/* =========================================================
   逸贝娱乐会馆 · /assets/site.css（全站共享外壳）
   1 Reset / 2 Tokens / 3 Base / 4 Type / 5 Layout
   6 Panel+Decor / 7 Media / 8 Button / 9 Tag / 10 Crumb
   11 Prose / 12 Tabs / 13 Header / 14 Footer / 15 A11y
   ========================================================= */

/* 1 ▸ Reset ------------------------------------------------ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,figcaption,blockquote,dl,dd,hr{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video,canvas{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit;letter-spacing:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
hr{border:0;height:1px;background:var(--edge)}

/* 2 ▸ Tokens ----------------------------------------------- */
:root{
  --deep-sea:#0A1622;
  --abyss:#060D15;
  --panel-indigo:#0F2233;
  --nacre:#F4EFE6;
  --paper:#E6DCC9;
  --ink:#241A14;
  --ink-soft:#5C4A3D;
  --ink-faint:#6E5A4B;
  --neon:#35E0D0;
  --coral:#FF6A3D;
  --press-red:#D8382B;
  --mist:#8FA6B2;
  --edge:#1E3A4C;

  --text:#E9F0F3;
  --text-soft:#B9C8D1;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --topbar-h:56px;
  --rail-w:88px;
  --cut:18px;
  --cut-sm:10px;
  --section-gap:44px;
  --ease:cubic-bezier(.22,.7,.3,1);

  --panel-clip:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
  --snip-clip:polygon(0 0,100% 0,100% calc(100% - var(--cut-sm)),calc(100% - var(--cut-sm)) 100%,0 100%);
}
@media (min-width:768px){:root{--section-gap:64px;--cut:22px}}
@media (min-width:1024px){:root{--topbar-h:64px;--section-gap:72px;--cut:24px;--cut-sm:12px;--rail-w:88px}}

/* 3 ▸ Base ------------------------------------------------- */
body{
  font-family:var(--font-body);
  font-size:clamp(16px,0.35vw + 15px,17.5px);
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  min-height:100vh;
  padding-top:var(--topbar-h);
  background-color:var(--deep-sea);
  background-image:
    radial-gradient(120% 70% at 82% -8%,rgba(53,224,208,.10) 0%,rgba(53,224,208,0) 62%),
    radial-gradient(90% 55% at 8% 104%,rgba(255,106,61,.08) 0%,rgba(255,106,61,0) 66%),
    linear-gradient(180deg,#0A1622 0%,#08131F 48%,#060D15 100%);
  background-repeat:no-repeat;
}
@media (min-width:1024px){body{padding-left:var(--rail-w)}}
#main-content{display:block;scroll-margin-top:calc(var(--topbar-h) + 16px)}

/* 4 ▸ Type ------------------------------------------------- */
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:900;line-height:1.15;letter-spacing:-.02em;color:#F7F3EC}
p{max-width:74ch}
strong{font-weight:700;color:#F7F3EC}
.display-1{font-size:clamp(34px,7.2vw,76px);line-height:1.06}
.display-2{font-size:clamp(27px,4.4vw,52px);line-height:1.1}
.display-3{font-size:clamp(21px,2.6vw,34px);line-height:1.2}
.lede{font-size:clamp(16px,1.1vw + 13px,19px);line-height:1.8;color:var(--text-soft);max-width:62ch}
.mono{font-family:var(--font-mono);font-size:.84em;letter-spacing:.06em;font-weight:500}
.label{display:inline-block;font-size:12.5px;font-weight:500;letter-spacing:.14em;color:var(--mist);text-transform:uppercase}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:700;letter-spacing:.18em;color:var(--neon)}
.eyebrow::before{content:"";flex:0 0 auto;width:26px;height:2px;background:var(--press-red);transform:skewX(-28deg)}
.section-head{margin-bottom:clamp(22px,3.4vw,44px)}
.stat{display:block}
.stat-value{display:block;font-family:var(--font-mono);font-size:clamp(23px,3vw,36px);line-height:1.2;letter-spacing:.02em;color:var(--neon)}
.stat-label{display:block;margin-top:6px;font-size:13px;letter-spacing:.08em;color:var(--mist)}

