/* ============================================================
   YOBO赛场 · 共享 Site Kit
   /assets/site.css
   1 Reset · 2 Tokens · 3 Base · 4 Utilities · 5 Buttons
   6 Header · 7 Nav · 8 Footer · 9 Breadcrumb · 10 Section
   11 Grid/Panel · 12 Media · 13 Score · 14 Tabs/Filter
   15 Responsive · 16 Reduced motion
   ============================================================ */

/* ---------- 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{padding:0;list-style:none}
img,svg,picture,video{display:block;max-width:100%}
img{height:auto}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit}
table{border-collapse:collapse}
:where(a,button,summary,input,select,textarea):focus-visible{
  outline:2px solid var(--yb-lime);
  outline-offset:3px;
}

/* ---------- 2. Tokens ---------- */
:root{
  --yb-ink:#07130F;
  --yb-carbon:#111A16;
  --yb-moss:#2E4A3B;
  --yb-lime:#D6FF4B;
  --yb-orange:#FF8A2A;
  --yb-white:#F3F7F2;
  --yb-stone:#9DAAA2;
  --yb-clay:#B96E4E;
  --yb-glass:rgba(214,255,75,.08);
  --yb-grid:#6E8B7C;
  --yb-line:rgba(157,170,162,.22);
  --yb-line-strong:rgba(157,170,162,.42);
  --yb-shadow:0 24px 60px -40px rgba(0,0,0,.95);

  --yb-font-display:"Barlow Condensed","Oswald","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --yb-font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --yb-font-editorial:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --yb-font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --yb-shell:1200px;
  --yb-ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. Base ---------- */
html{background-color:var(--yb-ink)}
body{
  min-height:100vh;
  background-color:var(--yb-ink);
  background-image:
    radial-gradient(1100px 620px at 82% -12%, rgba(214,255,75,.10), transparent 68%),
    radial-gradient(760px 520px at 2% 0%, rgba(255,138,42,.07), transparent 62%),
    linear-gradient(180deg,#07130F 0%,#07130F 62%,#050D0A 100%);
  color:var(--yb-white);
  font-family:var(--yb-font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--yb-lime);color:var(--yb-ink)}
h1,h2,h3,h4,h5{
  font-family:var(--yb-font-display);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.01em;
  color:var(--yb-white);
}
p{max-width:72ch}
strong{font-weight:600;color:var(--yb-white)}
small{font-size:12px}

/* ---------- 4. Utilities ---------- */
.yb-shell{
  width:100%;
  max-width:var(--yb-shell);
  margin-inline:auto;
  padding-inline:clamp(16px,4vw,40px);
}
.yb-main{display:block;padding-bottom:clamp(24px,4vw,56px)}
#main-content{scroll-margin-top:150px}

.yb-skip{
  position:fixed;
  top:10px;
  left:50%;
  z-index:200;
  padding:10px 18px;
  background:var(--yb-lime);
  color:var(--yb-ink);
  font-family:var(--yb-font-body);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  text-decoration:none;
  transform:translate(-50%,-220%);
  transition:transform .22s var(--yb-ease);
}
.yb-skip:focus,
.yb-skip:focus-visible{transform:translate(-50%,0)}

.yb-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  font-family:var(--yb-font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--yb-lime);
}
.yb-eyebrow::before{
  content:"";
  width:14px;
  height:3px;
  background:var(--yb-lime);
}
.yb-lede{
  max-width:62ch;
  font-family:var(--yb-font-editorial);
  font-weight:600;
  font-size:clamp(16px,2.1vw,19px);
  line-height:1.85;
  color:var(--yb-stone);
}
.yb-signal-dot{
  display:inline-block;
  flex:0 0 auto;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--yb-lime);
  box-shadow:0 0 0 3px rgba(214,255,75,.16);
}

/* ---------- 5. Buttons / chips ---------- */
.yb-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  padding:.72em 1.2em;
  border:1px solid var(--yb-line-strong);
  border-radius:2px;
  background:transparent;
  color:var(--yb-white);
  font-family:var(--yb-font-body);
  font-size:13px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:.08em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .22s var(--yb-ease),
             border-color .22s var(--yb-ease),
             color .22s var(--yb-ease);
}
.yb-btn:hover{border-color:var(--yb-lime);color:var(--yb-lime)}
.yb-btn:active{background:var(--yb-glass)}
.yb-btn--primary{
  background:var(--yb-lime);
  border-color:var(--yb-lime);
  color:var(--yb-ink);
  box-shadow:inset 0 0 0 1px rgba(7,19,15,.18);
}
.yb-btn--primary:hover,
.yb-btn--primary:focus-visible{
  background:var(--yb-white);
  border-color:var(--yb-white);
  color:var(--yb-ink);
}
.yb-btn--primary:focus-visible{outline-color:var(--yb-white)}
.yb-btn--ghost{
  background:rgba(17,26,22,.55);
  border-color:rgba(214,255,75,.45);
  color:var(--yb-lime);
}
.yb-btn--ghost:hover{background:var(--yb-glass);border-color:var(--yb-lime);color:var(--yb-lime)}
.yb-btn--block{display:flex;width:100%}

