/* ============================================================
   ROR电竞站 · 共享样式 /assets/site.css
   01 Reset · 02 变量 · 03 基础排版 · 04 框架导航
   05 页脚 · 06 通用组件 · 07 图像容器 · 08 响应式 · 09 动效与可访问性
   ============================================================ */

/* ---------- 01 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,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,picture,svg{max-width:100%}
img{display:block}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{text-decoration:none;color:inherit}

/* ---------- 02 变量 ---------- */
:root{
  --ink-900:#060812;
  --ink-850:#0A0D20;
  --ink-800:#12143A;
  --ink-700:#191C4A;
  --neon:#7C4DFF;
  --neon-soft:rgba(124,77,255,.18);
  --cyan:#22D3EE;
  --orange:#FF7A1A;
  --silver:#C7D2E0;
  --jade:#0B3B3C;
  --wine:#3A1024;
  --white:#F4F7FF;
  --muted:#AEB8D4;
  --green:#32D583;
  --lilac:#B9A2FF;
  --line:rgba(199,210,224,.16);
  --line-soft:rgba(199,210,224,.09);
  --bar-h:44px;
  --mobile-bar:58px;
  --frame-w:268px;
  --pad-x:clamp(18px,4.2vw,72px);
  --radius-lg:26px;
  --radius-md:18px;
  --radius-pill:999px;
  --shadow-panel:0 18px 48px -22px rgba(4,6,18,.9);
  --font-head:"Oswald","Bebas Neue","Saira Condensed","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

/* ---------- 03 基础排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(rgba(124,77,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(34,211,238,.045) 1px,transparent 1px),
    radial-gradient(120% 80% at 102% -10%,rgba(124,77,255,.20),transparent 58%),
    radial-gradient(90% 70% at -10% 110%,rgba(11,59,60,.65),transparent 62%);
  background-size:68px 68px,68px 68px,auto,auto;
  background-attachment:fixed;
  color:var(--silver);
  font-family:var(--font-body);
  font-size:clamp(16px,.45vw + 15px,17.5px);
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--white);font-weight:800;line-height:1.04;letter-spacing:-.02em;text-transform:uppercase}
h1{font-size:clamp(2.8rem,6.6vw,5.6rem);letter-spacing:-.04em}
h2{font-size:clamp(1.9rem,3.6vw,3rem)}
h3{font-size:clamp(1.25rem,1.6vw,1.7rem)}
h4{font-size:1.05rem;letter-spacing:0;text-transform:none}
p{max-width:74ch}
strong{color:var(--white)}
a{color:var(--lilac);transition:color .18s ease,border-color .18s ease}
::selection{background:var(--neon);color:#06080f}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.skip-link{
  position:fixed;top:-120px;left:14px;z-index:130;
  padding:11px 20px;border-radius:var(--radius-pill);
  background:var(--cyan);color:#04060f;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  transition:top .18s ease;
}
.skip-link:focus{top:12px}

.site-header{position:relative;z-index:80}

/* ---------- 04 框架导航 ---------- */
.statusbar{
  position:fixed;top:0;left:0;right:0;z-index:90;height:var(--bar-h);
  border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(11,59,60,.95),rgba(18,20,58,.96) 42%,rgba(58,16,36,.92));
}
.statusbar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:100%;padding:0 clamp(12px,2vw,24px);
}
.statusbar__text{
  display:flex;align-items:center;gap:10px;min-width:0;max-width:100%;
  overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--silver);
}
.statusbar__side{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.statusbar__meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--cyan)}
.statusbar__cta{white-space:nowrap}

.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:rgba(199,210,224,.14);overflow:hidden}
.progress__fill{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--neon) 55%,var(--orange));
}

.navframe{
  position:fixed;top:var(--bar-h);left:0;bottom:0;z-index:80;width:var(--frame-w);
  display:flex;flex-direction:column;gap:18px;padding:26px 20px 22px;
  border-right:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,20,58,.98),rgba(6,8,18,.98));
  box-shadow:24px 0 60px -40px rgba(0,0,0,.95);
}
.navframe::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(115deg,rgba(124,77,255,.13) 0 1px,transparent 1px 58px);
}
.navframe>*{position:relative;z-index:1}

