:root {
  --bg:#F9F7F9;
  --bg-panel:#FFFFFF;
  --bg-panel-2:#F1EDF2;
  --border:#E4DDE6;
  --border-soft:#EEE8EF;
  --accent:#521554;
  --accent-dark:#3A0D3C;
  --accent-bright:#7B2E7D;
  --accent-search:#6E2D70;
  --lilac:#F0DDF2;
  --lilac-wash:#F7EEF8;
  --text:#1D1420;
  --text-muted:#6B6070;
  --success:#1E9E6A;
  --warn:#E0A21B;
  --error:#D2344F;
  --hero-top:#FFFFFF;
  --hero-bottom:#F4F0F4;
  --spot-pink:#F7C9D4;
  --spot-peach:#FBE3D2;
  --spot-mint:#D8F3E6;
  --spot-lemon:#F7F5D2;
  --flag-red:#C8102E;
  --flag-red-hk:#DE2910;
  --flag-blue:#1F3E8C;
  --flag-white:#FFFFFF;
  --on-dark:#FFFFFF;
  --on-dark-85:rgba(255,255,255,.85);
  --on-dark-70:rgba(255,255,255,.7);
  --on-dark-30:rgba(255,255,255,.3);
  --on-dark-20:rgba(255,255,255,.2);
  --on-dark-14:rgba(255,255,255,.14);
  --on-dark-08:rgba(255,255,255,.08);
  --plum-06:rgba(82,21,84,.06);
  --plum-08:rgba(82,21,84,.08);
  --plum-12:rgba(82,21,84,.12);
  --plum-20:rgba(82,21,84,.2);
  --plum-30:rgba(82,21,84,.3);
  --success-ring:rgba(30,158,106,.16);
  --shade-15:rgba(29,20,32,.15);
  --veil:rgba(29,20,32,.35);
  --transparent:transparent;
  --font-display:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans","Apple SD Gothic Neo","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans","Malgun Gothic","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --r-xs:6px;
  --r-sm:8px;
  --r-md:12px;
  --r-card:14px;
  --r-lg:20px;
  --r-xl:24px;
  --r-pill:999px;
  --r-round:50%;
  --r-mark:30%;
  --r-search:7px;
  --r-control:10px;
  --r-float:16px;
  --r-icon:9px;
  --r-flag:4px;
  --r-tab:2px;
  --r-arc:50% 50% 0 0 / 100% 100% 0 0;
  --shadow-window:inset 0 1px 0 var(--on-dark-30),inset 0 0 0 1px var(--on-dark-08),0 2px 6px var(--plum-08),0 28px 56px -28px var(--plum-12),0 60px 120px -24px var(--plum-12);
  --shadow-float:inset 0 1px 0 var(--bg-panel),0 4px 10px -4px var(--plum-08),0 20px 44px -16px var(--plum-20);
  --shadow-panel:inset 0 1px 0 var(--bg-panel),0 20px 56px -28px var(--plum-12);
  --gutter:24px;
  --content-width:1280px;
  --header-height:64px;
  --toc-offset:16px;
  --anchor-offset:96px;
  --space-section:72px;
  --ease: cubic-bezier(.2,.65,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px;scroll-behavior:smooth}
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;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer;color:inherit}
button:disabled{cursor:not-allowed}
button{border:0}
:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--r-xs)}
:where(.feature-band,.cta-band) :where(a,button):focus-visible{outline-color:var(--on-dark)}
img{max-width:100%;height:auto;display:block}
svg{flex-shrink:0}
ul,ol{margin:0;padding:0;list-style:none}
p,h1,h2,h3,h4,figure,blockquote{margin:0}
h1,h2,h3,h4{font-family:var(--font-display);text-wrap:balance;overflow-wrap:break-word}
h1{font-size:clamp(52px,5vw,68px);font-weight:900;line-height:1.12;letter-spacing:-.02em}
h2{font-size:clamp(28px,3vw,40px);font-weight:900;line-height:1.2;letter-spacing:-.02em}
h3{font-size:22px;line-height:1.35;font-weight:800}
small{font-size:13px}
code{font-family:var(--font-mono);font-size:.9em;overflow-wrap:anywhere}
pre{max-width:100%;overflow-x:auto;padding:20px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--bg-panel-2)}
pre code{overflow-wrap:normal;white-space:pre}
[hidden]{display:none!important}
.wrap{width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-top:var(--space-section);padding-bottom:var(--space-section)}
.stack{display:grid;gap:24px}
.grid{display:grid;gap:24px}
.grid>*{min-width:0}
.grid--three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--five{grid-template-columns:repeat(5,minmax(0,1fr))}
.muted{color:var(--text-muted)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--accent)}
