/* =========================================================
   乐投会馆 / site.css
   1 reset  2 tokens  3 base  4 layout  5 header  6 footer
   7 buttons  8 breadcrumb & prose  9 grid  10 components
   11 media  12 utilities  13 responsive & motion
   ========================================================= */

/* ---------- 1. reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:140px}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--gold-300);outline-offset:3px;border-radius:3px}

/* ---------- 2. tokens ---------- */
:root{
  --ink-900:#0B0D0E;
  --ink-800:#101315;
  --ink-700:#171B1D;
  --ink-600:#1F2427;
  --ink-500:#2A3033;
  --gold-500:#D99A2B;
  --gold-300:#F2C15C;
  --gold-wash:rgba(217,154,43,.12);
  --jade-500:#2F8F6B;
  --jade-300:#6FC3A2;
  --electric-400:#3AC7C9;
  --fog-100:#E8E6E1;
  --fog-300:#B9B5AD;
  --fog-500:#7E7A72;
  --line:rgba(232,230,225,.10);
  --line-strong:rgba(232,230,225,.20);
  --line-gold:rgba(217,154,43,.38);
  --shadow-sm:0 1px 0 rgba(255,255,255,.02),0 18px 40px -28px rgba(0,0,0,.95);
  --radius-sm:6px;
  --radius:12px;
  --radius-lg:20px;
  --shell:1180px;
  --shell-narrow:760px;
  --gutter:clamp(18px,4vw,40px);
  --section-y:clamp(56px,9vw,120px);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"JetBrains Mono","Cascadia Mono","Liberation Mono",Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 10% -8%,rgba(217,154,43,.10),transparent 68%),
    radial-gradient(760px 420px at 94% 4%,rgba(47,143,107,.09),transparent 70%);
  background-repeat:no-repeat;
  color:var(--fog-100);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,.h1{
  font-weight:900;
  letter-spacing:.06em;
  line-height:1.18;
  color:var(--fog-100);
  text-wrap:balance;
}
h1,.h1{font-size:clamp(34px,7vw,76px);line-height:1.1}
h2{font-size:clamp(26px,4.2vw,44px)}
h3{font-size:clamp(20px,2.4vw,27px)}
p{text-wrap:pretty}
.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
}

/* ---------- 4. layout ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.shell--wide{max-width:1340px}
.shell--narrow{max-width:var(--shell-narrow)}
.section{padding-block:var(--section-y)}
.section__head{max-width:64ch;margin-bottom:clamp(24px,4vw,48px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.24em;text-transform:uppercase;color:var(--gold-300);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold-500)}
.section-title{margin-top:14px}
.lede{margin-top:14px;color:var(--fog-300);font-size:clamp(15px,1.6vw,17px);max-width:60ch}
.hairline{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--line-gold),transparent)}

/* ---------- 5. header ---------- */
.skip-link{
  position:fixed;left:var(--gutter);top:-120px;z-index:200;
  padding:12px 22px;border-radius:0 0 var(--radius-sm) var(--radius-sm);
  background:var(--gold-500);color:#14100A;font-weight:700;letter-spacing:.08em;
  transition:top .22s var(--ease);
}
.skip-link:focus{top:0}

.site-header{
  position:relative;z-index:100;
  background:linear-gradient(180deg,rgba(11,13,14,.97),rgba(11,13,14,.90));
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.scroll-progress{
  position:absolute;left:0;bottom:-1px;z-index:3;
  display:block;height:2px;width:0;
  background:linear-gradient(90deg,var(--gold-500),var(--gold-300) 55%,var(--jade-300));
  transition:width .08s linear;
  pointer-events:none;
}

/* 上层：账簿条 */
.header-utility{border-bottom:1px solid var(--line);background:rgba(23,27,29,.55)}
.header-utility__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px 20px;flex-wrap:wrap;min-height:38px;padding-block:6px;
}
.header-utility__note{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.10em;color:var(--fog-500);
}
.header-utility__note .mono{color:var(--fog-300);font-size:11.5px}
.header-utility__pulse{
  width:6px;height:6px;border-radius:50%;flex:0 0 auto;
  background:var(--jade-300);box-shadow:0 0 0 4px rgba(111,195,162,.14);
  animation:lt-pulse 3.4s var(--ease) infinite;
}
@keyframes lt-pulse{50%{opacity:.3;box-shadow:0 0 0 7px rgba(111,195,162,.05)}}
.header-utility__meta{
  display:inline-flex;align-items:center;gap:14px;
  font-size:11.5px;letter-spacing:.18em;color:var(--fog-500);
}
.ledger-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border:1px solid var(--line-gold);border-radius:999px;
  background:var(--gold-wash);color:var(--gold-300);
  font-size:12px;letter-spacing:.08em;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.ledger-link:hover{background:rgba(217,154,43,.22);border-color:var(--gold-300);transform:translateY(-1px)}
.ledger-link__dot{width:5px;height:5px;border-radius:50%;background:var(--gold-300);flex:0 0 auto}

