/* =========================================================
   皇家娱乐在线 · 共享样式 /assets/site.css
   暗色奢华 · 鎏金骨架 · 非对称编辑部版式
   ========================================================= */

:root{
  --ink:#0B0B0F;
  --ink-2:#101827;
  --ink-3:#1A1610;
  --gold:#D4A537;
  --gold-hi:#F2D27A;
  --royal:#5B2E9E;
  --cyan:#31D5C8;
  --cinnabar:#C8352B;
  --paper:#F5EFE3;
  --metal:#8A8577;

  --line:rgba(212,165,55,.28);
  --line-strong:rgba(212,165,55,.62);
  --line-soft:rgba(212,165,55,.15);

  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-body:"Noto Sans SC","Source Han 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(16px,4vw,40px);
  --header-h:64px;
  --ease:cubic-bezier(.22,1,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 20px)}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--font-display);font-weight:900;line-height:1.16;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
::selection{background:var(--gold);color:var(--ink)}
#main-content{scroll-margin-top:calc(var(--header-h) + 16px)}

/* ---------- 容器与文本级 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}

.skip-link{
  position:fixed;top:10px;left:10px;z-index:300;
  transform:translateY(-180%);
  background:var(--gold);color:var(--ink);
  padding:10px 18px;font-size:14px;font-weight:700;letter-spacing:.06em;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.display-1{font-size:clamp(38px,7vw,84px);line-height:1.04;letter-spacing:-.02em}
.display-2{font-size:clamp(28px,4.4vw,46px);line-height:1.1}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--gold);
}
.lede{font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:rgba(245,239,227,.84);max-width:64ch}
.mono{font-family:var(--font-mono)}
.num{
  font-family:var(--font-mono);color:var(--gold-hi);
  border-bottom:2px solid var(--gold);padding-bottom:2px;
}
.text-gold{color:var(--gold-hi)}
.text-metal{color:var(--metal)}
.stack{display:flex;flex-direction:column;gap:16px}
.rich-text{font-size:16.5px;color:rgba(245,239,227,.86)}
.rich-text p + p{margin-top:1em}
.rich-text ul{list-style:disc;padding-left:1.3em;margin-top:.8em}
.rich-text li{margin-top:.45em}
.rich-text strong{color:var(--paper)}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(11,11,15,.95);
  border-bottom:1px solid var(--line);
}
.header-utility{
  overflow:hidden;max-height:80px;
  background:linear-gradient(90deg,var(--ink-2),var(--ink) 70%);
  border-bottom:1px solid var(--line-soft);
  transition:max-height .32s var(--ease),opacity .22s linear;
}
.site-header[data-scrolled] .header-utility{max-height:0;opacity:0;pointer-events:none}
.header-utility-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px 20px;
  padding-block:9px;font-size:12.5px;letter-spacing:.08em;
}
.utility-sign{color:var(--paper);font-weight:600}
.utility-note{color:var(--metal)}
.utility-status{
  margin-left:auto;display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
}
.status-dot{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 12px rgba(49,213,200,.85);
  animation:status-pulse 3.2s var(--ease) infinite;
}
@keyframes status-pulse{0%,100%{opacity:1}50%{opacity:.35}}
.status-text{color:var(--cyan)}

.header-bar{position:relative;background:transparent}
.header-bar-inner{display:flex;align-items:center;gap:14px;min-height:62px}

.site-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;align-items:center;gap:clamp(10px,2.2vw,30px)}
.nav-link{
  position:relative;display:block;padding:10px 0;
  font-size:15px;letter-spacing:.03em;color:var(--paper);
  transition:color .2s linear;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left center;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--gold-hi)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--gold-hi)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--gold-hi)}

