:root{
  --deep-blue:#0A1F44;
  --mid-blue:#1E3A6E;
  --accent:#FF6B35;
  --accent-soft:#FF8F65;
  --silver:#C0C0C0;
  --cream:#F7F3EE;
  --ink:#1A1A1A;
  --mist:#E8ECF1;
  --white:#FFFFFF;
  --warp:1280px;
  --ease: cubic-bezier(.19,1,.22,1);
  --header-h:76px;
  --radius-cut: 10px 2px 14px 2px;
}

*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}

html{
  scroll-behavior:smooth;
  background:var(--cream);
}

body{
  font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--cream);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{
  max-width:100%;
  display:block;
}

ul,ol{
  list-style:none;
}

a{
  color:inherit;
  text-decoration:none;
}

button{
  font:inherit;
  border:none;
  background:none;
  cursor:pointer;
}

:focus-visible{
  outline:3px solid var(--accent);
  outline-offset:3px;
  border-radius:2px;
}

::selection{
  background:var(--accent);
  color:var(--white);
}

.visually-hidden{
  position:absolute !important;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

.skip-link{
  position:fixed;
  top:-100px;
  left:16px;
  z-index:2000;
  background:var(--deep-blue);
  color:var(--white);
  padding:12px 20px;
  font-size:14px;
  font-weight:500;
  border-bottom-left-radius:8px;
  border-bottom-right-radius:8px;
  transition:top .3s var(--ease);
}

.skip-link:focus{
  top:0;
}

.site-container{
  width:min(100% - 40px,var(--warp));
  margin-inline:auto;
}

.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  background:transparent;
  transition:background .4s var(--ease),box-shadow .4s var(--ease);
}

.site-header[data-scrolled="true"]{
  background:var(--deep-blue);
  box-shadow:0 8px 30px rgba(10,31,68,.25);
}

.header-inner{
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}

.brand-lockup{
  display:flex;
  align-items:baseline;
  gap:12px;
  min-width:0;
}

.site-logo{
  font-family:"Anton","Impact","Arial Narrow",sans-serif;
  font-size:28px;
  letter-spacing:1px;
  color:var(--white);
  background:var(--accent);
  padding:6px 14px 4px 12px;
  clip-path:polygon(0 0,100% 0,94% 100%,0 100%);
  line-height:1.1;
  display:inline-block;
  white-space:nowrap;
  transition:transform .3s var(--ease);
}

.site-logo:hover{
  transform:translateX(3px);
}

.site-slogan{
  font-size:13px;
  font-weight:500;
  color:rgba(255,255,255,.88);
  letter-spacing:.5px;
  border-left:1px solid rgba(255,255,255,.3);
  padding-left:12px;
  white-space:nowrap;
}

.site-nav{
  display:flex;
  align-items:center;
  gap:32px;
}

.site-nav ul{
  display:flex;
  align-items:center;
  gap:4px;
}

.site-nav ul li a{
  display:inline-block;
  padding:10px 12px;
  color:rgba(255,255,255,.92);
  font-size:14px;
  font-weight:500;
  letter-spacing:.3px;
  position:relative;
  white-space:nowrap;
  transition:color .3s var(--ease);
}

.site-nav ul li a::after{
  content:"";
  position:absolute;
  left:12px;
  right:100%;
  bottom:4px;
  height:3px;
  background:var(--accent);
  transition:right .35s var(--ease);
}

.site-nav ul li a:hover{
  color:var(--white);
}

.site-nav ul li a:hover::after{
  right:12px;
}

.site-nav ul li a[aria-current="page"]{
  color:var(--white);
}

.site-nav ul li a[aria-current="page"]::after{
  right:12px;
  background:var(--accent);
}

.nav-cta{
  margin-left:8px;
}

.btn-strong{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--accent);
  color:var(--deep-blue);
  font-size:14px;
  font-weight:700;
  font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;
  letter-spacing:.5px;
  padding:12px 22px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
  transition:background .3s var(--ease),color .3s var(--ease),transform .3s var(--ease);
  white-space:nowrap;
}

