/* ============================================================
   尊龙凯时官网 · 共享样式 /assets/site.css
   墨玉黑底 · 龙鳞金单点发光 · 东方秩序感
   ============================================================ */

/* ---------- 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,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
img,svg,video{display:block;max-width:100%;}
table{border-collapse:collapse;width:100%;}
[hidden]{display:none !important;}

/* ---------- tokens ---------- */
:root{
  --ink:#0B0F10;
  --abyss:#0F2024;
  --slate:#1B2A2E;
  --gold:#C9A227;
  --gold-light:#E6D69B;
  --ripple:#2E6F73;
  --ripple-light:#7FC2C6;
  --cinnabar:#B23A2E;
  --paper:#F2F0E9;
  --mist:#9AA5A3;
  --hairline:#5A4A1E;

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong",serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1240px;
  --gutter:clamp(18px,4vw,48px);
  --radius-lg:28px;
  --radius-md:20px;
  --radius-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:76px;
}

/* ---------- base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 560px at 82% -12%, rgba(46,111,115,.20), transparent 62%),
    radial-gradient(900px 520px at -6% 104%, rgba(201,162,39,.08), transparent 66%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  overflow-x:hidden;
}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px;}

.skip-link{
  position:fixed;left:16px;top:-120px;z-index:200;
  padding:10px 18px;
  background:var(--gold);color:var(--ink);
  border-radius:0 0 14px 14px;
  font-size:14px;font-weight:600;letter-spacing:.04em;
  transition:top 200ms var(--ease);
}
.skip-link:focus{top:0;}

.shell{width:min(var(--shell),100% - var(--gutter) * 2);margin-inline:auto;}

/* ---------- typography ---------- */
.display{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(32px,5.4vw,72px);
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--paper);
}
.display em{font-style:normal;color:var(--gold-light);}
.eyebrow{
  font-size:12px;
  line-height:1.6;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--mist);
}
.lede{
  max-width:62ch;
  font-size:clamp(16px,1.5vw,19px);
  line-height:1.95;
  color:#D6D4CB;
}
.flow > * + *{margin-top:1.4em;}
.mono{
  font-family:var(--font-mono);
  font-size:.92em;
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.hairline{
  height:1px;border:0;
  background:linear-gradient(90deg,rgba(90,74,30,.85),rgba(90,74,30,0));
}

/* ---------- layout rhythm ---------- */
.section{padding-block:clamp(64px,9vw,124px);}
.section--abyss{background:var(--abyss);}
.section--slate{background:var(--slate);}
.section-head{max-width:56ch;}
.section-head .eyebrow{margin-bottom:14px;}

.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(20px,2.6vw,36px);}
.span-main{grid-column:2 / 9;}
.span-note{grid-column:10 / 13;}

/* ---------- pills & states ---------- */
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border:1px solid rgba(90,74,30,.55);
  border-radius:var(--radius-pill);
  font-size:13px;line-height:1.7;color:var(--mist);
}
.pill--gold{color:var(--gold-light);background:rgba(201,162,39,.12);border-color:rgba(201,162,39,.42);}
.pill--ripple{color:var(--ripple-light);background:rgba(46,111,115,.20);border-color:rgba(46,111,115,.55);}
.pill--alert{color:#E8A79F;background:rgba(178,58,46,.16);border-color:rgba(178,58,46,.5);}
.state-dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--cinnabar);
  box-shadow:0 0 0 3px rgba(178,58,46,.18),0 0 14px -2px rgba(178,58,46,.9);
  vertical-align:middle;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  border:1px solid rgba(90,74,30,.6);
  border-radius:var(--radius-pill);
  font-size:15px;line-height:1.4;letter-spacing:.02em;
  transition:background-color 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease);
}
.btn--primary{background:var(--gold);border-color:var(--gold);color:var(--ink);font-weight:600;}
.btn--primary:hover{background:var(--gold-light);border-color:var(--gold-light);}
.btn--ghost{color:var(--paper);}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-light);}
.btn--link{padding:0;border:0;border-radius:0;color:var(--gold-light);}
.btn--link:hover{color:var(--paper);text-decoration:underline;text-underline-offset:6px;}

