:root {
  --bg:#F4F4F1;
  --panel:#FFFFFF;
  --panel-2:#ECEBE7;
  --line:#E2E0DA;
  --line-strong:#D3D0C8;
  --accent:#1E5BFF;
  --accent-dark:#0E3FC7;
  --accent-soft:#E8EEFF;
  --text:#1E1C1A;
  --text-muted:#5F5C57;
  --text-faint:#8A867F;
  --success:#1F9D55;
  --success-ring:rgba(31,157,85,.16);
  --warn:#E8704F;
  --error:#D6383A;
  --ink:#1E1B1A;
  --ink-2:#292523;
  --ink-3:#151312;
  --ink-line:#3A3431;
  --on-ink:#F4F4F1;
  --on-ink-muted:#A9A49C;
  --chrome-dot:#DAD7D0;
  --knob:#FFFFFF;
  --clear:transparent;
  --veil:rgba(30,27,26,.26);
  --font-display:'Inter','Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  --font-body:'Inter','Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;
  --r-window:20px;
  --r-card:24px;
  --r-phone:32px;
  --r-screen:26px;
  --r-tile:14px;
  --r-md:12px;
  --r-sm:8px;
  --r-chip:9px;
  --r-menu:10px;
  --r-mark:18px;
  --r-pill:999px;
  --r-circle:50%;
  --shadow-soft:0 1px 2px rgba(30,27,26,.04),0 10px 28px -14px rgba(30,27,26,.10);
  --shadow-lift:0 2px 4px rgba(30,27,26,.05),0 18px 36px -16px rgba(30,27,26,.18);
  --shadow-window:0 1px 3px rgba(30,27,26,.06),0 30px 64px -20px rgba(30,27,26,.22);
  --shadow-phone:0 3px 8px rgba(30,27,26,.10),0 42px 84px -22px rgba(30,27,26,.36);
  --shadow-knob:0 1px 2px rgba(30,27,26,.22);
  --shadow-fab:0 8px 16px -6px rgba(30,91,255,.50);
  --shadow-anchor:0 0 0 4px rgba(236,235,231,1);
  --shadow-item:0 1px 2px rgba(30,27,26,.05);
  --ease:cubic-bezier(.2,.7,.2,1);
  --gutter:64px;
  --content-width:1440px;
  --reading-width:840px;
  --header-height:72px;
  --space-section:96px;
  --weight-regular:400;
  --weight-medium:500;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:24px}
html.nav-open{overflow:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
img,svg{max-width:100%;vertical-align:middle}
img{height:auto}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button,select,input,textarea{max-width:100%}
a{color:var(--accent);text-underline-offset:4px}
a:hover{color:var(--accent-dark)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
button:disabled{cursor:not-allowed}
[hidden]{display:none!important}
p{margin:0}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:var(--weight-regular);text-wrap:balance;overflow-wrap:break-word}
h1{font-size:clamp(34px,3.4vw,48px);line-height:1.12;letter-spacing:-.02em}
h2{font-size:clamp(26px,3vw,36px);line-height:1.2;letter-spacing:-.02em}
h3{font-size:24px;line-height:1.3;letter-spacing:-.01em}
strong{font-weight:var(--weight-medium)}
code,kbd,pre{font-family:var(--font-mono)}
code{overflow-wrap:anywhere;font-size:.9em}
pre{max-width:100%;min-width:0;overflow-x:auto;padding:24px;border:1px solid var(--ink-line);border-radius:var(--r-md);background:var(--ink);color:var(--on-ink);font-size:13px;line-height:1.8;tab-size:2}
pre code{white-space:pre;overflow-wrap:normal;font-size:inherit}
figure{margin:0}
:where(main,section,article,aside,nav,div,li){min-width:0}
.wrap{width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:var(--gutter)}
.reading{max-width:calc(var(--reading-width) + var(--gutter)*2);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-top:var(--space-section);padding-bottom:var(--space-section)}
.section--white{background:var(--panel);color:var(--text)}
.section--tone{background:var(--panel-2);color:var(--text)}
.section__intro{max-width:42em;margin-bottom:48px}
.section__intro h2{margin-top:0;margin-bottom:16px}
.section__intro p,.muted{color:var(--text-muted)}
.nowrap{white-space:nowrap}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.icon{width:20px;height:20px;flex-shrink:0}
.prose{min-width:0;line-height:1.85}
.prose p,.prose ul,.prose ol,.prose pre,.prose figure{margin-block:0 24px}
.prose h2{margin-top:64px;margin-bottom:24px;scroll-margin-top:24px}
.prose h3{margin-top:36px;margin-bottom:16px}
.prose li+li{margin-top:8px}
.prose :where(div,figure){max-width:100%;min-width:0}
