/* =========================================================
   皇冠国际官方娱乐 · 共享样式表 /assets/site.css
   墨夜黑 × 皇冠金 · 锐利直角 · 精密网格 · 展览标签
   ========================================================= */

:root{
  --ink:#0A0A0C;
  --ink-2:#141519;
  --ink-3:#171922;
  --line:#23252B;
  --line-2:#3A3D45;
  --gold:#C9A227;
  --gold-lite:#E8CE86;
  --amber:#D98324;
  --amber-lite:#E9B071;
  --ruby:#9E1B32;
  --ruby-lite:#E0A0AC;
  --silver:#A8AFBA;
  --paper:#F4F1E8;
  --green:#3F8F6B;
  --green-lite:#7FC0A0;
  --rail-w:264px;
  --topbar-h:48px;
  --maxw:1240px;
  --gutter:clamp(18px,3vw,40px);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.65,.25,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
svg{height:auto}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{width:100%;border-collapse:collapse}
:focus-visible{outline:2px solid var(--gold-lite);outline-offset:3px}
::selection{background:var(--gold);color:#14110A}

/* ---------- 基础排版（中文） ---------- */
body{
  min-height:100vh;
  background:var(--ink);
  color:rgba(244,241,232,.86);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.26;color:var(--paper);letter-spacing:.01em}
h1{font-size:clamp(30px,4vw,48px)}
h2{font-size:clamp(24px,2.6vw,32px)}
h3{font-size:clamp(18px,1.6vw,20px)}
h4{font-size:17px}
p{overflow-wrap:break-word}
#main-content{display:block}

/* ---------- 跳至正文 ---------- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:10px 16px;
  background:var(--gold);color:#14110A;
  font:600 14px/1 var(--sans);letter-spacing:.06em;
  transform:translateY(-220%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 头部框架 ---------- */
.site-header{position:relative;z-index:60}
.rail{
  position:fixed;top:0;bottom:0;left:0;
  z-index:90;
  width:var(--rail-w);
  display:flex;flex-direction:column;gap:20px;
  padding:26px 20px 22px;
  background:var(--ink-2);
  border-right:1px solid var(--line);
  overflow-y:auto;overscroll-behavior:contain;
}
.rail::after{
  content:"";position:absolute;top:0;right:-1px;width:1px;height:150px;
  background:linear-gradient(180deg,var(--gold),rgba(201,162,39,0));
}
.rail__brand{border-bottom:1px solid var(--line);padding-bottom:18px}
.brand{display:flex;align-items:center;gap:12px}
.brand__mark{display:block;line-height:0;color:var(--gold);flex:0 0 auto}
.brand__text{display:block;min-width:0}
.brand__line{
  display:block;font-family:var(--serif);font-size:18px;font-weight:600;
  letter-spacing:.06em;line-height:1.3;color:var(--paper);
  transition:color .18s var(--ease);
}
.brand__sub{display:block;margin-top:5px;font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--silver)}
.brand:hover .brand__line{color:var(--gold-lite)}
.rail__nav{flex:1 1 auto}
.nav-list{display:grid;gap:2px}
.nav-item{display:block}
.nav-link{
  position:relative;display:flex;align-items:baseline;gap:14px;
  padding:11px 12px 11px 12px;
  border-left:2px solid transparent;
  color:var(--silver);font-size:15.5px;line-height:1.4;
}
.nav-link__idx{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--line-2);transition:color .18s var(--ease)}
.nav-link__label{display:block}
.nav-link:hover{color:var(--gold-lite);border-left-color:var(--gold-lite);background:rgba(201,162,39,.06)}
.nav-link:hover .nav-link__idx{color:var(--gold-lite)}
.nav-link[aria-current="page"]{color:var(--gold-lite);border-left-color:var(--gold);background:rgba(201,162,39,.09)}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--gold)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;right:12px;top:50%;width:6px;height:6px;margin-top:-3px;background:var(--gold);
}
.rail__foot{display:grid;gap:12px;border-top:1px solid var(--line);padding-top:18px}
.version-badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:5px 9px;line-height:1;
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  color:var(--gold-lite);
  border:1px solid rgba(201,162,39,.42);
  background:rgba(201,162,39,.07);
}
.version-badge--plain{color:var(--silver);border-color:var(--line);background:transparent}

