:root {
  --bg:#F6EDDB;
  --bg-hero-top:#FBF5E8;
  --bg-hero-bottom:#F1E6CF;
  --panel:#FFFBF3;
  --panel-2:#EFE4CE;
  --panel-glass:rgba(255,251,243,.72);
  --border:#E0D2B8;
  --accent:#2E7D3C;
  --accent-2:#4E9A57;
  --accent-dark:#1F5A2A;
  --text:#2A2118;
  --muted:#6F6353;
  --success:#3A8B4E;
  --warn:#B7791F;
  --error:#B23A2E;
  --on-accent:#FFFFFF;
  --accent-a06:rgba(46,125,60,.06);
  --accent-a10:rgba(46,125,60,.10);
  --accent-a14:rgba(46,125,60,.14);
  --accent-a18:rgba(46,125,60,.18);
  --accent-a24:rgba(46,125,60,.24);
  --accent-a36:rgba(46,125,60,.36);
  --ink-a04:rgba(42,33,24,.04);
  --ink-a06:rgba(42,33,24,.06);
  --ink-a08:rgba(42,33,24,.08);
  --ink-a12:rgba(42,33,24,.12);
  --ink-a16:rgba(42,33,24,.16);
  --ink-a22:rgba(42,33,24,.22);
  --hi:rgba(255,255,255,.9);
  --hi-a50:rgba(255,255,255,.5);
  --hi-a28:rgba(255,255,255,.28);
  --hi-a16:rgba(255,255,255,.16);
  --flag-white:#FFFDF8;
  --flag-red:#B23A2E;
  --flag-blue:#2F3D66;
  --flag-green:#2E7D3C;
  --r-xs:5px;
  --r-s:8px;
  --r:10px;
  --r-m:12px;
  --r-dock:16px;
  --r-l:18px;
  --r-pill:999px;
  --gutter:24px;
  --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;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
html.nav-open{overflow:hidden}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font-body);-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
img,svg{max-width:100%}
svg{display:block;flex:none}
img{height:auto}
a:focus-visible,button:focus-visible,summary:focus-visible,[role="tab"]:focus-visible,select:focus-visible{outline:2px solid var(--accent-dark);outline-offset:2px}
h1,h2,h3{font-family:var(--font-display);line-height:1.18;letter-spacing:-.02em;text-wrap:balance}
h1{font-size:clamp(52px,5.2vw,72px);font-weight:800}
h2{font-size:clamp(30px,3.5vw,44px)}
h3{font-size:clamp(21px,2vw,26px)}
p{margin:0 0 1em}
code,kbd,pre,.mono{font-family:var(--font-mono)}
code{overflow-wrap:anywhere}
pre{max-width:100%;overflow-x:auto;padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:var(--r)}
pre code{overflow-wrap:normal}
.no-break{white-space:nowrap}
.wrap{width:min(1208px,100%);margin-inline:auto;padding-inline:var(--gutter);min-width:0}
.wrap > *,main > *,article > *,section > *{min-width:0}
.sec{padding-top:88px;padding-bottom:88px}
.section-lead{max-width:700px;margin:0 auto 36px;text-align:center}
.section-lead p{color:var(--muted)}
.panel,.card{min-width:0;border:1px solid var(--border);border-radius:var(--r-m);background:var(--panel);box-shadow:inset 0 1px 0 var(--hi),0 24px 44px -30px var(--accent-a24)}
.card{padding:24px}
.muted{color:var(--muted)}
.kw{padding:0 .06em;border-radius:var(--r-xs);background:linear-gradient(180deg,transparent 56%,var(--accent-a18) 56%,var(--accent-a18) 90%,transparent 90%)}
.reveal{transition:opacity .65s ease,transform .65s ease}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 18px 0 14px;border-radius:var(--r);font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;white-space:nowrap;flex-shrink:0}
.btn svg{width:17px;height:17px}
.btn-main,.btn-primary{color:var(--on-accent);border:1px solid var(--accent-dark);background:linear-gradient(180deg,var(--accent-2),var(--accent));box-shadow:inset 0 1px 0 var(--hi-a28),0 10px 22px -8px var(--accent-a36),0 1px 2px var(--ink-a08)}
.btn-main:hover,.btn-primary:hover{background:linear-gradient(180deg,var(--accent),var(--accent-dark))}
.btn-ghost,.btn-secondary{color:var(--text);border:1px solid var(--border);background:var(--panel);box-shadow:inset 0 1px 0 var(--hi),0 10px 22px -12px var(--accent-a24),0 1px 2px var(--ink-a06)}
.btn-ghost:hover,.btn-secondary:hover{background:var(--bg-hero-top)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed}
.badge{display:inline-flex;align-items:center;gap:7px;max-width:100%;min-height:26px;padding:3px 10px;border:1px solid var(--border);border-radius:var(--r-pill);background:var(--panel);font:12px/1.35 var(--font-mono);color:var(--muted);overflow:hidden}
.badge-dot{width:7px;height:7px;border-radius:50%;background:var(--success);flex-shrink:0}
.grain{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:60;opacity:.03;mix-blend-mode:multiply}
.grain-ink{flood-color:var(--text)}
.fw{fill:var(--flag-white)}.fr{fill:var(--flag-red)}.fb{fill:var(--flag-blue)}.fg{fill:var(--flag-green)}
.fe{fill:none;stroke:var(--ink-a16);stroke-width:1}
.ico-line{fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.bolt{fill:currentColor}

/* Navigation. The tools are siblings of both navigation lists. */
.site-head{position:relative;z-index:30;width:min(1160px,calc(100% - 32px));margin:0 auto}
.nav{position:relative;display:flex;align-items:center;gap:16px;min-height:52px;padding:7px 8px 7px 14px;border-radius:var(--r-m);background:var(--panel-glass);border:1px solid var(--border);box-shadow:inset 0 1px 0 var(--hi),0 12px 32px -20px var(--accent-a24),0 1px 2px var(--ink-a04);-webkit-backdrop-filter:blur(14px) saturate(1.1);backdrop-filter:blur(14px) saturate(1.1)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;font-family:var(--font-display);font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand img{width:28px;height:28px;flex:none}
