/* =============================================================
   /assets/site.css — 尊龙旗舰厅共享样式
   1 令牌与重置  2 排版  3 通用容器与栅格  4 面板与分区
   5 组件  6 头部  7 页脚  8 响应式与无障碍
   ============================================================= */

/* ---------- 1. 令牌与重置 ---------- */
:root{
  --ink:#08090B;
  --panel:#12141A;
  --panel-2:#171A21;
  --gold:#C8A44A;
  --gold-soft:rgba(200,164,74,.32);
  --silver:#9BA6B0;
  --bronze:#B4713C;
  --cinnabar:#B8402F;
  --teal:#1C4A46;
  --wine:#4A2233;
  --indigo:#2A2148;
  --paper:#ECE9E2;
  --stone:#8A919B;
  --text:#DAD7D0;
  --line:rgba(155,166,176,.18);
  --line-2:rgba(155,166,176,.28);
  --cut:18px;
  --cut-sm:10px;
  --chamfer:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  --chamfer-sm:polygon(0 0,calc(100% - var(--cut-sm)) 0,100% var(--cut-sm),100% 100%,var(--cut-sm) 100%,0 calc(100% - var(--cut-sm)));
  --cut-btn:12px;
  --chamfer-btn:polygon(0 0,calc(100% - var(--cut-btn)) 0,100% var(--cut-btn),100% 100%,var(--cut-btn) 100%,0 calc(100% - var(--cut-btn)));
  --font-sans:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --wrap:1240px;
  --gutter:clamp(18px,4vw,56px);
  --header-h:68px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
::selection{background:rgba(200,164,74,.32);color:#fff}

body{
  min-height:100vh;
  font-family:var(--font-sans);
  font-weight:400;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    radial-gradient(70rem 34rem at 84% -8%,rgba(42,33,72,.55),transparent 62%),
    radial-gradient(52rem 30rem at 4% 0%,rgba(28,74,70,.40),transparent 66%),
    linear-gradient(180deg,rgba(18,20,26,.92),rgba(8,9,11,0) 46%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
main{display:block}

/* ---------- 2. 排版 ---------- */
.display{
  font-weight:200;
  font-size:clamp(56px,8vw,128px);
  line-height:.96;
  letter-spacing:.02em;
  color:var(--paper);
}
.h2{
  font-weight:700;
  font-size:clamp(24px,3vw,40px);
  line-height:1.24;
  letter-spacing:.04em;
  color:var(--paper);
}
.h3{
  font-weight:700;
  font-size:clamp(18px,2vw,24px);
  line-height:1.35;
  letter-spacing:.04em;
  color:var(--paper);
}
.rule-gold{display:block;width:64px;height:2px;margin-top:16px;background:linear-gradient(90deg,var(--gold),rgba(200,164,74,0))}
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--gold);
}
.lede{max-width:34em;font-size:clamp(16px,1.4vw,18px);line-height:1.9;color:var(--silver)}
.prose{max-width:34em;color:#CFCBC3}
.prose p+p{margin-top:1.2em}
.prose h3{margin-top:1.6em}
.muted{color:var(--silver)}
.mono{font-family:var(--font-mono);letter-spacing:.14em}
.link{color:var(--gold);border-bottom:1px solid var(--gold-soft);transition:border-color .2s,color .2s}
.link:hover{border-bottom-color:var(--gold);color:#E3C469}

/* ---------- 3. 容器与栅格 ---------- */
.wrap{width:min(calc(100% - (var(--gutter) * 2)),var(--wrap));margin-inline:auto}
.section{padding-block:clamp(48px,7vw,104px)}
.section--tight{padding-block:clamp(32px,4.5vw,60px)}
.stack{display:flex;flex-direction:column;gap:clamp(16px,2.2vw,28px)}
.stack--lg{gap:clamp(28px,4vw,56px)}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,2vw,28px)}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
.offset-1{grid-column-start:2}
.offset-2{grid-column-start:3}
.offset-3{grid-column-start:4}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px 32px}

