*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --c-deep:#0A192F;
  --c-mid:#112240;
  --c-card:#1D2D50;
  --c-accent:#FF6B35;
  --c-accent2:#39FF14;
  --c-white:#E6F1FF;
  --c-slate:#8892B0;
  --grad-panel:linear-gradient(135deg,#0A192F,#112240);
  --grad-cta:linear-gradient(90deg,#FF6B35,#FFA500);
  --glow:rgba(57,255,20,.3);
  --font-head:"Noto Sans SC","Heiti SC","Microsoft YaHei",sans-serif;
  --font-num:"Roboto Mono","SF Mono","SFMono-Regular","Consolas",monospace;
  --font-body:"Noto Sans SC","Helvetica Neue","Arial",sans-serif;
  --w-max:1200px;
  --header-nav-h:60px
}
html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);font-size:16px;line-height:1.75;color:var(--c-white);background:radial-gradient(1100px 700px at 85% -10%,rgba(57,255,20,.07),transparent 60%),radial-gradient(900px 560px at -10% 18%,rgba(255,107,53,.08),transparent 60%),var(--c-deep);overflow-x:hidden;min-height:100vh}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;background:none;border:0;color:inherit;cursor:pointer}
::selection{background:rgba(255,107,53,.85);color:#0A192F}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--c-deep)}
::-webkit-scrollbar-thumb{background:var(--c-card);border:2px solid var(--c-deep)}
::-webkit-scrollbar-thumb:hover{background:var(--c-accent)}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:2px}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:900;line-height:1.2;color:var(--c-white);text-wrap:balance}
p{text-wrap:pretty}
.container{width:min(calc(100% - 48px),var(--w-max));margin-inline:auto}
.main-content{position:relative;z-index:1}
.main-content:focus{outline:none}
.main-content:focus-visible{outline:2px dashed var(--c-accent2);outline-offset:-4px}
.skip-link{position:fixed;top:-100px;left:16px;z-index:300;background:var(--grad-cta);color:#0A192F;font-weight:700;font-size:14px;padding:10px 18px;box-shadow:0 6px 24px rgba(255,107,53,.5);transition:top .25s ease}
.skip-link:focus{top:12px}
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:100%;z-index:400;pointer-events:none;background:var(--grad-cta);box-shadow:0 0 14px var(--glow);transform:scaleX(0);transform-origin:left}
.site-header{position:relative;z-index:130;background:var(--c-deep)}
.site-header::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(115deg,rgba(57,255,20,.05) 0 1px,transparent 1px 16px);pointer-events:none}
.header-top{border-bottom:1px solid rgba(136,146,176,.18)}
.header-top-inner{display:flex;align-items:center;gap:24px;min-height:64px}
.brand{display:flex;flex-direction:column;line-height:1.15;position:relative;padding-left:24px;flex-shrink:0}
.brand::before{content:"";position:absolute;left:0;top:4px;width:9px;height:calc(100% - 8px);background:linear-gradient(180deg,var(--c-accent),var(--c-accent2));clip-path:polygon(0 0,100% 0,100% 100%,0 78%)}
.brand-text{font-family:var(--font-head);font-weight:900;font-size:22px;letter-spacing:.04em;color:#fff;white-space:nowrap}
.brand-sub{font-family:var(--font-num);font-size:10px;letter-spacing:.34em;color:var(--c-accent2);text-transform:uppercase}
.header-slogan{display:flex;align-items:baseline;gap:12px;margin-left:8px;flex:1;min-width:0}
.slogan-cn{font-size:14px;color:var(--c-slate);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slogan-note{font-family:var(--font-num);font-size:10px;color:#fff;background:rgba(255,107,53,.16);border-left:2px solid var(--c-accent);padding:2px 10px;transform:rotate(-2deg);letter-spacing:.15em;flex-shrink:0}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.guide-link{font-size:14px;color:var(--c-slate);display:inline-flex;align-items:center;gap:6px;transition:color .2s}
.guide-link::before{content:"→";color:var(--c-accent);font-family:var(--font-num);font-weight:500}
.guide-link:hover{color:#fff}
.btn{padding:9px 18px;font-size:14px;font-weight:700;border-radius:0;background:var(--c-card);color:var(--c-white);display:inline-flex;align-items:center;gap:8px;transition:transform .25s,box-shadow .25s,filter .25s}
.btn-cta{background:var(--grad-cta);color:#0A192F;box-shadow:0 4px 24px rgba(255,107,53,.35)}
.btn-cta:hover{transform:translateY(-2px) rotate(.5deg);box-shadow:0 8px 30px rgba(255,107,53,.5);color:#0A192F}
