:root{
  color-scheme:light;
  --bg:#FAF7F6;
  --panel:#FFFFFF;
  --panel-2:#FCEBEC;
  --line:#EADFDF;
  --line-strong:#DCCBCD;
  --accent:#F25A5F;
  --wine:#5A0A2C;
  --ink:#1F1418;
  --muted:#6E5F64;
  --success:#1E9E6A;
  --warn:#D98A12;
  --error:#C8283C;
  --flag-red:#C8283C;
  --flag-navy:#22397A;
  --clear:transparent;
  --ink-70:rgba(31,20,24,.70);
  --ink-45:rgba(31,20,24,.45);
  --accent-05:rgba(242,90,95,.05);
  --accent-06:rgba(242,90,95,.06);
  --accent-14:rgba(242,90,95,.14);
  --accent-30:rgba(242,90,95,.30);
  --wine-08:rgba(90,10,44,.08);
  --wine-12:rgba(90,10,44,.12);
  --wine-20:rgba(90,10,44,.20);
  --white-90:rgba(255,255,255,.90);
  --white-70:rgba(255,255,255,.70);
  --white-60:rgba(255,255,255,.60);
  --white-35:rgba(255,255,255,.35);
  --white-20:rgba(255,255,255,.20);
  --font-display:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --weight-normal:400;
  --weight-medium:500;
  --weight-semibold:600;
  --weight-bold:700;
  --weight-heavy:800;
  --weight-display:900;
  --r-pill:999px;
  --r-card:28px;
  --r-panel:20px;
  --r-standard:24px;
  --r-tube:18px;
  --r-small:10px;
  --r-focus:6px;
  --r-detail:4px;
  --r-round:50%;
  --lift:0 34px 64px -26px var(--wine-12),0 12px 26px -16px var(--wine-12);
  --lift-sm:0 14px 26px -14px var(--wine-20),0 2px 6px -2px var(--wine-08);
  --gutter:32px;
  --content-width:1240px;
  --header-height:64px;
  --notice-height:44px;
  --toc-offset:16px;
  --anchor-offset:96px;
  --ease:cubic-bezier(.2,.65,.3,1);
  --fast:.2s;
  --reveal-duration:.35s;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px;scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);font-weight:var(--weight-normal);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.5}
body:has(.notice){padding-bottom:calc(var(--notice-height) + env(safe-area-inset-bottom,0px))}
html.nav-open{overflow:hidden}
[hidden]{display:none!important}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer;color:inherit}
button,select{min-height:24px}
button{border:0;background:var(--clear)}
img{display:block;max-width:100%;height:auto}
svg{flex-shrink:0;vertical-align:middle}
ul{padding-left:1.4em}
h1,h2,h3{font-family:var(--font-display);text-wrap:balance;overflow-wrap:break-word}
h1{font-size:clamp(52px,5vw,68px);font-weight:var(--weight-display);line-height:1.12;letter-spacing:-.02em}
h2{font-size:clamp(26px,3vw,40px);font-weight:var(--weight-heavy);line-height:1.25;letter-spacing:-.02em;margin:0 0 24px}
h3{font-size:22px;font-weight:var(--weight-bold);line-height:1.35}
p{margin:0 0 16px}
strong{font-weight:var(--weight-bold)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:var(--r-focus)}
code{font-family:var(--font-mono);font-size:.9em;overflow-wrap:anywhere;word-break:break-word}
pre{max-width:100%;overflow-x:auto;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-small);padding:20px}
pre code{overflow-wrap:normal;word-break:normal;white-space:pre}
table{border-collapse:collapse}
th,td{word-break:keep-all}
input,select,textarea{max-width:100%;border:1px solid var(--line-strong);border-radius:var(--r-small);background:var(--panel);color:var(--ink);padding:10px 14px}
.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}
.skip{position:absolute;left:16px;top:-64px;z-index:80;background:var(--panel);padding:8px 14px;border-radius:var(--r-pill);border:1px solid var(--line)}
.skip:focus{top:12px}
.no-break{white-space:nowrap}
.wrap{width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-top:72px;padding-bottom:72px}
.section-head{max-width:780px;margin-bottom:32px}
.section-head p,.muted{color:var(--muted)}
.prose{max-width:820px;overflow-wrap:break-word}
.prose p,.prose li{line-height:1.85}
.prose h2{margin-top:48px}
.prose h3{margin-top:32px}
.prose a:not(.btn){text-decoration:underline;text-underline-offset:4px}
