbox-close{position:absolute;right:12px;top:12px;border:0;width:42px;height:42px;border-radius:50%;background:#fff;color:#000;font-size:25px;cursor:pointer}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:48px;height:64px;border:0;background:#000a;color:#fff;font-size:38px;cursor:pointer}
.lightbox-prev{left:10px}
.lightbox-next{right:10px}
.lightbox-meta{display:flex;justify-content:space-between;align-items:center;padding:0 20px}
.lightbox-meta p{padding-left:0}
.lightbox-counter{font-size:12px;color:#aaa}
.reveal{opacity:0;transform:translateY(22px);transition:.75s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
.reveal{opacity:1;transform:none;transition:none}
}

@media(max-width:900px){.site-header{height:70px;padding:0 18px}
.menu-toggle{display:block;z-index:2}
.nav{position:fixed;inset:0;background:#09090a;display:flex;flex-direction:column;justify-content:center;gap:24px;font-size:22px;transform:translateX(100%);transition:.3s}
.menu-open .nav{transform:none}
.hero{height:auto;min-height:820px;align-items:flex-start}
.hero-visual{inset:0}
.hero-shade{background:linear-gradient(0deg,#080809 12%,#080809b8 55%,#08080950 100%)}
.hero-content{padding:145px 20px 270px}
.hero h1{font-size:clamp(36px,9.6vw,52px)}
.hero-copy{font-size:15px}
.hero-stats{left:20px;right:20px;grid-template-columns:1fr 1fr}
.hero-stats>div{padding:14px 10px}
.hero-stats strong{font-size:24px}
.scroll-cue{display:none}
.section{padding:90px 20px}
.section-heading{grid-template-columns:1fr;gap:25px;margin-bottom:40px}
.section-heading h2,.factory h2,.about h2,.contact h2{font-size:43px}
.service-grid{grid-template-columns:1fr 1fr}
.service-card{min-height:240px;padding:20px 16px}
.service-card:nth-child(2n){border-right:0}
.service-card i{margin:28px 0 20px}
.case-grid{grid-template-columns:1fr;gap:48px}
.case-featured{grid-column:auto;display:block}
.case-featured>div{padding-top:20px}
.case-featured h3{font-size:25px}
.factory{grid-template-columns:1fr;padding:90px 20px;gap:45px}
.factory-images{grid-template-columns:1fr 1fr}
.factory-images img{height:260px}
.about{grid-template-columns:1fr;gap:50px}
.about-image img{height:480px}
.about-image span{right:0}
.contact{padding:90px 20px;grid-template-columns:1fr;gap:40px}
.contact-qr{grid-column:auto;width:100%}
.addresses{grid-template-columns:1fr}
.contact-cards strong{font-size:21px}
footer{padding:36px 20px 90px;align-items:flex-start;gap:30px;flex-wrap:wrap}
.footer-links{width:100%;justify-content:space-between}
.mobile-call{display:flex;position:fixed;z-index:30;left:15px;right:15px;bottom:13px;background:var(--red2);color:#fff;justify-content:space-between;padding:14px 18px;font-weight:700;box-shadow:0 10px 35px #0005}
.lightbox{width:94vw}
.lightbox p{font-size:13px}
}

@media(max-width:560px){.hero-actions{flex-direction:column;align-items:stretch}
.btn{width:100%}
.service-grid{grid-template-columns:1fr}
.service-card{border-right:0;min-height:210px}
.factory-images{grid-template-columns:1fr}
.factory-images img{height:240px}
.about-image img{height:390px}
.case-open,.case-featured .case-open{aspect-ratio:1.35}
.filters{gap:7px}
.filters button{padding:8px 12px;font-size:12px}
.addresses{font-size:12px}
.contact-cards a{padding:18px}
.contact-cards strong{font-size:19px}
.contact-qr{align-items:flex-start;gap:16px;padding:14px}
.contact-qr img{width:135px}
.contact-qr b{font-size:18px}
}