:root{--site-bg:#f4f6f8;--site-surface:#ffffff;--site-surface-soft:#eef2f6;--site-text:#16212b;--site-muted:#5d6b79;--site-line:#d8e0e8;--site-accent:#0f5f8d;--site-accent-2:#dbeaf4;--site-shadow:0 14px 36px rgba(12,28,44,0.08);--site-radius:18px}body.site{margin:0;background:linear-gradient(180deg,#f8fafc,#eef3f7);color:var(--site-text);font-family:var(--font-serif),Georgia,serif}body.site a{color:inherit;text-decoration:none}body.site img{max-width:100%;height:auto}body.site .article,body.site .chrome,body.site .error,body.site .home,body.site .list,body.site .not-found{width:min(100%,1180px);margin:0 auto}body.site .chrome{padding:14px 14px 28px}body.site .site-head{display:grid;grid-template-columns:1fr auto;grid-gap:10px 12px;gap:10px 12px;align-items:center;padding:14px 14px 10px;background:rgba(255,255,255,.82);border:1px solid var(--site-line);border-radius:22px;box-shadow:var(--site-shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}body.site .brand{display:inline-flex;align-items:center;min-width:0;font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--site-text)}body.site .brand h1{margin:0;font-size:16px;line-height:1.2}body.site .menu{border:1px solid var(--site-line);background:var(--site-surface);color:var(--site-text);border-radius:999px;padding:9px 12px;line-height:1;font:inherit;box-shadow:0 8px 18px rgba(12,28,44,.06)}body.site .nav{grid-column:1/-1}body.site .nav-list{margin:0;padding:0;list-style:none}body.site .nav-list>li{position:relative;border-top:1px solid var(--site-line)}body.site .nav-list>li>a,body.site .nav-list>li>span{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 2px;font-size:14px;font-weight:600}body.site .nav-list>li>a:after,body.site .nav-list>li>span:after{content:"";width:8px;height:8px;border-right:1.5px solid;border-bottom:1.5px solid;transform:rotate(-45deg);opacity:.35}body.site .nav-list>li>a.no-caret:after,body.site .nav-list>li>span.no-caret:after{display:none}body.site .nav-list ul{display:none;margin:0 0 10px;padding:0;list-style:none;background:var(--site-surface);border:1px solid var(--site-line);border-radius:14px;overflow:hidden}body.site .nav-list li.tap>ul{display:block}body.site .nav-list ul a{display:block;padding:10px 12px;font-size:13px;color:var(--site-muted)}body.site .nav-list ul a:focus-visible,body.site .nav-list ul a:hover{color:var(--site-text);background:var(--site-accent-2)}body.site .hero{margin-top:14px;display:grid;grid-gap:14px;gap:14px}body.site .article-card,body.site .copy,body.site .crumb-box,body.site .hero-card,body.site .list-card,body.site .panel,body.site .section-card,body.site .toc-box{background:var(--site-surface);border:1px solid var(--site-line);border-radius:var(--site-radius);box-shadow:var(--site-shadow)}body.site .hero-card{overflow:hidden}body.site .hero-copy{padding:18px 16px 16px}body.site .article h1,body.site .error h1,body.site .hero-copy h1,body.site .list h1,body.site .not-found h1{margin:0;font-size:16px;line-height:1.3}body.site .article-desc,body.site .cat-desc,body.site .copy,body.site .crumb-box,body.site .hero-copy p,body.site .hot-list a,body.site .list-meta,body.site .section-title,body.site .tag-list a,body.site .toc-box{color:var(--site-muted)}body.site .hero-media{position:relative;aspect-ratio:16/10}body.site .hero-media img{object-fit:cover}body.site .hero-grid{display:grid;grid-gap:14px;gap:14px}body.site .article-card,body.site .list-card,body.site .panel,body.site .section-card{overflow:hidden}body.site .panel h2,body.site .section-card h2{margin:0;font-size:14px;color:var(--site-text)}body.site .section-head{padding:16px 16px 0}body.site .section-body{padding:12px 16px 16px}body.site .block-grid{display:grid;grid-gap:12px;gap:12px}body.site .block{background:linear-gradient(180deg,#ffffff,#f7fafc);border:1px solid var(--site-line);border-radius:16px;overflow:hidden}body.site .block-media{position:relative;aspect-ratio:4/3}body.site .block-body{padding:12px 12px 14px}body.site .block-body h3{margin:0 0 6px;font-size:14px}body.site .block-body .block-text{font-size:13px;line-height:1.65}body.site .split{display:grid;grid-gap:14px;gap:14px}body.site .crumb-box ol,body.site .hot-list,body.site .link-list,body.site .tag-list,body.site .toc-box ol{margin:0;padding:0;list-style:none}body.site .hot-list li,body.site .link-list li,body.site .tag-list li{border-top:1px solid var(--site-line)}body.site .hot-list li:first-child,body.site .link-list li:first-child,body.site .tag-list li:first-child{border-top:0}body.site .hot-list a,body.site .link-list a,body.site .tag-list a{display:block;padding:12px 16px;font-size:14px}body.site .crumb-box{padding:10px 14px;margin-bottom:14px}body.site .crumb-box ol{display:flex;flex-wrap:wrap;gap:6px;align-items:center}body.site .crumb-box li{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--site-muted)}body.site .crumb-box li+li:before{content:">";color:#8ca0b2}body.site .crumb-box a{color:var(--site-text)}body.site .article-main,body.site .list-main{display:grid;grid-gap:14px;gap:14px}body.site .article-item,body.site .list-articles{display:grid;grid-gap:12px;gap:12px}body.site .article-item{padding:12px}body.site .article-thumb{position:relative;aspect-ratio:16/10;border-radius:14px;overflow:hidden;background:#e9eef3}body.site .article-thumb img{object-fit:cover}body.site .article-item h3,body.site .article-title{margin:0;font-size:15px;line-height:1.35}body.site .article-item p{margin:0;font-size:13px;line-height:1.65;color:var(--site-muted)}body.site .article-desc,body.site .cat-desc{margin:10px 0 0;font-size:14px;line-height:1.7}body.site .toc-box{padding:14px 14px 6px}body.site .toc-box h2{margin:0 0 10px;font-size:14px}body.site .toc-box li{margin:0 0 8px}body.site .toc-box a{font-size:13px;color:var(--site-text)}body.site .copy{padding:16px;line-height:1.9;font-size:15px}body.site .copy h2{margin:22px 0 10px;font-size:15px;line-height:1.35}body.site .copy p{margin:0 0 14px}body.site .friend-section{margin-top:16px;padding:16px}body.site #friend-links{margin-top:16px}body.site .pager{display:flex;justify-content:center;gap:10px;margin-top:16px}body.site .pager a,body.site .pager span{min-width:42px;padding:10px 12px;text-align:center;border-radius:999px;border:1px solid var(--site-line);background:var(--site-surface);font-size:13px}body.site .page-shell{padding:16px 14px 28px}body.site .error,body.site .not-found{padding:54px 16px;text-align:center}body.site .retry{margin-top:14px;border:1px solid var(--site-line);background:var(--site-surface);color:var(--site-text);border-radius:999px;padding:10px 16px;font:inherit}@media (min-width:769px){body.site .chrome{padding:18px 18px 34px}body.site .site-head{grid-template-columns:auto 1fr auto;padding:18px 20px}body.site .menu{display:none}body.site .nav{grid-column:auto}body.site .nav-list{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:14px;align-items:center}body.site .nav-list>li{border-top:0}body.site .nav-list>li>a,body.site .nav-list>li>span{padding:10px 0}body.site .nav-list ul{position:absolute;top:calc(100% + 8px);left:0;min-width:220px;z-index:20;box-shadow:var(--site-shadow)}body.site .nav-list li:hover>ul{display:block}body.site .hero{grid-template-columns:1.25fr .95fr;align-items:start}body.site .hero-card{display:grid;grid-template-columns:1.2fr .8fr;min-height:360px}body.site .hero-copy{padding:28px 28px 28px 30px;align-self:end}body.site .article h1,body.site .error h1,body.site .hero-copy h1,body.site .list h1,body.site .not-found h1{font-size:16px}body.site .hero-grid{grid-template-columns:repeat(2,minmax(0,1fr))}body.site .block-grid{grid-template-columns:repeat(3,minmax(0,1fr))}body.site .split{grid-template-columns:1fr 1fr}body.site .list-articles{grid-template-columns:repeat(2,minmax(0,1fr))}body.site .article-item{grid-template-columns:180px 1fr;align-items:center}body.site .article-thumb{aspect-ratio:4/3}body.site .article-main{grid-template-columns:minmax(0,1fr) 300px;align-items:start}body.site .toc-box{position:-webkit-sticky;position:sticky;top:18px}}