.btn-strong:hover{
  background:var(--accent-soft);
  color:var(--deep-blue);
  transform:scale(1.03);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:46px;
  height:46px;
  padding:12px;
  background:rgba(10,31,68,.25);
  border-radius:4px;
  transition:background .3s var(--ease);
}

.site-header[data-scrolled="true"] .nav-toggle{
  background:rgba(255,255,255,.08);
}

.nav-toggle[aria-expanded="true"]{
  background:rgba(255,107,53,.24);
}

.nav-toggle-line{
  display:block;
  width:100%;
  height:3px;
  background:var(--white);
  border-radius:2px;
  transition:transform .3s var(--ease),width .3s var(--ease),opacity .3s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1){
  transform:translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2){
  opacity:0;
  transform:scaleX(.4);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3){
  transform:translateY(-8px) rotate(-45deg);
}

.progress-bar{
  position:fixed;
  top:0;
  left:0;
  height:4px;
  width:0%;
  background:linear-gradient(90deg,var(--accent),var(--accent-soft));
  z-index:1200;
  border-radius:0 4px 4px 0;
  pointer-events:none;
  transition:width .12s linear;
}

.site-footer{
  background:var(--deep-blue);
  color:rgba(255,255,255,.85);
  position:relative;
  padding:72px 0 28px;
  overflow:hidden;
}

.site-footer::before{
  content:"B体育";
  position:absolute;
  top:-30px;
  right:8%;
  font-family:"Anton","Impact","Arial Narrow",sans-serif;
  font-size:180px;
  line-height:1;
  color:rgba(255,255,255,.035);
  pointer-events:none;
  transform:rotate(8deg);
  white-space:nowrap;
}

.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.3fr;
  gap:48px;
  position:relative;
  z-index:2;
}

.footer-brand .footer-logo{
  display:inline-block;
  font-family:"Anton","Impact","Arial Narrow",sans-serif;
  font-size:30px;
  color:var(--white);
  background:var(--accent);
  padding:6px 14px 4px 12px;
  clip-path:polygon(0 0,100% 0,94% 100%,0 100%);
  margin-bottom:18px;
  line-height:1.1;
}

.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.66);
  max-width:320px;
}

.footer-heading{
  font-size:13px;
  font-weight:700;
  color:var(--accent-soft);
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:16px;
  position:relative;
  padding-left:14px;
}

.footer-heading::before{
  content:"";
  position:absolute;
  left:0;
  top:5px;
  bottom:5px;
  width:4px;
  background:var(--accent);
  border-radius:2px;
}

.footer-col ul,
.footer-contact ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}

.footer-col ul li a,
.footer-contact ul li a{
  font-size:14px;
  color:rgba(255,255,255,.75);
  transition:color .3s var(--ease),padding-left .3s var(--ease);
  position:relative;
}

.footer-col ul li a::before,
.footer-contact ul li a::before{
  content:"→";
  position:absolute;
  left:-16px;
  opacity:0;
  color:var(--accent);
  transition:opacity .3s var(--ease),left .3s var(--ease);
}

.footer-col ul li a:hover,
.footer-contact ul li a:hover{
  color:var(--white);
  padding-left:6px;
}

.footer-col ul li a:hover::before,
.footer-contact ul li a:hover::before{
  opacity:1;
  left:-6px;
}

.footer-contact ul li{
  font-size:14px;
  color:rgba(255,255,255,.7);
  line-height:1.6;
}

.footer-bottom{
  margin-top:56px;
  padding-top:28px;
  border-top:1px solid rgba(192,192,192,.18);
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  justify-content:space-between;
  align-items:flex-end;
  font-size:13px;
  color:rgba(255,255,255,.48);
  position:relative;
  z-index:2;
}