.nav-toggle{display:none;width:44px;height:44px;margin-left:auto;flex-direction:column;align-items:center;justify-content:center;gap:4px;border:1px solid rgba(136,146,176,.3);background:rgba(29,45,80,.5);transition:border-color .25s}
.nav-toggle[aria-expanded="true"]{border-color:var(--c-accent)}
.nav-toggle-bar{width:20px;height:2px;background:#fff;transition:transform .3s ease,opacity .3s ease}
[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle-label{font-size:10px;color:var(--c-slate);letter-spacing:.1em}
.header-nav{position:sticky;top:0;z-index:120;background:rgba(10,25,47,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(136,146,176,.15);transition:box-shadow .3s ease}
.header-nav.is-stuck{box-shadow:0 10px 30px rgba(0,0,0,.45)}
.header-nav-inner{display:flex;align-items:center;min-height:var(--header-nav-h);gap:24px}
.nav-list{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-list a{position:relative;display:inline-flex;align-items:center;gap:8px;padding:10px 14px;font-size:15px;font-weight:700;color:#c9d4e8;transition:color .25s,background .25s}
.nav-list a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.nav-list a:hover{color:#fff}
.nav-list a:hover::after{transform:scaleX(1)}
.nav-list a[aria-current="page"]{color:#fff;background:rgba(255,107,53,.1)}
.nav-list a[aria-current="page"]::after{transform:scaleX(1)}
.nav-meta{display:flex;align-items:center;gap:16px;margin-left:auto;flex-shrink:0}
.nav-status{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:11px;letter-spacing:.05em;color:var(--c-slate)}
.status-dot{width:8px;height:8px;background:var(--c-accent2);border-radius:50%;box-shadow:0 0 10px var(--glow);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{50%{opacity:.35}}
.nav-meta .btn-cta{font-size:13px;padding:8px 14px}
.guide-link-mobile{display:none}
.to-top{position:fixed;right:18px;bottom:18px;z-index:200;width:44px;height:44px;background:var(--c-card);border:1px solid rgba(136,146,176,.3);color:#fff;font-family:var(--font-num);font-size:20px;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s,visibility .3s,transform .3s,background .2s}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-accent);color:#0A192F;box-shadow:0 0 18px rgba(255,107,53,.5)}
.site-footer{position:relative;background:linear-gradient(180deg,var(--c-deep),var(--c-mid));border-top:1px solid rgba(136,146,176,.15);overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,var(--c-accent),var(--c-accent2))}
.footer-grid{display:grid;grid-template-columns:2.2fr 1.6fr 1.4fr 110px;gap:40px 32px;padding:60px 0 44px}
.footer-brand .brand{margin-bottom:18px}
.footer-about{color:var(--c-slate);font-size:14px;max-width:34ch;margin-bottom:16px}
.footer-status{display:flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:12px;color:var(--c-accent2);margin-bottom:12px}
.footer-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(57,255,20,.08);border:1px solid var(--glow);color:var(--c-accent2);font-family:var(--font-num);font-size:11px;letter-spacing:.1em;padding:4px 12px}
.footer-title{font-size:14px;font-weight:900;letter-spacing:.2em;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.footer-title::before{content:"";width:6px;height:6px;background:var(--c-accent);transform:rotate(45deg)}
.footer-contact-list li{display:flex;flex-direction:column;gap:2px;padding:8px 0;border-bottom:1px dashed rgba(136,146,176,.15);color:var(--c-slate);font-size:14px}
.footer-contact-list li span{font-family:var(--font-num);font-size:11px;letter-spacing:.15em;color:var(--c-accent)}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}
.footer-links a{font-size:14px;color:var(--c-slate);padding:5px 0;transition:color .2s,padding .2s,box-shadow .2s}
.footer-links a:hover{color:#fff;padding-left:6px;box-shadow:inset 2px 0 0 var(--c-accent)}
.footer-note{display:flex;justify-content:flex-end}
.note-vertical{writing-mode:vertical-rl;font-family:var(--font-num);font-size:11px;letter-spacing:.45em;color:var(--c-slate);text-transform:uppercase;border-left:1px solid rgba(255,107,53,.4);padding-left:10px}
.footer-bottom{border-top:1px solid rgba(136,146,176,.12)}
