body.site{margin:0;color:#1c2330;background:radial-gradient(circle at top,rgba(79,123,190,.16),transparent 34%),linear-gradient(180deg,#f6f8fc,#eef3f8);font-family:var(--font-serif),Georgia,serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body.site a{color:inherit;text-decoration:none}body.site img{display:block;max-width:100%;height:auto}body.site .shell{width:min(1120px,calc(100vw - 24px));margin:0 auto}body.site .chrome{position:relative;z-index:2}body.site .topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:rgba(246,248,252,.92);border-bottom:1px solid rgba(28,35,48,.08)}body.site .topbar-inner{width:min(1120px,calc(100vw - 24px));margin:0 auto;display:flex;align-items:center;gap:12px;min-height:56px}body.site .brand{min-width:0;flex:1 1;display:flex;align-items:center}body.site .brand a,body.site .brand h1{display:inline-flex;align-items:center;min-width:0;font-size:16px;line-height:1.15;font-weight:700;letter-spacing:.02em;color:#0f1724}body.site .brand h1{margin:0}body.site .menu{border:1px solid rgba(28,35,48,.14);background:#ffffff;color:#0f1724;border-radius:999px;padding:0 14px;height:36px;font:inherit;font-size:14px;box-shadow:0 6px 18px rgba(23,35,58,.08)}body.site.nav-open{overflow:hidden}body.site .nav-list{display:none;width:100%;box-sizing:border-box;padding:10px 12px 14px;margin:0;list-style:none;border-top:1px solid rgba(28,35,48,.08)}body.site.nav-open .nav-list{display:block}body.site .nav-item{position:relative;margin:0}body.site .nav-link{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:42px;padding:10px 12px;border-radius:14px;font-size:14px;line-height:1.25;color:#172033;background:rgba(255,255,255,.74);border:1px solid rgba(28,35,48,.08)}body.site .nav-item.tap>.nav-link,body.site .nav-link:hover{background:#ffffff}body.site .nav-caret{flex:none;width:8px;height:8px;border-right:1.8px solid;border-bottom:1.8px solid;transform:rotate(45deg);margin-top:-2px}body.site .nav-children{display:none;list-style:none;margin:8px 0 0;padding:8px;border-radius:16px;background:#ffffff;border:1px solid rgba(28,35,48,.1);box-shadow:0 18px 30px rgba(17,29,50,.12)}body.site .nav-item.tap>.nav-children{display:block}body.site .nav-children li+li{margin-top:6px}body.site .nav-children a{display:block;padding:9px 10px;border-radius:12px;background:#f5f8fc;color:#203048;font-size:13px}body.site .page{width:min(1120px,calc(100vw - 24px));margin:18px auto 0;padding-bottom:48px}body.site .crumbs{margin:0 0 16px}body.site .crumbs ol{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0;font-size:13px;color:#506078}body.site .crumbs li{display:inline-flex;align-items:center;gap:6px}body.site .crumbs li+li:before{content:">";color:#8a97aa}body.site .crumbs a{color:#30435f}body.site .hero{display:grid;grid-gap:14px;gap:14px}body.site h1{margin:0;font-size:16px;line-height:1.25;letter-spacing:.01em;color:#0f1724}body.site .article-desc,body.site .cat-desc,body.site .hero-copy{margin:0;color:#516176;font-size:14px;line-height:1.7}body.site .article-card,body.site .card,body.site .hero-card,body.site .panel{border:1px solid rgba(28,35,48,.09);background:rgba(255,255,255,.8);box-shadow:0 14px 30px rgba(21,31,49,.08)}body.site .hero-card{border-radius:24px;overflow:hidden}body.site .hero-grid{display:grid;grid-gap:14px;gap:14px}body.site .hero-copybox{padding:18px}body.site .hero-copybox p{margin:0;font-size:15px;line-height:1.8;color:#2e3d54}body.site .hero-media{position:relative;min-height:220px;background:#d9e2ef}body.site .hero-media img{object-fit:cover}body.site .home-grid{display:grid;grid-gap:14px;gap:14px;margin-top:14px}body.site .panel{border-radius:22px;overflow:hidden}body.site .panel-head{padding:16px 16px 0}body.site .panel-head h2,body.site .panel-head h3{margin:0;font-size:15px;line-height:1.3;color:#0f1724}body.site .panel-body{padding:14px 16px 16px}body.site .block-copy{font-size:14px;line-height:1.8;color:#36465d}body.site .block-copy>:first-child{margin-top:0}body.site .block-copy>:last-child{margin-bottom:0}body.site .media-stack{display:grid;grid-gap:12px;gap:12px}body.site .media-frame{border-radius:18px;overflow:hidden;position:relative;min-height:190px}body.site .media-frame