*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{--ink:#000;--paper:#fff;--muted:#363636;--line:#000;--gray:#f4f4f4;--container:1280px}
body{margin:0;background:#fff;color:#000;font-family:Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.55}
body.lock{overflow:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{font:inherit;color:inherit}
.site-header{position:sticky;top:0;z-index:60;display:grid;grid-template-columns:300px 1fr;border-bottom:2px solid #000;background:#fff}
.brand{display:flex;align-items:center;padding:20px;border-right:2px solid #000;font-size:24px;font-weight:900;letter-spacing:-.04em}
.menu-toggle{display:none}
nav{display:grid;grid-template-columns:repeat(6,1fr)}
nav a,nav button{display:flex;align-items:center;justify-content:center;min-height:72px;border:0;border-right:2px solid #000;background:#fff;font-weight:900;cursor:pointer}
nav a:hover,nav button:hover{background:#000;color:#fff}
.nav-contact{background:#000;color:#fff}
.hero-swiss{display:grid;grid-template-columns:1.08fr .92fr;border-bottom:2px solid #000}
.hero-title{min-height:720px;padding:36px;display:flex;flex-direction:column;justify-content:space-between;border-right:2px solid #000}
.hero-title small,.entry-grid small,.section-title p,.device-title p,.download-block p,.sub-hero p,.eyebrow{font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.12em}
.hero-title h1{font-size:clamp(64px,11vw,156px);line-height:.84;letter-spacing:-.09em;margin:32px 0;max-width:7.4em}
.hero-title p{max-width:780px;font-size:22px;line-height:1.65;color:#222;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn,.devices-board button,.table-btn,.footer-links button{display:inline-flex;align-items:center;justify-content:center;background:#000;color:#fff;border:2px solid #000;min-height:48px;padding:0 18px;font-weight:900;cursor:pointer}
.btn.secondary{background:#fff;color:#000}.btn.ghost{background:#f4f4f4;color:#000}.btn:hover,.devices-board button:hover,.table-btn:hover,.footer-links button:hover{filter:invert(1)}
.hero-image{display:flex;align-items:center;justify-content:center;min-height:720px;padding:30px;background:#f4f4f4}
.hero-image img{max-height:620px;object-fit:contain}
.entry-grid{display:grid;grid-template-columns:1.15fr .95fr .95fr .95fr;border-bottom:2px solid #000}
.entry-grid a,.entry-grid button{min-height:300px;padding:26px;text-align:left;background:#fff;border:0;border-right:2px solid #000;display:flex;flex-direction:column;justify-content:space-between;cursor:pointer}
.entry-grid a:last-of-type{background:#f4f4f4}
.entry-grid button{border-right:0}
.entry-grid h2,.entry-grid h3{font-size:34px;line-height:.96;margin:18px 0 12px;letter-spacing:-.05em}
.entry-grid h2{font-size:54px}
.entry-grid p,.number-grid p,.path-grid p,.security-grid p,.scenario-grid p,.faq-section p,.support-section p,.site-footer p,.devices-board p{color:#333}
.entry-grid strong{word-break:break-word}
.block,.download-block,.sub-hero{border-bottom:2px solid #000;padding:42px 36px}
.section-title{text-align:center;max-width:980px;margin:0 auto 34px}
.section-title h2,.download-block h2,.support-section h2,.faq-section h2,.sub-hero h1{font-size:clamp(42px,7vw,96px);line-height:.88;letter-spacing:-.075em;margin:12px 0}
.section-title span,.download-block span,.support-section span,.sub-hero span{display:block;color:#333;font-size:18px;line-height:1.8}
.number-grid,.path-grid,.security-grid,.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);border:2px solid #000;border-bottom:0;border-right:0}
.number-grid article,.path-grid article,.security-grid article,.scenario-grid article{padding:24px;min-height:260px;border-right:2px solid #000;border-bottom:2px solid #000}
.number-grid b,.path-grid b{display:block;font-size:46px;line-height:1;margin-bottom:18px}
.number-grid h3,.path-grid h3,.security-grid h3,.scenario-grid h3,.support-section h3{font-size:28px;line-height:1;margin:0 0 14px}
.devices-board{border-bottom:2px solid #000}
.device-title{display:grid;grid-template-columns:360px 1fr;border-bottom:2px solid #000}
.device-title p{padding:26px;border-right:2px solid #000;margin:0}
.device-title h2{font-size:clamp(44px,7vw,96px);line-height:.88;letter-spacing:-.075em;margin:0;padding:26px}
.devices-board article{display:grid;grid-template-columns:1fr 260px 150px 130px;gap:24px;align-items:center;border-bottom:2px solid #000;padding:24px 36px}
