/* 长篇详情页：统一质感与首屏渲染优化 */
:root{--detail-accent:#68a9ff;--detail-glow:rgba(104,169,255,.10)}
body{background-image:radial-gradient(circle at 18% -8%,var(--detail-glow),transparent 28rem)}
.topbar{box-shadow:0 12px 42px rgba(0,0,0,.16)}
.topbar::after{content:"";position:absolute;inset:auto 0 -1px;height:1px;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--detail-accent) 34%,transparent),transparent)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--detail-accent);outline-offset:3px}
@supports(content-visibility:auto){
  main>section:not(:has(canvas)),.report-section:not(:has(canvas)),article>section:not(:has(canvas)){content-visibility:auto;contain-intrinsic-size:auto 720px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}