/* 壹乐娱乐 · /assets/site.css
   共享外壳：设计令牌、重置、头部、页脚、通用组件 */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --yl-ink:#0B1B33;
  --yl-ink-2:#12284C;
  --yl-gold:#D6A84B;
  --yl-amber:#F0C86A;
  --yl-coral:#FF7A59;
  --yl-jade:#4FAE9B;
  --yl-paper:#F7F4ED;
  --yl-mist:#E8E6E0;
  --yl-warmgray:#B8B3A9;
  --yl-black:#050A12;
  --yl-line:rgba(247,244,237,.12);
  --yl-line-strong:rgba(214,168,75,.38);
  --yl-sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --yl-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --yl-maxw:1200px;
  --yl-narrow:820px;
  --yl-gutter:clamp(18px,4vw,56px);
  --yl-radius:3px;
  --yl-cut:18px;
  --yl-header-h:102px;
}

/* ---------- 2. 重置与基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--yl-ink);
  color:var(--yl-paper);
  font-family:var(--yl-sans);
  font-size:16px;
  line-height:1.82;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
[hidden],.yl-is-filtered{display:none !important}
:focus-visible{outline:2px solid var(--yl-amber);outline-offset:3px;border-radius:2px}
::selection{background:var(--yl-gold);color:var(--yl-black)}
.yl-mono{font-family:var(--yl-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.yl-cut{clip-path:polygon(0 0,calc(100% - var(--yl-cut)) 0,100% var(--yl-cut),100% 100%,var(--yl-cut) 100%,0 calc(100% - var(--yl-cut)))}

/* 跳转链接 */
.yl-skip{
  position:absolute;left:14px;top:-64px;z-index:120;
  padding:10px 18px;
  background:var(--yl-amber);color:var(--yl-black);
  font-family:var(--yl-mono);font-size:12.5px;letter-spacing:.08em;
  border-radius:0 0 10px 10px;
  transition:top .18s ease;
}
.yl-skip:focus{top:0}

/* ---------- 3. 布局骨架 ---------- */
.yl-container{width:100%;max-width:var(--yl-maxw);margin:0 auto;padding:0 var(--yl-gutter)}
.yl-container--narrow{max-width:var(--yl-narrow)}
.yl-section{padding:clamp(48px,7vw,96px) 0}
.yl-section--deep{background:var(--yl-ink)}
.yl-section--mid{background:var(--yl-ink-2)}
.yl-section--light{background:var(--yl-mist);color:var(--yl-ink)}
.yl-section--light .yl-section__lede,
.yl-section--light .yl-card__text,
.yl-section--light .yl-note{color:rgba(11,27,51,.74)}
.yl-section--light .yl-card{background:#fff;border-color:rgba(11,27,51,.12)}
.yl-section--light .yl-card--link:hover{background:#fff;border-color:rgba(214,168,75,.7)}
.yl-section--light .yl-divider{background:linear-gradient(90deg,rgba(11,27,51,.35),rgba(11,27,51,.04))}
.yl-section__head{max-width:74ch;margin-bottom:clamp(22px,3vw,40px)}
.yl-section__num{
  display:inline-block;
  font-family:var(--yl-mono);font-size:11.5px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--yl-gold);
  padding-bottom:10px;margin-bottom:16px;
  border-bottom:2px solid var(--yl-line-strong);
}
.yl-section__title{font-size:clamp(24px,3.6vw,40px);font-weight:900;line-height:1.28;letter-spacing:.01em}
.yl-section__lede{margin-top:12px;font-size:clamp(15px,1.5vw,17px);color:rgba(247,244,237,.76);max-width:62ch}
.yl-lede{font-size:clamp(15.5px,1.6vw,18px);color:rgba(247,244,237,.82);max-width:64ch}
.yl-grid{display:grid;gap:clamp(16px,2.4vw,26px)}
.yl-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.yl-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.yl-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.yl-stack{display:grid;gap:14px}
.yl-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.yl-band{
  height:6px;
  background:linear-gradient(90deg,var(--yl-jade) 0 18%,var(--yl-gold) 18% 48%,var(--yl-coral) 48% 64%,var(--yl-ink-2) 64% 100%);
}
.yl-divider{height:1px;border:0;margin:clamp(26px,4vw,46px) 0;background:linear-gradient(90deg,var(--yl-line-strong),rgba(247,244,237,.04))}