.footer-bottom p{
  max-width:720px;
  line-height:1.7;
}

.back-to-top{
  position:absolute;
  right:24px;
  bottom:90px;
  z-index:4;
  width:52px;
  height:52px;
  background:var(--accent);
  color:var(--deep-blue);
  font-size:24px;
  display:flex;
  align-items:center;
  justify-content:center;
  clip-path:polygon(0 0,100% 0,100% 60%,90% 100%,0 100%);
  transition:background .3s var(--ease),transform .3s var(--ease);
  box-shadow:0 6px 20px rgba(255,107,53,.3);
}

.back-to-top:hover{
  background:var(--accent-soft);
  transform:translateY(-4px);
}

.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:2px solid var(--deep-blue);
  color:var(--deep-blue);
  background:transparent;
  padding:10px 22px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.5px;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%);
}

.btn-line:hover{
  background:var(--accent);
  border-color:var(--accent);
  color:var(--white);
}

.section-anchor{
  scroll-margin-top:calc(var(--header-h) + 20px);
}

.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:500;
  color:var(--mid-blue);
  letter-spacing:1px;
  text-transform:uppercase;
  margin-bottom:10px;
}

.section-label::before{
  content:"";
  width:24px;
  height:3px;
  background:var(--accent);
  border-radius:2px;
}

.eabreadcrumb{
  font-size:14px;
  color:var(--mid-blue);
  margin-bottom:24px;
  padding-left:14px;
  border-left:3px solid var(--accent);
  line-height:1.5;
}

.eabreadcrumb a{
  color:var(--mid-blue);
  font-weight:500;
  transition:color .3s var(--ease);
}

.eabreadcrumb a:hover{
  color:var(--accent);
}

.page-hero{
  background:var(--deep-blue);
  color:var(--white);
  min-height:320px;
  display:flex;
  align-items:flex-end;
  padding:calc(var(--header-h) + 48px) 0 56px;
  position:relative;
  overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 32px),0 100%);
}

.page-hero .site-container{
  display:flex;
  flex-direction:column;
  gap:10px;
  position:relative;
  z-index:2;
}

.page-hero::after{
  content:"";
  position:absolute;
  right:-60px;
  top:40px;
  width:280px;
  height:280px;
  background:
    linear-gradient(135deg,transparent 48%,var(--accent) 49%,var(--accent) 50%,transparent 51%),
    linear-gradient(45deg,transparent 48%,var(--mid-blue) 49%,var(--mid-blue) 50%,transparent 51%);
  background-size:40px 40px;
  opacity:.25;
  transform:rotate(12deg);
  z-index:1;
}

.page-hero h1{
  font-family:"Anton","Impact","Arial Narrow",sans-serif;
  font-weight:400;
  font-size:64px;
  line-height:1.1;
  letter-spacing:1px;
  text-transform:uppercase;
  max-width:900px;
  color:var(--white);
}

.page-hero .hero-abstract{
  font-size:17px;
  color:rgba(255,255,255,.72);
  max-width:560px;
  line-height:1.8;
}

.hero-number{
  font-family:"Furore","Rajdhani","DIN Alternate",sans-serif;
  font-size:64px;
  font-weight:700;
  line-height:1;
  color:var(--accent);
}

.hero-number small{
  font-size:20px;
  font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;
  color:var(--silver);
  margin-left:6px;
}

.container-narrow{
  width:min(100% - 40px,880px);
  margin-inline:auto;
}

.container-wide{
  width:min(100% - 40px,var(--warp));
  margin-inline:auto;
}

.page-content{
  padding:56px 0 72px;
}

.card-dash{
  background:var(--white);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
  padding:28px 32px;
  position:relative;
  box-shadow:0 8px 24px rgba(10,31,68,.06);
}

.card-dash::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:6px;
  height:100%;
  background:var(--accent);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .4s var(--ease);
}

.card-dash:hover::before{
  transform:scaleY(1);
}

.tag-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:var(--cream);
  border-left:3px solid var(--accent);
  color:var(--deep-blue);
  font-size:13px;
  font-weight:500;
  padding:5px 12px;
  letter-spacing:.3px;
}

