/* =========================================================
   皇冠现金官网 · 夜色路标 Site Kit
   /assets/site.css —— 重置 / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ========================================================= */

/* 1. 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{list-style:none;padding:0}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
[hidden]{display:none !important}

/* 2. Tokens ----------------------------------------------- */
:root{
  --ink:#0B1B2B;
  --ink-deep:#070F18;
  --panel:#111820;
  --panel-2:#0E1621;
  --gold:#D4AF37;
  --gold-light:#E8D18C;
  --gold-deep:#8C6B1F;
  --orange:#FF6B35;
  --green:#2E8B57;
  --green-light:#7FD3A1;
  --silver:#C0C7D1;
  --frost:#F5F7FA;
  --slate:#4A5A6A;
  --line:rgba(192,199,209,.18);
  --line-soft:rgba(192,199,209,.10);
  --line-strong:rgba(212,175,55,.5);
  --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:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --shadow-hard:8px 8px 0 rgba(0,0,0,.35);
  --shadow-gold:8px 8px 0 rgba(212,175,55,.16);
  --ease:0.2s ease;
  --wrap:1200px;
}

/* 3. 基础排版与画布 ---------------------------------------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 84% -10%, rgba(212,175,55,.16), transparent 62%),
    radial-gradient(760px 420px at 6% 14%, rgba(46,139,87,.10), transparent 66%),
    repeating-linear-gradient(102deg, rgba(192,199,209,.05) 0 2px, transparent 2px 96px);
  background-repeat:no-repeat,no-repeat,repeat;
  color:var(--frost);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{line-height:1.18;font-weight:900;letter-spacing:.04em}
h1{font-size:clamp(2rem,4.4vw,3.4rem);letter-spacing:.06em}
h2{font-size:clamp(1.5rem,2.6vw,2.2rem)}
h3{font-size:clamp(1.1rem,1.6vw,1.35rem)}
p{max-width:74ch}
strong{color:var(--gold-light);font-weight:800}

#main-content{display:block;scroll-margin-top:130px}
:focus-visible{outline:2px dashed var(--gold);outline-offset:3px}

.rs-container{width:min(var(--wrap),calc(100% - 2rem));margin-inline:auto}
.rs-mono{font-family:var(--font-mono);font-size:.82em;letter-spacing:.06em;font-variant-numeric:tabular-nums}

/* 4. Skip link -------------------------------------------- */
.rs-skip-link{
  position:absolute;left:.9rem;top:-120px;z-index:200;
  padding:.7rem 1.1rem;
  background:var(--gold);color:#120E02;
  font-weight:900;letter-spacing:.12em;font-size:.85rem;
  border:2px solid #120E02;
  transition:top var(--ease);
}
.rs-skip-link:focus{top:.9rem}

/* 5. Header ----------------------------------------------- */
.rs-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,15,24,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.rs-scroll-progress{height:3px;background:rgba(192,199,209,.14);overflow:hidden}
.rs-scroll-progress__bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold) 55%,var(--gold-light));
  transition:width .12s linear;
}

/* 5.1 命令栏编码条 */
.rs-utility{
  border-bottom:1px solid var(--line-soft);
  background:linear-gradient(90deg,rgba(212,175,55,.07),transparent 55%);
}
.rs-utility__inner{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.4rem 0;
}
.rs-utility__meta,
.rs-utility__status{
  display:flex;align-items:center;flex-wrap:wrap;gap:.55rem;
  margin:0;max-width:none;
  color:var(--slate);
  font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;
}
.rs-utility__meta .rs-mono{color:var(--silver);font-size:.72rem}
.rs-utility__sep{width:26px;height:2px;background:repeating-linear-gradient(90deg,var(--gold) 0 6px,transparent 6px 12px)}

/* 5.2 状态标签（金=已同步 / 橙=待确认 / 绿=可下载） */
.rs-status{
  display:inline-flex;align-items:center;gap:.42rem;
  padding:.2rem .58rem;
  border:1px solid currentColor;
  font-family:var(--font-mono);
  font-size:.66rem;letter-spacing:.14em;line-height:1.5;
  white-space:nowrap;
}
.rs-status::before{content:"";width:6px;height:6px;background:currentColor;display:block}
.rs-status--sync{color:var(--gold-light);border-color:rgba(212,175,55,.55);background:rgba(212,175,55,.10)}
.rs-status--pending{color:var(--orange);border-color:rgba(255,107,53,.55);background:rgba(255,107,53,.10)}
.rs-status--ready{color:var(--green-light);border-color:rgba(46,139,87,.6);background:rgba(46,139,87,.14)}