.nav-cta{margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:46px;height:46px;flex:0 0 auto;
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;
  transition:border-color .2s linear,background .2s linear;
}
.nav-toggle:hover{border-color:var(--gold-hi);background:rgba(212,165,55,.08)}
.nav-toggle-lines{position:relative;display:block;width:20px;height:2px;background:var(--gold)}
.nav-toggle-lines::before,
.nav-toggle-lines::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--gold);
  transition:transform .24s var(--ease),top .24s var(--ease),background .2s linear;
}
.nav-toggle-lines::before{top:-6px}
.nav-toggle-lines::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-lines::after{top:0;transform:rotate(-45deg)}

.header-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(212,165,55,.16);
}
.progress-fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--royal),var(--gold) 55%,var(--gold-hi));
  transition:width .12s linear;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border:1px solid var(--line-strong);
  background:var(--ink-3);color:var(--paper);
  font-size:14px;font-weight:600;letter-spacing:.06em;
  transition:transform .24s var(--ease),background .24s linear,color .24s linear,
             border-color .24s linear,box-shadow .24s var(--ease);
}
.btn:hover{
  transform:translateY(-2px);border-color:var(--gold-hi);
  box-shadow:0 16px 30px -20px rgba(212,165,55,.9);
}
.btn--gold{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.btn--gold:hover{background:var(--gold-hi);color:var(--ink)}
.btn--ghost{background:transparent;color:var(--gold-hi);border-color:var(--line-strong)}
.btn--ghost:hover{background:rgba(212,165,55,.1)}
.btn--block{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{border-bottom:1px solid var(--line-soft);background:var(--ink-2)}
.breadcrumb-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding-block:16px;font-family:var(--font-mono);
  font-size:12.5px;letter-spacing:.08em;color:var(--metal);
}
.breadcrumb-link{color:var(--metal);transition:color .2s linear}
.breadcrumb-link:hover{color:var(--gold-hi)}
.breadcrumb-sep{color:rgba(212,165,55,.5)}
.breadcrumb-current{color:var(--gold)}

/* ---------- 区块 ---------- */
.section{padding-block:clamp(40px,6vw,80px)}
.section + .section{border-top:1px solid var(--line-soft)}
.section--tint{background:var(--ink-2)}
.section--inset{background:var(--ink-3)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px 18px;
  margin-bottom:clamp(22px,3vw,40px);
}
.section-index{
  font-family:var(--font-mono);font-size:13px;letter-spacing:.18em;
  color:var(--gold);padding-bottom:6px;transition:color .2s linear;
}
.section-head:hover .section-index{color:var(--cyan)}
.section-title{flex:1 1 300px;font-size:clamp(24px,3.4vw,38px)}
.section-lead{flex:1 1 100%;max-width:64ch;font-size:15.5px;color:var(--metal)}

.rule-slant{
  height:1px;margin-block:clamp(24px,4vw,48px);
  background:linear-gradient(90deg,transparent,rgba(212,165,55,.55) 12%,rgba(212,165,55,.55) 88%,transparent);
  transform:rotate(-1.2deg);transform-origin:left center;
}
.slant-guide{
  display:block;width:120px;height:1px;margin-block:18px;
  background:linear-gradient(90deg,var(--gold),transparent);
  transform:rotate(-12deg);transform-origin:left center;
}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:clamp(18px,2.4vw,32px)}
.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(0,62fr) minmax(0,38fr)}
.grid--split-rev{grid-template-columns:minmax(0,38fr) minmax(0,62fr)}

/* ---------- 卡片 ---------- */
.card{
  position:relative;
  background:var(--ink-3);
  border:1px solid var(--line);
  padding:clamp(20px,2.6vw,30px);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .24s linear;
}
.card:hover{
  transform:translateY(-6px);
  border-color:var(--line-strong);
  box-shadow:0 24px 46px -28px rgba(212,165,55,.9);
}
.card-topline{position:absolute;top:0;left:0;width:54px;height:3px;background:var(--gold);transition:background .24s linear}
.card--royal .card-topline{background:var(--royal)}
.card--gold .card-topline{background:var(--gold)}
.card--cyan .card-topline{background:var(--cyan)}
.card:hover .card-topline{background:var(--cyan)}
.card-index{
  display:block;margin-bottom:12px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--gold);
  transition:color .2s linear;
}
.card:hover .card-index{color:var(--cyan)}
.card-title{font-size:20px;margin-bottom:10px}
.card-text{font-size:15.5px;color:rgba(245,239,227,.82)}
.card-meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--metal);
}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border:1px solid var(--line);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--metal);
}
.tag--gold{color:var(--gold-hi);border-color:rgba(242,210,122,.5)}
.tag--royal{color:#C9AEF5;border-color:rgba(91,46,158,.9);background:rgba(91,46,158,.24)}
.tag--cyan{color:var(--cyan);border-color:rgba(49,213,200,.45)}
.tag--red{color:#E0928B;border-color:rgba(200,53,43,.7);background:rgba(200,53,43,.16)}

