/* Chameleon home — dark starfield layout inspired by modern launch pages. System fonts only (CSP: font-src 'self'). */
:root{
 --bg:#000;--fg:#fff;--fg2:rgba(255,255,255,.72);--muted:rgba(255,255,255,.55);--line:rgba(255,255,255,.12);--line2:rgba(255,255,255,.2);
 --card:rgba(18,18,20,.72);--card2:rgba(255,255,255,.045);--pill:#1d1f23;--pill-h:#2a2d33;--light:#fff;--light-fg:#000;
 --blue:#4c8dff;--blue2:#2f6fe0;--orange:#ff8a5c;--mint:#7cdec9;--red:#ff6b6b;
 --nav:rgba(0,0,0,.55);--shadow:0 30px 80px rgba(0,0,0,.6);--glow:rgba(76,141,255,.22);
 --font:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI Variable Text","Segoe UI","Inter","Helvetica Neue",Roboto,Arial,sans-serif;
 --mono:ui-monospace,"SF Mono","Cascadia Code","JetBrains Mono",Consolas,monospace;
 --col:680px;--wide:1080px;--r:18px;
 color-scheme:dark;
}
html[data-theme="light"]{
 --bg:#fff;--fg:#0d0d0d;--fg2:rgba(0,0,0,.72);--muted:rgba(0,0,0,.52);--line:rgba(0,0,0,.1);--line2:rgba(0,0,0,.18);
 --card:rgba(250,250,251,.86);--card2:rgba(0,0,0,.035);--pill:#f0f0f1;--pill-h:#e5e5e7;--light:#0d0d0d;--light-fg:#fff;
 --nav:rgba(255,255,255,.7);--shadow:0 30px 80px rgba(20,30,60,.14);--glow:rgba(76,141,255,.16);
 color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;background:var(--bg)}
body{margin:0;background:transparent;color:var(--fg);font:400 17px/1.6 var(--font);letter-spacing:-.005em;-webkit-font-smoothing:antialiased;overflow-x:hidden;transition:color .4s}
html{transition:background-color .5s}
a{color:inherit}
::selection{background:var(--blue);color:#fff}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:fixed;left:12px;top:-60px;z-index:100;background:var(--light);color:var(--light-fg);padding:10px 16px;border-radius:999px;text-decoration:none}
.skip:focus{top:12px}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:8px}
#sky{position:fixed;inset:0;width:100vw;height:100vh;z-index:-1;display:block;pointer-events:none}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .35s,backdrop-filter .35s,border-color .35s;border-bottom:1px solid transparent}
.nav.scrolled{background:var(--nav);backdrop-filter:saturate(1.4) blur(18px);-webkit-backdrop-filter:saturate(1.4) blur(18px);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:64px;padding:0 32px}
.wordmark{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:19px;letter-spacing:-.03em;text-decoration:none}
.wm-dot{width:18px;height:18px;border-radius:50%;border:3.5px solid currentColor;position:relative}
.wm-dot:after{content:"";position:absolute;right:-6px;top:-6px;width:7px;height:7px;border-radius:50%;background:var(--mint)}
.nav-links{display:flex;gap:26px;font-size:14.5px}
.nav-links a{text-decoration:none;opacity:.86;transition:opacity .2s}
.nav-links a:hover,.nav-links a.active{opacity:1}
.nav-links a.active{text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:1px}
.nav-actions{margin-left:auto;display:flex;gap:10px;align-items:center}
.pill{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 18px;border-radius:999px;font:500 14.5px/1 var(--font);text-decoration:none;border:0;cursor:pointer;transition:background .2s,transform .2s,opacity .2s;white-space:nowrap}
.pill:active{transform:scale(.97)}
.pill-dark{background:var(--pill);color:var(--fg)}
.pill-dark:hover{background:var(--pill-h)}
.pill-light{background:var(--light);color:var(--light-fg)}
.pill-light:hover{opacity:.88}
.pill.big{height:48px;font-size:15.5px;width:100%}