.prose :not(pre)>code{padding:2px 5px;border-radius:var(--r-sm);background:var(--panel-2);color:var(--text)}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:12px 24px;border-radius:var(--r-pill);font-size:15px;font-weight:var(--weight-medium);letter-spacing:-.005em;text-decoration:none;text-align:center;line-height:24px;border:1px solid var(--clear);transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn svg{width:18px;height:18px;flex-shrink:0}
.btn--primary{background:var(--accent);color:var(--panel);border-color:var(--accent)}
.btn--primary:hover,.btn--primary.is-hover{background:var(--accent-dark);color:var(--panel);border-color:var(--accent-dark)}
.btn--ghost{background:var(--panel);color:var(--text);border-color:var(--line-strong)}
.btn--ghost:hover,.btn--ghost.is-hover{background:var(--panel);color:var(--text);border-color:var(--text)}
.btn--text{background:var(--clear);color:var(--accent);padding-inline:0}
.btn:active{box-shadow:inset 0 0 0 2px var(--line-strong)}
.btn:disabled,.btn[aria-disabled="true"]{background:var(--panel-2);border-color:var(--line);color:var(--text-muted);box-shadow:none}
.btn.is-focus{outline:2px solid var(--accent);outline-offset:3px}
.panel,.card{padding:32px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--panel);color:var(--text);box-shadow:var(--shadow-soft);min-width:0}
.panel--tone{background:var(--panel-2);color:var(--text)}
.card h3{margin-top:0;margin-bottom:12px}
.card p{color:var(--text-muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.badge{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;max-width:100%;padding:4px 12px 4px 10px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg);color:var(--text-muted);font-size:12.5px;line-height:20px;overflow-wrap:anywhere}
.badge__dot{width:7px;height:7px;border-radius:var(--r-circle);background:var(--success);box-shadow:0 0 0 3px var(--success-ring);flex-shrink:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.chip{display:inline-flex;align-items:center;min-height:30px;max-width:100%;padding:4px 13px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg);color:var(--text);font-size:12.5px;line-height:20px;overflow-wrap:anywhere}
.chip--mono{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.01em}
.reveal{opacity:1;transform:none}
.reveal.is-waiting{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}
.topbar{position:relative;z-index:40;border-bottom:1px solid var(--line);background:var(--bg);color:var(--text)}
.topbar__inner{width:100%;max-width:min(100%,calc(1280px + var(--gutter)*2));margin-inline:auto;padding-inline:var(--gutter);height:71px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex-shrink:0}
.brand:hover{color:var(--text)}
.brand__mark{width:32px;height:32px;display:block;flex-shrink:0}
.brand__name{font-size:16px;font-weight:var(--weight-medium);letter-spacing:-.01em;white-space:nowrap}
.mainnav{margin-left:auto;min-width:0}
.mainnav__list{display:flex;align-items:center;list-style:none;margin:0;padding:0;gap:2px}
.mainnav__link{display:block;padding:7px 14px;border-radius:var(--r-pill);font-size:14px;line-height:20px;color:var(--text-muted);text-decoration:none;white-space:nowrap;transition:background-color .2s var(--ease),color .2s var(--ease)}
.mainnav__link:hover{color:var(--text);background:var(--panel-2)}
.mainnav__link.is-current{background:var(--accent);color:var(--panel)}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.language-box{position:relative}
.lang{display:inline-flex;align-items:center;gap:7px;flex-shrink:0;padding:6px 12px 6px 10px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--clear);color:var(--text);font:inherit;font-size:13.5px;line-height:20px;white-space:nowrap}
.lang:hover{border-color:var(--line-strong);background:var(--panel);color:var(--text)}
.lang__globe{width:16px;height:16px;color:var(--text-muted);flex-shrink:0}
.lang__caret{color:var(--text-muted);font-size:11px}
.lang__short{display:none}
.language-menu{position:absolute;right:0;top:calc(100% + 12px);min-width:180px;padding:8px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--panel);color:var(--text);box-shadow:var(--shadow-lift);list-style:none;margin:0;z-index:3}