/* ---------- 4. 头部 ---------- */
.yl-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .32s ease,border-color .32s ease,box-shadow .32s ease;
}
.yl-header.is-solid{
  background:rgba(11,27,51,.96);
  border-bottom-color:var(--yl-line-strong);
  box-shadow:0 22px 44px -34px rgba(5,10,18,.95);
}
.yl-header__bar{display:block;position:relative}
.yl-header__inner{
  max-width:var(--yl-maxw);margin:0 auto;
  padding:14px var(--yl-gutter);
  display:flex;align-items:center;gap:clamp(10px,2vw,26px);
}
.yl-brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.yl-brand__mark{
  display:grid;place-items:center;width:40px;height:40px;
  background:linear-gradient(150deg,var(--yl-gold),var(--yl-coral));
  color:var(--yl-black);font-weight:900;font-size:19px;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
}
.yl-brand__body{display:flex;flex-direction:column;line-height:1.25}
.yl-brand__name{font-size:17px;font-weight:800;letter-spacing:.06em}
.yl-brand__sub{font-family:var(--yl-mono);font-size:10.5px;letter-spacing:.08em;color:var(--yl-warmgray)}
.yl-nav{margin-left:auto}
.yl-nav__list{display:flex;align-items:center;gap:clamp(4px,1.1vw,18px)}
.yl-nav__item{display:block}
.yl-nav__link{
  position:relative;display:inline-block;
  padding:10px 4px;
  font-size:14.5px;color:rgba(247,244,237,.78);letter-spacing:.02em;white-space:nowrap;
  transition:color .2s ease;
}
.yl-nav__link::after{
  content:"";position:absolute;left:4px;right:4px;bottom:3px;height:2px;
  background:var(--yl-gold);transform:scaleX(0);transform-origin:left center;
  transition:transform .26s ease;
}
.yl-nav__link:hover{color:var(--yl-paper)}
.yl-nav__link:hover::after{transform:scaleX(1)}
.yl-nav__link[aria-current="page"]{color:var(--yl-amber);font-weight:700}
.yl-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--yl-amber)}
.yl-nav__foot{display:none}
.yl-nav__note{font-family:var(--yl-mono);font-size:12px;color:var(--yl-warmgray);letter-spacing:.04em}
.yl-header__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.yl-header__strip{position:relative;border-top:1px solid rgba(214,168,75,.16);background:rgba(5,10,18,.32)}
.yl-header__stripinner{
  max-width:var(--yl-maxw);margin:0 auto;
  padding:7px var(--yl-gutter);
  display:flex;align-items:center;gap:14px;
  font-family:var(--yl-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--yl-warmgray);
}
.yl-path{white-space:nowrap}
.yl-path__value{color:var(--yl-jade)}
.yl-strip__sep{flex:0 0 auto;width:26px;height:1px;background:rgba(184,179,169,.5)}
.yl-strip__text{margin-left:auto;white-space:nowrap}
.yl-progress{
  position:absolute;left:0;bottom:-1px;width:100%;height:2px;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--yl-jade),var(--yl-gold) 55%,var(--yl-coral));
  transition:transform .12s linear;
}
.yl-burger{
  display:none;align-items:center;gap:9px;
  padding:9px 12px;
  border:1px solid rgba(214,168,75,.42);border-radius:var(--yl-radius);
  font-family:var(--yl-mono);font-size:12px;letter-spacing:.12em;color:var(--yl-amber);
  transition:background-color .2s ease;
}
.yl-burger:hover{background:rgba(214,168,75,.14)}
.yl-burger__box{position:relative;display:block;width:18px;height:12px}
.yl-burger__line{
  position:absolute;left:0;width:18px;height:2px;background:currentColor;
  transition:transform .22s ease;
}
.yl-burger__line:nth-child(1){top:0}
.yl-burger__line:nth-child(2){bottom:0}
.yl-burger[aria-expanded="true"] .yl-burger__line:nth-child(1){transform:translateY(5px) rotate(45deg)}
.yl-burger[aria-expanded="true"] .yl-burger__line:nth-child(2){transform:translateY(-5px) rotate(-45deg)}
.yl-burger__label{white-space:nowrap}