/* 5.3 品牌与主导航 */
.rs-bar{border-bottom:2px solid var(--line-strong);transition:box-shadow var(--ease)}
.rs-header.is-scrolled .rs-bar{box-shadow:0 16px 34px rgba(0,0,0,.5)}
.rs-bar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:1.5rem;min-height:78px;padding:.5rem 0;
}
.rs-brand{display:flex;align-items:center;gap:.8rem;flex:0 0 auto}
.rs-brand__mark{
  display:grid;place-items:center;
  width:44px;height:44px;
  transform:skewX(-9deg);
  background:linear-gradient(140deg,var(--gold-light),var(--gold) 45%,var(--gold-deep));
  color:#150F02;font-weight:900;font-size:1.25rem;
  border:2px solid #150F02;
  box-shadow:5px 5px 0 rgba(212,175,55,.22);
}
.rs-brand__text{display:flex;flex-direction:column;line-height:1.25}
.rs-brand__name{font-weight:900;font-size:1.06rem;letter-spacing:.18em;color:var(--frost)}
.rs-brand__sub{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.24em;
  color:var(--slate);text-transform:uppercase;margin-top:.15rem;
}
.rs-brand:hover .rs-brand__name{color:var(--gold-light)}

.rs-nav{display:flex;justify-content:flex-end;flex:1 1 auto}
.rs-nav__list{display:flex;align-items:center;gap:.18rem;flex-wrap:nowrap}
.rs-nav__item{flex:0 0 auto}
.rs-nav__link{
  display:inline-flex;align-items:baseline;gap:.42rem;
  padding:.55rem .72rem;
  border:1px solid transparent;
  font-size:.92rem;font-weight:800;letter-spacing:.12em;
  color:var(--silver);
  transition:color var(--ease),border-color var(--ease),background-color var(--ease),transform var(--ease);
}
.rs-nav__index{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.06em;
  color:var(--gold-deep);transition:color var(--ease);
}
.rs-nav__label{display:inline-block}
.rs-nav__link:hover,
.rs-nav__link:focus-visible{
  color:var(--gold-light);
  border-color:var(--line-strong);
  background:rgba(212,175,55,.09);
  transform:translateY(-2px);
}
.rs-nav__link:hover .rs-nav__index,
.rs-nav__link:focus-visible .rs-nav__index{color:var(--gold)}
.rs-nav__link[aria-current="page"]{
  color:var(--gold-light);
  border-color:var(--gold);
  background:linear-gradient(180deg,rgba(212,175,55,.16),rgba(212,175,55,.03));
  box-shadow:inset 0 -3px 0 var(--gold);
}
.rs-nav__link[aria-current="page"] .rs-nav__index{color:var(--gold)}

