/* =========================================================
   933娱乐 · /assets/site.css
   共享外壳：重置 / 变量 / 中文排版 / 页头 / 页脚 / 通用组件
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink:#0A1220;
  --ink-2:#111C2F;
  --ink-3:#0D1725;
  --grid-line:#22304A;
  --cyan:#00E0D0;
  --violet:#7A5CFF;
  --amber:#F2B24C;
  --paper:#E9EEF6;
  --muted:#93A3B8;
  --press:#D8CCB6;
  --ok:#2F9E77;
  --warn:#C8503F;

  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --serif:"Noto Serif SC",Georgia,"Songti SC","SimSun",serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --max:1280px;
  --gap:24px;
  --shadow-press:8px 8px 0 -1px rgba(216,204,182,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 2. 重置与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 8% -8%, rgba(122,92,255,.16), transparent 62%),
    radial-gradient(920px 460px at 96% 2%, rgba(0,224,208,.10), transparent 60%),
    linear-gradient(180deg,#0A1220 0%,#08101C 100%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--sans);font-weight:800;letter-spacing:-.02em;line-height:1.25;color:var(--paper);margin:0 0 .6em}
p{margin:0 0 1.2em}
ul,ol{padding-left:1.25em}
[hidden]{display:none !important}
::selection{background:var(--violet);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.u-mono{font-family:var(--mono);font-size:13px;letter-spacing:.02em;color:var(--paper)}

/* ---------- 3. 页头 ---------- */
.skip-link{
  position:absolute;left:16px;top:-70px;z-index:80;
  background:var(--cyan);color:#04121A;font-size:14px;font-weight:700;
  padding:10px 16px;transition:top .18s var(--ease);
}
.skip-link:focus{top:12px;text-decoration:none}

.scroll-progress{
  position:fixed;left:0;right:0;top:0;height:3px;z-index:60;
  background:rgba(34,48,74,.55);pointer-events:none;
}
.scroll-progress-bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--violet) 58%,var(--amber) 100%);
  transition:width .12s linear;
}

.site-header{
  position:relative;z-index:40;
  background:linear-gradient(180deg,rgba(17,28,47,.97) 0%,rgba(10,18,32,.94) 100%);
  border-bottom:1px solid var(--grid-line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;opacity:.8;
  background:linear-gradient(90deg,var(--cyan) 0%,rgba(0,224,208,0) 26%,rgba(122,92,255,0) 64%,var(--violet) 100%);
}
.header-inner{max-width:var(--max);margin:0 auto;padding:0 var(--gap)}

.header-top{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px 24px;padding:18px 0 10px;
}
.brand-block{min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--paper);text-decoration:none}
.brand:hover{text-decoration:none}
.brand-dot{
  flex:0 0 auto;width:12px;height:12px;background:var(--cyan);
  box-shadow:0 0 0 1px rgba(0,224,208,.45),0 0 14px rgba(0,224,208,.55);
}
.brand-name{font-size:26px;font-weight:900;letter-spacing:-.03em;line-height:1}
.brand-name em{font-style:normal;color:var(--cyan);margin-left:2px}
.brand-claim{margin:7px 0 0;font-size:12px;letter-spacing:.06em;color:var(--muted)}

.quick-index{display:flex;align-items:stretch;gap:10px;list-style:none;margin:0;padding:0}
.qi{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;
  border:1px solid var(--grid-line);background:rgba(17,28,47,.72);
  color:var(--paper);font-size:13px;line-height:1.2;white-space:nowrap;
  box-shadow:3px 3px 0 -1px rgba(216,204,182,.16);
  transition:border-color .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease);
}
.qi:hover{border-color:var(--cyan);background:rgba(0,224,208,.10);color:#fff;text-decoration:none}
.qi-k{font-family:var(--serif);font-size:11px;letter-spacing:.08em;color:var(--violet)}
.qi-t{letter-spacing:.02em}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:46px;height:40px;padding:0 10px;cursor:pointer;
  background:rgba(17,28,47,.85);border:1px solid var(--grid-line);
}
.toggle-bar{display:block;height:1.5px;width:100%;background:var(--paper);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"]{border-color:var(--cyan)}
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.header-bar{
  display:flex;align-items:center;justify-content:flex-end;
  border-top:1px solid rgba(34,48,74,.8);padding:5px 0 7px;
}
.site-nav{width:100%}
.nav-list{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:2px;list-style:none;margin:0;padding:0}
.nav-list li{display:flex}
.nav-list a{
  display:inline-flex;align-items:center;padding:8px 14px;
  font-size:14px;letter-spacing:.04em;color:var(--muted);text-decoration:none;
  border:1px solid transparent;border-bottom:2px solid transparent;
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.nav-list a:hover{color:var(--paper);background:rgba(122,92,255,.10);border-color:rgba(34,48,74,.9);text-decoration:none}
.nav-list a[aria-current="page"]{
  color:var(--cyan);background:rgba(0,224,208,.08);
  border-color:rgba(0,224,208,.35);border-bottom-color:var(--cyan);text-decoration:none;
}

