:root {
  --bg:#FBF8FA;
  --bg-panel:#FFFFFF;
  --bg-panel-2:#F3EEF4;
  --border:#E4DCE6;
  --border-soft:#EFE8F1;
  --accent:#3D1A57;
  --accent-dark:#2A0F3E;
  --accent-bright:#7A3FA8;
  --text:#1C1220;
  --text-muted:#66596B;
  --success:#1E9E6A;
  --success-soft:rgba(30,158,106,.18);
  --warn:#D98A12;
  --error:#D2364B;
  --lavender:#EEE1F7;
  --lavender-edge:#DCC8EE;
  --pane-tint:#FDFBFE;
  --skeleton:#ECE5EE;
  --blob-rose:#F6D9E6;
  --blob-cream:#FBF1C9;
  --horizon:rgba(255,255,255,.66);
  --spark-teal:#23A6A0;
  --spark-amber:#E3A21A;
  --spark-coral:#EA6A5B;
  --light-red:#FF5F57;
  --light-yellow:#FEBC2E;
  --light-green:#2BC840;
  --flag-red:#D7262E;
  --flag-blue:#1E3C8C;
  --flag-navy:#13286B;
  --flag-white:#FFFFFF;
  --flag-edge:rgba(28,18,32,.14);
  --on-accent:#FFFFFF;
  --on-accent-72:rgba(255,255,255,.72);
  --on-accent-50:rgba(255,255,255,.5);
  --on-accent-18:rgba(255,255,255,.18);
  --on-accent-10:rgba(255,255,255,.10);
  --search-slot:rgba(164,112,210,.38);
  --tint-8:rgba(61,26,87,.08);
  --tint-12:rgba(61,26,87,.12);
  --tint-14:rgba(61,26,87,.14);
  --tint-30:rgba(42,15,62,.30);
  --veil:rgba(42,15,62,.30);
  --clear:transparent;
  --radius-xs:4px;
  --radius-slot:9px;
  --radius-row:10px;
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:22px;
  --radius-xl:28px;
  --radius-phone:26px;
  --radius-round:50%;
  --radius-pill:999px;
  --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","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --shadow-chip:0 4px 14px -8px var(--tint-14);
  --shadow-card:inset 0 1px 0 var(--bg-panel),0 20px 48px -20px var(--tint-12);
  --shadow-float:inset 0 1px 0 var(--bg-panel),0 28px 60px -20px var(--tint-30),0 10px 26px -12px var(--tint-14);
  --shadow-window:inset 0 1px 0 var(--on-accent-18),0 44px 90px -30px var(--tint-30),0 20px 50px -20px var(--tint-14);
  --gutter:40px;
  --content-width:1280px;
  --header-height:68px;
  --toc-height:64px;
  --anchor-offset:calc(var(--header-height) + var(--toc-height) + 16px);
  --ease: .2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-height) + 16px);scroll-behavior:smooth}
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}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed}
img{display:block;max-width:100%;height:auto}
svg{display:block;flex-shrink:0}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3{font-family:var(--font-display);text-wrap:balance}
h1{font-size:clamp(52px,4.6vw,66px);font-weight:900;line-height:1.1;letter-spacing:-.02em}
h2{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1.25;letter-spacing:-.02em}
h3{font-size:22px;font-weight:750;line-height:1.35}
ul{margin:0;padding:0;list-style:none}
ol{padding-inline-start:24px}
button,a,summary,input,select,textarea{-webkit-tap-highlight-color:var(--tint-12)}
:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{outline:2px solid var(--accent-bright);outline-offset:4px}
[hidden]{display:none!important}
:where(.shell,.wrap){width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-top:72px;padding-bottom:72px}
.section-heading{margin-bottom:32px}
.section-heading p{margin-top:12px;color:var(--text-muted)}
.center{text-align:center}
.muted{color:var(--text-muted)}
.mono{font-family:var(--font-mono);font-size:.92em;letter-spacing:-.01em}
.no-break{white-space:nowrap}
:where(.grid,.card-grid){display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
:where(main,section,article,aside,nav,.grid,.card-grid)>*{min-width:0}
.card,.panel{padding:28px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-panel);box-shadow:var(--shadow-card)}