/* 5.4 移动索引开关 */
.rs-nav-toggle{
  display:none;align-items:center;gap:.6rem;
  padding:.5rem .75rem;
  border:2px solid var(--line-strong);
  color:var(--gold-light);
  font-size:.72rem;font-weight:900;letter-spacing:.24em;
  box-shadow:4px 4px 0 rgba(0,0,0,.45);
  transition:border-color var(--ease),background-color var(--ease);
}
.rs-nav-toggle:hover{border-color:var(--gold);background:rgba(212,175,55,.12)}
.rs-nav-toggle__bars{display:flex;flex-direction:column;justify-content:space-between;width:20px;height:13px}
.rs-nav-toggle__bars span{display:block;height:2px;background:currentColor;transition:transform var(--ease),opacity var(--ease)}
.rs-nav-toggle[aria-expanded="true"] .rs-nav-toggle__bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.rs-nav-toggle[aria-expanded="true"] .rs-nav-toggle__bars span:nth-child(2){opacity:0}
.rs-nav-toggle[aria-expanded="true"] .rs-nav-toggle__bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* 6. Footer ----------------------------------------------- */
.rs-footer{
  position:relative;
  margin-top:clamp(3rem,7vw,5.5rem);
  background:
    radial-gradient(700px 300px at 88% 0%, rgba(212,175,55,.13), transparent 65%),
    var(--ink-deep);
  border-top:2px solid var(--line-strong);
  color:var(--silver);
  font-size:.94rem;
}
.rs-footer__lane{
  height:6px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 44px,transparent 44px 76px);
  opacity:.5;
}
.rs-footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:clamp(1.5rem,3vw,2.75rem);
  padding:clamp(2.5rem,5vw,3.75rem) 0 clamp(1.75rem,3vw,2.5rem);
}
.rs-footer__col--brand{border-left:3px solid var(--gold);padding-left:1.15rem}
.rs-footer__brand{
  font-size:1.15rem;font-weight:900;letter-spacing:.2em;color:var(--frost);
  margin:0;max-width:100%;
}
.rs-footer__sub{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.24em;
  color:var(--gold-deep);text-transform:uppercase;
  margin:.35rem 0 0;max-width:100%;
}
.rs-footer__note{margin:.9rem 0 0;color:var(--slate);font-size:.86rem;max-width:32ch}
.rs-footer__tags{display:flex;flex-wrap:wrap;gap:.4rem;margin:1.1rem 0 0;max-width:100%}
.rs-footer__title{
  display:flex;align-items:center;gap:.6rem;
  font-size:.74rem;font-weight:900;letter-spacing:.28em;
  color:var(--gold);text-transform:uppercase;
  margin:0 0 1rem;
}
.rs-footer__title::after{content:"";flex:1 1 auto;height:1px;background:var(--line);min-width:18px}
.rs-footer__list li{margin:0}
.rs-footer__link{
  display:inline-block;
  padding:.28rem 0;
  color:var(--silver);
  border-bottom:1px solid transparent;
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.rs-footer__link:hover,
.rs-footer__link:focus-visible{color:var(--gold-light);border-bottom-color:var(--gold);transform:translateX(3px)}
.rs-contact{display:grid;gap:.7rem}
.rs-contact__row{
  display:grid;grid-template-columns:5.2rem 1fr;gap:.6rem;
  padding-bottom:.6rem;border-bottom:1px dashed var(--line);
}
.rs-contact__row:last-child{border-bottom:0;padding-bottom:0}
.rs-contact__label{color:var(--slate);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase}
.rs-contact__value{color:var(--frost);font-size:.88rem;word-break:break-word}
.rs-contact__value.rs-mono{color:var(--gold-light)}

.rs-legal{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem 1.5rem;
  padding:1.1rem 0 1.6rem;
  border-top:1px solid var(--line);
}
.rs-legal__copy{margin:0;max-width:none;color:var(--slate);font-size:.78rem;letter-spacing:.08em}
.rs-legal__links{display:flex;flex-wrap:wrap;gap:1.1rem;margin:0;max-width:none}
.rs-legal__links .rs-footer__link{font-size:.78rem;letter-spacing:.12em}

/* 7. 返回顶部 ---------------------------------------------- */
.rs-to-top{
  position:fixed;right:1.1rem;bottom:1.1rem;z-index:90;
  padding:.6rem .9rem;
  background:var(--gold);color:#150F02;
  font-weight:900;font-size:.74rem;letter-spacing:.18em;
  border:2px solid #150F02;
  box-shadow:5px 5px 0 rgba(0,0,0,.5);
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.rs-to-top:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 rgba(0,0,0,.55);background:var(--gold-light)}

/* 8. 通用布局与组件 ---------------------------------------- */
.rs-section{padding:clamp(2.75rem,6vw,5rem) 0;position:relative}
.rs-section__head{margin-bottom:clamp(1.5rem,3vw,2.5rem)}
.rs-section__label{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.28em;
  color:var(--gold);text-transform:uppercase;margin:0 0 .9rem;
}
.rs-section__label::before{content:"";width:34px;height:2px;background:var(--gold)}
.rs-section__title{margin:0 0 .8rem;letter-spacing:.05em}
.rs-lead{margin:0;color:var(--silver);font-size:1.02rem;max-width:62ch}

.rs-grid{display:grid;gap:1.4rem}
.rs-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.rs-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

