:root{
  --bg:#F5EFE4;
  --bg-top:#FAF6EE;
  --bg-bottom:#F0E8DA;
  --panel:#FFFCF6;
  --panel-2:#EDE4D4;
  --panel-soft:#FAF5EC;
  --panel-select:#F2EADD;
  --border:#E3D8C5;
  --border-strong:#D3C5AE;
  --accent:#2F6F84;
  --accent-dark:#1E4E5F;
  --accent-hi:#3B8299;
  --accent-tint:rgba(47,111,132,.10);
  --accent-glow:rgba(47,111,132,.07);
  --accent-wave:rgba(47,111,132,.40);
  --accent-shadow:rgba(47,111,132,.12);
  --accent-shadow-strong:rgba(47,111,132,.24);
  --accent-0:rgba(47,111,132,0);
  --text:#2B241D;
  --text-muted:#6E6255;
  --text-faint:#A89C8C;
  --success:#3F7D4E;
  --warn:#B9822A;
  --error:#B5452F;
  --ink:#2E2924;
  --ink-2:#39322B;
  --ink-text:#E7DDCE;
  --ink-muted:#9D9182;
  --ink-hi:rgba(255,252,246,.12);
  --ink-line:rgba(255,252,246,.08);
  --chrome-red:#E06B5E;
  --chrome-amber:#E2B252;
  --chrome-green:#72AE66;
  --art-line:#BDB09E;
  --art-fill:#E9E0D2;
  --art-star:#DED3C2;
  --flag-red:#D13B3B;
  --flag-blue:#33477A;
  --flag-green:#3A8754;
  --flag-white:#FFFFFF;
  --flag-edge:rgba(43,36,29,.16);
  --on-accent:#FFFCF6;
  --ring:rgba(43,36,29,.10);
  --shadow-ink:rgba(43,36,29,.10);
  --shadow-ink-soft:rgba(43,36,29,.05);
  --shadow-ink-strong:rgba(43,36,29,.28);
  --hi-edge:rgba(255,255,255,.92);
  --sheen:rgba(255,255,255,.34);
  --sheen-soft:rgba(255,255,255,.10);
  --clear:rgba(255,255,255,0);
  --grain:#2B241D;
  --veil:rgba(43,36,29,.28);
  --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-md:10px;
  --r-lg:14px;
  --r-pill:999px;
  --r-round:50%;
  --r-tail:3px;
  --gutter:32px;
  --wrap:1232px;
  --header-height:64px;
  --anchor-offset:80px;
  --toc-offset:144px;
  --body-size:16px;
  --display-size:66px;
  --heading-size:34px;
  --small-heading-size:22px;
  --weight-normal:400;
  --weight-medium:500;
  --weight-semibold:600;
  --weight-bold:700;
  --weight-display:800;
  --ease-time:.2s;
  --paper-shadow:inset 0 1px 0 var(--hi-edge),0 12px 30px -18px var(--accent-shadow-strong);
}
*{box-sizing:border-box}
html{margin:0;-webkit-text-size-adjust:100%;scroll-padding-top:var(--anchor-offset);scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);font-size:var(--body-size);line-height:1.6;color:var(--text);background-color:var(--bg);background-image:linear-gradient(180deg,var(--bg-top) 0,var(--bg-bottom) 900px,var(--bg) 1180px);background-repeat:no-repeat;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--text);overflow-wrap:break-word;text-wrap:balance}
h1{font-weight:var(--weight-display);font-size:var(--display-size);line-height:1.1;letter-spacing:-.02em}
h2{font-size:var(--heading-size);font-weight:var(--weight-display);line-height:1.25;letter-spacing:-.02em}
h3{font-size:var(--small-heading-size);font-weight:var(--weight-bold);line-height:1.4}
a{color:var(--accent);text-underline-offset:.2em}
img{display:block;max-width:100%;height:auto}
svg{flex-shrink:0}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button,a,summary{-webkit-tap-highlight-color:var(--accent-tint)}
button{color:inherit}
button:disabled{cursor:not-allowed}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
[hidden]{display:none!important}
ul{padding:0;list-style:none}
ol{padding-left:1.5em}
code{font-family:var(--font-mono);overflow-wrap:anywhere;color:var(--accent-dark)}
pre{max-width:100%;overflow-x:auto;padding:20px;border:1px solid var(--border);border-radius:var(--r-sm);background:var(--panel-2)}
pre code{overflow-wrap:normal;white-space:pre}
table{font-variant-numeric:tabular-nums}
th,td{word-break:keep-all}
hr{border:0;border-top:1px solid var(--border);margin:24px 0}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-top:64px;padding-bottom:64px}
.section-head{margin-bottom:28px}
.section-head p{margin-top:12px;max-width:65ch;color:var(--text-muted)}
.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))}
.stack>*+*{margin-top:20px}
.mono{font-family:var(--font-mono)}
.muted{color:var(--text-muted)}
.no-break{white-space:nowrap}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.defs{position:absolute;width:0;height:0;overflow:hidden}
.grain{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:0;opacity:.03}
.grain-flood{flood-color:var(--grain)}
.page{position:relative;z-index:1}