/* ---------- panel / breadcrumbs / steps ---------- */
.panel{
  background:rgba(27,42,46,.72);
  border:1px solid rgba(90,74,30,.38);
  border-radius:var(--radius-lg);
  padding:clamp(20px,3vw,32px);
}
.crumbs{font-size:13px;color:var(--mist);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;}
.crumbs li{display:inline-flex;align-items:center;}
.crumbs li + li::before{content:"/";margin:0 10px;color:rgba(154,165,163,.45);}
.crumbs a:hover{color:var(--gold-light);}
.steps{counter-reset:step;}
.step{
  position:relative;
  padding-left:54px;
  counter-increment:step;
}
.step + .step{margin-top:22px;}
.step::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  font-family:var(--font-mono);font-size:13px;color:var(--gold);
  width:38px;height:38px;display:grid;place-items:center;
  border:1px solid rgba(201,162,39,.42);border-radius:50%;
  background:rgba(201,162,39,.08);
}

/* ---------- media frames ---------- */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16 / 9;
  border:1px solid rgba(90,74,30,.38);
  border-radius:var(--radius-lg);
  background-color:var(--abyss);
  background-image:
    radial-gradient(120% 92% at 18% 0%, rgba(46,111,115,.38), transparent 62%),
    radial-gradient(86% 70% at 102% 100%, rgba(201,162,39,.18), transparent 60%),
    repeating-linear-gradient(118deg, rgba(242,240,233,.035) 0 2px, transparent 2px 15px);
}
.media-frame::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:44%;
  background:linear-gradient(180deg,transparent,rgba(11,15,16,.78));
  pointer-events:none;
}
.media-frame > img,
.media-frame > video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:3 / 4;}
.media-frame--square{aspect-ratio:1 / 1;}
.media-caption{margin-top:10px;font-size:13px;line-height:1.8;color:var(--mist);}

/* ---------- reveal ---------- */
.js-loaded [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease);
  transition-delay:calc(var(--i,0) * 60ms);
}
.js-loaded [data-reveal].is-visible{opacity:1;transform:none;}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(11,15,16,.78),rgba(11,15,16,0));
  border-bottom:1px solid transparent;
  transition:background-color 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-header[data-scrolled]{
  background-color:rgba(11,15,16,.94);
  border-bottom-color:rgba(90,74,30,.55);
  box-shadow:0 22px 46px -36px rgba(0,0,0,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.header-inner{
  display:flex;align-items:center;gap:16px;
  min-height:var(--header-h);
}

/* brand */
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:50%;
  background:radial-gradient(circle at 32% 28%,var(--gold-light),var(--gold) 42%,#6b5410 72%,#241d07);
  box-shadow:0 0 0 1px rgba(201,162,39,.34),0 0 24px -8px rgba(201,162,39,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{
  font-family:var(--font-display);font-weight:800;
  font-size:17px;letter-spacing:-.01em;color:var(--paper);
}
.brand-latin{
  font-size:10px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--mist);
}

/* nav group one */
.nav-primary{margin-inline:auto;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-pill{
  display:inline-block;
  padding:8px 16px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-size:15px;line-height:1.6;color:#E4E2DA;
  transition:color 240ms var(--ease),border-color 240ms var(--ease),background-color 240ms var(--ease);
}
.nav-pill:hover{color:var(--gold-light);border-color:rgba(201,162,39,.5);}
.nav-pill[aria-current="page"]{
  background:rgba(201,162,39,.16);
  border-color:rgba(201,162,39,.46);
  color:var(--gold-light);
}

/* tools */
.header-tools{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.layer-toggle{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;
  border:1px solid rgba(90,74,30,.6);
  border-radius:var(--radius-pill);
  font-size:13px;letter-spacing:.04em;color:var(--paper);
  transition:border-color 240ms var(--ease),color 240ms var(--ease);
}
.layer-toggle:hover{border-color:var(--gold);color:var(--gold-light);}
.layer-toggle[aria-expanded="true"]{border-color:var(--gold);color:var(--gold-light);background:rgba(201,162,39,.1);}
.layer-caret{
  width:7px;height:7px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;
  transform:rotate(45deg) translate(-2px,-2px);
  transition:transform 240ms var(--ease);
}
.layer-toggle[aria-expanded="true"] .layer-caret{transform:rotate(225deg) translate(-1px,-1px);}

