*{box-sizing:border-box}
html{scroll-behavior:smooth}
:root{--red:#ff2a1f;--red2:#e71910;--black:#080808;--white:#fff;--paper:#fff5e8;--muted:#4a2b29;--line:#080808;--shadow:10px 10px 0 #080808;--container:1240px}
body{margin:0;background:var(--red);color:var(--black);font-family:Impact,"Arial Black","PingFang SC","Microsoft YaHei",Arial,sans-serif;overflow-x:hidden}
body.lock{overflow:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button{font:inherit;color:inherit}
.site-header{position:sticky;top:0;z-index:70;display:flex;justify-content:space-between;align-items:center;padding:16px 5vw;background:var(--black);color:var(--red);border-bottom:6px solid var(--white)}
.brand{font-size:31px;letter-spacing:-.06em;font-weight:900;text-transform:uppercase}
.brand-mobile{display:none}
.menu-toggle{display:none;background:var(--red);color:var(--black);border:4px solid var(--white);padding:9px 13px;font-weight:900;box-shadow:4px 4px 0 var(--white)}
nav{display:flex;align-items:center;gap:10px}
nav a,nav button{background:var(--white);color:var(--black);padding:11px 14px;border:4px solid var(--red);font-weight:900;box-shadow:5px 5px 0 var(--red);cursor:pointer}
.nav-contact{background:var(--red)!important;color:var(--black)!important;border-color:var(--white)!important}
.hero-red{min-height:720px;display:grid;grid-template-columns:.95fr 1.05fr;align-items:center;gap:26px;padding:70px 5vw;border-bottom:6px solid var(--black);background:repeating-linear-gradient(-8deg,var(--red) 0 38px,var(--red2) 38px 76px)}
.hero-copy{position:relative;z-index:2}.stamp{display:inline-flex;background:var(--black);color:var(--white);border:5px solid var(--white);padding:12px 16px;transform:rotate(-2deg);font-size:22px;letter-spacing:.05em}.hero-copy h1{font-size:clamp(56px,9vw,128px);line-height:.86;letter-spacing:-.08em;max-width:1000px;margin:30px 0 18px}.hero-copy p{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",Arial,sans-serif;font-weight:900;font-size:20px;line-height:1.75;max-width:800px}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}.button,.product-card button,.table-btn,.footer-links button{display:inline-flex;align-items:center;justify-content:center;background:var(--white);color:var(--black);border:5px solid var(--black);min-height:54px;padding:0 21px;font-weight:900;box-shadow:7px 7px 0 var(--black);cursor:pointer}.button.primary,.product-card button,.table-btn{background:var(--black);color:var(--white);border-color:var(--white);box-shadow:7px 7px 0 var(--white)}.button.ghost{background:var(--red);color:var(--black)}
.hero-visual{background:var(--white);border:6px solid var(--black);box-shadow:var(--shadow);padding:28px;transform:rotate(1deg)}.hero-visual img{max-height:560px;margin:auto;object-fit:contain}
.impact-strip{display:grid;grid-template-columns:1fr 1fr 1fr;background:var(--black);color:var(--white);border-bottom:6px solid var(--white)}.impact-strip div{padding:18px 5vw;border-right:6px solid var(--white);font-size:28px;line-height:1}.impact-strip div:last-child{border-right:0}
.entry-grid{display:grid;grid-template-columns:1.08fr .92fr .92fr .92fr;border-bottom:6px solid var(--black);background:var(--black)}
.entry-card{min-height:285px;text-align:left;background:var(--white);border:0;border-right:6px solid var(--black);padding:25px;display:flex;flex-direction:column;justify-content:space-between;cursor:pointer}.entry-card.main{background:var(--black);color:var(--white);border-right:6px solid var(--white)}.entry-card.black{background:var(--red);color:var(--black)}.entry-card small,.product-card small,.headline-card p,.section-title p,.download-band p,.sub-hero p,.eyebrow{font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:900}.entry-card h2{font-size:54px;line-height:.92;letter-spacing:-.065em;margin:14px 0}.entry-card h3,.product-card h3,.authority-grid h3,.path-grid h3,.security-grid h3,.scenario-grid h3,.support-section h3{font-size:29px;line-height:.98;margin:12px 0}.entry-card p,.product-card p,.authority-grid p,.path-grid p,.security-grid p,.scenario-grid p,.faq-section p,.support-section p,.site-footer p{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",Arial,sans-serif;font-weight:800;color:#3a1c19;line-height:1.65}.entry-card.main p,.entry-card.main strong{color:#fff}.entry-card strong{word-break:break-word}
.block,.download-band,.sub-hero{padding:60px 5vw;border-bottom:6px solid var(--black);background:var(--red)}
.section-title{text-align:center;max-width:900px;margin:0 auto 34px}.section-title h2,.download-band h2,.support-section h2,.faq-section h2,.sub-hero h1{font-size:clamp(42px,6vw,86px);line-height:.9;letter-spacing:-.075em;margin:12px 0}.section-title span,.download-band span,.support-section span,.sub-hero span{display:block;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",Arial,sans-serif;font-weight:900;color:#3a1c19;line-height:1.8}
.authority-grid,.path-grid,.security-grid,.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:6px solid var(--black);border-left:6px solid var(--black)}.authority-grid article,.path-grid article,.security-grid article,.scenario-grid article{min-height:260px;background:var(--white);border-right:6px solid var(--black);border-bottom:6px solid var(--black);padding:24px}.authority-grid b,.path-grid b{display:block;font-size:56px;line-height:.8;color:var(--red)}
