/* 真人百家家乐 · 共享样式表 /assets/site.css */

/* 1. 令牌与重置 */
:root{
  --ink:#0B0D10;
  --panel:#15181D;
  --slate:#2A3038;
  --gold:#C9A24B;
  --gold-bright:#E7C873;
  --red:#D2453A;
  --ivory:#F2EBDD;
  --cream:#F6F1E7;
  --umber:#6B5A3E;
  --blue:#5C7A8A;
  --ivory-dim:rgba(242,235,221,.68);
  --ivory-mute:rgba(242,235,221,.5);
  --line:rgba(201,162,75,.42);
  --line-soft:rgba(242,235,221,.12);
  --font-sans:"Helvetica Neue",-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --w:1200px;
  --pad:24px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img,picture,video,svg{max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;}
table{border-collapse:collapse;width:100%;}
[hidden]{display:none !important;}
:focus-visible{outline:2px solid var(--gold-bright);outline-offset:3px;}

/* 2. 基础排版 */
body{
  background-color:var(--ink);
  background-image:
    linear-gradient(180deg,rgba(42,48,56,.62),rgba(11,13,16,0) 460px),
    repeating-linear-gradient(180deg,rgba(242,235,221,.03) 0 1px,transparent 1px 72px);
  background-repeat:no-repeat,repeat;
  color:var(--ivory);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:800;font-stretch:condensed;letter-spacing:-.02em;line-height:1.24;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--gold-bright);}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;}

/* 3. 容器与区块 */
.container{width:100%;max-width:var(--w);margin-inline:auto;padding-inline:var(--pad);}
.section{padding-block:52px;}
.section__head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:14px;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:26px;}
.section__title{font-size:clamp(24px,3.2vw,38px);}
.eyebrow{display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);}
.lead{font-size:clamp(17px,1.5vw,20px);line-height:1.85;color:var(--ivory);}
.note{font-size:13px;line-height:1.8;color:var(--ivory-mute);}
.note--blue{color:var(--blue);}

