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1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:38px 38px;-webkit-mask-image:linear-gradient(180deg,black,transparent 92%);mask-image:linear-gradient(180deg,black,transparent 92%)}.principle-heading{position:relative;z-index:1;max-width:760px}.principle-heading h2{margin:0;font-size:clamp(2.5rem,5vw,5.2rem);line-height:1.02;letter-spacing:0}.principle-heading p:not(.section-label){max-width:650px;margin:22px 0 0;color:var(--muted-strong);font-size:1.06rem;line-height:1.8}.principle-map{position:relative;z-index:1;min-height:520px;margin-top:38px;overflow:hidden;padding:44px;border:1px solid rgba(255,255,255,.12);background:radial-gradient(circle at 28% 50%,rgba(255,39,55,.16),transparent 18rem),radial-gradient(circle at 72% 50%,rgba(143,92,255,.14),transparent 19rem),#050507ad}.principle-map-grid{position:absolute;top:18px;right:18px;bottom:18px;left:18px;pointer-events:none;opacity:.42;border:1px solid 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h3{margin:0;color:#fff;font-size:clamp(1.2rem,1.6vw,1.48rem)}.principle-node p{margin:8px 0 0;color:var(--muted-strong);line-height:1.58}.principle-node strong{position:absolute;right:18px;top:18px;padding:6px 9px;color:#fff;font-family:var(--font-mono);font-size:.68rem;border:1px solid rgba(255,39,55,.46);background:#ff273721}.principle-caption{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:42px;color:var(--muted);font-family:var(--font-mono);font-size:.76rem;font-weight:900}.principle-caption span{padding-top:12px;border-top:1px solid rgba(255,255,255,.12)}.principle-notes{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}.principle-notes article{min-height:116px;padding:18px;border:1px solid rgba(255,255,255,.1);background:#ffffff09}.principle-notes span{display:block;color:#fff;font-weight:900}.principle-notes p{margin:8px 0 0;color:var(--muted);line-height:1.62}.principle-orbit{position:absolute;left:50%;top:190px;z-index:3;display:inline-flex;align-items:center;gap:10px;padding:10px 14px;color:#fff;border:1px solid rgba(255,39,55,.42);background:linear-gradient(135deg,#ff273733,#ffffff09),#08080aeb;transform:translate(-50%,-50%);box-shadow:0 16px 44px #ff273729}.principle-orbit span,.principle-orbit strong{display:block;white-space:nowrap}.principle-orbit span{color:var(--red);font-family:var(--font-mono);font-size:.66rem;font-weight:900}.principle-orbit strong{margin-top:3px;font-size:.94rem}.topology-section{padding-top:82px}.topology-layout{display:grid;grid-template-columns:minmax(320px,.72fr) minmax(0,1.28fr);gap:clamp(34px,5vw,72px);align-items:center}.topology-copy h2{max-width:640px;margin:0;font-size:clamp(2.4rem,4.6vw,4.8rem);line-height:1.06;letter-spacing:0}.topology-copy>p{max-width:620px;margin:24px 0 0;color:var(--muted-strong);font-size:1.05rem;line-height:1.85}.topology-points{display:grid;gap:14px;margin-top:32px}.topology-points article{padding:18px 20px;border:1px solid var(--line-soft);background:linear-gradient(90deg,rgba(255,39,55,.1),transparent 62%),#ffffff07}.topology-points span{display:block;color:#fff;font-weight:900}.topology-points p{margin:8px 0 0;color:var(--muted);line-height:1.72}.topology-stage{position:relative;min-height:510px;overflow:hidden;isolation:isolate;border:1px solid var(--line);background:radial-gradient(circle at 48% 46%,rgba(255,39,55,.18),transparent 18rem),radial-gradient(circle at 78% 34%,rgba(143,92,255,.2),transparent 20rem),linear-gradient(180deg,#ffffff0d,#ffffff04),#07070ae0;box-shadow:inset 0 0 0 1px #ffffff09}.topology-stage:before{position:absolute;top:18px;right:18px;bottom:18px;left:18px;z-index:-1;content:"";border:1px solid rgba(255,255,255,.08);background:linear-gradient(90deg,transparent 0 31%,rgba(255,39,55,.12) 31% 32%,transparent 32% 64%,rgba(143,92,255,.12) 64% 65%,transparent 65%),linear-gradient(180deg,transparent 0 48%,rgba(255,255,255,.06) 48% 49%,transparent 49%)}.topology-grid{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.42;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:radial-gradient(circle at center,black,transparent 78%);mask-image:radial-gradient(circle at center,black,transparent 78%)}.topology-node{position:absolute;z-index:3;display:flex;align-items:center;gap:14px;width:206px;min-height:94px;padding:18px;border:1px solid rgba(255,255,255,.16);background:linear-gradient(135deg,#ffffff17,#ffffff06),#0a0a0edb;box-shadow:0 20px 60px #00000047}.topology-node:after{position:absolute;top:-1px;right:-1px;bottom:-1px;left:-1px;content:"";pointer-events:none;opacity:.22;border:1px solid var(--red);transform:scale(1);animation:topology-node-pulse 2.6s ease-out