:root {
  color-scheme: light;
  --bg:#F5EFE4;
  --bg-top:#FAF6EE;
  --bg-bottom:#EFE6D6;
  --panel:#FFFCF6;
  --panel-2:#EDE4D3;
  --border:#DDD1BC;
  --accent:#2340D9;
  --accent-dark:#1A2FA8;
  --accent-2:#6F86F2;
  --text:#2A2118;
  --muted:#6E6152;
  --success:#2E7D4F;
  --warn:#B7791F;
  --error:#B3261E;
  --on-accent:#FFFFFF;
  --clear:transparent;
  --accent-rgb:35 64 217;
  --accent-2-rgb:111 134 242;
  --text-rgb:42 33 24;
  --panel-rgb:255 252 246;
  --panel-2-rgb:237 228 211;
  --success-rgb:46 125 79;
  --white-rgb:255 255 255;
  --flag-red:#C8102E;
  --flag-blue:#1F3A93;
  --flag-white:#FFFFFF;
  --flag-green:#009246;
  --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-xs:4px;
  --r-sm:6px;
  --r-tiny:3px;
  --r-pill:999px;
  --r-circle:50%;
  --edge-hi:inset 0 1px 0 rgb(var(--white-rgb) / .9);
  --lift-1:0 1px 2px rgb(var(--text-rgb) / .05),0 10px 24px -12px rgb(var(--accent-rgb) / .12);
  --lift-2:0 2px 6px rgb(var(--text-rgb) / .05),0 28px 56px -22px rgb(var(--accent-rgb) / .12);
  --lift-3:0 14px 30px -14px rgb(var(--accent-rgb) / .12),0 52px 100px -30px rgb(var(--accent-rgb) / .12);
  --grid-line:rgb(var(--text-rgb) / .04);
  --gutter:32px;
  --wrap-width:1296px;
  --head-height:68px;
  --anchor-gap:84px;
  --toc-offset:16px;
  --toc-clearance:96px;
  --text-xs:12px;
  --text-sm:14px;
  --text-base:16px;
  --text-lg:20px;
  --h1-size:64px;
  --h2-size:36px;
  --h3-size:23px;
  --weight-normal:400;
  --weight-medium:500;
  --weight-bold:700;
  --weight-heavy:800;
  --ease:ease;
  --fast:.2s;
  --reveal-time:.35s;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:var(--anchor-gap);scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);font-size:var(--text-base);line-height:1.75;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{vertical-align:middle}
img{max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button,select,summary{cursor:pointer}
button{border:1px solid var(--border);background:var(--panel)}
a{color:var(--accent);text-underline-offset:3px}
button,a,input,select,textarea,summary{touch-action:manipulation}
:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:3px}
button:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none}
h1,h2,h3{font-family:var(--font-display);font-weight:var(--weight-heavy);line-height:1.2;text-wrap:balance;overflow-wrap:break-word}
h1{font-size:var(--h1-size);letter-spacing:-.02em;line-height:1.1}
h2{font-size:var(--h2-size);letter-spacing:-.015em}
h3{font-size:var(--h3-size)}
p{margin:0 0 1.25em}
h1,h2,h3{margin:0 0 .65em}
ul,ol{padding-inline-start:1.5em}
figure{margin:0}
hr{border:0;border-top:1px solid var(--border);margin-block:32px}
code,kbd,pre{font-family:var(--font-mono)}
code{overflow-wrap:anywhere;font-size:.9em}
pre{max-width:100%;overflow-x:auto;padding:20px;background:var(--panel-2);border:1px solid var(--border);border-radius:var(--r-sm)}
pre code{overflow-wrap:normal;white-space:pre}
[hidden]{display:none!important}
.wrap{width:100%;max-width:var(--wrap-width);padding-inline:var(--gutter);margin-inline:auto}
.section{padding-top:72px;padding-bottom:72px}
.reading-wrap{max-width:840px}
.prose{overflow-wrap:break-word}
.prose h2{margin-top:2em}
.prose h3{margin-top:1.6em}
.prose li+li{margin-top:8px}
.prose a{overflow-wrap:anywhere}
.grid{display:grid;gap:24px}
.grid>*,
.hero-grid>*,
.footer-grid>*,
.console-body>*{min-width:0}
.grid-two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-three{grid-template-columns:repeat(3,minmax(0,1fr))}
.stack>*+*{margin-top:24px}
.mono{font-family:var(--font-mono)}
.muted{color:var(--muted)}
.accent{color:var(--accent)}
.no-break{white-space:nowrap}
.vh{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.panel,.card{padding:28px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-sm);box-shadow:var(--edge-hi),var(--lift-1)}
.panel-raised{box-shadow:var(--edge-hi),var(--lift-2)}
.decor-section{position:relative;overflow-x:clip}
.decor-layer{position:absolute;inset:0;pointer-events:none;max-width:100%}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 28px;border:1px solid var(--clear);border-radius:var(--r-xs);font:600 var(--text-base)/1.2 var(--font-body);text-decoration:none;white-space:nowrap;flex-shrink:0;transition:transform var(--fast) var(--ease),box-shadow var(--fast) var(--ease),background-color var(--fast) var(--ease)}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{color:var(--on-accent);background:linear-gradient(135deg,var(--accent) 0%,var(--accent) 50%,var(--accent-2) 145%);box-shadow:inset 0 1px 0 rgb(var(--white-rgb) / .24),0 14px 28px -14px rgb(var(--accent-rgb) / .7)}
