/* ============ RESET & TOKENS ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--color-canvas);
  color:var(--color-ink);
  line-height:1.8;
  font-weight:400;
  min-height:100vh;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:var(--color-links);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:4px}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:none;appearance:none;-webkit-appearance:none}
:focus-visible{outline:3px solid var(--color-orange);outline-offset:3px;border-radius:0}

:root{
  --color-navy:#0B2A4A;
  --color-navy-2:#1B5E8F;
  --color-orange:#FF6B0A;
  --color-gold:#F5A623;
  --color-red:#D9381E;
  --color-canvas:#F4F7FA;
  --color-ink:#1A1A1A;
  --color-white:#FFFFFF;
  --color-grad-o:#FF9A51;
  --color-grad-d:#0A1E33;
  --color-grad-r:#E85A2A;
  --font-headline:"Source Han Sans SC","Noto Sans SC","Alibaba PuHuiTi",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-numeric:"DIN Alternate","Roboto Mono",monospace;
  --space-1:.25rem;
  --space-2:.5rem;
  --space-3:1rem;
  --space-4:1.5rem;
  --space-5:2rem;
  --space-6:3rem;
  --space-7:4rem;
  --space-8:6rem;
  --container-w:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --duration:.3s;
  --header-h:auto;
}

/* ============ SKIP LINK ============ */
.skip-link{
  position:fixed;top:0;left:0;z-index:9999;
  background:var(--color-orange);color:#fff;padding:.75rem 1.5rem;
  transform:translateY(-100%);transition:transform .2s var(--ease);
  font-weight:700;
}
.skip-link:focus{transform:translateY(0)}

/* ============ HEADER ============ */
.site-header{
  background:var(--color-navy);
  color:#fff;
  border-bottom:2px solid var(--color-orange);
}
.site-header__inner{
  max-width:1440px;
  margin:0 auto;
  padding:var(--space-5) var(--space-4) 0;
  display:flex;
  flex-direction:column;
  align-items:center;
  position:relative;
}
.site-brand{
  text-align:center;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:var(--space-1);
  color:#fff;
}
.site-brand:hover{text-decoration:none}
.site-brand__name{
  font-family:var(--font-headline);
  font-weight:900;
  font-size:clamp(2.5rem,7vw,4.5rem);
  line-height:1;
  letter-spacing:-0.02em;
  color:#fff;
  text-transform:uppercase;
}
.site-brand__tagline{
  font-size:.75rem;
  letter-spacing:.35em;
  text-indent:.35em;
  color:rgba(255,255,255,.65);
  text-transform:uppercase;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  margin:var(--space-3) auto 0;
  flex-direction:column;
  gap:6px;
  justify-content:center;
  align-items:center;
  cursor:pointer;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.2);
}
.nav-toggle__bar{
  width:22px;height:2px;background:#fff;
  transition:transform .2s var(--ease),opacity .2s;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.site-nav{
  width:100%;
}
.site-nav__list{
  display:flex;
  justify-content:center;
  gap:0;
  border-top:1px solid rgba(255,255,255,.14);
  margin-top:var(--space-4);
}
.site-nav__list li{position:relative}
.site-nav__list a{
  display:block;
  padding:var(--space-3) var(--space-4);
  color:rgba(255,255,255,.72);
  font-size:.9rem;
  letter-spacing:.12em;
  transition:color .2s,background .2s;
  white-space:nowrap;
}
.site-nav__list a:hover{
  color:#fff;
  text-decoration:none;
  background:rgba(255,255,255,.06);
}
.site-nav__list a[aria-current="page"]{
  color:var(--color-orange);
  font-weight:700;
}
.site-nav__list a[aria-current="page"]::after{
  content:"";
  position:absolute;left:var(--space-4);right:var(--space-4);bottom:0;
  height:3px;background:var(--color-orange);
}
@media (max-width:860px){
  .site-header__inner{padding-top:var(--space-4)}
  .nav-toggle{display:flex}
  .site-nav{
    display:none;
    overflow:hidden;
  }
  .site-nav[data-open]{
    display:block;
  }
  .site-nav__list{
    flex-direction:column;
    border-top:none;
    margin-top:0;
  }
  .site-nav__list li{
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .site-nav__list a{
    padding:var(--space-3) var(--space-3);
    text-align:center;
  }
  .site-nav__list a[aria-current="page"]::after{
    left:50%;right:auto;width:60px;transform:translateX(-50%);
  }
}