/* ---------- 顶部状态条 ---------- */
.topbar{
  position:sticky;top:0;z-index:95;
  background:rgba(10,10,12,.9);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.topbar__inner{
  display:flex;align-items:center;gap:16px;
  min-height:var(--topbar-h);
  padding:0 var(--gutter);
}
.topbar__kicker{
  margin:0;min-width:0;
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--silver);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.utility{display:flex;align-items:center;margin-left:auto}
.utility__item{display:flex}
.utility__link{
  position:relative;display:block;
  padding:7px 14px;
  font-size:13.5px;color:var(--silver);
  border-left:1px solid var(--line);
}
.utility__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:1px;
  background:var(--gold-lite);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .2s var(--ease);
}
.utility__link:hover{color:var(--gold-lite)}
.utility__link:hover::after{transform:scaleX(1)}
.topbar__progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.topbar__progress-bar{
  display:block;width:100%;height:100%;
  background:linear-gradient(90deg,var(--gold),var(--gold-lite));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .12s linear;
}
.nav-toggle{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 12px;
  border:1px solid var(--line);color:var(--paper);
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold-lite)}
.nav-toggle__bars{
  display:block;width:16px;height:11px;
  background-image:linear-gradient(var(--gold-lite),var(--gold-lite)),
                   linear-gradient(var(--gold-lite),var(--gold-lite)),
                   linear-gradient(var(--gold-lite),var(--gold-lite));
  background-repeat:no-repeat;
  background-size:100% 1px,100% 1px,100% 1px;
  background-position:top left,center left,bottom left;
}
.nav-toggle__text{display:block}
.rail-scrim{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;
  border:1px solid var(--line);background:transparent;color:var(--paper);
  font-family:var(--sans);font-size:14px;font-weight:500;letter-spacing:.08em;line-height:1;
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.btn:hover{border-color:var(--gold);color:var(--gold-lite);background:rgba(201,162,39,.08)}
.btn--gold{background:var(--gold);border-color:var(--gold);color:#14110A;font-weight:600}
.btn--gold:hover{background:var(--gold-lite);border-color:var(--gold-lite);color:#14110A}
.btn--ghost{color:var(--silver)}
.btn--block{width:100%}

/* ---------- 状态标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 9px;line-height:1.4;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;
  border:1px solid var(--line);color:var(--silver);background:rgba(35,37,43,.5);
}
.tag::before{content:"";width:5px;height:5px;background:currentColor;flex:0 0 auto}
.tag--ok{color:var(--green-lite);border-color:rgba(63,143,107,.55);background:rgba(63,143,107,.12)}
.tag--wip{color:var(--amber-lite);border-color:rgba(217,131,36,.55);background:rgba(217,131,36,.12)}
.tag--chg{color:var(--ruby-lite);border-color:rgba(158,27,50,.7);background:rgba(158,27,50,.16)}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:0 0 clamp(18px,2vw,28px)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--silver)}
.breadcrumb__item{display:flex;align-items:center;gap:10px}
.breadcrumb__sep{color:var(--line-2)}
.breadcrumb__link{color:var(--silver)}
.breadcrumb__link:hover{color:var(--gold-lite);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--gold-lite)}

/* ---------- 布局容器与网格 ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.grid{display:grid;gap:clamp(18px,2.4vw,28px)}
.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(0,7fr) minmax(0,3fr);align-items:start}
.hairline{width:100%;height:1px;border:0;background:var(--line)}
.hairline--gold{background:linear-gradient(90deg,var(--gold),rgba(201,162,39,0))}