.data-table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
}

.data-table th{
  text-align:left;
  font-size:13px;
  font-weight:500;
  color:var(--mid-blue);
  text-transform:uppercase;
  letter-spacing:1px;
  padding:12px 14px;
  border-bottom:2px solid var(--silver);
}

.data-table td{
  padding:14px;
  border-bottom:1px solid var(--mist);
  color:var(--ink);
}

.data-table tr:hover td{
  background:rgba(255,107,53,.06);
}

.data-table .num{
  font-family:"Furore","Rajdhani","DIN Alternate",sans-serif;
  font-weight:700;
  color:var(--deep-blue);
  font-size:22px;
}

.eyebrow{
  font-size:13px;
  font-weight:500;
  color:var(--silver);
  letter-spacing:1.5px;
  text-transform:uppercase;
}

.image-container{
  position:relative;
  overflow:hidden;
  background:var(--mist);
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:180px;
  isolation:isolate;
}

.image-container::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(120deg,transparent 40%,rgba(255,255,255,.35) 50%,transparent 60%),
    repeating-linear-gradient(45deg,rgba(10,31,68,.06) 0 2px,transparent 2px 10px);
  z-index:-1;
}

.image-container > img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}

.image-container:hover > img{
  transform:scale(1.03);
}

.aspect-wide{
  aspect-ratio:16/7;
}

.aspect-square{
  aspect-ratio:1/1;
}

.aspect-portrait{
  aspect-ratio:4/5;
}

.aspect-3-2{
  aspect-ratio:3/2;
}

@media (max-width:1024px){
  .footer-grid{
    grid-template-columns:1.4fr 1fr 1fr;
    gap:32px;
  }
  .footer-contact{
    grid-column:1 / -1;
    border-top:1px solid rgba(255,255,255,.1);
    padding-top:24px;
  }
  .site-nav{
    gap:20px;
  }
}

@media (max-width:860px){
  .nav-toggle{
    display:flex;
  }
  .site-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    background:var(--deep-blue);
    flex-direction:column;
    align-items:stretch;
    padding:24px 24px 34px;
    gap:18px;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),0 100%);
    box-shadow:0 18px 40px rgba(10,31,68,.35);
    transform:translateY(calc(-100% - 16px));
    transition:transform .45s var(--ease);
    z-index:999;
  }
  .site-nav[data-open="true"]{
    transform:translateY(0);
  }
  .site-nav ul{
    flex-direction:column;
    align-items:stretch;
    width:100%;
  }
  .site-nav ul li a{
    display:block;
    padding:14px 6px;
    font-size:18px;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .site-nav ul li a::after{
    display:none;
  }
  .nav-cta{
    margin-left:0;
    margin-top:12px;
  }
  .nav-cta .btn-strong{
    width:100%;
    justify-content:center;
  }
  .site-slogan{
    display:none;
  }
  .page-hero h1{
    font-size:46px;
  }
  .page-hero .hero-abstract{
    font-size:15px;
  }
  .hero-number{
    font-size:48px;
  }
}

@media (max-width:640px){
  .site-container{
    width:min(100% - 24px,var(--warp));
  }
  .header-inner{
    min-height:68px;
  }
  .site-logo{
    font-size:22px;
  }
  .site-header[data-scrolled="true"]{
    background:var(--deep-blue);
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer-contact{
    grid-column:auto;
    padding-top:20px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .page-hero{
    min-height:280px;
    padding:calc(var(--header-h) + 32px) 0 44px;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),0 100%);
  }
  .page-hero h1{
    font-size:36px;
  }
  .card-dash{
    padding:22px 16px;
  }
  .btn-strong{
    width:100%;
    justify-content:center;
  }
  .back-to-top{
    width:44px;
    height:44px;
    right:12px;
    bottom:110px;
    font-size:18px;
  }
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .site-nav{
    transition:none;
  }
  .progress-bar{
    transition:none;
  }
}