/* ============================================================
   红黑娱乐间 · 共享样式 /assets/site.css
   ============================================================ */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
button,input,select{font:inherit}
table{border-collapse:collapse;width:100%}

/* ---------- 2. tokens ---------- */
:root{
  --ink:#0B0B0D;
  --ink-2:#17171C;
  --ink-3:#101015;
  --red:#D0202F;
  --red-deep:#7E0F1B;
  --red-bright:#FF4D5E;
  --gold:#E3B04B;
  --cyan:#3FA79E;
  --paper:#F3F0EA;
  --smoke:#9C9CA6;
  --glass:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.08);
  --rail-w:176px;
  --top-h:38px;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.68,.24,1);
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}

/* ---------- 3. base ---------- */
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:16.5px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(58% 42% at 94% -8%, rgba(208,32,47,.22), transparent 62%),
    radial-gradient(46% 36% at -6% 92%, rgba(63,167,158,.10), transparent 60%);
}
::selection{background:var(--red);color:#fff}
:focus-visible{outline:2px solid var(--red-bright);outline-offset:3px;border-radius:2px}

/* ---------- 4. skip link ---------- */
.sk-skip{
  position:fixed;
  left:50%;
  top:6px;
  z-index:95;
  transform:translate(-50%,-220%);
  padding:10px 20px;
  background:var(--red);
  color:#fff;
  font-size:13px;
  letter-spacing:.12em;
  transition:transform .22s var(--ease);
}
.sk-skip:focus{transform:translate(-50%,0)}

/* ---------- 5. scroll progress ---------- */
.sk-progress{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:2px;
  z-index:82;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--red),var(--red-bright) 45%,var(--gold));
  pointer-events:none;
}

/* ---------- 6. header frame ---------- */
.sk-header{position:relative;z-index:60;display:block}

.sk-topbar{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:var(--top-h);
  z-index:62;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 16px;
  background:linear-gradient(90deg,#0B0B0D 0%,#101016 52%,rgba(126,15,27,.62) 100%);
  border-bottom:1px solid var(--line);
  font-family:var(--mono);
  font-size:11px;
  line-height:1;
  letter-spacing:.16em;
  color:var(--smoke);
}
.sk-topbar__brand{
  display:none;
  font-family:var(--sans);
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--paper);
  white-space:nowrap;
}
.sk-topbar__icp{
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
}
.sk-topbar__icp::before{
  content:"";
  width:6px;
  height:6px;
  margin-right:9px;
  background:var(--red);
  border-radius:50%;
  transform:translateY(-1px);
}
.sk-topbar__hours{white-space:nowrap;color:rgba(243,240,234,.55)}
.sk-topbar__now{
  margin-left:auto;
  white-space:nowrap;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
}

.sk-navtoggle{
  position:fixed;
  top:0;
  right:0;
  z-index:66;
  height:var(--top-h);
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:0 16px;
  background:var(--red);
  color:#fff;
  font-size:11px;
  letter-spacing:.18em;
  cursor:pointer;
  transition:background .22s var(--ease);
}
.sk-navtoggle:hover{background:var(--red-bright)}
.sk-header[data-open] .sk-navtoggle{background:var(--red-deep)}
.sk-navtoggle__bars{position:relative;display:block;width:16px;height:9px}
.sk-navtoggle__bars::before,
.sk-navtoggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:1.5px;
  background:currentColor;
  transition:transform .26s var(--ease);
}
.sk-navtoggle__bars::before{top:0}
.sk-navtoggle__bars::after{bottom:0}
.sk-header[data-open] .sk-navtoggle__bars::before{transform:translateY(3.75px) rotate(45deg)}
.sk-header[data-open] .sk-navtoggle__bars::after{transform:translateY(-3.75px) rotate(-45deg)}
.sk-navtoggle__text{display:inline-block}

