body.site{margin:0;color:#13202f;background:radial-gradient(circle at top,rgba(82,132,199,.14),transparent 34%),linear-gradient(180deg,#f5f7fb,#eef3f8 48%,#e7edf4);font-family:var(--font-serif),Georgia,"Times New Roman",serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;--ink:#13202f;--muted:#5b6776;--line:rgba(19,32,47,0.12);--card:rgba(255,255,255,0.78);--panel:rgba(255,255,255,0.92);--accent:#1f5da8;--accent-2:#2f7bc0;--shadow:0 16px 40px rgba(19,32,47,0.08);--radius:20px}body.site a{color:inherit;text-decoration:none}body.site img{display:block;max-width:100%;height:auto}body.site .site-shell{width:100%}body.site .chrome{width:min(1120px,calc(100vw - 24px));margin:0 auto;padding:14px 0 18px}body.site .site-head{display:grid;grid-template-columns:1fr auto;align-items:center;grid-gap:12px;gap:12px;padding:10px 12px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.72);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}body.site .brand{min-width:0}body.site .brand-home,body.site .brand-link{display:inline-flex;align-items:center;gap:10px;font-size:16px;line-height:1.2;font-weight:700;letter-spacing:.02em;color:var(--ink)}body.site .brand-mark{width:12px;height:12px;border-radius:999px;background:linear-gradient(135deg,var(--accent),#8ac2ff);box-shadow:0 0 0 4px rgba(31,93,168,.12);flex:0 0 auto}body.site .brand-text{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}body.site h1{margin:0;font-size:16px;line-height:1.25}body.site .menu{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:linear-gradient(180deg,#ffffff,#eef4fb);color:var(--ink);border-radius:999px;padding:10px 14px;font:inherit;font-size:14px;line-height:1;box-shadow:0 8px 18px rgba(19,32,47,.06)}body.site .nav-list{margin:12px 0 0;padding:10px;list-style:none;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:var(--shadow);display:none}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:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 14px;border-radius:14px;background:rgba(31,93,168,.06);color:var(--ink);font-size:14px;line-height:1.3}body.site .nav-list>li.has-children>a:after,body.site .nav-list>li.has-children>span:after{content:"+";color:var(--accent);font-weight:700}body.site .nav-list ul{margin:8px 0 0;padding:6px;list-style:none;border:1px solid var(--line);border-radius:14px;background:#fff}body.site .nav-list li ul{display:none}body.site .nav-list li.tap>ul{display:grid;grid-gap:4px;gap:4px}body.site .nav-list ul a{display:block;padding:10px 12px;border-radius:10px;color:var(--muted);font-size:13px;line-height:1.3}body.site .nav-list ul a:hover,body.site .nav-list>li>a:hover,body.site .nav-list>li>span:hover{background:rgba(31,93,168,.1)}body.site .content-wrap{width:min(1120px,calc(100vw - 24px));margin:14px auto 28px}body.site .breadcrumbs{margin:0 0 12px}body.site .breadcrumbs ol{display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;list-style:none;font-size:13px;color:var(--muted)}body.site .breadcrumbs li{display:inline-flex;align-items:center;gap:6px}body.site .breadcrumbs li+li:before{content:">";color:rgba(91,103,118,.72)}body.site .breadcrumbs a{color:var(--accent)}body.site .article-card,body.site .friend-box,body.site .hero-card,body.site .home-feature,body.site .home-hot,body.site .home-panel,body.site .home-rail,body.site .home-tags,body.site .home-tile,body.site .list-card,body.site .page-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow)}body.site .home-grid{display:grid;grid-gap:14px;gap:14px}body.site .hero-card{overflow:hidden}body.site .hero-copy{padding:18px 16px 16px}body.site .hero-copy h1{margin-bottom:10px;font-size:16px}body.site .hero-copy .hero-text{color:var(--muted);font-size:14px;line-height:1.8}body.site .hero-media{position:relative;aspect-ratio:16/11;overflow:hidden}body.site .hero-media img,body.site .media-frame img{object-fit:cover}body.site .home-grid-inner{display:grid;grid-gap:14px;gap:14px}body.site .home-panel{overflow:hidden;padding:14px}body.site .home-panel h2{margin:0 0 12px;font-size:15px;line-height:1.35}body.site .home-cards{display:grid;grid-gap:12px;gap:12px}body.site .home-card{padding:14px;border-radius:16px;background:rgba(255,255,255,.82);border:1px solid rgba(19,32,47,.08)}body.site .home-card h3,body.site .home-card h4{margin:0;font-size:15px;line-height:1.4}body.site .home-card p{margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.7}body.site .friend-box ul,body.site .home-hot-list,body.site .home-list,body.site .home-tags-list{display:grid;grid-gap:8px;gap:8px;margin:0;padding:0;list-style:none}body.site .article-list a,body.site .friend-box a,body.site .home-hot-list a,body.site .home-list a,body.site .home-tags-list a{display:block;padding:12px 13px;border-radius:14px;background:rgba(31,93,168,.06);color:var(--ink)}body.site .home-tags-list a{background:rgba(47,123,192,.1)}body.site .home-figure{display:grid;grid-gap:10px;gap:10px}body.site .media-frame{position:relative;overflow:hidden;border-radius:18px;aspect-ratio:4/3}body.site .article-head,body.site .list-head{padding:16px 14px 14px}body.site .article-head h1,body.site .list-head h1{font-size:16px;line-height:1.35}body.site .article-desc,body.site .cat-desc{margin:10px 0 0;color:var(--muted);font-size:14px;line-height:1.8;font-weight:400}body.site .list-grid{padding:0 14px 14px;display:grid;grid-gap:12px;gap:12px}body.site .list-item{overflow:hidden;border-radius:18px;background:rgba(255,255,255,.8);border:1px solid rgba(19,32,47,.08)}body.site .list-item-body{padding:12px 13px 14px}body.site .list-item h2{margin:0;font-size:15px;line-height:1.45}body.site .list-item .meta{margin-top:8px;color:var(--muted);font-size:13px;line-height:1.7}body.site .article-card{overflow:hidden}body.site .article-cover{position:relative;aspect-ratio:16/10;overflow:hidden}body.site .article-head-inner{padding:16px 14px 0}body.site .article-kicker{margin:0 0 8px;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}body.site .article-body{padding:14px}body.site .in-article-toc{margin:0 0 14px;padding:14px;border:1px solid rgba(19,32,47,.08);border-radius:18px;background:rgba(255,255,255,.72)}body.site .in-article-toc ol{margin:0;padding-left:18px;display:grid;grid-gap:8px;gap:8px;color:var(--muted)}body.site .in-article-toc a{color:var(--accent);line-height:1.5}body.site .copy{color:#203043;font-size:15px;line-height:1.9}body.site .copy h2{margin:24px 0 10px;font-size:16px;line-height:1.45}body.site .copy blockquote,body.site .copy ol,body.site .copy p,body.site .copy ul{margin:0 0 14px}body.site .copy img{margin:18px 0;border-radius:16px}body.site .friend-box{margin-top:14px;padding:14px}body.site .friend-box ul{grid-template-columns:1fr}body.site .friend-box li{min-width:0}body.site .pager{margin-top:16px;padding:0 14px 14px}body.site .pager nav{display:flex;gap:10px;flex-wrap:wrap}body.site .pager a,body.site .pager span{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.8);color:var(--ink)}body.site .site-foot{width:min(1120px,calc(100vw - 24px));margin:0 auto 20px;padding:12px 2px 0;color:var(--muted);font-size:12px;line-height:1.8}body.site .site-foot .icp{display:inline-block;margin-top:4px}@media (min-width:769px){body.site .chrome{padding-top:18px}body.site .site-head{grid-template-columns:auto auto 1fr}body.site .menu{display:none}body.site .nav-list{display:flex;justify-content:flex-end;align-items:center;gap:8px;margin:0;padding:0;border:0;box-shadow:none;background:transparent}body.site.nav-open .nav-list{display:flex}body.site .nav-list>li{position:relative}body.site .nav-list>li>a,body.site .nav-list>li>span{background:transparent;padding:10px 12px;border-radius:999px}body.site .nav-list li ul{position:absolute;top:calc(100% + 8px);left:0;min-width:200px;display:none;z-index:20;box-shadow:var(--shadow)}body.site .nav-list>li:hover>ul{display:grid}body.site .home-grid{grid-template-columns:1.25fr .9fr;align-items:start}body.site .home-grid-inner{grid-template-columns:1fr 1fr}body.site .home-panel:first-child{grid-column:1/-1}body.site .friend-box ul,body.site .list-grid{grid-template-columns:repeat(2,minmax(0,1fr))}body.site .article-body{display:grid;grid-template-columns:260px minmax(0,1fr);grid-gap:18px;gap:18px;align-items:start}body.site .in-article-toc{position:-webkit-sticky;position:sticky;top:16px}}