/* ---------- 4. 面板与分区 ---------- */
.panel{
  position:relative;
  padding:clamp(20px,3vw,40px);
  background:var(--panel);
  box-shadow:inset 0 0 0 1px var(--line);
  clip-path:var(--chamfer);
}
.panel::after{
  content:"";
  position:absolute;
  left:0;bottom:0;width:56px;height:2px;
  background:linear-gradient(90deg,var(--gold),rgba(200,164,74,0));
}
.panel--flat{box-shadow:none;background:var(--panel-2)}
.panel--teal{background:linear-gradient(150deg,#1C4A46,#0F2E2B)}
.panel--wine{background:linear-gradient(150deg,#4A2233,#281420)}
.panel--indigo{background:linear-gradient(150deg,#2A2148,#16112A)}
.panel--paper{background:var(--paper);color:#191B20;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}
.panel--paper .muted,.panel--paper .lede{color:#4C525A}
.panel--paper .h2,.panel--paper .h3,.panel--paper .display{color:#12141A}
.panel-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px 24px}
.panel-label{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--stone);
}
.stack-panels{display:grid;gap:clamp(14px,2vw,26px)}
.stack-panels>*:nth-child(2n){margin-inline-start:clamp(0px,1.4vw,22px)}
.band{position:relative;background:var(--panel)}
.band--teal{background:linear-gradient(150deg,#1C4A46,#0F2E2B)}
.band--wine{background:linear-gradient(150deg,#4A2233,#281420)}
.band--indigo{background:linear-gradient(150deg,#2A2148,#16112A)}
.band--paper{background:var(--paper);color:#191B20}
.band--paper .h2,.band--paper .display,.band--paper .h3{color:#12141A}
.band--paper .lede,.band--paper .muted{color:#4C525A}
.hairline{display:block;height:1px;background:var(--line-2);border:0}
.diag{
  display:block;height:clamp(28px,4vw,54px);
  background:
    repeating-linear-gradient(-58deg,var(--gold-soft) 0 1px,transparent 1px 14px);
  opacity:.55;
}

/* ---------- 5. 组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--paper);
  clip-path:var(--chamfer-btn);
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.btn--gold{background:linear-gradient(135deg,var(--gold),#A9822F);color:#0B0C0F}
.btn--gold:hover{background:linear-gradient(135deg,#E2C069,var(--gold));transform:translateY(-1px)}
.btn--ghost{background:rgba(236,233,226,.04);box-shadow:inset 0 0 0 1px rgba(155,166,176,.42)}
.btn--ghost:hover{color:var(--gold);box-shadow:inset 0 0 0 1px var(--gold)}
.btn--sm{min-height:38px;padding:0 16px;font-size:11px;letter-spacing:.14em}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--silver);
  box-shadow:inset 0 0 0 1px var(--line-2);
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}
.chip--a9{color:var(--gold);background:rgba(200,164,74,.10);box-shadow:inset 0 0 0 1px rgba(200,164,74,.55)}
.chip--a8{color:#C3CCD4;background:rgba(155,166,176,.10);box-shadow:inset 0 0 0 1px rgba(155,166,176,.5)}
.chip--a7{color:#D2905C;background:rgba(180,113,60,.12);box-shadow:inset 0 0 0 1px rgba(180,113,60,.58)}
.chip--state{color:#F0D8D2;background:rgba(184,64,47,.20);box-shadow:inset 0 0 0 1px rgba(184,64,47,.65)}

.stat{display:flex;flex-direction:column;gap:8px}
.data-num{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(40px,6vw,72px);
  line-height:1;
  letter-spacing:-.01em;
  color:var(--paper);
  font-variant-numeric:tabular-nums;
}
.data-num--gold{color:var(--gold)}
.data-num--silver{color:var(--silver)}
.data-num--bronze{color:var(--bronze)}
.data-unit{font-family:var(--font-mono);font-size:13px;letter-spacing:.16em;color:var(--silver);margin-left:6px}

.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--stone);
}
.breadcrumbs li{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs li+li::before{content:"/";color:var(--gold-soft)}
.breadcrumbs a{transition:color .2s}
.breadcrumbs a:hover{color:var(--gold)}
.breadcrumbs [aria-current="page"]{color:var(--silver)}