.pill.disabled{opacity:.45;pointer-events:none}
.icon-btn{width:36px;padding:0}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.i-moon{fill:currentColor!important;stroke:none!important}
html[data-theme="dark"] .i-sun,html[data-theme="light"] .i-moon{display:none}
.menu-btn{display:none}
.arrow{font-size:.9em}

/* hero */
.hero{position:relative;min-height:min(100vh,980px);display:flex;align-items:flex-start;justify-content:center;overflow:hidden}
.hero-inner{position:relative;z-index:1;width:100%;max-width:980px;margin:0 auto;padding:calc(var(--nav-h,64px) + clamp(40px,11vh,120px)) 24px 140px;text-align:center;display:flex;flex-direction:column;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;margin:0 0 28px;padding:7px 14px;border:1px solid var(--line2);border-radius:999px;background:color-mix(in srgb,var(--bg) 60%,transparent);backdrop-filter:blur(6px);color:var(--fg2);font-size:13px;opacity:0;animation:fadeUp .9s .15s forwards}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 10px #4ade80;animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero-lead{max-width:620px;margin:26px auto 0;color:var(--fg2);font-size:clamp(17px,1.6vw,20px);line-height:1.5;opacity:0;animation:fadeUp 1s .9s forwards}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:34px;opacity:0;animation:fadeUp 1s 1.15s forwards}
.hero-btn{height:46px;padding:0 26px;font-size:15.5px}
.hero-title{margin:0;display:flex;justify-content:center;align-items:baseline;gap:.28em;font-weight:450;font-size:clamp(54px,8.4vw,128px);letter-spacing:-.035em;line-height:1;pointer-events:none}
.hero-title span{display:inline-block;will-change:transform,opacity,filter}
.hero-kicker{margin:40px 0 0;color:var(--muted);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;opacity:0;animation:fadeUp 1.2s 1.5s forwards}
body.play-intro .ht-left{animation:inLeft 2.2s cubic-bezier(.16,1,.3,1) both}
body.play-intro .ht-right{animation:inRight 2.2s cubic-bezier(.16,1,.3,1) both}
@keyframes inLeft{0%{transform:translateX(-18vw);opacity:0;filter:blur(14px)}35%{opacity:1}100%{transform:none;opacity:1;filter:none}}
@keyframes inRight{0%{transform:translateX(18vw);opacity:0;filter:blur(14px)}35%{opacity:1}100%{transform:none;opacity:1;filter:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.replay{position:absolute;right:28px;bottom:28px;width:36px;height:36px;border-radius:50%;border:0;background:var(--pill);color:var(--fg);cursor:pointer;display:grid;place-items:center;opacity:.85;transition:opacity .2s,transform .5s}
.replay:hover{opacity:1;transform:rotate(-120deg)}
.replay svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.scroll-cue{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);width:24px;height:38px;border:1.5px solid var(--line2);border-radius:14px;opacity:0;animation:fadeUp 1s 2.4s forwards}
.scroll-cue span{position:absolute;left:50%;top:8px;width:3px;height:7px;margin-left:-1.5px;border-radius:2px;background:var(--fg);animation:cue 1.8s infinite}
@keyframes cue{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(12px)}}

/* intro + demo */
.intro{padding:120px 24px 40px;text-align:center}
.display{font-weight:450;font-size:clamp(34px,4.4vw,56px);letter-spacing:-.03em;line-height:1.08;margin:0 auto 18px;max-width:900px}
.display-sub{color:var(--fg2);font-size:clamp(17px,1.6vw,20px);margin:0 auto 64px;max-width:640px}
