:root{--brand:#7156df;--brand2:#6042ca;--brand-soft:#eeeaff;--ok:#16815e;--warn:#ae611c;--err:#c63b3b;--bg:#f5f5f8;--surface:#fff;--surface2:#efeff4;--surface3:#e4e4eb;--text:#17161c;--sub:#605c69;--dim:#85818d;--line:#dedde5;--shadow:0 14px 38px #30265318;--ease:cubic-bezier(.22,.8,.25,1);--code-bg:#15141b;--code-text:#e8e6f0;--code-dim:#9a96a8;--code-key:#c4b1ff;--code-str:#8fd6ae;--mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Microsoft YaHei",sans-serif}
html[data-theme="dark"]{--brand:#9b7cf0;--brand2:#8061d8;--brand-soft:#2c2440;--ok:#58cfa4;--warn:#f2aa5c;--err:#f07878;--bg:#0e0e13;--surface:#18181f;--surface2:#202029;--surface3:#2a2a34;--text:#f6f4f8;--sub:#b8b4c0;--dim:#85818e;--line:#30303a;--shadow:0 16px 42px #0005;--code-bg:#101017;--code-text:#e8e6f0;--code-dim:#8f8b9e;--code-key:#c4b1ff;--code-str:#8fd6ae}
*{box-sizing:border-box}[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
button,input{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
a{color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:3px solid color-mix(in srgb,var(--brand) 50%,transparent);outline-offset:2px;border-radius:6px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}

/* nav */
.nav{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.3px;white-space:nowrap;border:0;background:none;padding:0}
.logo .mark{width:22px;height:22px;border:6px solid var(--brand);border-radius:50%;box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 14%,transparent);flex:none}
.logo small{font-weight:600;color:var(--dim);font-size:12px;letter-spacing:.08em}
.nav-links{display:flex;gap:4px;margin-left:8px;overflow-x:auto;scrollbar-width:none;flex:1;min-width:0}
.nav-links::-webkit-scrollbar{display:none}
.nav-links button{border:0;background:none;color:var(--sub);font-size:14.5px;font-weight:600;padding:9px 13px;border-radius:99px;white-space:nowrap;transition:.18s var(--ease)}
.nav-links button:hover{color:var(--text);background:var(--surface2)}
.nav-links button.on{color:var(--brand);background:var(--brand-soft)}
.theme-btn{flex:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:var(--surface);display:grid;place-items:center;color:var(--sub)}
.theme-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* pages */
.page{display:none;animation:fade .28s var(--ease)}
.page.on{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
section{padding:76px 0}
section.tight{padding:52px 0}
.eyebrow{font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin:0 0 12px}
h1{font-size:clamp(38px,6vw,58px);line-height:1.12;letter-spacing:-1.6px;font-weight:800;margin:0}
h1 em{font-style:normal;color:var(--brand)}
h2{font-size:clamp(26px,3.4vw,34px);line-height:1.22;letter-spacing:-.8px;font-weight:800;margin:0}
h3{font-size:18px;font-weight:700;letter-spacing:-.2px;margin:0}
h4{font-size:15px;font-weight:700;margin:0}
.sub{color:var(--sub);font-size:16.5px;max-width:660px;margin:14px 0 0}
.sec-head{margin-bottom:34px;display:flex;align-items:flex-end;gap:18px;flex-wrap:wrap}
.sec-head .sub{margin:10px 0 0}
.sec-head .more{margin-left:auto}