/* 下层：品牌 + 栏目 */
.header-main__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding-block:13px;
}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand__mark{
  position:relative;flex:0 0 auto;width:44px;height:44px;
  display:grid;place-items:center;border-radius:11px;
  border:1px solid var(--line-gold);
  background:linear-gradient(150deg,rgba(217,154,43,.24),rgba(217,154,43,.03));
}
.brand__mark-glyph{font-size:20px;font-weight:900;color:var(--gold-300);letter-spacing:0;line-height:1}
.brand__text{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand__name{font-size:20px;font-weight:900;letter-spacing:.16em;color:var(--fog-100);line-height:1.25}
.brand__tagline{font-size:10.5px;letter-spacing:.24em;color:var(--fog-500);line-height:1.4}
.brand--footer .brand__name{font-size:23px}
.brand--footer .brand__mark{width:50px;height:50px}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:9px 15px;border:1px solid var(--line-strong);border-radius:999px;
  color:var(--fog-100);font-size:13px;letter-spacing:.14em;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-gold);color:var(--gold-300)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:4px;width:16px}
.nav-toggle__bars span{
  display:block;height:1.5px;width:100%;border-radius:2px;background:var(--gold-300);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

.site-nav__list{display:flex;align-items:center;gap:2px}
.site-nav__link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:999px;
  font-size:14.5px;letter-spacing:.08em;color:var(--fog-300);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.site-nav__link:hover{color:var(--gold-300);background:rgba(232,230,225,.04)}
.site-nav__link[aria-current="page"]{color:var(--gold-300);font-weight:700}
.site-nav__link[aria-current="page"]::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold-500),var(--gold-300));
}

.header-rail{display:none}

/* ---------- 6. footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(64px,10vw,150px);
  background:var(--ink-900);border-top:1px solid var(--line-gold);
}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold-500),transparent);opacity:.55;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;
  gap:clamp(28px,4vw,56px);
  padding-block:clamp(44px,7vw,86px);
}
.footer-brand__lede{
  margin:20px 0 24px;max-width:40ch;
  font-size:15px;color:var(--fog-300);
}
.footer-heading{
  display:flex;align-items:center;gap:10px;
  margin-bottom:18px;font-size:12px;font-weight:700;
  letter-spacing:.24em;color:var(--fog-500);text-transform:uppercase;
}
.footer-heading::before{content:"";width:16px;height:1px;background:var(--gold-500);flex:0 0 auto}
.footer-list__item + .footer-list__item{margin-top:10px}
.footer-list__link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;letter-spacing:.04em;color:var(--fog-300);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-list__link::before{
  content:"";width:4px;height:4px;border-radius:50%;
  background:var(--fog-500);flex:0 0 auto;transition:background .2s var(--ease);
}
.footer-list__link:hover{color:var(--gold-300);transform:translateX(3px)}
.footer-list__link:hover::before{background:var(--gold-300)}

.contact-list__item{
  display:grid;grid-template-columns:74px 1fr;gap:12px;
  padding:11px 0;border-bottom:1px solid var(--line);
  font-size:14px;
}
.contact-list__key{font-size:12px;letter-spacing:.16em;color:var(--fog-500);line-height:1.9}
.contact-list__value{color:var(--fog-100);word-break:break-word}
.contact-list__value.mono{font-size:13.5px;color:var(--gold-300)}
.footer-note{margin-top:16px;font-size:12.5px;line-height:1.9;color:var(--fog-500)}

.footer-legal{border-top:1px solid var(--line);background:#07090A}
.footer-legal__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 24px;padding-block:18px;
  font-size:12.5px;letter-spacing:.06em;color:var(--fog-500);
}
.footer-legal__icp{color:var(--fog-300);font-size:12px}
.footer-legal__copy{margin-right:auto}

/* ---------- 7. buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:14.5px;font-weight:700;letter-spacing:.12em;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--gold{
  background:linear-gradient(135deg,var(--gold-300),var(--gold-500));
  color:#14100A;box-shadow:0 14px 34px -20px rgba(217,154,43,.95);
}
.btn--gold:hover{transform:translateY(-2px)}
.btn--ghost{border-color:var(--line-strong);background:rgba(232,230,225,.03);color:var(--fog-100)}
.btn--ghost:hover{border-color:var(--gold-300);color:var(--gold-300);transform:translateY(-2px)}
.btn--jade{border-color:rgba(111,195,162,.42);background:rgba(47,143,107,.16);color:var(--jade-300)}
.btn--jade:hover{background:rgba(47,143,107,.28);transform:translateY(-2px)}
.btn--block{width:100%}