.stage{position:relative;max-width:var(--wide);margin:0 auto;border-radius:28px;border:1px solid var(--line);background:linear-gradient(180deg,var(--card2),transparent 70%),var(--card);padding:56px 40px 28px;display:flex;gap:40px;align-items:center;justify-content:center;flex-wrap:wrap;box-shadow:var(--shadow);overflow:hidden;text-align:left}
.stage-glow{position:absolute;inset:-40% -10% auto;height:120%;background:radial-gradient(closest-side,var(--glow),transparent 70%);pointer-events:none;transition:background 1s}
.stage.on .stage-glow{background:radial-gradient(closest-side,rgba(124,222,201,.22),transparent 70%)}
.stage-caption{flex-basis:100%;text-align:center;color:var(--muted);font-size:13px;margin:10px 0 0}
.device{position:relative;z-index:1}
.phone{width:250px;height:500px;border-radius:40px;background:#07090d;border:1px solid rgba(255,255,255,.14);padding:14px;box-shadow:0 20px 60px rgba(0,0,0,.5),inset 0 0 0 6px #111418}
.phone-notch{position:absolute;top:18px;left:50%;width:74px;height:20px;margin-left:-37px;border-radius:12px;background:#000;z-index:2}
.app{height:100%;border-radius:28px;background:linear-gradient(180deg,#0f1722,#0b1119);color:#f2f6fb;padding:44px 16px 18px;display:flex;flex-direction:column;align-items:center;overflow:hidden}
.app-top{width:100%;display:flex;justify-content:space-between;align-items:center;font-size:13px}
.app-brand{display:flex;align-items:center;gap:7px;font-weight:600}
.app-brand i{width:18px;height:18px;border-radius:6px;background:var(--mint)}
.app-ver{color:#8fa1b6;font-size:11px}
.app-tabs{margin:14px 0 26px;width:100%;display:grid;grid-template-columns:1fr 1fr;gap:6px;font-size:11.5px}
.app-tabs span{background:#172232;border-radius:9px;text-align:center;padding:7px 0;color:#9fb0c4}
.app-tabs .on{background:#1f3b57;color:#fff}
.power{position:relative;width:128px;height:128px;border-radius:50%;border:0;cursor:pointer;background:radial-gradient(circle at 50% 35%,#27405c,#162435);display:grid;place-items:center;transition:background .6s,transform .2s;box-shadow:0 0 0 1px rgba(143,198,255,.25),0 16px 40px rgba(0,0,0,.5)}
.power:active{transform:scale(.96)}
.power svg{width:46px;height:46px;fill:none;stroke:#8fc6ff;stroke-width:3;stroke-linecap:round;transition:stroke .5s}
.power .ring{position:absolute;inset:-10px;border-radius:50%;border:1.5px solid rgba(143,198,255,.35);opacity:0}
.stage.connecting .power .ring{animation:ring 1.4s infinite}
.stage.connecting .power .r2{animation-delay:.7s}
.stage.on .power{background:radial-gradient(circle at 50% 35%,#1f6b5d,#12352f);box-shadow:0 0 0 1px rgba(124,222,201,.45),0 0 60px rgba(124,222,201,.35)}
.stage.on .power svg{stroke:var(--mint)}
@keyframes ring{0%{transform:scale(.85);opacity:.9}100%{transform:scale(1.35);opacity:0}}
.app-status{margin-top:26px;font-size:19px;font-weight:600}
.app-detail{margin-top:6px;font-size:12px;color:#8fa1b6;text-align:center;min-height:34px}
.app-proto{margin-top:auto;width:100%;display:flex;justify-content:space-between;background:#131d2a;border-radius:12px;padding:11px 14px;font-size:12.5px;color:#9fb0c4}
.app-proto b{color:#fff}
.window{width:min(560px,100%);border-radius:14px;overflow:hidden;background:#0e1520;border:1px solid rgba(255,255,255,.12);box-shadow:0 20px 60px rgba(0,0,0,.5);color:#f3f6fc}
.win-bar{height:34px;display:flex;align-items:center;gap:7px;padding:0 12px;background:#141e2c;font-size:12px;color:#acbbcd}
.win-bar i{width:10px;height:10px;border-radius:50%;background:#2a3a50}