/* 5 ▸ Layout ----------------------------------------------- */
.container{width:100%;max-width:1200px;margin-inline:auto;padding-inline:20px}
.container--wide{max-width:1440px}
.container--narrow{max-width:820px}
@media (min-width:768px){.container{padding-inline:32px}}
@media (min-width:1024px){.container{max-width:1280px;padding-inline:44px}}
.section{padding-block:var(--section-gap)}
.grid{display:grid;gap:clamp(18px,2.6vw,34px)}
.grid--2,.grid--3{grid-template-columns:1fr}
@media (min-width:768px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (min-width:1024px){.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}}

/* 6 ▸ Panel + Decor ---------------------------------------- */
.panel{
  position:relative;
  background:var(--panel-indigo);
  border-top:1px solid var(--edge);
  border-right:1px solid var(--edge);
  clip-path:var(--panel-clip);
  padding:clamp(20px,3.2vw,44px);
}
.panel--cream{background:var(--nacre);color:var(--ink);border-color:rgba(36,26,20,.18)}
.panel--cream h2,.panel--cream h3{color:var(--ink)}
.panel--cream .lede,.panel--cream p{color:var(--ink-soft)}
.panel--abyss{background:var(--abyss)}
.panel--flush{padding:0}
.panel--shell::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background:repeating-conic-gradient(from 200deg at 88% 12%,rgba(53,224,208,.07) 0deg 1.5deg,transparent 1.5deg 8deg);
}
.slash{display:block;flex:0 0 auto;width:clamp(44px,7vw,96px);height:2px;background:var(--press-red);transform:skewX(-28deg);transform-origin:left center;transition:transform .24s var(--ease),background-color .24s var(--ease)}
.slash--neon{background:var(--neon)}
.slash--coral{background:var(--coral)}
.slash--mist{background:var(--edge)}
.panel:hover>.slash,.slash:hover{transform:skewX(-28deg) translateX(12px)}
.reflect{position:relative}
.reflect::after{
  content:"";position:absolute;left:0;right:0;top:100%;height:56px;pointer-events:none;opacity:.5;
  background:linear-gradient(to bottom,rgba(53,224,208,.16),rgba(53,224,208,0));
}

/* 7 ▸ Media frame ------------------------------------------ */
.media-frame{
  position:relative;overflow:hidden;aspect-ratio:4/3;
  background:linear-gradient(155deg,var(--panel-indigo),var(--abyss));
  border-top:1px solid var(--edge);
  border-right:1px solid var(--edge);
  clip-path:var(--panel-clip);
}
.media-frame > img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:46%;pointer-events:none;
  background:linear-gradient(to top,rgba(6,13,21,.78),rgba(6,13,21,0));
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--shell::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.55;
  background:repeating-conic-gradient(from 210deg at 78% 88%,rgba(244,239,230,.10) 0deg 1.2deg,transparent 1.2deg 7deg);
}
.media-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:14px 18px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--nacre);
}

/* 8 ▸ Button ----------------------------------------------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  min-height:44px;padding:10px 20px;
  font-family:var(--font-body);font-size:15px;font-weight:700;letter-spacing:.02em;
  color:var(--nacre);background:rgba(53,224,208,.06);
  border-top:1px solid var(--edge);border-left:1px solid var(--edge);
  clip-path:var(--snip-clip);
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn:hover{background:rgba(53,224,208,.14);color:#FFFFFF;border-color:var(--neon)}
.btn--coral{background:var(--coral);color:#1A0C06;border-color:var(--coral)}
.btn--coral:hover{background:#FF855F;color:#1A0C06;border-color:#FF855F}
.btn--neon{background:var(--neon);color:#04161A;border-color:var(--neon)}
.btn--neon:hover{background:#6BEDE0;color:#04161A;border-color:#6BEDE0}
.btn--cream{background:var(--nacre);color:var(--ink);border-color:var(--nacre)}
.btn--cream:hover{background:#FFFFFF;color:var(--ink);border-color:#FFFFFF}
.btn--ghost{background:transparent;color:var(--nacre);border-top-color:var(--edge);border-left-color:var(--edge)}
.btn--ghost:hover{background:rgba(244,239,230,.08);border-color:var(--mist)}

