:root{
  color-scheme:light;
  --bg:#FAEFE2;
  --bg-panel:#FFFAF3;
  --bg-panel-2:#F3E4D2;
  --border:#E6D3BE;
  --accent:#6328E8;
  --accent-dark:#3F129E;
  --text:#2B1D16;
  --text-muted:#6E5A4C;
  --success:#1E8A4C;
  --warn:#C7861A;
  --error:#C8382E;
  --white:#FFFFFF;
  --peach:#FFC9A8;
  --peach-hi:#FFE4D0;
  --honey:#FFA45C;
  --coral:#F47A5E;
  --coral-deep:#D65A40;
  --flag-red:#D7322B;
  --flag-blue:#1F2F6E;
  --flag-green:#16894B;
  --clear:transparent;
  --accent-glow:color-mix(in srgb,var(--accent) 58%,var(--white));
  --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","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --r-pill:999px;
  --r-xs:9px;
  --r-sm:12px;
  --r-card:18px;
  --r-lg:22px;
  --r-arc:80px;
  --r-round:50%;
  --r-phone:30px;
  --r-screen:24px;
  --r-tab-line:3px 3px 0 0;
  --r-organic:42% 58% 48% 52% / 48% 35% 65% 52%;
  --gutter:24px;
  --wrap:1288px;
  --header-height:68px;
  --anchor-space:88px;
  --toc-space:156px;
  --size-body:16px;
  --size-h1:clamp(52px,4.6vw,68px);
  --size-h2:clamp(28px,3.1vw,44px);
  --size-h3:22px;
  --weight-display:900;
  --shadow-card:0 2px 6px color-mix(in srgb,var(--text) 7%,var(--clear)),0 18px 36px -18px color-mix(in srgb,var(--accent) 22%,var(--clear)),0 36px 72px -20px color-mix(in srgb,var(--accent) 12%,var(--clear));
  --shadow-soft:0 10px 24px -14px color-mix(in srgb,var(--text) 30%,var(--clear));
  --hi-edge:inset 0 1px 0 color-mix(in srgb,var(--white) 85%,var(--clear));
  --veil:color-mix(in srgb,var(--text) 30%,var(--clear));
  --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .17 0 0 0 0 .11 0 0 0 0 .09 0 0 0 .03 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:var(--anchor-space);scroll-behavior:smooth}
body{margin:0;font:var(--size-body)/1.6 var(--font-body);color:var(--text);background:var(--grain),var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
[hidden]{display:none!important}
a{color:inherit;text-underline-offset:4px}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button,a,summary{-webkit-tap-highlight-color:var(--clear)}
button{color:inherit}
img,video{max-width:100%;height:auto}
svg{vertical-align:middle;flex-shrink:0}
h1,h2,h3{font-family:var(--font-display);line-height:1.2;text-wrap:balance;overflow-wrap:break-word}
h1{font-size:var(--size-h1);font-weight:var(--weight-display);letter-spacing:-.02em}
h2{font-size:var(--size-h2);font-weight:var(--weight-display);letter-spacing:-.02em}
h3{font-size:var(--size-h3);font-weight:800}
p{margin:0 0 1.2em}
h1,h2,h3,p,li{min-width:0}
code{font-family:var(--font-mono);overflow-wrap:anywhere}
pre{max-width:100%;overflow-x:auto;padding:20px;background:var(--bg-panel-2);border:1px solid var(--border);border-radius:var(--r-sm)}
pre code{overflow-wrap:normal;white-space:pre}
:focus-visible{outline:2px solid var(--accent-dark);outline-offset:3px;border-radius:var(--r-xs)}
::selection{background:var(--accent-dark);color:var(--white)}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-top:80px;padding-bottom:80px}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{margin:12px 0 18px}
.grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.grid>*{min-width:0}
.panel,.card{min-width:0;padding:28px;background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--hi-edge),var(--shadow-card)}
.muted{color:var(--text-muted)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.no-break{white-space:nowrap}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.svg-defs{position:absolute;width:0;height:0;overflow:hidden}
.decor-section{position:relative;overflow-x:clip}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:12px 28px;border:1px solid var(--clear);border-radius:var(--r-pill);font:800 16.5px/1.4 var(--font-body);letter-spacing:.01em;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,background-color .2s;flex-shrink:0;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn:hover{transform:translateY(-2px)}
.btn:active,.btn.is-pressed{transform:translateY(1px)}
.btn-primary{color:var(--white);background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 72%,var(--accent-dark)));box-shadow:inset 0 1px 0 color-mix(in srgb,var(--white) 30%,var(--clear)),0 18px 34px -14px color-mix(in srgb,var(--accent) 62%,var(--clear))}
