:root{--bg:#080A0D;--nav:#0D1015;--surface:#171C23;--panel:#12161C;--hover:#1B2129;--text:#C7CDD5;--muted:#A5ADB8;--title:#F5F7FA;--blue:#6EA8FF;--brand:#5C7CFA;--line:rgba(255,255,255,.09)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 system-ui,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:#8ED8FF}button{font:inherit}img{max-width:100%}.shell{max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px}.skip-link{position:absolute;left:-9999px;top:4px;z-index:15000;background:#fff;color:#000;padding:8px}.skip-link:focus{left:10px}.site-header{position:sticky;top:0;z-index:500;background:var(--nav);border-bottom:1px solid var(--line)}.header-inner{height:68px;max-width:1180px;margin:auto;padding:0 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@media(max-width:350px){.topic-grid{grid-template-columns:1fr}.site-logo{font-size:20px}.header-inner{gap:4px}.entry-btn{min-width:76px}.site-logo img{max-width:112px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer{transition:none}}

/* Edition two: editorial hierarchy / alternating showcase */
.article-picture{max-width:760px;margin:0 0 24px}.article-picture .media-natural img{max-height:460px}.article-picture .media-device{margin:0 auto}.article-hero{border-bottom:1px solid rgba(255,255,255,.09);margin-bottom:20px}.hero-grid{grid-template-columns:1.1fr .9fr}.image-card{transition:transform .2s,background .2s}.image-card:hover{transform:translateY(-3px);background:#1B2129}.prose .image-grid{margin:10px 0 25px}.site-footer .footer-grid>div{min-width:0}@media(max-width:620px){.hero-grid{display:flex;flex-direction:column}.image-card:hover{transform:none}.article-picture{max-width:100%}}

/* Simulator edition: editorial mosaic and compact archive */
.hero-grid{grid-template-columns:1.13fr .87fr}.article-picture{max-width:740px;margin-bottom:22px}.article-picture .media-natural img{max-height:460px}.image-card{transition:transform .2s ease,background .2s ease}.image-card:hover{transform:translateY(-2px);background:#1B2129}.section .info-list{max-width:980px}.section .image-grid.three{gap:18px}.banner-wrap img{width:100%;height:auto;object-fit:contain}@media(max-width:620px){.hero-grid{display:flex;flex-direction:column}.image-card:hover{transform:none}}

/* B SPORTS color system; white, coral and warm gold */
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