.avatar-entry{position:relative;}
.avatar-btn{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(201,162,39,.45);
  background:rgba(15,32,36,.9);
  transition:border-color 240ms var(--ease),box-shadow 240ms var(--ease);
}
.avatar-btn:hover{border-color:var(--gold);box-shadow:0 0 22px -10px rgba(201,162,39,.95);}
.avatar-btn[aria-expanded="true"]{border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,162,39,.16);}
.avatar-ring{
  width:14px;height:14px;border-radius:50%;
  background:radial-gradient(circle at 34% 30%,var(--gold-light),var(--gold) 60%,#5b4712);
}

.account-panel{
  position:absolute;top:calc(100% + 12px);right:0;
  width:262px;
  padding:18px;
  background:rgba(27,42,46,.98);
  border:1px solid rgba(90,74,30,.6);
  border-radius:var(--radius-md);
  box-shadow:0 30px 60px -34px rgba(0,0,0,.95);
  z-index:70;
}
.account-panel-title{
  font-family:var(--font-display);font-size:15px;letter-spacing:.02em;color:var(--gold-light);
}
.account-panel-note{margin-top:8px;font-size:13px;line-height:1.8;color:var(--mist);}
.account-list{margin-top:14px;border-top:1px solid rgba(90,74,30,.45);padding-top:12px;}
.account-list li + li{margin-top:6px;}
.account-link{
  display:block;padding:7px 10px;border-radius:12px;
  font-size:14px;color:#E4E2DA;
  transition:background-color 240ms var(--ease),color 240ms var(--ease);
}
.account-link:hover{background:rgba(201,162,39,.12);color:var(--gold-light);}

/* hamburger */
.nav-toggle{
  display:none;
  width:42px;height:42px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid rgba(90,74,30,.6);
  border-radius:14px;
  transition:border-color 240ms var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);}
.nav-toggle-bar{
  display:block;width:18px;height:1.5px;border-radius:2px;
  background:var(--paper);
  transition:transform 240ms var(--ease),opacity 200ms var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* nav group two : dark layer */
.more-layer{
  position:absolute;left:0;right:0;top:100%;
  background:linear-gradient(180deg,rgba(15,32,36,.99),rgba(11,15,16,.98));
  border-top:1px solid rgba(90,74,30,.45);
  border-bottom:1px solid rgba(90,74,30,.55);
  box-shadow:0 40px 70px -40px rgba(0,0,0,.95);
  z-index:58;
  animation:layer-drop 400ms var(--ease) both;
}
@keyframes layer-drop{from{opacity:0;transform:translateY(-10px);}to{opacity:1;transform:none;}}
.more-inner{padding-block:34px 38px;}
.more-eyebrow{margin-bottom:20px;}
.more-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:clamp(16px,2vw,28px);
}
.more-item{
  border-top:1px solid rgba(90,74,30,.5);
  padding-top:14px;
}
.more-link{display:block;transition:color 240ms var(--ease);}
.more-item-label{
  display:block;
  font-family:var(--font-display);font-weight:800;
  font-size:19px;letter-spacing:-.01em;color:var(--paper);
}
.more-item-desc{display:block;margin-top:6px;font-size:13px;line-height:1.8;color:var(--mist);}
.more-link:hover .more-item-label{color:var(--gold-light);}
.more-link:hover .more-item-desc{color:#C8C6BE;}
.more-cta{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin-top:28px;padding-top:22px;
  border-top:1px solid rgba(90,74,30,.35);
}
.more-note{font-size:13px;color:var(--mist);}