.btn-primary:hover,.btn-primary.is-hover{transform:translateY(-1px);box-shadow:inset 0 1px 0 rgb(var(--white-rgb) / .24),0 18px 32px -14px rgb(var(--accent-rgb) / .75)}
.btn:active,.btn.is-active{transform:translateY(1px)}
.btn-ghost,.btn-secondary{color:var(--text);background:var(--panel);border:1px solid var(--border);box-shadow:var(--edge-hi),0 8px 18px -12px rgb(var(--accent-rgb) / .2)}
.btn-ghost:hover,.btn-secondary:hover{border-color:rgb(var(--text-rgb) / .35)}
.btn-small{min-height:38px;padding-inline:16px;font-size:var(--text-sm)}
.btn.is-focus{outline:2px solid var(--accent);outline-offset:3px}
.cta-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:40px}
.cta-frame{--mark:var(--accent);display:inline-flex;padding:6px;background:linear-gradient(var(--mark),var(--mark)) left top/10px 1.5px no-repeat,linear-gradient(var(--mark),var(--mark)) left top/1.5px 10px no-repeat,linear-gradient(var(--mark),var(--mark)) right top/10px 1.5px no-repeat,linear-gradient(var(--mark),var(--mark)) right top/1.5px 10px no-repeat,linear-gradient(var(--mark),var(--mark)) left bottom/10px 1.5px no-repeat,linear-gradient(var(--mark),var(--mark)) left bottom/1.5px 10px no-repeat,linear-gradient(var(--mark),var(--mark)) right bottom/10px 1.5px no-repeat,linear-gradient(var(--mark),var(--mark)) right bottom/1.5px 10px no-repeat}
.cta-frame.is-ghost{--mark:rgb(var(--text-rgb) / .45)}
.dismiss-input:checked+.announce{display:none}
.announce{background:var(--accent);color:var(--on-accent);font:500 var(--text-sm)/1.4 var(--font-body)}
.announce-inner{position:relative;display:flex;align-items:center;justify-content:center;min-height:40px;padding-block:8px;padding-inline:96px;text-align:center}
.announce-inner p{margin:0}
.announce-sep{opacity:.7;margin:0 8px}
.announce a{color:inherit;text-decoration:underline;margin-left:12px}
.dismiss{position:absolute;right:var(--gutter);top:50%;transform:translateY(-50%);display:inline-flex;align-items:center;gap:6px;min-height:24px;font-size:13px;cursor:pointer;opacity:.88}
.dismiss:hover{opacity:1}
.dismiss-input:focus-visible+.announce .dismiss{outline:2px solid var(--on-accent);outline-offset:3px}
.site-head{position:relative;z-index:80;border-bottom:1px solid var(--border);background:rgb(var(--panel-rgb) / .62);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.head-inner{display:flex;align-items:center;height:var(--head-height);flex-wrap:nowrap;gap:0}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font:800 20px/1 var(--font-display);letter-spacing:-.02em;flex-shrink:0}
.brand-mark{width:30px;height:30px;display:block;flex:none}
.nav{margin-left:56px;flex:1;min-width:0}
.nav ul{display:flex;align-items:center;gap:34px;list-style:none;margin:0;padding:0}
.nav a{display:inline-flex;align-items:center;min-height:32px;font:500 15px/1.3 var(--font-body);color:var(--muted);text-decoration:none;padding:8px 0;white-space:nowrap}
.nav a:hover{color:var(--text)}
.nav a[aria-current="page"]{color:var(--text);font-weight:var(--weight-bold)}
.head-tools{margin-left:auto;display:flex;align-items:center;gap:24px;flex-shrink:0}
.lang-switch{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;min-height:38px;width:auto;border:0;background:none;padding:6px 0;font:500 var(--text-sm)/1 var(--font-body);color:var(--muted)}
.lang span{white-space:nowrap}
.lang:hover{color:var(--text)}
.lang-panel{position:absolute;right:0;top:calc(100% + 12px);z-index:100;width:180px;padding:6px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-sm);box-shadow:var(--lift-2);display:none}
.lang-panel.is-open{display:block}
.lang-panel a{display:flex;align-items:center;min-height:44px;padding:8px 12px;color:var(--text);text-decoration:none;border-radius:var(--r-xs)}
.lang-panel a:hover,.lang-panel a[aria-current="true"]{background:var(--panel-2);color:var(--accent)}
.login{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 20px;border-radius:var(--r-xs);background:var(--accent);color:var(--on-accent);font:600 var(--text-sm)/1 var(--font-body);text-decoration:none;white-space:nowrap;box-shadow:inset 0 1px 0 rgb(var(--white-rgb) / .22),0 8px 18px -10px rgb(var(--accent-rgb) / .6);transition:background-color var(--fast) var(--ease)}