infinite}.topology-node-icon{display:grid;flex:0 0 auto;place-items:center;width:48px;height:48px;color:#fff;border:1px solid rgba(255,39,55,.42);background:#ff27371f}.topology-node h3{margin:0;color:#fff;font-size:1.06rem}.topology-node p{margin:6px 0 0;color:var(--muted);font-size:.88rem;line-height:1.45}.node-host{left:5%;top:42%}.node-board{left:34%;top:18%;border-color:#ff273775;background:linear-gradient(135deg,#ff273733,#ffffff09),#0e0a0ce6}.node-nic{left:42%;top:67%}.node-client{right:5%;top:40%}.topology-line{position:absolute;z-index:1;height:2px;overflow:hidden;transform-origin:left center;background:linear-gradient(90deg,#ff27371f,#ffffff38,#8f5cff1f)}.topology-line span{position:absolute;inset:-3px auto -3px 0;width:78px;background:linear-gradient(90deg,transparent,rgba(255,39,55,.92),#fff,transparent);filter:blur(.2px);animation:topology-flow 2.3s linear infinite}.topology-line-host{left:23%;top:49%;width:20%;transform:rotate(-31deg)}.topology-line-nic{left:48%;top:40%;width:18%;transform:rotate(46deg)}.topology-line-client{left:59%;top:67%;width:22%;transform:rotate(-28deg)}.topology-line-nic span{animation-delay:.46s}.topology-line-client span{animation-delay:.92s}.topology-band{position:absolute;left:55%;top:50%;z-index:2;display:inline-flex;align-items:center;gap:8px;padding:9px 12px;color:#fff;font-family:var(--font-mono);font-size:.74rem;font-weight:900;border:1px solid rgba(143,92,255,.44);background:#8f5cff1f;transform:translate(-50%,-50%)}.topology-core{position:absolute;left:38%;top:47%;z-index:2;display:grid;place-items:center;width:156px;height:156px;text-align:center;border:1px solid rgba(255,39,55,.52);background:radial-gradient(circle,rgba(255,39,55,.22),transparent 58%),#07070ad1;transform:translate(-50%,-50%);clip-path:polygon(18% 0,100% 0,100% 82%,82% 100%,0 100%,0 18%)}.topology-core span,.topology-core strong{display:block}.topology-core span{color:var(--red);font-family:var(--font-mono);font-size:.7rem;font-weight:900}.topology-core strong{margin-top:8px;color:#fff;font-size:1.04rem;line-height:1.35}.topology-pulse{position:absolute;z-index:0;width:220px;height:220px;pointer-events:none;border:1px solid rgba(255,39,55,.24);transform:translate(-50%,-50%) scale(.8);animation:topology-ring 4.2s ease-out infinite}.topology-pulse-one{left:38%;top:47%}.topology-pulse-two{left:69%;top:54%;border-color:#8f5cff3d;animation-delay:1.5s}.highlight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.highlight-card,.board-card,.accessory-card,.faq-item,.pricing-card{border:1px solid var(--line);background:linear-gradient(180deg,#ffffff0f,#ffffff05),#0a0a0dc2}.highlight-card{min-height:240px;padding:34px;transition:transform .18s ease,border-color .18s ease}.highlight-card:hover{transform:translateY(-5px);border-color:#ff27376b}.highlight-card svg,.accessory-icon svg,.policy-line svg{color:var(--red)}.highlight-card h3,.board-card h3,.accessory-card h3,.flow-steps h3{margin:18px 0 10px;font-size:clamp(1.35rem,2vw,1.85rem)}.highlight-card p,.board-card p,.accessory-card p,.flow-steps p{margin:0;color:var(--muted);line-height:1.75}.section-boards{padding-top:50px}.split-heading{display:grid;grid-template-columns:minmax(0,.88fr) minmax(280px,.55fr);gap:48px;align-items:end;margin-bottom:38px}.split-copy{display:grid;justify-items:start;gap:22px}.split-copy p{margin:0;color:var(--muted-strong);line-height:1.85}.board-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.board-card{position:relative;overflow:hidden;min-height:430px;padding:34px;isolation:isolate}.board-card:before{position:absolute;inset:-35% -20% auto auto;z-index:-1;width:420px;height:420px;content:"";opacity:.34;background:radial-gradient(circle,var(--glow-red),transparent 68%)}.board-card.violet:before{background:radial-gradient(circle,var(--glow-violet),transparent 68%)}.board-topline{display:flex;align-items:center;justify-content:space-between;color:var(--red);font-family:var(--font-mono);font-size:.8rem;font-weight:900}.board-card.violet .board-topline{color:var(--violet)}.board-card h3{margin-top:44px;font-size:clamp(1.8rem,3.2vw,3rem)}.price-line{display:flex;align-items:baseline;gap:14px;margin:34px 0 8px}.price-line strong{font-family:var(--font-display);font-size:clamp(3rem,5vw,4.8rem);line-height:.95}.price-line span,.board-card small{color:var(--muted)}.board-card .button{margin-top:28px}.section-accessories{padding-top:40px}.accessory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.accessory-card{display:flex;flex-direction:column;justify-content:space-between;min-height:335px;padding:28px}.accessory-icon{display:grid;place-items:center;width:62px;height:62px;margin-bottom:22px;border:1px