.article-hero{border-bottom:1px solid var(--line);padding:56px 0 0;position:relative;overflow:hidden}.article-hero:before{content:"";pointer-events:none;background-image:linear-gradient(90deg,rgba(148,163,184,.05) 1px,transparent 1px),linear-gradient(rgba(148,163,184,.05) 1px,transparent 1px);background-size:64px 64px;position:absolute;top:0;bottom:0;left:0;right:0;-webkit-mask-image:radial-gradient(70% 70% at 30% 30%,#000 30%,transparent 80%);mask-image:radial-gradient(70% 70% at 30% 30%,#000 30%,transparent 80%)}.article-hero:after{content:"";filter:blur(60px);pointer-events:none;background:radial-gradient(closest-side,rgba(0,102,255,.22),transparent 70%);border-radius:50%;width:680px;height:520px;position:absolute;top:-180px;right:-120px}.article-hero .wrap{position:relative}.article-hero .grid{grid-template-columns:1.1fr .9fr;align-items:center;gap:48px;display:grid}@media (max-width:980px){.article-hero .grid{grid-template-columns:1fr;gap:36px}}.article-hero .meta{flex-wrap:wrap;gap:8px;margin-top:18px;display:flex}.article-hero h1{font-family:var(--display);letter-spacing:-.02em;margin:20px 0 0;font-size:max(34px,min(4.4vw,52px));font-weight:600;line-height:1.05}.article-hero h1 .accent{background:linear-gradient(#fff,#cfd9ea 70%);color:transparent;-webkit-background-clip:text;background-clip:text}.article-hero p.deck{color:var(--muted);max-width:54ch;margin:20px 0 0;font-size:18px}.author-row{border-top:1px dashed var(--line);font-family:var(--mono);color:var(--muted);letter-spacing:.04em;flex-wrap:wrap;align-items:center;gap:18px;margin-top:28px;padding-top:24px;font-size:12px;display:flex}.author-row .author{align-items:center;gap:10px;display:flex}.author-row .author .av{border:1px solid var(--line-2);background:linear-gradient(135deg,#1f78ff,#1e293b);border-radius:50%;width:32px;height:32px}.author-row .author .name{color:var(--text);font-weight:600;font-family:var(--body);letter-spacing:0;font-size:14px}.author-row .sep{background:var(--line);width:1px;height:18px}.article-hero .actions{flex-wrap:wrap;gap:10px;margin-top:28px;display:flex}.hero-anim{border:1px solid var(--line);aspect-ratio:5/4;background:linear-gradient(#0c1322,#0a101c);border-radius:18px;position:relative;overflow:hidden;box-shadow:0 30px 80px -30px rgba(0,0,0,.6)}.hero-anim:before{content:"";background-image:radial-gradient(circle,rgba(148,163,184,.07) 1px,transparent 1.2px);background-size:20px 20px;position:absolute;top:0;bottom:0;left:0;right:0;-webkit-mask-image:radial-gradient(90% 80%,#000 40%,transparent 90%);mask-image:radial-gradient(90% 80%,#000 40%,transparent 90%)}.ha-board{border:1px solid var(--line-2);width:140px;height:90px;font-family:var(--mono);color:var(--muted);letter-spacing:.05em;background:linear-gradient(#1a2740,#11192b);border-radius:10px;flex-direction:column;justify-content:center;align-items:center;font-size:11px;display:flex;position:absolute;box-shadow:0 8px 30px -10px rgba(0,0,0,.7)}.ha-board:after{content:"";border:1px dashed rgba(148,163,184,.18);border-radius:6px;position:absolute;top:5px;bottom:5px;left:5px;right:5px}.ha-board .role{color:var(--muted-2);letter-spacing:.12em;text-transform:uppercase;margin-bottom:3px;font-size:10px}.ha-board .mac{color:var(--muted-2);letter-spacing:.05em;opacity:.7;margin-top:3px;font-size:9.5px}.ha-board.a{top:50%;left:7%;transform:translateY(-50%)}.ha-board.b{top:50%;right:7%;transform:translateY(-50%)}.ha-board .led{background:var(--green);width:6px;height:6px;box-shadow:0 0 8px var(--green);border-radius:50%;animation:2s ease-in-out infinite blink;position:absolute;top:8px;right:10px}.ha-board.b .led{animation-delay:.5s}@keyframes