.section-head{max-width:760px;margin:0 auto 32px;text-align:center}
.section-head p{margin-top:12px;color:var(--text-muted)}
.panel,.card{min-width:0;border:1px solid var(--border);border-radius:var(--r-xl);padding:24px;background:var(--bg-panel);box-shadow:var(--shadow-panel)}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.no-break{white-space:nowrap}
.prose{width:100%;min-width:0;max-width:860px;margin-inline:auto;overflow-wrap:break-word}
.prose p,.prose ul,.prose ol,.prose blockquote,.prose pre{margin-block:20px}
.prose h2{margin-block:48px 20px}
.prose h3{margin-block:28px 12px}
.prose ul{padding-left:24px;list-style:disc}
.prose ol{padding-left:24px;list-style:decimal}
.prose li+li{margin-top:8px}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.prose section[id]{scroll-margin-top:var(--anchor-offset)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 30px;border-radius:var(--r-sm);font-size:16px;font-weight:700;letter-spacing:.03em;white-space:nowrap;flex-shrink:0;transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease}
.btn--solid,.btn-primary{background:linear-gradient(180deg,var(--accent-bright) 0%,var(--accent) 60%);color:var(--on-dark);box-shadow:inset 0 1px 0 var(--on-dark-20),0 12px 24px -12px var(--plum-30)}
.btn--solid:hover,.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn--outline,.btn-secondary{background:var(--bg-panel);color:var(--accent);box-shadow:inset 0 0 0 2px var(--accent)}
.btn--outline:hover,.btn-secondary:hover{background:var(--lilac-wash);transform:translateY(-1px)}
.btn:active{transform:translateY(0);box-shadow:inset 0 0 0 2px var(--plum-30)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;pointer-events:none}
.btn--small{height:40px;padding-inline:18px;font-size:14px}
.btn__arrow{font-family:var(--font-body);font-weight:700}
.cta-row{margin-top:24px;display:flex;justify-content:center;gap:12px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand__logo{width:32px;height:32px;flex-shrink:0}
.brand__word{font-family:var(--font-display);font-weight:900;font-size:21px;letter-spacing:-.025em;color:var(--text)}
.topbar{position:relative;z-index:50;background:var(--hero-top)}
.topbar__inner{max-width:1280px;margin:0 auto;height:var(--header-height);padding:0 32px;display:flex;align-items:center;gap:28px;flex-wrap:nowrap}
.dotnav{flex:1;min-width:0}
.dotnav ul{display:flex;justify-content:center;align-items:center;list-style:none;margin:0;padding:0}
.dotnav li{display:flex;align-items:center;min-width:0}
.dotnav li+li::before{content:"·";margin:0 10px;color:var(--border);font-weight:900;font-size:18px;line-height:1}
.dotnav a{display:inline-flex;align-items:center;min-height:32px;white-space:nowrap;font-size:14px;font-weight:500;color:var(--text);padding:6px 2px;transition:color .2s ease}
.dotnav a:hover{color:var(--accent)}
.dotnav a[aria-current="page"]{color:var(--accent);font-weight:700}
.topbar__end{display:flex;align-items:center;gap:10px;flex-shrink:0;margin-left:auto}
.language{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;width:auto;height:38px;padding:0 12px;border-radius:var(--r-sm);font-size:14px;font-weight:500;color:var(--text-muted);background:var(--transparent);transition:background-color .2s ease}
.lang span{white-space:nowrap}
.lang:hover{background:var(--bg-panel-2)}
.lang svg{width:16px;height:16px}
.language__panel{position:absolute;right:0;top:calc(100% + 8px);z-index:80;min-width:180px;padding:8px;background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--shadow-float)}
.language__panel a{display:flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:var(--r-sm)}
.language__panel a:hover,.language__panel a[aria-current="true"]{background:var(--lilac-wash);color:var(--accent)}