/* 4. 页头 · 命令栏 */
.skip-link{position:absolute;left:12px;top:-70px;z-index:130;background:var(--gold);color:var(--ink);font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;padding:10px 14px;border:2px solid var(--ink);transition:top .16s var(--ease);}
.skip-link:focus{top:10px;}
.cmdbar{position:sticky;top:0;z-index:90;background:var(--ink);border-bottom:2px solid var(--gold);box-shadow:0 10px 26px rgba(0,0,0,.6);}
.cmdbar__inner{display:grid;grid-template-columns:minmax(210px,auto) 1fr auto;align-items:center;gap:18px;min-height:70px;padding-block:10px;}
.cmdbar__brand{min-width:0;}
.brand-mark{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:12px;align-items:center;}
.brand-mark__idx{grid-row:span 2;display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border:2px solid var(--gold);background:linear-gradient(135deg,rgba(201,162,75,.2),transparent);color:var(--gold-bright);font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;}
.brand-mark__name{font-family:var(--font-sans);font-size:20px;font-weight:800;font-stretch:condensed;letter-spacing:-.01em;line-height:1.25;color:var(--ivory);transition:color .16s var(--ease);}
.brand-mark__line{font-size:11px;letter-spacing:.16em;color:var(--gold);}
.brand-mark:hover .brand-mark__name{color:var(--gold-bright);}
.cmdbar__nav{position:relative;}
.nav-list{display:flex;flex-wrap:wrap;align-items:center;gap:2px;}
.nav-list__item{flex:0 0 auto;}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:7px;padding:9px 12px;color:var(--ivory-dim);font-size:15px;font-weight:600;line-height:1.4;transition:color .16s var(--ease),background .16s var(--ease);}
.nav-link__idx{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;color:var(--gold);}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--gold-bright);transform:scaleX(0);transform-origin:left center;transition:transform .28s var(--ease);}
.nav-link:hover,.nav-link:focus-visible{color:var(--ivory);}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:var(--gold-bright);background:rgba(201,162,75,.12);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--gold);}
.cmdbar__tools{display:flex;align-items:center;gap:10px;justify-self:end;}
.icon-btn{display:inline-flex;align-items:center;gap:8px;background:transparent;border:2px solid var(--blue);color:var(--ivory);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;padding:9px 12px;cursor:pointer;transition:border-color .16s var(--ease),color .16s var(--ease),box-shadow .16s var(--ease);}
.icon-btn:hover{border-color:var(--gold);color:var(--gold-bright);box-shadow:3px 3px 0 rgba(0,0,0,.6);}
.version-chip{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-soft);padding:8px 10px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--ivory-mute);white-space:nowrap;}
.version-chip .mono{color:var(--gold);}
.version-chip__dot{width:8px;height:8px;background:var(--blue);box-shadow:0 0 0 3px rgba(92,122,138,.22);animation:pulse 2.6s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}
.nav-toggle{display:none;align-items:center;gap:8px;background:transparent;border:2px solid var(--gold);color:var(--gold-bright);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;padding:9px 12px;cursor:pointer;transition:background .16s var(--ease);}
.nav-toggle:hover{background:rgba(201,162,75,.14);}
.nav-toggle__bars{position:relative;display:inline-block;width:16px;height:10px;border-top:2px solid currentColor;border-bottom:2px solid currentColor;}
.nav-toggle__bars::after{content:"";position:absolute;left:0;right:0;top:50%;height:2px;background:currentColor;transform:translateY(-50%);}
.nav-toggle__text{text-transform:uppercase;}
.cmdbar__progress{position:absolute;left:0;bottom:2px;width:100%;height:2px;background:linear-gradient(90deg,var(--gold),var(--gold-bright));transform:scaleX(0);transform-origin:left center;transition:transform .1s linear;pointer-events:none;}
.idx-panel{position:absolute;left:0;right:0;top:100%;background:var(--panel);border-bottom:2px solid var(--gold);box-shadow:0 22px 44px rgba(0,0,0,.7);}
.idx-panel__inner{display:grid;grid-template-columns:minmax(240px,320px) 1fr;gap:22px;padding-block:22px;align-items:start;}
.idx-field{display:block;border:2px solid var(--blue);background:rgba(92,122,138,.08);padding:12px 14px;}
.idx-field__label{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--blue);margin-bottom:6px;}
.idx-input{width:100%;background:transparent;border:0;border-bottom:1px solid var(--line);color:var(--ivory);font-size:15px;padding:6px 0;}
.idx-input::placeholder{color:rgba(242,235,221,.35);}
.idx-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;}
.idx-item[hidden]{display:none;}
.idx-link{display:flex;align-items:baseline;gap:10px;border:1px solid var(--line-soft);padding:11px 12px;font-size:15px;color:var(--ivory-dim);transition:border-color .16s var(--ease),color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);}
.idx-link__idx{font-family:var(--font-mono);font-size:11px;color:var(--gold);}
.idx-link:hover{border-color:var(--gold);color:var(--ivory);transform:translate(-2px,-2px);box-shadow:3px 3px 0 rgba(0,0,0,.55);}
.idx-note{grid-column:1/-1;font-size:13px;color:var(--ivory-mute);}

/* 5. 页脚 */
.site-foot{position:relative;margin-top:64px;background:var(--panel);border-top:2px solid var(--gold);color:var(--ivory-dim);}
.site-foot::before{content:"";display:block;height:8px;background:repeating-linear-gradient(90deg,var(--gold) 0 2px,transparent 2px 14px);opacity:.35;}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(3,minmax(140px,1fr));gap:32px;padding-block:52px 34px;}
.foot-brand__seal{display:inline-block;border:2px solid var(--red);color:var(--red);font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;padding:6px 10px;transform:rotate(-2deg);margin-bottom:14px;}
.foot-brand__name{font-family:var(--font-sans);font-size:24px;font-weight:800;font-stretch:condensed;letter-spacing:-.01em;line-height:1.3;color:var(--ivory);}
.foot-brand__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--gold);margin-top:6px;}
.foot-brand__note{margin-top:14px;max-width:34ch;font-size:14px;line-height:1.85;color:var(--ivory-mute);}
.foot-col__title{font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);padding-bottom:8px;border-bottom:1px solid var(--line);margin-bottom:10px;}
.foot-links{display:grid;gap:2px;}
.foot-link{display:inline-block;padding:5px 0;font-size:15px;color:var(--ivory-dim);transition:color .16s var(--ease),transform .16s var(--ease);}
.foot-link:hover{color:var(--gold-bright);transform:translateX(4px);}
.foot-legal{display:grid;gap:8px;border-top:1px solid var(--line-soft);padding-block:22px 46px;font-size:13px;color:var(--ivory-mute);}
.legal-line{font-family:var(--font-mono);letter-spacing:.08em;color:var(--gold);}
.foot-contact{font-size:14px;color:var(--ivory-dim);}
.foot-note{color:var(--ivory-mute);}
.foot-copy{color:rgba(242,235,221,.4);}
.to-top{position:fixed;right:20px;bottom:20px;z-index:95;display:inline-flex;align-items:center;gap:8px;background:var(--gold);color:var(--ink);border:2px solid var(--ink);box-shadow:4px 4px 0 var(--red);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;padding:11px 14px;cursor:pointer;transition:transform .16s var(--ease),box-shadow .16s var(--ease);}
.to-top:hover{transform:translate(4px,4px);box-shadow:-4px -4px 0 var(--red);}