/* ---------- 8. breadcrumb & prose ---------- */
.breadcrumb{padding-block:20px 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--fog-500)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--ink-500);font-family:var(--font-mono)}
.breadcrumb__link{color:var(--fog-300);letter-spacing:.06em;transition:color .2s var(--ease)}
.breadcrumb__link:hover{color:var(--electric-400)}
.breadcrumb__current{color:var(--gold-300);letter-spacing:.06em}

.prose{max-width:74ch;color:var(--fog-300);font-size:16.5px;line-height:1.9}
.prose h2{margin-top:2em;margin-bottom:.6em;font-size:clamp(22px,2.6vw,30px);color:var(--fog-100)}
.prose h3{margin-top:1.6em;margin-bottom:.5em;font-size:19px;color:var(--fog-100)}
.prose p + p{margin-top:1em}
.prose ul{margin-top:1em}
.prose li{position:relative;padding-left:20px;margin-top:.55em}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:8px;height:1px;background:var(--gold-500)}
.prose strong{color:var(--fog-100);font-weight:700}
.prose a{color:var(--electric-400);border-bottom:1px solid rgba(58,199,201,.35)}
.prose a:hover{border-bottom-color:var(--electric-400)}

/* ---------- 9. grid ---------- */
.grid{display:grid;gap:clamp(14px,1.8vw,22px);grid-template-columns:1fr}
.grid--bento{grid-template-columns:1fr}
.span-2,.span-3,.span-4,.span-6{grid-column:auto}

/* ---------- 10. components ---------- */
.card{
  position:relative;overflow:hidden;
  padding:clamp(20px,2.6vw,30px);
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,var(--ink-700),var(--ink-800));
  box-shadow:var(--shadow-sm);
  transition:border-color .26s var(--ease),transform .26s var(--ease);
}
.card:hover{border-color:var(--line-gold);transform:translateY(-3px)}
.card--gold{border-color:var(--line-gold)}
.card--gold::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--gold-300),transparent);
}
.card--jade::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--jade-300),transparent);
}
.card__head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px}
.card__title{font-size:clamp(19px,2vw,23px);font-weight:800;letter-spacing:.05em;color:var(--fog-100)}
.card__text{font-size:15px;color:var(--fog-300)}
.card__meta{
  font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.16em;color:var(--fog-500);
}
.card__badge{
  position:absolute;top:15px;right:-38px;
  padding:4px 44px;transform:rotate(38deg);
  background:var(--gold-500);color:#14100A;
  font-family:var(--font-mono);font-size:10.5px;font-weight:700;letter-spacing:.14em;
}

.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(232,230,225,.03);
  font-size:12px;letter-spacing:.12em;color:var(--fog-300);
}
.tag--gold{border-color:var(--line-gold);background:var(--gold-wash);color:var(--gold-300)}
.tag--jade{border-color:rgba(111,195,162,.42);background:rgba(47,143,107,.15);color:var(--jade-300)}
.tag--electric{border-color:rgba(58,199,201,.42);background:rgba(58,199,201,.12);color:var(--electric-400)}
.tag--tilt{transform:rotate(-3deg)}

.stat-row{display:flex;flex-wrap:wrap;gap:clamp(22px,5vw,64px)}
.stat__value{
  display:block;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(34px,6vw,56px);font-weight:700;line-height:1;
  letter-spacing:.02em;color:var(--gold-300);
}
.stat__label{display:block;margin-top:10px;font-size:12px;letter-spacing:.18em;color:var(--fog-500)}

.timeline{position:relative;padding-left:26px;border-left:1px solid var(--line)}
.timeline__item{position:relative;padding:0 0 32px 20px}
.timeline__item:last-child{padding-bottom:0}
.timeline__node{
  position:absolute;left:-32px;top:5px;width:11px;height:11px;border-radius:50%;
  background:var(--ink-900);border:2px solid var(--gold-500);
}
.timeline__item--done .timeline__node{background:var(--jade-500);border-color:var(--jade-300)}
.timeline__date{
  display:block;font-family:var(--font-mono);font-size:12.5px;
  letter-spacing:.16em;color:var(--gold-300);
}
.timeline__body{margin-top:8px;font-size:15px;color:var(--fog-300)}

.accordion{border-top:1px solid var(--line)}
.accordion__item{border-bottom:1px solid var(--line)}
.accordion__trigger{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:20px 4px;text-align:left;
  font-size:17px;font-weight:700;letter-spacing:.04em;color:var(--fog-100);
  transition:color .2s var(--ease);
}
.accordion__trigger:hover{color:var(--gold-300)}
.accordion__icon{position:relative;flex:0 0 auto;width:14px;height:14px}
.accordion__icon::before,.accordion__icon::after{
  content:"";position:absolute;background:var(--gold-300);border-radius:2px;
  transition:transform .26s var(--ease);
}
.accordion__icon::before{left:0;right:0;top:6px;height:2px}
.accordion__icon::after{top:0;bottom:0;left:6px;width:2px}
.accordion__item.is-open .accordion__icon::after{transform:scaleY(0)}
.accordion__panel{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.accordion__panel-inner{padding:0 4px 22px;font-size:15.5px;color:var(--fog-300)}

