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 .page-kaifeng-articles .ctac-outline nav{max-height:min(55dvh,400px);margin-top:14px}
 .page-kaifeng-articles .ctac-outline>a{margin-top:12px;font-size:14px}
 .page-kaifeng-articles .ctac-reading-layout{gap:24px}
}
@media(max-width:720px){
 body.page-kaifeng-articles{--ctac-offset:93px}
 .page-kaifeng-articles .ctac-lead-card,.page-kaifeng-articles .ctac-card-list .ctac-article-card:nth-child(n){grid-template-columns:1fr}
 .page-kaifeng-articles .ctac-lead-card .ctac-thumb,.page-kaifeng-articles .ctac-article-card .ctac-thumb{height:auto;aspect-ratio:3/2;min-height:0}
 .page-kaifeng-articles .ctac-lead-card .ctac-thumb img,.page-kaifeng-articles .ctac-article-card .ctac-thumb img{height:100%;min-height:0}
 .page-kaifeng-articles .ctac-lead-card .ctac-card-copy,.page-kaifeng-articles .ctac-article-card .ctac-card-copy{padding:24px}
 .page-kaifeng-articles .ctac-card-copy small{gap:12px;flex-wrap:wrap;line-height:1.6}
 .page-kaifeng-articles .ctac-reading{padding-top:30px}
 .page-kaifeng-articles .ctac-outline{padding:15px}
 .page-kaifeng-articles .ctac-outline-toggle{font-size:17px}
 .page-kaifeng-articles .ctac-pager a{min-width:42px;height:44px}
}

/* Explicit article-body reset required by the unchanged formal release contract. */
body.page-kaifeng-articles{padding-top:0}

/* Preserve the public fixed-header space inside this city main. */
body.page-kaifeng-articles>main{padding-top:92px}
@media(max-width:1120px){body.page-kaifeng-articles>main{padding-top:76px}}
@media(max-width:460px){body.page-kaifeng-articles>main{padding-top:74px}}

/* Keep the complete article unit readable when both thumbnail sources fail. */
.page-kaifeng-articles [data-article-thumb][hidden]{display:none!important}
.page-kaifeng-articles .ctac-lead-card.ctac-no-thumb,
.page-kaifeng-articles .ctac-card-list .ctac-article-card.ctac-no-thumb:nth-child(n),
.page-kaifeng-articles .ctac-related-card.ctac-no-thumb{grid-template-columns:minmax(0,1fr)}
.page-kaifeng-articles .ctac-no-thumb>.ctac-card-copy{grid-column:1/-1;min-width:0}