.brand{display:flex;align-items:center;gap:12px;color:var(--white)}
.brand__mark{
  display:grid;place-items:center;flex:0 0 auto;width:44px;height:44px;border-radius:14px;
  font-family:var(--font-head);font-size:1.5rem;font-weight:900;color:#05070f;
  background:linear-gradient(135deg,var(--cyan),var(--neon));
  box-shadow:0 10px 26px -14px rgba(124,77,255,.95);
  transition:filter .18s ease;
}
.brand:hover .brand__mark{filter:brightness(1.12)}
.brand__text{display:flex;flex-direction:column;line-height:1.16}
.brand__name{font-family:var(--font-head);font-size:1.16rem;font-weight:800;letter-spacing:.02em}
.brand__sub{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.3em;color:var(--cyan)}
.brand--footer .brand__mark{width:40px;height:40px;border-radius:12px;font-size:1.3rem}

.site-nav{display:flex;flex-direction:column;flex:1;min-height:0;gap:18px}
.site-nav__list{display:flex;flex-direction:column;gap:4px}
.site-nav__link{
  display:flex;align-items:center;gap:12px;padding:11px 12px;
  border:1px solid transparent;border-radius:14px;color:var(--silver);
  transition:background .18s ease,border-color .18s ease,color .18s ease,transform .18s ease;
}
.site-nav__index{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.site-nav__label{font-size:15.5px;font-weight:600}
.site-nav__link:hover{
  transform:translateX(3px);
  border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.07);color:var(--white);
}
.site-nav__link:hover .site-nav__index{color:var(--cyan)}
.site-nav__link[aria-current="page"]{
  border-color:rgba(185,162,255,.5);color:var(--white);
  background:linear-gradient(90deg,rgba(124,77,255,.28),rgba(124,77,255,.04));
}
.site-nav__link[aria-current="page"]::before{
  content:"";flex:0 0 auto;width:3px;height:20px;border-radius:2px;background:var(--cyan);
}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--orange)}

.navframe__foot{
  margin-top:auto;display:flex;flex-direction:column;gap:10px;padding:16px 14px;
  border:1px solid var(--line);border-radius:var(--radius-md);
  background:linear-gradient(160deg,rgba(11,59,60,.55),rgba(58,16,36,.35));
}
.navframe__foot-line{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--silver);
}
.navframe__foot-line--mono{color:var(--muted)}
.navframe__cta{align-self:flex-start;margin-top:2px}

.navtoggle{
  display:none;align-items:center;gap:10px;padding:10px 15px;
  border:1px solid var(--line);border-radius:var(--radius-pill);background:rgba(18,20,58,.85);
  color:var(--white);font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  transition:border-color .18s ease,color .18s ease;
}
.navtoggle:hover{border-color:var(--cyan);color:var(--cyan)}
.navtoggle__bars{position:relative;width:20px;height:2px;border-radius:2px;background:var(--cyan)}
.navtoggle__bars::before,.navtoggle__bars::after{
  content:"";position:absolute;left:0;width:20px;height:2px;border-radius:2px;background:var(--cyan);
  transition:transform .2s ease,top .2s ease;
}
.navtoggle__bars::before{top:-6px}
.navtoggle__bars::after{top:6px}
.navtoggle[aria-expanded="true"] .navtoggle__bars{background:transparent}
.navtoggle[aria-expanded="true"] .navtoggle__bars::before{top:0;transform:rotate(45deg)}
.navtoggle[aria-expanded="true"] .navtoggle__bars::after{top:0;transform:rotate(-45deg)}

.nav-scrim{
  position:fixed;inset:0;z-index:75;background:rgba(4,6,16,.72);
  opacity:0;pointer-events:none;transition:opacity .2s ease;
}
.nav-scrim[data-on]{opacity:1;pointer-events:auto}