.win-bar span{margin-left:8px}
.win-body{display:flex;min-height:300px}
.win-side{width:138px;background:#141e2c;border-right:1px solid #25354a;padding:14px 10px;display:flex;flex-direction:column;gap:4px;font-size:12px}
.win-side b{font-size:14px;margin:0 6px 12px}
.win-side span{padding:8px 8px;border-radius:8px;color:#c9d4e2}
.win-side .on{background:#223c53;color:#fff}
.win-side .dot:after{content:" •";color:var(--mint)}
.win-main{flex:1;padding:16px 18px;display:flex;flex-direction:column;gap:12px;min-width:0}
.win-title{font-size:18px;font-weight:600}
.win-card{background:#192433;border:1px solid #34465d;border-radius:12px;padding:14px}
.win-state{display:flex;gap:12px;align-items:center;margin-bottom:12px}
.win-state b{display:block;font-size:15px}
.win-state small{color:#acbbcd;font-size:11.5px}
.win-orb{flex:none;width:36px;height:36px;border-radius:50%;background:#223c53;box-shadow:inset 0 0 0 2px #8fc6ff;transition:all .6s}
.stage.on .win-orb{background:#16453c;box-shadow:inset 0 0 0 2px var(--mint),0 0 22px rgba(124,222,201,.5)}
.stage.connecting .win-orb{animation:pulse 1s infinite alternate}
@keyframes pulse{to{box-shadow:inset 0 0 0 2px #8fc6ff,0 0 18px rgba(143,198,255,.6)}}
.win-btn{background:#226db5;border:1px solid #448dce;border-radius:8px;text-align:center;padding:9px;font-size:13px;font-weight:600}
.stage.on .win-btn{background:#25354a;border-color:#40536d}
.win-stats{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:8px;background:#192433;border:1px solid #34465d;border-radius:12px;padding:10px 14px}
.win-stats small{display:block;color:#acbbcd;font-size:10px;letter-spacing:.06em;text-transform:uppercase}
.win-stats b{font-size:14px}
.spark{width:100%;height:46px}
.spark path{fill:none;stroke:var(--mint);stroke-width:2;vector-effect:non-scaling-stroke;opacity:.9}

/* prose */
.prose{max-width:var(--col);margin:40px auto 0;padding:0 24px;font-size:17px;line-height:1.72;color:var(--fg)}
.prose p{margin:0 0 22px}
.prose a{text-underline-offset:3px}
.update{color:var(--fg2)}
.rule{border:0;border-top:1px solid var(--line);margin:30px 0}

/* facts */
.facts{max-width:var(--wide);margin:70px auto 0;padding:0 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.fact{background:var(--bg);padding:28px 24px}
html[data-theme="dark"] .fact{background:rgba(0,0,0,.82)}
.fact b{display:block;font-size:30px;font-weight:500;letter-spacing:-.03em;margin-bottom:6px}
.fact span{color:var(--muted);font-size:14.5px;line-height:1.45}

/* sections */
section.how,section.features,section.download,section.guide,section.readme,section.faq{padding:120px 24px 0}
.section-h{font-weight:450;font-size:clamp(30px,3.4vw,44px);letter-spacing:-.03em;line-height:1.1;text-align:center;margin:0 0 14px}
.section-sub{color:var(--fg2);text-align:center;margin:0 auto 44px;max-width:620px}
.how .section-h,.features .section-h,.guide .section-h,.readme .section-h,.faq .section-h{margin-bottom:40px}

/* tabs & chart card */
.tabs{max-width:880px;margin:0 auto}
.tablist{display:flex;gap:4px;justify-content:center;flex-wrap:wrap;width:max-content;max-width:100%;margin:0 auto 22px;padding:4px;border:1px solid var(--line);border-radius:999px;background:var(--card)}
.tablist button{border:0;background:transparent;color:var(--fg2);font:500 13.5px/1 var(--font);padding:10px 16px;border-radius:999px;cursor:pointer;transition:background .2s,color .2s}
