:root{
  --c-primary:#0B1B2B;
  --c-secondary:#FF6B35;
  --c-accent:#C6FF00;
  --c-bg:#F4EFE6;
  --c-dark-surface:#1C3A5A;
  --c-light-surface:#FFE0D1;
  --c-line:#E5E0D6;
  --c-success:#2A4A43;
  --c-muted:#5D6E7D;
  --c-deep:#EAE2D3;
  --font-display:"Oswald","Arial Narrow","Arial Black","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --font-mono:"Roboto Mono","SF Mono","Cascadia Code",Consolas,monospace;
  --rail-w:96px;
  --bar-h:64px;
  --gutter:clamp(18px,4.2vw,56px);
  --content-max:1400px;
  --ease-out:cubic-bezier(.22,.61,.36,1);
  --progress:0
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--c-bg);color:var(--c-primary);font-family:var(--font-body);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.1;letter-spacing:.015em;text-transform:uppercase;margin:0}
p{margin:0}
ul,ol{list-style:none;margin:0;padding:0}
a{color:inherit;text-decoration:none;transition:color .25s ease}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px}
::selection{background:var(--c-accent);color:var(--c-primary)}
@media (min-width:1180px){
  body{padding-left:var(--rail-w)}
}
.skip-link{position:fixed;top:0;left:0;z-index:2000;transform:translateY(-130%);padding:10px 18px;background:var(--c-accent);color:var(--c-primary);font-family:var(--font-mono);font-size:.78rem;font-weight:700;letter-spacing:.08em;transition:transform .25s var(--ease-out)}
.skip-link:focus{transform:translateY(0)}
.site-header{position:relative;z-index:100}
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:1600;pointer-events:none}
.scroll-progress::after{content:"";display:block;height:100%;background:var(--c-accent);transform:scaleX(var(--progress));transform-origin:left;will-change:transform}
.header-bar{position:sticky;top:0;z-index:90;display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--bar-h);padding:0 var(--gutter);background:var(--c-bg);border-bottom:1px solid var(--c-primary)}
.header-bar::after{content:"";position:absolute;left:0;bottom:-1px;width:66px;height:4px;background:var(--c-secondary)}
.brand{display:inline-flex;align-items:center;gap:12px;min-height:44px}
.brand-block{display:grid;place-items:center;width:44px;height:40px;background:var(--c-primary);color:var(--c-accent);font-family:var(--font-display);font-weight:900;font-size:1.06rem;letter-spacing:.02em;transform:skewX(-10deg)}
.brand-block em{display:inline-block;font-style:normal;transform:skewX(10deg)}
.brand-lock{display:flex;flex-direction:column;line-height:1.15;gap:2px}
.brand-cn{font-family:var(--font-display);font-weight:900;font-size:1.14rem;letter-spacing:.06em}
.brand-en{font-family:var(--font-mono);font-size:.58rem;letter-spacing:.24em;color:var(--c-muted);text-transform:uppercase}
.header-stamp{display:none;align-items:center;gap:9px;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.2em;color:var(--c-muted);text-transform:uppercase;white-space:nowrap}
.header-stamp::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(198,255,0,.2);animation:jy-pulse 2.6s ease-in-out infinite}
@keyframes jy-pulse{0%,100%{opacity:1}50%{opacity:.35}}
@media (min-width:1180px){.header-stamp{display:inline-flex}}
.nav-toggle{display:inline-flex;align-items:center;gap:9px;height:44px;padding:0 12px;border:1px solid var(--c-primary);background:var(--c-bg);transition:border-color .25s}
.nav-toggle:hover{border-color:var(--c-secondary)}
.nav-toggle-label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.2em}
.nav-toggle-icon{position:relative;width:18px;height:14px}
.nav-toggle-line{position:absolute;left:0;width:18px;height:2px;background:var(--c-primary);transition:top .3s var(--ease-out),transform .3s var(--ease-out),left .3s var(--ease-out)}
.nav-toggle-line:nth-child(1){top:2px}
.nav-toggle-line:nth-child(2){bottom:2px}
.nav-toggle:hover .nav-toggle-line:nth-child(1){top:0}
.nav-toggle:hover .nav-toggle-line:nth-child(2){bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1){top:6px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2){top:6px;transform:rotate(-45deg)}
@media (min-width:1180px){.nav-toggle{display:none}}
.site-nav{position:fixed;inset:0;z-index:80;display:flex;flex-direction:column;padding-top:var(--bar-h);background:var(--c-primary);color:#C9D6DF;visibility:hidden;transform:translateX(-100%);transition:transform .45s var(--ease-out),visibility 0s .45s;overflow-y:auto}
.site-nav[data-open]{visibility:visible;transform:translateX(0);transition:transform .45s var(--ease-out)}
.site-nav-close{position:absolute;top:calc(var(--bar-h) + 10px);right:var(--gutter);display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px;border:1px solid rgba(255,255,255,.28);color:#fff;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.2em;transition:border-color .25s,color .25s}