.language-menu a{display:block;padding:10px 14px;min-height:44px;border-radius:var(--r-sm);color:var(--text);text-decoration:none}
.language-menu a:hover,.language-menu a[aria-current]{background:var(--accent-soft);color:var(--accent-dark)}
.menu-toggle{display:none;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--panel);color:var(--text)}
.menu-toggle svg{width:20px;height:20px}
.mobile-nav{display:none}
.nav-veil{position:fixed;inset:var(--header-height) 0 0;z-index:30;border:0;background:var(--veil);color:var(--text)}
.site-footer{padding-top:72px;padding-bottom:24px;border-top:1px solid var(--line);background:var(--panel-2);color:var(--text)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.3fr .8fr;gap:40px}
.footer-brand p{margin-top:20px;max-width:26em;font-size:14px;color:var(--text-muted)}
.footer-heading{margin:0 0 18px;font-size:14px;font-weight:var(--weight-medium)}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-list a{color:var(--text-muted);font-size:14px;text-decoration:none;overflow-wrap:anywhere}
.footer-list a:hover{color:var(--accent)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;margin-top:56px;padding-top:24px;border-top:1px solid var(--line-strong);font-size:13px;color:var(--text-muted)}
.footer-bottom a{color:var(--text-muted)}
.hero{padding-top:24px;padding-bottom:56px;overflow-x:clip}
.hero__grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-template-rows:532px 132px;gap:16px}
.cell{border-radius:var(--r-card);position:relative}
.lead{grid-column:1 / span 5;grid-row:1 / span 2;background:var(--panel);color:var(--text);border:1px solid var(--line);box-shadow:var(--shadow-soft);padding:44px 44px 36px;display:flex;flex-direction:column;justify-content:space-between}
.lead__title{margin:28px 0 0;font-family:var(--font-display);font-weight:var(--weight-regular);font-size:clamp(30px,2.4vw + 14px,48px);line-height:1.08;letter-spacing:-.025em;color:var(--text)}
.lead__title span{display:block}
.lead__desc{margin-top:24px;font-size:15.5px;line-height:1.72;color:var(--text-muted);max-width:30em}
.lead__desc strong{color:var(--text);font-weight:var(--weight-medium)}
.platforms{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.platforms__label{font-size:12px;color:var(--text-muted);letter-spacing:.02em}
.platforms__list{display:flex;flex-wrap:wrap;gap:8px 18px;margin:10px 0 0;padding:0;list-style:none}
.platform{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--text);font-size:13.5px}
.platform__chip{width:28px;height:28px;border-radius:var(--r-chip);display:grid;place-items:center;background:var(--bg);color:var(--text);border:1px solid var(--line);flex-shrink:0;transition:border-color .2s var(--ease),color .2s var(--ease)}
.platform__chip svg{width:14px;height:14px}
.platform:hover{color:var(--accent)}
.platform:hover .platform__chip{border-color:var(--accent);color:var(--accent)}
.facts{grid-column:6 / span 7;grid-row:2;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.fact{display:flex;flex-direction:column;justify-content:space-between;padding:18px 22px;border-radius:var(--r-card);text-decoration:none;color:var(--text);border:1px solid var(--line);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.fact:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);color:var(--text)}
.fact--white{background:var(--panel);color:var(--text);box-shadow:var(--shadow-soft)}
.fact--tone{background:var(--bg);color:var(--text)}
.fact--deep{background:var(--panel-2);color:var(--text)}
.fact__head{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-muted);letter-spacing:.02em}
.fact__value{font-size:21px;line-height:1.2;letter-spacing:-.015em}
.fact__value--mono{font-family:var(--font-mono);font-size:15px;letter-spacing:0}
.fact__value--mono i{font-style:normal;color:var(--accent)}
.fact__note{font-size:12.5px;line-height:1.5;color:var(--text-muted)}
.cores{background:var(--ink);color:var(--on-ink);padding-top:96px;padding-bottom:112px}