.btn-primary:hover,.btn-primary.is-hover{background:var(--accent-dark)}
.btn-dark,.btn-secondary{color:var(--bg-panel);background:var(--text);box-shadow:inset 0 1px 0 color-mix(in srgb,var(--white) 14%,var(--clear)),0 16px 30px -16px color-mix(in srgb,var(--text) 60%,var(--clear))}
.btn-outline{border-color:var(--text);background:var(--bg-panel);color:var(--text)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn-small{min-height:44px;padding:9px 20px;font-size:14px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.annx{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden}
.annx:checked+.notice{display:none}
.notice{background:var(--bg-panel-2);border-bottom:1px solid var(--border)}
.notice .wrap{position:relative;display:flex;align-items:center;justify-content:center;gap:20px;min-height:40px;padding-inline:64px}
.notice p{margin:0;font-size:13.5px;font-weight:600;letter-spacing:.01em;text-align:center}
.notice-dot{margin:0 8px;color:var(--text-muted)}
.notice a{display:inline-flex;align-items:center;min-height:24px;font-size:13px;font-weight:800;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:5px}
.notice a:hover{color:var(--accent-dark)}
.notice-x{position:absolute;right:24px;top:50%;width:24px;height:24px;margin-top:-12px;border:0;border-radius:var(--r-round);display:grid;place-items:center;padding:0;background:var(--text);color:var(--bg-panel);cursor:pointer;transition:transform .2s}
.notice-x:hover{transform:scale(1.08)}
.notice-x svg{width:10px;height:10px}
.top{position:relative;z-index:40;background:color-mix(in srgb,var(--bg-panel) 72%,var(--clear));border-bottom:1px solid var(--border)}
.top>.wrap{display:flex;align-items:center;gap:28px;height:var(--header-height);flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.logo{width:34px;height:34px;flex:none;filter:drop-shadow(0 6px 10px color-mix(in srgb,var(--accent) 26%,var(--clear)))}
.brand-word{font-family:var(--font-display);font-weight:900;font-size:20px;letter-spacing:-.025em;color:var(--text)}
.brand-sub{font-size:12.5px;font-weight:500;color:var(--text-muted);padding-left:10px;border-left:1px solid var(--border);line-height:1.2}
.desktop-nav{flex:1;min-width:0}
.tabs{display:flex;align-items:center;list-style:none;margin:0;padding:0;height:var(--header-height);gap:2px}
.tabs li{min-width:0}
.tabs a{position:relative;display:flex;align-items:center;height:var(--header-height);padding-inline:13px;font-size:14.5px;font-weight:600;color:var(--text-muted);text-decoration:none;white-space:nowrap;transition:color .2s}
.tabs a::after{content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:3px;border-radius:var(--r-tab-line);background:var(--text);transform:scaleX(0);transform-origin:50% 100%;transition:transform .28s ease}
.tabs a:hover{color:var(--text)}
.tabs a:hover::after{transform:scaleX(.45)}
.tabs a[aria-current="page"]{color:var(--text);font-weight:750}
.tabs a[aria-current="page"]::after{transform:scaleX(1)}
.tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.language{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:36px;width:auto;padding:0 12px;border:1px solid var(--border);border-radius:var(--r-pill);background:var(--bg-panel-2);color:var(--text);font:600 13px/1 var(--font-body);cursor:pointer;white-space:nowrap}
.lang svg{width:16px;height:16px}
.lang-name{white-space:nowrap}
.lang-caret{font-size:10px;color:var(--text-muted)}
.lang-panel{position:absolute;top:calc(100% + 12px);right:0;z-index:60;min-width:180px;padding:8px;border:1px solid var(--border);border-radius:var(--r-card);background:var(--bg-panel);box-shadow:var(--shadow-card)}
.lang-panel a{display:flex;align-items:center;min-height:44px;padding:8px 14px;border-radius:var(--r-xs);text-decoration:none}
.lang-panel a:hover,.lang-panel a[aria-current]{background:var(--bg-panel-2)}
.login{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px 0 16px;border-radius:var(--r-pill);border:1.5px solid var(--text);background:var(--bg-panel);color:var(--text);font-size:14px;font-weight:800;text-decoration:none;white-space:nowrap;box-shadow:var(--shadow-soft);transition:background-color .2s,color .2s}