.product-wall{display:grid;grid-template-columns:1fr 1fr;border-bottom:6px solid var(--black);border-left:6px solid var(--black);background:var(--black)}.headline-card,.product-card{min-height:430px;background:var(--white);border-right:6px solid var(--black);border-bottom:6px solid var(--black);padding:25px}.headline-card{background:var(--black);color:var(--red);display:flex;flex-direction:column;justify-content:center}.headline-card h2{font-size:clamp(45px,6vw,88px);line-height:.86;letter-spacing:-.075em;margin:16px 0}.headline-card span{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",Arial,sans-serif;font-weight:900;color:#fff;line-height:1.7}.product-card{display:grid;grid-template-columns:1fr 240px;gap:22px;align-items:center}.product-card.wide{grid-column:1/-1;background:var(--red);grid-template-columns:1fr 420px}.product-card img{height:220px;object-fit:contain;margin:auto}.product-card.wide img{height:330px}.product-card strong{font-size:46px;color:var(--red);display:block;margin:12px 0}.product-card.wide strong{color:var(--black)}
.table-wrap{overflow:auto;background:var(--white);border:6px solid var(--black)}table{width:100%;border-collapse:collapse;min-width:940px}th,td{padding:18px;border-right:5px solid var(--black);border-bottom:5px solid var(--black);text-align:left}th{background:var(--black);color:var(--white)}td:first-child,td:nth-child(2){font-weight:900}
.download-band{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;background:var(--black);color:var(--white);border-bottom-color:var(--white)}.download-band span{color:#fff}.download-band .button{white-space:nowrap}
.security-grid,.scenario-grid{grid-template-columns:repeat(2,1fr)}
.faq-section details{background:var(--white);border:6px solid var(--black);border-bottom:0;padding:18px 22px}.faq-section details:last-child{border-bottom:6px solid var(--black)}.faq-section summary{font-size:22px;font-weight:900;cursor:pointer}
.support-section{display:grid;grid-template-columns:1.08fr .72fr;gap:28px}.tags{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.tags em{font-style:normal;background:var(--white);border:4px solid var(--black);padding:8px 11px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",Arial,sans-serif;font-weight:900}.qr-card{background:var(--white);border:6px solid var(--black);padding:24px;text-align:center;box-shadow:var(--shadow)}.qr-card img{width:min(300px,100%);margin:0 auto 18px;border:5px solid var(--black);padding:10px;background:#fff}
.sub-main{padding-top:0}.sub-hero{background:var(--black);color:var(--white)}
.site-footer{padding:42px 5vw;background:var(--black);color:var(--white);display:flex;justify-content:space-between;gap:24px}.site-footer strong{font-size:36px}.site-footer p{color:#fff;max-width:760px}.footer-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.footer-links a,.footer-links button{background:transparent;color:var(--white);border:4px solid var(--white);padding:11px 14px}
.modal{position:fixed;inset:0;z-index:130;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);padding:28px;background:var(--white);border:6px solid var(--black);box-shadow:var(--shadow);text-align:center}.modal-card img{width:230px;margin:18px auto;border:5px solid var(--black);padding:10px;background:#fff}.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:var(--black);color:var(--white);border:0;font-size:22px}.float-contact{position:fixed;right:18px;bottom:18px;z-index:100;background:var(--white);border:5px solid var(--black);box-shadow:6px 6px 0 var(--black);padding:14px 18px;font-weight:900}
@media(max-width:1080px){.brand-desktop{display:none}.brand-mobile{display:inline}.menu-toggle{display:block}nav{display:none;position:absolute;top:78px;left:18px;right:18px;flex-direction:column;align-items:flex-start;background:var(--black);border:5px solid var(--white);padding:14px}nav.is-open{display:flex}.hero-red,.support-section,.download-band{grid-template-columns:1fr}.entry-grid,.authority-grid,.path-grid,.security-grid,.scenario-grid,.product-wall{grid-template-columns:1fr 1fr}.product-card.wide,.headline-card{grid-column:auto}.product-card,.product-card.wide{grid-template-columns:1fr}.site-footer{display:grid;grid-template-columns:1fr}.footer-links{justify-content:flex-start}}
@media(max-width:680px){.site-header{padding:14px 18px}.brand{font-size:20px}.hero-red{padding:46px 20px}.hero-copy h1{font-size:44px}.hero-visual{transform:none}.impact-strip,.entry-grid,.authority-grid,.path-grid,.security-grid,.scenario-grid,.product-wall{grid-template-columns:1fr}.impact-strip div{border-right:0;border-bottom:6px solid var(--white)}.block,.download-band,.sub-hero{padding:40px 20px}.section-title{text-align:left}.entry-card h2{font-size:42px}.product-card.wide img,.product-card img{height:230px}.hero-actions,.modal-actions{flex-direction:column}.button,.product-card button,.table-btn{width:100%}.site-footer{padding:34px 20px}.float-contact{left:14px;right:14px;text-align:center}}