/* buttons & tags */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:99px;padding:12px 22px;font-size:15px;font-weight:700;border:1px solid transparent;transition:.18s var(--ease);text-decoration:none}
.btn-p{background:var(--brand);color:#fff;box-shadow:0 10px 26px color-mix(in srgb,var(--brand) 30%,transparent)}
.btn-p:hover{background:var(--brand2);transform:translateY(-1px)}
.btn-s{background:var(--surface);border-color:var(--line);color:var(--text)}
.btn-s:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:8px 15px;font-size:13.5px}
.btn:disabled,.btn:disabled:hover{opacity:.48;cursor:not-allowed;transform:none;box-shadow:none;background:var(--surface2);border-color:var(--line);color:var(--sub)}
.resource-card{display:flex;flex-direction:column;align-items:flex-start}
.resource-card p{margin-bottom:22px}
.resource-card .btn{margin-top:auto}
.connection-card{box-shadow:none}
.seg{display:inline-flex;gap:4px;padding:4px;margin-bottom:16px;border:1px solid var(--line);border-radius:14px;background:var(--surface2);max-width:100%;overflow-x:auto}
.seg button{border:0;background:none;color:var(--sub);border-radius:10px;padding:8px 16px;font-size:14px;font-weight:700;white-space:nowrap;min-height:40px}
.seg button.on{background:var(--surface);color:var(--brand);box-shadow:0 2px 8px #0000001a}
.client-guide{box-shadow:none}
.client-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.client-guide ol{margin:14px 0 0;padding-left:20px;color:var(--sub);font-size:14.5px;display:grid;gap:9px}
.client-guide .hint{font-size:13.5px;color:var(--warn);margin:14px 0 0}
.client-guide .src{margin:14px 0 0;font-size:13px}
.client-guide .src a{color:var(--brand);text-decoration:none}
code{font-family:var(--mono);font-size:.9em;background:var(--surface2);border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:var(--text);word-break:break-all}
.fields{margin:14px 0 0;display:grid;gap:12px}
.fields div{display:grid;grid-template-columns:76px 1fr;gap:10px;font-size:14px}
.fields dt{color:var(--dim);font-weight:600}
.fields dd{margin:0;color:var(--text)}
.config-card{box-shadow:none}
.config-card+.code{margin:0}
.step code{font-size:12.5px}
@media(max-width:640px){.seg{display:grid;grid-template-columns:1fr 1fr;width:100%}.fields div{grid-template-columns:1fr;gap:2px}}
/* access console */
.console{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
.console-login{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:32px}
.login-copy p{color:var(--sub);font-size:15px;margin:10px 0 0}
.check-list{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:10px;font-size:14.5px;color:var(--sub)}
.check-list li{display:flex;gap:10px;align-items:center}
.check-list li:before{content:"✓";width:22px;height:22px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:12px;font-weight:800;flex:none}
.login-form{display:grid;gap:8px;align-content:start}
.login-form label,.key-form label{font-size:13.5px;font-weight:700;color:var(--sub)}
.console input{height:46px;border:1px solid var(--line);border-radius:12px;background:var(--bg);padding:0 14px;font-size:16px;width:100%;min-width:0;transition:.16s}
.console input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 22%,transparent)}
.console input[aria-invalid="true"]{border-color:var(--err)}
.field-err{min-height:18px;margin:0;font-size:12.5px;color:var(--err)}
.field-help{font-size:13px;color:var(--dim);margin:6px 0 0}
.login-form .btn-p{margin-top:4px;height:48px}
.console-main{padding:24px;display:grid;gap:18px}
.console-bar{display:flex;align-items:center;gap:12px;justify-content:space-between;flex-wrap:wrap;padding-bottom:16px;border-bottom:1px solid var(--line)}