/* ---------- 5. 按钮 ---------- */
.yl-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 18px;
  font-size:14px;font-weight:700;letter-spacing:.04em;line-height:1.2;
  border:1px solid transparent;border-radius:var(--yl-radius);
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.yl-btn--gold{background:var(--yl-gold);color:var(--yl-black)}
.yl-btn--gold:hover{background:var(--yl-amber);transform:translateY(-1px)}
.yl-btn--ghost{border-color:rgba(214,168,75,.5);color:var(--yl-amber);background:transparent}
.yl-btn--ghost:hover{background:rgba(214,168,75,.16)}
.yl-btn--jade{background:var(--yl-jade);color:var(--yl-black)}
.yl-btn--jade:hover{background:#5fc2ae;transform:translateY(-1px)}

/* ---------- 6. 页脚 ---------- */
.yl-footer{position:relative;background:var(--yl-ink-2);border-top:1px solid rgba(214,168,75,.22)}
.yl-footer__top{
  padding:clamp(40px,6vw,74px) 0 clamp(28px,4vw,50px);
  background:linear-gradient(180deg,rgba(18,40,76,.94),rgba(11,27,51,.99));
}
.yl-footer__inner{max-width:var(--yl-maxw);margin:0 auto;padding:0 var(--yl-gutter)}
.yl-footer__lead{padding-bottom:26px;border-bottom:1px solid rgba(247,244,237,.1)}
.yl-footer__title{font-size:clamp(22px,3vw,30px);font-weight:900;letter-spacing:.04em}
.yl-footer__desc{margin-top:8px;color:var(--yl-warmgray);max-width:64ch;font-size:15px}
.yl-footer__contacts{display:flex;flex-wrap:wrap;gap:10px 30px;margin-top:16px}
.yl-footer__contact{display:flex;align-items:center;gap:9px;font-size:13.5px}
.yl-footer__label{
  font-family:var(--yl-mono);font-size:11px;letter-spacing:.14em;
  color:var(--yl-jade);text-transform:uppercase;
}
.yl-footer__value{color:var(--yl-paper);word-break:break-all}
.yl-footer__cols{
  display:grid;grid-template-columns:1fr 1fr 1.5fr;
  gap:clamp(20px,3vw,44px);
  margin-top:30px;
}
.yl-footer__col{min-width:0}
.yl-footer__col--wide{max-width:46ch}
.yl-footer__coltitle{
  font-family:var(--yl-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--yl-gold);margin-bottom:14px;
}
.yl-footer__list{display:grid;gap:9px}
.yl-footer__link{
  font-size:14.5px;color:rgba(247,244,237,.75);
  border-bottom:1px dashed transparent;
  transition:color .2s ease,border-color .2s ease;
}
.yl-footer__link:hover{color:var(--yl-amber);border-bottom-color:rgba(240,200,106,.65)}
.yl-footer__link[aria-current="page"]{color:var(--yl-amber)}
.yl-footer__addr{font-size:14px;color:rgba(247,244,237,.72);line-height:1.9}
.yl-footer__bottom{border-top:1px solid rgba(247,244,237,.1);background:var(--yl-black);padding:15px 0}
.yl-footer__legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  font-family:var(--yl-mono);font-size:12px;letter-spacing:.05em;color:var(--yl-warmgray);
}
.yl-footer__mark{color:var(--yl-paper);font-family:var(--yl-sans);font-weight:800;letter-spacing:.06em}
.yl-footer__policy{color:rgba(184,179,169,.95);border-bottom:1px solid rgba(184,179,169,.35)}
.yl-footer__policy:hover{color:var(--yl-amber);border-bottom-color:var(--yl-amber)}

