body.site{--font-serif:var(--font-serif);margin:0;background:#f4f7fb;color:#142033;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.65}body.site *,body.site :after,body.site :before{box-sizing:border-box}body.site a{color:inherit;text-decoration:none}body.site img{display:block;max-width:100%}body.site .site-shell{width:100%}body.site .site-top{position:-webkit-sticky;position:sticky;top:0;z-index:30;background:rgba(244,247,251,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(20,32,51,.08)}body.site .site-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px}body.site .brand{display:inline-flex;align-items:center;gap:10px;min-width:0;font-weight:700;letter-spacing:.02em}body.site .brand-mark{width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,#0f6bdc,#0f9bb8);box-shadow:0 0 0 6px rgba(15,107,220,.08);flex:none}body.site .brand-text{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}body.site .menu{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(20,32,51,.12);background:#ffffff;color:#142033;border-radius:999px;padding:10px 14px;font:inherit;line-height:1;box-shadow:0 8px 20px rgba(20,32,51,.06)}body.site .nav-list{display:none;position:absolute;left:12px;right:12px;top:calc(100% + 10px);z-index:40;margin:0;padding:12px;list-style:none;background:#ffffff;border:1px solid rgba(20,32,51,.12);border-radius:18px;box-shadow:0 18px 40px rgba(20,32,51,.12)}body.site.nav-open .nav-list{display:grid;grid-gap:8px;gap:8px}body.site .nav-list>li{position:relative}body.site .nav-list>li>a,body.site .nav-list>li>span{display:block;padding:11px 12px;border-radius:12px;background:#f7f9fc;font-size:14px}body.site .nav-list>li.tap>.nav-sub,body.site .nav-list>li:hover>.nav-sub{display:grid}body.site .nav-sub{display:none;list-style:none;margin:8px 0 0;padding:8px;gap:6px;background:#ffffff;border:1px solid rgba(20,32,51,.12);border-radius:14px}body.site .nav-sub a{display:block;padding:9px 10px;border-radius:10px;background:#f4f7fb;font-size:13px}body.site .page-body{padding:16px}body.site .crumbs{margin:0 0 14px}body.site .crumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0;font-size:13px;color:rgba(20,32,51,.7)}body.site .crumbs li+li:before{content:">";margin-right:6px;color:rgba(20,32,51,.35)}body.site .hero-grid{display:grid;grid-gap:14px;gap:14px}body.site .article-card,body.site .block-card,body.site .hero-card,body.site .hot-card,body.site .list-card,body.site .panel,body.site .tag-card{background:#ffffff;border:1px solid rgba(20,32,51,.08);border-radius:22px;box-shadow:0 14px 34px rgba(20,32,51,.06)}body.site .hero-card{overflow:hidden}body.site .hero-copy{padding:18px 16px 16px}body.site h1{margin:0;line-height:1.35}body.site .hero-copy h1,body.site h1{font-size:16px}body.site .hero-copy p{margin:10px 0 0;color:rgba(20,32,51,.74);font-size:14px}body.site .hero-media{position:relative;aspect-ratio:16/10;background:#dce7f2}body.site .hero-media img{object-fit:cover}body.site .section-title{margin:22px 0 12px;font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:rgba(20,32,51,.56)}body.site .home-mosaic{display:grid;grid-gap:14px;gap:14px}body.site .block-card{overflow:hidden}body.site .block-card .block-media{position:relative;aspect-ratio:4/3;background:#dce7f2}body.site .block-card .block-media img{object-fit:cover}body.site .block-card .block-body{padding:14px 14px 16px}body.site .article-card h2,body.site .block-card h2,body.site .block-card h3,body.site .hot-card h2,body.site .list-card h2,body.site .tag-card h2{margin:0;font-size:15px;line-height:1.42}body.site .block-card .block-html{margin-top:10px;color:rgba(20,32,51,.74);font-size:14px}body.site .home-side{display:grid;grid-gap:14px;gap:14px}body.site .hot-card,body.site .panel,body.site .tag-card{padding:16px}body.site .article-list,body.site .cards,body.site .friend-list,body.site .hot-list,body.site .tag-list{display:grid;grid-gap:10px;gap:10px;list-style:none;margin:0;padding:0}body.site .article-list a,body.site .friend-list a,body.site .hot-list a,body.site .tag-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:12px 14px;border-radius:14px;background:#f6f8fc}body.site .article-list a:after,body.site .hot-list a:after,body.site .tag-list a:after{content:"↗";color:rgba(20,32,51,.4);flex:none}body.site .article-card,body.site .list-card{overflow:hidden}body.site .article-card .copy,body.site .list-card .copy{padding:16px}body.site .article-desc,body.site .cat-desc{margin:10px 0 0;font-size:14px;font-weight:400;color:rgba(20,32,51,.72)}body.site .article-meta{margin-top:8px;color:rgba(20,32,51,.56);font-size:13px}body.site .in-article-toc{margin:0 0 14px;padding:14px 16px;background:#eef4fb;border:1px solid rgba(20,32,51,.08);border-radius:18px}body.site .in-article-toc ol{margin:0;padding-left:20px;display:grid;grid-gap:8px;gap:8px}body.site .in-article-toc a{color:#0f6bdc}body.site .copy{color:#17243a;font-size:15px}body.site .copy h2{margin:1.4em 0 .55em;font-size:15px;line-height:1.45}body.site .copy blockquote,body.site .copy ol,body.site .copy p,body.site .copy table,body.site .copy ul{margin-top:.9em;margin-bottom:.9em}body.site .copy table{width:100%;border-collapse:collapse;overflow:hidden;display:block}body.site .copy td,body.site .copy th{border:1px solid rgba(20,32,51,.12);padding:10px;font-size:14px}body.site .pager{display:flex;gap:10px;justify-content:center;align-items:center;margin:18px 0 0}body.site .pager a,body.site .pager span{min-width:40px;height:40px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:#ffffff;border:1px solid rgba(20,32,51,.08);box-shadow:0 8px 20px rgba(20,32,51,.05)}body.site #friend-links{margin-top:20px;padding:16px}body.site .site-foot{padding:22px 16px 34px;color:rgba(20,32,51,.58);font-size:13px}@media (min-width:769px){body.site .page-body,body.site .site-bar,body.site .site-foot{max-width:1200px;margin-left:auto;margin-right:auto}body.site .site-bar{padding-left:0;padding-right:0}body.site .page-body{padding:24px 0 0}body.site .menu{display:none}body.site .site-top{position:relative}body.site .nav-list{display:flex;position:static;width:100%;max-width:1200px;margin:0 auto;padding:0 0 14px;border:0;box-shadow:none;background:transparent;justify-content:flex-start;gap:10px}body.site.nav-open .nav-list{display:flex}body.site .nav-list>li>a,body.site .nav-list>li>span{background:transparent;border:1px solid rgba(20,32,51,.1)}body.site .nav-sub{position:absolute;min-width:240px;top:calc(100% + 10px);left:0}body.site .hero-grid{grid-template-columns:minmax(0,1.5fr) minmax(280px,.9fr);align-items:start}body.site .home-mosaic{grid-template-columns:repeat(12,minmax(0,1fr))}body.site .home-mosaic>:first-child{grid-column:span 7}body.site .home-mosaic>:nth-child(2){grid-column:span 5}body.site .home-mosaic>:nth-child(3),body.site .home-mosaic>:nth-child(4),body.site .home-mosaic>:nth-child(5){grid-column:span 4}body.site .article-list,body.site .cards{grid-template-columns:repeat(2,minmax(0,1fr))}}