.yb-chip{
  display:inline-flex;
  align-items:center;
  gap:.45em;
  padding:.28em .62em;
  border:1px solid var(--yb-line);
  background:rgba(17,26,22,.72);
  color:var(--yb-stone);
  font-family:var(--yb-font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.08em;
  line-height:1.5;
}
.yb-chip--lime{background:var(--yb-lime);border-color:var(--yb-lime);color:var(--yb-ink)}
.yb-chip--orange{background:var(--yb-orange);border-color:var(--yb-orange);color:var(--yb-ink)}
.yb-chip--clay{background:rgba(185,110,78,.22);border-color:var(--yb-clay);color:var(--yb-white)}

/* ---------- 6. Header ---------- */
.yb-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,rgba(7,19,15,.97) 0%,rgba(11,24,19,.92) 100%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--yb-line);
  box-shadow:0 20px 44px -36px rgba(0,0,0,.95);
}
.yb-header::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(214,255,75,.55) 22%,rgba(255,138,42,.45) 78%,transparent);
  pointer-events:none;
}
.yb-header__inner{
  width:100%;
  max-width:var(--yb-shell);
  margin-inline:auto;
  padding-inline:clamp(16px,4vw,40px);
}
.yb-masthead{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:clamp(10px,2vw,24px);
  padding-block:16px 14px;
}
.yb-header__status{
  display:flex;
  align-items:center;
  gap:8px;
  max-width:30ch;
  font-family:var(--yb-font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.04em;
  line-height:1.5;
  color:var(--yb-stone);
}
.yb-masthead__side{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:10px;
}
.yb-masthead__cta{font-size:12px;padding:.68em 1.05em}

.yb-brand{
  display:inline-flex;
  align-items:center;
  justify-self:center;
  gap:12px;
  text-decoration:none;
}
.yb-brand__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:46px;
  padding:7px 13px;
  background:var(--yb-lime);
  color:var(--yb-ink);
  font-family:var(--yb-font-display);
  font-size:20px;
  font-weight:800;
  line-height:1;
  letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,86% 100%,0 100%);
  transition:background-color .22s var(--yb-ease);
}
.yb-brand__type{display:flex;flex-direction:column;gap:3px;line-height:1}
.yb-brand__name{
  font-family:var(--yb-font-display);
  font-weight:800;
  font-size:clamp(20px,2.6vw,26px);
  letter-spacing:.02em;
  color:var(--yb-white);
  transition:color .22s var(--yb-ease);
}
.yb-brand__sub{
  font-family:var(--yb-font-mono);
  font-size:10px;
  font-weight:500;
  letter-spacing:.2em;
  color:var(--yb-orange);
}
.yb-brand:hover .yb-brand__name,
.yb-brand:focus-visible .yb-brand__name{color:var(--yb-lime)}
.yb-brand:hover .yb-brand__mark{background:var(--yb-white)}

/* 移动端栏目按钮 */
.yb-navtoggle{
  display:none;
  align-items:center;
  justify-self:end;
  gap:8px;
  padding:9px 12px;
  border:1px solid rgba(214,255,75,.42);
  background:rgba(17,26,22,.85);
  color:var(--yb-white);
  font-family:var(--yb-font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.12em;
}
.yb-navtoggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:3px;width:16px}
.yb-navtoggle__bars span{
  display:block;
  height:2px;
  background:var(--yb-lime);
  transition:transform .22s var(--yb-ease),opacity .22s var(--yb-ease);
}
.yb-navtoggle__label{line-height:1}
.yb-navtoggle:hover{border-color:var(--yb-lime);background:var(--yb-glass)}
.yb-navtoggle[aria-expanded="true"] .yb-navtoggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.yb-navtoggle[aria-expanded="true"] .yb-navtoggle__bars span:nth-child(2){opacity:0}
.yb-navtoggle[aria-expanded="true"] .yb-navtoggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 滚动进度 */
.yb-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:rgba(157,170,162,.16);
  overflow:hidden;
  pointer-events:none;
}
.yb-progress__bar{
  display:block;
  width:100%;
  height:100%;
  background:linear-gradient(90deg,var(--yb-lime),var(--yb-orange));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .12s linear;
}

