/* =========================================================
   澳门沙金 · 矩阵速览 —— /assets/site.css
   共享外壳：框架式导航（左竖导轨 + 顶横条）、切角面板、金沙斜线
   ========================================================= */

:root{
  --ink-900:#0B1A2A;
  --ink-850:#0d1c2e;
  --ink-800:#101F33;
  --ink-700:#16283F;
  --gold:#D4A017;
  --gold-hi:#F2C94C;
  --gold-dim:#8A6512;
  --jade:#1FA37A;
  --amber:#E07A3F;
  --white:#E6EDF5;
  --mist:#9FB0C4;
  --steel:#3B5A80;
  --line-soft:rgba(159,176,196,.16);
  --rail-w:88px;
  --topbar-h:56px;
  --cut:14px;
  --maxw:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono","JetBrains Mono",Consolas,"Courier New",monospace;
}

/* ---------- 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,dl,dt,dd,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,picture,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
::selection{background:rgba(212,160,23,.34);color:#fff}

/* ---------- base ---------- */
body{
  min-height:100vh;
  padding-left:var(--rail-w);
  padding-top:var(--topbar-h);
  background:var(--ink-900);
  color:var(--white);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(1100px 620px at 78% -12%,rgba(212,160,23,.10),transparent 62%),
    linear-gradient(135deg,#0B1A2A 0%,#16283F 45%,rgba(212,160,23,.06) 100%);
}
h1,.h-xl{font-size:clamp(30px,4.4vw,48px);font-weight:300;line-height:1.12;letter-spacing:-.01em}
h2,.h-lg{font-size:clamp(24px,3vw,36px);font-weight:300;line-height:1.2;letter-spacing:-.005em}
h3,.h-md{font-size:clamp(20px,2.2vw,28px);font-weight:400;line-height:1.28}
h4,.h-sm{font-size:clamp(17px,1.6vw,22px);font-weight:500;line-height:1.35}
p{max-width:42ch}
strong{color:var(--gold-hi);font-weight:500}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:0}
.lede{font-size:16px;line-height:1.9;color:var(--mist);max-width:42ch}
.hint{font-size:12.5px;line-height:1.8;color:var(--mist);letter-spacing:.02em}

:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:2px}

.skip-link{
  position:fixed;
  top:8px;
  left:8px;
  z-index:200;
  transform:translateY(-160%);
  padding:10px 16px;
  background:var(--gold);
  color:#14100a;
  font-size:13px;
  letter-spacing:.06em;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- layout helpers ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.section{padding:72px 0}
.section--tight{padding:40px 0}
.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--bento{grid-template-columns:repeat(12,minmax(0,1fr))}
.stack>*+*{margin-top:16px}

.index-label{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold);
}
.index-label::before{
  content:"";
  width:18px;
  height:1px;
  background:var(--gold);
  transform:rotate(-6deg);
}

.slash{display:block;width:72px;height:2px;background:linear-gradient(90deg,var(--gold-hi),var(--gold-dim));transform:rotate(-6deg);transform-origin:0 50%}
.edge-slant{
  display:block;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--gold) 16%,var(--gold-hi) 50%,var(--gold) 84%,transparent);
  transform:skewY(-1.4deg);
}