.media{
  position:relative;
  overflow:hidden;
  background:linear-gradient(140deg,#12141A,#0A0B0F);
  box-shadow:inset 0 0 0 1px var(--line);
  clip-path:var(--chamfer-sm);
}
.media img{width:100%;height:100%;object-fit:cover;filter:saturate(.88) contrast(1.06)}
.media--wide{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media--band{aspect-ratio:21/9}
.media--portrait{aspect-ratio:4/5}
.media[data-label]::before{
  content:attr(data-label);
  position:absolute;inset:0;
  display:grid;place-items:center;
  padding:16px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.2em;
  text-align:center;
  color:var(--stone);
}
.media__cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:12px 16px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--paper);
  background:linear-gradient(0deg,rgba(8,9,11,.88),rgba(8,9,11,0));
}

.segmented{display:block}
.segmented-list{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  padding:6px;
  background:var(--panel);
  box-shadow:inset 0 0 0 1px var(--line);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));
}
.seg-btn{
  min-height:44px;
  padding:0 18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--silver);
  background:transparent;
  transition:background .2s ease,color .2s ease;
}
.seg-btn:hover{color:var(--paper);background:rgba(236,233,226,.06)}
.seg-btn[aria-selected="true"]{background:var(--gold);color:#0B0C0F}
.seg-btn[data-tier="a8"][aria-selected="true"]{background:var(--silver);color:#0B0C0F}
.seg-btn[data-tier="a7"][aria-selected="true"]{background:var(--bronze);color:#120C07}
.segmented-panels{padding-top:clamp(16px,2.2vw,28px)}
.seg-panel[hidden]{display:none}

[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 6. 头部 ---------- */
.skip-link{
  position:absolute;
  left:var(--gutter);
  top:-80px;
  z-index:140;
  padding:10px 18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  color:#0B0C0F;
  background:var(--gold);
  clip-path:var(--chamfer-sm);
  transition:top .18s ease;
}
.skip-link:focus{top:10px}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(8,9,11,.92);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line-2);
}
.hdr-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;pointer-events:none}
.hdr-progress-bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--bronze),var(--gold));
}
.hdr-inner{
  width:min(calc(100% - (var(--gutter) * 2)),var(--wrap));
  margin-inline:auto;
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,32px);
}

.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;padding-block:10px}
.brand-glyph{
  position:relative;
  width:26px;height:26px;flex:none;
  background:linear-gradient(135deg,var(--gold),#7C6329);
  clip-path:polygon(0 0,100% 0,100% 58%,58% 100%,0 100%);
}
.brand-glyph::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(8,9,11,0) 45%,rgba(8,9,11,.92) 45%,rgba(8,9,11,.92) 55%,rgba(8,9,11,0) 55%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-mark{font-weight:700;font-size:15.5px;letter-spacing:.16em;color:var(--paper)}
.brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--stone)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  min-height:44px;
  min-width:44px;
  margin-left:auto;
  padding:0 14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--silver);
  background:rgba(18,20,26,.75);
  box-shadow:inset 0 0 0 1px var(--line-2);
  clip-path:var(--chamfer-sm);
  transition:color .2s ease,box-shadow .2s ease;
}
.nav-toggle-bars{display:inline-flex;flex-direction:column;justify-content:center;gap:3px;width:16px;height:16px}
.nav-toggle-bars i{display:block;height:1.5px;width:100%;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"]{color:var(--gold);box-shadow:inset 0 0 0 1px var(--gold-soft)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(3){transform:translateY(-4.5px) rotate(-45deg)}

.hdr-drawer{
  display:flex;
  flex:1 1 auto;
  min-width:0;
  align-items:center;
  justify-content:flex-end;
  gap:clamp(20px,3vw,48px);
}
.primary-nav{margin-inline-end:auto;min-width:0}
.nav-list{display:flex;align-items:center;gap:clamp(4px,1.4vw,18px)}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:10px 6px;
  font-size:14px;
  letter-spacing:.06em;
  color:var(--silver);
  transition:color .2s ease;
}
.nav-idx{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;color:rgba(155,166,176,.58);transition:color .2s ease}
.nav-name{white-space:nowrap}
.nav-link::after{
  content:"";
  position:absolute;
  left:6px;right:6px;bottom:2px;height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s ease;
}
.nav-link:hover{color:var(--paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--gold)}
.nav-link[aria-current="page"] .nav-idx{color:var(--gold)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);height:2px}
.nav-note{display:none}