.tablist button:hover{color:var(--fg)}
.tablist button[aria-selected="true"]{background:var(--pill-h);color:var(--fg)}
.chart-card,.guide-card{border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:24px 26px 20px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:panelIn .5s ease both}
@keyframes panelIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.cc-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.cc-head h3{margin:0;font-size:16px;font-weight:600;letter-spacing:-.01em}
.cc-src{color:var(--muted);font-size:12.5px;font-family:var(--mono)}
.seg{display:inline-flex;padding:3px;border-radius:999px;background:var(--card2);border:1px solid var(--line)}
.seg button{border:0;background:transparent;color:var(--fg2);font:500 12.5px/1 var(--font);padding:8px 12px;border-radius:999px;cursor:pointer}
.seg button.on{background:var(--pill-h);color:var(--fg)}
.legend{list-style:none;margin:0 0 6px;padding:0;display:flex;gap:18px;flex-wrap:wrap;font-size:12.5px;color:var(--fg2)}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:7px;vertical-align:-1px}
.lg-ks{background:var(--blue)}.lg-citp{background:var(--orange)}.lg-ok{background:var(--mint)}.lg-muted{background:var(--line2)}.lg-block{background:var(--red)}
.cc-note{color:var(--fg2);font-size:14px;line-height:1.6;margin:8px 0 0}
.diagram{display:block;width:100%;height:auto;margin:6px 0}
.diagram text{fill:var(--fg2);font:500 13px var(--font);text-anchor:middle}
.diagram .sm{font-size:10.5px;fill:var(--muted)}
.grid-line{stroke:var(--line);stroke-dasharray:2 6}
.route{fill:none;stroke-width:3;stroke-linecap:round;transition:opacity .5s,stroke-width .5s}
.route.ks{stroke:url(#gks)}.route.citp{stroke:url(#gcitp);opacity:.28;stroke-dasharray:6 8}
.node circle{fill:var(--card2);stroke:var(--line2);stroke-width:1.5}
.node .glyph{fill:none;stroke:var(--fg);stroke-width:2;stroke-linecap:round}
.node text{fill:var(--fg)}
.rt{font-size:12.5px!important}
.ks-t{fill:var(--blue)!important}.citp-t{fill:var(--orange)!important}
.pkt{filter:drop-shadow(0 0 6px currentColor)}
.p-ks{fill:#8fc0ff;color:#4c8dff}.p-citp{fill:#ffc2a3;color:#ff8a5c;opacity:0}.p-ok{fill:var(--mint);color:var(--mint)}
.p2{opacity:.7}
.blocked{opacity:0;transition:opacity .4s}
.blocked circle{fill:var(--bg);stroke:var(--red);stroke-width:2}
.blocked path{stroke:var(--red);stroke-width:2.2;stroke-linecap:round}
.auto.strict .route.ks{opacity:.25;stroke-dasharray:6 8}
.auto.strict .route.citp{opacity:1;stroke-dasharray:none;stroke-width:3.5}
.auto.strict .p-ks{opacity:0}
.auto.strict .p-citp{opacity:1}
.auto.strict .p-citp.p2{opacity:.7}
.auto.strict .blocked{opacity:1}
.tunnel{fill:none;stroke:var(--mint);stroke-width:14;stroke-linecap:round;opacity:.16}
.plain{fill:none;stroke:var(--line2);stroke-width:2.5;stroke-dasharray:3 6}
.box rect{fill:var(--card2);stroke:var(--line2)}
.box.hl rect{stroke:var(--mint);fill:rgba(124,222,201,.07)}
.box text{fill:var(--fg)}
.tlabel{fill:var(--mint)!important;font-size:12px!important}
.leak{fill:none;stroke:var(--red);stroke-width:2;stroke-dasharray:4 5;opacity:.7;animation:dash 1.2s linear infinite}
@keyframes dash{to{stroke-dashoffset:-18}}
.shield rect{fill:rgba(255,107,107,.1);stroke:var(--red)}
.shield text{fill:var(--red);font-size:12px}
.pipeline{list-style:none;margin:18px 0 10px;padding:0;display:grid;grid-template-columns:repeat(7,1fr);gap:8px;counter-reset:s}