.cores__eyebrow{text-align:center;font-size:14px;font-weight:var(--weight-medium);color:var(--on-ink-muted);letter-spacing:.02em}
.cores__title{margin:14px 0 16px;text-align:center;font-size:36px;line-height:1.2;letter-spacing:-.02em}
.cores__lead{max-width:40em;margin:0 auto;text-align:center;font-size:16px;line-height:1.75;color:var(--on-ink-muted)}
.cores__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:56px}
.core{display:grid;grid-template-columns:72px 1fr;gap:22px;padding:28px;border-radius:var(--r-card);background:var(--ink-2);color:var(--on-ink);border:1px solid var(--ink-line)}
.core__mark{width:72px;height:72px;border-radius:var(--r-mark);background:var(--ink-3);color:var(--on-ink-muted);display:grid;place-items:center;font-family:var(--font-mono);font-size:24px}
.core__mark svg{width:40px;height:40px}
.core__mark--accent{color:var(--warn)}
.core__name{margin:0;font-size:20px;font-weight:var(--weight-regular);letter-spacing:-.01em;color:var(--on-ink)}
.core__text{margin-top:10px;font-size:14.5px;line-height:1.7;color:var(--on-ink-muted)}
.core__link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;color:var(--on-ink);text-decoration:underline;text-underline-offset:5px;text-decoration-color:var(--ink-line)}
.core__link:hover{color:var(--on-ink);text-decoration-color:var(--on-ink)}
@media(max-width:1280px){
  :root{--gutter:40px}
  .mainnav__link{padding:7px 11px}
  .topbar__inner{gap:16px}
  .status-item--route,.status-sep--route{display:none}
}
@media(max-width:1120px){
  .brand__name{display:none}
  .mainnav__link{padding:7px 9px}
}
@media(max-width:1040px){
  .hero__grid{grid-template-columns:1fr;grid-template-rows:auto}
  .lead,.stage,.facts{grid-column:1;grid-row:auto}
  .lead{gap:40px}
  .stage{height:532px}
  .cores__grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:960px){
  .mainnav{display:none}
  .header-tools{margin-left:auto}
  .menu-toggle{display:inline-flex}
  .brand__name{display:inline}
  .mobile-nav:not([hidden]){display:block;position:absolute;top:100%;left:0;right:0;max-height:calc(100dvh - var(--header-height));overflow-y:auto;overscroll-behavior:contain;padding:16px var(--gutter) 24px;background:var(--panel);color:var(--text);border-bottom:1px solid var(--line);box-shadow:var(--shadow-lift);z-index:2}
  .mobile-nav ul{list-style:none;margin:0;padding:0}
  .mobile-nav a{display:flex;align-items:center;width:100%;min-height:46px;padding:10px 16px;border-radius:var(--r-md);color:var(--text-muted);text-decoration:none}
  .mobile-nav a:hover{background:var(--panel-2);color:var(--text)}
  .mobile-nav a.is-current{background:var(--accent);color:var(--panel)}
  .mobile-nav__languages{margin-top:16px!important;padding-top:16px!important;border-top:1px solid var(--line)}
  .mobile-nav__languages a[aria-current]{color:var(--accent-dark);background:var(--accent-soft)}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:768px){
  h1,.lead__title{font-size:clamp(24px,4vw,30px);line-height:1.15;letter-spacing:-.02em}
}
@media(max-width:640px){
  :root{--gutter:20px;--space-section:64px}
  .topbar__inner{gap:10px}
  .brand__name{font-size:14px}
  .header-tools{gap:8px;margin-left:auto}
  .lang__text{display:none}
  .lang__short{display:inline}
  .lead{padding:28px 24px 26px}
  .lead__title span{white-space:normal}
  .stage{height:470px}
  .facts{grid-template-columns:1fr}
  .fact{gap:10px}
  .cores{padding-top:72px;padding-bottom:80px}
  .cores__title{font-size:26px}
  .core{grid-template-columns:1fr}
  .card-grid,.footer-grid{grid-template-columns:1fr}
  .panel,.card{padding:24px}
  .footer-grid{gap:32px}
  .site-footer{padding-top:48px}
  .chips{flex-direction:row;flex-wrap:wrap}
  .tilt,[data-tilt]{transform:none!important}
  pre{padding:16px}
}
@media(max-width:360px){
  .brand__name{font-size:12px}
  .brand{gap:6px}
  .brand__mark{width:28px;height:28px}
  .lang{padding-inline:8px}
  .lang__globe{display:none}
  .lead{padding-inline:20px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal.is-waiting{opacity:1;transform:none}
  .fact:hover{transform:none}
}