/* ---------- 7. 通用组件 ---------- */
.yl-card{
  position:relative;
  padding:22px;
  background:rgba(18,40,76,.72);
  border:1px solid var(--yl-line);
  border-radius:var(--yl-radius);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
  transition:border-color .22s ease,background-color .22s ease,transform .22s ease;
}
.yl-card--link:hover{border-color:rgba(214,168,75,.62);background:rgba(18,40,76,.96);transform:translateY(-3px)}
.yl-card__meta{
  display:flex;flex-wrap:wrap;gap:10px;
  font-family:var(--yl-mono);font-size:11.5px;letter-spacing:.1em;
  color:var(--yl-jade);margin-bottom:10px;
}
.yl-card__title{font-size:18px;font-weight:800;line-height:1.45;margin-bottom:8px}
.yl-card__text{font-size:14.5px;color:rgba(247,244,237,.72)}
.yl-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border:1px solid currentColor;border-radius:999px;
  font-family:var(--yl-mono);font-size:11px;letter-spacing:.08em;color:var(--yl-gold);
}
.yl-tag--coral{color:var(--yl-coral)}
.yl-tag--jade{color:var(--yl-jade)}
.yl-tag--amber{color:var(--yl-amber)}
.yl-tag--mute{color:var(--yl-warmgray)}
.yl-kpi{
  display:grid;gap:6px;padding:18px;
  border:1px solid rgba(214,168,75,.3);
  background:rgba(5,10,18,.45);
  border-radius:var(--yl-radius);
}
.yl-kpi__value{font-family:var(--yl-mono);font-weight:700;font-size:clamp(24px,3.4vw,34px);color:var(--yl-amber);line-height:1.2}
.yl-kpi__label{font-size:13px;color:var(--yl-warmgray)}
.yl-timeline{position:relative;display:grid;gap:26px;padding-left:26px;border-left:1px solid rgba(214,168,75,.35)}
.yl-timeline__item{position:relative}
.yl-timeline__item::before{
  content:"";position:absolute;left:-32px;top:9px;
  width:11px;height:11px;background:var(--yl-ink);
  border:2px solid var(--yl-gold);transform:rotate(45deg);
}
.yl-timeline__date{font-family:var(--yl-mono);font-size:12px;letter-spacing:.1em;color:var(--yl-amber)}
.yl-table__wrap{overflow-x:auto;border:1px solid var(--yl-line);background:rgba(5,10,18,.42);border-radius:var(--yl-radius)}
.yl-table{width:100%;min-width:520px;border-collapse:collapse;font-size:14px}
.yl-table th,.yl-table td{padding:12px 14px;text-align:left;border-bottom:1px solid rgba(247,244,237,.08)}
.yl-table thead th{
  font-family:var(--yl-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--yl-gold);background:rgba(18,40,76,.85);
}
.yl-table tbody tr:hover{background:rgba(214,168,75,.07)}
.yl-table tbody tr:last-child td{border-bottom:0}
.yl-acc{
  margin-bottom:10px;
  border:1px solid var(--yl-line);border-radius:var(--yl-radius);
  background:rgba(18,40,76,.5);
}
.yl-acc__summary{
  display:flex;gap:12px;align-items:baseline;
  padding:16px 18px;cursor:pointer;list-style:none;
  font-weight:700;font-size:15.5px;
}
.yl-acc__summary::-webkit-details-marker{display:none}
.yl-acc__summary::before{content:"+";font-family:var(--yl-mono);color:var(--yl-gold);font-size:16px}
.yl-acc[open] .yl-acc__summary::before{content:"–"}
.yl-acc__body{padding:0 18px 18px;font-size:14.5px;color:rgba(247,244,237,.76);animation:yl-fade .28s ease}
@keyframes yl-fade{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}
.yl-figure{display:grid;gap:10px;margin:0}
.yl-figure__frame{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  border:1px solid var(--yl-line);
  background:
    linear-gradient(140deg,rgba(18,40,76,.92),rgba(5,10,18,.96)),
    repeating-linear-gradient(90deg,rgba(247,244,237,.06) 0 1px,transparent 1px 46px),
    repeating-linear-gradient(0deg,rgba(247,244,237,.05) 0 1px,transparent 1px 46px);
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.yl-figure__frame--wide{aspect-ratio:21/9}
.yl-figure__frame--tall{aspect-ratio:4/5}
.yl-figure__img{width:100%;height:100%;object-fit:cover}
.yl-figure__cap{font-family:var(--yl-mono);font-size:11.5px;letter-spacing:.06em;color:var(--yl-warmgray)}
.yl-index{display:grid;gap:6px;padding-left:14px;border-left:2px solid rgba(214,168,75,.42)}
.yl-index__link{
  display:flex;gap:10px;padding:5px 0;
  font-family:var(--yl-mono);font-size:12.5px;letter-spacing:.05em;
  color:rgba(247,244,237,.72);transition:color .2s ease;
}
.yl-index__link:hover{color:var(--yl-amber)}
.yl-index__link[aria-current="true"]{color:var(--yl-amber)}
.yl-index__num{color:var(--yl-jade)}
.yl-note{
  padding:14px 16px;border-left:3px solid var(--yl-jade);
  background:rgba(79,174,155,.1);
  font-size:14px;color:rgba(247,244,237,.82);
}
.yl-breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--yl-mono);font-size:11.5px;letter-spacing:.08em;color:var(--yl-warmgray);
}
.yl-breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.yl-breadcrumb__item + .yl-breadcrumb__item::before{content:"/";color:rgba(184,179,169,.6)}
.yl-breadcrumb a:hover{color:var(--yl-amber)}
.yl-breadcrumb__item[aria-current="page"]{color:var(--yl-paper)}
.yl-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:22px}
.yl-filter{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border:1px solid rgba(247,244,237,.2);border-radius:999px;
  font-size:13px;color:rgba(247,244,237,.76);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.yl-filter:hover{border-color:var(--yl-gold);color:var(--yl-paper)}
.yl-filter[aria-pressed="true"]{background:var(--yl-amber);border-color:var(--yl-amber);color:var(--yl-black);font-weight:700}
.yl-filter__count{font-family:var(--yl-mono);font-size:11px;opacity:.8}
.yl-toolbar__status{margin-left:auto;font-family:var(--yl-mono);font-size:11.5px;color:var(--yl-warmgray)}
.yl-copy{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border:1px solid rgba(79,174,155,.45);border-radius:var(--yl-radius);
  font-family:var(--yl-mono);font-size:11px;letter-spacing:.08em;color:var(--yl-jade);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.yl-copy:hover{background:rgba(79,174,155,.18)}
.yl-copy[data-copy-state="ok"]{border-color:var(--yl-amber);color:var(--yl-amber)}
.yl-copy[data-copy-state="fail"]{border-color:var(--yl-coral);color:var(--yl-coral)}
.yl-copy__status{font-family:var(--yl-mono);font-size:11px;color:var(--yl-warmgray)}
.yl-reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
.yl-reveal.is-in{opacity:1;transform:none}

