:root{
  --bg:#F5F4F0;--bg-deep:#EEECE5;--panel:#FFFFFF;--panel-2:#ECEAE3;--porcelain:#FBFAF6;--border:#DEDBD2;
  --accent:#F4B63F;--accent-hi:#F8C764;--accent-dark:#9A6208;--text:#10263A;--navy-2:#1B3B57;--text-muted:#5C6873;
  --success:#2E8B57;--success-soft:#E2F1E7;--warn:#D9822B;--error:#C8413A;--coral:#E59A7E;--sand:#EAD9C3;--sand-card:#F7E6C8;
  --ic-blue:#2F6BD0;--ic-blue-bg:#E4EDFA;--ic-green:#2E8B57;--ic-green-bg:#E2F1E7;--ic-orange:#D9822B;--ic-orange-bg:#FBEBD9;--ic-purple:#7A4CC0;--ic-purple-bg:#EFE7F8;--ic-cyan:#177F91;--ic-cyan-bg:#E0F1F3;--ic-coral:#AE5237;--ic-coral-bg:#F8E6DE;
  --flag-red:#D52B1E;--flag-white:#FFFFFF;--flag-blue:#21468B;--flag-navy:#2B3A6B;
  --accent-a05:rgba(244,182,63,.05);--accent-a10:rgba(244,182,63,.10);--accent-a12:rgba(244,182,63,.12);--accent-a30:rgba(244,182,63,.30);--accent-a45:rgba(244,182,63,.45);
  --ink-a06:rgba(16,38,58,.06);--ink-a10:rgba(16,38,58,.10);--ink-a35:rgba(6,16,28,.35);--ink-a50:rgba(6,16,28,.50);
  --white-a06:rgba(255,255,255,.06);--white-a12:rgba(255,255,255,.12);--white-a80:rgba(255,255,255,.80);--clear:transparent;
  --font-display:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans","Yu Gothic","Apple SD Gothic Neo","Malgun Gothic","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans","Yu Gothic","Apple SD Gothic Neo","Malgun Gothic","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --fs-xs:12px;--fs-sm:14px;--fs-body:17px;--fs-lede:18px;--fs-h1:64px;--fs-h2:40px;--fs-h3:24px;--fs-brand:21px;
  --r-xs:6px;--r-sm:10px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-2xl:24px;--r-plate:40px;--r-pill:999px;--r-circle:50%;--r-flag:4px;
  --shadow-card:0 1px 2px var(--ink-a06),0 24px 56px -12px var(--accent-a10);
  --shadow-lift:0 1px 2px var(--ink-a06),0 16px 36px -14px var(--accent-a45);
  --shadow-win:0 0 0 1px var(--ink-a10),0 30px 60px -20px var(--ink-a50),0 44px 96px -12px var(--accent-a12);
  --hi-edge:inset 0 0 0 1px var(--white-a80);
  --gutter:64px;--content-width:1440px;--header-height:72px;--anchor-offset:96px;--toc-offset:156px;
  --ease:ease;--time-fast:.2s;--time-reveal:.35s;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:var(--anchor-offset);scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:var(--fs-body);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
button,a,summary{-webkit-tap-highlight-color:var(--accent-a12)}
button:disabled,[aria-disabled="true"]{cursor:not-allowed}
img{max-width:100%;height:auto;display:block}
svg{flex-shrink:0}
ul{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--text);text-wrap:balance}
h1{font-size:clamp(52px,4.45vw,72px);font-weight:800;line-height:1.1;letter-spacing:-.02em;margin:0 0 24px}
h2{font-size:var(--fs-h2);font-weight:800;line-height:1.2;letter-spacing:-.02em;margin:0 0 24px}
h3{font-size:var(--fs-h3);line-height:1.35;margin:0 0 16px}
:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:2px solid var(--accent-dark);outline-offset:4px}
[hidden]{display:none!important}
.no-break{white-space:nowrap}
.wrap{width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-top:80px;padding-bottom:80px}
.section-head{max-width:780px;margin-bottom:40px}
.section-head p{color:var(--text-muted)}
.grid{display:grid;gap:24px}
.grid--three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--five{grid-template-columns:repeat(5,minmax(0,1fr))}
:where(.grid,.hero__grid,.win__body,.feature-layout,.footer-grid)>*{min-width:0}
.panel,.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-2xl);box-shadow:var(--hi-edge),var(--shadow-card);padding:32px;min-width:0}
.panel--inset{background:var(--panel-2);box-shadow:inset 0 1px 3px var(--ink-a06)}
.muted{color:var(--text-muted)}
.num{font-family:var(--font-mono);font-weight:600;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.prose{max-width:860px;min-width:0;overflow-wrap:break-word}
.prose p,.prose ul,.prose ol,.prose pre,.prose blockquote,.prose .table-scroll{margin-block:0 24px}
.prose h2{margin-top:56px}
.prose h3{margin-top:32px}
.prose ul{padding-left:24px;list-style:disc}
.prose ol{padding-left:28px}
.prose li+li{margin-top:8px}