/* ============ FOOTER ============ */
.site-footer{
  background:linear-gradient(135deg,var(--color-grad-d) 0%,var(--color-navy) 55%,#123653 100%);
  color:rgba(255,255,255,.85);
  border-top:6px solid var(--color-orange);
}
.site-footer__inner{
  max-width:var(--container-w);
  margin:0 auto;
  padding:var(--space-7) var(--space-4) var(--space-5);
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:var(--space-6);
}
.site-footer__logo{
  font-family:var(--font-headline);
  font-weight:900;
  font-size:2rem;
  color:#fff;
  letter-spacing:-0.02em;
}
.site-footer__desc{
  font-size:.8rem;
  color:rgba(255,255,255,.55);
  letter-spacing:.15em;
  text-transform:uppercase;
  margin-top:var(--space-1);
}
.site-footer__trust{
  font-size:.8rem;
  line-height:1.7;
  color:rgba(255,255,255,.45);
  margin-top:var(--space-4);
  border-left:3px solid var(--color-gold);
  padding-left:var(--space-3);
  max-width:36ch;
}
.site-footer__heading{
  font-size:.9rem;
  font-weight:700;
  color:#fff;
  letter-spacing:.2em;
  text-transform:uppercase;
  border-bottom:1px solid rgba(255,255,255,.15);
  padding-bottom:var(--space-2);
  margin-bottom:var(--space-3);
}
.footer-nav,.footer-contact{
  display:flex;
  flex-direction:column;
  gap:var(--space-2);
}
.footer-nav a{
  color:rgba(255,255,255,.7);
  font-size:.9rem;
  transition:color .2s,padding-left .2s;
}
.footer-nav a:hover{
  color:var(--color-orange);
  padding-left:6px;
  text-decoration:none;
}
.footer-contact{
  font-size:.82rem;
  color:rgba(255,255,255,.6);
  line-height:1.6;
}
.footer-contact a{
  color:var(--color-gold);
  transition:color .2s;
}
.footer-contact a:hover{
  color:#fff;
}
.site-footer__bottom{
  background:rgba(0,0,0,.28);
  border-top:1px solid rgba(255,255,255,.08);
}
.site-footer__bottom-inner{
  max-width:var(--container-w);
  margin:0 auto;
  padding:var(--space-3) var(--space-4);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:var(--space-3);
  font-size:.75rem;
  color:rgba(255,255,255,.5);
}
.site-footer__bottom a{
  color:rgba(255,255,255,.7);
  margin-left:var(--space-2);
}
.site-footer__bottom a:hover{
  color:var(--color-orange);
}
@media (max-width:1024px){
  .site-footer__inner{
    grid-template-columns:1fr 1fr;
    gap:var(--space-5);
  }
}
@media (max-width:600px){
  .site-footer__inner{
    grid-template-columns:1fr;
    gap:var(--space-4);
    padding-top:var(--space-5);
  }
  .site-footer__bottom-inner{
    flex-direction:column;
    text-align:center;
  }
}

/* ============ LAYOUT & CONTENT ============ */
.container{
  max-width:var(--container-w);
  margin:0 auto;
  padding:0 var(--space-4);
}
@media (max-width:600px){
  .container{padding:0 var(--space-3)}
}

main{
  display:block;
  min-height:60vh;
}

/* ============ PROSE ============ */
.prose{
  max-width:760px;
  margin:0 auto;
  font-size:1rem;
  color:var(--color-ink);
}
.prose h2{
  font-family:var(--font-headline);
  font-weight:900;
  font-size:1.6rem;
  letter-spacing:-0.01em;
  margin:var(--space-6) 0 var(--space-3);
  border-left:5px solid var(--color-orange);
  padding-left:var(--space-3);
}
.prose h3{
  font-size:1.1rem;
  font-weight:700;
  margin:var(--space-5) 0 var(--space-2);
}
.prose p{
  margin-bottom:var(--space-4);
}
.prose ul{
  margin:0 0 var(--space-4);
  padding:0;
}
.prose ul li{
  position:relative;
  padding-left:var(--space-4);
  margin-bottom:var(--space-2);
}
.prose ul li::before{
  content:"";
  position:absolute;left:0;top:.7em;
  width:10px;height:10px;
  background:var(--color-navy-2);
}
.prose a{
  color:var(--color-navy-2);
  font-weight:500;
}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:var(--space-2);
  padding:.9rem 1.8rem;
  font-weight:700;
  font-size:.95rem;
  line-height:1;
  letter-spacing:.08em;
  background:transparent;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s,background .2s,color .2s;
  text-decoration:none;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translate(2px,-2px)}
.btn--primary{
  background:var(--color-orange);
  color:#fff;
  box-shadow:4px 4px 0 rgba(0,0,0,.2);
}
.btn--primary:hover{
  background:#E85A0A;
  box-shadow:6px 6px 0 rgba(0,0,0,.15);
}
.btn--ghost{
  border-color:var(--color-navy);
  color:var(--color-navy);
  box-shadow:4px 4px 0 rgba(11,42,74,.12);
}
.btn--ghost:hover{
  background:var(--color-navy);
  color:#fff;
  box-shadow:6px 6px 0 rgba(11,42,74,.2);
}