.rs-split{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.65fr);
  gap:clamp(1.5rem,4vw,4rem);
  align-items:start;
}
.rs-split__aside{position:relative;padding-top:.4rem}
.rs-split__main{display:grid;gap:1.4rem}

.rs-card{
  position:relative;
  padding:1.5rem 1.5rem 1.6rem;
  background:linear-gradient(180deg,var(--panel),rgba(17,24,32,.86));
  border:2px solid var(--line);
  box-shadow:var(--shadow-hard);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rs-card:hover{transform:translate(-2px,-2px);border-color:var(--gold);box-shadow:var(--shadow-gold)}
.rs-card__num{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;
  color:var(--gold);display:block;margin-bottom:.6rem;
}
.rs-card__title{margin:0 0 .5rem;font-size:1.08rem;letter-spacing:.08em;color:var(--frost)}
.rs-card__text{margin:0;color:var(--silver);font-size:.94rem}

.rs-drawer{
  border:2px solid var(--line);
  background:var(--panel-2);
  transition:border-color var(--ease);
}
.rs-drawer[open]{border-color:var(--line-strong)}
.rs-drawer__summary{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1rem 1.25rem;
  cursor:pointer;list-style:none;
  font-weight:800;letter-spacing:.12em;color:var(--frost);
}
.rs-drawer__summary::-webkit-details-marker{display:none}
.rs-drawer__summary::after{
  content:"＋";font-family:var(--font-mono);color:var(--gold);font-size:1rem;
  transition:transform var(--ease);
}
.rs-drawer[open] .rs-drawer__summary::after{content:"－"}
.rs-drawer__summary:hover{background:rgba(212,175,55,.07);color:var(--gold-light)}
.rs-drawer__body{padding:0 1.25rem 1.35rem;color:var(--silver);font-size:.94rem}

.rs-media{
  position:relative;overflow:hidden;
  border:2px solid var(--line);
  background:
    linear-gradient(135deg,rgba(212,175,55,.10),transparent 45%),
    repeating-linear-gradient(45deg,rgba(192,199,209,.06) 0 8px,transparent 8px 16px),
    var(--panel-2);
  aspect-ratio:16/9;
}
.rs-media--wide{aspect-ratio:21/9}
.rs-media--square{aspect-ratio:1/1}
.rs-media--tall{aspect-ratio:3/4}
.rs-media__img{width:100%;height:100%;object-fit:cover}
.rs-media__caption{
  position:absolute;left:0;bottom:0;right:0;
  padding:.6rem .85rem;
  background:linear-gradient(0deg,rgba(7,15,24,.92),transparent);
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;
  color:var(--gold-light);
}

.rs-btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.85rem 1.5rem;
  font-weight:900;font-size:.92rem;letter-spacing:.16em;
  border:2px solid var(--gold);
  box-shadow:5px 5px 0 rgba(0,0,0,.45);
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
}
.rs-btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 rgba(0,0,0,.5)}
.rs-btn--primary{background:linear-gradient(140deg,var(--gold-light),var(--gold) 45%,var(--gold-deep));color:#150F02}
.rs-btn--primary:hover{background:linear-gradient(140deg,#F3E2AE,var(--gold-light) 50%,var(--gold))}
.rs-btn--ghost{background:transparent;color:var(--gold-light);border-color:var(--line-strong)}
.rs-btn--ghost:hover{border-color:var(--gold);background:rgba(212,175,55,.12)}
.rs-btn--signal{background:transparent;color:var(--green-light);border-color:rgba(46,139,87,.7)}
.rs-btn--signal:hover{background:rgba(46,139,87,.16);border-color:var(--green)}

.rs-breadcrumb{padding:1.05rem 0;border-bottom:1px solid var(--line-soft);font-size:.78rem;letter-spacing:.12em;color:var(--slate)}
.rs-breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin:0}
.rs-breadcrumb__item{display:inline-flex;align-items:center;gap:.5rem}
.rs-breadcrumb__item a{color:var(--silver);border-bottom:1px solid transparent;transition:color var(--ease),border-color var(--ease)}
.rs-breadcrumb__item a:hover{color:var(--gold-light);border-bottom-color:var(--gold)}
.rs-breadcrumb__item[aria-current="page"]{color:var(--gold)}
.rs-breadcrumb__sep{color:var(--gold-deep);font-family:var(--font-mono)}

