body.site{--ink:#122033;--muted:#5c6b80;--line:rgba(18,32,51,0.12);--surface:#ffffff;--surface-2:#f3f7fb;--accent:#1f6feb;--accent-2:#0f9d8a;--shadow:0 14px 36px rgba(18,32,51,0.08);--font-serif:var(--font-serif);margin:0;color:var(--ink);background:radial-gradient(circle at top left,rgba(31,111,235,.08),transparent 34%),linear-gradient(180deg,#f7fbff,#eef4fa);font-family:var(--font-serif),Georgia,serif}body.site a{color:inherit;text-decoration:none}body.site img{max-width:100%;display:block}body.site .chrome{min-height:100vh}body.site .site-head{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:rgba(247,251,255,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}body.site .site-head-inner{display:flex;align-items:center;gap:10px;padding:12px 14px}body.site .brand{min-width:0;flex:1 1;font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}body.site .brand-home{font-size:16px;line-height:1.2}body.site .menu{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;width:42px;height:42px;font:inherit;box-shadow:var(--shadow)}body.site .menu:before{content:"≡";font-size:18px;line-height:1}body.site.nav-open .menu:before{content:"×";font-size:22px}body.site .nav-wrap{display:none;border-top:1px solid var(--line);background:rgba(255,255,255,.96)}body.site.nav-open .nav-wrap{display:block}body.site .nav-list{list-style:none;margin:0;padding:6px 10px 14px;display:grid;grid-gap:4px;gap:4px}body.site .nav-list>li{position:relative;border:1px solid transparent;border-radius:14px}body.site .nav-list>li>a,body.site .nav-list>li>button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:8px;padding:12px;border:0;background:transparent;color:var(--ink);font:inherit;text-align:left}body.site .nav-list>li.has-children>a:after,body.site .nav-list>li.has-children>button:after{content:"▾";font-size:12px;color:var(--muted)}body.site .nav-list ul{list-style:none;margin:0;padding:0 0 8px 10px;display:none}body.site .nav-list li.tap>ul{display:block}body.site .nav-list .tap>a,body.site .nav-list .tap>button{color:var(--accent)}body.site .nav-list ul a{display:block;padding:8px 12px;color:var(--muted);border-left:2px solid rgba(31,111,235,.18)}body.site .site-main{padding:16px 14px 34px}body.site .crumbs{margin:0 0 10px}body.site .crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0;color:var(--muted);font-size:13px}body.site .crumbs li{display:inline-flex;align-items:center;gap:6px}body.site .crumbs li+li:before{content:">";color:rgba(92,107,128,.65)}body.site .crumbs a{color:var(--muted)}body.site h1{margin:0;font-size:16px;line-height:1.25;letter-spacing:.01em}body.site h2{margin:0;font-size:15px;line-height:1.35}body.site .home-grid{display:grid;grid-gap:14px;gap:14px}body.site .article-card,body.site .body-card,body.site .hero-card,body.site .hot-box,body.site .list-card,body.site .panel,body.site .story-card,body.site .tag-cloud{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}body.site .hero-card{overflow:hidden}body.site .hero-copy{padding:16px}body.site .hero-copy p{margin:10px 0 0;color:var(--muted);line-height:1.7;font-size:14px}body.site .media-frame{aspect-ratio:16/10;position:relative;background:#dfe8f1}body.site .media-frame img{object-fit:cover}body.site .article-list,body.site .feature-grid,body.site .hot-list,body.site .story-list,body.site .tag-cloud ul{list-style:none;margin:0;padding:0}body.site .feature-grid{display:grid;grid-gap:12px;gap:12px}body.site .article-list li,body.site .feature-grid li,body.site .hot-list li,body.site .story-list li{border-top:1px solid var(--line);padding-top:12px}body.site .article-list li:first-child,body.site .feature-grid li:first-child,body.site .hot-list li:first-child,body.site .story-list li:first-child{border-top:0;padding-top:0}body.site .tag-cloud ul{display:flex;flex-wrap:wrap;gap:10px}body.site .tag-cloud a{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:999px;background:var(--surface-2);color:var(--ink)}body.site .section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}body.site .section-head a{color:var(--accent);font-size:13px}body.site .article-card,body.site .list-card,body.site .story-card{overflow:hidden}body.site .card-body{padding:14px}body.site .card-body p{margin:8px 0 0;color:var(--muted);line-height:1.65;font-size:14px}body.site .article-card .card-title,body.site .list-card .card-title,body.site .story-card .card-title{font-size:15px;line-height:1.45}body.site .article-desc,body.site .cat-desc{margin-top:10px;color:var(--muted);font-size:14px;line-height:1.75;font-weight:400}body.site .in-article-toc{margin:16px 0;padding:14px;border-radius:16px;background:rgba(243,247,251,.95);border:1px solid var(--line)}body.site .in-article-toc ol{margin:0;padding-left:18px;display:grid;grid-gap:8px;gap:8px}body.site .in-article-toc a{color:var(--accent)}body.site .copy{margin-top:16px;line-height:1.9;font-size:15px}body.site .copy h2{margin:22px 0 10px;font-size:16px}body.site .copy blockquote,body.site .copy ol,body.site .copy p,body.site .copy ul{margin:0 0 14px}body.site .pager{display:flex;justify-content:center;margin-top:18px}body.site .pager .pager-nav,body.site .pager nav{width:100%}body.site .friend-links{margin-top:18px;padding:14px;border-top:1px solid var(--line);background:rgba(255,255,255,.6)}body.site .friend-links ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}body.site .friend-links a{color:var(--muted)}body.site .site-foot{padding:18px 14px 30px;color:var(--muted);font-size:12px;line-height:1.7}body.site .site-foot a{color:inherit}body.site .body-card{padding:16px}@media (min-width:769px){body.site .site-foot,body.site .site-head-inner,body.site .site-main{width:min(1180px,calc(100vw - 48px));margin:0 auto}body.site .site-head-inner{padding-left:0;padding-right:0}body.site .site-main{padding-top:22px;padding-bottom:52px}body.site .site-head-inner{align-items:flex-start}body.site .menu{display:none}body.site .nav-wrap{display:block;border-top:0;background:transparent;margin:0 auto;width:min(1180px,calc(100vw - 48px))}body.site .nav-list{padding:0 0 14px;display:flex;flex-wrap:wrap;gap:10px}body.site .nav-list>li{border:1px solid var(--line);background:rgba(255,255,255,.72)}body.site .nav-list ul{position:absolute;left:0;top:calc(100% + 6px);min-width:220px;padding:8px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;display:none;z-index:30}body.site .nav-list>li:hover>ul{display:block}body.site .home-grid{grid-template-columns:1.2fr .8fr;align-items:start}body.site .hero-card{grid-column:1/-1}body.site .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}body.site .two-col{display:grid;grid-template-columns:1.1fr .9fr;grid-gap:14px;gap:14px}body.site .list-stack{display:grid;grid-gap:14px;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr))}}