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28px}.app-header{background:linear-gradient(180deg,#151b23,#101720);border-bottom:1px solid var(--line)}.header-inner{padding-top:24px}.brand-row{display:flex;align-items:center;gap:14px;margin-bottom:18px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:8px;background:#17324f;color:#bfdbfe;font-size:12px;font-weight:800;letter-spacing:0}h1,h2,h3,p{margin:0}h1{font-size:23px;line-height:1.2;letter-spacing:0}.brand-row p,.section-head p,.detail-head p{margin-top:4px;color:var(--muted);font-size:13px}.tabs{display:flex;gap:4px;overflow-x:auto}.tab{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 16px;color:var(--muted);background:transparent;border:0;border-bottom:2px solid transparent;border-radius:8px 8px 0 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