/* ============================================================
   亿游互娱 · /assets/site.css
   深海控制台 · 展览画册式共享层
   ============================================================ */

:root{
  --c-deep:#050F1B;
  --c-panel:#0B2239;
  --c-panel-2:#071626;
  --c-line:#16405F;
  --c-cyan:#21E6C1;
  --c-cyan-dark:#0E9E8C;
  --c-orange:#FF8A3D;
  --c-orange-soft:#FFC46B;
  --c-text:#E9F5FA;
  --c-muted:#9CB6C6;
  --c-violet:#A78BFA;
  --c-coral:#FF6B6B;

  --font-display:"Space Grotesk","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-body:Inter,"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --gut:clamp(18px,4vw,64px);
  --shell:min(1480px,calc(100% - var(--gut) * 2));
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --gap-airy:clamp(64px,10vw,128px);
  --gap-tight:clamp(14px,2vw,24px);
  --ease:cubic-bezier(.22,.7,.3,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:where(button,a,input,select,textarea,summary,[tabindex]):focus-visible{
  outline:2px solid var(--c-cyan);
  outline-offset:3px;
  border-radius:8px;
}

/* ---------- base ---------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:clamp(16px,1.05vw,17.5px);
  line-height:1.75;
  color:var(--c-text);
  background:
    radial-gradient(1200px 700px at 88% -12%,rgba(33,230,193,.16),transparent 62%),
    radial-gradient(900px 620px at 2% 10%,rgba(167,139,250,.11),transparent 60%),
    radial-gradient(1100px 820px at 50% 118%,rgba(255,138,61,.10),transparent 66%),
    linear-gradient(180deg,#050F1B 0%,#061421 45%,#050F1B 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--c-cyan);color:#050F1B}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.08;text-wrap:balance}
h1{font-size:clamp(38px,6.4vw,72px)}
h2{font-size:clamp(26px,3.8vw,48px)}
h3{font-size:clamp(20px,2.2vw,32px);line-height:1.2}
h4{font-size:clamp(17px,1.4vw,21px);line-height:1.3;letter-spacing:-.01em}
p{text-wrap:pretty}
strong{font-weight:700}
code,kbd,samp{font-family:var(--font-mono);font-size:.9em;color:var(--c-orange-soft)}

#main-content{display:block;outline:none}
.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}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:-90px;left:16px;z-index:400;
  padding:11px 20px;border-radius:0 0 14px 14px;
  background:var(--c-cyan);color:#050F1B;
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.04em;
  transition:top .22s var(--ease);
}
.skip-link:focus{top:0}

/* ---------- header : command bar ---------- */
.cmd-bar{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(5,15,27,.96),rgba(5,15,27,.80));
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid rgba(22,64,95,.75);
}
.cmd-bar__inner{
  width:var(--shell);margin-inline:auto;
  display:flex;align-items:center;gap:clamp(14px,2.2vw,36px);
  min-height:66px;padding-block:10px;
}
.cmd-bar__brand{flex:0 1 auto;min-width:0}

.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand__mark{
  width:26px;height:26px;flex:0 0 26px;
  background:conic-gradient(from 140deg,#21E6C1,#0E9E8C 42%,#FF8A3D 78%,#21E6C1);
  clip-path:polygon(50% 0,100% 26%,100% 74%,50% 100%,0 74%,0 26%);
  box-shadow:0 0 22px rgba(33,230,193,.45);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{
  font-family:var(--font-display);font-weight:800;font-size:18px;
  letter-spacing:-.01em;line-height:1.15;white-space:nowrap;
}
.brand__meta{
  display:block;margin-top:2px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;
  color:var(--c-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

.cmd-nav{flex:1 1 auto;min-width:0}
.cmd-nav__list{display:flex;align-items:center;justify-content:center;gap:2px}
.cmd-nav__link{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 12px;border-radius:999px;
  font-size:14px;font-weight:500;white-space:nowrap;
  color:var(--c-muted);border:1px solid transparent;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.cmd-nav__link .dot{
  width:6px;height:6px;border-radius:50%;flex:0 0 6px;
  background:var(--c-line);
  transition:background .18s var(--ease),box-shadow .18s var(--ease);
}
.cmd-nav__link:hover{color:var(--c-text);background:rgba(33,230,193,.07);border-color:rgba(33,230,193,.26)}
.cmd-nav__link:hover .dot{background:var(--c-cyan-dark)}
.cmd-nav__link[aria-current="page"]{
  background:var(--c-cyan);border-color:var(--c-cyan);
  color:#050F1B;font-weight:700;
}
.cmd-nav__link[aria-current="page"] .dot{background:#050F1B;box-shadow:none}