.grid{display:grid;gap:24px}
.grid-three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-five{grid-template-columns:repeat(5,minmax(0,1fr))}
.grid>*,.rig-main>*,.topbar-inner>*,.footer-grid>*{min-width:0}
.card,.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-standard);padding:28px;box-shadow:inset 0 1px 0 var(--white-90),var(--lift-sm)}
.panel{background:var(--panel-2)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:12px 28px;border:1px solid var(--clear);border-radius:var(--r-pill);font-size:16px;font-weight:var(--weight-bold);letter-spacing:.01em;line-height:24px;white-space:nowrap;flex-shrink:0;transition:transform var(--fast),box-shadow var(--fast)}
.btn-main,.btn-primary{background:var(--wine);color:var(--panel);box-shadow:inset 0 1px 0 var(--white-20),0 14px 26px -14px var(--wine-20)}
.btn-main:hover,.btn-primary:hover,.btn.is-hover{transform:translateY(-1px);box-shadow:inset 0 1px 0 var(--white-20),0 18px 30px -14px var(--wine-20)}
.btn-ghost,.btn-secondary{background:var(--clear);color:var(--wine);border:1.5px solid var(--wine)}
.btn-ghost:hover,.btn-secondary:hover{transform:translateY(-1px)}
.btn:active,.btn.is-active{transform:translateY(1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none}
.btn.is-focus{outline:2px solid var(--accent);outline-offset:3px}
.btn-small{min-height:40px;font-size:14px;padding:8px 18px;line-height:22px}
.cta-pair{display:flex;justify-content:center;gap:12px;margin:0 0 20px}
.topbar{position:relative;z-index:60}
.topbar-inner{height:var(--header-height);display:flex;align-items:center;gap:24px;flex-wrap:nowrap}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;min-height:32px}
.brand img{width:32px;height:32px;flex-shrink:0}
.brand-word{font-family:var(--font-display);font-weight:var(--weight-heavy);font-size:19px;letter-spacing:-.02em;color:var(--ink);white-space:nowrap}
.mainnav{flex:1;min-width:0}
.mainnav ul{display:flex;align-items:center;justify-content:center;list-style:none;margin:0;padding:0;gap:0}
.mainnav li{display:flex;align-items:center;white-space:nowrap}
.mainnav li+li::before{content:"·";margin:0 12px;color:var(--ink-45);font-weight:var(--weight-bold)}
.mainnav a{display:inline-flex;align-items:center;min-height:32px;font-size:14px;font-weight:var(--weight-medium);color:var(--ink-70);padding:6px 2px;transition:color var(--fast)}
.mainnav a:hover,.mainnav a[aria-current="page"]{color:var(--ink);font-weight:var(--weight-bold)}
.tools{display:flex;align-items:center;gap:14px;flex-shrink:0}
.lang-box{position:relative}
.lang{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--clear);border:0;min-width:44px;min-height:36px;width:auto;padding:6px 4px;font-size:14px;color:var(--muted)}
.lang-text{white-space:nowrap}
.lang svg{color:var(--ink-45)}
.lang-panel{position:absolute;right:0;top:calc(100% + 8px);z-index:75;min-width:180px;padding:8px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-panel);box-shadow:var(--lift-sm)}
.lang-panel a{display:flex;align-items:center;min-height:44px;padding:10px 14px;border-radius:var(--r-small)}
.lang-panel a:hover,.lang-panel a[aria-current="true"]{background:var(--panel-2)}
.login{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 18px;border-radius:var(--r-pill);background:var(--panel);border:1px solid var(--line-strong);font-size:14px;font-weight:var(--weight-bold);color:var(--ink);box-shadow:var(--lift-sm);transition:transform var(--fast);white-space:nowrap}
.login:hover{transform:translateY(-1px)}
.menu-toggle{display:none;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--panel)}
.menu-toggle svg{width:20px;height:20px}
.mobile-drawer{display:none}
.nav-veil{display:none}
.site-footer{background:var(--panel);border-top:1px solid var(--line);padding-top:56px;padding-bottom:28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footer-brand p{max-width:360px;margin-top:18px;color:var(--muted);font-size:14px;line-height:1.8}
