body.site{margin:0;color:#18202a;background:radial-gradient(circle at top left,rgba(46,103,140,.14),transparent 32%),linear-gradient(180deg,#f5f7fb,#eef3f8 38%,#f8fafc);font-family:var(--font-serif),Georgia,"Times New Roman",serif}body.site a{color:inherit;text-decoration:none}body.site img{display:block;max-width:100%;height:auto}body.site .page-shell{width:min(100%,1180px);margin:0 auto;padding:0 16px 36px}body.site .topbar{position:-webkit-sticky;position:sticky;top:0;z-index:40;-webkit-backdrop-filter:saturate(1.1) blur(10px);backdrop-filter:saturate(1.1) blur(10px);background:rgba(245,247,251,.86);border-bottom:1px solid rgba(24,32,42,.08)}body.site .topbar-inner{width:min(100%,1180px);margin:0 auto;padding:12px 16px;display:flex;align-items:center;gap:12px;justify-content:space-between}body.site .brand{display:inline-flex;align-items:center;gap:10px;min-width:0}body.site .brand-mark{width:11px;height:11px;border-radius:999px;background:linear-gradient(135deg,#2e678c,#77a4c5);box-shadow:0 0 0 5px rgba(46,103,140,.12);flex:none}body.site .brand-text{font-size:16px;line-height:1.2;font-weight:700;letter-spacing:.02em;color:#16212d}body.site h1{margin:0;font-size:16px;line-height:1.3}body.site .menu{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid rgba(24,32,42,.14);background:#ffffff;color:#16212d;border-radius:999px;padding:9px 12px;font:inherit;font-size:14px;line-height:1;box-shadow:0 8px 24px rgba(24,32,42,.06)}body.site .nav-list{position:absolute;left:0;right:0;top:100%;display:none;margin:0;padding:12px 16px 16px;list-style:none;background:#ffffff;border-bottom:1px solid rgba(24,32,42,.08);box-shadow:0 18px 30px rgba(24,32,42,.08)}body.site.nav-open .nav-list{display:block}body.site .nav-item{position:relative;margin:0 0 8px}body.site .nav-link,body.site .nav-parent{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 12px;border-radius:14px;background:#f4f7fb;border:1px solid rgba(24,32,42,.08);font-size:14px;line-height:1.25}body.site .nav-parent:after{content:"";width:8px;height:8px;border-right:1.5px solid;border-bottom:1.5px solid;transform:rotate(45deg);opacity:.65;margin-left:auto}body.site .nav-item.has-children.tap>.nav-sub{display:block}body.site .nav-sub{display:none;margin:8px 0 0;padding:10px;list-style:none;background:#ffffff;border:1px solid rgba(24,32,42,.1);border-radius:16px;box-shadow:0 14px 26px rgba(24,32,42,.08)}body.site .nav-sub li+li{margin-top:6px}body.site .nav-sub a{display:block;padding:10px;border-radius:12px;background:#f7fafc}body.site .article-card,body.site .hero,body.site .intro-card,body.site .list-card,body.site .panel{background:rgba(255,255,255,.78);border:1px solid rgba(24,32,42,.08);box-shadow:0 16px 36px rgba(24,32,42,.06);border-radius:22px}body.site .home-grid{display:grid;grid-gap:14px;gap:14px;margin-top:14px}body.site .hero{overflow:hidden}body.site .hero-media{aspect-ratio:16/10;background:#dce8f1}body.site .hero-body{padding:16px}body.site .hero-body h1{font-size:16px;margin-bottom:10px}body.site .hero-body .copy{font-size:14px;line-height:1.8;color:#435260}body.site .split-grid{display:grid;grid-gap:14px;gap:14px}body.site .panel{padding:16px}body.site .section-title{margin:0 0 12px;font-size:16px;line-height:1.3}body.site .article-list,body.site .crumbs ol,body.site .friend-list,body.site .hot-list,body.site .tag-list,body.site .toc-list{margin:0;padding:0;list-style:none}body.site .article-list li+li,body.site .friend-list li+li,body.site .hot-list li+li{margin-top:10px}body.site .hot-list a,body.site .tag-list a{display:block;padding:12px 14px;border-radius:14px;background:#f6f9fc;border:1px solid rgba(24,32,42,.08)}body.site .tag-list{display:flex;flex-wrap:wrap;gap:10px}body.site .tag-list a{padding:10px 12px}body.site .block-card{overflow:hidden}body.site .block-card .block-media{aspect-ratio:16/9}body.site .block-card .block-body{padding:14px 16px 16px}body.site .article-page h1,body.site .block-card h2,body.site .list-page h1{margin:0;font-size:16px;line-height:1.3}body.site .article-desc,body.site .cat-desc{margin:10px 0 0;font-size:14px;line-height:1.8;font-weight:400;color:#4f5f6e}body.site .crumbs{margin:0 0 14px}body.site .crumbs ol{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:13px;color:#526170}body.site .crumbs li{display:inline-flex;align-items:center;gap:6px}body.site .crumbs li+li:before{content:">";opacity:.55}body.site .article-page,body.site .list-page{padding-top:14px}body.site .article-hero{overflow:hidden;margin-bottom:14px}body.site .article-hero .cover{aspect-ratio:16/9}body.site .article-body{padding:16px}body.site .toc{margin:0 0 14px;padding:14px;border-radius:18px;background:#f7fafc;border:1px solid rgba(24,32,42,.08)}body.site .toc ol{margin:0;padding-left:20px}body.site .toc li+li{margin-top:8px}body.site .copy{font-size:15px;line-height:1.95;color:#27323d}body.site .copy h2{margin:28px 0 12px;font-size:16px;line-height:1.35}body.site .copy ol,body.site .copy p,body.site .copy ul{margin:0 0 16px}body.site .pager{display:flex;justify-content:center;margin-top:18px}body.site .pager a,body.site .pager span{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 12px;border-radius:999px;background:#ffffff;border:1px solid rgba(24,32,42,.1);box-shadow:0 10px 24px rgba(24,32,42,.05)}body.site #friend-links{margin-top:14px;padding:16px}body.site #friend-links .friend-list{display:grid;grid-gap:10px;gap:10px}body.site .site-footer{width:min(100%,1180px);margin:18px auto 0;padding:0 16px 26px;color:#5d6a77;font-size:13px}@media (min-width:769px){body.site .topbar-inner{gap:18px}body.site .menu{display:none}body.site .topbar{position:-webkit-sticky;position:sticky}body.site .nav-list{position:static;display:flex;align-items:center;gap:10px;padding:0;margin:0;background:transparent;border:0;box-shadow:none;overflow:visible}body.site .nav-item{margin:0}body.site .nav-link,body.site .nav-parent{background:rgba(255,255,255,.7)}body.site .nav-item.has-children:hover>.nav-sub{display:block}body.site .nav-sub{position:absolute;top:calc(100% + 10px);left:0;min-width:220px;z-index:20}body.site .home-grid{grid-template-columns:1.25fr .85fr;align-items:start}body.site .split-grid{grid-template-columns:1fr 1fr}body.site #friend-links,body.site .article-body,body.site .hero-body,body.site .panel{padding:20px 22px}}