.cmd-bar__tools{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.cmd-chip{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  padding:6px 10px;border-radius:9px;white-space:nowrap;
  color:var(--c-muted);
  background:rgba(11,34,57,.62);
  border:1px solid rgba(22,64,95,.9);
}
.cmd-chip--version{color:var(--c-orange-soft);border-color:rgba(255,138,61,.45);background:rgba(255,138,61,.08)}
.cmd-chip--sync{color:var(--c-cyan);border-color:rgba(33,230,193,.36);background:rgba(33,230,193,.08)}
.cmd-chip--sync::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--c-cyan);box-shadow:0 0 8px var(--c-cyan);
  margin-right:7px;vertical-align:1px;
}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 13px;border-radius:11px;
  border:1px solid var(--c-line);color:var(--c-text);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-cyan-dark);background:rgba(33,230,193,.08)}
.nav-toggle__bars{display:grid;gap:3px}
.nav-toggle__bars i{
  display:block;width:16px;height:1.5px;border-radius:2px;background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}

.cmd-bar__rule{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(33,230,193,.55) 22%,rgba(255,138,61,.45) 78%,transparent);
}

@keyframes navDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* ---------- scroll progress ---------- */
.scroll-rail{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:200;
  background:rgba(22,64,95,.45);pointer-events:none;
}
.scroll-rail__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--c-cyan-dark),var(--c-cyan) 62%,var(--c-orange));
  box-shadow:0 0 12px rgba(33,230,193,.55);
  transition:width .12s linear;
}

/* ---------- layout ---------- */
.shell{width:var(--shell);margin-inline:auto}
.section{width:var(--shell);margin-inline:auto}
.section + .section{margin-top:var(--gap-airy)}
.section--tight + .section--tight{margin-top:clamp(32px,5vw,60px)}
.rule{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--c-line) 16%,var(--c-line) 84%,transparent)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--c-cyan);
}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor;opacity:.72}
.lede{
  font-size:clamp(17px,1.5vw,21px);line-height:1.7;
  color:#C6DCE8;max-width:62ch;
}
.muted{color:var(--c-muted)}
.index-num{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--c-orange-soft)}

.grid{display:grid;gap:var(--gap-tight)}
.grid--split{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid--split-alt{grid-template-columns:minmax(0,8fr) minmax(0,4fr)}
.grid--duo{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--trio{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--quad{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--wide{gap:clamp(20px,3vw,40px)}

/* ---------- panels & atoms ---------- */
.panel{
  position:relative;
  background:linear-gradient(158deg,rgba(11,34,57,.94),rgba(7,22,38,.94));
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:clamp(20px,2.6vw,34px);
}
.panel--glow{
  box-shadow:inset 0 0 0 1px rgba(33,230,193,.12),0 0 46px -24px rgba(33,230,193,.6);
}
.panel__head{
  display:flex;align-items:baseline;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-bottom:14px;
}
.panel__title{font-family:var(--font-display);font-weight:700;font-size:clamp(17px,1.5vw,21px);letter-spacing:-.01em}

.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(28px,3.4vw,44px);line-height:1;
  color:var(--c-cyan);letter-spacing:-.02em;
}
.stat__label{font-size:13px;color:var(--c-muted);letter-spacing:.02em}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  border:1px solid var(--c-line);color:var(--c-muted);
  background:rgba(11,34,57,.6);white-space:nowrap;
}
.tag--cyan{color:var(--c-cyan);border-color:rgba(33,230,193,.45);background:rgba(33,230,193,.09)}
.tag--orange{color:var(--c-orange-soft);border-color:rgba(255,138,61,.48);background:rgba(255,138,61,.1)}
.tag--violet{color:var(--c-violet);border-color:rgba(167,139,250,.45);background:rgba(167,139,250,.1)}

.status-dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--c-cyan);box-shadow:0 0 9px rgba(33,230,193,.9);
}
.status-dot--warn{background:var(--c-coral);box-shadow:0 0 9px rgba(255,107,107,.85)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn--primary{background:var(--c-orange);color:#050F1B}
.btn--primary:hover{background:var(--c-orange-soft);transform:translateY(-2px)}
.btn--ghost{border-color:rgba(33,230,193,.5);color:var(--c-cyan)}
.btn--ghost:hover{background:rgba(33,230,193,.12);transform:translateY(-2px)}
.btn--quiet{border-color:var(--c-line);color:var(--c-muted)}
.btn--quiet:hover{color:var(--c-text);border-color:var(--c-cyan-dark)}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;
  color:var(--c-muted);
}
.crumb a{transition:color .18s var(--ease)}
.crumb a:hover{color:var(--c-cyan)}
.crumb__sep{opacity:.5}
.crumb [aria-current="page"]{color:var(--c-text)}

/* ---------- media ---------- */
.media{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  background:linear-gradient(150deg,#0B2239,#071626 58%,#0A2033);
}
.media::after{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:
    radial-gradient(120% 90% at 84% 6%,rgba(33,230,193,.20),transparent 58%),
    radial-gradient(96% 82% at 6% 98%,rgba(255,138,61,.16),transparent 62%);
  mix-blend-mode:screen;
}
.media__img{width:100%;height:100%;object-fit:cover;display:block;position:relative;z-index:1}
.media__ph{
  position:absolute;inset:0;z-index:1;
  display:grid;place-items:center;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--c-muted);
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--3x4{aspect-ratio:3/4}

