:root{
  --bg:#FAF9F7;--bg-panel:#FFFFFF;--bg-panel-2:#F4F2EF;--frame:#EFECE8;
  --border:#E7E3DE;--border-soft:#EEEAE5;--border-strong:#D6D0C9;
  --accent:#F5812A;--accent-2:#FFA05A;--accent-dark:#C9600F;--accent-ink:#5C2B06;
  --honey:#FFE3CC;--honey-2:#FFD5B0;--accent-wash:#FFF2E8;--tag-solid:#F8A866;--sand:#EFE7DC;--sand-ink:#6E5C49;
  --text:#1F1D1B;--text-muted:#6B6661;--text-faint:#9C958E;
  --success:#2FA866;--success-soft:#E2F3E9;--warn:#D99A00;--error:#E04848;
  --accent-a10:rgba(245,129,42,.10);--accent-a16:rgba(245,129,42,.16);--accent-a28:rgba(245,129,42,.28);--accent-dark-a40:rgba(201,96,15,.40);
  --ink-a04:rgba(31,29,27,.04);--ink-a06:rgba(31,29,27,.06);--ink-a10:rgba(31,29,27,.10);
  --white-hl:rgba(255,255,255,.92);--white-a60:rgba(255,255,255,.6);--white-a35:rgba(255,255,255,.35);--clear:rgba(255,255,255,0);
  --flag-red:#D7303A;--flag-blue:#26386F;--flag-white:#FFFFFF;--flag-edge:rgba(31,29,27,.14);
  --font-display:"Inter","Noto Sans SC","Noto Sans JP","Noto Sans KR","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","Noto Sans SC","Noto Sans JP","Noto Sans KR","PingFang SC","Hiragino Sans","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --r-xs:5px;--r-sm:7px;--r-inner:9px;--r-card:10px;--r-md:12px;--r-frame:14px;--r-panel:28px;--r-pill:999px;--r-round:50%;
  --gutter:max(32px,calc((100% - 1280px)/2));--wrap-gutter:32px;--content-width:1344px;
  --header-height:76px;--anchor-gap:16px;--toc-height:64px;
  --shadow-card:0 1px 2px var(--ink-a04),0 18px 40px -24px var(--accent-a16);
  --shadow-hover:0 20px 48px -22px var(--accent-a28);
  --ease:200ms ease;--reveal-time:350ms;
  --size-body:16px;--size-small:14px;--weight-body:400;--weight-medium:500;--weight-bold:700;--weight-display:800;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-height) + var(--anchor-gap))}
html.nav-open{overflow:hidden}
body{margin:0;background:var(--bg);color:var(--text);font:var(--weight-body) var(--size-body)/1.6 var(--font-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
main,section,article,aside,nav,header,footer,div{min-width:0}
a{color:inherit;text-underline-offset:4px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed}
img,svg{max-width:100%;vertical-align:middle}
img{height:auto}
svg{flex-shrink:0}
p,ul,ol,dl,blockquote,pre{margin:0}
ul{padding-left:1.4em}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.25;margin:0 0 20px;text-wrap:balance}
h1{font-size:clamp(52px,4.8vw,68px);font-weight:var(--weight-display);letter-spacing:-.02em;line-height:1.1}
h2{font-size:clamp(28px,3vw,40px);font-weight:var(--weight-display);letter-spacing:-.02em}
h3{font-size:22px;font-weight:var(--weight-bold)}
p+p{margin-top:16px}
:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:2px solid var(--accent-dark);outline-offset:4px}
[hidden]{display:none!important}
.wrap{width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:var(--wrap-gutter)}
.sec{padding-top:72px;padding-bottom:72px}
.stack{display:grid;gap:24px}
.cluster{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.muted{color:var(--text-muted)}
.hl{color:var(--accent)}
.mono{font-family:var(--font-mono)}
.no-break{white-space:nowrap}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.panel-card{padding:28px;border:1px solid var(--border);border-radius:var(--r-frame);background:var(--bg-panel);box-shadow:var(--shadow-card)}
.section-head{text-align:center;margin-bottom:40px}
.section-head h2{margin-top:18px}
.eyebrow{display:inline-flex;align-items:center;min-height:28px;padding:2px 14px;border-radius:var(--r-pill);border:1.5px solid var(--accent);background:var(--bg-panel);color:var(--accent-dark);font-size:13px;font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:12px 28px;border:0;border-radius:var(--r-pill);font-size:18px;font-weight:700;line-height:1.4;text-decoration:none;white-space:nowrap;flex-shrink:0;transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease)}