/* 9 ▸ Exhibit tag ------------------------------------------ */
.exhibit-tag{
  display:inline-flex;align-items:center;gap:10px;
  min-height:32px;padding:6px 14px;
  background:var(--nacre);color:var(--ink);
  font-size:13px;font-weight:500;letter-spacing:.14em;
  clip-path:var(--snip-clip);
}
.exhibit-tag .mono,.exhibit-tag [class*="mono"]{color:var(--press-red)}
.exhibit-tag--dark{background:var(--abyss);color:var(--nacre);border:1px solid var(--edge)}

/* 10 ▸ Breadcrumb ------------------------------------------ */
.breadcrumb{margin-block:22px 6px}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--mist)}
.breadcrumb-list li+li::before{content:"/";margin-right:8px;color:var(--press-red)}
.breadcrumb-list a:hover{color:var(--neon)}
.breadcrumb-list [aria-current="page"]{color:var(--nacre)}

/* 11 ▸ Prose ----------------------------------------------- */
.prose{max-width:72ch;color:#D9E3E8}
.prose p{margin-bottom:1.2em}
.prose h2{font-size:clamp(21px,2.6vw,32px);margin:2.1em 0 .7em}
.prose h3{font-size:clamp(17px,1.8vw,22px);margin:1.8em 0 .5em}
.prose a{color:var(--neon);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--coral)}
.prose ul,.prose ol{margin:0 0 1.2em}
.prose li{position:relative;padding-left:1.5em;margin-bottom:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:10px;height:2px;background:var(--coral);transform:skewX(-28deg)}
.prose code{font-family:var(--font-mono);font-size:.86em;letter-spacing:.04em;padding:.1em .42em;background:rgba(53,224,208,.1);color:var(--neon)}
.prose blockquote{margin:1.6em 0;padding-left:1.2em;border-left:2px solid var(--press-red);color:var(--text-soft)}
.prose .panel{color:var(--text)}
.prose .panel--cream{color:var(--ink)}

/* 12 ▸ Tabs (segmented switch) ----------------------------- */
.tabs{display:block}
.tablist{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:14px;border-bottom:1px solid var(--edge)}
.tab{
  min-height:44px;padding:10px 18px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  color:var(--mist);background:transparent;
  clip-path:var(--snip-clip);
  transition:color .24s var(--ease),background-color .24s var(--ease);
}
.tab:hover{color:var(--nacre);background:rgba(53,224,208,.08)}
.tab[aria-selected="true"]{background:var(--neon);color:#04161A}
.tabpanel{padding-top:clamp(20px,3vw,34px)}
.tabpanel[hidden]{display:none !important}

/* 13 ▸ Header ---------------------------------------------- */
.site-header{position:relative;z-index:70}

.skip-link{
  position:fixed;top:-90px;left:14px;z-index:96;
  display:inline-flex;align-items:center;min-height:44px;padding:12px 20px;
  background:var(--neon);color:#04161A;font-weight:700;letter-spacing:.04em;
  clip-path:var(--snip-clip);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:14px}

.topbar{
  position:fixed;top:0;left:0;right:0;z-index:74;
  display:flex;align-items:center;gap:10px;
  height:var(--topbar-h);padding-inline:16px;
  background:rgba(6,13,21,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--edge);
}
@media (min-width:1024px){.topbar{gap:20px;padding-inline:28px}}