blink{0%,to{opacity:.3}50%{opacity:1}}.ha-pulse{border:1px solid var(--blue-2);opacity:0;border-radius:50%;width:8px;height:8px;animation:5s ease-out infinite haPulse;position:absolute;top:50%;left:calc(7% + 130px);transform:translateY(-50%)}.ha-pulse.d2{animation-delay:1.7s}.ha-pulse.d3{animation-delay:3.4s}@keyframes haPulse{0%{opacity:.8;transform:translateY(-50%)scale(1)}to{opacity:0;transform:translateY(-50%)scale(35)}}.ha-packet{background:var(--blue-2);border-radius:50%;width:8px;height:8px;animation:5s cubic-bezier(.55,.05,.45,.95) infinite haTravel;position:absolute;top:50%;left:calc(7% + 130px);transform:translateY(-50%);box-shadow:0 0 12px rgba(123,174,255,.85)}.ha-packet.d2{animation-delay:1.7s}.ha-packet.d3{animation-delay:3.4s}@keyframes haTravel{0%{opacity:0;transform:translateY(-50%)}8%{opacity:1}92%{opacity:1}to{opacity:0;transform:translate(calc(86% - 144px),-50%)}}.ha-ack{border:1px solid var(--green-2);opacity:0;background:0 0;border-radius:50%;width:6px;height:6px;animation:5s cubic-bezier(.55,.05,.45,.95) infinite haAck;position:absolute;top:calc(50% + 14px);right:calc(7% + 130px);transform:translateY(-50%)}.ha-ack.d2{animation-delay:1.7s}.ha-ack.d3{animation-delay:3.4s}@keyframes haAck{0%,40%{opacity:0;transform:translateY(-50%)}50%{opacity:1}98%{opacity:1}to{opacity:0;transform:translate(calc(144px - 86%),-50%)}}.ha-axis{font-family:var(--mono);color:var(--muted-2);letter-spacing:.1em;text-transform:uppercase;font-size:10.5px;position:absolute;bottom:18px;left:50%;transform:translate(-50%)}.ha-axis:before{content:"";vertical-align:middle;opacity:.5;background:currentColor;width:24px;height:1px;margin-right:8px;display:inline-block}.ha-axis:after{content:"";vertical-align:middle;opacity:.5;background:currentColor;width:24px;height:1px;margin-left:8px;display:inline-block}.ha-chip{font-family:var(--mono);color:var(--muted);letter-spacing:.06em;border:1px solid var(--line-2);background:rgba(15,23,42,.7);border-radius:6px;align-items:center;gap:8px;padding:6px 10px;font-size:10.5px;display:flex;position:absolute;top:18px;left:18px}.ha-chip .dot{background:var(--green);width:6px;height:6px;box-shadow:0 0 8px var(--green);border-radius:50%;animation:2s ease-in-out infinite blink}.article-layout{grid-template-columns:220px minmax(0,1fr) 280px;align-items:start;gap:48px;padding:56px 0 96px;display:grid}@media (max-width:1180px){.article-layout{grid-template-columns:200px minmax(0,1fr);gap:36px}.right-rail{display:none}}@media (max-width:820px){.article-layout{grid-template-columns:1fr;gap:24px}.toc{display:none}}.toc{align-self:start;position:-webkit-sticky;position:sticky;top:108px}.toc .lbl{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:14px;padding-left:14px;font-size:10.5px}.toc ol{border-left:1px solid var(--line);flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;display:flex}.toc ol li a{color:var(--muted);border-left:1px solid transparent;margin-left:-1px;padding:7px 14px;font-size:13.5px;transition:color .15s,border-color .15s,background .15s;display:block}.toc ol li a:hover{color:var(--text)}.toc ol li a.active{color:var(--text);border-left-color:var(--blue);background:linear-gradient(90deg,rgba(0,102,255,.06),transparent 80%)}.toc .progress-mini{margin-top:18px;padding:0 14px}.toc .progress-mini .bar{background:rgba(148,163,184,.15);border-radius:2px;height:3px;overflow:hidden}.toc .progress-mini .bar div{background:linear-gradient(90deg,var(--blue),var(--green));width:0%;height:100%;transition:width .2s}.toc .progress-mini .pct{font-family:var(--mono);color:var(--muted-2);letter-spacing:.06em;justify-content:space-between;margin-top:8px;font-size:10.5px;display:flex}.article-body{min-width:0}.article-body