/* ---------- 05 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,110px);border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,20,58,.95),rgba(6,8,18,.99) 55%,#04060f);
}
.foot-top{padding:clamp(34px,5vw,64px) 0}
.foot-wrap{
  width:100%;max-width:1320px;margin:0 auto;padding:0 var(--pad-x);
  display:grid;grid-template-columns:minmax(240px,1fr) 2.1fr;gap:clamp(24px,4vw,56px);align-items:start;
}
.foot-brand{display:flex;flex-direction:column;gap:14px}
.foot-brand__line{max-width:34ch;font-size:15px;color:var(--muted)}
.foot-status{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
}
.foot-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,40px)}
.foot-col{display:flex;flex-direction:column;gap:12px}
.foot-col__title{
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;letter-spacing:.26em;
  text-transform:uppercase;color:var(--lilac);
}
.foot-list{display:flex;flex-direction:column;gap:9px}
.foot-link{
  position:relative;padding-left:0;font-size:15px;color:var(--silver);
  transition:color .18s ease,padding-left .18s ease;
}
.foot-link:hover{color:var(--cyan);padding-left:11px}
.foot-link:hover::before{
  content:"";position:absolute;left:0;top:50%;width:5px;height:5px;border-radius:50%;
  background:var(--cyan);transform:translateY(-50%);
}
.foot-col--contact{gap:10px}
.contact-chip{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;
  width:100%;padding:11px 14px;text-align:left;
  border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(11,59,60,.3);
  transition:border-color .18s ease,background .18s ease,transform .18s ease;
}
.contact-chip:hover{border-color:var(--cyan);background:rgba(34,211,238,.08);transform:translateY(-2px)}
.contact-chip__key{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.contact-chip__val{font-family:var(--font-mono);font-size:12.5px;color:var(--white);word-break:break-all}
.contact-chip__flag{
  position:absolute;top:-9px;right:10px;padding:2px 9px;border-radius:var(--radius-pill);
  background:var(--green);color:#04220f;font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;
  opacity:0;transform:translateY(4px);transition:opacity .18s ease,transform .18s ease;
}
.contact-chip[data-copied] .contact-chip__flag{opacity:1;transform:none}
.foot-addr{font-size:14.5px;color:var(--muted)}
.foot-note{max-width:40ch;font-size:13px;line-height:1.7;color:rgba(174,184,212,.86)}
.foot-band{height:6px;background:linear-gradient(90deg,var(--cyan),var(--neon) 38%,var(--orange) 72%,var(--jade))}
.foot-bottom{padding:18px 0 26px;border-top:1px solid var(--line)}
.foot-wrap--bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.foot-legal{font-size:12.5px;color:var(--muted)}
.foot-legal--mono{font-family:var(--font-mono);letter-spacing:.2em;text-transform:uppercase;color:rgba(34,211,238,.85)}
.totop{
  position:fixed;right:clamp(14px,2vw,26px);bottom:clamp(16px,3vw,30px);z-index:78;
  display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(34,211,238,.5);background:rgba(6,8,18,.92);color:var(--cyan);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .2s ease,transform .2s ease,border-color .2s ease,color .2s ease;
}
.totop[data-on]{opacity:1;pointer-events:auto;transform:none}
.totop:hover{border-color:var(--neon);color:var(--white)}

/* ---------- 06 通用组件 ---------- */
.shell{width:100%;max-width:1360px;margin:0 auto;padding:clamp(30px,4vw,58px) var(--pad-x) clamp(50px,6vw,90px)}
.shell--narrow{max-width:960px}
.section{position:relative;padding:clamp(30px,4.4vw,64px) 0}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:clamp(20px,2.6vw,34px);
}
.section-head__title{margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:12px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-num{
  display:block;margin-bottom:10px;font-family:var(--font-head);font-weight:900;
  font-size:clamp(2.4rem,5.6vw,4.4rem);line-height:.85;letter-spacing:-.04em;
  color:rgba(124,77,255,.45);
}
@supports (-webkit-text-stroke:1px red){
  .section-num{color:transparent;-webkit-text-stroke:1.4px rgba(124,77,255,.7)}
}
.divider-diag{
  height:1px;margin:clamp(24px,3vw,44px) 0;transform:skewY(-.6deg);
  background:linear-gradient(90deg,transparent,var(--line),transparent);
}
.band{
  position:relative;padding:clamp(20px,3vw,42px);
  border:1px solid var(--line);border-radius:var(--radius-lg);
}
.band--jade{background:linear-gradient(140deg,rgba(11,59,60,.85),rgba(8,10,24,.92))}
.band--wine{background:linear-gradient(140deg,rgba(58,16,36,.85),rgba(8,10,24,.92))}
.band--neon{background:linear-gradient(140deg,rgba(124,77,255,.24),rgba(8,10,24,.92))}