.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding-block:4px;flex:0 1 auto}
.brand::before{
  content:"";flex:0 0 auto;width:13px;height:13px;
  background:linear-gradient(135deg,var(--neon),var(--coral));
  clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);
}
.brand-name{font-family:var(--font-display);font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--nacre);white-space:nowrap}
.brand-sub{font-size:10.5px;letter-spacing:.26em;color:var(--neon);white-space:nowrap}
.brand:hover .brand-name{color:var(--neon)}
@media (max-width:480px){.brand-sub{display:none}.brand-name{font-size:15px}}

.topbar-status{display:none;margin-left:auto;font-size:11px;letter-spacing:.08em;color:var(--mist);white-space:nowrap}
@media (min-width:1024px){.topbar-status{display:block}}

.topbar-cta{margin-left:auto;min-height:40px;padding:9px 14px;font-size:14px}
@media (min-width:1024px){.topbar-cta{min-height:44px;padding:10px 20px;font-size:15px}}

.nav-toggle{
  display:inline-flex;align-items:center;gap:8px;
  min-width:44px;min-height:44px;padding:0 12px;
  color:var(--nacre);background:rgba(53,224,208,.06);
  border-top:1px solid var(--edge);border-left:1px solid var(--edge);
  clip-path:var(--snip-clip);
  transition:background-color .24s var(--ease),color .24s var(--ease);
}
.nav-toggle:hover{background:rgba(53,224,208,.14)}
.nav-toggle-bars{position:relative;display:block;width:18px;height:12px}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
  transition:transform .24s var(--ease),top .24s var(--ease),bottom .24s var(--ease);
}
.nav-toggle-bars::before{top:1px}
.nav-toggle-bars::after{bottom:1px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{bottom:5px;transform:rotate(-45deg)}
.nav-toggle-text{font-size:13px;font-weight:600;letter-spacing:.06em}
@media (min-width:1024px){.nav-toggle{display:none}}

.nav-scrim{
  position:fixed;inset:0;z-index:66;
  background:rgba(6,13,21,.72);
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
  opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease);
}
.nav-scrim[data-open="true"]{opacity:1;pointer-events:auto}
@media (min-width:1024px){.nav-scrim{display:none}}

.rail{
  position:fixed;top:var(--topbar-h);bottom:0;left:0;z-index:68;
  width:min(86vw,320px);
  display:flex;flex-direction:column;
  padding:24px 20px 28px;
  background:var(--abyss);
  border-right:1px solid var(--edge);
  overflow-y:auto;overscroll-behavior:contain;
  transform:translateX(-102%);visibility:hidden;
  transition:transform .3s var(--ease),visibility 0s linear .32s;
}
.rail[data-open="true"]{transform:none;visibility:visible;transition:transform .3s var(--ease),visibility 0s linear 0s}
.rail-label{display:block;padding-bottom:14px;font-size:11px;letter-spacing:.24em;color:var(--mist)}
.rail-list{display:flex;flex-direction:column;gap:4px;width:100%}
.rail-link{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:48px;padding:10px 14px;
  font-size:15px;color:var(--mist);
  transition:color .24s var(--ease),background-color .24s var(--ease);
}
.rail-link:hover{color:var(--nacre);background:rgba(53,224,208,.07)}
.rail-idx{font-size:11px;letter-spacing:.08em;color:var(--press-red)}
.rail-name{letter-spacing:.04em}
.rail-link[aria-current="page"]{color:var(--neon);background:rgba(53,224,208,.06)}
.rail-link[aria-current="page"]::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--neon);
}
.rail-link[aria-current="page"] .rail-idx{color:var(--coral)}
.rail-note{margin-top:auto;padding-top:22px;font-size:10px;letter-spacing:.14em;color:var(--edge)}