.site-nav-close:hover{border-color:var(--c-accent);color:var(--c-accent)}
.site-nav-list{display:flex;flex-direction:column;flex:1;padding:72px var(--gutter) 24px}
.site-nav-item{position:relative}
.site-nav-link{display:flex;align-items:baseline;gap:14px;padding:14px 8px;border-bottom:1px solid rgba(255,255,255,.12);color:#C6D3DE;transition:color .25s,background .25s,padding-left .25s}
.site-nav-index{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;color:var(--c-secondary);transition:color .25s}
.site-nav-label{font-family:var(--font-display);font-size:1.32rem;font-weight:700;letter-spacing:.04em;line-height:1.2}
.site-nav-link:hover{color:#fff;padding-left:14px}
.site-nav-link:hover .site-nav-index{color:var(--c-accent)}
.site-nav-link[aria-current="page"]{color:var(--c-accent);background:linear-gradient(90deg,rgba(255,107,53,.14),transparent 85%)}
.site-nav-link[aria-current="page"] .site-nav-index{color:var(--c-accent)}
.nav-foot-line{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.6rem;letter-spacing:.24em;color:rgba(255,255,255,.38);text-transform:uppercase}
.nav-foot-dot{width:6px;height:6px;flex:none;background:var(--c-secondary);display:inline-block}
.site-nav-foot{display:flex;flex-direction:column;gap:8px;padding:20px var(--gutter) 30px;border-top:1px solid rgba(255,255,255,.1)}
@media (min-width:1180px){
  .site-nav{inset:0 auto 0 0;width:var(--rail-w);padding-top:0;transform:none;visibility:visible;transition:none;overflow:visible;border-right:1px solid rgba(255,255,255,.08)}
  .site-nav-close{display:none}
  .site-nav-list{padding:44px 0 24px;gap:0}
  .site-nav-link{flex-direction:column;align-items:flex-start;gap:3px;padding:14px 4px 12px 14px;border-bottom:1px solid rgba(255,255,255,.08)}
  .site-nav-link::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-secondary);transform:scaleY(0);transform-origin:top;transition:transform .3s var(--ease-out)}
  .site-nav-link:hover::after,.site-nav-link[aria-current="page"]::after{transform:scaleY(1)}
  .site-nav-link:hover{padding-left:14px;background:rgba(255,107,53,.07)}
  .site-nav-link[aria-current="page"]{background:rgba(198,255,0,.07)}
  .site-nav-link[aria-current="page"]::after{background:var(--c-accent)}
  .site-nav-label{font-size:.92rem}
  .site-nav-index{font-size:.58rem}
  .site-nav-foot{align-items:flex-start;padding:14px 0 0 14px;border-top:0;gap:10px}
}
.back-top{position:fixed;right:16px;bottom:16px;z-index:1500;display:grid;place-items:center;width:54px;height:54px;background:var(--c-primary);color:var(--c-bg);border:1px solid rgba(255,255,255,.24);opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .3s,transform .3s var(--ease-out),visibility .3s,background .25s}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--c-secondary);color:var(--c-primary)}
.back-top-i{font-family:var(--font-mono);font-size:1rem;line-height:1;display:block}
.back-top-t{font-family:var(--font-mono);font-size:.56rem;letter-spacing:.22em;display:block;margin-top:2px}
@media (min-width:1180px){.back-top{right:26px;bottom:26px}}
.btn{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:10px 26px;overflow:hidden;font-family:var(--font-display);font-size:.9rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;transition:color .3s}
.btn::before{content:"";position:absolute;z-index:-1;inset:0;background:var(--c-accent);transform:skewX(-14deg) translateX(-110%);transition:transform .4s var(--ease-out)}
.btn:hover::before{transform:skewX(-14deg) translateX(0)}
.btn-primary{background:var(--c-secondary);color:var(--c-primary)}
.btn-ghost{border:1px solid var(--c-primary);background:transparent;color:var(--c-primary)}
.btn-primary:hover{color:var(--c-primary)}
.breadcrumb{padding:22px 0 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;gap:8px 10px;font-family:var(--font-mono);font-size:.76rem;letter-spacing:.05em;color:var(--c-muted)}
.breadcrumb-item{display:inline-flex;align-items:center;gap:10px}
.breadcrumb-item + .breadcrumb-item::before{content:"/";color:var(--c-secondary)}
.breadcrumb-link{transition:color .2s}
.breadcrumb-link:hover{color:var(--c-secondary)}
.breadcrumb-item[aria-current="page"]{color:var(--c-primary);font-weight:700}
.container{width:100%;max-width:var(--content-max);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(44px,9vw,116px);position:relative}
.section-head{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:clamp(30px,5vw,56px)}
.section-index{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.24em;color:var(--c-secondary);text-transform:uppercase}
.section-title{font-size:clamp(1.9rem,4.8vw,3.5rem);line-height:1.05}
.section-note{max-width:480px;color:var(--c-muted);font-size:.94rem}
@media (min-width:900px){
  .section-head{grid-template-columns:1fr 2.2fr;align-items:end;column-gap:32px}