.btn{
  display:inline-flex;align-items:center;gap:.55em;padding:13px 22px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:rgba(18,20,58,.72);color:var(--white);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  transition:border-color .18s ease,color .18s ease,transform .18s ease,background .18s ease,filter .18s ease;
}
.btn:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--neon{
  border-color:transparent;color:#050614;font-weight:700;
  background:linear-gradient(100deg,var(--neon),#5C2BFF 58%,var(--cyan));
  box-shadow:0 12px 30px -14px rgba(124,77,255,.9);
}
.btn--neon:hover{color:#050614;filter:brightness(1.08)}
.btn--ghost{background:transparent}
.btn--sm{padding:9px 16px;font-size:11.5px}

.grid{display:grid;gap:clamp(14px,1.8vw,26px)}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--auto{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}

.card{
  position:relative;padding:clamp(18px,2.4vw,30px);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(158deg,rgba(18,20,58,.95),rgba(8,10,24,.96));
  box-shadow:var(--shadow-panel);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{
  transform:translateY(-4px);border-color:rgba(34,211,238,.5);
  box-shadow:0 26px 54px -26px rgba(124,77,255,.75);
}
.card--offset{margin-top:-22px}
.card--accent{border-color:rgba(124,77,255,.55);background:linear-gradient(158deg,rgba(124,77,255,.22),rgba(8,10,24,.96))}
.card--jade{border-color:rgba(34,211,238,.28);background:linear-gradient(158deg,rgba(11,59,60,.85),rgba(8,10,24,.96))}
.card--wine{border-color:rgba(255,122,26,.4);background:linear-gradient(158deg,rgba(58,16,36,.9),rgba(8,10,24,.96))}

.chip{
  display:inline-flex;align-items:center;gap:8px;padding:6px 13px;
  border:1px solid var(--line);border-radius:var(--radius-pill);background:rgba(18,20,58,.75);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--silver);
}
.chip--cyan{border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.08);color:var(--cyan)}
.chip--neon{border-color:rgba(124,77,255,.5);background:rgba(124,77,255,.12);color:var(--lilac)}
.chip--orange{border-color:rgba(255,122,26,.5);background:rgba(255,122,26,.1);color:var(--orange)}
.chip--green{border-color:rgba(50,213,131,.45);background:rgba(50,213,131,.1);color:var(--green)}

.dot{display:inline-block;flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--silver)}
.dot--live{background:var(--green);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(50,213,131,.55);opacity:1}
  50%{box-shadow:0 0 0 7px rgba(50,213,131,0);opacity:.6}
}

.data-list{display:flex;flex-direction:column;font-family:var(--font-mono);font-size:12.5px}
.data-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed var(--line-soft)}
.data-row__key{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.data-row__val{color:var(--white);text-align:right}
.data-row__val--cyan{color:var(--cyan)}
.data-row__val--orange{color:var(--orange)}

.stat{display:flex;flex-direction:column;gap:4px;padding:14px 0}
.stat__num{font-family:var(--font-head);font-size:clamp(1.8rem,3.2vw,2.6rem);font-weight:800;letter-spacing:-.03em;color:var(--white)}
.stat__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}

.tabs{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:14px}
.tab{
  padding:9px 16px;border:1px solid var(--line);border-radius:var(--radius-pill);background:rgba(10,13,32,.72);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease;
}
.tab:hover{border-color:var(--cyan);color:var(--white);transform:translateY(-2px)}
.tab[aria-selected="true"]{
  border-color:transparent;color:#05070f;font-weight:700;
  background:linear-gradient(100deg,var(--neon),rgba(34,211,238,.78));
}
.tabpanel[hidden]{display:none}

.acc{border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(8,10,24,.74);overflow:hidden;transition:border-color .18s ease}
.acc + .acc{margin-top:10px}
.acc[open]{border-color:rgba(34,211,238,.42)}
.acc__q{
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:15px 18px;
  font-size:15.5px;font-weight:600;color:var(--white);cursor:pointer;list-style:none;
  transition:color .18s ease;
}
.acc__q::-webkit-details-marker{display:none}
.acc__q:hover{color:var(--cyan)}
.acc__icon{font-family:var(--font-mono);color:var(--cyan);transition:transform .18s ease}
.acc[open] .acc__icon{transform:rotate(45deg)}
.acc__body{padding:0 18px 18px;font-size:15px;color:var(--muted)}

