:root {
  --bg:#1f1633;
  --bg-panel:#291d44;
  --bg-panel-2:#352656;
  --border:#4b3a72;
  --accent:#b8f229;
  --accent-dark:#8cc414;
  --pink:#ff4fb0;
  --violet:#8b6cff;
  --ink:#130c22;
  --text:#f5f1fc;
  --text-muted:#b4a7d1;
  --success:#5fe3a1;
  --warn:#ffc347;
  --error:#ff5d7c;
  --violet-shade:color-mix(in srgb, var(--violet) 56%, var(--ink));
  --violet-light:color-mix(in srgb, var(--violet) 62%, var(--text));
  --accent-a08:color-mix(in srgb, var(--accent) 8%, transparent);
  --accent-a22:color-mix(in srgb, var(--accent) 22%, transparent);
  --accent-a40:color-mix(in srgb, var(--accent) 40%, transparent);
  --violet-a18:color-mix(in srgb, var(--violet) 18%, transparent);
  --violet-a32:color-mix(in srgb, var(--violet) 32%, transparent);
  --ink-a60:color-mix(in srgb, var(--ink) 60%, transparent);
  --ink-a75:color-mix(in srgb, var(--ink) 75%, transparent);
  --bg-a82:color-mix(in srgb, var(--bg) 82%, transparent);
  --panel-a70:color-mix(in srgb, var(--bg-panel) 70%, transparent);
  --border-a60:color-mix(in srgb, var(--border) 60%, transparent);
  --grad-edge:linear-gradient(90deg,var(--pink),var(--accent));
  --radius-xs:4px;
  --radius:6px;
  --radius-mark:9px;
  --radius-pill:999px;
  --font-display:"Inter","Noto Sans SC",-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:"Inter","Noto Sans SC",-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --shadow-comic:4px 4px 0 var(--ink);
  --shadow-comic-lift:6px 6px 0 var(--ink);
  --shadow-soft:0 18px 40px -14px var(--ink-a75);
  --wrap:1328px;
  --gutter:56px;
  --bar-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html.nav-open{overflow:hidden}
body{
  margin:0;min-width:0;min-height:100vh;
  font:16px/1.6 var(--font-body);color:var(--text);
  background:radial-gradient(1100px 720px at 78% 40%,var(--violet-a18),transparent 66%),
    radial-gradient(900px 620px at -4% 112%,var(--ink-a75),transparent 70%),
    radial-gradient(700px 420px at 50% -12%,var(--ink-a60),transparent 70%),var(--bg);
  overflow-x:clip;
}
main,section,article,aside,footer{min-width:0}
a{color:inherit}
a:hover{color:var(--accent)}
button{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
img,svg{max-width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--radius-xs)}
[hidden]{display:none!important}
.wrap{width:100%;max-width:calc(var(--wrap) + var(--gutter)*2);margin-inline:auto;padding-inline:var(--gutter)}
.header-wrap{width:100%;max-width:min(100%,calc(1280px + var(--gutter)*2));margin-inline:auto;padding-inline:var(--gutter)}
.grain{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:0;opacity:.075;mix-blend-mode:overlay}
.grain rect{fill:var(--bg-panel)}
h1,h2,h3{font-family:var(--font-display);font-weight:900;line-height:1.2;text-wrap:balance;overflow-wrap:normal}
h1{font-size:clamp(34px,2.4vw + 14px,48px)}
h2{font-size:clamp(22px,1.2vw + 14px,32px)}
h3{font-size:clamp(19px,1vw + 12px,24px)}
h1 em,h2 em,h3 em{font-style:normal;color:var(--pink)}
.keep-word{white-space:nowrap}
p{margin-block:0 1.2em}
code,pre,.mono{font-family:var(--font-mono)}
:not(pre)>code{overflow-wrap:anywhere;color:var(--accent)}
pre{max-width:100%;overflow-x:auto;white-space:pre;padding:18px;background:var(--ink);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);line-height:1.7}
pre code{color:inherit}
.prose{min-width:0;max-width:76ch}
.prose p,.prose li{line-height:1.85}
.prose h2,.prose h3{scroll-margin-top:28px}
.prose h2{margin-block:2.2em .7em}
.prose h3{margin-block:1.8em .6em}
.section{position:relative;padding-top:88px;padding-bottom:88px;overflow-x:clip}