.pipeline li{position:relative;border:1px solid var(--line);border-radius:14px;padding:14px 10px;text-align:center;background:var(--card2);animation:step 7s infinite;animation-delay:calc(var(--i) * .8s)}
.pipeline li:not(:last-child):after{content:"";position:absolute;right:-9px;top:50%;width:10px;height:1px;background:var(--line2)}
.pipeline .pi{display:grid;place-items:center;width:30px;height:30px;margin:0 auto 10px;border-radius:50%;border:1px solid var(--line2);font-size:13px;font-weight:600}
.pipeline b{display:block;font-size:13.5px;font-weight:600}
.pipeline small{display:block;color:var(--muted);font-size:11.5px;line-height:1.35;margin-top:4px}
.pipeline .done .pi{background:var(--mint);color:#062a22;border-color:var(--mint)}
@keyframes step{0%,8%{border-color:var(--line);box-shadow:none}12%,22%{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue),0 0 26px var(--glow)}30%,100%{border-color:var(--line);box-shadow:none}}
.bars .axis{stroke:var(--line)}
.bars .ytick{fill:var(--muted);font-size:11px;text-anchor:end}
.bars .xl{fill:var(--fg2);font-size:12.5px}
.bars .vl{fill:var(--fg);font-size:12.5px;font-weight:600}
.bars .bar{transform-box:fill-box;transform-origin:bottom;transform:scaleY(0);transition:transform 1.1s cubic-bezier(.16,1,.3,1)}
.bars.shown .bar{transform:scaleY(1)}
.bars .b-app{fill:var(--blue2)}.bars .b-src{fill:var(--line2)}
.bars .yc{text-anchor:middle}
.empty{fill:var(--muted)!important}

/* quote */
.quote-wrap{padding:110px 24px 0}
.quote{max-width:820px;margin:0 auto;border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:30px 32px}
.quote blockquote{margin:0 0 18px;font-size:clamp(17px,1.7vw,20px);line-height:1.55;letter-spacing:-.01em}
.quote figcaption{color:var(--muted);font-size:13.5px}

/* features */
.feature-grid{max-width:var(--wide);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feature{border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:26px;transition:transform .35s cubic-bezier(.16,1,.3,1),border-color .3s}
.feature:hover{transform:translateY(-4px);border-color:var(--line2)}
.f-ico{width:42px;height:42px;border-radius:12px;background:var(--card2);border:1px solid var(--line);display:grid;place-items:center;margin-bottom:18px}
.f-ico svg{width:21px;height:21px;fill:none;stroke:var(--fg);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feature h3{margin:0 0 8px;font-size:18px;font-weight:600;letter-spacing:-.015em}
.feature p{margin:0;color:var(--fg2);font-size:15px;line-height:1.55}

/* downloads */
.dl-grid{max-width:var(--wide);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.dl{border:1px solid var(--line);border-radius:22px;background:var(--card);padding:24px;display:flex;flex-direction:column;gap:10px;min-width:0}
.dl-top{display:flex;justify-content:space-between;align-items:center}
.dl-plat{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.badge{font-size:11.5px;border:1px solid var(--line2);border-radius:999px;padding:3px 9px;color:var(--fg2)}
.dl h3{margin:4px 0 0;font-size:22px;font-weight:500;letter-spacing:-.02em}
.dl-req{margin:0;color:var(--fg2);font-size:13.5px;line-height:1.45;min-height:40px}
.dl-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);font-family:var(--mono);margin:auto 0 4px}
.hash{display:flex;gap:8px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:8px 8px 8px 11px;background:var(--card2)}
