/* =========================================================
   博亚娱乐会馆 · 共享样式 /assets/site.css
   夜间会馆 × 数据仪表盘
   ========================================================= */

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

/* ---------- 02 Tokens ---------- */
:root{
  --ink:#0B1A16;
  --ink-2:#12261F;
  --line:#1C3A31;
  --line-soft:rgba(28,58,49,.62);
  --abyss:#060F0D;
  --copper:#B87333;
  --copper-lit:#D89A55;
  --amber:#FF9E2C;
  --steel:#7F94A8;
  --mist:#F2F5F3;
  --sand:#A9B6B0;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --rail:72px;
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 03 Base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 520px at 84% -6%, rgba(184,115,51,.15), transparent 60%),
    radial-gradient(720px 460px at 2% 8%, rgba(127,148,168,.10), transparent 62%),
    linear-gradient(180deg,#0B1A16 0%,#0A1713 58%,#08120F 100%);
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:700;line-height:1.3;letter-spacing:.05em}
::selection{background:var(--copper);color:#0B1A16}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 04 布局基础 ---------- */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section__head{display:flex;flex-direction:column;gap:10px;margin-bottom:34px}
.section__index{font-family:var(--font-mono);font-size:12px;letter-spacing:.26em;color:var(--copper);text-transform:uppercase}
.section__title{font-size:clamp(26px,3.6vw,42px);letter-spacing:.06em}
.section__title::after{content:"";display:block;width:56px;height:2px;margin-top:16px;background:linear-gradient(90deg,var(--copper),rgba(184,115,51,0))}
.section__lede{max-width:34em;color:var(--sand);font-size:16px}

.divider-band{height:1px;background:linear-gradient(90deg,transparent,rgba(184,115,51,.7),transparent)}
.divider-band--thick{
  height:56px;
  background:linear-gradient(90deg,rgba(184,115,51,.20),rgba(255,158,44,.06) 46%,transparent);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr)}

/* ---------- 05 文本与面包屑 ---------- */
.prose{max-width:36em;color:var(--mist)}
.prose p+p{margin-top:14px}
.prose strong{color:var(--copper-lit)}
.prose a{color:var(--copper-lit);border-bottom:1px solid rgba(216,154,85,.45)}

.breadcrumbs{padding-top:20px}
.breadcrumbs__list{display:flex;flex-wrap:wrap;gap:0;font-size:12px;letter-spacing:.12em;color:var(--sand)}
.breadcrumbs__item{display:inline-flex;align-items:center}
.breadcrumbs__item+.breadcrumbs__item::before{content:"/";color:var(--copper);margin:0 10px}
.breadcrumbs__item a:hover{color:var(--copper-lit)}

/* ---------- 06 按钮 / 标签 / 数值 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;letter-spacing:.14em;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:hover{border-color:var(--copper);color:var(--copper-lit)}
.btn--amber{background:var(--amber);border-color:var(--amber);color:#0B1A16;font-weight:700}
.btn--amber:hover{background:var(--copper-lit);border-color:var(--copper-lit);color:#08120F}
.btn--copper{background:linear-gradient(135deg,var(--copper),#8E5622);border-color:transparent;color:#0B1A16;font-weight:700}
.btn--copper:hover{color:#0B1A16;filter:brightness(1.08)}
.btn--ghost{border-color:rgba(127,148,168,.45);color:var(--steel)}
.btn--ghost:hover{border-color:var(--steel);color:var(--mist)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border:1px solid var(--line);border-radius:999px;
  font-size:12px;letter-spacing:.14em;color:var(--sand);
}
.tag--steel{color:var(--steel);border-color:rgba(127,148,168,.42);background:rgba(127,148,168,.10)}
.tag--amber{color:var(--amber);border-color:rgba(255,158,44,.45);background:rgba(255,158,44,.10)}

.num-chip{
  display:inline-block;padding:2px 9px;border-radius:4px;
  background:var(--copper);color:#0B1A16;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
}

.stat{display:flex;flex-direction:column;gap:4px}
.stat__value{font-family:var(--font-mono);font-size:34px;line-height:1.15;color:var(--copper-lit)}
.stat__label{font-size:12px;letter-spacing:.18em;color:var(--steel)}

/* ---------- 07 卡片 / 图片容器 ---------- */
.card{
  position:relative;overflow:hidden;
  padding:24px 22px 26px;
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:14px;
}
.card::before{content:"";position:absolute;left:0;top:0;width:3px;height:38px;background:var(--copper)}
.card--amber{border-color:rgba(255,158,44,.42);background:linear-gradient(160deg,rgba(255,158,44,.10),var(--ink-2) 62%)}
.card--amber::before{background:var(--amber);height:56px}
.card__num{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--copper)}
.card__title{margin-top:10px;font-size:19px;letter-spacing:.06em}
.card__text{margin-top:8px;font-size:15px;color:var(--sand)}