/* ---------- 11. media ---------- */
.media{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(150deg,var(--ink-700),#0E1113);
}
.media img,.media picture,.media picture img{width:100%;height:100%;object-fit:cover;display:block}
.media--21x9{aspect-ratio:21/9}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--3x4{aspect-ratio:3/4}
.media__caption{
  position:absolute;left:14px;bottom:12px;z-index:2;
  padding:4px 11px;border-radius:999px;border:1px solid var(--line);
  background:rgba(11,13,14,.62);color:var(--fog-300);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
}
.media__glow{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,transparent 42%,rgba(11,13,14,.72));
}
.media--placeholder::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(217,154,43,.16) 0 1px,transparent 1px 22px);
}
.media--placeholder::after{
  content:"";position:absolute;inset:32% 38%;
  border:1px solid var(--line-gold);border-radius:50%;
  background:radial-gradient(circle,rgba(217,154,43,.16),transparent 70%);
}

/* ---------- 12. utilities ---------- */
.visually-hidden{
  position:absolute!important;width:1px;height:1px;
  margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.text-gold{color:var(--gold-300)}
.text-jade{color:var(--jade-300)}
.text-fog{color:var(--fog-300)}
.stack > * + *{margin-top:16px}
.cluster{display:flex;flex-wrap:wrap;gap:10px;align-items:center}

.footer-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border:1px solid var(--line-strong);border-radius:999px;
  font-size:12px;letter-spacing:.14em;color:var(--fog-300);
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-top::before{content:"↑";font-family:var(--font-mono);color:var(--gold-300)}
.footer-top:hover{color:var(--gold-300);border-color:var(--line-gold)}

/* 滚动显现协议 */
[data-reveal]{transition-delay:var(--reveal-delay,0ms)}
.has-js [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .62s var(--ease),transform .62s var(--ease),transition-delay 0ms}
.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 13. responsive ---------- */
@media (min-width:560px){
  .contact-list__item{grid-template-columns:88px 1fr}
}
@media (min-width:640px){
  .grid{gap:clamp(16px,2vw,24px)}
  .grid--2,.grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:760px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1.3fr}
}
@media (min-width:900px){
  .site-header{position:sticky;top:0}
}
@media (min-width:980px){
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .grid--bento{grid-template-columns:repeat(6,minmax(0,1fr));grid-auto-rows:minmax(130px,auto)}
  .span-2{grid-column:span 2}
  .span-3{grid-column:span 3}
  .span-4{grid-column:span 4}
  .span-6{grid-column:span 6}
}
@media (min-width:1440px){
  .header-rail{
    display:flex;position:fixed;left:30px;top:50%;z-index:90;
    transform:translateY(-50%);
    flex-direction:column;align-items:center;gap:16px;
    pointer-events:none;
  }
  .header-rail__line{width:1px;height:70px;background:linear-gradient(180deg,transparent,var(--gold-500))}
  .header-rail__text{
    writing-mode:vertical-rl;
    font-family:var(--font-mono);font-size:11px;
    letter-spacing:.34em;color:var(--fog-500);
  }
}

/* 移动导航 */
@media (max-width:899px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;z-index:5;display:none;
    padding:8px var(--gutter) 24px;
    background:linear-gradient(180deg,#0B0D0E,#101315);
    border-bottom:1px solid var(--line-gold);
    box-shadow:0 30px 50px -26px rgba(0,0,0,.95);
    max-height:calc(100vh - 130px);overflow-y:auto;
  }
  .site-header[data-open] .site-nav{display:block;animation:lt-nav-in .26s var(--ease)}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__item{border-bottom:1px solid var(--line)}
  .site-nav__item:last-child{border-bottom:0}
  .site-nav__link{display:block;padding:16px 2px;font-size:16px;letter-spacing:.1em;border-radius:0}
  .site-nav__link[aria-current="page"]{padding-left:18px}
  .site-nav__link[aria-current="page"]::after{
    left:2px;right:auto;top:50%;bottom:auto;
    width:3px;height:16px;transform:translateY(-50%);
    background:linear-gradient(180deg,var(--gold-300),var(--gold-500));
  }
  @keyframes lt-nav-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
}
@media (max-width:560px){
  .header-utility__meta .mono{display:none}
  .header-utility__note span:last-child{display:none}
  .footer-legal__copy{margin-right:0;width:100%}
}

/* 动效降级 */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
  .scroll-progress{transition:none}
}