  .section-note{grid-column:2}
}
.split{display:grid;grid-template-columns:1fr;gap:20px}
.split-aside{font-family:var(--font-mono);font-size:.8rem;letter-spacing:.03em;line-height:1.8;color:var(--c-muted)}
@media (min-width:1024px){
  .split{grid-template-columns:minmax(200px,260px) 1fr;gap:clamp(36px,6vw,84px)}
  .split-aside{position:sticky;top:calc(var(--bar-h) + 28px);align-self:start}
}
.media{position:relative;background:var(--c-deep);overflow:hidden}
.media::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(115deg,transparent 42%,rgba(255,107,53,.18) 42.5%,rgba(255,107,53,.18) 45%,transparent 45.5%),linear-gradient(115deg,transparent 55%,rgba(11,27,43,.14) 55.5%,rgba(11,27,43,.14) 58%,transparent 58.5%)}
.media::after{display:none;content:attr(data-caption);position:absolute;left:0;bottom:0;z-index:2;padding:4px 10px;background:var(--c-primary);color:var(--c-accent);font-family:var(--font-mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase}
.media[data-caption]::after{display:block}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--square{aspect-ratio:1/1}
.media--hero{aspect-ratio:4/5}
@media (min-width:900px){.media--hero{aspect-ratio:3/4}}
.slant{display:block;height:clamp(60px,9vw,110px);background:var(--c-dark-surface);clip-path:polygon(0 0,100% 28%,100% 100%,0 74%)}
.slant--orange{background:var(--c-secondary)}
.slant--accent{background:var(--c-accent)}
html.js [data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
html.js [data-reveal="left"]{transform:translateX(-28px)}
html.js [data-reveal="right"]{transform:translateX(28px)}
html.js [data-reveal].is-revealed{opacity:1;transform:none}
.site-footer{position:relative;background:var(--c-primary);color:#9FB0C0;overflow:hidden}
.footer-band{background:var(--c-secondary);clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),0 100%);transform:skewY(-1.4deg);transform-origin:center;padding:14px 0 22px;margin-bottom:-2px}
.footer-band-track{display:flex;gap:38px;min-width:max-content;padding-left:var(--gutter);transform:skewX(-9deg)}
.footer-band-text{font-family:var(--font-display);font-size:.88rem;font-weight:700;letter-spacing:.14em;color:var(--c-primary);text-transform:uppercase;white-space:nowrap}
.footer-grid{display:grid;grid-template-columns:1fr;gap:clamp(24px,4vw,44px);max-width:var(--content-max);margin:0 auto;padding:clamp(40px,6vw,72px) var(--gutter) 0}
.footer-identity{grid-column:1/-1}
.footer-col{grid-column:1/-1}
.footer-contact{grid-column:1/-1}
.footer-logo{font-family:var(--font-display);font-size:clamp(2.2rem,5vw,3.8rem);font-weight:900;line-height:1;letter-spacing:.02em;color:#fff}
.footer-logo-slash{color:var(--c-secondary)}
.footer-tagline{margin-top:10px;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.3em;color:var(--c-accent);text-transform:uppercase}
.footer-statement{max-width:340px;margin-top:18px;font-size:.94rem;line-height:1.85;color:#9FB0C0}
.footer-court{width:100%;max-width:340px;margin-top:26px}
.footer-court .stroke{fill:none;stroke:#3D5871;stroke-width:1.4}
.footer-court .zone{fill:rgba(255,107,53,.16)}
.footer-court .slash{fill:none;stroke:var(--c-secondary);stroke-width:2}
.footer-title{display:flex;align-items:center;gap:8px;margin-bottom:16px;font-family:var(--font-mono);font-size:.72rem;font-weight:400;letter-spacing:.22em;color:var(--c-secondary);text-transform:uppercase}
.footer-title::before{content:"//";color:var(--c-accent)}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{color:#C6D3DE;font-size:.94rem;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:var(--c-accent);padding-left:6px}
.footer-contact-line{margin-bottom:14px;font-size:.9rem;color:#C6D3DE;line-height:1.5}
.footer-contact-label{display:block;margin-bottom:2px;font-family:var(--font-mono);font-size:.62rem;letter-spacing:.2em;color:var(--c-secondary);text-transform:uppercase}
.footer-bottom{display:flex;flex-direction:column;gap:12px;align-items:center;justify-content:space-between;max-width:var(--content-max);margin:0 auto;padding:18px var(--gutter) 22px;margin-top:clamp(36px,5vw,60px);border-top:1px solid rgba(255,255,255,.1);font-family:var(--font-mono);font-size:.68rem;letter-spacing:.04em;color:#7E93A5}
.footer-legal{display:flex;flex-wrap:wrap;gap:16px}
.footer-legal a{color:#9FB0C0;transition:color .2s}
.footer-legal a:hover{color:var(--c-accent)}
@media (min-width:700px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .footer-identity,.footer-contact{grid-column:1/-1}
}
@media (min-width:1180px){
  .footer-grid{grid-template-columns:repeat(12,1fr);column-gap:40px}
  .footer-identity{grid-column:span 4}
  .footer-col{grid-column:span 2}
  .footer-contact{grid-column:span 2}
  .footer-bottom{flex-direction:row}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}