.console-bar b{margin-right:10px;word-break:break-all}
.console-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.console .box{border:1px solid var(--line);border-radius:16px;padding:20px;background:var(--bg);min-width:0}
.box h4{margin:0 0 14px}
.box-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.box-head h4{margin:0}
.muted{color:var(--dim)}.small{font-size:13px}
.device-row{display:flex;align-items:center;gap:12px}
.device-row div{display:grid;gap:2px;flex:1;min-width:0}
.device-row .mono{font-size:12.5px}
.dev-ic{width:40px;height:40px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;flex:none}
.dev-ic svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.state{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--ok)}
.state i{width:8px;height:8px;border-radius:50%;background:currentColor}
.box .small{margin:14px 0 0;line-height:1.6}
.copy-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-width:0}
.icon-copy{border:1px solid var(--line);background:var(--surface);color:var(--sub);border-radius:8px;padding:5px 10px;font-size:12.5px;font-weight:700;min-height:32px}
.icon-copy:hover{color:var(--brand);border-color:var(--brand)}
.key-form{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center}
.key-form .btn{height:46px}
.new-key{margin:4px 0 16px;padding:18px;border-radius:14px;border:1px solid color-mix(in srgb,var(--ok) 40%,transparent);background:color-mix(in srgb,var(--ok) 8%,transparent)}
.new-key-tip{margin:0 0 12px;font-size:14px;color:var(--sub)}
.new-key-tip b{color:var(--ok)}
table.tools.keys td:first-child{font-family:inherit;color:var(--text);font-size:14px;white-space:normal}
table.tools.keys td{vertical-align:middle}
table.tools.keys .revoked td{color:var(--dim)}
.link-danger{border:0;background:none;color:var(--err);font-weight:700;font-size:13.5px;padding:8px 4px;min-height:36px}
.btn-danger{background:var(--err);color:#fff}
html[data-theme="dark"] .btn-danger{background:#cf4646}
.btn-danger:hover{filter:brightness(.92)}
.empty{display:flex;gap:12px;align-items:center;color:var(--dim);font-size:14px}
.empty svg{width:28px;height:28px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty p{margin:0}
.sheet.confirm{width:min(420px,100%)}
.sheet.confirm p{color:var(--sub);font-size:14.5px;margin:10px 0 0}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,16px);opacity:0;background:var(--text);color:var(--bg);padding:10px 18px;border-radius:99px;font-size:14px;font-weight:600;z-index:80;transition:.2s var(--ease);pointer-events:none;max-width:calc(100% - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:960px){.console-login,.console-grid{grid-template-columns:1fr}}
@media(max-width:640px){.console-login{padding:20px;gap:24px}.console-main{padding:14px}.console .box{padding:16px}.key-form{grid-template-columns:1fr}}
.tag{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:99px;background:var(--surface2);border:1px solid var(--line);color:var(--sub);white-space:nowrap}
.tag.ok{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 35%,transparent);background:color-mix(in srgb,var(--ok) 10%,transparent)}
.tag.dev{color:var(--brand);border-color:color-mix(in srgb,var(--brand) 35%,transparent);background:color-mix(in srgb,var(--brand) 10%,transparent)}
.tag.plan{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 35%,transparent);background:color-mix(in srgb,var(--warn) 10%,transparent)}
.tag.concept{color:var(--dim)}
.legend{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-size:12.5px;color:var(--dim)}