/* 6. 按钮、标签、面包屑 */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;padding:12px 18px;border:2px solid var(--gold);background:transparent;color:var(--gold-bright);cursor:pointer;transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),color .16s var(--ease);}
.btn--gold{background:var(--gold);color:var(--ink);box-shadow:4px 4px 0 rgba(92,122,138,.75);}
.btn--gold:hover{transform:translate(4px,4px);box-shadow:-4px -4px 0 rgba(231,200,115,.6);}
.btn--ghost:hover{background:rgba(201,162,75,.14);transform:translate(-2px,-2px);box-shadow:4px 4px 0 rgba(0,0,0,.55);}
.btn--cream{background:var(--cream);color:#1A1712;border-color:#1A1712;box-shadow:4px 4px 0 var(--gold);}
.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:4px 8px;border:1px solid var(--line);color:var(--gold-bright);}
.tag--red{border-color:var(--red);color:var(--red);}
.tag--blue{border-color:var(--blue);color:var(--blue);}
.tag--gold{background:var(--gold);border-color:var(--gold);color:var(--ink);}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-block:18px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--ivory-mute);}
.crumbs__item{display:inline-flex;align-items:center;gap:10px;}
.crumbs__item:not(:last-child)::after{content:"/";color:var(--gold);}
.crumbs__link{color:inherit;transition:color .16s var(--ease);}
.crumbs__link:hover{color:var(--gold-bright);}
.crumbs__item[aria-current="page"]{color:var(--ivory);}

/* 7. 栅格、卡片、正文 */
.grid{display:grid;gap:20px;}
.grid--12{grid-template-columns:repeat(12,1fr);}
.col-8{grid-column:span 8;}
.col-4{grid-column:span 4;}
.col-6{grid-column:span 6;}
.card{background:var(--panel);border:2px solid rgba(201,162,75,.45);box-shadow:4px 4px 0 rgba(0,0,0,.6);padding:20px;transition:box-shadow .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);}
.card:hover{transform:translate(2px,2px);box-shadow:-4px -4px 0 rgba(201,162,75,.5);border-color:var(--gold);}
.card--cream{background:var(--cream);color:#1A1712;border-color:#1A1712;box-shadow:4px 4px 0 rgba(201,162,75,.75);}
.surface--cream{background:var(--cream);color:#1A1712;border:2px solid #1A1712;box-shadow:4px 4px 0 var(--gold);padding:24px;}
.surface--cream .note,.surface--cream .foot-note{color:var(--umber);}
.prose{max-width:72ch;font-size:17px;line-height:1.95;color:var(--ivory);}
.prose p{margin-bottom:1.15em;}
.prose h2{font-size:clamp(22px,2.6vw,30px);margin:1.8em 0 .7em;}
.prose h3{font-size:19px;font-weight:700;color:var(--gold-bright);margin:1.5em 0 .6em;}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.3em;list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin-bottom:.5em;}
.prose a{border-bottom:1px solid var(--gold);color:var(--gold-bright);}
.prose strong{color:var(--gold-bright);}
.prose code{font-family:var(--font-mono);font-size:.92em;background:rgba(201,162,75,.12);color:var(--gold-bright);padding:1px 5px;}

/* 8. 图片容器（页面阶段放置占位图，不在共享外壳内放图） */
.media-frame{position:relative;display:block;overflow:hidden;border:2px solid rgba(201,162,75,.45);background:linear-gradient(135deg,var(--slate),#0E1116 72%);box-shadow:4px 4px 0 rgba(0,0,0,.6);}
.media-frame>img,.media-frame>picture>img,.media-frame>video{display:block;width:100%;height:100%;object-fit:cover;}
.media-frame--wide{aspect-ratio:16/9;}
.media-frame--tall{aspect-ratio:3/4;}
.media-frame--square{aspect-ratio:1/1;}
.media-frame__caption{position:absolute;left:0;right:0;bottom:0;background:rgba(11,13,16,.84);border-top:1px solid var(--line);color:var(--ivory);font-family:var(--font-mono);font-size:12px;padding:8px 10px;}
.media-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}