.sec-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.sec-head h2{margin:0}
.sec-note{margin:14px 0 0;max-width:46em;color:var(--text-muted)}
.rule-tag{display:inline-flex;align-items:center;flex-shrink:0;min-height:26px;padding:0 10px 0 9px;font:700 12px/1.2 var(--font-mono);letter-spacing:.05em;color:var(--accent);background:var(--accent-a08);border:1px solid var(--accent-a40);border-left:3px solid var(--accent);border-radius:var(--radius-xs)}
.panel,.card{min-width:0;color:var(--text);background:linear-gradient(var(--bg-panel),var(--bg-panel)) padding-box,var(--grad-edge) border-box;border:1px solid transparent;border-radius:var(--radius);box-shadow:var(--shadow-soft)}
.card{padding:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:10px 24px;border:1.5px solid transparent;border-radius:var(--radius);font:800 16px/1.3 var(--font-body);text-align:center;text-decoration:none;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}
.btn svg{width:20px;height:20px;flex-shrink:0}
.btn-store{background:var(--accent);color:var(--ink);box-shadow:var(--shadow-comic),0 16px 36px -12px var(--accent-a40)}
.btn-store:hover{color:var(--ink);transform:translate(-2px,-2px);box-shadow:var(--shadow-comic-lift),0 18px 40px -12px var(--accent-a40)}
.btn-store:active{transform:translate(2px,2px);box-shadow:none}
.btn-guide{color:var(--text);background:linear-gradient(var(--bg-panel),var(--bg-panel)) padding-box,linear-gradient(90deg,var(--pink),#587c16) border-box;box-shadow:var(--shadow-comic)}
.btn-guide svg{color:var(--accent)}
.btn-guide:hover{color:var(--text);transform:translate(-2px,-2px);box-shadow:var(--shadow-comic-lift)}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin:0 0 34px}
.topbar{position:relative;z-index:20;min-height:var(--bar-h);background:var(--bg-a82);border-bottom:1px solid var(--border-a60);backdrop-filter:blur(8px)}
.topbar-inner{min-height:var(--bar-h);display:flex;align-items:center;gap:22px}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;text-decoration:none;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{display:block;width:36px;height:36px;flex-shrink:0;border-radius:50%;box-shadow:var(--shadow-comic)}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:16px;white-space:nowrap}
.brand-sub{color:var(--text-muted);font-weight:700}
.mainnav{margin-left:auto;min-width:0}
.mainnav ul{display:flex;align-items:center;list-style:none;margin:0;padding:4px;gap:2px;background:var(--panel-a70);border:1px solid var(--border-a60);border-radius:var(--radius-pill)}
.mainnav li{flex-shrink:0}
.mainnav a{display:inline-flex;align-items:center;gap:8px;min-height:36px;padding:0 15px;border-radius:var(--radius-pill);font-size:14.5px;font-weight:600;color:var(--text-muted);text-decoration:none;opacity:.82;transition:opacity .18s ease,background-color .18s ease}
.mainnav a:hover{opacity:1;color:var(--text)}
.mainnav a[aria-current="page"]{opacity:1;color:var(--text);background:var(--bg-panel-2);box-shadow:inset 0 0 0 1px var(--accent-a40)}
.mainnav a[aria-current="page"]::before{content:"";width:7px;height:7px;flex-shrink:0;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px var(--accent-a22)}
.header-tools{display:flex;align-items:center;gap:8px;flex-shrink:0}
.lang-wrap{position:relative}
.lang,.menu-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 14px;font:600 14px/1 var(--font-body);color:var(--text);background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius-pill);cursor:pointer}