/* ---------- 7. frame navigation (desktop) ---------- */
.sk-nav{
  position:fixed;
  top:var(--top-h);
  left:0;
  bottom:0;
  z-index:58;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  padding:26px 0 20px;
  overflow-y:auto;
  background:linear-gradient(180deg,#0B0B0D 0%,#121218 100%);
  border-right:1px solid var(--line);
}
.sk-nav__brand{
  display:block;
  margin:0 18px 18px;
  padding:0 2px 20px;
  border-bottom:1px solid var(--line);
}
.sk-nav__brand-cn{
  display:block;
  font-size:1.6rem;
  font-weight:700;
  line-height:1.06;
  letter-spacing:.12em;
  color:var(--paper);
}
.sk-nav__brand-sub{
  display:block;
  margin-top:6px;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.34em;
  color:var(--red-bright);
}
.sk-nav__list{display:flex;flex-direction:column}
.sk-nav__item{position:relative}
.sk-nav__link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:11px;
  padding:13px 18px 13px 20px;
  font-size:14.5px;
  color:#C7C7D0;
  transition:color .22s var(--ease);
}
.sk-nav__link::before{
  content:"";
  position:absolute;
  left:6px;
  right:12px;
  top:5px;
  bottom:5px;
  z-index:0;
  opacity:0;
  transform:skewX(-6deg) scaleX(.55);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--red),var(--red-deep));
  transition:opacity .24s var(--ease),transform .3s var(--ease);
}
.sk-nav__num,
.sk-nav__label{position:relative;z-index:1}
.sk-nav__num{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.14em;
  color:var(--smoke);
  transition:color .22s var(--ease);
}
.sk-nav__label{display:inline-block}
.sk-nav__link:hover{color:var(--paper)}
.sk-nav__link:hover::before{opacity:.3;transform:skewX(-6deg) scaleX(1)}
.sk-nav__link.is-active{color:var(--paper)}
.sk-nav__link.is-active .sk-nav__num{color:var(--red-bright)}
.sk-nav__link[aria-current="page"]{color:#fff;font-weight:500}
.sk-nav__link[aria-current="page"]::before{opacity:1;transform:skewX(-6deg) scaleX(1)}
.sk-nav__link[aria-current="page"] .sk-nav__num{color:var(--gold)}
.sk-nav__foot{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:18px 20px 0;
  border-top:1px solid var(--line);
}
.sk-nav__meta{
  font-family:var(--mono);
  font-size:10.5px;
  line-height:1.6;
  letter-spacing:.16em;
  color:var(--smoke);
}
.sk-nav__back{
  align-self:flex-start;
  font-size:12.5px;
  letter-spacing:.12em;
  color:var(--smoke);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.sk-nav__back:hover{color:var(--red-bright);border-bottom-color:currentColor}

/* ---------- 8. mobile / tablet navigation ---------- */
@media (max-width:959px){
  .sk-topbar{padding-right:104px}
  .sk-topbar__brand{display:inline-block}
  .sk-topbar__icp,
  .sk-topbar__hours{display:none}

  .sk-nav{
    top:var(--top-h);
    left:0;
    right:0;
    bottom:0;
    width:auto;
    padding:28px 22px 30px;
    overflow-y:auto;
    border-right:0;
    border-top:1px solid rgba(208,32,47,.4);
    background:
      radial-gradient(120% 76% at 88% -12%, rgba(208,32,47,.3), transparent 62%),
      linear-gradient(180deg,#101015 0%,#0B0B0D 62%);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s linear;
  }
  .sk-header[data-open] .sk-nav{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .sk-nav__brand{margin:0 0 22px;padding:0 0 20px}
  .sk-nav__brand-cn{font-size:2.1rem}
  .sk-nav__brand-sub{letter-spacing:.42em}
  .sk-nav__item{border-bottom:1px solid rgba(255,255,255,.06)}
  .sk-nav__link{padding:16px 12px 16px 14px;font-size:19px;font-weight:300}
  .sk-nav__link::before{left:0;right:60%;top:8px;bottom:8px}
  .sk-nav__num{font-size:11px}
  .sk-nav__foot{margin-top:26px;padding:18px 2px 0;border-top:1px solid var(--line)}
  body.is-navopen{overflow:hidden}
}

/* ---------- 9. main container ---------- */
.sk-main{
  position:relative;
  z-index:1;
  padding-top:var(--top-h);
  min-height:100vh;
}
@media (min-width:960px){
  .sk-main{padding-left:var(--rail-w)}
}
.sk-wrap{
  width:min(100% - 2.4rem, var(--maxw));
  margin-inline:auto;
}

/* ---------- 10. breadcrumb ---------- */
.sk-breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding-top:22px;
  font-family:var(--mono);
  font-size:11px;
  line-height:1.5;
  letter-spacing:.16em;
  color:var(--smoke);
}
.sk-breadcrumb__link{
  color:var(--smoke);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.sk-breadcrumb__link:hover{color:var(--red-bright);border-bottom-color:currentColor}
.sk-breadcrumb__sep{color:var(--red);opacity:.75}
.sk-breadcrumb__now{color:var(--paper)}