/* ---------- panels ---------- */
.panel{
  position:relative;
  padding:22px;
  background:linear-gradient(158deg,var(--ink-800) 0%,#0e1d30 62%,rgba(212,160,23,.06) 100%);
  border:1px solid var(--ink-700);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.panel--edge{box-shadow:inset 0 0 0 1px rgba(212,160,23,.34)}
.panel--flat{--cut:0px}
.panel:hover{transform:translateY(-2px);box-shadow:inset 0 0 0 1px rgba(212,160,23,.42),0 18px 34px rgba(0,0,0,.34)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  font-size:13px;
  letter-spacing:.1em;
  border:1px solid transparent;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--sm{min-height:44px;padding:0 15px;font-size:12.5px;letter-spacing:.08em}
.btn--gold{background:linear-gradient(135deg,var(--gold-hi),var(--gold) 55%,var(--gold-dim));color:#16110a;font-weight:500}
.btn--gold:hover{background:linear-gradient(135deg,#ffe07a,var(--gold-hi) 60%,var(--gold));transform:translateY(-2px)}
.btn--ghost{border-color:rgba(212,160,23,.48);color:var(--gold-hi);background:rgba(212,160,23,.06)}
.btn--ghost:hover{background:rgba(212,160,23,.16);transform:translateY(-2px)}
.btn--plain{border-color:var(--ink-700);color:var(--mist);background:rgba(22,40,63,.5)}
.btn--plain:hover{color:var(--white);border-color:var(--gold-dim)}

/* ---------- pills ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  font-size:11px;
  letter-spacing:.08em;
  color:var(--mist);
  background:rgba(59,90,128,.18);
  border:1px solid var(--ink-700);
  clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.pill--pass{color:#7fe3c2;border-color:rgba(31,163,122,.52);background:rgba(31,163,122,.14)}
.pill--risk{color:#f0b48a;border-color:rgba(224,122,63,.52);background:rgba(224,122,63,.14)}
.pill--gold{color:var(--gold-hi);border-color:rgba(212,160,23,.5);background:rgba(212,160,23,.14)}

/* ---------- breadcrumbs ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--mist);
}
.breadcrumbs li{display:flex;align-items:center}
.breadcrumbs li+li::before{content:"/";margin:0 8px 0 0;color:var(--gold-dim)}
.breadcrumbs a:hover{color:var(--gold-hi)}
.breadcrumbs [aria-current="page"]{color:var(--white)}

/* ---------- media containers ---------- */
.media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:linear-gradient(135deg,#0B1A2A 0%,#16283F 45%,rgba(212,160,23,.18) 100%);
  border:1px solid var(--ink-700);
  clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut));
}
.media>img,.media>picture>*,.media>svg,.media>video{width:100%;height:100%;object-fit:cover}
.media--tall{aspect-ratio:4/5}
.media--wide{aspect-ratio:21/9}
.media--square{aspect-ratio:1/1}
.media__caption{
  position:absolute;
  left:12px;
  bottom:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--white);
  text-shadow:0 1px 8px rgba(0,0,0,.7);
}
.media__placeholder{
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  color:rgba(230,237,245,.42);
  background-image:
    repeating-linear-gradient(135deg,rgba(212,160,23,.10) 0 1px,transparent 1px 12px);
}

/* =========================================================
   HEADER —— 框架式导航
   ========================================================= */
.site-header{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--rail-w);
  z-index:80;
}
.site-header__rail{
  display:flex;
  flex-direction:column;
  height:100%;
  background:linear-gradient(180deg,#0d1c2e 0%,#0B1A2A 55%,#0d1c2e 100%);
  border-right:1px solid var(--ink-700);
  overflow-y:auto;
  scrollbar-width:none;
}
.site-header__rail::-webkit-scrollbar{display:none}

.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  padding:18px 8px 12px;
  color:var(--white);
}
.brand__mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  font-size:15px;
  font-weight:500;
  color:var(--gold-hi);
  border:1px solid var(--gold-dim);
  background:linear-gradient(140deg,rgba(212,160,23,.24),rgba(212,160,23,.04));
  clip-path:polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px);
}
.brand__name{font-size:12.5px;letter-spacing:.06em;line-height:1.35;text-align:center}
.brand__sub{font-family:var(--font-mono);font-size:9px;letter-spacing:.16em;color:var(--gold-dim);text-transform:uppercase}