.header-rail{
  background:rgba(13,23,37,.94);
  border-top:1px solid var(--grid-line);border-bottom:1px solid var(--grid-line);
}
.rail-track{
  display:flex;gap:8px;list-style:none;margin:0;padding:9px 0;
  overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:thin;scrollbar-color:var(--grid-line) transparent;
}
.rail-track::-webkit-scrollbar{height:6px}
.rail-track::-webkit-scrollbar-track{background:transparent}
.rail-track::-webkit-scrollbar-thumb{background:var(--grid-line)}
.rail-track > li{flex:0 0 auto;scroll-snap-align:start}
.rail-item{
  display:inline-flex;align-items:baseline;gap:7px;white-space:nowrap;
  padding:6px 13px 7px;font-size:13px;letter-spacing:.03em;color:var(--muted);
  background:rgba(17,28,47,.5);text-decoration:none;
  border:1px solid var(--grid-line);border-bottom:2px solid transparent;
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.rail-num{font-family:var(--serif);font-size:11px;letter-spacing:.06em;color:var(--violet)}
.rail-item:hover{color:var(--paper);background:rgba(122,92,255,.12);border-color:rgba(122,92,255,.6);text-decoration:none}
.rail-item.is-current{
  color:var(--paper);background:rgba(0,224,208,.10);
  border-color:rgba(0,224,208,.35);border-bottom-color:var(--cyan);
  box-shadow:0 1px 0 0 var(--cyan);
}
.rail-item.is-current .rail-num{color:var(--cyan)}

/* ---------- 4. 页脚 ---------- */
.site-footer{
  position:relative;margin-top:64px;
  background:linear-gradient(180deg,#08101C 0%,#050A12 100%);
  border-top:1px solid var(--grid-line);color:var(--muted);font-size:14px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;opacity:.7;
  background:linear-gradient(90deg,var(--violet) 0%,rgba(122,92,255,0) 55%,var(--cyan) 100%);
}
.footer-inner{max-width:var(--max);margin:0 auto;padding:48px var(--gap) 22px}
.footer-grid{display:grid;grid-template-columns:1.05fr 1.45fr 1fr;gap:36px}
.footer-col{min-width:0}
.footer-brand{
  display:inline-flex;align-items:center;gap:9px;margin:0 0 16px;
  font-size:19px;font-weight:900;letter-spacing:-.02em;color:var(--paper);
}
.footer-title{
  font-size:11.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--paper);margin:0 0 14px;padding-bottom:8px;border-bottom:1px solid var(--grid-line);
}
.footer-links{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 18px;
}
.footer-links a{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent;padding-bottom:1px}
.footer-links a:hover{color:var(--cyan);border-bottom-color:rgba(0,224,208,.55);text-decoration:none}
.footer-meta{list-style:none;margin:0;padding:0}
.footer-meta li{margin-bottom:10px;line-height:1.7}
.footer-note{font-size:12.5px;line-height:1.7;color:var(--muted);margin:14px 0 0}
.footer-rule{
  margin:34px 0 0;padding:10px 14px;font-size:13px;color:var(--paper);
  border:1px solid var(--grid-line);border-left:2px solid var(--amber);
  background:rgba(242,178,76,.06);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--grid-line);
  font-size:12.5px;color:var(--muted);
}
.footer-bottom p{margin:0}

/* ---------- 5. 通用布局组件 ---------- */
.page{display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 var(--gap)}
.section{padding:56px 0}
.section--tight{padding:32px 0}

.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;list-style:none;
  margin:0;padding:18px 0;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);border-bottom:1px solid var(--grid-line);text-decoration:none}
.breadcrumb a:hover{color:var(--cyan);border-bottom-color:rgba(0,224,208,.55)}
.breadcrumb li + li::before{content:"/";margin-right:8px;color:var(--grid-line)}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-9{grid-column:span 9}
.span-12{grid-column:span 12}

