/* =========================================================
   1号娱乐会馆 · 共享样式 /assets/site.css
   夜间会馆 + 数字入口：墨蓝场地、霓虹青光轨、暖金编号
   ========================================================= */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
hr{border:0;height:1px;background:rgba(143,166,178,.22)}

/* ---------- tokens ---------- */
:root{
  --ink-900:#07111F;
  --ink-800:#0B1B2E;
  --cyan:#4FF0D0;
  --gold:#F2B75B;
  --mist:#EAF2F5;
  --slate:#8FA6B2;
  --magenta:#E85A9A;
  --teal-deep:#0E5C5A;
  --gold-dark:#8A6A2F;
  --coral:#FF7A6B;

  --body-text:rgba(234,242,245,.8);
  --line:rgba(143,166,178,.18);
  --line-strong:rgba(143,166,178,.34);
  --line-cyan:rgba(79,240,208,.34);
  --line-gold:rgba(242,183,91,.34);

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

  --wrap:1180px;
  --gutter:clamp(1.1rem,4vw,2.5rem);
  --ease:cubic-bezier(.2,.7,.25,1);
  --header-offset:6.5rem;
}

/* ---------- base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(to right,rgba(143,166,178,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(143,166,178,.055) 1px,transparent 1px);
  background-size:80px 80px;
  background-position:center top;
  color:var(--mist);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:700;line-height:1.28;letter-spacing:.012em;color:var(--mist)}
h1{font-size:clamp(1.9rem,5vw,3.3rem)}
h2{font-size:clamp(1.45rem,3.2vw,2.1rem)}
h3{font-size:clamp(1.1rem,2.2vw,1.35rem)}
p{color:var(--body-text)}
strong{color:var(--mist);font-weight:700}
small{font-size:.8rem}
::selection{background:var(--cyan);color:#03121a}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
#main-content{scroll-margin-top:var(--header-offset)}
[data-reveal]{scroll-margin-top:var(--header-offset)}

/* ---------- utilities ---------- */
.wrap{width:min(var(--wrap),calc(100% - var(--gutter) * 2));margin-inline:auto}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:0;left:0;z-index:400;
  transform:translateY(-130%);
  background:var(--cyan);color:#03181c;
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.12em;
  padding:.8rem 1.4rem;border-bottom:2px solid var(--gold);
  transition:transform .2s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);outline-offset:-4px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:linear-gradient(180deg,rgba(7,17,31,.97) 0%,rgba(9,21,36,.94) 100%);
  border-bottom:1px solid var(--line-cyan);
  box-shadow:0 18px 44px -34px rgba(0,0,0,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-rail{
  width:min(var(--wrap),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.55rem 0;
}
.brand-sign{display:inline-flex;align-items:center;gap:.7rem;min-width:0}
.brand-mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:2.4rem;height:2.4rem;
  border:1px solid var(--gold-dark);
  box-shadow:inset 0 0 0 3px rgba(7,17,31,.92),0 0 18px rgba(242,183,91,.18);
  color:var(--gold);font-family:var(--font-display);font-weight:700;font-size:1.05rem;line-height:1;
}
.brand-words{display:flex;flex-direction:column;line-height:1.18;min-width:0}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:.05em;color:var(--mist);white-space:nowrap}
.brand-tag{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.16em;color:var(--slate);white-space:nowrap}
.header-tools{display:flex;align-items:center;gap:.55rem;flex:0 0 auto}

.help-beacon{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.48rem .9rem;
  border:1px solid var(--line-cyan);
  color:var(--cyan);
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;
  transition:background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.help-beacon:hover{background:rgba(79,240,208,.12);border-color:var(--cyan);color:#b9fff2}
.help-beacon__dot{
  width:.42rem;height:.42rem;border-radius:50%;background:var(--cyan);
  animation:beacon 3.4s ease-in-out infinite;
}
.help-beacon__text{white-space:nowrap}
@keyframes beacon{
  0%,100%{box-shadow:0 0 0 0 rgba(79,240,208,.55);opacity:.82}
  50%{box-shadow:0 0 0 6px rgba(79,240,208,0);opacity:1}
}