.lang svg{width:16px;height:16px;flex-shrink:0;color:var(--text-muted)}
.lang-short{display:none}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:176px;padding:6px;background:var(--bg-panel);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-soft);z-index:30}
.lang-menu a{display:block;min-height:44px;padding:10px 14px;text-decoration:none;border-radius:var(--radius-xs)}
.lang-menu a:hover,.lang-menu a[aria-current="page"]{background:var(--bg-panel-2);color:var(--accent)}
.menu-toggle{display:none;min-width:44px;padding:0}
.menu-toggle svg{width:20px;height:20px}
.mobile-nav{display:none}
.site-footer{position:relative;z-index:1;padding-top:72px;padding-bottom:26px;border-top:1px solid var(--border);background:var(--bg-panel);color:var(--text)}
.footer-grid{display:grid;grid-template-columns:minmax(240px,1.5fr) repeat(3,minmax(0,1fr));gap:36px}
.footer-about{max-width:30em;color:var(--text-muted);font-size:14px;margin-top:20px}
.footer-title{font:700 12px/1.4 var(--font-mono);letter-spacing:.06em;color:var(--accent);margin:0 0 14px}
.footer-list{list-style:none;margin:0;padding:0}
.footer-list li+li{margin-top:8px}
.footer-list a{font-size:14px;color:var(--text-muted);text-decoration:none;overflow-wrap:anywhere}
.footer-list a:hover{color:var(--accent)}
.footer-bottom{margin-top:56px;padding-top:20px;border-top:1px solid var(--border);color:var(--text-muted);font-size:13px}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.reveal.shown{opacity:1;transform:none}
.hero{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,46fr) minmax(0,54fr);align-items:center;column-gap:32px;min-height:max(680px,calc(100vh - var(--bar-h) - 40px));padding-block:20px;overflow-x:clip}
.hero-copy{position:relative;z-index:2;max-width:600px;min-width:0}
.eyebrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:0;font-size:13.5px;color:var(--text-muted)}
.hero-title{margin:22px 0;font-size:clamp(34px,2.4vw + 14px,48px);line-height:1.16;letter-spacing:-.005em}
.hero-title .line{display:block}
.hero-title .line+.line{margin-top:.14em}
.hero-title em{display:inline-block;transform:translateY(.15em);text-shadow:3px 3px 0 var(--ink)}
.lead{margin:0 0 30px;max-width:33em;font-size:17px;line-height:1.78;color:var(--text-muted)}
.lead strong{color:var(--text);font-weight:700;text-decoration:underline;text-decoration-color:var(--accent-a40);text-decoration-thickness:2px;text-underline-offset:5px}
.lead .term{font-family:var(--font-mono);font-size:.9em;color:var(--text)}
.devices{position:relative;list-style:none;margin:0;padding:22px 0 0;display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px}
.devices::before{content:"";position:absolute;top:0;left:0;width:min(100%,540px);height:1px;background:linear-gradient(90deg,var(--border),transparent)}
.devices li,.devices a{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--text);text-decoration:none}
.devices a:hover{color:var(--accent)}
.dev-ico{width:18px;height:18px;flex-shrink:0;color:var(--text-muted)}
.devices .devices-sep{width:1px;height:18px;background:var(--border)}
.hero-visual{position:relative;isolation:isolate;justify-self:end;width:100%;max-width:720px;margin:0;overflow-x:clip}
.hero-visual::before{content:"";position:absolute;inset:4% 2% 8% 10%;z-index:-1;background:radial-gradient(closest-side,var(--violet-a32),transparent 72%)}
.rig{display:block;width:100%;height:auto;overflow:visible}
.rig .s-pink{stop-color:var(--pink)}.rig .s-lime{stop-color:var(--accent)}