section{margin-bottom:48px;scroll-margin-top:96px}.article-body h2{font-family:var(--display);letter-spacing:-.015em;margin:0 0 14px;font-size:26px;font-weight:600;line-height:1.15}.article-body h2 .num{font-family:var(--mono);letter-spacing:.1em;color:var(--blue-2);vertical-align:middle;margin-right:12px;font-size:13px;font-weight:500}.article-body h3{font-family:var(--display);letter-spacing:-.005em;margin:28px 0 10px;font-size:18px;font-weight:600}.article-body p{color:#cbd5e1;margin:12px 0;font-size:15.5px;line-height:1.65}.article-body p strong{color:var(--text);font-weight:600}.article-body a.inline{color:var(--blue-2);text-underline-offset:3px;-webkit-text-decoration:underline rgba(123,174,255,.4);text-decoration:underline rgba(123,174,255,.4)}.article-body ul{flex-direction:column;gap:8px;margin:14px 0;padding-left:0;list-style:none;display:flex}.article-body ul li{color:#cbd5e1;gap:12px;font-size:15px;line-height:1.55;display:flex}.article-body ul li:before{content:"";background:var(--blue-2);border-radius:50%;flex:0 0 6px;width:6px;height:6px;margin-top:9px}.article-body .callout{border:1px solid var(--line);background:linear-gradient(rgba(0,102,255,.06),transparent);border-radius:12px;align-items:flex-start;gap:14px;margin:20px 0;padding:16px 18px;display:flex}.article-body .callout .ico{color:var(--blue-2);flex:0 0 24px;margin-top:1px}.article-body .callout p{color:var(--text);margin:0;font-size:14px}.article-body .callout.warn{background:linear-gradient(rgba(251,191,36,.08),transparent)}.article-body .callout.warn .ico{color:#fbd38d}.article-body code,.step-list .step code,.trouble .ans code{font-family:var(--mono);color:var(--blue-3);background:rgba(123,174,255,.1);border-radius:3px;padding:1px 5px;font-size:12.5px}.stepper{border:1px solid var(--line);background:var(--card);border-radius:14px;margin:24px 0;overflow:hidden}.stepper .tabs{border-bottom:1px solid var(--line);background:linear-gradient(rgba(255,255,255,.02),transparent);display:flex}.stepper .tabs button{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);border-right:1px solid var(--line);text-align:left;flex:1;padding:14px 16px;font-size:11.5px;transition:color .15s,background .15s;position:relative}.stepper .tabs button:last-child{border-right:0}.stepper .tabs button .n{color:var(--muted-2);opacity:.7;font-size:10.5px;display:block}.stepper .tabs button .nm{color:inherit;margin-top:3px;font-size:11.5px;display:block}.stepper .tabs button:hover{color:var(--text);background:rgba(255,255,255,.02)}.stepper .tabs button.active{color:var(--text)}.stepper .tabs button.active .n{color:var(--blue-2)}.stepper .tabs button.active:after{content:"";background:var(--blue);height:2px;position:absolute;bottom:-1px;left:0;right:0}.stepper .panel{align-items:center;gap:32px;min-height:240px;padding:22px 24px;display:none}.stepper .panel.active{grid-template-columns:1fr 1fr;display:grid}@media (max-width:720px){.stepper .panel.active{grid-template-columns:1fr}}.stepper .panel .desc h4{font-family:var(--display);letter-spacing:-.005em;margin:0 0 8px;font-size:17px;font-weight:600}.stepper .panel .desc p{color:var(--muted);margin:0;font-size:14.5px;line-height:1.55}.stepper .panel .desc .key{font-family:var(--mono);color:var(--blue-2);letter-spacing:.04em;margin-top:12px;font-size:11.5px}.stepper .panel .viz{border:1px solid var(--line);background:#0b1322;border-radius:10px;height:200px;position:relative;overflow:hidden}.stepper .panel .viz svg{width:100%;height:100%}.step-board{fill:#11192b;stroke:#475569;stroke-width:1px}.step-board-lbl{fill:var(--muted);font-family:JetBrains