/* 9. 数据表 */
.table-wrap{overflow-x:auto;border:2px solid rgba(201,162,75,.4);box-shadow:4px 4px 0 rgba(0,0,0,.55);}
.data-table{background:var(--panel);font-size:15px;min-width:520px;}
.data-table th,.data-table td{border-bottom:1px solid var(--line-soft);padding:12px 14px;text-align:left;vertical-align:top;}
.data-table thead th{background:rgba(201,162,75,.12);color:var(--gold-bright);font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;}
.data-table tbody tr{transition:background .16s var(--ease);}
.data-table tbody tr:hover{background:rgba(92,122,138,.18);}
.data-table .col-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap;}
.data-table--cream{background:var(--cream);color:#1A1712;}
.data-table--cream thead th{background:rgba(107,90,62,.16);color:#3A2F1C;}
.data-table--cream th,.data-table--cream td{border-bottom-color:rgba(107,90,62,.28);}

/* 10. 时间轴与折叠块 */
.timeline{position:relative;padding-left:26px;border-left:2px solid rgba(201,162,75,.35);}
.timeline__item{position:relative;padding-bottom:24px;}
.timeline__item:last-child{padding-bottom:0;}
.timeline__node{position:absolute;left:-34px;top:9px;width:12px;height:12px;background:var(--ink);border:2px solid var(--gold);transition:background .2s var(--ease);}
.timeline__item.is-in .timeline__node{background:var(--gold-bright);}
.timeline__time{display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--gold);}
.fold{border:2px solid rgba(201,162,75,.4);background:var(--panel);box-shadow:4px 4px 0 rgba(0,0,0,.55);margin-bottom:14px;}
.fold__head{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;background:transparent;border:0;color:var(--ivory);padding:16px 18px;text-align:left;font-size:17px;font-weight:700;line-height:1.5;cursor:pointer;transition:background .16s var(--ease);}
.fold__head:hover{background:rgba(201,162,75,.08);}
.fold__icon{position:relative;flex:none;width:20px;height:20px;border:2px solid var(--gold);transition:transform .16s var(--ease);}
.fold__icon::before,.fold__icon::after{content:"";position:absolute;background:var(--gold-bright);}
.fold__icon::before{left:3px;right:3px;top:50%;height:2px;transform:translateY(-50%);}
.fold__icon::after{top:3px;bottom:3px;left:50%;width:2px;transform:translateX(-50%);transition:opacity .16s var(--ease);}
[data-fold-trigger][aria-expanded="true"] .fold__icon::after{opacity:0;}
.fold__body{padding:4px 18px 18px;border-top:1px solid var(--line-soft);}

/* 11. 显现动效 */
[data-reveal]{opacity:0;transform:translateY(6px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
[data-reveal].is-in{opacity:1;transform:none;}

/* 12. 响应式 */
@media(max-width:1080px){
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:26px;}
}
@media(max-width:980px){
  .cmdbar__inner{grid-template-columns:1fr auto;gap:12px;min-height:62px;}
  .cmdbar__nav{position:absolute;left:0;right:0;top:100%;display:none;background:var(--panel);border-bottom:2px solid var(--gold);box-shadow:0 22px 44px rgba(0,0,0,.7);}
  .cmdbar__nav[data-open]{display:block;}
  .nav-list{flex-direction:column;gap:0;padding:6px 12px 14px;}
  .nav-link{width:100%;padding:13px 12px;font-size:16px;border-bottom:1px solid var(--line-soft);}
  .nav-link::after{display:none;}
  .nav-link[aria-current="page"]{background:rgba(201,162,75,.1);}
  .nav-toggle{display:inline-flex;}
  .idx-panel__inner{grid-template-columns:1fr;gap:16px;}
  .grid--12{grid-template-columns:1fr;}
  .col-8,.col-4,.col-6{grid-column:span 1;}
  .section{padding-block:40px;}
}
@media(max-width:720px){
  :root{--pad:18px;}
  body{font-size:16px;}
  .version-chip{display:none;}
  .brand-mark__name{font-size:18px;}
  .foot-grid{grid-template-columns:1fr;gap:24px;padding-block:38px 24px;}
  .foot-legal{padding-bottom:40px;}
  .to-top{right:12px;bottom:12px;padding:10px 12px;}
  .card,.surface--cream{padding:16px;}
}

/* 13. 降低动效偏好 */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  [data-reveal]{opacity:1;transform:none;}
  .cmdbar__progress{transition:none;}
}