.nav-toggle{
  display:none;align-items:center;gap:.45rem;
  padding:.48rem .7rem;
  border:1px solid var(--line-strong);
  color:var(--mist);
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:grid;gap:4px;width:1.05rem}
.nav-toggle__bars i{display:block;height:2px;background:var(--cyan);transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child{transform:translateY(-3px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

/* ---------- navigation ---------- */
.site-nav{
  width:min(var(--wrap),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  border-top:1px solid var(--line);
  padding:.15rem 0 .4rem;
}
.site-nav__list{display:flex;flex-wrap:wrap;align-items:center;gap:.1rem}
.site-nav__item{display:block}
.site-nav__link{
  display:inline-flex;align-items:baseline;gap:.42rem;
  padding:.5rem .68rem;
  color:var(--slate);font-size:.85rem;
  border-bottom:2px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.site-nav__link:hover{color:var(--mist);background:rgba(79,240,208,.07)}
.site-nav__num{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.06em;color:var(--gold-dark);transition:color .2s var(--ease)}
.site-nav__link:hover .site-nav__num{color:var(--gold)}
.site-nav__label{white-space:nowrap}
.site-nav__link[aria-current="page"]{
  color:var(--cyan);border-bottom-color:var(--cyan);background:rgba(79,240,208,.1);
}
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--cyan)}
.site-nav__link[aria-current="page"] .site-nav__label::after{
  content:"";display:inline-block;width:.34rem;height:.34rem;margin-left:.45rem;
  border-radius:50%;background:var(--cyan);vertical-align:middle;
  box-shadow:0 0 8px var(--cyan);
}
.site-nav__status{
  display:flex;align-items:center;gap:.42rem;white-space:nowrap;
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.16em;color:var(--slate);
}
.site-nav__status-dot{width:.38rem;height:.38rem;border-radius:50%;background:var(--gold);box-shadow:0 0 10px rgba(242,183,91,.7)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.82rem 1.45rem;
  border:1px solid var(--line-strong);
  color:var(--mist);background:transparent;
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.14em;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn:hover{transform:translateY(-2px);border-color:var(--cyan);color:var(--cyan)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--cyan);border-color:var(--cyan);color:#03181c;font-weight:700}
.btn--primary:hover{background:#7df7e0;border-color:#7df7e0;color:#03181c;box-shadow:0 10px 30px -12px rgba(79,240,208,.55)}
.btn--gold{border-color:var(--gold);color:var(--gold)}
.btn--gold:hover{background:var(--gold);color:#211604}
.btn--ghost{border-color:var(--line);color:var(--slate)}
.btn--ghost:hover{color:var(--mist);border-color:var(--line-strong)}
.btn__arrow{font-family:var(--font-mono);font-size:.9em;line-height:1}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{
  padding-top:1.6rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;color:var(--slate);
}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:.5rem}
.breadcrumbs__link{color:var(--slate);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.breadcrumbs__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumbs__sep{color:var(--gold-dark)}
.breadcrumbs__current{color:var(--gold)}

/* ---------- page shell ---------- */
.page-wrap{
  width:min(var(--wrap),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  padding:clamp(2rem,5.5vw,4rem) 0 0;
}
.prose{max-width:68ch;font-size:1.0625rem;line-height:1.85;color:var(--body-text)}
.prose > * + *{margin-top:1.1em}
.prose h2{font-size:clamp(1.4rem,2.8vw,1.95rem);margin-top:2.1em;padding-top:.6em;border-top:1px solid var(--line)}
.prose h3{font-size:clamp(1.08rem,2vw,1.3rem);margin-top:1.8em;color:var(--gold)}
.prose a{color:var(--cyan);border-bottom:1px solid var(--line-cyan)}
.prose a:hover{background:rgba(79,240,208,.1)}
.prose ul li{position:relative;padding-left:1.25rem}
.prose ul li + li{margin-top:.4em}
.prose ul li::before{content:"";position:absolute;left:0;top:.78em;width:.38rem;height:.38rem;background:var(--gold)}
.prose ol{list-style:decimal;padding-left:1.45rem}
.prose ol li + li{margin-top:.4em}
.prose ol li::marker{color:var(--gold);font-family:var(--font-mono);font-size:.9em}
.prose blockquote{border-left:2px solid var(--cyan);padding:.25rem 0 .25rem 1.15rem;font-family:var(--font-display);color:var(--mist)}
.prose code{font-family:var(--font-mono);font-size:.88em;color:var(--gold);background:rgba(242,183,91,.1);padding:.1em .38em}