.login svg{width:16px;height:16px}
.login:hover{background:var(--text);color:var(--bg-panel)}
.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-pill);background:var(--bg-panel);color:var(--text)}
.menu-line{display:block;width:20px;height:2px;background:currentColor}
.menu-toggle[aria-expanded="true"] .menu-line:first-child{transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] .menu-line:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] .menu-line:last-child{transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{position:fixed;inset-inline:0;top:var(--drawer-top,var(--header-height));z-index:35;height:calc(100dvh - var(--drawer-top,var(--header-height)));max-height:calc(100dvh - var(--drawer-top,var(--header-height)));overflow-y:auto;overscroll-behavior:contain;background:var(--bg-panel);padding:20px var(--gutter) 40px}
.mobile-drawer a{display:flex;align-items:center;width:100%;min-height:48px;padding:12px 16px;text-decoration:none;border-bottom:1px solid var(--border)}
.mobile-drawer a[aria-current]{background:var(--bg-panel-2);font-weight:800}
.drawer-languages{margin-top:24px;border-top:1px solid var(--border)}
.menu-veil{position:fixed;inset-inline:0;top:var(--drawer-top,var(--header-height));bottom:0;z-index:30;background:var(--veil);border:0;width:100%;padding:0}
html.nav-open{overflow:hidden}
.site-footer{padding-top:56px;padding-bottom:24px;background:var(--grain),var(--bg-panel-2);border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-grid>*{min-width:0}
.footer-brand p{max-width:320px;margin-top:20px;color:var(--text-muted);font-size:14px}
.footer-title{margin:0 0 14px;font-size:15px;font-weight:800}
.footer-links{display:grid;gap:4px;list-style:none;margin:0;padding:0}
.footer-links a{display:inline-flex;align-items:center;min-height:32px;font-size:14px;text-decoration:none;overflow-wrap:anywhere}
.footer-links a:hover{text-decoration:underline}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-top:36px;padding-top:24px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}
.legal-links{display:flex;flex-wrap:wrap;gap:16px}
.legal-links a{display:inline-flex;align-items:center;min-height:24px}
.prose{max-width:840px;overflow-wrap:anywhere}
.prose h2{margin-top:1.8em}
.prose h3{margin-top:1.5em}
.prose p,.prose li{line-height:1.85}
.prose a:not(.btn){color:var(--accent-dark)}
.prose img{border-radius:var(--r-sm)}
.reveal{transition:opacity .35s ease,transform .35s ease}
.reveal.pending{opacity:0;transform:translateY(16px)}
.reveal.shown{opacity:1;transform:none}
#server-status{position:relative;display:block;min-height:160px;max-width:100%;overflow:hidden;margin-top:24px;margin-bottom:32px}
#server-status+*{margin-top:32px}
@media(min-width:1101px) and (max-width:1300px){
  .top>.wrap{gap:18px}
  .tabs a{padding-inline:9px;font-size:14px}
  .tools{gap:8px}
}
@media(max-width:1100px){
  .desktop-nav{display:none}
  .tools{margin-left:auto}
  .menu-toggle{display:flex}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:768px){
  :root{--size-h1:clamp(28px,6vw,40px);--size-h2:clamp(26px,5vw,34px)}
  .section{padding-top:52px;padding-bottom:52px}
  .grid{grid-template-columns:1fr}
  .notice .wrap{gap:10px}
  .notice p{font-size:12px}
  .notice a{font-size:12px}
}
@media(max-width:640px){
  :root{--gutter:16px}
  .no-break{white-space:normal}
  .tilt,.tilt-card{transform:none}
  .decor-section{max-width:100%;overflow-x:clip}
  .panel,.card{padding:22px}
  .top>.wrap{gap:8px}
  .tools{gap:7px;margin-left:auto}
  .notice .wrap{padding-left:16px;padding-right:50px;flex-wrap:wrap;gap:0}
  .notice-x{right:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media(max-width:480px){
  .brand{gap:7px}
  .brand-word{font-size:18px}
  .logo{width:30px;height:30px}
  .lang{min-width:36px;padding-inline:9px}
  .lang-name,.lang-caret{display:none}
  .login{height:38px;padding-inline:13px}
  .login svg{display:none}
  .btn{font-size:15px;padding-inline:22px}
  .notice p{font-size:11px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal,.reveal.pending{opacity:1;transform:none}
}