.btn-login{display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 20px;border-radius:var(--r-sm);background:var(--accent);color:var(--on-dark);font-size:14px;font-weight:700;letter-spacing:.02em;white-space:nowrap;box-shadow:inset 0 1px 0 var(--on-dark-20);transition:background-color .2s ease}
.btn-login:hover{background:var(--accent-dark)}
.menu-toggle{display:none;align-items:center;justify-content:center;min-width:44px;min-height:44px;background:var(--transparent);color:var(--accent);border-radius:var(--r-sm)}
.menu-toggle svg{width:22px;height:22px}
.nav-drawer{position:fixed;top:var(--header-height);right:0;width:min(420px,100%);height:calc(100dvh - var(--header-height));max-height:calc(100dvh - var(--header-height));overflow-y:auto;overscroll-behavior:contain;z-index:45;background:var(--bg-panel);padding:16px 24px 32px;box-shadow:var(--shadow-float)}
.nav-drawer a{display:flex;align-items:center;width:100%;min-height:44px;padding:12px;border-bottom:1px solid var(--border-soft)}
.nav-drawer a[aria-current]{color:var(--accent);font-weight:700}
.nav-drawer__languages{margin-top:24px;border-top:1px solid var(--border)}
.nav-veil{position:fixed;inset:var(--header-height) 0 0;z-index:40;background:var(--veil);border:0}
.site-footer{background:var(--bg);border-top:1px solid var(--border);padding-top:48px;padding-bottom:24px}
.footer-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:40px}
.footer-grid>*{min-width:0}
.footer-brand p{max-width:28em;margin-top:16px;color:var(--text-muted);font-size:14px}
.footer-title{font-size:14px;font-weight:800;margin-bottom:12px}
.footer-links{display:flex;flex-wrap:wrap;gap:4px 16px}
.footer-links a{display:inline-flex;align-items:center;min-height:32px;font-size:14px;color:var(--text-muted)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{margin-top:32px;padding-top:20px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;color:var(--text-muted);font-size:13px}
.footer-languages{display:flex;flex-wrap:wrap;gap:4px 16px}
.footer-languages a{display:inline-flex;align-items:center;min-height:28px}
.footer-languages a[aria-current]{color:var(--accent);font-weight:700}
.reveal{transition:opacity .35s var(--ease),transform .35s var(--ease)}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
#server-status{position:relative;display:grid;min-width:0;max-width:100%;min-height:48px;overflow:hidden;margin-block:24px}
#server-status+*{margin-top:24px}
@media(max-width:1240px){
  .topbar__inner{gap:18px;padding-inline:24px}
  .dotnav li+li::before{margin-inline:7px}
  .dotnav a{font-size:13px}
}
@media(max-width:1080px){
  .dotnav{display:none}
  .menu-toggle{display:inline-flex}
  .topbar__end{margin-left:auto}
  .grid--five{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:768px){
  :root{--header-height:56px;--space-section:48px;--gutter:16px}
  .topbar__inner{height:var(--header-height);padding-inline:16px;gap:12px}
  .topbar__end{gap:4px;margin-left:auto}
  .lang{padding-inline:8px}
  h1{font-size:38px;line-height:1.14}
  .grid--three,.footer-grid{grid-template-columns:1fr}
  .footer-grid{gap:28px}
}
@media(max-width:640px){
  .no-break{white-space:normal}
  .tilt{transform:none}
  .wrap{padding-inline:var(--gutter)}
  .cta-row{flex-direction:column;width:100%}
  .btn{width:100%}
  .lang__txt{display:none}
  .brand{gap:7px}
  .brand__word{font-size:19px}
  .brand__logo{width:28px;height:28px}
  .btn-login{padding-inline:14px}
  .grid--five{grid-template-columns:repeat(2,minmax(0,1fr))}
  .panel,.card{padding:20px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.reveal.pending,.reveal.shown{opacity:1;transform:none;transition:none}
  .btn,.btn-login,.lang,.dotnav a{transition:none}
  .btn:hover{transform:none}
}