.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);border-radius:14px;
  background:
    radial-gradient(120% 90% at 18% 0%, rgba(184,115,51,.20), transparent 62%),
    linear-gradient(158deg,#12261F,#060F0D);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(135deg,rgba(255,158,44,.12),transparent 44%);
}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06)}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:16px;font-size:12px;letter-spacing:.14em;color:var(--mist);
  background:linear-gradient(180deg,transparent,rgba(6,15,13,.92));
}

/* ---------- 08 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,26,22,.93);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:box-shadow .3s var(--ease),background-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(11,26,22,.98);box-shadow:0 14px 32px rgba(0,0,0,.42)}

.skip-link{
  position:absolute;left:14px;top:-64px;z-index:99;
  padding:10px 16px;border-radius:0 0 8px 8px;
  background:var(--amber);color:#0B1A16;font-size:13px;letter-spacing:.1em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

.site-header__inner{
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:14px 24px;
  display:flex;align-items:center;gap:24px;
}

.brand-cluster{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand__mark{
  width:12px;height:12px;flex:none;
  background:var(--copper);
  border-radius:3px 9px 3px 9px;
  box-shadow:0 0 0 4px rgba(184,115,51,.16);
}
.brand__name{font-size:19px;font-weight:700;letter-spacing:.18em;color:var(--mist);white-space:nowrap}
.brand__ver{
  padding-left:16px;border-left:1px solid var(--line);
  font-size:12px;letter-spacing:.14em;color:var(--sand);white-space:nowrap;
}
.brand__ver .mono{color:var(--copper-lit)}

.nav-toggle{
  display:none;align-items:center;gap:10px;margin-left:auto;
  padding:9px 14px;border:1px solid var(--line);border-radius:999px;
  color:var(--sand);font-size:12px;letter-spacing:.16em;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--copper);color:var(--copper-lit)}
.nav-toggle__bars{position:relative;width:16px;height:2px;background:currentColor;display:block}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor}
.nav-toggle__bars::before{top:-5px}
.nav-toggle__bars::after{top:5px}

.site-nav{margin-left:auto;display:flex;align-items:center;gap:28px}
.site-nav__list{display:flex;align-items:center;gap:26px}
.site-nav__link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:14px;letter-spacing:.12em;color:var(--sand);
  transition:color .22s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.site-nav__link:hover{color:var(--copper-lit)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--mist)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__cta{flex:none}

/* ---------- 09 索引带 / 左侧竖栏 ---------- */
.index-band{
  display:flex;align-items:center;gap:20px;
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:9px 24px 11px;
  border-top:1px solid var(--line);
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.index-band::-webkit-scrollbar{display:none}
.index-band__caption,
.index-band__hint{
  flex:none;font-size:11px;letter-spacing:.24em;color:var(--steel);white-space:nowrap;
}
.index-band__list{display:flex;align-items:center;gap:18px;flex:none}
.index-band__item{
  display:inline-flex;align-items:baseline;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--sand);white-space:nowrap;
}
.index-band__num{font-size:11px;color:var(--copper)}
.index-band__label{color:var(--sand)}
.index-band__item--anchor{
  padding:4px 12px;border-radius:999px;
  background:rgba(255,158,44,.12);
  border:1px solid rgba(255,158,44,.34);
}
.index-band__item--anchor .index-band__num{color:var(--amber)}
.index-band__link{color:var(--amber);letter-spacing:.14em}
.index-band__link:hover{color:var(--copper-lit);text-decoration:underline;text-underline-offset:3px}

.scroll-progress{
  position:fixed;top:0;left:0;z-index:60;
  width:0;height:2px;
  background:linear-gradient(90deg,var(--copper),var(--amber));
}

/* ---------- 10 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:96px;
  background:var(--abyss);
  border-top:1px solid var(--line);
}
.site-footer__anchor{padding:0}
.stripe-btn{
  display:block;
  padding:18px 24px;
  text-align:center;
  font-size:13px;letter-spacing:.2em;color:var(--amber);
  background-color:var(--ink-2);
  background-image:repeating-linear-gradient(135deg,rgba(255,158,44,.16) 0 10px,rgba(255,158,44,0) 10px 20px);
  border-bottom:1px solid var(--line);
  transition:background-color .24s var(--ease),color .24s var(--ease);
}
.stripe-btn:hover{background-color:rgba(255,158,44,.16);color:var(--mist)}
.stripe-btn__label{display:inline-block}