.hash code{flex:1;min-width:0;font:11px/1.35 var(--mono);color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.copy{flex:none;border:0;background:var(--pill);color:var(--fg);font:500 12px/1 var(--font);padding:7px 10px;border-radius:999px;cursor:pointer}
.copy:hover{background:var(--pill-h)}
.copy.ok{background:var(--mint);color:#062a22}
.dl-foot{max-width:var(--wide);margin:22px auto 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:14px}
.gh{display:inline-flex;gap:10px;align-items:center;text-decoration:none;font-weight:500}
.gh svg{width:22px;height:22px;fill:currentColor}
.muted{color:var(--muted);font-size:12.5px;font-family:var(--mono);word-break:break-all}
.notice{max-width:var(--wide);margin:18px auto 0;color:var(--fg2);font-size:14px;text-align:center}

/* guide */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;counter-reset:st}
.steps li{counter-increment:st;position:relative;border:1px solid var(--line);border-radius:14px;padding:20px 20px 18px 64px;background:var(--card2)}
.steps li:before{content:counter(st,decimal-leading-zero);position:absolute;left:18px;top:18px;font:600 13px/1 var(--mono);color:var(--muted);border:1px solid var(--line2);border-radius:9px;padding:7px 6px}
.steps h4{margin:0 0 6px;font-size:16px;font-weight:600}
.steps p{margin:0;color:var(--fg2);font-size:14.5px;line-height:1.55}
.gc-lead{margin:0 0 16px;color:var(--fg2)}
.code{border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:0 0 14px;background:rgba(0,0,0,.35)}
html[data-theme="light"] .code{background:#f6f7f9}
.code-head{display:flex;justify-content:space-between;align-items:center;padding:8px 10px 8px 14px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}
.code pre{margin:0;padding:14px 16px;overflow:auto;font:13px/1.6 var(--mono);color:var(--fg)}
.code .c{color:var(--muted)}

/* readme */
.doc{max-width:var(--wide);margin:0 auto;display:grid;grid-template-columns:220px 1fr;gap:40px;border:1px solid var(--line);border-radius:24px;background:var(--card);padding:34px}
.doc-toc{position:sticky;top:90px;align-self:start;display:flex;flex-direction:column;gap:2px;font-size:14px}
.doc-toc b{margin-bottom:10px;font-size:15px}
.doc-toc a{text-decoration:none;color:var(--fg2);padding:6px 10px;border-radius:8px;border-left:2px solid transparent}
.doc-toc a:hover{background:var(--card2);color:var(--fg)}
.doc-toc .toc-gh{margin-top:10px;color:var(--fg)}
.doc-body{min-width:0;font-size:15.5px;line-height:1.65}
.doc-body h3{font-size:20px;font-weight:600;letter-spacing:-.015em;margin:34px 0 12px;scroll-margin-top:90px}
.doc-lead{margin-top:0;color:var(--fg2)}
.doc-body code{font:13px var(--mono);background:var(--card2);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
.doc-body pre code{background:none;border:0;padding:0}
.table{overflow:auto;border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:500;font-size:12.5px;letter-spacing:.04em;text-transform:uppercase}
tr:last-child td{border-bottom:0}
.doc-list{padding-left:20px;margin:0}.doc-list li{margin:6px 0}
.doc-warn{border-left:3px solid var(--orange);padding:8px 14px;background:rgba(255,138,92,.08);border-radius:0 10px 10px 0;margin:14px 0 0;font-size:14.5px}

/* faq */
.faq-list{max-width:var(--col);margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:20px 40px 20px 0;font-size:17px;font-weight:500;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;border-right:1.6px solid var(--fg2);border-bottom:1.6px solid var(--fg2);transform:translateY(-70%) rotate(45deg);transition:transform .3s}