/* ---------- 8. 断点 ---------- */
@media (max-width:1080px){
  :root{--yl-header-h:94px}
  .yl-burger{display:inline-flex}
  .yl-header__cta{display:none}
  .yl-nav{
    position:fixed;left:0;right:0;top:var(--yl-header-h);bottom:0;
    margin:0;padding:22px var(--yl-gutter) 40px;
    background:var(--yl-ink-2);
    border-top:1px solid rgba(214,168,75,.25);
    overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  }
  .yl-nav[data-open="true"]{opacity:1;visibility:visible;transform:translateY(0)}
  .yl-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .yl-nav__item{width:100%}
  .yl-nav__link{display:block;padding:14px 10px;font-size:17px;border-bottom:1px solid rgba(247,244,237,.08)}
  .yl-nav__link::after{display:none}
  .yl-nav__link[aria-current="page"]{background:rgba(214,168,75,.12);padding-left:16px}
  .yl-nav__foot{display:flex;flex-direction:column;gap:12px;margin-top:26px}
  .yl-nav__cta{width:100%}
  body.yl-nav-open{overflow:hidden}
  .yl-footer__cols{grid-template-columns:1fr 1fr}
  .yl-footer__col--wide{grid-column:1 / -1;max-width:none}
}
@media (max-width:1024px){
  .yl-grid--3,.yl-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .yl-header__inner{padding:10px 18px}
  .yl-brand__sub{display:none}
  .yl-strip__text,.yl-strip__sep{display:none}
  .yl-path{margin-left:auto}
  .yl-grid--2,.yl-grid--3,.yl-grid--4{grid-template-columns:1fr}
  .yl-footer__cols{grid-template-columns:1fr}
  .yl-footer__contacts{flex-direction:column;align-items:flex-start;gap:12px}
  .yl-toolbar__status{margin-left:0;width:100%}
}

/* ---------- 9. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .yl-reveal{opacity:1;transform:none}
  .yl-progress{transition:none}
}