/* ---------- 7. Nav ---------- */
.yb-nav{border-top:1px solid var(--yb-line)}
.yb-nav__list{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
  justify-content:center;
  gap:clamp(0px,1.6vw,20px);
  padding:4px 0 6px;
}
.yb-nav__item{display:flex}
.yb-nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  padding:12px 10px 15px;
  color:var(--yb-stone);
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  text-decoration:none;
  transition:color .22s var(--yb-ease);
}
.yb-nav__idx{
  font-family:var(--yb-font-mono);
  font-size:10px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--yb-grid);
  transition:color .22s var(--yb-ease);
}
.yb-nav__label{line-height:1.2}
.yb-nav__link::after{
  content:"";
  position:absolute;
  left:10px;
  right:10px;
  bottom:8px;
  height:2px;
  background:var(--yb-lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s var(--yb-ease);
}
.yb-nav__link:hover,
.yb-nav__link:focus-visible{color:var(--yb-white)}
.yb-nav__link:hover .yb-nav__idx,
.yb-nav__link:focus-visible .yb-nav__idx{color:var(--yb-lime)}
.yb-nav__link:hover::after,
.yb-nav__link:focus-visible::after{transform:scaleX(1)}
.yb-nav__link[aria-current="page"]{color:var(--yb-lime)}
.yb-nav__link[aria-current="page"] .yb-nav__idx{color:var(--yb-orange)}
.yb-nav__link[aria-current="page"]::after{
  transform:scaleX(1);
  background:linear-gradient(90deg,var(--yb-lime),rgba(214,255,75,.18));
}
.yb-nav__cta{display:none}

/* ---------- 8. Footer ---------- */
.yb-footer{
  position:relative;
  margin-top:clamp(40px,6vw,80px);
  background:linear-gradient(180deg,#111A16 0%,#0B1511 70%,#08120E 100%);
  border-top:1px solid var(--yb-line);
  color:var(--yb-white);
}
.yb-footer::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  height:2px;
  background:linear-gradient(90deg,var(--yb-lime),rgba(214,255,75,0) 55%,var(--yb-orange));
  pointer-events:none;
}
.yb-footer__inner{
  width:100%;
  max-width:var(--yb-shell);
  margin-inline:auto;
  padding-inline:clamp(16px,4vw,40px);
  padding-block:clamp(40px,6vw,72px) 0;
}
.yb-footer__top{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:clamp(28px,5vw,64px);
  padding-bottom:clamp(28px,4vw,44px);
  border-bottom:1px solid var(--yb-line);
}
.yb-brand--footer{justify-self:start;justify-content:flex-start}
.yb-brand--footer .yb-brand__name{font-size:22px}
.yb-footer__summary{
  margin-top:18px;
  max-width:36ch;
  font-size:15px;
  line-height:1.8;
  color:var(--yb-stone);
}
.yb-footer__badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  padding:7px 12px;
  border:1px solid rgba(214,255,75,.3);
  background:var(--yb-glass);
  font-family:var(--yb-font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--yb-lime);
}
.yb-footer__coltitle{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 14px;
  font-family:var(--yb-font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--yb-lime);
}
.yb-footer__coltitle::before{
  content:"";
  width:8px;
  height:8px;
  background:var(--yb-orange);
}
.yb-contact{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 20px;
}
.yb-contact__item{display:flex;flex-direction:column;gap:3px}
.yb-contact__item--wide{grid-column:1 / -1}
.yb-contact__label{
  font-family:var(--yb-font-mono);
  font-size:10px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--yb-grid);
}
.yb-contact__value{
  font-size:14px;
  line-height:1.6;
  color:var(--yb-white);
  overflow-wrap:anywhere;
}
.yb-footer__note{
  margin-top:16px;
  max-width:48ch;
  font-size:12px;
  line-height:1.75;
  color:var(--yb-stone);
}
.yb-footer__nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,4vw,40px);
  padding-block:clamp(26px,4vw,40px);
  border-bottom:1px solid var(--yb-line);
}
.yb-footer__links{display:grid;gap:8px}
.yb-footer__link{
  display:inline-block;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  color:var(--yb-white);
  font-size:14px;
  text-decoration:none;
  transition:color .22s var(--yb-ease),border-color .22s var(--yb-ease);
}
.yb-footer__link:hover,
.yb-footer__link:focus-visible{color:var(--yb-lime);border-bottom-color:var(--yb-lime)}
.yb-footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  padding-block:22px 30px;
  font-family:var(--yb-font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--yb-stone);
}
.yb-footer__legal{max-width:none;line-height:1.7}
.yb-footer__mini{display:flex;flex-wrap:wrap;gap:16px}
.yb-footer__minilink{
  color:var(--yb-stone);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .22s var(--yb-ease),border-color .22s var(--yb-ease);
}
.yb-footer__minilink:hover,
.yb-footer__minilink:focus-visible{color:var(--yb-lime);border-bottom-color:var(--yb-lime)}