/* ---------- 11. typography ---------- */
.sk-kicker{
  font-family:var(--mono);
  font-size:11px;
  line-height:1.5;
  letter-spacing:.22em;
  color:var(--smoke);
}
.sk-display{
  margin:0;
  font-weight:200;
  font-size:clamp(2.4rem,6.6vw,5.6rem);
  line-height:1.02;
  letter-spacing:-.02em;
}
.sk-display em{
  font-style:normal;
  font-weight:700;
  color:var(--red-bright);
}
.sk-h2{
  margin:0;
  font-weight:300;
  font-size:clamp(1.45rem,2.9vw,2.3rem);
  line-height:1.22;
  letter-spacing:-.01em;
}
.sk-lead{
  max-width:62ch;
  font-size:clamp(1rem,1.35vw,1.1rem);
  line-height:1.8;
  color:rgba(243,240,234,.84);
}
.sk-text{
  max-width:64ch;
  font-size:16px;
  line-height:1.85;
  color:rgba(243,240,234,.72);
}
.sk-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  color:var(--gold);
}
.sk-rule{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,var(--red),rgba(255,255,255,.06) 62%,transparent);
}
.sk-rule--soft{background:linear-gradient(90deg,rgba(255,255,255,.14),transparent)}

/* ---------- 12. buttons & tags ---------- */
.sk-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 26px;
  font-size:13.5px;
  letter-spacing:.12em;
  border:1px solid transparent;
  cursor:pointer;
  clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.sk-btn--solid{background:var(--red);color:#fff}
.sk-btn--solid:hover{background:var(--red-bright)}
.sk-btn--ghost{
  background:rgba(255,255,255,.05);
  border-color:rgba(243,240,234,.34);
  color:var(--paper);
}
.sk-btn--ghost:hover{
  background:rgba(208,32,47,.16);
  border-color:var(--red-bright);
  color:var(--red-bright);
}
.sk-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 11px;
  font-family:var(--mono);
  font-size:11px;
  line-height:1.4;
  letter-spacing:.14em;
  color:var(--paper);
  background:var(--glass);
  border:1px solid var(--line);
}
.sk-tag--red{color:var(--red-bright);border-color:rgba(208,32,47,.5);background:rgba(208,32,47,.13)}
.sk-tag--cyan{color:var(--cyan);border-color:rgba(63,167,158,.45);background:rgba(63,167,158,.10)}
.sk-tag--gold{color:var(--gold);border-color:rgba(227,176,75,.45);background:rgba(227,176,75,.10)}

/* ---------- 13. sections, bands, grid ---------- */
.sk-section{
  position:relative;
  padding:clamp(46px,6.4vw,92px) 0;
}
.sk-section + .sk-section{border-top:1px solid var(--line)}
.sk-section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px 16px;
  margin-bottom:26px;
}
.sk-section__num{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.22em;
  color:var(--red-bright);
}
.sk-section__label{
  font-size:11px;
  letter-spacing:.2em;
  color:var(--smoke);
}
.sk-section__title{
  margin:0;
  flex:1 1 100%;
  font-weight:200;
  font-size:clamp(1.7rem,3.8vw,2.9rem);
  line-height:1.14;
}
.sk-band{
  display:flex;
  gap:14px;
  overflow-x:auto;
  padding:6px 0 18px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.sk-band > *{flex:0 0 min(76vw,282px);scroll-snap-align:start}
.sk-band::-webkit-scrollbar{height:6px}
.sk-band::-webkit-scrollbar-track{background:rgba(255,255,255,.05)}
.sk-band::-webkit-scrollbar-thumb{background:rgba(208,32,47,.55)}
.sk-grid{display:grid;gap:clamp(18px,2.4vw,30px)}
.sk-grid--2{grid-template-columns:1fr}
.sk-grid--split,
.sk-grid--split-rev{grid-template-columns:1fr}
@media (min-width:720px){
  .sk-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:960px){
  .sk-grid--split{grid-template-columns:5fr 7fr}
  .sk-grid--split-rev{grid-template-columns:4fr 8fr}
}

/* ---------- 14. disclosure ---------- */
.sk-disclosure{
  display:flex;
  flex-direction:column;
  border-top:1px solid var(--line);
}
.sk-disclosure__item{border-bottom:1px solid var(--line)}
.sk-disclosure__btn{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:20px 4px;
  text-align:left;
  cursor:pointer;
  font-size:16px;
  font-weight:500;
  color:var(--paper);
  transition:color .2s var(--ease);
}
.sk-disclosure__btn:hover{color:var(--red-bright)}
.sk-disclosure__sign{
  flex:0 0 auto;
  width:9px;
  height:9px;
  border-right:1.5px solid var(--red-bright);
  border-bottom:1.5px solid var(--red-bright);
  transform:rotate(-45deg);
  transition:transform .3s var(--ease);
}
.sk-disclosure__btn[aria-expanded="true"] .sk-disclosure__sign{transform:rotate(45deg)}
.sk-disclosure__panel{
  height:0;
  overflow:hidden;
  transition:height .34s var(--ease);
}
.sk-disclosure__inner{
  max-width:70ch;
  padding:0 4px 24px 27px;
  font-size:15.5px;
  line-height:1.85;
  color:rgba(243,240,234,.72);
}