.rig .s-beam-0{stop-color:var(--accent);stop-opacity:.05}.rig .s-beam-1{stop-color:var(--accent);stop-opacity:.3}.rig .s-beam-2{stop-color:var(--accent);stop-opacity:.1}.rig .s-beam-3{stop-color:var(--accent);stop-opacity:0}
.rig .s-scr-0{stop-color:var(--violet)}.rig .s-scr-1{stop-color:var(--pink);stop-opacity:.6}.rig .s-scr-2{stop-color:var(--bg-panel-2)}
.rig .box-sh{fill:var(--ink);opacity:.7}.rig .box-side,.rig .box-top,.rig .box-front{stroke:var(--ink);stroke-width:5;stroke-linejoin:round}
.rig .box-side{fill:var(--violet-shade)}.rig .box-top{fill:var(--violet-light)}.rig .box-front{fill:var(--violet)}
.rig .gloss{fill:var(--text);opacity:.16}.rig .gloss-thin{fill:var(--text);opacity:.1}
.rig .vent{fill:none;stroke:var(--ink);stroke-width:3;stroke-linecap:round;opacity:.55}
.rig .screw{fill:var(--violet-shade);stroke:var(--ink);stroke-width:2}
.rig .plate,.rig .track{fill:var(--ink)}
.rig .plate-t{font-family:var(--font-mono);font-size:11px;fill:var(--text-muted)}
.rig .plate-t .on{fill:var(--accent);font-weight:700}
.rig .lbl{font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.06em;fill:var(--text)}
.rig .dot{stroke:var(--ink);stroke-width:2}.rig .dot-lime{fill:var(--accent)}.rig .dot-pink{fill:var(--pink)}
.rig .outlet-ring{fill:var(--ink)}.rig .outlet-in{fill:var(--bg-panel-2);stroke:var(--violet-light);stroke-width:2}.rig .outlet-hole{fill:var(--ink)}
.rig .jack{fill:var(--ink)}.rig .jack-ring{fill:var(--violet-shade)}
.rig .cable-o{fill:none;stroke:var(--ink);stroke-width:10;stroke-linecap:round}
.rig .cable-i{fill:none;stroke:var(--violet-light);stroke-width:4;stroke-linecap:round}
.rig .cable-o.thick{stroke-width:15}.rig .cable-i.thick{stroke-width:7;stroke:var(--violet)}
.rig .plug{fill:var(--ink)}.rig .plug-tip{fill:var(--accent)}
.rig .card{fill:var(--bg-panel);stroke-width:2}.rig .card-big{stroke-width:2.5}
.rig .card-sh{fill:var(--ink);opacity:.6}.rig .card-sh-soft{fill:var(--ink);opacity:.72}
.rig .ghost{fill:var(--bg-panel);stroke:var(--border);stroke-width:1.5;opacity:.6}
.rig .t-cap{font-family:var(--font-mono);font-size:10px;letter-spacing:.04em;fill:var(--text-muted)}
.rig .t-rule{font-family:var(--font-mono);font-size:12px;fill:var(--text)}
.rig .t-big{font-size:24px;font-weight:700}.rig .t-type{fill:var(--text-muted)}
.rig .t-proxy{fill:var(--accent);font-weight:700}.rig .t-reject{fill:var(--pink);font-weight:700}
.rig .t-cmt{font-family:var(--font-mono);font-size:10.5px;fill:var(--text-muted)}
.rig .phone-body{fill:var(--bg-panel);stroke:var(--ink);stroke-width:5;stroke-linejoin:round}
.rig .phone-btn,.rig .phone-island{fill:var(--ink)}
.rig .phone-block{fill:var(--violet);opacity:.55}.rig .phone-line{fill:var(--text);opacity:.55}.rig .phone-gloss{fill:var(--text);opacity:.08}
.rig .sig{transform-box:view-box;transform-origin:0 0;animation-duration:5.6s;animation-timing-function:linear;animation-iteration-count:infinite}
.rig .sig-glow{fill:var(--accent);opacity:.35}.rig .sig-core{fill:var(--accent)}
.rig .sig-p .sig-glow,.rig .sig-p .sig-core{fill:var(--pink)}
.rig .sig-in{opacity:0;transform:translate(210px,430px);animation-name:sig-in}
.rig .sig-o1{transform:translate(450px,111px);animation-name:sig-o1}
.rig .sig-o2{transform:translate(520px,261px);animation-name:sig-o2}
.rig .sig-o3{transform:translate(478px,403px);animation-name:sig-o3}
.rig .halo{opacity:0;transform-box:fill-box;transform-origin:center;animation:halo 5.6s ease-out infinite}
.rig .halo-lime{fill:var(--accent)}.rig .halo-pink{fill:var(--pink)}