/* ---------- 索引表 ---------- */
.index-list{border-top:1px solid var(--line)}
.index-item{
  display:grid;grid-template-columns:58px minmax(0,1fr) auto;
  gap:6px 16px;align-items:baseline;
  padding:16px 4px;border-bottom:1px solid var(--line-soft);
  transition:background .24s linear,padding-left .24s var(--ease);
}
.index-item:hover{background:rgba(212,165,55,.055);padding-left:14px}
.index-num{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--gold)}
.index-name{font-size:16px;font-weight:600}
.index-note{display:block;margin-top:4px;font-size:13.5px;font-weight:400;color:var(--metal)}
.index-value{
  font-family:var(--font-mono);font-size:15px;color:var(--gold-hi);
  border-bottom:2px solid var(--gold);padding-bottom:2px;white-space:nowrap;
}

/* ---------- 费用数字 ---------- */
.price{
  display:inline-block;line-height:1.1;
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(26px,4vw,40px);color:var(--gold-hi);
  border-bottom:2px solid var(--gold);padding-bottom:4px;
}
.price-note{
  display:block;margin-top:10px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;color:var(--metal);
}

/* ---------- 图片容器 ---------- */
.media-frame{position:relative}
.media{
  position:relative;overflow:hidden;
  background:var(--ink-3);border:1px solid var(--line);
  aspect-ratio:16 / 9;
}
.media--wide{aspect-ratio:21 / 9}
.media--tall{aspect-ratio:3 / 4}
.media--square{aspect-ratio:1 / 1}
.media img{
  width:100%;height:100%;object-fit:cover;object-position:center;
  filter:saturate(.95) contrast(1.06);
  transition:transform .5s var(--ease);
}
.media:hover img{transform:scale(1.04)}
.media-badge{
  position:absolute;left:0;top:0;z-index:2;
  padding:5px 12px;background:var(--gold);color:var(--ink);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
}
.media-caption{
  margin-top:10px;font-family:var(--font-mono);
  font-size:12.5px;letter-spacing:.06em;color:var(--metal);
}

/* ---------- 手风琴 ---------- */
.accordion{border-top:1px solid var(--line)}
.accordion-item{border-bottom:1px solid var(--line-soft)}
.accordion-trigger{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;text-align:left;font-size:16.5px;font-weight:600;
  transition:color .2s linear;
}
.accordion-trigger:hover{color:var(--gold-hi)}
.accordion-icon{position:relative;flex:0 0 auto;width:14px;height:14px}
.accordion-icon::before,
.accordion-icon::after{
  content:"";position:absolute;left:0;top:50%;width:14px;height:1.5px;
  background:var(--gold);transform:translateY(-50%);
}
.accordion-icon::after{transform:translateY(-50%) rotate(90deg);transition:transform .24s var(--ease)}
.accordion-trigger[aria-expanded="true"] .accordion-icon::after{transform:translateY(-50%) rotate(0deg)}
.accordion-panel{padding:0 4px 20px;font-size:15.5px;color:rgba(245,239,227,.82)}
.accordion-panel[hidden]{display:none}