.panel--inset{background:var(--bg-panel-2)}
.prose{max-width:840px;margin-inline:auto;line-height:1.85}
.prose :where(p,ul,ol,pre,blockquote,table){margin-block:20px}
.prose ul{list-style:disc;padding-inline-start:24px}
.prose :where(h2,h3){margin-top:40px;margin-bottom:16px}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
code{font-family:var(--font-mono);overflow-wrap:anywhere;background:var(--bg-panel-2);border-radius:var(--radius-xs);padding:2px 5px}
pre{max-width:100%;overflow-x:auto;background:var(--bg-panel-2);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px}
pre code{padding:0;white-space:pre;overflow-wrap:normal}
.decor-section{position:relative;overflow-x:clip}
#server-status{position:relative;display:block;width:100%;min-width:0;min-height:160px;overflow:hidden;margin-block:24px}
#server-status>*{min-width:0;max-width:100%}
#server-status+*{margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;min-width:172px;padding:12px 30px;border:0;border-radius:var(--radius-md);font-size:16px;font-weight:700;letter-spacing:.02em;transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease);text-align:center}
.btn--solid,.btn-primary{background:linear-gradient(180deg,var(--accent),var(--accent-dark));color:var(--on-accent);box-shadow:inset 0 1px 0 var(--on-accent-18),0 14px 28px -14px var(--tint-30)}
.btn--solid:hover,.btn-primary:hover{transform:translateY(-1px);box-shadow:inset 0 1px 0 var(--on-accent-18),0 18px 32px -14px var(--tint-30)}
.btn--outline,.btn-secondary{background:var(--bg-panel);color:var(--accent);border:1.5px solid var(--accent)}
.btn--outline:hover,.btn-secondary:hover{background:var(--lavender)}
.btn--quiet{background:var(--bg-panel-2);color:var(--accent)}
.btn:disabled,.btn[aria-disabled="true"]{background:var(--bg-panel-2);color:var(--text-muted);box-shadow:none;transform:none}
.cta-pair{display:flex;gap:14px;margin-bottom:16px}
.topbar{position:relative;z-index:60}
.topbar__inner{display:flex;align-items:center;gap:28px;height:var(--header-height);flex-wrap:nowrap}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:-.02em;color:var(--accent);flex-shrink:0;min-height:40px}
.brand img{width:32px;height:32px;filter:drop-shadow(0 4px 8px var(--tint-14))}
.mainnav{flex:1;display:flex;justify-content:center;min-width:0}
.mainnav ul{display:flex;align-items:center;list-style:none;margin:0;padding:0;gap:2px}
.mainnav__link{display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:8px 11px;border-radius:var(--radius-pill);font-size:14.5px;font-weight:500;color:var(--text);white-space:nowrap;transition:background-color var(--ease),color var(--ease)}
.mainnav__link svg{color:var(--text-muted);width:16px;height:16px}
.mainnav__link:hover{background:var(--bg-panel-2)}
.mainnav__link[aria-current="page"]{background:var(--lavender);color:var(--accent);font-weight:650}
.mainnav__link[aria-current="page"] svg{color:var(--accent)}
.topbar__end{display:flex;align-items:center;gap:10px;flex-shrink:0}
.lang-menu{position:relative}
.langpick{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:38px;min-width:44px;width:auto;padding:0 12px;border:0;border-radius:var(--radius-pill);background:var(--clear);font:inherit;font-size:14px;color:var(--text-muted)}
.langpick span{white-space:nowrap}
.langpick:hover{background:var(--bg-panel-2)}
.lang-panel{position:absolute;right:0;top:calc(100% + 10px);z-index:80;width:192px;padding:8px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-panel);box-shadow:var(--shadow-float)}
.lang-panel a{display:flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:var(--radius-sm)}