.brand-local{font-weight:500;color:var(--muted)}
.nav-links{display:flex;align-items:center;justify-content:center;flex:1;gap:2px;min-width:0;list-style:none;margin:0;padding:0}
.nav-links a{display:inline-flex;align-items:center;justify-content:center;min-height:32px;padding:0 12px;border-radius:var(--r-pill);font-size:14px;color:var(--muted);white-space:nowrap}
.nav-links a:hover{color:var(--text);background:var(--ink-a04)}
.nav-links a[aria-current="page"],.nav-drawer a[aria-current="page"]{background:var(--panel-2);color:var(--text);font-weight:600;box-shadow:inset 0 0 0 1px var(--ink-a06),inset 0 1px 0 var(--hi-a50)}
.nav-tools{display:flex;align-items:center;gap:6px;flex:none;margin-left:auto}
.lang-switch{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;min-height:36px;width:auto;padding:0 9px;border:0;border-radius:var(--r-s);background:transparent;color:var(--muted);font-size:13px;white-space:nowrap}
.lang:hover{background:var(--ink-a04);color:var(--text)}
.lang svg{width:15px;height:15px}
.lang-menu{position:absolute;top:calc(100% + 10px);right:0;z-index:50;min-width:160px;padding:6px;border:1px solid var(--border);border-radius:var(--r-m);background:var(--panel);box-shadow:0 20px 36px -16px var(--accent-a24);list-style:none;margin:0}
.lang-menu[hidden]{display:none}
.lang-menu a{display:flex;align-items:center;min-height:40px;padding:6px 12px;border-radius:var(--r-s);white-space:nowrap}
.lang-menu a:hover,.lang-menu a[aria-current="true"]{background:var(--panel-2)}
.login{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 18px;border-radius:var(--r-pill);background:var(--text);color:var(--panel);font-size:14px;font-weight:600;white-space:nowrap;box-shadow:inset 0 1px 0 var(--hi-a16),0 6px 14px -6px var(--ink-a22)}
.login:hover{background:var(--accent-dark);color:var(--on-accent)}
.menu-toggle{display:none;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:0;border-radius:var(--r-s);background:transparent;color:var(--text)}
.menu-toggle svg{width:22px;height:22px}
.nav-drawer{display:none}
.nav-veil{display:none}

/* Footer */
.site-footer{padding-top:64px;padding-bottom:24px;border-top:1px solid var(--border);background:var(--panel-2)}
.footer-grid{display:grid;grid-template-columns:minmax(220px,1.4fr) repeat(2,minmax(0,1fr));gap:48px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px}
.footer-brand img{width:32px;height:32px}
.footer-intro{max-width:320px;margin-top:16px;color:var(--muted)}
.footer-title{margin:0 0 14px;font-size:14px;font-weight:700}
.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 14px;list-style:none;margin:0;padding:0}
.footer-links a,.footer-keywords a,.footer-langs a{display:inline-flex;align-items:center;min-height:32px;color:var(--muted);font-size:13px}
.footer-links a:hover,.footer-keywords a:hover,.footer-langs a:hover{color:var(--accent-dark)}
.footer-keywords,.footer-langs{display:flex;flex-wrap:wrap;gap:4px 14px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:48px;padding-top:20px;border-top:1px solid var(--border);color:var(--muted);font:12px/1.6 var(--font-mono)}
.footer-bottom a{min-height:24px}
.footer-bottom a:hover{color:var(--text)}
@media(max-width:1080px){.nav-links a{padding:0 9px;font-size:13px}}
@media(max-width:960px){
  .nav-links{display:none}
  .nav-tools{margin-left:auto}
  .menu-toggle{display:inline-flex}
  .nav-drawer{position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:31;max-height:calc(100dvh - 84px);overflow-y:auto;overscroll-behavior:contain;padding:10px;border:1px solid var(--border);border-radius:var(--r-m);background:var(--panel);box-shadow:0 24px 46px -18px var(--accent-a24)}
  .nav-drawer.is-open{display:block}
  .nav-drawer ul{list-style:none;margin:0;padding:0}
  .nav-drawer a{display:flex;align-items:center;width:100%;min-height:44px;padding:10px 14px;border-radius:var(--r-s);font-size:15px}
  .nav-drawer a:hover{background:var(--panel-2)}
  .drawer-languages{margin-top:8px;padding-top:8px;border-top:1px solid var(--border)}
  .nav-veil.is-open{display:block;position:fixed;inset:0;z-index:20;background:var(--ink-a22)}
}
@media(max-width:768px){
  h1{font-size:clamp(28px,8vw,40px)}
  .sec{padding-top:64px;padding-bottom:64px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .footer-grid > :first-child{grid-column:1/-1}
}
@media(max-width:640px){
  :root{--gutter:16px}
  .no-break{white-space:normal}
  .site-head{width:calc(100% - 32px)}
  .lang-text{display:none}
  .lang-menu{right:-42px}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid > :first-child{grid-column:auto}
  .tilt-card,.tilt-decor{transform:none!important}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.reveal.pending{opacity:1;transform:none;transition:none}
}