.rs-tag{
  display:inline-block;
  padding:.18rem .5rem;
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;
  color:var(--gold-light);
}

.rs-lane{height:2px;border:0;margin:clamp(2rem,4vw,3rem) 0;background:repeating-linear-gradient(90deg,var(--line-strong) 0 34px,transparent 34px 60px)}

.rs-surface--frost{
  background:linear-gradient(180deg,var(--frost),#E7EBF1);
  color:var(--ink);
  border-top:2px solid var(--gold);
  border-bottom:2px solid var(--gold);
}
.rs-surface--frost .rs-section__title,
.rs-surface--frost .rs-card__title{color:var(--ink)}
.rs-surface--frost .rs-lead,
.rs-surface--frost .rs-card__text{color:#33414F}
.rs-surface--frost .rs-card{background:#FFFFFF;border-color:rgba(11,27,43,.16);box-shadow:8px 8px 0 rgba(11,27,43,.12)}
.rs-surface--frost .rs-card:hover{border-color:var(--gold);box-shadow:8px 8px 0 rgba(212,175,55,.28)}

/* 9. 滚动显现 ---------------------------------------------- */
.js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* 10. 响应式 ----------------------------------------------- */
@media (max-width:1080px){
  .rs-footer__grid{grid-template-columns:1fr 1fr;gap:2rem}
  .rs-footer__col--brand{grid-column:1 / -1}
  .rs-nav__link{padding:.5rem .55rem;font-size:.86rem}
}
@media (max-width:900px){
  body{font-size:16px}
  .rs-utility__status{display:none}
  .rs-nav-toggle{display:inline-flex}
  .rs-bar__inner{min-height:66px;gap:1rem}
  .rs-brand__mark{width:38px;height:38px;font-size:1.05rem}
  .rs-brand__sub{letter-spacing:.16em}
  .rs-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    background:var(--panel-2);
    border-top:2px solid var(--gold);
    border-bottom:2px solid var(--gold);
    box-shadow:0 24px 44px rgba(0,0,0,.6);
    padding:.35rem 0 .6rem;
    max-height:calc(100vh - 100%);
    overflow-y:auto;
  }
  .rs-nav[data-open]{display:block}
  .rs-nav__list{display:block;width:100%}
  .rs-nav__item{border-bottom:1px solid var(--line)}
  .rs-nav__item:last-child{border-bottom:0}
  .rs-nav__link{
    display:flex;align-items:baseline;gap:.7rem;
    width:100%;padding:.95rem 1.25rem;
    border:0;border-left:3px solid transparent;
  }
  .rs-nav__link:hover,
  .rs-nav__link:focus-visible{transform:none;border-color:transparent;border-left-color:var(--gold)}
  .rs-nav__link[aria-current="page"]{
    border-left-color:var(--gold);
    box-shadow:none;
    background:linear-gradient(90deg,rgba(212,175,55,.18),transparent);
  }
  .rs-split{grid-template-columns:1fr;gap:1.75rem}
  .rs-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rs-legal{flex-direction:column;align-items:flex-start}
}
@media (max-width:620px){
  .rs-container{width:calc(100% - 1.75rem)}
  .rs-grid--2,.rs-grid--3{grid-template-columns:1fr}
  .rs-footer__grid{grid-template-columns:1fr;gap:1.75rem}
  .rs-footer__col--brand{border-left:0;border-top:3px solid var(--gold);padding-left:0;padding-top:1rem}
  .rs-contact__row{grid-template-columns:1fr;gap:.15rem}
  .rs-card{padding:1.15rem 1.15rem 1.25rem;box-shadow:6px 6px 0 rgba(0,0,0,.35)}
  .rs-to-top{right:.7rem;bottom:.7rem;padding:.55rem .75rem;letter-spacing:.12em}
}

/* 11. 偏好与可访问性 --------------------------------------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    scroll-behavior:auto !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .rs-scroll-progress__bar{transition:none}
  .rs-nav__link:hover,.rs-btn:hover,.rs-card:hover,.rs-to-top:hover,.rs-footer__link:hover{transform:none}
}