.section-head{
  display:flex;align-items:baseline;flex-wrap:wrap;gap:12px 14px;
  padding-bottom:12px;margin-bottom:26px;border-bottom:1px solid var(--grid-line);
}
.chapter-num{
  font-family:var(--serif);font-size:13px;letter-spacing:.18em;color:var(--violet);
  border:1px solid rgba(122,92,255,.5);padding:1px 8px;
}
.section-title{margin:0;font-size:clamp(24px,3.4vw,40px);letter-spacing:-.025em}
.eyebrow{font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin:0}
.lede{font-size:18px;line-height:1.75;color:#C6D2E2;max-width:64ch}

.ticket{
  position:relative;padding:22px 24px;
  background:var(--ink-2);border:1px solid var(--grid-line);box-shadow:var(--shadow-press);
}
.ticket::before{
  content:"";position:absolute;left:-1px;top:-1px;width:10px;height:10px;
  border-top:2px solid var(--cyan);border-left:2px solid var(--cyan);
}
.ticket-tag{
  display:inline-block;margin-bottom:10px;padding:2px 8px;
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
  border:1px solid rgba(0,224,208,.4);background:rgba(0,224,208,.07);
}

.stat-row{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:1px;background:var(--grid-line);border:1px solid var(--grid-line);
}
.stat{background:var(--ink-2);padding:20px 22px}
.stat-num{
  display:block;font-family:var(--serif);font-weight:400;
  font-size:clamp(38px,7vw,88px);line-height:1;letter-spacing:-.03em;color:var(--amber);
}
.stat-unit{font-family:var(--serif);font-size:15px;color:var(--muted);margin-left:6px}
.stat-label{display:block;margin-top:12px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;font-family:var(--sans);font-size:14px;letter-spacing:.03em;
  color:var(--paper);background:var(--ink-2);border:1px solid var(--grid-line);
  text-decoration:none;cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn:hover{text-decoration:none;border-color:#33456A;background:rgba(122,92,255,.12)}
.btn-primary{border-color:rgba(0,224,208,.55);background:rgba(0,224,208,.10);color:#BFFFF8}
.btn-primary:hover{border-color:var(--cyan);background:rgba(0,224,208,.18)}
.btn-ghost{background:transparent;color:var(--muted)}
.btn-amber{border-color:rgba(242,178,76,.55);background:rgba(242,178,76,.09);color:var(--amber)}
.btn-amber:hover{border-color:var(--amber);background:rgba(242,178,76,.16)}

.media-frame{
  position:relative;display:block;width:100%;aspect-ratio:16/10;overflow:hidden;
  border:1px solid var(--grid-line);
  background:linear-gradient(135deg,#111C2F 0%,#0A1220 100%);
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06)}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(0,224,208,.10);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-caption{display:block;margin-top:10px;font-size:12.5px;letter-spacing:.02em;color:var(--muted)}

.tabs{
  display:flex;gap:6px;overflow-x:auto;
  border-bottom:1px solid var(--grid-line);margin-bottom:22px;
}
.tab{
  appearance:none;background:transparent;cursor:pointer;
  padding:9px 14px;font-family:var(--sans);font-size:14px;letter-spacing:.03em;
  color:var(--muted);border:1px solid transparent;border-bottom:2px solid transparent;
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.tab:hover{color:var(--paper);background:rgba(122,92,255,.10)}
.tab[aria-selected="true"]{
  color:var(--paper);background:rgba(0,224,208,.08);
  border-bottom-color:var(--cyan);border-color:rgba(0,224,208,.28);
}
.tabpanel{padding:2px 0 8px;animation:panelIn .22s var(--ease)}
@keyframes panelIn{from{opacity:.4;transform:translateX(12px)}to{opacity:1;transform:none}}

.table-tools{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:14px}
.filter-chip{
  appearance:none;cursor:pointer;padding:6px 12px;font-family:var(--sans);font-size:13px;
  color:var(--muted);background:var(--ink-2);border:1px solid var(--grid-line);
  transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.filter-chip:hover{color:var(--paper);border-color:#33456A}
.filter-chip[aria-pressed="true"]{color:var(--paper);border-color:var(--cyan);background:rgba(0,224,208,.10)}
.filter-count{margin:0 0 0 auto;font-family:var(--serif);font-size:13px;color:var(--muted)}