/* ---------- 9. Breadcrumb ---------- */
.yb-breadcrumb{
  margin-top:clamp(20px,3vw,34px);
  font-family:var(--yb-font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--yb-stone);
}
.yb-breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.55em}
.yb-breadcrumb__item{display:inline-flex;align-items:center;gap:.55em}
.yb-breadcrumb__link{
  color:var(--yb-stone);
  text-decoration:none;
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color .22s var(--yb-ease),border-color .22s var(--yb-ease);
}
.yb-breadcrumb__link:hover,
.yb-breadcrumb__link:focus-visible{color:var(--yb-lime);border-bottom-color:var(--yb-lime)}
.yb-breadcrumb__sep{color:var(--yb-grid)}
.yb-breadcrumb__current{color:var(--yb-white)}

/* ---------- 10. Section / chapter ---------- */
.yb-section{padding-block:clamp(40px,6vw,80px)}
.yb-chapter{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:clamp(12px,2vw,22px);
  margin-bottom:clamp(18px,3vw,30px);
}
.yb-chapter__num{
  font-family:var(--yb-font-mono);
  font-size:clamp(12px,1.6vw,14px);
  font-weight:600;
  letter-spacing:.14em;
  color:var(--yb-orange);
  padding-right:clamp(10px,1.6vw,18px);
  border-right:1px solid var(--yb-line-strong);
}
.yb-chapter__title{
  font-size:clamp(22px,3.2vw,32px);
  margin:0;
}
.yb-chapter__note{
  flex-basis:100%;
  margin-top:.4em;
  max-width:58ch;
  font-size:14px;
  line-height:1.8;
  color:var(--yb-stone);
}

/* ---------- 11. Grid / panel ---------- */
.yb-grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.yb-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.yb-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.yb-panel{
  position:relative;
  padding:clamp(18px,2.6vw,28px);
  border:1px solid var(--yb-line);
  background:linear-gradient(155deg,rgba(214,255,75,.08) 0%,rgba(17,26,22,.72) 58%,rgba(17,26,22,.9) 100%);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  transition:border-color .24s var(--yb-ease),background-color .24s var(--yb-ease);
}
.yb-panel::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:34px;
  height:2px;
  background:var(--yb-lime);
}
.yb-panel:hover{border-color:rgba(214,255,75,.45)}
.yb-panel--solid{
  background:var(--yb-carbon);
  -webkit-backdrop-filter:none;
  backdrop-filter:none;
}
.yb-panel--solid::before{background:var(--yb-orange)}

/* ---------- 12. Media ---------- */
.yb-media{
  position:relative;
  margin:0;
  overflow:hidden;
  border:1px solid var(--yb-line);
  background:linear-gradient(150deg,#111A16,#0A1712);
}
.yb-media::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  z-index:2;
  width:38px;
  height:2px;
  background:var(--yb-lime);
}
.yb-media__img,
.yb-media img{
  display:block;
  width:100%;
  aspect-ratio:16 / 10;
  object-fit:cover;
  filter:saturate(.92) contrast(1.04);
}
.yb-media--phone .yb-media__img,
.yb-media--phone img{aspect-ratio:9 / 16}
.yb-media--wide .yb-media__img,
.yb-media--wide img{aspect-ratio:21 / 9}
.yb-media__cap{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:2;
  padding:10px 14px;
  background:linear-gradient(0deg,rgba(7,19,15,.92),rgba(7,19,15,0));
  font-family:var(--yb-font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--yb-white);
}

