:root{--bg: #f7f9fc;--panel: #ffffff;--sidebar: rgba(255, 255, 255, .76);--line: #e2e8f0;--line-soft: #edf2f7;--text: #0f172a;--muted: #64748b;--accent: #2563eb;--accent-soft: #eff6ff;--warning: #b7791f;--danger: #b42318;--success: #027a48}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:Inter,Segoe UI,sans-serif;color:var(--text);background:var(--bg)}button,input,textarea,select{font:inherit}.stock-shell{min-height:100vh;display:grid;grid-template-columns:238px minmax(0,1fr)}.stock-shell.collapsed{grid-template-columns:80px minmax(0,1fr)}.stock-rail{padding:20px 18px;border-right:1px solid var(--line);background:var(--sidebar);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);display:flex;flex-direction:column}.stock-brand{display:flex;gap:10px;align-items:center;margin-bottom:20px}.stock-brand-mark{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:var(--accent-soft);border:1px solid 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