.devices-board article:last-child{border-bottom:0}
.devices-board small{font-size:72px;font-weight:900;letter-spacing:-.08em}
.devices-board h3{font-size:34px;line-height:1;margin:8px 0 12px}
.devices-board img{height:180px;object-fit:contain;justify-self:center}
.devices-board strong{font-size:40px}
.table-wrap{overflow:auto;border:2px solid #000}
table{width:100%;border-collapse:collapse;min-width:920px}
th,td{padding:18px;border-right:2px solid #000;border-bottom:2px solid #000;text-align:left}
th{background:#000;color:#fff}
td:last-child,th:last-child{border-right:0}
.download-block{display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;background:#000;color:#fff}
.download-block span{color:#e7e7e7}
.download-block .btn{background:#fff;color:#000;border-color:#fff;white-space:nowrap}
.security-grid,.scenario-grid{grid-template-columns:repeat(4,1fr)}
.faq-section details{border:2px solid #000;border-bottom:0;padding:20px 24px}
.faq-section details:last-child{border-bottom:2px solid #000}
.faq-section summary{font-size:22px;font-weight:900;cursor:pointer}
.support-section{display:grid;grid-template-columns:1.08fr .72fr;gap:30px}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.tags em{font-style:normal;padding:9px 12px;border:2px solid #000;background:#fff;font-size:13px;color:#333}
.qr-card{border:2px solid #000;padding:24px;text-align:center}
.qr-card img{width:min(300px,100%);margin:0 auto 18px;border:2px solid #000;padding:10px}
.site-footer{display:grid;grid-template-columns:1fr 1fr;padding:34px 36px;background:#000;color:#fff}
.site-footer p{color:#e0e0e0;max-width:720px}
.site-footer strong{font-size:36px}
.footer-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;align-content:start}
.footer-links a,.footer-links button{background:#000;color:#fff;border:2px solid #fff;padding:12px 14px}
.sub-main{padding-top:0}.sub-hero{background:#f4f4f4}
.modal{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:22px}.modal.active{display:flex}.modal-mask{position:absolute;inset:0;background:rgba(0,0,0,.72);backdrop-filter:blur(8px)}.modal-card{position:relative;z-index:1;width:min(430px,92vw);background:#fff;color:#000;border:2px solid #000;padding:28px;text-align:center}.modal-card img{width:230px;margin:18px auto;border:2px solid #000;padding:10px}.modal-card h3{font-size:30px;margin:0}.modal-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:18px}.close{position:absolute;right:12px;top:12px;width:36px;height:36px;background:#000;color:#fff;border:0;font-size:22px}.float-contact{position:fixed;right:18px;bottom:18px;z-index:90;background:#000;color:#fff;border:2px solid #000;padding:14px 18px;font-weight:900}
@media(max-width:1080px){.site-header{grid-template-columns:1fr auto}.brand{border-right:0}.menu-toggle{display:block;background:#000;color:#fff;border:0;padding:0 18px;font-weight:900}.site-header nav{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;border-top:2px solid #000;grid-template-columns:1fr}.site-header nav.is-open{display:grid}.site-header nav a,.site-header nav button{justify-content:flex-start;border-bottom:2px solid #000;border-right:0}.hero-swiss,.support-section,.download-block,.site-footer{grid-template-columns:1fr}.hero-title,.hero-image{min-height:auto;border-right:0}.entry-grid,.number-grid,.path-grid,.security-grid,.scenario-grid{grid-template-columns:repeat(2,1fr)}.devices-board article{grid-template-columns:1fr 180px 120px}.devices-board article button{grid-column:1/-1}.footer-links{justify-content:flex-start}}
@media(max-width:680px){.brand{font-size:20px;padding:16px}.hero-title{padding:24px}.hero-title h1{font-size:48px}.hero-title p{font-size:18px}.entry-grid,.number-grid,.path-grid,.security-grid,.scenario-grid{grid-template-columns:1fr}.block,.download-block,.sub-hero{padding:28px 20px}.section-title{text-align:left}.section-title h2,.download-block h2,.support-section h2,.faq-section h2,.sub-hero h1{font-size:42px}.devices-board article{grid-template-columns:1fr;padding:22px}.devices-board img{justify-self:start;height:150px}.device-title{grid-template-columns:1fr}.device-title p{border-right:0;border-bottom:2px solid #000}.device-title h2{font-size:42px}.hero-actions,.modal-actions{flex-direction:column}.btn,.devices-board button,.table-btn{width:100%}.site-footer{padding:28px 20px}.float-contact{left:14px;right:14px;text-align:center}}