.site-footer__inner{
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:52px 24px 36px;
  display:grid;
  grid-template-columns:1.25fr .85fr 1.4fr .75fr;
  gap:36px;
}
.site-footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.site-footer__ver{font-size:12px;letter-spacing:.16em;color:var(--copper-lit)}
.site-footer__line{font-size:14px;line-height:1.85;color:var(--sand);max-width:28em}
.site-footer__title{
  margin-bottom:14px;
  font-size:12px;font-weight:500;letter-spacing:.26em;color:var(--steel);
}
.site-footer__list{display:flex;flex-direction:column;gap:9px}
.site-footer__list a{font-size:14px;color:var(--sand);transition:color .22s var(--ease)}
.site-footer__list a:hover{color:var(--copper-lit)}
.site-footer__list a[aria-current="page"]{color:var(--amber)}
.site-footer__row{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;font-size:14px}
.site-footer__key{min-width:44px;font-size:12px;letter-spacing:.16em;color:var(--steel)}
.site-footer__value{color:var(--mist);word-break:break-all}
.copy-btn{
  padding:2px 10px;border:1px solid rgba(255,158,44,.42);border-radius:999px;
  font-size:11px;letter-spacing:.14em;color:var(--amber);
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.copy-btn:hover{background:rgba(255,158,44,.14)}
.copy-btn.is-done{background:var(--amber);border-color:var(--amber);color:#0B1A16}
.site-footer__bar{
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:16px 24px 28px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12px;letter-spacing:.12em;color:var(--steel);
}
.site-footer__bar-note{color:var(--copper)}

.jump-index{
  position:fixed;right:18px;bottom:18px;z-index:56;
  display:inline-flex;align-items:center;
  padding:11px 16px;border-radius:999px;
  background:rgba(11,26,22,.95);
  border:1px solid rgba(255,158,44,.55);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--amber);
  box-shadow:0 12px 28px rgba(0,0,0,.5);
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.jump-index:hover{background:var(--amber);color:#0B1A16;border-color:var(--amber)}

/* ---------- 11 动效协议 ---------- */
html.js [data-reveal]{
  opacity:0;
  transform:translate3d(0,12px,0);
  transition:opacity .38s var(--ease),transform .38s var(--ease);
}
html.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 12 响应式 ---------- */
@media (max-width:1100px){
  .site-footer__inner{grid-template-columns:1.2fr 1fr 1.3fr;gap:32px}
}
@media (max-width:900px){
  body{font-size:16px}
  .section{padding:56px 0}
  .container{padding:0 18px}
  .site-header__inner{padding:12px 18px;gap:14px}
  .index-band{padding:8px 18px 10px;gap:14px}
  .index-band__hint{display:none}

  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:6px 18px 22px;
    background:var(--abyss);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    box-shadow:0 22px 40px rgba(0,0,0,.5);
  }
  .site-nav[data-open]{display:flex}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{display:block;padding:13px 0;border-bottom:1px solid var(--line-soft);font-size:15px}
  .site-nav__link::after{display:none}
  .site-nav__cta{margin-top:18px}

  .grid--2,.grid--3,.grid--split{grid-template-columns:minmax(0,1fr)}
  .site-footer__inner{grid-template-columns:1fr 1fr;gap:30px;padding:42px 18px 30px}
  .site-footer__brand{grid-column:1 / -1}
  .site-footer__bar{padding:14px 18px 26px}
}
@media (max-width:620px){
  .section{padding:44px 0}
  .brand-cluster{gap:10px}
  .brand__name{font-size:17px;letter-spacing:.14em}
  .brand__ver{padding-left:10px;font-size:11px}
  .site-footer__inner{grid-template-columns:1fr}
  .site-footer__line{max-width:none}
  .jump-index{right:12px;bottom:12px;padding:9px 13px;font-size:11px}
  .stat__value{font-size:28px}
}

/* ---------- 13 桌面：索引带收窄为左侧粘性竖栏 ---------- */
@media (min-width:1100px){
  body{padding-left:var(--rail)}
  .scroll-progress{left:var(--rail)}

  .index-band{
    position:fixed;top:0;left:0;bottom:0;z-index:55;
    width:var(--rail);height:100vh;max-width:none;margin:0;
    flex-direction:column;align-items:center;justify-content:flex-start;
    gap:0;padding:20px 0 22px;
    border-top:0;border-right:1px solid var(--line);
    background:linear-gradient(180deg,#0B1A16 0%,#08120F 55%,#060F0D 100%);
    overflow:visible;
  }
  .index-band__caption{
    writing-mode:vertical-rl;
    font-size:11px;letter-spacing:.34em;color:var(--steel);
    padding:6px 0;
  }
  .index-band__list{
    flex-direction:column;align-items:center;gap:15px;
    margin:auto 0;padding:20px 0;
  }
  .index-band__item{flex-direction:column;gap:6px;font-size:11px}
  .index-band__num{font-size:10px;letter-spacing:.04em}
  .index-band__label{writing-mode:vertical-rl;letter-spacing:.24em;font-size:12px}
  .index-band__item--anchor{padding:10px 6px;border-radius:10px}
  .index-band__link{writing-mode:vertical-rl;letter-spacing:.24em;font-size:12px}
}

/* ---------- 14 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;
  }
  html.js [data-reveal]{opacity:1;transform:none}
}