/* ---------- 文本块 ---------- */
.eyebrow{display:inline-block;font-family:var(--mono);font-size:11.5px;letter-spacing:.22em;color:var(--gold);text-transform:uppercase}
.lede{max-width:56ch;font-size:clamp(17px,1.6vw,20px);line-height:1.7;color:rgba(244,241,232,.92)}
.num{font-family:var(--mono);font-size:20px;font-weight:500;letter-spacing:.04em;line-height:1;color:var(--gold)}
.num--xl{font-size:clamp(40px,7vw,72px);letter-spacing:-.02em;line-height:.9}
.prose{max-width:68ch;font-size:17px;color:rgba(244,241,232,.84)}
.prose>*+*{margin-top:1.05em}
.prose h2{margin-top:2.2em;font-size:clamp(22px,2.2vw,28px)}
.prose h3{margin-top:1.8em;font-size:19px}
.prose strong{color:var(--paper);font-weight:600}
.prose a{color:var(--gold);border-bottom:1px solid rgba(201,162,39,.42)}
.prose a:hover{color:var(--gold-lite);border-bottom-color:var(--gold-lite)}
.prose ul,.prose ol{display:grid;gap:.5em;margin-top:1em}
.prose li{position:relative;padding-left:1.1em}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:7px;height:1px;background:var(--gold)}
.prose ol{counter-reset:p}
.prose ol li{counter-increment:p;padding-left:1.9em}
.prose ol li::before{
  content:counter(p,decimal-leading-zero);top:0;left:0;width:auto;height:auto;background:none;
  font-family:var(--mono);font-size:12px;color:var(--gold);
}

/* ---------- 卡片 ---------- */
.card{
  background:var(--ink-2);border:1px solid var(--line);
  padding:clamp(18px,2vw,26px);
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.card:hover{border-color:var(--gold);background:var(--ink-3)}
.card__head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}
.card__title{font-family:var(--serif);font-size:19px;font-weight:600;color:var(--paper);line-height:1.4}
.card__text{font-size:15.5px;color:var(--silver)}
.card__meta{font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--line-2)}

/* ---------- 定义列表与表格 ---------- */
.deflist{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.deflist__row{display:grid;grid-template-columns:minmax(140px,3fr) 7fr;gap:16px;padding:14px 18px;background:var(--ink-2)}
.deflist__term{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;color:var(--gold-lite);line-height:1.7}
.deflist__desc{font-size:15.5px;color:rgba(244,241,232,.82)}
.table-wrap{width:100%;overflow-x:auto}
.table{border:1px solid var(--line);font-size:15px;min-width:520px}
.table th,.table td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.table th{font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.14em;color:var(--gold-lite);background:var(--ink-2)}
.table td{color:rgba(244,241,232,.82)}
.table tr:last-child td{border-bottom:0}

/* ---------- 图片容器基础规则 ---------- */
.media{display:block;margin:0}
.media__frame{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--ink-2),#0E0F13);
  border:1px solid var(--line);
}
.media__frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(201,162,39,.07),rgba(201,162,39,0) 62%),
             repeating-linear-gradient(0deg,rgba(168,175,186,.06) 0 1px,rgba(168,175,186,0) 1px 26px);
}
.media__img,.media__frame img{display:block;width:100%;height:100%;object-fit:cover}
.media--16x9 .media__frame{aspect-ratio:16/9}
.media--4x3 .media__frame{aspect-ratio:4/3}
.media--1x1 .media__frame{aspect-ratio:1/1}
.media__placeholder{
  display:flex;align-items:center;justify-content:center;min-height:180px;height:100%;
  font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:rgba(168,175,186,.55);
}
.media__caption{margin-top:10px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--silver)}