.btn-go,.btn-primary{background:linear-gradient(180deg,var(--accent-2),var(--accent) 62%);color:var(--bg-panel);text-shadow:0 1px 1px var(--accent-dark-a40);box-shadow:inset 0 1px 0 var(--white-a35),0 12px 26px -10px var(--accent-a28),0 2px 4px var(--accent-a16)}
.btn-go:hover,.btn-primary:hover,.btn-demo-hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 var(--white-a35),0 16px 32px -10px var(--accent-a28)}
.btn-line,.btn-secondary{background:var(--white-a60);color:var(--text);border:1.5px solid var(--border-strong);font-weight:600}
.btn-line:hover,.btn-secondary:hover{background:var(--bg-panel);transform:translateY(-1px)}
.btn:active,.btn-demo-active{transform:translateY(1px)}
.btn:disabled{background:var(--bg-panel-2);color:var(--text-muted);box-shadow:none;text-shadow:none}
.btn-small{min-height:44px;font-size:14px;padding:10px 20px}
.btn-demo-focus{outline:2px solid var(--accent-dark);outline-offset:4px}
#site-header{position:relative;z-index:100;min-height:var(--header-height)}
.nav{position:relative;z-index:103;display:flex;align-items:center;gap:24px;height:var(--header-height);padding-inline:var(--gutter)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.brand-mark{display:block;flex:none;width:34px;height:34px;border-radius:var(--r-round);box-shadow:0 6px 14px -6px var(--accent-a28)}
.brand-name{font:800 20px/1 var(--font-display);letter-spacing:-.025em}
.desktop-nav{flex:1;min-width:0}
.menu{display:flex;align-items:center;list-style:none;margin:0 auto;padding:4px;gap:2px;width:max-content;max-width:100%;border-radius:var(--r-pill);background:var(--white-a60);border:1px solid var(--border-soft);box-shadow:0 1px 2px var(--ink-a04)}
.menu li{flex:none}
.menu a{display:flex;align-items:center;min-height:34px;padding:7px 13px;border-radius:var(--r-pill);font-size:14px;line-height:20px;color:var(--text-muted);text-decoration:none;white-space:nowrap;transition:color var(--ease),background-color var(--ease)}
.menu a:hover{color:var(--text);background:var(--bg-panel)}
.menu a[aria-current=page]{background:var(--honey);color:var(--accent-dark);font-weight:600}
.nav-end{display:flex;align-items:center;gap:10px;flex-shrink:0;margin-left:auto}
.lang-box{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:44px;width:auto;min-height:38px;padding:8px 12px;border:0;border-radius:var(--r-pill);background:var(--clear);color:var(--text-muted);font:500 14px/1 var(--font-body)}
.lang-text{white-space:nowrap}
.lang:hover{background:var(--white-a60);color:var(--text)}
.lang-panel{position:absolute;right:0;top:calc(100% + 8px);z-index:110;min-width:180px;padding:8px;border:1px solid var(--border);border-radius:var(--r-md);background:var(--bg-panel);box-shadow:var(--shadow-hover)}
.lang-panel a{display:flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:var(--r-sm);text-decoration:none}
.lang-panel a:hover,.lang-panel a[aria-current]{background:var(--accent-wash);color:var(--accent-dark)}
.login{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:8px 20px;border-radius:var(--r-pill);background:var(--text);color:var(--bg-panel);font-size:14px;font-weight:600;line-height:22px;text-decoration:none;white-space:nowrap;box-shadow:0 6px 16px -8px var(--ink-a10)}
.login:hover{transform:translateY(-1px)}
.nav-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-md);color:var(--text);background:var(--bg-panel)}
.nav-line{display:block;width:20px;height:2px;background:currentColor}
.mobile-drawer{display:none}
.nav-veil{display:none}
.footer{border-top:1px solid var(--border);background:linear-gradient(180deg,var(--bg-panel-2),var(--bg));padding-top:56px;padding-bottom:28px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:48px}