.login:hover{background:var(--accent-dark)}
.menu-toggle{display:none;align-items:center;justify-content:center;flex-direction:column;gap:4px;min-width:44px;min-height:44px;padding:10px;border:1px solid var(--border);border-radius:var(--r-xs);background:var(--panel)}
.menu-line{display:block;width:20px;height:2px;background:currentColor}
.mobile-drawer{display:none;position:fixed;left:0;right:0;top:var(--drawer-top,var(--head-height));height:calc(100dvh - var(--drawer-top,var(--head-height)));max-height:calc(100dvh - var(--drawer-top,var(--head-height)));overflow-y:auto;overscroll-behavior:contain;background:var(--panel);z-index:70;padding:16px var(--gutter) 32px}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:flex;align-items:center;width:100%;min-height:48px;padding:12px 16px;text-decoration:none;color:var(--text);border-bottom:1px solid var(--border)}
.mobile-drawer a[aria-current]{color:var(--accent);font-weight:var(--weight-bold)}
.drawer-label{padding:24px 16px 8px;font:500 var(--text-xs)/1.5 var(--font-mono);color:var(--muted)}
.nav-veil{display:none;position:fixed;inset:var(--drawer-top,var(--head-height)) 0 0;background:rgb(var(--text-rgb) / .2);z-index:60;border:0}
.nav-veil.is-open{display:block}
html.nav-open{overflow:hidden}
.site-footer{border-top:1px solid var(--border);background:var(--panel-2);padding-top:56px;padding-bottom:24px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:48px}
.footer-brand p{margin-top:20px;max-width:28em;color:var(--muted);font-size:var(--text-sm)}
.footer-title{font-size:var(--text-sm);margin:0 0 16px;font-weight:var(--weight-bold)}
.footer-links{display:flex;flex-wrap:wrap;gap:10px 20px;list-style:none;margin:0;padding:0}
.footer-links a{display:inline-flex;align-items:center;min-height:28px;font-size:var(--text-sm);color:var(--text);text-decoration:none}
.footer-links a:hover{color:var(--accent);text-decoration:underline}
.footer-languages{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.footer-languages a{min-height:28px;color:var(--muted);font-size:var(--text-sm)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-top:24px;font-size:var(--text-xs);color:var(--muted)}
.footer-bottom p{margin:0}
.reveal{transition:opacity var(--reveal-time) var(--ease),transform var(--reveal-time) var(--ease)}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
#server-status{position:relative;display:block;min-width:0;max-width:100%;min-height:120px;overflow:hidden;margin-block:24px}
#server-status+*{margin-top:32px}
@media(min-width:901px){.mobile-drawer.is-open,.nav-veil.is-open{display:none}html.nav-open{overflow:auto}}
@media(max-width:1280px){.nav{margin-left:40px}.nav ul{gap:24px}:root{--h1-size:58px}}
@media(max-width:1100px){.nav ul{gap:20px}.nav a{font-size:var(--text-sm)}.head-tools{gap:16px}}
@media(max-width:900px){.nav{display:none}.menu-toggle{display:inline-flex}.head-tools{margin-left:auto;gap:12px}.footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.footer-brand{grid-column:1/-1}}
@media(max-width:768px){:root{--h1-size:40px;--h2-size:30px;--h3-size:21px}.grid-three{grid-template-columns:minmax(0,1fr)}.section{padding-top:48px;padding-bottom:48px}}
@media(max-width:640px){
  :root{--gutter:16px;--head-height:64px}
  .no-break{white-space:normal}
  .grid-two,.footer-grid{grid-template-columns:minmax(0,1fr)}
  .brand{font-size:17px;gap:6px}.brand-mark{width:26px;height:26px}
  .head-tools{margin-left:auto;gap:8px}
  .lang{font-size:11px;gap:3px}
  .login{padding-inline:12px;min-height:36px;font-size:13px}
  .menu-toggle{padding:8px}
  .announce-inner{font-size:var(--text-xs);padding-inline:16px 64px;justify-content:flex-start;text-align:left}
  .announce a{margin-left:6px}.announce-sep{margin-inline:3px}
  .dismiss{font-size:11px}
  .panel,.card{padding:20px}
  .section{padding-top:40px;padding-bottom:40px}
  .tilt,.route-card,[data-tilt]{transform:none}
  .decor-layer,.decor-section{max-width:100%}
  .footer-grid{gap:28px}
  .footer-bottom{align-items:flex-start;flex-direction:column}
  .btn{padding-inline:20px}
}
@media(max-width:359px){.brand{font-size:15px}.brand-mark{width:23px;height:23px}.head-tools{gap:5px}.lang{font-size:10px}.login{padding-inline:9px}.menu-toggle{min-width:40px}}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal,.reveal.pending{opacity:1;transform:none}
}