.hdr-utility{display:flex;align-items:center;gap:clamp(10px,1.6vw,22px);flex:0 0 auto}
.util-link{
  position:relative;
  padding:8px 0;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.16em;
  color:var(--silver);
  transition:color .2s ease;
}
.util-link::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.util-link:hover{color:var(--gold)}
.util-link:hover::after{transform:scaleX(1)}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(40px,6vw,96px);
  background:#0A0B0E;
  border-top:1px solid var(--line-2);
}
.site-footer::before{
  content:"";
  position:absolute;top:-1px;left:0;height:2px;width:min(320px,44%);
  background:linear-gradient(90deg,var(--gold),rgba(200,164,74,0));
}
.ftr-inner{width:min(calc(100% - (var(--gutter) * 2)),var(--wrap));margin-inline:auto;padding-block:clamp(40px,5.5vw,76px)}
.ftr-top{display:grid;grid-template-columns:minmax(220px,1.05fr) 2fr;gap:clamp(24px,4vw,56px);align-items:start}
.ftr-mark{display:block;font-weight:700;font-size:20px;letter-spacing:.14em;color:var(--paper)}
.ftr-tagline{margin-top:14px;max-width:26em;font-size:14.5px;line-height:1.85;color:var(--silver)}
.ftr-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,40px)}
.ftr-title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--gold);
}
.ftr-list{display:flex;flex-direction:column;gap:2px}
.ftr-link{display:inline-flex;padding:6px 0;font-size:14.5px;color:var(--silver);transition:color .2s ease,transform .2s ease}
.ftr-link:hover{color:var(--gold);transform:translateX(3px)}
.ftr-plate{
  margin-top:clamp(28px,4vw,48px);
  padding:clamp(18px,2.4vw,30px);
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:18px 32px;
  background:var(--panel);
  box-shadow:inset 0 0 0 1px var(--line);
  clip-path:var(--chamfer);
}
.ftr-cell{display:flex;flex-direction:column;gap:5px;min-width:0}
.ftr-k{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone)}
.ftr-v{font-size:14.5px;color:var(--paper);overflow-wrap:anywhere}
.ftr-bottom{
  margin-top:clamp(24px,3vw,40px);
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 28px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--stone);
}
.ftr-legal-links{display:flex;flex-wrap:wrap;gap:10px 22px}
.ftr-legal-links a{transition:color .2s ease}
.ftr-legal-links a:hover{color:var(--gold)}

/* ---------- 8. 响应式与无障碍 ---------- */
@media (max-width:1040px){
  .nav-toggle{display:inline-flex}
  .hdr-drawer{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:10px var(--gutter) 22px;
    background:#0A0B0E;
    border-bottom:1px solid var(--line-2);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .hdr-drawer[data-open]{opacity:1;visibility:visible;transform:none}
  .primary-nav[data-open]{display:block}
  .primary-nav{margin-inline-end:0;width:100%}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid var(--line)}
  .nav-link{width:100%;min-height:48px;padding:13px 4px;font-size:16px}
  .nav-link::after{left:4px;right:auto;width:26px;bottom:9px}
  .nav-idx{font-size:11px}
  .nav-note{
    display:block;
    margin-top:18px;
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:.14em;
    line-height:1.8;
    color:var(--stone);
  }
  .hdr-utility{flex-direction:column;align-items:stretch;gap:0;margin-top:14px;width:100%}
  .util-link{min-height:44px;padding:12px 4px;border-bottom:1px solid var(--line)}
  .util-link::after{display:none}
  .hdr-cta{width:100%;margin-top:16px}
  .ftr-top{grid-template-columns:1fr}
}
@media (max-width:900px){
  .col-3,.col-4,.col-5{grid-column:span 6}
  .col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 12}
  .offset-1,.offset-2,.offset-3{grid-column-start:auto}
  .stack-panels>*:nth-child(2n){margin-inline-start:0}
}
@media (max-width:620px){
  body{font-size:16px}
  .col-3,.col-4,.col-5{grid-column:span 12}
  .ftr-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}
  .ftr-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .segmented-list{flex-direction:column}
  .seg-btn{width:100%;justify-content:flex-start}
}
@media (min-width:1041px){
  .hdr-drawer[data-open]{opacity:1;visibility:visible;transform:none}
}
@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}
}