img{object-fit:cover}body.site .article-list,body.site .friend-list,body.site .hot-list,body.site .tag-list,body.site .toc-list{list-style:none;padding:0;margin:0}body.site .article-list li+li,body.site .friend-list li+li,body.site .hot-list li+li,body.site .tag-list li+li{margin-top:10px}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}body.site .hot-list a{padding:12px 0;border-bottom:1px solid rgba(28,35,48,.08)}body.site .hot-list li:last-child a{border-bottom:0}body.site .article-list span,body.site .friend-list span,body.site .hot-list span,body.site .tag-list span{min-width:0}body.site .article-list strong,body.site .hot-list strong{font-size:14px;line-height:1.45;font-weight:600;color:#18253a}body.site .tag-list{display:flex;flex-wrap:wrap;gap:10px}body.site .tag-list li+li{margin-top:0}body.site .tag-list a{padding:10px 12px;border-radius:999px;background:#eef4fb;color:#27405f;border:1px solid rgba(39,64,95,.08);font-size:13px}body.site .friend-links{margin-top:14px;padding:16px;border-radius:22px;border:1px solid rgba(28,35,48,.09);background:rgba(255,255,255,.78)}body.site .friend-links ul{display:flex;flex-wrap:wrap;gap:10px 12px;list-style:none;margin:0;padding:0}body.site .friend-links a{font-size:13px;color:#35485f}body.site #friend-links{min-height:1px}body.site .article-layout{display:grid;grid-gap:14px;gap:14px}body.site .article-card{border-radius:24px;overflow:hidden}body.site .article-cover{position:relative;min-height:220px;background:#d9e2ef}body.site .article-cover img{object-fit:cover}body.site .article-head{padding:18px 18px 0}body.site .article-body{padding:14px 18px 18px}body.site .in-article-toc{margin:0 0 16px;padding:14px 16px;border-radius:18px;background:#f5f8fc;border:1px solid rgba(28,35,48,.08)}body.site .in-article-toc ol{margin:0;padding-left:18px;color:#24344e;font-size:13px;line-height:1.7}body.site .in-article-toc li+li{margin-top:6px}body.site .copy{font-size:15px;line-height:1.9;color:#2c384a;word-break:break-word}body.site .copy>:first-child{margin-top:0}body.site .copy>:last-child{margin-bottom:0}body.site .copy h2{margin:28px 0 12px;font-size:16px;line-height:1.35;color:#102033}body.site .copy blockquote,body.site .copy ol,body.site .copy p,body.site .copy ul{margin:0 0 14px}body.site .copy img{border-radius:16px;margin:16px 0}body.site .pager{margin-top:18px}body.site .pager ol,body.site .pager ul{display:flex;gap:10px;flex-wrap:wrap;list-style:none;margin:0;padding:0}body.site .pager a,body.site .pager span{display:inline-flex;align-items:center;min-height:38px;padding:0 14px;border-radius:999px;border:1px solid rgba(28,35,48,.12);background:#ffffff;font-size:13px;color:#24344e}body.site .meta-line{margin-top:10px;font-size:13px;color:#5c6b80}body.site .error-box{width:min(1120px,calc(100vw - 24px));margin:40px auto;padding:20px;border-radius:22px;background:rgba(255,255,255,.86);border:1px solid rgba(28,35,48,.09);box-shadow:0 14px 30px rgba(21,31,49,.08)}body.site .error-box button{margin-top:14px;border:0;border-radius:999px;height:40px;padding:0 16px;background:#1f3b63;color:#fff;font:inherit}@media (min-width:769px){body.site .topbar-inner{min-height:64px}body.site .menu{display:none}body.site .topbar{overflow:visible}body.site .topbar-inner{align-items:flex-start;padding-top:14px;padding-bottom:14px}body.site .brand{flex:none;margin-right:18px}body.site .nav-list{display:flex!important;flex:1 1;gap:10px;padding:0;margin:0;border-top:0;align-items:center;justify-content:flex-end}body.site .nav-item{flex:none}body.site .nav-link{min-height:40px;padding:0 14px;background:transparent;border-color:transparent}body.site .nav-item:hover>.nav-children{display:block}body.site .nav-children{position:absolute;left:0;top:calc(100% + 8px);min-width:220px;z-index:30}body.site .page{margin-top:24px;padding-bottom:64px}body.site .hero-grid{grid-template-columns:1.1fr .9fr;align-items:stretch}body.site .home-grid{grid-template-columns:1.1fr .9fr;align-items:start}body.site .article-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start}body.site .article-card{order:0}body.site .in-article-toc{position:-webkit-sticky;position:sticky;top:86px}body.site .friend-links ul{gap:12px 18px}}