/* ============ BREADCRUMBS ============ */
.breadcrumbs{
  background:var(--color-white);
  border-bottom:1px solid rgba(11,42,74,.1);
  padding:var(--space-2) 0;
}
.breadcrumbs ol{
  display:flex;
  flex-wrap:wrap;
  gap:var(--space-2);
  font-size:.8rem;
  color:rgba(26,26,26,.55);
}
.breadcrumbs li:not(:last-child)::after{
  content:"/";
  margin-left:var(--space-2);
  color:rgba(26,26,26,.25);
}
.breadcrumbs a{
  color:var(--color-navy-2);
  font-weight:500;
}

/* ============ STAT NUMBERS ============ */
.stat-num{
  font-family:var(--font-numeric);
  font-weight:900;
  font-size:2.5rem;
  line-height:1;
  letter-spacing:-0.02em;
  color:var(--color-navy);
  font-variant-numeric:tabular-nums;
}
.stat-label{
  font-size:.7rem;
  text-transform:uppercase;
  letter-spacing:.2em;
  color:rgba(26,26,26,.6);
}

/* ============ IMAGE FRAME ============ */
.img-frame{
  position:relative;
  width:100%;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(145deg,var(--color-canvas),#e3ecf3);
  border:1px solid rgba(11,42,74,.12);
  display:flex;
  align-items:center;
  justify-content:center;
}
.img-frame--wide{aspect-ratio:21/9}
.img-frame--square{aspect-ratio:1/1}
.img-frame img,.img-frame picture{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
}

/* ============ REVEAL ============ */
[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-visible{
  opacity:1;
  transform:translateY(0);
}

/* ============ ACCORDION ============ */
.detail{
  border-left:3px solid var(--color-navy-2);
  background:var(--color-white);
  transition:border-color .2s;
}
.detail[data-open]{
  border-left-color:var(--color-orange);
}
.detail__toggle{
  width:100%;
  text-align:left;
  padding:var(--space-3) var(--space-3) var(--space-3) var(--space-4);
  font-size:1rem;
  font-weight:700;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-3);
  color:var(--color-ink);
}
.detail__toggle::after{
  content:"+";
  font-family:var(--font-headline);
  font-weight:900;
  font-size:1.4rem;
  color:var(--color-navy-2);
  transition:transform .3s var(--ease);
  flex-shrink:0;
}
.detail[data-open] .detail__toggle::after{
  content:"−";
  transform:rotate(180deg);
  color:var(--color-orange);
}
.detail__content{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .3s var(--ease);
}
.detail__content > *{
  overflow:hidden;
  min-height:0;
}
.detail[data-open] .detail__content{
  grid-template-rows:1fr;
}
.detail__content p,.detail__content ul{
  padding:0 var(--space-4) var(--space-3);
}
.detail__content ul li{
  padding-left:var(--space-3);
  position:relative;
}
.detail__content ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.7em;
  width:8px;
  height:8px;
  background:var(--color-gold);
}

/* ============ FILTER ============ */
.filter-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:var(--space-2);
  margin-bottom:var(--space-4);
}
.filter-tabs button{
  padding:.6rem 1.2rem;
  font-size:.85rem;
  font-weight:700;
  color:var(--color-navy);
  border:2px solid var(--color-navy);
  background:transparent;
  cursor:pointer;
  transition:background .2s,color .2s,border-color .2s;
}
.filter-tabs button:hover{
  background:rgba(11,42,74,.05);
}
.filter-tabs button[data-active]{
  background:var(--color-navy);
  color:#fff;
}
.filter-tabs button[data-active]{
  background:var(--color-navy);
  color:#fff;
  border-color:var(--color-navy);
}
[data-filter-item].is-hidden{
  display:none !important;
}

/* ============ TOP LINK ============ */
.top-link{
  position:fixed;
  right:var(--space-4);
  bottom:var(--space-4);
  z-index:998;
  width:48px;height:48px;
  background:var(--color-navy);
  color:#fff;
  font-size:1.2rem;
  display:flex;
  align-items:center;
  justify-content:center;
  border:2px solid var(--color-orange);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s,transform .3s,visibility .3s;
  cursor:pointer;
}
.top-link.is-visible{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.top-link:hover{
  background:var(--color-orange);
  color:#fff;
}

/* ============ TEXT & COLOR UTIL ============ */
.text-danger{color:var(--color-red)}
.text-gold{color:var(--color-gold)}
.bg-court{background:var(--color-navy);color:#fff}
.bg-ice{background:var(--color-canvas)}
.bg-white{background:#fff}

/* ============ RESPONSIVE EXTRA ============ */
@media (max-width:600px){
  .site-brand__tagline{
    letter-spacing:.16em;
    font-size:.65rem;
  }
  .site-nav__list a{
    font-size:.95rem;
    padding:var(--space-3);
  }
  .prose h2{
    font-size:1.3rem;
  }
  .btn{
    width:100%;
    margin-bottom:var(--space-2);
  }
  .top-link{
    right:var(--space-3);
    bottom:var(--space-3);
  }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  html{
    scroll-behavior:auto;
  }
  [data-reveal]{
    opacity:1;
    transform:none;
  }
  .site-nav{
    transition:none;
  }
}