.faq details[open] summary:after{transform:translateY(-30%) rotate(-135deg)}
.faq details p{margin:0 0 20px;color:var(--fg2);font-size:15.5px;animation:panelIn .35s ease both}

/* footer */
.footer{margin-top:140px;border-top:1px solid var(--line);background:linear-gradient(180deg,transparent,var(--bg) 40%);padding:56px 32px 28px}
.foot-grid{max-width:var(--wide);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.foot-grid div{display:flex;flex-direction:column;gap:9px;font-size:14px}
.foot-grid b{font-size:13px;color:var(--muted);font-weight:500;margin-bottom:4px}
.foot-grid a{text-decoration:none;color:var(--fg2)}
.foot-grid a:hover{color:var(--fg)}
.foot-brand p{color:var(--muted);margin:6px 0 0;max-width:280px}
.foot-bottom{max-width:var(--wide);margin:44px auto 0;display:flex;justify-content:space-between;color:var(--muted);font-size:13px}
.link-btn{border:0;background:none;color:var(--fg2);font:inherit;cursor:pointer;text-decoration:underline;text-underline-offset:3px}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* responsive */
@media (max-width:1100px){.nav-links{gap:18px}.dl-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:980px){
 .menu-btn{display:inline-flex}
 .nav-links{position:fixed;top:64px;left:12px;right:12px;flex-direction:column;gap:0;padding:8px;border:1px solid var(--line);border-radius:18px;background:var(--nav);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);opacity:0;transform:translateY(-8px);pointer-events:none;transition:opacity .25s,transform .25s}
 .nav-links a{padding:13px 14px;border-radius:12px;font-size:16px}
 .nav.open .nav-links{opacity:1;transform:none;pointer-events:auto}
 .nav.open{background:var(--nav);backdrop-filter:blur(18px)}
 .feature-grid{grid-template-columns:repeat(2,1fr)}
 .facts{grid-template-columns:repeat(2,1fr)}
 .pipeline{grid-template-columns:repeat(4,1fr)}
 .doc{grid-template-columns:1fr;padding:24px}
 .doc-toc{position:static;flex-direction:row;flex-wrap:wrap;gap:6px}
 .doc-toc b{flex-basis:100%;margin:0}
 .doc-toc a{border:1px solid var(--line);border-radius:999px;padding:6px 12px}
}
@media (max-width:640px){
 body{font-size:16px}
 .nav-inner{padding:0 16px;gap:12px}
 .hide-sm{display:none}
 .hero-title{flex-direction:column;align-items:center;gap:6px}
 .hero-inner{padding-top:calc(var(--nav-h,64px) + 36px)}
 .hero-btn{flex:1 1 140px}
 .hero-kicker{font-size:11px;letter-spacing:.08em}
 @keyframes inLeft{0%{transform:translateX(-30px);opacity:0;filter:blur(12px)}100%{transform:none;opacity:1;filter:none}}
 @keyframes inRight{0%{transform:translateX(30px);opacity:0;filter:blur(12px)}100%{transform:none;opacity:1;filter:none}}
 .intro{padding-top:90px}
 .stage{padding:32px 14px 20px;gap:26px;border-radius:22px}
 .phone{width:230px;height:470px}
 .win-side{display:none}
 .feature-grid,.dl-grid,.steps{grid-template-columns:1fr}
 .pipeline{grid-template-columns:repeat(2,1fr)}
 .pipeline li:after{display:none}
 .chart-card,.guide-card{padding:18px 16px}
 .tablist{border-radius:18px}
 .foot-grid{grid-template-columns:1fr 1fr}
 .foot-brand{grid-column:1/-1}
 .footer{padding:40px 20px 24px}
 .foot-bottom{flex-direction:column;gap:10px}
 .facts{margin-top:50px}
 section.how,section.features,section.download,section.guide,section.readme,section.faq{padding-top:90px}
}
@media (prefers-reduced-motion:reduce){
 *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
 .reveal{opacity:1;transform:none}
}