.footer-brand p{margin-top:20px;max-width:30em;color:var(--text-muted)}
.footer-title{font-size:15px;margin-bottom:16px}
.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 20px;list-style:none;padding:0}
.footer-links a,.footer-languages a,.footer-legal a{display:inline-flex;align-items:center;min-height:32px;text-decoration:none;font-size:14px;color:var(--text-muted)}
.footer a:hover{color:var(--accent-dark)}
.footer-languages{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:36px;padding-top:24px;border-top:1px solid var(--border)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;font-size:13px;color:var(--text-muted)}
.footer-legal{display:flex;flex-wrap:wrap;gap:20px}
.reveal{transition:opacity var(--reveal-time) ease,transform var(--reveal-time) ease}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
.prose{max-width:820px}
.prose p,.prose li{line-height:1.9}
.prose h2{margin-top:48px;font-size:30px}
.prose h3{margin-top:32px}
.prose ul,.prose ol{margin-block:16px}
code{font-family:var(--font-mono);font-size:.9em;overflow-wrap:anywhere;background:var(--bg-panel-2);border-radius:var(--r-xs);padding:2px 5px}
pre{max-width:100%;overflow-x:auto;padding:20px;border-radius:var(--r-md);background:var(--bg-panel-2);border:1px solid var(--border)}
pre code{white-space:pre;overflow-wrap:normal;padding:0;background:var(--clear)}
#server-status{position:relative;display:block;min-height:120px;max-width:100%;overflow:hidden;margin-block:24px}
#server-status+*{margin-top:32px}
.decorated,.top,[data-hero-visual]{overflow-x:clip;max-width:100%}
[data-counter]{display:inline-block;min-width:4ch;font-variant-numeric:tabular-nums;font-family:var(--font-mono)}
@media(max-width:1299px){.nav{gap:16px}.menu a{padding-inline:10px}}
@media(max-width:1179px){
  .desktop-nav{overflow-x:auto;scrollbar-width:none}
  .menu a{padding-inline:8px;font-size:13px}
  .nav{gap:12px}
}
@media(max-width:1099px){
  .desktop-nav{display:none}
  .nav{padding-inline:24px}
  .nav-end{margin-left:auto}
  .nav-toggle{display:inline-flex}
  .mobile-drawer{display:block;position:fixed;z-index:102;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;padding:16px 24px 40px;background:var(--bg-panel);border-top:1px solid var(--border)}
  .mobile-drawer a{display:flex;align-items:center;width:100%;min-height:46px;padding:10px 14px;border-radius:var(--r-md);text-decoration:none}
  .mobile-drawer a[aria-current=page]{background:var(--honey);color:var(--accent-dark)}
  .drawer-languages{display:grid;gap:4px;border-top:1px solid var(--border);margin-top:16px;padding-top:16px}
  .nav-veil{display:block;position:fixed;z-index:101;inset:var(--header-height) 0 0;background:var(--ink-a10);border:0}
}
@media(max-width:768px){
  :root{--wrap-gutter:20px;--header-height:68px}
  h1{font-size:40px}
  .sec{padding-top:48px;padding-bottom:48px}
  .btn{min-height:52px;padding-inline:24px;font-size:17px}
  .btn-small{min-height:44px;font-size:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media(max-width:640px){
  .no-break{white-space:normal}
  .tilt,[data-tilt]{transform:none}
  .decorated,[data-hero-visual]{max-width:100%}
  .nav{gap:8px;padding-inline:16px;flex-wrap:nowrap}
  .nav-end{gap:4px;margin-left:auto}
  .brand{gap:7px}
  .brand-mark{width:28px;height:28px}
  .brand-name{font-size:17px}
  .lang-text{display:none}
  .lang{padding:8px;min-height:44px}
  .login{padding-inline:12px}
  .mobile-drawer{padding-inline:16px}
  .panel-card{padding:20px}
}
@media(max-width:359px){.brand-name{font-size:15px}.brand-mark{width:25px;height:25px}.login{padding-inline:9px}.nav{gap:4px}}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal,.reveal.pending{opacity:1;transform:none}
}