.prose a:not(.btn){text-decoration:underline;text-underline-offset:4px;color:var(--accent-dark)}
code{font-family:var(--font-mono);font-size:.9em;overflow-wrap:anywhere}
pre{max-width:100%;overflow-x:auto;padding:24px;background:var(--text);color:var(--porcelain);border-radius:var(--r-lg)}
pre code{overflow-wrap:normal;white-space:pre}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:12px 30px;border:0;border-radius:var(--r-pill);font-size:var(--fs-body);font-weight:700;letter-spacing:.01em;line-height:1.4;flex-shrink:0;white-space:nowrap;transition:transform var(--time-fast) var(--ease),box-shadow var(--time-fast) var(--ease),background-color var(--time-fast) var(--ease),color var(--time-fast) var(--ease)}
.btn svg{width:18px;height:18px;display:block}
.btn--primary,.btn-primary{background:linear-gradient(180deg,var(--accent-hi),var(--accent));color:var(--text);box-shadow:inset 0 1px 0 var(--white-a80),0 14px 30px -10px var(--accent-a45)}
.btn--primary:hover,.btn-primary:hover{transform:translateY(-2px)}
.btn--ghost,.btn-secondary{border:1.5px solid var(--text);color:var(--text);background:var(--clear)}
.btn--ghost:hover,.btn-secondary:hover{background:var(--text);color:var(--panel)}
.btn--small{min-height:44px;padding:10px 20px;font-size:var(--fs-sm)}
.btn:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{background:var(--panel-2);color:var(--text-muted);box-shadow:none;transform:none}
.cta-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}
.top{position:relative;overflow-x:clip;max-width:100%;background:linear-gradient(180deg,var(--accent-a05),var(--clear) 46%),linear-gradient(180deg,var(--bg),var(--bg) 52%,var(--bg-deep))}
#site-header{position:relative;z-index:100}
.topbar{position:relative;z-index:50}
.topbar__in{height:var(--header-height);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:nowrap;position:relative;z-index:53}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;min-height:32px}
.brand img{width:32px;height:32px;flex-shrink:0}
.brand__word{font-family:var(--font-display);font-weight:800;font-size:var(--fs-brand);letter-spacing:-.02em;color:var(--text)}
.desktop-nav{flex:1;min-width:0;display:flex;justify-content:center}
.navpill{display:flex;align-items:center;list-style:none;margin:0;padding:4px;gap:2px;background:var(--panel);border-radius:var(--r-pill);box-shadow:0 0 0 1px var(--border),0 8px 24px -16px var(--accent-a45);width:max-content}
.navpill a{display:flex;align-items:center;justify-content:center;min-height:34px;padding:7px 13px;border-radius:var(--r-pill);font-size:var(--fs-sm);font-weight:600;line-height:20px;color:var(--text-muted);white-space:nowrap;transition:color var(--time-fast),background-color var(--time-fast)}
.navpill a:hover{color:var(--text);background:var(--panel-2)}
.navpill a[aria-current="page"]{background:var(--text);color:var(--panel)}
.topbar__end{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:auto}
.language{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;min-height:40px;width:auto;padding:8px 10px;border:0;background:var(--clear);font-size:var(--fs-sm);font-weight:600;color:var(--text-muted);border-radius:var(--r-pill)}
.lang span{white-space:nowrap}
.lang:hover{color:var(--text)}
.lang svg{width:16px;height:16px;display:block}
.language-panel{position:absolute;right:0;top:calc(100% + 8px);z-index:60;min-width:176px;padding:8px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-card)}
.language-panel a{display:flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:var(--r-sm);font-size:var(--fs-sm);white-space:nowrap}
.language-panel a:hover,.language-panel a[aria-current="true"]{background:var(--panel-2);color:var(--text)}
.login{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:8px 22px;border-radius:var(--r-pill);border:1.5px solid var(--text);font-size:var(--fs-sm);font-weight:700;line-height:20px;white-space:nowrap;background:var(--panel);transition:background-color var(--time-fast),color var(--time-fast)}
.login:hover{background:var(--text);color:var(--panel)}
.menu-toggle{display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;min-width:44px;min-height:44px;padding:10px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--panel)}