.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:22px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
}
.crumbs a:hover{color:var(--cyan)}
.crumbs__sep{color:var(--neon)}
.crumbs [aria-current="page"]{color:var(--white)}

.prose h2{margin-top:2.1em;margin-bottom:.6em}
.prose h3{margin-top:1.7em;margin-bottom:.5em}
.prose p{margin-bottom:1.15em}
.prose ul{display:flex;flex-direction:column;gap:8px;margin:0 0 1.2em}
.prose ul li{position:relative;padding-left:20px}
.prose ul li::before{content:"";position:absolute;left:0;top:.78em;width:8px;height:1px;background:var(--cyan)}
.prose a{border-bottom:1px solid rgba(185,162,255,.5)}
.prose a:hover{color:var(--cyan);border-color:var(--cyan)}

.visually-hidden{
  position:absolute!important;width:1px;height:1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;
}
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 07 图像容器（页面阶段放图片占位） ---------- */
.media{
  position:relative;overflow:hidden;isolation:isolate;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(18,20,58,.92),rgba(6,8,18,.96));
}
.media > img,.media > picture > img{width:100%;height:100%;object-fit:cover;display:block}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--3x4{aspect-ratio:3/4}
.media--1x1{aspect-ratio:1/1}
.media--21x9{aspect-ratio:21/9}
.media__tag{
  position:absolute;left:14px;top:14px;z-index:2;padding:6px 12px;
  border:1px solid rgba(34,211,238,.5);border-radius:var(--radius-pill);background:rgba(6,8,18,.84);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:38px 18px 16px;
  font-size:13.5px;color:var(--silver);
  background:linear-gradient(180deg,transparent,rgba(4,6,16,.94));
}
.media__frame::after{
  content:"";position:absolute;inset:10px;z-index:1;pointer-events:none;
  border:1px solid rgba(199,210,224,.16);border-radius:calc(var(--radius-lg) - 9px);
}
.media-stack{position:relative;display:grid}
.media-stack > *{grid-area:1/1}
.media-stack__back{transform:translate(20px,20px);opacity:.6}

/* ---------- 08 响应式 ---------- */
@media (min-width:961px){
  body{padding-left:var(--frame-w);padding-top:var(--bar-h)}
}
@media (max-width:1100px){
  .grid--3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
}
@media (max-width:960px){
  :root{--bar-h:40px}
  body{padding-top:calc(var(--bar-h) + var(--mobile-bar))}
  .navframe{
    top:var(--bar-h);left:0;right:0;bottom:auto;width:auto;height:var(--mobile-bar);
    flex-direction:row;align-items:center;justify-content:space-between;gap:12px;
    padding:0 16px;border-right:0;border-bottom:1px solid var(--line);
    box-shadow:0 16px 40px -30px rgba(0,0,0,.95);
  }
  .navframe::before{display:none}
  .site-nav{
    position:fixed;top:calc(var(--bar-h) + var(--mobile-bar));left:0;bottom:0;z-index:79;
    width:min(340px,88vw);padding:20px 18px 26px;overflow-y:auto;
    border-right:1px solid var(--line);border-radius:0 var(--radius-lg) var(--radius-lg) 0;
    background:linear-gradient(180deg,rgba(18,20,58,.99),rgba(6,8,18,.99));
    box-shadow:30px 0 70px -34px rgba(0,0,0,.95);
    transform:translateX(-104%);transition:transform .24s ease;
  }
  .site-nav[data-open]{transform:translateX(0)}
  .navtoggle{display:inline-flex}
  .foot-wrap{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12{grid-column:1/-1}
  .card--offset{margin-top:0}
}
@media (max-width:700px){
  .grid--2{grid-template-columns:1fr}
  .grid--auto{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr}
  .brand__name{font-size:1.04rem}
}
@media (max-width:640px){
  .statusbar__meta{display:none}
  .statusbar__text{font-size:10.5px;letter-spacing:.1em}
  .statusbar__cta{padding:8px 13px;font-size:11px}
  .foot-wrap--bottom{flex-direction:column;align-items:flex-start}
}

/* ---------- 09 动效与可访问性 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
}