/* grids & cards */
.g2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow);transition:.2s var(--ease)}
.card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--brand) 30%,var(--line))}
.card .ic{width:44px;height:44px;border-radius:14px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin-bottom:14px}
.card .ic svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card p{color:var(--sub);font-size:14.5px;margin:8px 0 0}
.card .meta{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}
.num{font-family:var(--mono);font-weight:700;color:var(--brand)}

/* hero */
.hero{padding:64px 0 56px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:-20% 40% 45% -10%;background:radial-gradient(closest-side,color-mix(in srgb,var(--brand) 16%,transparent),transparent);filter:blur(10px);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 0}
.hero-note{margin-top:18px;font-size:13px;color:var(--dim)}
/* transparent product photography, themed independently of the source images */
.product-stage{position:relative;display:flex;align-items:center;justify-content:center;aspect-ratio:16/10;overflow:hidden;background:radial-gradient(ellipse at 50% 42%,color-mix(in srgb,var(--brand) 16%,transparent),transparent 68%),linear-gradient(145deg,var(--surface),var(--surface2));isolation:isolate}
.product-stage:before{content:"";position:absolute;left:16%;right:16%;bottom:8%;height:10%;border-radius:50%;background:color-mix(in srgb,var(--brand) 13%,transparent);filter:blur(18px);z-index:-1}
.product-stage img{width:72%;height:86%;object-fit:contain;filter:drop-shadow(0 12px 14px #21163026)}
html[data-theme="dark"] .product-stage img{filter:drop-shadow(0 14px 18px #0006)}
.product-stage.wide img{width:94%;height:88%}
.hero-art{aspect-ratio:1/1;border-radius:26px;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-art img{width:72%;height:72%;margin-bottom:9%}
.hero-art .badges{position:absolute;left:14px;right:14px;bottom:14px;display:flex;gap:8px;flex-wrap:wrap}
.pill-live{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:99px;padding:7px 12px}
.eye{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);animation:breathe 2.2s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.4;transform:scale(.85)}50%{opacity:1;transform:scale(1.1)}}

/* strips */
.strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.strip .card h4{display:flex;align-items:center;gap:8px}
.strip ul{margin:12px 0 0;padding:0;list-style:none;display:grid;gap:9px;font-size:14px;color:var(--sub)}
.strip li{display:flex;gap:8px;align-items:flex-start}
.strip li:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:8px;flex:none}
.strip .card.dev li:before{background:var(--brand)}
.strip .card.plan li:before{background:var(--warn)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{position:relative;padding:26px 24px 24px;border-radius:20px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.step:before{counter-increment:step;content:"0" counter(step);font-family:var(--mono);font-weight:700;font-size:13px;color:var(--brand);background:var(--brand-soft);border-radius:99px;padding:5px 11px;display:inline-block}
.step h3{margin:12px 0 6px}
.step p{color:var(--sub);font-size:14.5px;margin:0}

/* skills */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.filters button{border:1px solid var(--line);background:var(--surface);color:var(--sub);border-radius:99px;padding:9px 16px;font-size:13.5px;font-weight:700;transition:.16s}
.filters button:hover{color:var(--text)}
.filters button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.skill{ text-align:left;display:flex;flex-direction:column;gap:0;width:100%}
.skill h3{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.skill .caps{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.skill .go{margin-top:14px;color:var(--brand);font-size:13px;font-weight:700}

/* hardware */
.hw{padding:0;overflow:hidden;display:flex;flex-direction:column}
.hw .product-stage{aspect-ratio:4/3;border-bottom:1px solid var(--line);flex:none}
.hw .bd{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.hw .bd .row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.hw .tools{font-family:var(--mono);font-size:12px;color:var(--dim)}

/* homepage hardware */
.core-hardware{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start}
.core-overview{background:var(--surface);border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
.core-overview .product-stage{border-bottom:1px solid var(--line)}
.core-overview .bd{padding:22px 24px}
.core-overview p{font-size:14.5px;color:var(--sub);margin:10px 0 0}
.core-overview .tag{margin-top:16px}
.hardware-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.hardware-facts .card{padding:20px;box-shadow:none}
.hardware-facts .ic{width:36px;height:36px;margin-bottom:12px;border-radius:11px}
.hardware-facts .ic svg{width:20px;height:20px}
.hardware-facts h3{font-size:16px}
.hardware-facts p{font-size:13.5px;line-height:1.7}
.home-modules .product-stage{aspect-ratio:16/10}
.home-modules .module-diagram{aspect-ratio:16/10;background:var(--surface2);display:grid;place-items:center;color:var(--brand);border-bottom:1px solid var(--line)}
.module-diagram svg{width:72px;height:72px;fill:none;stroke:currentColor;stroke-width:1.1;stroke-linecap:round;stroke-linejoin:round}
.home-modules .bd .tag{align-self:flex-start}
@media(max-width:960px){.core-hardware{grid-template-columns:1fr}.core-overview{display:grid;grid-template-columns:1fr 1fr;align-items:center}.core-overview .product-stage{height:100%;border-bottom:0;border-right:1px solid var(--line)}}
@media(max-width:640px){.hero-art img{position:absolute;top:20px;width:66%;height:calc(100% - 116px);margin:0}.core-overview{display:block}.core-overview .product-stage{height:auto;border-right:0;border-bottom:1px solid var(--line)}.core-overview .bd{padding:20px}.hardware-facts{gap:12px}.hardware-facts .card{padding:16px}.hardware-facts p{font-size:13.5px}.home-modules .module-diagram{aspect-ratio:2/1}}