/* ---------- 15. media frames ---------- */
.sk-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid var(--line);
  background:
    linear-gradient(135deg,rgba(208,32,47,.24),rgba(11,11,13,0) 58%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 30px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 30px),
    #14141A;
}
.sk-media > img,
.sk-media > svg{width:100%;height:100%;object-fit:cover}
.sk-media--wide{aspect-ratio:16/7}
.sk-media--tall{aspect-ratio:3/4}
.sk-media--square{aspect-ratio:1/1}
.sk-media__cap{
  position:absolute;
  left:0;
  bottom:0;
  padding:8px 12px;
  font-family:var(--mono);
  font-size:10.5px;
  line-height:1.4;
  letter-spacing:.16em;
  color:var(--gold);
  background:rgba(11,11,13,.72);
}

/* ---------- 16. footer ---------- */
.sk-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(60px,9vw,120px);
  color:var(--paper);
  border-top:2px solid var(--red);
  background:
    radial-gradient(72% 130% at 6% 0%, rgba(208,32,47,.5), transparent 62%),
    linear-gradient(100deg,#7E0F1B 0%,#3B0A11 32%,#17171C 66%,#0B0B0D 100%);
}
@media (min-width:960px){
  .sk-footer{padding-left:var(--rail-w)}
}
.sk-footer__bands{
  display:grid;
  gap:clamp(26px,3.4vw,42px);
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(42px,5vw,68px) clamp(20px,4vw,54px) clamp(30px,4vw,48px);
}
@media (min-width:760px){
  .sk-footer__bands{grid-template-columns:1.15fr 1fr .9fr}
}
.sk-footer__kicker{
  font-family:var(--mono);
  font-size:10.5px;
  line-height:1.5;
  letter-spacing:.26em;
  color:var(--gold);
}
.sk-footer__links{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:14px;
}
.sk-footer__links a{
  font-size:14.5px;
  color:rgba(243,240,234,.86);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.sk-footer__links a:hover{color:var(--red-bright);border-bottom-color:currentColor}
.sk-footer__links--sub{
  margin-top:18px;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.16);
}
.sk-footer__links--sub a{font-size:12.5px;color:var(--smoke)}
.sk-footer__num{
  margin-top:16px;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(1.15rem,2.1vw,1.5rem);
  line-height:1.3;
  letter-spacing:.04em;
  color:var(--paper);
}
.sk-footer__line{
  margin-top:8px;
  font-size:13.5px;
  line-height:1.6;
  color:rgba(243,240,234,.72);
  overflow-wrap:anywhere;
}
.sk-footer__seg .sk-btn{margin-top:20px}
.sk-footer__ticker{
  display:flex;
  align-items:center;
  overflow:hidden;
  white-space:nowrap;
  padding:10px clamp(20px,4vw,54px);
  border-top:1px solid rgba(255,255,255,.12);
  border-bottom:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.24);
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.2em;
  color:rgba(243,240,234,.42);
}
.sk-footer__tick::after{
  content:"／";
  margin:0 26px;
  color:rgba(208,32,47,.65);
}
.sk-footer__base{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
  padding:16px clamp(20px,4vw,54px) 26px;
  border-top:1px solid rgba(0,0,0,.35);
}
.sk-footer__copy{
  font-family:var(--mono);
  font-size:11px;
  line-height:1.6;
  letter-spacing:.14em;
  color:rgba(243,240,234,.55);
}

/* ---------- 17. back to top ---------- */
.sk-backtop{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:72;
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  background:var(--ink-2);
  border:1px solid rgba(208,32,47,.6);
  color:var(--paper);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  clip-path:polygon(14% 0,100% 0,86% 100%,0 100%);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s linear,background .22s var(--ease);
}
.sk-backtop::before{content:"↑";font-family:var(--mono);font-size:15px;line-height:1}
.sk-backtop.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.sk-backtop:hover{background:var(--red);border-color:var(--red-bright)}

/* ---------- 18. reveal & motion ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
}
[data-reveal].is-visible{opacity:1;transform:none}
[data-reveal="band"]{
  transform:none;
  clip-path:inset(0 100% 0 0);
  transition:clip-path .48s var(--ease),opacity .3s var(--ease);
}
[data-reveal="band"].is-visible{clip-path:inset(0 0 0 0)}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  [data-reveal]{
    opacity:1 !important;
    transform:none !important;
    clip-path:none !important;
  }
}