.lang-panel a:hover,.lang-panel a[aria-current]{background:var(--lavender);color:var(--accent)}
.btn-login{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:38px;padding:0 18px 0 14px;border-radius:var(--radius-pill);background:var(--accent);color:var(--on-accent);font-size:14.5px;font-weight:650;white-space:nowrap;box-shadow:inset 0 1px 0 var(--on-accent-18),0 8px 18px -10px var(--tint-30)}
.btn-login:hover{background:var(--accent-dark)}
.nav-toggle{display:none;align-items:center;justify-content:center;flex-direction:column;gap:4px;min-width:44px;min-height:44px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-panel);color:var(--accent)}
.nav-toggle__line{display:block;width:20px;height:2px;background:currentColor}
.nav-drawer{position:fixed;top:var(--header-height);left:0;right:0;height:calc(100dvh - var(--header-height));max-height:calc(100dvh - var(--header-height));overflow-y:auto;overscroll-behavior:contain;z-index:55;background:var(--bg-panel);padding:16px var(--gutter) 32px}
.nav-drawer a{display:flex;align-items:center;gap:12px;width:100%;min-height:48px;padding:12px 16px;border-radius:var(--radius-sm)}
.nav-drawer a:hover,.nav-drawer a[aria-current]{background:var(--lavender);color:var(--accent)}
.nav-drawer__languages{border-top:1px solid var(--border);margin-top:16px;padding-top:16px}
.nav-veil{position:fixed;inset:var(--header-height) 0 0;z-index:50;border:0;background:var(--veil)}
html.nav-open{overflow:hidden}
.site-footer{background:var(--bg-panel-2);border-top:1px solid var(--border);padding-top:56px;padding-bottom:24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{max-width:300px;margin-top:16px;color:var(--text-muted)}
.footer-title{font-size:15px;font-weight:750;margin-bottom:14px;color:var(--accent)}
.footer-links{display:grid;gap:6px}
.footer-links a{display:inline-flex;align-items:center;min-height:30px;color:var(--text-muted)}
.footer-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-top:36px;padding-top:24px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}
.footer-legal{display:flex;flex-wrap:wrap;gap:20px}
.footer-legal a{display:inline-flex;align-items:center;min-height:28px}
.reveal{transition:opacity .35s ease,transform .35s ease}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.fr{fill:var(--flag-red)}
.fw{fill:var(--flag-white)}
.fb{fill:var(--flag-blue)}
.fn{fill:var(--flag-navy)}
.fws{fill:none;stroke:var(--flag-white);stroke-width:4}
.frs{fill:none;stroke:var(--flag-red);stroke-width:1.3}
.fe{fill:none;stroke:var(--flag-edge);stroke-width:1}
@media(min-width:1181px){.nav-drawer,.nav-veil{display:none!important}}
@media(max-width:1280px){.topbar__inner{gap:16px}.mainnav__link{padding:7px 8px;font-size:13.5px}}
@media(max-width:1180px){.mainnav{display:none}.topbar__end{margin-left:auto}.nav-toggle{display:flex}}
@media(max-width:768px){
  h1{font-size:38px}
  .grid,.card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding-top:48px;padding-bottom:48px}
}
@media(max-width:640px){
  :root{--gutter:20px}
  .no-break{white-space:normal}
  .tilt,[data-tilt]{transform:none}
  .decor-section,.hero__atmos{max-width:100%}
  .topbar__inner{gap:8px}
  .topbar__end{margin-left:auto;gap:4px}
  .brand{font-size:18px;gap:7px}
  .brand img{width:28px;height:28px}
  .langpick{padding:0 8px}
  .langpick span{display:none}
  .btn-login{padding:0 12px;font-size:13px}
  .footer-grid{grid-template-columns:1fr}
  .cta-pair{flex-wrap:wrap;justify-content:center}
  .btn{min-width:0;padding-inline:22px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal,.reveal.pending{opacity:1;transform:none}
}