.site-nav{display:flex;flex-direction:column;flex:1 1 auto;gap:10px;padding:8px 8px 14px}
.site-nav__title{
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mist);
  text-align:center;
  max-width:none;
}
.site-nav__list{display:flex;flex-direction:column;gap:4px}
.nav-link{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  min-height:48px;
  padding:6px 4px;
  color:var(--mist);
  border-left:2px solid transparent;
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.nav-link__idx{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.1em;color:var(--gold-dim);transition:color .2s var(--ease)}
.nav-link__label{font-size:11.5px;line-height:1.25;letter-spacing:.02em;text-align:center}
.nav-link:hover{color:var(--white);background:rgba(212,160,23,.08)}
.nav-link[aria-current="page"]{
  color:var(--gold-hi);
  border-left-color:var(--gold);
  background:linear-gradient(90deg,rgba(212,160,23,.18),rgba(212,160,23,0));
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--gold-hi)}

.site-header__utility{
  writing-mode:vertical-rl;
  align-self:center;
  padding:12px 0 16px;
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.22em;
  color:var(--mist);
  opacity:.72;
}

.site-header__top{
  position:fixed;
  top:0;
  left:var(--rail-w);
  right:0;
  height:var(--topbar-h);
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 20px;
  background:rgba(11,26,42,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--ink-700);
  z-index:70;
}
.site-header__tag{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  color:var(--gold);
  max-width:none;
}
.site-header__seam{width:1px;height:20px;background:linear-gradient(180deg,transparent,var(--gold),transparent);transform:rotate(6deg)}
.site-header__cta{display:flex;align-items:center;gap:10px;margin-left:auto}
.site-header__progress{
  position:absolute;
  left:0;
  bottom:-1px;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold-dim),var(--gold) 55%,var(--gold-hi));
  pointer-events:none;
}
.site-header[data-scrolled] .site-header__top{background:rgba(11,26,42,.95);border-bottom-color:rgba(212,160,23,.32)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  min-height:44px;
  min-width:44px;
  padding:0 12px;
  color:var(--gold-hi);
  border:1px solid rgba(212,160,23,.45);
  background:rgba(212,160,23,.08);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  display:block;
  width:16px;
  height:2px;
  background:var(--gold-hi);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle__bars{position:relative}
.nav-toggle__bars::before{content:"";position:absolute;top:-5px;left:0}
.nav-toggle__bars::after{content:"";position:absolute;top:5px;left:0}
.nav-toggle__text{font-size:12px;letter-spacing:.12em}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{
  position:relative;
  margin-top:96px;
  background:linear-gradient(180deg,#0B1A2A 0%,#0d1c2e 42%,var(--ink-800) 100%);
  border-top:1px solid var(--ink-700);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:min(46%,460px);
  height:2px;
  background:linear-gradient(90deg,var(--gold-dim),var(--gold-hi),transparent);
}
.site-footer__inner{
  display:grid;
  grid-template-columns:1.1fr 2fr 1.5fr;
  gap:44px;
  max-width:var(--maxw);
  margin:0 auto;
  padding:64px 28px 42px;
}
.site-footer__brand{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.site-footer__title{font-size:20px;font-weight:400;letter-spacing:.04em;max-width:none}
.site-footer__line{font-size:13px;line-height:1.9;color:var(--mist);max-width:30ch}
.site-footer__nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold);
  margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:2px}
.footer-links a{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  font-size:13.5px;
  color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-links a:hover{color:var(--gold-hi);border-bottom-color:rgba(212,160,23,.5)}
.footer-links a[aria-current="page"]{color:var(--gold-hi)}
.site-footer__contact{display:flex;flex-direction:column;gap:12px}
.contact-list{display:flex;flex-direction:column;gap:10px}
.contact-list__row{display:flex;flex-direction:column;gap:2px;padding-left:12px;border-left:1px solid var(--ink-700)}
.contact-list__key{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;color:var(--mist)}
.contact-list__val{font-size:13.5px;line-height:1.7;color:var(--white)}
.site-footer__note{font-size:12px;line-height:1.85;color:var(--mist);max-width:32ch}
.site-footer__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  max-width:var(--maxw);
  margin:0 auto;
  padding:18px 28px 34px;
  border-top:1px solid var(--ink-700);
}
.site-footer__copy{font-size:12px;letter-spacing:.04em;color:var(--mist);max-width:none}
.legal-links{display:flex;flex-wrap:wrap;gap:18px}
.legal-links a{font-size:12px;letter-spacing:.08em;color:var(--mist)}
.legal-links a:hover{color:var(--gold-hi)}