/* docs */
.docs-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.docs-nav button{border:1px solid var(--line);background:var(--surface);color:var(--sub);border-radius:12px;padding:10px 16px;font-size:14px;font-weight:700}
.docs-nav button.on{background:var(--brand-soft);border-color:color-mix(in srgb,var(--brand) 40%,transparent);color:var(--brand)}
.docs-panel{display:none}
.docs-panel.on{display:block;animation:fade .24s var(--ease)}
.guide-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.tutorials .card h3,[data-doc-panel="firmware"] .card h3{margin-top:12px}
.tutorials ol{padding-left:21px;color:var(--sub);font-size:14.5px;display:grid;gap:8px;margin:14px 0}
.tutorials .btn{margin-top:18px}
.table-wrap{max-width:100%;overflow-x:auto}
.g2>*,.g3>*{min-width:0}
@media (prefers-reduced-motion:reduce){.docs-panel.on{animation:none}}
.code{background:var(--code-bg);color:var(--code-text);border:1px solid var(--line);border-radius:16px;overflow:hidden;margin:16px 0}
.code-hd{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid #ffffff14;font-size:12px;color:var(--code-dim)}
.code-hd .copy{margin-left:auto;border:1px solid #ffffff22;background:none;color:var(--code-dim);border-radius:8px;padding:4px 10px;font-size:12px}
.code-hd .copy:hover{color:#fff;border-color:#ffffff55}
.code pre{margin:0;padding:16px 18px;overflow-x:auto;font-family:var(--mono);font-size:13px;line-height:1.7}
.code .c{color:var(--code-dim)}
.code .k{color:var(--code-key)}
.code .s{color:var(--code-str)}
table.tools{width:100%;border-collapse:collapse;font-size:14px;margin-top:8px}
table.tools th,table.tools td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.tools th{font-size:12.5px;color:var(--dim);font-weight:700;letter-spacing:.06em}
table.tools td:first-child{font-family:var(--mono);font-size:13px;color:var(--brand);white-space:nowrap}
.client{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.client .card ol{margin:12px 0 0;padding-left:20px;color:var(--sub);font-size:14.5px;display:grid;gap:8px}
.client .card .src{margin-top:14px;font-size:12.5px;color:var(--dim)}
.client .card .src a{color:var(--brand);text-decoration:none;word-break:break-all}
.client .card .src a:hover{text-decoration:underline}
.note{border:1px solid color-mix(in srgb,var(--warn) 35%,transparent);background:color-mix(in srgb,var(--warn) 8%,transparent);border-radius:14px;padding:14px 16px;font-size:13.5px;color:var(--sub);margin:16px 0}
.note b{color:var(--warn)}
.faq details{border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:16px 18px;margin-bottom:12px}
.faq summary{font-weight:700;cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";margin-left:auto;color:var(--dim);font-size:18px}
.faq details[open] summary:after{content:"–"}
.faq p{color:var(--sub);font-size:14.5px;margin:10px 0 0}

/* community */
.wall .card{display:flex;flex-direction:column;gap:8px}
.wall .from{font-size:12.5px;color:var(--dim)}