/* ---------- filter ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.filter{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--c-line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--c-muted);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.filter::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:currentColor;opacity:.5;
  transition:opacity .18s var(--ease),box-shadow .18s var(--ease);
}
.filter:hover{color:var(--c-text);border-color:var(--c-cyan-dark)}
.filter[aria-pressed="true"]{
  background:rgba(33,230,193,.14);
  border-color:var(--c-cyan);
  color:var(--c-cyan);
}
.filter[aria-pressed="true"]::before{opacity:1;box-shadow:0 0 8px var(--c-cyan)}
.filter__count{margin-left:auto;font-family:var(--font-mono);font-size:12px;color:var(--c-muted);letter-spacing:.05em}
[data-filter-item][hidden]{display:none!important}

/* ---------- reveal ---------- */
[data-reveal]{transition:opacity .55s var(--ease),transform .55s var(--ease)}
html.has-js [data-reveal]:not(.is-in){opacity:0;transform:translateY(20px)}

/* ---------- footer ---------- */
.site-foot{
  position:relative;overflow:hidden;
  margin-top:clamp(80px,12vw,160px);
  border-top:1px solid var(--c-line);
  background:linear-gradient(180deg,rgba(11,34,57,.58),rgba(5,15,27,.98));
}
.site-foot::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(760px 320px at 86% 0%,rgba(33,230,193,.11),transparent 70%);
}
.site-foot__inner{
  position:relative;
  width:var(--shell);margin-inline:auto;
  padding:clamp(48px,7vw,88px) 0 clamp(34px,5vw,58px);
  display:grid;gap:clamp(36px,5vw,72px);
  grid-template-columns:minmax(220px,1fr) minmax(0,2fr);
}
.site-foot__lockup{
  display:flex;align-items:center;gap:11px;
  font-family:var(--font-display);font-weight:800;font-size:18px;letter-spacing:-.01em;
}
.site-foot__tagline{
  margin-top:12px;font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.1em;color:var(--c-muted);
}
.site-foot__pulse{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;
}
.site-foot__pulse li{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:9px;
  font-size:12px;color:var(--c-muted);
  border:1px solid rgba(22,64,95,.9);
  background:rgba(11,34,57,.55);
}
.site-foot__pulse-num{
  font-family:var(--font-mono);font-weight:700;font-size:13px;color:var(--c-cyan);
}
.site-foot__cols{
  display:grid;gap:clamp(24px,3vw,40px);
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.site-foot__col-title{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--c-orange-soft);
}
.site-foot__links{display:grid;gap:9px;margin-top:16px}
.site-foot__links a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--c-muted);
  transition:color .18s var(--ease);
}
.site-foot__links a::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:var(--c-line);transition:background .18s var(--ease);
}
.site-foot__links a:hover{color:var(--c-cyan)}
.site-foot__links a:hover::before{background:var(--c-cyan)}
.site-foot__note{
  margin-top:14px;font-size:12.5px;line-height:1.68;
  color:rgba(156,182,198,.78);max-width:26ch;
}
.site-foot__base{
  position:relative;
  width:var(--shell);margin-inline:auto;
  border-top:1px solid rgba(22,64,95,.8);
  padding:24px 0 42px;
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 30px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.03em;
  color:var(--c-muted);
}
.site-foot__contact{color:#C6DCE8}
.site-foot__sync{color:var(--c-cyan)}
.site-foot__legal{color:var(--c-orange-soft)}
.site-foot__copy{color:rgba(156,182,198,.7)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-toggle{display:inline-flex}
  .cmd-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;
    padding:14px var(--gut) 24px;
    background:linear-gradient(180deg,rgba(7,20,34,.99),rgba(5,15,27,.99));
    border-bottom:1px solid var(--c-line);
    box-shadow:0 26px 50px -30px rgba(0,0,0,.9);
  }
  .cmd-nav[data-open]{display:block;animation:navDrop .22s var(--ease)}
  .cmd-nav__list{flex-direction:column;align-items:stretch;gap:3px}
  .cmd-nav__link{
    width:100%;justify-content:flex-start;
    padding:13px 16px;border-radius:13px;font-size:15px;
  }
  .site-foot__inner{grid-template-columns:minmax(0,1fr);gap:clamp(32px,5vw,48px)}
}
@media (max-width:1024px){
  .grid--trio,.grid--quad{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-foot__cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .brand__meta{display:none}
  .cmd-chip--version{display:none}
  .media--3x4{aspect-ratio:4/5}
}
@media (max-width:860px){
  .grid--split,.grid--split-alt,.grid--duo{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:620px){
  .cmd-chip{display:none}
  .grid--trio,.grid--quad{grid-template-columns:minmax(0,1fr)}
  .site-foot__cols{grid-template-columns:minmax(0,1fr);gap:30px}
  .site-foot__base{flex-direction:column;align-items:flex-start;gap:8px}
  .filter__count{margin-left:0;width:100%}
  .btn{width:100%;justify-content:center}
}

/* ---------- motion preference ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  html.has-js [data-reveal]:not(.is-in){opacity:1;transform:none}
  .scroll-rail__bar{transition:none}
}