/* ---------- 显影与动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(10px);transition:opacity .24s var(--ease),transform .24s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}
[data-reveal] .num{color:rgba(232,206,134,.3);transition:color .24s var(--ease)}
[data-reveal].is-visible .num{color:var(--gold)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,110px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--ink) 0%,#0C0D11 100%);
}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;width:150px;height:1px;background:var(--gold)}
.footer__crest{
  height:64px;
  background:linear-gradient(90deg,rgba(201,162,39,.16),rgba(201,162,39,.03) 52%,rgba(244,241,232,.02));
  -webkit-clip-path:polygon(0% 100%,0% 66%,5% 58%,11% 70%,18% 50%,25% 64%,32% 42%,39% 62%,47% 32%,54% 58%,61% 40%,69% 60%,76% 46%,83% 66%,90% 52%,96% 68%,100% 58%,100% 100%);
  clip-path:polygon(0% 100%,0% 66%,5% 58%,11% 70%,18% 50%,25% 64%,32% 42%,39% 62%,47% 32%,54% 58%,61% 40%,69% 60%,76% 46%,83% 66%,90% 52%,96% 68%,100% 58%,100% 100%);
}
.footer__inner{
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(34px,4.5vw,58px) var(--gutter) clamp(26px,3vw,40px);
  display:grid;grid-template-columns:minmax(240px,4fr) 8fr;gap:clamp(28px,4vw,56px);
}
.footer__brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.footer__brandline{font-family:var(--serif);font-size:22px;font-weight:600;letter-spacing:.08em;color:var(--paper);line-height:1.3}
.footer__sub{font-family:var(--mono);font-size:11.5px;letter-spacing:.18em;color:var(--gold)}
.footer__note{max-width:34ch;font-size:15px;color:var(--silver)}
.footer__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.footer__cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,2.4vw,32px)}
.footer__col{min-width:0}
.footer__col-title{
  margin-bottom:16px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:11.5px;font-weight:500;letter-spacing:.2em;color:var(--paper);
}
.footer__list{display:grid;gap:10px}
.footer__link{position:relative;display:inline-block;font-size:14.5px;color:var(--silver)}
.footer__link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:var(--gold-lite);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .2s var(--ease);
}
.footer__link:hover{color:var(--gold-lite)}
.footer__link:hover::after{transform:scaleX(1)}
.footer__meta{
  max-width:var(--maxw);margin:0 auto;
  padding:22px var(--gutter) 34px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 28px;
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--silver);
}
.footer__meta-item{margin:0}
.footer__legal{color:var(--gold-lite)}
.footer__copyright{color:var(--silver)}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
  .nav-toggle{display:none}
  .rail-scrim{display:none}
}

@media (max-width:1023px){
  .rail{
    width:min(86vw,320px);
    padding-top:66px;
    transform:translateX(-102%);
    transition:transform .26s var(--ease);
    background:var(--ink-2);
  }
  .site-header[data-open] .rail{
    transform:translateX(0);
    box-shadow:0 0 0 1px rgba(201,162,39,.28),34px 0 70px rgba(0,0,0,.62);
  }
  .rail-scrim{
    display:block;position:fixed;inset:0;z-index:85;
    background:rgba(5,5,7,.72);
    opacity:0;visibility:hidden;
    transition:opacity .2s var(--ease),visibility .2s var(--ease);
  }
  .site-header[data-open] .rail-scrim{opacity:1;visibility:visible}
  .site-header[data-open] .nav-toggle{border-color:var(--gold);color:var(--gold-lite)}
  .utility{display:none}
  body.has-nav-open{overflow:hidden}
}

@media (max-width:960px){
  .grid--split{grid-template-columns:minmax(0,1fr)}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--2{grid-template-columns:minmax(0,1fr)}
  .footer__inner{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:760px){
  body{font-size:16.5px}
  .footer__cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px}
}

@media (max-width:640px){
  .topbar__kicker{display:none}
  .grid--3{grid-template-columns:minmax(0,1fr)}
  .deflist__row{grid-template-columns:minmax(0,1fr);gap:6px}
  .footer__cols{grid-template-columns:minmax(0,1fr)}
  .footer__meta{font-size:11.5px;gap:6px 18px}
}

@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  html{scroll-behavior:auto}
  [data-reveal],[data-reveal].is-visible{opacity:1 !important;transform:none !important}
  [data-reveal] .num{color:var(--gold)}
}