.panel,.card{min-width:0;background:var(--panel);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--paper-shadow)}
.panel{padding:28px}
.card{padding:24px}
.decor-section{position:relative;overflow-x:clip}
#server-status{position:relative;display:block;min-height:120px;min-width:0;max-width:100%;overflow:hidden;margin-top:24px;margin-bottom:32px}
#server-status+*{margin-top:32px}
.prose{min-width:0;max-width:78ch;overflow-wrap:break-word}
.prose>*+*{margin-top:20px}
.prose h2{margin-top:44px}
.prose h3{margin-top:28px}
.prose p,.prose li{line-height:1.85}
.prose ul{padding-left:1.4em;list-style:disc}
.prose li+li{margin-top:8px}
.prose blockquote{padding:20px 24px;background:var(--panel-2);border-left:4px solid var(--accent);border-radius:var(--r-sm)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 26px;border:0;border-radius:var(--r-pill);font-size:16px;font-weight:var(--weight-bold);line-height:1.3;text-decoration:none;flex-shrink:0;white-space:nowrap;transition:transform var(--ease-time),box-shadow var(--ease-time),background-color var(--ease-time)}
.btn svg{width:18px;height:18px}
.btn-primary{color:var(--on-accent);background:linear-gradient(180deg,var(--accent-hi),var(--accent) 55%,var(--accent-dark));box-shadow:inset 0 1px 0 var(--sheen),0 12px 26px -10px var(--accent-shadow-strong),0 1px 2px var(--shadow-ink)}
.btn-primary:hover,.btn-primary.is-hover{transform:translateY(-1px);box-shadow:inset 0 1px 0 var(--sheen),0 16px 30px -10px var(--accent-shadow-strong),0 1px 2px var(--shadow-ink)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary,.btn-bubble{position:relative;color:var(--text);background:var(--panel);border:1.5px solid var(--border-strong);box-shadow:0 8px 18px -12px var(--shadow-ink)}
.btn-bubble svg{color:var(--accent)}
.btn-bubble::after{content:"";position:absolute;left:50%;bottom:-7px;width:12px;height:12px;background:var(--panel);border-right:1.5px solid var(--border-strong);border-bottom:1.5px solid var(--border-strong);border-bottom-right-radius:var(--r-tail);transform:translateX(-50%) rotate(45deg)}
.btn-bubble:hover,.btn-bubble:hover::after,.btn-secondary:hover{border-color:var(--accent)}
.btn:disabled,.btn[aria-disabled="true"]{background:var(--panel-2);color:var(--text-muted);box-shadow:none;transform:none}
.btn.is-focus{outline:2px solid var(--accent);outline-offset:3px}
.btn-small{min-height:40px;padding-inline:18px;font-size:14px}
.cta-row{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.topbar{position:relative;z-index:60;background:var(--clear)}
.topbar>.wrap{display:flex;align-items:center;flex-wrap:nowrap;height:var(--header-height);gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none;color:var(--text);font-family:var(--font-display);font-size:19px;font-weight:var(--weight-display);letter-spacing:-.01em;white-space:nowrap}
.brand img{width:30px;height:30px;flex-shrink:0}
.nav{margin-left:auto;flex:1;min-width:0}
.nav ul{display:flex;align-items:center;justify-content:flex-end;gap:4px;list-style:none;margin:0;padding:0}
.nav li{min-width:0}
.nav a{display:flex;align-items:center;justify-content:center;gap:6px;min-height:34px;padding:0 10px;border-radius:var(--r-sm);color:var(--text-muted);font-size:14px;font-weight:var(--weight-medium);text-decoration:none;white-space:nowrap;transition:background-color var(--ease-time),color var(--ease-time)}
.nav svg{width:16px;height:16px}
.nav a:hover{color:var(--text);background:var(--accent-tint)}
.nav a[aria-current="page"]{color:var(--text);font-weight:var(--weight-semibold);background:var(--panel);box-shadow:0 0 0 1px var(--border),inset 0 1px 0 var(--hi-edge)}
.nav a[aria-current="page"] svg{color:var(--accent)}
.tools{display:flex;align-items:center;gap:10px;padding-left:16px;border-left:1px solid var(--border);flex-shrink:0}
.language{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;width:auto;min-height:34px;padding:0 10px;border:0;border-radius:var(--r-sm);background:var(--clear);font-size:14px;color:var(--text-muted)}
.lang-t{white-space:nowrap}
.lang svg{width:15px;height:15px}
.language-panel{position:absolute;right:0;top:calc(100% + 10px);z-index:80;min-width:170px;padding:6px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--panel);box-shadow:0 12px 30px var(--shadow-ink)}