.compare-table{width:100%;border-collapse:collapse;font-size:14px;background:var(--ink-2);border:1px solid var(--grid-line)}
.compare-table caption{text-align:left;padding:10px 12px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.compare-table th{
  text-align:left;padding:10px 12px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);background:var(--ink-3);border-bottom:1px solid var(--grid-line);
}
.compare-table td{padding:10px 12px;border-bottom:1px solid var(--grid-line);color:var(--paper)}
.compare-table tbody tr:hover{background:rgba(122,92,255,.07)}
.compare-table .num{font-family:var(--serif);color:var(--amber);letter-spacing:.01em}

.timeline{position:relative;margin:0;padding:0 0 0 28px;list-style:none}
.timeline::before{
  content:"";position:absolute;left:6px;top:4px;bottom:0;width:1px;
  background:linear-gradient(180deg,var(--cyan) 0%,var(--violet) 55%,rgba(122,92,255,0) 100%);
}
.tl-item{position:relative;padding:0 0 26px}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:9px;width:9px;height:9px;
  background:var(--ink);border:1px solid var(--cyan);transform:rotate(45deg);
}
.tl-time{display:block;font-family:var(--serif);font-size:13px;letter-spacing:.06em;color:var(--muted)}
.tl-title{margin:2px 0 6px;font-size:18px;letter-spacing:-.01em;color:var(--paper)}
.tl-body{margin:0;color:#C6D2E2;font-size:15px}

.float-panel{
  position:sticky;top:24px;
  background:var(--ink-2);border:1px solid var(--grid-line);box-shadow:var(--shadow-press);
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 16px;border-bottom:1px solid var(--grid-line);background:var(--ink-3);
}
.panel-body{padding:16px}
.panel-tag{
  display:inline-block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--violet);border:1px solid rgba(122,92,255,.45);padding:1px 7px;
}
.float-panel[data-collapsed] .panel-body{display:none}

html.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
html.js .reveal.is-visible{opacity:1;transform:none}

.to-top{
  position:fixed;right:20px;bottom:22px;z-index:50;display:none;align-items:center;gap:8px;
  padding:10px 14px;font-family:var(--sans);font-size:13px;cursor:pointer;
  color:var(--paper);background:rgba(17,28,47,.94);border:1px solid var(--grid-line);
  box-shadow:var(--shadow-press);
}
.to-top.is-visible{display:inline-flex}
.to-top:hover{border-color:var(--cyan);color:#fff}

/* ---------- 6. 响应式 ---------- */
@media (max-width:1280px){
  .quick-index{gap:8px}
  .qi{padding:7px 11px;font-size:12.5px}
  .footer-grid{gap:28px}
}

@media (max-width:960px){
  body{font-size:16px}
  .header-top{flex-wrap:wrap;align-items:center;padding:14px 0 8px}
  .brand-block{flex:1 1 auto}
  .nav-toggle{display:flex}
  .quick-index{order:3;flex:1 1 100%;overflow-x:auto;padding-bottom:4px}
  .header-bar{display:none;justify-content:flex-start;border-top:0;padding:0 0 12px}
  .site-header[data-open] .header-bar{display:block;border-top:1px solid var(--grid-line);padding-top:8px}
  .nav-list{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0}
  .nav-list a{width:100%;padding:12px 10px;border-bottom:1px solid var(--grid-line);border-left:2px solid transparent}
  .nav-list a[aria-current="page"]{border-left-color:var(--cyan);border-bottom-color:var(--grid-line)}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9{grid-column:span 12}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col:first-child{grid-column:span 2}
  .float-panel{position:static;top:auto}
}

@media (max-width:640px){
  :root{--gap:16px}
  body{font-size:15.5px;line-height:1.75}
  .brand-name{font-size:22px}
  .brand-claim{font-size:11.5px;letter-spacing:.04em}
  .section{padding:36px 0}
  .section-title{font-size:24px}
  .lede{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-col:first-child{grid-column:span 1}
  .footer-links{grid-template-columns:1fr 1fr}
  .footer-inner{padding:36px var(--gap) 20px}
  .footer-bottom{flex-direction:column}
  .rail-item{font-size:12.5px}
  .stat-num{font-size:clamp(34px,13vw,56px)}
  .to-top{right:12px;bottom:14px;padding:9px 12px;font-size:12px}
  .filter-count{margin-left:0}
}

/* ---------- 7. 动效降级 ---------- */
@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 .reveal{opacity:1;transform:none}
  .scroll-progress-bar{transition:none}
}