/* modal */
.sheet-bg{position:fixed;inset:0;z-index:60;background:color-mix(in srgb,var(--bg) 40%,#0006);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:24px}
.sheet-bg.open{display:flex}
.sheet{width:min(560px,100%);max-height:min(78vh,720px);overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:26px}
.sheet-head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.sheet-head h3{flex:1;font-size:20px}
.sheet .close{width:36px;height:36px;border:1px solid var(--line);border-radius:11px;background:var(--surface2);display:grid;place-items:center;color:var(--sub)}
.sheet .kv{display:grid;gap:10px;margin:16px 0}
.sheet .kv .row{display:flex;gap:12px;font-size:14.5px}
.sheet .kv .row b{flex:none;width:84px;color:var(--dim);font-weight:600}
.sheet .kv .row span{color:var(--text)}
.sheet ul.setlist{margin:10px 0 0;padding:0;list-style:none;display:flex;gap:8px;flex-wrap:wrap}
.sheet ul.setlist li{font-size:12.5px;font-weight:600;color:var(--sub);background:var(--surface2);border:1px solid var(--line);border-radius:99px;padding:6px 12px}

/* footer */
footer{border-top:1px solid var(--line);padding:44px 0 52px;margin-top:30px}
.foot-grid{display:flex;gap:32px;flex-wrap:wrap;align-items:flex-start}
.foot-grid .brand{max-width:320px}
.foot-grid .brand p{color:var(--dim);font-size:13.5px;margin:10px 0 0}
.foot-links{display:flex;gap:40px;flex-wrap:wrap;margin-left:auto}
.foot-links div{display:grid;gap:8px;font-size:13.5px}
.foot-links b{font-size:12.5px;color:var(--dim);letter-spacing:.08em}
.foot-links button{border:0;background:none;padding:0;color:var(--sub);text-align:left;font-size:13.5px}
.foot-links button:hover{color:var(--brand)}
.foot-note{margin-top:30px;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--dim);display:flex;gap:14px;flex-wrap:wrap}

/* reveal */
.rv{opacity:0;transform:translateY(14px);transition:.5s var(--ease)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{opacity:1;transform:none;transition:none}.eye{animation:none}.page{animation:none}}

@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .g3,.g4,.strip,.steps{grid-template-columns:repeat(2,1fr)}
  .client{grid-template-columns:1fr}
  .foot-links{margin-left:0}
}
@media (max-width:640px){
  section{padding:56px 0}
  .wrap{padding:0 18px}
  .g2,.g3,.g4,.strip,.steps{grid-template-columns:1fr}
  .nav-in{gap:10px}
  .logo small{display:none}
  table.tools td:first-child{white-space:normal}
}

.product-placeholder{display:grid;place-items:center;width:72%;max-width:360px;min-height:105px;padding:18px;text-align:center;border:1px dashed var(--line);border-radius:20px;background:color-mix(in srgb,var(--surface) 64%,transparent);font-weight:700;color:var(--sub)}
.hero-art .product-placeholder{min-height:38%;margin-bottom:14%;font-size:clamp(15px,2vw,22px)}
.device-list{display:grid;gap:12px}.device-row .mono{overflow-wrap:anywhere}
.device-card{padding:12px;border:1px solid var(--line);border-radius:12px}
.device-actions{margin-top:10px}
.device-card details{margin-top:10px;color:var(--sub)}
.device-card summary{cursor:pointer;font-size:14px}
.device-edit{display:grid;gap:8px;margin-top:8px}
.device-edit label{display:grid;gap:4px;font-size:13px}
.device-edit button{justify-self:start}
.box-head h4{margin:0}.console .box a{color:var(--brand)}
@media(max-width:640px){.hero-art .product-placeholder{margin-bottom:62px}}
.call-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.call-list li{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
@media(max-width:500px){.call-list li{grid-template-columns:1fr auto}.call-list li .muted{grid-column:1;grid-row:2}.call-list li .tag{grid-column:2;grid-row:1}}