/* ---------- 13. Score ---------- */
.yb-score{display:flex;flex-direction:column;gap:.15em}
.yb-score__num{
  font-family:var(--yb-font-mono);
  font-size:clamp(28px,4vw,44px);
  font-weight:600;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--yb-lime);
}
.yb-score__label{
  font-family:var(--yb-font-body);
  font-size:12px;
  font-weight:500;
  letter-spacing:.1em;
  color:var(--yb-stone);
}

/* ---------- 14. Tabs / filter ---------- */
.yb-tabs__list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:20px;
  padding-bottom:10px;
  border-bottom:1px solid var(--yb-line);
}
.yb-tabs__btn{
  padding:10px 14px;
  border:1px solid var(--yb-line);
  background:rgba(17,26,22,.6);
  color:var(--yb-stone);
  font-family:var(--yb-font-body);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  line-height:1.2;
  transition:background-color .22s var(--yb-ease),color .22s var(--yb-ease),border-color .22s var(--yb-ease);
}
.yb-tabs__btn:hover{color:var(--yb-white);border-color:var(--yb-line-strong)}
.yb-tabs__btn[aria-selected="true"]{
  background:var(--yb-lime);
  border-color:var(--yb-lime);
  color:var(--yb-ink);
}
.yb-tabs__panel[hidden]{display:none}

.yb-filter{display:flex;flex-wrap:wrap;gap:8px}
.yb-filter__btn{
  padding:8px 13px;
  border:1px solid var(--yb-line);
  background:rgba(17,26,22,.6);
  color:var(--yb-stone);
  font-family:var(--yb-font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.08em;
  line-height:1.4;
  transition:background-color .22s var(--yb-ease),color .22s var(--yb-ease),border-color .22s var(--yb-ease);
}
.yb-filter__btn:hover{color:var(--yb-white);border-color:var(--yb-line-strong)}
.yb-filter__btn[aria-pressed="true"]{
  background:var(--yb-lime);
  border-color:var(--yb-lime);
  color:var(--yb-ink);
}
.is-filtered-out{display:none !important}

/* ---------- 15. Responsive ---------- */
@media (max-width:1080px){
  .yb-header__status{max-width:none;font-size:10px}
  .yb-footer__top{grid-template-columns:minmax(0,1fr);gap:32px}
}

@media (max-width:920px){
  .yb-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .yb-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:860px){
  .yb-masthead{
    grid-template-columns:minmax(0,1fr) auto;
    padding-block:12px;
  }
  .yb-header__status{display:none}
  .yb-masthead__side{display:none}
  .yb-brand{justify-self:start}
  .yb-navtoggle{display:inline-flex}
  .yb-nav{
    display:none;
    border-top:1px solid var(--yb-line);
    max-height:calc(100vh - 96px);
    overflow-y:auto;
    padding-bottom:10px;
  }
  .yb-header[data-open] .yb-nav{display:block}
  .yb-nav__list{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;padding:6px 0}
  .yb-nav__item{width:100%}
  .yb-nav__item + .yb-nav__item{border-top:1px solid rgba(157,170,162,.14)}
  .yb-nav__link{
    width:100%;
    justify-content:flex-start;
    padding:15px 10px;
    font-size:15px;
  }
  .yb-nav__idx{margin-left:auto;order:2;color:var(--yb-grid)}
  .yb-nav__link::after{display:none}
  .yb-nav__link[aria-current="page"]{
    background:var(--yb-glass);
    box-shadow:inset 3px 0 0 var(--yb-lime);
  }
  .yb-nav__cta{
    display:flex;
    align-items:center;
    justify-content:center;
    margin:14px 10px 6px;
    padding:14px 16px;
    background:var(--yb-lime);
    color:var(--yb-ink);
    font-size:14px;
    font-weight:600;
    letter-spacing:.08em;
    text-decoration:none;
  }
  .yb-nav__cta:hover{background:var(--yb-white);color:var(--yb-ink)}
  #main-content{scroll-margin-top:96px}
}

@media (max-width:760px){
  .yb-grid--2,
  .yb-grid--3{grid-template-columns:minmax(0,1fr)}
  .yb-tabs__list{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .yb-tabs__btn{flex:0 0 auto}
}

@media (max-width:600px){
  .yb-footer__nav{grid-template-columns:minmax(0,1fr);gap:26px}
  .yb-contact{grid-template-columns:minmax(0,1fr)}
  .yb-footer__base{flex-direction:column;align-items:flex-start}
  .yb-footer__mini{gap:14px}
  .yb-media--wide .yb-media__img,
  .yb-media--wide img{aspect-ratio:16 / 10}
}

/* ---------- 16. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .yb-progress__bar{transition:none}
}