.menu-toggle__line{display:block;width:20px;height:2px;background:currentColor}
.menu-drawer{display:none}
.menu-veil{display:none}
html.nav-open{overflow:hidden}
.site-footer{padding-top:56px;padding-bottom:32px;background:var(--panel-2);border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:48px}
.footer-brand p{margin-top:20px;max-width:30em;font-size:var(--fs-sm);color:var(--text-muted)}
.footer-heading{font-size:var(--fs-sm);font-weight:800;margin:0 0 16px}
.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 20px}
.footer-links a,.footer-languages a,.footer-bottom a{display:inline-flex;align-items:center;min-height:28px;font-size:var(--fs-sm);color:var(--text-muted)}
.footer-links a:hover,.footer-languages a:hover,.footer-bottom a:hover{color:var(--accent-dark);text-decoration:underline;text-underline-offset:4px}
.footer-languages{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.footer-languages [aria-current="true"]{color:var(--text);font-weight:700}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;margin-top:24px;padding-top:24px;border-top:1px solid var(--border);font-size:var(--fs-sm);color:var(--text-muted)}
.footer-legal{display:flex;gap:24px;flex-wrap:wrap}
.reveal{transition:opacity var(--time-reveal) var(--ease),transform var(--time-reveal) var(--ease)}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
#server-status{display:block;position:static;min-width:0;max-width:100%;overflow:hidden;margin-top:24px;margin-bottom:32px;isolation:isolate}
#server-status+*{margin-top:32px}
.decor-region{position:relative;overflow-x:clip;max-width:100%}
.symbol-bank{position:absolute;width:0;height:0;overflow:hidden}
@media(max-width:1360px){.topbar__in{gap:16px}.navpill{gap:1px}.navpill a{padding-inline:5px;font-size:13px}}
@media(max-width:1240px){.navpill a{padding-inline:8px}.topbar__end{gap:6px}}
@media(max-width:1180px){
  .desktop-nav{display:none}
  .menu-toggle{display:inline-flex}
  .topbar__end{margin-left:auto}
  .menu-drawer{position:fixed;top:var(--header-height);left:0;right:0;z-index:52;height:calc(100dvh - var(--header-height));max-height:calc(100dvh - var(--header-height));overflow-y:auto;overscroll-behavior:contain;background:var(--panel);padding:16px var(--gutter) 32px;border-top:1px solid var(--border)}
  .menu-drawer:not([hidden]){display:block}
  .menu-drawer a{display:flex;width:100%;align-items:center;min-height:48px;padding:12px 16px;border-radius:var(--r-md);font-size:var(--fs-body)}
  .menu-drawer a:hover,.menu-drawer a[aria-current="page"]{background:var(--panel-2)}
  .menu-drawer a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--accent)}
  .drawer-languages{margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}
  .menu-veil:not([hidden]){display:block;position:fixed;inset:var(--header-height) 0 0;z-index:51;background:var(--ink-a35);border:0}
}
@media(max-width:860px){:root{--gutter:32px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.grid--five{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:768px){h1{font-size:36px}.section{padding-top:56px;padding-bottom:56px}.grid--three{grid-template-columns:minmax(0,1fr)}}
@media(max-width:640px){
  :root{--gutter:20px;--fs-h2:28px;--fs-h3:21px}
  .no-break{white-space:normal}
  .wrap{padding-inline:var(--gutter)}
  .panel,.card{padding:24px}
  .tilt,.tilt-decor,[data-tilt]{transform:none}
  .decor-region>*[aria-hidden="true"]{max-width:100%}
  .topbar__in{gap:8px}
  .topbar__end{gap:4px;margin-left:auto}
  .lang{padding-inline:8px}
  .lang span{display:none}
  .login{padding-inline:14px}
  .brand{gap:7px}
  .brand__word{font-size:18px}
  .brand img{width:28px;height:28px}
  .btn{min-height:52px;padding-inline:24px;font-size:16px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-brand{grid-column:auto}
  .grid--five{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:360px){:root{--gutter:16px}.brand__word{font-size:16px}.brand img{width:24px;height:24px}.login{padding-inline:10px}.topbar__end{gap:2px}}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal,.reveal.pending{opacity:1;transform:none}
}