Mono,monospace;font-size:9px}.step-flow{stroke:var(--blue-2);stroke-width:1.5px;fill:none;stroke-dasharray:4 4;animation:2.5s linear infinite dash}@keyframes dash{to{stroke-dashoffset:-16px}}.step-pkt{fill:var(--blue-2);filter:drop-shadow(0 0 4px rgba(123,174,255,.6))}.compare{border:1px solid var(--line);background:var(--card);border-radius:14px;margin:24px 0;overflow:hidden}.compare table{border-collapse:collapse;width:100%}.compare th,.compare td{text-align:left;border-bottom:1px solid var(--line);padding:14px 18px;font-size:14px}.compare th{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);background:rgba(255,255,255,.02);font-size:11px;font-weight:500}.compare td:first-child{color:var(--text);font-weight:600}.compare tr:last-child td{border-bottom:0}.compare .col-hl{color:var(--green-2);font-weight:600}.compare .bar{vertical-align:middle;background:rgba(148,163,184,.2);border-radius:3px;width:80px;height:6px;margin-right:8px;display:inline-block;position:relative;overflow:hidden}.compare .bar span{background:linear-gradient(90deg,var(--blue),var(--green-2));border-radius:3px;position:absolute;top:0;bottom:0;left:0}.code{border:1px solid var(--line);background:#0b1322;border-radius:12px;margin:20px 0;overflow:hidden}.code .head{border-bottom:1px solid var(--line);background:linear-gradient(rgba(255,255,255,.02),transparent);justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;display:flex}.code .head .file{font-family:var(--mono);color:var(--muted);font-size:12px}.code .head .lang{font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2);border:1px solid var(--line-2);border-radius:4px;margin-left:auto;padding:2px 7px;font-size:10.5px}.code .head .copy{font-family:var(--mono);color:var(--muted);border:1px solid var(--line-2);letter-spacing:.04em;background:0 0;border-radius:5px;padding:4px 9px;font-size:11px;transition:color .15s,border-color .15s}.code .head .copy:hover{color:var(--text);border-color:#4b5b73}.code pre{font-family:var(--mono);color:#d6deea;margin:0;padding:18px 20px;font-size:13px;line-height:1.65;overflow-x:auto}.code .c-key{color:#f0a6ca}.code .c-typ{color:#7baeff}.code .c-fn{color:#fbd38d}.code .c-str{color:#5be3b1}.code .c-num{color:#fbd38d}.code .c-com{color:#64748b;font-style:italic}.code .c-pre{color:#a892ff}.code .c-pun{color:#94a3b8}.code .line-h{border-left:2px solid var(--blue);background:rgba(0,102,255,.08);margin:0 -20px;padding:0 20px 0 18px;display:block}.wiring{border:1px solid var(--line);background:linear-gradient(#0d1525,#0a101c);border-radius:14px;margin:20px 0;overflow:hidden}.wiring .top{border-bottom:1px solid var(--line);font-family:var(--mono);color:var(--muted);letter-spacing:.04em;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:14px 18px;font-size:12px;display:flex}.wiring .top .legend{gap:14px;display:flex}.wiring .top .legend span{align-items:center;gap:6px;font-size:11px;display:inline-flex}.wiring .top .legend i{border-radius:1px;width:14px;height:2px;display:inline-block}.wiring svg{background:#0a101c;width:100%;height:auto;display:block}.step-list{counter-reset:s;flex-direction:column;gap:14px;margin:18px 0;display:flex}.step-list .step{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:12px;grid-template-columns:auto 1fr;gap:18px;padding:18px 20px;transition:border-color .2s;display:grid}.step-list .step:hover{border-color:#34435c}.step-list .step:before{content:counter(s,decimal-leading-zero);font-family:var(--mono);color:var(--blue-2);letter-spacing:.05em;align-self:start;padding-top:2px;font-size:13px}.step-list .step h4{font-family:var(--display);margin:0 0 4px;font-size:16px;font-weight:600}.step-list .step p{color:var(--muted);margin:0;font-size:14px;line-height:1.55}.step-list .step code{border:1px solid rgba(123,174,255,.18);font-size:12px}.trouble{border:1px solid var(--line);background:var(--card);border-radius:12px;flex-direction:column;gap:0;margin:18px 0;display:flex;overflow:hidden}.trouble details{border-bottom:1px solid var(--line)}.trouble details:last-child{border-bottom:0}.trouble summary{cursor:pointer;color:var(--text);justify-content:space-between;align-items:center;gap:14px;padding:14px 18px;font-size:14.5px;font-weight:500;list-style:none;transition:background .15s;display:flex}.trouble summary::-webkit-details-marker{display:none}.trouble summary:hover{background:rgba(255,255,255,.02)}.trouble summary .chev{color:var(--muted-2);flex:none;transition:transform .2s}.trouble details[open] summary .chev{color:var(--text);transform:rotate(90deg)}.trouble .ans{color:var(--muted);padding:0 18px 16px;font-size:14px;line-height:1.6}.trouble .ans code{border:1px solid rgba(123,174,255,.18);font-size:12px}.right-rail{flex-direction:column;align-self:start;gap:16px;display:flex;position:-webkit-sticky;position:sticky;top:108px}.rail-card{background:var(--card);border:1px solid var(--line);border-radius:14px;flex-direction:column;gap:12px;padding:18px;display:flex}.rail-card .lbl{font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);font-size:10.5px}.rail-card .kit-img{aspect-ratio:5/3;border:1px solid var(--line);background:#0b1322;border-radius:8px;position:relative;overflow:hidden}.rail-card .kit-img svg{width:100%;height:100%}.rail-card h4{font-family:var(--display);letter-spacing:-.005em;margin:0;font-size:15px;font-weight:600}.rail-card p{color:var(--muted);margin:0;font-size:13px;line-height:1.5}.rail-card .price{font-family:var(--display);color:var(--text);font-size:18px;font-weight:600}.rail-card .price small{font-family:var(--mono);color:var(--muted-2);letter-spacing:.04em;margin-left:6px;font-size:11px;font-weight:400}.rail-card .btn{justify-content:center;width:100%}.rail-list a{border-bottom:1px dashed var(--line);gap:12px;padding:10px 0;transition:color .15s;display:flex}.rail-list a:last-child{border-bottom:0}.rail-list a:hover .ttl{color:var(--text)}.rail-list .n{font-family:var(--mono);color:var(--muted-2);letter-spacing:.04em;padding-top:3px;font-size:11px}.rail-list .ttl{color:var(--muted);font-size:13.5px;font-weight:500;line-height:1.4;transition:color .15s}.rail-list .sub{font-family:var(--mono);color:var(--muted-2);letter-spacing:.04em;margin-top:3px;font-size:10.5px}.parts{border-top:1px dashed var(--line);flex-direction:column;gap:6px;margin:6px 0 0;padding:8px 0 0;list-style:none;display:flex}.parts li{justify-content:space-between;font-size:13px;display:flex}.parts li .nm{color:var(--text)}.parts li .q{font-family:var(--mono);color:var(--muted-2);letter-spacing:.04em;font-size:11.5px}.rail-card .kit-foot{border-top:1px dashed var(--line);justify-content:space-between;align-items:center;padding-top:10px;display:flex}.rail-card .stock{font-family:var(--mono);color:var(--green-2);font-size:11px}.next-band{border:1px solid var(--line);background:linear-gradient(180deg,rgba(0,102,255,.06),transparent),var(--card);border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;margin-top:32px;padding:28px;display:flex}.next-band .h3{font-family:var(--display);margin:0;font-size:20px;font-weight:600}.next-band p{color:var(--muted);margin:4px 0 0;font-size:14px}.next-band .cta{flex-wrap:wrap;gap:10px;display:flex}.read-bar{z-index:60;pointer-events:none;background:0 0;height:2px;position:fixed;top:0;left:0;right:0}.read-bar div{background:linear-gradient(90deg,var(--blue),var(--green));width:0;height:100%;transition:width .1s linear}