@media (min-width:1024px){
  .rail{
    width:var(--rail-w);
    padding:20px 0 24px;
    align-items:stretch;
    background:rgba(10,22,34,.92);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    transform:none;visibility:visible;transition:none;
  }
  .rail::after{
    content:"";position:absolute;top:0;bottom:0;right:0;width:1px;pointer-events:none;
    background:linear-gradient(180deg,rgba(53,224,208,0),rgba(53,224,208,.4),rgba(53,224,208,0));
  }
  .rail-label{padding:0 0 16px;text-align:center;font-size:10px;letter-spacing:.24em}
  .rail-list{gap:2px}
  .rail-link{
    flex-direction:column;align-items:center;justify-content:flex-start;
    gap:6px;min-height:0;padding:10px 4px;
    font-size:12.5px;
  }
  .rail-name{writing-mode:vertical-rl;text-orientation:upright;letter-spacing:.14em;line-height:1.05}
  .rail-idx{font-size:10px;letter-spacing:.08em}
  .rail-link[aria-current="page"]::before{top:10px;bottom:10px;width:3px}
  .rail-note{text-align:center;font-size:9.5px;letter-spacing:.08em;padding-top:18px}
}

.scroll-progress{
  position:fixed;left:0;right:0;bottom:0;height:2px;z-index:80;
  background:linear-gradient(90deg,var(--neon),var(--coral));
  transform:scaleX(0);transform-origin:0 50%;
  will-change:transform;pointer-events:none;
}

/* 14 ▸ Footer ---------------------------------------------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,120px);
  padding-block:56px 28px;
  background:var(--nacre);
  color:var(--ink);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;
  background:linear-gradient(90deg,
    var(--press-red) 0 22%,
    var(--coral) 22% 30%,
    var(--neon) 30% 35%,
    rgba(36,26,20,.14) 35% 100%);
}
.footer-inner{position:relative}
.footer-head{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 20px;
  padding-bottom:26px;border-bottom:1px solid rgba(36,26,20,.18);
}
.footer-wordmark{font-family:var(--font-display);font-size:clamp(26px,4.4vw,44px);font-weight:900;line-height:1.1;letter-spacing:-.02em;color:var(--ink)}
.footer-tag{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--ink-soft)}
.footer-columns{display:grid;grid-template-columns:1fr;gap:28px;padding-block:36px}
@media (min-width:640px){.footer-columns{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-columns{grid-template-columns:1.1fr 1fr 1.25fr 1fr;gap:36px}}
.footer-col{min-width:0}
.footer-col-title{margin-bottom:14px;font-family:var(--font-body);font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--press-red)}
.footer-list li{position:relative;padding-left:15px;font-size:14.5px;line-height:1.9;color:var(--ink-soft)}
.footer-list li::before{content:"";position:absolute;left:0;top:.88em;width:8px;height:2px;background:rgba(36,26,20,.32);transform:skewX(-28deg)}
.footer-list a{
  color:var(--ink);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
  text-decoration-color:rgba(36,26,20,.28);
  transition:color .24s var(--ease),text-decoration-color .24s var(--ease);
}
.footer-list a:hover{color:var(--press-red);text-decoration-color:var(--press-red)}
.footer-baseline{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px 28px;
  padding-top:22px;border-top:1px solid rgba(36,26,20,.18);
}
.footer-legal,.footer-copy{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.05em;color:var(--ink-faint)}
.footer-note{font-size:13px;color:var(--ink-faint)}

/* 15 ▸ A11y / Motion --------------------------------------- */
:focus-visible{outline:2px solid var(--neon);outline-offset:2px}
.btn:focus-visible,.exhibit-tag:focus-visible,.tab:focus-visible,.nav-toggle:focus-visible,
.rail-link:focus-visible,.skip-link:focus-visible,.brand:focus-visible{outline-offset:-3px}
.visually-hidden{
  position:absolute !important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

[data-reveal]{transition:opacity .42s var(--ease),transform .42s var(--ease)}
[data-reveal].has-reveal-init{opacity:0;transform:translateY(24px);transition:none}
[data-reveal].is-revealed{opacity:1;transform:none}

body.is-nav-open{overflow:hidden}
@media (min-width:1024px){body.is-nav-open{overflow:auto}}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.12s !important;
  }
  [data-reveal].has-reveal-init{opacity:1;transform:none}
  [data-reveal].is-revealed{transform:none}
  .slash:hover{transform:skewX(-28deg)}
}