/* ---------- grids ---------- */
.grid{display:grid;gap:1.25rem}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--auto{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* ---------- editorial components ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.24em;
  color:var(--gold);
}
.eyebrow::before{content:"";width:1.7rem;height:1px;background:var(--gold)}

.section-head{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.6rem 1.3rem;align-items:start}
.section-head__num{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(2rem,6vw,3.4rem);line-height:.9;
  color:transparent;-webkit-text-stroke:1px var(--gold-dark);
}
.section-head__text{min-width:0}
.section-head__text > * + *{margin-top:.5rem}
.section-head__title{font-size:clamp(1.4rem,3.2vw,2.2rem)}
.section-head__note{color:var(--slate);font-size:.94rem;max-width:54ch}

.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.18rem .58rem;
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;
  color:var(--slate);white-space:nowrap;
}
.tag--cyan{border-color:var(--line-cyan);color:var(--cyan);background:rgba(79,240,208,.09)}
.tag--gold{border-color:var(--line-gold);color:var(--gold);background:rgba(242,183,91,.09)}
.tag--magenta{border-color:rgba(232,90,154,.42);color:var(--magenta);background:rgba(232,90,154,.1)}
.tag--alert{border-color:rgba(255,122,107,.45);color:var(--coral);background:rgba(255,122,107,.1)}

.panel{
  position:relative;
  background:var(--ink-800);
  border:1px solid var(--line);
  padding:1.35rem 1.4rem;
}
.panel--glow{
  border-color:rgba(79,240,208,.28);
  box-shadow:0 0 0 1px rgba(79,240,208,.1),0 30px 70px -50px rgba(79,240,208,.75);
}
.panel__title{font-size:1.05rem;margin-bottom:.45rem;color:var(--mist)}

/* ---------- image containers (page stage fills them) ---------- */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16 / 9;
  background:linear-gradient(150deg,var(--ink-800),#091624 70%,#06101c);
  border:1px solid var(--line);
}
.media-frame img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.06) brightness(.92);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(152deg,rgba(7,17,31,.06) 0%,rgba(7,17,31,.55) 62%,rgba(7,17,31,.92) 100%);
}
.media-frame--tall{aspect-ratio:4 / 5}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--slant{clip-path:polygon(0 0,100% 0,100% 87%,0 100%)}
.media-frame__caption{
  position:absolute;left:0;bottom:0;z-index:2;
  padding:.62rem 1rem;
  background:rgba(7,17,31,.86);
  border-top:1px solid var(--line-cyan);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.13em;color:var(--cyan);
}

/* ---------- horizontal rail ---------- */
.rail{
  display:flex;gap:1rem;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  padding-bottom:.7rem;
  scrollbar-width:thin;
  scrollbar-color:var(--teal-deep) transparent;
}
.rail > *{flex:0 0 auto;scroll-snap-align:start}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-track{background:rgba(143,166,178,.1)}
.rail::-webkit-scrollbar-thumb{background:var(--teal-deep)}

/* ---------- reveal ---------- */
.is-enhanced [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .62s var(--ease),transform .62s var(--ease);
}
.is-enhanced [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3.5rem,8vw,6rem);
  background:linear-gradient(180deg,#091624 0%,var(--ink-900) 72%);
  border-top:1px solid var(--line-gold);
  color:var(--slate);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan) 0 16%,var(--gold) 16% 44%,var(--magenta) 44% 58%,var(--teal-deep) 58% 100%);
}
.footer-grid{
  width:min(var(--wrap),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  display:grid;
  grid-template-columns:1.5fr .85fr 1.3fr 1fr;
  gap:clamp(1.6rem,4vw,3rem);
  padding:clamp(2.2rem,5vw,3.4rem) 0 clamp(1.6rem,4vw,2.4rem);
}
.footer-brand{min-width:0}
.footer-brand__mark{
  display:grid;place-items:center;
  width:2.6rem;height:2.6rem;
  border:1px solid var(--gold-dark);
  box-shadow:inset 0 0 0 3px #091624,0 0 20px rgba(242,183,91,.16);
  color:var(--gold);font-family:var(--font-display);font-weight:700;font-size:1.15rem;line-height:1;
}
.footer-brand__name{
  margin-top:.95rem;
  font-family:var(--font-display);font-weight:700;font-size:1.2rem;letter-spacing:.05em;color:var(--mist);
}
.footer-brand__line{margin-top:.5rem;font-size:.92rem;line-height:1.85;max-width:26ch;color:var(--slate)}