/* =========================================================
   动效协议
   ========================================================= */
html[data-motion="ready"] [data-reveal]{
  opacity:0;
  transform:translate3d(0,12px,0);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
  will-change:opacity,transform;
}
html[data-motion="ready"] [data-reveal][data-revealed]{opacity:1;transform:none}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1080px){
  .site-footer__inner{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer__contact{grid-column:1 / -1}
}

@media (max-width:900px){
  :root{--rail-w:0px;--topbar-h:60px}
  body{padding-left:0;padding-top:0}
  .site-header{
    position:sticky;
    top:0;
    left:0;
    bottom:auto;
    width:100%;
    height:var(--topbar-h);
    display:flex;
    align-items:center;
    justify-content:space-between;
    background:rgba(11,26,42,.95);
    border-bottom:1px solid var(--ink-700);
    z-index:90;
  }
  .site-header__rail{
    flex-direction:row;
    align-items:center;
    flex:1 1 auto;
    width:auto;
    height:100%;
    padding-left:12px;
    background:none;
    border-right:0;
    overflow:visible;
  }
  .brand{flex-direction:row;align-items:center;gap:9px;padding:0;height:100%}
  .brand__mark{width:30px;height:30px;font-size:13px}
  .brand__name{font-size:14px;letter-spacing:.04em}
  .brand__sub{display:none}
  .site-header__utility{display:none}
  .site-header__top{
    position:static;
    flex:0 0 auto;
    width:auto;
    height:100%;
    padding:0 12px;
    background:none;
    -webkit-backdrop-filter:none;
    backdrop-filter:none;
    border-bottom:0;
  }
  .site-header__tag,.site-header__seam,.site-header__cta{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;
    top:var(--topbar-h);
    left:0;
    right:0;
    max-height:calc(100vh - var(--topbar-h));
    overflow-y:auto;
    flex-direction:column;
    gap:8px;
    padding:16px 18px 26px;
    background:linear-gradient(180deg,rgba(16,31,51,.99),rgba(11,26,42,.99));
    border-bottom:1px solid var(--ink-700);
    box-shadow:0 26px 44px rgba(0,0,0,.5);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s linear;
  }
  .site-nav[data-open]{opacity:1;visibility:visible;transform:none}
  .site-nav__title{text-align:left;padding-left:12px}
  .site-nav__list{gap:2px}
  .nav-link{
    flex-direction:row;
    align-items:center;
    justify-content:flex-start;
    gap:14px;
    min-height:50px;
    padding:0 12px;
    border-left:2px solid transparent;
    border-bottom:1px solid var(--line-soft);
    font-size:15px;
  }
  .nav-link__idx{font-size:11px}
  .nav-link__label{font-size:15px;text-align:left}
  .nav-link[aria-current="page"]{background:linear-gradient(90deg,rgba(212,160,23,.18),transparent)}
  .grid--bento{grid-template-columns:repeat(6,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:52px 0}
  .site-footer{margin-top:64px}
  .site-footer__inner{grid-template-columns:1fr;padding:48px 20px 30px;gap:32px}
  .site-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .site-footer__legal{padding:16px 20px 30px}
  .wrap{padding:0 20px}
}

@media (max-width:640px){
  body{font-size:14.5px}
  .grid--2,.grid--3,.grid--bento{grid-template-columns:minmax(0,1fr)}
  .site-footer__nav{grid-template-columns:1fr}
  .media{--cut:10px}
  .panel{padding:18px}
}

@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[data-motion="ready"] [data-reveal]{opacity:1;transform:none}
  .slash,.edge-slant,.site-header__seam{transform:none}
}