.language-panel a{display:flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:var(--r-sm);text-decoration:none;color:var(--text)}
.language-panel a:hover,.language-panel a[aria-current="true"]{background:var(--accent-tint);color:var(--accent-dark)}
.login{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:36px;padding:0 16px;border-radius:var(--r-pill);background:var(--text);color:var(--panel);font-size:14px;font-weight:var(--weight-semibold);text-decoration:none;white-space:nowrap;box-shadow:0 6px 14px -8px var(--shadow-ink-strong)}
.login svg{width:15px;height:15px}
.login:hover{background:var(--accent-dark)}
.menu-toggle{display:none;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:10px;border:1px solid var(--border);border-radius:var(--r-sm);background:var(--panel);color:var(--text)}
.menu-toggle svg{width:20px;height:20px}
.menu-drawer{display:none}
.menu-veil{display:none}
html.nav-open{overflow:hidden}
.site-footer{padding-top:48px;padding-bottom:28px;border-top:1px solid var(--border);background:var(--panel-soft)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:36px}
.footer-grid>*{min-width:0}
.footer-brand p{margin-top:16px;color:var(--text-muted);max-width:32ch}
.footer-title{font-size:14px;font-weight:var(--weight-bold);margin-bottom:12px;color:var(--text)}
.footer-links{display:grid;gap:4px}
.footer-links a{display:inline-flex;align-items:center;min-height:28px;color:var(--text-muted);text-decoration:none;font-size:14px;overflow-wrap:anywhere}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--border);margin-top:36px;padding-top:20px;font-size:13px;color:var(--text-muted)}
.footer-legal{display:flex;gap:18px;flex-wrap:wrap}
.footer-legal a{display:inline-flex;align-items:center;min-height:28px;color:var(--text-muted)}
.reveal{transition:opacity .35s ease,transform .35s ease}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
@media(max-width:1180px){
  :root{--display-size:56px}
  .lang-t{display:none}
  .topbar>.wrap{gap:16px}
  .nav a{padding-inline:8px}
}
@media(max-width:1040px){
  .nav-t{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
  .nav a{padding-inline:10px}
}
@media(max-width:768px){
  :root{--display-size:40px;--heading-size:28px;--gutter:24px}
  .topbar>.wrap{gap:12px}
  .nav{display:none}
  .tools{margin-left:auto;padding-left:0;border-left:0;gap:6px}
  .menu-toggle{display:inline-flex}
  .menu-drawer{position:fixed;z-index:55;top:var(--header-height);left:0;right:0;height:calc(100dvh - var(--header-height));max-height:calc(100dvh - var(--header-height));padding:20px var(--gutter) 40px;background:var(--panel);overflow-y:auto;overscroll-behavior:contain;border-top:1px solid var(--border)}
  .menu-drawer:not([hidden]){display:block}
  .menu-drawer ul{display:grid;gap:4px}
  .menu-drawer a{display:flex;align-items:center;gap:12px;width:100%;min-height:48px;padding:12px 16px;border-radius:var(--r-sm);text-decoration:none;color:var(--text)}
  .menu-drawer a:hover,.menu-drawer a[aria-current]{background:var(--accent-tint);color:var(--accent-dark)}
  .menu-drawer svg{width:18px;height:18px}
  .drawer-languages{border-top:1px solid var(--border);padding-top:16px;margin-top:16px}
  .menu-veil{position:fixed;top:var(--header-height);inset-inline:0;bottom:0;z-index:50;border:0;background:var(--veil)}
  .menu-veil:not([hidden]){display:block}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-three{grid-template-columns:1fr}
  .grid-five{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding-top:44px;padding-bottom:44px}
}
@media(max-width:640px){
  :root{--gutter:16px;--display-size:36px;--small-heading-size:20px}
  .no-break{white-space:normal}
  .tilt,.sticky,.chip-cov,[data-tilt]{transform:none}
  .decor-section>*[aria-hidden="true"]{max-width:100%}
  .brand{font-size:16px;gap:7px}
  .brand img{width:27px;height:27px}
  .tools{gap:4px}
  .login{padding-inline:12px;font-size:13px}
  .login svg{display:none}
  .lang{padding-inline:6px}
  .panel,.card{padding:20px}
  .footer-grid{gap:28px 20px}
  .footer-brand{grid-column:1/-1}
  .btn{padding-inline:22px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:0s!important;animation-duration:0s!important}
  .reveal,.reveal.pending,.reveal.shown{opacity:1;transform:none}
}