.footer-col__title{
  font-family:var(--font-mono);font-weight:500;
  font-size:.68rem;letter-spacing:.22em;color:var(--gold);
  padding-bottom:.65rem;
  border-bottom:1px solid var(--line);
  margin-bottom:.95rem;
}
.footer-list{display:grid;gap:.5rem}
.footer-list__link{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.9rem;color:var(--slate);
  transition:color .2s var(--ease);
}
.footer-list__link::before{content:"";width:.35rem;height:1px;background:var(--gold-dark);transition:width .22s var(--ease),background .22s var(--ease)}
.footer-list__link:hover{color:var(--cyan)}
.footer-list__link:hover::before{width:.95rem;background:var(--cyan)}

.footer-contact{display:grid;gap:.7rem}
.footer-contact__item{display:grid;grid-template-columns:3.1rem minmax(0,1fr);gap:.55rem;align-items:baseline}
.footer-contact__key{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;color:var(--gold-dark)}
.footer-contact__val{font-size:.88rem;color:var(--mist);line-height:1.6;word-break:break-word}

.copy-btn{
  display:inline-flex;align-items:center;gap:.4rem;
  margin-top:.9rem;padding:.36rem .72rem;
  border:1px solid var(--line-cyan);
  color:var(--cyan);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.13em;
  transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.copy-btn:hover{background:rgba(79,240,208,.12);border-color:var(--cyan)}
.copy-btn.is-done{border-color:var(--gold);color:var(--gold);background:rgba(242,183,91,.14)}

.footer-meta__icp{
  margin-top:1rem;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;color:var(--slate);
}
.footer-meta__region{margin-top:.3rem;font-size:.82rem;color:var(--slate)}

.footer-bottom{
  width:min(var(--wrap),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.4rem 1.5rem;
  padding:1rem 0 1.7rem;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.12em;
}
.footer-bottom__copy{color:rgba(143,166,178,.85)}
.footer-bottom__note{color:rgba(143,166,178,.62)}

/* ---------- tablet ---------- */
@media (max-width:1024px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-nav__link{padding:.5rem .52rem;font-size:.82rem}
  .site-nav__status{display:none}
  .footer-grid{grid-template-columns:1.3fr 1fr 1.2fr}
  .footer-col:last-child{grid-column:1 / -1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.4rem 2rem;align-items:start}
  .footer-col:last-child .footer-col__title{grid-column:1 / -1}
}

/* ---------- mobile ---------- */
@media (max-width:900px){
  :root{--header-offset:5.2rem}
  .nav-toggle{display:inline-flex}
  .brand-tag{display:none}
  .site-nav{display:none;flex-direction:column;align-items:stretch;gap:0;border-top:0;padding:0 0 .7rem}
  .site-header[data-open] .site-nav{display:flex}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__item{width:100%}
  .site-nav__link{
    display:flex;width:100%;
    padding:.8rem .2rem;
    font-size:.95rem;
    border-bottom:1px solid var(--line);
    border-left:2px solid transparent;
  }
  .site-nav__link[aria-current="page"]{
    border-bottom-color:var(--line);
    border-left-color:var(--cyan);
    background:rgba(79,240,208,.1);
  }
  .site-nav__link[aria-current="page"] .site-nav__label::after{display:none}
  .site-nav__status{display:flex;padding:.85rem .2rem 0;border-top:1px solid var(--line)}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-col:last-child{grid-column:1 / -1;display:block}
}

@media (max-width:560px){
  .brand-name{font-size:.98rem}
  .help-beacon{padding:.45rem .62rem}
  .help-beacon__text{font-size:.66rem}
  .nav-toggle__label{display:none}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-col:last-child{display:block}
  .footer-bottom{flex-direction:column;align-items:flex-start;letter-spacing:.08em}
  .section-head{grid-template-columns:minmax(0,1fr)}
  .section-head__num{font-size:1.9rem}
  .prose{font-size:1rem}
}

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