.footer-bottom-inner{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;align-items:center;padding:18px 0;color:var(--c-slate);font-size:12px;font-family:var(--font-num)}
.section{position:relative;padding:80px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:clamp(28px,4vw,44px)}
.lead{color:var(--c-slate);font-size:15px;max-width:60ch}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.28em;color:var(--c-accent);text-transform:uppercase}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--c-accent)}
.grid-sports{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.bento-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px;align-items:stretch}
.card{position:relative;background:var(--c-card);padding:24px;box-shadow:0 0 0 1px rgba(136,146,176,.08)}
.card::after{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--c-accent),transparent 70%)}
.card-highlight{background:linear-gradient(135deg,var(--c-mid),var(--c-card))}
.tilt{transform:rotate(-.6deg)}
.tilt-right{transform:rotate(.6deg)}
.stat{font-family:var(--font-num)}
.stat-num{font-size:34px;font-weight:500;line-height:1.1;color:#fff}
.stat-label{font-size:12px;color:var(--c-slate);letter-spacing:.12em}
.badge-live{display:inline-flex;align-items:center;gap:6px;background:rgba(57,255,20,.1);color:var(--c-accent2);font-family:var(--font-num);font-size:11px;letter-spacing:.08em;padding:3px 10px}
.img-shell{position:relative;background:var(--c-mid);overflow:hidden;aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;color:var(--c-slate);font-size:13px}
.img-shell img{width:100%;height:100%;object-fit:cover}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px 12px;font-size:13px;color:var(--c-slate);padding:18px 0}
.breadcrumb a{color:var(--c-slate);transition:color .2s}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .crumb-current{color:#fff}
.chapter-nav{position:sticky;top:76px;max-height:calc(100vh - 96px);overflow:auto;background:var(--c-mid);padding:12px;border-left:2px solid var(--c-accent)}
.chapter-nav a{display:block;padding:8px 12px;color:var(--c-slate);font-size:14px;border-bottom:1px solid rgba(136,146,176,.12);transition:color .2s,background .2s}
.chapter-nav a:hover{color:#fff}
.chapter-nav a.is-active{color:#fff;background:rgba(255,107,53,.14);box-shadow:inset 2px 0 0 var(--c-accent)}
.chapter-nav a[aria-current="true"]{color:#fff;background:rgba(255,107,53,.14);box-shadow:inset 2px 0 0 var(--c-accent)}
@keyframes navIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@media (max-width:1023px){
  .header-slogan{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px}
  .footer-note{display:none}
}
@media (max-width:767px){
  .container{width:calc(100% - 32px)}
  .header-top-inner{min-height:56px;gap:12px}
  .brand-text{font-size:18px}
  .brand-sub{font-size:9px;letter-spacing:.28em}
  .brand{padding-left:20px}
  .brand::before{width:7px}
  .header-actions .guide-link{display:none}
  .nav-toggle{display:flex}
  .header-nav{display:none}
  .header-nav[data-open]{display:block;animation:navIn .25s ease}
  .header-nav-inner{flex-direction:column;align-items:stretch;gap:0;padding-bottom:16px}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list a{width:100%;padding:13px 12px;border-bottom:1px solid rgba(136,146,176,.12);font-size:16px}
  .nav-list a::after{display:none}
  .nav-list a[aria-current="page"]{background:rgba(255,107,53,.12);border-left:3px solid var(--c-accent)}
  .nav-meta{flex-direction:row;flex-wrap:wrap;margin-left:0;padding:12px 12px 0;gap:12px}
  .nav-status{margin-left:auto}
  .guide-link-mobile{display:inline-flex}
  .section{padding:56px 0}
  .section-head{margin-bottom:24px}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 28px;gap:32px}
  .footer-links{grid-template-columns:1fr 1fr}
  .footer-bottom-inner{flex-direction:column;align-items:center;text-align:center}
  .chapter-nav{position:relative;top:auto;display:flex;overflow-x:auto;gap:4px;border-left:0;border-top:2px solid var(--c-accent)}
  .chapter-nav a{flex:0 0 auto;border-bottom:0}
  .to-top{right:12px;bottom:12px;width:40px;height:40px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .scroll-progress{display:none}
  .status-dot{animation:none}
}