/* ---------- 悬浮章节索引 ---------- */
.spy-nav{
  position:sticky;top:calc(var(--header-h) + 24px);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;
}
.spy-title{
  margin-bottom:12px;font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.2em;color:var(--metal);text-transform:uppercase;
}
.spy-link{
  display:block;padding:8px 0 8px 14px;
  border-left:1px solid rgba(212,165,55,.22);
  color:var(--metal);
  transition:color .2s linear,border-color .2s linear,padding-left .24s var(--ease);
}
.spy-link:hover{color:var(--gold-hi)}
.spy-link[aria-current="true"]{color:var(--gold-hi);border-left-color:var(--gold);padding-left:20px}

/* ---------- 滚动显现 ---------- */
.reveal-init{opacity:0;transform:translateY(8px)}
.reveal-in{opacity:1;transform:none;transition:opacity .28s var(--ease),transform .28s var(--ease)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,96px);
  padding-top:clamp(40px,6vw,72px);
  background:var(--ink-2);
  border-top:1px solid var(--line-strong);
}
.footer-grid{
  display:grid;grid-template-columns:1.15fr 1fr 1fr 1.35fr;
  gap:clamp(20px,3vw,44px);
}
.footer-brand{border-left:2px solid var(--gold);padding-left:18px}
.footer-name{font-family:var(--font-display);font-size:24px;font-weight:900;letter-spacing:.02em}
.footer-slogan{margin-top:8px;font-size:13.5px;letter-spacing:.04em;color:var(--metal)}
.footer-col-title{
  margin-bottom:14px;font-family:var(--font-mono);font-size:12px;
  font-weight:600;letter-spacing:.18em;color:var(--gold);text-transform:uppercase;
}
.footer-links li + li{margin-top:9px}
.footer-links a{
  display:inline-block;font-size:14.5px;color:rgba(245,239,227,.82);
  transition:color .2s linear,padding-left .24s var(--ease);
}
.footer-links a:hover{color:var(--gold-hi);padding-left:6px}
.footer-contact li + li{margin-top:12px}
.contact-row{display:flex;flex-wrap:wrap;gap:4px 10px}
.contact-key{
  flex:0 0 62px;padding-top:2px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--metal);
}
.contact-value{
  font-family:var(--font-mono);font-size:13.5px;color:var(--paper);
  word-break:break-all;
}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:10px 28px;margin-top:clamp(30px,4vw,52px);
  padding-block:20px;border-top:1px solid var(--line-soft);
  font-size:12.5px;letter-spacing:.06em;color:var(--metal);
}
.footer-note{font-family:var(--font-mono);color:rgba(242,210,122,.92)}
.footer-legal{font-family:var(--font-mono)}
.footer-copy{font-family:var(--font-mono)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .grid--split,.grid--split-rev{grid-template-columns:minmax(0,1fr)}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:900px){
  .header-utility{max-height:140px}
  .utility-status{margin-left:0}
  .site-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;z-index:130;
    background:var(--ink-2);
    border-top:1px solid var(--line-strong);
    border-bottom:1px solid var(--line-strong);
    box-shadow:0 34px 60px -34px #000;
    padding:10px max(var(--gutter),calc((100% - var(--shell)) / 2)) 24px;
    max-height:calc(100vh - 120px);overflow-y:auto;
  }
  .site-nav[data-open]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{
    padding:15px 0;font-size:17px;
    border-bottom:1px solid var(--line-soft);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{
    color:var(--gold-hi);padding-left:14px;
    border-left:2px solid var(--gold-hi);
  }
  .nav-toggle{display:inline-flex}
}

@media (max-width:680px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .index-item{grid-template-columns:44px minmax(0,1fr);gap:4px 12px}
  .index-value{grid-column:2;justify-self:start;margin-top:6px}
  .footer-base{flex-direction:column;align-items:flex-start}
}

@media (max-width:600px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
}

@media (max-width:560px){
  .nav-cta{display:none}
}

/* ---------- 焦点与减动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal-init{opacity:1;transform:none}
  .media:hover img{transform:none}
  .card:hover{transform:none}
  .btn:hover{transform:none}
}