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strong{font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase;margin-top:1.25rem;font-size:.68rem;line-height:1.55}.security-intro{margin-bottom:3rem}.security-grid{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(4,1fr);display:grid}.security-grid article{border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:16rem;padding:1.25rem}.security-grid article>span{color:var(--blue)}.security-grid h3{letter-spacing:-.025em;text-overflow:ellipsis;white-space:nowrap;margin-top:4.5rem;font-size:clamp(.98rem,1.15vw,1.15rem);font-weight:500;line-height:1.1;overflow:hidden}.security-grid p{color:var(--muted);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin-top:.85rem;font-size:.85rem;line-height:1.55;display:-webkit-box;overflow:hidden}.security-closing{font-family:var(--mono);letter-spacing:.07em;text-transform:uppercase;margin-top:1.25rem;font-size:.72rem}.final-cta{text-align:center;flex-direction:column;align-items:center;padding-top:clamp(6rem,11vw,11rem);padding-bottom:clamp(6rem,11vw,11rem);display:flex}.final-cta-logo{width:clamp(4rem,5.5vw,5rem);height:auto;margin-bottom:1rem;display:block}.final-cta h2{max-width:21ch}.final-cta>p:not(.eyebrow){max-width:34rem;color:var(--muted);margin:1.5rem 0 2rem;font-size:1rem;line-height:1.55}.site-footer{border-top:1px solid var(--line);padding-top:1.35rem;padding-bottom:1.5rem}.footer-brand img{width:7.5rem;height:auto;display:block}.footer-bottom{color:var(--muted);border-top:1px solid #11111138;justify-content:space-between;gap:2rem;margin-top:1.35rem;padding-top:1rem;font-size:.68rem;line-height:1.55;display:flex}.footer-bottom span:last-child{text-align:right;max-width:36rem}html[lang=zh-CN] .hero h1{line-height:1.05}html[lang=zh-CN] .section-intro h2,html[lang=zh-CN] .final-cta h2{white-space:pre-line;line-height:1.12}html[lang=zh-CN] .section-intro h2{max-width:15em}html[lang=zh-CN] .section-intro>p,html[lang=zh-CN] .feature-card p,html[lang=zh-CN] .security-grid p,html[lang=zh-CN] .final-cta>p:not(.eyebrow){line-height:1.72}html[lang=zh-CN] .feature-card h3,html[lang=zh-CN] .security-grid h3{line-height:1.25}@media (width<=900px){.site-nav,.header-cta{display:none}.language-toggle,.menu-toggle{place-content:center;width:2.7rem;min-width:0;height:2.7rem;padding:0;display:grid}.menu-toggle{border:1px solid var(--ink);background:0 0;gap:.34rem}.menu-toggle span{border-top:1px solid;width:1rem;display:block}.mobile-nav{z-index:19;background:#fff;align-content:start;gap:1px;padding:7rem max(1rem,50vw + min(1600px,100vw - clamp(2rem,8vw,12rem))/-2) 2rem;display:grid;position:fixed;inset:0}.mobile-nav[hidden]{display:none}.mobile-nav a,.mobile-nav button{font-family:var(--mono);letter-spacing:.08em;text-align:left;text-transform:uppercase;background:0 0;border:0;border-bottom:1px solid #1111112e;padding:.95rem 0;font-size:.75rem;text-decoration:none}.mobile-nav button{color:var(--blue);border-bottom:0}.hero{min-height:44rem}.hero-copy{padding-bottom:3rem}.hero-meta{text-align:left;align-self:end;margin-top:3rem;position:static}.section-intro{grid-template-columns:1fr;gap:1.5rem}.feature-grid{grid-template-columns:1fr;gap:5rem}.visual-container{aspect-ratio:16/9}.security-grid{grid-template-columns:repeat(2,1fr)}.security-grid article{min-height:13.5rem}.security-grid h3{margin-top:2.5rem}}@media 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