solid rgba(255,39,55,.34);background:#ff273714}.accessory-card span{color:var(--red);font-family:var(--font-mono);font-size:.78rem;font-weight:900}.accessory-card .button{width:100%;margin-top:26px}.section-flow{padding-top:32px}.flow-panel{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:clamp(34px,6vw,84px);align-items:center;padding:42px;border:1px solid rgba(255,255,255,.14);background:linear-gradient(90deg,rgba(255,39,55,.11),transparent 54%),#ffffff06}.flow-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.flow-steps article{min-height:170px;padding:24px;border:1px solid rgba(255,255,255,.12);background:#ffffff09}.flow-steps span{color:var(--red);font-family:var(--font-mono);font-weight:900}.section-faq{padding-top:48px}.section-after-sales{padding-top:48px;scroll-margin-top:92px}.after-sales-standalone{padding-top:72px}.after-sales-group{border-color:#ff273742;background:linear-gradient(135deg,rgba(255,39,55,.1),transparent 42%),#0a0a0dc7}.dll-guide-section{padding-top:72px;padding-bottom:48px;scroll-margin-top:92px}.dll-guide-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.72fr);gap:22px;align-items:stretch}.dll-step-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.dll-step-card,.dll-download-card{border:1px solid var(--line);background:linear-gradient(135deg,rgba(255,39,55,.11),transparent 46%),#ffffff08}.dll-step-card{min-height:178px;padding:26px}.dll-step-card span,.dll-download-card>span{display:block;color:var(--red);font-family:var(--font-mono);font-size:.78rem;font-weight:900}.dll-step-card h3{margin:24px 0 12px;color:#fff;font-size:clamp(1.35rem,2vw,2rem);line-height:1.16}.dll-step-card p,.dll-download-card p{margin:0;color:var(--muted-strong);line-height:1.75}.dll-download-card{display:grid;align-content:space-between;gap:22px;min-height:100%;padding:32px;background:linear-gradient(150deg,#ff27373d,#ffffff09 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button{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;min-height:72px;padding:0 26px;color:var(--text);text-align:left;font-weight:900;background:transparent;cursor:pointer}.faq-item button svg{flex:0 0 auto;color:var(--red);transition:transform .18s ease}.faq-item.open button svg{transform:rotate(180deg)}.faq-item div{padding:0 26px 24px}.faq-item p{max-width:980px;margin:0;color:var(--muted-strong);line-height:1.85;white-space:pre-line}.section-pricing{padding-top:48px}.pricing-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.36fr);gap:32px;align-items:center;padding:40px;background:linear-gradient(135deg,rgba(255,39,55,.16),transparent 44%),linear-gradient(315deg,rgba(143,92,255,.14),transparent 42%),#0c0c10e0}.pricing-copy h2{color:#fff;font-family:var(--font-display);font-size:clamp(2.65rem,5.2vw,5.2rem)}.policy-line{display:inline-flex;align-items:center;gap:10px;margin-top:24px;color:#fff7f7;font-weight:900}.pricing-breakdown{display:grid;grid-template-columns:1fr;gap:12px}.pricing-breakdown div{min-height:108px;padding:18px;border:1px solid rgba(255,255,255,.12);background:#ffffff0a}.pricing-breakdown span,.pricing-breakdown strong{display:block}.pricing-breakdown span{color:var(--muted)}.pricing-breakdown strong{margin-top:14px;color:#fff;font-size:1.62rem}.footer{display:flex;align-items:center;justify-content:space-between;gap:24px;width:min(100% - 70px,1320px);margin:0 auto;padding:28px 0 42px;color:var(--muted);border-top:1px solid rgba(255,255,255,.1)}.footer p,.footer span{margin:0}.subpage{min-height:100dvh;padding-top:74px}.subpage-hero{position:relative;display:grid;align-content:center;min-height:560px;width:min(100% - 70px,1320px);margin:0 auto;overflow:hidden;padding:86px 0 70px;isolation:isolate}.subpage-hero:before{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-2;content:"";background:linear-gradient(90deg,#050506f5,#050506c2 54%,#05050652),url(/assets/hero-motherboard.png) right center / cover no-repeat}.subpage-hero:after{position:absolute;inset:auto -6vw 0;z-index:-1;height:120px;content:"";transform:skewY(-3deg);border-top:2px solid rgba(255,39,55,.72);background:linear-gradient(90deg,#ff27372e,#8f5cff38)}.subpage-hero h1{max-width:760px;margin:0;font-family:var(--font-display);font-size:clamp(3.4rem,7vw,7rem);line-height:.96;letter-spacing:0}.subpage-hero h1 span{display:block}.subpage-hero p:not(.eyebrow){max-width:680px;margin:24px 0 0;color:var(--muted-strong);font-size:clamp(1.02rem,1.3vw,1.2rem);line-height:1.85}.tutorial-hero:before{background:linear-gradient(90deg,#050506f5,#050506c2 54%,#0505066b),url(/assets/scenario-firmware.png) right center / cover 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