/* scroll progress */
.scroll-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  transform:scaleX(var(--progress,0));
  transform-origin:left center;
  background:linear-gradient(90deg,var(--ripple),var(--gold));
  transition:transform 120ms linear;
  pointer-events:none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  margin-top:clamp(72px,10vw,140px);
  background:linear-gradient(180deg,rgba(11,15,16,0),var(--abyss) 24%,var(--ink));
  border-top:1px solid rgba(90,74,30,.45);
}
.footer-inner{
  display:grid;
  grid-template-columns:1.1fr 2fr 1fr;
  gap:clamp(28px,4vw,56px);
  padding-block:clamp(48px,6vw,76px) 42px;
}
.footer-brand{max-width:32ch;}
.footer-name{
  font-family:var(--font-display);font-weight:800;
  font-size:22px;letter-spacing:-.01em;color:var(--paper);
}
.footer-latin{
  margin-top:8px;
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--mist);
}
.footer-note{margin-top:12px;font-size:13.5px;line-height:1.85;color:var(--mist);}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.4vw,32px);}
.footer-col-title{
  font-size:13px;font-weight:600;letter-spacing:.16em;
  color:var(--gold-light);
}
.footer-col ul{margin-top:14px;}
.footer-col li + li{margin-top:9px;}
.footer-link{
  font-size:14.5px;color:var(--mist);
  transition:color 240ms var(--ease);
}
.footer-link:hover{color:var(--gold-light);}
.footer-meta{font-size:13px;color:var(--mist);}
.footer-version{color:var(--paper);}
.footer-version .mono{color:var(--gold-light);}
.footer-updated{margin-top:10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.footer-meta .footer-note{margin-top:10px;}

.footer-legal{
  padding-block:18px;
  border-top:1px solid rgba(90,74,30,.35);
}
.legal-list{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:8px 22px;
  font-size:13px;color:var(--mist);
}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding-block:16px 40px;
  border-top:1px solid rgba(90,74,30,.22);
  font-size:12.5px;letter-spacing:.02em;color:rgba(154,165,163,.85);
}
.footer-lang{color:rgba(230,214,155,.75);letter-spacing:.16em;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1120px){
  .nav-pill{padding:8px 12px;font-size:14px;}
  .span-main{grid-column:1 / 9;}
  .span-note{grid-column:10 / 13;}
}

@media (max-width:900px){
  :root{--header-h:66px;}
  .header-tools{margin-left:auto;}
  .nav-toggle{display:inline-flex;}

  .nav-primary{
    position:fixed;left:0;right:0;top:0;
    margin:0;
    padding:calc(var(--header-h) + 22px) var(--gutter) 28px;
    background:rgba(15,32,36,.985);
    border-bottom:1px solid rgba(90,74,30,.6);
    box-shadow:0 40px 70px -40px rgba(0,0,0,.95);
    z-index:58;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
  }
  .nav-primary[data-open]{opacity:1;visibility:visible;transform:none;}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px;}
  .nav-pill{
    display:block;padding:15px 18px;
    border-color:rgba(90,74,30,.4);
    border-radius:16px;
    font-size:17px;
  }
  body.is-nav-open{overflow:hidden;}

  .nav-primary .nav-list > li{
    opacity:0;transform:translateY(-6px);
    transition:opacity 240ms var(--ease),transform 240ms var(--ease);
  }
  .nav-primary[data-open] .nav-list > li{opacity:1;transform:none;}
  .nav-primary[data-open] .nav-list > li:nth-child(1){transition-delay:40ms;}
  .nav-primary[data-open] .nav-list > li:nth-child(2){transition-delay:100ms;}
  .nav-primary[data-open] .nav-list > li:nth-child(3){transition-delay:160ms;}
  .nav-primary[data-open] .nav-list > li:nth-child(4){transition-delay:220ms;}
  .nav-primary[data-open] .nav-list > li:nth-child(5){transition-delay:280ms;}
  .nav-primary[data-open] .nav-list > li:nth-child(6){transition-delay:340ms;}

  .more-grid{grid-template-columns:repeat(2,1fr);}
  .footer-inner{grid-template-columns:1fr;gap:34px;}
  .span-main,.span-note{grid-column:1 / -1;}
}

@media (max-width:640px){
  body{font-size:16px;}
  .shell{width:min(var(--shell),100% - 36px);}
  .brand-latin{display:none;}
  .layer-toggle{padding:9px 12px;font-size:12.5px;}
  .more-grid{grid-template-columns:1fr;gap:18px;}
  .footer-cols{grid-template-columns:repeat(2,1fr);gap:24px;}
  .footer-bottom{justify-content:flex-start;}
  .legal-list{flex-direction:column;align-items:flex-start;gap:6px;}
}

/* ============================================================
   MOTION PREFERENCES
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  .js-loaded [data-reveal]{opacity:1;transform:none;}
  .scroll-progress{transition:none;}
  .nav-primary .nav-list > li{opacity:1;transform:none;}
}