@keyframes sig-in{0%{opacity:0;transform:translate(106px,567px)}3%{opacity:1}6%{transform:translate(124px,601px)}12%{transform:translate(159.5px,607.6px)}18%{transform:translate(194.3px,582.4px)}24%{transform:translate(210px,520px)}34%{opacity:1;transform:translate(210px,430px)}37%,100%{opacity:0;transform:translate(210px,430px)}}
@keyframes sig-o1{0%,36%{opacity:0;transform:translate(380px,280px)}38%{opacity:1}45%{transform:translate(409.1px,253.5px)}52%{transform:translate(418.8px,195.5px)}59%{transform:translate(426.4px,137.4px)}66%{opacity:1;transform:translate(450px,111px)}72%,100%{opacity:0;transform:translate(450px,111px)}}
@keyframes sig-o2{0%,36%{opacity:0;transform:translate(380px,330px)}38%{opacity:1}45%{transform:translate(423px,319.2px)}52%{transform:translate(453.8px,295.5px)}59%{transform:translate(482.7px,271.8px)}66%{opacity:1;transform:translate(520px,261px)}72%,100%{opacity:0;transform:translate(520px,261px)}}
@keyframes sig-o3{0%,36%{opacity:0;transform:translate(380px,380px)}38%{opacity:1}45%{transform:translate(408.3px,383.6px)}52%{transform:translate(426px,391.5px)}59%{transform:translate(445.3px,399.3px)}66%{opacity:1;transform:translate(478px,403px)}72%,100%{opacity:0;transform:translate(478px,403px)}}
@keyframes halo{0%,34%{opacity:0;transform:scale(1)}37%{opacity:.85;transform:scale(1.1)}60%,100%{opacity:0;transform:scale(2.8)}}
.next{position:relative;z-index:1;padding-top:26px;padding-bottom:96px}
.next::before{content:"";position:absolute;top:0;left:50%;width:min(var(--wrap),calc(100% - var(--gutter)*2));height:1px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,var(--border) 20%,var(--border) 80%,transparent)}
@media(min-width:1101px){.hero-title .line{white-space:nowrap}}
@media(max-width:1100px){
  .mainnav{display:none}
  .header-tools{margin-left:auto}
  .menu-toggle{display:inline-flex}
  .mobile-nav{display:block;position:absolute;left:0;right:0;top:100%;padding:12px var(--gutter) 20px;background:var(--bg-panel);color:var(--text);border-bottom:1px solid var(--border);max-height:calc(100dvh - var(--bar-h));overflow-y:auto;overscroll-behavior:contain;box-shadow:var(--shadow-soft)}
  .mobile-nav ul{list-style:none;padding:0;margin:0}
  .mobile-nav a{display:block;width:100%;min-height:44px;padding:11px 14px;border-radius:var(--radius-xs);text-decoration:none}
  .mobile-nav a:hover,.mobile-nav a[aria-current="page"]{background:var(--bg-panel-2);color:var(--accent)}
  .mobile-nav-label{margin:16px 14px 4px;color:var(--text-muted);font:700 12px var(--font-mono)}
}
@media(max-width:1100px){
  .hero{grid-template-columns:1fr;row-gap:40px;padding-block:48px 56px}
  .hero-copy{max-width:640px}
  .hero-visual{justify-self:center;max-width:620px}
  .brand-sub{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:768px){
  .hero-title,h1{font-size:clamp(24px,4vw + 12px,30px)}
  .hero{min-height:0}
}
@media(max-width:640px){
  :root{--gutter:20px}
  .lead{font-size:15.5px}
  .btn{min-height:50px;padding:10px 18px;font-size:15px}
  .devices{gap:10px 14px}
  .lang-full{display:none}.lang-short{display:inline}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-grid>:first-child{grid-column:1/-1}
  .section{padding-top:62px;padding-bottom:62px}
  .tilt,[class*="tilt-"]{transform:none!important}
}
@media(max-width:400px){
  .brand-name{font-size:14px}
  .lang{padding-inline:10px}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid>:first-child{grid-column:auto}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rig .sig,.rig .halo{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
  .btn,.mainnav a{transition:none}
}