.footer-heading{font-size:15px;font-weight:var(--weight-heavy);margin:0 0 12px}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none;padding:0;margin:0}
.footer-links a,.footer-languages a,.footer-bottom a{display:inline-flex;align-items:center;min-height:28px;font-size:14px}
.footer-links a:hover,.footer-bottom a:hover{text-decoration:underline;text-underline-offset:4px}
.footer-languages{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.footer-languages a[aria-current="true"]{font-weight:var(--weight-bold)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:24px;color:var(--muted);font-size:13px}
.footer-legal{display:flex;gap:20px;flex-wrap:wrap}
.notice{position:fixed;left:0;right:0;bottom:0;z-index:65;background:var(--wine);color:var(--panel);padding-bottom:env(safe-area-inset-bottom,0px)}
.notice-inner{height:var(--notice-height);display:flex;align-items:center;justify-content:space-between;gap:16px}
.notice-text{font-size:14px;font-weight:var(--weight-medium)}
.notice-end{display:flex;align-items:center;gap:22px}
.notice-login{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:var(--weight-bold);min-height:28px;text-decoration:underline;text-underline-offset:4px}
.notice-close{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--r-round);cursor:pointer;color:var(--panel);padding:0}
.notice-close:hover{background:var(--white-20)}
#notice-x:checked+.notice{display:none}
#notice-x:focus-visible+.notice .notice-close{outline:2px solid var(--panel);outline-offset:2px}
.reveal{transition:opacity var(--reveal-duration) var(--ease),transform var(--reveal-duration) 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%;overflow:hidden;margin-top:24px;margin-bottom:32px}
#server-status+*{margin-top:32px}
#server-status>*{min-width:0;max-width:100%}
@media(max-width:1100px){
  .mainnav li+li::before{margin-inline:8px}
  .topbar-inner{gap:16px}
  .tools{gap:10px}
}
@media(max-width:1000px){
  .mainnav{display:none}
  .tools{margin-left:auto}
  .menu-toggle{display:inline-flex}
  .mobile-drawer{position:fixed;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;background:var(--panel);z-index:55;padding:16px var(--gutter) 64px}
  .mobile-drawer:not([hidden]){display:block}
  .mobile-drawer ul{list-style:none;padding:0;margin:0}
  .mobile-drawer a{display:flex;align-items:center;width:100%;min-height:44px;padding:12px 14px;border-bottom:1px solid var(--line);font-size:16px}
  .mobile-drawer a[aria-current]{background:var(--panel-2);font-weight:var(--weight-bold)}
  .mobile-drawer .drawer-languages{margin-top:24px;border-top:1px solid var(--line)}
  .nav-veil{position:fixed;inset:var(--header-height) 0 0;z-index:50;background:var(--wine-20)}
  .nav-veil:not([hidden]){display:block}
  .grid-five{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:768px){
  :root{--gutter:20px}
  h1{font-size:38px}
  h2{font-size:28px}
  .section{padding-top:48px;padding-bottom:48px}
  .grid-three{grid-template-columns:1fr}
  .grid-five{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .btn{min-height:48px;padding:11px 22px;font-size:15px}
  .card,.panel{padding:22px}
}
@media(max-width:640px){
  .no-break{white-space:normal}
  .lang-text{display:none}
  .tilt,.float-shield,.float-ticket,.stamp-forever{transform:none}
  .screen,.decorated-section{max-width:100%;overflow-x:clip}
}
@media(max-width:380px){
  :root{--gutter:16px}
  .topbar-inner{gap:8px}
  .brand{gap:7px}
  .brand-word{font-size:17px}
  .brand img{width:28px;height:28px}
  .tools{gap:5px}
  .login{padding-inline:12px}
  .cta-pair{gap:8px}
  .btn{padding-inline:18px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal,.reveal.pending{opacity:1;transform:none}
}