.deep-intro{padding:54px 0 36px;border-bottom:1px solid var(--line);max-width:800px}.deep-intro h1{font-size:18px;color:var(--accent);margin:20px 0}.deep-deck{font-family:Georgia,"Songti SC","Noto Serif CJK SC",serif;line-height:1.65;color:var(--navy)}.deep-intro .deep-deck{font-size:42px;margin:16px 0 24px}.deep-intro>p:last-child{max-width:620px;color:var(--muted);line-height:1.9;font-size:16px}.deep-group{margin:40px 0}.deep-group>h2{font-size:23px;margin:0 0 22px}.deep-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 42px}.deep-card{padding:25px 0;border-top:1px solid var(--line)}.deep-card h3{font-family:Georgia,"Songti SC",serif;font-weight:650;font-size:25px;line-height:1.6;margin:12px 0}.deep-card>p:not(.eyebrow){font-size:15px;color:var(--muted);line-height:1.85;max-width:520px}.deep-meta{font-size:12px;color:var(--muted);line-height:1.9}.deep-open{display:block;font-size:13px;color:var(--accent);padding-top:14px;min-height:44px}.deep-method{border-top:1px solid var(--line);padding:24px 0;line-height:1.9;color:var(--muted);font-size:13px}.deep-title{max-width:850px;margin:38px auto 40px}.deep-title>a{font-size:13px;color:var(--accent)}.deep-title .eyebrow{margin-top:32px}.deep-title h1{font-family:Georgia,"Songti SC",serif;font-size:40px;line-height:1.5;margin:16px 0 22px;letter-spacing:-.03em}.deep-title .deep-deck{font-size:19px;color:var(--muted);margin-bottom:24px}.deep-layout{display:grid;grid-template-columns:200px minmax(0,760px);gap:48px;justify-content:center;align-items:start}.deep-toc{position:sticky;top:28px;display:grid;font-size:12px;line-height:1.8;gap:13px;border-top:2px solid var(--accent);padding-top:16px}.deep-toc a{color:var(--muted)}.deep-content{min-width:0}.deep-prose{font-size:18px;line-height:2.05;color:#293c40;overflow-wrap:anywhere}.deep-prose p{margin:0 0 25px}.deep-prose h2{font-family:Georgia,"Songti SC",serif;font-size:27px;line-height:1.65;margin:48px 0 24px;scroll-margin-top:25px}.deep-prose a{color:var(--accent);text-decoration:underline;text-underline-offset:4px;font-size:.85em}.deep-prose hr{border:0;border-top:1px solid var(--line);margin:34px 0}.deep-table{overflow-x:auto;margin:26px 0}.deep-table table{border-collapse:collapse;width:100%;min-width:540px;font-size:14px;line-height:1.8}.deep-table th,.deep-table td{padding:13px 15px;border:1px solid var(--line);text-align:left}.deep-table th{background:var(--soft)}.deep-sources{border-top:1px solid var(--line);padding-top:26px;margin-top:40px;font-size:13px;line-height:1.95;color:var(--muted);scroll-margin-top:24px}.deep-sources h2,.deep-related h2{font-size:20px;color:var(--navy)}.deep-sources summary{cursor:pointer;color:var(--accent);min-height:44px;padding:10px 0}.deep-sources li{margin:10px 0;overflow-wrap:anywhere}.deep-related{border-top:1px solid var(--line);padding:26px 0;margin-top:34px;font-size:15px;line-height:1.9}.deep-related li{margin:14px 0}.deep-article a:focus-visible,.deep-grid a:focus-visible,.deep-table:focus-visible{outline:3px solid #d3a960;outline-offset:4px}@media(max-width:850px){.deep-layout{display:block}.deep-toc{position:static;margin:0 0 32px;display:flex;flex-wrap:wrap;gap:10px 20px}.deep-toc strong{width:100%}.deep-title{margin-top:28px}.deep-title h1{font-size:32px}.deep-content{max-width:760px;margin:auto}}@media(max-width:600px){.deep-intro{padding-top:25px}.deep-intro .deep-deck{font-size:30px}.deep-grid{grid-template-columns:1fr}.deep-card h3{font-size:23px}.deep-title h1{font-size:28px}.deep-title .deep-deck{font-size:16px}.deep-prose{font-size:17px;line-height:2}.deep-prose h2{font-size:23px;margin-top:36px}.deep-meta{font-size:11px}.deep-toc{font-size:12px}.deep-sources{font-size:13px}}@media print{.masthead,.footer,.deep-toc,.deep-related{display:none}.deep-layout{display:block}.deep-title{margin:0}.deep-prose{font-size:12pt}.deep-sources details{display:block}}